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Three-dimensionally ordered macro-porous Pt/TiO_2 catalyst used for water-gas shift reaction

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Journal of Natural Gas Chemistry 2008年第4期17卷 403-408页

作者： Hao liang yuan Zhang yuan Liu Department of Catalysis Science and Technology School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

Three-dimensionally ordered macro-porous （3DOM） Pt/TiO2 catalysts were prepared by template and impregnation methods, and the resultant samples were characterized by using TG-DTA, XRD, SEM, TEM, and TPR techniques. The catalytic performance for water-gas shift （WGS） reaction was tested, and the influences of some conditions, such as reduction temperature of catalysts, the amount of Pt loadings and space velocity on catalytic performance were investigated. It was shown that Pt particles were homogeneously dispersed on 3DOM TiO2. The reduction of TiO2 surface was important for the catalytic performance. The activity test results showed that the 3DOM Pt/TiO2 catalysts exhibited very good catalytic performance for WGS reaction even at high space velocity, which was owing to the better mass transfer of 3DOM porous structure besides the high intrinsic activity of Pt/TiO2.

关键词： three-dimensionally ordered macro-porous water-gas shift platinum titania

Discretization of Nonlinear Non-affine Time Delay Systems Based on Second-order Hold

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International Journal of Automation and computing 2014年第3期11卷 320-327页

作者： yuan-liang Zhang School of Mechanical Engineering Huaihai Institute of Technology Jiangsu Province Research and Development Institute of Marine Resources

When calculating the sampled-date representation of nonlinear systems second-order hold(SOH) assumption can be applied to improving the precision of the discretization results. This paper proposes a discretization method based on Taylor series and the SOH assumption for the nonlinear systems with the time delayed non-affine input. The mathematical structure of the proposed discretization method is explored. This proposed discretization method can provide a precise and finite dimensional discretization model for the nonlinear time-delayed non-affine system by keeping the truncation order of the Taylor series. The performance of the proposed discretization method is evaluated by doing the simulation using a nonlinear system with the time-delayed non-affine *** input signals, time-delay values and sampling periods are considered in the simulation to investigate the proposed *** simulation results demonstrate that the proposed method is practical and easy for time-delayed nonlinear non-affine *** comparison between SOH assumption with first-order hold(FOH) and zero-order hold(ZOH) assumptions is given to show the advantages of the proposed method.

关键词： Nonlinear system non-affine input discretization Taylor series second-order hold(SOH).

Endogenous/exogenous dual stimulation“ROS engineering”amplification combined with autophagy-augmented for efficient ferroptosis therapy

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Nano Research 2025年第1期18卷 597-606页

作者： Pengye Du Pengpeng Lei yuan liang Ran An Yi Wei Shuyu Liu Jianhao Zheng Hongjie Zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry Tsinghua UniversityBeijing 100084China

“Reactive oxygen species(ROS)engineering”is one of the most promising anti-tumor treatments developed in recent *** explosion of ROS will cause oxidative stress,thereby inducing tumor cell ***,ROS accumulation in tumor cells is eliminated by endogenous cellular self-regulation *** this work,a kind of endogenous/exogenous dual stimulation nanoagent noted as UMZC is *** reaction occurs between NH_(2)-MIL-88B(Fe)contained in UMZC and the overexpression of endogenous H_(2)O_(2)to generate ROS,amplified by endogenous H_(2)S of colon tumor *** addition,NH_(2)-MIL-88B(Fe)also functions to deplete glutathione(GSH)for stopping it from consuming *** nanoparticles at the core of UMZC convert near-infrared into visible light,which excites zinc phthalocyanine to initiate the photochemical reaction that generates more ROS,thus alleviating the lack of tissue penetration depth for visible *** agonist chitosan oligosaccharides induce enhancement of cellular autophagy for disrupting cellular metabolic stress and the resistance to oxidative stress of tumor cells,allowing“ROS engineering”to fully exert anti-tumor *** of ROS generation,GSH depletion,and induced cellular autophagy caused by nanoagents have promoting effects on the occurrence of ***,the nanoagents show the ability to effectively treat colon tumors.

关键词： reactive oxygen species(ROS)engineering upconversion nanoparticles cellular autophagy ferroptosis tumor therapy

Study on Critical,Modern Technology for Mining in Gassy Deep Mines

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Journal of China University of Mining and Technology 2007年第2期17卷 226-231页

作者： yuan liang Huainan Mining （Group） Co. Ltd. Huainan Anhui 232001 China

To achieve safe and highly efficient mining in the gassy, deep mines of the Huainan collieries simultaneous coal and gas extraction, and the corresponding ventilation methods were developed. This includes a set of mining procedures and principles which help insure safe and efficient production. Furthermore, green mining, meaning the comprehensive use of emitted gas, proper treatment of the environment and appropriate mine temperature control, is now standard. The concepts of modem mining and the principles of pressure relief are described. Coal-gas simultaneous ex- traction and multi-pressure relief techniques were developed which require a combination of surface and underground gas extraction. The application of Y-ventilation systems, of roadways retained along goafs, of stress control techniques for highly fragile mine roofs and of powerful, automatic and reliable mining equipment contributes to safe operation of modem deep mines. Operating parameters for these techniques are described and the results of their use discussed.

关键词： gassy deep mining modem mining intrinsic safety coal and gas simultaneous extraction green mining

Outlier item detection in bundle recommendation via the attention mechanism

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High-Confidence Computing

High-Confidence Computing 2024年第3期4卷 51-57页

作者： yuan liang School of Information Engineering Suqian UniversitySuqian 223800China Guangxi Key Laboratory of Trusted Software Guilin University of Electronic TechnologyGuilin 541004China

Bundle recommendation offers users more holistic insights by recommending multiple compatible items at ***,the intricate correlations between items,varied user preferences,and the pronounced data sparsity in combinations present significant challenges for bundle recommendation ***,current bundle recommendation methods fail to identify mismatched items within a given set,a process termed as‘‘outlier item detection’’.These outlier items are those with the weakest correlations within a *** them can aid users in refining their item *** the correlation among items can predict the detection of such outliers,the adaptability of combinations might not be adequately responsive to shifts in individual items during the learning *** limitation can hinder the algorithm’s *** tackle these challenges,we introduce an encoder–decoder architecture tailored for outlier item *** encoder learns potential item correlations through a self-attention ***,the decoder garners efficient inference frameworks by directly assessing item *** have validated the efficacy and efficiency of our proposed algorithm using real-world datasets.

关键词： Bundle recommendation Outlier item detection Attention mechanism Decoder encoder

A historical evaluation of Chinese tongue diagnosis in the treatment of septicemic plague in the pre-antibiotic era, and as a new direction for revolutionary clinical research applications

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Journal of Integrative Medicine 2018年第3期16卷 141-146页

作者： Ioannis Solos yuan liang Department of Orthopedics and Traumatology Guangzhou Zhongxing Sports Trauma Hospital Institute of Basic Theory in Chinese Medicine China Academy of Chinese Medical Sciences

Chinese tongue diagnosis was initially developed to quickly and efficiently diagnose and prescribe medicine, while at the same time allowing the doctor to have minimal contact with the patient. At the time of its compiling, the spread of Yersinia pestis, often causing septicaemia and gangrene of the extremities,may have discouraged doctors to come in direct contact with their patients and take the ***, in recent decades, modern developments in the field of traditional Chinese medicine, as well as the spread of antibiotics in conjunction with the advancements of microbiology, have overshadowed the original purpose of this methodology. Nevertheless, the fast approaching post-antibiotic era and the development of artificial intelligence may hold new applications for tongue diagnosis. This article focuses on the historical development of what is the world＇s earliest tongue diagnosis monograph, and discusses the directions that such knowledge may be used in future clinical research.

关键词： Tongue diagnosis Chinese medicine Yersinia pestis Literature research

Images of Azurin Protein Studied by AFM

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Chemical Research in Chinese Universities 2004年第4期20卷 437-439页

作者： WANG Nan WANG yuan-liang Biomedical Engineering Department Chongqing UniversityChongqing 400044P.R.China Inorganic Chemistry Department South Parks RoadUniversity of OxfordOX13QRUK

Azurins, a wild type and a genetically mutant K27 altered one, were immobilized on annealed gold surface and investigated by means of atomic force microscopy. It was found that the surface coverage and height distribution of the adsorbed protein molecules are different from each other, which is possibly the result of the different orientation on the surface. It is believed that the wild type azurin is connected to gold surface by the disulphide bridge; while the mutant, K27C, might be through the thiol groups of the cysteine residues on their surface.

关键词： Atomic force microscopy Protein Azurin Topography

Monolithic macroporous catalysts—a new route for miniaturization of water-gas shift reactor

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Journal of Natural Gas Chemistry 2009年第4期18卷 436-440页

作者： Hao liang yuan Zhang yuan Liu Department of Catalysis Science and Technology School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

Monolithic macroporous Pt/CeO2/Al2O3 catalysts were prepared using concentrated emulsions synthesis route, and the obtained samples were characterized with SEM, TG, TEM, XRD and TPR techniques. These monolithic catalysts were applied to water gas shift （WGS） reaction in reformed gases. The SEM and TEM results indicated that the monoliths possessed macroporosity, and that the platinum particles homogeneously dispersed on the supports with the particle size in the range of 1-2 nm. The reducibility of the catalysts was characterized by TPR method, and it was shown that the monolithic PtOx/CeO2/Al2O3 exhibited the similar reducibility property to that of the particle PtOx/CeO2 reported in literatures. The CO conversion over the monolithic catalysts is higher than that over micro-reactor catalysts for WGS reaction in the reformed gases conditions, indicating that the monolithic macroporous catalysts is a potential new route for miniaturization of WGS reactor.

关键词： macroporous monolith miniaturization water gas shift platinum

Multiview SVBRDF capture from unified shape and illumination

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Visual Informatics 2023年第3期7卷 11-21页

作者： liang yuan Issei Fujishiro Keio University Japan

This paper proposes a stable method for reconstructing spatially varying appearances (SVBRDFs) frommultiview images captured under casual lighting conditions. Unlike flat surface capture methods, ourscan be applied to surfaces with complex silhouettes. The proposed method takes multiview images asinputs and outputs a unified SVBRDF estimation. We generated a large-scale dataset containing themultiview images, SVBRDFs, and lighting appearance of vast synthetic objects to train a two-streamhierarchical U-Net for SVBRDF estimation that is integrated into a differentiable rendering networkfor surface appearance reconstruction. In comparison with state-of-the-art approaches, our methodproduces SVBRDFs with lower biases for more casually captured images.

关键词： Appearance modeling SVBRDF Image processing