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28篇 您的检索式:作者名="Yating Sun"
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1Differential responses of short-term soil respiration dynamics to the experimental addition of nitrogen and water in the temperate semi-arid steppe of Inner Mongolia, China显示文摘We examined the effects of simulated rainfall and increasing N supply of different levels on CO2 pulse emission from typical Inner Mongolian steppe soil using the static opaque chamber technique, respectively in a dry June and a rainy August. The treatments included NH4NO3 additions at rates of 0, 5, 10, and 20 g N/(m2·year) with or without water. Immediately after the experimental simulated rainfall events, the CO2 effluxes in the watering plots without N addition(WCK) increased greatly and reached the maximum value at 2 hr. However, the efflux level reverted to the background level within 48 hr. The cumulative CO2 effluxes in the soil ranged from 5.60 to 6.49 g C/m2over 48 hr after a single water application, thus showing an increase of approximately 148.64% and 48.36% in the effluxes during both observation periods. By contrast, the addition of different N levels without water addition did not result in a significant change in soil respiration in the short term. Two-way ANOVA showed that the effects of the interaction between water and N addition were insignificant in short-term soil CO2 effluxes in the soil. The cumulative soil CO2fluxes of different treatments over 48 hr accounted for approximately 5.34% to 6.91% and 2.36% to 2.93% of annual C emission in both experimental periods. These results stress the need for improving the sampling frequency after rainfall in future studies to ensure more accurate evaluation of the grassland C emission contribution.Yuchun Qi Xinchao Liu Yunshe Dong Qin Peng Yating He Liangjie Sun Junqiang Jia Congcong Cao 2014Journal of Environmental Sciences2014,26,4:17
2Litter decomposition and C and N dynamics as affected by N additions in a semi-arid temperate steppe, Inner Mongolia of China显示文摘Litter decomposition is the fundamental process in nutrient cycling and soil carbon(C) sequestration in terrestrial ecosystems. The global-wide increase in nitrogen(N) inputs is expected to alter litter decomposition and,ultimately, affect ecosystem C storage and nutrient status. Temperate grassland ecosystems in China are usually N-deficient and particularly sensitive to the changes in exogenous N additions. In this paper, we conducted a 1,200-day in situ experiment in a typical semi-arid temperate steppe in Inner Mongolia to investigate the litter decomposition as well as the dynamics of litter C and N concentrations under three N addition levels(low N with 50 kg N/(hm2?a)(LN), medium N with 100 kg N/(hm2?a)(MN), and high N with 200 kg N/(hm2?a)(HN)) and three N addition forms(ammonium-N-based with 100 kg N/(hm2?a) as ammonium sulfate(AS), nitrate-N-based with 100 kg N/(hm2?a) as sodium nitrate(SN), and mixed-N-based with 100 kg N/(hm2?a) as calcium ammonium nitrate(CAN)) compared to control with no N addition(CK). The results indicated that the litter mass remaining in all N treatments exhibited a similar decomposition pattern: fast decomposition within the initial 120 days, followed by a relatively slow decomposition in the remaining observation period(120–1,200 days). The decomposition pattern in each treatment was fitted well in two split-phase models, namely, a single exponential decay model in phase I(<398 days) and a linear decay function in phase II(≥398 days). The three N addition levels exerted insignificant effects on litter decomposition in the early stages(<398 days, phase I; P>0.05). However, MN and HN treatments inhibited litter mass loss after 398 and 746 days, respectively(P<0.05). AS and SN treatments exerted similar effects on litter mass remaining during the entire decomposition period(P>0.05). The effects of these two N addition forms differed greatly from those of CAN after 746 and 1,053 days, respectively(P<0.05). During the decomposition period, N concentrations in the decomposing litter increased whereas C concentrations decreased, which also led to an exponential decrease in litter C:N ratios in all treatments. No significant effects were induced by N addition levels and forms on litter C and N concentrations(P>0.05). Our results indicated that exogenous N additions could exhibit neutral or inhibitory effects on litter decomposition, and the inhibitory effects of N additions on litter decomposition in the final decay stages are not caused by the changes in the chemical qualities of the litter, such as endogenous N and C concentrations. These results will provide an important data basis for the simulation and prediction of C cycle processes in future N-deposition scenarios.Qin PENG YuChun QI YunShe DONG YaTing HE ShengSheng XIAO XinChao LIU LiangJie SUN JunQiang JIA ShuFang GUO CongCong CAO 2014Journal of Arid Land2014,6,4:16
3Immunomodulatory effect of human amniotic epithelial cells on restoration of ovarian function in mice with autoimmune ovarian disease显示文摘Autoimmune ovarian disease(AOD)is considered to be a major cause of premature ovarian failure(POF).The immunomodulatory properties of human amniotic epithelial cells(hAECs)have been studied in many disease models.We previously reported that hAECs restored ovarian function in chemotherapy-induced POF mice,but the immunomodulatory mechanism of hAECs is still unclear.To investigate the effect of hAECs on recipient mice,especially on regulatory Treg cells,hAECs and hAEC-conditioned medium(hAEC-CM)were intravenously injected into AOD mice immunized with zona pellucida protein 3 peptides(pZP3).Ovarian function was evaluated through estrous cycle,hormone secretion,follicle development,and cell apoptosis analysis.Immune cells including CD3,CD4,CD8 and Treg cells in the spleens were tested by flow cytometry.To elucidate the effect of hAEC-CM on macrophage function,inflammation model in vitrowas established in RAW264.7 cells induced by lipopolysaccharide(LPS).hAECs and hAEC-CM regulated estrous cycles,promoted follicle development,ameliorated cell apoptosis and fibrosis in ovaries of AOD mice.In addition,hAECs significantly reversed the decrease of pZP3-induced Treg cells in the spleens.In vitro,hAEC-CM significantly inhibited the inflammatory reaction induced by LPS in RAW264.7 cells via up-regulating the expression of M2 macrophage genes.Further study demonstrated that hAECsecreted transforming growth factor-beta and macrophage inhibitory factor played important roles in the macrophage polarization and migration under inflammatory stimulation.Taken together,hAECs restored ovarian function by up-regulating Treg cells in the spleens and reduced the inflammatory reaction via modulating the activated macrophage function in a paracrine manner in the ovaries of AOD mice.Qiuwan Zhang Yating Huang Junyan Sun Tingting Gu Xiaoyan Shao Dongmei Lai 2019Acta Biochimica et Biophysica Sinica2019,51,8:14
4Effects of a conversion from grassland to cropland on the different soil organic carbon fractions in Inner Mongolia, China显示文摘耕作是除放牧以外影响草地生态系统的最重要的人的活动之一,但是它土壤上的影响总计器官的碳(C) ,特别在有倾向的器官的 C 部分上还充分没被理解。在这份报纸,在土壤收割不同部分的器官的 C 水池的角色在中国,和在不同 C 部分之间的关系的内部蒙古在一个草地大草原区域被调查也被讨论。结果显示在大草原和栽培土地的不同 C 部分的集中都与土壤深度日益增多地减少了。在到为 36 年的春天小麦地的从大草原的变换以后,在 0~100 厘米土壤深度的全部的器官的碳( TOC )集中在12.3%~28.2%减少了,并且表面土壤地平线的 TOC ,特别那些更显著地 030 厘米减少了( p < 0.01 )。溶解的器官的碳(文档) 和在 040 厘米的深度的微生物引起的生物资源碳(MBC ) 被发现分别地在 66.7% ~ 77.1% 和 36.5% ~ 42.4% 减少了。在 S。baicalensis 大草原,春天小麦地里的到 TOC 的文档在 0.52% 和 0.60% 之间改变了的土壤的比率,和那些仅仅在 0.18%0.20% 的范围。在春天小麦的微生物引起的商(qMBs ) 回答,从 1.11% ~ 1.40% 变化,也是比在 S 的那些低的。baicalensis 大草原,它在 1.50%1.63% 的范围。文档的变化对耕作骚乱更敏感。土壤 TOC,文档,和 MBC 是显著地积极的在 S 与对方一起相关。baicalensis 大草原,但是在春天小麦地里,在文档之间的相互关系和在文档和 MBC 之间的 TOC 和那没到达 0.05 的意义水平。QI Yuchun DONG Yunshe PENG Qin XIAO Shengsheng HE Yating LIU Xinchao SUN Liangjie JIA Junqiang YANG Zhijie 2012Journal of Geographical Sciences2012,22,2:13
5The study on the safety and efficacy of amnion graft for preventing the recurrence of moderate to severe intrauterine adhesions显示文摘Transcervical resection of adhesion(TCRA)is the standard treatment for the intrauterine adhesions,but the recurrence of adhesions is a tough problem for the gynecologist.In addition,the therapeutic strategy after TCRA about prevention of recurrence remains controversial especially for the patients with moderate to severe intrauterine adhesions(IUAs).Hence,we designed this study to explore the safety and efficacy of fresh amnion grafts for preventing the recurrence after TCRA for patients with moderate to severe IUAs.One hundred patients with moderate to severe IUAs who presented with a history of hypomenorrhea,amenorrhea and infertility were included in the study from January 2015 to December 2017.Patients were divided into amnion group(52 patients)and chitosan group(48 patients).Fresh amnion grafts or intrauterine injections of chitosan were administered after TCRA.Transvaginal ultrasonography(TVUS)and hysteroscopy were performed at the first and third month after the operation.The surgical procedures for all patients were completed successfully without relevant complications.In amnion group,8 patients exhibited relapse in the first month and 2 patients in three months after surgery;in chitosan group,23 women exhibited relapse in the first month and 18 patients in three months after surgery.Statistical analysis revealed that the recurrence rate of adhesion in amnion group was significantly lower than those of chitosan group in the first and three months after surgery(P1=0.000,P2=0.000).After TCRA,fresh amnion graft plays a significant role in preventing further adhesions than injections of chitosan.Changjiang Li Aiqi Cai Congcong Sun Benyuan Wu Xinpei Chen Yanhua Mao Yingfeng Zhang Yating Gou Jie Yu Yuhan Wang Huanhuan Yu Jia Wang 2020Genes & Diseases2020,7,2:11
6MicroRNA-24 promotes pancreatic beta cells toward dedifferentiation to avoid endoplasmic reticulum stress-induced apoptosis显示文摘Current research indicates that beta cell loss in type 2 diabetes may be attributed to beta cell dedifferentiation rather than apoptosis;however,the mechanisms by which this occurs remain poorly understood.Our previous study demonstrated that elevation of microRNA-24(miR-24)in a diabetic setting caused beta cell dysfunction and replicative deficiency.In this study,we focused on the role of miR-24 in beta cell apoptosis and dedifferentiation under endoplasmic reticulum(ER)stress conditions.We found that miR-24 overabundance protected beta cells from thapsigargin-induced apoptosis at the cost of accelerating the impairment of glucosestimulated insulin secretion(GSIS)and enhancing the presence of dedifferentiation markers.Ingenuity?Pathway Analysis(IPA)revealed that elevation of miR-24 had an inhibitory effect on XBP1 and ATF4,which are downstream effectors of two key branches of ER stress,by inhibiting its direct target,Irela.Notably,elevated miR-24 initiated another pathway that targeted Mafa and decreased GSIS function in surviving beta cells,thus guiding their dedifferentiation under ER stress conditions.Our results demonstrated that the elevated miR-24,to the utmost extent,preserves beta cell mass by inhibiting apoptosis and inducing dedifFerentiation.This study not only provides a novel mechanism by which miR-24 dominates beta cell turnover under persistent metabolic stress but also offers a therapeutic consideration for treating diabetes by inducing dedifferentiated beta cells to re-differentiation.Yunxia Zhu Yi Sun Yuncai Zhou Yan Zhang Tao Zhang Yating Li Weiyan You Xiaoai Chang Li Yuan Xiao Han 2019Journal of Molecular Cell Biology2019,11,9:9
7All-solid-state BiVO4/ZnIn2S4 Z-scheme composite with efficient charge separations for improved visible light photocatalytic organics degradation显示文摘Constructing a Z-scheme is a significant approach to improve the separation of photogene rated carriers for effective organic pollutant degradation.Herein,a BiVO4/ZnIn2S4(BZ) Z-scheme composite was successfully synthesized,and applied to photodegrade methyl orange(MO) irradiated by a LED lamp.Anchoring the BiVO4 on the ZnIn2S4 nanoparticles promoted the separation of photogenerated electronholes and broadened the light response range.The detailed characterizations,including surface morphology,elements valence state,and photocurrent performance,demonstrated that the enhanced separation of photogenerated carriers was the pivotal reason for the enhanced photocatalysis reaction.Benefiting from the excellent photocatalytic characteristics,the 5% mass ratio of BZ composite presented the highest MO degradation rate of 0.00997 min^-1,which was 1.9 and 10.3 times greater than the virgin ZnIn2S4 and BiVO4,respectively.Furthermore,the BZ hybrid materials indicated a well photo-stability in the four recycling tests.Deling Yuan Mengting Sun Shoufeng Tang Yating Zhang Zetao Wang Jinbang Qi Yandi Rao Qingrui Zhang 2020Chinese Chemical Letters2020,31,2:5
8The effect of Fe-Mn minerals and seawater interface and enrich-ment mechanism of ore-forming elements of polymetallic crusts and nodules from the South China Sea显示文摘Ferromanganese crusts and nodules are important submarine mineral resources that contain various metal elements with significant economic value. In this study, polymetallic crusts and nodules obtained from the South China Sea(SCS) were determined by using X-ray power diffraction(XRD), Raman spectroscopy(RS), Fourier transform infrared spectroscopy(FTIR), and X-ray photoelectron spectroscopy(XPS) to systematically investigate and analyze the mineralogical and spectral characteristics of the Fe-Mn minerals. XRD measurements revealed that the SCS polymetallic crusts and nodules were composed of vernadite, quartz, and plagioclase. The nodules also contained todorokite. The Fe-phase minerals of the SCS crusts and nodules were composed of amorphous Fe oxide/hydroxide, and the Mn-and Fe-phases minerals exhibited relatively poor degrees of crystallization. FTIR results showed that the Fe-Mn minerals in the crusts and nodules included a large number of surface hydroxyl groups. These surface hydroxyl groups contained protons that could provide reactive sites for complexation of ore-forming elements in seawater. XPS results indicated that the surfaces of the Fe-Mn minerals mainly contained Fe, Mn, and O. Fe was present in the trivalent oxidation state, while Mn, which may contain several bivalent oxidation state, was present in the tetravalent and trivalent oxidation states. The SCS polymetallic crusts and nodules were compared with Pacific seamount crusts, and results showed that the surface hydroxyl(-OH) groups of the SCS crusts and nodules numbered more than the lattice oxygen(O^(2-)). But the lattice oxygen of Pacific seamount crusts numbered more than the surface hydroxyl groups. This characteristic indicated that the degree of crystallization of Fe-Mn minerals from the Pacific Ocean was higher than that of minerals from the South China Sea. Comprehensive studies showed that ore-forming elements in the interface between seawater and the Fe-Mn minerals in the submarine ferromanganese crusts and nodules employed the following enrichment mechanisms:(1) the metal ion complexed with the surface hydroxyl of Fe-Mn minerals to form hydroxyl complexes, which were connected by coordination bonds or stable inner-sphere complexes that exchanged protons on the mineral surfaces;(2) the charged surfaces of the minerals and metal cations formed outer-sphere complexes, which made up the electrostatic double layer, through electrostatic adsorption; and(3) the metal cations isomorphously exchanged the Mn and Fe ions of the mineral lattice structure.GUAN Yao SUN Xiaoming IANG Xiaodong SA Rina ZHOU Li HUANG Yi LIU Yating LI Xiaojie LU Rongfei WANG Chi 2017Acta Oceanologica Sinica2017,36,6:4
9Hospital Volume and Late Survival After Cancer Surgery显示文摘John D. Birkmeyer Yating Sun Sandra L. Wong Therese A. Stukel 2007Annals of Surgery2007,,5:4
10Induction of Wnt signaling antagonists and p21-activated kinase enhances cardiomyocyte proliferation during zebrafish heart regeneration显示文摘Heart regeneration occurs by dedifferentiation and proliferation of pre-existing cardiomyocytes(CMs).However,the signaling mechanisms by which injury induces CM renewal remain incompletely understood.Here,we find that cardiac injury in zebrafish induces expression of the secreted Wnt inhibitors,including Dickkopf 1(Dkkl),Dkk3,secreted Frizzled-related protein 1(sFrpl),and sFrp2,in cardiac tissue adjacent to injury sites.Experimental blocking of Wnt activity via Dkkl overexpression enhances CM proliferation and heart regeneration,whereas ectopic activation of Wnt8 signaling blunts injury-induced CM dedifferentiation and proliferation.Although Wnt signaling is dampened upon injury,the cytoplasmic β-catenin is unexpectedly increased at disarrayed CM sarcomeres in myocardial wound edges.Our analyses indicated that p21-activated kinase 2(Pak2)is induced at regenerating CMs,where it phosphorylates cytoplasmic β-catenin at Ser 675 and increases its stability at disassembled sarcomeres.Myocardial-specific induction of the phospho-mimeticβ-catenin(S675E)enhances CM dedifferentiation and sarcomere disassembly in response to injury.Conversely,inactivation of Pak2 kinase activity reduces the Ser 675-phosphorylatedβ-catenin(pS675-β-catenin)and attenuates CM sarcomere disorganization and dedifferentiation・Taken together,these findings demonstrate that coordination of Wnt signaling inhibition and Pak2/pS675-βYatenin signaling enhances zebrafish heart regeneration by supporting CM dedifferentiation and proliferation.Xiangwen Peng Kaa Seng Lai Peilu She Junsu Kang Tingting Wang Guobao Li Yating Zhou jianjian Sun Daqing Jin Xiaolei Xu Lujian Liao Jiandong Liu Ethan Lee Kenneth D.Poss Tao P.Zhong 2021Journal of Molecular Cell Biology2021,13,1:3
11Response of soil N_2O emissions to precipitation pulses under different nitrogen availabilities in a semiarid temperate steppe of Inner Mongolia, China显示文摘Short-term nitrous oxide(N2O) pulse emissions caused by precipitation account for a considerable portion of the annual N2O emissions and are greatly influenced by soil nitrogen(N) dynamics. However, in Chinese semiarid temperate steppes, the response of N2O emissions to the coupling changes of precipitation and soil N availability is not yet fully understood. In this study, we conducted two 7-day field experiments in a semiarid temperate typical steppe of Inner Mongolia, China, to investigate the N2O emission pulses resulting from artificial precipitation events(approximately equivalent to 10.0 mm rainfall) under four N addition levels(0, 5, 10 and 20 g N/(m2·a)) using the static opaque chamber technique. The results show that the simulated rainfall during the dry period in 2010 caused greater short-term emission bursts than that during the relatively rainy observation period in 2011(P<0.05). No significant increase was observed for either the N2O peak effluxes or the weekly cumulative emissions(P>0.05) with single water addition. The peak values of N2O efflux increased with the increasing N input. Only the treatments with water and medium(WN10) or high N addition(WN20) significantly increased the cumulative N2O emissions(P<0.01) in both experimental periods. Under drought condition, the variations in soil N2O effluxes were positively correlated with the soil NH4-N concentrations in the three N input treatments(WN5, WN10, and WN20). Besides, the soil moisture and temperature also greatly influenced the N2O pulse emissions, particularly the N2O pulse under the relatively rainy soil condition or in the treatments without N addition(ZN and ZWN). The responses of the plant metabolism to the varying precipitation distribution and the length of drought period prior to rainfall could greatly affect the soil N dynamics and N2O emission pulses in semiarid grasslands.XinChao LIU YuChun QI YunShe DONG Qin PENG YaTing HE LiangJie SUN JunQiang JIA CongCong CAO 2014Journal of Arid Land2014,6,4:3
12Heavy soil drying during mid-to-late grain filling stage of the main crop to reduce yield loss of the ratoon crop in a mechanized rice ratooning system显示文摘Yield loss(Y_(Loss)) in the ratoon crop due to crushing damage to left stubble from mechanical harvesting of the main crop is a constraint for wide adoption of mechanized rice ratooning technology.Soil drying before the harvest of the main crop has been proposed to overcome this problem.The objective of this study was to determine the effect of soil drying during the mid-to-late grain filling stage of the main crop on grain yield of the ratoon crop in a mechanized rice ratooning system.Field experiments were conducted to compare Y_(Loss) between light(LD) and heavy(HD) soil drying treatments in Hubei province,central China in 2017 and 2018.Y_(Loss) was calculated as the percentage of yield reduction in the ratoon crop with the main crop harvested mechanically,relative to the grain yield of the ratoon crop with the main crop harvested manually.In comparison with LD,soil hardness was increased by 42.8%-84.7% in HD at the 5-20 cm soil depth at maturity of the main crop.Soil hardness at 5 and 10 cm depths reached respectively 4.05 and 7.07 kg cm^(-2) in HD.Soil drying treatment did not significantly affect the grain yield of the main crop.Under mechanical harvesting of the main crop,HD increased the grain yield of the ratoon crop by 9.4% relative to LD.Consequently,Y_(Loss) was only 3.4% in HD,in contrast to 16.3% in LD.The differences in grain yield and Y_(Loos) between the two soil drying treatments were explained mainly by panicles m^(-2),which was increased significantly by HD in the track zone of the ratoon crop compared with LD.These results suggest that heavy soil drying practice during the mid-to-late grain filling stage of the main crop is effective for reducing Y_(Loss) of the ratoon crop in a mechanized rice ratooning system.Chang Zheng Yuechao Wang Shen Yuan Sen Xiao Yating Sun Jianliang Huang Shaobing Peng 2022The Crop Journal2022,10,1:3
13Quantitative climatic reconstruction of the Last Glacial Maximum in China显示文摘Quantitative paleoclimatic reconstruction is crucial for understanding the operation and evolution of the global climate system.For example,a quantitative paleoclimatic reconstruction for the Last Glacial Maximum(18±2 ka14C,LGM)is fundamental to understanding the evolution of Earth’s climate during the last glacial-interglacial cycle.Previous quantitative palaeoclimate reconstructions in China are generally based on statistical comparison of modern pollen assemblages and modern climate data.These methods are based on the premise that vegetation-climate interactions remain the same through time,and implicitly assume that the interactions are independent of changes in seasonality and atmospheric CO2concentration.However,these assumptions may not always be valid,which may affect the reconstructions.Here,we present the results of a quantitative study of the LGM climate of China based on an improved inverse vegetation model which incorporates physiological processes combined with a new China Quaternary Pollen Database.The results indicate that during the LGM,mean annual temperature(ANNT),mean temperature of the coldest month(MTCO)and mean temperature of the warmest month in China were lower by^5.6±0.8,~11.0±1.6 and^2.6±0.9°C,respectively,compared to today,and that the changes in ANNT were mainly due to the decrease of MTCO.The ANNT decrease in southern China was^5.5±0.5°C.Mean annual precipitation was lower by^46.3±17.8 mm compared to today and was especially low in northern China(~51.2±21.4 mm)due to the decrease in summer rainfall.Comparison of our results with recent outputs from paleoclimatic modelling reveals that while the latter are broadly consistent with our estimated changes in mean annual climatic parameters,there are substantial differences in the seasonal climatic parameters.Our results highlight the crucial importance of developing seasonal simulation on paleoclimatic models,as well as the need to improve the quality of paleoclimatic reconstructions based on proxy records from geological archives.Haibin WU Qin LI Yanyan YU Aizhi SUN Yating LIN Wenqi JIANG Yunli LUO 2019Science China Earth Sciences2019,62,8:3
14A full-process intelligent trial system for smart court显示文摘In constructing a smart court,to provide intelligent assistance for achieving more efficient,fair,and explainable trial proceedings,we propose a full-process intelligent trial system(FITS).In the proposed FITS,we introduce essential tasks for constructing a smart court,including information extraction,evidence classification,question generation,dialogue summarization,judgment prediction,and judgment document generation.Specifically,the preliminary work involves extracting elements from legal texts to assist the judge in identifying the gist of the case efficiently.With the extracted attributes,we can justify each piece of evidence’s validity by establishing its consistency across all evidence.During the trial process,we design an automatic questioning robot to assist the judge in presiding over the trial.It consists of a finite state machine representing procedural questioning and a deep learning model for generating factual questions by encoding the context of utterance in a court debate.Furthermore,FITS summarizes the controversy focuses that arise from a court debate in real time,constructed under a multi-task learning framework,and generates a summarized trial transcript in the dialogue inspectional summarization(DIS)module.To support the judge in making a decision,we adopt first-order logic to express legal knowledge and embed it in deep neural networks(DNNs)to predict judgments.Finally,we propose an attentional and counterfactual natural language generation(AC-NLG)to generate the court’s judgment.Bin WEI Kun KUANG Changlong SUN Jun FENG Yating ZHANG Xinli ZHU Jianghong ZHOU Yinsheng ZHAI Fei WU 2022Frontiers of Information Technology & Electronic Engineering2022,23,2:2
15Filling Ti_(3)C_(2)T_(x)nanosheets into melamine foam towards a highly compressible all-in-one supercapacitor显示文摘The development of compressible supercapacitors strongly relies on the design of electrode materials combining superior compressibility,high conductivity with the stable electrochemical cycling performance.In this work,we report a facile yet scalable strategy to construct a highly compressible supercapacitor by integrating the current collector,active materials and the separator into one device.We use the highly compressive melamine foam(MF)as scaffold and the Ti_(3)C_(2)T_(x)nanosheets as the active materials.Filling the few-layer Ti_(3)C_(2)T_(x)nanosheets into the skeleton of MF by capillary force followed by freeze-drying yields the MF/Ti_(3)C_(2)T_(x)composite with superior structural integrity that can be compressed at a large strain of 50%for 100 cycles.The electrochemical performances of the all-in-one supercapacitor were systematically investigated under diverse compression strains.The improved conductivity and reduced ion diffusion length allow the all-in-one supercapacitor to exhibit fast ion and electron kinetics even at high strain of 60%,delivering a maximal volumetric specific energy of 0.37 mWh∙cm^(-3)at power density of 0.42 mW∙cm^(-3)and extraordinary cycling performance during the 2,500 compression cycles.Rui Guo Xiying Han Peng Yuan Xuexia He Qi Li Jie Sun Liqin Dang Zonghuai Liu Yating Zhang Zhibin Lei 2022Nano Research2022,15,4:1
16Examination of microbial fuel cell start-up times with domestic wastewater and additional amendments 显示文摘LIU G YATES M D CHENG S CALL D F SUN D LOGAN B E 2011Bioresour Technol2011,102,15:1
17The genetic architecture of maize flowering time 显示文摘Buckler E Holland J Bradbury P Aeharya C Brown P Browne C Ersoz E Flint-Garcia S Garcia A Glaubitz J Goodman M Harjes C Guill K Kroon D Larsson S Lepak N Li H Mitchell S Pressoir G Peiffer J Rosas M Rocheford T Romay M Romero S Salvo S Villeda H Silva H Sun Q Tian F Upadyayula N Ware D Yates H Yu J Zhang Z Kresovich S McMullen M 2009Science2009,325,5941:1
18Templated synthesis of imine-based covalent organic framework hollow nanospheres for stable potassium-ion batteries显示文摘Covalent organic frameworks(COFs), as highly tunable porous crystalline materials, have promising applications in potassium-ion batteries(PIBs) due to their abundant charge carrier transport channels and excellent structural stability. However, the excessive stacking of interlayer electron clouds makes it difficult to expose internal active sites. Strategies to design functional COFs with controllable morphology and copious active sites are promising but still challenging. Herein, by utilizing the condensation between1,3,5-triformylbenzene(TFB) and p-phenylenediamine(PPD) and using amino-modified SiO_(2) nanospheres as templates, we synthesize core-shell NH_(2)-SiO_(2)@TP-COF. Through NaOH etching of NH_(2)-SiO_(2)@TP-COF, we obtain imine-based TP-COF hollow nanospheres, which shows excellent potassium storage performance when applied to the anode for PIBs. Ex-situ analysis and density functional theory calculations reveal that C=N groups and benzenes are active sites for K^(+) storage.Jianlu Sun Ruiqi Tian Yuehua Man Yating Fei Xiaosi Zhou 2023Chinese Chemical Letters2023,34,7:0
19The INFLUENCE OF IMMEDIATE TASK REPETITION WITH CORRECTIVE FEEDBACK ON VOCATIONAL COLLEGE EFL LEARNERS’ ORAL ACCURACY AND FLUENCY显示文摘This paper aims at investigating the effects of immediate task repetition along with c orrective feedback on vocational college students’oral fluency and accuracy based on the information processing theory.To achieve this end,two groups of students participated in this study,and their voices while finishing an oral narrative task were recorded.The findings showed that combined with corrective feedback,immediate same task repetition which helps speakers save more attention resources has a better effect on vocational college EFL learners’oral fluency and accuracy.But the influence on fluency is more significant as the repetition helps relieve the cognitive stress.What’s more,the effect can transfer to the performance of a new oral task.The findings might be enlightening for the implementation of TBLT with the purpose of improving vocational college EFL learners’oral output.Sun Yating 2018校园英语2018,,23:0
20Strengthened influence of the East Asian trough on spring extreme precipitation variability over eastern Southwest China after the late 1980s显示文摘本文研究表明东亚大槽强度与中国西南地区东部春季极端降水的关系在20世纪80年代末后显著增强,这可能与东亚大槽自身变率的年代际变化有关.在80年代末之后,东亚大槽的变率显著增强,其对应的大气环流异常也偏强,范围偏大,可以显著影响西南地区东部的水汽和动力条件,从而引起该地区春季极端降水的显著变化.而在80年代末之前,东亚大槽的变率偏弱,其对应的大气环流异常也偏弱,范围偏小,因此不能对西南地区东部春季极端降水的变化产生显著影响.Yating Nan Jianqi Sun Mengqi Zhang Haixu Hong Junpeng Yuan 2022Atmospheric and Oceanic Science Letters2022,15,5:0
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