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Advances of polymer binders for silicon-based anodes in high energy density lithium-ion batteries

InfoMat 2021年第5期3卷 460-501页

作者： Yu-ming Zhao Feng-Shu Yue Shi-cheng Li Yu Zhang Zhong-Rong Tian Quan Xu Sen Xin Yu-Guo Guo CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)BeijingChina Shenzhen EUBO New Material Technology Co. LtdShenzhenChina University of Chinese Academy of Sciences BeijingChina

Conventional lithium-ion batteries(LIBs)with graphite anodes are approaching their theoretical limitations in energy *** the conventional graphite anodes with high-capacity Si-based anodes represents one of the most promising strategies to greatly boost the energy density of ***,the inherent huge volume expansion of Si-based materials after lithiation and the resulting series of intractable problems,such as unstable solid electrolyte interphase layer,cracking of electrode,and especially the rapid capacity degradation of cells,severely restrict the practical application of Sibased *** the past decade,numerous reports have demonstrated that polymer binders play a critical role in alleviating the volume expansion and maintaining the integrity and stable cycling of Si-based *** this review,the state-of-the-art designing of polymer binders for Si-based anodes have been systematically summarized based on their structures,including the linear,branched,crosslinked,and conjugated conductive polymer ***,the comprehensive designing of multifunctional polymer binders,by a combination of multiple structures,interactions,crosslinking chemistries,ionic or electronic conductivities,soft and hard segments,and so forth,would be promising to promote the practical application of Si-based ***,a perspective on the rational design of practical polymer binders for the large-scale application of Si-based anodes is presented.

关键词： high energy density lithium-ion battery multifunctional binder polymer binder silicon anode

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大迎角下俯仰振荡对细长体气动特性的影响

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空气动力学学报 2011年第6期29卷 681-687页

作者：叶瑞李栋夏明西北工业大学翼型叶栅空气动力学国防科技重点实验室陕西西安710072

通过对头部无扰动和有扰动的两个细长体模型进行数值计算,分析了各个流场中涡系结构和气动力变化历程,并对比两者之间的差别。发现在高频率小振幅的俯仰振荡作用下,头部无扰动和有扰动的细长体的流场随时间的发展慢慢由非对称转变为对... 详细信息

通过对头部无扰动和有扰动的两个细长体模型进行数值计算,分析了各个流场中涡系结构和气动力变化历程,并对比两者之间的差别。发现在高频率小振幅的俯仰振荡作用下,头部无扰动和有扰动的细长体的流场随时间的发展慢慢由非对称转变为对称。相对于头部有扰动的细长体,在第一个振荡周期内非定常俯仰运动对头部无扰动的细长体作用更明显。

关键词：细长体大迎角 DES方法俯仰振荡非对称涡控制

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Exonuclease Ⅰ and Ⅲ improve the detection efficacy of hepatitis B virus covalently closed circular DNA

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Hepatobiliary & Pancreatic Diseases International 2019年第5期18卷 458-463页

作者： Pei-Xue Jiang Ri-cheng Mao Min-Hui Dong Xue-Ping Yu Qi Xun Jin-Yu Wang Li Jing Deng Qiang Ji-ming Zhang Department of Infectious Diseases Huashan HospitalFudan UniversityShanghaiChina Department of Pathobiology and Key Laboratory of Medical Molecular Virology School of Basic Medical SciencesFudan UniversityShanghaiChina

Background: Hepatitis B virus covalently closed circular DNA (HBV cccDNA) is an important biomarker of hepatitis B virus infection. However, the current methods are not specific and sensitive. The present study aimed to develop a specific and sensitive assay method for the quantification of HBV cccDNA. Methods: Exonuclease Ⅰ(Exo Ⅰ)& Exonuclease Ⅲ(Exo Ⅲ) and specific primer probes are used in real-time PCR. The virus particles isolated from peripheral blood mononuclear cells were used as negative control and HBV1.3 recombinant plasmid 3.2 kb circular DNA fragment was used as positive control. The methods of cccDNA detection were evaluated in cell lines, plasmid, animal model, patient serum and liver biopsies. Results: A linear range of 10 1 –10 7 copies/assay using specific primers for HBV cccDNA was established. HBV cccDNA were only detected in cell lines, animal model and liver tissue. It cannot be detected in serum samples. Intrahepatic HBV cccDNA level had good correlation with intrahepatic total HBV DNA level ( r = 0.765, P < 0.001). Conclusions: The real-time quantitative PCR is an effective and feasible method for sensitive and specific detection of low copy number of cccDNA. The novel detection method is fast, provides high sensitivity and specificity and can be used in clinical practice.

关键词： Hepatitis B virus cccDNA Selective Sensitive

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Improvement of cosmic-ray protonmeasurement with the electromagnetic calorimeter of the Alpha Magnetic Spectrometer

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Radiation Detection Technology and Methods 2021年第1期5卷 90-94页

作者： Fei Zhao Zhi-cheng Tang Zu-Hao Li cheng Zhang Ze-Tong Sun Feng-Ze Zhang Jia-Yu Hu Guo-ming Chen He-Sheng Chen Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

Purpose The energy response of protons measured by electromagnetic calorimeter(ECAL)of Alpha Magnetic Spectrometer(AMS-02)shows disagreement between Monte Carlo(MC)simulation and ***,using the response matrix from MC to apply the energy unfolding,which is crucial for cosmic-ray proton spectrum measurement,is *** a result,cosmic-ray proton spectrum measured by ECAL based on raw MC would be different from the published results(based on the momentum measurement)by *** purpose is tuning the response matrix to agree with *** The independent energy measurement by AMS-02 magnetic spectrometer provides in-flight calibration for *** distributions of proton energy measured by ECAL in MC are corrected after the *** The proton spectrum based on the tuned response matrix is consistent with the published *** The matrix tuning is effective for the energy unfolding for cosmic-ray proton spectrum measurement.

关键词： Cosmic rays Proton spectrum Electromagnetic calorimeter Monte Carlo simulation

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A COMPARISON OF TWO 2D CHANNEL ESTIMATORS FOR OFDM SYSTEM

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Journal of Electronics(China) 2006年第6期23卷 814-819页

作者： Shu Feng cheng Shixin Chen ming Department of Communication Engineering School of Electronic Engineering and Optoelectronic Techniques Nanjing University of Science and Technology Nanjing 210094 China National Key Lab of Mobile Communication Radio Engineering Department Southeast University Nanjing 210096 China

The paper deals with two-dimensional （2D） channel estimation of Orthogonal Frequency Division Multiplexing （OFDM） system ill slow fading wireless channel. We concentrate on two channel estimation schemes： Least Square （LS）＋Weighted BiLinear （WBL） and LS＋Linear Minimum Mean-Squared Error （LMMSE） where the first method is proposed in this paper. After theory analysis and simulation in Typical Urban （TU） channel, we find that LS＋LMMSE achieves the optimal perform- anee by exploiting prior knowledge of channel whereas LS＋WBL, without requiring channel knowl- edge and with only half of the computational amount of LS＋LMMSE, approaches LS＋LMMSE in Bit Error Ratio （BER） performance when the distance of two adjoining pilot symbols along frequency direction is sufficiently small. This makes LS＋WBL very suitable for wideband wireless applications.

关键词： Orthogonal Frequency Division Multiplexing (OFDM) Linear Minimum Mean-SquaredError (LMMSE) Weighted BiLinear (WBL) Channel cstimation Computational amount

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Development and Validation of a Nomogram Based on Perioperative Factors to Predict Post-hepatectomy Liver Failure

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Journal of Clinical and Translational Hepatology 2021年第3期9卷 291-300页

作者： Bin Xu Xiao-Long Li Feng ye Xiao-Dong Zhu Ying-Hao Shen cheng Huang Jian Zhou Jia Fan Yong-Jun Chen Hui-Chuan Sun Department of Liver Surgery and Transplantation Liver Cancer InstituteZhongshan HospitalFudan UniversityShanghaiChina Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education ShanghaiChina Department of Hepatobiliary Surgery Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina

(PHLF)is a severe complication and main cause of death in patients undergoing *** aim of this study was to build a predictive model of PHLF in patients undergoing ***:We retrospectively analyzed patients undergoing hepatectomy at Zhongshan Hospital,Fudan University from July 2015 to June 2018,and randomly divided them into development and internal validation *** validation was performed in an independent *** absolute shrinkage and selection operator(commonly referred to as LASSO)logistic regression was applied to identify predictors of PHLF,and multivariate binary logistic regression analysis was performed to establish the predictive model,which was visualized with a ***:A total of 492 eligible patients were *** and multivariate analysis identified three preoperative variables,total bilirubin(p=0.001),international normalized ratio(p<0.001)and platelet count(p=0.004),and two intraoperative variables,extent of resection(p=0.002)and blood loss(p=0.004),as independent predictors of *** area under receiver operating characteristic curve(referred to as AUROC)of the predictive model was 0.838 and outperformed the model for end-stage liver disease score,albumin-bilirubin score and platelet-albumin-bilirubin score(AUROCs:0.723,0.695 and 0.663,respectively;p<0.001 for all).The optimal cut-off value of the predictive model was *** validation showed the model could predict PHLF accurately and distinguish high-risk ***:PHLF can be accurately predicted by this model in patients undergoing hepatectomy,which may significantly contribute to the postoperative care of these patients.

关键词： Hepatectomy Post-hepatectomy liver failure LASSO Nomogram

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Protective effects of sodium butyrate on rotavirus inducing endoplasmic reticulum stress-mediated apoptosis via PERK-eIF2αsignaling pathway in IPEC-J2 cells

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Journal of Animal Science and Biotechnology 2021年第4期12卷 1543-1554页

作者： ye Zhao Ningming Hu Qin Jiang Li Zhu ming Zhang Jun Jiang Manyi Xiong mingxian Yang Jiandong Yang Linyuan Shen Shunhua Zhang Lili Niu Lei Chen Daiwen Chen College of Animal Science and Technology Sichuan Agricultural UniversityHuimin Road 211#ChengduSichuan Province 611130P.R.China Institute of Animal Nutrition Sichuan Agricultural UniversityHuimin Road 211#ChengduSichuan Province 611130P.R.China Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Sichuan Agricultural UniversityChengduSichuan 611130P.R.China

Background:Rotavirus(RV)is a major pathogen that causes severe gastroenteritis in infants and young *** reticulum(ER)stress and subsequent apoptosis play pivotal role in virus ***,the protective mechanisms of intestinal damage caused by RV are poorly defined,especially the molecular pathways related to enterocytes ***,the aim of this study was to investigate the protective effect and mechanism of sodium butyrate(SB)on RV-induced apoptosis of IPEC-J2 ***:The RV infection led to significant cell apoptosis,increased the expression levels of ER stress(ERS)markers,phosphorylated protein kinase-like ER kinase(PERK),eukaryotic initiation factor 2 alpha(eIF2α),caspase9,and *** PERK pathway using specific inhibitor GSK subsequently reversed RV-induced cell *** SB treatment significantly inhibited RV-induced ERS by decreasing the expression of glucose regulated protein 78(GRP78),PERK,and eIF2α.In addition,SB treatment restrained the ERS-mediated apoptotic pathway,as indicated by downregulation of C/EBP homologous protein(CHOP)mRNA level,as well as decreased cleaved caspase9 and caspase3 protein ***,siRNA-induced GPR109a knockdown significantly suppressed the protective effect of SB on RV-induced cell ***:These results indicate that SB exerts protective effects against RV-induced cell apoptosis through inhibiting ERS mediated apoptosis by regulating PERK-eIF2αsignaling pathway via GPR109a,which provide new ideas for the prevention and control of RV.

关键词： Apoptosis IPEC-J2 PERK-eIF2α Rotavirus Sodium butyrate

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Diffuse large B cell lymphoma with bilateral adrenal and hypothalamic involvement: A case report and literature review

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World Journal of Clinical Cases 2019年第23期7卷 4075-4083页

作者： Ping An Kang Chen Guo-Qing Yang Jing-Tao Dou Yu-Long Chen Xin-ye Jin Xian-Ling Wang Yi-ming Mu Quan-Shun Wang Department of Endocrinology Chinese PLA General HospitalBeijing 100853China Department of Hematology Chinese PLA General HospitalBeijing 100853China

BACKGROUND Non-Hodgkin’s lymphoma(NHL)can involve extralymphatic organs,resulting in diverse clinical manifestations,especially if the endocrine organs are *** type of involvement can often be difficult to detect *** now,no patients with NHL and concomitant bilateral adrenal and hypothalamic involvement have been *** purpose of this article is to discuss the diagnosis and treatment of lymphoma with bilateral adrenal gland and hypothalamic involvement so as to help physicians avoid misdiagnosis and missed *** SUMMARY We describe a case of a 52-years-old male patient with bilateral adrenal masses,who presented with a fever of unknown origin on ***,hypopituitarism of the anterior pituitary followed by posterior pituitary developed.18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography(PET/CT)showed lesions with a high metabolism in both adrenal glands,hypothalamus,left supraclavicular lymph nodes,and other *** etiological diagnosis was determined based on a left supraclavicular lymph node *** patient,who eventually present with panhypopituitarism,was finally diagnosed with diffuse large B cell lymphoma with bilateral adrenal gland and hypothalamic *** immunochemotherapy,glucocorticoids administration and desmopressin acetate replacement therapy,the symptoms of fever and panhypopituitarism improved,and all the lesions reduced in *** This report demonstrates that,although synchronous involvement of two endocrine organs is rare in NHL,extra caution should be taken when dysfunction occurs in multiple endocrine organs.

关键词： Non-Hodgkin’s lymphoma Bilateral adrenal glands Hypothalamus Panhypopituitarism Case report

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CD147在浸润性乳腺癌分子亚型中的表达与临床意义

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上海交通大学学报（医学版） 2016年第4期36卷 518-522页

作者：叶辉徐明叶曼娜许杰莉汪成上海市黄浦区中心医院外科上海200002 上海市黄浦区中心医院病理科上海200002 上海市黄浦区中心医院乳腺外科上海200002

目的探讨浸润性乳腺癌分子亚型中CD147的表达及临床意义。方法收集251例浸润性乳腺癌患者的临床病理资料,并对各分子亚型进行CD147免疫组织化学检测。结果 CD147在浸润性乳腺癌中阳性表达率为64.10%(161/251),腔面A亚型阳性表达率为29.3... 详细信息

目的探讨浸润性乳腺癌分子亚型中CD147的表达及临床意义。方法收集251例浸润性乳腺癌患者的临床病理资料,并对各分子亚型进行CD147免疫组织化学检测。结果 CD147在浸润性乳腺癌中阳性表达率为64.10%(161/251),腔面A亚型阳性表达率为29.30%(12/41),腔面B亚型阳性表达率为50.00%(35/70),人表皮生长因子受体-2(HER2)阳性亚型阳性表达率为75.00%(42/56),三阴性(TNBC)亚型阳性表达率为85.70%(72/84)。在分子亚型中两两比较结果显示,HER2阳性亚型与TNBC亚型相比较差异无统计学意义(P=0.11),其余各亚型之间差异均有统计学意义(P=0.001)。在临床病理特征中CD147的高阳性表达率与高组织学分级、高临床分期、雌激素受体(ER)阴性及HER2阳性相关。结论 CD147在浸润性乳腺癌分子亚型中的表达与2013年第13届St Gallen国际乳腺癌会议共识相一致,即腔面A亚型内分泌治疗敏感、惰性、预后较好,腔面B亚型内分泌治疗较差、侵袭性较强、预后较差及<40岁女性患者中HER2亚型与TNBC亚型发病率相对较高,预后均较差。CD147抗体的研制有可能在浸润性乳腺癌TNBC亚型的个性化分子靶向治疗上有所帮助。

关键词： CD147 浸润性乳腺癌分子亚型免疫组织化学预后

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新型过氧化氢稳定剂的制备及性能研究

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中国造纸 2024年第2期43卷 119-125页

作者：周宛欣叶文馨杨涛李森森唐璇成西涛西安石油大学化学化工学院陕西西安710065 陕西省石油化工研究设计院陕西西安710054

本研究以马来酸-丙烯酸共聚物(MA-AA)为主体稳定剂,与螯合型助剂复合,制备了新型过氧化氢(H_(2)O_(2))稳定剂,通过测定新型H_(2)O_(2)稳定剂对金属离子的螯合值、H_(2)O_(2)分解率及进行化机浆H_(2)O_(2)漂白实验,研究新型H_(2)O_(2)稳... 详细信息

本研究以马来酸-丙烯酸共聚物(MA-AA)为主体稳定剂,与螯合型助剂复合,制备了新型过氧化氢(H_(2)O_(2))稳定剂,通过测定新型H_(2)O_(2)稳定剂对金属离子的螯合值、H_(2)O_(2)分解率及进行化机浆H_(2)O_(2)漂白实验,研究新型H_(2)O_(2)稳定剂对H_(2)O_(2)漂白的稳定性能,并与进口稳定剂进行比较。结果表明,新型H_(2)O_(2)稳定剂对Fe^(3+)、Mg^(2+)、Mn^(2+)、Ca^(2+)的螯合能力分别达262.3、105.2、141.4、160.3 mg/g;在模拟国内4个地区水质中不同金属离子含量条件下,新型H_(2)O_(2)稳定剂能够有效抑制H_(2)O_(2)分解,具有与进口产品相当的稳定能力。在纸浆漂白工艺条件下,新型H_(2)O_(2)稳定剂在低用量时,对桉木化机浆、杨木化机浆、蔗渣化机浆和芦苇化机浆的漂白均有良好的稳定效果。

关键词：聚合物稳定剂过氧化氢漂白

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