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Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Frontiers in Energy 2013, Volume 7, Issue 4, Pages 506-510 doi: 10.1007/s11708-013-0275-5

Abstract: The collision frequency function for aerosol particles has already been calculated for the free moleculemagnetic force, electric force and molecular forces, created by particles themselves, recalculated the collisionAttractive forces increase naturally the collision frequency, while repulsive forces decrease it.

Keywords： aerosol particles collision frequency function coagulation

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The research of ship-bridge collision protection system for Taizhou Bridge

Shen Gang,Fu Yaohua,Jin Yunnlong

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 73-77

Abstract:

The risk of ship collision to the center tower located at the edge ofcombination of ship navigation planning, bridge parameters and characteristics of bridge foundation, the ship collisionThe safety of the bridge and effectiveness of the protection system under ship collision is studied by

Keywords： ship-bridge collision ship-collision force the numerical simulation of ship collision pile supported

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An Intelligent System for Navigation Collision Prevention

Hao Yanling,Liu Yuhong,Sun Feng,Sun Yao

Strategic Study of CAE 2000, Volume 2, Issue 3, Pages 48-53

Abstract:

The purpose of this thesis is to developing and exploiting an intelligent system for collision prevention, namely “Intelligent Collision Prevention Expert System for Navigation”(NICPES).The NICPES has a multi-unit and layering Knowledge Base systematic structure and a multi-unit KnowledgeFor-some problems in collision prevention region, the NICPES builds a set of models to solve them.These models comprise the models of judging collision risk, the model of determining collision prevention

Keywords： collision prevention expert system neural network fuzzy technique multi-target optimizing

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Challenge and Innovation in Sutong Bridge Foundation Proje ct

You Qingzhong,Dong Xuewu,Wu Shouchang

Strategic Study of CAE 2007, Volume 9, Issue 6, Pages 22-26

Abstract: establish a construction platform for Sutong Bridge' s super-large and deep-pile groups ; Permanent collisionfacilities consisting of collision structure and 5 000 ton steel cofferdam which is lowered as a whole

Keywords： Sutong Bridge construction platform steel cofferdam collision structure lowering as awhole permanent

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Modeling and analysis of landing collision dynamics for a shipborne helicopter

Dingxuan ZHAO, Haojie YANG, Carbone GIUSEPPE, Wenhang LI, Tao NI, Shuangji YAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1, Pages 151-162 doi: 10.1007/s11465-020-0617-z

Abstract: based on small-angle approximation to improve the simulation model for shipborne helicopter landing collisionResults show that the proposed dynamic model can simulate the collision motion of helicopter landing

Keywords： shipborne helicopter landing model Lagrange equations dynamics validation

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Controlling the contact levels of details for fast and precise haptic collision detection Article

A Ram CHOI, Sung Min KIM, Mee Young SUNG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8, Pages 1117-1130 doi: 10.1631/FITEE.1500498

Abstract: For accurate and stable haptic rendering, collision detection for interactive haptic applications hasOur method is composed mainly of two parts: bounding sphere formation and two-level collision detectionTwo-level collision detection has two stages as well: fast detection of spheres and precise detectionOnce a collision is probed, a more precise detection is executed by examining the distance between aTo achieve this refined level of detection, a special data structure of a bounding volume needs to be

Keywords： Collision detection Haptic rendering Bounding sphere Clustering Contact levels of details (CLOD)

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Using improved particle swarm optimization totune PID controllers in cooperative collision avoidance Article

Xing-chen WU, Gui-he QIN, Ming-hui SUN, He YU, Qian-yi XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9, Pages 1385-1395 doi: 10.1631/FITEE.1601427

Abstract: The introduction of proportional-integral-derivative (PID) controllersinto cooperative collision avoidancecontrollers usingan improved particle swarm optimization (PSO) algorithm, and to bettermanipulate cooperative collision

Keywords： Cooperative collision avoidance system (CCAS) Improved particle swarm optimization (PSO) PID controller

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Anti-collision monitoring based on detecting casing head vibration induced by drill movements

He Baosheng,Liu Gang,Wang Shuangping,Wen Min

Strategic Study of CAE 2011, Volume 13, Issue 5, Pages 74-78

Abstract: justify;">Now encryption adjustment wells are getting widely used in offshore, and the risk of well collisionWell anti-collision is becoming more and more important.An anti-collision monitoring system based on detecting casing head vibration induced by drilling movementsIt also indicates that the anti-collision monitoring system for detecting casing head vibration is practicable

Keywords： encryption adjustment well anti-collision risk well vibration signal time domain analysis frequency

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Dynamic response of precast segmental bridge columns under heavy truck impact

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3, Pages 327-349 doi: 10.1007/s11709-023-0911-z

Abstract: simulation results demonstrated that the engine and cargo caused two major peak impact forces during collision

Keywords： precast segmental bridge columns heavy truck collision dynamic response

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Probabilistic model for vessel-bridge collisions in the Three Gorges Reservoir

Bo GENG , Hong WANG , Junjie WANG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3, Pages 279-285 doi: 10.1007/s11709-009-0044-z

Abstract: Three Gorges Reservoir, and an analysis of the geometric probabilistic model of transiting vessels in collision

Keywords： vessel-bridge collision probabilistic model parameter statistics

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Influence of pore structure on biologically activated carbon performance and biofilm microbial characteristics

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1419-1

Abstract:

• Pore structure affects biologically activated carbon performance.

Keywords： Granular activated carbon Biologically activated carbon filter Bacterial community structure Porestructure

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Hierarchical fractal structure of perfect single-layer graphene

T. Zhang, K. Ding

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 371-382 doi: 10.1007/s11465-013-0279-1

Abstract:

The atomic lattice structure of perfect single-layer graphene that can actually be regarded as a kindof hierarchical fractal structure from the perspective of fractal geometry was studied for the firstThree novel and special discoveries on hierarchical fractal structure and sets were unveiled upon examinationThe interior fractal-type structure was discovered to be the fifth space-filling curve from physicalA fundamental example of a multi-fractal structure was also presented.

Keywords： hierarchical fractal structure fractal dimension the fifth space-filling curve multi-fractal structure

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Floating forest: A novel breakwater-windbreak structure against wind and wave hazards

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1111-1127 doi: 10.1007/s11709-021-0757-1

Abstract: A novel floating breakwater-windbreak structure (floating forest) has been designed for the protectionThe modular arch-shaped concrete structure is positioned perpendicularly to the direction of the prevailingThe structure below the water surface acts as a porous breakwater with wave scattering capability.

Keywords： floating structure breakwater windbreak hydrodynamic CFD

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Bicontinuous porous membranes with micro-nano composite structure using a facile atomization-assisted

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1268-1280 doi: 10.1007/s11705-022-2143-5

Abstract: The micro-nano composite structure can endow separation membranes with special surface properties, butusing this method, a bicontinuous porous microfiltration membrane with robust micro-nano composite structureThe formation mechanism of the micro-nano composite structure was proposed.

Keywords： atomization nonsolvent induced phase separation bicontinuous porous structure micro-nano compositestructure oil-water separation

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Smart optical-fiber structure monitoring based on granular computing

Guan LU, Dakai LIANG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4, Pages 462-465 doi: 10.1007/s11465-009-0073-2

Abstract: self-diagnosing system in health monitoring has become an important direction of smart materials and structurethe requirement of damage detection by analyzing digital signals and character signals of the smart structurepaper investigates an optic fiber smart layer and presents a method for realizing optic fiber smart structureAfter the analysis, it is presumed that optic fiber smart structure monitoring based on granular computation

Keywords： smart material and structure GrC optical fiber sensor rough set clustering algorithm