709 results on '"Wheeling"'
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2. Effective stress and shear strength parameters of unsaturated soils as affected by compaction and subsequent shearing.
- Author
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Huang, Xinjun, Ren, Tusheng, and Horn, Rainer
- Subjects
- *
SHEARING force , *COMPACTING , *STRAINS & stresses (Mechanics) , *SOIL compaction , *PORE water pressure , *SOILS , *THERMAL properties , *COULOMB friction - Abstract
Wheeling induced compression and shearing forces are main stresses accounting for soil deformation and changes of hydraulic, gaseous and thermal properties. There are reports about the combined effects of compaction and subsequent shearing on soil hydraulic properties, but their consequences on soil strength properties (i.e., effective stress and shear strength) need to be further analysed. This study investigated the dynamics of soil mechanical properties as affected by pore water pressure (uw$$ {u}_{\mathrm{w}} $$) during compaction and shearing. Soil samples from an A‐horizon of Gleysols derived from glacial sediment and a Stagnic Luvisol from loess were analysed. The repacked and structured samples were compressed under static and cyclic loading and then sheared at two speeds (0.3 and 2.0 mm min−1) with three loading levels (50, 100, and 200 kPa). During each stress application, the uw$$ {u}_{\mathrm{w}} $$, chi factor (χ) and effective stress (σ′$$ {\sigma}^{\prime } $$) were measured and calculated. The shear strength (τ$$ \tau $$), angle of internal friction (φ$$ \varphi $$) and cohesion (c$$ c $$), were determined and fitted by the Mohr–Coulomb failure criterion. The results showed that compaction and shearing increased uw$$ {u}_{\mathrm{w}} $$ and χ in all homogenized soils while on structured soils this phenomenon only occurred when the applied loading stress exceeded the soil precompression stress. The increased uw$$ {u}_{\mathrm{w}} $$ resulted in soil hydraulic and mechanical stresses, which ultimately reduced the σ′$$ {\sigma}^{\prime } $$, especially at −6 kPa initial matric potential. Soils with finer texture, higher loading stresses and faster shear speed normally exhibited more reduced σ′$$ {\sigma}^{\prime } $$ values. The structured soil had higher τ$$ \tau $$ values with higher φ$$ \varphi $$ and c$$ c $$ compared to the homogenized soils. The changes of uw$$ {u}_{\mathrm{w}} $$ at high loading stress (i.e., 200 kPa) may overlap the normal pattern of the Mohr–Coulomb failure line that results from the theoretical Mohr envelope. Thus, to minimize the destruction of soil structure and stability induced by wheeling, it is important to consider field water content, traffic loading and wheeling speed. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. New Designs for Regulations on City Gas Pipeline Networks in Japan
- Author
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Kusanagi, Shinichi, Yanagawa, Takashi, Series Editor, and Kusanagi, Shinichi, editor
- Published
- 2021
- Full Text
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4. Review Perhitungan Biaya Wheeling
- Author
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Yusuf Susilo Wijoyo, Sasongko Pramono Hadi, and Sarjiya
- Subjects
wheeling ,fairness ,alokasi biaya ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Wheeling merupakan solusi dari kompleksnya permasalahan pembangunan jaringan transmisi. Dengan konsep wheeling, pemilik pembangkit dapat menyalurkan tenaga listrik ke bebannya tanpa harus membangun jaringan transmisi. Pemilik pembangkit tersebut dapat memanfaatkan jaringan transmisi milik entitas lain. Konsep wheeling menjadi suatu hal yang menarik dalam kaitannya dengan peningkatan penetrasi energi terbarukan saat ini. Hal ini disebabkan pembangunan jaringan transmisi merupakan salah satu kendala dalam peningkatan penetrasi energi terbarukan. Fairness pada biaya wheeling sampai saat ini masih menjadi salah satu topik penting. Bahasan terkait biaya wheeling menitikberatkan agar biaya yang dibebankan pada setiap pihak yang terlibat dapat memenuhi kaidah fairness, yaitu sesuai dengan kontribusinya masing-masing pada implementasi wheeling. Secara garis besar, penelitian terkait wheeling dapat dikelompokkan menjadi penelitian untuk pengembangan metode perhitungan biaya wheeling dan penelitian untuk pengembangan metode alokasi biaya wheeling. Pengembangan metode perhitungan biaya wheeling juga mencakup pengembangan komponen biaya yang dapat dimasukkan dalam perhitungan biaya. Makalah ini merangkum pembahasan biaya wheeling pada tiga aspek, yaitu metode perhitungan, komponen biaya, dan mekanisme alokasi biaya.
- Published
- 2020
- Full Text
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5. Historical GIS for Vernacular Architecture Surveys & Virtual Reconstruction of Urban Cultural Landscapes: A Case Study in 1850s Wheeling, (West) Virginia.
- Author
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Bonenberger, Dan
- Abstract
The reconstruction and interpretation of early American streetscapes is a tremendous challenge for preservationists and Virtual Heritage scholars alike. In historic preservation, reconstruction is taboo due to concerns over uncertainty and authenticity. Wheeling (West) Virginia's Webster (now 20th) street, for example, has been so drastically altered by urban development and redevelopment over the past 160 years that only a single building from the 1850s survives. Lack of knowledge about this place has hampered the ability of scholars to interpret the early influences and world view of Rebecca Harding Davis, who lived there during the years prior to writing her seminal works of American Literary Realism. This paper examines opportunities and challenges associated with a geographic approach to the virtual reconstruction of such places. The methodology includes several important steps beginning with the identification, digitization, and storage of archival evidence. Historic maps were georegistered to recent orthophotographs in a Geographic Information System (GIS). Subsequent analysis identified likely surviving contemporary dwellings nearby, which were verified by research in deed and tax records and intensive field recording. To reconstruct the cultural landscape of Webster street, where Rebecca Harding Davis lived in the 1850s, 3D digital models were produced in SketchUp to visually reflect the quality of data available for each building. Accurate models of vernacular architecture and other cultural landscape elements were assembled upon a digital terrain model in Unity3D, and the scene was exported into the HTC Vive head-mounted Virtual Reality display. The entire system is evaluated as a tool for historic preservation, cultural geography, education, and interpretation. [ABSTRACT FROM AUTHOR]
- Published
- 2020
6. Implementation design of energy trading monitoring application for blockchain technology-based wheeling cases
- Author
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Rezi Delfianti, Bima Mustaqim, Fauzan Nusyura, Ardyono Priyadi, Imam Abadi, and Adi Soeprijanto
- Subjects
Smart energy trading ,Blockchain ,General Computer Science ,Monitoring ,Mobile application ,Wheeling ,Electrical and Electronic Engineering - Abstract
One obstacle to the energy industry’s tendency toward adopting renewable energy is the requirement for a monitoring system for energy transactions based on microgrids in the wheeling scheme (shared use of utility networks). The quantity of transaction expenses for each operational generator is not monitored in any case. In this project, a mobile phone application is developed and maintained to track the total amount of fees paid and received by all wheeling parties and the amount of electricity produced by the microgrid. In the wheeling case system research, the number of transaction costs, such as network rental fees, loss costs, and profit margins, must be pretty calculated for all wheeling participants. The approach created in this study uses a blockchain system to execute transactions, and transactions can only take place if the wheeling actor and the generator have an existing contract. The application of energy trading is the main contribution of this research. The created application may track energy transfers and track how many fees each wheeling actor is required to receive or pay. Using a security system to monitor wheeling transactions will make energy trades transparent.
- Published
- 2023
7. Physical activity measurement in people with spinal cord injury: comparison of accelerometry and self-report (the Physical Activity Recall Assessment for People with Spinal Cord Injury).
- Author
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Ma, Jasmin K., McCracken, Laura A., Voss, Christine, Chan, Franco H. N., West, Christopher R., and Martin Ginis, Kathleen A.
- Subjects
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CHRONIC diseases , *RESEARCH funding , *SELF-evaluation , *SPINAL cord injuries , *WHEELCHAIRS , *QUALITATIVE research , *ACCELEROMETRY , *INDEPENDENT living , *PHYSICAL activity , *DESCRIPTIVE statistics - Abstract
Purpose: To (1) evaluate the level of agreement between individually calibrated accelerometers and the self-reported Physical Activity Recall Assessment for People with Spinal Cord Injury when assessing moderate-vigorous physical activity; and (2) qualitatively examine the different components of physical activity each measure assesses. Materials/methods: Nineteen manual wheelchair users with chronic spinal cord injury (19.0 ± 12.9 years post injury, C5-L2 injury level) wore a wrist and spoke accelerometer for one week then returned to the lab and completed the Physical Activity Recall Assessment for People with Spinal Cord Injury for their last 3 days of accelerometer wear. Results: Bland-Altman plots revealed low levels of agreement between the two measures when measuring total (bias = −5.6 ± 70.41 min/d, 95% agreement limits = −143.6–132.4 min/d), wheeled (bias = −9.7 ± 30.2 min/d, 95% agreement limits = −69.0–49.5 min/d), and non-wheeled (bias =12.3 ± 53.8 min/d, 95% agreement limits = −93.1–117.6 min/d) moderate-vigorous physical activity. The accelerometer was beneficial for detecting intermittent or brief activities while the self-report measure was useful for measuring lifting activities (e.g., resistance training) and wheeling on inclined surfaces. Conclusion: Total and wheeled moderate-vigorous physical activity measured by an accelerometer and a self-report measure showed low agreement at the individual level. Additional research is needed to examine whether physical activity may be best measured using accelerometers and a self-report measure concurrently. Accurate physical activity measurement has important implications for understanding the relationship between physical activity and health outcomes. Many limitations exist to accurately measuring physical activity in people with spinal cord injury. The most commonly used measures of physical activity in spinal cord injury are accelerometers and the self-reported Physical Activity Recall Assessment for People with Spinal Cord Injury. Accelerometers and the Physical Activity Recall Assessment for People with Spinal Cord Injury show low levels of agreement, highlighting that there are differences in the specific physical activity patterns that each measure is able to capture. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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8. 'So nobly struggling for their manhood': masculinity and violence among steelworkers in the wheeling district, 1880–1910.
- Author
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Martin, Lou
- Subjects
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STEEL industry , *EMPLOYEES , *HISTORY of labor unions , *STEEL industry strikes , *MASCULINITY , *MASCULINE identity - Abstract
Between 1880 and 1910, new technologies and managerial schemes undermined skilled steelworkers' ability to control production and demand high wages, which also threatened their sense of manhood. The steelworkers in the Wheeling District of northern West Virginia and eastern Ohio remained a union stronghold until the 1909–1910 steel strike. Steelworkers defined manhood in terms of their family wage, a manly bearing toward their bosses, solidarity with fellow workers, and their rights, all closely associated with union membership. Faced with the loss of their union, they turned to violence – not just out of frustration or to win the strike – but also to defend their rights and freedoms and reclaim their masculine identity. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
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9. Člověk na dvou kolech: Cyklistická doprava mezi sídly a v jejich nitru.
- Author
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Klingorová, Irena
- Abstract
There has been a renaissance of the bicycle as a means of transport since the last decade. People are returning back to cycling as they did in the first half of the twentieth century, before the cars appeared. Cycling gets equal footing with the other means of transport again, whether it is cycling for comuting or just for recreation. It has become a common part of urban planning. Recently, a lot of trails and routes specifically for cycling have been made. These ways are further developed under considerable support provided by state institutions, public and other organizations. There has been an increasing number of people who use a bicycle year after year. Pedalling can improve rider´s health, it helps reduce the number of cars on the roads and thus decrease the amount of air pollution. The following text shows the possibility of bike transport in and outside the city. The solution of cycling routes in urban areas is quite different than the solution of routes in nature. In towns it is a more intricate problem involving coordination with other transport modes and the availability of space. With planning in rural areas, there is not so much limitation and it offers a wider range of options for routing solutions. In towns and cities cycling directions are especially seen in the context of existing roads or on special paths and routes. Worth mentioning is the connection of cycle-roads from the outskirts to the inner city routes. Together they should form a continuous system which has no complications and which can safely lead a cyclist from the mountains to a city center. This article also shows examples of realization - case studies of different types of cycling routes (urban area / rural area, sharing space with cars / segregated cycling), which will show a variety of different options for solutions of routes for cyclists in settlements beyond their borders. [ABSTRACT FROM AUTHOR]
- Published
- 2017
10. Influence of thyristor-controlled series capacitor on wheeling cost incorporating the impact of real and reactive power losses.
- Author
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IRINJILA, Kranthi Kiran and ASKANI, Jaya Laxmi
- Subjects
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THYRISTOR control , *RELIABILITY in engineering , *ELECTRIC vehicles , *REACTIVE power control , *SMART power grids - Abstract
Electric power transmission and transmission pricing are the key issues in the deregulated electric power industry. Factors like fast power demand growth, competition, service outage, and scarce natural resources make transmission systems operate close to their thermal limits. However, new transmission systems cannot be built in due to economic, environmental, and political reasons. For better utilization of existing power system capacities, the power electronic technology-based power system equipment called flexible alternating current transmission system (FACTS) devices like thyristor-controlled series compensators (TCSCs) can be effectively used for operating the transmission grid economically, rapidly, dynamically, and efficiently with increased flexibility and efficiency under different loading conditions. TCSCs, being costly devices, may adversely affect some deregulated power market participants. This paper proposes a unit commitment algorithm for the minimization of power losses and determination of optimal location for TCSC placement. The impact of the TCSC in conjunction with the application of the proposed algorithm on the generation cost and wheeling cost is analyzed using a power flow-based line-by-line rolled-in transmission pricing scheme. The comparison between the annual generation costs and annual wheeling costs with and without the TCSC is carried out under different load conditions in the IEEE 30-bus system. Results and simulations validate the economy of the suitable TCSC's optimal presence over its absence. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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11. The total social cost evaluation of two wind and PV energy development modes: A study on Henan of China
- Author
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Tiankai Yang, Yuan Zeng, Yunfei Li, Bing Sun, and Shimeng Dong
- Subjects
business.industry ,Computer science ,Social cost ,Photovoltaic system ,Mode (statistics) ,Total social cost ,Scene representing extreme situation ,Turbine ,Wheeling ,Automotive engineering ,TK1-9971 ,Local development and consumption mode ,General Energy ,Energy development ,Scene reflecting current situation ,Electricity ,Large-scale and long-distance transmission mode ,Electrical engineering. Electronics. Nuclear engineering ,business ,Cost of electricity by source ,Bi-level generation planning model - Abstract
In Henan province of China, the power demand is vigorous, and the existing provincial generators are mostly high-carbon. Henan faces greater challenges in electricity revolution than other provinces. Currently, there are two development modes for generating low-carbon electricity in Henan: the “large-scale and long-distance transmission” (LSLDT) mode and the “local development and consumption” (LDC) mode. To make a better choice on development mode, following works have been done. Firstly, as there is still no macro evaluation on the self-sufficiency ratio by photovoltaic (PV) power in each region of Henan, a rooftop PV installation potential evaluation method based on the roof covering rate is proposed. And two development scenes for wind and PV power generation are set to fit the development trend of Henan in the near future. Secondly, as the load can only be stably supplied by the cooperation of wind turbine, PV equipment and other controllable generation, the real cost of wind turbine and PV power generation is never only the equipment investment. Different from the commonly used levelized cost of electricity method, a bi-level generation planning model based on the total social cost is established. Finally, generation planning schemes are made and the power supply cost per kWh electricity is evaluated under the two development scenes mentioned above. It is found that there is a significant cost advantage when wind and PV electricity are generated with the LDC mode in both scenes. What is more, the existence of reliability cost, wheeling cost and grid-loss cost makes the LSLDT mode difficult to cut down the wind and PV power supply cost. Wind and PV power generation of the LDC mode should be focused on in Henan.
- Published
- 2021
12. 33 actions for an anti-ableist Montréal
- Author
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Laurence Parent
- Subjects
Politics ,Right to the city ,Mobilities ,Applied Mathematics ,Face (sociological concept) ,Gender studies ,Sociology ,Ableism ,Sense of belonging ,Wheeling ,Built environment - Abstract
This article steams from my doctoral thesis entitled “Rouler/Wheeling Montréal: Moving through, Resisting and Belonging in an Ableist City” (Parent, 2018). My thesis examined fifteen disabled Montrealers’ everyday mobilities and two different dimensions of participants’ sense of belonging: their belonging in Montréal disability communities and their belonging in the city. Participants’ stories show that their right to the city and their capacity to move through it are severely compromised because ableism is embedded in Montréal’s built environment and culture. This article explores three issues and 33 actions for an an anti-ableist Montréal. The first issue is presented as a question: How can we build an anti-ableist city? The second issue concerns disabled Montrealers’ mobilities in the face of climate change and the third explores the representations of disabled Montrealers in the media and civic and political life.
- Published
- 2021
- Full Text
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13. Performance comparison of FACTS controllers for transmission pricing diminution
- Author
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Kranthi Kiran Irinjila and Jaya Laxmi Askani
- Subjects
deregulation ,wheeling ,transmission pricing ,power flow tracing ,unit commitment ,facts ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
The deregulated electric power industry creates a scope for the private companies to enter and compete in different activities of electric power system market. The electricity transmission and the determination of wheeling cost are more challenging in the deregulated power environment. Flexible Alternating Current Transmission System (FACTS) controllers are used for solving various transmission system problems for the maximum benefit. This paper proposes a power flow tracing methodology incorporating the contribution of each generating unit towards load demands and line flows, for the computation of both generation cost and wheeling cost. Also the rating and location of different types of FACTS devices for the minimization of line losses for the shrinkage of both generation cost and wheeling cost, and an optimal unit commitment algorithm for further reduction of both costs are proposed. Case study is taken for the standard IEEE 30-bus system, for verifying the effectiveness of the proposed algorithm.
- Published
- 2018
- Full Text
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14. Encouraging sustainable travel behaviour in children, young people and their families
- Author
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Colley, Kathryn, Brown, Caroline, Nicholson, Hebe, Hinder, Ben, and Conniff, Anna
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wheeling ,public transport ,walking ,cycling ,net zero ,climate change ,place making ,sustainable travel ,infrastructure ,play - Abstract
This research provides evidence to support the future development of integrated policy interventions to increase sustainable travel amongst Scotland’s CYP and their families. The research focuses on wider travel behaviours beyond the journey to/from school and uses international case studies to recommend actions for national and local government in Scotland.
- Published
- 2022
15. Chiselling and wheeling on sandy loam long-term no-tillage soil: compressibility and load bearing capacity
- Author
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Vanderleia Trevisan da Rosa, Edberto Moura Lima, David Peres da Rosa, and José Miguel Reichert
- Subjects
Minimum tillage ,Tillage ,Loam ,Compaction ,Soil Science ,Environmental science ,Soil horizon ,Soil science ,Environmental Science (miscellaneous) ,Bulk density ,Wheeling ,Earth-Surface Processes ,Soil compaction (agriculture) - Abstract
Traffic on arable land is one of the main causes of soil compaction, threatening soil function and quality. The objective of this study was to evaluate tillage and wheeling effects on mechanical properties on Hapludalf soil. We evaluated four combinations of management system and wheeling traffic: 13 years of no-tillage (NT), NT compacted with additional wheeling (NTc), minimum tillage (chiselling) soil (MT), and MT compacted with additional wheeling (MTc). Soil bulk density (Bd), macroporosity (Mp), precompression stress (σp), compressibility coefficient (Cc), and relative deformation were determined in four soil layers. Soil with greater Bd had higher σp and lower Mp and Cc, where statistical significance varied depending on soil depth, tillage, and additional compaction. Soil tillage did not affect Bd, but Mp was lowest in the no-till pan layer (0.05–0.15 m), and additional compaction decreased Mp in deeper layers. Long-term NT had greater σp and Cc than MT soil, while wheeling increased σp and decreased Cc in MT, only in the upper layer. Four wheelings with 1.1 Mg wheel load on no-tillage soil and two wheelings with 3.2 Mg wheel load on chiselled-soil decreased Mp in deeper (down to 0.25–0.35 m) layers, but only high load increased σp and decreased Cc in upper layers of chiselled-soil. Surface compaction in conservation agriculture is a major issue, since soil mobilisation by soil tillage should be avoided.
- Published
- 2021
- Full Text
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16. Multi Machine Power System Stability Enhancement Using Static Sychronous Series Compensator (SSSC)
- Author
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G Srikanth
- Subjects
Computer science ,General Mathematics ,AC power ,Wheeling ,Education ,law.invention ,Power (physics) ,Computational Mathematics ,Electric power system ,Electric power transmission ,Computational Theory and Mathematics ,law ,Control theory ,Alternator ,Transient (oscillation) - Abstract
These days, the requirement for flexible and quick power stream control in the transmission framework is foreseen to increment later on taking into account utility liberation and power wheeling prerequisite. Diminishing the compelling reactance of lines by series remuneration is an immediate approach to build transmission ability. Nonetheless, power move capacity of long transmission lines is restricted by dependability contemplations. On account of the power electronic exchanging abilities as far as control and fast, more focal points have been done in FACTS gadgets regions and presence of these gadgets in transient security during transient flaws bringing about progress in power framework solidness. In this examination, a static synchronous series compensator (SSSC) is utilized to research the impact of this gadget in controlling active and reactive powers just as damping power framework motions in transient mode. The Proportional-Integral Controller (PI) controller is utilized to tune the circuit and to give the zero sign blunder. Static Synchronous Series Compensator (SSSC) is series reactive power remuneration to a power framework. The yield of a SSSC is series infused voltage, which leads or slacks line current by 90°, in this manner copying a controllable inductive or capacitive reactance. SSSC can be utilized to lessen the line impedance and upgrade the active power move ability of the line. With the boundaries and control, the SSSC is discovered successful to direct load voltage during abrupt difference in the heaps. The SSSC additionally furnishes stable activity with dynamic enlistment engine load and mitigates the insecure and swaying conduct that is coming about during the activity of remunerated Alternator with dynamic engine load.
- Published
- 2021
- Full Text
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17. Efficiency and perceived exertion of manual wheelchair propulsion: a physiological comparison of push vs pull wheeling
- Author
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Harleen Kalra, Bonita Sawatzky, Megan K. MacGillivray, and Alireza Habibi
- Subjects
Male ,medicine.medical_specialty ,Physical Exertion ,0206 medical engineering ,Biomedical Engineering ,02 engineering and technology ,Perceived exertion ,Propulsion ,01 natural sciences ,Manual wheelchair ,Physical medicine and rehabilitation ,medicine ,Humans ,business.industry ,010401 analytical chemistry ,Biomechanics ,Human factors and ergonomics ,General Medicine ,020601 biomedical engineering ,Wheeling ,Biomechanical Phenomena ,0104 chemical sciences ,Wheelchairs ,Motor Skills ,Arm ,Upper extremity pain ,business ,human activities - Abstract
Manual wheelchair users face a high prevalence of upper extremity pain and injuries associated with poor biomechanics and the relatively low mechanical efficiency of conventional push wheeling. Recently developed geared wheels, which permit the wheelchair user to propel forwards by pulling at the handrims using a 'rowing' motion, have been speculated to improve ergonomics and reduce operational energy costs. This study compared the gross mechanical efficiency (GME) and perceived exertion (RPE) of these geared wheels to standard wheelchair wheels after a motor skill-based training session was conducted to familiarise participants with using both wheels. Fourteen able-bodied males were enrolled in the study. A within-participants, repeated-measures design was used to assess oxygen uptake (VO
- Published
- 2021
- Full Text
- View/download PDF
18. Assessment and Allocation of Wheeling Service Prices among System Users through Power Tracing
- Author
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Seema N. Pandey, Laxmi Srivastava, and Abhishek Saxena
- Subjects
Service (business) ,Computer science ,business.industry ,Tracing ,Telecommunications ,business ,Wheeling ,Power (physics) - Published
- 2021
- Full Text
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19. Confessions of the half-caste, or wheeling strangers of here and everywhere
- Author
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Amrita Dhar
- Subjects
Cultural Studies ,History ,Literature and Literary Theory ,Tragedy ,Caste ,Ableism ,Colonialism ,Medieval literature ,Wheeling ,Philosophy ,Aesthetics ,Phenomenon ,Literary criticism ,Sociology - Abstract
This essay reads two Othellos together – Shakespeare’s seventeenth-century play and Vishal Bhardwaj’s 21st-century film – to attend to the caste- and gender-based confessions that drive the plot of Omkara. Through close attention to selected scenes from the film, this work demonstrates that casteism, a phenomenon cemented by India’s colonial past and thus reflecting the subcontinent’s neo-colonial (instead of post-colonial) reality, along with entrenched misogyny and ableism, work together to precipitate the tragedy of Dolly and Omkara. In bringing these apparently distant texts together, and in its commitment to intersectional exploration of embodiment, this work is a deliberate exercise in such transtemporal and transcultural thinking that literary criticism should enable.
- Published
- 2020
- Full Text
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20. Wheeling Out Urban Resilience: Philanthrocapitalism, Marketization, and Local Practice
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Eric Sheppard, Helga Leitner, and Sophie Webber
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Local practice ,05 social sciences ,Geography, Planning and Development ,0211 other engineering and technologies ,0507 social and economic geography ,Urban policy ,021107 urban & regional planning ,02 engineering and technology ,Wheeling ,Business ,Economic system ,Marketization ,Urban resilience ,050703 geography ,Earth-Surface Processes - Abstract
In this article, we examine how urban resilience has emerged as a global urban policy project, offering solutions for cities about how they can adapt to and recover from shocks and stresses, partic...
- Published
- 2020
- Full Text
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21. Effect of seat height on manual wheelchair foot propulsion, a repeated-measures crossover study: part 2 – wheeling backward on a soft surface
- Author
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Cher Smith, Ronald Lee Kirby, Nathaniel David Heinrichs, Christopher John Theriault, Kristin Frances Joyce Russell, and Steve Doucette
- Subjects
030506 rehabilitation ,Cross-Over Studies ,Foot ,Computer science ,Rehabilitation ,Biomedical Engineering ,Repeated measures design ,Physical Therapy, Sports Therapy and Rehabilitation ,Propulsion ,Crossover study ,Wheeling ,Biomechanical Phenomena ,Manual wheelchair ,03 medical and health sciences ,Speech and Hearing ,0302 clinical medicine ,Wheelchair ,Lower Extremity ,Wheelchairs ,Humans ,Orthopedics and Sports Medicine ,0305 other medical science ,030217 neurology & neurosurgery ,Foot (unit) ,Simulation - Abstract
The aim of this study was to test the hypotheses that, during manual-wheelchair foot propulsion backward on a soft surface, lowering the seat height increases speed, push frequency and push effectiveness, and decreases perceived difficulty.In a repeated-measures crossover study, 50 able-bodied participants used one foot to propel a manual wheelchair 5 m backward on a soft surface at 5 seat heights, ranging from 5.08 cm below to about 5.08 cm above lower-leg length, in random order. We recorded Wheelchair Skills Test (WST) capacity scores and used the Wheelchair Propulsion Test (WPT) to calculate speed (m/s), push frequency (cycles/s) and push effectiveness (m/cycle). We also recorded the participants' perceived difficulty (0-4) and video-recorded each trial.WST capacity scores were reduced at the higher seat heights. Using repeated-measures models (adjusted for age, sex and order), there were negative relationships between seat height and speed (During manual-wheelchair foot propulsion backward on a soft surface, lowering the seat height increases speed and push effectiveness, and decreases perceived difficulty.IMPLICATIONS FOR REHABILITATIONBackward wheelchair foot propulsion on soft surfaces is affected by seat height.Speed (m/s) is improved if the seat height is lowered.Push effectiveness (m/gait cycle) is improved if the seat height is lowered.Perceived difficulty of propulsion is lower if the seat height is lowered.
- Published
- 2020
- Full Text
- View/download PDF
22. Enhancement of electricity wheeling charges by incorporating FACTS controller in restructured power system
- Author
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Gaurav Gupta, Manisha Dubey, and Anoop Arya
- Subjects
010302 applied physics ,Cost allocation ,Mains electricity ,Computer science ,020206 networking & telecommunications ,02 engineering and technology ,General Medicine ,Transmission system ,AC power ,01 natural sciences ,Wheeling ,Reliability engineering ,Electric power system ,Electric power transmission ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Electric power industry - Abstract
In the past few decades, the demand for electricity has increased substantially. A number of factors affect this rapid rise in electricity demand. With this increased demand the role of transmission network becomes crucial for suitable operation, especially under restructured environment. The different limitations such as stability limit, voltage limit and thermal limits enforce restrictions on power wheeling capability of transmission lines. The major issues associated with power industry especially in the pool-based market are the recovery of transmission costs apportioned between the diverse. Restructuring of the electricity supply industry has taken place around the world. This restructuring consists of various new aspects such as transmission embedded cost allocation, reactive power cost allocation, transmission loss allocation, the impact of power flow regulating devices etc. Many methodologies and algorithms were proposed for addressing these issues. In this paper, FACTS incorporated power flow model is used for the determination of flow of real and reactive power by using the power flow tracing principle, which involves matrix properties for the real and reactive power allocation and cost allocation for different participants. FACTS devices which have the capability of regulating the power flow and voltage support at the buses. Hence UPFC incorporated in the transmission system have been considered in this paper. Comparative results with and without FACT controller are present for the sample 5 bus system and methodology also tested on IEEE 14 bus system.
- Published
- 2020
- Full Text
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23. Impact of Distribution Network Reconfiguration and Optimal Capacitor Placement under Wheeling Transactions
- Author
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Nemmani Ramana and Telugu Sreedhar
- Subjects
Capacitor ,Distribution networks ,business.industry ,Computer science ,law ,Applied Mathematics ,Modeling and Simulation ,Electrical engineering ,Control reconfiguration ,business ,Engineering (miscellaneous) ,Wheeling ,law.invention - Published
- 2020
- Full Text
- View/download PDF
24. Application of Monte Carlo Analysis and Self-Organizing Maps to De-Risk Compressor Re-Wheeling
- Author
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Robert Barrie and Greg Michael Nelson
- Subjects
Self-organizing map ,Computer science ,Monte Carlo method ,Gas compressor ,Algorithm ,Wheeling - Abstract
Objectives / Scope Re-wheeling compressors to match late-life field conditions gives significant benefits in operational efficiency and carbon reduction. But changing the compressor wheels and increasing shaft speeds also introduces a risk in terms of the rotor-dynamic stability of the system. API assessments use deterministic methods to assess the design change, but give less information in terms of the key risks and how to control them. This paper outlines new methods for assessing rotor dynamic risks to compressors during re-wheeling and their value over traditional methods. Methods New methods were developed to extend beyond the API requirements in order to assess and manage the rotor-dynamic risk as part of a peer review process of re-wheeling a compressor train. A combination of sensitivity studies on key parameters and Self Organizing Maps (SOMs - a machine learning technique) was used to identify the factors which present the greatest risk to the re-wheeling, and a Monte Carlo analysis was used to identify the change in risk of rotor-dynamic problems when compared with the existing machine. Results The Monte Carlo analysis used random distributions of factors on key input parameters, and the same factors were applied to the existing and re-wheeled designs. It identified that although the re-wheeled design was nominally more stable than the existing design according to the API analysis, it actually presented a greater risk of instability. This is because the distribution of resulting stability values had a higher mean but a greater spread than the existing machine when subject to uncertainty in input parameters. Since the existing machine is free from dynamics problems, the parameter combinations which resulted in an unstable existing machine could be discounted, but the resulting subset of factors when applied to the re-wheeled design still gave some unstable cases. Therefore, the fact that the existing machine is free from dynamics problems does not in itself discount the possibility of problems following the re-wheel. SOMs were used to identify the components which posed the greatest risk to the re-wheeled design. This highlighted that low stiffness in two particular bearings along the high speed shaft would pose the greatest risk to shaft stability, meaning that close attention can be paid by the operators and OEMs to this to manage the risks as the re-wheel progresses. Novel Information This work shows that probabilistic and machine learning techniques have significant value in managing risks during compressor re-wheeling, highlighting risks which would not be identified using standard deterministic methods and focusing attention on the aspects which are most important to manage them.
- Published
- 2021
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- View/download PDF
25. Soil structure response to field traffic:Effects of traction and repeated wheeling
- Author
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Lars J. Munkholm, Mathieu Lamandé, Ole Green, Søren Kirkegaard Nielsen, L. ten Damme, and Per Schjønning
- Subjects
Tractor ,business.product_category ,driven and towed tyres ,medicine.medical_treatment ,Soil Science ,Drawbar pull ,Traction (orthopedics) ,soil functions ,Wheeling ,Soil compaction (agriculture) ,Soil structure ,Soil water ,pore organisation ,medicine ,Environmental science ,Soil horizon ,Geotechnical engineering ,penetration resistance ,business ,Agronomy and Crop Science ,Soil compaction ,Earth-Surface Processes - Abstract
Soil compaction caused by the use of heavy agriculture machinery in non-optimal soil conditions hampers crucial soil functions. Tyre inflation pressure and wheel load are well-known key drivers of compaction. The effects of traction and repeated wheeling are, however, not yet fully understood but may be of critical importance. We aimed to quantify the effects of traction and repeated wheeling on some soil structural properties independently in a compaction experiment conducted on a sandy loam at a soil water content near field capacity, using a tractor-trailer combination at two loads. The trailer was used in ‘standard’ and ‘offset’ steering modes, the latter referring to the mode in which measurements could be taken for the pass of a single towed and thereby passive trailer wheel (with one, two, three and six wheel passes). Penetration resistance was measured to 0.71 m depth and 100-cm 3 soil cores were collected around 0.16 m depth for structural property measurements. In the offset steering mode, the measurements were made in the tractor tracks to investigate the effect of traction and in the trailer's wheel track to investigate the effect of repeated wheeling (at 6.0 Mg static wheel load). The measurements were also collected for the standard steering configuration with the high towed load and from reference plots. Measurements on the soil cores comprised bulk density, porosity, and air permeability. We found a clear effect of traction on deformation of some soil structural properties, with no significant effects of the low drawbar pull but with substantial effects of the high drawbar pull. Reductions in air permeability and specific permeability were significant (89 % and 83 %, respectively) and indicated a densification and homogenisation of the soil. The effect of repeated wheeling was gradual and reasonably well explained by a linear fit to the number of wheel passes. After six passes with the passive wheel caused some soil structural properties to differ significantly from the reference soil, and resulted in approximately similar levels of bulk density, porosity, air permeability and specific permeability as the tractor with high drawbar pull. Still, the deformation was stronger for the single pass of the tractor with the high drawbar pull than for six repeated wheeling of the passive trailer wheel. These results highlight the substantial effect of traction on soil compaction. Yet, the mechanisms causing this deformation remain speculative until the propagation of horizontal stress through the soil profile is better understood.
- Published
- 2021
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- View/download PDF
26. Available Transfer Capability Determination for the Electricity Market using Cuckoo Search Algorithm
- Author
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Thanh Long Duong, T. Kang, N. A. Nguyen, and Thuan Thanh Nguyen
- Subjects
Electric power system ,Computer science ,Profit margin ,Effective method ,Electricity market ,Cuckoo search ,Algorithm ,Wheeling ,Energy (signal processing) ,Power (physics) - Abstract
In the electricity market, power producers and customers share a common transmission network for wheeling power from generation to consumption points. All parties in this open access environment may try to produce energy from cheaper sources for greater profit margin, which may lead to transmission congestion, which could lead to violation of voltage and thermal limits, threatening the system security. To solve this, available transfer capability (ATC) must be accurately estimated and optimally utilized. Thus, accurate determination of ATC to ensure system security while serving power transactions is an open and trending research topic. Many optimization approaches to deal with the problem have been proposed. In this paper, Cuckoo Search Algorithm (CSA) is applied for determining ATC problem between the buses in deregulated power systems without violating system constraints such as thermal, voltage constraints. The suggested methodology is tested on IEEE 14 and IEEE 24-bus for normal and contingency cases. The simulation results are compared with the corresponding results of EP, PSO, and GWO and show that the CSA is an effective method for determining ATC.
- Published
- 2020
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- View/download PDF
27. Stock selection strategy of A-share market based on rotation effect and random forest
- Author
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Zhicen Lin, Jinyun Zhu, Zhongyan Li, Shuai Wang, and Meiru Zhong
- Subjects
random forests ,Rate of return ,a-share market ,Investment strategy ,lcsh:Mathematics ,General Mathematics ,lcsh:QA1-939 ,quantitative investment ,A share ,Wheeling ,Random forest ,the shift of large cap stocks style and small cap stocks style ,Economics ,Econometrics ,Portfolio ,Stock market ,multiple-factor stock selection model ,Stock (geology) - Abstract
Due to the random nature of stock market, it is extremely difficult to capture market trends with traditional subjective analysis. Besides, the modeling and forecasting of quantitative investment strategies are not easy. Based on the research of experts and scholars at home and abroad and the rotation effect of large and small styles in China’s A-share market, a stock picking strategy combining wheeling effect and random forest is proposed. Firstly, judge the style trend of the A-share market, that is, the relatively strong style in the large and small-sized market. The strategy first judges the trend of the A-share market style, then uses a multi-factor stock selection model through random forest to select stocks among the constituent stocks of the dominant style index, and buys the selected stocks according to the optimal portfolio weights determined by the principle of minimum variance. The empirical results show that the annualized rate of return of the strategy in the eight years from January 1, 2012 to April 1, 2020 is 3.6% higher than that of the single-round strategy, far exceeding the performance of the CSI 300 Index during the same period.
- Published
- 2020
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28. 'Our Prospects Are Mighty Dark … Still I Confide in God': The Ordeal of the Sisters of the Visitation in Antebellum Wheeling
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Joseph G. Mannard
- Subjects
History ,General Medicine ,Religious studies ,Trial by ordeal ,Wheeling - Published
- 2020
- Full Text
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29. Mobile learning in Romania, a failed experience?
- Author
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Emil Stan
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Class (computer programming) ,business.industry ,media_common.quotation_subject ,Trojan horse ,Ignorance ,Public relations ,Wheeling ,Feeling ,Information technology management ,ComputingMilieux_COMPUTERSANDEDUCATION ,General Earth and Planetary Sciences ,Human multitasking ,Sociology ,business ,Superficiality ,General Environmental Science ,media_common - Abstract
Some specialists in education sciences doubt the presence of computer resources in formal education: an almost general feeling that they might represent the Trojan horse wheeling in superficiality, ignorance and lack of discipline (Alessandro Barrico’s barbarians), destroying the ‘serious’ vein of schools, but aren’t there computers in schools? Isn’t there an IT infrastructure widely used in education? When the administration takes over, they make a special room, and they put the computers in that room and they have a computer period with a computer teacher. Our study starts from the hypothesis that the usage of mobile learning in class will intensify learning; starting from this idea, we planned to analyse how much the teachers from a specific region of Romania have at their disposal, the resources and competencies needed for mobile learning and in what measure they are really using those resources and competencies in a systematic manner in the educational. Keywords: Mobile learning, multitasking, net generation, school teaching
- Published
- 2019
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30. Wheeling and dealing behind closed doors: estimating the causal effect of transparency on policy evaluations using a survey experiment
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David Hilpert and Sebastian Juhl
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Transatlantic Trade and Investment Partnership ,Sociology and Political Science ,Public economics ,media_common.quotation_subject ,05 social sciences ,Transparency (behavior) ,Democracy ,Wheeling ,0506 political science ,Negotiation ,Political science ,0502 economics and business ,Political Science and International Relations ,050602 political science & public administration ,Doors ,media_common.cataloged_instance ,050207 economics ,European union ,Socioeconomic status ,media_common - Abstract
The Transatlantic Trade and Investment Partnership between the European Union and the US is highly technical. Still, the negotiations triggered large-scale protests among citizens with very diverse socioeconomic backgrounds. Why has a complex issue such an enormous mobilizing effect although the economic consequences are either unclear or favorable for the participating economies? We argue that the transparency of negotiations is an important consideration for people evaluating the negotiation outcome. Conducting a survey experiment, we show that non-transparent decision-making decreases citizens' appraisal of the agreementindependentof its outcome: A non-transparent negotiation is, on average, almost 16 percent less likely to find public approval than a transparent but otherwise identical agreement. Our findings have important implications for democratic decision-making.
- Published
- 2019
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31. Rail Week.
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- VAN Sweringen Railroad Co., BAKER, Newton Diehl, 1871-1937, MARSHALL, John D.
- Published
- 1930
32. A Hub-and-Spoke approach to Optimizing Energy Wheeling of Renewable Resources
- Author
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Srijib Mukherjee
- Subjects
Distribution board ,Operations research ,Computer science ,business.industry ,Greenhouse gas ,Fossil fuel ,Energy market ,business ,Grid ,Wheeling ,Renewable resource ,Renewable energy - Abstract
The deployment of zero-carbon renewable energy sources is mandated by the US Department of Energy (US DOE) to increase significantly to support the goal of net-zero greenhouse gas emissions by 2050. This paper proposes a deterministic approach to how networked (interconnected grid) points of receipt to points of delivery can be optimized for wheeling zero- or low-carbon renewable energy resources to high-demand destination load centers while minimizing energy cost with a hub-and-spoke approach. A hub-and-spoke approach routes “traffic” through a central point. The aapproach was set up as a mixed integer approach in which the cost of transporting energy was minimized. This paper leverages the concepts of a hub-and-spoke transportation model with daily energy market clearing prices, available transmission capacity, and firm daily transmission prices in open-access energy markets to define the most cost-effective route to deliver energy to an applicable load center.
- Published
- 2021
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33. Area-level reduction of wheeling loop flows in regional power networks.
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Cvijic, Sanja and Ilic, Marija
- Abstract
This paper introduces a new framework for modeling wheeling loop flows across areas not directly involved in bilateral trades. This framework decomposes each wheeling loop flow into a linear combination of contributions by the individual bilateral trades. It has zooming-in and zooming-out capabilities for modeling the level of details of interest. The zoomed-in network representations neglect interconnections while treating areas fully disconnected from the rest of the network. This feature allows to have distributed algorithms with completely decentralized decision making. In this framework, we formulate distributed algorithms for wheeling loop flow reduction which do not require individual areas to reveal their internal generation and load. Loop flow minimization is achieved by rescheduling generation within areas directly involved in bilateral trades. Since this rescheduling leads to a more expensive economic dispatch, we define a new Optimal Power Flow (OPF) problem that accounts for wheeling charges and generation cost. Simulation results are illustrated on the IEEE 14-bus system and the RTS 96-bus system. [ABSTRACT FROM PUBLISHER]
- Published
- 2012
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34. The interaction between wheelchair configuration and wheeling performance in wheelchair tennis: a narrative review
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Lucas H V van der Woude, Riemer J K Vegter, Thomas Rietveld, and Sonja de Groot
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medicine.medical_specialty ,Computer science ,0206 medical engineering ,Sports wheelchair ,Wheelchair mobility ,Physical Therapy, Sports Therapy and Rehabilitation ,030229 sport sciences ,02 engineering and technology ,020601 biomedical engineering ,Wheeling ,Wheelchair propulsion ,03 medical and health sciences ,0302 clinical medicine ,Wheelchair ,Physical medicine and rehabilitation ,Racket ,medicine ,Orthopedics and Sports Medicine ,Narrative review ,computer ,computer.programming_language - Abstract
The number of wheelchair tennis players is rising internationally, yet from a scientific perspective little is known about wheelchair tennis performance. Wheelchair tennis is more complex compared to other wheelchair court sports, due to the wheelchair/racket interaction. The purpose of this narrative review was to gain insight into the influence of wheelchair configuration, i.e., the individual set-up of a wheelchair, on wheelchair tennis performance, more specifically on wheelchair mobility performance and propulsion technique. Wheelchair propulsion while holding a racket has had little attention in both the wheelchair mobility performance and wheelchair propulsion technique area. It is shown that the propulsion technique and wheelchair mobility performance are negatively affected by the racket. Based on the current literature, the influence of wheelchair configuration on wheeling performance in wheelchair tennis can mainly be described from a broader wheelchair court sport perspective, due to the lack of specific publications about wheelchair tennis. In the future more research should be conducted on wheeling performance and wheelchair configuration in wheelchair tennis, to attain a more proper scientific foundation for optimising wheelchair tennis performance.
- Published
- 2021
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35. Barriers to and facilitators of active travel from the youth perspective: A qualitative meta-synthesis.
- Author
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Buttazzoni A, Nelson Ferguson K, and Gilliland J
- Abstract
Competing Interests: None.
- Published
- 2023
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36. “Live on the Hills and Work in the City”: Rise and Fall of Renaissance in Pittsburgh’s Regional Hinterland.
- Author
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Dieterich-Ward, Allen
- Subjects
- *
URBAN renewal , *REGIONALISM , *SHOPPING malls , *TWENTIETH century , *HISTORY - Abstract
The article addresses the roles of the Pittsburgh, Pennsylvania organizations Allegheny Conference on Community Development and Pittsburgh Regional Planning Association in the Pittsburgh region. The article focuses on the impact of the Urban Redevelopment Authority of Pittsburgh (URAP) on the Wheeling, West Virginia Urban Renewal Authority of Wheeling (URAW) through the organization Wheeling Area Conference on Community Development. The construction of the Fort Henry Mall in Wheeling is noted.
- Published
- 2015
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37. Road Safety for School Zones in Medium-Sized Cities
- Author
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George Kollaros, Ioannis Karamanlis, Elias Papastavrinidis, Antonia Athanasopoulou, and Vasiliki Kollarou
- Subjects
Travel time ,Plan (drawing) ,Business ,Marketing ,Social utility ,Urban environment ,Wheeling ,Term (time) - Abstract
Schools are social utility units where many people are gathered every day. The best for such organizations is to develop in campuses. However, in the urban environment of mid-sized cities, this is very rarely accomplished. School travel systematically addresses barriers for walking to school. The term “school travel planning” could be thought as a community-based model for implementing active school travel conditions. Students, parents and teachers could leave their cars at home and encouraged to increase walking, cycling, use of buses and carpooling. Also, school related trip times can be differentiated by for example picking up children later. Finally, it’s a great help for taking different route to avoid congested roads. Its primary goal could cost-effectiveness of the way to get more kids walking and wheeling to school. Xanthi is a medium-sized city in Greece with school units scattered in various areas. Most parents move kids to school by car, because they believe that pupils, on their own, cannot circulate safely. That creates a need for the establishment of safe routes that will encourage pupils to use methods and means of alternative transport to schools. This research includes two sections about the city of Xanthi: a) an analysis of the school’s educational, building, urban and traffic data, identifying road safety problems, and b) proposals for specific projects and practices that can improve the conditions and contribute to the sustainable operation of the school. The development of a school travel plan is expected to produce long-term benefits for the city of Xanthi.
- Published
- 2020
- Full Text
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38. Decades of Sustainability
- Author
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Lori Kudlak, Jackie Shia, Laura Ondeck, and Charles A. Wood
- Subjects
Sustained delivery ,Medical education ,media_common.quotation_subject ,Payment ,Article ,Wheeling ,Political science ,Sustainability ,ComputingMilieux_COMPUTERSANDEDUCATION ,Center (algebra and category theory) ,Role playing ,Curriculum ,Learning center ,media_common - Abstract
Since 1998, educators at Wheeling Jesuit University’s Challenger Learning Center and Center for Educational Technologies have created realistic live simulations of science and medical emergencies in which students act as astronauts, scientists or doctors to solve STEM problems such as diagnosing diseases, stopping epidemics, picking a safe spacecraft landing spot, and rescuing stranded astronauts. These 90 to 120-minute simulations, e-Missions, are video-conferenced into classrooms, with companion websites providing pre-mission preparation, supplemental resources and teacher tutorials. e-Missions have been used more than 11,000 times at schools in 50 states and 22 nations. More than 310,000 elementary, middle and high school students have role-played STEM experts, and 10,000 teachers were trained to use technology and problem-based learning. Shorter live missions, e-Labs, were created to demonstrate science topics in 3–9 grade classrooms, and e-Labs Jr do the same for K-3. The simulations and e-Labs are developed with funding from agencies, foundations and corporations, and are maintained through payments by schools of $400 to $550 for each e-Mission, and $200 for e-Labs, often year after year as culminating events for relevant curricula. More than $5 million dollars have been earned over the last 20 years, supporting the sustained delivery of these innovative STEM experiences, and software and hardware updates. Evaluations have identified positive changes in e-Mission student attitudes and perceptions toward science and science careers.
- Published
- 2020
- Full Text
- View/download PDF
39. Economic Power Wheeling Using MW-MILE Method Through Gravitational Search Algorithm
- Author
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Pratul Arvind, Jayendra Kumar, Kapil Yadav, Kaushik Paul, and Anumeha
- Subjects
Mathematical optimization ,Electric power system ,Distribution board ,Computer science ,Particle swarm optimization ,Electric power industry ,Vertical integration ,Economic power ,Wheeling ,Power (physics) - Abstract
The deregulation has brought many vital fundamental alterations in the electric power industry. Previously the vertically integrated structure of power system providing the three services generation, transmission, and distribution by a single party. After deregulation, the three service sectors may be operated (provided) by different companies or parties. As such the power can be generated by a company, it could be sold to any other company for distribution at load centers and it may be transmitted by a third party from the generation point of a selling point (load center/buyer), i.e., power wheeling from the generation point to the distribution point (buyer). In this paper, it is proposed to consider the economic power wheeling from the generation point to the distribution point through Gravitational Search Algorithm (GSA) based on the concept of MW-Mile method under two operating conditions with and without transmission line power limit. The method has been applied to a four-grid power system. The result of GSA method is compared with the result obtained by Particle Swarm Optimization (PSO) method. It has been shown that the computational time of GSA is lower than that of PSO which makes the performance of GSA superior than PSO for the proposed approach..
- Published
- 2020
- Full Text
- View/download PDF
40. Reserve Cost Allocation on Wheeling Using Tracing Method
- Author
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Sasongko Pramono Hadi, Sarjiya Sarjiya, and Yusuf Susilo Wijoyo
- Subjects
Service (business) ,Cost allocation ,Operations research ,business.industry ,Computer science ,020209 energy ,Reliability (computer networking) ,020208 electrical & electronic engineering ,02 engineering and technology ,Tracing ,Wheeling ,Renewable energy ,Backup ,0202 electrical engineering, electronic engineering, information engineering ,Production (economics) ,business - Abstract
Renewable energy has site-specific characteristics and uncertainty in its production. The location of large-scale renewable energy generators, which are generally far from the load location, requires the construction of a transmission network which is relatively difficult to build. Fluctuating production causes the need for backup supplies. These site-specific characteristics and uncertainty problems are opportunities for utility to provide wheeling and reserve services. This reserve service creates additional costs for system operation that must be added to wheeling costs as a component of the reserve cost. The research was conducted on a modified IEEE 30 bus system. The impact of not producing wheeling generators on utility operating costs was observed with optimal power flow. The impact obtained is then allocated to the wheeling entity using the tracing method, which in this study consists of two entities. The calculation results show an increase in utility operating costs by 115.13 $/hr when the wheeling generator is not producing. The first wheeling entity bears costs of 23.20 $/hr and the second wheeling entity bears 91.93 $/hr.
- Published
- 2020
- Full Text
- View/download PDF
41. An Intelligent Electronic Fuse (iFuse) to Enable Short-Circuit Fault-Tolerant Operation of Power Electronic Converters
- Author
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Alber Filba-Martinez, Josep Bordonau, Adria Luque, Salvador Alepuz, and Sergio Busquets-Monge
- Subjects
Short circuit fault ,business.industry ,Computer science ,Electrical engineering ,Redundancy (engineering) ,Converter circuit ,Fault tolerance ,Converters ,business ,Network topology ,Short circuit ,Wheeling - Abstract
The present paper proposes a novel device defined as an intelligent electronic fuse (iFuse) meant to be connected in series with any current-bidirectional voltage-unidirectional active switch present in a given converter. The iFuse duty is to isolate its series- associated switch from the rest of the converter circuit immediately after detecting that said switch has failed in short circuit. Nonetheless, it maintains the reverse (free- wheeling) current path originally offered by the failed switch. The failure detection is performed when the failed switch causes a shoot-through event. Therefore, the iFuse is designed to be able to block the elevated current occurring in such event. The iFuse allows increasing the fault-tolerant capability and the reliability of power converters where such qualities are hindered by switch short-circuit failures, as in converters featuring parallelized switches, neutral-point-clamped multilevel topologies, or redundant legs. The feasibility of the iFuse device is verified through experimental tests, proving that the device is able to detect the failure of its associated switch and isolate it from the rest of the converter circuit in 6 μs, while stopping short-circuit currents of up to 1 kA without incurring in harmful di/dt values.
- Published
- 2020
- Full Text
- View/download PDF
42. Wheeling charge evaluation by using proposed MW-mile method considering transmission losses and load power factor variation
- Author
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Niranjan Kumar, Ramanaiah Upputuri, and Shaik Riyaz
- Subjects
Electric utility ,symbols.namesake ,Transmission (telecommunications) ,Transmission line ,Computer science ,Control theory ,Transmission loss ,Reliability (computer networking) ,symbols ,Power factor ,Newton's method ,Wheeling - Abstract
Today’s electric utility industry is drastically changing due to power system restructuring. The main feature of this power system restructuring is to create a competition among the market players. It is necessary to develop a proper pricing strategy to maintain reliability and secure operation. It is a key and challenging task to allocate the charges for wheeling participants accurately. One of the pricing method widely used in India is MW- mile method for wheeling charge evaluation. This method is based on impact of power flow in a network and considers actual usage of the transmission line. There are three power flow approaches of MW-mile method namely absolute power flow, reverse power flow, dominant power flow. This method does not consider the impact of transmission loss as well as power factor variation of recipient load while evaluating the wheeling charges for the corresponding three power flow approaches. This paper compares the three power flow approaches with inclusion of transmission losses along with fluctuating power factor. The recipient should necessarily get benefit for operating their load at improved power factor. It motivate the recipient to operate their load with opitimal power factor. It also make sure that recipient should get penalty for operating the load at poor power factor. To get this accurate wheeling charge, this paper include the impact of transmission loss of line associated with power factor variation term which is set by the regulator. Newton Raphson algorithm is preferred to evaluate the line flows and line losses of the IEEE-30 bus system and corresponding wheeling charges are evaluated by using MW-mile method for all the three power flow approaches after inclusion of impact power loss as well as correction term of power factor.
- Published
- 2020
- Full Text
- View/download PDF
43. Credit rating based real-time energy trading in microgrids
- Author
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Xiaoyan Zhang, Shanying Zhu, Xinping Guan, Jianping He, and Bo Yang
- Subjects
Balanced scorecard ,Sequential game ,020209 energy ,Mechanical Engineering ,02 engineering and technology ,Building and Construction ,Management, Monitoring, Policy and Law ,Profit (economics) ,Wheeling ,Microeconomics ,Credit rating ,General Energy ,Trustworthiness ,020401 chemical engineering ,Best response ,Energy trading ,0202 electrical engineering, electronic engineering, information engineering ,Business ,0204 chemical engineering - Abstract
In this paper, we investigate the problem of credit rating management in energy trading among microgrids subject to transmission losses and wheeling cost. The main concern is how to constrain the default behaviors of retailers to enable all the consumers and retailers to be actively involved in the energy trading. By endowing retailers as leaders and consumers as followers, we establish a multi-leader multi-follower dynamic game model and propose a scorecard model based on logistic regression to evaluate retailers’ credit ratings. The concept of trust degree is then introduced for all the retailers as a punitive measure to relate their credit ratings with the reduction in the profit. With such a strategy, we can theoretically show that a unique equilibrium exists for the dynamic game model. Moreover, a best response algorithm is proposed to make the consumers and retailers achieve the equilibrium iteratively. Numerical simulations are provided to demonstrate the effectiveness and efficiency of the proposed method. It is found that default behaviors of selfish retailers can be greatly constrained with only a slight degradation of the interests of other participants, thereby promoting the establishment of a trustworthy trading market. We also discuss the influence level of transmission losses on trading behaviors of retailers and consumers.
- Published
- 2019
- Full Text
- View/download PDF
44. Wheeling out the big guns
- Author
-
Jane Coles
- Subjects
Commerce ,Business ,Wheeling - Published
- 2020
- Full Text
- View/download PDF
45. STUDI POWER WHEELING DIKAWASAN INDUSTRI JABABEKA
- Author
-
Redaksi Tim Jurnal
- Subjects
Transmission (telecommunications) ,Third party ,business.industry ,Industrial area ,Transmission system ,Electric power ,Electricity ,Telecommunications ,business ,Wheeling ,Power (physics) - Abstract
Electricity Jababeka industrialarea is provided by PT Bekasi Power through 150 kV PLN's own transmission with Power Wheeling concept that is the joint utilization of transmission system which has a few definitions, for example, the utilization of transmission or distribution system to transmit electric power from existing entities and to different entities.Or sending electrical power from the seller to the buyer through a system claimed by third party. In the concept of wheeling, the fees charged for services provide and bear the lossesdue to the utilization of ipower transmission networks in this study will examine the concept of appropriate power wheeling for Applied in Jababeka industrial area
- Published
- 2018
- Full Text
- View/download PDF
46. ‘So nobly struggling for their manhood’: masculinity and violence among steelworkers in the wheeling district, 1880–1910
- Author
-
Lou Martin
- Subjects
Organizational Behavior and Human Resource Management ,History ,Emerging technologies ,Political science ,Political economy ,Masculinity ,media_common.quotation_subject ,Control (management) ,Threatened species ,Production (economics) ,Wheeling ,media_common - Abstract
Between 1880 and 1910, new technologies and managerial schemes undermined skilled steelworkers’ ability to control production and demand high wages, which also threatened their sense of man...
- Published
- 2018
- Full Text
- View/download PDF
47. Seasonal Patterns of Community Participation and Mobility of Wheelchair Users Over an Entire Year
- Author
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Jaimie F. Borisoff, Franco H. N. Chan, and Jacquie Ripat
- Subjects
Adult ,Male ,030506 rehabilitation ,Adolescent ,Community participation ,Physical Therapy, Sports Therapy and Rehabilitation ,03 medical and health sciences ,0302 clinical medicine ,Wheelchair ,Activities of Daily Living ,Humans ,Disabled Persons ,Longitudinal Studies ,Duration (project management) ,British Columbia ,business.industry ,Rehabilitation ,Community Participation ,Outcome measures ,Middle Aged ,Social engagement ,Urban community ,Wheeling ,Geography ,Wheelchairs ,Public transport ,Geographic Information Systems ,Female ,Seasons ,0305 other medical science ,business ,human activities ,030217 neurology & neurosurgery ,Demography - Abstract
Objective To describe how people who use wheelchairs participate and move at home and in the community over an entire yearlong period, including during times of inclement weather conditions. Design Longitudinal mixed-methods research study. Setting Urban community in Canada. Participants People who use a wheelchair for home and community mobility (N=11). Intervention Not applicable. Main Outcome Measures Use of a global positioning system (GPS) tracker for movement in community (number of trips per day), use of accelerometer for bouts of wheeling mobility (number of bouts per day, speed, distance, and duration), prompted recall interviews to identify supports and barriers to mobility and participation. Results More trips per day were taken during the summer ( P = .03) and on days with no snow and temperatures above 0°C. Participants reliant on public transportation demonstrated more weather-specific changes in their trip patterns. The number of daily bouts of mobility remained similar across seasons; total daily distance wheeled, duration, and speed were higher on summer days, days with no snow, and days with temperatures above 0°C. A higher proportion of outdoor wheeling bouts occurred in summer ( P =.02) and with temperatures above 0°C ( P =.03). Inaccessible public environments were the primary barrier to community mobility and participation; access to social supports and private transportation were the primary supports. Conclusions Objective support is provided for the influence of various seasonal weather conditions on community mobility and participation for people who use a wheelchair. Longitudinal data collection provided a detailed understanding of the patterns of, and influences on, wheelchair mobility and participation within wheelchair users’ own homes and communities.
- Published
- 2018
- Full Text
- View/download PDF
48. Bicycles, ‘Barrows, and Donkeys: Pinning a Tale on the Irish Border
- Author
-
Peter Leary
- Subjects
Cultural Studies ,History ,Wheelbarrow ,Folklore ,Customs duty ,05 social sciences ,0507 social and economic geography ,06 humanities and the arts ,Wheeling ,language.human_language ,060104 history ,Irish ,Anthropology ,language ,Ethnology ,0601 history and archaeology ,050703 geography - Abstract
A popular smuggling story still told in Ireland concerns a man who crossed the border every day, either on a bicycle or wheeling a wheelbarrow, and usually carrying some sort of load; hay, turf, potatoes, or vegetables—goods that were free from customs duty. The suspicious officials subjected the traveller to regular searches but could never catch him out. This article contextualizes that story in the history of the Irish border during the mid twentieth century, and locates it within Irish folklore traditions, before exploring its probable origin in similar tales found outside Ireland.
- Published
- 2018
- Full Text
- View/download PDF
49. Assessment of ramping cost for independent power producers using firefly algorithm and gray wolf optimization
- Author
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K. Kathiravan and N. Rathina Prabha
- Subjects
Mathematical optimization ,Computer Networks and Communications ,Computer science ,Process (computing) ,020206 networking & telecommunications ,02 engineering and technology ,Wheeling ,Power (physics) ,Independent Power Producer ,0202 electrical engineering, electronic engineering, information engineering ,Piecewise ,020201 artificial intelligence & image processing ,Firefly algorithm ,Elasticity (economics) ,Software ,Operating cost - Abstract
In Deregulated Environment, all the independent power producers (IPP) are clustered in nature and they were operated in unison condition to meet out the cluster load demand of various levels of consumers in continuous 24 hours horizon. These IPP were respond and reschedule their clustered operating units with time confine among the reliant conditions like incremental in overall consumer demand, credible contingency and wheeling trades. Amid this process, the ramping cost is acquired during the incidence of any infringement in the secured elastic limit or Ramp rate limits. In this paper, optimal operating cost of the independent power producer is incurred with ramping cost considering stepwise and piecewise slope ramp rate utilizing firefly algorithm and Gray wolf optimization algorithm. Optimal power flow is carried out for the three standard test systems: five, six and ten power producers are having secured elastic limits are taken for computation in Matlab environment.
- Published
- 2018
- Full Text
- View/download PDF
50. Garden center 1959 : "everything in plants, flowers & supplies"
- Author
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John Dieckmann & Sons, Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, John Dieckmann & Sons, and Henry G. Gilbert Nursery and Seed Trade Catalog Collection
- Subjects
Catalogs ,Equipment and supplies ,Gardening ,Nursery stock ,Plants, Ornamental ,Trees ,Varieties ,West Virginia ,Wheeling - Published
- 1959
Catalog
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