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Search Results: 1 - 10 of 42711 matches for " Jun Gong "
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Chinese Traditional Folk Pattern and Modern Graphic Design
Jun Gong
Asian Social Science , 2009, DOI: 10.5539/ass.v4n2p65
Abstract: Traditional Chinese folk graphics has been the rich cultural heritage of the nation, which provided a wealth of design elements for the modern graphic design. Modern graphic design blends with traditional Chinese folk patterns to give them new characteristics of the times, not only represents the traditional culture and innovation, but also indicates that China's graphic design is entering a new stage of development at the international level, to show the unique spirit of oriental culture.
Nurse Staff Allocation in a Multi-stage Queuing System with Patients’ Feedback Flow for an Outpatient Department  [PDF]
Huabo Zhu, Jiafu Tang, Jun Gong
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.53B019

A general multi-stage queuing system model with patients’ feedback flow is developed to address the behavior of patients’ flow in an Outpatient Department (OD) in a hospital. The whole process includes registration, diagnosis, chemical examination, payment, and medicine-taking. Focusing on nurse resources, the formulas of performance indicators such as patient waiting times and nurse idle times are derived by using the system parameters. A mathematical programming model is developed to determine how many nurses should be allocated to each stage to minimize the total costs of patient waiting times and nurse idle times. The neighborhood search combined Simulated Annealing (NS-SA) is developed to solve the model, which is essentially a natural number decomposition problem. Numerical experiments are conducted to analyze the discipline of nurse allocation and the impact of patient arrival rates and the probability of patient’s feedback flow on the system costs. The research results will be helpful for hospital managers to make decisions on allocation of nurse staff in practice.

A Case of Cutaneous Plasmablastic Lymphoma in HIV/AIDS with Disseminated Cryptococcus
Jun Gong,Serhan Alkan,Sidharth Anand
Case Reports in Oncological Medicine , 2013, DOI: 10.1155/2013/862585
Abstract: We present a case of a patient with HIV/AIDS who presented with a tender left lower extremity cutaneous mass over a site of previous cryptococcal infection and was found to have plasmablastic lymphoma (PBL). The incidence of PBL is estimated to account for less than 5% of all cases of non-Hodgkin lymphoma (NHL) in HIV-positive individuals. In fact, there were only two reports of extraoral PBL at the time of a 2003 review. PBL in HIV-positive individuals is an aggressive malignancy that tends to occur in middle-aged males with low CD4 counts, high viral loads, and chronic HIV infection. The definitive diagnosis can be made with biopsy which typically shows malignant lymphoid cells that stain positive for plasma cell markers and negative for B-cell markers. The most common treatment is chemotherapy with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) or CHOP-like regimens, but the overall survival rate is poor despite its relative responsiveness to chemotherapy. This case highlights the challenges that remain in improving clinical outcomes, the importance of antiretroviral therapy and HIV disease control, and a potential association between a chronic inflammatory state caused by disseminated Cryptococcus and tumorigenesis in individuals with PBL. 1. Introduction Kaposi’s sarcoma, non-Hodgkin lymphoma (NHL), and invasive cervical carcinoma are among the three AIDS-defining malignancies, and, of these, Kaposi’s sarcoma and AIDS-related non-Hodgkin lymphoma are the most common [1]. AIDS-related NHL can be categorized into systemic NHL, primary CNS lymphoma, and primary effusion lymphoma [2]. In HIV-infected individuals, systemic NHL is the most common and can be further divided into subtypes such as diffuse large B-cell lymphoma (DLBCL), Burkitt’s lymphoma, T-cell lymphoma, and plasmablastic lymphoma (PBL), to name a few [2]. Others have described plasmablastic lymphoma as a unique variant of DLBCL with a propensity to develop in HIV-positive patients with frequent involvement of the oral cavity [3–5]. At the time of a 2003 review, there were only 2 reports of extraoral plasmablastic lymphoma [4]. Of the NHL subtypes seen in HIV-positive individuals, the incidence of DLBCL is estimated to account for almost 50% of the cases while the incidence of plasmablastic lymphoma is estimated to account for less than 5% of the cases [3, 4]. The median age of presentation for PBL is 38 years with a greater predominance in males [5]. PBL also tends to occur in HIV-positive individuals with absolute CD4 counts less than 200?CMM, mean viral loads greater
IMM Filter Based Human Tracking Using a Distributed Wireless Sensor Network
Sen Zhang,Wendong Xiao,Jun Gong
Mathematical Problems in Engineering , 2014, DOI: 10.1155/2014/895971
Abstract: This paper proposes a human tracking approach in a distributed wireless sensor network. Most of the efforts on human tracking focus on vision techniques. However, most vision-based approaches to moving object detection involve intensive real-time computations. In this paper, we present an algorithm for human tracking using low-cost range wireless sensor nodes which can contribute lower computational burden based on a distributed computing system, while the centralized computing system often makes some information from sensors delay. Because the human target often moves with high maneuvering, the proposed algorithm applies the interacting multiple model (IMM) filter techniques and a novel sensor node selection scheme developed considering both the tracking accuracy and the energy cost which is based on the tacking results of IMM filter at each time step. This paper also proposed a novel sensor management scheme which can manage the sensor node effectively during the sensor node selection and the tracking process. Simulations results show that the proposed approach can achieve superior tracking accuracy compared to the most recent human motion tracking scheme. 1. Introduction In the daily life surveillance system, if the human actions can be tracked accurately, the results can help greatly and readily improve the ability of the identification of the whole system. Therefore, devices that can accurately track human motion in space are essential components of such a surveillance system. A complete model of human consists of both the movements and the shape of the body. Many of the available systems consider the two modeling processes as separate even if they are very close. In our study, the movement of the body is the target. There have been some approaches to the human motion tracking. Most of the human motion tracking systems are based on vision sensors. The camera-based human tracking system is much more popular nowadays. Some of the proposed approaches present systems that are capable of segmenting, detecting, and tracking people using multiple synchronized surveillance cameras located far from each other. But they try to hand off image-based tracking from camera to camera without recovering real-world coordinates [1–3]. Some other work has to deal with large video sequences involved when the image capture time interval is short [4, 5]. However, most vision-based approaches to moving human tracking are computationally intensive and costly expensive [6]. For example, they often involve intensive real-time computations such as image matching, background
Real-Time Traffic Signal Control for Modern Roundabouts by Using Particle Swarm Optimization-Based Fuzzy Controller
Yue-Jiao Gong,Jun Zhang
Computer Science , 2014,
Abstract: Due to that the existing traffic facilities can hardly be extended, developing traffic signal control methods is the most important way to improve the traffic efficiency of modern roundabouts. This paper proposes a novel traffic signal controller with two fuzzy layers for signalizing the roundabout. The outer layer of the controller computes urgency degrees of all the phase subsets and then activates the most urgent subset. This mechanism helps to instantly respond to the current traffic condition of the roundabout so as to improve real-timeness. The inner layer of the controller computes extension time of the current phase. If the extension value is larger than a threshold value, the current phase is maintained; otherwise the next phase in the running phase subset (selected by the outer layer) is activated. The inner layer adopts well-designed phase sequences, which helps to smooth the traffic flows and to avoid traffic jam. In general, the proposed traffic signal controller is capable of improving real-timeness as well as reducing traffic congestion. Moreover, an offline particle swarm optimization (PSO) algorithm is developed to optimize the membership functions adopted in the proposed controller. By using optimal membership functions, the performance of the controller can be further improved. Simulation results demonstrate that the proposed controller outperforms previous traffic signal controllers in terms of improving the traffic efficiency of modern roundabouts.
Proteome analysis of human gastric cardia adenocarcinoma by laser capture microdissection
Yan Cheng, Jun Zhang, Yang Li, Yan Wang, Jun Gong
BMC Cancer , 2007, DOI: 10.1186/1471-2407-7-191
Abstract: In this study, we used a comparative proteomic approach to analyse the malignant and nonmalignant gastric cardia epithelial cells isolated by navigated laser capture microdissection (LCM) from paired surgical specimens of human GCA.Twenty-seven spots corresponding to 23 proteins were consistently differentially regulated. Fifteen proteins were shown to be up-regulated, while eight proteins were shown to be down-regulated in malignant cells compared with nonmalignant columnar epithelial cells. The identified proteins appeared to be involved in metabolism, chaperone, antioxidation, signal transduction, apoptosis, cell proliferation, and differentiation. In addition, expressions of HSP27, 60, and Prx-2 in GCA specimens were further confirmed by immunohistochemical and western blot analyses.These data indicate that the combination of navigated LCM with 2-DE provides an effective strategy for discovering proteins that are differentially expressed in GCA. Such proteins may contribute in elucidating the molecular mechanisms of GCA carcinogenesis. Furthermore, the combination provides potential clinical biomarkers that aid in early detection and provide potential therapeutic targets.Various analyses of cancer incidence data culled from Western countries have revealed rapidly rising rates of adenocarcinoma of the esophagus and gastric cardia in the last few decades, compared with the stable and declining rates for esophageal squamous cell carcinoma (SCC) and distal gastric adenocarcinoma (DGA) [1-3]. This phenomenon is also apparent in China, except that the increasing incidence of gastric cardia adenocarcinoma (GCA) appears notably higher than the incidence of esophageal cancer. Evidence indicates that GCA is a distinct clinical entity as its pathogenesis and risk factors are quite different from DGA. Therefore, GCA is far more prevalent, with a higher incidence of lymph node metastasis and a poorer prognosis than DGA [4]. The annual incidence of GCA is 50/100,000 and may e
A Threshold Signature Scheme Based on TPM  [PDF]
Zhi-Hua Zhang, Si-Rong Zhang, Wen-Jin Yu, Jian-Jun Li, Bei Gong, Wei Jiang
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2011, DOI: 10.4236/ijcns.2011.410075
Abstract: For the traditional threshold signature mechanism does not considers whether the nodes which generate part signature are trusted and the traditional signature strategy doesn’t do well in resisting internal attacks and external attacks and collusion attacks, so this paper presents a new threshold signature based on Trusted Platform Module (TPM), based on TPM the signature node first should finish the trust proof between it an other members who take part in the signature. Using a no-trusted center and the threshold of the signature policy, this strategy can track active attacks of the key management center and can prevent framing the key management center, this strategy takes into account the limited computing power TPM and has parameters of simple, beneficial full using of the limited computing power TPM.
Prediction of Nodal Involvement in Primary Rectal Carcinoma without Invasion to Pelvic Structures: Accuracy of Preoperative CT, MR, and DWIBS Assessments Relative to Histopathologic Findings
Jun Zhou, Songhua Zhan, Qiong Zhu, Hangjun Gong, Yidong Wang, Desheng Fan, Zhigang Gong, Yanwen Huang
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0092779
Abstract: Objective To investigate the accuracy of preoperative computed tomography (CT), magnetic resonance (MR) imaging and diffusion-weighted imaging with background body signal suppression (DWIBS) in the prediction of nodal involvement in primary rectal carcinoma patients in the absence of tumor invasion into pelvic structures. Methods and Materials Fifty-two subjects with primary rectal cancer were preoperatively assessed by CT and MRI at 1.5 T with a phased-array coil. Preoperative lymph node staging with imaging modalities (CT, MRI, and DWIBS) were compared with the final histological findings. Results The accuracy of CT, MRI, and DWIBS were 57.7%, 63.5%, and 40.4%. The accuracy of DWIBS with higher sensitivity and negative predictive value for evaluating primary rectal cancer patients was lower than that of CT and MRI. Nodal staging agreement between imaging and pathology was fairly strong for CT and MRI (Kappa value = 0.331 and 0.348, P<0.01) but was relatively weaker for DWIBS (Kappa value = 0.174, P<0.05). The accuracy was 57.7% and 59.6%, respectively, for CT and MRI when the lymph node border information was used as the criteria, and was 57.7% and 61.5%, respectively, for enhanced CT and MRI when the lymph node enhancement pattern was used as the criteria. Conclusion MRI is more accurate than CT in predicting nodal involvement in primary rectal carcinoma patients in the absence of tumor invasion into pelvic structures. DWIBS has a great diagnostic value in differentiating small malignant from benign lymph nodes.
Consensus Formation Control for a Class of Networked Multiple Mobile Robot Systems
Long Sheng,Ya-Jun Pan,Xiang Gong
Journal of Control Science and Engineering , 2012, DOI: 10.1155/2012/150250
Abstract: A consensus-based formation control for a class of networked multiple mobile robots is investigated with a virtual leader approach. A novel distributed control algorithm is designed based on the Lyapunov method and linear matrix inequality (LMI) technique for time delay systems. A multiple Lyapunov Krasovskii functional candidate is proposed for investigating the sufficient conditions to linear control gain design for the system with constant time delays. Simulation results as well as experimental studies on Pioneer 3 series mobile robots are shown to verify the effectiveness of the proposed approach. 1. Introduction Embedded computational resources in autonomous robotic vehicles are becoming more abundant and have enabled improved operational effectiveness of cooperative robotic systems in civilian and military applications. Compared to autonomous robotic vehicles that operate single tasks, cooperative teamwork has greater efficiency and operational capability. Multirobotic vehicle systems have many potential applications, such as platooning of vehicles in urban transportation, the operation of the multiple robots, autonomous underwater vehicles, and formation of aircrafts in military affairs [1–3]. The study of group behaviors for multirobot systems is the main objective of the work. Group cooperative behavior signifies that individuals in the group share a common objective and action according to the interest of the whole group. Group cooperation can be efficient if individuals in the group coordinate their actions well. Each individual can coordinate with other individuals in the group to facilitate group cooperative behavior in two ways, named local coordination and global coordination. For the local coordination, individuals react only to other individuals that are close, such as fish engaged in a school. For the global coordination, each individual can directly coordinate its act with every other individual in the group. Due to communication constraints, most researchers are interested primarily in group cooperation problems where the coordination occurs locally [4–6]. Cooperative control of multirobotic vehicle systems brings us significant theoretical [7–9] and practical challenges. For example, the research objective is defined based on a system of some subsystems rather than a single system; the effects caused by the communication constraints should be considered and how to design coordination strategies so that coordination will result in a group cooperation [10, 11]. As a concrete example of cooperative control, the formation control of
Deoxycholic acid induces the overexpression of intestinal mucin, MUC2, via NF-kB signaling pathway in human esophageal adenocarcinoma cells
JianTao Wu, Jun Gong, Juan Geng, YinXue Song
BMC Cancer , 2008, DOI: 10.1186/1471-2407-8-333
Abstract: Human esophageal adenocarcinoma cells were treated 18 hours with 50–300 μM deoxycholic acid, chenodeoxycholic acid, or taurocholic acid. MUC2 transcription was assayed using a MUC2 promoter reporter luciferase construct and MUC2 protein was assayed by Western blot analysis. Transcription Nuclear factor-κB activity was measured using a Nuclear factor-κB reporter construct and confirmed by Western blot analysis for Nuclear factor-κB p65.MUC2 transcription and MUC2 protein expression were increased four to five fold by bile acids in a time and dose-dependent manner with no effect on cell viability. Nuclear factor-κB activity was also increased. Treatment with the putative chemopreventive agent aspirin, which decreased Nuclear factor-κB activity, also decreased MUC2 transcription. Nuclear factor-κB p65 siRNA decreased MUC2 transcription, confirming the significance of Nuclear factor-κB in MUC2 induction by deoxycholic acid. Calphostin C, a specific inhibitor of protein kinase C (PKC), greatly decreased bile acid induced MUC2 transcription and Nuclear factor-κB activity, whereas inhibitors of MAP kinase had no effect.Deoxycholic acid induced MUC2 overexpression in human esophageal adenocarcinoma cells by activation of Nuclear factor-κB transcription through a process involving PKC-dependent but not PKA, independent of activation of MAP kinase.Changes in the characteristics of the surface epithelial mucins is the hallmark of Barrett's metaplasia, dysplasia and adenocarcinoma of esophagus[1,2]. MUC2, a high molecular weight glycoprotein, is the major secreted mucin in the large and small intestine[3,4]. Human esophageal adenocarcinoma and cell lines derived from tumors can differ significantly in the amount of MUC2 mucin synthesized and these differences correlate with altered biochemical and biologic properties including those with relevance to invasion and metastasis, MUC2 is expressed in esophageal carcinoma cell lines, and patients with esophageal carcinomas characteri
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