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Review of silicon-based alloys for lithium-ion battery anodes

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International Journal of Minerals,Metallurgy and Materials 2021年第10期28卷 1549-1564页

作者： Zhi-yuan Feng wen-jie Peng Zhi-xing Wang Hua-jun Guo Xin-hai Li Guo-chun Yan jie-xi Wang School of Metallurgy and Environment Central South UniversityChangsha 410083China Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy Central South UniversityChangsha 410083China

Silicon(Si)is widely considered to be the most attractive candidate anode material for use in next-generation high-energy-density lithium(Li)-ion batteries(LIBs)because it has a high theoretical gravimetric Li storage capacity,relatively low lithiation voltage,and abundant ***,massive efforts have been exerted to improve its electrochemical *** some progress in this field has been achieved,a number of severe challenges,such as the element’s large volume change during cycling,low intrinsic electronic conductivity,and poor rate capacity,have yet to be *** to solve these problems have been attempted via the development of nanosized Si ***,reviews summarizing the work on Si-based alloys are ***,the recent progress related to Si-based alloy anode materials is *** problems associated with Si anodes and the corresponding strategies used to address these problems are first ***,the available Si-based alloys are divided into Si/Li-active and inactive systems,and the characteristics of these systems are *** special systems are also ***,perspectives and future outlooks are provided to enable the wider application of Si-alloy anodes to commercial LIBs.

关键词： silicon alloy anode lithium-ion battery

Effects of patients'understanding and choice of surgical types on postoperative outcomes of Peyronie’s disease:a single-center retrospective study of 108 patients

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Asian Journal of Andrology 2021年第5期23卷 484-489页

作者： Da-Chao Zheng jie-wen Bao Jian-Hua Guo Min-Kai Xie wen Ji Li Zhong Wang Department of Urology and Andrology Ninth People's HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200011China

Surgical correction can be considered for treating patients with a chronic phase of Peyronie’s disease(PD)and persistent penile *** clinical practice,some patients pay too much attention to surgical complications and refuse the recommended feasible surgical ***,they require operations according to their *** study aimed to evaluate the effects of patients’own choice of surgical type on postoperative *** retrospective study analyzed data from 108 patients with PD who underwent surgical correction according to doctors’recommendations or patients’own *** objective and subjective surgical outcomes were ***1 understanding of the disease was analyzed using a questionnaire *** measurements of surgical outcomes,including penile straightening,penile length,and sexual function,in patients who received the recommended surgery,were similar to those in patients who did not accept the recommended ***,subjective evaluations,including erectile pain,discomfort because of nodules on the penis,and decreased sensitivity in the penis,were more obvious in patients who did not follow doctors’*** addition,a questionnaire survey showed that understanding PD and the purpose of surgery of patients who did not follow doctors’advice were inappropriate,as they did not conform to the principle of *** present study showed that surgical correction seemed to be an objectively effective option in the management of patients in the stable chronic phase of *** patient satisfaction might be related to patients’lack of correct understanding of the disease and its treatment strategy as well as unrealistic expectations.

关键词： grafting procedure patient’s satisfaction penile curvature Peyronie’s disease plication

Oncogenic tuftelin 1 as a potential molecular-targeted for inhibiting hepatocellular carcinoma growth

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World Journal of Gastroenterology 2021年第23期27卷 3327-3341页

作者： Meng-Na Wu wen-jie Zheng wen-Xin Ye Li Wang Ying Chen jie Yang Deng-Fu Yao Min Yao Research Center of Clinical Medicine The Affiliated Hospital of Nantong UniversityNantong 226001Jiangsu ProvinceChina Department of Medical Immunology Medical School of Nantong UniversityNantong 226001Jiangsu ProvinceChina Department of Medical Informatics Medical School of Nantong UniversityNantong 226001Jiangsu ProvinceChina Department of Oncology The Affiliated Second Hospital of Nantong UniversityNantong 226001Jiangsu ProvinceChina Department of Molecular Biology Life Science School of Nantong UniversityNantong 226009Jiangsu ProvinceChina

BACKGROUND Abnormal tuftelin 1(TUFT1)has been reported in multiple cancers and exhibits oncogenic roles in tumor ***,limited data are available on the relationship between TUFT1 and hepatocellular carcinoma(HCC),and the exact biological mechanism of TUFT1 is still poorly understood in *** To investigate TUFT1 expression in HCC and how interfering TUFT1 transcription affects HCC *** TUFT1 in HCC and non-HCC tissues based on databases of the Cancer Genome Atlas and Oncomine were analyzed,and TUFT1 in human HCC tissues on microarray were detected by immunohistochemistry for clinicopathological features,overall survival,and disease-free *** cells were transfected with constructed vectors of TUFT1 that interfere or over-express TUFT1 for analyzing the biological behaviors of HCC ***,invasion,migration,and apoptosis of cells were detected by cell counting kit-8,scratch assay,transwell tests,and flow cytometry and confirmed by Western blotting,*** Abnormal TUFT1 levels in databases expressed in HCC at messenger RNA(mRNA)level and HCC tissues were mainly located in cytoplasm and *** level of TUFT1 expression in the HCC group was significantly higher(χ2=18.563,P<0.001)than that in the non-cancerous group,closely related to clinical staging,size,vascular invasion of tumor,hepatitis B e-antigen positive,and ascites(P<0.01)of HCC patients,and negatively to HCC patients’overall survival and disease-free survival(P<0.001).After interfering with TUFT1 transcription at mRNA level in the MHCC-97H cells by the specific TUFT1-short hairpin RNA,cell proliferation,invasion,and metastasis were significantly inhibited with increasing apoptosis *** contrast,proliferation,invasion,and migration were significantly enhanced after over-expression of TUFT1 mRNA in Hep3B cells in *** Oncogenic TUFT1 was associated with the progression of HCC and could be a potential molecular-target for inhibiting

关键词： Hepatocellular carcinoma Tuftelin 1 Prognosis Molecular-target Growth

Effect of Precipitation on Hot Deformation Behavior and Processing Maps of Nickel-Base UNS N10276 Alloy

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Acta Metallurgica Sinica(English Letters) 2017年第11期30卷 1119-1134页

作者： En-Xiang Pu wen-jie Zheng Zhi-Gang Song Han Feng Han Dong School of Materials Science and Engineering Tsinghua University Beijing 100084 China Central Iron and Steel Research Institute Beijing 100081China

The hot deformation characteristics and processing maps of aged nickel-base UNS N10276 alloy were inves- tigated and compared with those of solution-treated UNS N10276 alloy at temperatures of 950-1250 ℃ and strain rates between 0.01 and 10 s-1. The dominant precipitated phase in the aged alloy was identified as topologically close-packed （TCP） # phase enriched in Mo and Ni. The precipitates present in the UNS N10276 alloy could significantly facilitate flow softening after peak stress at temperatures lower than 1150 ℃ and strain rates higher than 0.01 s-1. Processing maps at true strains of 0.1-0.9 were developed using the dynamic materials model and experimental flow stress data. Although aging treatment slightly shrank the suitable hot working window of this alloy, the aged alloy showed higher peak efficiencies of power dissipation and smaller unstable regions in comparison with solution-treated alloy. Furthermore, aging treatment eliminated the instability region of processing maps at true strains of 0.2-0.5. The precipitated phase promoted dynamic recrystallization （DRX） by the particle-stimulated nucleation （PSN） mechanism, which resulted in the larger fraction of DRX as well as finer and more uniform grain structure in the aged alloy specimens compared to the solution-treated alloy.

关键词： UNS N10276 alloy Precipitation Hot deformation Processing map

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生物炭表面NO吸附特性的量子化学研究

原子与分子物理学报 2025年第5期42卷 7-16页

作者：朱世遥薛婕雯张雨轩陈斌武卫东上海理工大学上海200093 上海工程技术大学城市轨道交通学院上海201620 上海交通大学机械与动力工程学院上海200240

生物炭表面具有丰富的官能团,通过化学吸附可以与一氧化氮(NO)分子形成稳定化学键,廉价易得且环境适应性强,具有广阔的应用前景.然而,当前对生物炭表面NO吸附特性的研究大多仍停留在宏观层面,缺乏深入的微观机制解析.本文基于密度泛函理... 详细信息

生物炭表面具有丰富的官能团,通过化学吸附可以与一氧化氮(NO)分子形成稳定化学键,廉价易得且环境适应性强,具有广阔的应用前景.然而,当前对生物炭表面NO吸附特性的研究大多仍停留在宏观层面,缺乏深入的微观机制解析.本文基于密度泛函理论,深入研究了生物炭表面一氧化氮(NO)的吸附转化路径,从分子层面揭示了生物炭对NO的吸附特性.研究结果显示,N-down型吸附构型的能量普遍低于O-down型吸附构型,是较为可能的吸附构型,并且含氧原子的官能团在NO的吸附和氨(NH_(3))的形成过程中扮演着关键角色.此外,通过对N-down型构型的进一步分析发现,在与活性位点结合后,NO将优先取代羟基,最终在生物质焦炭表面转化为NH_(3).同时,基于变分过渡态理论(CVT)计算了反应速率,发现NO优先反应的途径将受到不同区域内反应速率的限制.本文通过量子化学方法深入揭示了生物炭表面NO吸附特性的微观机制,为优化生物炭在NO治理中的应用提供了理论支持.

关键词：吸附生物炭密度泛函理论

Periodic Solutions to an Evolution p-Laplacian System

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Journal of Mathematical Research and Exposition 2010年第3期30卷 390-398页

作者： Ying jie WEI wen jie GAO Institute of Mathematics Jilin University Jilin 130012 P. R. China

In this paper, the authors study the existence of periodic solutions to an evolution p-Laplacian system. The authors prove a comparison principle of the system in general form. Then the existence of periodic solutions to the system of evolution p-Laplacian equations is obtained with the help of the comparison principle and the monotone iteration technique.

关键词： existence periodic solutions p-Laplacian system.

Selenium-induced Changes in Activities of Antioxidant Enzymes and Content of Photosynthetic Pigments in Spirulina platensis

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Journal of Integrative Plant Biology 2008年第1期50卷 40-48页

作者： Tian-Feng Chen wen-jie Zheng Yum-Shing Wong Fang Yang Department of Biology The Chinese University of Hong Kong Hong Kong SAR China Department of Chemistry Jinan University Guangzhou 510632 China

Spirulina platensis exposed to various selenium （Se） concentrations （0, 10, 20, 40, 80, 150, 175, 200, 250 mg/L） accumulated high amounts of Se in a dose- and time-dependent manner. Under low Se concentrations （〈150 mg/L）, Se induced increases in biomass concentration, content of photosynthetic pigments, and activities of glutathione peroxidase （GPX）, superoxide dismutase （SOD）, catalase （CAT） and Gua-dep peroxidases （POD）, which indicates that antioxidant enzymes play an important role in protecting cells from Se stress. Higher Se concentrations （≥175 mg/L） led to higher Se accumulation and increases in activities of GPX, SOD, CAT and POD, but also induced lipid peroxidation （LPO） coupled with potassium leakage and decreases in biomass concentration and contents of photosynthetic pigment. The results indicate that increases in activities of the antioxidant enzymes were not sufficient to protect cell membranes against Se stress. Time-dependent variations in the activities of antioxidant enzymes, contents of chlorophyll a and carotenoid and the LPO level were also investigated under representative Se concentrations of 40 and 200mg/L. Opposite variation trends between SOD-CAT activities, and GPX-POD-APX activities were observed during the growth cycles. The results showed that the prevention of damage to cell membranes of S. platensis cells could be achieved by cooperative effects of SOD-CAT and GPX-POD-APX enzymes. This study concludes that S. platensis possessed tolerance to Se and could protect itself from phytotoxicity induced by Se by altering various metabolic processes.

关键词： accumulation antioxidant enzymes photosynthetic pigments selenium Spirulina platensis.

Ectopic pregnancy and failed oocyte retrieval during in vitro fertilization stimulation:Two case reports

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World Journal of Clinical Cases 2022年第28期10卷 10310-10316页

作者： wen-jie Zhou Bu-Fang Xu Zhi-Hong Niu Department of Obstetrics and Gynecology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China

BACKGROUND Due to a slight rise in beta-human chorionic(β-h CG)levels that are undetectable,and vaginal bleeding that is similar to regular menstruation,ectopic pregnancy(EP)that occurs during the expected menstrual cycle prior to ovulation induction as part of in vitro fertilization(IVF)is likely to be *** present two cases of unexpected EP and emphasize the importance of theβ-h CG assay when an unexplained increase in progesterone is present prior to the triggering of ovulation during controlled ovarian stimulation(COS).CASE SUMMARY A 26-year-old woman with primary infertility and a 31-year-old woman with secondary *** patients sought IVF treatment due to fallopian tube obstruction and underwent COS using the gonadotropin-releasing-hormone(Gn RH)-antagonist *** the late stage of COS,progesterone levels in both patients significantly increased,and luteinizing hormone levels decreased,followed by oocyte retrieval failure.A right salpingectomy was performed and tubal ectopic pregnancy was diagnosed by pathology in the first patient,and the second patients was diagnosed with a suspected EP abortion because herβ-h CG levels declined to 12.5 m IU/m *** full recovery for 2 mo,the first patient entered a new IVF treatment cycle with a Gn RH-antagonist regimen and successfully achieved eight oocytes and three viable *** 6 mo,the second patient received another COS treatment with a progestin-primed ovarian stimulation protocol and successfully achieved nine oocytes and five viable ***β-h CG levels in the initial and midterm phases of COS must be considered in patients with unusual hormone dynamics.

关键词： Infertility Ectopic pregnancy In vitro fertilization Ovarian induction Case report

Variation in photosynthetic photon flux density within a tropical seasonal rain forest of Xishuangbanna, south-western China

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Journal of Environmental Sciences 2005年第6期17卷 966-969页

作者： DOU Jun-xia ZHANG Yi-ping FENG Zong-wei LIU wen-jie Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Kunming 650223 China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China The Graduate School of the Chinese Academy of Sciences Beijing 100039 China

The effects of canopy development, solar angle, and weather conditions on temporal variation in photosynthetic photon flux density（PPFD） at three heights within a tropical rain forest canopy in Xishuangbanna, China, were examined. PPFD was measured every second and stored as 10-min averages from 1 December 2002 to 30 November 2003. PPFD variability was examined at three different temporal scales. Specific days in March, September, and December with clear and overcast sky conditions were selected to separate the effects of leaf area index（LAI） and solar angle on diurnal variability. On both clear and overcast days, mean daily average PPFD was significantly different between March and September at all heights, except 10 m on clear days, suggesting that LAI directly influences PPFD. In contrast, the differences in daily average PPFD among three heights between September and December were likely due to variation in solar angle. In addition, daily average PPFD at all locations were significantly lower under overcast than clear sky conditions in March, September and December. Over the year-long study, the mean daily total PPFD at 2! m, 10 m and 4 m was 2.8, 2.7 and 0.7 mol/（m^2·d）, which accounted for 9.7%, 9.4% and 2.4% of the daily PPFD above the canopy, respectively. Significant differences in mean daily total PPFD occurred at the same heights among different seasons, and diurnal, day-to-day and seasonal PPFD varied at different heights within the canopy. The possible effects of light variability on physiological and morphological responses of plants are discussed.

关键词： photosynthetic photon flux density temporal light variability tropical seasonal rain forest canopy Xishuangbanna