A polymeric composite protective layer for stable Li metal anodes

Guo Suogang,Wang Li,Jin Yuhong,Piao Nan,Chen Zonghai,Tian Guangyu,Li Jiangang,Zhao Chenchen,He Xiangming 나노기술연구협의회 2020 Nano Convergence Vol.7 No.21

Lithium (Li) metal is a promising anode for high-performance secondary lithium batteries with high energy density due to its highest theoretical specific capacity and lowest electrochemical potential among anode materials. However, the dendritic growth and detrimental reactions with electrolyte during Li plating raise safety concerns and lead to premature failure. Herein, we report that a homogeneous nanocomposite protective layer, prepared by uniformly dispersing ­AlPO 4 nanoparticles into the vinylidene fluoride-co-hexafluoropropylene matrix, can effectively prevent dendrite growth and lead to superior cycling performance due to synergistic influence of homogeneous Li plating and electronic insulation of polymeric layer. The results reveal that the protected Li anode is able to sustain repeated Li plating/stripping for > 750 cycles under a high current density of 3 mA cm −2 and a renders a practical specific capacity of 2 mAh cm −2 . Moreover, full-cell Li-ion battery is constructed by using ­LiFePO 4 and protected Li as a cathode and anode, respectively, rendering a stable capacity after 400 charge/discharge cycles. The current work presents a promising approach to stabilize Li metal anodes for next-generation Li secondary batteries.

Genotypic Characteristics of Haemophilus influenzae Isolates from Pediatric Pneumonia Patients in Chengdu City, Sichuan, China

Tian Guozhong,Zhang Li,Li Machao,Wang Xiaolei,Zheng Yuhong,Li Xiaojing,Huang Cheng,Li Xuechun,Xie Yongqiong,Xu Li,Ren Hongyu,Shao Zhujun 한국미생물학회 2009 The journal of microbiology Vol.47 No.4

Two hundred and seventy-three Haemophilus influenzae strains isolated from pediatric pneumonia patients in China were studied. We used Multilocus Sequence Typing (MLST) to analyze genotypic characteristics. All strains were biotyped and serotyped. Relatedness and patterns of genes among isolates were determined by the analysis of MLST and eBURST. H. influenzae primarily causes acute pneumonia in children under 1 year old. Nontypeable H. influenzae was responsible for most cases of pediatric pneumonia. All 273 strains were classified into eight biotypes. They mostly belonged to the I, II, and III biotypes (17.6%, 43.6%, and 22.7%, respectively). 62 strains (22.7%) produced β-lactamase. We found 28 novel alleles. Fifty different STs were found by MLST, of which 39 were novel. These were ST477 through ST508 and ST521 through ST527. Group 17 and predicted founders 503 were new groups in this study. No STs correlated with strains from Korea, which is adjacent to China. The H. influenzae strains from China appeared to have heterogeneous ST types patterns which may be the reason no outbreaks or epidemics of H. influenzae infections have occurred in Chengdu city, Sichuan, China.

LINC00174 Facilitates Proliferation and Migration of Colorectal Cancer Cells via MiR-3127-5p/ E2F7 Axis

( Yuhong Ma ),( Yuzhen Li ),( Yuanyuan Tang ),( Ning Tang ),( Dengke Wang ),( Xiaofei Li ) 한국미생물 · 생명공학회 2021 Journal of microbiology and biotechnology Vol.31 No.8

The literature indicates that LINC00174 promotes the growth of colorectal cancer (CRC) cells, but its research needs to be enriched. We tried to explore the function and mechanism of LINC00174 in CRC cell proliferation and migration. Bioinformatics analysis predicted the binding relationship and expressions of lncRNA, miRNA and mRNA. Clinical study analyzes the relationship between LINC00174 and clinical data characteristics of CRC patients. The expressions of LINC00174, miR-3127-5p and E2F7 were verified by RT-qPCR, and the combination of the two was verified by dual luciferase analysis and RNA immunoprecipitation as needed. Western blot was used to detect the expression of EMT-related protein and E2F7 protein. Functional experiments were used to evaluate the function of the target gene on CRC cells. LINC00174 was up-regulated in CRC clinical samples and cells and was related to the clinical characteristics of CRC patients. High-expression of LINC00174, contrary to the effect of siLINC00174, promoted cell viability, proliferation, migration and invasion, up-regulated the expressions of N-Cadherin, Vimentin, E2F7, and inhibited the expression of E-Cadherin. MiR-3127-5p was one of the targeted miRNAs of LINC00174 and was down-regulated in CRC samples. In addition, miR-3127-5p mimic partially reversed the malignant phenotype of CRC cells induced by LINC00174. Besides, E2F7 was a target gene of miR-3127-5p, and LINC00174 repressed miR-3127-5p to regulate E2F7. Our research reveals that LINC00174 affected the biological characteristics of CRC cells through regulated miR-3127-5p/ E2F7 axis.

중국 무장애 디자인 규범의 발전과정에 관한 연구

LI YUHONG,이종국 (사)한국교육녹색환경연구원 2019 교육·녹색환경연구 Vol.18 No.1

무장애 설계는 사회적 약자 집단에 대한 관심을 반영한다. 중국은 인구가 가장 많으면서 노인 인구도 가장 많은 나라로서 무장애 설계에 많은 진전을 이루었다. 본 논문의 범위는 1980년대부터 2012년까지로 설정하였으며 현재까지 시행된 두 개의 무장애 설계 기준을 비교함으로써 중국 무장애 설계 표준의 발전 과정을 연구하는 것을 목적으로 한다. 본 논문에서는 두 개 규범의 번호, 장절, 적용범위, 적용대상, 목적 등의 내용을 비교하였다. 분석결과, 2001년 규범이 비해 2012년 규범에서 무장애 발전의 가속화, 규범 적용 범위의 확대, 규범 내용의 보강, 조항의 완화 등의 특징이 있다는 점을 도출할 수 있었다. Barrier-free design reflects the attention of the disadvantaged groups. As a populous country with the largest population and the largest number of elderly people, China has made great progress in the field of the Barrier-free. The scope of this thesis is from the 1980s to 2012 in China, studying the development process of China's barrier-free design standards by comparing the two barrier-free design standards implemented in the history of such design. In this paper, the two standards are compared and analyzed in the following aspects, which are the numbering, chapters, scope of application, applicable objects and purposes, and so on. Compared with the 2001 barrier-free design standards, the 2012 one can be concluded that the development of barrier-free design in China has been accelerated, the scope of application has been widened than before, the content has been supplemented, and restrictions on terms have been reduced.

Sparing Effects of Sufentanil on Epidural Ropivacaine in Elderly Patients Undergoing Transurethral Resection of Prostate Surgery

Huiling Li,Yuhong Li,Rui He 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.3

Purpose: This study examined the sparing effect of sufentanil on the median effectiveconcentration (EC50) of epidural ropivacaine in elderly patients undergoing elective transurethral resection of prostate (TURP). Materials and Methods: This was a prospective randomized double-blind dose-response study. Fifty eight elderlypatients with American Society of Anesthesiologists physical status I‒II who were scheduled for TURP surgery under epidural anesthesia were randomly allocatedto a group receiving 15 mL of ropivacaine (group R) or a group receiving ropivacaine plus 5 μg of sufentanil (group RS). The concentration of ropivacaine was determined by a Dixon’s up-and-down sequential allocation. The first participantreceived 0.3% of ropivacaine in both groups and subsequent concentrations were determined by the response of the previous patient in the same group. The EC50 of epidural ropivacaine was analyzed using the Dixon and Massey method. Results: The EC50 of ropivacaine during TURP surgery was 0.186% (95% confidenceinterval, 0.173‒0.200%) in group R, and 0.136% (95% confidence interval, 0.127‒0.144%) in group RS (p<0.01). No differences in Bromage scale of motor block examination and the onset time of sensory block were observed. Conclusion:Administration of 5 μg of epidural sufentanil caused a 37% reduction in the EC50 of epidural ropivacaine in elderly patients who underwent TURP surgery. Thus, sufentanil addition during surgery of TURP can decrease the dose of ropivacaineanesthesia required.

중국 노인아파트시설 통계현황에 관한 연구 - 상하이 베이징 지역을 중심으로 -

이우홍(LI YUHONG),이종국(Lee, Jong-Kuk) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2

China is now the most populous country in the world. By the end of 2017, China"s population aged 65 and above reached 1.6 billion, accounting for 11.4 percent of the total population of the country. The population of the elderly is a serious problem in China, and it is urgent to solve the problem of housing problems. The paper studies the actuality of China"s Senior Housing by means of documentary survey and data statistics. Using data computing and national policies, Figure out the number of China"s Senior Housing will need to be increased by 2020.

Integrated Solution for Timely Delivery of Customer Change Requests : A Case Study of Using DevOps Approach

Yuhong Liu,Chengbo Li,Wei Liu 보안공학연구지원센터(IJUNESST) 2014 International Journal of u- and e- Service, Scienc Vol.7 No.2

Wireless charging system for unmanned aerial vehicles using lightweight and compact receiver modules

Yuhong Tian,Zhenjie Li,Hao Liu,Yiqi Liu,Mingfei Ban,Junyuan Zheng 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.4

This paper proposes a wireless charging system (WCS) for unmanned aerial vehicles (UAVs) that features a lightweight andcompact receiver module and constant current/constant voltage (CC/CV) charging. Optimizing the LCC-none compensation topology reduces the weight and volume of the receiver module mainly by avoiding the secondary-side resonant capacitors. In addition, high system performance similar to that of the LCC-S compensation topology is achieved. A magnetic coupler with dual power transfer channels is designed using the specific structure of the UAV. The reasonable charging zone is determined by optimizing the magnetic coupler parameters. Besides, a primary-side PI-controlled Buck converter is used to realize CC/CV charging with a high system efficiency under a suitable misalignment range to avoid the secondary-side circuit and control complexity. Finally, both simulation and experimental results verify the feasibility of the designed WCS. The total weight of the receiver coil is only 54 g. During 5 A CC charging, the tested maximum output power and system efficiency values are 90 W and 87.2%, respectively.

Hadoop-based ARIMA Algorithm and its Application in Weather Forecast

Leixiao Li,Zhiqiang Ma,Limin Liu,Yuhong Fan 보안공학연구지원센터 2013 International Journal of Database Theory and Appli Vol.6 No.5

Construction of Genetic Microsatellite Maps for Some Chromosomes in Chinese Swine Reference Population

Su, Yuhong,Xiong, Yuanzhu,Zhang, Qin,Liu, Weimin,Jiang, Siwen,Yu, Li,Xia, Xuanyan,Zeng, Rong,Deng, Changyan Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.10

In aiming to identify the genes or genetic regions responsible for quantitative traits, a swine reference population had been constructed using three Large White boars and seven Meishan dams as parents. Five $F_1$ males and 23 $F_1$ females were intercrossed to generate 147 $F_2$ offspring. Thirty-one microsatellite markers covering Sus scrofa chromosomes (SSC) 2, 4, 6 and 7 were genotyped for all members. Construction of genetic microsatellite maps was performed using the CRIMAP software package. The lengths of these chromosomes were longer than MARC maps. They were 158.6cM, 180.3cM, 197.3cM and 171.4cM, respectively. A two modified orders of markers were observed for SSC6 and SSC7. The female map on SSC6 was shorter than male map, and the contrary was on SSC 2, 4 and 7.