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Search Results: 1 - 10 of 147584 matches for " LI Zhi-qiang "
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Research and Application of Code Automatic Generation Algorithm Based on Structured Flowchart  [PDF]
Xiang-Hu Wu, Ming-Cheng Qu, Zhi-Qiang Liu, Jian-Zhong Li
Journal of Software Engineering and Applications (JSEA) , 2011, DOI: 10.4236/jsea.2011.49062
Abstract: It is of great significance to automatically generate code from structured flowchart. There are some deficiencies in existing researches, and their key algorithms and technologies are not elaborated, also there are very few full-featured integrated development platforms that can generate code automatically based on structured flowchart. By analyzing the characteristics of structured flowchart, a structure identification algorithm for structured flowchart is put forward. The correctness of algorithm is verified by enumeration iteration. Then taking the identified flowchart as input, an automatic code generation algorithm is proposed. Also the correctness is verified by enumeration iteration. Finally an integrated development platform is developed using those algorithms, including flowchart modeling, code automatic generation, CDT\GCC\GDB etc. The correctness and effectiveness of algorithms proposed are verified through practical operations.
Gluing approximate solutions of minimum type on the Nehari manifold
Yanyan Li,Zhi-Qiang Wang
Electronic Journal of Differential Equations , 2001,
Abstract: In the last decade or so, variational gluing methods have been widely used to construct homoclinic and heteroclinic type solutions of nonlinear elliptic equations and Hamiltonian systems. This note is concerned with the procedure of gluing mountain-pass type solutions. The first procedure to glue mountain-pass type solutions was developed through the work of Sere, and Coti Zelati - Rabinowitz. This procedure and its variants have been extensively used in many problems by now for nonlinear equations with superlinear nonlinearities. In this note we provide an alternative device to the by now standard procedure which allows us to glue minimizers on the Nehari manifold together as genuine, multi-bump type, solutions.
An Ultra-Compact Dual-Band Antenna with Tuning Arms for WLAN Applications
Hong-Sha Ding;Zhi-Qiang Li;Peng Gao
PIER Letters , 2011, DOI: 10.2528/PIERL11011807
Abstract: An ultra-compact dual-band printed antenna is proposed. Connective and concentric double split rings (CCDSR) are used to generate two resonant frequencies in wireless local area network (WLAN) frequency bands. Tuning arms are added to the microstrip fed line, which can be used to tune the upper frequency band. The dimension of this antenna is only 9×24×1mm, much smaller than those reported antennas. The measured -10 dB bandwidth in the 2.44GHz band is 140MHz (2.37-2.51GHz) and in 5.34GHz is 1.23GHz (4.86-6.09GHz), covering the 2.4/5.2/5.8GHz WLAN operating bands. Good radiations at these bands are also observed.
Robot Global Path Planning Based on Improved Artificial Fish-Swarm Algorithm
Jiansheng Peng,Xing Li,Zhi-Qiang Qin,Guan Luo
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: In This study, a new artificial fish-swarm optimization, to improve the foraging behavior of artificial fish swarm algorithm is closer to reality in order to let the fish foraging behavior, increase a look at the link (search) ambient, after examining environment, artificial fish can get more status information of the surrounding environment. Artificial fish screened from the information obtained optimal state for the best direction of movement. Will improve the foraging behavior of artificial fish-swarm algorithm applied to robot global path planning, including the robot to bypass the analog obstacles selected three ways: go obstructions outside, go inside the obstacles, both away obstructions and went outside obstacles Thing achieve robot shortest path planning. Via the MATLAB software emulation test: the improved foraging behavior of artificial fish-swarm algorithm to improve the rapid convergence of the algorithm and stability, improve fish swarm algorithm to the adaptability of the robot global path planning.
ATCA Detection of SiO Masers in the Inner Parsecs of the Galactic Center
Juan Li,Tao An,Zhi-Qiang Shen,Atsushi Miyazaki
Physics , 2010,
Abstract: We present sensitive Australia Telescope Compact Array (ATCA) observations of SiO masers in the inner parsecs of the Galactic center (GC). We detected five SiO J=2-1, v=1 (86 GHz) masers in the innner 25 arcsec (1 pc) of the GC. All the detected 86 GHz SiO masers are previously known SiO J=1-0, v=1 (43 GHz) masers and associated with late-type stars. Eighteen 43 GHz SiO masers were detected within 50 arcsec (2 pc) of Sagittarius A*. Among them, seven are detected for the first time, which brings the total number of 43 GHz SiO masers to 22 in this region.
Decoherence and purity of a driven solid-state qubit in Ohmic bath
Zhi-Qiang Li,Xian-Ting Liang
Physics , 2008, DOI: 10.1016/j.physe.2007.12.003
Abstract: In this paper we study the decoherence and purity of a driven solid-state qubit in the Ohmic bath by using the method based on the master equation. At first, instead of solving the master equation we investigate the coefficients of the equation which describe the shift in frequency, diffusive, decoherence, and so on. It is shown that one of the coefficients (we called it decoherence coefficient) is crucial to the decoherence of the qubit in the model. Then we investigate the evolution of the purity of the state in the model. From the analysis of the purity we see that the decoherence time of the qubit decrease with the increase of the amplitude of the driven fields and it is increase with the increase of the frequency of the driven fields.
ATCA observations of SiO masers in the Galactic center
Juan Li,Tao An,Zhi-Qiang Shen,Atsushi Miyazaki
Physics , 2010,
Abstract: We present the Australia Telescope Compact Array (ATCA) observations of the SiO masers in the Galactic center in transitions of v=1, J=2--1 at 86 GHz and v=1, J=1--0 at 43 GHz. Two 86-GHz SiO masers were detected within the central parsec, and they are associated with IRS 10EE and IRS 15NE, respectively. We detected eighteen 43-GHz SiO masers within a projected separation of <2 pc from Sagittarius A* (Sgr A*), among which seven masers are newly discovered from our observations. This raises the total number of 43-GHz SiO masers within the central 4 parsecs of the GC region to 22. Simultaneous observations at 86 and 43 GHz showed that the intensity of 43-GHz SiO maser is ~3 times higher than that of 86-GHz maser in IRS 10EE (an OH/IR star), while the integrated flux of the SiO maser emission at 43 GHz is comparable with that at 86~GHz in IRS~15NE (an ordinary Mira variable). These results are consistent with previous observations of massive late-type stars in the Galaxy in which the 86-GHz SiO maser is in general weaker than the 43-GHz SiO maser in OH/IR stars, while the two transitions are comparably strong in Mira stars.
A Curve-based Material Recognition Method in MeV Dual-energy X-ray Imaging System
Zhi-qiang Chen,Tiao Zhao,Liang Li
Physics , 2014,
Abstract: High energy dual-energy X-ray Digital Radiography(DR) imaging is mainly used in material recognition of the cargo inspection. We introduce the development history and the principle of the technology and describe the data process flow of our system. The system corrects original data to get the dual-energy transparence image. Material categories of all points in the image are identified by the classification curve which is related to the X-ray energy spectrum. For the calibration of classification curve, our strategy involves a basic curve calibration and a real-time correction devoted to enhance the classification accuracy. Image segmentation and denoising methods are applied to smooth the image. The image contains more information after colorization. Some results show that our methods achieve the desired effect.
Heterogeneous Multi-task Learning for Human Pose Estimation with Deep Convolutional Neural Network
Sijin Li,Zhi-Qiang Liu,Antoni B. Chan
Computer Science , 2014,
Abstract: We propose an heterogeneous multi-task learning framework for human pose estimation from monocular image with deep convolutional neural network. In particular, we simultaneously learn a pose-joint regressor and a sliding-window body-part detector in a deep network architecture. We show that including the body-part detection task helps to regularize the network, directing it to converge to a good solution. We report competitive and state-of-art results on several data sets. We also empirically show that the learned neurons in the middle layer of our network are tuned to localized body parts.
Expert Survey on the Prevention and Treatment Situation of Traditional Chinese Medicine for Coronary Artery Disease  [PDF]
Ying-Fei Bi, Jing-Yuan Mao, Xian-Liang Wang, Zhi-Qiang Zhao, Bin Li, Ya-Zhu Hou
Chinese Medicine (CM) , 2015, DOI: 10.4236/cm.2015.62012
Abstract: Objective: To grasp the current situation of Traditional Chinese Medicine (TCM) on prevention and treatment for coronary artery disease (CAD) and the possible advantages and disadvantages. Method: Using a survey in the form of questionnaire among 60 cardiovascular disease experts, to grasp current situation of TCM on prevention and treatment of CAD and the possible advantages and disadvantages. Results: In most areas of China, CAD is common, and angina is the most common clinical type. More than 91% experts choose to integrate traditional and western medicine for treatment and prevention of CAD. TCM proprietary medicine, traditional herbal decoction and intravenous TCM are widely used in the clinical work. Clinical advantages of TCM in the prevention of CAD that are listed in the questionnaire include improving symptoms, enhancing quality of life, increasing exercise tolerance, improving cardiac function, relieving angina, secondary prevention of myocardial infarction, etc. The shortcomings include troublesome brewing of herbal medicine, unpleasant taste of decoction, minimal clinical evidence, slow onset of effects and non-standardized prescription of medicine, etc. Conclusion: The survey reflects the present situation of clinical diagnosis and treatment of TCM on prevention and treatment of CAD to a certain extent; more accurate conclusions need the broader, deeper and large-scale clinical survey.
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