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Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

Juan XU,Yaquan WANG,Wenping FENG,Yi LIN,Shuhai WANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 478-487 doi: 10.1007/s11705-014-1453-7

Abstract: generated in the TS-1 crystals due to the random dissolution of framework silicon and the volume of the hollow

Keywords： titanium silicalite-1     triethylamine     hollow cavity     epoxidation of propylene     catalyst life    

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Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 673-683 doi: 10.1007/s11708-019-0630-2

Abstract: , the commercial software TracePro was used to investigate the effects of some factors on a conical cavityaffect the optical efficiency, the maximum heat flux density, and the light distribution in the conical cavityTo make a reliable simulation, the helical tube was attached to the inner wall of the cavity in the proposedThe conical cavity receiver had an optimal optical performance when the focal point of the collector

Keywords： parabolic collector     conical cavity receiver     critical geometric parameters     optical performance    

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Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 600-614 doi: 10.1007/s11709-022-0821-5

Abstract: The stress concentration of pipe structure or cavity defect has a great effect on the mechanical propertiesIn this experiment, the pressurized liquid can only contact the surface of the sample in the cavity,intact samples without a cavity.always secondary tensile fractures initiating from the cavity sidewall.in which the cavity size is added as an impact factor to predict the strength of the sample.

Keywords： high-performance concrete     cavity     conventional triaxial compression     pressurized liquid     modified power-law    

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Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 98-103 doi: 10.1007/s11708-010-0019-8

Abstract: In the design of the receiver, the heat flux distribution in the cavity should be considered first.numerical simulation using the Monte Carlo Method has been conducted on the heat flux distribution in the cavityBy tracing every solar ray, the distribution of heat flux density in the cavity receiver was obtainedThese results provide necessary data for the structure design of cavity receiver and the local thermal

Keywords： solar cavity receiver     Monte Carlo method     heat flux distribution    

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Nanostructured hollow spheres of hydroxyapatite: preparation and potential application in drug delivery

Xiaojing ZHANG, Weixin ZHANG, Zeheng YANG, Zhao ZHANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 246-252 doi: 10.1007/s11705-012-1299-9

Abstract: A solvothermal method has been successfully used to prepare nanostructured hydroxyapatite (HA) hollow(TEM) and field-emission scanning electron microscopy (FESEM) images show that the shells of the HA hollowThe HA hollow spheres exhibited a higher drug loading capacity and more favorable release properties

Keywords： hydroxyapatite     hollow spheres     synthesis     drug release    

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Seismic performance of precast hollow bridge piers with different construction details

Zhiqiang WANG,Jiping GE,Hongyi WEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 399-413 doi: 10.1007/s11709-014-0273-7

Abstract: Currently the design scheme of precast hollow concrete bridge piers will be adopted in bridge designFor comparative study of seismic performance of the hollow bridge piers which had different design details, six specimens of hollow section bridge pier were designed and tested.

Keywords： hollow pier     seismic performance     cyclic load     precast concrete     bridge columns    

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Impingement of hollow cone spray on hot porous medium

ZHAO Zhiguo, XIE Maozhao

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 273-278 doi: 10.1007/s11708-008-0048-8

Abstract: understanding of the formation of homogenous mixture in a porous medium engine, the interaction between hollowmodel, heat transfer model and linearized instability sheet atomization (LISA) model to simulate the hollowWith a simple model to describe the structure of the porous medium, the interaction between hollow cone

Keywords： improved version     simple     impingement     atomization     hollow    

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―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 489-497 doi: 10.1007/s11708-009-0040-y

Abstract: of Steam and Gas Turbines, RWTH Aachen University, to analyze the flow structure inside the rotating cavitythe experimental and numerical results show that the whole flow structure rotating slower than the cavityIt is suggested that the vortices inside the cavity are created by the gravitational buoyancy force in

Keywords： rotating cavity     buoyancy     unsteady flow    

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Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 462-467 doi: 10.1007/s11705-009-0011-1

Abstract: EVAL hollow fiber membrane adsorbents filled with powder D061-type cation exchange resin were preparedThe results showed that EVAL hollow fiber membrane adsorbents filled with D061-type cation exchange resins

Keywords： substrate     copolymer EVAL     exchange     EVAL hollow     resin-filled content    

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Geometric optimization model for the solar cavity receiver with helical pipe at different solar radiation

Chongzhe ZOU, Huayi FENG, Yanping ZHANG, Quentin FALCOZ, Cheng ZHANG, Wei GAO

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 284-295 doi: 10.1007/s11708-019-0613-3

Abstract: geometric parameters, several researches have already optimized the thermal efficiency of the cylindrical cavityThis study constructed a 3-D numerical model of cylindrical cavity receiver with DNI variation.In the model of a cylindrical cavity receiver containing a helical pipe, the heat losses of the cavity400 W/m to 800 W/m , there exists a best design for achieving a highest thermal efficiency of the cavity

Keywords： cylindrical cavity receiver     3-D numerical simulation     geometric optimization     direct normal irradiation    

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Preparation and characterization of alumina hollow fiber membranes

Tao WANG, Yuzhong ZHANG, Guangfen LI, Hong LI

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 265-271 doi: 10.1007/s11705-009-0010-2

Abstract: The inorganic hollow fiber membranes are of great interest due to their high resistance to abrasion,In this study, the alumina (Al O ) hollow fiber membranes were prepared by a combined phase-inversion, which was then sintered at elevated temperatures in order to obtain the Al O hollow fiber membraneThe prepared Al O hollow fiber membranes were characterized by a scanning electron microscope (SEM)The morphology investigation also revealed that the prepared Al O hollow fiber membrane retained its

Keywords： Al2O3     ceramic membranes     hollow fiber    

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Applications of hollow nanomaterials in environmental remediation and monitoring: A review

Yuankai ZHANG,Zhijiang HE,Hongchen WANG,Lu QI,Guohua LIU,Xiaojun ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 770-783 doi: 10.1007/s11783-015-0811-0

Abstract: Hollow nanomaterials have attracted significant attention because of their high chemical and thermalHollow nanomaterials showed higher photocatalytic activity than those without hollow structure owingAnd, the Doping method could improve the photocatalytic performance of hollow nanomaterials further under

Keywords： hollow nanomaterials     environmental remediation     nanotechnology     nanostructures     morphology    

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Hot-dip galvanizing of cold-formed steel hollow sections: a state-of-the-art review

Min SUN, Jeffrey A. PACKER

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 49-65 doi: 10.1007/s11709-017-0448-0

Abstract: A good understanding of the effects of galvanizing on the short- and long-term behaviours of steel components is essential for structural design. This review paper is motivated by a series of recent reports on cracking in galvanized cold-formed tubular steel structures and the limitations of current steel product standards and steel design specifications in this field. The steel-related and galvanizing-related factors, different pre-galvanizing countermeasures for brittle cracking and the available technical documents are summarized. An extensive bibliography is provided as a basis for future research and development in this field.

Keywords： cold-formed steel     hollow structural sections     hot-dip galvanizing     embrittlement     heat-treatment     residual    

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Ag/PMMA hollow waveguide for solar energy transmission

He LAN, Jianjun HAN, Hongping CHEN, Xiujian ZHAO

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 303-307 doi: 10.1007/s11705-010-0565-y

Abstract: This paper describes an elaborate study on obtaining Ag/PMMA (polymethyl methacrylate) leaky hollow waveguideThrough analyses and comparison, a quartz capillary with the inner diameter of 2 mm was chosen as hollowhas the similar spectrum as the sunlight to test and analyze the performance of the Ag/PMMA leakage hollowMeanwhile, the Ag/PMMA leaky-type hollow waveguide in this work had good qualities.

Keywords： hollow waveguide     transmit the solar energy     Ag/PMMA multiple film     parabolic collector    

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Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Frontiers of Chemical Science and Engineering   Pages 1659-1671 doi: 10.1007/s11705-022-2173-z

Abstract: Here, CaCO3 hollow microspheres, a high-value product was synthesized from such a reactionIt is found that there is a transformation of CaCO3 particles from solid-cubic nuclei to hollowTherefore, in absence of auxiliaries, the formation of hollow structures mainly depended on the growthand its changes during the growth process point to the inside–out Ostwald effect in the formation of hollow

Keywords： distiller waste     CO2     hollow microsphere     CaCO3     Ca(OH)2     inside−out    

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Title Author Date Type Operation

Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

Juan XU,Yaquan WANG,Wenping FENG,Yi LIN,Shuhai WANG

Journal Article

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Journal Article

Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Journal Article

Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Journal Article

Nanostructured hollow spheres of hydroxyapatite: preparation and potential application in drug delivery

Xiaojing ZHANG, Weixin ZHANG, Zeheng YANG, Zhao ZHANG

Journal Article

Seismic performance of precast hollow bridge piers with different construction details

Zhiqiang WANG,Jiping GE,Hongyi WEI

Journal Article

Impingement of hollow cone spray on hot porous medium

ZHAO Zhiguo, XIE Maozhao

Journal Article

―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Journal Article

Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Journal Article

Geometric optimization model for the solar cavity receiver with helical pipe at different solar radiation

Chongzhe ZOU, Huayi FENG, Yanping ZHANG, Quentin FALCOZ, Cheng ZHANG, Wei GAO

Journal Article

Preparation and characterization of alumina hollow fiber membranes

Tao WANG, Yuzhong ZHANG, Guangfen LI, Hong LI

Journal Article

Applications of hollow nanomaterials in environmental remediation and monitoring: A review

Yuankai ZHANG,Zhijiang HE,Hongchen WANG,Lu QI,Guohua LIU,Xiaojun ZHANG

Journal Article

Hot-dip galvanizing of cold-formed steel hollow sections: a state-of-the-art review

Min SUN, Jeffrey A. PACKER

Journal Article

Ag/PMMA hollow waveguide for solar energy transmission

He LAN, Jianjun HAN, Hongping CHEN, Xiujian ZHAO

Journal Article

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Journal Article