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Morphology Evolution of Poly(vinylidene fluoride) Membranes during Supercritical CO_2 Assisted Phase Inversion

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Chinese Journal of Polymer Science 2014年第12期32卷 1628-1638页

作者： Yan-hui Xiang 刘富薛立新 Jian-hui Shen hai-bo lin Ningbo Institute of Materials technology & Engineering Chinese Academy of Sciences

A supercritical carbon dioxide（Sc CO2） assisted phase inversion was developed to produce microporous poly（vinylidene fluoride）（PVDF） membranes whose morphology characteristics arise from both liquid-liquid demixing and solid-liquid demixing（crystallization）. This result was confirmed by Fourier transform infrared spectroscopy（FTIR）, from which both α and β crystals were found. As revealed by contact angle experiment, the PVDF membranes prepared via Sc CO2 assisted phase inversion were more hydrophobic compared with the control membrane produced via conventional immersionprecipitation technique. In particular, the sample with 15 wt% PVDF prepared at 45 °C and 13 MPa exhibited a contact angle of 142°, which was mainly caused by the multilevel micro- and nano- structure. The effects of polyethylene glycol（PEG）, polyvinyl pyrrolidone（PVP） and lithium chloride（Li Cl） on the structures and crystal form were investigated. PVP promoted the formation of β phase crystal form, while PEG boosts the evolution of α phase. Li Cl restrained the crystallization degree of PVDF membrane under Sc CO2.

关键词： Poly(vinylidene fluoride) Supercritical carbon dioxide Morphology Hydrophobic Micro-structure.

Prussian Blue/Cellulose Acetate Thin Film Composite Nanofiltration Membrane for Molecular Sieving and Catalytic Fouling Resistance

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Chinese Journal of Polymer Science 2023年第4期41卷 593-604,I0009页

作者： hai-bo lin Jian-Guo Zhao Na Lu Qiu Han Jian-Qiang Wang Jian-Min Guan Xiao Wang Fu Liu Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China Qinghai University Qinghai810016China University of Chinese Academy of Sciences Beijing100049China

Nanofiltration(NF)membranes as high selective separators are appealing for molecular sieving,which still remains a great challenge for the mixed dyes with same *** this study,cellulose acetate(CA)membranes were firstly aminated by ethylene imine polymer(PEI),and then the thin film of metal organic frameworks(MOFs)were constructed onto aminated CA membrane through forward-diffusion,slow crystallization and in situ growth of Fe Co-Prussian blue(FeCo-PB)crystallization *** designed PB@CA composite NF membrane shows an ideal rejection for Congo red(CR)/methyl orange(MO)mixture solution,with 99.7%±0.2%for CR and 33.5%±2%for *** addition,the composite NF membrane demonstrated good efficiency for photocatalytic degradation of organic fouling(permeability recovery ratio was up to 92%)due to the active FeCo-PB ***,this work provides a practical strategy to prepare MOFs mediated thin film composite nanofiltration membrane for precise molecular sieving and catalytic antifouling performances.

关键词： Nanofiltration membrane Molecular sieving Catalytic fouling resistance Prussian blue

Providing Source Code Level Portability Between CPU and GPU with MapCG

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Journal of Computer Science & Technology 2012年第1期27卷 42-56页

作者： Chun-Tao Hong De-Hao Chen Yu-Bei Chen Wen-Guang Chen Wei-Min Zheng hai-bo lin Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China Department of Electronic Engineering Tsinghua UniversityBeijing 100084China IBM China Research Lab Beijing 100094China

Graphics processing units （GPU） have taken an important role in the general purpose computing market in recent years. At present, the common approach to programming GPU units is to write CPU specific code with low level GPU APIs such as CUDA. Although this approach can achieve good performance, it creates serious portability issues as programmers are required to write a specific version of the code for each potential target architecture. This results in high development and maintenance costs. We believe it is desirable to have a programming model which provides source code portability between CPUs and GPUs, as well as different GPUs. This would allow programmers to write one version of the code, which can be compiled and executed on either CPUs or GPUs efficiently without modification. In this paper, we propose MapCG, a MapReduce framework to provide source code level portability between CPUs and GPUs. In contrast to other approaches such as OpenCL, our framework, based on MapReduce, provides a high level programming model and makes programming much easier. We describe the design of MapCG, including the MapReduce-style high-level programming framework and the runtime system on the CPU and GPU. A prototype of the MapCG runtime, supporting multi-core CPUs and NVIDIA GPUs, was implemented. Our experimental results show that this implementation can execute the same source code efficiently on multi-core CPU platforms and GPUs, achieving an average speedup of 1.6-2.5x over previous implementations of MapReduce on eight commonly used applications.

关键词： portability parallel GPU programming

Study on the mechanism of action of Ephedra Herba Decoction against influenza A virus based on network pharmacology

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TMR Modern Herbal Medicine 2022年第2期5卷 29-37页

作者： Yu-Qiang Lu Hui Ding Zhao-lin Shi hai-bo lin Guo-Cheng Zhang Shaanxi University of Chinese Medicine Xianyang 712046China The Second Affiliated Hospital of Shaanxi University of Chinese Medicine Xianyang 712046China

Objective To predict the main bioactive components and potential mechanisms of Ephedra Herba Decoction(Chinese Pinyin abbreviated as MHT)in treating influenza A virus(IAV)based on network *** Multiple online databases were used to search and screen out the active components from MHT,the related targets of active components of MHT and the genes related to *** the corresponding genes name of target through UniProt *** 3.7.2 was used to construct the drug-component-target network *** diagram was used to screen the intersection genes of the active components corresponding to the target and disease-related genes,and the intersection genes were imported into the STRING Database Online platform to obtain the protein-protein interaction(PPI)***,the PPI network was imported into Cytoscape 3.7.2 to obtain the core ***,Wei Sheng Xing(http://***/)was used to do GO function enrichment analysis and KEGG signaling pathway enrichment analysis for the intersection genes,and the results of GO and KEGG were *** A total of 116 active components and 253 potential targets were screened from ***,Kaempferol,and Luteolin are the main active components,and AKT1,TNF,TP53,IL6,and JUN are the core targets of 253 potential *** are 2906 targets of influenza A,including 121 intersection *** analysis showed that there were 131 entries of molecular function,89 entries of cell component,1645 entries of biological process and 195 entries of signaling ***3K-Akt,MAPK,and JAK-STAT were the main signaling *** MHT plays an important role in the prevention and treatment of influenza A by acting on multiple targets and multiple signaling pathways.

关键词： Ephedra Herba Decoction Influenza A virus Network pharmacology

Mechanism of Magnoliae Flos and Xanthii Fructus herb pair in treatment of allergic rhinitis based on network pharmacology

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Drug Combination Therapy 2022年第3期4卷 28-36页

作者： Yu-Qiang Lu Hui Ding Zhao-lin Shi hai-bo lin Guo-Cheng Zhang Shaanxi University of Chinese Medicine Xianyang 712046China Children's Hospital The Second Affiliated Hospital of Shaanxi University of Chinese MedicineXianyang 712046China

Objective: To explore the molecular mechanism of Magnoliae Flos and Xanthii Fructus herb pair for allergic rhinitis based on network pharmacology. Methods: From the Traditional Chinese Medicine Systems Pharmacology database, Uniprot database, and Gene Cards database, the relevant chemical constituents information, pharmacokinetic information and hub target of allergic rhinitis were obtained. The protein-protein interaction network was constructed by STRING online database, analyzed and showed by the Cytoscape software. The screened target information was analyzed by the Metascape database for Gene Ontology biological function and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. Results: Main components of Magnoliae Flos and Xanthii Fructus herb pair, such as aloe-emodin, stigmasterol, beta-sitosterol and Yangambin, depend on the interaction of Nitric Oxide Synthase 3, Tumor Necrosis Factor, Caspase-3 and other functions involve G protein-coupled (amine) receptor activity, RNA polymerase II basic transcription factor binding, protease binding, heme binding, and integrin binding;can regulate calcium signal pathway, serotonergic synapse, Kyoto Encyclopedia of Genes and Genomes signal pathway, tryptophan inflammatory mediator regulation pathway, estrogen signal pathway alone or in combination, and play a role in the treatment of allergic rhinitis. Conclusion: Magnoliae Flos combined with Xanthii Fructus can regulate biomolecular network in multiple targets and pathways to treat allergic rhinitis.

关键词： network pharmacology allergic rhinitis Magnoliae Flos and Xanthii Fructus herb pair target prediction mechanism of action

非齐型空间上分数型Marcinkiewicz积分算子的加权估计

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数学学报（中文版） 2020年第5期63卷 443-464页

作者：林海波王宸雁中国农业大学理学院北京100083

令(H,d,μ)为满足所谓上倍双倍条件和几何双倍条件的度量测度空间.设Mβ,ρ,q为(H,d,μ)上的分数型Marcinkiewicz积分算子.在本文中,作者证明了若β∈[0,∞),ρ∈(0,∞),q∈(1,∞)且Mβ,ρ,q在L^2(μ)上有界,则Mβ,ρ,q是从加权Lebesgu... 详细信息

令(H,d,μ)为满足所谓上倍双倍条件和几何双倍条件的度量测度空间.设Mβ,ρ,q为(H,d,μ)上的分数型Marcinkiewicz积分算子.在本文中,作者证明了若β∈[0,∞),ρ∈(0,∞),q∈(1,∞)且Mβ,ρ,q在L^2(μ)上有界,则Mβ,ρ,q是从加权Lebesgue空间L^p(w)到加权弱Lebesgue空间Lp,∞(w)上有界和从加权Morrey空间L^p,κ,η(ω)到加权弱Morrey空间WL^p,κ,η(ω)上有界.

关键词：非齐型空间分数型Marcinkiewicz积分算子加权有界性加权Morrey空间

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期68卷 233-240页

作者： Peipei Liu Yantong Li Meng-Xiang Wu Hao Kang Xiao-Li Zhao lin Xu linlin Liu Xiaodong Li Junfeng Fang Zhiwei Fang Ya Cheng hai-bo Yang Huakang Yu Xueliang Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

关键词： double carbohelicene optical resolution organic laser isomerization X-ray diffraction

High-dense nanocrystalline W-based alloy prepared by hot isostatic pressing with uniform microstructure, ultrahigh hardness and good thermal stability

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Tungsten 2025年第1期7卷 120-136页

作者： Zao-Ming Wu lin He lin-Sen Ye Xiao-Feng Yang Jia-Jia Zhang Hong-bo Lei Institute of Materials China Academy of Engineering Physics

High-density uniform microstructure nanocrystalline W-10wt.% Cr-5wt.% Y（W-10Cr-5Y） alloy with an average grain size of 85 nm and a relative density of 99.8% was successfully prepared.W-Cr-Y alloys with different amounts of second-phase particles were prepared by high-energy ball milling and hot isostatic pressing *** effects of composition design,ball milling parameters,and sintering parameters on the microstructure of W-Cr-Y alloys were studied.A feasible technology for controlling the synthesis of high-density nanocrystalline W-based alloys has been *** microstructure analysis of nanocrystalline W-10Cr-5Y alloy shows that there are two types of doping in the second phase:intergranular doping and intragranular *** "uniform distribution YOx-rich particles" effectively suppresses the grain growth of W and leads to the formation of nanocrystalline W-10Cr-5Y alloy.W-10Cr-5Y has an ultra-high hardness,with a Vickers hardness of 1312±12 kgf·***-temperature annealing treatment shows that W-10Cr-5Y has good thermal stability at 1000 and1100℃,as demonstrated by the comparison of Vickers hardness and grain size between annealed and unannealed alloys.

关键词： Hot isostatic pressing Microstructure Nanocrystalline tungsten Thermal stability Vickers hardness

A study on the rule of Chinese medicine use for airway remodeling based on data mining

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Medical Data Mining 2022年第1期5卷 9-15页

作者： Xin-Yu Wang Guo-Cheng Zhang Yu-Qiang Lu Yu-Qi Hao Hui Ding Zhao-lin Shi hai-bo lin Kang-Xiong Zhao Shaanxi University of Chinese Medicine Xianyang 712046China The Second Affiliated Hospital of Shaanxi University of Chinese Medicine Xianyang 712046China

Objective:Use data mining techniques to explore the rule of Chinese medicine used for airway ***:Search the literature on Chinese medicine use for airway remodeling in the past 20 *** the help of WPS Office Excel 11.1,IBM SPSS Statistics 23.0 and SPSS Modeler 18.0 software,prescriptions were analyzed for the frequency of drug use,the four natures,the five flavours and the channel tropism,cluster analysis and association analysis of high-frequency ***:There were 58 Chinese medicine prescriptions for airway remodeling be found,involving 105 Chinese medicines,the most frequent channel tropism were spleen,stomach,lung,large intestine,liver and gallbladder,the most frequent use of the five flavors was sour,sweet and pungent,the highest frequency of the four natures was cold and hot,cluster analysis yielded eight drug aggregation groups,and association rule analysis yielded five groups of high-frequency drug ***:The main TCM treatments for airway remodeling are expelling phlegm,relieving cough,asthma calming,expelling blood stasis and deficiency *** results of this study can provide ideas for compounding and drug selection for subsequent studies.

关键词： data mining airway remodeling medication rules association analysis cluster analysis