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Auto-ignition of biomass synthesis gas in shock tube at elevated temperature and pressure

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Science Bulletin 2015年第22期60卷 1935-1946页

作者： Linqi Ouyang Hua Li Shuzhou Sun xiaole wang Xingcai Lu Laboratory for Power Machinery and Engineering of Ministry of Education Shanghai Jiao Tong University

Ignition delay times of multi-component biomass synthesis gas （bio-syngas） diluted in argon were measured in a shock tube at elevated pressure （5, 10and 15 bar, 1 bar = 105 Pa）, wide temperature ranges （1,100-1,700 K） and various equivalence ratios （0.5, 1.0, 2.0）. Additionally, the effects of the variations of main constituents （H2：CO = 0.125-8） on ignition delays were investigated. The experimental results indicated that the ignition delay decreases as the pressure increases above certain temperature （around 1,200 K） and vice versa. The ignition delays were also found to rise as CO concentration increases, which is in good agreement with the literature. In addition, the ignition delays of bio-syngas were found increasing as the equivalence ratio rises. This behavior was primarily discussed in present work. Experimental results were also compared with numerical predictions of multiple chemical kinetic mechanisms and Li＇s mechanism was found having the best accuracy. The logarithmic ignition delays were found nonlinearly decrease with the H2 concentration under various conditions, and the effects of temperature, equivalence ratio and H2 concentration on the ignition delays are all remarkable. However, the effect of pressure is rela- tively smaller under current conditions. Sensitivity analysis and reaction pathway analysis of methane showed that R1 （H ＋O2= O -9 OH） is the most sensitive reaction promot- ing ignition and R13 （H ＋O2 （＋M） = HO2 （＋M））, R53（CH3＋H （＋M）= CH4 （＋M））, R54 （CH4＋H= CH3 ＋ H2） as well as R56 （CH4 ＋ OH = CH3 ＋ H2O） are key reactions prohibiting ignition under current experimental conditions. Among them, R53 （CH3 ＋ H （＋M） = CH4 （＋M））, R54 （CH4 ＋ H = CH3 ＋ H2） have the largest posi- tive sensitivities and the high contribution rate in rich mixture. The rate of production （ROP） of OH of R1 showed that OH ROP of R1 decreases sharply as the mixture turns rich. Therefore, the ignition delays become longer as the equiva- lence ratio increases.

关键词： Shock tube Biomass synthesis gas Ignition delay time Sensitivity analysis Reactionpathway analysis

Increased serum IL-10 in lupus patients promotes apoptosis of T cell subsets via the caspase 8 pathway initiated by Fas signaling

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The Journal of Biomedical Research 2015年第3期29卷 232-240页

作者： Xiaofan Yang Bin Sun Huijuan wang Cheng Yin xiaole wang Xiaohui Ji Department of Microbiology and Immunology Nanjing Medical University Department of Nephrology the First Affiliated Hospital of Nanjing Medical University

We sought to investigate the expression of Fas and FasL on T cell surface and caspase 8 involvement in T cell apoptosis promoted by serum IL-10 in systemic lupus erythematosus （SLE） patients. Cells and sera were obtained from 35 SLE patients. Apoptosis of T cells in patients with SLE was increased and associated with the SLE disease activity index （SLEDAI）. Elevated expression of Fas and FasL on T cell surface contributed to increased apoptosis of T cells. Increased IL-10 in the sera of SLE patients was capable of inducing Fas and FasL expression on CD4^＋T cell surface, promoting apoptosis of this cell subset. Decreased IL-10 serum levels and low expression of Fas were found in 5 patients of the first follow-up group after 2-month treatment. In another group with one-year treatment, the SLEDAI declined to inactive scores. Serum IL-10 was decreased significantly, and expression of Fas and FasL on T cells was also reduced. Declined apoptosis was predominant only in CD4^＋T cell subset. When sera with high level of IL-10 were used to culture PBMCs from healthy controls, activated caspase 8 was elevated in CD3^＋T, CD4^＋T and CD8^＋T cells. The study showed that serum IL-10 induced apoptosis of T cell subsets via the caspase 8 pathway initiated by Fas signaling. Increased apoptosis of T cells contributes to autoantigen burden, which is pathogenic in the development of SLE.

关键词： apoptosis T cell lupus erythematosus systemic

The Study of Legal Issue of Policy Banks

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International Journal of Technology Management 2013年第10期 80-82页

作者： xiaole wang Civil and Commercial Law School Southwest University of Political Science and Law Chongqing 401120

China has built three policy banks since 1994, which are China Development Bank, China Export-import Bank and China Agricultural Development Bank. Policy banks, as an important financial instrument, have made great contributions to the development of China＇ s economy. But there isn＇ t an official law fbr policy banks for a long time. They just operate based on some relevant documents and regulations of their own. However these documents and regulations are always indistinct in law, which is not good for the further development of policy banks and the accomplishment of our country＇ s financial system. As a result, in order to standardize the operation of China＇ s policy banks, it＇ s essential to position policy banks in law accurately, which is also the only way to legalize policy banks. Aiming at finding out the problems existing in policy banks of China in present, this paper analyzes the general theory of policy banks, some relevant international experience and the current situation of law position of china＇ s policy banks. In addition, through the analyses of possible solutions, this paper wishes to reconstruct the legal location of China ＇ s policy banks.

关键词： Policy Banks Legal Issue Legal Position

The Simulation and Optimization Design of Adams-based Engine Suspension System

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International Journal of Technology Management 2014年第8期 158-161页

作者： Jianxin XlE xiaole wang Chao LIU Qingdao Huanghai University Qingdao Shandong 266427 China

In this study, the engine suspension system was optimized for making the vibration between engine and car body minimized, and also the optimization was simulated using software Adams. The purpose of this study was to research the vibration isolation of the engine mounting system and implement multi-objective optimization for the intrinsic frequency. In this paper, the optimization was implemented in two ways：（1） the intrinsic frequency was optimized by reasonably allocating it：（2） the intrinsic frequency was optimized using energy decoupling. The optimized intrinsic frequencies were simulated using software Adams and then the simulation results were compared. The simulation results showed that the optimized energy distribution was almost up to 90% and the decoupling degree was greatly improved by comparing the initial data, proving the optimized data played a geater effect on engine vibration isolation and further verifying the feasibility of optimization design method.

关键词： Engine Suspension System Optimization Design Simulation ADAMS

Simulation and Optimization Design Based on Adams Engine Mounting System

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International Journal of Technology Management 2014年第7期 152-154页

作者： Xie Jianxin wang xiaole Liu Chao Qingdao Huanghai University Qingdao Shandong 266427 China

The content of this subject research is to conduct optimization for engine mounting system, and through optimization, it can make the vibration between engine and vehicle body achieve a minimum, using Adams software for simulation. It studies the isolation vibration of the engine mounting system and conducts goal optimization for fixed frequency. This paper uses two methods for optimization. One is to use the rational allocation of fixed frequency to optimize the fixed frequency, and the other is to use energy decoupling method to optimize the fixed frequency. It uses Adams software for simulation of the optimized fixed frequency and conducts comparison of simulated results. The simulated results show that the optimized energy distribution situation almost achieves 90%. Compared with original data, decoupling degree also has a very great improvement, illustrating that the optimized data has greater effect for the isolated vibration of engine, in order to further verify the feasibility of optimization design method.

关键词： engine mounting system optimization design simulation Adams

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全垫升气垫船安全航行控制技术研究综述

哈尔滨工程大学学报 2023年第9期44卷 1475-1486页

作者：王元慧王晓乐王成龙哈尔滨工程大学智能科学与工程学院黑龙江哈尔滨150001

全垫升气垫船是一种具有两栖性的高性能船舶,因其独特的两栖性和高速性被广泛应用于民用和军事领域。由于其特殊的气垫围裙结构,船体可以脱离于航行表面,航行阻力极小,因此会导致其操纵性和安全性比普通水面船差。尤其在垫态高速航行时... 详细信息

全垫升气垫船是一种具有两栖性的高性能船舶,因其独特的两栖性和高速性被广泛应用于民用和军事领域。由于其特殊的气垫围裙结构,船体可以脱离于航行表面,航行阻力极小,因此会导致其操纵性和安全性比普通水面船差。尤其在垫态高速航行时,气垫船缺少足够的向心力和横向力,会涉及失速、低头埋艏、侧漂翻船、高速甩尾等问题。因此针对全垫升气垫船安全航行控制问题,开展其安全航行控制理论与方法研究有着重要的军事意义和民用价值。本文介绍了全垫升气垫船的主要性能和国内外发展概况和全垫升气垫船运动数学模型建立及研究发展;最后归纳总结国内外关于全垫升气垫船安全航行控制技术的研究,分类介绍控制策略发展现状,并讨论全垫升气垫船安全航行技术未来发展方向和趋势。指出未来气垫船安全航行控制将以实现气垫船多功能、智能化、无人化等为目标,在保证气垫船航行安全的前提下实现气垫船自动控制和管理。

关键词：海洋工程全垫升气垫船数学模型航行控制控制系统运动控制技术发展安全航行

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解析隐性广告:内涵、本质与背景

新闻界 2007年第5期 142-144页

作者：王晓乐中央财经大学新闻传播系北京100081

本文对隐性广告的概念进行了重新界定,探讨了隐性广告的发展背景与现实问题。

关键词：隐性广告植入式广告广告性新闻

多带隙机理融合声学超材料及其低频宽带抑振特性

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振动与冲击 2024年第23期43卷 250-259页

作者：孙萍徐思齐王晓乐上海交通大学感知科学与工程学院上海200240

紧凑轻量的低频宽带隙声学超材料在弹性波控制领域具有广阔的应用前景。提出了一种结构功能复用的声学超材料基本构型,能够融合布拉格散射带隙、局域共振带隙和惯性放大带隙,具备丰富的带隙调控自由度。建立了无限大尺寸声学超材料板的... 详细信息

紧凑轻量的低频宽带隙声学超材料在弹性波控制领域具有广阔的应用前景。提出了一种结构功能复用的声学超材料基本构型,能够融合布拉格散射带隙、局域共振带隙和惯性放大带隙,具备丰富的带隙调控自由度。建立了无限大尺寸声学超材料板的能带计算有限元模型,结合算例对其带隙特性进行了预报。制备了声学超材料样件并附加于有限尺寸的平直铝板,采用冲击力锤法获取了振动传递函数,验证了带隙计算结果的准确性并衡量了低频宽带抑振效应。试验结果表明,所提出的声学超材料能够在100~1000 Hz的宽频范围内平均衰减平直铝板的结构振动达21 dB,近场声辐射达6 dB。并且,对于大曲率的铝板结构,所提出的声学超材料不仅安装方便,而且同样能够有效体现低频宽带抑振效果。此外,通过参数分析揭示了基座局域共振机构的悬臂刚度和末端质量以及惯性放大机构的附加质量和惯性放大角对带隙特性的影响规律。该研究旨在为低频宽带隙声学超材料的发展提供思路和方法。

关键词：声学超材料弹性波带隙抑振

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下丘脑异常与抑郁症

心理科学进展 2015年第10期23卷 1763-1774页

作者：王晓乐王东林杭州师范大学认知与脑疾病研究中心浙江省认知障碍评估技术研究重点实验室杭州311121

近年来的研究发现了抑郁模型动物或抑郁症病人下丘脑异常的大量证据,诸如下丘脑体积及神经元数目的改变,下丘脑-垂体-内分泌轴的改变,下丘脑相关激素、受体及其基因、神经肽的改变,下丘脑与其他脑区功能联系的改变等等。然而,下丘脑与... 详细信息

近年来的研究发现了抑郁模型动物或抑郁症病人下丘脑异常的大量证据,诸如下丘脑体积及神经元数目的改变,下丘脑-垂体-内分泌轴的改变,下丘脑相关激素、受体及其基因、神经肽的改变,下丘脑与其他脑区功能联系的改变等等。然而,下丘脑与抑郁症关系的研究所获证据多来自动物实验、或临床间接指标(如病人外周血激素水平等),或病人脑组织尸检,缺乏来自病人活体下丘脑异常的直接证据。今后的研究可考虑运用影像学的手段更直接地探索抑郁症患者活体下丘脑的结构特征和功能特征,以期发现抑郁症的生物学标记及其可靠性指标,为抑郁症的客观诊断提供依据,为揭示抑郁症病理机制提供线索。

关键词：抑郁症下丘脑客观诊断病理机制