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Search Results: 1 - 10 of 163754 matches for " 周明 "
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齐璜鹰作价值悖论
Qi Huang Works the Value of a Drawing an Eagle
 [PDF]


Art Research Letters (ARL) , 2012, DOI: 10.12677/arl.2012.11001
Abstract:

鹰是齐璜常画的题材之一。中国嘉德2011春季拍卖会上,齐璜一幅鹰图《松柏高立图·篆书四言联》拍到4.255亿元,创下了中国近现代书画新纪录,引起了世人的关注。本文从齐璜画鹰的临摹、写生、创作、款题、寓意等艺术语言入手,考证了其鹰作的心路历程,揭示出了齐璜鹰作美学价值与经济价值的悖论关系。
Eagle is one of Qi Huang’s favorite subjects. At the The Jiade 2011 Spring Auction, Qi Huang’s picture: picture of standing pine, Zhuanshu couplet hammered 425.5 million yuan, creating a record in modern Chinese calligraphy and painting auction, which has drew concern all over the world. This essay, from the perspective of his copying of the eagle, sketching, creation of the picture, allegoric and art language, exams Qi’s producing process as a way to show the contradiction between esthetic value and economic value.

社会资本缓解中小企业融资约束的实证研究
Empirical Research on the Effects of Social Capital Ease SMEs Financing Constraints
 [PDF]


Advances in Social Sciences (ASS) , 2015, DOI: 10.12677/ASS.2015.44050
Abstract:
在经济下行压力下中小企业融资难问题更加突显,本文从社会资本的视角探析缓解中小企业融资约束的路径。本文将企业社会资本归纳为对企业融资和发展起支持作用的各种资源,并进一步划分为企业组织、企业个人社会资本,利用问卷调查数据进行实证研究。研究表明,中小企业可持续发展能力弱,正规金融不能满足融资需求,企业的组织社会资本和个人社会资本的有机结合,将有利于改善中小企业融资。当前应着力培育中小企业融资意识,积淀网络关系,拓宽信息交流平台,打通中小企业外源、多元融资通道。
The issue of SMEs’ financing becomes more prominent under the period of economic downturn. ?This paper studies the path to ease financing constraints of SMEs from the perspective of social capital. In this article the social capital is summarized as various resources supporting the financing and development of a corporation, which can be further divided into organizational social capital and personal social capital, and the survey data is used to conduct empirical research. Research shows that the sustainable development of SMEs is weak and can not meet the financing needs of the formal financial; organic combination of organizational social capital and personal social capital of the companies will help to improve SME financing. Currently we should focus on cultivating awareness of SME financing, accumulation Network relationship, broadening information exchange platform, and opening up SMEs exogenous and diversified financing channels.
高速电主轴矢量控制与直接转矩控制仿真及分析
Simulation and Analysis of Vector Control and Direct Torque Control for High-Speed Motorized Spindles
 [PDF]

, 陈小安
Mechanical Engineering and Technology (MET) , 2012, DOI: 10.12677/met.2012.12002
Abstract: 矢量控制和直接转矩控制是高速电主轴的高性能驱动控制方法,其控制性能对高速电主轴的加工质量有重要影响。为了研究高速电主轴的矢量控制、直接转矩控制以及它们之间的差异,本文根据其控制基本方程,分别建立一个矢量控制仿真模型和一个直接转矩控制模型,对额定转速为15,000转的170MD15Y20型高速电主轴进行了矢量控制和直接转矩控制仿真,并对仿真结果进行了分析、对比,最后总结了矢量控制和直接转矩控制的特点。
Vector control (VC) and Direct torque control (DTC) are both high-performance drive control methods for high-speed motorized spindles, and their control performances have a significant impact on the machining quality of the spindle. To study VC, DTC and their comparison on high-speed motorized spindles, according to their basic control equations, a VC model and a DTC model are constructed respectively to carry out VC and DTC simulation on a type 170MD15Y20 high-speed motorized spindle, whose rated speed is 15,000 rpm. The simulation results are analyzed and compared, and the features of VC and DTC are summarized.

 

防雷减灾管理存在的问题
Existing Problems of Lightning Protection and Disaster Reduction Management
 [PDF]

李明军,
Modern Management (MM) , 2014, DOI: 10.12677/MM.2014.42002
Abstract:

我国各地防雷工作基本形成了分级管理的模式。但是,还有极少数省、市、县气象局还没有成立防雷安全管理机构(防雷办或防雷中心)或防雷技术服务机构。在实际工作中,不得不由气象主管机构来开展工作,造成既当裁判,又是运动员的尴尬局面。在我国从事防雷产品生产、经销的厂商多达数千家,每家都声称自己的产品“质量最优”,一些从未测试过的技术数据赫然印在产品广告上,甚至产品技术数据远高于所主要采用的零部件数据,企图以此来取得市场份额,实际上扰乱了防雷产品市场。
Our country has basically formed the lightning protection classification management mode. How-ever, there are a few Bureaus of Meteorology of the provinces, cities or counties that have not yet set up mine safety management organization (lightning or lightning protection center) or light- ning protection technology services. In practical work, the meteorological departments have to carry out the work, which caused the embarrassing situation of being the referee and athlete at the same time. In China, thousands of companies engaged in mine production, each claims their products have the “best quality”, some data never tested were printed on the product advertising, and product technical data are much higher than the data used as the main component, in an attempt to gain market share, which in fact disrupts the lightning protection products market.

一种新型阀门电动装置

自动化学报 , 1982,
Abstract: ?本文介绍了一种新型阀门电动装置的设计特点及应用情况.新型阀门电动装置具有高精度的转矩限制、行程控制机构,能根据所控对象阀门的动力特性提供不同转矩,具有功能齐全、灵活可变的控制电路,采用半自动的"手动-电动"切换机构、低手动速比、专用电动机等.性能良好,工作可靠.
国外木材防腐现状、发展趋势及我国的对策

世界林业研究 , 1992,
Abstract: 世界各国普遍重视木材防腐工作。70年代以来,发展中国家的木材防腐发展迅速。当今世界木材防腐的发展趋势为:防腐品种趋向多样化,保护剂向高效、低毒或无毒的方向发展,处理技术不断提高。我国的木材防腐数量小、品种少、差距大。作者提出了发展我国木材防腐的对策。
藻红蓝蛋白裂合/异构酶e基因的c端缺失突变

武汉理工大学学报 , 2003,
Abstract: ?采用pcr技术,扩增藻红蓝蛋白裂合/异构酶e基因(pece)部分dna片段,从而获得pece基因c端缺失69bp的dna片段(pecec),该pecec大小为705bp。把pecec插入pbluescript的多克隆位点得到重组质粒pblu-pecec,经dna序列测定证实诱变成功。然后将pecec亚克隆于表达载体pet30,酶切鉴定pecec已正确插入到该表达载体中(pet-pecec)。将表达质粒pet-pecec转化ecolibl21(de3),细胞经iptg诱导,获得了高效表达,表达蛋白质的分子量为30kd,与预期吻合
带跨膜片段的α-pec的分子构建

武汉理工大学学报 , 2006,
Abstract: ?通过分子设计构建一段来自人红细胞膜上的血型糖蛋白a(glycophorina,gpa)中的跨膜片段基因,并连接到藻红蓝蛋白基因片段(peca)的n端,将融合基因插入到表达载体pet30a进行表达。表达产物以包涵体形式存在,通过优化条件使其溶解,并与藻蓝胆素pcb在裂合异构酶pece/pecf催化下进行体外重组,通过可逆光致变色活性大小确定包涵体溶解的最佳条件。结果表明,超声后的细胞加入终浓度8mol/l尿素,0.2%tritonx-100和一定量的pece和pecf,透析时采用含0.2%tritonx-100的尿素梯度透析可使重组活性最高。研究为可逆光致变色生物材料在生物光电材料中的应用打下了基础。
基于电力线载波的道路照明物联网技术
Internet of Things in the Street Lighting Using PLC Technologies
 [PDF]

, 金鹏, 詹文平
Smart Grid (SG) , 2013, DOI: 10.12677/SG.2013.31001
Abstract:
本文分析了电力线载波技术和物联网的基本特征,提出了一个完整的基于电力线载波技术的道路照明物联网模型;详细介绍了此模型的原理、架构和基本功能要求,并针对其中的一些重要功能,给出了其设计和实现。结合LED和电力线载波的物联网道路照明在技术、标准和市场上日趋成熟,也代表了城市道路照明技术和管理模式的发展方向。
This paper introduces the basic features of Power Line Carrier technologies (PLC) and the Internet of Things (IOT), and brings up an integrated street-lighting IOT model basing on PLC. The paper also gives a thorough analysis of this model including its principles, network mapping, basic functionalities, and implementations to some key features. It concludes that combining LED and PLC technologies for the smart street lighting is right way to go basing on matur-ing technologies and coming standardizations.
犬右眼外眼角皮肤黑色素肿瘤1例
A Case of Canine Cutaneous Melanoma in the Outer Corners of Right Eye
 [PDF]

康静静, 向梅, 赵德
Asian Case Reports in Veterinary Medicine (ACRPVM) , 2013, DOI: 10.12677/ACRPVM.2013.21002
Abstract:
1例犬右眼外眼角皮肤黑色素瘤病例。患病动物为去势9岁半德国牧羊犬,发现右眼外眼角处有一小米粒大小肿块,送医就诊。经手术切除肿块,眼观呈黑褐色,质地坚硬,切除组织固定后送检,常规H&E染色后,组织学检查结果发现肿块表皮结构完整,肿瘤细胞浆内有大量黑色素沉积。诊断为皮肤黑色素瘤。
A case of canine cutaneous melanoma in the outer corners of right eye is reported. A 9 and a half years old castration German shepherd dog presented with a firm subcutaneous nodule in the outer corners of right eye. Histopathological examination showed the skin structure of the mass is complete, and there were abundance melanin deposition in the cytoplasm of tumour cells. These findings were consistent with all melanoma.
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