OALib Journal期刊

ISSN: 2333-9721




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匹配条件: “LIU Li-zhu” ,找到相关结果约192222条。

CHEN Ping,LIU Li-zhu,

高分子学报 , 1994,
Abstract: 本文应用DSC和FTIR对2-乙基-4-甲基咪唑固化双酚A二缩水甘油醚型环氧树脂体系的固化反应机理和2-乙基-4-甲基咪唑固化双酚A二缩水甘油醚型、缩水甘油酯与脂环型环氧树脂体系的固化反应特征、动力学及其反应活性进行了研究.结果表明,双酚A二缩水甘油醚型环氧树脂/咪唑体系的固化反应是分两步独立进行的,第一步是加成反应,第二步是催化聚合反应.缩水甘油酯与脂环型环氧树脂(TDE-85)/咪唑体系的固化反应过程也分两步进行,第一阶段反应主要是缩水甘油酯型环氧基进行的加成反应和催化聚合反应,第二阶段主要是脂环型环氧基进行的加成反应.各体系第一阶段的表现反应活化能均低于第二阶段活化能.当TDE-85型环氧树脂中引入缩水甘油醚型环氧树脂后,固化反应速率均较TDE-85环氧树脂单独固化时快.
Development and validation of the Chinese Quality of Life Instrument
Kwok-fai Leung, Feng-bin Liu, Li Zhao, Ji-qian Fang, Kelvin Chan, Li-zhu Lin
Health and Quality of Life Outcomes , 2005, DOI: 10.1186/1477-7525-3-26
Abstract: The development of the ChQOL was based on the concept of health in Traditional Chinese Medicine with a theory driven approach. Based on the results of literature review, the research team developed an initial model of health which encompassed the concept of health in TCM. An expert panel was then invited to comment and give suggestions for improvement of the initial model. According to their suggestions, the model was refined and a set of initial items for the ChQOL was drafted. The refined model, together with the key domains, facets and initial items of the ChQOL were then mailed to a sample of about 100 Chinese medicine practitioners throughout Mainland China for their comments and advice. A revised set of items were developed for linguistic testing by a convenience sample consisting of both healthy people and people who attended Chinese Medicine treatment. After that, an item pool was developed for field-testing. Field test was conducted on a convenience sample of healthy and patient subjects to determine the construct validity and psychometric properties of the ChQOL.Construct validity was established by various methods, i.e. the internal consistency in all facets and domains were good; the correlation between facets to domain, and domains to overall ChQOL correlation were high; confirmatory factor analysis showed that the structure fitness of all facets, domain and overall structure were good with CFI > 0.9. Test-retest reliability was also good, especially in the domain scores with ICC value ranging from 0.83 to 0.90. No ceiling or floor effect was noted which indicated that ChQOL can be applied to subjects with a wide range of health status. Most facet scores, domain scores and the overall CHQOL scores were able to discriminate groups of subjects with known differences in health status. The ChQOL had mild positive convergence with the other generic health related QOL measures, i.e. the WHOQOL-100 and the SF-36, with moderate correlations.In conclusion, the s
New temporal error concealment method based on motion object

DING Zhi-hong,WANG Gang,LIU Li-zhu,

计算机应用研究 , 2011,
Abstract: 为了减小视频传输中的错误对解码端重建视频质量的影响,提出了一种使用于H.264的基于运动物体的时域错误隐藏算法。分析丢失宏块相邻宏块的运动矢量及灰度值分布,对平坦区域及灰度一致的运动区域先进行错误隐藏,最后对遗漏像素进行隐藏。实验表明,该算法比经典时域隐藏算法提高0.13 dB1.91 dB,能够很好地保持物体形状,减少块效应,提高了恢复质量。
Logo Recognition Based on Membership Degree and Clossness Degree of Fuzzy Sets

WANG Gang,JIN Yan-qing,LIU Li-zhu,

计算机科学 , 2009,
Abstract: Fuzzy information theory which is based on fuzzy theory is a departure from information science. Higher performance could be obtained in pattern recognition with fuzzy sets theory. People combined fuzzy sets theory with pattern recognition and established
Survey of research on anonymilization technology in data publication

LIU Yu,FENG Jian-hua,ZHOU Li-zhu,

计算机应用 , 2007,
Abstract: Anonymilization, as known to all, is a good method to solve the leakage of confidential information, once after it was proposed. The research on anonymilization technology can be divided into two categories, one on the generalization principle, and the other on the implementation ways. In this paper, we gave an overview study of the status quo and trend of the research, and discussed the open and challenging problems in anonymilization technology.
A Model of Mobile Real-time Transactions

DANG De-Peng,ZHOU Li-Zhu,LIU Yun-Sheng,

计算机科学 , 2005,
Abstract: Considering the inherent characteristics of mobile computing environments, moving of database access, and the deadlines of mobile real-time transactions, in this paper, a better transaction model is given.
Fast Asian Script Identification Based on Multi-feature

WANG Gang,JIN Yan-qing,LIU Li-zhu,CHU Rui-lai,

计算机科学 , 2013,
Abstract: 针对目前基于统计特征和符号匹配的识别方法对字体较敏感的问题,提出一种基于多特征融合的东亚文种识别算法。该算法首先分析并提取高频形状特征、排版特征以及字符复杂度特征,然后采用模糊集贴近度准则进行识别。实验结果表明,该算法具有较高的识别准确率,并对不同字体具有较强的鲁棒性。
Methyl 3-aminobut-2-enoate
Xiao Wang,Li-Zhu Zhang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s160053681202288x
Abstract: The title compound, C5H9NO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.036 ) and an intramolecular N—H...O hydrogen bond generates an S(6) ring. In the crystal, N—H...O interactions link the molecules into C(6) chains propagating along [010].
神经肌肉性疾病患者线粒体DNA突变的分析 Analysis on the Mitochondrial DNA of Patients with Neuromuscular Diseases
魏丽珠,伏洁,刘光陵,王晓燕,王兆全WEI Li-zhu,FU Jie,LIU Guang-ling,WANG Xiao-yan,WANG Zhao-quan
遗传 , 1999,
Abstract: 为了探讨神经肌肉性疾病的发病与线粒体DNA突变的关系,采用PCR技术检测了 20例患有不同神经肌肉性疾病儿童的外周血和骨骼肌细胞中的线粒体DNA(mtDNA),发现其中6例患儿有mtDNA缺失,其中1例至少有2968bp片段的缺失, 另5例至少有2000bp片段的缺失,此缺失区位于线粒体呼吸链复合物1、 4、5、编码区,表明该突变对神经肌肉性疾病的发生有一定作用。 Abstract:To understand the relation to mechanism of neuromuscular disease and mtDNA mutation,using PCR technique,we investigated blood and /or skeletal muscle of 20 patients with neuromuscular diseases.A deletion in the length of 2000~2968bp was found in blood mitochondrial DNA of 6 patients with neuromuscular disease.The deletion region partially lies in the coding region of resoiratony chain complex 1,4,5.It is suggested that this mutation ois related with neuromuscular diseases.
200对孕期夫妇产前细胞遗传学检查 Cytogenetic Study of 200 Couples with Pregnancy
魏丽珠,崔英霞,刘松君,耿建祥,徐建平WEI Li-Zhu,CUI Ying-Xia,LIU Song-Jun,GENG Jian-Xiang,XU Jian-Ping
遗传 , 1993,
Abstract: 对象、方法与结果 1989年4-12月,对南京市城区200对来院建卡的孕妇及其配偶,取外周血制备染色体,G显带分析,每例计数39个中期分裂相,分析3个核型.200对夫妇中发现6对夫妇之一方染色体异常(见表1).其余196对核型正常。对该6例的子女进了随访及染色体分析,结果见表1。

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