|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Jef Verschueren: Understanding Pragmatics──A Review Article显示文摘ThisisareviewarticleofJefVerschueren'sUnderstandingPragmatics,hislatestcontribution,andtheworkhasbeenpreparedtopresentacoherenttheoreticalframeworkforlinguisticpragmaticsandtoofferamorecomprehensiveandscientifictextbookforthosewhoareengagedinthestudy... | He Ziran Yu Guodongp | 1999 | 现代外语1999,22,4: | 561 |
| 2 | Low-temperature SCR activity and SO_2 deactivation mechanism of Ce-modified V_2O_5–WO_3/TiO_2 catalyst显示文摘The promotion effect of ceria modi fi cation on the low-temperature activity of V2O5-WO3/TiO2 catalyst was evaluated for the selective catalytic reduction of NO with NH3(NH3-SCR). The catalytic activity of 1 wt% V2O5-WO3/TiO2 was signi fi cantly enhanced by the addition of 8 wt%ceria, which exhibited a NO x conversion above 80% in a broad temperature range 190–450 1C. This performance was comparable with 3 wt%V2O5-WO3/TiO2, indicating that the addition of ceria contributed to reducing the usage of toxic vanadia in developing low-temperature SCR catalysts. Moreover, V1 Ce WTi exhibited approximately 10% decrease in NOx conversion in the presence of 60 ppm SO2. The characterization results indicated that active components of V, W and Ce were well dispersed on TiO2 support. The synergetic interaction between Ce and V species by forming V–O–Ce bridges enhanced the reducibility of VCe WTi catalyst and thus improved the low-temperature activity. The sulfur poisoning mechanism was also presented on a basis of the designed TPDC(temperature-programmed decomposition) and TPSR(temperatureprogrammed surface reaction) experiments. The deposition of(NH4)2SO4on V1 Ce WTi catalyst was much smaller compared with that on V1 Ti.On the other hand, the oxidation of SO2 to SO3was signi fi cantly promoted on the CeO2-modi fi ed catalyst, accompanied by the formation of cerium sulfates. Therefore, the deactivation of this catalyst was mainly attributed to the vanishing of the V–Ce interaction and the sulfation of active ceria. | Ziran Ma Xiaodong Wu Ya Feng Zhichun Si Duan Weng Lei Shi | 2015 | Progress in Natural Science:Materials International2015,25,4: | 29 |
| 3 | Effects of WOx modification on the activity, adsorption and redox properties of CeO_2 catalyst for NO_x reduction with ammonia显示文摘A series of WO3/CeO2 (WOx/CeO2) catalysts were synthesized by wet impregnation of ammonium metatungstate on a CeO2 support. The resulting solid acid catalysts were characterized by X-ray diffraction (XRD), UV-Vis spectroscopy (UV-Vis), Raman spectroscopy (Raman), in-situ Fourier transform infrared spectroscopy (in-situ FT-IR) of ammonia adsorption, NH3-TPD, H2 temperature-programmed reduction (H2-TPR), NH3/NO oxidation and activity measurements for NOx reduction by NH3 (NH3-SCR). The results show that polytungstate (WOx) species are the main species of tungsten oxide on the surface of ceria. The addition of tungsten oxide enhances the Bro¨nsted acidity of ceria catalysts remarkably and decreases the amount of surface oxygen on ceria, with strong interaction between CeO2 and WOx. As a result, the N2 selectivity of NH3 oxidation and NH3-SCR at high temperatures (> 300℃) is enhanced. Therefore, a wide working temperature window in which NOx conversion exceeds 80% (NOx conversion > 80%) from 200 to 450℃, is achieved over 10 wt.% WOx/CeO2 catalyst. A tentative model of the NH3-SCR reaction route on WOx/CeO2 catalysts is presented. | Ziran Ma Duan Weng Xiaodong Wu Zhichun Si | 2012 | Journal of Environmental Sciences2012,24,7: | 23 |
| 4 | Spatial variations of macrozoobenthos and sediment nutrients in Lake Yangcheng: Emphasis on effect of pen culture of Chinese mitten crab显示文摘We determined the effect of Chinese mitten crab(CMC) pen culture on the quantified spatial distribution of the macrozoobenthic community and sediment nutrients in Lake Yangcheng.Redundancy analysis indicated that water temperature, macrophyte occurrence, sediment type, and crab culture were the main environmental factors that influence the spatiotemporal macrozoobenthic distribution. Macrozoobenthic assemblages in the lake were characterized by eutrophic indicator species. In the most polluted estuaries, the abundance and diversity indices of the whole community and abundance of chironomids and oligochaetes were significantly depressed, and sediment carbon(C) and phosphorus(P) were significantly enhanced compared with those in the western, middle(MB), and eastern basin(EB). Crab culture in this lake had significant effects on the species composition of the macrozoobenthic community in one of three CMC culture pens(CP), and generally depressed the abundance of most chironomid and oligochaete species. Significantly increased diversity, evenness, sediment carbon and nitrogen content, and sediment C:P ratio in the CP were found compared with those in the three basins.However, no conspicuous difference in sediment P content between the CP and the two basins of MB and EB was detected. Our results showed that the enhanced diversity and evenness of macrozoobenthos might be associated with the joint effect of macrophyte planting and crab predation, and macrophyte planting may modify the effects of CMC culture by leading to disproportional accumulation of C and N in the sediment relative to P in the CP of the lake. | Liping Chen Ying Zhang Qigen Liu Zhongjun Hu Yuejuan Sun Ziran Peng Lijing Chen | 2015 | Journal of Environmental Sciences2015,27,11: | 15 |
| 5 | Safety and efficacy of tenecteplase versus alteplase in patients with acute ischaemic stroke (TRACE): a multicentre, randomised, open label, blinded-endpoint (PROBE) controlled phase II study显示文摘Background Tenecteplase(TNK)possesses several pharmacological characteristics superior to conventional alteplase(rt-PA),with well-established safety and efficacy profile in Caucasians.There exists controversy over the optimal dose of intravenous rt-PA for East Asians with acute ischaemic stroke(AIS).Current study aimed to determine the safety dose range of recombinant human TNK tissue-type plasminogen activator(rhTNK-tPA)for patients with AIS in China.Methods This multicentre,prospective,randomised,open-label,blinded end-point,phase II study compared three tiers of 0.1,0.25,0.32 mg/kg rhTNK-tPA(to a maximum of 40 mg)with standard 0.9 mg/kg rt-PA(to a maximum of 90 mg)in patients who were eligible for intravenous thrombolysis.The safety outcome were symptomatic intracranial haemorrhage(sICH)within 36 hours.Results Between May 2018 and February 2020,240 patients were randomly assigned to four group,4 of whom did not receive study treatment.The intention-to-treat analysis included 236 patients.There was no difference in the improvement on National Institutes of Health Stroke Scale at day 14 in the 3 tiers and control group(63.3%,77.2%,66.7%vs 62.7%).The number of sICH was 3 of 60(5.0%)in the 0.1 mg/kg group,none in the 0.25 mg/kg group,2 of 60(3.3%)in the 0.32 mg/kg group and 1(1.7%)of 59 in the rt-PA group.There were no significant between-group differences in severe adverse events.Conclusions Similar to the Caucasians,rhTNK-tPA was well tolerated in Chinese patients with AIS at all doses administered within 3 hours of symptom onset.The dose-efficacy profile of rhTNK-tPA needs to be established with future investigations. | Shuya Li Yuesong Pan Ziran Wang Zhigang Liang Huisheng Chen Dong Wang Yi Sui Xingquan Zhao Yilong Wang WanLiang Du Huaguang Zheng Yongjun Wang | 2022 | Stroke & Vascular Neurology2022,7,1: | 9 |
| 6 | Novel synthesis of fly-ash-derived Cu-loaded SAPO-34 catalysts and their use in selective catalytic reduction of NO with NH3显示文摘A combined acid–alkali hydrothermal method was used to prepare fly ash–derived SAPO-34 molecular sieves from a thermal power plant in Inner Mongolia(China).The specific surface area of the prepared fly-ash-derived SAPO-34 molecular sieves was 579 m^2 g^-1,the total pore volume was about 0.27 cm^3 g^-1,and the pore size was 0.56 nm;the molar ratios of Al2O3:P2O5:SiO2 were 1:0.86:0.45.Cu/SAPO-34 catalysts were prepared by impregnation of low-cost fly-ash-derived SAPO-34 molecular sieves as a support and tested in selective catalytic reduction with NH3(NH3-SCR).Powder X-ray diffraction(XRD),N2 adsorption–desorption,X-ray photoelectron spectroscopy(XPS),H2 temperatureprogrammed reduction(H2-TPR),NH3 temperature-programmed desorption(NH3-TPD),electron paramagnetic resonance(EPR),nuclear magnetic resonance(NMR),X-ray fluorescence analysis(XRF)and scanning electron microscopy(SEM)were used for catalyst characterization and investigation of the relationships between the catalyst structure and the catalytic activity.The actual silica:alumina ratio of the molecular sieves did not increase with increasing Cu loading,indicating that increasing the Cu loading does not change the original structure of the SAPO-34 molecular sieves.The XRF and NMR results showed that replacement by Cu results in more Si islands.The molecular sieve acidity decreased because of the increased number of Si islands.The NH3-TPD results showed that for the Cu/SAPO-34 catalysts there was a low correlation between the low-temperature activity and the amount of acidic sites.SCR activity is closely related to the location of Cu.The 4.47 Cu/SAPO-34 catalyst has the highest isolated Cu2+showed the highest NH3-SCR activities(>90%)at 250–350℃.This work opens up new avenues for recycling fly ash formed in coal-fired power plants(reducing environmental pollution)and developing low-cost SCR catalysts for NOx pollution control. | Ge Li Baodong Wang Qi Sun Wayne Qiang Xu Ziran Ma Hongyan Wang Daojun Zhang Jiali Zhou | 2019 | Green Energy & Environment2019,4,4: | 6 |
| 7 | Imbalance of the reciprocally inhibitory loop between the ubiquitin-specific protease USP43 and EGFR/PI3K/AKT drives breast carcinogenesis显示文摘 | Lin He Xinhua Liu Jianguo Yang Wanjin Li Shumeng Liu Xujun Liu Ziran Yang Jie Ren Yue Wang Lin Shan Chengjian Guan Fei Pei Liandi Lei Yu Zhang Xia Yi Xiaohan Yang Jing Liang Rong Liu Luyang Sun Yongfeng Shang | 2018 | Cell Research2018,28,9: | 5 |
| 8 | 骨科教程锁定钢板:技巧和窍门显示文摘锁定钢板是带有锁定螺纹孔的骨折固定器械,它可以保证螺钉和钢板通过锁定螺纹孔成为一体,达到角稳定作用。锁定钢板的螺钉孔可以是混合性钉孔,既可以使用锁定螺钉也可以使用传统非锁定螺钉(也称为结合型钢板)。锁定钢板最早在20年前就被用于脊柱外科和颌面外科。上世纪80年代晚期直到90年代中期,各种各样不同类型的骨折内固定器材的研究促进了锁定钢板应用于骨折固定。 | Wade R. Smith Bruce H. Ziran Jeff O. Anglen Philip F. Stahel 刘敬峰(译) 王蕾(译) | 2008 | 中华骨科杂志2008,28,3: | 5 |
| 9 | Liquid-liquid phase separation in human health and diseases显示文摘Emerging evidence suggests that liquid-liquid phase separation(LLPS)represents a vital and ubiquitous phenomenon underlying the formation of membraneless organelles in eukaryotic cells(also known as biomolecular condensates or droplets).Recent studies have revealed evidences that indicate that LLPS plays a vital role in human health and diseases.In this review,we describe our current understanding of LLPS and summarize its physiological functions.We further describe the role of LLPS in the development of human diseases.Additionally,we review the recently developed methods for studying LLPS.Although LLPS research is in its infancy-but is fast-growing-it is clear that LLPS plays an essential role in the development of pathophysiological conditions.This highlights the need for an overview of the recent advances in the field to translate our current knowledge regarding LLPS into therapeutic discoveries. | Bin Wang Lei Zhang Tong Dai Ziran Qin Huasong Lu Long Zhang Fangfang Zhou | 2021 | Signal Transduction and Targeted Therapy2021,6,9: | 4 |
| 10 | Hot deformation behavior of FGH96 superalloys显示文摘The hot deformation behavior of FGH96 superalloys at 1070-1170°C and 5×10?4-2×10?1 s?1 were investigated by means of the isothermal compression tests at a Gleeble-1500 thermal mechanical simulator. The results show that dynamic recovery acts as the main softening mechanism below 2×10?3 s?1, whereas dynamic recrystallization acts as the main softening mechanism above 2×10?3 s?1 during deformation; the temperature increase caused by the deformation and the corresponding softening stress is negligible; the thermal-mechanical constitutive model to describe the hot deformation behavior is given, and the value of the apparent deformation activation energy (Qdef ) is determined to be 354.93 kJ/mol. | Jiantao Liu Guoquan Liu Benfu Hu Yuepeng Song Ziran Qin Yiwen Zhang | 2006 | Journal of University of Science and Technology Beijing2006,13,4: | 4 |
| 11 | Alterations in microbiota of patients with COVID-19:potential mechanisms and therapeutic interventions显示文摘The global coronavirus disease 2019(COVID-19)pandemic is currently ongoing.It is caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).A high proportion of COVID-19 patients exhibit gastrointestinal manifestations such as diarrhea,nausea,or vomiting.Moreover,the respiratory and gastrointestinal tracts are the primary habitats of human microbiota and targets for SARS-CoV-2 infection as they express angiotensin-converting enzyme-2(ACE2)and transmembrane protease serine 2(TMPRSS2)at high levels.There is accumulating evidence that the microbiota are significantly altered in patients with COVID-19 and post-acute COVID-19 syndrome(PACS). | Bin Wang Lei Zhang Yongqiang Wang Tong Dai Ziran Qin Fangfang Zhou Long Zhang | 2022 | Signal Transduction and Targeted Therapy2022,7,5: | 3 |
| 12 | Industrial Agglomeration Externalities, City Size, and Regional Economic Development: Empirical Research Based on Dynamic Panel Data of 283 Cities and GMM Method显示文摘Local governments have long been ardently pursuing the industrial specialization effect(MAR externalities) and industrial diversification effect(Jacobs externalities). Such a pursuit has resulted in severe distortion of resource allocation and negative effect on sustainability of local economic development. Regarding the effect from both MAR and Jacobs externalities on local economic development existing literature records notable disputes. Therefore, for local economic development, one important issue is which externality(MAR or Jacobs) can better bring the effect into play. By studying a panel data of 283 Chinese cities from 2003 to 2012 and applying dynamic plane data GMM method, this paper conducted a regression analysis of the relationship among industrial agglomeration externalities, city size, and regional economic development. The result indicates that with regard to the whole nation, MAR externalities are conducive to regional economy development whereas Jacobs externalities will, to an extent, restrain regional economic development. As regards eastern, middle, and western regions, MAR externalities are conducive only to the economic development of the eastern region; their effects on middle and western regions are insignificant. Moreover, the interaction item between MAR externalities and city size has a significant negative synergistic effect on national economic development and a certain acceleration effect on eastern region as well as a strong negative synergistic effect on the middle region and an insignificant effect on the western region. The interaction item between Jacobs externalities and city size has a positive synergistic effect on only the middle region and has an insignificant synergistic effect on both eastern and western regions. Capital stock and labor input have significant accelerating effects on GDP growth per capita of Chinese cities, whereas material capital and labor input remain primary driving forces for Chinese local economic development. Furthermore, human capital contributes to accelerating urban economic development, whereas government intervention restrains urban economic development. | ZHU Huayou DAI Zejuan JIANG Ziran | 2017 | Chinese Geographical Science2017,27,3: | 3 |
| 13 | More permutation polynomials with differential uniformity six显示文摘Differential analysis is one of the most important attacks threatening iterated block ciphers.To resist against differential attacks[1],the multioutput Boolean functions used in designing Sboxes should have low differential uniformity.For a positive integer n,the lowest differential uniformity of the functions from the finite field F_(2n)(for a prime power q,F_q denotes the finite field | Ziran TU Xiangyong ZENG Zhiyong ZHANG | 2018 | Science China(Information Sciences)2018,61,3: | 3 |
| 14 | Rapid and Complete Conversion of CH3NH3PbI3 for Perovskite/C60 Planar-Heterojunction Solar Cells by Two-Step Deposition显示文摘 | Weihai Sun Yunlong Li Weibo Yan Haitao Peng Senyun Ye Haixia Rao Ziran Zhao Zhiwei Liu Zuqiang Bian Chunhui Huang | 2017 | Chinese Journal of Chemistry2017,35,5: | 2 |
| 15 | Molecular analysis of cell-free DNA identifies distinct molecular features in patients with chemosensitive and chemorefractory small cell lung cancer显示文摘Dear Editor,Lung cancer is the predominant cause of cancer-related death worldwide[1].Non-small cell lung cancer accounts for 80%-85%and small cell lung cancer(SCLC)accounts for 15%-20%of all lung cancer cases[2].Patients with SCLC,a highly aggressive and poorly differentiated malignancy,have an alarming average 5-year overall sur-vival rate of less than 10%[3].Most patients with SCLC already show clinically detectable metastases at diag-nosis and have extremely poor prognoses,even when treated with multimodality therapy[4].Before the addi-tion of atezolizumab to chemotherapy became the first-line treatment of extensive-stage SCLC,chemotherapy is the primary treatment of SCLC[5]. | Jie Zhang Chen Tian Fang Lv Jianfei Wang Wenbo Han Jun Nie Ling Dai Weiheng Hu Xiaoling Chen Xiangjuan Ma Guangming Tian Di Wu Sen Han Yang Wang Jieran Long Ziran Zhang Jian Fang Henghui Zhang | 2019 | Cancer Communications2019,39,1: | 2 |
| 16 | The interplay of osteogenesis and hematopoiesis: expression of a constitutively active PTH/PTHrP receptor in osteogenic cells perturbs the establishment of hematopoiesis in bone and of skeletal stem cells in the bone marrow显示文摘 | KUZNETSOV SA RIMINUCCI M ZIRAN N | 2004 | J Cell Biol2004,167,6: | 1 |
| 17 | Locking plates:tips and tricks 显示文摘 | Smith WR Ziran BH Anglen JO | 2007 | J Bone Joint Surg Am2007,10,: | 1 |
| 18 | Trochanteric flip osteotomy for cranial extension and muscle protection in aeetabular fracture fixation using a Kocher-Langenbeck approach 显示文摘 | Siebenrock KA Gautier E Ziran BH | 2006 | J Orthop Trauma2006,20,1: | 1 |
| 19 | The use of a T--plate as 'spriugplates' for small eomminuted posterior wall fragments 显示文摘 | Ziran BH Little JE Kinney RC | 2011 | J Orthop Traumam2011,25,9: | 1 |
| 20 | A true triceps- splitting approach for treatment of distal humerus fractures: a preliminary report显示文摘 | Ziran BH Smith WR Balk ML | 2005 | J Trauma2005,58,1: | 1 |