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双通道光纤气压传感器系统设计

量子电子学报 2008年第5期25卷 634-638页

作者：肖韶荣贲富来朱平张波南京信息工程大学电子与信息工程学院江苏南京210044

介绍了一种新型双通道光纤气压测量系统的原理和结构组成。该系统由双通道光纤位移传感器和高精度金属膜盒组成,用光纤位移传感器检测气压变化引起的膜盒自由表面的位移。气压测量系统的输出特性参数与系统光源的光强无关,只取决于系统... 详细信息

介绍了一种新型双通道光纤气压测量系统的原理和结构组成。该系统由双通道光纤位移传感器和高精度金属膜盒组成,用光纤位移传感器检测气压变化引起的膜盒自由表面的位移。气压测量系统的输出特性参数与系统光源的光强无关,只取决于系统气压传感部件的结构参数。系统的信号处理电路包括光信号前置放大电路、窄带滤波电路、真有效值转换电路以及A/D转换和单片机电路。根据实验测定的系统输出特性,该系统的测量精度达到±0.1 hPa,分辨率小于0.2 hPa。

关键词：纤维与波导光学气压测量光纤传感器真有效值转换单片机应用

Laser irradiation induced spectral evolution of the surface-enhanced Raman scattering(SERS) of 4-tert-butylbenzylmercaptan on gold nanoparticles assembly

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Science China Chemistry 2007年第4期50卷 520-525页

作者： TONG LianMing zhu Tao LIU ZhongFan Center for Nanoscale Science and Technology College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

The spectral evolution of the surface-enhanced Raman scattering (SERS) of 4-tert-butylbenzylmer-captan (4-tBBM) on gold nanoparticles assembly under laser irradiation is reported. The relative intensities of typical peaks in the spectrum of 4-tBBM gradually change with irradiation time. Comparison of the rate of spectral changes under several experimental conditions indicates that the surface plasmon resonance (SPR) induced heat in the gold nanoparticles assembly is the origin of the spectral evolution. During the process of self-assembly, 4-tBBM molecules do not form a compact ordered monolayer because of the spatial hindrance of the 4-tert-butyl end group. The heat induced by laser irradiation drives the 4-tBBM molecules to rearrange to a more stable orientation.

关键词： surface-enhanced Raman scattering(SERS) spectral evolution surface plasmon resonance(SRP) thermal effect

Solving the Nonlinear Variable Order Fractional Differential Equations by Using Euler Wavelets

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Computer Modeling in Engineering & Sciences 2019年第2期118卷 339-350页

作者： Yanxin Wang Li zhu Zhi Wang School of Science Ningbo University of TechnologyNingboChina.

An Euler wavelets method is proposed to solve a class of nonlinear variable order fractional differential equations in this *** properties of Euler wavelets and their operational matrix together with a family of piecewise functions are first *** they are utilized to reduce the problem to the solution of a nonlinear system of algebraic *** the convergence of the Euler wavelets basis is *** method is computationally attractive and some numerical examples are provided to illustrate its high accuracy.

关键词： Euler wavelets variable order fractional differential equations caputo fractional derivatives operational matrix convergence analysis.

Research on the Development of National Traditional Sports Events on the Tibetan Plateau under the “One Belt and One Road” Initiative

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Research on the Development of National Traditional Sports E...

T lymphocytes in the intestinal mucosa: defense and tolerance

第六届中国多巴高原训练与健康国际研讨会暨第二届高原科学与可持续发展分论坛

作者： ping zhu Yacheng zhu School of Physical Education,Xizang Minzu University

Purpose:General Secretary Xi Jinping delivered a speech in Kazakhstan and Indonesia to jointly build the"One Belt" and take the "One Road", proposing the "Silk Road Economic Belt" and "21st Century Maritime Silk Road" in *** the "One Belt and One Road" initiative, the principle of mutual consultation, joint construction and sharing has been upheld, and friendly exchanges and cooperation between the countries along the route have been *** December 2016, the "One Belt and One Road" International Marathon Series fired

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Cellular & Molecular Immunology 2019年第3期16卷 216-224页

作者： Hongdi Ma Wanyin Tao Shu zhu Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Innate Immunity and Chronic DiseaseSchool of Life SciencesUniversity of Science and Technology of China230027 HefeiChina School of Data Science University of Science and Technology of China230026 HefeiChina

Although lymphocytes are known to circulate throughout lymphoid tissues and blood,they also establish residency in nonlymphoid organs,most prominently in barrier tissues,such as the *** adaptation of T lymphocytes to intestinal environments requires constant discrimination between natural stimulation from commensal flora and food and pathogens that need to be *** variations that cause a defective defense or a break in tolerance along with environmental cues,such as infection or imbalances in the gut microbiota known as dysbiosis,can trigger several immune disorders via the activation of T lymphocytes in the *** of the immune mechanisms that distinguish between commensal flora and pathogenic organisms may reveal therapeutic targets for the prevention or modulation of inflammatory diseases and boost the efficacy of cancer *** this review,we discuss the development and adaptation of T lymphocytes in the intestine,how these cells protect the host against pathogenic infections while tolerating food antigens and commensal microbiota,and the potential implications of targeting these cells for disease management and therapeutics.

关键词： Intestinal T cells Pathogenic infection Gut microbiota T-cell therapy

Cleaning the energy sources for water heating among Nanjing households： barriers and opportunities for solar and natural gas

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Frontiers of Environmental Science & Engineering 2014年第5期8卷 757-766页

作者： Lingyun zhu Beibei LIU Jun BI School of the Environment Nanjing University Nanjing 210046 China

Energy for water heating accounts for an increasing part in residential energy demand in China. An extensive survey was conducted to analyze the determinants of household energy choices for water heaters among residents in Nanjing, China. Two sets of variables were examined as potential influences： building features and household socio-economic characteristics. Results suggest that building features such as gas availability and building structures, and household characteristics such as household head＇s education degree and energy-conserving sense are crucial determinants in choosing natural gas as water heater energy. Installation permission for solar water heater, building stories, and residential location serve as determining factors in choosing solar water heaters. Based on these, barriers and opportunities are discussed for transitions toward cleaner water heating energies, and suggestions are given for local governments to promote cleaner energy replacement in China.

关键词： residential energy demand water heating,multinomial logit model

An improved practical model for wear prediction of revolute clearance joints in crank slider mechanisms

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Science China(Technological Sciences) 2013年第12期56卷 2953-2963页

作者： LI Pei CHEN Wei zhu AiBin Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xi’an Jiaotong University

A stationary clearance link algorithm(SCLA)for calculating the reaction-force of revolute clearance joints in crank slider mechanisms is proposed in this *** SCLA is more efficient than other algorithms of the same ***,based on the Winkler foundation model,an unsymmetrical Winkler foundation model and a double elastic layer Winkler model are *** integrating a dynamic model and the unsymmetrical Winkler foundation model with Archard wear model,an improved integrated wear prediction model is also generated.A series of experiments have been performed to compare with the predicted analysis data,and the results showed a good *** a real industry application,with the double elastic layer Winkler model,the integrated wear prediction model was successfully used to predict the wear depth of the joint bearing(bimetallic bearing)for the cantilever crane of a concrete pump truck of Sany Heavy Industry.

关键词： revolute clearance joint stationary clearance link algorithm unsymmetrical Winkler foundation model double elastic layer Winkler model

A new regeneration approach to cation resins with aluminum salts： application of desalination by its mixed bed

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Frontiers of Environmental Science & Engineering 2012年第1期6卷 45-50页

作者： Zhigang LIU shaomin zhu Yansheng LI School of Environmental&Chemical Engineering Dalian Jiaotong UniversityDalian 116028China

A novel method for the regeneration of cation exchange resins by aluminum （A1） salts was investigated in order to improve the regeneration efficiency of resins and reduce the dosage of regenerant. The influences of AP＋ concentration and the pH of regeneration solution on resin transformation had been studied. The desalination experi- ments were carried out to evaluate the characteristics of the A1 form resins. Experimental results showed that the regeneration rate of resins was strictly dependent on AP＋ concentration and the pH of the solution. Compared to the conventional regeneration method, the Al form mixed bed exhibited the same desalination capability as the H form mixed bed （MB）, and the total organic carbon （TOC） removal was up to 90%, clearly higher than that of the H form. Al salt solution could be utilized repeatedly to regenerate Al form resins.

关键词： aluminum (Al) form resins desalination mixed bed (MB) regeneration

Overexpression of chaperonin containing TCP1, subunit 3 predicts poor prognosis in hepatocellular carcinoma

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World Journal of Gastroenterology 2015年第28期21卷 8588-8604页

作者： Xiao Cui Zhi-ping Hu Zhao Li Peng-Ji Gao Ji-Ye zhu Department of Hepatobiliary Surgery Peking University People’s Hospital Beijing Key Surgical Basic Research Laboratory of Liver Cirrhosis and Liver Cancer Peking University People’s Hospital

AIM:To investigate the value of chaperonin containing TCP1,subunit 3(CCT3) to predict the prognosis of patients with hepatocellular carcinoma(HCC) and determine its function in HCC ***:CCT3 expression levels were examined in human non-cancerous liver tissues and a variety of HCC cell lines by quantitative real-time PCR and ***3 expression was suppressed by small interfering *** effects of reducing CCT3 expression in HCC cells were ***3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide(MTT) assay,cell counting experiment,cell cycle assay,apoptosis assay and invasion assay were employed to evaluate cell functions in *** was performed on HCC *** addition,CCT3 expression in HCC specimens was also assessed at the protein and mRNA *** between clinicopathological characteristics and prognosis were analyzed,along with the possible mechanisms involved in CCT3's function in HCC ***:The expression levels of CCT3 mRNA and protein were upregulated in HCC cell lines in contrast to adjacent non-cancerous *** CCT3 expression not only suppressed cell proliferation in cell counts,MTT assay,cell cycle assay and induced cell apoptosis(P < 0.05 vs negative control),but also inhibited the tumor cell invasion capacity in vitro {P< 0.01 vs negative control).Overexpression of CCT3 in the nuclei of cancer cells in HCC specimens(58of 104 patients,55.8%) was associated with poor prognosis in HCC patients(3-year survival rate,55.5%vs 84.2%,P = 0.020) after *** analyses showed that signal transducer and activator of transcription 3(STAT3) activation was decreased even when stimulated by interleukin-6 after knocking down CCT3 in the HepG2 cell ***:Overexpression of CCT3 in the nuclei of cancerous cells is associated with HCC ***3 may be a target that affects the activation of STAT3 in HCC.

关键词： Hepatocellular carcinoma Chaperonin ContainingTCP1, Subunit 3 Cell growth Invasion Prognosis