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Affinity Adsorption of Bilirubin on Cibacron Blue F3GA-modified Microporous Polytetrafluoroethylene Capillary

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Chemical Research in Chinese Universities 2010年第2期26卷 323-330页

作者： jin Gu YAO jian-xia Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China

Bilirubin removal from human plasma was obtained via an affinity microporous polytetrafluoroethylene（MPTFE） capillary. The new adsorbent comprised grafted glycidyl methacrylate（GMA） via radiation-induced polymerization as hydrophilic coating and reactive sites; ethylenediamine（EDA） as a spacer arm; Cibacron Blue F3GA（CB F3GA） as an affinity ligand; MPTFE capillary as the supporting matrix. The average density of CB F3GA attachment to MPTFE capillaries was found to be 136.5 μmol/g. The capacity of bilirubin adsorbed on affinity MPTFE capillaries is 76.1 mg bilirubin/g polymer（at 25℃）. This new adsorbent has advantages over both membrane and traditional micro-column, and this system is stable and easy to operate. The results of blood tests suggest the CB F3GA affinity capillary has good blood compatibility.

关键词： Bilirubin removal Radiation grafting Cibacron Blue F3GA Polytetrafluoroethylene Microporous capillary

Concise Cascade Methods for Transgenic Rice Seed Discrimination using Spectral Phenotyping

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Plant Phenomics 2023年第3期5卷 564-580页

作者： jinnuo Zhang Xuping Feng jian jin Hui Fang Department of Agricultural and Biological Engineering Purdue UniversityWest LafayetteIN 47907USA College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhouChina Huzhou Institute of Zhejiang University HuzhouChina

Currently,the presence of genetically modified(GM)organisms in agro-food markets is strictly regulated by enacted legislation *** is essential to ensure the traceability of these transgenic products for food safety,consumer choice,environmental monitoring,market integrity,and scientific ***,detecting the existence of GM organisms involves a combination of complex,time-consuming,and labor-intensive techniques requiring high-level professional *** this paper,a concise and rapid pipeline method to identify transgenic rice seeds was proposed on the basis of spectral imaging technologies and the deep learning *** composition of metabolome across 3 rice seed lines containing the cry1Ab/cry1Ac gene was compared and studied,substantiating the intrinsic variability induced by these GM *** showed that near-infrared and terahertz spectra from different genotypes could reveal the regularity of GM metabolic *** established cascade deep learning model divided GM discrimination into 2 phases including variety classification and GM status *** could be found that terahertz absorption spectra contained more valuable features and achieved the highest accuracy of 97.04%for variety classification and 99.71%for GM status ***,a modified guided backpropagation algorithm was proposed to select the task-specific characteristic wavelengths for further reducing the redundancy of the original *** experimental validation of the cascade discriminant method in conjunction with spectroscopy confirmed its viability,simplicity,and effectiveness as a valuable tool for the detection of GM rice *** approach also demonstrated its great potential in distilling crucial features for expedited transgenic risk assessment.

关键词： fir simplicity consuming

Numerical simulation of heat transfer of latent functionally thermal fluid in tubes with coaxially inserted cylindrical bars in laminar

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Science China(Technological Sciences) 2008年第8期51卷 1232-1241页

作者： jin jian LIU PeiQing LIN GuiPing School of Aeronautical Science and Engineering Beihang UniversityBeijing 100083China

The heat transfer of latent functionally thermal fluid in three kinds of tubes with coaxially inserted cylindrical bars is numerically researched using equivalent spe- cific heat model, and the flow fields are analyzed with field synergy field. It is found that in the tubes with coaxially inserted cylindrical bars, the heat transfer effects of functionally thermal fluid become more and more pronounced with the Ste de- creasing. This is similar to be case of functionally thermal fluid flowing in smooth straight tubes. Compared with the results receiving from smooth straight tubes, the heat transfer of functional thermal fluid in tubes with coaxially inserted cylindrical bars has been significantly enhanced. And this effect becomes more apparent as the diameter of coaxially inserted cylindrical bars increases meanwhile, however, energy consuming of the tubes shows the same trend.

关键词： latent functionally thermal fluid field synergy equivalent heat specific microencapsulated phase change material

An Improved Feasible QP-free Algorithm for Inequality Constrained Optimization

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Acta Mathematica Sinica,English Series 2012年第12期28卷 2475-2488页

作者： Zhi Bin ZHU jin Bao jian College of Mathematics and Computing Science Guilin University of Electronic Technology College of Mathematics and Informational Science Guangxi University College of Mathematics and Informational Science Yulin Normal University

In this paper, an improved feasible QP-free method is proposed to solve nonlinear inequality constrained optimization problems. Here, a new modified method is presented to obtain the revised feasible descent direction. In view of the computational cost, the most attractive feature of the new algorithm is that only one system of linear equations is required to obtain the revised feasible descent direction. Thereby, per single iteration, it is only necessary to solve three systems of linear equations with the same coefficient matrix. In particular, without the positive definiteness assumption on the Hessian estimate, the proposed algorithm is still global convergence. Under some suitable conditions, the superlinear convergence rate is obtained.

关键词： Inequality constrained optimization feasible QP-free method system of linear equations,global convergence superlinear convergence rate

2D and 3D stability analysis of slurry trench in frictional/cohesive soil

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第2期14卷 94-100页

作者： Chang-yu HAN jin-jian CHEN jian-hua WANG Xiao-he XIA Department of Civil Engineering Shanghai Jiaotong University

A 2D and 3D kinematically admissible rotational failure mechanism is presented for homogeneous slurry trenches in frictional/cohesive *** approaches are derived to obtain the upper bounds on slurry trench stability in the strict framework of limit *** is shown that the factor of safety from a 3D analysis will be greater than that from a 2D *** with the limit equilibrium method,the limit analysis method yields an unconservative estimate on the safety factors.A set of examples are presented in a wide range of parameters for 2D and 3D homogeneous slurry *** factor of safety increases with increasing slurry and soil bulk density ratio,cohesion,friction angle,and with decreasing slurry level depth and trench depth ratio,trench width and depth *** is convenient to assess the safety for the homogeneous slurry trenches in practical applications.

关键词： Limit analysis Stability Slurry trench Diaphragm wall

Identification of an Underactuated Unmanned Surface Vehicle

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西北工业大学学报 2012年第5期30卷 699-705页

作者： Zhao jiang Yan Weisheng jin Xuelian Gao jian College of Marine Engineering Northwestern Polytechnical University Xi'an 710072 China

Hydrodynamic coefficients strongly affect the dynamic performance of underactuated unmanned surface vehicle (USV) . Towing tank test is the traditional approach to identify these coefficients,however, the obtained values are not completely reliable since experimental difficulties and errors are involved. In this paper,an extended Kalman filter (EKF) method and a least squares (LS) method are proposed,only using onboard sensor data for identification of a small underactuated USV. The vehicle prototype as well as the system integration is delineated. Performance of the identification is evaluated by comparing the estimated coefficients,and the feasibility and accuracy of the proposed approach is demonstrated by simulation.

关键词：工业大学教学管理教育事业教育发展

Nearly lattice-defect-free MOF membranes

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Science China Chemistry 2024年第3期67卷 741-743页

作者： Yuzhang Zhu Yang Liu jian jin i-Lab Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

Membrane technology has widely accepted as the most energy efficient technology for the separation of ions or molecules. As the core of the membrane technology, the chemical and structure nature of membrane materials determines the application and energy-efficiency of the technology. An advanced membrane that has a remarkable ability to selectively differentiate ions and molecules can significantly enhance the separation technology and revolutionize industrial separation processes.

关键词： processes. separation defect

A possible explanation for the electron/positron excess of ATIC/PAMELA

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Research in Astronomy and Astrophysics 2010年第1期10卷 39-46页

作者： Rui-Zhi Yang jin Chang jian Wu Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 China

Results from PAMELA and ATIC indicate that the Kaluza-Klein type dark matter particles could be the annihilation source of the observed excess of electrons and positrons. Assuming the existence of a nearby black hole with 10000-100000 solar masses and a point source boost algorithm, we apply the standard propagation model and find that the results fit the data well.

关键词： dark matter - black hole physics - cosmic rays

A New QP-free Algorithm Without a Penalty Function or a Filter for Nonlinear Semidefinite Programming

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Acta Mathematicae Applicatae Sinica 2020年第3期36卷 714-736页

作者： jian-ling LI Zhen-ping YANG Jia-qi WU jin-bao jian College of Mathematics and Information Science Guangxi UniversityNanning 530004China School of Mathematics Jiaying UniversityMeizhou 514015China College of Science Guangxi University for NationalitiesNanning 530006China

In this paper,we present a QP-free algorithm without a penalty function or a filter for nonlinear semidefinite *** each iteration,two systems of linear equations with the same coefficient matrix are solved to determine search direction;the nonmonotone line search ensures that the objective function or constraint violation function is sufficiently *** is no feasibility restoration phase in our algorithm,which is necessary for traditional filter *** proposed algorithm is globally convergent under some mild *** numerical results indicate that the proposed algorithm is comparable.

关键词： nonlinear semidefinite programming QP-free penalty-free nonmonotone line search global convergence