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| 1 | A Review of Modular Multilevel Converters显示文摘模块组合多电平变换器(modular multilevel converter,MMC)具有高度模块化、易于扩展、输出电压波形好等特点,尤其适用于中高压大功率系统应用。首先介绍MMC的电路拓扑和工作原理,总结MMC的主要技术特点;然后分别回顾MMC在脉冲调制、直流电压控制、预充电、环流、谐波、数学模型、主电路参数设计、故障保护等关键问题的最新研究进展,以及其在电力传动、电能质量问题治理领域的工程应用现状,在此基础上指出MMC今后亟待研究的关键问题。相关研究结果表明,MMC在电力系统中有广泛的应用前景,是未来中高压大功率系统,尤其是高压输电技术的重要发展方向。 | YANG Xiaofeng LIN Zhiqin ZHENG Trillion Q. YOU Xiaojie | 2013 | 中国电机工程学报2013，33，6： | 99 |
| 2 | A randomized controlled clinical trial on the treatment of Thymosin-a1 versus interferon-α in patients with hepatitis B显示文摘INTRODUCTIONChronic hepatitis B virus (HBV) infection is a serious problem because of its world wide distribution and possible adverse sequelae ,such as cirrhosis and hepatocellular carcinoma .The World Health Organization estimates that HBV has infected mord than 350 million people worldwide ,and up to 20% of them will become chromic carricrs and will be at significant risk for cirrhosis and HCC .The ultimate goal of the therapy for chronic hepatitis B is to prevent progression to cirrhosis and to prevent development of HCC. | Jing You Lin Zhuang Bao Zhang Tang Wei Bo Yang Su Ying Ding Wu Li Rong Xue Wu Hong Li Zhang Yan Mei Zhang Shao Ming Yan Lu Zhang ~1Department of Infectious Diseases,The First Affiliated Hospital of Kunming Medical College,Kunming 650032,Yunnan Province,China ~2Departrnent of Hepatology,Kunming Third Municipal People’s Hospital,Kunming 650041,Yunnan Province,China | 2001 | World Journal of Gastroenterology2001，7，3： | 48 |
| 3 | Expression of regulating apoptosis gene and apoptosis index in primary liver cancer显示文摘INTRODUCTIONProgramed cell death plays an important role in thegenesis of cancer.Certain cancer genes canregulate apoptosis.Recently,several proteins thatare structurally related to Bcl-2,an inhibitor ofapoptosis,have been identified.Therefore,novel strategies and agents that target specificmolecular pathways,as well as triggering a | Hong Yu Xu You Lin Yang Xi Li Guan Guang Song Ai Min Jiang Li Jun Shi | 2000 | World Journal of Gastroenterology2000，6，5： | 21 |
| 4 | Special Section:SARS-CoV-2 Preliminary evidence from a multicenter prospective observational study of the safety and efficacy of chloroquine for the treatment of COVID-19显示文摘Effective therapies are urgently needed for the SARS-CoV-2 pandemic.Chloroquine has been proved to have antiviral effect against coronavirus in vitro.In this study,we aimed to assess the efficacy and safety of chloroquine with different doses in COVID-19.In this multicenter prospective observational study,we enrolled patients older than 18 years old with confirmed SARS-CoV-2 infection excluding critical cases from 12 hospitals in Guangdong and Hubei Provinces.Eligible patients received chloroquinephosphate s00 mg,orally,once(half dose)or twice(full dose)daily.Patients treated with non-chloroquine therapy were included as historical controls.The primary endpoint is the time to undetectable viral RNA.Secondary outcomes include the proportion of patients with undetectable viral RNA by day 10 and 14,hospitalization time,duration of fever,and adverse events.A total of 197 patients completed chloroquine treatment,and 176patients were included as historical controls.The median time to achieve an undetectable viral RNA was shorter in chloroquine than in non-chloroquine(absolute difference in medians-6.0 days;95%CI-6.0 to—4.0).The duration of fever is shorter in chloroquine(geometric mean ratio 0.6;95%CIO.5 to 0.8).No serious adverse events were observed in the chloroquine group.Patients treated with half dose experienced lower rate of adverse events than with full dose.Although randomized trials are needed for further evaluation,this study provides evidence for safety and efficacy of chloroquine in COVID-19 and suggests that chloroquine can be a cost-effective therapy for combating the COVID-19 pandemic. | Mingxing Huang Man Li Fei Xiao Pengfei Pang Jiabi Liang Tiantian Tang Shaoxuan Liu Binghui Chen Jingxian Shu Yingying You Yang Li Meiwen Tang Jianhui Zhou Guanmin Jiang Jingfen Xiang Wenxin Hong Songmei He Zhaoqin Wang Jianhua Feng Changqing Lin Yinong Ye Zhilong Wu Yaocai Li Bei Zhong Ruilin Sun Zhongsi Hong Jing Liu Huili Chen Xiaohua Wang Zhonghe Li Duanqing Pei Lin Tian Jinyu Xia Shanping Jiang Nanshan Zhong Hong Shan | 2020 | National Science Review2020，7，9： | 20 |
| 5 | Bone morphogenetic protein 2 promotes transforming growth factor β3-induced chondrogenesis of human osteoarthritic synovium-derived stem cells显示文摘有更高的 chondrogenic 潜力的背景导出 Synovium 的干细胞(SDSC ) 为软骨新生作为房间来源正在吸引可观的注意。我们调查了骨头的效果形态基因的蛋白质(BMP-2 ) 2 在转变生长因素 beta3 (TGF-3 ) 以后导致了在一个小团文化系统从人的 osteoarthritic synovium 孤立的 SDSC 的 chondrogenesis。clonogenicity,干细胞标记表示和孤立的 SDSC 的多区别潜力被殖民地形成统一试金,流动 cytometry 并且包括分别地染色的茜素红 S,油红 O 和 alcian 蓝色的特定的染色决定的方法。SDSC 小团在与或没有 TGF-3 或 / 并且 BMP-2 中等的 chondrogenic 是有教养的。在白天 21 点,直径和小团的重量被测量。SDSC 的 Chondrogenic 区别被藏红染料 O 染色,骨胶原类型染色的 immunohistochemical, sulfated glycosaminoglycan (sGAG ) 合成和骨胶原类型, aggrecan, SOX9,连接蛋白质,骨胶原类型 X 和 BMP 受体的 mRNA 表示评估。在优化 culturing 密度(104/60 cm2 ) 下面孤立的结果房间显示出 clonogenicity 和多区别潜力。这些房间是积极的(99 ) 为 CD44, CD90, CD105 并且否定(10 ) 为 CD34 和 CD71。在包含 TGF-3 与或没有 BMP-2 的 chondrogenic 媒介区分到 chondrocytic 显型的 SDSC。细胞外的矩阵染色的藏红染料 O 是积极的,骨胶原类型的表示被检测。房间小团独自与 TGF-3 对待, BMP-2 在直径和重量是更大的,生产了更多的 sGAGs,并且表示了骨胶原类型和另外的 chondrogenic 标记的高水平,比有 TGF-3 的媒介,除了 COL10A1。结论 SDSC 能从人的 osteoarthritic synovium 被孤立。有 BMP-2 的补充显著地支持了在里面 SDSC 的 vitro TGF-3-induced chondrogenic 区别。 | RUI Yun-feng DU Lin WANG You WANG Yang LUI Pauline po-yee TANG Ting-ting CHAN Kai-ming DAI Ke-rong | 2010 | Chinese Medical Journal2010，，21： | 19 |
| 6 | Minimally invasive surgery alone compared with intensity-modulated radiotherapy for primary stage I nasopharyngeal carcinoma显示文摘Background:The National Comprehensive Cancer Network guidelines recommend intensity-modulated radiotherapy(IMRT)as the primary curative treatment for newly diagnosed nasopharyngeal carcinoma(NPC),but the radiation-related complications and relatively high medical costs remain a consequential burden for the patients.Endoscopic nasopharyngectomy(ENPG)was successfully applied in recurrent NPC with radiation free and relatively low medical costs.In this study,we examined whether ENPG could be an effective treatment for localized stage I NPC.Methods:Ten newly diagnosed localized stage I NPC patients voluntarily received ENPG alone from June 2007 to September 2017 in Sun Yat-sen University Cancer Center.Simultaneously,the data of 329 stage I NPC patients treated with IMRT were collected and used as a reference cohort.The survival outcomes,quality of life(QOL),and medical costs between two groups were compared.Results:After a median follow-up of 59.0 months(95%CI 53.4-64.6),no death,locoregional recurrence,or distant metastasis was observed in the 10 patients treated with ENPG.The 5-year overall survival,local relapse-free survival,regional relapse-free survival,and distant metastasis-free survival among the ENPG-treated patients was similar to that among the IMRT-treated patients(100%vs.99.1%,100%vs.97.7%,100%vs.99.0%,100%vs.97.4%,respectively,P>0.05).In addition,compared with IMRT,ENPG was associated with decreased total medical costs($4090.42±1502.65 vs.$12620.88±4242.65,P<0.001)and improved QOL scores including dry mouth(3.3±10.5 vs.34.4±25.8,P<0.001)and sticky saliva(3.3±10.5 vs.32.6±23.3,P<0.001).Conclusions:ENPG alone was associated with promising long-term survival outcomes,low medical costs,and satisfactory QOL and might therefore be an alternative strategy for treating newly diagnosed localized stage I NPC patients who refused radiotherapy.However,the application of ENPG should be prudent,and prospective clinical tri-als were needed to further verify the results. | You-Ping Liu Xing Lv Xiong Zou Yi-Jun Hua Rui You Qi Yang Le Xia Shao-Yan Guo Wen Hu Meng-Xia Zhang Si-Yuan Chen Mei Lin Yu-Long Xie Li-Zhi Liu Rui Sun Pei-Yu Huang Wei Fan Xiang Guo Ming-Huang Hong Ming-Yuan Chen | 2019 | Cancer Communications2019，39，1： | 17 |
| 7 | Phase 1 clinical trial demonstrated that MUC1 positive metastatic seminal vesicle cancer can be effectively eradicated by modified Anti-MUC1 chimeric antigen receptor transduced T cells显示文摘Recent progress in chimeric antigen receptor-modified T-cell(CAR-T cell) technology in cancer therapy is extremely promising, especially in the treatment of patients with B-cell acute lymphoblastic leukemia. In contrast, due to the hostile immunosuppressive microenvironment of a solid tumor, CAR T-cell accessibility and survival continue to pose a considerable challenge, which leads to their limited therapeutic efficacy. In this study, we constructed two anti-MUC1 CAR-T cell lines. One set of CAR-T cells contained SM3 single chain variable fragment(sc Fv) sequence specifically targeting the MUC1 antigen and co-expressing interleukin(IL) 12(named SM3-CAR). The other CAR-T cell line carried the SM3 sc Fv sequence modified to improve its binding to MUC1 antigen(named p SM3-CAR) but did not co-express IL-12. When those two types of CAR-T cells were injected intratumorally into two independent metastatic lesions of the same MUC1+ seminal vesicle cancer patient as part of an interventional treatment strategy, the initial results indicated no side-effects of the MUC1 targeting CAR-T cell approach, and patient serum cytokines responses were positive. Further evaluation showed that p SM3-CAR effectively caused tumor necrosis, providing new options for improved CAR-T therapy in solid tumors. | Fengtao You Licui Jiang Bozhen Zhang Qiang Lu Qiao Zhou Xiaoyang Liao Hong Wu Kaiqi Du Youcai Zhu Huimin Meng Zhishu Gong Yunhui Zong Lei Huang Man Lu Jirong Tang Yafen Li Xiaochen Zhai Xiangling Wang Sisi Ye Dan Chen Lei Yuan Lin Qi Lin Yang | 2016 | Science China(Life Sciences)2016，59，4： | 16 |
| 8 | Current Status of Diagnosis And Treatment of Primary Breast Cancerin Beijing,2008显示文摘在北京调查诊断的地位和主要乳癌的治疗的目的, 2008。在 2008 在北京作为主要乳癌被诊断的所有病人在这被注册的方法学习。这些病人的信息包括肿瘤的特征,临床的诊断和治疗被收集,并且填设计得好的问询表表格 by trained 测量员。失踪的数据部分通过电话会见被补充。3473 个北京公民全部的结果 A 在北京作为主要乳癌(有同时的双边的乳癌的 25 个病人) 被诊断, 2008。他们中, 82.09% 是征兆的。19.02% 和 34.11% 分别地用好针渴望活体检视(FNAB ) 和核心针活体检视(CNB ) 被诊断。15.92% 收到的哨兵淋巴节点活体检视(SLNB ) 和 24.27% 收到的胸保存外科(英国计算机学会) 。在有 Her-2 的 476 个案例之中积极, 96 仅仅收到的 anti-Her-2 治疗。我们发现标准化水平在不同等级的医院里变化了,与 Grade-III 医院里的高水平。笔记,一些乳癌病人收到了非标准的主要肿瘤治疗:有在 situ (DCIS ) 的 ductal 癌的 65.63% 病人收到了腋的淋巴节点解剖和 36.88% 收到的化疗;25.89% 病人经历了没有边缘地位,保存外科的胸;12.10% 病人收到了化疗不到 4 个周期。结论尽管大多数乳癌病人收到了基本医疗保健,诊断和治疗的模式应该被改进并且应该在北京在未来被标准化。 | Xiao-mei Yuan Ning Wang Tao OuYang Lei Yang Ming-yang Song Ben-yao Lin Yun-tao Xie Jin-feng Li Kai-feng Pan Wei-cheng You Lian Zhang | 2011 | Chinese Journal of Cancer Research2011，23，1： | 14 |
| 9 | Application of next-generation sequencing technology to precision medicine in cancer: joint consensus of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology显示文摘Next-generation sequencing(NGS) technology is capable of sequencing millions or billions of DNA molecules simultaneously.Therefore, it represents a promising tool for the analysis of molecular targets for the initial diagnosis of disease, monitoring of disease progression, and identifying the mechanism of drug resistance. On behalf of the Tumor Biomarker Committee of the Chinese Society of Clinical Oncology(CSCO) and the China Actionable Genome Consortium(CAGC), the present expert group hereby proposes advisory guidelines on clinical applications of NGS technology for the analysis of cancer driver genes for precision cancer therapy. This group comprises an assembly of laboratory cancer geneticists, clinical oncologists, bioinformaticians,pathologists, and other professionals. After multiple rounds of discussions and revisions, the expert group has reached a preliminary consensus on the need of NGS in clinical diagnosis, its regulation, and compliance standards in clinical sample collection. Moreover, it has prepared NGS criteria, the sequencing standard operation procedure(SOP), data analysis, report, and NGS platform certification and validation. | Xuchao Zhang Zhiyong Liang Shengyue Wang Shun Lu Yong Song Ying Cheng Jianming Ying Weiping Liu Yingyong Hou Yangqiu Li Yi Liu Jun Hou Xiufeng Liu Jianyong Shao Yanhong Tai Zheng Wang Li Fu Hui Li Xiaojun Zhou Hua Bai Mengzhao Wang You Lu Jinji Yang Wenzhao Zhong Qing Zhou Xuening Yang Jie Wang Cheng Huang Xiaoqing Liu Xiaoyan Zhou Shirong Zhang Hongxia Tian Yu Chen Ruibao Ren Ning Liao Chunyan Wu Zhongzheng Zhu Hongming Pan Yanhong Gu Liwei Wang Yunpeng Liu Suzhan Zhang Tianshu Liu Gong Chen Zhimin Shao Binghe Xu Qingyuan Zhang Ruihua Xu Lin Shen Yilong Wu | 2019 | Cancer Biology & Medicine2019，16，1： | 14 |
| 10 | Chinese Hα Solar Explorer(CHASE)——a complementary space mission to the ASO-S显示文摘The Chinese HαSolar Explorer(CHASE)is designed to test a newly developed satellite platform and conduct solar observations.The scientific payload of the satellite is an Hαimaging spectrograph(HIS),which can,for the first time,acquire full-disk spectroscopic solar observations in the Hαwaveband.This paper briefly introduces CHASE/HIS including its scientific objectives,technical parameters,scientific application system,etc.The CHASE mission is scheduled to launch in 2021.It will complement the observations by on-orbit solar spacecraft(such as SDO,IRIS,STEREO and PSP),as well as future solar missions of the Solar Orbiter and Advanced Space-based Solar Observatory(ASO-S). | Chuan Li Cheng Fang Zhen Li Ming-De Ding Peng-Fei Chen Zhe Chen Liang-Kui Lin Chang-Zheng Chen Chang-Ya Chen Hong-Jiang Tao Wei You Qi Hao Yu Dai Xin Cheng Yang Guo Jie Hong Min-Jie An Wei-Qiang Cheng Jian-Xin Chen Wei Wang Wei Zhang | 2019 | Research in Astronomy and Astrophysics2019，19，11： | 12 |
| 11 | A curative-intent endoscopic surgery for postradiation nasopharyngeal necrosis in patients with nasopharyngeal carcinoma显示文摘Background:Postradiation nasopharyngeal necrosis(PRNN)is a severe complication after radiotherapy in patients with nasopharyngeal carcinoma(NPC),which can severely affect the quality of life and threaten the patient’s life.Only 13.4%-28.6%of patients can be cured by traditional repeated endoscopic debridement.Here,we introduced an innovative curative-intent endoscopic surgery for PRNN patients and evaluated its clinical efficacy.Methods:Clinical data of 72 PRNN patients who underwent radical endoscopic necrectomy,followed by reconstruc-tion using a posterior pedicle nasal septum and floor mucoperiosteum flap were analyzed to determine the efficacy of this surgery.The endpoints were complete re-epithelialization of the nasopharyngeal defect,relief of headache,and overall survival(OS).Results:All surgeries were successfully performed without any severe postoperative complications or death.The median value of numeric rating scales of pain decreased from 8 before surgery to 0 after surgery(P<0.001).Fifty-one patients(70.8%)achieved complete re-epithelialization of the nasopharyngeal defect.The number of cycles of radiotherapy(odds ratio[OR],7.254;95%confidence interval[CI]1.035-50.821;P=0.046),postoperative pathological result(OR,34.087;95%CI 3.168-366.746;P=0.004),and survival status of flap(OR,261.179;95%CI 17.176-3971.599;P<0.001)were independent risk factors of re-epithelialization of the nasopharyngeal defects.Postoperative patho-logical result(hazard ratio[HR],5.018;95%CI 1.970-12.782;P=0.001)was an independent prognostic factor for OS.The 2-year OS rate of the entire cohort was 77.9%.Conclusion:Curative-intent endoscopic necrectomy followed by construction using the posterior pedicle nasal septum and floor mucoperiosteum flap is a novel,safe,and effective treatment of PRNN in patients with NPC. | Xiong Zou Shun-Lan Wang You-Ping Liu Yan-Ling Liu Ru-Hai Zou Yi-Nuan Zhang Rui You Qi Yang Yu-Long Xie Mei Lin Pei-Yu Huang Rou Jiang Meng-Xia Zhang Chao-Nan Qian Hai-Qiang Mai Ling Guo Ming-Huang Hong Ming-Yuan Chen | 2018 | Cancer Communications2018，38，1： | 11 |
| 12 | Effects of tripchlorolide on the epididymides and testes of rats显示文摘Aim: To further evaluate the antifertility effects of tripchlorolide, a derivative of triptolide produced at the extraction procedure of Tripterygium wilfordii Hook. f., in male rats and to investigate its sites and possible mechanisms of action.Methods: In male rats, tripchlorolidte was given by oral garage at a dose of 50 ug'kg^-1, d^-1 for 5 weeks, fertility wasassessed by mating tests, and biochemical indices and light microscopic obsefvation of the epididymides and testes werealso performed. Results: Administration of tripchlorolide at 50 ,ug, kg ^-1, d^-1 for 3 weeks did not influence the fertilityof male rats, but 5-week treatment rendered the rats infertile. The density and motility of spennatozoa collected fromcanda epididymides were reduced significandy. The epididymal weights, as well as the L-camitine concentration and a-glucosidase content in the epididymal fluid were decreasd. There were no significant differences in a-glucosidase andacid phosphatase (ACP) in caput epididyma/homogenatas between the control and the experimental rats. Obvioos mor-phological changes were observed in the epididymal spematozoa, mainly including head and tail separation or acrosomecurving, Sloughed speprmatids were found in the semirfifeous and epididymal tubules. In testicular homogenates,tripchlorolide had no influence on the lactate dehydrogenase-C4(LDH-C4) and hyaluronidase activities. No apparentlesions were observed in the seminiferous and epididymal epithelium. Conclusion: At the dose level employed,tripchlorolide has a significant effect on the fertility in male rats and the primary sites of actiort may be spenuatids and tes-ticular and epididymal spemmatozoa. | Zuo-Peng WANG Zhi-Ping GU Lin CAO Yang XU Gen-Di YOU Bai-Yong MAO Shao-Zhen QIAN Shanghai Institute of Materia Medical, Chinese Academy of Sciences, Shanghai 200031, China | 1999 | Asian Journal of Andrology1999，1，3： | 10 |
| 13 | Multi-dimensional scenario forecast for generation of multiple wind farms显示文摘A novel multi-dimensional scenario forecast approach which can capture the dynamic temporal-spatial interdependence relation among the outputs of multiple wind farms is proposed.In the proposed approach,support vector machine(SVM)is applied for the spot forecast of wind power generation.The probability density function(PDF)of the SVM forecast error is predicted by sparse Bayesian learning(SBL),and the spot forecast result is corrected according to the error expectation obtained.The copula function is estimated using a Gaussian copula-based dynamic conditional correlation matrix regression(DCCMR)model to describe the correlation among the errors.And the multidimensional scenario is generated with respect to the estimated marginal distributions and the copula function.Test results on three adjacent wind farms illustrate the effectiveness of the proposed approach. | Ming YANG You LIN Simeng ZHU Xueshan HAN Hongtao WANG | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，3： | 10 |
| 14 | Rational optimization of reprogramming culture conditions for the generation of induced pluripotent stem cells with ultra-high efficiency and fast kinetics显示文摘几个抄写因素的宫外的表示能恢复胚胎的房间命运到有教养的体的房间并且产生导致的 pluripotent 干细胞(iPSCs ) ,揭示到 pluripotency 的一条以前未知的小径。然而,这种技术被低效率,慢动力学和多因素的要求当前限制。这里,我们证明 reprogramming 能被优化文化条件改进并且戏剧性地加速了。首先,我们开发了优化定义媒介, iCD1,它允许 Oct4/Sox2/Klf4 (OSK ) 完成的调停的 reprogramming 超离频效率(~10% 在白天 8 点) 。我们也发现这个优化条件使 Sox2 和 Klf4 变为非必需,尽管这二个因素的消除导致更低的效率和更慢的动力学。我们的研究定义一条弄短的线路,两个在预定和因素要求,向 pluripotency。这个新范例不仅提供一个基本原理进一步改进 iPSC 产生而且由定义因素简化 reprogramming 的概念的理解。 | Jiekai Chen Jing Liu You Chen Jiaqi Yang Jing Chen He Liu Xiangjie Zhao Kunlun Mo Hong Song Lin Guo Shilong Chu Deping Wang Ke Ding Duanqing Pei | 2011 | Cell Research2011，21，6： | 9 |
| 15 | Tumorigenesis and spontaneous metastasis by luciferase-labeled human xenograft osteosarcoma cells in nude mice显示文摘 | DU Lin XU Wen-ting FAN Qi-ming TU Bing SHEN Yang YAN Wei TANG Ting-ting WANG You | 2012 | Chinese Medical Journal2012，，22： | 9 |
| 16 | Plasma metabolomic and lipidomic alterations associated with COVID-19显示文摘The pandemic of the coronavirus disease 2019(COVID-19)has become a global public health crisis.The symptoms of COVID-19 range from mild to severe,but the physiological changes associated with COVID-19 are barely understood.In this study,we performed targeted metabolomic and lipidomic analyses of plasma from a cohort of patients with COVID-19 who had experienced different symptoms.We found that metabolite and lipid alterations exhibit apparent correlation with the course of disease in these patients,indicating that the development of COVID-19 affected their whole-body metabolism.In particular,malic acid of the TCA cycle and carbamoyl phosphate of the urea cycle result in altered energy metabolism and hepatic dysfunction,respectively.It should be noted that carbamoyl phosphate is profoundly down-regulated in patients who died compared with patients with mild symptoms.And,more importantly,guanosine monophosphate(GMP),which is mediated not only by GMP synthase but also by CD39 and CD73,is significantly changed between healthy subjects and patients with COVID-19,as well as between the mild and fatal cases.In addition,dyslipidemia was observed in patients with COVID-19.Overall,the disturbed metabolic patterns have been found to align with the progress and severity of COVID-19.This work provides valuable knowledge about plasma biomarkers associated with COVID-19 and potential therapeutic targets,as well as an important resource for further studies of the pathogenesis of COVID-19. | Di Wu Ting Shu Xiaobo Yang Jian-Xin Song Mingliang Zhang Chengye Yao Wen Liu Muhan Huang Yuan Yu Qingyu Yang Tingju Zhu Jiqian Xu Jingfang Mu Yaxin Wang Hong Wang Tang Tang Yujie Ren Yongran Wu Shu-Hai Lin Yang Qiu Ding-Yu Zhang You Shang Xi Zhou | 2020 | National Science Review2020，7，7： | 9 |
| 17 | A Novel Square-wave Pulse Rotation Modulation Strategy for Modular Multilevel Converters显示文摘悬浮直流电容电压的均衡问题是模块组合多电平变换器(modular multilevel converter,MMC)的关键问题之一。提出一种可实现MMC直流电容电压平衡的方波脉冲循环调制(square-wave pulse rotation modulation,SWPRM)策略,在保证合成的阶梯波输出波形不变的前提下,根据MMC的拓扑结构和工作原理,对传统方波脉冲列进行脉冲优化,并按照一定的次序和切换周期进行循环和判断反相调整,获得的循环方波脉冲列作为最终驱动脉冲用于实现对MMC的控制。实验结果表明,采用提出的方波脉冲循环调制策略无需任何电容电压控制措施,在较低开关频率下,实现了MMC各功率单元间有功能量的平均分配和直流电容电压的均衡。 | YANG Xiaofeng LIN Zhiqin ZHENG Trillion Q YOU Xiaojie | 2013 | 中国电机工程学报2013，33，9： | 9 |
| 18 | Progress in ceramic materials and structure design toward advanced thermal barrier coatings显示文摘Thermal barrier coatings(TBCs)can effectively protect the alloy substrate of hot components in aeroengines or land-based gas turbines by the thermal insulation and corrosion/erosion resistance of the ceramic top coat.However,the continuous pursuit of a higher operating temperature leads to degradation,delamination,and premature failure of the top coat.Both new ceramic materials and new coating structures must be developed to meet the demand for future advanced TBC systems.In this paper,the latest progress of some new ceramic materials is first reviewed.Then,a comprehensive spalling mechanism of the ceramic top coat is summarized to understand the dependence of lifetime on various factors such as oxidation scale growth,ceramic sintering,erosion,and calcium–magnesium–aluminium–silicate(CMAS)molten salt corrosion.Finally,new structural design methods for high-performance TBCs are discussed from the perspectives of lamellar,columnar,and nanostructure inclusions.The latest developments of ceramic top coat will be presented in terms of material selection,structural design,and failure mechanism,and the comprehensive guidance will be provided for the development of next-generation advanced TBCs with higher temperature resistance,better thermal insulation,and longer lifetime. | Zhi-Yuan WEI Guo-Hui MENG Lin CHEN Guang-Rong LI Mei-Jun LIU Wei-Xu ZHANG Li-Na ZHAO Qiang ZHANG Xiao-Dong ZHANG Chun-Lei WAN Zhi-Xue QU Lin CHEN Jing FENG Ling LIU Hui DONG Ze-Bin BAO Xiao-Feng ZHAO Xiao-Feng ZHANG Lei GUO Liang WANG Bo CHENG Wei-Wei ZHANG Peng-Yun XU Guan-Jun YANG Hong-Neng CAI Hong CUI You WANG Fu-Xing YE Zhuang MA Wei PAN Min LIU Ke-Song ZHOU Chang-Jiu LI | 2022 | Journal of Advanced Ceramics2022，11，7： | 9 |
| 19 | Effect of arsenic trioxide on human hepatoma cell line BEL-7402 cultured in vitro显示文摘AIM To study the effect of a varyingconcentrations of arsenic trioxide on humanhepatoma cell line BEL-?402 cultured in vitro andits mechanism of action.METHODS The BEL-7402 cells were treatedwith arsenic trioxide(at the concentrations of0.5,1,2 μmol/L,respectively)for 4 successivedays.The cell growth and proliferation wereobserved by cell counting and cell-growth curve.Morphologic changes were studied withelectronmicroscopy.Flow cytometry was usedto assay celI-DNA distribution and the proteinexpression of Bcl-2 and Bax detected byimmunocytochemical method.RESULTS The cell growth was significantlyinhibited by varying concentrations of arsenictrioxide as revealed by cell counting and cell-growth curve,which was dose- and time-dependent.Arsenic trioxide treatment at 0.5,1and 2 μmol/L resulted in a sub-G1 cell peak,theapoptosis rate of the control group was 9.31%and that of 0.5 μmol/L arsenic trioxide 15.53%,no significant difference was seen between thetwo.The apoptosis rates of 1,2 μmol/L arsenictrioxide were 19.10% and 21.87% respectively,which were much higher(both P<0.05).Decrease of G0/G1 phase cells and increase of Sphase cells were observed by flow cytometry,suggesting the inhibition effect of 0.5,1,2 μmol/L arsenic trioxide on BEL-7402 cell lay in the G0/G1 phase.Morphologic changes such asintact cell membrane,nucleic condensation,apoptotic body formation were seen undertransmission electronmicrescopy,whereas the0.5 mol/L arsenic trioxide-treated BEL-7402cells showed decrease of nucleocytoplasmicratio,round nucleus,well-differentiatedorganelles in the cytoplasm.The processes andmicrovilli on the cell surface of the experimentalgroups under scanning electron microscopy weresignificantly decreased.High expressions ofBcl-2 and Bax were detected in 1 and 2 μmol/Larsenic trioxide-treated cells,these were 46%,87.33% and 83.08%,95.83% respectively,among which that of Bax was more significant.Arsenic trioxide treatment at 0.5 μmol/Lresulted in a higher expression level of Bcl-2 andlower expression level of Bax,which were8.81% and 3.83% respectively,as comparedwith that of the control group(15.33%)(P1<0.01,P2<0.01).CONCLUSION Arsenic trioxide not onlyinhibited proliferation but also induced apoptosisof human hepatoma cell line BEL-7402.Theinduced-apoptosis effect of 1,2 μmol/L arsenictrioxide was related to the expression level ofBcl-2 and Bax. | Hong Yu Xu You Lin Yang Yuan Yuan Gao Qiao Li Wu Guang Qiang Gao | 2000 | World Journal of Gastroenterology2000，6，5： | 8 |
| 20 | Repeatability and Reproducibility of Quantitative Assessment of the Retinal Microvasculature Using Optical Coherence Tomography Angiography Based on Optical Microangiography显示文摘Objective The aim of this study was to determine the repeatability and reproducibility of optical coherence tomography angiography(OCTA) based on optical microangiography(OMAG) measurements of macular vessels in normal eyes. Methods In this prospective cohort study, 40 eyes of 40 healthy volunteers underwent repeated OCTA(Cirrus HD-OCT 5000 angiography system, Carl Zeiss Meditec, Inc.) scans on two separate visit days. On each visit day, the eyes were scanned three times. The following parameters were used to quantitatively describe the OCTA images of the superficial vascular network: vessel area density(VAD), vessel skeleton density(VSD), vessel diameter index(VDI), vessel perimeter index(VPI), vessel complexity index(VCI), flux, and foveal avascular zone(FAZ). Coefficient of variation(CV) and intraclass correlation coefficient(ICC) were calculated for evaluating intravisit and intervisit repeatability, as well as interobserver reproducibility. Results The measurements showed high repeatability [CVs ≤ 4.2%(intravisit) and ≤ 4.6%(intervisit)] and interobserver reproducibility(ICCs ≥ 0.923) for all parameters. Conclusion This study demonstrated good repeatability and reproducibility of OCTA based on OMAG for the measurement of superficial vessel parameters in normal eyes. | ZHAO Qi YANG Wen Li WANG Xiao Na Ruikang K Wang YOU Qi Sheng CHU Zhong Di XIN Chen ZHANG Meng Yu LI Dong Jun WANG Zi Yang CHEN Wei LI Yi Feng CUI Rui SHEN Lin WEI Wen Bin | 2018 | Biomedical and Environmental Sciences2018，31，6： | 8 |
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