|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Electrospun Nanofibrous Materials for Wound Healing显示文摘Wound dressing materials which are capable of meeting the demands of accelerating wound closure and promoting wound healing process have being highly desired.Electrospun nanofibrous materials show great application potentials for wound healing owing to relatively large surface area,better mimicry of native extracellular matrix,adjustable waterproofness and breathability,and programmable drug delivery process.In this review article,we begin with a discussion of wound healing process and current commercial wound dressing materials.Then,we emphasize on electrospun nanofibrous materials for wound dressing,covering the efforts for controlling fiber alignment and morphology,constructing 3D scaffolds,developing waterproof-breathable membrane,governing drug delivery performance,and regulating stem cell behavior.Finally,we finish with challenges and future prospects of electrospun nanofibrous materials for wound dressings. | Yuping Dong Yuqi Zheng Keyan Zhang Yueming Yao Lihuan Wang Xiaoran Li Jianyong Yu Bin Ding | 2020 | Advanced Fiber Materials2020，2，4： | 10 |
| 2 | PROVIDING THE STUDENTS WITH EFFECTIVE FEEDBACK IN THE WRITING PROCESS显示文摘This paper focuses on providing effective feedback for the students in the writing process.Excessivemarking is defective as it reduces their motivation,whereas minimal marking is recommended as itimproves their inner drive for writing.In addition,there are other forms of feedback,such as peerfeedback,comments and face-to-face discussions.The students are required to act on the feedback totheir own advantage.It has been proved that the proposed correcting method is time-saving,chal-lenging and efficient. | Zheng Yuqi Southeast University,Nanjing | 1999 | Chinese Journal of Applied Linguistics1999，22，4： | 9 |
| 3 | Solution Domain Boundary Analysis Method and Its Application in Parameter Spaces of Nonlinear Gear System显示文摘Mastering the influence laws of parameters on the solution structure of nonlinear systems is the basis of carrying out vibration isolation and control.Many researches on solution structure and bifurcation phenomenon in parameter spaces are carried out broadly in many fields,and the research on nonlinear gear systems has attracted the attention of many scholars.But there is little study on the solution domain boundary of nonlinear gear systems.For a periodic non-autonomous nonlinear dynamic system with several control parameters,a solution domain boundary analysis method of nonlinear systems in parameter spaces is proposed,which combines the cell mapping method based on Poincaré point mapping in phase spaces with the domain decomposition technique of parameter spaces.The cell mapping is known as a global analysis method to analyze the global behavior of a nonlinear dynamic system with finite dimensions,and the basic idea of domain decomposition techniques is to divide and rule.The method is applied to analyze the solution domain boundaries in parameter spaces of a nonlinear gear system.The distribution of different period domains,chaos domain and the domain boundaries between different period domains and chaotic domain are obtained in control parameter spaces constituted by meshing damping ratio with excitation frequency,fluctuation coefficient of meshing stiffness and average exciting force respectively by calculation.The calculation results show that as the meshing damping increases,the responses of the system change towards a single motion,while the variations of the excitation frequency,meshing stiffness and exciting force make the solution domain presenting diversity.The proposed research contribution provides evidence for vibration control and parameter design of the gear system,and confirms the validity of the solution domain boundary analysis method. | LIU Haixia WANG Sanmin GUO Jiashun ZHENG Yuqi | 2011 | Chinese Journal of Mechanical Engineering2011，24，3： | 7 |
| 4 | Coronavirus disease 2019 (COVID-19) pandemic: how countries shouldbuild more resilient health systems for preparedness and response显示文摘Objective: A resilient health system plays a crucial role in pandemic preparedness and response. Althoughthe World Health Organization (WHO) has required all states parties to strengthen core capacities to respondto public health emergencies under the International Health Regulations (2005), the actions of most countriesto combating coronavirus disease 2019 (COVID-19) has showed that they are not well-prepared. This crosssectionalstudy aimed to examine the health system resilience of selected countries and analyze their strategiesand measures in response to the COVID-19 pandemic.Methods: This study selected five countries including the Iran, Japan, Republic of Korea (South Korea), the U.K.,and the U.S., based on the severity of the national epidemic, the geographical location, and the developmentlevel. Cumulative number of death cases derived from WHO COVID-19 dashboard was used to measure theseverity of the impact of the pandemic in each country;WHO State Parties Self-Assessment Annual Reporting (SPAR)Scores and Global Health Security (GHS) Index were applied to measure the national health system resilience;and research articles and press materials were summarized to identify the strategies and measures adopted bycountries during response to COVID-19. This study applied the resilient health systems framework to analyzehealth system resilience in the selected countries from five dimensions, including awareness, diversity, selfregulation,integration and adaptation.Results: The SPAR Scores and GHS Index of the four developed countries, Japan, South Korea, the U.K. and theU.S. were above the global and regional averages;the SPAR Scores of Iran were above the global average whilethe GHI Index lain below the global average. In terms of response strategies, Japan, the U.K. and the U.S. investedmore health resources in the treatment of severe patients, while South Korea and Iran had adopted a strategyof extensive testing and identification of suspected patients. In terms of specific measures, all the five countriesadopted measures such as restrictions on entry and international travel, closure of schools and industries,lockdown and quarantine. Nevertheless, the effectiveness of implementing these measures varied acrosscountries, based on the response strategies.Conclusion: Although SPAR Scores and GHS Index have evaluated the national core capacities for preparednessand response, the actions to cope with the COVID-19 pandemic has revealed the fact that most countries stilldo not build resilient health systems in response to public health emergencies. Health system strengtheningand health security efforts should be pursued in tandem, as part of the same mutually reinforcing approach todeveloping resilient health systems. | Zhebin Wang Yuqi Duan Yinzi Jin Zhi-Jie Zheng | 2020 | Global Health Journal2020，4，4： | 4 |
| 5 | Screening of amino acids in dried blood spots by stable isotope derivatization-liquid chromatography-electrospray ionization mass spectrometry显示文摘Direct infusion mass spectrometry(DIMS) is a powerful technique in clinical diagnosis for screening neonatal amino acid metabolic disorders from dried blood spots(DBS).However,DIMS sometimes generated false-positive results for analysis of amino acids.In this work,we utilized a stable isotope derivatization method,combining with liquid chromatography tandem mass spectrometry(SID-LC-MS),to improve the specificity for screening amino acids in DBS specimens.A pair of isotope reagents,p-(dimethylamino)phenyl isothiocyanate(DMAP-NCS) and 4-isothiocyanato-N,N-bis(methyl-[2H2])aniline([2H4]DMAP-NCS),was synthesized and used to label amino acids in DBS specimens.The [2H4]DMAP-NCS labelled amino acid standards were used as internal standards to compensate the matrix effect.This method was validated by measuring linearity,recovery and accuracy.The results showed that the developed SID-LC-MS method can be used for sensitive and selective determination of 12 diagnostically important amino acids in DBS specimens. | Huaming Xiao Ping Liu Shujian Zheng Xian Wang Jun Ding Yuqi Feng | 2020 | Chinese Chemical Letters2020，31，9： | 3 |
| 6 | Femtosecond laser fabrication of nanograting-based distributed fiber sensors for extreme environmental applications显示文摘The femtosecond laser has emerged as a powerful tool for micro-and nanoscale device fabrication. Through nonlinear ionization processes, nanometer-sized material modifications can be inscribed in transparent materials for device fabrication. This paper describes femtosecond precision inscription of nanograting in silica fiber cores to form both distributed and point fiber sensors for sensing applications in extreme environmental conditions. Through the use of scanning electron microscope imaging and laser processing optimization,high-temperature stable, Type II femtosecond laser modifications were continuously inscribed,point by point, with only an insertion loss at 1 d B m~(-1) or 0.001 d B per point sensor device.High-temperature performance of fiber sensors was tested at 1000℃, which showed a temperature fluctuation of ±5.5℃ over 5 days. The low laser-induced insertion loss in optical fibers enabled the fabrication of a 1.4 m, radiation-resilient distributed fiber sensor. The in-pile testing of the distributed fiber sensor further showed that fiber sensors can execute stable and distributed temperature measurements in extreme radiation environments. Overall, this paper demonstrates that femtosecond-laser-fabricated fiber sensors are suitable measurement devices for applications in extreme environments. | Mohan Wang Kehao Zhao Jingyu Wu Yuqi Li Yang Yang Sheng Huang Jieru Zhao Thomas Tweedle David Carpenter Guiqiu Zheng Qingxu Yu Kevin P Chen | 2021 | International Journal of Extreme Manufacturing2021，3，2： | 1 |
| 7 | Polymermonolith microextraction online coupled to hydrophilicinteraction chromatography/mass spectrometry for a-nalysis ofβ2-agonist in human urine显示文摘 | Zheng Mingming Zhang Manyu Feng Yuqi | 2009 | J Sep Sci2009，32，11： | 1 |
| 8 | Role of local coordination in bimetallic sites for oxygen reduction: A theoretical analysis显示文摘Understanding of the oxygen reduction reaction(ORR)mechanism for single atom catalysts is pivotal for the rational design of non-precious metal cathode materials and the commercialization of fuel cells.Herein,a series of non-precious metal electrocatalysts based on nitrogen-doped bimetallic(Fe and Co)carbide were modeled by density functional theory calculations to predict the corresponding reaction pathways.The study elucidated prior oxygen adsorption on the Fe atom in the dual site and the modifier role of Co atoms to tune the electronic structures of Fe.The reaction activity was highly correlated with the bimetallic center and the coordination environment of the adjacent nitrogen.Interestingly,the preadsorption of*OH resulted in the apparent change of metal atoms'electronic states with the d-band center shifting toward the Fermi level,thereby boosting reaction activity.The result should help promote the fundamental understanding of active sites in ORR catalysts and provide an effective approach to the design of highly efficient ORR catalysts on an atomic scale. | Yuqi Yang Hao Zhang Zhaofeng Liang Yaru Yin Bingbao Mei Fei Song Fanfei Sun Songqi Gu Zheng Jiang Yuen Wu Zhiyuan Zhu | 2020 | Journal of Energy Chemistry2020，29，5： | 1 |
| 9 | Evolution of tumor microenvironment in colorectal liver metastases under treatment stress显示文摘Dear editor,The tumor microenvironment(TME)heavily impacts disease biology and may influence responses to systemic treatments,and thereby,affects patients’prognosis.In our previous study,we found that immune features could predict prognosis and guide the therapy choices for stage I-III colon cancer[1,2].Increasing evidence shows that therapyinduced TME changes can promote tumor progression,metastasis,and the development of resistance[3,4].However,the TME dynamics in colorectal liver metastases(CRLM)under treatment are still incompletely clear. | Na Huang Dongqiang Zeng Xiaoxiang Rong Chunlin Wang Zhenzhen Wu Jian Guo Yuqi Wang Jin Li Jing Li Jiao Wang Siting Zheng Genjie Huang Jianping Bin Yulin Liao Qian Li Xin Yi Wangjun Liao Min Shi | 2022 | Cancer Communications2022，42，5： | 1 |
| 10 | Hybridorganic-inorganic octyl monolithic column for in-tube solid-phase microextraction coupled to capillary high-performance liquid chromatography显示文摘 | Zheng Mingming Lin Bo Feng Yuqi | 2007 | J Chromatogr A2007，34，4： | 1 |
| 11 | Oil recovery from oil sludge through combined ultrasound and thermochemical cleaning treatment 显示文摘 | Jin Yuqi Zheng Xiaoyuan Chu Xiaoliang | 2012 | Ind Eng ChemRes2012，51，27： | 1 |
| 12 | Pyrolysis characteristics of organic components of municipal solid waste at high heating rates 显示文摘 | ZHENG Jiao JIN Yuqi CHI Yong | 2009 | Waste Manage2009，29，3： | 1 |
| 13 | Identification and quantification of benzimidazole metabolites of thiophonate-methyl sprayed on celery cabbage using SiO_2@NiO solid-phase extraction in combination with HPLC-MS/MS显示文摘Thiophonate-methyl(TPM) is one of fungicides and pesticides widely used in agriculture field.However,the residue of its benzimidazole(BZD) metabolites in related agricultural products poses a potential risk to consumers.In this paper,nickel oxide nanoparticle-deposited silica(SiO_2@NiO) composite was used for the selective enrichment and purification of TPM's BZD metabolites in celery cabbage sprayed with TPM.Meanwhile,high-performance liquid chromatography coupled with precursor ion scan-mass spectrometry(HPLC-PIS-MS) and high-resolution MS/MS analysis(HR-MS/MS) was utilized for their qualitative and quantitative analysis.Twenty-one potential TPM's BZD metabolites were found and four of them were identified.One metabolite was discovered for the first time.Besides,a robust and sensitive quantitative method was developed with good linearities(R^2> 0.9972) within a wide range of 10.00-1000 ng/g.The detection limits of three known TPM's metabolites were within the range of 3.20-4.90 ng/g.Relative standard deviations(RSDs) of intra-day and inter-day precisions were less than 18.3%,which showed perfect reproducibility.The method was successfully applied to monitoring TPM's BZD metabolites in celery cabbage sprayed with TPM and the concentration versus time curves of TPM's metabolites in celery cabbage were plotted.This method is expected to be used to monitor BZD residues in various fruits and vegetables. | Qiongwei Yu Shijie Liu Feng Zheng Huaming Xiao Hongyan Guan Yuqi Feng | 2020 | Chinese Chemical Letters2020，31，2： | 1 |
| 14 | Synchronization between embryo development and endometrium is a contributing factor for rescue ICSI outcome显示文摘 | Li Ming Ping Liu Jie Qiao Ying Lian Xiaoying Zheng Xiulian Ren Jin Huang Yuqi Wu | 2012 | Reproductive BioMedicine Online2012，，5： | 1 |
| 15 | Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst显示文摘Constructing heterostructure is an important strategy to design efficient electrocatalysts. The synergetic interaction between dissimilar materials has been considered as the origin of the activity enhancement,however, the interfacial interaction is challenging to probe, thus, the underlying mechanism remains obscure. Here, we reported a heterostructured α-MoC/β-Mo2 C electrocatalyst for hydrogen evolution in alkaline media, which shows a significant electrocatalytic activity improvement as compared to the single component. Based on extensive characterizations including high-resolution transmission electron microscopy and X-ray absorption fine structure(XAFS) spectroscopy, together with density functional theory, we unraveled the synergetic interaction between α-MoC and β-Mo2 C, implying that α-Mo C sites are beneficial for water dissociation and hydrogen prefers to release on β-Mo2 C sites. | Hao Zhang Haiyan Jin Yuqi Yang Fanfei Sun Yang Liu Xianlong Du Shuo Zhang Fei Song Jianqiang Wang Yong Wang Zheng Jiang | 2019 | Journal of Energy Chemistry2019，28，8： | 1 |
| 16 | Genome sequence and evolution of Betula platyphylla显示文摘Betula L.(birch)is a pioneer hardwood tree species with ecological,economic,and evolutionary importance in the Northern Hemisphere.We sequenced the Betula platyphylla genome and assembled the sequences into 14 chromosomes.The Betula genome lacks evidence of recent whole-genome duplication and has the same paleoploidy level as Vitis vinifera and Prunus mume.Phylogenetic analysis of lignin pathway genes coupled with tissue-specific expression patterns provided clues for understanding the formation of higher ratios of syringyl to guaiacyl lignin observed in Betula species.Our transcriptome analysis of leaf tissues under a time-series cold stress experiment revealed the presence of the MEKK1–MKK2–MPK4 cascade and six additional mitogen-activated protein kinases that can be linked to a gene regulatory network involving many transcription factors and cold tolerance genes.Our genomic and transcriptome analyses provide insight into the structures,features,and evolution of the B.platyphylla genome.The chromosome-level genome and gene resources of B.platyphylla obtained in this study will facilitate the identification of important and essential genes governing important traits of trees and genetic improvement of B.platyphylla. | Su Chen Yucheng Wang Lili Yu Tao Zheng Sui Wang Zhen Yue Jing Jiang Sapna Kumari Chunfang Zheng Haibao Tang Jun Li Yuqi Li Jiongjiong Chen Wenbo Zhang Hanhui Kuang Jon SRobertson Patrick XZhao Huiyu Li Shengqiang Shu Yordan SYordanov Haijiao Huang David MGoodstein Ying Gai Qi Qi JiuMeng Min ChunYan Xu SongBo Wang Guan-Zheng Qu Andrew HPaterson David Sankoff Hairong Wei Guifeng Liu Chuanping Yang | 2021 | Horticulture Research2021，8，1： | 1 |
| 17 | Carya cathayensis Leaf Extract Exerts Estrogenic Effects on Hepatic Lipogenesis and Adipocytes Differentiation in Ovariectomized Rats Fed Normal or High-fat Diets显示文摘Background:Our previous in vitro study has shown that total flavonoids from the leaves of Carya cathayensis exert estrogenic activities by promoting the expressions of ER��and ER��.C.cathayensis leaf extract(CCE)was rich in flavonoids.Oral administration of CCE reduced the serum lipids and hepatic lipids,alleviated liver steatosis in ovariectomized rats.Objective:To investigate whether CCE has estrogenic effects on reproductive tissue and influences lipid metabolism in ovariectomized rats,and whether CCE has a direct effect on regulation of lipid synthesis and/or oxidation and adipocyte differentiation of ovariectomized(OVX)rats.Methods:Female Sprague-Dawley rats were ovariectomized and treated with CCE or estradiol in combination with a normal diet(ND),a high-fat diet(HFD)for 8 weeks.Histological analysis of uterus were performed and the lipid metabolism-related enzyme activity were examined.Expression of liver lipogenesis-related genes,adipocyte differentiation-and fat accumulation-related genes and protein were measured.Rusults:Ovariectomy accelerated the uterine atrophy,development of dyslipidemia and hepatic steatosis,which were effectively mitigated by CCE supplementation.CCE significantly elevated ovariectomy-induced reduction in the cross-section area of the uterus and uterine glands.Compared with the OVX group,CCE increased the activities of lipoprtein lipase(LPL)and hepatic lipase(HL),decreased the hepatic mRNA expressions of Fas,Srebf1,Sla2a2,and increased Ppar��expressions at the mRNA levels under both ND and HFD conditions.CCE also decreased the Pck1 and G6pc mRNA expressions under HFD conditions,and show no significant effects on Hmgcr.The expressions of SREBF1,CEBPA and VEGF at the protein level were effectively regulated by CCE supplementation.Conclusion:CCE effectively alleviated ovariectomy-induced dyslipidemia and visceral fat accumulation by mod-ulating hepatic lipogenesis and adipocyte differentiation.Furthermore,CCE exhibited estrogenic activity for the prevention of postmenopausal fatty liver. | Xiwen Jia Simeng Guo Youling Huang Dongheng Zheng Yuqi Ding Xilin Qiao Zhishan Ding Yanfen Huang | 2023 | Clinical Complementary Medicine and Pharmacology2023，3，3： | 0 |
| 18 | High-Frequency 3D Photoacoustic Computed Tomography Using an Optical Microring Resonator显示文摘3D photoacoustic computed tomography(3D-PACT)has made great advances in volumetric imaging of biological tissues,with high spatial-temporal resolutions and large penetration depth.The development of 3D-PACT requires high-performance acoustic sensors with a small size,large detection bandwidth,and high sensitivity.In this work,we present a new high-frequency 3D-PACT system that uses a microring resonator(MRR)as the acoustic sensor.The MRR sensor has a size of 80μm in diameter and was fabricated using the nanoimprint lithography technology.Using the MRR sensor,we have developed a transmission-mode 3D-PACT system that has achieved a detection bandwidth of~23 MHz,an imaging depth of~8 mm,a lateral resolution of 114μm,and an axial resolution of 57μm.We have demonstrated the 3D PACT’s performance on in vitro phantoms,ex vivo mouse brain,and in vivo mouse ear and tadpole.The MRR-based 3D-PACT system can be a promising tool for structural,functional,and molecular imaging of biological tissues at depths. | Qiangzhou Rong Youngseop Lee Yuqi Tang Tri Vu Carlos Taboada Wenhan Zheng Jun Xia David A.Czaplewski Hao F.Zhang Cheng Sun Junjie Yao | 2022 | Biomedical Engineering Frontiers2022，3，1： | 0 |
| 19 | Mapping a stable adult-plant stripe rust resistance QTL on chromosome 6AL in Chinese wheat landrace Yibinzhuermai显示文摘Stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most important diseases threatening the yield and stability of wheat production in China and many other countries.Identification and utilization of new genes for durable stripe rust resistance are important for ongoing control of this disease.The objectives of this study were to identify quantitative trait loci(QTL)associated with adult-plant stripe rust resistance in the Chinese wheat landrace Yibinzhuermai(YBZR)and to provide wheat breeders with new sources of potentially durable resistance.A total of 117 recombinant inbred lines(RILs)(F5:8)derived from a cross between YBZR and highly susceptible cultivar Taichung 29(TC29)were assessed for stripe rust severity in field experiments at Wenjiang in 2016 and 2017 and Chongzhou in 2016,2017,2018,and 2019 in Sichuan following inoculation with a mixture of current Pst races.The RILs were genotyped using the Wheat55K single nucleotide polymorphism(SNP)array.Three QTL were identified on chromosome arms 6AL,5BL and 7DS.QYr.YBZR-6AL and QYr.YBZR-7DS conferred major effects in all field environments,explaining 10.6%to 14.7%and 11.5%to 21.2%of phenotypic variation,respectively.The QTL on 5BL and 7DS likely correspond to previously known QTL,whereas QYr.YBZR-6AL is probably novel.Haplotype analysis revealed that the resistance allele at QYr.YBZR-6AL was present in 2.8%of 324 Chinese wheat landraces.SNP markers closely linked with QYr.YBZR-6AL were converted to kompetitive allele-specific PCR markers and validated in the RIL population and a subset of 92 wheat cultivars.QYr.YBZR-6AL and its markers should be useful in breeding programs to improve the level and durability of stripe rust resistance. | Mei Deng Li Long Yukun Cheng Fangjie Yao Fangnian Guan Yuqi Wang Hao Li Zhien Pu Wei Li Qiantao Jiang Yuming Wei Jian Ma Houyang Kang Pengfei Qi Jirui Wang Youliang Zheng Yunfeng Jiang Guoyue Chen | 2022 | The Crop Journal2022，10，4： | 0 |
| 20 | State fragility and the coronavirus disease 2019(COVID-19)pandemic:an ecologic analysis of data from 146 countries显示文摘Background:Global spread and impact of the coronavirus disease 2019(COVID-19)pandemic are determined to a large extent,by resistance to the pandemic and public response of all countries in the world;while a country's resistance and response are in turn determined by its political and socio economic conditions.To inform future disease prevention and control,we analyzed global data to exam the relationship between state vulnerabilities and COVID-19 incidences and deaths.Methods:Vulnerability was measured using the Fragile States Index(FSI).FSI is created by the Fund for Peace to assess levels of fragility for individual countries.Total FSI score and scores for 12 specific indicators were used as the predictor variables.Outcome variables were national cumulative COVID-19 cases and deaths up to September 16,2020,derived from the World Health Organization.Cumulative incidence rates were computed using 2019 National population derived from the World Bank,and case fatality rates were computed as the ratio of deaths/COVID-19 cases.Countries with incomplete data were excluded,yielding a final sample of 146 countries.Multivariate regression was used to examine the association between the predictor and the outcome measures.Results:There were dramatic cross-country variations in both FSI and COVID-19 epidemiological measurements.FSI total scores were negatively associated with both COVID-19 cumulative incidence rates(β=-0.0135,P<0.001)and case fatality rates(β=-0.0147,P<0.05).Of the 12 FSI indicators,three negatively associated with COVID-19 incidences were E1(Economic Decline and Poverty),E3(Human Flight and Brain Drain),and S2(Refugees and Internally Displaced Persons);two positively associated were P1(State Legitimacy)and X1(External Intervention).With regard to association with case fatality rates,C1(Security Apparatus)was positive,and P3(Human Rights and Rule of Law)and X1 was negative.Conclusion:With FSI measures by the Fund of Peace,overall,more fragile countries are less likely to be affected by the COVID-19 pandemic,and even if affected,death rates were lower.However,poor in state legitimacy and lack of external intervention are risk for COVID-19 infection and lack of security apparatus is risky for COVID-19 death.Implications of the study findings are discussed and additional studies are needed to examine the mechanisms underpinning these relationships. | Yuqi Duan Junxiong Ma Yangmu Huang Xinguang Chen Zhi-Jie Zheng | 2021 | Global Health Journal2021，5，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员