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125篇 您的检索式:作者名="Shuo Han"
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1Anisotropic coding metamaterials and their powerful manipulation of differently polarized terahertz waves显示文摘Metamaterials based on effective media can be used to produce a number of unusual physical properties(for example,negative refraction and invisibility cloaking)because they can be tailored with effective medium parameters that do not occur in nature.Recently,the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements‘0’and‘1,'which possess opposite phase responses.Here we propose the concept of an anisotropic coding metamaterial in which the coding behaviors in different directions are dependent on the polarization status of the electromagnetic waves.We experimentally demonstrate an ultrathin and flexible polarization-controlled anisotropic coding metasurface that functions in the terahertz regime using specially designed coding elements.By encoding the elements with elaborately designed coding sequences(both 1-bit and 2-bit sequences),the x-and y-polarized waves can be anomalously reflected or independently diffused in three dimensions.The simulated far-field scattering patterns and near-field distributions are presented to illustrate the dual-functional performance of the encoded metasurface,and the results are consistent with the measured results.We further demonstrate the ability of the anisotropic coding metasurfaces to generate a beam splitter and realize simultaneous anomalous reflections and polarization conversions,thus providing powerful control of differently polarized electromagnetic waves.The proposed method enables versatile beam behaviors under orthogonal polarizations using a single metasurface and has the potential for use in the development of interesting terahertz devices.Shuo Liu Tie Jun Cui Quan Xu Di Bao Liangliang Du Xiang Wan Wen Xuan Tang Chunmei Ouyang Xiao Yang Zhou Hao Yuan Hui Feng Ma Wei Xiang Jiang Jiaguang Han Weili Zhang Qiang Cheng 2016Light(Science & Applications)2016,5,1:36
2Acanthopanax senticosus polysaccharides-induced intestinal tight junction injury alleviation via inhibition of NF-κB/MLCK pathway in a mouse endotoxemia model显示文摘AIM To examine the effects of Acanthopanax senticosus polysaccharides(ASPS) on intestinal tight junction(TJ) disruption and nuclear factor-kappa B(NF-κB)/myosin light chain kinase(MLCK) activation in endotoxemia.METHODS BALB/C mice(6-8-weeks-old) received continuous intragastric gavage of ASPS for 7 d before injection of lipopolysaccharide(LPS), or received ASPS once after LPS injection. Blood and intestinal mucosal samples were collected 6 h after LPS challenge. Clinical symptoms, histological injury, intestinal permeability,TJ ultrastructure, and TJ protein expression were determined.RESULTS Compared with mice in the LPS group, pretreatment with ASPS improved clinical and histological scores by 390.9%(P < 0.05) and 57.89%(P < 0.05), respectively, and gut permeability change in endotoxemic mice was shown by a 61.93% reduction in reduced leakage of fluorescein isothiocyanate-dextran 6 h after LPS injection(P < 0.05). ASPS pretreatment also prevented LPS-induced TJ ultrastructure breakdown supported by increased electron dense materials between adjoining cells, sustained redistribution and expression of occludin(0.597 ± 0.027 vs 0.103 ± 0.009, P < 0.05) and zonula occludens-1(0.507 ± 0.032 vs 0.125 ± 0.019, P < 0.05), and suppressed activation of the NF-κB/MLCK pathway indicated by reduced expression of NF-κB, phospho-inhibitor kappa B-alpha, MLCK and phospho-myosin light-chain-2 by 16.06%(P < 0.05), 54.31%(P < 0.05), 66.10%(P < 0.05) and 64.82%(P < 0.05), respectively. CONCLUSION ASPS pretreatment may be associated with inhibition of the NF-κB/MLCK pathway and concomitant amelioration of LPS-induced TJ dysfunction of intestinal epithelium in endotoxemia.Jie Han Ji-Hong Li Guang Bai Guo-Shun Shen Jing Chen Jia-Nan Liu Shuo Wang Xian-Jun Liu 2017World Journal of Gastroenterology2017,23,12:11
3Chimeric antigen receptor (CAR)-modified natural killer cell-based immunotherapy and immunological synapse formation in cancer and HIV显示文摘Dongfang Liu Shuo Tian Kai Zhang Wei Xiong Ndongala Michel Lubaki Zhiying Chen Weidong Han 2017Protein & Cell2017,8,12:11
4Imaging through unknown scattering media based on physics-informed learning显示文摘Imaging through scattering media is one of the hotspots in the optical field, and impressive results have been demonstrated via deep learning(DL). However, most of the DL approaches are solely data-driven methods and lack the related physics prior, which results in a limited generalization capability. In this paper, through the effective combination of the speckle-correlation theory and the DL method, we demonstrate a physics-informed learning method in scalable imaging through an unknown thin scattering media, which can achieve high reconstruction fidelity for the sparse objects by training with only one diffuser. The method can solve the inverse problem with more general applicability, which promotes that the objects with different complexity and sparsity can be reconstructed accurately through unknown scattering media, even if the diffusers have different statistical properties. This approach can also extend the field of view(FOV) of traditional speckle-correlation methods. This method gives impetus to the development of scattering imaging in practical scenes and provides an enlightening reference for using DL methods to solve optical problems.SHUO ZHU ENLAI GUO JIE GU LIANFA BAI JING HAN 2021Photonics Research2021,9,5:10
5Defined tumor antigen-specific T cells potentiate personalized TCR-T cell therapy and prediction of immunotherapy response显示文摘Personalized immunotherapy targeting tumor-specific antigens(TSAs)could generate efficient and safe antitumor immune response without damaging normal tissues.Although neoantigen vaccines have shown therapeutic effect in clinic trials,precise prediction of neoantigens from tumor mutations is still challenging.The host antitumor immune response selects and activates T cells recognizing tumor antigens.Hence,T cells engineered with T-cell receptors(TCRs)from these naturally occurring tumor antigen-specific T(Tas)cells in a patient will target personal TSAs in his/her tumor.To establish such a personalized TCR-T cell therapy,we comprehensively characterized T cells in tumor and its adjacent tissues by single-cell mRNA sequencing(scRNA-seq),TCR sequencing(TCR-seq)and in vitro neoantigen stimulation.Compared to bystander T cells circulating among tissues,Tas cells were characterized by tumor enrichment,tumor-specific clonal expansion and neoantigen specificity.We found that CXCL13 is a unique marker for both CD4^(+)and CD8^(+)Tas cells.Importantly,TCR-T cells expressing TCRs from Tas cells showed significant therapeutic effects on autologous patient-derived xenograft(PDX)tumors.Intratumoral Tas cell levels measured by CXCL13 expression precisely predicted the response to immune checkpoint blockade,indicating a critical role of Tas cells in the antitumor immunity.We further identified CD200 and ENTPD1 as surface markers for CD4^(^(+))and CD8^(^(+))Tas cells respectively,which enabled the isolation of Tas cells from tumor by Fluorescence Activating Cell Sorter(FACS)sorting.Overall,our results suggest that TCR-T cells engineered with Tas TCRs are a promising agent for personalized immunotherapy,and intratumoral Tas cell levels determine the response to immunotherapy.Jingjing He Xinxin Xiong Han Yang Dandan Li Xuefei Liu Shuo Li Shuangye Liao Siyu Chen Xizhi Wen Kuai Yu Lingyi Fu Xingjun Dong Kaiyu Zhu Xiaojun Xia Tiebang Kang Chaochao Bian Xiang Li Haiping Liu Peirong Ding Xiaoshi Zhang Zhenjiang Liu Wende Li Zhixiang Zuo Penghui Zhou 2022Cell Research2022,32,6:10
6Development of the personalized criteria for microscopic review following four different series of hematology analyzer in a Chinese large scale hospital显示文摘CUI Wei WU Wei WANG Xin WANG Geng HAO Ying-ying CHEN Yu LUO Dan SHOU Wei-ling ZHANG Shuo XIANG Xue-fang SI Yong-zhen CHEN Qian CAI Hao LI Tan SHEN Han SHANG Kun ZHANG Yong-qiang 2010Chinese Medical Journal2010,,22:10
7Mechanism of multidrug resistance of human small cell lung cancer cell line H446/VP显示文摘背景小房间肺癌症(SCLC ) 是肺癌症的最好攻击的形式。这研究试图调查人的小房间肺癌症房间线抵抗的机制到 etoposide (VP-16 ) , H446/VP.Methods 房间生存能力被 M 测量试金。 Immunocytochemistry ,反向的抄写聚合酶链反应( RT-PCR )和西方的弄污方法被用来检测 multidrug 抵抗基因( MDR1 ), bcl-2 , bax 和 topoisomerase ( Topo )在 H446 和 H446/VP 房间的表情在对待与或没有 VP-16.Results 以后, H446 房间上的 VP-16 的50%抑制集中( IC50 )是 49 mg/L ,并且 836 mg/L 为 H446/VP 房间。MDR1 和 bcl-2 的表情是起来调整的,当 bax 和 Topo 的数量在 H446/VP 房间被减少时。在与 VP-16 的 49 mg/L 对待以后,它证明这药能显著地与 H446/VP 房间是的 H446/VP cells.Conclusions 的相比在 H446 房间禁止 bcl-2 和 Topo 表情,和增加 bax 表示对 VP-16 稳定地抵抗。Topo 的减少的表示与 H446/VP multidrug 抵抗被相关。MDR1 的提高的表情,和改变的 apoptotic 小径也在 VP-16 起了一个重要作用 SCLC 的导致的 multidrug 抵抗。WANG Yan-ling YAN Yun-li ZHOU Na-jing HAN Shuo ZHAO Jun-xia CAO Cui-li LUE Yu-hong 2010Chinese Medical Journal2010,,22:9
8SARS-CoV-2 infects human neural progenitor cells and brain organoids显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)caused by the novel severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)1 has resulted in over 13 million confirmed cases and more than 580,045 deaths across 218 countries and geographical regions as of July 16,2020.This novel coronavirus primarily causes respiratory illness with clinical manifestations largely resembling those of SARS.However,neurological symptoms including headache,anosmia,ageusia,confusion,seizure,and encephalopathy have also been frequently reported in COVID-19 patients.Bao-Zhong Zhang Hin Chu Shuo Han Huiping Shuai Jian Deng Ye-fan Hu Hua-rui Gong Andrew Chak-Yiu Lee Zijiao Zou Thomas Yau Wutian Wu Ivan Fan-Ngai Hung Jasper Fuk-Woo Chan Kwok-Yung Yuen Jian-Dong Huang 2020Cell Research2020,30,10:8
9Cloud Computing-Based Forensic Analysis for Collaborative Network Security Management System显示文摘Internet security problems remain a major challenge with many security concerns such as Internet worms, spam, and phishing attacks. Botnets, well-organized distributed network attacks, consist of a large number of bots that generate huge volumes of spam or launch Distributed Denial of Service (DDoS) attacks on victim hosts. New emerging botnet attacks degrade the status of Internet security further. To address these problems, a practical collaborative network security management system is proposed with an effective collaborative Unified Threat Management (UTM) and traffic probers. A distributed security overlay network with a centralized security center leverages a peer-to-peer communication protocol used in the UTMs collaborative module and connects them virtually to exchange network events and security rules. Security functions for the UTM are retrofitted to share security rules. In this paper, we propose a design and implementation of a cloud-based security center for network security forensic analysis. We propose using cloud storage to keep collected traffic data and then processing it with cloud computing platforms to find the malicious attacks. As a practical example, phishing attack forensic analysis is presented and the required computing and storage resources are evaluated based on real trace data. The cloud-based security center can instruct each collaborative UTM and prober to collect events and raw traffic, send them back for deep analysis, and generate new security rules. These new security rules are enforced by collaborative UTM and the feedback events of such rules are returned to the security center. By this type of close-loop control, the collaborative network security management system can identify and address new distributed attacks more quickly and effectively.Zhen Chen Fuye Han Junwei Cao Xin Jiang Shuo Chen 2013Tsinghua Science and Technology2013,18,1:8
10Four new observational H(z) data from luminous red galaxies in the Sloan Digital Sky Survey data release seven显示文摘By adopting the differential age method,we select 17 832 luminous red galaxies from the Sloan Digital Sky Survey Data Release Seven covering redshift0 < z < 0.4 to measure the Hubble parameter.Using the full spectrum fitting package UlySS,these spectra are reduced with single stellar population models and optimal age information from our selected sample is derived.With the decreasing age-redshift relation,four new observational H{z) data(OHD) points are obtained,which are H{z) = 69.0± 19.6km s^(-1) Mpc^(-1) at z = 0.07,H(z) = 68.6 ±26.2 km s^(-1) Mpc^(-1)at z = 0.12,H(z)=72.9 ± 29.6 km s^(-1) Mpc^(-1) at z = 0.2 and H{z)=88.8 ± 36.6 km s^(-1) Mpc^(-1) at z = 0.28,respectively.Combined with 21 other available OHD data points,the performance of the constraint on both flat and non-flat ACDM models is presented.Cong Zhang Han Zhang Shuo Yuan Siqi Liu Tong-Jie Zhang Yan-Chun Sun 2014Research in Astronomy and Astrophysics2014,14,10:6
11One-dimensional photonic bandgap structure in abalone shell显示文摘LI Bo ZHOU Ji LI Longtu LI Qi HAN Shuo HAO Zhibiao 2005Chinese Science Bulletin2005,50,14:6
12A new distinct geminivirus causes soybean stay-green disease显示文摘Dear Editor,Plant viruses make up almost half of the plant disease-causing pathogens,affecting crop yields and the global economy(Savary et al.,2019).Soybean(Glycine max)is one of the most valuable legume crops in the world,supplying 25%of the global edible oil and two-thirds of the global concentrated protein for livestock feeding.Recently,the outbreak of soybean stay-green syndrome with delayed leaf senescence(stay-green),flat pods,and increased number of abnormal seeds has swept the soybean production in the Huang-Huai-Hai region of China,resulting in huge yield losses(Xu et al.,2019).This disease has become an epidemic and prominent problem in soybean production and is still expanding its geography,including North America,posing a serious threat to soybean production(Harbach et al.,2016;Zhang et al.,2016;Li et al.,2019).However,the cause of soybean stay-green syndrome remains obscure.Ruixiang Cheng Ruoxin Mei Rong Yan Hongyu Chen Dan Miao Lina Cai Jiayi Fan Gairu Li Ran Xu Weiguo Lu Yu Gao Wenwu Ye Shuo Su Tianfu Han Junyi Gai Yuanchao Wang Xiaorong Tao Yi Xu 2022Molecular Plant2022,15,6:6
13用于非线性非平稳船舶运动极短期预报的一种复合自回归经验模态分解支持向量机回归模型(英文)显示文摘目的:基于支持向量机回归(SVR)模型在非线时间序列的预测能力及经验模态分解(EMD)方法在处理非线性非平稳性的优势,提出一种复合自回归经验模态分解支持向量机回归(AR-EMDSVR)模型,提高非线性非平稳船舶运动极短期预报精度。创新点:1.研究非线性非平稳船舶运动的极短期预报问题,提出一种复合的预报方法;2.基于不同层次的预报模型和模型试验数据,分析非线性非平稳性对极短期预报精度的影响。方法:1.在SVR模型中引入基于自回归(AR)预报端点延拓的EMD方法,形成复合的AR-EMDSVR预报模型;2.基于集装箱船模水池试验运动数据将AR-EMD-SVR模型与AR、SVR和EMD-AR三种模型进行比较,分析非线性非平稳性对极短期预报的影响以及不同模型的预报性能。结论:1.AR-EMD方法能够有效的克服非平稳对极短期预报模型(AR和SVR)在精度上所带来的不良影响;2.基于船模试验数据的预报结果表明:相较于AR、SVR和EMD-AR三种预报模型,基于AR-EMD-SVR模型的非线性非平稳船舶运动极短期预报结果具有更高的精度。Wen-yang DUAN Li-min HUANG Yang HAN Ya-hui ZHANG Shuo HUANG 2015Journal of Zhejiang University-Science A(Applied Physics & Engineering)2015,16,7:6
14Collagen derived species-specific peptides for distinguishing donkey-hide gelatin(Asini Corii Colla)显示文摘Objective:As an important food therapy product with traditional Chinese medicine(TCM) applications,donkey-hide gelatin(Asini Corii Colla,ACC) has been used for thousands of years.However,till now few effective strategy had been proposed to distinguish ACC from other animal hide gelatins,especially closely related horse-and mule-hide gelatins,which was an embarrassment of ACC quality control.Methods:Combined mass spectrometry and bioinformatic methods have been applied to identify and verify two ACC-specific peptides(Pep-1 and Pep-2) capable of distinguishing ACC from other closely related animal gelatins with high selectivity.Results:It confirmed that these two peptides could be not only used for distinguishing ACC from highly homologous horse-hide and mule-hide gelatins as well as other animal hide gelatins.Conclusion:The present study provides a simple method for species-specific peptides discovery,which can be used for assessing the quality of animal gelatin products,and ensure they are authenticable and traceable.Shuo Cai Ke-xuan Zhao Meng-tong Jiang Shu-ying Han Yun-feng Zheng Xun Liu Ming Zhao Jin-ao Duan Rui Liu 2021Chinese Herbal Medicines2021,13,2:5
15The tumor therapeutic potential of long non-coding RNA delivery and targeting显示文摘Long non-coding RNAs(lncRNAs)is a type of RNA over 200 nt long without any protein coding ability,which has been investigated relating to crucial biological function in cells.There are many key lncRNAs in tumor/normal cells that serve as a biological marker or a new target for tumor treatment.However,compared to some small non-coding RNA,lncRNA-based drugs are limited in clinical application.Different from other non-coding RNA,like microRNAs,most lncRNAs have a high molecular weight and conserved secondary structure,making the delivery of lncRNAs more complex than the small non-coding RNAs.Considering that lncRNAs constitute the most abundant part of the mammalian genome,it is critical to further explore lncRNA delivery and the subsequent functional studies for potential clinical application.In this review,we will discuss the function and mechanism of lncRNAs in diseases,especially cancer,and different approaches for lncRNA transfection using multiple biomaterials.Shuo Han Xinru Chen Leaf Huang 2023Acta Pharmaceutica Sinica B2023,13,4:5
16Safety and effectiveness of Traditional Chinese Medicinal herbs for diabetic foot:a systematic review and Meta-analysis显示文摘OBJECTIVE: To evaluate the safety and effectiveness of traditional Chinese medicinal herbs(TCMHs) as an adjunctive treatment for diabetic foot(DF).METHODS: The sources used were Pub Med(1966 to August 2015), the Cochrane Library(1988 to August 2015), the Excerpta Medica Database(1974 to August 2015), Wiley(1807 to August 2015), Ovid(1988 to August 2015), Clinical Trials.gov(1993 to August 2015), the Cochrane Central Register of Controlled Trials(1966 to August 2015), China Science and Technology Journal Database(1994 to August2015), Chi CTR(2007 to August 2015), Sino Med(1978 to August 2015), the China National Knowledge Infrastructure(1984 to August 2015), Wanfang Data Knowledge Service Platform(1998 to August 2015), and the Traditional Chinese Medical Literature Analysis and Retrieval System(TCMLARS)(1984 to August 2015). Studies were identified and selected, and the data were extracted by two independent reviewers. The Cochrane Risk of Bias tool was used to assess the quality of studies. Revman 5.2 software was used for data synthesis and analysis.RESULTS: Sixteen studies were included based on the selection criteria. Of these, seven studies had low bias risk and one had high bias risk. In the overall analysis, TCMHs resulted in a significantly higher total effective rate(OR 5.08; 95% CI 3.50 to7.36; P < 0.000 01), cure rate(OR 2.12; 95% CI1.63 to 2.77; P < 0.000 01), and shorter time to ulcer healing(SMD-0.64; 95% CI-0.89 to-0.40;P < 0.000 01) when compared with non-TCMHs treated DF. The analysis also revealed that significantly fewer amputations occurred in TCMHs patients(OR 0.36; 95% CI 0.20 to 0.65; P = 0.0007).Sensitivity analysis indicated that the findings of the Meta-analysis were robust to study quality,and the funnel plot of the Egger test showed no publication bias.CONCLUSION: TCMHs intervention appears to be more effective for DF, with a similar safety profile,when compared with non-TCMHs treatments, although this result requires further verification with more well-designed studies.Chen Shuo Ma Jianwei Xu Limei Niu Tianhui Dong Jing Liu Wenjun Han Qi 2017Journal of Traditional Chinese Medicine2017,37,6:5
17Effect of direct current pulse stimulating acupoints of JiaJi (T10-L3) and Ciliao (BL 32) with Han's Acupoint Nerve Stimulator on labour pain in women: a randomized controlled clinical study显示文摘OBJECTIVE: To assess the clinical effect and safety of direct current(DC) pulse produced by Han's Acupoint Nerve Stimulator in reduction(HANS) of labor pain.METHODS: Totally 120 participants were enrolled in this clinical trial, and were randomly divided into4 groups including: HANS group, patient controlled intravenous analgesia(PCIA) group, patient-controlled epidural analgesia(PCEA) group and control group. The HANS group was treated by stimulating the acupoints of Jia Ji(T10-L3) and Ciliao(BL 32)with DC pulse of 100 Hz and 15-30 m A produced by a portable battery-powered Han's Acupoint Nerve Stimulator for 30 min. The PCIA group was intravenously infused Ondansetron(8 mg) for 5 min,then tramadol injection(1.5 mg/kg) was slowly dripped by using Baxter APⅡ electronic pump with50 m L tramadol(0.70%) + ondansetron(8 mg),background infusion 2 m L/h, PCA dose of 2 m L,lockout interval of 10 min. In PCEA group, women received intrathecal injection ropivacaine(3 mg) in L2-3, and epidural catheter was connected to Baxter APⅡ electronic pump, with 100 m L Ropivacaine(0.1%) and Sufentanil(50 ug), background infusion5 m L, Patient controlled analgesia(PCA) dose of 5m L, lockout interval of 10 min. The control group was not received analgesia. The visual analogue scale(VAS), stage and manner of labor, Apgar score of newborn, neonatal weights, oxytocin dosage,postpartum hemorrhage and side effects were monitored in all groups.RESULTS: The vital signs were all stable in the four analgesic groups. After analgesia, there was statistical difference in VAS score between HANS group and control group, between PCEA group and the control group, between PCIA group and control group. The analgesic effect in the PCEA group was significantly better than that of other two groups.The second stage of labor in the PCEA group was longer than the other three groups, showing significant difference between them. The Apgar score of newborn 1min after birth in the PCIA group was slightly lower than that of the other two groups,showing significant difference between them. The neonatal weights between four groups were not significantly different. The rate of cesarean sectionin the control group was significantly higher than that of the labor analgesia group, there was statistically difference in four groups. The number of PCIA group that used oxytocin was lower than that of other three groups. There was no significant difference in postpartum hemorrhage between four groups. The side effects of the PCEA group were itching, uroschesis and neonatal asphyxia and PCIA group were nausea and vomiting and neonatal asphyxia. However, fewer side effects were observed in the HANS group.CONCLUSION: The DC pulse produced by HANS may be a non-pharmacological alternative to labor pain with fewer side effects.Liu Ye Xu Mingjun Che Xiangming He Junqin Guo Dandan Zhao Guosheng Zhang Guogang Zhang Shuo Kang Kai Zhang Chunlei Wang Yinan Li Shan Zhang Qinglin Xu Li Zhang Ming Han Bin Jing Yumiao Zhang Ning 2015Journal of Traditional Chinese Medicine2015,35,6:4
18A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai–Tibetan Plateau显示文摘Alpine grassland is the typical vegetation in the eastern Qinghai–Tibetan Plateau,which has important ecological service functions,and also supports the development of alpine stock farming.In recent years,under both the natural and human disturbance,alpine grasslands in this area have appeared to different degrees of desertification.A diagnosis of the desertification degree serves as the basis for grassland ecological restoration.This study constructs a comprehensive index based on remote sensing called alpine grassland desertification index(AGDI)to monitor the areas and degree of desertification.The most relevant indicators of desertification,namely,vegetation fraction,aboveground biomass,soil moisture,and land surface temperature,were selected to establish AGDI.The geographical detector is used to reselect and assess these indicators.The results show that the overall verification accuracy of AGDI is 82.05%.In particular,the accuracy of identifying severe desertification is the highest.Our study confirms that the desertification of alpine grasslands in the eastern Qinghai–Tibetan Plateau is characterized by fragmentation.Thus,Landsat-8 OLI data with a spatial resolution of 30 m is more suitable than MODIS data for alpine grasslands desertification monitoring.The research results can provide a methodological reference for monitoring desertification of alpine grasslands and other grassland regions in the world.KUANG Qian YUAN Quan-zhi HAN Ji-chong LENG Rong WANG Yu-shuang ZHU Ke-hong LIN Shuo REN Ping 2020Journal of Mountain Science2020,17,6:4
19Si/C particles on graphene sheet as stable anode for lithium-ion batteries显示文摘Silicon is considered as one of the most promising anodes for Li-ion batteries(LIBs), but it is limited for commercial applications by the critical issue of large volume expansion during the lithiation. In this work, the structure of silicon/carbon(Si/C) particles on graphene sheets(Si/C–G) was obtained to solve the issue by using the void space of Si/C particles and graphene. Si/C–G material was from Si/PDA-GO that silicon particles was coated by polydopamine(PDA) and reacted with oxide graphene(GO). The Si/C–G material have good cycling performance as the stability of the structure during the lithiation/dislithiation.The Si/C–G anode materials exhibited high reversible capacity of 1910.5 mA h g^(-1) and 1196.1 mA h g^(-1) after 700 cycles at 357.9 m A g^(-1), and have good rate property of 507.2 mA h g^(-1) at high current density,showing significantly improved commercial viability of silicon electrodes in high-energy-density LIBs.Jian Han Xiaonan Tang Shaofan Ge Ying Shi Chengzhi Zhang Feng Li Shuo Bai 2021Journal of Materials Science & Technology2021,,21:4
20Kinetics of enhanced adsorption by polarization for organic pollutants on activated carbon fiber显示文摘The adsorption kinetics for model pollutants on activated carbon fiber(ACF)by polarization was investigated in this work.Kinetics data obtained for the adsorption of these model pollutants at open-circuit,400 mV,and−400 mV polarization were applied to the Lagergren equation,and adsorption rate constants(Ka)were determined.With the anodic polarization of 400 mV,the capacity of sodium phenoxide was increased from 0.0083 mmol/g at open-circuit to 0.18 mmol/g,and a 17-fold enhancement was achieved;however,the capacity of p-nitrophenol was decreased from 2.93 mmol/g at open-circuit to 2.65 mmol/g.With the cathodal polarization of−400 mV,the capacity of aniline was improved from 3.60 mmol/g at open-circuit to 3.88 mmol/g;however,the capacity of sodium dodecylben-zene sulfonate was reduced from 2.20 mmol/g at open-circuit to 1.59 mmol/g.The enhancement for electrosorption changed with dif ferent groups substituting.Anodic polarization enhances the adsorption of benzene with the electron-donating group.But whether anodic or not,cathodal polariza-tion had less effect on the adsorption of electron-accepting aromatic compounds,and decreased the adsorption capacity of benzene-bearing donor-conjugate bridge-acceptor,while increasing its adsorption rate.Electrostatic interaction played a very important role in the electrosorption of ion-pollutants.HAN Yanhe QUAN Xie ZHAO Huimin CHEN Shuo ZHAO Yazhi 2007Frontiers of Environmental Science & Engineering2007,1,1:4
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