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Agricultural impacts of increased alcohol industry demand for corn: the case of Ohio 酒精工业对玉米需求增加对农业的影响:以俄亥俄州为例
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90020-3
D. Southgate, S. Ott, N. Rask, Francis O. Walker
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引用次数: 0
Thermophilic anaerobic digestion of screened dairy manure using a two-phase process 筛选后的奶牛粪便的两相厌氧消化
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90023-9
K. Lo, P. Liao
{"title":"Thermophilic anaerobic digestion of screened dairy manure using a two-phase process","authors":"K. Lo, P. Liao","doi":"10.1016/0167-5826(86)90023-9","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90023-9","url":null,"abstract":"","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87335548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Simulation and analysis of soil heat storage systems for a solar greenhouse. I. Analysis 太阳能温室土壤储热系统的模拟与分析。一、分析
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90017-3
T. Boulard, A. Baille
{"title":"Simulation and analysis of soil heat storage systems for a solar greenhouse. I. Analysis","authors":"T. Boulard,&nbsp;A. Baille","doi":"10.1016/0167-5826(86)90017-3","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90017-3","url":null,"abstract":"<div><p>A numerical model of heat storage by buried pipes is developed and applied to the specific conditions of a greenhouse. In the first part, the model is tested against measured data given by an experimental heat-storage greenhouse system. Comparisons between model calculations and experimental results show a good agreement for both the temperature field and the energy exchange rate. Some results on daily and seasonal performance of the system are presented.</p></div>","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5826(86)90017-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Diesel engine performance as influenced by fuel temperature 燃油温度对柴油发动机性能的影响
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90022-7
H.R. Sumner , W.D. Best , G.E. Monroe
{"title":"Diesel engine performance as influenced by fuel temperature","authors":"H.R. Sumner ,&nbsp;W.D. Best ,&nbsp;G.E. Monroe","doi":"10.1016/0167-5826(86)90022-7","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90022-7","url":null,"abstract":"<div><p>The effects of diesel fuel temperature on the efficiency of a 4.4-L diesel engine were studied. Fuel temperatures of 41, 67, and 81 °C were used with engine loads of 0 to 100% of full load at three engine frequencies. Regression equations were developed that predicted fuel economy as a function of PTO power at three engine frequencies. An increase in engine fuel temperature did not improve fuel economy, but did result in reduced fuel mass flow through the injector pump and reduced maximum PTO power. Reducing engine frequency improved fuel economy and supported the ‘throttle back shift up’ technique for saving fuel.</p></div>","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5826(86)90022-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy Alternatives in Latin America 拉丁美洲的能源替代品
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90025-2
Lourival C. Monaco
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引用次数: 1
Generation of diurnal solar radiation, temperature, and humidity patterns 生成日太阳辐射、温度和湿度模式
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90018-5
B. Kimball, L. Bellamy
{"title":"Generation of diurnal solar radiation, temperature, and humidity patterns","authors":"B. Kimball, L. Bellamy","doi":"10.1016/0167-5826(86)90018-5","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90018-5","url":null,"abstract":"","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87270789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 34
Consideration of the utility of additional insulation in hen-roost structures 考虑在鸡窝结构中使用额外的绝缘材料
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90024-0
D. Govaer
{"title":"Consideration of the utility of additional insulation in hen-roost structures","authors":"D. Govaer","doi":"10.1016/0167-5826(86)90024-0","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90024-0","url":null,"abstract":"","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89745710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Agricultural impacts of increased alcohol industry demand for corn: the case of Ohio 酒精行业对玉米需求增加对农业的影响：以俄亥俄州为例
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90020-3
Douglas Southgate , Stephen Ott , Norman Rask , Francis Walker
{"title":"Agricultural impacts of increased alcohol industry demand for corn: the case of Ohio","authors":"Douglas Southgate ,&nbsp;Stephen Ott ,&nbsp;Norman Rask ,&nbsp;Francis Walker","doi":"10.1016/0167-5826(86)90020-3","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90020-3","url":null,"abstract":"<div><p>A mathematical programming model was used to forecast the impacts on Ohio's agricultural sector of a moderate increase in alcohol industry demand for corn. Because converting corn into ethanol yields byproduct feeds that can substitute for soybean meal and other commodities, most of the alcohol industry's demand for corn can be satisfied by switching land from the production of soybeans to the production of corn. For this reason, projected levels of ethanol production do not greatly affect crop or livestock prices. This finding is likely to hold for other corn-growing areas in North America.</p></div>","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5826(86)90020-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy Alternatives in Latin America: Francisco Sczekely. Tycooly, Dublin, 1983. 168 pp., US$20/£13 softcover, 0-907567-17-7; US$40/£26 hardback 拉丁美洲的能源替代:Francisco Sczekely。1983年，都柏林Tycooly。168页，20美元/ 13英镑，平装，0-907567-17-7;40美元/£26精装本
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90025-2
L. C. Mônaco
{"title":"Energy Alternatives in Latin America: Francisco Sczekely. Tycooly, Dublin, 1983. 168 pp., US$20/£13 softcover, 0-907567-17-7; US$40/£26 hardback","authors":"L. C. Mônaco","doi":"10.1016/0167-5826(86)90025-2","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90025-2","url":null,"abstract":"","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87061684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Generation of diurnal solar radiation, temperature, and humidity patterns 日太阳辐射、温度和湿度模式的产生
Energy in Agriculture Pub Date : 1986-11-01 DOI: 10.1016/0167-5826(86)90018-5
B.A. Kimball, L.A. Bellamy
{"title":"Generation of diurnal solar radiation, temperature, and humidity patterns","authors":"B.A. Kimball,&nbsp;L.A. Bellamy","doi":"10.1016/0167-5826(86)90018-5","DOIUrl":"https://doi.org/10.1016/0167-5826(86)90018-5","url":null,"abstract":"<div><p>Diurnal patterns of solar radiation, temperature and humidity are needed for energy and water use evaluations of greenhouses and other agricultural structures, as well as for plant growth simulation studies. Moreover, these diurnal weather pattern data are not readily available for most locations around the world. Somewhat more available are mean monthly values of total daily solar radiation, of maximum and minimum air temperature, and of vapor pressure. Some simple models were taken from the literature and modified to generate diurnal patterns from such data. Model values were then compared to actual diurnal data from a total of eleven locations in New Zealand, Denmark and the United States. For solar radiation a simple half-cosine model had an overall root-mean-square (rms) difference from observations of 16.3 W m<sup>−2</sup>, but the daylength was adjusted slightly to attain this low rms value. For air temperature, the model of Parton and Logan was modified to force the nighttime decrease in temperature to the minimum near sunrise. This modified equation had an overall rms difference from the observations of 0.64°C. The model for vapor pressure was a simple constant equal to the daily average, and it had an overall rms difference from observations of 0.042 kPa. Diurnal relative humidity values could then be calculated from the constant vapor pressure and diurnal temperature values. Thus, these simple models should be adequate for generating diurnal solar radiation, temperature, and humidity patterns for many applications.</p></div>","PeriodicalId":100470,"journal":{"name":"Energy in Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5826(86)90018-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 34
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