Tracking the movement trajectory of newly emerged adult Chinese citrus flies with insect harmonic radar

Zhang-Zhang He,Jie Luo,Lian-You Gui,Deng-Ke Hua,Tian-Hua Du,Fu-Lian Wang,Peng Liang,Yong-Fang Shi,Xuan Yang 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3

Previous work reveals that the adult Chinese citrus fly, Bactrocera minax (Enderlein), emerges from the ground in citrus orchards and presumably disperses to alternate food sources in neighboring shrubs and trees, where it stays and becomes reproductively mature, and then later returns to the orchard to lay eggs. We investigated the trajectories of early emerged adult Chinese citrus flies, which were tracked with portable harmonic radar in 2013, 2014, 2015, and 2016 in four different habitats in Hubei province of China that presumably provided food sources for adults. This study we investigated whether early emerged adult Chinese citrus flies migrate into forests. A total of 47 adults were tracked following release in a citrus orchard. Our results showed that a total of 33 adults released in a citrus orchard flew into the forest, and 14 adults that disappeared during the tracking process in the citrus orchard. A total of 10 adults (in 2014) that were tracked and released in the forest flew to the forest. Of the adult flies investigated, 54.5% flew directly into the forest, while the remaining 45.5% finally arrived in the forest after repeatedly adjusting their trajectories. When there were Castanea mollissima Blume (Fagaceae) in the surrounding forest, the proportion of frequency of adult landing on the plant represented 58.3% and 88.5% of landing on all species in 2014 and in 2015, respectively. We conclude that early emerged adult Chinese citrus flies in the mosaic-type citrus orchard of the hilly terrain landform dispersed into adjacent forest.

The Breed and Sex Effect on the Carcass Size Performance and Meat Quality of Yak in Different Muscles

Zhang, Li,Sun, Baozhong,Yu, Qunli,Ji, Qiumei,Xie, Peng,Li, Haipeng,Wang, Li,Zhou, Yuchun,Li, Yongpeng,Huang, Caixia,Liu, Xuan Korean Society for Food Science of Animal Resource 2016 한국축산식품학회지 Vol.36 No.2

The carcass size performances and the meat quality of Gannan and Sibu yak were determined using M. supraspinatus (SU), M. longissimus thoracis (LT) and M.quadriceps femoris (QF). It is found that Sibu yak had significantly higher carcass weight (CW) than Gannan yak with difference of nearly 40 kg, as well as significantly higher eye muscle area (EMA), carcass thorax depth (CTD), round perimeter (RP), etc. The carcass performances of steer yak were significantly higher than heifer yak except meat thickness at round (MTR) (p<0.05). The results show that both yak breed and gender had significant effects on carcass performances. It could be seen that the variation of carcass size performances from breeds is as large as from gender (50.22% and 46.25% of total variation, respectively) through principal component analysis (PCA). Sibu yak had significantly higher L*, b*, WBSF, cooking loss and Fat content, while Gannan yak had significantly higher a*, press loss, protein content and moisture (p<0.05). Yak gender and muscle had insignificant effects on meat colour and water holding capacity (p>0.05). The variation of meat quality of yak from breed is up to 59.46% of total variation according to PCA. It is shown that the difference between breeds, for Gannan yak and Sibu yak, plays an important role in carcass size performance and meat quality.

SPON2 Promotes M1-like Macrophage Recruitment and Inhibits Hepatocellular Carcinoma Metastasis by Distinct Integrin–Rho GTPase–Hippo Pathways

Zhang, Yan-Li,Li, Qing,Yang, Xiao-Mei,Fang, Fang,Li, Jun,Wang, Ya-Hui,Yang, Qin,Zhu, Lei,Nie, Hui-Zhen,Zhang, Xue-Li,Feng, Ming-Xuan,Jiang, Shu-Heng,Tian, Guang-Ang,Hu, Li-Peng,Lee, Ho-Young,Lee, Su-J American Association for Cancer Research 2018 Cancer research Vol.78 No.9

<P>Matricellular protein SPON2 acts as an HCC suppressor and utilizes distinct signaling events to perform dual functions in HCC microenvironment.</P><P>Tumor-associated macrophages (TAM) represent key regulators of the complex interplay between cancer and the immune microenvironment. Matricellular protein SPON2 is essential for recruiting lymphocytes and initiating immune responses. Recent studies have shown that SPON2 has complicated roles in cell migration and tumor progression. Here we report that, in the tumor microenvironment of hepatocellular carcinoma (HCC), SPON2 not only promotes infiltration of M1-like macrophages but also inhibits tumor metastasis. SPON2-α4β1 integrin signaling activated RhoA and Rac1, increased F-actin reorganization, and promoted M1-like macrophage recruitment. F-Actin accumulation also activated the Hippo pathway by suppressing LATS1 phosphorylation, promoting YAP nuclear translocation, and initiating downstream gene expression. However, SPON2-α5β1 integrin signaling inactivated RhoA and prevented F-actin assembly, thereby inhibiting HCC cell migration; the Hippo pathway was not noticeably involved in SPON2-mediated HCC cell migration. In HCC patients, SPON2 levels correlated positively with prognosis. Overall, our findings provide evidence that SPON2 is a critical factor in mediating the immune response against tumor cell growth and migration in HCC.</P><P><B>Significance:</B> Matricellular protein SPON2 acts as an HCC suppressor and utilizes distinct signaling events to perform dual functions in HCC microenvironment.</P><P><B>Graphical Abstract:</B> http://cancerres.aacrjournals.org/content/canres/78/9/2305/F1.large.jpg. <I>Cancer Res; 78(9); 2305–17. ©2018 AACR</I>.</P><P><B>Graphical Abstract</B></P><P> [Figure]</P>

Synergistic effect of micro-textures and MoS2 on the tribological properties of PTFE film against GCr15 bearing steel

Xuan Xie,Xijun Hua,Jianhua Li,Xiaobin Cao,Zhixiang Tian,Rui Peng,Bifeng Yin,Peiyun Zhang 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.5

To enhance the friction and wear resistance of GCr15/PTFE sliding contact surfaces, the synergistic lubrication effect of micro-textures and solid lubricants were studied in this paper. Micro-textures were processed on GCr15 samples by Nd:YAG laser, which were filled with MoS 2 . Tribological performance tests were carried out on a Rtec-MFT 5000 tester. Tribological properties were optimal with the textures density of 20 % and depth of 9 μm. A continuous composite solid lubricating film was formed by PTFE and MoS 2 . As load increases, friction coefficient of the sample shows a rapid decline and then stabilizes. With the increase of reciprocating frequency, friction curve of the sample shows a trend of slight fluctuation. When frequency is 2.7 Hz, friction coefficient is the lowest. Tribological properties of PTFE/GCr15 contact surfaces could be significantly optimized by micro-textures and MoS 2 , which performs favorable prospect of engineering application such as guide rails, bearings, machinery seal, etc.

Preparation and characterizations of charged PVDF membranes via composite thermally induced phase separation (C-TIPS) method

Hai-Peng Xu,Wan-Zhong Lang,Xuan Zhang,Ya-Jun Guo 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1

The charged poly(vinylidene fluoride) (PVDF) membranes were prepared by composite thermallyinduced phase separation (C-TIPS) method with perfluorosulfonic acid (PFSA) as additive. The resultsverify that the porosity, surface hydrophilicity and pure water permeation flux (JW) increase with theaddition of PFSA for the membranes. The highest JW of 507.2 1.2 L/(M2 H bar) is obtained for themembrane cast at 90 8C. Much higher casting temperature isn’t advantageous to improve JW value for thePVDF membranes. All membranes exhibit negative apparent zeta potential (zapp). The crystallinity in b phaseincreases as casting temperature increases for all PVDF membranes.

Optimal simulation design for weight reduction of periodic titanium alloy space structures

Liang Xuan,Yanhe Zhang,Siyuan Peng,Yongkang Shen 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.2

This research investigates the spatial structure of periodic titanium alloys. The response surface optimization method is used to optimize the weight reduction structure of combined model parameters. Under the condition of unidirectional load, the stress and strain results of each model group of a 3D structure with weight reduction rates of 30 %, 50 %, and 70 % are obtained through simulation analysis. Furthermore, the characteristics of the selective laser melting (SLM) forming process are incorporated, and a comparative analysis of the maximum equivalent stress of each group of models under unidirectional load is performed. The optimal structural form and its parameters suitable for multi-directional loads are screened. By using SLM to form the optimal model and carry out a loading test, the ultimate load of the model under different weight reduction rates is obtained to provide a theoretical basis for the next step of 3D printing process research.

Molecular Characterization of Enterocytozoon bieneusi in Domestic Rabbits (Oryctolagus cuniculus) in Northeastern China

Xiao-Xuan Zhang,Jing Jiang,Ya-Nan Cai,Chun-Feng Wang,Peng Xu,Gui-Lian Yang,Quan Zhao 대한기생충학열대의학회 2016 The Korean Journal of Parasitology Vol.54 No.1

A study of 426 rabbits from 3 cities in Jilin province (Changchun City and Jilin City) and Liaoning province (Shenyang City) was conducted between May and June 2015. The overall prevalence of E. bieneusi in rabbits was 0.94% (4/426), with 0% (0/116), 1.72% (3/174), and 0.74% (1/136) in Jilin, Changchun, and Shenyang City, respectively. Only 3 farms (farm 1 and farm 3 in Changchun City, farm 8 in Shenyang City) were PCR-positive for E. bieneusi. Moreover, rabbits of more than 6 months (1.72%) had the highest E. bieneusi prevalence, followed by rabbits of 4-6 months (1.26%), 2-3 months (0.58%), and less than 1 month (0%). Analysis of ITS gene of E. bieneusi suggested that all 4 E. bieneusi isolates were genotype D, and were classified as group 1a. The present results first demonstrated the existence of zoonotic E. bieneusi in domestic rabbits in China. Effective control measures should be implemented to prevent E. bieneusi infection in domestic rabbits, other animals, and humans.

The Breed and Sex Effect on the Carcass Size Performance and Meat Quality of Yak in Different Muscles

Li Zhang,Baozhong Sun,Qun-li Yu,Qiumei Ji,Peng Xie,Haipeng Li,Li Wang,Yuchun Zhou,Yongpeng Li,Caixia Huang,Xuan Liu 한국축산식품학회 2016 한국축산식품학회지 Vol.36 No.2

The carcass size performances and the meat quality of Gannan and Sibu yak were determined using M. supraspinatus (SU), M. longissimus thoracis (LT) and M.quadriceps femoris (QF). It is found that Sibu yak had significantly higher carcass weight (CW) than Gannan yak with difference of nearly 40 kg, as well as significantly higher eye muscle area (EMA), carcass thorax depth (CTD), round perimeter (RP), etc. The carcass performances of steer yak were significantly higher than heifer yak except meat thickness at round (MTR) (p<0.05). The results show that both yak breed and gender had significant effects on carcass performances. It could be seen that the variation of carcass size performances from breeds is as large as from gender (50.22% and 46.25% of total variation, respectively) through principal component analysis (PCA). Sibu yak had significantly higher L*, b*, WBSF, cooking loss and Fat content, while Gannan yak had significantly higher a*, press loss, protein content and moisture (p<0.05). Yak gender and muscle had insignificant effects on meat colour and water holding capacity (p>0.05). The variation of meat quality of yak from breed is up to 59.46% of total variation according to PCA. It is shown that the difference between breeds, for Gannan yak and Sibu yak, plays an important role in carcass size performance and meat quality.

Validity and Necessity of Sub-classification of N3 in the 7^th UICC TNM Stage of Gastric Cancer

Li, Fang-Xuan,Zhang, Ru-Peng,Liang, Han,Quan, Ji-Chuan,Liu, Hui,Zhang, Hui Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.3

Background: The $7^{th}$ TNM staging is the first authoritative standard for evaluation of effectiveness of treatment of gastric cancer worldwide. However, revision of pN classification within TNM needs to be discussed. In particular, the N3 sub-stage is becoming more conspicuous. Methods: Clinical data of 302 pN3M0 stage gastric cancer patients who received radical gastrectomy in Tianjin Medical University Cancer Institute and Hospital from January 2001 to May 2006 were retrospectively analyzed. Results: Location of tumor, depth of invasion, extranodal metastasis, gastric resection, combined organs resection, lymph node metastasis, rate of lymph node metastasis, negative lymph nodes count were important prognostic factors of pN3M0 stage gastric cancers. TNM stage was also associated with prognosis. Patients at T2N3M0 stage had a better prognosis than other sub-classification. T3N3M0 and T4aN3aM0 patients had equal prognosis which followed the T2N3M0. T4aN3bM0 and T4bN3aM0 had lower survival rate than the formers. T4bN3bM0 had worst prognosis. In multivariate analysis, TNM stage group and rate of lymph node metastasis were independent prognostic factors. Conclusions: The sub-stage of N3 may be useful for more accurate prediction of prognosis; it should therefore be applied in the TNM stage system.

Application of Color Scheme in Mechanical Products

Gu Kun peng,Zhang Sheng xuan 한국디자인학회 2008 한국디자인학회 학술발표대회 논문집 Vol.- No.-