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APPROXIMATE OPTIMAL AUTOSAR SOFTWARE COMPONENTS DEPLOYING APPROACH FOR AUTOMOTIVE E/E SYSTEM
Zheng Ran,Hua Yan,Huimin Zhang,Yun Li 한국자동차공학회 2017 International journal of automotive technology Vol.18 No.6
The AUTOSAR has been developed as the worldwide standard for automotive E/E software systems, making the electronic components of different suppliers to be employed universally. However, as the number of component-based applications in modern automotive embedded systems grows rapidly and the hardware topology becomes increasingly complex, deploying such large number of components in automotive distributed system in manual way is over-dependent on experience of engineers which in turn is time consuming. Furthermore, the resource limitation and scheduling analysis make the problems more complex for developers to find out an approximate optimal deploying approach in system integration. In this paper, we propose a novel method to deploy the AUTOSAR components onto ECUs with the following features. First, a clustering algorithm is designed for deploying components automatically within relatively low time complexity. Second, a fitness function is designed to balance the ECUs load. The goal of our approach is to minimize the communication cost over all the runnable entities while meeting all corresponding timing constraints and balancing all the ECUs load. The experiment results show that our approach is efficient and has well performance by comparing with other existing methods in specific and synthetic data set.
Cai, Zheng,Fan, Xiaohui,Bian, Fuyan,Zabludoff, Ann,Yang, Yujin,Prochaska, J. Xavier,McGreer, Ian,Zheng, Zhen-Ya,Kashikawa, Nobunari,Wang, Ran,Frye, Brenda,Green, Richard,Jiang, Linhua American Astronomical Society 2017 The Astrophysical journal Vol.839 No.2
<P>Cosmological simulations suggest a strong correlation between high optical-depth Lya absorbers, which arise from the intergalactic medium, and 3D mass overdensities on scales of 10-30 h(-1) comoving Mpc. By examining the absorption spectra of similar to 80,000 QSO sight lines over a volume of 0.1 Gpc(3) in the Sloan Digital Sky Survey III (SDSS-III), we have identified an extreme overdensity, BOSS1441, which contains a rare group of strong Lya absorbers at z = 2.32 +/- 0.02. This absorber group is associated with six QSOs at the same redshift on a 30 comoving Mpc scale. Using Mayall/MOSAIC narrowband and broadband imaging, we detect Lya emitters (LAEs) down to 0.7 x L-Ly alpha ' * a and reveal a large-scale structure of LAEs in this field. Our follow-up LBT observations have spectroscopically confirmed 20 galaxies in the density peak. We show that BOSS1441 has an LAE overdensity of 10.8 +/- 2.6 on a 15 comoving Mpc scale, which could collapse to a massive cluster with M greater than or similar to 10(15) M-circle dot at z similar to 0. This overdensity is among the most massive large-scale structures at z similar to 2 discovered to date.</P>
Zheng Qian,Wang Yifang,Zhao Ran,Han Peipei,Zhao Jun,Li Limei,Zhou Xiaohui,Li Ping,Mo Yingxi,Pan Xinli,Luo Wenqi,Zhou Xiaoying 한국유전학회 2023 Genes & Genomics Vol.45 No.7
Background Non-voltage-gated sodium channel, also known as the epithelial sodium channel (ENaC), formed by heteromeric complexes consisting of SCNN1A, SCNN1B, and SCNN1G, is responsible for maintaining sodium ion and body fluid homeostasis in epithelial cells. However, no systematic study of SCNN1 family members has been conducted in renal clear cell carcinoma (ccRCC) to date. Objective To investigate the abnormal expression of SCNN1 family in ccRCC and its potential correlation with clinical parameters. Methods The transcription and protein expression levels of SCNN1 family members in ccRCC were analyzed based on the TCGA database, and were confirmed by quantitative RT-PCR and immunohistochemical staining assays, respectively. The area under curve (AUC) was used to evaluate the diagnostic value of SCNN1 family members for ccRCC patients. Results The mRNA and protein expression of SCNN1 family members was significantly downregulated in ccRCC compared with normal kidney tissues, which might be due to DNA hypermethylation in the promoter region. It is worth noting that the AUC of SCNN1A, SCNN1B, and SCNN1G were 0.965, 0.979, and 0.988 based on the TCGA database (p < 0.0001), respectively. The diagnostic value was even higher when combing these three members together (AUC = 0.997, p < 0.0001). Intriguingly, the mRNA level of SCNN1A was significantly lower in females compared with males, while SCNN1B and SCNN1G were increased with the progression of ccRCC and remarkably associated with a worse outcome for patients. Conclusion The aberrantly decrease of SCNN1 family members might serve as valuable biomarkers for the diagnosis of ccRCC.
Reliability Modeling and Analysis on Metallized Film Capacitors for MMC
Yao Ran,Zheng Meimei,Li Hui,Lai Wei,Wang Xiao,Long Haiyang 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
Metallized film capacitor’s (MFC’s) reliability directly affects the stable operation of MMC valve. Conventional reliability assessment method based on data statistics is limited. This paper studies the reliability modeling of MFC considering aging for the application condition of MMC valve. Firstly, the temperature field and electric field model of MFC is established, and the temperature and electric stress distribution are explored. Secondly, the lifetime model of MFC is established based on the electrical-thermal aging of dielectric films. Finally, the aging model of MFC is established from the aspect of equivalent series resistance. Results show that the aging rate of MFC increase with the service time going by, and increase sharply after 21 years. The failure rate of MFC is small at the beginning of operation, and there is a turning point in the 23rd year. Since then, the failure rate of MFC increases sharply. The lifetime of MFC is concentrated.
Effects of Modified MMT on Mechanical Properties of EVA/MMT Nanocomposites and Their Foams
Xu, Zheng Run,Park, Hae Youn,Kim, Ho Young,Seo, Kwan Ho WILEY-VCH Verlag 2008 Macromolecular symposia Vol.264 No.1
<P>In this study, nanocomposites of poly(ethylene-co-vinyl acetate) with two kinds of organically modified montmorillonite (OMMT) were prepared by melt intercalation. Their structures and mechanical properties were characterized by X-ray diffraction (XRD) and tensile test respectively. Especially, foaming of these nanocomposites mixed with chemical blowing agent was carried out through compression molding. Influences of OMMT on foaming ratio and mechanical properties were investigated by density test, tensile test and tear test. Results revealed that both kinds of OMMT with proper content increased tensile strength and Young's modulus of nanocomposites without a compromise of elongation at break. For foaming, OMMTs apparently improved foaming ratio and in particular, one of them can improve tear strength, tensile strength, Young's modulus and elongation although the density was decreased.</P>
Lei Fang,Ran-ran Zhu,Zhen Sang,Xiao-ting Xu,Lin-yun Zheng,Yanwei Xiang,Chaoyang Guo,Zhenrui Li,Stephane Alexandre Espinosa,Qi Zhang,Chunlei Shan 한국한의학연구원 2023 Integrative Medicine Research Vol.12 No.2
Background: To meet the growing global demand for rehabilitation services, the World Health Organization (WHO) launched Rehabilitation 2030. This study was commissioned by the WHO to investigate the integration degree of traditional Chinese medicine (TCM) in Chinese health system rehabilitation services and the demand for TCM rehabilitation in China. Methods: Twenty TCM rehabilitation experts and relevant government administrators were invited to complete the questionnaire between September 2019 and January 2022. The development of traditional, complementary, and integrative medicine (TCI) rehabilitation in China was assessed primarily based on six different health system components. Results: 26 policies, regulations, and national strategic plans related to TCI rehabilitation were issued by relevant government departments since 2002; notably, 14 policies related to TCI rehabilitation development were intensively introduced from 2016 to 2021. These policies cover the three main areas of financing, infrastructure development, and service delivery. The National Administration of Traditional Chinese Medicine's investment in TCM clinical capacity infrastructure and scientific research in 2019–2021 increased by 66% compared to 2010–2012, and the average number of TCM hospitals with rehabilitation departments in 2020 increased by 6.5% compared to 2018. The proportion of community health service centers providing TCM services in primary medical and health institutions has increased by 30.8% over the past 10 years. Conclusion: Long-term continuous policies, substantial financial investment, and expansion of the scope of TCI rehabilitation services in primary care institutions have effectively contributed to the rapid development of TCI rehabilitation. However, human resources and financing mechanisms for TCI rehabilitation need further improvement.