|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Optimization of process parameters for mature landfill leachate pretreatment using MAP precipitation显示文摘 | Wei LI Xiaowen DING Min LIU Yuewen GUO Lei LIU | 2012 | Frontiers of Environmental Science & Engineering2012，6，6： | 9 |
| 2 | Risk analysis for the highly pathogenic avian influenza in China's Mainland using meta-modeling显示文摘A logistic model was employed to correlate the outbreak of highly pathogenic avian influenza (HPAI) with related environmental factors and the migration of birds. Based on MODIS data of the normalized difference vegetation index, environmental factors were considered in generating a probability map with the aid of logistic regression. A Bayesian maximum entropy model was employed to explore the spatial and temporal correlations of HPAI incidence. The results show that proximity to water bodies and national highways was statistically relevant to the occurrence of HPAI. Migratory birds, mainly waterfowl, were important infection sources in HPAI transmission. In addition, the HPAI outbreaks had high spatiotemporal autocorrelation. This epidemic spatial range fluctuated 45 km owing to different distribution patterns of cities and water bodies. Furthermore, two outbreaks were likely to occur with a period of 22 d. The potential risk of occurrence of HPAI in China's Mainland for the period from January 23 to February 17, 2004 was simulated based on these findings, providing a useful meta-model framework for the application of environmental factors in the prediction of HPAI risk. | CAO ChunXiang XU Min CHANG ChaoYi XUE Yong ZHONG ShaoBo FANG LiQun CAO WuChun ZHANG Hao GAO MengXu HE QiSheng ZHAO Jian CHEN Wei ZHENG Sheng LI XiaoWen | 2010 | Chinese Science Bulletin2010，55，36： | 9 |
| 3 | Preparation and characterization of capric-palmitic-stearic acid ternary eutectic mixture/expanded vermiculite composites as form-stabilized thermal energy storage materials显示文摘In this study, a composite of form-stable phase change materials(FSPCMs) were prepared by the incorporation of a eutectic mixture of capric–palmitic–stearic acid(CA–PA–SA) into expanded vermiculite(EV)via vacuum impregnation. In the composites, CA–PA–SA was utilized as a thermal energy storage material,and EV served as the supporting material. X-ray diffraction and Fourier transform infrared spectroscopy results demonstrated that CA–PA–SA and EV in the composites only undergo physical combination, not a chemical reaction. Scanning electron microscopy images indicated that CA–PA–SA is sufficiently absorbed in the expanded vermiculite porous network. According to differential scanning calorimetry results, the70 wt% CA–PA–SA/EV sample melts at 19.3℃ with a latent heat of 117.6 J/g and solidifies at 17.1℃ with a latent heat of 118.3 J/g. Thermal cycling measurements indicated that FSPCMs exhibit adequate stability even after being subjected to 200 melting–freezing cycles. Furthermore, the thermal conductivity of the composites increased by approximately 49.58% with the addition of 5 wt% of Cu powder. Hence,CA–PA–SA/EV FSPCMs are effective latent heat thermal energy storage building materials. | Weiyi Zhang Xiaoguang Zhang Zhaohui Huang Zhaoyu Yin Ruilong Wen Yaoting Huang Xiaowen Wu Xin Min | 2018 | Journal of Materials Science & Technology2018，34，2： | 8 |
| 4 | Recycled Nd-Fe-B sintered magnets prepared from sludges by calcium reduction-diffusion process显示文摘Environmental friendly recycling process for Nd-Fe-B sintered magnet sludges generated in the manufacturing process, which contain large amount of rare earth, including Nd, Pr and Dy, is badly needed so far. In present study, we have developed an effective route to obtain recycled sintered magnets from Nd-Fe-B sintered magnet sludges by calcium reduction-diffusion(RD) process. Compared to conventional recycling process, our research is focused on recovering most of the useful elements, including Nd, Pr, Dy, Co, and Fe together instead of just rare earth elements. To improve the recycling efficiency and reduce pollution, the co-precipitating parameters were simulated and calculated using MATLAB software. Most of useful elements were recovered by a co-precipitation method, and the obtained composite powders were then directly fabricated as recycled Nd-Fe-B powders by a calcium reduction-diffusion(RD) method. The recovery rates are 98%, 99%, 99%, 93%, and 99%, for Nd, Pr, Dy, Co, and Fe, respectively. The amount of useful elements contained in the recovered composite powders is greater than99.71 wt%. The process of RD for synthesizing Nd_2 Fe_(14)B and subsequently removing CaO was thoroughly investigated. Furthermore, the recycled Nd-Fe-B magnet exhibits a remanence of 1.1 T, a coercivity of1053 kA/m, and an energy product of 235.6 kJ/m^3, respectively, indicating that recycled Nd-Fe-B sintered magnet was successfully recovered from the severely contaminated sludges via an effective recycling route. | Xiaowen Yin Min Liu Baicen Wan Yu Zhang Weiqiang Liu Yufeng Wu Dongtao Zhang Ming Yue | 2018 | Journal of Rare Earths2018，36，12： | 6 |
| 5 | The novel H1N1 Influenza A global airline transmission and early warning without travel containments显示文摘A novel influenza A (H1N1) has been spreading worldwide. Early studies implied that international air travels might be key cause of a severe potential pandemic without appropriate containments. In this study, early outbreaks in Mexico and some cities of United States were used to estimate the preliminary epidemic parameters by applying adjusted SEIR epidemiological model, indicating transmissibility infectivity of the virus. According to the findings, a new spatial allocation model totally based on the real-time airline data was established to assess the potential spreading of H1N1 from Mexico to the world. Our estimates find the basic reproductive number R0 of H1N1 is around 3.4, and the effective reproductive number fall sharply by effective containment strategies. The finding also implies Spain, Canada, France, Panama, Peru are the most possible country to be involved in severe endemic H1N1 spreading. | CHANG ChaoYi CAO ChunXiang WANG Qiao CHEN Yu CAO ZhiDong ZHANG Hao DONG Lei ZHAO Jian XU Min GAO MengXu ZHONG ShaoBo HE QiSheng WANG JinFeng LI XiaoWen | 2010 | Chinese Science Bulletin2010，55，26： | 6 |
| 6 | Tocilizumab in patients with moderate or severe COVID-19: a randomized, controlled, open-label, multicenter trial显示文摘Tocilizumab has been reported to attenuate the“cytokine storm”in COVID-19 patients.We attempted to verify the effectiveness and safety of tocilizumab therapy in COVID-19 and identify patients most likely to benefit from this treatment.We conducted a randomized,controlled,open-label multicenter trial among COVID-19 patients.The patients were randomly assigned in a 1:1 ratio to receive either tocilizumab in addition to standard care or standard care alone.The cure rate,changes of oxygen saturation and interference,and inflammation biomarkers were observed.Thirty-three patients were randomized to the tocilizumab group,and 32 patients to the control group.The cure rate in the tocilizumab group was higher than that in the control group,but the difference was not statistically significant(94.12%vs.87.10%,rate difference 95%CI−7.19%–21.23%,P=0.4133).The improvement in hypoxia for the tocilizumab group was higher from day 4 onward and statistically significant from day 12(P=0.0359).In moderate disease patients with bilateral pulmonary lesions,the hypoxia ameliorated earlier after tocilizumab treatment,and less patients(1/12,8.33%)needed an increase of inhaled oxygen concentration compared with the controls(4/6,66.67%;rate difference 95%CI−99.17%to−17.50%,P=0.0217).No severe adverse events occurred.More mild temporary adverse events were recorded in tocilizumab recipients(20/34,58.82%)than the controls(4/31,12.90%).Tocilizumab can improve hypoxia without unacceptable side effect profile and significant influences on the time virus load becomes negative.For patients with bilateral pulmonary lesions and elevated IL-6 levels,tocilizumab could be recommended to improve outcome. | Dongsheng Wang Binqing Fu Zhen Peng Dongliang Yang Mingfeng Han Min Li Yun Yang Tianjun Yang Liangye Sun Wei Li Wei Shi Xin Yao Yan Ma Fei Xu Xiaojing Wang Jun Chen Daqing Xia Yubei Sun Lin Dong Jumei Wang Xiaoyu Zhu Min Zhang Yonggang Zhou Aijun Pan Xiaowen Hu Xiaodong Mei Haiming Wei Xiaoling Xu | 2021 | Frontiers of Medicine2021，15，3： | 2 |
| 7 | Prion Protein Protects Cancer Cells against Endoplasmic Reticulum Stress Induced Apoptosis显示文摘Unfolded protein response(UPR) is an adaptive reaction for cells to reduce endoplasmic reticulum(ER) stress. In many types of cancers, such as lung cancer and pancreatic cancer, cancer cells may harness ER stress to facilitate their survival and growth. Prion protein(PrP) is a glycosylated cell surface protein that has been shown to be up-regulated in many cancer cells. Since PrP is a protein prone to misfolding, ER stress can result in under-glycosylated PrP, which in turn may activate ER stress. To assess whether ER stress leads to the production of under-glycosylated PrP and whether underglycosylated PrP may contribute to ER stress thus leading to cancer cell apoptosis, we treated different cancer cells with brefeldin A(BFA), thapsigargin(Thps), and tunicamycin(TM). We found that although BFA, Thps, and TM treatment activated UPR, only ATF4 was consistently activated by these reagents, but not other branches of ER stress. However, the canonical PERK-eIF2α-ATF4 did not account for the observed activation of ATF4 in lung cancer cells. In addition, BFA,but neither Thps nor TM, significantly stimulated the expression of cytosolic PrP. Finally, we found that the levels of PrP contributed to anti-apoptosis activity of BFA-induced cancer cell death. Thus, the pathway of BFA-induced persistent ER stress may be targeted for lung and pancreatic cancer treatment. | Zhenxing Gao Min Peng Liang Chen Xiaowen Yang Huan Li Run Shi Guiru Wu Lili Cai Qibin Song Chaoyang Li | 2019 | Virologica Sinica2019，34，2： | 2 |
| 8 | Preparation,structure,luminescence properties of europium doped zinc spinel structure green-emitting phosphor ZnAl_2O_4:Eu^(2+)显示文摘The Zn_(1-x)Al_2 O_4:xEu^(2+) phosphor powders were synthesized by the solid-state reaction method.The synthesis temperature for ZnAl_2 O_4 was optimized,whereas the phase structure,TEM images,photoluminescence(PL) properties,the concentration quenching mechanism,the fluorescence decay curves,as well as the CIE chromaticity coordinates of the samples were investigated in details.Under the excitation at 379 nm,the phosphor exhibits an asymmetric broad-band green emission with a peak at 532 nm,which is ascribed to the 5 d-4 f transition of Eu2+.When the doping concentration of Eu2+ ions is 0.01,the luminescence intensity of the sample reaches the maximum value.It is further proved that the exchange interaction results in the concentration quenching of Eu2+ in the Zn_(1-x)Al_2 O_4:xEu^(2+) phosphor powders.The thermal quenching property of ZnAl_2 O_4:Eu^(2+)phosphor was investigated and the quantum efficiency(QE) values of the selected Zn_(0.99)Al_2 O_4:0.01 Eu^(2+) phosphor was measured and determined as 54.85%.The lifetime of the optimized sample Zn_(0.99)Al_2 O_4:0.01 Eu^(2+) is 3.0852 μs and the CIE coordinate of the sample was calculated as(0.3323,0.5538) with high-color-purity green emission.All properties indicate that the green-emitting ZnAl_2 O_4:Eu^(2+) phosphor powder has potential application in white LEDs. | Can He Haipeng Ji Zhaohui Huang Xiaoguang Zhang Yan'gai Liu Minghao Fang Xiaowen Wu Xin Min | 2018 | Journal of Rare Earths2018，36，9： | 2 |
| 9 | Differential immune response of mallard duck peripheral blood mononuclear cells to two highly pathogenic avian influenza H5N1 viruses with distinct pathogenicity in mallard ducks显示文摘 | Zhu Cui Jiao Hu Liang He Qunhui Li Min Gu Xiaoquan Wang Shunlin Hu Huimou Liu Wenbo Liu Xiaowen Liu Xiufan Liu | 2014 | Archives of Virology2014，，2： | 1 |
| 10 | Research and development of recycling utilization of used refractories:A review显示文摘Due to thermal stability and excellent resistance to slag erosion,the used refractories can be recycled as the main raw material for some refractories.In this article the latest developments about used refractories in metallurgical industry has been reviewed,focusing on the results reported in the past decade.The research and reutilization methods of used refractories were discussed.For the research of used refractories,the results of two aspects,the performance and surface corrosion characteristics,are summarized.Then,the advances in research on recycling technology of several main kinds of used refractories,such as MgO-C,Al2O3-SiC-C,Al2O3-MgO-C,magnesium-chrome,and corundum-spinel refractories were summarized and discussed in detail.Some results of the author’s group were reported等线accompanied by these comments.The microstructure and chemical composition were studied by scanning electron microscopy and energy dispersion spectra,and the properties of the refractories were analyzed.Afterwards,the scope of application of materials was determined according to the classification and analysis of refractories.Finally,the large-scale application of used refractories and an outlook is given to future developments of the entire recycling industry. | Wu Xiaowen Chi Peng Cheng Bohao Zhang Yuena Su Wei Min Xin Fang Minghao Liu Yan’gai Huang Zhaohui | 2020 | China's Refractories2020，29，3： | 1 |
| 11 | Key regulators of intestinal stem cells:diet,microbiota,and microbial metabolites显示文摘Interactions between diet and the intestinal microbiome play an important role in human health and disease development.It is well known that such interactions,whether direct or indirect,trigger a series of metabolic reactions in the body.Evidence suggests that intestinal stem cells(ISCs),which are phenotypic precursors of various intestinal epithelial cells,play a significant role in the regulation of intestinal barrier function and homeostasis.The advent and evolution of intestinal organoid culture techniques have presented a key opportunity to study the association between the intestinal microenvironment and ISCs.As a result,the effects exerted by dietary factors,intestinal microbiomes,and their metabolites on the metabolic regulation of ISCs and the potential mechanisms underlying such effects are being gradually revealed.This review summarises the effects of different dietary patterns on the behaviour and functioning of ISCs and focuses on the crosstalk between intestinal microbiota,related metabolites,and ISCs,with the aim of fully understanding the relationship between these three factors and providing further insights into the complex mechanisms associated with ISCs in the human body.Gaining an understanding of these mechanisms may lead to the development of novel dietary interventions or drugs conducive to intestinal health. | Chensi Yao Xiaowen Gou Chuanxi Tian Lijuan Zhou Rui Hao Li Wan Zeyu Wang Min Li Xiaolin Tong | 2023 | Journal of Genetics and Genomics2023，50，10： | 1 |
| 12 | Characterization of three H5N5 and one H5N8 highly pathogenic avian influenza viruses in China显示文摘 | Kunkun Zhao Min Gu Lei Zhong Zhiqiang Duan Yan Zhang Yanmei Zhu Guo Zhao Mingjun Zhao Zhaoyang Chen Shunlin Hu Wenbo Liu Xiaowen Liu Daxin Peng Xiufan Liu | 2013 | Veterinary Microbiology (-)2013，，3： | 1 |
| 13 | District prediction of cholera risk in China based on environmental factors显示文摘The epidemics of cholera are impacted by many climatic and environmental factors such as precipitation, temperature, elevation and so on. The paper analyzed the suitable degree of V. cholerae in China using MaxEnt based on some geographic and climatic factors, and predicted the cholera risk in each district of China according to the suitable degree. The result shows that the areas in coastal southeast, central China and western Sichuan Basin are relatively suitable for V. cholerae and the suitable degree is higher in the Xinjiang Basin than in surrounding areas. The variables of precipitation, temperature and DEM are three main environmental risky factors that affecting the distribution of cholera in China. The variables of relative humidity, the distance to the sea and air pressure also have impacts on cholera, but sunshine duration and drainage density have little impact. The AUC value of MaxEnt based model is above 0.9 which indicates a high accuracy. | XU Min CAO ChunXiang WANG DuoChun KAN Biao JIA HuiCong XU YunFei LI XiaoWen | 2013 | Chinese Science Bulletin2013，58，23： | 1 |
| 14 | 术前低蛋白血症会增加克罗恩病一期肠吻合术后腹腔内感染性并发症的发生风险显示文摘目的:本研究旨在探讨术前低蛋白血症对克罗恩病(CD)患者一期肠吻合术后发生腹腔内感染性并发症(IASCs)的影响。方法:2007-2015年期间所有行肠切除一期肠吻合手术的CD患者纳入研究。采用单因素和多因素分析评估术前低蛋白血症(白蛋白<30 g/L)与术后IASCs发生风险的关系。结果:共计124例患者纳入研究,其中117例(94.4%)可以获得术前白蛋白水平的数据。13例(11.7%)患者术前合并低蛋白血症。相较之下,术前低蛋白血症患者CD诊断至手术的间期更长(P=0.012),术前服用5氨基水杨酸的比例更高(P=0.013),术中发现小肠梗阻的比例更高(P=0.015)。共有24例(19.4%)患者术后出现IASCs。单因素分析显示,术前低蛋白血症患者术后IASCs风险更高(P=0.012)。多因素分析证实,术前低蛋白血症是术后IASCs的独立危险因素(OR=4.67,95%CI:1.28–17.04,P=0.02)。将术前白蛋白水平作为一个连续型变量进行多因素分析,亦可得到相同的结果(P=0.019)。结论:对于行肠切除一期肠吻合的CD患者,术前低蛋白血症提示术后IASCs发生风险增高。改善术前营养状态或可降低术后IASCs的发生风险。 | Xuanhui Liu Xianrui Wu Chi Zhou Tuo Hu Jia Ke Yufeng Chen Xiaosheng He Xiaobin Zheng Xiaowen He Jiancong Hu Min Zhi Xiang Gao Pinjin Hu Xiaojian Wu Ping Lan | 2017 | Gastroenterology Report2017，5，4： | 1 |
| 15 | Emergence of a novel reassortant avian influenza virus(H10N3) in Eastern China with high pathogenicity and respiratory droplet transmissibility to mammals显示文摘Decades have passed since the first discovery of H10-subtype avian influenza virus(AIV) in chickens in 1949,and it has been detected in many species including mammals such as minks,pigs,seals and humans.Cases of human infections with H10N8viruses identified in China in 2013 have raised widespread attention.Two novel reassortant H10N3 viruses were isolated from chickens in December 2019 in eastern China during routine surveillance for AIVs.The internal genes of these viruses were derived from genotype S(G57) H9N2 and were consistent with H5N6,H7N9 and H10N8,which cause fatal infections in humans.Their viral pathogenicity and transmissibility were further studied in different animal models.The two H10N3 isolates had low pathogenicity in chickens and were transmitted between chickens via direct contact.These viruses were highly pathogenic in mice and could be transmitted between guinea pigs via direct contact and respiratory droplets.More importantly,these viruses can bind to both human-type SAα-2,6-Gal receptors and avian-type SAα-2,3-Gal receptors.Asymptomatic shedding in chickens and good adaptability to mammals of these H10N3 isolates would make it easier to transmit to humans and pose a threat to public health. | Kaituo Liu Pingyun Ding Yuru Pei Ruyi Gao Wenwen Han Huafen Zheng Zhuxing Ji Miao Cai Jinyuan Gu Xiuli Li Min Gu Jiao Hu Xiaowen Liu Shunlin Hu Pinghu Zhang Xiaobo Wang Xiaoquan Wang Xiufan Liu | 2022 | Science China(Life Sciences)2022，65，5： | 1 |
| 16 | Multi-site occupancies and dependent photoluminescence of Ca_(9)Mg_(1.5)(PO_(4))_(7):Eu^(2+) phosphors:A bifunctional platform for optical thermometer and plant growth lighting显示文摘Herein,we demonstrate an optical thermometer based on single Eu^(2+)doped Ca_(9)Mg_(1.5)(PO_4)_7 phosphors,which were prepared by traditional solid-state reaction technique under a reduction atmosphere.Considerations on the bond length obtained by the crystal structure refinement and the dependent photoluminescence performances allow to assign the two distinct emission bands to Eu^(2+)ions occupied Cal-Ca3 and Mg2 sites.Moreover,the blue and red emitting bands perfectly match with the photosynthetic action spectrum,which can enhance the indoor plant photosynthesis.The optimal doping content of Eu^(2+)ions in this Ca_(9)Mg_(1.5)(PO_(4))_(7)system is 3 mol%.The corresponding concentration quenching effect is verified as dipole-dipole interaction with the critical distance of 3.315 nm.Furthermore,by exploiting the fluorescence intensity technique,the optical thermal resistance properties of Ca_(9)Mg_(1.5)(PO_4)_7:Eu^(2+)are identified based on the temperature dependent emission spectra in a range of 303-523 K.In detail,the maximum absolute and relative sensitivity S_(a)and S_(r)of Ca_9Mg_(1.5)(PO_(4))_(7):Eu^(2+)thermometer are as high as 0.637%/K and 0.3155 K^(-1),respectively.Consequently,the Eu^(2+)doped Ca_(9)Mg_(1.5)(PO_(4))_(7)phosphors establish a bifunctional platfo rm for both optical the rmometer and plant growth lighting via multi-site occupancies. | Ruiyu Mi Yan-gai Liu Lefu Mei Zhaohui Huang Minghao Fang Xiaowen Wu Xin Min | 2023 | Journal of Rare Earths2023，41，10： | 1 |
| 17 | Incidence and risk factors for incisional surgical site infection in patients with Crohn’s disease undergoing bowel resection显示文摘Background:Patients with Crohn’s disease(CD)are often reported to be at a high risk for incisional surgical site infection(SSI).The aim of this study was to identify the risk factors associated with post-operative incisional SSI in CD patients after bowel resection.Method:CD patients undergoing bowel resection between 2007 and 2015 were enrolled.Demographic and clinical features related to post-operative incisional SSI were analysed using both univariate and multivariate logistical analyses.Results:Of all eligible patients(n=159),123(77.4%)were male,with a mean age at surgery of 33.4611.8 years.A total of 35(22.0%)CD patients developed post-operative incisional SSI.Post-operative incisional SSI was more likely to happen in patients who had penetrating type of disease(P=0.018),underwent bowel resection for the indication of chronic fistula(P=0.005)and had an intra-operative finding of fistula(P=0.001).A greater proportion of patients with post-operative incisional SSI were found to have anemia(P=0.019)but elevated levels of white blood cells(P=0.027),neutrophils(P=0.006)as well as an elevated percentage of neutrophils(P=0.005).Multivariate logistic regression analysis showed that anemia(odds ratio[OR]:3.31,95%confidence interval[CI]:1.05-10.46,P=0.041),an elevated percentage of neutrophils(OR:2.85,95%CI:1.23-6.59,P=0.014)and an intra-operative finding of fistula(OR:3.76,95%CI:1.53-9.21,P=0.004)were significantly associated with the risk for post-operative incisional SSI.Conclusions:Anemia,elevated percentage of neutrophils and intra-operative finding of fistula are predictors for the development of post-operative incisional SSI in CD patients undergoing bowel resection.Favorable pre-operative nutrition status and low inflammatory status may lessen the incidence of post-operative incisional SSI. | Tuo Hu Xianrui Wu Jiancong Hu Yufeng Chen Huashan Liu Chi Zhou Xiaowen He Min Zhi Xiaojian Wu Ping Lan | 2018 | Gastroenterology Report2018，6，3： | 0 |
| 18 | Biological Durability of Heat-Treated Rubber Wood显示文摘In this study,the durability of rubber wood(Hevea brasiliensis) which was thermally treated at 170,185,200,and 215℃for 3 h respectively was investigated.The results showed that the durability of heat-treated rubber wood was improved,and the improvement became more obvious with the increase of the treating temperature. When treated at 185℃or lower temperature,the decay resistance of treated wood had no significant improvement.The lowest weight losses were 21.6%and 6.8%after attack by brown rot fungi(Gloeophyllum trabeum) and white rot fungi (Coriolus versicolor) respectively,which were reached by the specimens treated at 215℃.Their resistance to mold fungi was not improved,but the heat-treated wood performed better than untreated wood when both were painted.In field test,the heat-treated specimens exhibited no advantage in termite resistance compared to untreated. | Li Xiaowen Li Min Qin Shaoshan Li Jianing Lin Weifu | 2012 | Chinese Forestry Science and Technology2012，11，3： | 0 |
| 19 | A high-tortuosity holey graphene in-situ derived from cytomembrane/cytoderm boosts ultrastable potassium storage显示文摘The sluggish K^(+)kinetics and structural instability of the generally-used graphite and other carbon-based materials hinder the development of potassium-ion batteries(PIBs)for high-rate capability and long-term cycling.Herein,inspired by the unique flake structure and chemical composition of cytomembrane and cytoderm,we design high-tortuosity holey graphene as a highly efficient anode for PIBs.The flake cytomembrane and cytoderm shrink into wrinkled morphology during drying and sintering and then convert into high-tortuosity graphene after oxidative exfoliating and thermal reducing process.Mean-while,the proteins,sugars,and glycolipids embedded in cytomembrane and cytoderm can in-situ form nanoholes with highly abundant oxygenic groups and heteroatoms around,which can be easily removed and finally the high-tortuosity holey graphene is obtained after a thermal reducing process.The stress distribution after K^(+)intercalation confirms the optimized release of strain caused by the volume change through the finite element method.Benefiting from the unique nanoholes shortening the ion-diffusion length,the synergy of wrinkled and holey structure stabilizing volume fluctuation,and the enhanced electronic conductivity and specific surface area,the high-tortuosity holey graphene demonstrates high reversible capacities of 410 mAh g^(-1)at 25 mA g^(-1)after 150 cycles and retains 91.5%at 2 A g^(-1)after 2500 cycles. | Jun Xiao Xin Min Yue Lin Qiyao Yu Wei Wang Xiaowen Wu Yangai Liu Zhaohui Huang Minghao Fang | 2023 | Journal of Materials Science & Technology2023，，8： | 0 |
| 20 | An Efficient Process for Recycling Nd-Fe-B Sludge as High-Performance Sintered Magnets显示文摘Given the increasing concern regarding the global decline in rare earth reserves and the environmental burden from current wet-process recycling techniques,it is urgent to develop an efficient recycling technique for leftover sludge from the manufacturing process of neodymium-iron-boron(Nd-Fe-B)sintered magnets.In the present study,centerless grinding sludge from the Nd-Fe-B sintered magnet machining process was selected as the starting material.The sludge was subjected to a reduction-diffusion(RD)process in order to synthesize recycled neodymium magnet(Nd2Fe14B)powder;during this process,most of the valuable elements,including neodymium(Nd),praseodymium(Pr),gadolinium(Gd),dysprosium(Dy),holmium(Ho),and cobalt(Co),were recovered simultaneously.Calcium chloride(CaCl2)powder with a lower melting point was introduced into the RD process to reduce recycling cost and improve recycling efficiency.The mechanism of the reactions was investigated systematically by adjusting the reaction temperature and calcium/sludge weight ratio.It was found that single-phase Nd2Fe14B particles with good crystallinity were obtained when the calcium weight ratio(calcium/sludge)and reaction temperature were 40 wt% and 1050℃,respectively.The recovered Nd2Fe14B particles were blended with 37.7 wt% Nd4Fe14B powder to fabricate Nd-Fe-B sintered magnets with a remanence of 12.1 kG(1 G=1×10^-4T),and a coercivity of 14.6 kOe(1 Oe=79.6A·m^-1),resulting in an energy product of 34.5 MGOe.This recycling route promises a great advantage in recycling efficiency as well as in cost. | Xiaowen Yin Ming Yue Qingmei Lu Min Liu Feng Wang Yubing Qiu Weiqiang Liu Tieyong Zuo Shanshun Zha Xuliang Li Xiaofei Yi | 2020 | Engineering2020，6，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员