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Analysis on the Performance of Lightwave in the Large-core Optical Fiber Connector

Wang Yunming,Sun Xiaohan,Zhang Mingde

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 52-56

Abstract:

An analytical model for the large-core optical fiber connector is presented based on beam propagation

Keywords： beam propagation method (BPM)     large-core optical fibers     tapered connector     insert loss    

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Optical Fiber Communication Technology: Present Status and Prospect

Tan Zhongwei, Lu Chao

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 100-107 doi: 10.15302/J-SSCAE-2020.03.016

Abstract:

As an important application of laser technology, optical fiber communicationsThrough analysis, the challenges in optical fiber communication systems with an ultra-large capacityresearch on low-loss optical fibers and technologies related to space division multiplexing.In general, the optical fiber communication technology is evolving toward the direction of ultra-largehoped to realize intelligent monitoring of network parameters, as well as ultra-long distance and ultra-large

Keywords： optical fiber communications     optical networks     ultra-large capacity     integration     intelligence    

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Design of the Optical System with Large Relative Aperture and Large Linear Field of View

Pan Junye

Strategic Study of CAE 2000, Volume 2, Issue 8,   Pages 89-90

Abstract:

In this paper following discussion the author concluded that the optical system for IR detecting inthe distance should be an total reflecting off-axis aspheric system with large relative aperture andlarge field of view.

Keywords： IR detecting     relative aperture     large field of view     off-axis system     aspheric surface    

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Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 81-91 doi: 10.1007/s11709-018-0468-4

Abstract: Fiber reinforced polymer(FRP) have unique advantages like high strength to weight ratio, excellent corrosion resistance, improving deformability and cost effectiveness. These advantages have gained wide acceptance in civil engineering applications. FRP tendons for prestressing applications are emerging as one of the most promising technologies in the civil engineering industry. However, the behavior of such members under the influence of elevated temperatures is still unknown. The knowledge and application of this could lead to a cost effective and practical considerations in fire safety design. Therefore, this study examines the deflection behavior of the carbon fiber reinforced polymer(CFRP) prestressed concrete beam at elevated temperatures. In this article, an analytical model is developed which integrates the temperature dependent changes of effective modulus of FRP in predicting the deflection behavior of CFRP prestressed concrete beams within the range of practical temperatures. This model is compared with a finite element mode (FEM) of a simply supported concrete beam prestressed with CFRP subjected to practical elevated temperatures. In addition, comparison is also made with an indirect reference to the real behavior of the material. The results of the model correlated reasonably with the finite element model and the real behavior. Finally, a practical application is provided.

Keywords： FRP     CFRP     concrete     elevated temperatures     deflections     prestress    

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Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene fibers

Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 821-830 doi: 10.1007/s11709-019-0518-6

Abstract: studies have evaluated the effects of additives such as nano-silica (NS), micro-silica (MS) and polymer fibersIn this study, 12 mix designs containing different percentages of MS, NS, and polymer fibers in threeWhile, polymer fibers don’t have significant effect in compressive strength considering CSCs.

Keywords： mixture method     compressive strength     nano-silica     micro-silica     polypropylene fibers    

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Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1338-1349 doi: 10.1007/s17009-019-0558-2

Abstract: In the present study, steel and polypropylene (PP) fibers have been utilized with the intent of obtainingIt was observed that steel fibers are more effective in the improvement of flexural toughness in thepresence of PP fibers.Furthermore, synergy associated with the combination of fibers at different stages of deflection of the

Keywords： hybrid fiber-reinforced concrete     synergy     toughness     steel fibers     polypropylene fibers    

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The effect of carbon nanotubes and polypropylene fibers on bond of reinforcing bars in strain resilient

Souzana P. TASTANI,Maria S. KONSTA-GDOUTOS,Stavroula J. PANTAZOPOULOU,Victor BALOPOULOS

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2,   Pages 214-223 doi: 10.1007/s11709-016-0332-3

Abstract: matrix comprises a novel, strain resilient cementitious composite (SRCC) reinforced with polypropylene fibersinvestigation were the material structure (comprising a basic control mix, reinforced with CNTs and/or PP fibersThe test results illustrate that all the benefits gained due to the synergy between PP fibers and CNTsresponse curves thus obtained were marked by a resilient appearance exhibiting sustained strength up to largeelasto-plastic bond response envelope was a result of the confining synergistic effect of CNTs and the PP fibers

Keywords： carbon nanotubes     strain resilient cementitious composite     polypropylene fibers     tensile bending     bond    

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Fe3O4 encapsulated mesoporous silica nanospheres with tunable size and large void

Tingting LIU, Lihong LIU, Jian LIU, Shaomin LIU, Shi Zhang QIAO

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 114-122 doi: 10.1007/s11705-014-1413-2

Abstract: Magnetic Fe O and mesoporous silica core-shell nanospheres with tunable size from 110–800 nm were synthesizedThese nanocomposites, which possess high surface area, large pore volume and well-defined pore size,Interestingly, magnetic core and mesoporous silica shell nanocomposites with large void pore (20 nm)Additionally, the obtained nanocomposites combined magnetization response and large void pore, implying

Keywords： mesoporous silicas     magnetic nanoparticles     core-shell nanoparticles     cell uptake    

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Recent developments in the application of oil palm fibers in cement composites

Emmanuel Owoichoechi MOMOH, Adelaja Israel OSOFERO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 94-108 doi: 10.1007/s11709-019-0576-9

Abstract: Fibers obtained from different parts of the oil palm tree (Elaeis guineensis) have been under investigationStudies have been carried out investigating the engineering properties and possible applications of these fibersThis review provides information about fibers from different parts of the oil palm, their properties,

Keywords： broom     cement composite     concrete     oil palm fiber     Natural fiber-concrete     sustainability    

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environmental temperature and relative humidity on photocatalytic oxidation of toluene on activated carbon fibers

GUO Ting, BAI Zhipeng, WU Can, ZHU Tan

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 224-229 doi: 10.1007/s11783-008-0039-3

Abstract: TiO supported on active carbon fiber (TiO/ACF), an absorbable photocatalyst, is a new kind of material applied in air purification. In this paper, the influence of environmental temperature (T) and relative humidity (RH) on the gas-solid adsorption of toluene and the photocatalytic oxidation (PCO) efficiency of adsorbed toluene on TiO/ACF were studied, and then, the purification capability of TiO/ACF was estimated. PCO results showed that although the PCO efficiency increased under high RH and T levels, the amount of adsorption of toluene decreased. Moreover, quantitative analysis results of intermediates indicated that more environmental risk emerged when PCO of toluene was carried out at higher environmental T and RH levels because more toxic intermediates would be accumulated on the TiO/ACF. So, it is significant to control the environmental T and RH conditions in the application of the PCO technique. T = 25°C and RH = 30% is the optimal condition for purifying toluene in our experimental system.

Keywords： application     gas-solid adsorption     technique     TiO/ACF     experimental    

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Vibration Serviceability of Large-span Steel–Concrete Composite Beam with Precast Hollow Core Slabs Under Article

Jiepeng Liu, Shu Huang, Jiang Li, Y. Frank Chen

Engineering 2022, Volume 19, Issue 12,   Pages 93-104 doi: 10.1016/j.eng.2021.04.025

Abstract:

A large-span steel–concrete composite beam with precast hollow core slabs (CBHCSs) is a relatively

Keywords： Composite beam     Hollow core slab     Walking force     Floor vibration     Mode shape    

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Analysis of the large farms biogas projects—take the Beijing Deqingyuan Biogas

Pan Wenzhi

Strategic Study of CAE 2011, Volume 13, Issue 2,   Pages 40-43

Abstract:

Combining the large and medium scale biogas project at home and abroadCombining with existing problems of biogas project, several recommendations to make the large and medium

Keywords： biogas project     Deqingyuan Biogas Project     core technology     prospects and advises    

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Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 1-31 doi: 10.1007/s11465-020-0602-6

Abstract: Optical interferometry is a powerful tool for measuring and characterizing areal surface topography inA variety of instruments based on optical interferometry have been developed to meet the measurementThis paper provides an in-depth perspective of surface topography reconstruction for optical interferometricPrinciples, configurations, and applications of typical optical interferometers with different capabilitiesThis paper also presents the new challenges that optical interferometry techniques are facing in surface

Keywords： surface topography     measurement     optical interferometry     coherence envelope     phase-shifting algorithm    

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Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract: and time consuming to use machining processes, such as grinding, polishing and lapping, to produce opticalPrecision glass molding (PGM) has thus been developed to realize an efficient manufacture of such opticalFor example, a PGM process must be carried out within the super-cooled region of optical glass abovemanufacturing chain consideration from mold material selection, property and deformation characterization of optical

Keywords： precision glass molding     optical lens     constitutive modeling     optimization     manufacturing chain     Industry    

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Speed Up the Development of Industrial Fibers Materials

Ji Guobiao

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 24-28

Abstract:

Review of 10 years development of industrial fibers materials indicates that they are still in a continuous

Keywords： China     strengthening     industrial fibers materials     accelerateing the development    

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Title Author Date Type Operation

Analysis on the Performance of Lightwave in the Large-core Optical Fiber Connector

Wang Yunming,Sun Xiaohan,Zhang Mingde

Journal Article

Optical Fiber Communication Technology: Present Status and Prospect

Tan Zhongwei, Lu Chao

Journal Article

Design of the Optical System with Large Relative Aperture and Large Linear Field of View

Pan Junye

Journal Article

Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Journal Article

Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene fibers

Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF

Journal Article

Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Journal Article

The effect of carbon nanotubes and polypropylene fibers on bond of reinforcing bars in strain resilient

Souzana P. TASTANI,Maria S. KONSTA-GDOUTOS,Stavroula J. PANTAZOPOULOU,Victor BALOPOULOS

Journal Article

Fe3O4 encapsulated mesoporous silica nanospheres with tunable size and large void

Tingting LIU, Lihong LIU, Jian LIU, Shaomin LIU, Shi Zhang QIAO

Journal Article

Recent developments in the application of oil palm fibers in cement composites

Emmanuel Owoichoechi MOMOH, Adelaja Israel OSOFERO

Journal Article

environmental temperature and relative humidity on photocatalytic oxidation of toluene on activated carbon fibers

GUO Ting, BAI Zhipeng, WU Can, ZHU Tan

Journal Article

Vibration Serviceability of Large-span Steel–Concrete Composite Beam with Precast Hollow Core Slabs Under

Jiepeng Liu, Shu Huang, Jiang Li, Y. Frank Chen

Journal Article

Analysis of the large farms biogas projects—take the Beijing Deqingyuan Biogas

Pan Wenzhi

Journal Article

Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Journal Article

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Journal Article

Speed Up the Development of Industrial Fibers Materials

Ji Guobiao

Journal Article