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| 1 | Hydrogen Sulfide Positively Regulates Abscisic Acid Signaling through Persulf idation of SnRK2.6 in Guard Cells显示文摘The phytohormone abscisic acid(ABA)plays pivotal roles in triggering stomatal closure and facilitating adaptation of plants to drought stress.Hydrogen sulfide(H2S),a small signaling gas molecule,is involved in ABA-dependent stomatal closure.However,how H2S regulates ABA signaling remains largely unclear.Here,we show that ABA induces the production of H2S catalyzed by L-CYSTEINE DESULFHYDRASE1(DES1)in guard cells,and H2S in turn positively regulates ABA signaling through persulfidation of Open Stomata 1(OST1)/SNF1-RELATED PROTEIN KINASE2.6(SnRK2.6).Two cysteine(Cys)sites,Cys131 and Cys137,which are exposed on the surface of SnRK2.6 and close to the activation loop,were identified to be persulfidated,which promotes the activity of SnRK2.6 and its interaction with ABA response element-binding factor 2(ABF2),a transcription factor acting downstream of ABA signaling.When Cys131,Cys137,or both residues in SnRK2.6 were substituted with serine(S),H2S_induced SnRK2_6 activity and SnRK2.6-ABF2 interaction were partially(SnRK2.6c131s and SnRK2.6c137S)or completely(SnRK2.6c131sc137S)compromised.Introduction of SnRK2.6c131s,SnRK2.6c137S,or SnRK2.6c131sc137S into the ost1-3 mutant could not rescue the mutant phenotype:less sensitivity to ABA-and H2S-induced stomatal closure and Ca2+influx as well as increased water loss and decreased drought tolerance.Taken together,our study reveals a novel post-translational regulatory mechanism of ABA signaling whereby H2S persulfidates SnRK2.6 to promote ABA signaling and ABA-induced stomatal closure. | Sisi Chen Honglei Jia Xiaofeng Wang Cong Shi Xiao Wang Peiyun Ma Juan Wang Meijuan Ren Jisheng Li | 2020 | Molecular Plant2020,13,5: | 13 |
| 2 | Humoral immune response to circulating SARS-CoV-2 variants elicited by inactivated and RBD-subunit vaccines显示文摘SARS-CoV-2 variants could induce immune escape by mutations on the receptor-binding domain(RBD)and N-terminal domain(NTD).Here we report the humoral immune response to circulating SARS-CoV-2 variants,such as 501Y.V2(B.1.351),of the plasma and neutralizing antibodies(NAbs)elicited by CoronaVac(inactivated vaccine),ZF2001(RBD-subunit vaccine)and natural infection.Among 86 potent NAbs identified by high-throughput single-cell VDJ sequencing of peripheral blood mononuclear cells from vaccinees and convalescents,near half anti-RBD NAbs showed major neutralization reductions against the K417N/E484K/N501Y mutation combination,with E484K being the dominant cause.VH3-53/VH3-66 recurrent antibodies respond differently to RBD variants,and K417N compromises the majority of neutralizing activity through reduced polar contacts with complementarity determining regions.In contrast,the 242–244 deletion(242–244Δ)would abolish most neutralization activity of anti-NTD NAbs by interrupting the conformation of NTD antigenic supersite,indicating a much less diversity of anti-NTD NAbs than anti-RBD NAbs.Plasma of convalescents and CoronaVac vaccinees displayed comparable neutralization reductions against pseudo-and authentic 501Y.V2 variants,mainly caused by E484K/N501Y and 242–244Δ,with the effects being additive.Importantly,RBD-subunit vaccinees exhibit markedly higher tolerance to 501Y.V2 than convalescents,since the elicited anti-RBD NAbs display a high diversity and are unaffected by NTD mutations.Moreover,an extended gap between the third and second doses of ZF2001 leads to better neutralizing activity and tolerance to 501Y.V2 than the standard three-dose administration.Together,these results suggest that the deployment of RBD-vaccines,through a third-dose boost,may be ideal for combating SARS-CoV-2 variants when necessary,especially for those carrying mutations that disrupt the NTD supersite. | Yunlong Cao Ayijiang Yisimayi Yali Bai Weijin Huang Xiaofeng Li Zhiying Zhang Tianjiao Yuan Ran An Jing Wang Tianhe Xiao Shuo Du Wenping Ma Liyang Song Yongzheng Li Xiang Li Weiliang Song Jiajing Wu Shuo Liu Xuemei Li Yonghong Zhang Bin Su Xianghua Guo Yangyang Wei Chuanping Gao Nana Zhang Yifei Zhang Yang Dou Xiaoyu Xu Rui Shi Bai Lu Ronghua Jin Yingmin Ma Chengfeng Qin Youchun Wang Yingmei Feng Junyu Xiao Xiaoliang Sunney Xie | 2021 | Cell Research2021,31,7: | 12 |
| 3 | Genome Characteristics and Evolution of Pseudorabies Virus Strains in Eastern China from 2017 to 2019显示文摘Since late 2011,outbreaks of pseudorabies virus(PRV)have occurred in southern China causing major economic losses to the pig industry.We previously reported that variant PRV forms and recombination in China could be the source of continued epidemics.Here,we analyzed samples from intensive pig farms in eastern China between 2017 and 2019,and sequenced the main glycoproteins(gB,gC,gD,and gE)to study the evolution characteristics of PRV.Based on the gC gene,we found that PRV variants belong to clade 2 and detected a founder effect during by the PRV epidemic.In addition,we detected inter-and intra-clade recombination;in particular,inter-clade recombination in the gB genes of strains FJ-ZXF and FJ-W2,which were recombinant with clade 1 strains.We also found specific amino-acid changes and positively selected sites,possibly associated with functional changes.This analysis of the emergence of PRV in China illustrates the need for continuous monitoring and the development of vaccines against specific variants of PRV. | Xiaofeng Zhai Wen Zhao Kemang Li Cheng Zhang Congcong Wang Shuo Su Jiyong Zhou Jing Lei Gang Xing Haifeng Sun Zhiyu Shi Jinyan Gu | 2019 | Virologica Sinica2019,34,6: | 12 |
| 4 | Cloud-resolving model for weather modification in China显示文摘Weather modification is widely carried out in China.It is important to develop an operational model for weather modification to predict the microphysical features of cloud and precipitation and to help locate possible seeding areas.A two-moment microphysics scheme is developed using a quasi-implicit calculation method.The scheme predicts the evolution of mass as well as the number densities of the five hydrometeor types.Some microphysical processes are specified.The scheme is implemented with mesoscale models that have been run operationally for weather modification in China. | LOU XiaoFeng SHI YueQin SUN Jing XUE LuLin HU ZhiJin FANG Wen LIU WeiGuo | 2012 | Chinese Science Bulletin2012,57,9: | 12 |
| 5 | COR27 and COR28 encode nighttime repressors integrating Arabidopsis circadian clock and cold response显示文摘It was noted that circadian components function in plant adaptation to diurnal temperature cycles and freezing tolerance.Our genome-wide transcriptome analysis revealed that evening-phased COR27 and COR28 mainly repress the transcription of clockassociated evening genes PRR5,ELF4 and cold-responsive genes.Chromatin immunoprecipitation indicated that CCA1 is recruited to the site containing EE elements of COR27 and COR28 promoters in a temperaturedependent way.Further genetic analysis shows COR28 is essential for the circadian function of PRR9 and PRR7.Together,our results support a role of COR27 and COR28 as nighttime repressors integrating circadian clock and plant cold stress responses. | peng wang xuan cui chunsheng zhao liyan shi guowei zhang fenglong sun xiaofeng cao li yuan qiguang xie xiaodong xu | 2017 | Journal of Integrative Plant Biology2017,59,2: | 6 |
| 6 | Experimental investigation of a counter-rotating compressor with boundary layer suction显示文摘This paper presents the aspirated modification of a dual-stage counter-rotating compressor which contains inlet guide vanes(IGVs), two counter-rotating rotors(R1, R2), and outlet guide vanes(OGVs).Uniform circular holes are circumferentially distributed over the rotors' tips on the shroud casing which are designed to remove the low-energy fluid near the shroud casing.OGVs are hollow blades with two slots designed on the suction side which can better control the flow on the suction surface through boundary layer suction.Related works about the experiments have been carried out since June 2012 and the effect of flow suction on the performance of the compressor is investigated in detail.Characteristic lines at a 70% corrected rotating speed are tested and those with higher rotating speeds will be studied in the near future.Experimental results indicate that boundary layer suction can improve the compressor characteristics and the best suction methodology varies along the operating line.At the near stall condition, suction from the R2 tip region can obviously increase the efficiency and the total pressure ratio, as well as improve the flow capacity.Isentropic efficiency can be maximally increased by 4.24% with an increase of 1.94% in massflow under a suction flow of 160 m3/h.Suction at the R1 position with a suction rate below 0.35% in a high flow situation can make the performance of the compressor better than others.Around the peak efficiency point, boundary layer suction from the slots of OGVs is the best choice in improving the efficiency, but it causes a 0.1% loss in the total pressure ratio. | Shi Lei Liu Bo Na Zhenzhe Wu Xiaoxiong Lu Xiaofeng | 2015 | Chinese Journal of Aeronautics2015,28,4: | 6 |
| 7 | Effects of scanning speed on microstructure in laser surface-melted single crystal superalloy and theoretical analysis显示文摘Scanning speed is a critical parameter for laser process,which can play a key role in the microstructure evolution of laser melting.In the laser melting of single crystal superalloy,the effects of scanning speed were investigated by experimental analysis and computational simulation.The laser was scanning along710 direction on(001) surface in different speeds.Solidification microstructures of dendrites growth direction and the primary dendritic spacing were analyzed by metallograph.Besides,a planar interface during solidification was taken into attention.Experiment results indicated that the primary dendritic spacing and thickness of planar interface decrease with the increase of speed.Through simulation,distribution of dendrites growth velocity and thermal gradient along dendrite growth direction were calculated,and the simulation of dendrites growth direction agreed with the experiment results.Additionally,a constant value was acquired which can be used to predict the primary dendritic spacing.Moreover,according to curve-fitting method and inequality relation,a model was proposed to predict the thickness of planar interface. | Guowei Wang Jingjing Liang Yanhong Yang Yu Shi Yizhou Zhou Tao Jin Xiaofeng Sun | 2018 | Journal of Materials Science & Technology2018,34,8: | 5 |
| 8 | Structure of the human activated spliceosome in three conformational states显示文摘在拼接的 pre-mRNA 的每个周期期间, pre 催化的 spliceosome (B 建筑群) 被变换成激活的 spliceosome (B 行为 建筑群) ,它有一个合法活跃地点但是不能继续到分叉的反应。这里,我们在场人的 B 处于三个不同 conformational 状态的行为 建筑群。他们地图允许将近所有的原子建模 U2 小原子 ribonucleoprotein (snRNP ) 的蛋白质部件,包括三 SF3a 建筑群和七 SF3b 建筑群。人的 B 行为 建筑群包含 52 蛋白质, U2, U5,和 U6 小原子 RNA (snRNA ) ,和 pre-mRNA。三不同符合构造被捕获了,代表人的 B 行为 建筑群。这些建筑群在开关环的取向不同 Prp8,拼接的因素 RNF113A 和 NY-CO-10,和十九建筑群(NTC ) 和 NTC 相关的建筑群的大多数部件。有 B 和 C 建筑群的这三建筑群和比较的分析在 B-to-B 行为 和 B 行为 -to-B* 转移,它最终为分叉的反应告知活跃地点。 | Xiaofeng Zhang, Chuangye Yan, Xiechao Zhan, Lijia Li, Jianlin Lei, Yigong Shi Jianlin Lei Yigong Shi | 2018 | Cell Research2018,28,3: | 4 |
| 9 | Carbon and hydrogen isotopic composition and generation pathway of biogenic gas in China显示文摘The carbon and hydrogen isotopic composition of biogenic gas is of great importance for the study of its generation pathway and reservoiring characteristics. In this paper, the formation pathways and reservoiring characteristics of biogenic gas reservoirs in China are described in terms of the carbon and hydrogen isotopic compositions of 31 gas samples from 10 biogenic gas reservoirs. The study shows that the hydrogen isotopic compositions of these biogenic gas reservoirs can be divided into three intervals: δDCH4>-200‰,-250‰<δDCH4<-200‰ and δDCH4<-250‰. The forerunners believed that the main generation pathway of biogenic gas under the condition of continental fresh water is acetic fermentation. Our research results showed that the generation pathway of biogenic gas under the condition of marine facies is typical CO2-reduction, the biogenic gas has heavy hydrogen isotopic composition: its δDCH4 values are higher than-200‰; that the biogenic gas under the condition of continental facies also was generated by the same way, but its hydrogen isotopic composition is lighter than that of biogenetic gas generated under typical marine facies condition: -250‰<δDCH4<-200‰, the δDCH4 values may be related to the salinity of the water medium in ancient lakes. From the relevant data of the Qaidam Basin, it can be seen that the hydrogen isotopic composition of biogenic methane has the same variation trend with increasing salinity of water medium. There are biogenic gas reservoirs formed in transitional regions under the condition of continental facies. These gas reservoirs resulted from both CO2-reduction and acetic fermentation, the formation of which may be related to the non-variant salinity of ancient water medium and the relatively high geothermal gradient, as is the case encountered in the Baoshan Basin. The biogenic gas generating in these regions has light hydrogen isotopic composition: δDCH4<-250‰, and relatively heavy carbon isotopic composition. There is a fairly strong negative correlation between the carbon isotopic composition and the hydrogen isotopic composition. The generation mechanism and pathway of carbon, and the hydrogen isotopic composition of biogenic gas may be used to ascertain whether biogenic gas samples from the natural world are of industrial utilization value. In general, the biogenic gas formed by way of acetic fermentation is not propitious to the formation of gas reservoirs. | SHEN Ping WANG Xiaofeng XU Yin SHI Baoguang XUYongchang | 2009 | Chinese Journal Of Geochemistry2009,28,2: | 4 |
| 10 | Low-mature gases and their resource potentiality显示文摘In the 80’s of last century, based on the advances in natural gas exploration practice, the concepts of bio-thermocatalytic transitional-zone gas and early thermogenetic gas were proposed, and the lower limit Ro values for the formation and accumulation of thermogenetic natural gases of industrial importance have been extended to 0.3%–0.4%. In accordance with the two-stage model established on the basis of carbon isotope fractionation involved in the formation of coal-type natural gases, the upper limit Ro values of lowly evolved natural gases should be set at 0.8%–1.0%. This is the concept of low-mature gas which is commonly accepted at the present time. The Urengoy super-large gas field in western Siberian Basin is a typical example of low-mature gas field, where low-mature gas reserves account for 20% of the globally proven natural gas reserves, and this fully indicates the importance of this kind of resources. The proven reserves of natural gases in the Turpan-Hami Basin of China are approximate to 1000×108 m3, and the thermal evolution indices of source rocks are Ro=0.4%–0.8%. The δ13C1 values of methane are mainly within the range of -44‰– -39‰ (corresponding to Ro=0.6%–0.8%), and those of ethane are mainly within the range of -29‰– -26‰, indicating that these natural gases should be designated to the coal-type low-mature gases. The light hydrocarbon evolution indices of natural gases also provide strong evidence suggesting that they are the coal-type low-mature gases. If so, low-mature gas in the Turpan-Hami Basin has been accumulated to such an extent as to be equivalent to the total reserves of three large-sized gas fields, and their existence is of great significance in the study and exploration of China’s low-mature gases. If it is evidenced that the source rocks of low-mature gases are related mainly to coal measures, China’s abundant lowly evolved coal series resources will provide a huge resource potentiality for the generation of low-mature gases. | XU Yongchang WANG Xiaofeng SHI Baoguang | 2009 | Chinese Journal Of Geochemistry2009,28,3: | 4 |
| 11 | Structures of the human pre-catalytic spliceosome and its precursor spliceosome显示文摘The pre-catalytic spliceosome (B complex) is preceded by its precursor spliceosome (pre-B complex) and followed by the activated spliceosome (Bact complex). The pre-B-to-B and B-to-Bact transitions are driven by the ATPase/helicases Prp28 and Brr2,respectively. In this study,we report the cryo-electron microscopy structures of the human pre-B complex and the human B complex at an average resolution of 5.7 and 3.8 A,respectively. In the pre-B complex,U1 and U2 small nuclear ribonucleoproteins (snRNPs) associate with two edges of the tetrahedron-shaped U4/U6.U5 tri-snRNP. The pre-mRNA is yet to be recognized by U5 or U6 small nuclear RNA (snRNA),and loop I of U5 snRNA remains unengaged. In the B complex,U1 snRNP and Prp28 are dissociated,the 5’-exon is anchored to loop I of U5 snRNA,and the 5’-splice site is recognized by U6 snRNA through duplex formation. In sharp contrast to S. cerevisiae,most components of U2 snRNP and tri-snRNP,exemplified by Brr2,undergo pronounced rearrangements in the human pre-B-to-B transition. Structural analysis reveals mechanistic insights into the assembly and activation of the human spliceosome. | Xiechao Zhan Chuangye Yan Xiaofeng Zhang Jianlin Lei Yigong Shi | 2018 | Cell Research2018,28,12: | 4 |
| 12 | Wave parameters retrieval for dual-polarization C-band synthetic aperture radar using a theoretical-based algorithm under cyclonic conditions显示文摘Theoretical-based ocean wave retrieval algorithms are applied by inverting a synthetic aperture radar(SAR)intensity spectrum into a wave spectrum, that has been developed based on a SAR wave mapping mechanism. In our previous studies, it was shown that the wave retrieval algorithm, named the parameterized first-guess spectrum method(PFSM), works for C-band and X-band SAR at low to moderate sea states. In this work, we investigate the performance of the PFSM algorithm when it is applied for dual-polarization c-band sentinel-1(S-1) SAR acquired in extra wide-swath(EW) and interferometric wide-swath(IW) mode under cyclonic conditions.Strong winds are retrieved from six vertical-horizontal(VH) polarization S-1 SAR images using the c-band crosspolarization coupled-parameters ocean(C-3 PO) model and then wave parameters are obtained from the image at the vertical-vertical(VV) polarization channel. significant wave height(SWH) and mean wave period(MWP) are compared with simulations from the WAVEWATCH-III(WW3) model. The validation shows a 0.69 m root mean square error(RMSE) of SWH with a –0.01 m bias and a 0.62 s RMSE of MWP with a –0.17 s bias. Although the PFSM algorithm relies on a good quality SAR spectrum, this study confirms the applicability for wave retrieval from an S-1 SAR image. Moreover, it is found that the retrieved results have less accuracy on the right sector of cyclone eyes where swell directly affects strong wind-sea, while the PFSM algorithm works well on the left and rear sectors of cyclone eyes where the interaction of wind-sea and swell is relatively poor. | Yingying Ding Juncheng Zuo Weizeng Shao Jian Shi Xinzhe Yuan Jian Sun Jiachen Hu Xiaofeng Li | 2019 | Acta Oceanologica Sinica2019,38,5: | 3 |
| 13 | Cardiac fibroblast heat shock protein 47 aggravates cardiac fibrosis post myocardial ischemia-reperfusion injury by encouraging ubiquitin specific peptidase 10 dependent Smad4 deubiquitination显示文摘Despite complications were significantly reduced due to the popularity of percutaneous coronary intervention(PCI) in clinical trials, reperfusion injury and chronic cardiac remodeling significantly contribute to poor prognosis and rehabilitation in AMI patients. We revealed the effects of HSP47 on myocardial ischemia-reperfusion injury(IRI) and shed light on the underlying molecular mechanism.We generated adult mice with lentivirus-mediated or miRNA(mi1/133TS)-aided cardiac fibroblastselective HSP47 overexpression. Myocardial IRI was induced by 45-min occlusion of the left anterior descending(LAD) artery followed by 24 h reperfusion in mice, while ischemia-mediated cardiac remodeling was induced by four weeks of reperfusion. Also, the role of HSP47 in fibrogenesis was evaluated in cardiac fibroblasts following hypoxia-reoxygenation(HR). Extensive HSP47 was observed in murine infarcted hearts, human ischemic hearts, and cardiac fibroblasts and accelerated oxidative stress and apoptosis after myocardial IRI. Cardiac fibroblast-selective HSP47 overexpression exacerbated cardiac dysfunction caused by chronic myocardial IRI and presented deteriorative fibrosis and cell proliferation.HSP47 upregulation in cardiac fibroblasts promoted TGFβ1-Smad4 pathway activation and Smad4 deubiquitination by recruiting ubiquitin-specific peptidase 10(USP10) in fibroblasts. However, cardiac fibroblast specific USP10 deficiency abolished HSP47-mediated fibrogenesis in hearts. Moreover, blockage of HSP47 with Col003 disturbed fibrogenesis in fibroblasts following HR. Altogether, cardiac fibroblast HSP47 aggravates fibrosis post-myocardial IRI by enhancing USP10-dependent Smad4 deubiquitination,which provided a potential strategy for myocardial IRI and cardiac remodeling. | Saiyang Xie Yun Xing Wenke Shi Min Zhang Mengya Chen Wenxi Fang Shiqiang Liu Tong Zhang Xiaofeng Zeng Si Chen Shasha Wang Wei Deng Qizhu Tang | 2022 | Acta Pharmaceutica Sinica B2022,12,11: | 3 |
| 14 | Tracing of dye molecules in living plants through NaGdF_4:Yb^(3+),Er^(3+)fluorescent nanoprobes显示文摘In this paper, we demonstrated trace of dye molecules in living plants. The NaGdF4:Yb^(3+),Er^(3+) nanoparticles probe was used to detect the rhodamine B(RhB) in bean sprout. It is found that the fluorescencedye can be efficiently imbibed during the growing process and the absorbance presented a position dependence effect, which was supported by the upconversion spectra and the fluorescent image characterization. In addition, the concentration of the residual RhB in bean sprout can be efficiently traced by the synthesized probe based on the fluorescent resonant energy transfer. Finally, the relation between the excitation power, concentration and the ratio of yellow to green emission are discussed in detail. These results can be helpful in understanding the RhB dye molecules absorbance process in vegetable growth and provide an efficient way to trace the residual dyes in vivo plant. | Xiaofeng Wu Ya'nan Zhang Shiping Zhan Jin Li Guozheng Nie Shigang Hu Cong Yan Shaobing Wu Shengbin Cheng Junshan Hu Lichun Shi Yunxin Liu | 2019 | Journal of Rare Earths2019,37,3: | 3 |
| 15 | Design for aircraft engine multi-objective controllers with switching characteristics显示文摘The aircraft engine multi-loop control system is described and the switching control theory is introduced to solve the regulating and protecting control problems in this paper. The aircraft engine multi-loop control system is firstly described and the control problems are formulated. Secondly, the theory of the smooth switching control is devoted and a new extended scheme for the smooth switching of a switched control system is introduced. Then, for the key technologies of aero-engines switching control, a design algorithm is presented which can determine which candidate controller should be put in feedback with the plant to achieve a desired performance and the procedure to design the aircraft engine multi-loop control system is detailed. The switching performance objectives and the switching scheme are given and a family of PID controllers and compensators is designed. The simulation shows that using the switching control design method can not only improve the dynamic performance of the aircraft engine control system and reduce the switching times, but also guarantee the stability in some peculiar occasions. | Liu Xiaofeng Shi Jing Qi Yiwen Yuan Ye | 2014 | Chinese Journal of Aeronautics2014,27,5: | 3 |
| 16 | Recent Advances in Carbon Nanodots:Properties and Applications in Cancer Diagnosis and Treatment显示文摘Cancer is a serious threat to human health.Survival rates of cancer patients are highly dependent on the early diagnosis and treatment.Carbon nanodots(CDs),a rising star of carbon nanomaterial family,can be developed as a promising terrace for cell labeling,bioimaging,drug delivery,diagnosis,and therapy by virtue of many superior properties including unique photo-luminescence properties,low toxicity,excellent biocompatibility,and easy functionalization.In this mini review,we present the recent progress in fundamental properties of CDs,and highlight their bioapplications in cancer diagnosis and treatment. | Xiaofeng Li Lihong Shi Lin Li Chuan Dong Chen-zhong Li Shaomin Shuang | 2019 | Journal of Analysis and Testing2019,3,1: | 2 |
| 17 | In situ growth of NiS_(2) nanosheet array on Ni foil as cathode to improve the performance of lithium/sodium-sulfur batteries显示文摘The NiS;nanosheet array on Ni foil(NiS2/NF)was prepared using an in situ growth strategy and sulfidation method and was used as the cathode of lithium sulfur battery.The unique nanostructure of the NiS;nanosheet array can provide abundant active sites for the adsorption and chemical action of polysulfides.Compared with the sulfur powder coated pure NF(pure NF-S)for lithium sulfur battery,the sulfur powder coated NiS_(2)/NF(NiS_(2)/NF-S)electrode exhibits superior electrochemical performance.Specifically,the NiS_(2)/NF-S delivered a high reversible capacity of 1007.5 m Ah g^(-1) at a current density of 0.1 C(1 C=1675 mA g^(-1))and kept 74.5% of the initial capacity at 1.0 C after 200 cycles,indicating the great promise of NiS_(2)/NF-S as the cathode of lithium sulfur battery.In addition,the NiS_(2)/NF-S electrode also showed satisfactory electrochemical performance when used as the cathode for sodium sulfur battery. | FAN MouPing CHEN YuanMao KE Xi HUANG ZeXi CHEN YouChen WU WenLi QU XiaoFeng SHI ZhiCong GUO ZaiPing | 2022 | Science China(Technological Sciences)2022,65,1: | 2 |
| 18 | Preparation of Mg,N-co-doped lignin adsorbents for enhanced selectivity and high adsorption capacity of As(Ⅴ) from wastewater显示文摘Among various environmental problems,water pollution has drawn more and more attention.To develop an adsorbent with enhanced selectivity and high capacity for As(V)oxyanion,a novel lignin-based adsorbent was prepared by doping with N and modifying with Mg^(2+),using thiethylenetetramine(TETA)and MgCl_(2) as the source of N and Mg^(2+),respectively.N-doped lignin(NL)shows a high selectivity for As(Ⅴ),which is further enhanced by modifying with Mg^(2+)(MNL).MNL shows an excellent reusability.The adsorption isotherms and kinetics of MNL for As(Ⅴ)follow Langmuir isotherms model and pseudo-second-order kinetics model,respectively.The adsorption of MNL for As(Ⅴ)achieved a maximum adsorption capacity of 687.46 mg g^(−1) and the equilibrium was established within 30 min.This study offers a novel idea on the recycle of the waste of paper industry and provides a new technology for As(Ⅴ)adsorption from wastewater. | Xiaofeng Shi Junmao Hong Chao Wang Sifang Kong Junhua Li Duo Pan Jing Lin Qinglong Jiang Zhanhu Guo | 2021 | Particuology2021,19,5: | 2 |
| 19 | Improvement of Soil Moisture Simulation in Eurasia by the Beijing Climate Center Climate System Model from CMIP5 to CMIP6显示文摘This study provides a comprehensive evaluation of historical surface soil moisture simulation(1979-2012)over Eurasia at annual and seasonal time scales between two medium-resolution versions of the Beijing Climate Center Climate System Model(BCC-CSM)—one that is currently participating in phase 6 of the Coupled Model Intercomparison Project(CMIP6),i.e.,BCC-CSM2-MR,and the other,BCC-CSM1.1m,which participated in CMIP5.We show that BCC-CSM2-MR is more skillful in reproducing the climate mean states and standard deviations of soil moisture,with pattern correlations increased and biases reduced significantly.BCC-CSM2-MR performs better in capturing the first two primary patterns of soil moisture anomalies,where the period of the corresponding time series is closer to that of reference data.Comparisons show that BCC-CSM2-MR performs at a high level among multiple models of CMIP6 in terms of centered pattern correlation and“amplitude of variation”(relative standard deviation).In general,the centered pattern correlation of BCC-CSM2-MR,ranging from 0.61 to 0.87,is higher than the multi-model mean of CMIP6,and the relative standard deviation is 0.75,which surmounts the overestimations in most of the CMIP6 models.Due to the vital role played by precipitation in land-atmosphere interaction,possible causes of the improvement of soil moisture simulation are further related to precipitation in BCC-CSM2-MR.The results indicate that a better description of the relationship between soil moisture and precipitation and a better reproduction of the climate mean precipitation by the model may result in the improved performance of soil moisture simulation. | Yinghan SANG Hong-Li REN Xueli SHI Xiaofeng XU Haishan CHEN | 2021 | Advances in Atmospheric Sciences2021,38,2: | 2 |
| 20 | Generation of sp3111 transgenic RNAi mice via permanent integration of small hairpin RNAs in repopulating spermatogonial cells in vivo显示文摘spermatid 特定的基因, sp3111,是 four-transmembrane 基因家庭的一个新成员。然而,它的繁殖生物功能留下逃犯。这研究的目的是为进一步在它的繁殖功能上学习 sp3111 基因表示的抑制的效果建立一个 sp3111 击倒的雄的老鼠模型。pSUPER-sp3111-shRNA 的 Recombinant 向量,对老鼠 sp3111 mRNA 的不同区域包含抄录功能的小发卡 RNA 顺序,被构造并且识别。然后,线性化的 recombinant 向量被 electroporation 注入成熟老鼠睾丸和 transfected 到 spermatogonial 房间产生 sp3111 转基因的 RNAi 老鼠。这些 electroporated 男性老鼠与野类型的女性一起被交配在 electroporation 和他们的子孙以后的 30 天被荧光显微镜学和 PCR 两个都检验。在 vivo 的 sp3111 mRNA 的睾丸表达式上的 RNAi 的抑制效率是超过30%并且能稳定地被传给 F3 产生,这被发现,并且与野类型的雄的鼠标相比,吗 sp3111 RNAi 雄的鼠标的后代的吝啬的数字从 11 被减少???????????????????????栠吗?? | Weili Shi Tingyan Shi Zheyu Chen Jufang Lin Xiaofeng Jia Jian Wang Huijuan Shi | 2010 | Acta Biochimica et Biophysica Sinica2010,42,2: | 2 |