Results 31 to 40 of about 109,285 (263)
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 +4 more
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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
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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
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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 +2 more
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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 +9 more
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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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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
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Economic analysis of field crop production on a family farm [PDF]
Acta Agriculturae Serbica, 2022 An economic analysis of field crop (wheat, corn, triticale and sunflower) production on a family farm, representing a case-study average farm, during one production year involved calculation of production costs, gross margin, economic efficiency and rate
Veljković Biljana +6 more
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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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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
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