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1Modelling and simulation of two-bed PSA process for separating H2 from methane steam reforming显示文摘Methane steam reforming is the main hydrogen production method in the industry. The product of methane steam reforming contains H2, CH4, CO and CO2 and is then purified by pressure swing adsorption(PSA) technology. In this study, a layered two-bed PSA process was designed theoretically to purify H2 from methane steam reforming off gas. The effects of adsorption pressure, adsorption time and purgeto-feed ratio(P/F ratio) on process performance were investigated to design a PSA process with more than99.95% purity and 80% recovery. Since the feed composition of the PSA process changes with the upstream process, the effect of the feed composition on the process performance was discussed as well.The result showed that the increase of CH4 concentration, which was the weakest adsorbate, would have a negative impact on product purity.Huiru Li Zuwei Liao Jingyuan Sun Binbo Jiang Jingdai Wang Yongrong Yang 2019Chinese Journal of Chemical Engineering2019,27,8:9
2Adsorption behaviors of Cd^(2+) on Fe_2O_3/MnO_2 and the effects of coexisting ions under alkaline conditions显示文摘This study describes the adsorption features of cadmium on Fe2O3 and MnO2 in alkaline saline conditions. The adsorption reached equilibrium in 6 hours under alkaline conditions. The absorption of cadmium on Fe2O3 and MnO2 was consistent with Freundlich absorption isotherms, and the corresponding adsorption capacities were 16.3 and 16.7 mg·g-1, respectively. Moreover, the adsorption quantity of cadmium on Fe2O3 and MnO2 rose with increas-ing pH from acidic to neutral, and reached the maximum at pH= 9. The coexisting chlorides reduced the adsorption capacity of Fe2O3 and MnO2. The influence intensities of different cations follow the order of CaCl2>>KCl>NaCl. However, the influence of sodium salts on the capacities of Fe2O3 and MnO2 to adsorb cadmium appeared more complicated: the relatively low concentrations of sodium salts could reduce the adsorption capacity; with increasing concentrations of sodium salts, e.g. NaCl and NaNO3. the adsorption capacity decreased continually. Moreover, due to the competition adsorption and precipitation effects, the adsorption capabilities of Na2CO3, NaH2PO4 and Na2HSO4 could also be reduced and cadmium concentrations in the solution were reduced as well.WANG Zuwei ZENG Xiangfeng YU Xiaoman ZHANG Hui LI Zhaojiang JIN Di 2010Chinese Journal Of Geochemistry2010,29,2:6
3Recent advances in mammalian reproductive biology显示文摘Reproductive biology is a uniquely important topic since it is about germ cells, which are central for transmitting genetic information from generation to generation. In this review, we discuss recent advances in mammalian germ cell development,including preimplantation development, fetal germ cell development and postnatal development of oocytes and sperm. We also discuss the etiologies of female and male infertility and describe the emerging technologies for studying reproductive biology such as gene editing and single-cell technologies.Lu Wen Qiang Liu Jingjing Xu Xixi Liu Chaoyi Shi Zuwei Yang Yili Zhang Hong Xu Jiang Liu Hui Yang Hefeng Huang Jie Qiao Fuchou Tang Zi-Jiang Chen 2020Science China(Life Sciences)2020,63,1:6
4An aptamer-based shear horizontal surface acoustic wave biosensor with a CVD-grown single- layered graphene film for high-sensitivity detection of a label-free endotoxin显示文摘The thickness of the sensitive layer has an important influence on the sensitivity of a shear horizontal surface acoustic wave(SH-SAW)biosensor with a delay-line structure and lower layer numbers of graphene produce better sensitivity for biological detection.Therefore,a label-free and highly sensitive SH-SAW biosensor with chemical vapor deposition(CVD-)-grown single-layered graphene(SLG)for endotoxin detection was developed in this study.With this methodology,SH-SAW biosensors were fabricated on a 36°Y-90°X quartz substrate with a base frequency of 246.2MHz,and an effective detection cell was fabricated using acrylic material.To increase the surface hydrophilicity,chitosan was applied to the surface of the SLG film.Additionally,the aptamer was immobilized on the surface of the SLG film by cross-linking with glutaraldehyde.Finally,the sensitivity was verified by endotoxin detection with a linear detection ranging from 0 to 100 ng/mL,and the detection limit(LOD)was as low as 3.53 ng/mL.In addition,the stability of this type of SH-SAW biosensor from the air phase to the liquid phase proved to be excellent and the specificity was tested and verified by detecting the endotoxin obtained from Escherichia coli(E.coli),the endotoxin obtained from Pseudomonas aeruginosa(P.aeruginosa),and aflatoxin.Therefore,this type of SH-SAW biosensor with a CVD-grown SLG film may offer a promising approach to endotoxin detection,and it may have great potential in clinical applications.Junwang Ji Yiquan Pang Dongxiao Li Zheng Huang Zuwei Zhang Ning Xue Yi Xu Xiaojing Mu 2020Microsystems & Nanoengineering2020,6,1:3
5Study on the Yield Reduction Mechanism of Soybean Planted under Continuous and every Second Year Cropping Conditions显示文摘1IntroductionSoybeanisanimportantcommercialcropinHeilongjiang,whereannualareaofsoybeancultivatedisabout30%,totaloutputis24%,...ZuWei LiuZhongtang1998Journal of Northeast Agricultural University(English Edition)1998,5,2:3
6Modeling and Optimization of Ethane Steam Cracking Process in An Industrial Tubular Reactor with Improved Reaction Scheme显示文摘Ethane steam cracking process in an industrial reactor was investigated.An one-demsional(1D)steady-state model was developed firstly by using an improved molecular reaction scheme and was then simulated in Aspen Plus.A comparison of model results with industrial data and previously reported results showed that the model can predict the process kinetics more accurately.In addition,the validated model was used to study the effects of different process variables,including coil outlet temperature(COT),steam-to-ethane ratio and residence time on ethane conversion,ethylene selectivity,products yields,and coking rate.Finally,steady-state optimization was conducted to the operation of industrial reactor.The COT and steam-to-ethane ratio were taken as decision variables to maximize the annual operational profit.Mohsin Ali Liao Zuwei Yao Yang Sun Jingyuan Jiang Binbo Wang Jingdai Yang Yongrong 2020China Petroleum Processing & Petrochemical Technology2020,22,4:2
7Design and optimization of an integrated MEMS gas chamber with high transmissivity显示文摘Non-Dispersive InfraRed(NDIR)gas sensor is widely used for gas detection in collieries and the gas chemical industry,etc.The performance of the NDIR gas sensor depends on the volume,optical length and transmittance of the gas chamber.However,the existing gas sensor products have problems of large volume,high cost and incapable of integration,which need to develop towards the miniaturized sensor.This paper first presents the theoretical background of the NDIR gas sensor and the novel structure of a fully integrated infrared gas sensor and its micro-machined gas chamber structure.Then,the light structure and the gas flow of the gas chamber are optimized on Tracepro software and Ansys workbench,respectively,and the technological process for preparing the Micro-Electro-Mechanical System(MEMS)gas chamber is designed.Finally,we produce a gas chamber with a small volume and good transmissivity,which would be the most important part of producing the miniaturized NDIR gas sensor.Yang Jing Cheng Yuhua Yuan Yupeng Li Xiaofei Zhang Zuwei Xu Ming Wang Dengpan Mu Jiangdong Mei Yong Zhang Yuzhe 2021Digital Communications and Networks2021,7,1:2
8Electrospun cellulose nanofiber as affinity membrane显示文摘Zuwei Ma M.Kotaki S.Ramakrishna 0,,1:1
9Thermal Characteristics of Hyperaccumulator and Fate of Heavy Metals during Thermal Treatment of Sedum plumbizincicola显示文摘Daoxu Zhong Zhaoping Zhong Longhua Wu Hui Xue Zuwei Song Yongming Luo 2015International Journal of Phytoremediation2015,,8:1
10One Dimensional Nanomaterials:Preparation,Structures,and Assembly 显示文摘Liu Yingjun Ma Zuwei Ramakrishna S 2006Current Nanoscience2006,2,1:1
11Surface modified nonwovenpolysulphone(PSU)fiber mesh by electrospinning:A novel affini-ty membrane显示文摘Ma Zuwei Kotaki M Ramakrishna S 2006J Membr Sci2006,272,12:1
12Structure design and performance study on braid-reinforced cellulose acetate hollow fiber membranes显示文摘Fan Zuwei Xiao Changfa Liu Hailiang 2015Journal of Membrane Science2015,486,:1
13Numerical simulation of liquid-solid two-phase flow in a tubular loop polymerization reactor显示文摘Shi Depan Luo Zhenghong Zheng Zuwei 2010Powder Technology2010,198,1:1
14Surface modification of poly-L-lactide by photografting of hydrophilic polymers towards improving its hydrophilicity显示文摘Ma Zuwei Gao Changyou Juan Jun 2002Journal of Applied Polymer Science2002,85,:1
15Immobilization of Cibacron blue F3GA on electrospun polysulphone ultra-fine fiber surfaces towards developing an afo finity membrane for albumin adsorption 显示文摘MA Zuwei MASAYA K RAMAKRISHNA S 2006Journal of Membrane Science2006,,282:1
16Reaction-controlled phase transfer catalysis for styrene epoxidation to styrene oxide with aqueous hydrogen peroxide显示文摘Yang Aoge Gao Shuang Xi Zuwei 2005Organic Process Research & Development2005,9,3:1
17Electrospun cellulose nanofiber as affinity membrane 显示文摘MA Zuwei KOTAKI M RAMAKRISHNA S 2005Journal of Membrane Science2005,,265:1
18Surface modified nonwoven polysulphone (PSU) fiber mesh by electrospinning: A novel affinity membrane显示文摘MA Zuwei KOTAKI M RAMAKRISHNA S 2006Journal of Membrane Science2006,,272:1
19Reaction-controlled phase-transfer catalysis for propylene epoxidation to propylene oxide 显示文摘XI Zuwei ZHOU Ning SUN Yu 2001Science2001,292,5519:1
20Induction of micronuclei in BALB/c-3T3 cells by selected chemicals and complex mixtures显示文摘Gu Zuwei Whong W Z Wallace W E 0,,:1
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