如何优化网站结构   总被引：3，自引：0，他引：3  

韩义 《天津电大学报》2005,9(3):39-41

网站结构对于网站的制作和运行至关重要。优化的网站结构包括层次清晰的目录结构，合理的文件存储，高速的链接和导航，美观的布局和有特色的网站内容。  相似文献   

Motion characteristics of novel floating foundation for offshore wind turbine     

李嘉文  唐友刚  王宾 《天津大学学报(英文版)》2016,22(1):57-63

A novel floating foundation to support the NREL offshore 5 MW wind turbine was designed conceptually by combining the characteristics of barge and Spar. The main focus was structural design and hydrodynamic modelling. Based on this novel floating foundation, the hydrodynamic performance was investigated in the frequency domain and time domain by using the wave analysis software HydroD and DeepC from Det Norske Veritas. The frequency domain analysis was conducted to investigate the effects of the incident wave angle and water depth. The time-domain analysis was carried out to evaluate the response of the floating foundation under a selected operational condition. The hydrodynamic performances of this floating foundation with respect to time series and response spectra were also investigated in this study.  相似文献   

重庆四面山常绿阔叶林群落的排序与环境解释     

汪建华  叶林奇 《涪陵师范学院学报》2001,17(2):83-87

本文通过对重庆四面山常绿阔叶林群落的ＮＭＤＳ排序，研究了该区植物群落分布与环境之间的相互关系，并应用植物群落的排序值与环境因子的多元回归分析给出了植物群落类型与生态梯度的定量环境解释。结果表明：ＮＭＤＳ排序较好地反映了植物群落与环境的变异。四面山常绿阔叶林群落类型及分布主要取决于海拔高度和土壤含水量，并可通过与环境参数的回归模型定量地确定。  相似文献   

Tandem Biocatalysis by CotA-TJ102@UIO-66-NH2 and Novozym 435 for Highly Selective Transformation of HMF into FDCA     

Chang  Xin  Zhang  Chengyu  Gao  Lan  Liu  Xiao  You  Shengping  Qi  Wei  Wang  Kang  Guo  Xin  Su  Rongxin  Lu  Han  He  Zhimin 《天津大学学报(英文版)》2019,25(5):488-496

2,5-Furandicarboxylic acid(FDCA) is a potential biorenewable chemical for applications including plastics, polyamides, drugs, etc. The selective biosynthesis of FDCA from 5-hydroxymethylfurfural(HMF) by a specific enzyme poses a great challenge. In this study, we reported an efficient strategy to produce FDCA from HMF by the tandem biocatalysis of laccase(Cot A-TJ102@UIO-66-NH_2) and Novozym 435. For the first step, a nanoparticle metal–organic framework was synthesized as a carrier to immobilize Cot A-TJ102@UIO-66-NH_2, which was assigned for the production of 5-formyl-2-furancarboxylic acid(FFCA) and featured an enzyme loading of 255.54 mg/g, specific activity of 135.90 U/mg, and solid loading ratio of 99.65%. Under optimal conditions, an ideal FFCA yield of 98.5% was achieved, and the Cot A-TJ102@UIO-66-NH_2 presented a high recycling capacity after 10 cycles. For the second step, Novozym 435 was applied for the further conversion of FFCA into FDCA, presenting a high FDCA yield of 95.5% under the optimized conditions. Novozym 435 also exhibited a high recyclability after eight cycles. As a result, the tandem biocatalysis strategy provided a 94.2% FDCA yield from HMF, indicating its excellence as a method for FDCA production.  相似文献   

中国近代私立大学获得社会捐助的原因分析     

王彦才 《高等工程教育研究》2007,17(4):91-95

与公立大学的经费主要靠政府拨款不同,中国近代私立大学的经费来源于多方面,其中捐款占有相当重要的地位.近代私立大学得到社会捐助主要有以下几个原因:人们思想观念的转变、政府的鼓励、经济的发展及中外交往等.  相似文献   

新时期改进党的执政方式的法律思考     

王琳琳 《绥化学院学报》2003,23(4):41-44

中国共产党作为我国的执政党，其执政方式的确立及演变有一个历史过程，取决于各方面的因素。在新的历史条件下，也要适应国情和社会环境的变化而不断的改进，从而使党的领导效能趋向优化，更快的把我们国家带入现代化社会。本文就试图从法律角度来研究我党执政方式的演变与改进，更好的推进依法治国方略的贯彻实施。  相似文献   

Symmetric alteration of four knots of B-spline and NURBS surfaces     

LI Ya-juan WANG Guo-zhao 《浙江大学学报(A卷英文版)》2006,7(6):1084-1087

INTRODUCTION Modification of knots of a B-spline curve changes the shape of the curve. In some recent pub-lications (Juhász and Hoffmann, 2001; 2003; Hoff-mann and Juhász, 2004; Li and Wang, 2005), the authors studied the effect of the alteration of a single knot on the shape of the curve. Hoffmann (2004) and Li & Wang (2006) applied these theories into the constrained shape modification of B-spline and NURBS curves. Juhász (2001) and Hoffmann & Ju-hász (2005) studied the effe…  相似文献   

理智与情感的共融——手机金属材质的隐喻表达     

王小妍 《宁波广播电视大学学报》2007,5(1):95-96,118

没有感情的设计是空洞的,没有理智的设计是无用的,有情感有理智的设计才是完整的设计。金属材质的手机以理性、功能化为前提,适应了现在追求是科技的理念,又不失给人情感内在、广义的想象空间,顺应了时尚的潮流。将金属作为其材质的手机述说了引起世人共鸣的语言,它是属于一种内在的、广义的语言。情感品质所追求表达的是与人的经验类似的东西,手机的金属材质看似理智的一种设计,但给人一种想象的空间,有着情感化的语言,看似理智与情感的矛盾,却又那么协调的共融。  相似文献   

对高职高专经贸类专业课程整合的思考   总被引：2，自引：0，他引：2  

王金台 《中国职业技术教育》2005,(19):28-30

高职经贸类专业必须按照培养目标要求,坚持以就业为导向、以能力为本位的原则进行课程整合,从而使经贸人才的培养与市场需求相吻合.  相似文献   

日本留学生与政论文学     

王少杰 《新疆教育学院学报》2003,19(4):59-63

政论学以日本留学生的创作为世纪先锋，奠定了中国人社科的激进传统。留学生政论学试图构思爱国主义的正面理论，并且释放新民政治的强烈变革感情．提倡积极参与政治管理的人精神，是中国集权体制和官本位化社会所欠缺的。  相似文献