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Bilinear Bäcklund Transformation for a Variable-Coefficient Kadomtsev–Petviashvili Equation

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Chinese Physics Letters 2011年第6期28卷 24-27页

作者： WU jian-ping Institute of Electronic Technology Information Engineering UniversityZhengzhou 450004

Resorting to the Hirota bilinear form,a bilinear Bäcklund transformation(BT)is obtained for a variable-coefficient Kadomtsev–Petviashvili *** applications,based on the resulting bilinear BT,single-soliton solutions and two-soliton solutions together with their soliton characteristics are presented for the ***,starting from the bilinear BT,a Lax pair and a new variable-coefficient(2+1)-dimensional nonlinear evolution equation is derived.

关键词： equation bilinear soliton

Insights into the adsorption/desorption of CO_(2) and CO on single-atom Fe-nitrogen-graphene catalyst under electrochemical environment

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Journal of Energy Chemistry 2021年第2期30卷 20-25,I0002页

作者： Jiejie Li jian Liu bo Yang School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China CAS Key Laboratory of Low-Carbon Conversion Science&Engineering Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China University of Chinese Academy of Sciences Bejing 100049China

Single-atom metal-nitrogen-graphene(M-N-Gra) catalysts are promising materials for electrocatalytic CO_(2) reduction reaction(CO_(2) RR). However, theoretical explorations on such systems were greatly hindered because of the complexity in modeling solid/liquid interface and electrochemical environment. In the current work, we investigated two crucial processes in CO_(2) RR, i.e. adsorption and desorption of CO_(2) and CO at Fe-N_(4) center, with an explicit aqueous model. We used the ab initio molecular dynamics simulations associated with free energy sampling methods and electrode potential analysis to estimate the energetics under electrochemical environment, and found significant difference in aqueous solution compared with the same process in vacuum. The effect of applied electrode potential on the adsorption structures,charge transfer and free energies of both CO_(2) and CO on Fe-N-Gra was thoroughly discussed. These findings bring insights in fundamental understandings of the CO_(2) RR process under realistic conditions, and facilitate future design of efficient M-N-Gra-based CO_2 RR catalysts.

关键词： Single atom catalyst Electroreduction of CO_(2) Adsorption CO Ab initio molecular dynamics

Is editing the roadblock to the internationalization of Chinese academic journals?

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第6期12卷 503-506页

作者： jian-ping LU School of International Studies Zhejiang University Hangzhou 310058 China

"China's internationalization" is in part realized through the dissemination of Chinese publications,such as academic ***,editorial proficiency in the English language is of vital importance to the quality of the *** article analyzes the results of the two projects sponsored by the General Administration of Press and Publication of the People's Republic of China in 2007 and 2010 respectively,namely the "Analytical Evaluation of Language and Editing Quality of Chinese Academic Journals in English Language Issued in 2006",and the "Evaluation of Publication Quality of the China-Grown English Periodicals Issued in 2009,Sanctioned from 2005 to 2009",and proposes solutions to the problems presented therein.

关键词： China internationalization Quality of academic journals Editorial proficiency

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稀土在纺织行业的应用

染整技术 2006年第6期28卷 13-16页

作者：刘志华张建波朱平王炳董朝红青岛大学化工学院山东青岛266071

综合介绍了稀土元素在纺织工业领域如前处理、染色、后整理方面的应用情况,并分析作用机理。

关键词：稀土前处理染色后整理

A New Wronskian Condition for a(3+1)-Dimensional Nonlinear Evolution Equation

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Chinese Physics Letters 2011年第5期28卷 57-59页

作者： WU jian-ping Institute of Electronic Technology Information Engineering UniversityZhengzhou 450004

A new Wronskian condition is set for a(3+1)-dimensional nonlinear evolution *** the aid of the Hirota bilinear transformation,a novel Wronskian determinant solution is presented for the equation.

关键词： equation bilinear Nonlinear

Ultrasound-responsive Homopolymer Nanoparticles

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Chinese Journal of Polymer Science 2020年第4期38卷 349-356,I0006页

作者： bo Yang jian-Zhong Du Department of Orthopedics Shanghai Tenth People's HospitalTongji University School of MedicineShanghai 200072China Department of Polymeric Materials School of Materials Science and EngineeringKey Laboratory of Advanced Civil Engineering Materials of Ministry of EducationTongji UniversityShanghai201804China

Nonin vasive ultraso und is a more effective strategy for on-demand drug delivery of polymeric nano particles than many other ***,the preparation of ultrasound-responsive homopolymer nanoparticles is still very *** this study,we disclose the regulating factors of ultrasound responsiveness of homopolymer nanoparticles and the disaggregation behavior of homopolymer nanoparticle *** nanoparticles such as vesicles and large compound micelles(LCMs)are self-assembled from poly(methoxyethyl methacrylate)(PMEMA)and poly(amic acid)(PAA),*** ultrasound responsiveness of PAA vesicles at metastable state could be regulated by tuning the self-assembly temperature(7^),and was optimized when Ts is around the glass transition temperature(7g)of ***,the PMEMA LCMs did not respond to ultrasound as they are at stable *** the other hand,poly(2-(2-ethoxyethoxy)ethyl acrylate)(PEEA)could self-assemble into vesicle aggregates or complex micelle aggregates,which were dissociated upon ***,the above findings provide us with a fresh in sight for designing ultrasound-responsive polymeric nanoparticles.

关键词： Ultrasound responsiveness Homopolymers Vesicles Micelles Self-assembly

Mn evaporation and denitrification behaviors of molten Mn steel in the vacuum refining with slag process

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International Journal of Minerals,Metallurgy and Materials 2021年第8期28卷 1288-1297页

作者： jian-hua Chu Yan-ping Bao State Key Lab of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

Considering the precise composition control on the vacuum refining of high-Mn steel, the behaviors of both Mn evaporation and nitrogen removal from molten Mn steel were investigated via vacuum slag refining in a vacuum induction furnace. It was found that the reaction interfaces of denitrification and Mn evaporation tend to migrate from the surface of slag layer to the surface of molten steel with the gradual exposure of molten steel during the vacuum slag refining process. Significantly, compared with the experimental group without slag addition, the addition of slag into steel can result in a lower Mn evaporation rate constant of 0.0192 cm·min~(-1) at 370 Pa, while the denitrification rate is almost not affected. Besides, the slag has a stronger inhibitory effect on Mn evaporation than the reduced vacuum pressure. Moreover, the inhibitory effect of the slag layer on Mn evaporation can be weakened with the increase of the initial Mn content in molten steel. The slag layer can work as an inhibitory layer to reduce the Mn evaporation from molten steel, the evaporation reaction of Mn mainly proceeds on the surface of the molten steel. This may be attributed to the Mn mass transfer coefficient for one of reaction at steel/slag interface, mass transfer in molten slag, and evaporation reaction at slag/gas interface is lower than that of evaporation reaction at steel/gas interface. The introduction of slag is proposed for both denitrification and manganese control during the vacuum refining process of Mn steels.

关键词： manganese evaporation denitrification vacuum slag evaporation rate

Transcriptomic analysis identifies the neuropeptide cortistatin (CORT) as an inhibitor of temozolomide (TMZ) resistance by suppressing the NF-kB-MGMT signaling axis in human glioma

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Genes & Diseases 2024年第3期11卷 385-399页

作者： Zongze He bo Peng Qi Wang Jie Tian ping Liu Jie Feng Yiwei Liao Longyi Chen ping Jia jian Tang Department of Neurosurgery Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan 610072China Department of Rehabilitation Medicine Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan 610072China Department of Neurosurgery Xiangya HospitalCentral South UniversityChangshaHunan 410008China

Glioma is a common tumor originating in the brain that has a high mortality ***(TMZ)is the first-line treatment for high-grade ***,a large pro-portion of gliomas are resistant to TMZ,posing a great challenge to their *** the study,the specific functions and mechanism(s)by which cortistatin(CORT)regulates TMZ resis-tance and glioma progression were *** decreased expression of CoRT was detected in glioma tissues,and highly expressed CORT was associated with a better survival rate in pa-tients with *** overexpression notably decreased the capacity of glioma cells to pro-liferate and migrate in vitro and to form tumors in *** overexpression also markedly suppressed the viability and enhanced the apoptosis of TMZ-resistant U251 cells by regulating MGMT,p21,and Puma ***,CORT overexpression reduced the resistance of gliomas to TMZ in *** expression Was negatively correlated with MGMT expression in both glioma tissues and cells,and it was found that CORT inhibited NF-kB pathway activation in glioma cells,thereby inhibiting MGMT *** conclusion,CORT regulates glioma cell growth,migration,apoptosis,and TMZ resistance by weakening the activity of NF-kB/p65 and thereby regulating MGMT *** CORT/NF-kB/MGMT axis might be regarded as a molecular mechanism contributing to the resistance of glioma to *** data also suggest that CORT regulates the viability and metastatic potential of glioma cells,independent of its effects on TMZ resistance,providing evidence of novel therapeutic targets for glioma that should be evaluated infurther studies.

关键词： Cortistatin Glioma MGMT NF-kB pathway Temozolomide

Embedding ensemble tracking in a stochastic framework for robust object tracking

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第10期10卷 1476-1482页

作者： Yu GU ping LI bo HAN Institute of Industrial Process Control Zhejiang University Hangzhou 310027 China

We propose an algorithm of embedding ensemble tracking in a stochastic framework to achieve robust tracking performance under partial occlusion,illumination changes,and abrupt *** operates on likelihood images generated by the ensemble method,and combines mean shift and particle filtering in a principled way,where a better proposal distribution is de-signed by first propagating particles via a motion model,and then running mean shift to move towards their local peaks in the likelihood *** observation model in the particle filter incorporates global and local information within a region,and an adaptive motion model is adopted to depict the evolution of the object *** algorithm needs fewer particles to manage the tracking task compared with the general particle filter,and recaptures the object quickly after occlusion *** on two image sequences demonstrate the effectiveness and robustness of the proposed algorithm.

关键词： Ensemble tracking Particle filter Mean shift Likelihood mean