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On Some n-C2 and Strongly C2 Extensions

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Algebra Colloquium 2020年第3期27卷 545-562页

作者： Farid Kourki Jianlong Chen wenxi li Centre Regional des Metiers de「Education et de la Formation(CRMEF)-Tanger Annexe de Larache B.P.4063LaracheMorocco Department of Mathematics Southeast UniversityNanjing 210096China School of Mathematics and Physics Anhui University of Technology Ma^nshanAnhui 243002China

Let R be a ring and n be a positive *** R is called a left n-C2-ring(strongly left C2-ring)if every n-generated(finitely generated)proper right ideal of R has nonzero left *** discuss some n-C2 and strongly C2 extensi... 详细信息

关键词： n-self-associated module self-associated module n-C2-ring strongly C2-ring

Application of intelligent rehabilitation equipment in occupational therapy for enhancing upper limb function of patients in the whole phase of stroke

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Medicine in Novel Technology and Devices 2021年第4期12卷 8-15页

作者： wenxi li Dongsheng Xu Yueyang Integrated Chinese and Western Medicine Hospital Shanghai University of Traditional Chinese MedicineShanghaiChina Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation Ministry of EducationShanghaiChina

Stroke was one of the leading causes of death in the Chinese population in *** stroke survivors may suffer from different levels of disabilities,which prevents them from returning to their daily *** decreased upper limb function is considered as the principal factor that makes the patients have less access to their activities of daily *** therapy(OT),aiming to enhance patients'functional performances and improve the participation in daily activities is usually applied from the onset of ***,conventional OT intervention still has several problems that need to be solved,such as the inefficient use of human resources,inadequate upper limb functional training and non-continuous OT *** address these difficulties and improve the patients'functional outcomes,intelligent rehabilitation equipment is combined with OT through evaluation and *** on this combination,OT can be provided in health care facilities,home,and community for patients with all phases of *** combination promotes the transition of OT to digitization,intelligence and homogenization.

关键词： Stroke Occupational therapy Rehabilitation devices Robotic technology Virtual reality Home rehabilitation

Fertilization regimes affect the soil biological characteristics of a sudangrass and ryegrass rotation system

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Science China(life Sciences) 2011年第6期54卷 572-579页

作者： li wenxi LU JianWei li FangBai WANG Yan LU JunMing li XiaoKun College of Resources and Environment Huazhong Agricultural UniversityWuhan 430070China Guangdong Institution of Eco-environment and Soil Science Guangzhou 510650China Agricultural Research Institution Datonghu Administration District of Jingzhou CityJingzhou 433221China

The sudangrass (Sorghum sudanense) and ryegrass (Lolium multiflorum L.) rotation is an intensive and new cropping system in Central *** management practices in this rotation system may influence soil fertility,the important aspects of which are soil biological properties and *** sensitive soil biological properties and quality indicators,soil microbial community activity,microbial biomass,enzyme activities,soil organic matter (SOM) and total N resulting from different fertilization regimes in this rotation system were studied through a four-year field experiment from April 2005 to May *** included control (CK),fertilizer phosphorus and potassium (PK),fertilizer nitrogen and potassium (NK),fertilizer nitrogen and phosphorus (NP) and a fertilizer nitrogen,phosphorus and potassium combination (NPK).Soil microbial community activities in the NK,NP and NPK treatments were significantly lower than those in the CK and PK treatments after the sudangrass and ryegrass *** highest microbial biomass C,microbial biomass N,SOM,total N,sucrase and urease activities were found in the NPK treatment,and these soil quality indicators were significantly higher in the NK,NP and NPK treatments than in the PK and CK *** microbial biomass and enzyme activities were positively associated with SOM in the sudangrass and ryegrass rotation system,indicating that fertilization regimes,especially N application,reduced microbial community activity in the *** fertilization regimes will increase microbial biomass,enzyme activity and SOM and improve soil fertility.

关键词： microbial activity microbial biomass carbon and nitrogen enzyme fertilization regimes

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Extraction and identifcation of spectrum characteristics of coal and rock hydraulic fracturing and uniaxial compression signals

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International Journal of Coal Science & Technology 2023年第4期10卷 1-16页

作者： Ya′nan Qian Quangui li Qianting Hu Zhizhong Jiang Ronghui liu Jie li wenxi li Changjun Yu State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing 400044China School of Resources and Safety Engineering Chongqing UniversityChongqing 400044China State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines(Anhui University of Science and Technology) Huainan 232001China Mining College of Guizhou University Guiyang 550025GuizhouChina China Coal Technology and Engineering Group Shenyang Research Institute Fushun 113122China

Microseismic(MS)events generated during coal and rock hydraulic fracturing(HF)include wet events caused by fracturing fuid injection,in addition to dry events caused by stress *** mixture of these two events makes efective fracturing MS events pickup *** study is based on physical experiments of diferent coal and rock HF and uniaxial *** diferences of waveform characteristic parameters of various coal and rock ruptures were analyzed using the Hilbert–Huang transform,leading to some useful *** phase characteristics of the acoustic emission(AE)energy difered signifcantly and responded well to the pumping pressure *** AE waveforms of HF exhibit similar energy and frequency distribution characteristics after Empirical mode *** main frequency bands for coal,sandstone,and shale samples are 100–300 kHz,while the mudstone sample is in the range of 50–150 *** decay ratios for coal,sandstone,shale and mudstone samples are 0.78,0.83,0.67 and 0.85,*** compared to the uniaxial compression test,the main frequency bands of HF were reduced for coal,sandstone and mudstone samples,whereas shale remained essentially *** duration,instantaneous energy,and total energy of the HF waveform are smaller than those of uniaxial compression,while the decay ratio is greater,especially for the mudstone *** waveform characteristic parameters,trained using the multilayer perceptron neural network,can efectively identify HF and uniaxial compression events with an accuracy of 96%.

关键词： Hydraulic fracturing Uniaxial compression Hilbert-Huang transform Acoustic emission Microseismic

Mechanoluminescent Materials Enable Mechanochemically Controlled Atom Transfer Radical Polymerization and Polymer Mechanotransduction

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Research 2024年第3期2023卷 97-104页

作者： Zexuan li Zhenhua Wang Chen Wang wenxi li Wenru Fan Ruoqing Zhao Haoyang Feng Dengfeng Peng Wei Huang Frontiers Science Center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi’an 710072China. School of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China.

Organic mechanophores have been widely adopted for polymer ***,most examples of polymer mechanotransduction inevitably experience macromolecular chain rupture,and few of them mimic mussel’s mechanochemical regeneration,a mechanically mediated process from functional units to functional materials in a controlled *** this paper,inorganic mechanoluminescent(ML)materials composed of CaZnOS-ZnS-SrZnOS:Mn2+were used as a mechanotransducer since it features both piezoelectricity and *** utilization of ML materials in polymerization enables both mechanochemically controlled radical polymerization and the synthesis of ML polymer *** procedure features a mechanochemically controlled manner for the design and synthesis of diverse mechanoresponsive polymer composites.

关键词： chemically polymerization luminescent

A"three musketeers"tactic for inclining interferon-γ as a comrade-in-arm to reinforce the synergistic-tumoricidal therapy

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Nano Research 2022年第4期15卷 3458-3470页

作者： wenxi li lisi Xie Yi Ju Zhan Zhang Bei li Jie li Wei Sang Guohao Wang Hao Tian Yunlu Dai Cancer Centre and Institute of Translational Medicine Faculty of Health SciencesUniversity of MacaoMacao 999078China MOE Frontiers Science Center for Precision Oncology University of MacaoMacao 999078China School of Health and Biomedical Sciences RMIT UniversityBundooraVictoria 3083Australia

Interferon-γ(IFN-γ),secreted by activated T cells predominantly,plays a crucial performance in the tumoricidal immune ***,a high level of IFN-γseverely ignites the immunosuppressive response,especially by increasing the expression of immune checkpoint programmed death-ligand 1(PD-L1)and immunoregulatory enzyme indoleamine 2,3-dioxygenase 1(IDO-1).Herein,we have explored a versatile IFN-γ-nano-integrator(aPD-L1-SH@Ce6@NLG919-PEG,simplified as CNDP)to establish a positive anti-tumor feedback loop to amplify the IFN-γ-mediated tumoricidal *** this nanointegrator,photosensitizer chlorin e6(Ce6)mediates photodynamic therapy(PDT)to re-shape immunogenicity and activate the adaptive immune response,followed by the secretion of high-level IFN-γto struggle tumor ***-1 inhibitor(NLG919)afterwards mitigates the immunosuppressive behavior of IFN-γby neutralizing the function of *** turn“waste”into wealth,anti-PD-L1(aPD-L1)antibodies are technically integrated into the nano-integrator to propel the precise attack of breast cancer through ascending PD-L1 ***,this“three musketeers”nano-integrator tumoricidal tactic may give a unique insight into the clinical anti-tumor therapy.

关键词： interferon-γ(IFN-γ) anti-PD-L1(aPD-L1) IDO-1 inhibitor(NLG919) neutralization tumoricidal positive anti-tumor feedback loop

Classification of Young Females' Body Shape in Jiaodong Area Based on 3D Morphological Characteristics

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Journal of Donghua University(English Edition) 2022年第5期39卷 475-484页

作者： li wenxi ZHAO Meihua College of Textiles and Clothing Qingdao UniversityQingdao 266071China

To improve the classification method of body type, 103 young female college students in Jiaodong area(Shandong, China) were measured by a 3 D body scanning system, and variables of upper body parts were selected and analyzed by SPSS software. According to the indices such as the chest ratio, the chest sagittal diameter ratio, and the shoulder angle, the tested population was quickly clustered into six categories by the classification method of “size feature+shape index+front and back indices”, which were divided into flat chest body, graceful body, breast augmentation body, normal body, convex back body, and flat body. The proportion of various body types and classification rules were obtained. According to the classification rules, 103 samples and 15 new females’ body data were analyzed and verified. Finally, according to the descriptive statistical analysis of upper body-related indicators of young female in this area, the height and the chest circumference were selected as independent variables, regression analysis was carried out on 11 related indicators, and the mapping relationship between height and chest circumference was studied, which provided a mathematical model for the design of fit clothing structure of young females in Jiaodong area.

关键词： young female 3D anthropometry body shape characteristics type classification regression analysis

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Relative(b, c)-Inverses with Respect to a Ring Endomorphism

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Journal of Mathematical Research with Applications 2023年第4期43卷 433-446页

作者： Jun JIAO wenxi li liang ZHAO School of Mathematics and Physics Anhui University of Technology

We study the relative properties of(b, c)-inverses with respect to a ring endomorphism.A new class of generalized inverses named α-(b, c)-inverse is introduced and studied in a more general setting. We show by giving an example that(b, c)-inverses behave quite differently fromα-(b, c)-inverses. The condition that an α-(b, c)-invertible element is precisely a(b, c)-invertible element is investigated. We also study the strongly clean decompositions for α-(b, c)-*** well-known results on(b, c)-inverses are extended and unified.

关键词： α-(b, c)-inverse Cline’s formula Jacobson’s lemma strongly clean decomposition

Regional Distribution and Prospects of Potash in China

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Acta Geologica Sinica(English Edition) 2011年第1期85卷 17-50页

作者： ZHENG Mianping ZHANG Yongsheng YUAN Heran liU Xifang CHEN wenxi li Jinsuo R＆D Center for Saline Lake and Epithermal Deposit Chinese Academy of Geological Sciences Key Laboratory of Saline Lake Resources and Environment Ministry of Land and Resources Beijing 100037

China was formed by amalgamation of several small continental blocks （cratons）, micro, blocks and orogenic belts in different paleoclimatic settings. It may be correlated with other continental blocks but has its own specific characteristics; therefore the tectonic environments of China＇s marine and continental saline basins and salt, and potash, forming environment have some specific characteristics： multiple phases of salt formation, difference in salt, forming ages, migration and concentration of salt, forming processes and diversity of component materials, as well as small sizes of marine saline basins and great changes of saline basins in the late stage and occurrence of abundant liquid mineral resources. The nature of the tectonic basement exerted a key controlling effect on the formation of potash basins. The stable tectonic region was favorable for potash concentration in a quasi, stable region, and quasi, and the quasi-stable region was favorable for salt concentration and potash formation in a local stable tectonic region. Most China＇s major ancient saline basins occur in ＂quasi, cratons （continental block）＂; especially all the marine saline basins occur in continental blocks with the Precambrian basement. These regions are the key ones for potash search. Most relatively large, scale soluble salt deposits are developed in relatively stable continental nuclei. According to the characteristics of the tectonic domains where China＇s salt, forming basins are located, the North China, Yangtze and Tarim, Qaidam salt minerogenetic domains and the northern Qiangtang, western Yunnan salt minerogenetic belt may be distinguished. Their salt and potash prospects will be discussed separately.

关键词： regional analysis of potash structural basement-controlled potash formation specific saltand potash-forming characteristics salt minerogenetic domain potash prospects

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