Search scope:
排序: Display mode:
Tayyab MEHMOOD, Hina QAYYUM, Salman GHAFOOR
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 2, Pages 300-306 doi: 10.1631/FITEE.1700056
A radio-over-fiber (RoF) distributed antenna system (DAS) architecture is proposed, where millimeterwave (mm-wave) signals are transmitted to four different radio access units (RAUs) arranged in a ringThe radio frequency (RF) signals are transmitted by polarization multiplexing a multi-wavelength source
Keywords: Radio over fiber Millimeter wave Radio access units
Situ Mengtian
Strategic Study of CAE 2001, Volume 3, Issue 7, Pages 64-69
Two difficult tedhnical problems in underground radio communications, i.e. weak signal reception and
Keywords: underground radio communications weak signal reception counter lightning interference
FM Radio Based Non-cooperative Bistatic Radar Experimental System
Wang Yan
Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 39-42
An experimental FM radio based non-cooperative bistatic radar is briefly
Keywords: FM radio non-cooperative bistatic radar LOS signal equalization DBF
Kinematic calibration of precise 6-DOF stewart platform-type positioning systems for radio telescope
Juan Carlos JáUREGUI, Eusebio E. HERNáNDEZ, Marco CECCARELLI, Carlos LóPEZ-CAJúN, Alejandro GARCíA
Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3, Pages 252-260 doi: 10.1007/s11465-013-0249-7
The pose accuracy of a parallel robot is a function of the mobile platform posture. Thus, there is no a single value of the robot’s accuracy. In this paper, two novel methods for estimating the accuracy of parallel robots are presented. In the first method, the pose accuracy estimation is calculated by considering the propagation of each error, i.e., error variations are considered as a function of the actuator’s stroke. In the second method, it is considered that each actuator has a constant error at any stroke. Both methods can predict pose accuracy of precise robots at design stages, and/or can reduce calibration time of existing robots. An example of a six degree-of-freedom parallel manipulator is included to show the application of the proposed methods.
Keywords: pose errors error estimation parallel robot radio telescopes
Performance of fiber reinforced clayey sand composite
Amin CHEGENIZADEH, Hamid NIKRAZ
Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2, Pages 147-152 doi: 10.1007/s11709-012-0158-6
Keywords: triaxial consolidated undrained (CU) fiber strength
Mechanical properties of steel, glass, and hybrid fiber reinforced reactive powder concrete
Atheer H.M. ALGBURI, M. Neaz SHEIKH, Muhammad N.S. HADI
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4, Pages 998-1006 doi: 10.1007/s11709-019-0533-7
Keywords: reactive powder concrete steel fiber glass fiber hybrid fiber
Modeling of heat and mass transfer for timber during radio-frequency and convective drying
Jia Xiaoran,Zhao Jingyao and Cai Yingchun
Strategic Study of CAE 2014, Volume 16, Issue 4, Pages 106-112
Keywords: timber radio- frequency- convective drying mathematical model difference equation
The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad
Liu Liangyan
Strategic Study of CAE 2001, Volume 3, Issue 9, Pages 86-94
Keywords: optical communication low transmission loss optical fiber optical fiber band band optical fiber cable
Study on Several Radio Propagation Models in ITU - R Recommendations
Zhang Minggao
Strategic Study of CAE 2000, Volume 2, Issue 7, Pages 74-78
Studies are presented on five radio propagation models in ITU - R recommendations.
Keywords: radio propagation tropospheric scatter sea reflection ionospheric scintillation attenuation by atmospheric
Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3, Pages 411-428 doi: 10.1007/s11709-023-0928-3
Keywords: pre-stressed concrete sleeper ultrahigh performance fiber-reinforced concrete pull-out test staticbending test steel fiber aspect ratio volume fraction
Studies of fiber-matrix debonding
Navneet DRONAMRAJU,Johannes SOLASS,Jörg HILDEBRAND
Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 448-456 doi: 10.1007/s11709-015-0316-8
Keywords: single fibre cohesive zone model interface debonding carbon fiber reinforced composite (CFRP)
Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1, Pages 82-92 doi: 10.1007/s11705-022-2181-z
Keywords: amination alcohol cerium nickel acidity interaction
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 1025-1037 doi: 10.1007/s11709-021-0741-9
Keywords: cemented paste backfill fiber reinforcement constitutive behavior temperature tailings
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7, Pages 840-852 doi: 10.1007/s11705-022-2253-0
Keywords: phosphate adsorption aminated polypropylene fiber Fe3+ ligand exchange reusability
Supersonic flows over cavities
FANG Tianwen, DING Meng, ZHOU Jin
Frontiers in Energy 2008, Volume 2, Issue 4, Pages 528-533 doi: 10.1007/s11708-008-0055-9
Keywords: supersonic different ratio
Title Author Date Type Operation
Polarizationmultiplexing based duplex radio-over-fiber link for millimeterwave signal transmission toa ring of multiple radio access units
Tayyab MEHMOOD, Hina QAYYUM, Salman GHAFOOR
Journal Article
The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio
Situ Mengtian
Journal Article
Kinematic calibration of precise 6-DOF stewart platform-type positioning systems for radio telescope
Juan Carlos JáUREGUI, Eusebio E. HERNáNDEZ, Marco CECCARELLI, Carlos LóPEZ-CAJúN, Alejandro GARCíA
Journal Article
Performance of fiber reinforced clayey sand composite
Amin CHEGENIZADEH, Hamid NIKRAZ
Journal Article
Mechanical properties of steel, glass, and hybrid fiber reinforced reactive powder concrete
Atheer H.M. ALGBURI, M. Neaz SHEIKH, Muhammad N.S. HADI
Journal Article
Modeling of heat and mass transfer for timber during radio-frequency and convective drying
Jia Xiaoran,Zhao Jingyao and Cai Yingchun
Journal Article
The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad
Liu Liangyan
Journal Article
Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete
Journal Article
Studies of fiber-matrix debonding
Navneet DRONAMRAJU,Johannes SOLASS,Jörg HILDEBRAND
Journal Article
Time- and temperature-dependence of compressive and tensile behaviors of polypropylene fiber-reinforced
Journal Article
Fabrication of recyclable Fe chelated aminated polypropylene fiber for efficient clean-up of phosphate
Journal Article