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A Diversified Message Type Forwarding Strategy Based on Reinforcement Learning in VANET
Guoai Xu,Boya Liu,Guosheng Xu,Peiliang Zuo 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.9
The development of Vehicular Ad hoc Network (VANET) has greatly improved the efficiency and safety of social transportation, and the routing strategy for VANET has also received high attention from both academia and industry. However, studies on dynamic matching of routing policies with the message types of VANET are in short supply, which affects the operational efficiency and security of VANET to a certain extent. This paper studies the message types in VANET and fully considers the urgency and reliability requirements of message forwarding under various types. Based on the diversified types of messages to be transmitted, and taking the diversified message forwarding strategies suitable for VANET scenarios as behavioral candidates, an adaptive routing method for the VANET message types based on reinforcement learning (RL) is proposed. The key parameters of the method, such as state, action and reward, are reasonably designed. Simulation and analysis show that the proposed method could converge quickly, and the comprehensive performance of the proposed method is obviously better than the comparison methods in terms of timeliness and reliability.
A Study on BMPR-IB Genes of Bayanbulak Sheep
Zuo, Beiyao,Qian, Hongguang,Wang, Ziyu,Wang, Xu,Nisa, Noor,Bayier, Aierdin,Ying, Shijia,Hu, Xiaolong,Gong, Changhai,Guo, Zhiqin,Wang, Feng Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.1
The average twin lambing rate of Bayanbulak sheep is 2% to 3%. However, a flock of sheep with a close genetic relationship and an average of 2 to 3 lambs per birth has been found recently. To determine the major genes controlling the prolificacy of the flock in the present study, the flock was designated A while 100 normal Bayanbulak sheep were randomly selected to comprise the control flock B. Ligase detection reaction method was applied to detect and analyze the 10 mutational loci of the 3 candidate prolificacy genes including bone morphogenetic protein type I receptors, bone morphogenetic protein 15, and growth differentiation factor 9. The 10 mutational loci are as follows: FecB locus of the BMPR-IB gene; $FecX^I$, $FecX^B$, $FecX^L$, $FecX^H$, $FecX^G$, and $FecX^R$ of the BMP15 gene; and G1, G8, and FecTT of the GDF9 gene. Two mutations including BMPR-IB/FecB and GDF9/G1 were found in Bayanbulak sheep. Independence test results of the two flocks demonstrate that the FecB locus has a significant effect on the lambing number of Bayanbulak sheep. However, the mutation frequency of the G1 locus in GDF9 is very low. Independence test results demonstrate that the GDF9 locus does not have a significant impact on the lambing performance of Bayanbulak sheep. Among the 10 detected loci, BMPR-IB/FecB is the major gene that influences the high lambing rate of Bayanbulak sheep.
Zuo Sasa,Jiang Di,Niu Dongze,Zheng Mingli,Tao Ya,Xu Chuncheng 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.8
Objective: This study investigated a method of preparing corn stover for Irpex lacteus (I. lacteus) treatment to improve its in vitro rumen degradability under non-sterile conditions. Methods: Corn stover was inoculated with Lactobacillus plantarum (L. plantarum), Lactobacillus buchneri (L. buchneri), and an equal mixture of these strains, and ensiled for 0, 3, 7, 14, and 28 days. After each period, a portion of the silage was sampled to assess the silage quality, and another portion of the silage was further treated with I. lacteus at 28°C for 28 d. All the samples were analyzed for fermentation quality, chemical composition, and in vitro gas production (IVGP) as a measure of rumen fermentation capacity. Results: Lactic acid bacteria (LAB) was found to improve the silage quality of the corn stover, and the corn stover silage inoculated with L. plantarum produced more lactic acid and higher IVGP than other silage groups. The I. lacteus colonies flourished in the early stage of corn stover silage, especially on the 3-d corn stover silage inoculated with both L. plantarum and L. buchneri. This led to an 18% decrease in the acid detergent lignin content, and a 49.6% increase in IVGP compared with the raw stover. Conclusion: The combination of ensiling with the mixed LAB inoculation and I. lacteus treatment provided a cost-effective method for the improvement of the IVGP of corn stover from 164.8 mL/g organic matter (OM) to 246.6 mL/g OM.
Zuo, Chaohui,Xia, Man,Liu, Jingshi,Qiu, Xiaoxin,Lei, Xiong,Xu, Ruocai,Liu, Hanchun,Li, Jianliang,Li, Yongguo,Li, Qinglong,Xiao, Hua,Hong, Yuan,Wang, Xiaohong,Zhu, Haizhen,Wu, Qunfeng,Burns, Michael,Li Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.1
Objectives: Intrahepatic recurrence is the major cause of death among patients with hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) after curative surgical resection. Several approaches have been reported to decrease the recurrence rate. The objective of our study was to compare the clinical effects of transcatheter arterial chemoembolization (TACE) combined with interferon-alpha (IFN-${\alpha}$) therapy on recurrence after hepatic resection in patients with HBV-related HCC with that of TACE chemotherapy alone. Methods: We retrospectively analyzed the data from 228 patients who were diagnosed with HBV-related HCC and underwent curative resection between January 2001 to December 2008. The patients were divided into TACE (n = 126) and TACE-IFN-${\alpha}$ (n = 102) groups for postoperative chemotherapy. The TACE regimen consisted of 5-fluorouracil (5-FU), cisplatin (DDP), and the emulsion mixed with mitomycin C (MMC) and lipiodol. The recurrence rates, disease-free survival (DFS), overall survival (OS), and risk of recurrence were evaluated. Results: The clinicopathological parameters and adverse effects were similar between the 2 groups (P > 0.05). The median OS for the TACE-IFN-${\alpha}$ group (36.3 months) was significantly longer than that of the TACE group (24.5 months, P < 0.05). The 3-and 5-year OS for the TACE-IFN-${\alpha}$ group were significantly longer than those of the TACE group (P < 0.05) and the recurrence rate was significantly lower (P < 0.05). The TACE and IFN-${\alpha}$ combination therapy, active hepatitis HBV infection, the number of tumor nodules, microvascular invasion, liver cirrhosis, and the BCLC stage were independent predictors of OS and DFS. Conclusions: The use of the TACE and IFN-${\alpha}$ combination chemotherapy after curative hepatic resection safely and effectively improves OS and decreases recurrence in patients with HBV-related HCC who are at high risk. Our findings can serve as a guide for the selection of postoperative adjuvant chemotherapy for patients with HBV-related HCC who are at high risk of recurrence.
Anti-Tumor Effect of a Novel DOX/GA-CdTe QD was Mediated by Apoptotic and Autophagic Cell Death
Huaqin Zuo,Fan Wang,Di Zhou,Yi Zhou,Bing Chen,Jian Ouyang,Peipei Xu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.1
Burkitt's lymphoma is a highly proliferative B-cell malignancy characterized by MYC oncogene translocation. Intensive short-cycle chemotherapy could effectively improve the outcome of this disease. However, drug resistance limits the treatment of refractory/relapsed disease. Thus, we constructed and investigated a novel cadmium–tellurium quantum dot conjugated with doxorubicin and gambogic acid (DOX/GA-CdTe QDs) for cancer cell combined treatment in Raji, a Burkitt's lymphoma cell line. Results showed that DOX/GA-CdTe QDs could significantly improve anti-tumor effects compared with drugs alone in the Raji cell line. Flow cytometry, transmission electron micrographs and overexpression of Beclin1 and LC3 II/I showed that apoptosis and autophagy were involved in the process. However, DOX/GA-CdTe QDs did not cause cell cycle arrest, whereas DOX alone or combined with GA could cause apparent G2/M phase arrest. Hence, the novel DOX/GA-CdTe QDs offer a promising approach of drug delivery into cancer cells.
( Haiwei Zuo ),( Yanjing Sun ),( Changlin Lin ),( Song Li ),( Hongli Xu ),( Zefu Tan ),( Yanfen Wang ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.7
In-band Full-duplex (IBFD) wireless communication allows improved throughput for wireless networks. The current Half-duplex (HD) medium access mechanism Request to Send/Clear to Send (RTS/CTS) has been directly applied to IBFD wireless networks. However, this is only able to support a symmetric dual link, and does not provide the full advantages of IBFD. To increase network throughput in a superior way to the HD mechanism, a novel three-way handshaking access mechanism RTS/SRTS (Second Request to Send)/CTS is proposed for point to multipoint (PMP) IBFD wireless networks, which can support both symmetric dual link and asymmetric dual link communication. In this approach, IBFD wireless communication only requires one channel access for two-way simultaneous packet transmissions. We first describe the RTS/SRTS/CTS mechanism and the symmetric/asymmetric dual link transmission procedure and then provide a theoretical analysis of network throughput and delay using a Markov model. Using simulations, we demonstrate that the RTS/SRTS/CTS access mechanism shows improved performance relative to that of the RTS/CTS HD access mechanism.
( Zhenshun Xu ),( Shangsu Zuo ),최희수 ( Heesu Choi ),박대희 ( Daihee Park ),정용화 ( Yongwha Chung ),조충호 ( Choong-ho Cho ) 한국정보처리학회 2015 한국정보처리학회 학술대회논문집 Vol.22 No.1
복잡한 그리드 컴퓨팅 환경에서 수행한 잡의 실패율을 낮추는 것은 그리드 환경의 효율성과 선순환을 위한 필수적인 요건이다. 본 논문에서는 데이터마이닝의 대표적인 방법인 결정트리의 C4.5 알고리즘을 이용하여 WLCG에서 수행한 CMS 잡 모니터링 결과에 대한 오류를 예측하는 모델을 설계하고 구현하였다. 제안한 예측 모델은, 1) CMS 대시보드에서 모니터링 결과 데이터를 추출하여 오라클 테이블에 로딩한다. 2) 결정트리인 C4.5 알고리즘을 기반으로 Oracle Data Miner에서 예측 모델링을 수 행한다. 3) C4.5의 파라미터를 조절하여 적절한 예측결과 값을 도출한다.