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Copyright of Telecommunication Engineering is the property of Telecommunication Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The urban landscape of Kinshasa, Democratic Republic of Congo, faces significant mobility challenges, primarily stemming from rapid urbanization, overpopulation, and outdated infrastructure. These challenges necessitate the exploration of modern smart mobility concepts to improve traffic flow, road safety, and sustainability. This study investigates the potential of solutions such as Mobility-as-a-Service, car sharing, micro-mobility, Vehicle-as-a-Service, and electric vehicles in addressing these challenges. Through a comparative analysis of global implementations, this research identifies key success factors and barriers that inform the feasibility of integrating these solutions into Kinshasa's unique socio-political and infrastructural context. The study presents a conceptual framework, supported by stakeholder analysis, for adapting these solutions locally. A detailed feasibility analysis considers technological, economic, social, environmental, and regulatory factors, offering a clear roadmap for implementation. Drawing on lessons from cities facing similar urban mobility challenges, the paper concludes with actionable recommendations and insights for policymakers and urban planners in Kinshasa. This research not only highlights the viability of smart mobility solutions in Kinshasa but also contributes to the broader discourse on sustainable urban development in rapidly growing cities. While smart mobility studies have largely focused on cities with developed infrastructure, there is a gap in understanding how these solutions apply to cities like Kinshasa with different infrastructural and socio-political contexts. Previous research has often overlooked the challenges of integrating smart mobility in rapidly urbanizing cities with underdeveloped transportation systems and financial constraints. This study fills that gap by offering a feasibility analysis tailored to Kinshasa, assessing smart mobility solutions for its traffic congestion and road safety issues. The smart mobility solutions studied—Mobility-as-a-Service (MaaS), car sharing, electric vehicles (EVs), and micro-mobility—were chosen for their ability to address Kinshasa's key mobility challenges. MaaS reduces reliance on private vehicles, easing congestion and improving public transport. Car sharing offers affordable alternatives to vehicle ownership, essential in a city with income inequality. EVs align with sustainability goals by reducing emissions, while micro-mobility (bikes and e-scooters) improves last-mile connectivity, addressing public transit gaps. These solutions are adaptable to Kinshasa's context and offer scalable, sustainable improvements for urban mobility. [ABSTRACT FROM AUTHOR]

Competing over limited freshwater resources has been a major challenge in sustaining algal oil production. To tackle this issue, municipal wastewater (MWW) is proposed to aid algal oil production but with unknown feasibility. This study aims to investigate the change in algal oil production in response to MWW distribution. Using California as a case, the result shows that the oil production is only 34% of what was proposed in a former study, with 29% to 74% of wastewater being derived to meet 4% to 9% of refinery water demand. There is no substantial increase in oil production beyond a MWW distribution distance longer than 24 km. The analytical framework developed in this study requires minimal data in climate and topographic inputs and can be applied at a global level to identify the most promising areas where algal oil production can be sustained by municipal wastewater. [ABSTRACT FROM AUTHOR]

This research aims to determine the feasibility of product development for colloid-based chemistry teaching materials and problem-based learning integrated with Sasambo ethnochemistry to increase students' chemical literacy. This research is part of a development research procedure that adopts the 4-D model, with stages to define, design, develop, and disseminate. Test the suitability of teaching materials using a questionnaire to test content validity and construct validity. And reliability. The content and construct validity analysis technique uses the V index, while the reliability of teaching materials uses the kappa moment coefficient (K). The content and construct validity analysis results showed that the criteria were very valid, with a V index of 91.36% and 90.7%. The reliability analysis results of teaching materials obtained a kappa moment coefficient (K) of 0.88 with a very high reliability category. Based on the validity and reliability values, it is concluded that colloid-based chemistry teaching materials and problem-based learning Sasambo's integrated ethnochemistry are very suitable for learning.

The sulfur-iodine (S–I or I–S) thermochemical cycle is viewed as a leading method for hydrogen production due to its environmental sustainability, cost-efficiency, and high efficiency. This study critically reviews the advancements in the S–I cycle research made over the last two decades, primarily focusing on basic research aspects such as two-phase separation and side reactions in the Bunsen reaction, along with purification and decomposition processes of H 2 SO 4 and HI. Furthermore, it offers an overview of the unique implementations and simulation results of the S–I cycle put forth by various global institutions. This paper also critically evaluates the feasibility of hydrogen production using the S–I cycle, considering technological, efficiency, economic, environmental, and safety aspects. Although the S–I cycle technology of hydrogen production has seen considerable progress over the years, to fast-track its industrialization, ongoing technical issues such as material compatibility and system matching ought to be addressed strategically. • The progress of basic research on the S–I cycle in the past is reviewed. • The systems platforms that have been established in various countries are introduced in detail. • The simulation work of the S–I cycle system in recent years is summarized. • The comparative analysis of various thermochemical cycles in terms of feasibility, efficiency, economy, environmental impact, and safety is conducted. [ABSTRACT FROM AUTHOR]

Labuan Bajo is being the focus of infrastructure development by the Indonesian government which is one of the super priority tourism destinations. In general, tourist destinations in Labuan Bajo are synonymous with Komodo National Park. This is the background for the developer to invest in the construction of resort X in Labuan Bajo. It is hoped that the resort X area can become an attraction for tourists in Labuan Bajo. In this study, a financial feasibility analysis was carried out to find out whether or not the investment to be made was feasible. The methods used are discounted cash flow (DCF) and Monte Carlo. The X resort construction project is built on an area of 113,396 m2 and is planned to build 263 units of shop houses and 1 unit of 4-star hotels as well as supporting buildings such as back of house (BOH) buildings, public toilets, floating libraries, arrival pavilions. The results of the analysis using the DCF method show a positive NPV value of Rp 87,895,000,000 and an IRR value of 17.66% greater than the Minimum Attractive Rate of Return (MARR) value of 10%, so that the project can be declared feasible to be implemented, as well as the Monte Carlo method which shows a positive NPV value of Rp 35,423,000,000 and an IRR value of 12.82% greater than the MARR value. Therefore, based on the results of the analysis of these two methods, the resort X project in Labuan Bajo can be declared feasible to be implemented. [ABSTRACT FROM AUTHOR]

This research work focuses on the recycling of gypsum, a key component of drywall panels commonly used in construction. It proposes this practice as a technically and economically viable strategy that also aligns with the circular economy model. In this context, waste loses its status as refuse and is transformed back into raw material. A technical feasibility analysis was conducted based on a sample extracted from a specific project, which was subjected to characterization tests and mechanical behavior assessments in both laboratory and real construction conditions. Additionally, an economic feasibility analysis was performed by comparing the budgets of the same project in two scenarios: the traditional plastering process and the use of recycled gypsum. This analysis highlighted the fiscal and legal benefits that adopting the circular model could offer to stakeholders in the construction industry. This study began with a market analysis to determine the availability of recyclable material and to assess the multiple benefits that its reuse can provide. Based on the characterization of the material obtained from the construction site and the mechanical tests conducted, the economic advantages were evaluated for contractors as well as for the potential establishment of companies focused on gypsum recycling. All of this analysis was framed within the context of sustainability, emphasizing the positive environmental impacts of this practice, as well as the development of a strategy that serves as a valuable proposal for the construction sector. This work concludes that recycling gypsum in construction projects represents a technically, environmentally, and economically sustainable alternative that can positively transform the industry. [ABSTRACT FROM AUTHOR]

This research germinates from the statement that cities need to solve the impacts caused by freight transport to improve their sustainability by implementing a set of city logistic measures. Urban freight distribution through environmentally friendly vehicle measures is one of the main sustainable actions being implemented worldwide, with a significant potential to reduce the congestion and pollution levels according to the assessment performed around the world. In this context, this paper aims to explore the use of railways for urban freight transport and then focuses on the potential of shifting from a road to railway system, which uses an advanced demand modelling framework specified and calibrated according to the results of surveys carried out in the study area. Subsequently, the potential benefits of introducing this urban freight transport through the metro system in Rome (Italy) are investigated, showing significant positive effects, both in terms of operational and external costs. [ABSTRACT FROM AUTHOR]

Copyright of Agribusiness Forum / Forum Agribisnis is the property of IPB University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The environmental geological problems such as ground subsidence are serious in Panxie mining area due to repeated mining of multiple coal seams. It is beneficial to release coal resources and reduce the harm of ground subsidence to study the technology of reducing subsidence by separated layer grouting, which is of great significance to the green and low-carbon development of high-diving mining area. 8 pairs of production mines in Panxie mining area were taken as the research object, and the selection principle of grouting face under special conditions was established according to the conditions of coal mine hydrogeology, mining technology and excavation engineering. Using 3DEC software, the grouting effect of 13-1 coal in 1616(3) face was predicted under the conditions of no grouting and different injection-production ratio after mining. Finally, the feasibility of reducing subsidence by separated layer grouting in Huainan mining area under special conditions was analyzed. The results show these as follow. The selection results of 110 working faces in the study area show that 6 working faces meet the grouting conditions, and the separated layer grouting technology is feasible in Panxie mining area. The results of model prediction show that the subsidence curve is symmetrical in the center, and the maximum value of surface subsidence is located in the middle of goaf. With the advance of the working face, the surface subsidence increases, and the position of the maximum value of the subsidence curve moves towards the advancing direction of the working face. ③When the injection-production ratio is more than 60%, the maximum surface settlement decreases from 2 000 mm to less than 400 mm, and more than 80%, indicating that grouting can effectively alleviate surface settlement. [ABSTRACT FROM AUTHOR]

During the long-term operation of high-speed railway in our country, affected by various factors such as surrounding environment changes and human engineering activities, large lateral deviation occurs in some line bridge sections, which seriously affects the normal and safe operation of the train and needs to be rectified urgently. Based on the analysis of the principle of bridge rectification by high pressure jet grouting, the theoretical calculation model of bridge rectification is established, and the differential equations of pile deflection, rotation angle, bending moment and shear force under the high pressure jet grouting rectification mode and the analytical formula of pier top displacement are deduced based on the elastic foundation beam theory. Then,by comparing the calculated displacement at the top of the pier with the actual offset of the line,the feasibility of high pressure jet grouting technology for bridge rectification is analyzed, and the rectification effect is verified by typical engineering cases on site. Research shows that the top displacement of pier is related to foundation coefficient and excess pore water pressure generated by high pressure jet grouting; when foundation coefficient and excess pore water pressure take 1 MPa/ m and 80.3 kPa respectively,the top theoretical calculated displacement of pier is 81.8 mm,which is much larger than the actual deviation of ballastless track line of common high speed railway;In the bridge rectification project of a high speed railway Songjiang Grand Bridge,the displacement at the top of the pier calculated by the average value of the measured excess pore water pressure 30.4 kPa 6. 4~31. 0 mm,which is also greater than the maximum deviation 18.2 mm of the line, indicating that the high pressure jet grouting technology is feasible for bridge rectification theoretically;After rectification construction,the bridge and track structure are stable,the line alignment is smooth,and there is no abnormality in the normal speed operation for many years. The theory and practice have proved that the high pressure jet grouting method is a practical and feasible technical measure for bridge rectification. [ABSTRACT FROM AUTHOR]

Present paper shows the different types of tensor product model based linear matrix inequality controller design and feasibility analysis of two degrees of freedom aeroelastic wing section model. The tensor product models are based on reducing or removing the nonlinear behavior of the system and weighting functions. The linear matrix inequality based method results globally asymptotically stable system. The goal of the paper is to examine that selecting and varying the transformation space influences the feasibility of the linear matrix inequality based controller. The paper gives a comparison between the different tensor product models in terms of controller performance. The linear matrix inequality gives feasible solution for the controller design if the transformation space is selected adequately. [ABSTRACT FROM AUTHOR]

To foster resilient energy transition systems, the deployment of renewable energy sources is potentially helpful in the acceleration towards sustainable, reliable, and diversified solutions. In this feasibility study, aims to pursuit the best optimal solution for renewable energy resources, integrated into the local university's energy mix, to meet the electrical load demand of 8500 kWhr/day and a peak load of 815 kW. A model of a hybrid grid-connected renewable energy (PV/Biomass/Hydel/Diesel generator/Grid) system was implemented in HOMER software, to obtain the most efficient and cost-effective hybrid energy generation. The outcomes of the simulation seem more viable based on sensitivity analysis, as the cost of energy (COE) for an energy system with a hybrid combination is 0.13 $/kWh, meanwhile energy price with the grid system is 0.18 $/kWh. According to the HOMER analysis, a hybrid grid-connected PV/biomass/hydro system demonstrates both technological feasibility and economic viability, meanwhile it will also save 1575 tons of CO2 per year. Therefore, this proposed hybrid energy system, a step towards sustainable development, can be applied at institutional levels, especially in developing countries.

This research germinates from the statement that cities need to solve the impacts caused by freight transport to improve their sustainability by implementing a set of city logistic measures. Urban freight distribution through environmentally friendly vehicle measures is one of the main sustainable actions being implemented worldwide, with a significant potential to reduce the congestion and pollution levels according to the assessment performed around the world. In this context, this paper aims to explore the use of railways for urban freight transport and then focuses on the potential of shifting from a road to railway system, which uses an advanced demand modelling framework specified and calibrated according to the results of surveys carried out in the study area. Subsequently, the potential benefits of introducing this urban freight transport through the metro system in Rome (Italy) are investigated, showing significant positive effects, both in terms of operational and external costs.

Fisheries are sector with great potential to meet food needs. Teaching Factory Canning Politeknik Negeri Jember (Polije) is one of the Fish Processing Units (UPI) engaged in canning seasoned sardines. Teaching Factory Canning Polije is a UPI included in the medium-large category. This research aims to determine the processing feasibility of canning teaching factory. Data were collected by interview and checklist analysis referring to the Ministry of Marine Affairs, namely the Decree of the Minister of Marine Affairs and Fisheries No.Kep.01/MEN/2007. The application of basic eligibility requirements is carried out by analyzing whether there is a discrepancy with existing regulations or deviations, which are then synchronized with the value of the eligibility criteria. The production process of Teaching Factory Canning has followed the processing feasibility certification set by KKP No.Kep.01/MEN/2007 with good eligibility criteria. The assessment is based on 6 minor deviations, 7 significant deviations, and 1 serious deviation. In addition, the GAP Analysis of the UPI TEFA Canning Polije Processing Feasibility Certification showed that the basic feasibility had met the basic requirements and 1 general requirement by correcting the deviations found

Optical Wireless Communications (OWCs) are capable of handling large data rates in the Internet of Underwater Things (IoUT) at low latency to be suitable for real-time image and video applications. This paper presents communication link feasibility via link budget to determine the link communication range for three types of line-of-sight link configurations: point-to-point, diffused, and modulating retro-reflector link. The main aim of this paper is to present a more realistic power link budget which is developed to take into account the following: LED Photo Source Lambertian radiation model, Beer-Lambert pass loss model that includes absorption and scattering effects of water types, Spherical wave propagation model, photodetector which is modeled by active area model, transmitter projection optics (PO) gain and receiver collection optics (CO) gain. Moreover, this paper considers the effects of aquatic channels 'scattering and absorption by using intensity modulation direct detection IM-DD OOK, LED and LD–PS based transmitter, and SiPM-PD based receiver. The impact of different underwater environments, transmitter, and receiver parameters will be investigated on the communication link range. Its communication range on the order of tens of meters could be achieved by the three-link configurations. It is concluded from the analysis; that the line-of-sight point-to-point provides more communication range than a diffused line of sight. A diffused line of sight is used when it is required to multicast from a node to several nodes. Modulating retro-reflector provides moderate communication range and it is used when one party has more resources than the other one on the communication link. Medium distances are achieved by up to a hundred meters by placing multiple relay nodes between the source node and the destination node. The communication range is increased as increasing the active physical area of the photodetector and the transmitted power of the photo source. The communication range in both clear sea water and clear ocean water is higher than turbid water which is less since optical water suffers from higher attenuation. By using the multi-hop concept, an extended communication link range can be achieved. [ABSTRACT FROM AUTHOR]

The traditional manual recording of vaccination records in Germany faced challenges during the COVID-19 pandemic, prompting the introduction of a COVID smartphone app with QR codes. However, this solution brought new challenges, emphasizing the need for a centrally managed European digital vaccination record for efficiency and validity. This study assesses the feasibility of using the HL7 FHIR standard in the healthcare industry for implementing a digital vaccination pass management and monitoring system. The system aims to offer convenience and improved efficiency for both patients and healthcare providers while promoting interoperability with other healthcare systems. To this end, we developed a prototype using modern technologies, such as React, Quarkus, and Keycloak. Results indicate potential benefits for patients and healthcare providers, offering access to immunization records, personalized recommendations, and streamlined management. However, integrating nuanced vaccination processes into the standardized FHIR system requires custom extensions, which might hinder interoperability. Manual data entry and the integration of an identity provider present further obstacles in industry scenarios. Despite these challenges, this study suggests that implementing HL7 FHIR can enhance efficiency, data accessibility, and accuracy in the vaccination process, supporting broader digitization efforts in the German healthcare system and beyond. [ABSTRACT FROM AUTHOR]

Copyright of Nuclear Safety is the property of Nuclear & Radiation Safety Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of National University of Defense Technology / Guofang Keji Daxue Xuebao is the property of NUDT Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to realize low-carbon transformation in the energy industry and achieve the "double carbon" goal as scheduled, renewable energy represented by biomass has become increasingly attractive. Biomass gasification is a thermochemical treatment technology, which has seen rapid development in recent years. It is currently the most effective method for high-grade and efficient utilization of biomass energy. In this paper, the key units involved in the entrained flow gasification process, such as pulverization, transportation, and gasification were analyzed, and the feasibility of applying airflow bed technology to biomass gasification was demonstrated. Six typical agricultural and forestry biomasses were used as raw materials. Biomass entrained flow gasification simulation was carried out with the help of the Aspen Plus chemical process simulation software, and the coal and biomass co-gasification and biomass separate gasification processes were characterized. The carbon reduction effect of biomass gasification was analyzed. The results show that when a certain amount of biomass is added into coal, a good gasification performance is retained. With the increase of biomass blending ratio, the specific coal consumption gradually decreases, and the carbon reduction effect is apparent. Compared with traditional fixed bed and fluidized bed gasification, biomass entrained flow gasification has an advantageous calorific value of synthetic gas about 10 MJ/m³. It can be used as a surrogate for natural gas heating, which has economic value in achieving carbon reduction. This study is in line with the dual-carbon policy and also provides a reference for the efficient conversion and utilization of biomass. [ABSTRACT FROM AUTHOR]

Many countries have a variety of offshore and onshore wind turbines that face extreme aging challenges. Issues with harmful vibrations that must be minimized are addressed in this paper. A new method of wind turbine tower vibration control using piezoelectricity and shunt circuits is proposed in this paper. The passive vibration control method is shown to improve the tower's structural performance under various environmental loads, like wind and seismic excitations. To examine the effectiveness of the suggested shunted piezoelectric system, a simple surrogate finite element model of a wind turbine tower is considered, and various investigations at the second eigenfrequency are carried out. An alternative way of modeling the studied structure is considered and the results demonstrate better performance. The advantages of setting up structural damping systems for decreasing tower vibrational loads and boosting their structural stability and resilience against extreme events are highlighted throughout this work. [ABSTRACT FROM AUTHOR]

Based on traditional evaluation indexes, i.e., displacement, volume shrinkage, and equivalent strain, a new safety evaluation system, including the dilatancy safety factor (DSF) of bedded salt rock and failure approach index (FAI), is proposed in this work. Taking the Jianghan gas storage as the engineering background, the feasibility and stability of ultra-large underground gas storages (UGSs) in the Jianghan plain are demonstrated through this evaluation system. A 3D numerical model is implemented based on geological survey results and mechanical parameters of the Jianghan salt district. Subsequently, preferred geometric diameter and operating parameters, including cavern diameter, allowable pressure range, gas production rate, safety pillar width, and operation mode, are determined through a wide range of simulations. Results show that the suitable diameter is 80 m, the allowable pressure range is 16–34 MPa, the reasonable gas production rate is 0.5–0.6 MPa/d; a safe pillar width should be 2–3 times the cavern diameter, and the preferred operating mode should be synchronous injection–production mode. The simulation results, showing a high consistency with the previous research results, indicate the effectiveness and reliability of the proposed evaluation system. This work provides an alternative solution for the safety assessment method and design purposes for the UGSs in bedded salt rock. Highlights: A new safety evaluation system for bedded salt cavern gas storage is proposed. A 3D geomechanical model of Jianghan salt cavern is implemented. The dilatancy boundary curves of bedded salt rock in China are presented. A complete set of operating parameters for Jianghan gas storage are optimized. [ABSTRACT FROM AUTHOR]

Abstract Objective To develop an early economics evaluation (EEE) to assess the cost‐effectiveness of the GS in reducing the RoF and FoF. Methods A cost‐effectiveness analysis (CEA) with a return on investment (RoI) estimation was performed. CEA used the most relevant parameters, such as increased gait speed and decreased FoF, to estimate the reduction in the RoF, the impact on health care resources used and financial implications for the National Health System in the United Kingdom. Outcomes were measured as incremental cost‐effectiveness ratio per quality‐adjusted life years (QALYs) gained based on the reduction of the RoF and FoF. Uncertainties around the main parameters used were evaluated by probabilistic sensitivity analysis. Results The CEA results showed that the GS is a dominant strategy over the standard of care to improve the movements of older persons who have suffered a fall or are afraid of falling (incremental QALYs based on FoF = 0.77 and QALYs based on RoF = 1.07, cost of FoF = ‐£4479.57 and cost of RoF = ‐£2901.79). By implementing the GS, the ROI results suggest that every pound invested in the GS could result in cost savings of £1.85/patient based on the RoF reduction and £11.16/patient based on the FoF reduction. The probability of being cost saving based on the number of iterations were 79.4 percent (based on FoF) and 100 percent (based on RoF). Conclusion The EEE supports the main hypothesis that the GS is an effective intervention to avoid falls and is potentially cost saving.

The sea transportation system that is interconnected and provides value for loading and unloading services at the main port of Tanjung Priuk is already over capacity. The establishment of a dry port in Tangerang Regency is expected to facilitate the flow of export and import goods, streamline logistics costs, and solve the dwelling time problem that occurs. The plan to establish the Tangerang Dry Port requires an analysis of the financial feasibility of the investment. The method used to solve this problem is using the Internal Rate of Return (IRR), Net Present Value (NPV), and Payback Period. This feasibility analysis calculation was carried out during pre-construction and after construction so that these calculations can be used as reference material in every decision-making, especially those related to the finances of Tangerang Dry Port. The feasibility analysis calculation uses 3 (three) scenarios, namely for optimistic conditions the IRR value is 28.8%, for moderate conditions the IRR value is 13.6%, and for pessimistic conditions the IRR value is 7.2%. For optimistic conditions the NPV value is 1,716.7 billion, for moderate conditions the NPV value is 697 billion, for optimistic conditions the NPV value is 255 billion. For optimistic conditions the payback period is 6.87 years, for moderate conditions the payback period is 9.26 years, and for pessimistic conditions the payback period is 11.2 years. From the results above, optimistic, and moderate conditions are the most feasible scenarios for developing the Tangerang Dry Port.

In this paper, the anti-tumor effects of Aconiti Radix were reviewed and summarized, and the clinical feasibility of Aconiti Radix as a potential anti-tumor drug was analyzed, in order to provide a useful reference for the future research and development of new anti-cancer drugs of Aconiti Radix. [ABSTRACT FROM AUTHOR]

This theoretical article aims to delve into the complexities of feasibility analysis for civil engineering projects, highlighting its importance, methodology and key components. For the development of the article, a bibliographic research was assumed in which theoretical methods were used that facilitated the review of the literature using the following procedure: Compile relevant information, critically evaluate the information and synthesize the information in the organization and summary of the findings from the literature reviewed, identifying key concepts and theories; arriving at the following conclusions: Feasibility analysis is a fundamental tool to evaluate the viability of civil works projects, ensuring their success and minimizing risks, it is a dynamic process that must be continually updated throughout the life cycle of the project to reflect changes in conditions and risks. A comprehensive feasibility analysis should consider technical, economic, legal, environmental and social aspects to provide a complete view of the project's viability. Feasibility analysis is an essential tool for evaluating the viability of civil engineering projects. Various methodologies, approaches and tools are available to perform feasibility analysis, and continued research and development is leading to advances in this field. The integration of AI, big data and data analytics, and the focus on sustainability are some of the future trends that will shape feasibility analysis in the coming years. [ABSTRACT FROM AUTHOR]

This paper, taking the preparation and composition analysis of tetraammine copper(II) as an example, explores teaching reforms by incorporating independent design experiments to enhance students' autonomous learning and cultivate their experimental design thinking. Independent design experiments require students to independently consult literature, design experimental plans, analyze the feasibility of the plans, and engage in comprehensive discussions and analyses after experimental exploration. This approach further nurtures students' abilities for independent thinking and synthesis, fostering skills in literature review and experimental plan writing, thereby laying a solid foundation for future scientific research. [ABSTRACT FROM AUTHOR]

Real estate developers typically assess potential projects using feasibility analyses and industry-standard heuristics, which include capital costs, return on costs, and a subjective risk measure. This study explores real estate developers' decision-making practices in selecting hurdle rates and common feasibility analysis techniques, surveying 225 Australian and New Zealand developers. The main findings are that most developers use specific 'go/no-go' hurdle rate mechanisms irrespective of primary real estate type, with the majority using margin on development cost (MDC) or internal rate of return (IRR); the boundaries between traditional speculative development and real estate investment through the use of securitization methods have become blurred; many developers use both quantitative metrics, with qualitative methods and specific structural checks to manage the risks involved; and the two most frequent methods of determining site value prior to acquisition are the residual land value and discounted cash flow methods. Most place a heavy reliance on industry-accepted heuristics and do not have a predetermined process and method for altering or adapting the chosen hurdle rates and benchmarks. This research provides a contribution to property development practice from the Antipodean perspective which until now has been more focused on the UK view, enabling more generalized application internationally. [ABSTRACT FROM AUTHOR]

In transitioning to a carbon‐neutral chemical industry, the intake of fossil feedstocks will have to be reduced by maximizing end‐of‐life product recycling and introducing alternative feedstocks based on renewable carbon. This perspective article analyses the potential of domestically grown and sourced woody biomass for the supply of renewable carbon for chemicals in Europe. The European chemical industry can become a major consumer of woody biomass in a context where burning wood for energy production is viewed as an unsustainable practice. [ABSTRACT FROM AUTHOR]

Though the most plentiful renewable energy, solar energy is not yet being used to its full potential. A growing number of industries are developing photovoltaic technology, which uses solar energy to create electricity. Furthermore, the integration of photovoltaic systems into residential areas in the form of Hybrid PV-hydroelectric generator technology has attracted significant attention. This study is dedicated to a meticulous economic evaluation of this hybrid system, utilizing a simulation methodology facilitated by the Hybrid Optimization Model for Electric Renewable (HOMER). The geographical scope of this simulation is Semarang, the provincial capital of Central Java. The outcomes of this investigation are auspicious, primarily attributed to the meticulous optimization of monthly energy production coupled with minimal maintenance costs and lucrative investment prospects. Through comprehensive simulations, the PV-Hydro generator system has emerged as the most suitable option for Semarang. This determination is founded upon an in-depth comparative analysis of energy output and economic viability. As a result of the feasibility research, the suggested system has an extremely short payback period of 2.41 years, a huge 76% Internal Rate of Return (IRR), and an astounding 55% Return on Investment (ROI). [ABSTRACT FROM AUTHOR]

A pantograph is a key component on the tops of trains that allows them to efficiently tap electricity from power lines and propel them. This study investigates the possibility of using metal matrix composites (MMCs), specifically aluminum MMCs, as a material for making pantograph parts regarding the dynamics of the train's movement and external meteorological conditions. In this study, a computer-aided design (CAD) model is created using PTC Creo design software and moves to detailed finite element analysis (FEA) simulations executed by the ANSYS software suite. These simulations are important in examining how the dynamic performance of pantographs can vary. The incorporation of Al MMC materials into the structure of the pantograph resulted in significant improvements in structural robustness, with equal stress reduced by up to 0.18%. Similarly, aluminum MMC materials reduced the strain energy by 0.063 millijoules. The outcomes not only give a new perspective to the implementation of modern materials but also provide a breakthrough concept to improve efficiency and increase the service life of pantographs. This study marks a significant milestone in the theoretical development of essential train systems, furnishing eminent perspectives toward the tactical development of transportation infrastructure by suggesting new avenues for the smooth incorporation of smart materials in railway transportation, which would contribute to a more sustainable and reliable future. [ABSTRACT FROM AUTHOR]

Objective: To develop an early economics evaluation (EEE) to assess the cost‐effectiveness of the GS in reducing the RoF and FoF. Methods: A cost‐effectiveness analysis (CEA) with a return on investment (RoI) estimation was performed. CEA used the most relevant parameters, such as increased gait speed and decreased FoF, to estimate the reduction in the RoF, the impact on health care resources used and financial implications for the National Health System in the United Kingdom. Outcomes were measured as incremental cost‐effectiveness ratio per quality‐adjusted life years (QALYs) gained based on the reduction of the RoF and FoF. Uncertainties around the main parameters used were evaluated by probabilistic sensitivity analysis. Results: The CEA results showed that the GS is a dominant strategy over the standard of care to improve the movements of older persons who have suffered a fall or are afraid of falling (incremental QALYs based on FoF = 0.77 and QALYs based on RoF = 1.07, cost of FoF = ‐£4479.57 and cost of RoF = ‐£2901.79). By implementing the GS, the ROI results suggest that every pound invested in the GS could result in cost savings of £1.85/patient based on the RoF reduction and £11.16/patient based on the FoF reduction. The probability of being cost saving based on the number of iterations were 79.4 percent (based on FoF) and 100 percent (based on RoF). Conclusion: The EEE supports the main hypothesis that the GS is an effective intervention to avoid falls and is potentially cost saving. [ABSTRACT FROM AUTHOR]

This paper aims to study the required solar panel tilt angle, area, and investment payback period for achieving zero-energy heating in historically significant courtyard-style residential buildings. The retrofitting approach involves positioning solar panels on the main building of the structure using four supports, each located at the corners, elevated from the ground and not in direct contact with the building. This approach does not alter the external envelope structure of the building, thereby preserving the authenticity of the cultural heritage. Using BESI software, we simulated the heating energy demand of the sample building. We integrated a solar heating system within the building and analyzed the optimal solar panel layout area, installation angle, and payback period for achieving zero-energy heating. This allowed the building to meet the zero-energy heating requirements. Taking the Hu Family Courtyard heritage conservation building as an example, we proposed the optimal layout plan for solar energy retrofitting. [ABSTRACT FROM AUTHOR]

Chemical activation was employed to convert algal biochar obtained from hydrothermal carbonization of lipid-extracted algae (LEA) to activated carbon. Potassium hydroxide, previously utilized on cellulosic biomass but not on algal biomass, was employed as activating agent and the impact of the activation conditions, namely temperature, activation time, and amount of activating agent, were investigated. The yield of activated carbon from biochar ranged from 28 % to 52% and decreased as the temperature was raised from 400 to 600 °C, the residence time from 30 to 60 min, and the KOH/biochar mass ratio from 0.25 to 1.0. In contrast, surface area increased by 2.1-fold when the activation temperature was raised to 600 °C and by 1.5-fold when the KOH: biochar ratio was raised to 1.0. Maximum BET surface area of 847 m2/g was achieved at 600 °C after 30 min at a mass ratio of 1:1. The integrated hydrothermal carbonization and activation process of LEA was simulated in Aspen Plus® and the technoeconomic feasibility was assessed based on our experimental data at 1,000 and 10,000 acres of cultivation area. For the latter, net present value analysis determined a minimum selling price of $2,200/ton for algal activated carbon with a financial breakeven achieved in 3.5 years. This is cost-competitive with the current price of commercial fossil-derived activated carbon, which is $1,543-$2,645/ton. Sensitivity analysis showed that the minimum selling price is significantly affected by algal biomass yield during cultivation and is more sensitive to the operating expenses than to the capital investment.