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A Triptycene-Based Porous Organic Polymer that Exhibited High Hydrogen and Carbon Dioxide Storage Capacities and Excellent CO_(2)/N_(2) Selectivity

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Chinese Journal of Chemistry 2015年第5期33卷 539-544页

作者： Xi-Long Lu tian-you zhou Doufeng Wu Qiang Wen Xin Zhao Qiaowei Li Qun Xiang Jia-Qiang Xu Zhan-Ting Li Department of Chemistry Shanghai UniversityShanghai 200444China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China Department of Chemistry Fudan UniversityShanghai 200433China

A novel porous organic polymer(POP)has been constructed through the condensation of triptycene tricatechol and 1,3,5-benzenetris(4-phenylboronic acid).This triptycene-based POP exhibited high H2 uptake(up to 1.84 wt%at 77 K,1 bar),large CO_(2) adsorption capacity(up to 18.1 wt%at 273K,1 bar),and excellent CO_(2)/N_(2) adsorption selectivity(up to 120/1).The influence of solvent on the gas adsorption performance of the POP has also been investigated.

关键词： porous organic polymers H_(2)/CO_(2)adsorption CO_(2)/N_(2)selectivity

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法治中的文本与语境分析

法制与社会发展 2005年第1期11卷 58-65页

作者：田成有周力云南财贸学院云南昆明650221 云南大学云南昆明650221

从“文本———语境”的关系来看待法治 ,可以发现法治的根本性问题在于文本意义的展开 ,而这种意义的展开是一种语境的依赖。通过分析语境与文本解读的关系 ,法治的核心问题将会得到近距离的审视。

关键词：法治根本性核心问题审视语境分析文本意义文本解读发现法性问题展开

Review of precipitation strengthening in ultrahigh-strength martensitic steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao tian Chunlei Shang Chaolei Zhang Xiaoye zhou Honghui Wu Shuize Wang Guilin Wu Junheng Gao Jiaming Zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

A Novel Self-Supervised Learning Network for Binocular Disparity Estimation

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 209-229页

作者： Jiawei tian Yu zhou Xiaobing Chen Salman A.AlQahtani Hongrong Chen Bo Yang Siyu Lu Wenfeng Zheng Department of Computer Science and Engineering Major in Bio Artificial IntelligenceHanyang UniversityAnsan-si15577Republic of Korea School of Electrical and Computer Engineering Louisiana State UniversityBaton RougeLA 70803USA Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityRiyadh11574Saudi Arabia School of Automation University of Electronic Science and Technology of ChinaChengdu610054China

Two-dimensional endoscopic images are susceptible to interferences such as specular reflections and monotonous texture illumination,hindering accurate three-dimensional lesion reconstruction by surgical *** study proposes a novel end-to-end disparity estimation model to address these *** approach combines a Pseudo-Siamese neural network architecture with pyramid dilated convolutions,integrating multi-scale image information to enhance robustness against lighting *** study introduces a Pseudo-Siamese structure-based disparity regression model that simplifies left-right image comparison,improving accuracy and *** model was evaluated using a dataset of stereo endoscopic videos captured by the Da Vinci surgical robot,comprising simulated silicone heart sequences and real heart video *** results demonstrate significant improvement in the network’s resistance to lighting interference without substantially increasing ***,the model exhibited faster convergence during training,contributing to overall performance *** study advances endoscopic image processing accuracy and has potential implications for surgical robot applications in complex environments.

关键词： Parallax estimation parallax regression model self-supervised learning Pseudo-Siamese neural network pyramid dilated convolution binocular disparity estimation

北京拟建六环天然气管道储气能力计算及调峰问题探讨

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天然气工业 2004年第12期24卷 155-157页

作者：刘燕马一太田贯三周游天津大学热能研究所山东建筑工程学院空调系

北京规划建设管道总长度超过 10 0km的高压六环天然气管网 ,对这样高压力、长距离和多点供气管线的储气量计算和储气调峰能力进行准确计算与分析十分重要。根据城市高压外环供气特点建立了管道储气与用气负荷耦合模型 ,采用解析法求解 ... 详细信息

北京规划建设管道总长度超过 10 0km的高压六环天然气管网 ,对这样高压力、长距离和多点供气管线的储气量计算和储气调峰能力进行准确计算与分析十分重要。根据城市高压外环供气特点建立了管道储气与用气负荷耦合模型 ,采用解析法求解 ,得到高压管道储气量与用气负荷关系的计算公式。又据北京市目前天然气负荷的波动规律 ,对拟建北京市高压天然气六环管道在不同压力和管径下的储气能力 ,以及门站定压和定流工况下的可用储气量进行了分析。经分析认为 ,若建设设计压力为 4 .0MPa、管径为DN80 0的六环管道 ,在保证末端工作压力、门站按定流量供气的条件下 ,能用于城市负荷调峰的天然气量约为 180× 10 4m3 ,相当于少建储气压力变化范围为 1.0～ 0 .4MPa、拥有 4个几何容积为 1× 10 4m3 球罐的储罐站 6座。

关键词：储气量用气负荷供气门站管径建设设计储气调峰北京拟建波动规律

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气藏经济采收率的确定方法研究

天然气工业 2002年第2期22卷 95-97页

作者：田玲钰周游姜贻伟马小原宋国富李涛中原石油勘探局勘探开发科学研究院

我国长期实行计划经济体制 ,气藏开采的经济性往往被忽略 ,采收率主要反映了技术可采性。在目前市场经济条件下 ,油气生产企业最关心的是气藏开发能够获得最大经济效益的采收率 (即经济采收率 )。因此 ,研究气藏经济采收率 ,应用于气藏... 详细信息

我国长期实行计划经济体制 ,气藏开采的经济性往往被忽略 ,采收率主要反映了技术可采性。在目前市场经济条件下 ,油气生产企业最关心的是气藏开发能够获得最大经济效益的采收率 (即经济采收率 )。因此 ,研究气藏经济采收率 ,应用于气藏开发可行性论证 ,指导气藏科学开发 ,为油气生产企业决策者提供依据。文章采用经济极限产量法和现金流量法研究气藏经济采收率 ,从经济评价角度研究气藏采收率 ,使采收率不仅反映了技术的可采性 ,而且反映了经济的可采性。

关键词：油气藏可采储量经济采收率经济效益经济评价方法

Impact of food to microorganism ratio and alcohol ethoxylate dosage on methane production in treatment of low-strength wastewater by a submerged anaerobic membrane bioreactor

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Frontiers of Environmental Science & Engineering 2017年第6期11卷 47-57页

作者： Yulun Nie Xike tian Zhaoxin zhou Yu-you Li Faculty of Material Science and Chemistry China University of Geosciences Wuhan 430074 China Department of Civil and Environmental Engineering Graduate School of Engineering Tohoku University 6-6-06 Aza-Aoba Aramaki Aoba-ku Sendai Miyagi 980-8579 Japan

The effects of food to microorganism （FIM） ratio and alcohol ethoxylate （AE） dosage on the methane production potential were investigated in treatment of low-strength wastewater by a submerged anaerobic membrane bioreactor （SAnMBR）. The fate of AE and its acute and/or chronic impact on the anaerobic microbes were also analyzed. The results indicated that AE had an inhibitory effect to methane production potential （lag-time depends on the AE dosage） and the negative effect attenuated subsequently and methane production could recover at FIM ratio of 0.088-0.357. VFA measurement proved that AE was degraded into small molecular organic acids and then converted into methane at lower FIM ratio （FIM 〈 0.158）. After long-term acclimation, anaerobic microbe could cope with the stress of AE by producing more EPS （extracellular polymeric substances） and SMP （soluble microbial products） due to its self-protection behavior and then enhance its tolerance ability. However, the methane production potential was considerably decreased when AE was present in wastewater at a higher FIM ratio of 1.054. Higher AE amount and FIM ratio may destroy the cell structure of microbe, which lead to the decrease of methane production activity of sludge and methane production potential.

关键词： Anaerobic membrane bioreactor AnMBR F/M ratio Surfactant Wastewater Methane production Influence

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轴流压气机进气旋流畸变实验与仿真研究

风机技术 2017年第5期59卷 1-12页

作者：宋国兴李军周游天聂永正空军工程大学航空航天工程学院等离子体动力学重点实验室陕西西安710038

为深入分析旋流畸变问题,发现叶片式旋流畸变发生器产生旋流流场的机理和旋流畸变对压气机稳定性的影响机制,本文开展了旋流畸变发生器与压气机的耦合数值仿真。分析计算结果,认为叶尖脱落涡的叠加效应是产生旋流的主要机理,旋流结构对... 详细信息

为深入分析旋流畸变问题,发现叶片式旋流畸变发生器产生旋流流场的机理和旋流畸变对压气机稳定性的影响机制,本文开展了旋流畸变发生器与压气机的耦合数值仿真。分析计算结果,认为叶尖脱落涡的叠加效应是产生旋流的主要机理,旋流结构对转子叶尖区域的扰流作用是造成转子提前失速的重要原因。建立了S弯进气道仿真模型,通过对S弯进气道与高亚声速压气机进行耦合仿真计算,研究了S弯进气道出口旋流流场的形成机制,初步探讨了S弯进气道出口旋流流场对压气机稳定性的影响。S弯进气道出口形成的对涡结构靠近压气机机匣,这种局部的涡结构会影响部分转子叶片叶顶区域的流动结构,从而导致压气机失速边界右移。

关键词：压气机旋流畸变旋流畸变发生器仿真计算

Essential Oil from Inula britannica Extraction with SF-CO_2 and Its Antifungal Activity

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Journal of Integrative Agriculture 2013年第10期12卷 1791-1798页

作者： ZHAO Te GAO Fei zhou Lin SONG tian-you Henan Key Laboratory for Creation and Application of New Pesticides College of Plant Protection Henan Agricultural University

The aim of this study was to determine the extraction technique of supercritical fluid carbon dioxide（SF-CO 2） for the essential oil from Inula britannica flowers and its antifungal activities against plant pathogenic fungi for its potential application as botanical *** effects of factors,including extraction temperature,extraction pressure,SF-CO 2 flow rate,flower powder size,and time on the essential oil yield were studied using the single factor *** orthogonal experiment was conducted to determine the best operating conditions for the maximum extraction oil *** the optimum conditions,the maximum yield reached 10.01% at 40°C temperature,30 MPa pressure,60 mesh flower powder size,20 L h-1SF-CO 2 flow rate,and 90 min extraction *** antifungal activities of *** essential oil using the SF-CO 2 against the most important plant pathogenic fungi were also examined through in vitro and in vivo *** plant pathogenic fungi were inhibited to varying degrees at 1 mg mL-1concentration of the essential *** mycelial growth of Gaeumannomyces graminis *** was completely *** radial growths of Phytophthora capsici and Fusarium monilifome were also inhibited by 83.76 and 64.69%,*** addition,the essential oil can inhibit the spore germination of Fusarium oxysporum ***,Phytophthora capsici,Colletotrichum orbiculare,and Pyricularia grisea,and the corresponding inhibition rates were 98.26,96.54,87.89,and 87.35% *** present study has demonstrated that the essential oil of *** flowers extracted through the SF-CO 2 technique is one potential and promising antifungal agent that can be used as botanical fungicide to protect crops.

关键词： Inula britannica essential oil supercritical fluid carbon dioxide extraction optimization antifungal activity botanical fungicide