Results 21 to 30 of about 3,983,280 (116)
The effects of training on gross efficiency in cycling: a review. [PDF]
, 2009 There has been much debate in the recent scientific literature regarding the possible ability to increase gross efficiency in cycling via training. Using cross-sectional study designs, researchers have demonstrated no significant differences in gross ...
Hopker, J. +16 more
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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 +2 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
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Frontiers in Physiology, 2018 Longer distance cross-country ski (14–220 km) races such as the Visma Ski Classics (VSC) has recently gained attention in addition to the traditional Olympic distances (5–50 km) associated with cross-country (XC) skiing.
Edvard H. Sagelv +8 more
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2009 The profile of the advanced triple cycle steam-gas plant has been selected. The authors have developed the mathematical model for calculating the indicators of triple cycle steam-gas plant.
N. N. Galashov, S. A. Tsibulsky
doaj +2 more sources
Output volatility and efficiency gains: evidence from Latin American gross value added
Journal of Applied Economics, 2021 Based on gross value added (GVA) shares of economic activities from 1990 to 2014, the paper shows that convex growth-instability frontiers exist for 19 Latin American countries. Numerical simulations show that in 2011, Latin America's industry portfolios
Kurt A. Hafner
doaj +1 more source
Entropy, 2019 The performance of a 300 kW organic Rankine cycle (ORC) prototype was experimentally investigated for low-grade waste heat recovery in industry. The prototype employed a specially developed single-stage radial turbine that was integrated with a semi ...
Ruijie Wang +4 more
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Inverse relationship between V?O2max and gross efficiency. [PDF]
, 2012 The aim of this study was to identify if an inverse relationship exists between Gross Efficiency (GE) and V?O2max in trained cyclists. In Experiment 1, 14 trained cyclist's GE and V?O2max were recorded at 5 different phases of a cycling 'self-coached ...
Hopker, J. +8 more
core +1 more source
Determining the Efficiency and Inefficiency Intervals of Crop Production in Iran [PDF]
پژوهشهای اقتصادی, 2020 In this study, using the classic and developed models of data envelopment analysis, the frontiers of efficiency and inefficiency were determined for 29 irrigated crops and the relative position of products was determined in terms of gross income and ...
ali shahnavazi
doaj
Identification of a general light use efficiency model for gross primary production [PDF]
Biogeosciences, 2011 Non-stationary and non-linear dynamic time series analysis tools are applied to multi-annual eddy covariance and micrometeorological data from 44 FLUXNET sites to derive a light use efficiency model for gross primary production on a daily basis.
J. E. Horn, K. Schulz
doaj +1 more source