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Control Theory and Technology 2024年第3期22卷 343-344页

作者： Yiguang Hong shengwei Mei Ping Yang Department of Control Science and Engineering Tongji UniversityShanghai200092China Shanghai Research Institute for Intelligent Autonomous Systems Tongji UniversityShanghai200092China Department of Electrical Engineering and Applied Electronics Technology Tsinghua UniversityBeijing100084China School of Electric Power South China University of TechnologyGuangzhou510640GuangdongChina

It is our great pleasure to organize this special issue in Control Theory and Technology in honor of the 90th birthday of Professor Huashu *** is one of the pioneers in control theory and applications in China,and has made many truly outstanding contributions to the field including nonlinear dynamics and control,intelligent control,robotics and complex *** is no surprise that she was selected as a representative introduced significantly in“Women in Control”of IEEE Control Systems Magazine.

关键词： control honor analysis

The nitrogen transformation behavior based on the pyrolysis products of wheat stra

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Chinese Journal of Chemical Engineering 2024年第7期71卷 58-65页

作者： Shun Guo Yunfei Li shengwei Tang Tao Zhang School of Chemical Engineering Sichuan UniversityChengdu 610065China

In order to provide basic design parameters for the industrial pyrolysis process,the transformation behavior of nitrogen was investigated using wheat straw as raw *** distributions of nitrogen in pyrolysis char,oil,and gas were obtained and the nitrogenous components in the products were analyzed systematically by X-ray photoelectron spectroscopy(XPS),pyrolysis-gas chromatography/mass spectrometry(Py-GC/MS)and thermogravimetric-Fourier transform infrared spectrometry(TG-FTIR).The nitrogen distribution ranges of the pyrolysis char,oil,and gas were 37.34%–54.82%,32.87%–40.94%and 10.20%–28.83%,*** nitrogen was retained in char at lower pyrolysis temperature and the nitrogen distribution of oil was from rise to decline with increasing *** most abundant N-containing compounds in three-phase products were pyrrole-N,amines,and HCN,*** addition,the transformation mechanism of nitrogen from wheat straw to pyrolysis products was concluded.

关键词： Pyrolysis Nitrogen transformation Wheat straw Py-GC/MS TG-FTIR

Shear resistance characteristics and influencing factors of root-soil composite on an alpine metal mine dump slope with different recovery periods

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Journal of Mountain Science 2024年第3期21卷 835-849页

作者： PANG Jinghao LIANG Shen LIU Yabin LI shengwei wang Shu ZHU Haili LI Guorong HU Xiasong Department of Geological Engineering Qinghai UniversityXining 810016China Key Laboratory of Genozoic Resource&Environment in North Margin of the Tibetan Plateau Xining 810016China

Artificial vegetation restoration is the main measure for vegetation restoration and soil and water conservation in alpine mine dumps on the Qinghai-Tibet Plateau,***,there are few reports on the dynamic changes and the influencing factors of the soil reinforcement effect of plant species after artificial vegetation restoration under different recovery *** selected dump areas of the Delni Copper Mine in Qinghai Province,China to study the relationship between the shear strength and the peak displacement of the root-soil composite on the slope during the recovery period,and the influence of the root traits and soil physical properties on the shear resistance characteristics of the root-soil composite via in situ direct shear *** results indicate that the shear strength and peak displacement of the rooted soil initially decreased and then increased with the increase of the recovery *** shear strength of the rooted soil and the recovery period exhibited a quadratic function *** is no significant function relationship between the peak displacement and the recovery *** positive correlations(P0.05)between the shear strength of the root-soil composite and the root length density,and the root volume ratio of the coarse roots to the fine roots.A significant negative linear correlation(P0.05)with the root traits,other soil physical property indices(the moisture content and dry density of the soil),and slope *** coarse-grain content is the main factor controlling the peak displacement of the rooted soil.

关键词： Alpine mine dump Artificial vegetation restoration period Rooted soil Shear resistance characteristics Root traits Soil physical properties

Risk Constrained Self-scheduling of AA-CAES Facilities in Electricity and Heat Markets:A Distributionally Robust Optimization Approach

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1159-1167页

作者： Zhiao Li Laijun Chen Wei Wei shengwei Mei Department of Electrical Engineering Tsinghua UniversityBeijing 100084China New Energy(Photovoltaic)Industry Research Center Qinghai UniversityXining 810016China IEEE

Advanced adiabatic compressed air energy storage(AA-CAES)has the advantages of large capacity,long service time,combined heat and power generation(CHP),and does not consume fossil fuels,making it a promising storage technology in a low-carbon *** appropriate self-scheduling model can guarantee AA-CAES’s profit and attract ***,very few studies refer to the cogeneration ability of AA-CAES,which enables the possibility to trade in the electricity and heat markets at the same *** this paper,we propose a multimarket self-scheduling model to make full use of heat produced in *** volatile market price is modeled by a set of inexact distributions based on historical data through-***,the self-scheduling model is cast as a robust risk constrained program by introducing Stackelberg game theory,and equivalently reformulated as a mixed-integer linear program(MILP).The numerical simulation results validate the proposed method and demonstrate that participating in multienergy markets increases overall *** impact of uncertainty parameters is also discussed in the sensibility analysis.

关键词： Advanced adiabatic compressed air energy storage(AA-CAES) conditional value at risk(CVaR) distributionally robust optimization(DRO) heat market self-scheduling Stackelberg game

Prediction of coal structure using particle size characteristics of coalbed methane well cuttings

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International Journal of Mining Science and Technology 2019年第2期29卷 209-216页

作者： Shuaifeng Lv shengwei wang Rui Li Guoqing Li Ming Yuan Jiacheng wang Faculty of Earth Resources China University of Geosciences (Wuhan) State Key Laboratory of Coal and CBM Co-mining Cockrell School of Engineering University of Texas at Austin

Severely deformed coal seams barely deliver satisfactory gas production. This research was undertaken to develop a new method to predict the positions of deformed coals for a horizontal CBM well. Firstly, the drilling cuttings of different structure coals were collected from a coal mine and compared. In light of the varying cuttings characteristics for different structure coals, the coal structure of the horizontally drilled coal seam was predicted. And the feasibility of this prediction method was discussed. The result shows that exogenetic fractures have an important influence on the deformation of coal seams. The hardness coefficient of coal decreases with the deformation degree in the order of primary structural, cataclastic and fragmented coal. And the expanding-ratio of gas drainage holes and the average particle size of cuttings increase with the increase of the deformation degree. The particle size distribution of coal cuttings for the three types of coals is distinctive from each other. Based on the particle size distribution of cuttings from X-2 well in a coal seam, six sections of fragmented coal which are unsuitable for perforating are predicted. This method may benefit the optimization of perforation and fracturing of a horizontal CBM well in the study area.

关键词： Coal structure Gas drainage boreholes Particle size distribution of coal cuttings Directional CBM well Optimization of perforation

新型预防管理模式-多学科医患交互在行心脏瓣膜术后患者静脉血栓栓塞症中的应用效果

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中国医药导报 2024年第6期21卷 151-154页

作者：何萌来永强张喜维王生伟朱治辉徐亚静徐丽丽首都医科大学附属北京安贞医院心脏外科中心北京100029

目的探讨新型预防管理模式-多学科医患交互在行心脏瓣膜术后患者静脉血栓栓塞症(VTE)中的效果。方法纳入2021年1月至2022年12月首都医科大学附属北京安贞医院结构性心脏外科中心接受心脏瓣膜手术患者1 200例,采用随机数字表法将其分为... 详细信息

目的探讨新型预防管理模式-多学科医患交互在行心脏瓣膜术后患者静脉血栓栓塞症(VTE)中的效果。方法纳入2021年1月至2022年12月首都医科大学附属北京安贞医院结构性心脏外科中心接受心脏瓣膜手术患者1 200例,采用随机数字表法将其分为对照组和干预组,各600例。对照组采用基本预防措施,干预组在对照组基础上实施新型预防管理模式-多学科医患交互措施。观察两组围手术期VTE的发生率,心脏瓣膜术后肺栓塞发生率和全因死亡率。结果干预后,干预组院内DVT发生率低于对照组,差异有统计学意义(P0.05)。干预组VTE质控指标均高于对照组,差异有统计学意义(P<0.05)。结论新型VTE预防管理模式-多学科医患交互能够有效降低心脏瓣膜手术患者VTE的发生率,为心脏外科术后VTE的预防管理提供了重要的依据,并为改进围手术期管理提供了有益的参考。

关键词：心脏瓣膜手术静脉血栓栓塞症质量改善并发症

A Petrological, Geochemical, and Geochronological Study of Shuikou Ultrabasic Rock Mass in Wuding County, Yunnan Province, China

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Open Journal of Geology 2022年第8期12卷 587-612页

作者： Bin Yang Zizheng wang Qing Zhou Xiaoliang Cui shengwei wang Chengdu Center China Geological Survey Chengdu China

Geotectonically, the Shuikou ultrabasic-basic rock mass is located on the western margin of the Yangtze Platform. As revealed by field geological surveys, the Shuikou rock mass intrudes into the quartz sandstones of the Sinian Chengjiang Formation (Zac). It is dominated by pyroxenites and can be roughly divided into four lithofacies zones, namely gabbros at the outermost periphery and fine-, medium-, and coarse-grained pyroxenites from margin to center. With the transition from pyroxenites to gabbros, the Shuikou rock mass features gradual enrichment in silica and alkali overall, an increase in ΣREE and (La/Yb)N ratio, and a decrease in δEu values and Eu/Sm ratio, indicating that the Shuikou rock mass was formed from the continuous differentiation and crystallization of consanguineous magma and that low-degree partial melting occurred meanwhile. According to the U-Pb baddeleyite geochronology, the crystallization age of the Shuikou rock mass is 210.7 ± 3 Ma (MSWD = 1.01). Based on this, as well as the analysis of geochemical characteristics, the Shuikou rock mass occurred in a continental intraplate tensional environment, this is closely related to the activities of the Emeishan mantle plume during the same period.

关键词： Shuikou Rock Mass Petrological Characteristics Geochemical Characteristics Geochronology Wuding County Yunnan Province

Classification and rating of disintegrated dolomite strata for slope stability analysis

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2552-2562页

作者： Wenlian Liu Xinyue Gong Jiaxing Dong Hanhua Xu Peixuan Dai shengwei Zhang Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co. Ltd.Kunming650051China Key Laboratory of Geotechnical Engineering and Geological Disasters of Yunnan Province Kunming650051China Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming650500China

Although disintegrated dolomite,widely distributed across the globe,has conventionally been a focus of research in underground engineering,the issue of slope stability issues in disintegrated dolomite strata is gaining increasing *** is primarily due to their unique properties,including low strength and loose *** methods for evaluating slope stability,such as basic quality(BQ)and slope stability probability classification(SSPC),do not adequately account for the poor integrity and structural fragmentation characteristic of disintegrated *** address this challenge,an analysis of the applicability of the limit equilibrium method(LEM),BQ,and SSPC methods was conducted on eight disintegrated dolomite slopes located in Baoshan,Southwest ***,conflicting results were ***,this paper introduces a novel method,SMRDDS,to provide rapid and accurate assessment of disintegrated dolomite slope *** method incorporates parameters such as disintegrated grade,joint state,groundwater conditions,and excavation *** findings reveal that six slopes exhibit stability,while two are considered partially ***,the proposed method demonstrates a closer match with the actual conditions and is more time-efficient compared with the BQ and SSPC ***,due to the limited research on disintegrated dolomite slopes,the results of the SMRDDS method tend to be conservative as a safety *** conclusion,the SMRDDS method can quickly evaluate the current situation of disintegrated dolomite slopes in the *** contributes significantly to disaster risk reduction for disintegrated dolomite slopes.

关键词： Disintegrated dolomite slope Basic quality(BQ) Slope stability probability classification (SSPC) Rock mass quality classification Limit equilibrium method(LEM)

Analysis of the visible fracture system of coalseam in Chengzhuang Coalmine of Jincheng City,Shanxi Province

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Chinese Science Bulletin 2005年第S1期50卷 45-51页

作者： shengwei wang Guangjiu Hou Ming Zhang Qinping Sun China Univ Geosci Fac Resources Wuhan 430074 Peoples R China

In No. 3 coalseam of Chengzhuang Coalmine of Jincheng City, there exists the visible fracture system consisting of joints, gas-expanding fractures and cleats. The gas-expanding fractures develop mainly in the bright coal sub-layer and cleats, in the vitrain and bright coal. The joints fall into two types, one developing in the coalseam and the other cutting through the whole coalseam and entering into the top and bottom rock layer. The development direction of joints is basically similar to that of gas-expanding fractures: NNE and NNW. The formation of the visible fracture system is classified as the stage of the development of cleat fissures in the coalification period, the stage of the full development of cleats and the formation of gas-expanding fractures in the second coalification period and the stage of the formation of joints by structural function. There is the spatial unhomoge-neity in three dimensions for the visible fracture system of the coal seam in Chengzhuang Coalmine: the regular distribution of the visible fractures as groups in the plane and the coal sub-layer with high permeability rate in profile. The research findings of the visible fracture system of coal seam can be applied to the drilling of the coalbed methane and to heightening the let-off efficiency of coalseam gas.

关键词： the visible fracture system of coal seam development character origin coalbed permeability gas let-off of coalseam. DOI: 10.1360/98zk0008

Fiber-Optic Surface Plasmon Resonance Sensor With Multi-Alternating Metal Layers for Biological Measurement

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Photonic Sensors 2013年第3期3卷 202-207页

作者： Yanjie wang shengwei MENG Yuzhang LIANG Lixia LI Wei PENG College of Physics and Optoelectrical Engineering Dalian University of Technology Dalian 116023 China

Optical fiber based SPR sensors have attracted more and more attention due to their unique advantages over the prism-based SPR sensors. A novel fiber-optic SPR sensor with multi-alternating metal layers for biochemical analysis is presented in this paper. Based on the fundamental SPR theory of the fiber optic sensing technology, we theoretically investigated the effects of the existence of alternating layers deposited on sensing region SPR wavelength changes. The emphasis was placed on the numerical simulation of the fiber-optic SPR sensor’s sensitivity which could be affected by its technical parameters such as the metal thickness, number of alternating layers. Results showed that, compared to the normal SPR sensor with the single metal layer, the proposed sensor had a wider detecting range of the refractive index and higher sensitivity, which can find applications in biological analysis.

关键词：光纤SPR传感器表面等离子体共振金属层生物测量光纤传感技术生化分析波长变化数值模拟