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Joint Distribution of Wave Heights and Wavelengths and Distribution of Wave Steepness

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China Ocean Engineering 1999年第2期14卷 145-154页

作者： Zheng, GZ liu, xh Xu, DL Ocean Univ Qingdao Phys Oceanog Lab Qingdao 266003 Peoples R China

A joint probability density is derived for wavelengths and wave heights. It is asymmetric and depends only on the spectral bandwidth epsilon defined by Cartwright and Longuet-Higgins (1956). After that a theoretical probability density for wave steepness is obtained. It tends to Rayleigh distribution as epsilon --> 0. A comparison between theoretical steepness distribution and laboratory experiment result shows good agreement.

关键词： wave height wavelength wave steepness probability density

Fabrication and electrochemical behaviors of thin film three electrode-measurement unit with microdisk array as working electrode

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Chinese Journal of Chemistry 1995年第6期13卷 504-509页

作者： Zhu, JH liu, xh Lu, XG Lin, SR CHINESE ACAD SCI SHANGHAI INST METSHANGHAI 200050PEOPLES R CHINA

A three electrode-measurement unit with 33 microdisk electrode-array (MDA) as working electrode was constructed by lithograpy. Its electrochemical behavior was observed. The results of the oxidation of ferrocene in CH3CN-H2O mixed media demonstrate that high quality electrochemical data for the system without supporting electrolyte can be achieved with the MDA unit constructed in the present work.

关键词： microdisk array ferrocene highly resistive media

SURFACE　INTEGRAL　OF　THREE－DIMENSIONAL　VELOCITY　FIELD　FOR　SQUARE　BAR　DRAWING　THROUGH　CONICAL　DIE

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中国有色金属学会会刊：英文版 1996年第3期6卷 131-135页

作者： Zhao, DW Guo, CW liu, xh Fang, YK NORTHEASTERN UNIV ROLLING TECHNOL & TANDEM ROLLING AUTOMAT NATL KEY SHENYANG 110006 PEOPLES R CHINA UNIV FREIBURG INST ANGEW MATH D-7800 FREIBURG GERMANY

ＳＵＲＦＡＣＥＩＮＴＥＧＲＡＬＯＦＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬＶＥＬＯＣＩＴＹＦＩＥＬＤＦＯＲＳＱＵＡＲＥＢＡＲＤＲＡＷＩＮＧＴＨＲＯＵＧＨＣＯＮＩＣＡＬＤＩＥ￥ＺｈａｏＤｅｗｅｎ；ＧｕｏＣｈａｎｇｗｕ；Ｌｉｕ... 详细信息

ＳＵＲＦＡＣＥＩＮＴＥＧＲＡＬＯＦＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬＶＥＬＯＣＩＴＹＦＩＥＬＤＦＯＲＳＱＵＡＲＥＢＡＲＤＲＡＷＩＮＧＴＨＲＯＵＧＨＣＯＮＩＣＡＬＤＩＥ￥ＺｈａｏＤｅｗｅｎ；ＧｕｏＣｈａｎｇｗｕ；ＬｉｕＸｉａｎｇｈｕａ（ＲｏｌｌｉｎｇＴ...

关键词： square bar drawing three dimensional velocity field surface integral

A NEW BICOUMARIN FROM PLEUROSPERMUM RIVULORUM (DIELS)

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Chinese Chemical Letters 1995年第5期6卷 385-386页

作者： Xiao, YQ liu, xh Baba, K Taniguchi, M Chinese Acad Tradit Chinese Med Inst Chinese Meteria Med Beijing 100700 Peoples R China Osaka Univ Pharmaceut Sci Osaka 580 Japan

From the BtOAc extract of the underground parts of Pleurospermum rivulorum (Diels), a new bicoumarin, rivulobirin was isolated along with eight known furocoumarins.

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SYNTHESIS　AND　ANTI－HUMAN　IMMUNODEFICIENCY　VIRUS－1（HIV－1）　ACTIVITY　OF　9－（2－PHOSPHONYLMETHOXYETHYL）ADENINE　（1）AND　ITS　REGIOISOMER　3－（2－PHOSPHONYLMETHOXYETHYL）ADENINE（2）

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Chinese Chemical Letters 1995年第8期6卷 669-672页

作者： liu, xh Wang, L Guan, BH Kong, M Zhang, XQ Tao, PZ Chen, HS Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Beijing Union Med Coll Beijing 100050 Peoples R China Chinese Acad Med Sci Inst Med Biotechnol Beijing 100050 Peoples R China

We have synthesized the title compounds(1)and(2).The structure of regioisomer(4).a new acyclic nucleotide,was determined by spectroscopic methods (1H-NMR.13C-NMR.13C-1H HMBC).A by-product(7)was also isolated and ident...

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First-principles simulations of iron with nitrogen:from surface adsorption to bulk diffusion

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功能材料信息 2013年第4期10卷 8-21页

作者： MH Wu xh liu 顾剑锋 ZH Jin School of Materials Science and Engineering Shanghai Jiao Tong University

Adsorption,absorption and diffusion pathways of nitrogen are studied for ferromagnetic body-centered cubic iron via spin-polarized density functional theory in combination with the climbing image nudged elastic band *** computed data suggest that,depending on the coverage of N atoms,N prefers to stay on particular surface *** pinned down well below the surface,N prefers to move into octahedral interstices rather than tetrahedral ***,the tetrahedral interstices are crucial because they act as transition states and yield the saddle point energies of the corresponding minimum energy *** comparison with carbon,we found that nitrogen prefers a different pathway from the(1 0 0)surface to the subsurface due to its strong repulsive interaction with Fe ions.

关键词：氮铁磁体立方铁密度泛函理论

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下肢矫形器在瘫痪康复中的应用

中国组织工程研究与临床康复 2007年第31期11卷 6252-6255页

作者：刘晓红辽宁省残疾儿童康复中心辽宁省沈阳市110015

目的:通过分析下肢矫形器在脑性瘫痪、偏瘫、截瘫康复治疗中应用的意义,探讨瘫痪康复的有效途径,指导临床实践,帮助瘫痪患者早日回归家庭与社会。资料来源:应用计算机检索中国学术期刊全文数据库2001-01/2006-12与矫形器的研制和应用相... 详细信息

目的:通过分析下肢矫形器在脑性瘫痪、偏瘫、截瘫康复治疗中应用的意义,探讨瘫痪康复的有效途径,指导临床实践,帮助瘫痪患者早日回归家庭与社会。资料来源:应用计算机检索中国学术期刊全文数据库2001-01/2006-12与矫形器的研制和应用相关的文献,检索词为"下肢矫形器,瘫痪,康复",并限定文献语言为中文。同时手工检索有关专著。资料选择:对资料进行初审,选择纳入标准:①下肢矫形器的种类、用处。②下肢矫形器在瘫痪康复治疗中应用的效果。③下肢矫形器的改进和发展。排除标准:重复性研究。资料提炼:共收集到57篇关于下肢矫形器的研制及其在瘫痪康复中的应用的相关报道,排除31篇重复性研究和其他种类矫形器的研究文献,26篇符合纳入标准。资料综合:下肢矫形器作为一种重要的辅助手段,在脑性瘫痪、偏瘫和截瘫等常见瘫痪性疾病的康复过程中对提高膝踝关节的控制能力、增强膝踝关节的稳定性、纠正膝反张、膝屈曲、尖足、足内外翻等异常步态、提高行走能力和日常生活活动能力起到积极的促进作用。新型下肢矫形器的研制与应用使有潜能的患者更大程度地提高了行走能力。结论:下肢矫形器作为重要的康复辅助器具,已广泛应用到各种瘫痪的康复治疗中。应用下肢矫形器对改善患者的步态、提高行走能力并进一步提高患者的生活自理能力具有重要的意义。下肢矫形器的改进和应用值得进一步研究。

关键词：矫形器瘫痪康复综述文献

类胰岛素样生长因子1对3T3-L1前脂肪细胞增殖、分化的作用

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中国组织工程研究与临床康复 2007年第20期11卷 3984-3987页

作者：刘秀华湖州师范学院医学院浙江省湖州市313000

目的:证实类胰岛素样生长因子1对3T3-L1前脂肪细胞增殖、分化的作用,并摸索该细胞因子对3T3-L1前脂肪细胞增殖、分化作用的最佳质量浓度。方法:实验于2004-03/2004-07在辽宁医学院科学实验中心完成。实验材料:小鼠胚胎3T3-L1前脂肪细胞... 详细信息

目的:证实类胰岛素样生长因子1对3T3-L1前脂肪细胞增殖、分化的作用,并摸索该细胞因子对3T3-L1前脂肪细胞增殖、分化作用的最佳质量浓度。方法:实验于2004-03/2004-07在辽宁医学院科学实验中心完成。实验材料:小鼠胚胎3T3-L1前脂肪细胞株由ATCC提供,购于上海中科院生命科学院;类胰岛素样生长因子1购于美国Biological公司。实验方法:对照组为标准的高糖DMEM培养基,实验组为含有1,5,10,20,50,100μg/L类胰岛素样生长因子1的高糖DMEM培养基。用含体积分数为0.1胎牛血清的高糖DMEM培养基在37℃、体积分数为0.05 CO2的孵箱内培养3T3-L1前脂肪细胞,每48h换液1次。实验评估:在倒置显微镜下观察类胰岛素样生长因子1作用前后3T3-L1前脂肪细胞的生长情况及形态学改变。待细胞铺满瓶底后,应用流式细胞仪检测细胞周期,应用噻唑蓝法测定3T3-L1前脂肪细胞增殖率:增殖率=实验组A值/对照组A值×100%,采用油红O染色提取法测定3T3-L1前脂肪细胞内脂肪含量增长率:增长率=实验组B值/对照组B值×100%。结果:①倒置显微镜下观察分化前3T3-L1前脂肪细胞呈梭形,胞浆内无脂滴,分化后3T3-L1前脂细胞呈圆形,胞浆内含有大量的脂滴,脂滴聚集于核周,被油红O染成橙红色,形成“戒环”样的形态。②噻唑蓝法检测结果和油红O染色提取法检测结果均显示,不同质量浓度类胰岛素样生长因子1对3T3-L1前脂肪细胞增殖、分化的作用,与空白对照组相比差异显著[培养1d:(1.18±0.02)%,(1.29±0.01)%,(1.35±0.03)%,(1.47±0.04)%,(1.46±0.03)%,(1.47±0.05)%,(1.00±0.01)%;培养2d:(1.40±0.03)%,(1.56±0.04)%,(1.67±0.02)%,(1.82±0.05)%,(1.81±0.02)%,(1.82±0.09)%,(1.00±0.01)%,P<0.05],20μg/L类胰岛素样生长因子1对3T3-L1前脂肪细胞增殖、分化的作用最为明显(P=0.0382);流式细胞仪分析结果与噻唑蓝法及油红O染色提取法基本一致。结论:体外细胞培养实验表明,类胰岛素样生长因子1对3T3-L1前脂肪细胞的增殖、分化有明显促进作用,其促进作用与质量浓度并非正比,而是达到一定的质量浓度后,其促进作用不再增加,而这个质量浓度接近本实验的最佳质量浓度值,即20μg/L。

关键词： 3T3细胞脂肪细胞胰岛素样生长因子1 细胞培养组织工程

Valorization of Camellia oleifera oil processing byproducts to value-added chemicals and biobased materials: A critical review

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Green Energy & Environment 2024年第1期9卷 28-53页

作者： Xudong liu Yiying Wu Yang Gao Zhicheng Jiang Zicheng Zhao Wenquan Zeng Mingyu Xie Sisi liu Rukuan liu Yan Chao Suli Nie Aihua Zhang Changzhu Li Zhihong Xiao State Key Laboratory of Utilization of Woody Oil Resource Hunan Academy of ForestryChangsha410004China Key Laboratory of State Forestry and Grassland Administration on Utilization Science for Southern Woody Oil Resource Hunan Academy of ForestryChangsha410004China Hunan Provincial Key Laboratory of Oils and Fats Molecular Structure and Function Changsha410004China State Key Laboratory of Separation Membranes and Membrane Processes College of ChemistryTiangong UniversityTianjin300387China College of Biomass Science and Engineering Sichuan UniversityChengdu610065China College of Mechanical Engineering and Mechanics Xiangtan UniversityXiangtan411105China

The *** oil processing industry generates large amounts of solid wastes,including *** shell(COS)and *** cake(COC).Distinct from generally acknowledged lignocellulosic biomass(corn stover,bamboo,birch,etc.),Camellia wastes contain diverse bioactive substances in addition to the abundant lignocellulosic components,and thus,the bioreﬁnery utilization of *** processing byproducts involves complicated processing *** reviewﬁrst summarizes various technologies for extracting and converting the main components in *** oil processing byproducts into value-added chemicals and biobased materials,as well as their potential ***,ultrasound,and Soxhlet extractions are compared for the extraction of functional bioactive components(tannin,ﬂavonoid,saponin,etc.),while solvothermal conversion and pyrolysis are discussed for the conversion of lignocellulosic components into value-added *** application areas of these chemicals according to their properties are introduced in detail,including utilizing antioxidant and anti-in-ﬂammatory properties of the bioactive substances for the speciﬁc application,as well as drop-in chemicals for the substitution of unrenewable fossil fuel-derived *** addition to chemical production,biochar fabricated from COS and its applications in theﬁelds of adsorption,supercapacitor,soil remediation and wood composites are comprehensively reviewed and ***,based on the compositions and structural characteristics of *** byproducts,the development of full-component valorization strategies and the expansion of the appli-cationﬁelds are proposed.

关键词： Camellia oleifera shell Camellia oleifera cake Value-added chemicals Bioactive components Biobased materials