300 results on '"Single axis"'
Search Results
2. Semi-Spherical Solar Oven with Automated Programmed Single Axis Sun Following System
- Author
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Dana Salameh and Salah Abdallah
- Subjects
Materials science ,Optics ,business.industry ,Single axis ,General Engineering ,business - Published
- 2021
3. Design and Development of a Single-Axis Solar Tracking System
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Md. Taslim Mahmud Bhuyain, Riazul Haidar, Sahadat Hossain Sagor, Nayeem Al-Tamzid Bhuiyan, and Robin Kuri
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Solar tracking system ,Computer science ,business.industry ,Single axis ,Development (differential geometry) ,Aerospace engineering ,business - Abstract
With solar tracking, it will become possible to generate more energy since the solar panel can maintain a perpendicular profile to the rays of the sun. Even though the initial cost of setting up the tracking system is considerably high, there are cheaper options that have been proposed over time. This research discuss the design and construction of a prototype for a solar tracking system that has a single axis of freedom. Light Dependent Resistors (LDRs) are used for sunlight detection. The control circuit is based on an ATMega328P microcontroller. It was programmed to detect sunlight via the LDRs before actuating the servo to position the solar panel. The solar panel is positioned where it is able to receive maximum light. As compared to other motors, the servo motors are able to maintain their torque at high speed. They are also more efficient with efficiencies in the range of 80-90%. Servos can supply roughly twice their rated torque for short periods. Through tracking, there will be increased exposure of the panel to the sun, making it have increased power output. The trackers can either be dual or single axis trackers. As a single tracking system is cheaper, less complex, and still achieves the required efficiency, so it was used.
- Published
- 2021
4. Empirical Evaluation of Fixed and Single-Axis Tracking Photovoltaic System: Case of ASHRAE Solar Radiation Modelling for Medina, Saudi Arabia
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Raed L. Alahmdi, Mohanad Abualkhair, Minerals, Dhahran, Saudi Arabia, Abdulrahman Alansari, and Abdulrahman Almoghamisi
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business.industry ,Photovoltaic system ,Single axis ,ASHRAE 90.1 ,Environmental science ,Aerospace engineering ,Radiation ,Tracking (particle physics) ,business - Abstract
The main problem in studying the feasibility of solar systems is the enormous gap between theory and experimental radiation intensity, so to get accurate results there is a need for studying energy production in the site of the system empirically. In this study, the energy production of both fixed PV panel system and the system with single-axis tracking were empirically evaluated in Medina, Saudi Arabia. The two systems had the same 270 Wp PV panel. The fixed system was tilted by 23.5 degrees, and the single-axis tracker was tilted by 26 degrees. Both systems had an azimuth angle of zero degrees. A closedloop three-points controller was used to control the tracker with 120 degrees rotation range. The two systems operated simultaneously in July, and the data were collected for 14 days. The empirical results showed that the tracker increased the generated energy by 48.5% during the testing period. As a comparing method, a modified ASHRAE model was used to estimate the increase in the panel's energy output with and without the single-axis tracker, and RMSE and MBE were calculated. It's been found that the experimental energy generation is 10%, 5% less than the estimation of the modified model for the fixed system and the tracking system, respectively. Finally, based on the analysis, it's been estimated that the singleaxis tracker will increase the generated energy by 22.5% yearly in Medina.
- Published
- 2021
5. Impact of utilizing reflector, single-axis and two-axis sun trackers on the performance of an evacuated tube solar collector
- Author
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Hassan Fathabadi
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Evacuated tube ,Materials science ,Renewable Energy, Sustainability and the Environment ,BitTorrent tracker ,business.industry ,020209 energy ,Reflector (antenna) ,02 engineering and technology ,Solar tracker ,Optics ,020401 chemical engineering ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,0204 chemical engineering ,business - Abstract
In this paper, a novel evacuated tube solar collector (ETSC) is first designed and built. Then, the impact of adding reflector, reflector plus single-axis sun tracker and reflector plus two-axis su...
- Published
- 2020
6. Bringing spacecraft into solar-oriented attitude by the measurements of a single-axis angular-rate sensor and an optical solar sensor
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M. G. Shipov, A. A. Steklova, and A. A. Davydov
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Physics ,solar sensor ,single-axis angular-rate sensor ,Spacecraft ,business.industry ,spacecraft ,attitude control ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,TL1-4050 ,solar-oriented attitude ,General Medicine ,GeneralLiterature_MISCELLANEOUS ,low-thrust liquid rocket engine ,Optics ,Angular rate sensor ,Physics::Space Physics ,angular speed reduction ,Single axis ,ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS ,Astrophysics::Earth and Planetary Astrophysics ,business ,ComputingMethodologies_COMPUTERGRAPHICS ,Motor vehicles. Aeronautics. Astronautics - Abstract
The algorithm of the turn of the spacecraft from an initial arbitrary angular position at an arbitrary angular rate to a solar-oriented attitude is investigated. Minimum essential equipment of the motion control system required for the purpose of ensuring maintenance of solar orientation is defined: a solar sensor, a single-axis angular-rate sensor, low-thrust liquid rocket engines. A solution of the problem of defining the spacecraft angular rate vector by the measurements of the deviation of the optical axis of the solar sensor from the sun vector and the single-axis angular-rate sensor is presented. The conditions under which control action on the rocket engines for the purpose of changing the value of the angular-rate vector for the Sun to get into the field of viewing of the solar sensor or for the spacecraft stabilization are defined. Mathematical modeling of the spacecraft attitude control system with the unknown initial state vector of motion is carried out. The results of mathematical modeling confirmed the efficiency of the proposed algorithm in terms of reducing propellant fuel consumption and high-speed performance. In comparison with the known methods of solving the problem of reducing angular speed (a lengthy process with the use of a magnetic system or a fast process with the use of a three-axis angular-rate sensor and rocket engines) the duration of the process of reducing angular speeds is the same as in normal operation, however, at the same time the problem of bringing spacecraft into the solar oriented attitude is solved.
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- 2020
7. Design of Single-Axis Solar Tracker based on Arduino Uno Microcontroller
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Fitria Hidayanti
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Microcontroller ,Arduino uno ,business.industry ,Computer science ,Single axis ,General Engineering ,business ,Computer hardware ,Solar tracker - Published
- 2020
8. In Vitro Kinematic Analysis of Single Axis Radius Posterior-Substituting Total Knee Arthroplasty
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Yun Peng, Young-Min Kwon, Paul Arauz, Tiffany N. Castillo, and Christian Klemt
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musculoskeletal diseases ,Knee Joint ,Kinematics ,03 medical and health sciences ,0302 clinical medicine ,Cadaver ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Range of Motion, Articular ,Arthroplasty, Replacement, Knee ,Orthodontics ,030222 orthopedics ,Medial collateral ligament ,business.industry ,Biomechanics ,030229 sport sciences ,Radius ,musculoskeletal system ,Biomechanical Phenomena ,medicine.anatomical_structure ,Single axis ,Ligament ,Surgery ,Implant ,business ,Cadaveric spasm ,human activities - Abstract
This is an experimental study. As current posterior-substituting (PS) total knee arthroplasties have been reported to incompletely restore intrinsic joint biomechanics of the healthy knee, the recently designed single axis radius PS knee system was introduced to increase posterior femoral translation and promote ligament isometry. As there is a paucity of data available regarding its ability to replicate healthy knee biomechanics, this study aimed to assess joint and articular contact kinematics as well as ligament isometry of the contemporary single axis radius PS knee system. Implant kinematics were measured from 11 cadaveric knees using an in vitro robotic testing system. In addition, medial collateral ligament (MCL) and lateral collateral ligament (LCL) forces were quantified under simulated functional loads during knee flexion for the contemporary PS knee system. Posterior femoral translation between the intact knee and the single axis radius PS knee system differed significantly (p
- Published
- 2020
9. Anisotropic conductive networks for multidimensional sensing
- Author
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Wei Feng, Qi Zhang, Peng-Cheng Ma, Qingbin Zheng, Jiangxin Wang, Fei Zhang, and Yanwu Zhu
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Computer science ,business.industry ,Process Chemistry and Technology ,02 engineering and technology ,Decoupling (cosmology) ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Mechanics of Materials ,Single axis ,Electronic engineering ,Robot ,General Materials Science ,Electrical and Electronic Engineering ,0210 nano-technology ,Anisotropy ,business ,Electrical conductor ,Wearable technology - Abstract
In the past decade, flexible physical sensors have attracted great attention due to their wide applications in many emerging areas including health-monitoring, human-machine interfaces, smart robots, and entertainment. However, conventional sensors are typically designed to respond to a specific stimulus or a deformation along only one single axis, while directional tracking and accurate monitoring of complex multi-axis stimuli is more critical in practical applications. Multidimensional sensors with distinguishable signals for simultaneous detection of complex postures and movements in multiple directions are highly demanded for the development of wearable electronics. Recently, many efforts have been devoted to the design and fabrication of multidimensional sensors that are capable of distinguishing stimuli from different directions accurately. Benefiting from their unique decoupling mechanisms, anisotropic architectures have been proved to be promising structures for multidimensional sensing. This review summarizes the present state and advances of the design and preparation strategies for fabricating multidimensional sensors based on anisotropic conducting networks. The fabrication strategies of different anisotropic structures, the working mechanism of various types of multidimensional sensing and their corresponding unique applications are presented and discussed. The potential challenges faced by multidimensional sensors are revealed to provide an insightful outlook for the future development.
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- 2021
10. A New Approach in Controlling A Single Axis Solar Tracker Based on Photovoltaic Output
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I Made Sajayasa, Igna Dwijaya Saputra, I Ketut Suryawan, I Made Purbhawa, Igp Mastawan Eka Putra, and Ibk Sugirianta
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Physics ,Optics ,business.industry ,Single axis ,Photovoltaic system ,business ,Solar tracker - Published
- 2021
11. A configurable single axis Si-MEMS Gyro
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M. Zinkstein, M. Mogel, U. Loffelmann, A. Jackle, S. Konig, D. Grolle, Stefan Rombach, J. Pfeiffer, M. Ruf, S. Meier-Meybrunn, S. Stahl, and P. Zeller
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Physics ,business.industry ,Single axis ,Vibrating structure gyroscope ,Optoelectronics ,business - Published
- 2021
12. Single Axis Solar Tracking System
- Author
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Ei Ei Aung
- Subjects
Physics ,Optics ,Solar tracking system ,business.industry ,Single axis ,business - Published
- 2019
13. DESIGN AND DEVELOPMENT OF SINGLE AXIS SOLAR TRACKER OF SMART MONITORING SYSTEM USING IOT
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Kori Veeresha, Dr.N. Lakshmipathy, Swetha S.R, and Vijayalakshmi S
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business.industry ,Computer science ,Single axis ,Monitoring system ,Internet of Things ,business ,Computer hardware ,Solar tracker - Published
- 2019
14. Development of A Single-Axis Solar Tracker in Malaysia
- Author
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Fei Lu Siaw, Suhail Hassan Elyas, and Tzer Hwai Gilbert Thio
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Physics ,Optics ,business.industry ,Single axis ,Development (differential geometry) ,business ,Solar tracker - Abstract
The performance of solar photovoltaic systems can be improved if solar modules are kept perpendicular to the direction of solar radiation. Therefore, an accurate solar tracker system is important to continuously orientate solar modules to be always perpendicular to the solar radiation throughout the day. This paper presents the development and testing of a selfadjusting single-axis solar tracking system using two photovoltaic cells as photosensors. A prototype of the single-axis solar tracking system is built and tested based on continuous tracking method to the sun’s position throughout the day. An Arduino UNO microcontroller, a servo motor, and photovoltaic cells are selected as the components of the prototype. As this is an active tracking system, the orientation of the tracker receiver surface depends on the feedback received from the photosensors. Outdoor tests were carried out under clear skies at Kota Damansara, Malaysia (3.1467512 N, 101.5740615 E). The tracking inaccuracy is less than 5% with the maximum being 4.12%.
- Published
- 2019
15. Mechanisms of Visual Object Recognition in Infancy: Five-Month-Olds Generalize Beyond the Interpolation of Familiar Views
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Clay Mash, Marc H. Bornstein, and Martha E. Arterberry
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Communication ,Visual perception ,genetic structures ,business.industry ,Cognitive neuroscience of visual object recognition ,Object (philosophy) ,Form perception ,Pediatrics, Perinatology and Child Health ,Single axis ,Developmental and Educational Psychology ,Psychology ,Multiple view ,business ,Rotation (mathematics) ,Cognitive psychology ,Interpolation - Abstract
This work examined predictions of the interpolation of familiar views (IFV) account of object recognition performance in 5-month-olds. Infants were familiarized to an object either from a single viewpoint or from multiple viewpoints varying in rotation around a single axis. Object recognition was then tested in both conditions with the same object rotated around a novel axis. Infants in the multiple-views condition recognized the object, whereas infants in the single-view condition provided no evidence for recognition. Under the same 2 familiarization conditions, infants in a 2nd experiment treated as novel an object that differed in only 1 component from the familiar object. Infants' object recognition is enhanced by experience with multiple views, even when that experience is around an orthogonal axis of rotation, and infants are sensitive to even subtle shape differences between components of similar objects. In general, infants' performance does not accord with the predictions of the IFV model of object recognition. These findings motivate the extension of future research and theory beyond the limits of strictly interpolative mechanisms.
- Published
- 2021
16. Design and Comparison of Different Available Model of Prosthetic Knee Joint
- Author
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Manish Chaturvedi and Himakshi Pareta
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musculoskeletal diseases ,Computer science ,business.industry ,Structural engineering ,Kinematics ,Knee Joint ,musculoskeletal system ,Finite element method ,Human anatomy ,Prosthetic knee ,Single axis ,Workbench ,business ,human activities ,Joint (geology) - Abstract
The kinematics of human knee joint mainly includes the all degree of freedom motion of human knee joint. The human knee joint is the most complex structure of human anatomy and thus it also has high risk of failure. This joint may fail due to failure in ligaments, bone or any other component of the knee joint. Thus, the motion can be restored through the application of prosthetic knee joint. By comparing various single axis and polycentric prosthetic knee designs on the basis of maximum stress induced, manoeuvrability, weight and an optimal model could be developed that will not only have lightweight but will also include easy and low-cost manufacturing. Simulation-based finite element analysis was done on a single axis and two polycentric knee prosthetic knee designs using ANSYS WORKBENCH 18.1.
- Published
- 2021
17. Altitude Control of Single Axis Solar Sail through a Gimbal
- Author
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R. Asokan, Thangavel Sanjeeviraja, S. Lakshmi, and R. Santhanakrishnan
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Physics ,business.industry ,Mechanical Engineering ,Physics::Space Physics ,Single axis ,Aerospace Engineering ,Astrophysics::Earth and Planetary Astrophysics ,Solar sail ,Aerospace engineering ,Gimbal ,business ,Altitude control - Abstract
The purpose of designing a spacecraft Altitude and dynamic control models play an important role in an interplanetary space mission. Particular emphasis is controlling spacecraft Altitude by sail tilting and shifting. In addition, investigate an uncertain balance amongst the centre of pressure and centre of mass on a single axis gimbaled control. Implies a method of Monte Carlo is with standing a significant of solar pressure disturbance torque in deep space mission. A flight test experiment drives in a Low Earth Orbit (LEO), hence, authenticate the source of solar sailing is also suggested. Parameters are incorporating to study and demonstrate the various principals and methods involved in altitude control design and dynamic modeling at LEO. Mitigation of disturbance torques was also examined.
- Published
- 2020
18. Develop Test and Implementation of Low Cost DC Power Data Logger
- Author
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Nikolay Karnobatev
- Subjects
business.industry ,Computer science ,Data logger ,Photovoltaic system ,Single axis ,Electrical engineering ,Interval (mathematics) ,business ,Solar energy ,Pulse-width modulation ,Energy (signal processing) ,Power (physics) - Abstract
A low cost DC power data logger was designed. It could log data about generated solar energy from two solar systems. The power was measured indirectly. Calculation of power and energy was made every 255 ms. They were averaged and logged with interval one minute. The data logger was made in order to analyze the operation of different solar systems types: fixed mount vs. single axis, single axis vs. double axis, solar system with PWM vs. system with MPPT controller.
- Published
- 2020
19. Advances in Implantable Microelectrode Array Insertion and Positioning
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Tania M D'Souza, Joseph J. Pancrazio, Nishat Tasnim, David Atkinson, Hamid Marvi, Jit Muthuswamy, and Jai Singh Rajput
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Neuroprosthetics ,business.industry ,Brain ,General Medicine ,Brain surface ,Multielectrode array ,Neuromodulation (medicine) ,Electrodes, Implanted ,03 medical and health sciences ,Microelectrode ,0302 clinical medicine ,Anesthesiology and Pain Medicine ,Neurology ,Single axis ,Medicine ,Humans ,Neurology (clinical) ,business ,Limb loss ,Microelectrodes ,030217 neurology & neurosurgery ,Computer hardware ,Tissue volume - Abstract
Objectives Microelectrode arrays offer a means to probe the functional circuitry of the brain and the promise of cortical neuroprosthesis for individuals suffering from paralysis or limb loss. These devices are typically comprised of one or more shanks incorporating microelectrode sites, where the shanks are positioned by inserting the devices along a straight path that is normal to the brain surface. The lack of consistent long-term chronic recording technology has driven interest in novel probe design and approaches that go beyond the standard insertion approach that is limited to a single velocity or axis. This review offers a description of typical approaches and associated limitations and surveys emergent methods for implantation of microelectrode arrays, in particular those new approaches that leverage embedded microactuators and extend the insertion direction beyond a single axis. Materials and methods This review paper surveys the current technologies that enable probe implantation, repositioning, and the capability to record/stimulate from a tissue volume. A comprehensive literature search was performed using PubMed, Web of Science, and Google Scholar. Results There has been substantial innovation in the development of microscale and embedded technology that enables probe repositioning to maintain quality recordings in the brain. Innovations in material science have resulted in novel strategies for deployable structures that can record from or stimulate a tissue volume. Moreover, new developments involving magnetically steerable catheters and needles offer an alternative approach to "pull" rather than "push" a probe into the tissue. Conclusion We envision the emergence of a new generation of probes and insertion methodologies for neuromodulation applications that enable reliable chronic performance from devices that can be positioned virtually anywhere in the brain.
- Published
- 2020
20. Slope-Aware Backtracking for Single-Axis Trackers
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Mark A. Mikofski and Kevin Anderson
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business.industry ,Backtracking ,Computer science ,BitTorrent tracker ,Single axis ,Computer vision ,Artificial intelligence ,business - Published
- 2020
21. When and Where to Track: A Worldwide Comparison of Single-axis Tracking vs. Fixed Tilt Bifacial Farms
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Md. Sojib Ahmed, Muhammad A. Alam, Nauman Zafar Butt, Muhammed Tahir Patel, Hassan Imran, and M. Ryyan Khan
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Power gain ,business.industry ,020209 energy ,Photovoltaic system ,Tracking system ,02 engineering and technology ,Tracking (particle physics) ,Track (rail transport) ,7. Clean energy ,Automotive engineering ,Tilt (optics) ,020401 chemical engineering ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,0204 chemical engineering ,business ,Cost of electricity by source - Abstract
The quest to increase the energy yield of solar PV farms has led to extensive research on bifacial modules and tracking systems. Previous studies have shown ~12% increase in power for single-axis tracking of standalone bifacial PV modules, but the corresponding gain for bifacial solar farms remains unknown. In this paper, we demonstrate the modeling and physics of single-axis tracking bifacial PV farms that include the essential aspect of mutual shading between the rows of PV panels. Our results show that single-axis tracking bifacial farms outperform fixed mono/bifacial for locations and times with higher direct light fraction. The worldwide maps show a range of yearly power gain from 10-20% for latitudes > 40°. Overall, a judicious deployment of single-axis tracking bifacial solar PV farms would offer immense potential in energy yield maximization and eventual LCOE minimization.
- Published
- 2020
22. Analysis of Photovoltaic Agriculture Model Based on the Single Axis Tracking System
- Author
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Rui Zhang, Lei Ma, Mingxin Wang, and Yaojie Sun
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Coupling problem ,Computer science ,business.industry ,Agriculture ,Single axis ,Photovoltaic system ,Normal growth ,Greenhouse ,Tracking system ,business ,Automotive engineering - Abstract
Due to the shading of PV panels, the normal growth of high-illumination-loving plants can not be met, only low-illumination-loving plants are planted in the greenhouse. Aiming at improving this phenomenon, this paper analyzes the characteristics of light demand of the plants, and reveals the principle of agricultural photovoltaic complementary by using the characteristics of light saturation. On this basis, the paper combines with the technical characteristics of the single axis tracking photovoltaic system, according to the light conditions to optimize the photovoltaic angle, to change the light characteristics of the greenhouse, so as to solve the coupling problem between agriculture and photovoltaic. Finally, this paper gives an optimization analysis by taking a 50kW photovoltaic greenhouse as an application scenario. The result shows that 31% improvement of the comprehensive benefits are achieved, which proves that the method in this paper is feasible.
- Published
- 2020
23. Single axis multipass VIPA spectroscopy (Conference Presentation)
- Author
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Giuliano Scarcelli and Antonio Fiore
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Materials science ,Optics ,business.industry ,Single axis ,Presentation (obstetrics) ,Spectroscopy ,business - Published
- 2020
24. Unique Single-Axis Tracking Planar Waveguide Optical Collector for CSP Modules
- Author
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Bal Mukund Dhar
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Physics ,Planar ,Optics ,business.industry ,Single axis ,Waveguide (acoustics) ,Tracking (particle physics) ,business - Published
- 2020
25. Subtalar Joint Biomechanics
- Author
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Bruce J. Sangeorzan and Adam Sangeorzan
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musculoskeletal diseases ,0301 basic medicine ,030222 orthopedics ,biology ,business.industry ,Biomechanics ,Soft tissue ,Anatomy ,biology.organism_classification ,Gait ,Joint contact ,body regions ,03 medical and health sciences ,Valgus ,0302 clinical medicine ,medicine.anatomical_structure ,Subtalar joint ,Single axis ,Medicine ,Orthopedics and Sports Medicine ,Surgery ,030101 anatomy & morphology ,business ,human activities ,Joint (geology) - Abstract
Subtalar joint biomechanics are primarily driven by the shape of the articulations with contributions from the surrounding soft tissues. The joint motion occurs about a single axis oriented medially and superiorly. Joint contact forces change during different stages of gait and are affected by hindfoot alignment and traumatic alterations to their normal anatomy. A valgus subtalar joint axis is likely a contributing, and perhaps primary, risk factor for progression to adult acquired flat foot. The subtalar joint axis also contributes to the clinical picture of a cavus foot and a special subset of patients with dynamic varus.
- Published
- 2018
26. Multi-Distance Veins Projection Based on Single Axis Camera and Projector System
- Author
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Riyanto Sigit, Agus Gunawan, and I Putu Adi Surya Gunawan
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back-projection ,business.industry ,Computer science ,020208 electrical & electronic engineering ,02 engineering and technology ,veins ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Projector ,law ,lcsh:TA1-2040 ,ultrasonic distance sensor ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Computer vision ,030212 general & internal medicine ,Artificial intelligence ,business ,Projection (set theory) ,lcsh:Engineering (General). Civil engineering (General) - Abstract
Every person has different location of veins, some veins are easily detected because it is visible due to thin tissue, and the other are invisible. This different location of veins causes intravenous access procedures and the procreas of intravenous therapy become longer. Multi-distance vein projections aim to simplify the measurement process where the device and object do not have to be at a certain distance. Some research that has been done especially for real-time vein projection does not conduct how the characteristics of projection at different distances. In this paper, we propose a method for performing multi-distance real-time back-projection by using the intersection between camera and projector. This method equiped with an ultrasonic distance sensor to identify the projection characteristic in any distance. In its implementation, this method is able to project at a distance of 20-40 cm with a maximum projection error of 0.6 mm. The measurement angle tolerance between the object and the device is ±5 degrees with a maximum error of 0.7 mm.
- Published
- 2019
27. Solar tracking systems: Technologies and trackers drive types – A review
- Author
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N.M. Harag, Ahmed M. Yousef, and A.Z. Hafez
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Renewable Energy, Sustainability and the Environment ,Computer science ,business.industry ,BitTorrent tracker ,020209 energy ,Real-time computing ,Tracking system ,02 engineering and technology ,Solar energy ,Tracking (particle physics) ,Solar tracker ,Azimuth ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Dual axis ,business - Abstract
This paper presents a comprehensive review on solar tracking systems and their potentials in solar energy applications. The paper overviews the design parameters, construction, types and drive system techniques covering different usage application. There are two main solar tracking systems types that depending on their movement degrees of freedoms are single axis solar tracking system and dual axis solar tracking system, which are addressed in the recent studies. The solar tracker drive systems encompassed five categories based on the tracking technologies, namely, active tracking, passive tracking, semi-passive tracking, manual tracking, and chronological tracking. The paper described the various designs and components of the tracking systems. There are 42.57% of the studies discussed and presented single axis tracking systems while 41.58% of these studies to the dual axes tracking systems. In the recent research studies, the most common solar tracker drive type was active tracker by 76.42% usage in applications while in the second most impact type is the chronological solar tracker by 7.55%. Furthermore, in the solar tracking techniques, Azimuth and altitude tracking achieved 16.67% in usage, Horizontal tracking by 16.67%, Azimuth tracking by 10%, and polar tracking by 4.44%.
- Published
- 2018
28. Functional range of motion in the metacarpophalangeal joints of the hand measured by single axis electric goniometers
- Author
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Takashi Murai, Shigeharu Uchiyama, Koichi Nakamura, Yoshikazu Ido, Yukihiko Hata, and Hiroyuki Kato
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Adult ,Male ,Radiography ,Thumb ,Metacarpophalangeal Joint ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Reference Values ,Activities of Daily Living ,Task Performance and Analysis ,medicine ,Humans ,Orthopedics and Sports Medicine ,030212 general & internal medicine ,Range of Motion, Articular ,Mathematics ,Orthodontics ,030222 orthopedics ,Reproducibility ,Arthrometry, Articular ,business.industry ,Reproducibility of Results ,Index finger ,Tomosynthesis ,body regions ,Cross-Sectional Studies ,medicine.anatomical_structure ,Goniometer ,Single axis ,Female ,Surgery ,business ,Range of motion - Abstract
Background The functional range of motion (fROM) of the metacarpophalangeal (MCP) joints during the performance of activities of daily living (ADL) has not yet been established. This study aimed to determine the fROM of all five digits and verify the accuracy and reproducibility of dynamic angle measurement using a single-axis electric goniometer (EG) during ADL movements of the hand. Methods This was a cross-sectional study. In EG suitability testing, we first confirmed the angles of a three-dimensional calibration device 10 times, and then compared EG readings with those determined by tomosynthesis images. Next, we determined the fROM of the MCP joints by evaluating all five digits of the dominant hands of 10 healthy adults performing 16 ADL. Intra-rater reproducibility of MCP joint data during task performance was assessed in two healthy adults. Results Static measurements of the triangular object showed variance to be within one degree in 39 of 40 trials. Differences between angles measured by the EG and those depicted by radiograph were a range of plus or minus five degrees in 88 of 96 digits. The fROM values for the thumb and index, middle, ring, and little fingers were −7.5 to 35.3, 10.6 to 67.8, 4.0 to 79.9, 3.0 to 83.9, and 2.9–91.4 degrees of flexion, respectively. Flexion angle in the fROM of the index finger was significantly smaller than those of the ring and little fingers. The flexion and extension angles of the thumb were significantly smaller than those of the four ulnar fingers. The intra-rater correlation coefficients of two participants were high at 0.94 and 0.93, respectively. Conclusions The method adopted in this study exhibited excellent accuracy and reproducibility and was therefore considered suitable for the real-time establishment of fROM flexion-extension angles of the MCP joints for all five digits. Our data are useful as a target arc of motion in the treatment of MCP joint disease or injury.
- Published
- 2018
29. OBOUR INSTITUTE SOLAR PANEL MICROCONTROLLER BASED SINGLE AXIS SUN TRACKING SYSTEM
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O. Monem
- Subjects
Microcontroller ,business.industry ,Computer science ,Sun tracking ,Single axis ,Electrical engineering ,business - Published
- 2018
30. Single Axis Solar Tracking with LDR
- Author
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Shivanshu Tiwari
- Subjects
Physics ,Optics ,business.industry ,Single axis ,business ,Solar tracker - Published
- 2018
31. Perceptions of carotenoid and melanin colouration in faces among young Australian adults
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Gozde Ozakinci, Clare E. Collins, Kristine Pezdirc, David I. Perrett, Megan E. Rollo, Ross Whitehead, Melinda J. Hutchesson, University of St Andrews. Child and Adolescent Health Research Unit, University of St Andrews. School of Medicine, University of St Andrews. St Andrews Sustainability Institute, University of St Andrews. Health Psychology, University of St Andrews. School of Psychology and Neuroscience, University of St Andrews. Institute of Behavioural and Neural Sciences, and University of St Andrews. Centre for Social Learning & Cognitive Evolution
- Subjects
BF Psychology ,genetic structures ,Skin coloration ,NDAS ,BF ,050109 social psychology ,Human skin ,050105 experimental psychology ,Melanin ,SDG 3 - Good Health and Well-being ,0501 psychology and cognitive sciences ,Food science ,Carotenoid ,General Psychology ,chemistry.chemical_classification ,Healthy ,Communication ,integumentary system ,business.industry ,05 social sciences ,Appearance ,food and beverages ,Mean age ,Skin colour ,Carotenoids ,chemistry ,Fruit ,Fruits and vegetables ,Single axis ,RC0321 ,Perception ,Sun exposure ,Fruit and vegetables ,Psychology ,business ,RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry - Abstract
Objective: Human skin colour is influenced by three pigments: haemoglobin, carotenoids, and melanin. Carotenoids are abundant in fruits and vegetables, and when consumed accumulate in all layers of the skin, predominantly imparting yellowness (b*). This study investigated the effect of the manipulation of carotenoid-based skin colour, relative to the skin colour conferred by melanin on the perceptions of health amongst a group of Australian adults. Method: Fifty-seven participants (n = 4 male; mean age 27.9 ± 7.5 years) completed three computer-based experiments on 50 trial faces. In the first two experiments, face image colour was manipulated along one or two independent single carotenoid or melanin axes on each trial to ‘make the face appear as healthy as possible’. In the third trial, face colour was manipulated on both the carotenoid and melanin axes simultaneously. Results: For the single axis, participants significantly increased melanin colouration and added carotenoid colouration to facial images that were initially low in skin yellowness (b*). When carotenoid and melanin axes were simultaneously manipulated, carotenoid colouration was raised (ΔE = 3.15 ( SE ±0.19)) and melanin colouration was lowered (ΔE = −1.04 ( SE ±0.1)). Conclusions: Young Australian adults perceive facial skin colouration, associated with both carotenoid intake from fruit and vegetables and melanin due to sun exposure as conveying the appearance of health in young adults. However, carotenoid colouration was more important to health perception. Postprint
- Published
- 2018
32. Reconstruction of spacecraft Progress attitude motion in single axis solar orientation mode by measurements of current from solar arrays
- Author
-
T V Matveeva, Mikhail Yuryevich Belyaev, M I Monakhov, Victor Vasil’yevich Sazonov, and D N Rulev
- Subjects
Physics ,Optics ,Spacecraft ,business.industry ,Orientation (geometry) ,Photovoltaic system ,Single axis ,Mode (statistics) ,Motion (geometry) ,Current (fluid) ,business - Published
- 2018
33. Erratum: 'Acoustic Lock: Position and orientation trapping of non-spherical sub-wavelength particles in mid-air using a single-axis acoustic levitator' [Appl. Phys. Lett. 113, 054101 (2018)]
- Author
-
L. Cox, Bruce W. Drinkwater, Anthony J. Croxford, and Asier Marzo
- Subjects
Physics ,Record locking ,Optics ,Physics and Astronomy (miscellaneous) ,Position (vector) ,business.industry ,Orientation (geometry) ,Single axis ,Trapping ,business ,Sub wavelength - Published
- 2021
34. Rapid tilt-series method for cryo-electron tomography: Characterizing stage behavior during FISE acquisition
- Author
-
Georges Chreifi, Grant J. Jensen, and Songye Chen
- Subjects
Electron Microscope Tomography ,0303 health sciences ,Single exposure ,business.industry ,Computer science ,Cryo-electron microscopy ,Cryoelectron Microscopy ,030302 biochemistry & molecular biology ,Resolution (electron density) ,Detector ,Article ,03 medical and health sciences ,Structural Biology ,Single axis ,Image Processing, Computer-Assisted ,Cryo-electron tomography ,Computer vision ,Tomography ,Stage (hydrology) ,Artificial intelligence ,business ,Tilt series ,030304 developmental biology - Abstract
We and others recently developed rapid tilt-series acquisition methods for cryo-electron tomography on a Titan Krios G3i equipped with a single axis holder and a K-series direct electron detector and showed that one of these, the fast-incremental single exposure (FISE) method, significantly accelerates tilt-series acquisition when compared to traditional methods while preserving the quality of the images. Here, we characterize the behavior of our single axis holder in detail during a FISE experiment to optimally balance data quality with speed. We explain our methodology in detail so others can characterize their own stages, and conclude with recommendations for projects with different resolution goals.
- Published
- 2021
35. RAST: RoundAbout Solar Tracking
- Author
-
Cristina Ventura, Paolo Rosa-Clot, Marco Rosa-Clot, and Giuseppe Marco Tina
- Subjects
Engineering ,floating systems ,Exploit ,photovoltaic ,roundabout ,tracking systems ,Energy (all) ,business.industry ,020209 energy ,Photovoltaic system ,Tracking system ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Solar tracker ,Transport engineering ,Range (aeronautics) ,Roundabout ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Electricity ,0210 nano-technology ,business - Abstract
Roundabouts became popular worldwide as a tool to reduce the number of car accidents and the EU encourages and promotes this technology as a solution to the problems of urban and extra-urban traffic. RAST (Roundabout Solar Tracking) systems are designed to exploit the available space in roundabouts, which are already equipped and monitored, in order to produce electricity with a photovoltaic single axis tracking system. The energy produced can be used directly by the surrounding facilities or stored and consumed later or channelled to nearby car charge points. The amount of energy that can be produced on a single roundabout is limited by the land size and is normally in the range 100-400 kWp, but the number of suitable roundabouts in cities is high. Therefore, RAST could make an important contribution to the energy production.
- Published
- 2017
36. A setup for single axis precision force measurements in horizontal plane by 20 nN resolution
- Author
-
Suren Vasilyan, Thomas Fröhlich, and Jan Schleichert
- Subjects
010309 optics ,Physics ,Optics ,business.industry ,0103 physical sciences ,Single axis ,Resolution (electron density) ,Electrical and Electronic Engineering ,Horizontal plane ,business ,01 natural sciences ,Instrumentation - Abstract
Varity of applications in science and engineering require technical abilities to conduct force measurements with high accuracy and precision in traceable manner. An example of such is the Lorentz Force Velocimetry (LFV), where forces of about 1 μN and below acting in horizontal direction on the object with approximately 1 kg weight are required to be resolved. In this paper we present a setup initially developed for this application, however, showing also a potential to be used elsewhere as a portable and conceptually unique setup. By the setup presented the force measurements in horizontal direction with 20 nN are resolved with 5 % to 7 % accuracy on the full range of the scale up to several mN.
- Published
- 2017
37. Design and Development of Solar Power Harvester With Single Axis Tracking Mechanism
- Author
-
Yow Long Chua, Kathiresan A.L. Mathiyalagan, and Tee Tiong Tay
- Subjects
Health (social science) ,General Computer Science ,business.industry ,Computer science ,020209 energy ,General Mathematics ,General Engineering ,02 engineering and technology ,Tracking (particle physics) ,Education ,Mechanism (engineering) ,General Energy ,Control theory ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Development (differential geometry) ,business ,Solar power ,General Environmental Science - Published
- 2017
38. Evaluation of a new training system, the cherry fruiting wall, compared to single axis and vase on cherry ‘Folfer(Cov)’
- Author
-
S. Pinczon Du Sel, E. Filleron, and V. Ayme-Sevenier
- Subjects
Horticulture ,business.product_category ,Crop yield ,Yield (wine) ,Single axis ,Training system ,Cultivar ,Vase ,Fruit tree pruning ,Rootstock ,business ,Mathematics - Abstract
In France, sweet cherry is generally trained in the now well-known vase training system. Growers know how to form and to prune trees in this system in order to have a good balance between yield and size of fruit. But in order to reduce production costs and to protect cherry fruit, other training systems that could be pruned mechanically and that allow installation of covers to protect against damage from rain or insects are being studied. A trial was planted in 2005 in order to compare agronomic and economic performances of three training systems using the scion cultivar 'Folfer(cov)': vase, single axis, and fruiting wall. Two rootstocks, Maxma® 14 and Tabel® Edabriz, were studied for the vase and fruiting wall systems, but only Tabel® Edabriz was used for the single axis. The cost to install the fruiting wall and single-axe systems is higher than the vase. However, the fruiting wall with Tabel® Edabriz exhibits greater precocity than the other training system/rootstock combinations. Fruiting wall with Tabel® Edabriz produces greater yields ha-1 with equal fruit quality. By contrast, sweet cherry on Maxma® 14 trained to the fruiting wall enters production later, and with lower yields than all other training system/rootstock combinations in this trial, such that after 8 years the cost of the plantation establishment had not yet been compensated with the production. Research findings regarding training system/rootstock combinations, yield, and fruit quality should be confirmed. Further, the question of long term performance must be studied.
- Published
- 2017
39. Efficient Single Axis Sun Tracker Design for Photovoltaic System Applications
- Author
-
Muayyad N. Fathallah, Hussain S. Akbar, and Ozlim O. Raoof
- Subjects
Optics ,business.industry ,Computer science ,Photovoltaic system ,Single axis ,Optoelectronics ,business ,Solar tracker - Published
- 2017
40. Are solar tracking technologies feasible for domestic applications in rural tropical Africa?
- Author
-
Graeme John Oliver, Kant E Kanyarusoke, and Jasson Gryzagoridis
- Subjects
lcsh:GE1-350 ,tropical Africa ,General Computer Science ,Computer science ,BitTorrent tracker ,business.industry ,Energy resources ,solar tracking ,Real-time computing ,solar energy ,Solar energy ,Tracking (particle physics) ,Solar tracker ,General Energy ,domestic application ,lcsh:Energy conservation ,Single axis ,lcsh:TJ163.26-163.5 ,business ,Energy (signal processing) ,lcsh:Environmental sciences ,Remote sensing - Abstract
That solar tracking improves energy yields from solar harvest systems is not debatable. Nor is the under powering of tropical Africa amidst plenty of energy resources – including solar. This paper presents a review of recent literature on tracking as applied to domestic solar harnessing devices. The purpose is to find basic requirements in design of a suitable solar tracker for the region’s rural homes. It is concluded that Single axis passive trackers possibly will stand better chances of acceptability in the region.
- Published
- 2017
41. Research on Nonlinear Comprehensive Calibration Algorithm for the Single-Axis Rotation Inertial Navigation System Based on Modified Unscented Kalman Filter
- Author
-
Li Meiling, Cheng Jianhua, Dongxue Guan, Wang Tongda, and Wei Zhang
- Subjects
business.industry ,Computer science ,010401 analytical chemistry ,020206 networking & telecommunications ,02 engineering and technology ,General Chemistry ,Kalman filter ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,Computational Mathematics ,Nonlinear system ,Extended Kalman filter ,Control theory ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Calibration algorithm ,General Materials Science ,Computer vision ,Unscented transform ,Artificial intelligence ,Electrical and Electronic Engineering ,business ,Rotation (mathematics) ,Inertial navigation system - Published
- 2017
42. A Novel Modification to the Incremental Forming Process, Part 2: Validation of the Multi-directional Tooling Method
- Author
-
Tyler J. Grimm, Ihab Ragai, and John T. Roth
- Subjects
0209 industrial biotechnology ,Engineering ,business.product_category ,Offset (computer science) ,business.industry ,Forming processes ,Mechanical engineering ,02 engineering and technology ,Surface finish ,Structural engineering ,Radius ,021001 nanoscience & nanotechnology ,Industrial and Manufacturing Engineering ,020901 industrial engineering & automation ,Artificial Intelligence ,Multi directional ,Single axis ,Die (manufacturing) ,Formability ,0210 nano-technology ,business - Abstract
Incremental forming (IF), a novel sheet material forming technique which has the ability to eliminate the need for die sets, forms sheet material through the use of a non-cutting tool that gradually deforms the sheet material into the desired shape. Generally, the shape of the tool tip is a hemisphere. In the following works, the authors validate a novel tool shape, presented in Part 1 of this research, that allows forming of the sheet material in multiple directions at a rapid rate. The works described herein demonstrate that a more complex tool tip can result in greater formability, improved surface finish, and reduced springback. The tested tool tip shape described herein is that of two hemispherical tips, revolved about a common radius from a single axis, vertically offset to half of the tool path's step size.
- Published
- 2017
43. Author Correction: Concyclic CH-π arrays for single-axis rotations of a bowl in a tube
- Author
-
Sota Sato, Kengo Fukunaga, Hiroyuki Isobe, Masahiro Fujita, and Taisuke Matsuno
- Subjects
Multidisciplinary ,Materials science ,business.industry ,Science ,General Physics and Astronomy ,General Chemistry ,General Biochemistry, Genetics and Molecular Biology ,Optics ,Single axis ,lcsh:Q ,Tube (fluid conveyance) ,lcsh:Science ,business - Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
- Published
- 2020
44. A Novel Approach for Accelerated Life Testing of Ground Vehicle Components
- Author
-
Umud Esat Ozturk
- Subjects
Truck ,Engineering ,business.industry ,Mechanical Engineering ,02 engineering and technology ,Ground vehicles ,021001 nanoscience & nanotechnology ,Durability ,Finite element method ,Automotive engineering ,Accelerated life testing ,020303 mechanical engineering & transports ,0203 mechanical engineering ,Mechanics of Materials ,Single axis ,Life test ,0210 nano-technology ,business ,Simulation ,Test data - Abstract
Accelerated life testing has major impact on the success of a ground vehicle development program. Accelerated life testing profile should represent the customer usage so that optimum design can be achieved. A novel approach incorporating finite element analysis and vehicle durability test data into single axis accelerated life test profile generation was developed in this study. The proposed approach was successfully applied to the engine mount bracket of a heavy duty truck engine and it is validated by vehicle and rig tests. The accelerated life testing procedure developed in this study is applicable to many components of ground vehicles. It is possible to test components at high confidence level and low cost with this approach.
- Published
- 2016
45. Method for measuring 3-axis cutting force of a pick cutter using the single-axis load cell array
- Author
-
Jung-Woo Cho, Myeong-Sik Jung, Jin-Young Park, Hoon Kang, Jaewook Lee, and Jin-Seok Jang
- Subjects
Computer science ,business.industry ,Cutting force ,Single axis ,Structural engineering ,business ,Load cell - Published
- 2016
46. Single-Axis Rigs
- Author
-
Jim Shumway
- Subjects
Physics ,Optics ,business.industry ,Single axis ,business - Published
- 2019
47. Numerical and experimental study of the behaviour of a single-axis fluidic thermal gyroscope
- Author
-
Caroline Gauthier-Blum, Guillaume Kock, Markus Schneider, Alain Giani, Philippe Combette, Marwan Tedjini, Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matériaux, MicroCapteurs et Acoustique (M2A), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut franco-allemand de recherches de Saint-Louis (ISL), DGA-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institute of Organic Chemistry II and Advanced Materials, University of Ulm, DGA-Matériaux et Nanosciences Grand-Est (MNGE), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Materials science ,business.industry ,010401 analytical chemistry ,General Engineering ,Gyroscope ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,law.invention ,[SPI]Engineering Sciences [physics] ,Optics ,law ,Thermal ,Single axis ,Fluidics ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,0210 nano-technology ,business ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2019
48. Effect of torque-tube parameters on rear-irradiance and rear-shading loss for bifacial PV performance on single-axis tracking systems
- Author
-
Joshua S. Stein, Chris Deline, Matthew Muller, Silvana Ayala Pelaez, Kevin Anderson, and Bill Marion
- Subjects
Offset (computer science) ,Materials science ,Optics ,business.industry ,Single axis ,Irradiance ,Torque ,Tracking system ,Shading ,Torque tube ,business ,Mismatch loss - Abstract
The emergence of cost-competitive bifacial PV modules has raised the question of the additional value of bifacial 1-axis tracking arrays, in particular when considering rear-irradiance losses from the tracker system itself. In this work, the effect of different geometries and materials of torque tubes is evaluated through ray-trace simulations and found to cause rear irradiance shading factors between 2% to 8% for systems without gap between the modules in 2-UP configuration. Inclusion of a gap between the modules can offset the shading factor. Electrical mismatch is also evaluated for the various configurations, and a methodology to apply shading factor and electrical mismatch loss to rear irradiance from the calculated loss in DC power, which averages 1% for the systems explored here, is proposed.
- Published
- 2019
49. Performance comparison of co-located fixed-tilt and single-axis tracker arrays
- Author
-
Geoffrey S. Kinsey, Mukund Kulkarni, Madhusudan Partani, Jie Zhang, Rubin Sidhu, and Brijit Shetty
- Subjects
business.industry ,020209 energy ,020208 electrical & electronic engineering ,Photovoltaic system ,Irradiance ,02 engineering and technology ,Maximum power point tracking ,Tilt (optics) ,Optics ,Performance ratio ,Performance comparison ,Thermal ,Single axis ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science ,business - Abstract
A 25-MW solar power plant was commissioned in Andhra Pradesh, India in the first quarter of 2016. The 3 MW of single-axis tracker arrays co-located with 22 MW of fixed-tilt arrays provide a direct comparison of their performance under variable irradiance and thermal conditions to inform the cost-benefit analysis of future installations. Through March 2019, the single-axis tracker arrays have delivered an increase in energy yield of more than 14%.
- Published
- 2019
50. The effects of brief swaying on postural control
- Author
-
Maxime Maheu, François Champoux, Sara Pagé, and Simon P. Landry
- Subjects
Adult ,Male ,030506 rehabilitation ,medicine.medical_specialty ,Movement ,Balance training ,Postural control ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,Humans ,Medicine ,Postural Balance ,Balance (ability) ,Analysis of Variance ,business.industry ,General Neuroscience ,Body sway ,Increased risk ,Healthy individuals ,Single axis ,Accidental Falls ,Female ,Analysis of variance ,0305 other medical science ,business ,030217 neurology & neurosurgery - Abstract
Postural control can be improved with balance training. However, the nature and duration of the training required to enhance posture remains unclear. We studied the effects of 5 min of a self-initiated balance exercise along a single axis on postural control in healthy individuals. Postural control was measured before and after a 5-min period where members of the experimental group were asked to lean their entire body forward and backward and members of the control group were asked to remain seated. A significant improvement for sway velocity, a postural control variable significantly associated with an increased risk of falls, was found in the experimental group following the body sway exercise. These data suggest that a basic exercise can rapidly improve postural control and reduce the risk of falls.
- Published
- 2017
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