Research on the Performance of Indoor Air-cooled Heat Pump at Suummer Situationr     

WANG Yong  LONG En-shen  CHEN Jin-hu  WEI Qiang 《保鲜与加工》2004,(6):67-71

Based on the contrast experiment, the condition of air-cooled heat pump operating indoors is analyzed in this paper.The operating performance corresponding to such conditions is gained.The ventilation condition of stable operation for air-cooled heat pump is found.At the same time, the experimental results based on actual work are proved. indoors; air-cooled heat pump; ventilation   相似文献   

Investigate to Water Resource and the Dispatch to Water Capacity in LIJIANG     

YU Ze-bin  LONG Teng-rui  SHI Lian  WANG Dun-qiu 《保鲜与加工》2004,(7):118-121

The tremendous seasonal variation of rainfall and the relative little dispose capacity of sewage are the main reason of the lack of water quantity and the contaminate of water quality in low water season in LIJIANG. Adjusting water quantity is an important measure to resolve the problem. So, the author does an investigation on water resource of LIJIANG, calculates upper-water supply and requires equation. As a result, in the condition of no water adjust, and if in the extraordinary year of the lack of water quantity, the water flow will fade in 2010, and the demand of water quantity of 30 m~3/s in the season of the lack of water will not be satisfied. Based on the actuality of water resource, the thesis introduces the project of mending water reservoir to LIJIANG,analyzes its feasibility in the respect of technique and financial condition,brings forward major problem of the project. The result proves the benefit of the project in the field of environment,economy society is very prominent, and the project is an engineering to realize water resource of LIJIANG reasonable utilize; for the reason to guarantee this project to bring into play its function,it is time to carry out integrate management to water resource and water environment in LIJIANG valley.  相似文献   

Finite element analysis of the LX150 motorcycle crankcase box     

WU Guo-yang  LONG Si-yuan  YANG Zhi-gang  CHEN Xiao-an  WANG Yong-gang  WU Li-hong ty  Chongqing  Chin  .College of Mechanical Engineering  Chongqing University  Chongqing  Chin 《保鲜与加工》2004,(8):11-14

The wall thickness and strengthen muscle of motorcycle crankcase box influences its structure intensity directly. The static model of crankcase box of a magnesium alloy material is established by finite element method. The structure is analyzed with I-DEAS, the reason the crankcase box is crazed is pointed out. The structure is rebuilt, the intensity is increased remarkablely, the cost of manufacture is reduced largely. And the capability of a originally material, i.e. aluminium alloy is validated.  相似文献   

Approach to Design Strategies of an Ecological Sustainable Residential Area in Beibei,Chongqing     

FAN Ya-ming  FU Xiang-zhao  WANG Yong  LONG En-shen  OUYANG Xiao-guang 《保鲜与加工》2005,(6):80-84

The residential area studied in this paper is situated on the special borderland between Beibei town and Jinyun Mountain,which is a national beauty spot and natural conservation region.In order to conserve the ecological environment of JinYun Mountain,prevent the excessive development,and promote sustainable progress of the residential area,it is suggested in this article that an ecological sustainable residential area should be designed for this area. Then this paper puts emphasis on the design strategies in following three parts:(i) protecting ecological environment,(ii) providing healthy building environment,and(iii) enhancing building energy efficiency.  相似文献   

Effects of AI, Zn Additions and T61 Heat Treatment on the Microstructure and Mechanical Properties of AM Mg Alloy     

JIANG De-ping  LONG Si-yuan  ZHU Zhi-bing  DING Yu-tao 《保鲜与加工》2006,(12):76-79

  相似文献   

Hybrid Genetic Algorithm Optimum Curve-fitting Method for Estimating the Parameters of Pearson type-Ⅲ distribution     

REN Bo-zhi  LONG Teng-rui 《保鲜与加工》2005,(4):82

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Information Technology System of Virtual Logistics Enterprise     

JIANG Da-li  LONG Yun-jun  HU Shu 《保鲜与加工》2007,(5):154-158

The conception of virtual logistics and virtual logistics enterprise are introduced,and the importance of information technology in virtual logistics organization is indicated.Then the four layer structure of the support system of virtual logistics enterprise is propaed,which are information collection technical,information share technical,information disposal technical and the theory and methods of information management.The five-layer construction of information system of virtual logistics enterprises is built.This paper can be of instructive significance to the building of the virtual logistics enterprise's information platform.  相似文献   

关于中国西部茶业可持续发展的构想     

田永辉龙明树  罗显扬梁远发 《贵州茶叶》2006,34(3):9-13

根据中国西部的特点，结合茶业的发展规律，提出了西部地区可持续发展构想。构想共分几部分。从西部地区生态、民族、区域经济、科技创新等来分析，得到文中的观点，以期促进西部地区茶业的可持续发展。  相似文献   

荣昌猪、长白猪先天免疫候选基因筛选     

龙熙  赵久刚  柴捷  潘红梅  张亮  张廷焕 《华北农学报》2021,36(z1):373-380

旨在探究影响荣昌猪和长白猪机体先天免疫功能的候选基因.以新生荣昌猪、长白猪胸腺为研究对象,利用RNA-seq分析荣昌猪、长白猪胸腺组织中的差异表达基因,同时对差异表达基因进行GO和KEGG富集分析,并通过qRT-PCR验证RNA-seq结果的准确性.结果表明:在新生荣昌猪和长白猪胸腺中,差异倍数在2倍以上的基因共421个,其中,荣昌猪相对长白猪上调的有231个,下调的有190个.GO富集分析发现,这些差异表达基因主要富集在清道夫受体活性、G蛋白偶联受体结合、T细胞活化、细胞分泌调节、胞吐作用调节、SNARE复合物组装调节等生物学过程.KEGG通路分析发现,这些差异表达基因主要参与细胞因子-细胞因子受体互作、cAMP信号、代谢(磷脂酶D、半胱氨酸和蛋氨酸)及一些疾病(非洲锥形病、癌症)相关信号通路.6个差异表达基因的RT-qPCR结果表明,此次RNA-seq的结果准确可靠.综合差异表达基因、GO和KEGG信号通路结果发现,TMSB15A和STAB2、SAA1和HP分别是荣昌猪和长白猪胸腺先天免疫的候选基因.  相似文献   

贵州黑山羊BMP15和NPY-Y1R基因多态性与产羔数关联性分析     

李平  龙清孟  李潇蒙  张芸  谭晓山  杨蓉  陈大芳  唐明宗  申金容  张云淞  曾金 《中国草食动物科学》2022,(1):41-44,60

为了寻找贵州黑山羊产羔数相关性状的分子标记,采用PCR产物直接测序技术对贵州黑山羊BMP15、NPY-Y1R基因的两个位点进行多态性检测,并与产羔数进行关联性分析.结果表明,贵州黑山羊群体BMP15基因C6260G位点存在CC、GC、GG三种基因型,频率分别为0.55、0.29、0.16;该位点的多态信息含量0.33,...  相似文献