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Computing PUR of Zero-Dimensional Ideals of Breadth at Most One

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Journal of Systems Science & Complexity 2021年第6期34卷 2396-2409页

作者： pan jian SHANG Baoxin LI Zhe ZHANG Shugong School of Mathematics Key Laboratory of Symbolic Computation and Knowledge Engineering(Ministry of Education)Jilin UniversityChangchun 130012China College of Science Northeast Electric Power UniversityJilin 132012China School of Science Changchun University of Science and TechnologyChangchun 130022China

In this paper,for a zero-dimensional polynomial ideal I,the authors prove that k[x_(1),x_(2),…,x_(n)]/I is cyclic if and only if the breadth of I is 0 or ***,the authors present a new algorithm to compute polynomial ... 详细信息

关键词： Cyclic basis Grobner basis polynomial univariate representation separating element

Adipose-derived stem cell therapy shows promising results for secondary lymphedema

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World Journal of Stem Cells 2020年第7期12卷 612-620页

作者： Li-Ru Hu jian pan State Key Laboratory of Oral Diseases West China College of StomatologySichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Oral and Maxillofacial Surgery West China Hospital of StomatologySichuan UniversityChengdu 610041Sichuan ProvinceChina

Lymphedema is mainly identified by progressive soft tissue swelling in impaired lymphatic *** lymphedema attributed to cancer therapy,parasite infection,and trauma remains a serious global *** with lymphedema suffer swelling,pain,and fatigue,with the dysfunction of the deformed extremities reducing the quality of life and increasing the risk of infection and ***-derived stem cells(ADSCs)possess prominent regenerative potential to differentiate into multilineage cells,and produce various lymphangiogenic factors,making ADSC therapy a promising approach for *** development of lymphedema consists of local inflammation,the fibrosis of lymphatic vessels,and the deposition of adipose *** animal models do not mimic the chronic inflammation environment,therefore suitable models are required in further *** signal pathways and molecular mechanisms in physiological and pathological lymphagiogenesis remain *** previous animal and human trials,ADSC therapy reduced edema in varying degrees.A larger number of trials with larger samples and longer follow-up periods are required to verify the efficiency and feasibility of ADSC *** are of easy availability and immune exemption,making them a candidate for lymphedema *** ADSCs enhance malignant characteristics or trigger the malignant change deserves further exploration and study before ADSC therapy can be made widely available.

关键词： Secondary lymphedema Adipose-derived stem cells Lymphangiogenesis Stem cells Cell therapy Lymphatic regeneration

Extracellular vesicles:Emerged as a promising strategy for regenerative medicine

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World Journal of Stem Cells 2023年第4期15卷 165-181页

作者： Dian-Ri Wang jian pan State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Oral and Maxillofacial Surgery West China Hospital of StomatologySichuan UniversityChengdu 610041Sichuan ProvinceChina

Cell transplantation therapy has certain limitations including immune rejection and limited cell viability,which seriously hinder the transformation of stem cellbased tissue regeneration into clinical *** vesicles(EVs)not only possess the advantages of its derived cells,but also can avoid the risks of cell *** are intelligent and controllable biomaterials that can participate in a variety of physiological and pathological activities,tissue repair and regeneration by transmitting a variety of biological signals,showing great potential in cell-free tissue *** this review,we summarized the origins and characteristics of EVs,introduced the pivotal role of EVs in diverse tissues regeneration,discussed the underlying mechanisms,prospects,and challenges of *** also pointed out the problems that need to be solved,application directions,and prospects of EVs in the future and shed new light on the novel cell-free strategy for using EVs in the field of regenerative medicine.

关键词： Mesenchymal stem cells Extracellular vesicles Regenerative medicine Cellfree strategy

Algorithmic cooling based on cross-relaxation and decoherence-free subspace

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Science China(Physics,Mechanics & Astronomy) 2020年第7期63卷 47-57页

作者： Heng Yan Wang jian pan Wen Qiang Zheng XinHua Peng Department of Physics Zhejiang University of Science and TechnologyHangzhou 310023China Hefei National Laboratory for Physical Sciences at the Microscale Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Microscale Magnetic Resonance University of Science and Technology of ChinaHefei 230026China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center for Bio-Med Physics Information Technology College of ScienceZhejiang University of TechnologyHangzhou 310023China

Heat-bath algorithmic cooling(HBAC)has been proven to be a powerful and effective method for obtaining high polarization of the target *** cooling upper bound has been recently found using a specific algorithm,the partner pairing algorithm(PPAHBAC).It has been shown that by including cross-relaxation,it is possible to surpass the cooling ***,by combining cross-relaxation and decoherence-free subspace,we present a two-qubit reset sequence and then generate a new algorithmic cooling(AC)technique using irreversible polarization compression to further surpass the *** proposed two-qubit reset sequence can prepare one of the two qubits to four times the polarization of a single-qubit reset operation in PPA-HBAC for low *** the qubit number is large,the cooling limit of the proposed AC is approximately five times as high as the *** results reveal that cross-relaxation and decoherence-free subspace are promising resources to create new AC for higher polarization.

关键词： algorithmic cooling polarization enhancing cross-relaxation decoherence-free subspace

Surface reaction of Bacillus cereus biomass and its biosorption for lead and copper ions

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Journal of Environmental Sciences 2007年第4期19卷 403-408页

作者： pan jian-hua LIU Rui-xia TANG Hong-xiao State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China.

In this study, the surface chemical functional groups of Bacillus cereus biomass were identified by Fourier transform infrared （FTIR） analytical technique. It had been shown that the B. cereus cells mainly contained carboxyl, hydroxyl, phosphate, amino and amide functional groups. The potentiometric titration was conducted to explain the surface acid-base properties of aqueous B. cereus biomass. The computer program FITEQL 4.0 was used to perform the model calculations. The optimization results indicated that three sitesthree pKas model, which assumed the cell surface to have three distinct types of surface organic functional groups based on the IR analysis results, simulated the experimental results very well. Moreover, batch adsorption experiments were performed to investigate biosorption behavior of Cu（Ⅱ） and Pb（Ⅱ） ions onto the biomass. Obviously, the adsorption equilibrium data for the two ions were reasonably described by typical Langmuir isotherm.

关键词： Bacillus cereus biosorption Fourier transform infrared (FTIR) acid-base characteristic heavy metals

Energy Consumption Prediction of a CNC Machining Process With Incomplete Data

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IEEE/CAA Journal of Automatica Sinica 2021年第5期8卷 987-1000页

作者： jian pan Congbo Li Ying Tang Wei Li Xiaoou Li the State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China the Department of Electrical and Computer Engineering Rowan UniversityGlassboroNJ 08028 USA the Computer Science Department The Research and Advanced Studies Centre of the National Polytechnic InstituteMexico City 07360Mexico

Energy consumption prediction of a CNC machining process is important for energy efficiency optimization *** improve the generalization abilities,more and more parameters are acquired for energy prediction *** the data collected from workshops may be incomplete because of misoperation,unstable network connections,and frequent transfers,*** work proposes a framework for energy modeling based on incomplete data to address this ***,some necessary preliminary operations are used for incomplete data ***,missing values are estimated to generate a new complete data set based on generative adversarial imputation nets(GAIN).Next,the gene expression programming(GEP)algorithm is utilized to train the energy model based on the generated data ***,we test the predictive accuracy of the obtained *** experiments are designed to investigate the performance of the proposed framework with different rates of missing *** results demonstrate that even when the missing data rate increases to 30%,the proposed framework can still make efficient predictions,with the corresponding RMSE and MAE 0.903 k J and 0.739 k J,respectively.

关键词： Energy consumption prediction incomplete data generative adversarial imputation nets(GAIN) gene expression programming(GEP)

Experimental investigation of combustion mechanisms of kerosene-fueled scramjet engines with double-cavity flameholders

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Acta Mechanica Sinica 2011年第6期27卷 891-897页

作者： Yu pan jian-Guo Tan jian-Han Liang Wei-Dong Liu Zhen-Guo Wang Department of Aerospace and Material National University of Defense and Technology 410073 Changsha China

A scramjet combustor with double cavitybased flameholders was experimentally studied in a directconnected test bed with the inflow conditions of M = 2.64,Pt = 1.84 MPa,Tt = 1 300 *** ignition and selfsustained combustion with room temperature kerosene was achieved using pilot hydrogen,and kerosene was vertically injected into the combustor through 4×φ 0.5 mm holes mounted on the *** different equivalence ratios and different injection schemes with both tandem cavities and parallel cavities,flow fields were obtained and compared using a high speed camera and a Schlieren *** revealed that the combustor inside the flow field was greatly influenced by the cavity installation scheme,cavities in tandem easily to form a single side flame distribution,and cavities in parallel are more likely to form a joint flame,forming a choked combustion *** supersonic combustion flame was a kind of diffusion flame and there were two kinds of combustion *** the unchoked combustion mode,both subsonic and supersonic combustion regions *** in the choked mode,the combustion region was fully subsonic with strong shock propagating *** also showed that there was a balance point between the boundary separation and shock enhanced combustion,depending on the intensity of heat release.

关键词： Scramjet. Supersonic combustion. Flame structure Cavity flameholder

General Approach to Antinormally Ordering Boson Exponential Quadratic Operators and Its Applications

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Chinese Physics Letters 1996年第6期13卷 401-404页

作者： WANG Xiang-bin ZHANG Yong-de pan jian-wei Department of Information Management and Decision Science University of Science and Technology of ChinaHefei 230026 Department of Physics Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong(mailing address) Department of Modern Physics University of Science and Technology of ChinaHefei 230026

A general approach to antinormally ordering the boson exponential quadratic operators(EQOs)is *** the approach,some important EQOs,including squeezed operator of one mode and two mode,linear quantum transformation ope... 详细信息

关键词： operator operators exponential

Influence of Mechanical Activation on Acid Leaching Dephosphorization of High-phosphorus Iron Ore Concentrates

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Journal of Iron and Steel Research International 2016年第7期23卷 661-668页

作者： De-qing ZHU Hao WANG jian pan Cong-cong YANG School of Minerals Processing and Bioengineering Central South University

High pressure roll grinding（HPRG）and ball milling were compared to investigate the influence of mechanical activation on the acid leaching dephosphorization of a high-phosphorus iron ore concentrate,which was manufactured through magnetizing roasting-magnetic separation of high-phosphorus oolitic iron *** results indicated that when high-phosphorus iron ore concentrates containing 54.92 mass% iron and 0.76 mass% phosphorus were directly processed through acid leaching,iron ore concentrates containing 55.74mass%iron and 0.33mass%phosphorus with an iron recovery of 84.64%and dephosphorization of 63.79% were *** high-phosphorus iron ore concentrates activated by ball milling were processed by acid leaching,iron ore concentrates containing56.03mass%iron and 0.21mass% phosphorus with an iron recovery of 85.65% and dephosphorization of 77.49%were ***,when high-phosphorus iron ore concentrates activated by HPRG were processed by acid leaching,iron ore concentrates containing 58.02mass%iron and 0.10mass% phosphorus were obtained,with the iron recovery reaching 88.42% and the dephosphorization rate reaching 88.99%.Mechanistic studies demonstrated that ball milling can reduce the particle size,demonstrating aprominent reunion *** contrast,HPRG pretreatment contributes to the formation of more cracks within the particles and selective dissociation of iron and P bearing minerals,which can provide the favorable kinetic conditions to accelerate the solid-liquid reaction *** such,the crystal structure is destroyed and the surface energy of mineral particles is strengthened by mechanical activation,further strengthening the dephosphorization.

关键词： high-phosphorus iron ore concentrate high pressure roll grinding ball milling selective dissociation sulfuric acid leaching dephosphorization iron recovery