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Automatic Design Theory and Realization of Kinematic Schemes for Mechanism System

YE Zhi-gang, ZOU Hui-jun, GUO Wei-zhong, HU Song, TIAN Yong-li, XU Yong

《机械工程前沿(英文)》 2006年 第1卷 第1期   页码 48-55 doi: 10.1007/s11465-005-0014-7

摘要:

Based on an analysis of mechanism combination methods of a current mechanism system kinematic scheme, input/output kinematic behavior and their constraint relations were proposed to represent the kinematic behavior knowledge of a mechanism system. Furthermore, a tree structure of a kinematic behavior decomposition process for a mechanism system was provided. Considering multiple outputs for a mechanism system, the matching algorithm and the attributes propagation method of kinematic behavior were used to generate a mechanism combination scheme. Its intermediate design solution and the constraint relations between input and output are generated to fill the common blackboard. Moreover, using information in the blackboard as input motion, the behavior attributes of other process actions are transmitted to attribute items of the blackboard, which finally enables a computer-aided automatic design process of a mechanism system kinematic scheme. To avoid the problem of schemes combination explosion caused by unbounded depth in the search process, bounded depth-first search was used to control the number of expanded hierarchies for a design tree. Finally, an example was given to show its feasibility and solution efficiency.

关键词: combination explosion     unbounded     computer-aided automatic     mechanism combination     information    

反爆炸恐怖袭击防排爆技术综述

方向,高振儒,周守强,郭涛

《中国工程科学》 2013年 第15卷 第5期   页码 80-83

摘要:

爆炸袭击是最残酷、最血腥、最难防范的恐怖活动,防排爆是反爆炸恐怖袭击最直接的技术手段,其中涉及搜爆、排爆、防爆等技术装备和方法。近年来,反爆炸恐怖袭击防排爆技术取得了很大进步,但还存在许多技术难题。本文主要分析了爆炸恐怖活动规律、搜排爆装备技术和防护技术现状,研究了爆炸物探测和防排爆的技术途径,针对现有装备技术的局限性提出了研究的方向和思路。

关键词: 爆炸恐怖     搜爆     排爆     防爆    

New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1509-0

摘要:

• The combination of NaOH and nitrite was used to control harmful gas in sewers.

关键词: Sewer corrosion     Sulfide control     Combination treatment     NaOH     Nitrite    

低渗透油田层内爆炸增产技术研究进展

李德聪,陈力,林英松,丁雁生

《中国工程科学》 2010年 第12卷 第9期   页码 52-57

摘要:

系统介绍了层内爆炸增产技术的技术思路、应用前景以及实现该技术所涉及到的一系列关键性技术问题;详细介绍了近年来针对此项技术所开展的一系列研究工作,报告了取得的一些研究成果,并对今后的主要研究工作做了展望。

关键词: 低渗透油田     爆炸力学     层内爆炸     安全性     模拟试验     力学模型    

核爆聚变电站──人类未来能源的希望

彭先觉,刘成安,陈银亮,郭 勤,尹文华,白云,陈小伟,屈明

《中国工程科学》 2008年 第10卷 第1期   页码 39-46

摘要:

详细介绍了核爆聚变电站的基本概念、组成、发展简史;提出了解决核爆炸实施安全、烧氘型核装置设计、核燃料生产回收等一系列问题的技术途径;对电站的技术可行性进行了分析论证,并比较了各种作为人类未来能源核能方案的前景。

关键词: 核爆聚变电站     爆洞     喷钠     烧氘型核装置     核燃料循环    

Immunotherapy-based combination strategies for treatment of gastrointestinal cancers: current status

Chenfei Zhou, Jun Zhang

《医学前沿(英文)》 2019年 第13卷 第1期   页码 12-23 doi: 10.1007/s11684-019-0685-9

摘要:

Strategies in comprehensive therapy for gastrointestinal (GI) cancer have been optimized in the last decades to improve patients’ outcomes. However, treatment options remain limited for late-stage or refractory diseases. The efficacy of immune checkpoint inhibitors (ICIs) for treatment of refractory GI cancer has been confirmed by randomized clinical trials. In 2017, pembrolizumab was approved by the US Food and Drug Administration as the first agent for treatment of metastatic solid tumors with mismatch repair deficiency, especially for colorectal cancer. Given the different mechanisms, oncologists have focused on determining whether ICIs-based combination strategies could achieve higher efficacy than conventional therapy alone in late-stage or even front-line treatment of GI cancer. This review discusses the current status of combining immune checkpoint inhibitors with molecular targeted therapy, chemotherapy, or radiotherapy in GI cancer in terms of mechanisms, safety, and efficacy to provide basis for future research.

关键词: gastrointestinal cancer     immune checkpoint inhibitor     combination therapy    

建筑物内爆炸荷载研究综述

高康华,金丰年,王德荣,马士良

《中国工程科学》 2013年 第15卷 第5期   页码 59-64

摘要:

室内爆炸已成为当前建筑物面临爆炸灾害的主要形式之一。本文针对建筑物内化学炸药爆炸和可燃性气体混合物爆燃两种情况,从理论研究、模型试验和数值模拟3个方面总结并评述了当前国内外的研究现状,指出相关研究多以容器及管道内的爆炸试验或数值模拟为主,现有的理论模型对建筑物特点及使用功能考虑较少。

关键词: 建筑物     内爆炸荷载     化学炸药     可燃气体混合物     爆燃    

Study on electrical ignition and micro-explosion properties of HAN-based monopropellant droplet

Yonggang YU, Ming LI, Yanhuang ZHOU, Xin LU, Yuzhu PAN,

《能源前沿(英文)》 2010年 第4卷 第3期   页码 430-435 doi: 10.1007/s11708-010-0010-4

摘要: In order to study the electrical ignition characteristics of hydroxylammonium nitrate (HAN)-based liquid propellant, an experimental device for the electrical heating ignition of a liquid propellant droplet was designed. By using a high speed camera system, the ignition properties of the LP1846 single droplet were observed at different electrical heating speeds. The results show that when the LP1846 droplet is electrified, it mainly goes through an evaporization process, a periodic expansion and contraction process, a stronger thermal decomposition process, and an ignition and combustion process. The periodic expansion and contraction process accompanies the droplet micro-explosion phenomenon, and the micro-explosion mechanism is formed mainly due to the overheated water component in LP1846. When peak load voltage is from 80 to 140V/s, the ignition delay of the LP1846 droplet is linearly shortened from 0.82 to 0.62s, but the flame is lighter. Based on the above experiments, a simplified model of the electrical heating ignition of the LP1846 single droplet is established.

关键词: liquid propellant     electrical ignition     ignition delay time     transient measurement    

高能量密度爆炸与化学爆炸的物理特征及爆炸次生洪水波效应探讨

周丰峻

《中国工程科学》 2000年 第2卷 第12期   页码 45-51

摘要:

文章根据高能量密度爆炸的辐射流体动力学计算与TNT装药爆炸计算的结果,对二类爆炸波系的形成发展,爆炸近区、远区的物理特征和爆炸作用物理模拟问题进行了研究,得出了对防护工程比较重要的几点结论。同时对于同两类爆炸引起的次生洪水波灾害进行了探讨,阐明了系统开展洪水波防护研究的重要意义。

关键词: 高能量密度爆炸     化学焊炸     冲击波     洪水波    

Removal of virus aerosols by the combination of filtration and UV-C irradiation

《环境科学与工程前沿(英文)》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1627-y

摘要:

● The removal of virus aerosols by filtration and UV-C irradiation was proposed.

关键词: Filtration system     UV-C irradiation     Virus aerosol     Public health     COVID-19    

基于评价方法属性层次的组合评价研究

陈衍泰,陈国宏,李美娟

《中国工程科学》 2005年 第7卷 第8期   页码 56-59

摘要:

针对现存的多种单一综合评价方法机理、属性层次相异引起的对同一个对象评价结论不相容的问题,提出一种新的组合评价方法。定义了“具有相容性”与“特殊属性”的两类综合评价方法;建立了两个组合评价模型,分别将这两个属性层次方法所得的不一致的评价值与排序结论进行组合;在此基础上提出“复组合”的概念。并应用此模型对我国欠发达地区15个城市的综合实力进行评价,使得系统评价更具有科学性和实用性,为欠发达地区开发战略制订宏观经济政策提供实证基础。

关键词: 评价方法的属性层次     组合模型     复组合    

Adsorption in combination with ozonation for the treatment of textile waste water: a critical review

Shraddha Khamparia,Dipika Kaur Jaspal

《环境科学与工程前沿(英文)》 2017年 第11卷 第1期 doi: 10.1007/s11783-017-0899-5

摘要: A combination of adsorption with ozonation proved best for dye removal. Toxicity of the textile effluents can be remarkably reduced by combined method. Wide scope for choice of natural materials for treatment of textile dyes. Intrusion of synthetic textile dyes in the ecosystem has been recognized as a serious issue worldwide. The effluents generated from textiles contain large amount of recalcitrant unfixed dyes which are regarded as emerging contaminants in the field of waste water study. Removal of various toxic dyes often includes diverse and complex set of physico-chemical, biological and advanced oxidation processes adopted for treatment. Adsorption in itself is a well-known technique utilized for treatment of textile effluents using a variety of adsorbents. In addition, ozonation deals with effective removal of dyes using high oxidising power of ozone. The review summarizes dye removal study by a combination of ozonation and adsorption methods. Also, to acquire an effective interpretation of this combined approach of treating wastewater, a thorough study has been made which is deliberated here. Results asserts that, with the combined ability of ozone and a catalyst/adsorbent, there is high possibility of total elimination of dyes from waste water. Several synthetically prepared materials have been used along with few natural materials during the combined treatment. However, considering practical applicability, some areas were identified during the study where work needs to be done for effective implementation of the combined treatment.

关键词: Adsorption     Ozonation     Catalytic Ozonation     Textile dyes     Mineralization    

Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions

《化学科学与工程前沿(英文)》 2023年 第17卷 第12期   页码 2144-2155 doi: 10.1007/s11705-023-2362-4

摘要: This study introduces multifunctional silica nanoparticles that exhibit both high photothermal and chemodynamic therapeutic activities, in addition to luminescence. The activity of the silica nanoparticles is derived from their plasmonic properties, which are a result of infusing the silica nanoparticles with multiple Cu2–xS cores. This infusion process is facilitated by a recoating of the silica nanoparticles with a cationic surfactant. The key factors that enable the internal incorporation of the Cu2–xS cores and the external deposition of red-emitting carbon dots are identified. The Cu2–xS cores within the silica nanoparticles exhibit both self-boosting generation of reactive oxygen species and high photothermal conversion efficacy, which are essential for photothermal and chemodynamic activities. The silica nanoparticles’ small size (no more than 70 nm) and high colloidal stability are prerequisites for their cell internalization. The internalization of the red-emitting silica nanoparticles within cells is visualized using fluorescence microscopy techniques. The chemodynamic activity of the silica nanoparticles is associated with their dark cytotoxicity, and the mechanisms of cell death are evaluated using an apoptotic assay. The photothermal activity of the silica nanoparticles is demonstrated by significant cell death under near-infrared (1064 nm) irradiation.

关键词: copper sulfide nanoparticles     chemodynamic therapy     photothermal therapy     carbon dots     silica nanoparticles    

中国第一爆——广东省宏大爆破工程公司的杰作

《中国工程科学》 2002年 第4卷 第7期   页码 93-93

Technology for the preparation and application of cermet coatings and claddings in thermal power plants

Zongde LIU, Miao LIU, Liping ZHAO

《能源前沿(英文)》 2011年 第5卷 第3期   页码 257-262 doi: 10.1007/s11708-010-0129-3

摘要: This paper introduces the applied background of wear and corrosion-resistant materials in the electricity industry. Next, the paper summarizes the development of preparation technology for cermets and cermet coatings and claddings, finally explaining the application and development of submicron-grain cermet coatings and claddings through reaction synthesis technology.

关键词: cermets     cermet coatings/claddings     electro-thermal explosion spraying     reaction synthesis    

标题 作者 时间 类型 操作

Automatic Design Theory and Realization of Kinematic Schemes for Mechanism System

YE Zhi-gang, ZOU Hui-jun, GUO Wei-zhong, HU Song, TIAN Yong-li, XU Yong

期刊论文

反爆炸恐怖袭击防排爆技术综述

方向,高振儒,周守强,郭涛

期刊论文

New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

期刊论文

低渗透油田层内爆炸增产技术研究进展

李德聪,陈力,林英松,丁雁生

期刊论文

核爆聚变电站──人类未来能源的希望

彭先觉,刘成安,陈银亮,郭 勤,尹文华,白云,陈小伟,屈明

期刊论文

Immunotherapy-based combination strategies for treatment of gastrointestinal cancers: current status

Chenfei Zhou, Jun Zhang

期刊论文

建筑物内爆炸荷载研究综述

高康华,金丰年,王德荣,马士良

期刊论文

Study on electrical ignition and micro-explosion properties of HAN-based monopropellant droplet

Yonggang YU, Ming LI, Yanhuang ZHOU, Xin LU, Yuzhu PAN,

期刊论文

高能量密度爆炸与化学爆炸的物理特征及爆炸次生洪水波效应探讨

周丰峻

期刊论文

Removal of virus aerosols by the combination of filtration and UV-C irradiation

期刊论文

基于评价方法属性层次的组合评价研究

陈衍泰,陈国宏,李美娟

期刊论文

Adsorption in combination with ozonation for the treatment of textile waste water: a critical review

Shraddha Khamparia,Dipika Kaur Jaspal

期刊论文

Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions

期刊论文

中国第一爆——广东省宏大爆破工程公司的杰作

期刊论文

Technology for the preparation and application of cermet coatings and claddings in thermal power plants

Zongde LIU, Miao LIU, Liping ZHAO

期刊论文