Results 31 to 40 of about 3,888,640 (305)

The Anaerobic Capacity of Cross-Country Skiers: The Effect of Computational Method and Skiing Sub-technique

Frontiers in Sports and Active Living, 2020
Anaerobic capacity is an important performance-determining variable of sprint cross-country skiing. Nevertheless, to date, no study has directly compared the anaerobic capacity, determined using the maximal accumulated oxygen deficit (MAOD) method and ...
Erik P. Andersson, Dionne A. Noordhof, Nestor Lögdal   +2 more
doaj   +1 more source

Experimental study on power generation plant of a 1 kW small‐scale Organic Rankine Cycle system using R290

Energy Science & Engineering, 2022
This work presents an experimental investigation of a small‐scale cryogenic Organic Rankine Cycle (ORC) power generation plant for cold energy utilization using scroll expander and R290.
Feng Wang, Wenzhong Gao, Gen Li, Zhen Tian, Xiaozhong Wang   +4 more
doaj   +1 more source

Simulation of Gross Primary Productivity Using Multiple Light Use Efficiency Models

Land, 2021
Gross primary productivity (GPP) is the most basic variable in a carbon cycle study that determines the carbon that enters the ecosystem. The remote sensing-based light use efficiency (LUE) model is one of the primary tools that is currently used to ...
Jun Zhang, Xufeng Wang, Jun Ren
doaj   +1 more source

Profitability of Contractual Bread Wheat Seed Production in Mecha District of Amhara Region, Ethiopia [PDF]

Journal of Central European Agriculture, 2012
The study was undertaken to examine the profitability of contractual bread wheat seed production in Kudmi village of Mecha district in Amhara region, Ethiopia. Primary data were collected from fourteen seed growers using structured questionnaire.
Dawit TSEGAYE
doaj   +1 more source

The Reliability of Measuring Gross Efficiency During High-Intensity Cycling Exercise [PDF]

International Journal of Sports Physiology and Performance, 2020
Purpose: To evaluate the reliability of calculating gross efficiency (GE) conventionally and using a back extrapolation (BE) method during high-intensity exercise (HIE). Methods: A total of 12 trained participants completed 2 HIE bouts (P1 = 4 min at 80% maximal aerobic power [MAP]; P2 = 4 min at 100%MAP). GE was calculated conventionally in the last 3 
Ebreo, Richard, Passfield, Louis, Hopker, James   +2 more
openaire   +2 more sources

The influence of training status, age, and muscle fiber type on cycling efficiency and endurance performance. [PDF]

, 2013
The purpose of this study was to assess the influence of age, training status, and muscle fiber-type distribution on cycling efficiency. Forty men were recruited into one of four groups: young and old trained cyclists, and young and old untrained ...
Wiles, J., Hopker, J., Coleman, Damian A, Jobson, Simon A., Gregson, Hannah C, Wiles, Jonathan, Coleman, D., Gregson, H., Coleman, Damian A., Hopker, James G., Passfield, L., von der Haar, Tobias, Passfield, Louis, Von der Haar, T., Jobson, S., Gregson, Hannah C.   +15 more
core   +1 more source

The Slow Component of Oxygen Uptake and Efficiency in Resistance Exercises: A Comparison With Endurance Exercises

Frontiers in Physiology, 2019
IntroductionThere is a lack of information regarding the slow component of oxygen uptake (VO2sc) and efficiency/economy in resistance exercises despite the crucial role played in endurance performance.Purposethis study aimed to compare the VO2sc ...
Manuel V. Garnacho-Castaño, Lluis Albesa-Albiol, Noemí Serra-Payá, Manuel Gomis Bataller, Raquel Felíu-Ruano, Lluis Guirao Cano, Lluis Guirao Cano, Eulogio Pleguezuelos Cobo, Eulogio Pleguezuelos Cobo, José Luis Maté-Muñoz   +9 more
doaj   +1 more source

FARMERS RESOURCES USE EFFICIENCY IN SOME HORTICULTURE CROPS PRODUCTION IN NORTH WESTERN COAST AREA [PDF]

Arab Universities Journal of Agricultural Sciences, 2014
The research estimated the efficiency of resource use among north western coast farmers in Marsa matrouh governorate using a sample of 200 respondents that were randomly selected; Interview schedules and structured questionnaires were administered to ...
Soha M. Eldeep, Dalia E. Abozied
doaj   +1 more source

Physiological Responses to Rifle Carriage During Roller-Skiing in Elite Biathletes

Frontiers in Physiology, 2019
Purpose: This study aimed to investigate the physiological factors affected by rifle carriage during biathlon skiing performance, as well as the sex differences associated with rifle carriage.Methods: Seventeen national- and international-level ...
Malin Jonsson Kårström, Kerry McGawley, Marko S. Laaksonen   +2 more
doaj   +1 more source

The relationship between cadence, pedalling technique and gross efficiency in cycling [PDF]

European Journal of Applied Physiology, 2011
Technique and energy saving are two variables often considered as important for performance in cycling and related to each other. Theoretically, excellent pedalling technique should give high gross efficiency (GE). The purpose of the present study was to examine the relationship between pedalling technique and GE. 10 well-trained cyclists were measured
Leirdal, Stig, Ettema, Gertjan
openaire   +2 more sources