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An On-Demand Routing Algorithm for Mobile Wireless Networks
Yan, Huai-Zhi,Ajith P.K,Park, Dong-Won,Joo, Gi-Ho 배재대학교 공학연구소 2005 공학논문집 Vol.7 No.1
An ad hoc network is a collection of wireless mobile nodes forming a temporary network without the centralized administration. Due to the limited transmission range of wireless work interface, multiple networks “hops” maybe needed for one node to exchange data with adjacent node. In recent years, a variety of new routing protocol about ad hoc network was developed. This paper presents a new routing protocol based on the Dynamic Source Routing which is not suitable for the high mobility ad hoc network. The Enhanced DSR adapts quickly to routing changes when node movement is frequent. When a trunk route is broken, this protocol will utilize the alternative route saved in the route to discovery quickly the new route. It improves the performance of the existing DSR algorithm, so that the negative impacts from weakness of DSR are reduced.
Situations and Roles: “Danmu” (Comment-Barrage) Culture in Media Situation
An Yan,Jian Zhi Cai 중앙대학교 영상콘텐츠융합연구소 2018 TechArt :Journal of Arts and Imaging Science Vol.5 No.1
Mobile Web has become the most influential technology in this era, owing to which, IoE (Internet of Everything) is virtually materialized, which enables a single medium to carry various information and construct situations for experiencing, linking and interacting for social networking, media playing, gaming, shopping and educational apps. It also connects the Small Worlds, in Duncan J. Watts’ words. In this new interactive system, informational flows are bilateral, which means individuals not only just take in information but also give out their views and emotional feelings on the Net. They express themselves and interact with each other, further defining their new social roles online. This paper, a research on the basis of Meyrowitz’s “situational approach”, attempts to inquire the connotation of the word “situation” under the context of IoE era, and then study the impacts of “danmu” on Internet users’ behaviors and social roles.
Zhi‐Jun Zhou,Xiao-Yan KOU,Lei-YangQIAN,Jing LIU 한국곤충학회 2016 Entomological Research Vol.46 No.3
The Chinese bush cricket, Gampsocleis gratiosa, has a long history as a pet in China. To date, the sequencing of its whole genome is unavailable as a non‐model organism. Transcriptomic information is also scarce for this species. The G. gratiosa transcriptome was sequenced using Illumina HiSeq 2000 paired‐end sequencing technology. In total 52 million clean reads with an average length of 90 bp were generated, which produced 74,821 unigenes with a mean length of 580 bp and an N50 length of 759 bp. In total 29,674 (39.66%) unigenes were successfully annotated against the NR, NT, Swiss‐Prot, Gene Ontology (GO), Clusters of Orthologous Groups of proteins (COGs) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. Further functionally classified of unigenes against GO, COGs and KEGG found that a total of 11,935 (19.95%) unigenes were categorized into 61 GO terms, 19,576 unigenes were clustered into 25 COG functional categories and 17,971 unigenes were assigned to 258 KEGG pathways. In addition, 2093 microsatellite loci were identified, of which 591 loci had flanking sequences suitable for polymerase chain reaction (PCR) primer design. The transcriptome profile of G. gratiosa contributed to the accumulation of orthopteran genomic data, and the microsatellite loci provided useful tools for future studies of this and other closely related Gampsocleis species.
Zhi Ma,Chung-Bang Yun,Yan-Bin Shen,Feng Yu,Hua-Ping Wan,Yao-Zhi Luo 국제구조공학회 2019 Smart Structures and Systems, An International Jou Vol.24 No.4
A Bayesian dynamic linear model (BDLM) is presented for a data-driven analysis for response prediction and load effect separation of a revolving auditorium structure, where the main loads are self-weight and dead loads, temperature load, and audience load. Analyses are carried out based on the long-term monitoring data for static strains on several key members of the structure. Three improvements are introduced to the ordinary regression BDLM, which are a classificatory regression term to address the temporary audience load effect, improved inference for the variance of observation noise to be updated continuously, and component discount factors for effective load effect separation. The effects of those improvements are evaluated regarding the root mean square errors, standard deviations, and 95% confidence intervals of the predictions. Bayes factors are used for evaluating the probability distributions of the predictions, which are essential to structural condition assessments, such as outlier identification and reliability analysis. The performance of the present BDLM has been successfully verified based on the simulated data and the real data obtained from the structural health monitoring system installed on the revolving structure.
Zhi-Zhun Mo,Zhi-Xiu Lin,ZiRen Su,Lin Zheng,Hui-Lin Li,JianHui Xie,Yan-Fang Xian,Tie-Gang Yi,Shui-Qing Huang,Jian-Ping Chen 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.9
Angelica sinensis (AS, Danggui in Chinese) is an important herbal component of various traditional formulae for the management of asthenia and its tonic effects. Although AS has been shown to ameliorate cognitive damage and nerve toxicity in D-galactose (D-gal)-elicited senescent mice brain, its effects on liver and kidney injury have not yet been explored. In this work, mice were subjected to hypodermic injection with D-gal (200 mg/kg) and orally gavaged with AS (20, 40, or 80 mg/kg) once a day for 8 successive weeks. Results revealed that AS significantly improved liver and kidney function as assessed by organ index and functional parameters. In addition, AS pretreatment effectively ameliorated the histological deterioration. AS attenuated the MDA level and markedly enhanced the activities and gene expressions of antioxidative enzymes, namely Cu, Zn-SOD, CAT, and GPx. Furthermore, AS markedly inhibited the D-gal-mediated increment of expressions of inflammatory cytokines iNOS, COX-2, IκBα, p-IκBα, and p65 and promoted the IκBα expression level in both hepatic and renal tissues. In sum, AS pretreatment could effectively guard the liver and kidney of mice from D-gal-induced injury, and the underlying mechanism was deemed to be intimately related to attenuating oxidative response and inflammatory stress.
Zhi, Ai-min,Zhou, Xiang-yan,Zuo, Jian-jun,Zou, Shi-geng,Huang, Zhi-yi,Wang, Xiao-lan,Tao, Lin,Feng, Ding-yuan Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.2
In this study, we cloned, sequenced and characterized porcine y+L Amino Acid Transporter-1 (y+LAT1). By screening a translated EST database with the protein sequence of the human $y^{+}$LAT1 and by using rapid amplification of cDNA ends (RACE), the full-length cDNA encoding porcine $y^{+}$LAT1 was isolated from porcine intestine RNA. It was 2,111 bp long, encoding a 511 amino acid trans-membrane glycoprotein composed of 12 transmembrane domains. The predicted amino acid sequence was found to be 91%, 90%, 87% and 87% identical to those of cattle, human, mouse and rat $y^{+}$LAT1 respectively. Real-time RT-PCR results indicated that the small intestine had the highest $y^{+}$LAT1 mRNA abundance and the lung had the lowest $y^{+}$LAT1 mRNA abundance. Baby hamster kidney (BHK) cells transfected with green fluorescent protein (GFP) tagged porcine $y^{+}$LAT1 cDNA indicated that the cellular localization of the gene product in BHK was on the plasma membrane.
Effects of Chronic Mild Stress in Female Bax Inhibitor-1-Gene Knockout Mice
Zhi-Yan Sui,Han Jung Chae,Guang-Biao Huang,Tong Zhao,Sushma Shrestha Muna,정영철 대한정신약물학회 2012 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.10 No.3
Objective: The anti-apoptotic protein Bax inhibitor-1 (BI-1) is a regulator of apoptosis linked to endoplasmic reticulum (ER)stress, and BI-1-/- mice exhibit increased sensitivity to tissue damage. The purpose of this study was to investigate the role of BI-1 in the pathogenesis of chronic mild stress (CMS)-induced depression-like behaviors in BI-1-/- mice. Methods: We delivered CMS for 2 or 6 weeks in BI-1-knockout and wild-type mice. Control groups of BI-1-knockout and wild-type mice were left undisturbed. The measured parameters were sucrose consumption at weeks 1, 2, 3, 4, 5, and 6, spontaneous locomotion, and a forced swimming test (FST) at weeks 2 and 6. Results: Significant decreases in sucrose consumption and increases in immobility time in the FST were observed in both stress groups compared with the non-stress groups. Interestingly, at week 2, but not at week 6, BI-1-/--stress mice showed less sucrose intake and greater immobility time than did BI-1+/+-stress mice. Conclusion: These results suggest that BI-1 may play role in protecting against the depressogenic effects of CMS in the short term, but not in the long term. Further study is required to deepen understanding of the role of BI-1 in protecting against depression.
Fretting Fatigue Behavior of Ti–6Al–4V and Ti–10V–2Fe–3Al Alloys
Zhi Yan Li,Xiao Long Liu,Guo Qing Wu,Zheng Huang 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.1
The effect of fretting on fatigue performance of different microstructures for titanium alloy was studied using a high-frequencypush–pull fatigue testing machine. Both plain and fretting fatigue curves were obtained for comparative analysis of the frettingeffect on fatigue performance of the different titanium alloy. The result shows that the strength, plain fatigue of Ti6Al4Vtitanium is lower than those of Ti1023 titanium. But the fretting fatigue of Ti6Al4V titanium is higher under each contactstress. The fatigue source depth of Ti1023 alloy is greater than Ti6Al4V alloy. Hardening of Ti1023 alloy is more seriousafter fretting. The wear mechanism of two titanium alloys is different, Ti1023 titanium alloy is more sensitive to fretting wear.