|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Ce doping into V_(2)O_(5)-WO_(3)/TiO_(2) catalysts on the selective catalytic reduction of NO_(x) by NH_(3)显示文摘In this work, the effectiveness of V_2O_5-WO_3/TiO_2 catalysts modified with different CeO_2 contents by impregnation and co-precipitation methods on the selective catalytic reduction of NOxby NH3 have been studied comparatively by various experimental techniques. The results showed that the NO conversion of V_2O_5-WO_3/CeO_2-TiO_2 catalysts modified by co-precipitation method obviously increased with the Ce doping contents in the studied range below 20%(All Ce contents are in mass fractions), but the NO conversion of V_2O_5-WO_3/CeO_2/TiO_2 catalysts modified by impregnation methods was lower than V_2O_5-WO_3/CeO_2-TiO_2 catalysts especially beyond 2.5% Ce doping contents. The V_2O_5-WO_3/CeO_2-TiO_2 catalysts showed better SCR activity, wider reaction window, and higher sulfur and water resistance. The characterization results elucidated that the modified catalysts by co-precipitation method exhibited higher specific surface area, much better dispersity of Ce component, more Ce^(3+)species and more Br?nsted acid sites than that by impregnation. The vacancies caused by more Ce^(3+)species were favorable for more NO oxidation to NO_2, and the interaction between Ce species and WOxspecies generated more Br?nsted acid sites. It could be supposed that dispersed Ce Oxspecies and WOxspecies offered more second active centers respectively to adsorb oxygen and activate ammonia as co-catalysis to the primary active center of V ions, thus facilitated the better SCR activity of modified V_2O_5-WO_3/CeO_2-TiO_2 catalysts by coprecipitation methods. The co-precipitation methods with Ce component were more suitable for production of modified commercial V_2O_5-WO_3/TiO_2 catalysts. | Mengyin Chen Mengmeng Zhao Fushun Tang Le Ruan Hongbin Yang Ning Li | 2017 | Journal of Rare Earths2017，35，12： | 18 |
| 2 | Onco-miR-24 regulates cell growth and apoptosis by targeting BCL2L11 in gastric cancer显示文摘胃的癌症是世界范围的最普通的恶意之一;然而,在 tumorigenesis 的分子的机制仍然需要探索。BCL2L11 属于 BCL-2 家庭,并且充当内在的 apoptotic 串联的一个中央管理者并且调停房间 apoptosis。尽管 miRNAs 被报导了涉及癌症开发的每个阶段,在 GC 的 miR-24 的角色还没被报导。在现在的学习,当 BCL2L11 的表示在 GC 的肿瘤纸巾被禁止时, miR-24 被发现起来调整。研究从在 vitro 并且在显示出的 vivo,那 miR-24 调整 BCL2L11 表示由与 mRNA 的 3UTR 直接有约束力,因此支持房间生长,移植当禁止房间 apoptosis 时。因此, miR-24 是能是为未来的潜在的药目标的新奇 onco-miRNA 临床的使用。 | Haiyang Zhang Jingjing Duan Yanjun Qu Ting Deng Rui Liu Le Zhang Ming Bai Jialu Li Tao Ning Shaohua Ge Xia Wang ZhenzhenWang~ Qian Fan Hongli Li Guoguang Ying Dingzhi Huang Yi Ba | 2016 | Protein & Cell2016，7，2： | 11 |
| 3 | Role of pre-vertical compression in deformation behavior of Mg alloy AZ31B during super-high reduction hot rolling process显示文摘Mg alloy AZ31 B plates were processed by hot rolling with different thickness reductions per pass and prevertical compression followed by super-high reduction hot rolling(PVCR), respectively. Microstructure evolution, rolling formability variation and mechanical responses were investigated. As reduction per pass increased, the number of shear bands deflecting toward rolling direction increased, resulting in easy crack initiation in and around the bands. With increasing reduction per pass up to 80%, twinning and twinning-induced dynamic recrystallization(DRX) dominated the deformation of the edge material at350?C, resulting in local recrystallization with coarse grains and further largest edge-crack degree. Preinduced {10ī12} tensile twins by pre-vertical compression(PVC) increased number density of nucleation sites for dynamic recrystallization during the subsequent severe rolling, which enhanced the dominant role of continuous dynamic recrystallization. Designed PVCR-b was proved to be a relatively effective method to improve rolling formability of rolled Mg alloy AZ31 B plates. With this method, mean grain size of AZ31 B plate was significantly refined from ~600 mm to ~14.1 mm and more homogeneous grain size distribution along transverse direction(TD) was achieved. In addition, basal texture intensity was greatly weakened. As a result, tensile anisotropy was distinctly decreased and fracture elongation increased dramatically. | Weitao Jia Qichi Le Yan Tang Yunpeng Ding Fangkun Ning Jianzhong Cui | 2018 | Journal of Materials Science & Technology2018，34，11： | 8 |
| 4 | Enhancement of fine particle filtration with efficient humidification显示文摘Filtration is one of the most effective methods to remove suspended fine particles from air. In filtration processes,pressure drop of compact dust cake causes problems in efficiency and economy, which has received increasing attention and still remains challenging. In this study, we developed a novel technique to intensify the filtration of fine particles with efficient humidification. Two strategies for humidification, including ultrasonic atomization and steam humidification(controlling of ambient humidity), were employed and proved to be both effective. The regeneration frequency of the filter could be reduced by 55% with ultrasonic atomization, while steam humidification could lead to a 78% reduction in regeneration frequency. The effect of operating conditions on pressure drop and the mass loading during filtration were investigated. The dust cake showed a loose and porous structure with an optimized droplet-to-particle ratio. With the ratio of 1.53 and 0.0282, the maximum mass loading was 552 g·m-2upon the ultrasonic atomization and 720 g·m-2upon the steam humidification. The results show that humidification could slow down the increase of pressure drop during filtration and improve the efficiency of process. | Yumei Zhang Weidong Zhang Zhengyu Yang Junteng Liu Fushen Yang Ning Li Le Du | 2016 | Chinese Journal of Chemical Engineering2016，24，4： | 3 |
| 5 | miR-140-3p enhanced the osteo/odontogenic differentiation of DPSCs via inhibiting KMT5B under hypoxia condition显示文摘Human dental pulp stem cells(DPSCs)have emerged as an important source of stem cells in the tissue engineering,and hypoxia will change various innate characteristics of DPSCs and then affect dental tissue regeneration.Nevertheless,little is known about the complicated molecular mechanisms.In this study,we aimed to investigate the influence and mechanism of miR-140-3p on DPSCs under hypoxia condition.Hypoxia was induced in DPSCs by Cobalt chloride(CoCl_(2))treatment.The osteo/dentinogenic differentiation capacity of DPSCs was assessed by alkaline phosphatase(ALP)activity,Alizarin Red S staining and main osteo/dentinogenic markers.A luciferase reporter gene assay was performed to verify the downstream target gene of miR-140-3p.This research exhibited that miR-140-3p promoted osteo/dentinogenic differentiation of DPSCs under normoxia environment.Furthermore,miR-140-3p rescued the CoCl_(2)-induced decreased osteo/odontogenic differentiation potentials in DPSCs.Besides,we investigated that miR-140-3p directly targeted lysine methyltransferase 5B(KMT5B).Surprisingly,we found inhibition of KMT5B obviously enhanced osteo/dentinogenic differentiation of DPSCs both under normoxia and hypoxia conditions.In conclusion,our study revealed the role and mechanism of miR-140-3p for regulating osteo/dentinogenic differentiation of DPSCs under hypoxia,and discovered that miR-140-3p and KMT5B might be important targets for DPSC-mediated tooth or bone tissue regeneration. | Han Zheng Ning Wang Le Li Lihua Ge Haichao Jia Zhipeng Fan | 2021 | International Journal of Oral Science2021，13，4： | 2 |
| 6 | Optimum rolling speed and relevant temperature-and reduction-dependent interfacial friction behavior during the break-down rolling of AZ31B alloy显示文摘The present study aimed to determine the optimum rolling speed for break-down rolling of as-cast AZ31 B alloy and investigated the friction behavior associated with temperature-and reduction-sensitivity at the roll/plate contact interface. Tensile testing, formability evaluation and microstructural studies relevant to different rolling speeds were performed and finally the optimum operating rolling speed(50.0 ± 0.8 m/min) was obtained. Further, the effects of rolling reduction and initial temperature were assessed on the temperature variation, lateral spread and interfacial friction behavior at optimum rolling speed. The results showed that lower rolling speed(18.0 ± 0.8 m/min) resulted in an incompletely recrystallized structure where twins occupied relatively high volume fraction. Twinning dominated the deformation at rolling speed exceeding the optimum, resulting in the local recrystallization with shear bands and coarse grains. Rolling at 50.0 ± 0.8 m/min could get the best overall tensile properties and rolling formability due to the relatively high recrystallization degree and microstructure uniformity. An inverse method has been developed to determine the interfacial friction coefficient during interaction of AZ31 B alloy with roll surfaces. When rolling at the optimum speed, the interfacial friction coefficient ranged from 0.16 to 0.58, which was strongly positively correlated with the reduction but slightly positively correlated with the initial temperature. Depended on the rolling characteristics, external friction effect coefficient ranged from 1.25 to 2.35 and it exhibited positive correlation with both the initial rolling temperature and rolling reduction. | Weitao Jia Yan Tang Fangkun Ning Qichi Le Lei Bao | 2018 | Journal of Materials Science & Technology2018，34，11： | 2 |
| 7 | Persistence and intergenerational transmission of differentially expressed genes in the testes of intracytoplasmic sperm injection conceived mice显示文摘Intracytoplasmic sperm injection (ICSI) is commonly used to solve male infertility problems. Previous studies showed that early environmental exposure of an embryo may influence postnatal development. To detect whether ICSI operations affect the reproductive health of a male or his offspring, we established assisted reproductive technologies (ART) conceived mouse models, and analyzed gene expression profiles in the testes of both ICSI and naturally conceived (NC) newborn F1 mice using micro-array analysis. Among the differentially expressed genes, we focused on the expression of eight male reproduction-related genes. Quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) was used to analyze the expression of these genes in the testes of both adult and old F1 generation mice and adult F2 generation mice. Our results showed that down-regulated and somatic cell-expressed genes in newborn mice retained their differential expression patterns in adult and old F1 generation individuals, implying the persistence and fetal origin of the alteration in the expression of these genes. The intergenerational transmission of differential gene expression was observed, but most changes tended to be reduced in adult F2 generations. Controlled ovarian hyperstimulation (COH) and in vitro fertilization (IVF) mice models were added to explore the precise factors contributing to the differences in ICSI offspring. The data demonstrated that superovulation, in vitro culture, and mechanical stimulation involved in ICSI had a cumulative effect on the differential expression of these male reproductive genes. | Li-ya WANG Ning WANG Fang LE Lei LI Le-jun LI Xiao-zhen LIU Ying-ming ZHENG Hang-ying LOU Xiang-rong XU Xiao-ming ZHU Yi-min ZHU He-feng HUANG Fan JIN | 2013 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2013，14，5： | 2 |
| 8 | Bauschinger-Like Effect of AZ31 Magnesium Alloy Wide Sheet During the Straightening Process显示文摘The Bauschinger-like effect, which showed up in the straightening process of the AZ31 magnesium alloy wide sheet, was investigated through the multi-pass discrete three-point bending–unloading–bending(BUB) experiments. The stress variable, anisotropy, and asymmetry of tension and compression on the straightening process were corresponding to the Bauschingerlike effect. The Bauschinger-like effect in the initial, intermediate, and end of the straightening process was dominated by the twinning, detwinning, and dislocation induced by pyramidal < c + a > slip, respectively. Also, they were responsible for the transformation of the Bauschinger stress parameter(BSP) and Bauschinger energy parameter(BEP). Later, the anisotropic nonlinear kinematic hardening model(ANK model) to describe the Bauschinger-like effect was optimized and simplified. | Fangkun Ning Qichi Le Yonghui Jia Liang Chen | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，9： | 2 |
| 9 | Community structure of picoplankton abundance and biomass in the southern Huanghai Sea during the spring and autumn of 2006显示文摘During spring and autumn of 2006,the investigations on abundance,carbon biomass and distribution of picoplankton were carried out in the southern Huanghai Sea(Yellow Sea,sHS) . Three groups of picoplankton-Synechococcus(Syn) ,Picoeukaryotes(PEuk) and heterotrophic bacteria(BAC) were identified,but Prochlorococcus(Pro) was undetected. The average abundance of Syn and PEuk was lower in spring(5.0 and 1.3 × 10 3 cells/cm 3,respectively) than in autumn(92.4 and 2.7 × 10 3 cells/cm 3,respectively) ,but it was opposite for BAC(1.3 and 0.7 × 10 6 cells/cm 3 in spring and autumn,respectively) . And the total carbon biomass of picoplankton was higher in spring(37.23 ± 11.67) mg/m 3 than in autumn(21.29 ± 13.75) mg/m 3 . The ratios of the three cell abundance were 5:1:1 341 and 30:1:124 in spring and autumn,respectively. And the ratios of carbon biomass of them were 5:7:362 and 9:4:4 in spring and autumn,respectively. Seasonal distribution characteristics of Syn,PEuk,BAC were quite different from each other. In spring,Syn abundance decreased in turn in the central waters(where phytoplankton bloom in spring occurred) ,the southern waters and inshore waters of the Shandong Peninsula(where even Syn was undetected) ;the high values of PEuk abundance appeared in the central and southern waters and the inshore of the Shandong Peninsula;the abundance of BAC was nearly three order of magnitude higher than that of photosynthetic picoplankton,and high values appeared in the central waters. In autumn,Syn abundance in central waters was higher than that in surrounding waters,while for PEuk abundance,it decreased in turn in the inshore waters of the Shandong Peninsula,the southern waters and the central waters;BAC presented a complicated blocky type distribution. Sub-surface maximum of each group of picopalnkton appeared in both spring and autumn. Compared with the available literatures concerning the studied area,the range of Syn abundance was larger,and the abundance of BAC was higher. In addition,the conversion factors for calculating picoplanktonic carbon biomass were discussed,with the conversion factors which are different from previous studies in the same surveyed waters. The result of regression analysis showed that there was distinct positive correlation between BAC and photosynthetic picoplankton in spring(r=0.61,P <0.001) ,but no correlation was found in autumn. | LE Fengfeng NING Xiuren LIU Chenggang HAO Qiang SHI Junxian | 2010 | Acta Oceanologica Sinica2010，29，1： | 2 |
| 10 | Investigation of Mean Glandular Dose in Diagnostic Mammography in China显示文摘早期胸部肿瘤Ⅹ射线测定法的 420 暴露的调查被执行,参数记录了。入口皮肤空气 kerma (ESAK ) 被测量,吝啬的腺的剂量(MGD ) 根据跳舞的公式是计算的。关联分析证明几个因素能影响 MGD 水平。Mann-whitney 测试和非参量的 ANOVA 分析被用来比较看法类型和 X 光线照相术的系统组织的 MGD 水平。没有重要差别在在 craniocaudal (CC ) 之间的 MGD 被发现组和 mediolateral 倾斜(MLO ) 组。MGD 水平比在另外的二个组在 CR 组是更高的。MGD 断然与压缩的胸厚度(基于计算机的教学) 被相关。MGD 与一半改变了价值层(HVL ) 并且增加了第一然后减少了。在中国的吝啬的 MGD 水平是大约 1.6 mGy 并且是比在国际基本安全标准(IBSS ) 的指导水平低的。 | DU Xiang WANG Jin YANG Chun Yong ZHOU Xian Feng CHEN Wei CAO Xing Jiang ZHOU Yuan Yuan YU Ning Le | 2014 | Biomedical and Environmental Sciences2014，27，5： | 2 |
| 11 | Controlled growth of uniform two-dimensional ZnO overlayers on Au(111)and surface hydroxylation显示文摘Ultrathin ZnO nano structures prese nt in teresti ng two-dimensi on al(2D)graphene-like structure in contrast to wurtzite structure in bulk ZnO.Growth on Au(111)has been regarded as a well-established route to the 2D ZnO layers while controlled growth of uniform ZnO nano structures remains as a challe nge.Here,reactive deposition of Zn in O3 and NO2 was employed,which is investigated by sea nning tunneling microscopy and X-ray photoelectr on spectroscopy(XPS).We dem on strate that uniform ZnO mono layer nanoislands and films can be obtained on Au(111)using O3 and uniform ZnO bilayer nanoislands and films form on Au(111)using NO2,respectively.Formation of atomic oxyge n overlayers on Au(111)via exposure to O3 is critical to the formatio n of uniform ZnO mono layer nano structures atop.Near ambient pressure XPS studies revealed that n early full hydroxy lati on occurs on mono layer ZnO structures upon exposure to near ambient pressure water vapor or atomic hydrogen species,while partial surface hydroxylation happens on bilayer ZnO under the same gaseous exposure conditions. | Hao Wu Qiang Fu Yifan Li Yi Cui Rui Wang Nan Su Le Lin Aiyi Dong Yanxiao Ning Fan Yang Xinhe Bao | 2019 | Nano Research2019，12，9： | 1 |
| 12 | E-GrabCut: an economic method of iterative video object extraction显示文摘在录像的有效、交互前景 / 背景分割具有在录像编辑的大实际重要性。这份报纸建议当高度要求了在,一个交互、无指导的录像目标分割算法说出专注于分割质量和时间效率完成两个的 E-GrabCut 相关走。在建议算法有三个特征。第一,我们为每个框架开发了优化过程的一个强大的、非反复的版本。第二,在第一个框架的更多的用户相互作用被用来改进 Gaussian 混合模型(GMM ) 。第三,为下列框架分割的一个柔韧的算法被再使用以前的 GMM 开发了。广泛的实验证明我们的方法以时间效率和分割质量的集成超过最先进的录像分割算法。 | Le DONG Ning FENG Mengdie MAO Ling HE Jingjing WANG | 2017 | Frontiers of Computer Science2017，11，4： | 1 |
| 13 | Multidisciplinary approach for the management of term pregnancy complicated by Eisenmenger syndrome显示文摘Pregnancy in patients with Eisenmenger syndrome(ES)is associated with high maternal mortality rates of 30%‒50%,or even up to 65%in the case of a cesarean section(Yuan,2016).Here,we report a case of term pregnancy complicated with ES and severe pulmonary artery hypertension(PAH),which was managed by a multidisciplinary team(MDT)and resulted in an uncomplicated delivery via elective cesarean section.The goal of this study is to emphasize the importance of multidisciplinary approach in the management of pregnancy with ES,which can profoundly improve maternal and infant outcomes. | Shibin HONG Xin KANG Ka ULIO Yiping LE Chuan WANG Jianhua LIN Ning ZHANG | 2023 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023，24，1： | 1 |
| 14 | Interferon regulatory factor 7 is negatively regulated by the Epstein-Barr virus immadiateearly gone,BZLF-1显示文摘 | Hahn AM Huye LE Ning S | 2005 | J Virol2005，79，10： | 1 |
| 15 | Regulation of IL-1 beta-induced GM-CSF production in human airway smooth muscle cells bycarbon monoxide 显示文摘 | Song R Ning W Liu F Ameredes BT Calhoun W J Otterbein LE | 2003 | Am J Physiol Lung Cell Mol Physiol2003，284，1： | 1 |
| 16 | Biological responses of wheat ( Triticum aestivum ) plants to the herbicide chlorotoluron in soils显示文摘 | Ning Hui Song Xiao Le Yin Guo Feng Chen Hong Yang | 2007 | Chemosphere2007，，9： | 1 |
| 17 | Biological responses of wheat(Triticum aestivum)plants to the herbicide chlorotoluron in oils显示文摘 | Ning Hui Song Xiao Le Yin Guo Feng Chen | 2007 | Chemosphere2007，68，： | 1 |
| 18 | Isolation and identification of a novel polysaccharide-peptide complex with antioxidant, antiproliferative and hypoglycaemic activities from the abalone mushroom 显示文摘 | Li Ning Li Le Fang Jincen | 2012 | Bioscience Reports2012，32，3： | 1 |
| 19 | Effect of Different Factors on the Quality of Life and Sequelae of COVID-19 Patients After Discharge显示文摘Background The continued spread of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)remains an international public health emergency,resulting in a significant global disease burden.The long-term effects of SARS-CoV-2 infection in humans and the long-term prognosis of patients with coronavirus disease 2019(COVID-19)after discharge remain unclear.We aimed to assess the quality of life(QoL)and sequelae in patients with COVID-19 after discharge from the hospital by conducting multiple follow-up visits to understand the long-term effects of SARS-CoV-2 on patients'health and its possible influencing factors.Methods COVID-19 patients discharged from Huoshenshan Hospital(Wuhan,China)between February 15 and April 5,2020,were followed up at 6,9,and 12 months after discharge.They completed questionnaires on postdischarge QoL and sequelae under the guidance of medical staff with professional training.The demographic and clinical characteristics of the COVID-19 patients were analyzed using descriptive statistics.A generalized estimating equation model was used to analyze the QoL-related factors.Theχ2 test(or Fisher exact test)and multivariate logistic regression analysis were used to analyze the sequelae and influencing factors.Results A total of 175 patients participated in at least 1 follow-up visit,and 120 completed all 3 follow-up visits.Patients diagnosed with severe and critically ill COVID-19 had worse mental conditions(χ2=7.653,P=0.022)than those with the nonsevere type(not severe or critical)and were more likely to feel fatigued(χ2=4.836,P=0.028).Female patients had a higher risk of sleep disturbance(χ2=10.026,P=0.002)and dyspnea(χ2=5.672,P=0.017)and had more difficulty returning to their original work and life(χ2=8.922,P=0.003)than male patients.Patients with diabetes had a worse appetite(χ2=4.669,P=0.031)and were more prone to sleep disturbance(χ2=4.417,P=0.036)after discharge.The proportion of patients with at least 1 sequela increased from 29.76%(50/168)at 6 months to 51.11%(69/135)at 9 months(χ2=14.305,P<0.001).Compared with the nonsevere type,patients diagnosed with severe and critically ill COVID-19 had an odds ratio(OR)of 4.325(95%confidence interval[CI],1.215–15.401)for memory decline.Female patients had an OR of 4.632(95%CI,1.716–12.501)for joint or muscle pain.Patients with hypertension had an OR of 3.014(95%CI,1.193–7.615)for joint or muscle pain.Conclusion One year after discharge,there were still some patients with varying degrees of decline in QoL and sequelae,which occurred in all follow-up visits.Moreover,QoL and sequelae after discharge were related to sex,clinical classification of COVID-19,and underlying diseases. | Nan Guo Ya-Ping Yao Le Song Guan-Zhen Wang Jun-Li He Ning Zheng Qiong Mo Wen-Xu Ni Bo Zhang Fu-Sheng Wang Lei Huang | 2023 | Infectious Diseases & Immunity2023，3，2： | 1 |
| 20 | Biological responses of wheat(Triticum aestivum)plants to the herbicide chlorotoluron in soils显示文摘 | Ning Hui Song Xiao Le Yin Guo Feng Chen | 2007 | Chemosphere2007，68，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员