http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Bao-Shou Zhang,Baowei Song,Jun Jiang,Zhao-Yong Mao 대한조선학회 2016 International Journal of Naval Architecture and Oc Vol.8 No.5
Four-rotor dish-shaped unmanned underwater vehicles (FRDS UUVs) are new type underwater vehicles. The main goal of this paper is to develop a quick method to optimize the design of hydraulic support landing platform for the new UUV. In this paper, the geometry configuration and instability type of the platform are defined. Computational investigations are carried out to study the hydrodynamic performance of the landing platform using the Computational Fluid Dynamics (CFD) method. Then, the response surface model of the optimization objective is established. The intelligent particle swarm optimization (PSO) is applied to finding the optimal solution. The result demonstrates that the stability of landing platform is significantly improved with the global objective index increasing from 1.045 to 1.158 (10.86% higher) after the optimization process.
Zhang, Bao-Shou,Song, Bao-Wei,Jiang, Jun,Mao, Zhao-Yong The Society of Naval Architects of Korea 2016 International Journal of Naval Architecture and Oc Vol.8 No.5
Four-rotor dish-shaped unmanned underwater vehicles (FRDS UUVs) are new type underwater vehicles. The main goal of this paper is to develop a quick method to optimize the design of hydraulic support landing platform for the new UUV. In this paper, the geometry configuration and instability type of the platform are defined. Computational investigations are carried out to study the hydrodynamic performance of the landing platform using the Computational Fluid Dynamics (CFD) method. Then, the response surface model of the optimization objective is established. The intelligent particle swarm optimization (PSO) is applied to finding the optimal solution. The result demonstrates that the stability of landing platform is significantly improved with the global objective index increasing from 1.045 to 1.158 (10.86% higher) after the optimization process.
Bao Jian,Chen Zheng-Shou 대한조선학회 2021 International Journal of Naval Architecture and Oc Vol.13 No.1
Numerical simulations of the Vortex-Induced Vibration (VIV) about a large-scale flexible pipe subject to shear flow were carried out in this paper. Efficiency verification was performed firstly, validating that the proposed fluid–structure interaction solution strategy is competent in predicting the VIV response. Then, the VIV characteristics related to multi-mode and spanwise hybrid waveform about the flexible pipe attributed to shear flow were investigated. When inflow velocity rises, higher vibration modes are apt to be excited, and the spanwise waveform easily convertes from a standing-wave-dominated status to a hybrid standing–traveling wave status. The multi-mode or even multiple-dominant-mode is prone to occur, that is, the dominant mode is often followed by several apparent subordinate modes with considerable vibration energy. Hence, the shedding frequencies no longer obey Strouhal law, and vibration trajectories become intricate. According to the motion analysis concerning the coupled cross-flow and in-line vibrations, as well as the corresponding wake patterns, a tight coupling interaction exists between the structural deformation and the wake flow behind the flexible pipe. In addition, the evolution of the vortex tube along the pipe span and a strong 3D effect are observed due to the slenderness of the flexible pipe and the variability of the vortex shedding attributed to the shear flow.
Multi-Receiver Quantum Dense Coding with a Non-Symmetric Quantum Channel
Chang-Bao Fu,Shou Zhang,엄정인,Ke-Li,연규황 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.5I
A two-receiver quantum dense coding scheme and an N-receiver quantum dense coding scheme, in the case of non-symmetric Hilbert spaces of the particles of the quantum channel, are investigated in this paper. A sender can send his messages to many receivers simultaneously. The scheme can be applied to quantum secret sharing and controlled quantum dense coding.
Controlled Secure Direct Communication by Using GHZ Entangled State
Yan XIA,Shou ZHANG,Chang-Bao FU,엄정인,Feng-Yue LI,연규황 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.3
We present a controlled secure direct communication protocol by using Greenberger-Horne-Zeilinger (GHZ) entangled state via swapping quantum entanglement and local unitary operations. Since messages transferred only by using local operations and a public channel after entangled states are successfully distributed, this protocol can protect the communication against a destroying-travel-qubit-type attack. This scheme can also be generalized to a multi-party controlsystem.
Quantum Dialogue by Using the GHZ State
Yan XIA,Shou ZHANG,Chang-Bao FU,엄정인,연규황,홍석경 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.I
We present a quantum dialogue protocol by using the Greenberger-Horne-Zeilinger (GHZ) state. In this paper, we point out that the ‘quantum dialogue’ communication scheme recently introduced by Nguyen can be eavesdropped on under an intercept-and-resend attack. We also give a revised control mode to detect this attack. Hence, within the present version two users can exchange their secret messages securely and simultaneously, and the efficiency of information transmission can be successfully increased. We present a quantum dialogue protocol by using the Greenberger-Horne-Zeilinger (GHZ) state. In this paper, we point out that the ‘quantum dialogue’ communication scheme recently introduced by Nguyen can be eavesdropped on under an intercept-and-resend attack. We also give a revised control mode to detect this attack. Hence, within the present version two users can exchange their secret messages securely and simultaneously, and the efficiency of information transmission can be successfully increased.
APPROACH TO CONTROL METHOD OF PLANNING LEVEL FOR EXCAVATING ROBOT
Qian, Sun Shou,Ming, Xu Hai,Jun, Wang Yi,Liang, He Bao 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1
The method of path planning and trajectory planning are studied. The control of planning level for whole work cycle process and excavating process based on predetermined path and force monitor is realized on an experimental prototype. The software of three dimensional dynamic simulation is developed to examine the control method of planning level.
Yan Xia,Shou Zhang,Chang-bao Fu,엄정인,연규황 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.2
We propose a scheme to teleport an arbitrary and unknown three-particle state by using a nonmaximally four-particle entangled state and a non-maximally three-particle GHZ state from a sender to either one of two receivers. We show that teleportation can be successfully realized with a certain probability by performing three Bell-states measurements on the sender’s side and by introducing a Hadamard operation on the receiver’s side conditioned on an appropriate unitary transformation on the other possible receiver’s side We propose a scheme to teleport an arbitrary and unknown three-particle state by using a nonmaximally four-particle entangled state and a non-maximally three-particle GHZ state from a sender to either one of two receivers. We show that teleportation can be successfully realized with a certain probability by performing three Bell-states measurements on the sender's side and by introducing a Hadamard operation on the receiver's side conditioned on an appropriate unitary transformation on the other possible receiver's side.