准确定位 特色办刊——关于《南京农业大学学报（社科版）》办刊的思考     

刘浩 《农业图书情报学刊》2011,23(8):183-186,201

从栏目设置、来稿用稿、论文质量及影响力、发行与传播方面分析了《南京农业大学学报（社科版）》十年来的发展情况及其影响力,并在此基础上总结了学报办刊的实践,最后提出学报今后发展的努力方向,以期为各学报的发展提供参考。  相似文献   

不同种类微生物对普洱茶发酵过程的影响   总被引：1，自引：0，他引：1  

付秀娟  宋文军  徐咏全  李长文 《茶叶科学》2012,32(4):325-330

为阐明微生物在普洱茶发酵过程中作用机制,进行了普洱生茶单菌发酵实验,通过跟踪不同菌种对普洱茶发酵过程中感官品质和理化指标的影响,发现不同微生物对普洱茶发酵的作用,并对优势菌种进行混菌发酵实验,以期为工业化微生物发酵普洱茶提供理论和数据支持。结果表明,普洱茶发酵过程中,叶色由黄绿变为猪肝色,茶汤的苦涩感逐渐减弱,汤色红浓明亮,理化成分中茶多酚和水浸出物含量均减少,茶褐素和咖啡碱含量增加,且霉菌对这些成分的影响最大,酵母次之,细菌最小。混菌发酵茶样20d即具有普洱熟茶的品质。结果证明采用合理配比微生物发酵普洱茶可以缩短发酵时间,而且能更好地控制和规范普洱茶的发酵趋势和结果。  相似文献   

印度SQL Server数据库设计教材的特色与理念     

叶贵友 《农业网络信息》2011,(9)

教材是教学思想与教学内容的重要载体。从中印教材的编者队伍、内容组织、编排特点、知识结构的优化与教学方法等对比,感悟印度的SQL Server数据库设计教材在培养学生解决问题的能力和创新能力上极具特色,对计算机专业由学科体系向行动导向课程模式的顺利转型具有重要的借鉴作用。  相似文献   

Effects of charging voltage,application speed,target height,and orientation upon charged spray deposition on leaf abaxial and adaxial surfaces   总被引：1，自引：0，他引：1  

Devanand Maski  Divaker Durairaj 《Crop Protection》2010

Wastage of agricultural chemicals and ensuing environmental pollution is an issue, where ineffective spray deposition is a major concern with conventional pesticide application methods. Electrostatic spraying is known to be one of the most effective methods to improve leaf abaxial (underside) surface deposition, overall deposition, and distribution on the plant targets. Deposition of charged sprays on leaf abaxial and adaxial (upper) surfaces as influenced by the spray charging voltage (system), application speed (operational), target height and orientation (target) parameters was studied in the laboratory. An air-assisted electrostatic induction spray charging system attached to a moving carriage was used to apply charged spray at uniform application (ground) speeds. Spray deposition (101–71 μm NMD), determined using a fluorescent tracer technique increased with charging (0–5.5 mC kg⁻¹) on leaf abaxial and decreased with charging on adaxial surface. The deposition was higher on abaxial (0.66–1.33 μg cm⁻²) at 30° below (horizontal plane) and on adaxial (0.78–1.79 μg cm⁻²) at 0° (horizontal) target orientation for lower (0.278 m s⁻¹) application speed. At all target heights, abaxial deposition increased with charging voltage (0–4.0 kV) for medium application speed (0.417 m s⁻¹) and adaxial deposition decreased with charging voltage for lower application speed (0.278 m s⁻¹). The medium application speed with higher charging voltage was optimum for abaxial and adaxial deposition. The droplet velocity and charging voltage were the key factors for obtaining desired spray deposition on targets. All the selected factors including target orientation (O), application speed (S), target surface (L), and charging voltage (V), and their interactions except between O and S were significant at lower (0.35 m) and medium (0.65 m) target heights. All the factors and their interactions except between O and V were significant at higher (0.95 m) height. Electrostatically charged spray improved the underside (abaxial) and overall deposition. The deposition was substantially influenced by factors such as charging voltage, application speed, plant target height, and target orientation.  相似文献   

行动导向教学法在宠物解剖学中的应用     

李建柱  唐雪峰  黄立  陈敏  张玲 《信阳农业高等专科学校学报》2011,21(2):153-154

行动导向教学法是一种以培养学生的关键能力和职业行为能力为目标的新的教学方法,在宠物解剖学中运用行动导向教学法可以达到事半功倍的教学效果。  相似文献   

关于太原市开展创业培训的几点思考     

郑锁平 《农产品加工．学刊》2010,(5)

就业是民生之本,创业是民富之源,创业培训是提高企业开办率、稳定企业经营率的重要环节。太原市作为山西省省会城市,在开展创业培训工作中积累了较多经验。主要阐释了太原市创业培训的做法,指出其中存在的问题,对未来开展创业培训提出相关建议。  相似文献   

Simulation for the Effect of Building Plan andOrientation on Natural Ventilation     

DING Yong  LI Bai zhan  SHEN Yan  SU Ying ying 《保鲜与加工》2010,(1):90-95

Indoor thermal comfort can be significantly improved by natural ventilation with reasonable architectural design. In order to compare natural ventilation effect, the distribution of velocity field, temperature field and the PMV in different architecture layout and orientation design were analyzed with house types in Best House Type Competition. It was found that indoor natural ventilation effect was obviously improved by means of altering the layout and orientation, where the maximum velocity varied from 0.24m/s to 0.82m/s. And the temperature decreased 0.9℃ and the value of PMV was more approximate to comfort.  相似文献   

崩岗侵蚀地貌分布的海拔高程与坡向选择性   总被引：3，自引：1，他引：2  

刘希林  连海清 《水土保持通报》2011,(4):32-36,41

崩岗侵蚀地貌在华南地区广泛分布,近年的崩岗普查为科学研究提供了详实的资料。根据统计结果,重新认识了早期提出的崩岗侵蚀地貌的分布具有海拔高程和坡向选择性的特点。通过对几个典型崩岗发育区资料的分析表明,人类生产活动的高程范围影响着崩岗的发育和分布,崩岗分布的地形相对高差研究较海拔高程研究更具现实意义。以推理方式质疑已有崩岗侵蚀地貌分布坡向性选择的成因解释,并提出可能是由于统计盲点而导致的表象性误差。分析结果表明,太阳辐射—崩岗发育的推论有其限制条件,应将人类生产活动作为崩岗侵蚀地貌发育新的驱动力给予充分认识。  相似文献   

关于森林经理学的正名,定位与开拓   总被引：1，自引：0，他引：1  

丁思统 《江西农业大学学报》1996,18(1):73-75

森林经理学二字的释义,不一定视为经营与管理二词的缩写,而应是度量与筹划,森林经理学是森林资源度量与筹划的技术科学。  相似文献   

长崎齿瓢虫属Afissula kapur 1955种类及地理分布的研究   总被引：2，自引：0，他引：2  

曹诚一 《西南林学院学报》1989,9(2):162-167

长崎齿瓢虫属Afissula Kapur自1955年建立以来,近30年经各国学者不断地发现,有的重新组合到这个属,迄今该属共有13个种。本文从生物学、生态学及区系学的角度研究了这13个种的形态、食性及其分布特点,从此可以看出该类群发源于喜马拉雅地区并向该地区的东北、东南方向扩展。本研究对食植瓢虫亚科的演化增添了新的内容。  相似文献