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Prevalence of Toxoplasma gondii in Dogs in Zhanjiang, Southern China
Hai-Hai Jiang,Ming-Wei Li,Min-Jun Xu,Wei Cong,Xing-Quan Zhu 대한기생충학열대의학회 2015 The Korean Journal of Parasitology Vol.53 No.4
Toxoplasmosis, caused by Toxoplasma gondii, is a parasitic zoonosis with worldwide distribution. The present study investigated the prevalence of T. gondii in dogs in Zhanjiang city, southern China, using both serological and molecular detection. A total of 364 serum samples and 432 liver tissue samples were collected from the slaughter house between December 2012 and January 2013 and were examined for T. gondii IgG antibody by ELISA and T. gondii DNA by semi-nested PCR based on B1 gene, respectively. The overall seroprevalence of T. gondii IgG antibody was 51.9%, and T. gondii DNA was detected in 37 of 432 (8.6%) liver tissue samples. These positive DNA samples were analyzed by PCRRFLP at 3- and 5-SAG2. Only 8 samples gave the PCR-RFLP data, and they were all classified as type I, which may suggest that the T. gondii isolates from dogs in Zhanjiang city may represent type I or type I variant. This study revealed the high prevalence of T. gondii infection in dogs in Zhanjiang city, southern China. Integrated measures should be taken to prevent and control toxoplasmosis in dogs in this area for public health concern.
Jiang, Hai,Yao, Jianguo,Zhang, Guanyuan The Korean Institute of Electrical Engineers 2011 The Journal of International Council on Electrical Vol.1 No.4
With regard to distant communication of Subscriber Power Consumption Information Acquisition Systems (SPCIAS), this paper analyzes some distant communication technologies such as private optical fiber network, wireless private network, wireless public network and etc. The rules for choosing the type of communication technologies are also given in various application areas. In the meanwhile, considering that the SPCIASs must adopt various types of distant communication technologies,this paper presents "the Communication Integrated Platform for the SPCIASs"(CIP).
Ramp-Strike Risk Evaluation Making of Carrier-Based Aircraft
Hai-tao Jiang,Xiao-dong Su,Hui Li 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.10
To make “Ramp-Strike Risk” evaluation making accurately, this paper introduces a new wave-off risk assessment method based on neural network of carrier-based aircraft. On account of defining “Wave-Off Retain Clearance”, the wave-off operation system with military power and vertical elevator is established as evaluation medium. The “Wave-Off Risk State Area” established by limited wave-off envelope can reduce network training burden, and the quantitative “Ramp-Strike Risk” function with flight state is presented through BP neural network finally. Simulation results show that the risk with flight states can be predicted by using new estimation method, moreover auxiliary rectification and early-warning for landing is provided.
Hai-jiang Hu,Guang Xu,Ming-xing Zhou,Qing Yuan 대한금속·재료학회 2017 METALS AND MATERIALS International Vol.23 No.2
The varying trends of the amount and rate of bainitic transformation with strains at low temperature were investigated through metallography, X-ray diffraction and dilatometry. The results show that deformation at 573 K promotes bainitic transformation, whereas the promotion degree on bainite transformation by ausforming is nonlinear with strains. The amount of bainite in deformed austenite first increases and then decreases with the increase of strains. There exists a maximum value of the promotion effect corresponding to a critical small strain at a low temperature. Bainitic transformation rate can be increased by ausforming at low temperature, whereas a large strain weakens the acceleration effect. The amount of bainite in deformed materials is synthetically depended on the effect of enhanced nucleation and repressed growth. In addition, the volume fraction of retained austenite is not completely consistent with carbon content, indicating that ausforming plays a important role in determining the amount of austenite.
Efficient Large-scale Content Distribution with Combination of CDN and P2P Networks
Hai Jiang,Xiangyu Bai,Jun Li,Zhongcheng Li 보안공학연구지원센터 2009 International Journal of Hybrid Information Techno Vol.2 No.2
With the growth of the Internet over the last decade, a key challenge for Internet infrastructure has been delivering increasingly large-scale content to a growing user population. CDN and P2P are two dominant technologies to improve distribution effectiveness. CDN may reduce the user-perceived latency, but it has shortage of expensive deployment. P2P can decrease the deployment cost, while it is of weakness to assure QoS when there are insufficient peers. In this paper, we present a hybrid content distribution network (HCDN) integrating complementary advantages of CDN and P2P, which is used to improve efficiency of large-scale content distribution. To achieve in-depth understanding of HCDN’s effectiveness, we carry out a detailed performance evaluation based on deterministic fluid model. We also provide numeric results of HCDN, conventional CDN and pure P2P. Some performance metrics are taken into account in our analysis, such as the evolution of the number of seeds and downloaders, the service capacity of system and the average downloading time.
( Jiang Li Juan ),( Wen Juan Wu ),( Hai Wu ),( Son Sik Ryang ),( Jian Zhou ),( Wei Wu ),( Tao Li ),( Jian Guo ),( Hong Hai Wang ),( Shui Hua Lu ),( Yao Li ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.9
We combined real-time RT-PCR and real-time PCR (R/P) assays using a hydrolysis probe to detect Mycobacterium tuberculosis complex (MTBC)-specific 16S rRNA and its rRNA gene (rDNA). The assay was applied to 28 nonrespiratory and 207 respiratory specimens from 218 patients. Total nucleic acids (including RNA and DNA) were extracted from samples, and results were considered positive if the repeat RT-PCR threshold cycle was ≤35 and the ratio of real-time RT-PCR and real-time PCR load was ≥1.51. The results were compared with those from existing methods, including smear, culture, and real-time PCR. Following resolution of the discrepant results between R/P assay and culture, the overall sensitivity, specificity, positive predictive values (PPV), and negative predictive values (NPV) of all samples (including nonrespiratory and respiratory specimens) were 98.2%, 97.2%, 91.7%, and 99.4%, respectively, for R/P assay, and 83.9%, 89.9%, 72.3%, and 94.7%, respectively, for real-time PCR. Furthermore, the R/P assay of four patient samples showed a higher ratio before treatment than after several days of treatment. We conclude that the R/P assay is a rapid and accurate method for direct detection of MTBC, which can distinguish viable and nonviable MTBC, and thus may guide patient therapy and public health decisions.
Jiang, Ai-Ren,Gao, Chang-Ming,Ding, Jian-Hua,Li, Su-Ping,Liu, Yan-Ting,Cao, Hai-Xia,Wu, Jian-Zhong,Tang, Jin-Hai,Qian, Yun,Tajima, Kazuo Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.1
To evaluate the relationship between abortions and risk of breast cancer, we conducted a case-control study with 669 cases and 682 population-based controls in Jiangsu Province of China. A structured questionnaire was used to elicit detailed information. Unconditional logistic regression analysis was performed to calculate odds ratios (ORs) and 95% confidence intervals (CIs). The results have revealed that induced abortion was related to increased risk of breast caner. Premenopausal women who had ${\geq}3$ times of induced abortion were at increased crude OR (2.41, 95%CI: 1.09-5.42) and adjusted-OR (1.55, 95%CI: 1.15-5.68). Postmenopausal women with a previous induced abortion were at increased crude OR (2.04, 95%CI: 1.48-2.81) and adjusted-OR (1.82, 95%CI: 1.30-2.54), and there was a significant increase trend in OR with number of induced abortions (p for trend: 0.0001). Overall, spontaneous abortion did not significantly alter the risk of breast cancer, but postmenopausal women who had history of spontaneous abortion were at increased OR. These results suggested that relationship between breast cancer and abortions may depend on menopausal status and induced abortion may played an important role in the development of breast cancer in Jiangsu' women of China.