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基于大数据的多联式空调(热泵)机组待机情况分析

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制冷与空调 2024年第6期24卷 43-46,54页

作者：陈宗衍牟桂贤刁作清申伟刚格力电器股份有限公司

基于蜂窝通信模块获取分布于全国的22.6万套多联式空调(热泵)机组(简称“多联机”)的运行情况,按照建筑气候区划、使用环境等分析多联机的待机情况。研究结果显示:多联机的平均待机率达69.2%,其中家用多联机平均待机率为74.3%,商用多联... 详细信息

基于蜂窝通信模块获取分布于全国的22.6万套多联式空调(热泵)机组(简称“多联机”)的运行情况,按照建筑气候区划、使用环境等分析多联机的待机情况。研究结果显示:多联机的平均待机率达69.2%,其中家用多联机平均待机率为74.3%,商用多联机平均待机率为56.9%,家用多联机平均待机率比商用多联机高17.4%;每台多联机平均每年待机耗电量达91.0kW·h。

关键词：多联式空调(热泵)机组耗电量待机节能

Fetch effect on the developmental process of aeolian sand transport in a wind tunnel

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Journal of Arid Land 2020年第3期12卷 436-446页

作者： chen zongyan XIAO Fengjun DONG Zhibao School of Geography and Tourism Shaanxi Normal UniversityXi'an 710119China College of Geographic Science Qinghai Normal UniversityXining 810008China

As the sand mass flux increases from zero at the leading edge of a saltating surface to the equilibrium mass flux at the critical fetch length,the wind flow is modified and then the relative contribution of aerodynamic and bombardment entrainment is *** the end the velocity,trajectory and mass flux profile will vary *** how the transportation of different sand size groups varies with fetch distance is still *** tunnel experiments were conducted to investigate the fetch effect on mass flux and its distribution with height of the total sand and each size group in *** mass flux was measured at six fetch length locations(0.5,1.2,1.9,2.6,3.4 and 4.1 m)and at three free-stream wind velocities(8.8,12.2 and 14.5 m/s).The results reveal that the total mass flux and the mass flux of each size group with height can be expressed by q=aexp(–bh),where q is the sand mass flux at height h,and a and b are regression *** coefficient b represents the relative decay *** the relative decay rates of total mass flux and each size group are independent of fetch length after a quick decay over a short *** is much shorter than that of mass *** equilibrium of the relative decay rate cannot be regarded as an equilibrium mass flux profile for aeolian sand *** mass fluxes of 176.0,209.3 and 148.0μm size groups increase more quickly than that of other size groups,which indicates strong size-selection of grains exists along the fetch *** maximal size group in mass flux(176.0μm)is smaller than the maximal size group of the bed grains(209.3μm).The relative contribution of each size group to the total mass flux is not monotonically decreasing with grain size due to the lift-off of some small grains being reduced due to the protection by large *** results indicate that there are complex interactions among different size groups in the developmental process of aeolian sand transport and more attention sh

关键词： fetch length mass flux profile grain size distribution sand transport wind tunnel experiment

Economic Analysis of using Above Ground Gas Storage Devices for Compressed Air Energy Storage System

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Journal of Thermal Science 2014年第6期23卷 535-543页

作者： LIU Jinchao ZHANG Xinjing XU Yujie chen zongyan chen Haisheng TAN Chunqing Institute of Engineering Thermophysics Chinese Academy of Sciences University of Chinese Academy of Sciences

Above ground gas storage devices for compressed air energy storage(CAES) have three types:air storage tanks,gas cylinders,and gas storage pipelines.A cost model of these gas storage devices is established on the basis of whole life cycle cost(LCC) *** optimum parameters of the three types are determined by calculating the theoretical metallic raw material consumption of these three devices and considering the difficulties in manufacture and the influence of gas storage device *** LCCs of the three types are comprehensively analyzed and *** result reveal that the cost of the gas storage pipeline type is lower than that of the other two *** study may serve as a reference for designing large-scale CAES systems.

关键词：储气设备压缩空气储能系统经济分析全寿命周期成本低成本航空公司地上 CAES

抗传染性法氏囊病毒VP2 蛋白单克隆抗体的制备及鉴定

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中国动物传染病学报 2024年第4期32卷 161页

作者：黄远玲黄聪韩靖宜韩先干陈鸿军陈宗艳舒刚四川农业大学成都625014 中国农业科学院上海兽医研究所上海200241

传染性法氏囊病(infectious bursal disease,IBD)是由传染性法氏囊病毒(Infectious bursal bursal virus,IBDV)引起的一种高度传染性疾病,以雏鸡法氏囊萎缩、腿肌出血等为特征性病变,给世界家禽产业造成重大经济损失。目前,由新型变异... 详细信息

传染性法氏囊病(infectious bursal disease,IBD)是由传染性法氏囊病毒(Infectious bursal bursal virus,IBDV)引起的一种高度传染性疾病,以雏鸡法氏囊萎缩、腿肌出血等为特征性病变,给世界家禽产业造成重大经济损失。目前,由新型变异株引起的IBD在我国呈现流行趋势。为建立基于IBDV VP2蛋白的免疫学诊断技术,本研究以新型变异毒株IBDV-LY21/2为模板,扩增其VP2基因,随后构建重组原核表达质粒pCold-Ⅰ-IBDV-VP2并转化BL21(DE3)大肠杆菌进行诱导表达,通过考马斯亮蓝染色和Western blot检测重组蛋白His-VP2的表达情况,并对其进行纯化和浓度测定。将His-VP2免疫BALB/c小鼠后,采用iELISA检测血清抗体效价,最后制备单克隆抗体并对其鉴定。结果显示,获得的重组蛋白His-VP2分子量约为50 kDa,浓度为8 mg/mL;通过两次亚克隆获得3株杂交瘤细胞株1G10F12、3E3E9、4D12G12,且重链均为IgG1型,轻链均为κ型;其中1G10F12、3E3E9可与重组蛋白Myc-VP2产生Western blot和IFA反应,而4D12G12只能与其产生IFA反应。本研究为IBD诊断方法的建立奠定了基础,同时为深入研究VP2蛋白的功能提供生物学工具。

关键词：传染性法氏囊病毒 VP2蛋白原核表达单克隆抗体

The outbreak of rabbit hemorrhagic virus type 2 in the interior of China may be related to imported semen

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Virologica Sinica 2022年第4期37卷 623-626页

作者： Ruibin Qi Chunchun Meng Jie Zhu Hang Li Qiuhong Miao Jingyu Tang Aoxing Tang Hongyuan Guo Chuncao Liu Chuanfeng Li zongyan chen Fang Wang Qinwen Zhang Guangqing Liu Innovation Team of Small Animal Infectious Disease Shanghai Veterinary Research InstituteChinese Academy of Agricultural SciencesShanghai200241China Institute of Veterinary Medicine Jiangsu Academy of Agricultural SciencesNanjing210014China Veterinary Medicine Department of Agricultural and Animal College Qinghai UniversityXining810016China

Dear Editor,Rabbit hemorrhagic disease(RHD)is a fatal infectious disease that primarily affects adult rabbits and causes great economic losses in the rabbit industry(Mitro and Krauss,1993).The causative pathogen is rabbit hemorrhagic disease virus(RHDV),which belongs to the genus Lagovirus and the family Calicivirus(Moussa et al.,1992).In 1984,RHDV was first documented in China.

关键词： rabbit Rabbit interior

Development of an MCA-Based Real Time RT-qPCR Assay for the Simultaneous Detection and Differentiation of Duck Hepatitis A Virus Types 1 and 3

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Virologica Sinica 2020年第5期35卷 666-669页

作者： Chunchun Meng Yunxiu Huang Zaib Ur Rehman Wen Hu Chuanfeng Li Ruiying Liang zongyan chen Kaijie Song Tianchao Wei Guangqing Liu Shanghai Veterinary Research Institute Chinese Academy of Agricultural SciencesShanghai 200241China College of Animal Science and Technology Guangxi UniversityNanning 530005China

Dear Editor,Duck virus hepatitis(DVH)is a significant concern in the duck industry as the disease causes a highly contagious infection in young ducklings that is often associated with liver necrosis,hemorrhage,and high mortality(Yugo et al.2016).Duck hepatitis virus(DHV)was first described in1949 on Long Island in the United ***,outbreaks have been reported in England,Canada,Germany,Japan and elsewhere(Toth 1969).

关键词： Duck duck Canada

HPLC法同时测定野菠菜中4种蒽醌类成分的含量

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中国药师 2022年第8期25卷 1452-1455页

作者：陈宗燕梁霜广西中医药大学第一附属医院药学部南宁530023

目的:建立同时测定野菠菜中芦荟大黄素、大黄素、大黄酚和大黄素甲醚含量的方法。方法:采用HPLC色谱法,色谱柱为Waters XBridge C_(18)柱(250 mm×4.6 mm,5μm),以甲醇-0.1%磷酸水溶液为流动相,梯度洗脱,流速为1.0 ml·min^(-1),检测波... 详细信息

目的:建立同时测定野菠菜中芦荟大黄素、大黄素、大黄酚和大黄素甲醚含量的方法。方法:采用HPLC色谱法,色谱柱为Waters XBridge C_(18)柱(250 mm×4.6 mm,5μm),以甲醇-0.1%磷酸水溶液为流动相,梯度洗脱,流速为1.0 ml·min^(-1),检测波长为254 nm,柱温为25℃,进样量为10μl。结果:芦荟大黄素、大黄素、大黄酚和大黄素甲醚检测质量浓度的线性范围分别为2.35~117.50μg·ml^(-1)、2.67~133.50μg·ml^(-1)、25.27~1263.50μg·ml^(-1)、5.96~298.00μg·ml^(-1)(r为0.9996~0.9998);平均加样回收率分别为99.89%,98.85%,99.75%,99.28%(RSD<2.0%,n=6)。结论:该方法简单方便,精密度、稳定性、重复性良好,可用于野菠菜中4个成分的同时测定。

关键词：野菠菜高效液相色谱法蒽醌类成分含量测定

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关于创建图书馆品牌服务窗口的思考

图书馆工作与研究 2011年第11期 20-22页

作者：陈宗炎中共安徽省委党校图书馆

本文论述了创建品牌服务窗口过程中深入挖掘图书馆的文献、人才、设施等优质资源,充分发挥图书馆的社会效益。

关键词：品牌效应图书馆服务窗口

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青海河湟谷地地名文化景观空间分布特征

首都师范大学学报（自然科学版） 2023年第6期44卷 83-91页

作者：胡晓陈宗颜青海师范大学地理科学学院青海西宁810008 青藏高原地表过程与生态保育教育部重点实验室青海西宁810008

地名是群体共有的精神记忆,承载着丰富的文化内涵,对中华优秀传统文脉的延续发展有着重要的意义。本文采用分类统计法、核密度分析法和标准差椭圆分析河湟谷地地名文化景观的空间分布特征,结果显示:(1)河湟谷地地名可以分为自然景观类... 详细信息

地名是群体共有的精神记忆,承载着丰富的文化内涵,对中华优秀传统文脉的延续发展有着重要的意义。本文采用分类统计法、核密度分析法和标准差椭圆分析河湟谷地地名文化景观的空间分布特征,结果显示:(1)河湟谷地地名可以分为自然景观类、人文景观类和其他类3个大类;(2)河湟谷地地名呈现以西宁市为中心,沿湟水、黄河和大通河等水系向周围辐散降低的方向性趋势;(3)自然景观类地名充分体现了河湟谷地先民们依山傍水、趋利避害的自然选择,折射出粗犷、朴直的自然环境;(4)人文景观类地名反映了河湟谷地多民族融合发展及地处边地要塞的特征。本文可为河湟谷地的多民族融合发展、历史人口迁移和文化传承等研究提供地名文化依据。

关键词：地名文化景观河湟谷地核密度分析标准差椭圆