• Title/Summary/Keyword: Xinjiang

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MALICIOUS URL RECOGNITION AND DETECTION USING ATTENTION-BASED CNN-LSTM

  • Peng, Yongfang;Tian, Shengwei;Yu, Long;Lv, Yalong;Wang, Ruijin
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.11
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    • pp.5580-5593
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    • 2019
  • A malicious Uniform Resource Locator (URL) recognition and detection method based on the combination of Attention mechanism with Convolutional Neural Network and Long Short-Term Memory Network (Attention-Based CNN-LSTM), is proposed. Firstly, the WHOIS check method is used to extract and filter features, including the URL texture information, the URL string statistical information of attributes and the WHOIS information, and the features are subsequently encoded and pre-processed followed by inputting them to the constructed Convolutional Neural Network (CNN) convolution layer to extract local features. Secondly, in accordance with the weights from the Attention mechanism, the generated local features are input into the Long-Short Term Memory (LSTM) model, and subsequently pooled to calculate the global features of the URLs. Finally, the URLs are detected and classified by the SoftMax function using global features. The results demonstrate that compared with the existing methods, the Attention-based CNN-LSTM mechanism has higher accuracy for malicious URL detection.

Molecular Identification of Bartonella melophagi and Wolbachia Supergroup F from Sheep Keds in Xinjiang, China

  • Liu, Yonghong;He, Bo;Li, Fei;Li, Kairui;Zhang, Luyao;Li, Xianqiang;Zhao, Li
    • Parasites, Hosts and Diseases
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    • v.56 no.4
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    • pp.365-370
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    • 2018
  • To confirm that Bartonella and Wolbachia were carried by sheep keds (Melophagus ovinus) in southern Xinjiang of China, 17 M. ovinus samples, which were collected in Aksu Prefecture, Xinjiang, were randomly selected. In this study, the Bartonella gltA and Wolbachia 16S rRNA gene were amplified through conventional PCR and the sequence of those amplified products, were analyzed. The results demonstrated that Bartonella was carried by all of the 17 sheep keds and Wolbachia was carried by 15 out of them. Bartonella was identified as B. melophagi. Three strains of Wolbachia were supergroup F and 1 strain has not been confirmed yet. It is the first report about Wolbachia supergroup F was found in sheep keds and provided the molecular evidence that B. melophagi and Wolbachia supergroup F were carried by sheep keds in Aksu Prefecture of southern Xinjiang, China. The 2 pathogens were found in sheep keds around Taklimakan Desert for the first time.

Properties, Structure and Crystallization of Poly Lactic Acid/Zinc Oxide Pillared Organic Saponite Nanocomposites (폴리락틱산/산화아연 기둥구조의 유기사포나이트 나노복합체의 특성, 구조 및 결정화)

  • Zhen, Weijun;Sun, Jinlu
    • Polymer(Korea)
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    • v.38 no.3
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    • pp.299-306
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    • 2014
  • ZnO pillared saponite was synthesized via a microwave hydrolysis method. To enhance interfacial compatibility between zinc oxide (ZnO) pillared saponite and poly lactic acid (PLA), ZnO pillared organic saponite was prepared by intercalation modification of cetyltrimethylammonium bromide. Moreover, PLA/ZnO pillared organic saponite nanocomposites were prepared by melting processing. The microstructure analysis of PLA/ZnO pillared organic saponite nanocomposites showed that ZnO pillared organic saponite was exfoliated and homogeneouslydispersed in PLA matrix. The property results showed that ZnO pillared organic saponite improved the mechanical properties and thermal stabilities of PLA/ZnO pillared organic saponite nanocomposites. Differential scanning calorimetry (DSC) demonstrated that ZnO pillared organic saponite restrained the appearance of cold crystallization, lowered the glass transition temperature and melting temperature of PLA, and improved the crystallinity of PLA. The results demonstrated that ZnO pillared organic saponite had a good interfacial compatibility and heterogeneous nucleation effect in PLA matrix, and also played an active role in accelerating the crystallization process of PLA.

Experimental and analytical study of a new seismic isolation device under a column

  • Benshuai Liang;Guangtai Zhang;Mingyang Wang;Jinpeng Zhang;Jianhu Wang
    • Earthquakes and Structures
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    • v.24 no.6
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    • pp.415-428
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    • 2023
  • Low-cost techniques with seismic isolation performance and excellent resilience need to be explored in the case of rural low-rise buildings because of the limited buying power of rural residents. As an inexpensive and eco-friendly isolation bearing, scrap tire pads (STPs) have the issue of poor resilience. Thus, a seismic isolation system under a column (SISC) integrated with STP needs to be designed for the seismic protection of low-rise rural buildings. The SISC, which is based on a simple exterior design, maintains excellent seismic performance, while the mechanical behavior of the internal STP provides elastic resilience. The horizontal behaviors of the SISC are studied through load tests, and its mechanical properties and the intrinsic mechanism of the reset ability are discussed. Results indicate that the average residual displacement ratio was 24.59%, and the reset capability was enhanced. Comparative experimental and finite element analysis results also show that the load-displacement relationship of the SISC was essentially consistent. The dynamic characteristics of isolated and fixed-base buildings were compared by numerical assessment of the response control effects, and the SISC was found to have great seismic isolation performance. SISC can be used as a low-cost base isolation device for rural buildings in developing countries.

Characteristics of the traditional Atlas fabrics of the Xinjiang Uygur Minority Ethnic Group, China (중국 신장 위구르족 전통 아틀라스(Atlas) 직물의 특성)

  • Wang, Lifeng;Lee, Younhee
    • The Research Journal of the Costume Culture
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    • v.28 no.2
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    • pp.199-214
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    • 2020
  • The study investigates Atlas fabrics, the Ikat weaving method used by the Uygur People in Xinjiang, China. Based on domestic and foreign papers and other literature, different cultural characteristics of Ikat fabrics from various regions are compared. Following a theoretical investigation, characteristics of fabrics from the Indian Patola, Indonesian Ikat, Japanese Kasuri, and Uzbekistan Adras are summarized and compared with the characteristics of pattern, color, and manufacturing process of Atlas silk from Xinjiang China (also an Ikat fabric). The results are as follows. First, although the weaving process used for Ikat fabrics differs from country to country according to different national cultures, lifestyles, colors, patterns, and usage methods, they are all Ikat dyed fabrics. Therefore, they are all regarded as precious objects symbolizing a certain social status, and are used as a gift for special occasions, such as weddings. Second, the form of the pattern varies. Indian Patola has clear outlines and regular patterns, while the patterns of Japanese Kasuri are mainly inspired by folk life ideas. Indonesian Ikat contains influences from indigenous tribes, and Uzbekistan's and China's Atlas textiles are influenced by geography, religion, and national culture, including bright colors and pattern designs inspired by plants, musical instruments, and geometric figures. Finally, the patterns and colors of Xinjiang Atlas fabrics present strong ethnic characteristics. Unlike the Uzbekistan fabric which is mostly influenced by Islam, human and animal patterns would not feature in Xinjiang Atlas patterns, which mostly consist of long strips, repeated in a neat and orderly form.

Roles of MiR-101 and its Target Gene Cox-2 in Early Diagnosis of Cervical Cancer in Uygur Women

  • Lin, Chen;Huang, Fei;Zhang, Ya-Jing;Tuokan, Talafu;Kuerban, Gulinaer
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.1
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    • pp.45-48
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    • 2014
  • Aims: Early diagnosis is important for cervical cancer treatment. This study aimed to characteriz the microRNA profile and target gene protein levels of cervical cancers in Uygur women for application in early diagnosis. Methods: The profiles of miRNA in cervical cancer and chronic cervicitis were analyzed with miRNAmicroarray V4.0. The expression of miR-101 was detected by real-time PCR and locked nucleotide acid in situ hybridization (LNA-ISH). Cox-2 protein levels were assessed by immunohistochemistry. Results: The microarray identified a set of 12 miRNAs significantly decreased in cervical cancer in comparison to the control group. Quantitative RT-PCR analysis showed miR-101 to be significantly downregulated in cancer tissues (p<0.05) while LNA-ISH showed miR-101 positive rates of 80% (20/25) and 8% (5/25) (p<0.05) in the control and cervical cancer groups. Cox-2 positive rates of cervical cancer and control groups were 84% (21/25) and 8% (2/25) (p<0.05). Conclusions: Use of down-regulation of miR-101 and up-regulation of Cox-2 as markers may play a role in early diagnosis of cervical cancer in Uygur women.

Epigenetic Regulation of Human Riboflavin Transporter 2(hRFT2) in Cervical Cancers from Uighur Women

  • Ma, Jun-Qi;Kurban, Shajidai;Zhao, Jun-Da;Li, Qiao-Zhi;Hasimu, Ayshamgul
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.6
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    • pp.2485-2489
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    • 2014
  • In the present study, we studied the hypermethylation of the human riboflavin transporter 2 (hRFT2) gene and regulation of protein expression in biopsies from resected tissues from Uighur cervical squamous cell carcinoma (CSCC) patients and their neighboring normal tissues. hRFT2 gene promoter region methylation sequences were mapped in cervical cancer cell line SiHa by bisulfite-sequencing PCR and quantitative detection of methylated DNA from 30 pairs of Uighur's CSCCs and adjacent normal tissues by MassARRAY (Sequenom, San Diego, CA, USA) and hRFT2 protein expression was analyzed by immunohistochemistry. In SiHa, we identified 2 CG sites methylated from all of 12CpG sites of the hRFT2 gene. Analysis of the data from quantitative analysis of single CpG site methylation by Sequenom MassARRAY platform showed that the methylation level between two CpG sites (CpG 2 and CpG 3) from CpG 1~12 showed significant differences between CSCC and neighboring normal tissues. However, the methylation level of whole target CpG fragments demonstrated no significant variation between CSCC ($0.476{\pm}0.020$) and neighboring normal tissues ($0.401{\pm}0.019$, p>0.05). There was a tendency for translocation the hRFT2 proteins from cytoplasm/membrane to nucleus in CSCC with increase in methylation of CpG 2 and CpG 3 in hRFT2gene promoter regions, which may relate to the genesis of CSCC. Our results suggested that epigenetic modifications are responsible for aberrant expression of the hRFT2 gene, and may help to understand mechanisms of cervical carcinogenesis.

Genetic Polymorphisms of TCF7L2 Lack Influence on Risk of the Polycystic Ovary Syndrome - a Systemic Analysis

  • Lin, Lin;Yang, Jing;Ding, Yan;Wang, Jing;Ting, Liu
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.7
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    • pp.3331-3333
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    • 2014
  • Background: The results of previous researches that analyzed the association between genetic polymorphisms of transcription factor-7-like 2 (TCF7L2, rs7903146) and polycystic ovary syndrome (PCOS) were conflicting. Current systematic analysis was conducted to re-explore this association using updated materials. Materials and Methods: The PubMed database was used for data collection and the final search was conducted on January 3, 2014. For TCF7L2 rs7903146, a non-signficiant slight increase in risk of PCOS development was observed under three genetic models (dominant model: OR=1.06, 95%CI: 0.93-1.21, p>0.05; recessive model: OR=1.12, 95%CI: 0.87-1.43, p> 0.05; homozygous model: OR=1.14, 95%CI: 0.87-1.47, p>0.05). In the subgroup analyses in Asian group, allele susceptibility of PCOS was calculated (allele model: OR=1.00, 95%CI: 0.74-1.35, p>0.05; dominant model: OR=0.98, 95%CI: 0.71-1.35, p>0.05; recessive model: OR=1.79, 95%CI: 0.33-9.84, p>0.05; homozygous model: OR=1.78, 95%CI: 0.32-9.80, p>0.05), the differences were again not statistically significant. Conclusions: The findings of this systemic analysis suggest that the polymorphism of TCF7L2 rs7903146 may not be associated with the susceptibility to PCOS.

Effect of hanging-type sand fence on characteristics of wind-sand flow fields

  • Cheng, Jian-jun;Lei, Jia-qiang;Li, Sheng-yu;Wang, Hai-feng
    • Wind and Structures
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    • v.22 no.5
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    • pp.555-571
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    • 2016
  • A hanging-type sand-retaining wall is a very common sand-blocking fence structure used to prevent sand movement. This type of wall is widely used along the Qinghai-Tibet and Gobi desert railways in Xinjiang, Western China. To analyze the characteristics of wind-sand flow fields under the effect of such a sand fence structure, a wind tunnel test and a field test were carried out. The wind tunnel test showed the zoning characteristics of the flow fields under the effect of the hanging-type sand-retaining wall, and the field test provided the sediment transport data for effective wind-proof interval and the sand resistance data in the front and behind the sand-retaining wall. The consistency of the wind-sand flow fields with the spatial distribution characteristic of wind-carried sand motion was verified by the correspondences of the acceleration zone in the flow field and the negative elevation points of the percentage variations of the sand collection rate. The spatial distribution characteristic of the field sand collection data further showed the spatial structural characteristic of the sandy air currents under the action of the hanging-type sand-retaining wall and the sand resistance characteristic of the sand-retaining wall. This systematic study on the wind-sand flow fields under the control of the hanging-type sand-retaining wall provides a theoretical basis for the rational layout of sand control engineering systems and the efficient utilization of a hanging-type sand-retaining wall.

Effect of dietary cotton stalk on nitrogen and free gossypol metabolism in sheep

  • Rehemujiang, Halidai;Yimamu, Aibibula;Wang, Yong Li
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.2
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    • pp.233-240
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    • 2019
  • Objective: This study was to investigate the effects of dietary cotton stalk on nitrogen and free gossypol in sheep. Methods: Treatments included 25% cotton stalk (Treat 1), 50% cotton stalk (Treat 2), and a control (no cotton stalk). Six Xinjiang daolang wethers were cannulated at the rumen and duodenum and fed one of these diets. The effects of these diets on nitrogen and free gossypol absorption and metabolism were determined. Fifteen healthy Xinjiang daolang wethers were assessed for daily gain, tissue lesions, and free gossypol accumulation. Results: Dry matter intake decreased with increasing dietary cotton stalk. Total tract dry matter digestibility did not significantly differ among treatments. Dietary cotton stalk significantly decreased volatile fatty acids and increased ammonium nitrogen in the rumen. Nitrogen intake was significantly higher in Treat 2 than in the control or Treat 1. Nitrogen retention and free gossypol intake increased with dietary cotton stalk. Duodenal free gossypol flow did not increase, and free gossypol almost disappeared from the rumen. The free gossypol content of plasma and tissue was increased with dietary cotton stalk with liver free gossypol>muscle free gossypol>kidney free gossypol. Elevated dietary free gossypol decreased platelets, hemoglobin, and serum iron. Aspartate aminotransferase and ${\gamma}$-glutamyltransferase increased in Treat 2. With high long-term dietary cotton stalk intake, liver cells were swollen, and their nuclei dissolved. Renal cells were necrotic and the interstitia were enlarged. Conclusion: With short-term cotton stalk administration, only a small amount of free gossypol is retained in the body. In response to long-term or high free gossypol cotton stalk feeding, however, free gossypol accumulates in, and damages the liver and kidneys.