The Optimum Power Load: A Simple and Powerful Tool for Testing and Training

2021 ◽  
pp. 1-9
Author(s):  
Irineu Loturco ◽  
Antonio Dello Iacono ◽  
Fábio Y. Nakamura ◽  
Tomás T. Freitas ◽  
Daniel Boullosa ◽  
...  
Keyword(s):  
Strong Support ◽  
Current Evidence ◽  
Novel Approach ◽  
Power Load ◽  
Velocity Relationship ◽  
Potential Applications ◽  
Bar Velocity ◽  
Acute And Chronic Effects ◽  
Testing Protocols ◽  
And Training

Purpose: The optimal power load is defined as the load that maximizes power output in a given exercise. This load can be determined through the use of various instruments, under different testing protocols. Specifically, the “optimum power load” (OPL) is derived from the load–velocity relationship, using only bar force and bar velocity in the power computation. The OPL is easily assessed using a simple incremental testing protocol, based on relative percentages of body mass. To date, several studies have examined the associations between the OPL and different sport-specific measures, as well as its acute and chronic effects on athletic performance. The aim of this brief review is to present and summarize the current evidence regarding the OPL, highlighting the main lines of research on this topic and discussing the potential applications of this novel approach for testing and training. Conclusions: The validity and simplicity of OPL-based schemes provide strong support for their use as an alternative to more traditional strength–power training strategies. The OPL method can be effectively used by coaches and sport scientists in different sports and populations, with different purposes and configurations.

The application of virtual reality in health professions� digital education: a narrative review (Preprint)

2018 ◽  
Author(s):  
Lorraine Tudor Car ◽  
Bhone Myint Kyaw ◽  
Josip Car
Keyword(s):  
Virtual Reality ◽  
Professional Education ◽  
Health Professions ◽  
Health Professions Education ◽  
Narrative Review ◽  
Current Evidence ◽  
Future Research ◽  
Educational Content ◽  
Potential Applications

BACKGROUND Digital technology called Virtual Reality (VR) is increasingly employed in health professions’ education. Yet, based on the current evidence, its use is narrowed around a few most applications and disciplines. There is a lack of an overview that would capture the diversity of different VR applications in health professions’ education and inform its use and research. OBJECTIVE This narrative review aims to explore different potential applications of VR in health professions’ education. METHODS The narrative synthesis approach to literature review was used to analyse the existing evidence. RESULTS We outline the role of VR features such as immersion, interactivity and feedback and explain the role of VR devices. Based on the type and scope of educational content VR can represent space, individuals, objects, structures or their combination. Application of VR in medical education encompasses environmental, organ and micro level. Environmental VR focuses on training in relation to health professionals’ environment and human interactions. Organ VR educational content targets primarily human body anatomy; and micro VR microscopic structures at the level of cells, molecules and atoms. We examine how different VR features and health professional education areas match these three VR types. CONCLUSIONS We conclude by highlighting the gaps in the literature and providing suggestions for future research.

scholarly journals Methods and applications for visualization of SNOMED CT concept sets

2014 ◽  
Vol 05 (01) ◽  
pp. 127-152 ◽  
Author(s):  
E. Sundvall ◽  
K.R. Gøeg ◽  
A.R. Højen
Keyword(s):  
Content Management ◽  
Graph Layout ◽  
Snomed Ct ◽  
Focus Group Interviews ◽  
Web Based ◽  
Hierarchical Relations ◽  
Potential Applications ◽  
Group Interviews ◽  
And Training ◽  
Selection Of

SummaryInconsistent use of SNOMED CT concepts may reduce comparability of information in health information systems. Terminology implementation should be approached by common strategies for navigating and selecting proper concepts. This study aims to explore ways of illustrating common pathways and ancestors of particular sets of concepts, to support consistent use of SNOMED CT and also assess potential applications for such visualizations.The open source prototype presented is an interactive web-based re-implementation of the terminology visualization tool TermViz that provides an overview of concepts and their hierarchical relations. It provides terminological features such as interactively rearranging graphs, fetching more concept nodes, highlighting least common parents and shared pathways in merged graphs etc.Four teams of three to four people used the prototype to complete a terminology mapping task and then, in focus group interviews, discussed the user experience and potential future tool usage. Potential purposes discussed included SNOMED CT search and training, consistent selection of concepts and content management.The evaluation indicated that the tool may be useful in many contexts especially if integrated with existing systems, and that the graph layout needs further tuning and development.Citation: Højen AR, Sundvall E, Gøeg KR. Methods and applications for visualization of SNOMED CT concept sets. Appl Clin Inf 2014; 5: 127–152http://dx.doi.org/10.4338/ACI-2013-09-RA-0071

A new approach to characterization of the transition temperatures of thin film NiTi shape memory alloys

2004 ◽  
Vol 19 (6) ◽  
pp. 1762-1767
Author(s):  
Nicholas W. Botterill ◽  
David M. Grant ◽  
Jianxin Zhang ◽  
Clive J. Roberts
Keyword(s):  
Thin Film ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Transition Temperatures ◽  
New Approach ◽  
Novel Approach ◽  
Potential Applications ◽  
Niti Shape Memory Alloys

A novel approach in determining the transition temperatures of NiTi shape memory alloys was investigated and compared with conventional techniques. The technique is based on microthemal analysis using a scanning thermal microscope (SThM). In particular, this method has the potential to allow the transformation temperatures of thin films to be investigated in situ. Thin film shape memory alloys have potential applications, such as microactuators, where conventional analysis techniques are either not directly applicable to such samples or are difficult to perform.

Recognition Method of Abnormal Power Consumption State of Power Users Based on Strategy Gradient Algorithm

2021 ◽  
Vol 16 (7) ◽  
pp. 1090-1097
Author(s):  
Fu Bao ◽  
Yudou Gao
Keyword(s):  
Power Consumption ◽  
Gradient Algorithm ◽  
Process Testing ◽  
Power Load ◽  
Recognition Result ◽  
Abnormal Increase ◽  
Recognition Efficiency ◽  
State Of Power ◽  
Status Recognition ◽  
And Training

Because the traditional method ignores the problem of power load data preprocessing, the accuracy of the recognition result of the power consumption status is not high, the recognition efficiency is not high, and the recognition effect is not good. For this reason, a method for identifying the abnormal power consumption status of power users based on the strategy gradient algorithm is proposed. The preprocessing of power load data mainly includes the completion of missing data and the feature extraction of power load data. Based on the results of the preprocessing, the abnormal increase in user power consumption is detected. Finally, the strategy gradient algorithm is used for initial training and training process testing to complete the identification of the abnormal state of power users. The experimental results show that the accuracy of the power status recognition result of the proposed method is higher, and the recognition time is always less than 2.0 s, indicating that the recognition effect of the method is better.

Effect of Electron Beam Irradiation on the Rheological Properties and Phase Transition Temperature of Poly(N-Vinylcaprolactam)

2020 ◽  
Vol 865 ◽  
pp. 19-24
Author(s):  
Shane C. Halligan ◽  
Kieran A. Murray ◽  
Olivier Vrain ◽  
John G. Lyons ◽  
Luke M. Geever
Keyword(s):  
Phase Transition ◽  
Electron Beam ◽  
Rheological Properties ◽  
Smart Materials ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Beam Radiation ◽  
Rheological Analysis ◽  
Novel Approach ◽  
Potential Applications

Exposing smart materials to electron beam radiation can induce free radical reactions, such as chain branching or crosslinking, hence enhancing the characteristics of the polymers. Poly (N-vinylcaprolactam) (PNVCL) is a smart material which was synthesised by photopolymerisation. Subsequently, samples were exposed to electron beam technology, where electron beam irradiation was utilised in a novel approach. This led to the modification of the rheological and phase transition properties. Modifying PNVCL through electron beam irradiation opens new avenues and potential applications in the biomedical field. Physically cross-linked PNVCL polymers were prepared by photopolymerisation and samples were subsequently irradiated at different dose ranges (5kGy, 25kGy and 50 kGy). The rheological properties of the PNVCL based samples were established by rheological analysis. Similarly, the PNVCL based sample polymers were further characterised in solution to determine the phase transition of PNVCL.

scholarly journals Reducing the resource acquisition costs for returnee entrepreneurs: role of Chinese national science parks

2020 ◽  
Vol 26 (7) ◽  
pp. 1627-1657
Author(s):  
Senmao Xia ◽  
Yu Xiong ◽  
Min Zhang ◽  
James Cornford ◽  
Yipeng Liu ◽  
...  
Keyword(s):  
New Ventures ◽  
Strong Support ◽  
Resource Acquisition ◽  
Science Parks ◽  
Social Event ◽  
Content Type ◽  
National Science ◽  
Acquisition Costs ◽  
The Right ◽  
And Training

PurposeThe purpose of this paper is to empirically explore the mechanisms through which Chinese National Science Parks' (NSPs) services facilitate returnee entrepreneurs' (REs) acquisition of resources for their new ventures. Resource acquisition is crucial for new ventures, but it inevitably leads to significant costs increase. Although the NSPs offer various services to REs to reduce these costs, they still struggle to find the right mix of services.Design/methodology/approachFrom the transaction cost's perspective, an exploratory multiple-case study was conducted with data collected from six NSPs in China.FindingsThe results reveal that four types of NSP services (mentoring and training, social event, promotion of REs and accreditation of resource holders (RHs)) have both individual and joint effects on reducing REs' resource acquisition costs. Specifically, the “accreditation of RHs” service directly helps REs reduce search costs. The combination of “accreditation of RHs”, “promotion of REs” and “social event” services help REs and RHs to establish guanxi. Further, guanxi, working along with the “mentoring and training” service, helps REs to reduce contracting, monitoring and enforcement costs.Originality/valueThis study is among the first to explore the matching mechanisms between science parks’ services and entrepreneurs' cost reduction. This helps reconcile the inconsistent findings on science parks' effect by explaining why some NSPs are able to provide strong support to REs while others are less successful. In addition, the findings are useful for NSPs to develop the right mix of tailored services for REs. Finally, REs will find this study useful to evaluate which NSP is a more suitable location for their new ventures.

scholarly journals Estimation of Relative Load From Bar Velocity in the Full Back Squat Exercise

2017 ◽  
Vol 01 (02) ◽  
pp. E80-E88 ◽  
Author(s):  
Luis Sánchez-Medina ◽  
Jesús Pallarés ◽  
Carlos Pérez ◽  
Ricardo Morán-Navarro ◽  
Juan González-Badillo
Keyword(s):  
Relative Strength ◽  
Loading Test ◽  
Mean Velocity ◽  
Relative Load ◽  
Back Squat ◽  
Training Approach ◽  
Velocity Relationship ◽  
Squat Exercise ◽  
Close Relationship ◽  
Bar Velocity

AbstractThe use of bar velocity to estimate relative load in the back squat exercise was examined. 80 strength-trained men performed a progressive loading test to determine their one-repetition maximum (1RM) and load-velocity relationship. Mean (MV), mean propulsive (MPV) and peak (PV) velocity measures of the concentric phase were analyzed. Both MV and MPV showed a very close relationship to %1RM (R2=0.96), whereas a weaker association (R2=0.79) and larger SEE (0.14 vs. 0.06 m·s−1) were found for PV. Prediction equations to estimate load from velocity were obtained. When dividing the sample into 3 groups of different relative strength (1RM/body mass), no differences were found between groups for the MPV attained against each %1RM. MV attained with the 1RM was 0.32±0.03 m·s−1. The propulsive phase accounted for ~82% of concentric duration at 40% 1RM, and progressively increased until reaching 100% at 1RM. Provided that repetitions are performed at maximal intended velocity, a good estimation of load (%1RM) can be obtained from mean velocity as soon as the first repetition is completed. This finding provides an alternative to the often demanding, time-consuming and interfering 1RM or nRM tests and allows implementing a velocity-based resistance training approach.

Linking Active Living and Nutrition Counselling: Dietitians’ Perceptions

2004 ◽  
Vol 65 (4) ◽  
pp. 154-160 ◽  
Author(s):  
Mark A. Spidel ◽  
Marie-Claude Paquette ◽  
J. Dru Marshall ◽  
Rhonda C. Bell ◽  
Linda J. McCargar
Keyword(s):  
Physical Activity ◽  
Strong Support ◽  
Active Living ◽  
Registered Dietitians ◽  
Focus Group Interviews ◽  
Perceived Needs ◽  
Nutrition Counselling ◽  
Group Interviews ◽  
Professional Perceptions ◽  
And Training

Healthy eating and active living have become key concepts in health promotion, and, increasingly, the two messages are being combined. Dietitians are in an ideal position to promote physical activity as an adjunct to nutrition counselling. Focus group interviews were used to identify dietitians’ perceptions and needs related to incorporating active living messages into their practices. Six focus groups, involving 42 participants (40 registered dietitians and two dietetic interns), were conducted in cities throughout Alberta. Issues explored during the interviews included the dietitian's role in promoting active living, barriers to promoting physical activity, opportunities for collaboration between dietitians and exercise professionals, and dietitians’ perceived needs for integrating active living messages into their practices effectively. Findings indicate strong support for incorporating active living messages into nutrition counselling. However, lack of knowledge was identified as a barrier to dietitians’ proactive role, and concerns were raised about public and professional perceptions if dietitians counselled on this issue. Participants felt that they required additional knowledge and training in physical activity in order to promote it effectively. Development and implementation of programs designed to meet these needs would help dietitians integrate active living messages into their practices.

Communication Education in Korea

2003 ◽  
Vol 13 (1) ◽  
pp. 5-28
Author(s):  
Baekeun Cha ◽  
Eunkyong Yook ◽  
Eungjun Min
Keyword(s):  
Historical Development ◽  
Strong Support ◽  
Current Status ◽  
Media Industry ◽  
Communication Education ◽  
Growing Pains ◽  
The Media ◽  
The Government ◽  
And Training

The study of communication has become one of most popular and major disciplines in Korea. There are over one hundred communication-related departments from eighty-eight colleges with more than 16,000 students today, doubled from the early 1990s. With strong support from the government, the media industry, and colleges, communication related departments have been able to build a reasonably good foundation in terms of programs and curriculums. Like any other disciplines, however, it is experiencing growing pains, searching a balance between the intellectually coherent curriculums and providing marketable knowledge and training for example. This essay discloses and examines the historical development and the current status of communication education in Korea.The study of communication has become one of most popular and major disciplines in Korea. There are over one hundred communication-related departments from eighty-eight colleges with more than 16,000 students today, doubled from the early 1990s. With strong support from the government, the media industry, and colleges, communication related departments have been able to build a reasonably good foundation in terms of programs and curriculums. Like any other disciplines, however, it is experiencing growing pains, searching a balance between the intellectually coherent curriculums and providing marketable knowledge and training for example. This essay discloses and examines the historical development and the current status of communication education in Korea.

A NOVEL APPROACH FOR SHORT-TERM LOAD FORECASTING USING SUPPORT VECTOR MACHINES

2004 ◽  
Vol 14 (05) ◽  
pp. 329-335 ◽  
Author(s):  
LIANG TIAN ◽  
AFZEL NOORE
Keyword(s):  
Neural Network ◽  
Load Forecasting ◽  
Support Vector ◽  
Short Term ◽  
Feed Forward Neural Network ◽  
Modeling Approach ◽  
Novel Approach ◽  
Power Load ◽  
Short Term Load Forecasting ◽  
Network Approaches

A support vector machine (SVM) modeling approach for short-term load forecasting is proposed. The SVM learning scheme is applied to the power load data, forcing the network to learn the inherent internal temporal property of power load sequence. We also study the performance when other related input variables such as temperature and humidity are considered. The performance of our proposed SVM modeling approach has been tested and compared with feed-forward neural network and cosine radial basis function neural network approaches. Numerical results show that the SVM approach yields better generalization capability and lower prediction error compared to those neural network approaches.

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