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44篇 您的检索式:作者名="Yuchen ZHU"
    题名 作者 年代 出处 被引量
1Advances on strategies for searching for next generation thermal barrier coating materials显示文摘Thermal barrier coating(TBC) materials play important roles in gas turbine engines to protect the Nibased super-alloys from the high temperature airflow damage. High melting point, ultra-low thermal conductivity, large thermal expansion coefficient, excellent damage tolerance and moderate mechanical properties are the main requirements of promising TBC materials. In order to improve the efficiency of jet and/or gas turbine engines, which is the key of improved thrust-to-weight ratios and the energysaving, significant efforts have been made on searching for enhanced TBC materials. Theoretically, density functional theory has been successfully used in scanning the structure and properties of materials, and at the same time predicting the mechanical and thermal properties of promising TBC materials for high and ultrahigh temperature applications, which are validated by subsequent experiments. Experimentally,doping and/or alloying are also widely applied to further decrease their thermal conductivities. Now, the strategy through combining theoretical calculations and experiments on searching for next generation thermal insulator materials is widely adopted. In this review, the common used techniques and the recent advantages on searching for promising TBC materials in both theory and experiments are summarized.Bin Liu Yuchen Liu Changhua Zhu Huimin Xiang Hongfei Chen Luchao Sun Yanfeng Gao Yanchun Zhou 2019Journal of Materials Science & Technology2019,35,5:24
2CapOX as neoadjuvant chemotherapy for locally advanced operable colon cancer patients: a prospective single-arm phase Ⅱ trial显示文摘Objective: The aim of this prospective, single-arm phase II trial was to confirm the safety and efficacy of neoadjuvant chemotherapy(NAC) using oxaliplatin plus capecitabine(Cap OX) for patients with operable locally advanced colon cancer(CC).Methods: Patients with computed tomography-defined T4 or lymph node-positive CCs were enrolled. After radiological staging, patients were treated with at least 2 cycles of NAC consisting of 130 mg/m2 oxaliplatin on d 1,plus 1,000 mg/m2 capecitabine twice daily for 14 d every 3 weeks, followed by surgery, and then with the rest cycles of adjuvant chemotherapy. Radiological response was evaluated after 2 cycles of NAC. Tumor response, treatment toxicity, and surgical complications were recorded. The pathological response to therapy was evaluated according to the tumor regression grade(TRG) score. The primary endpoint was pathologic tumor response. This trial is registered in Clinical Trials.gov(No: NCT02415829).Results: Forty-seven patients were enrolled in the study. Forty-two patients completed the planned treatments.The total radiological response rate was 68%(32/47), including complete and partial response rates of 2%(1/47)and 66%(31/47), respectively. Stable disease was observed in 32%(15/47) and progressive disease was observed in none. Complete pathologic response, major regression, and at least moderate regression were achieved in 1(2%), 2(4%), and 29(62%) patients, respectively. Four patients developed grade 3 treatment toxicities. One patient with wound infection occurred after operation(1/47, 2%). There was no treatment-related death.Conclusions: Our results suggest that NAC with Cap OX is an effective and safe treatment option for patients with locally advanced CCs.Fangqi Liu Li Yang Yuchen Wu Cong Li Jiang Zhao Adili Keranmu Hongtu Zheng Dan Huang Lei Wang Tong Tong Junyan Xu Ji Zhu Sanjun Cai Ye Xu 2016Chinese Journal of Cancer Research2016,28,6:14
3Global Dynamic Molecular Profiling of Stomatal Lineage Cell Development by Single-Cell RNA Sequencing显示文摘The regulation of stomatal lineage cell development has been extensively investigated.However,a comprehensive characterization of this biological process based on single-cell transcriptome analysis has not yet been reported.In this study,we performed RNA sequencing on 12844 individual cells from the cotyledons of 5-day-old Arabidopsis seedlings.We identified 11 cell clusters corresponding mostly to cells at specific stomatal developmental stages using a series of marker genes.Comparative analysis of genes with the highest variable expression among these cell clusters revealed transcriptional networks that regulate development from meristemoid mother cells to guard mother cells.Examination of the developmental dynamics of marker genes via pseudo-time analysis revealed potential interactions between these genes.Collectively,our study opens the door for understanding how the identified novel marker genes participate in the regulation of stomatal lineage cell development.Zhixin Liu Yaping Zhou Jinggong Guo Jiaoai Li Zixia Tian Zhinan Zhu Jiajing Wang Rui Wu Bo Zhang Yongjian Hu Yijing Sun Yan Shangguan Weiqiang Li Tao Li Yunhe Hu Chenxi Guo Jean-David Rochaix Yuchen Miao Xuwu Sun 2020Molecular Plant2020,13,8:11
4Acupuncture activates signal transduction pathways related to brain-tissue restoration after ischemic injury显示文摘A middle cerebral artery occlusion-model was established in rats using the improved thread embolism method.Rats were treated with acupuncture at either Dazhui(DU14),Renzhong(DU26), Baihui(DU20),or a non-meridian point.Detection with protein-chip technology showed that the level of protein phosphorylation in both groups was upregulated or downregulated depending on the signaling pathway compared with the model group that did not receive acupuncture.Analysis of proteins showing downregulated phosphorylation revealed that five signaling pathways were activated in the acupuncture-treatment group,while only two were activated in the acupuncture-control group.In contrast,analysis of proteins showing upregulated phosphorylation revealed only one pathway was activated in the acupuncture-treatment group,whereas four pathways were activated in the acupuncture-control group.Furthermore,the number of activated proteins in the acupuncture-treatment group was not only higher than the acupuncture-control group,but unlike the acupuncture-control group,the majority of activated proteins were key proteins in the signaling pathways.Our findings indicate that acupuncture at specific points can activate multiple signaling pathways to promote the restoration of brain tissue following ischemic injury,and that this is based on a combination of effects resulting from multiple pathways,targets,and means.Haomei Tian Hong Zhang Junbao Zhu Juan Zhang Hening Cai Yuchen Zhang Chutao Chen 2012Neural Regeneration Research2012,7,24:9
5Direct observation of epitaxial alignment of Au on M0S2 at atomic resolution显示文摘The morphology and structural stability of metal/2D semic on ductor interfaces strongly affect the performa nee of 2D electronic devices and synergistic catalysis. However, the structural evolution at the interfaces has not been well explored particularly at atomic resolution. In this work, we study the structural evoluti on of Au nan oparticles (NPs) on few-layer MoS2 by high resol utio n transmissi on electro n microscopy (HRTEM) an d quan titative high-angle annular dark field seanning TEM. It is found that in the transition of Au from nan oparticles to den drites, a dynamically epitaxial align ment betwee n Au and MoS2 lattices is formed, and Moirc patter ns can be directly observed in HRTEM images due to the mismatch between Au and M0S2 lattices. This epitaxial alignment can occur in ambient conditions, and can also be accelerated by the irradiation of high-energy electron beam. In situ observation clearly reveals the rotation of Au NPs, the atom migration inside Au NPs, and the transfer of Au atoms between neighboring Au NPs, finally leading to the formation of epitaxially aligned Au dendrites on M0S2. The structural evoluti on of metal/2D semico nductor in terfaces at atomic scale can provide valuable information for the design and fabricatio n of the metal/2D semicon ductorn ano-devices with desired physical and chemical performa nces.Yinghui Sun Haofei Zhao Dan Zhou Yuchen Zhu Huanyu Ye Yan Aung Moe 2019Nano Research2019,12,4:4
6Effect of ultraviolet irradiation and chlorination on ampicillin-resistant Escherichia coli and its ampicillin resistance gene显示文摘抗菌素抵抗是可以经由饮料传播并且回收了水的严重公共健康风险。有效消毒为抗菌素抵抗基因的抗菌素抵抗的细菌和混乱的 inactivation 是重要的。氨比西林是广泛地规定的抗菌素,但是它的有效性被抵抗逐渐地破坏。在这研究,为 Escherichia coli 在氨比西林抵抗变化(E。coli ) CGMCC 1.1595 在暴露以后被分析到不同剂量紫外(紫外) 或氯,和损坏由编码氨比西林抵抗基因 bla TEM-1 被估计。我们在 ampicillinresistant E 报导了更大的稳定性。在紫外照耀或氯化以后的 coli CGMCC 1.1595 什么时候与为另外的 E 的以前出版的数据相比。coli 紧张。紫外照耀和氯化在氨比西林抵抗的 E 的死亡频率分布导致了移动。coli 当随后暴露了到氨比西林时。氨比西林 hemiinhibitory 集中(没有消毒的 IC 50) 是 3800 mg ?Yuchen PANG Jingjing HUANG Jinying XI Hongying HU Yun ZHU 2016Frontiers of Environmental Science & Engineering2016,10,3:3
7A male-ABCD algorithm for hepatocellular carcinoma risk prediction in HBs Ag carriers显示文摘Objective: Hepatocellular carcinoma(HCC) development among hepatitis B surface antigen(HBs Ag) carriers shows gender disparity, influenced by underlying liver diseases that display variations in laboratory tests. We aimed to construct a risk-stratified HCC prediction model for HBs Ag-positive male adults.Methods: HBs Ag-positive males of 35-69 years old(N=6,153) were included from a multi-center populationbased liver cancer screening study. Randomly, three centers were set as training, the other three centers as validation. Within 2 years since initiation, we administrated at least two rounds of HCC screening using Bultrasonography and α-fetoprotein(AFP). We used logistic regression models to determine potential risk factors,built and examined the operating characteristics of a point-based algorithm for HCC risk prediction.Results: With 2 years of follow-up, 302 HCC cases were diagnosed. A male-ABCD algorithm was constructed including participant's age, blood levels of GGT(γ-glutamyl-transpeptidase), counts of platelets, white cells,concentration of DCP(des-γ-carboxy-prothrombin) and AFP, with scores ranging from 0 to 18.3. The area under receiver operating characteristic was 0.91(0.90-0.93), larger than existing models. At 1.5 points of risk score,26.10% of the participants in training cohort and 14.94% in validation cohort were recognized at low risk, with sensitivity of identifying HCC remained 100%. At 2.5 points, 46.51% of the participants in training cohort and 33.68% in validation cohort were recognized at low risk with 99.06% and 97.78% of sensitivity, respectively. At 4.5 points, only 20.86% of participants in training cohort and 23.73% in validation cohort were recognized at high risk,with positive prediction value of 22.85% and 12.35%, respectively.Conclusions: Male-ABCD algorithm identified individual's risk for HCC occurrence within short term for their HCC precision surveillance.Yuting Wang Minjie Wang He Li Kun Chen Hongmei Zeng Xinyu Bi Zheng Zhu Yuchen Jiao Yong Wang Jian Zhu Hui Zhao Xiang Liu Chunyun Dai Chunsun Fan Can Zhao Deyin Guo Hong Zhao Jianguo Zhou Dongmei Wang Zhiyuan Wu Xinming Zhao Wei Cui Xuehong Zhang Jianqiang Cai Wanqing Chen Chunfeng Qu 2021Chinese Journal of Cancer Research2021,33,3:3
8Review of flash sintering with strong electric field显示文摘Flash sintering is a novel field‐assisted sintering technology for ceramics that allows a dramatic reduction in processing time and temperature.Since 2010,when flash sintering was first reported,it has been a focus of research interest in the field of materials science.Recent study results have confirmed that the sintering temperature decreases with the strength of the applied electric field;for some ceramics,the sintering temperature can be lowered even to room temperature.This represents an innovative breakthrough for ceramic sintering at ultra‐low temperatures.However,once the electric field strength in flash sintering is increased,new questions and challenges arise,such as whether or not partial discharge occurs in the green body if under electro‐thermal coupling stress,how to quantitatively analyse the impact of discharge on sintering,and,moreover,whether the sintering mechanism under a strong electric field is consistent with that under a weak electric field.These research questions require knowledge of partial discharge detection,dielectric theory,and other topics that are beyond the scope of materials science.To address this need,this review summarises the work carried out in flash sintering with a strong electric field from the perspective of high voltage and insulation technology.First,the flash sintering process and mechanism are briefly introduced.Then,the published literature on flash sintering with a strong electric field for various ceramic materials is summarised in depth.In addition,experimental phenomena that are observed in flash sintering with a strong electric field,such as flash and blackening,are discussed.Finally,some suggestions for future work are presented.It is anticipated that the knowledge gap between different areas of study can be filled by this review.Hongyang Zhou Xiang Li Yuchen Zhu Jieming Liu Angxuan Wu Guoming Ma Xilin Wang Zhidong Jia Liming Wang 2022High Voltage2022,7,1:2
9Down-regulation of TIPE2 mRNA expression in peripheral blood mononuclear cells from patients with systemic lupus erythematosus显示文摘Di Li Lijun Song Yuchen Fan Xia Li Yingjie Li Jie Chen Faliang Zhu Chun Guo Yongyu Shi Lining Zhang 2009Clinical Immunology2009,,:1
10A CRISPR knockout negative screen reveals synergy between CDKs inhibitor and metformin in the treatment of human cancer in vitro and in vivo显示文摘Laboratory research and pharmacoepidemiology provide support for metformin as a potential antitumor agent.However,the lack of a clear understanding of the indications of metformin limits its efficacy.Here,we performed a genome-wide CRISPR knockout negative screen to identify potential targets that might synergize with metformin.Next-generation sequencing of pooled genomic DNAs isolated from surviving cells after 18 days of metformin treatment(T18)compared to those of the untreated cells at day 0(T0)yielded candidate genes.Knockdown of a group of cyclin-dependent kinases(CDKs),including CDK1,CDK4,and CDK6,confirmed the results of the screen.Combination treatment of the CDKs inhibitor abemaciclib with metformin profoundly inhibited tumor viability in vitro and in vivo.Although cell cycle parameters were not further altered under the combination treatment,investigation of the metabolome revealed significant changes in cell metabolism,especially with regard to fatty acid oxidation,the tricarboxylic acid cycle and aspartate metabolism.Such changes appeared to be mediated through inhibition of the mTOR pathway.Collectively,our study suggests that the combination of CDKs inhibitor with metformin could be recognized as a potential therapy in future clinical applications.Yarui Ma Qing Zhu Junbo Liang Yifei Li Mo Li Ying Zhang Xiaobing Wang Yixin Zeng Yuchen Jiao 2020Signal Transduction and Targeted Therapy2020,5,1:1
11AHR mediates the aflatoxin B1 toxicity associated with hepatocellular carcinoma显示文摘Aflatoxin exposure is a crucial factor in promoting the development of primary hepatocellular carcinoma(HCC)in individuals infected with the hepatitis virus.However,the molecular pathways leading to its bioactivation and subsequent toxicity in hepatocytes have not been well-defined.Here,we carried out a genome-wide CRISPR-Cas9 genetic screen to identify aflatoxin B1(AFB1)targets.Among the most significant hits was the aryl hydrocarbon receptor(AHR),a ligand-binding transcription factor regulating cell metabolism,differentiation,and immunity.Qing Zhu Yarui Ma Junbo Liang Zhewen Wei Mo Li Ying Zhang Mei Liu Huan He Chunfeng Qu Jianqiang Cai Xiaobing Wang Yixin Zeng Yuchen Jiao 2021Signal Transduction and Targeted Therapy2021,6,9:1
12Research on the Voltage Supporting Capability of Multi-VSC-HVDC Subsystems Operation Strategy to Receiving-end LCC-HVDC Network in Weak AC Grid显示文摘For the hybrid multi-infeed HVDC system in which the receiving-end grid is a strong AC grid including LCC-HVDC subsystems and multiple VSC-HVDC subsystems,it has higher voltage support capability.However,for weak AC grid,the voltage support capability of the multi-VSC-HVDC subsystems to the LCC-HVDC subsystem(voltage support capability-mVSCs-LCC)can resist the risk of commutation failure.Based on this consideration,this paper proposes an evaluation index called Dynamic Voltage Support Strength Factor(DVSF)for the hybrid multi-infeed system,and uses this index to qualitatively judge the voltage support capability-mVSCs-LCC in weak AC grid.In addition,the proposed evaluation index can also indirectly judge the ability of the LCC-HVDC subsystem to suppress commutation failure.Firstly,the mathematical model of the power flow of the LCC and VSC networks in the steady-state is analyzed,and the concept of DVSF applied to hybrid multi-infeed system is proposed.Furthermore,the DVSF index is also used to qualitatively judge the voltage support capability-mVSCs-LCC.Secondly,the influence of multiple VSC-HVDC subsystems with different operation strategies on the DVSF is analyzed with reference to the concept of DVSF.Finally,the indicators proposed in this paper are compared with other evaluation indicators through MATLAB simulation software to verify its effectiveness.More importantly,the effects of multi-VSC-HVDC subsystems using different coordinated control strategies on the voltage support capability of the receiving-end LCC-HVDC subsystem are also verified.Tao Li Yongli Li Yuchen Zhu 2023CES Transactions on Electrical Machines and Systems2023,7,1:1
13Experience Replay for Least-Squares Policy Iteration显示文摘Policy iteration,which evaluates and improves the control policy iteratively,is a reinforcement learning method.Policy evaluation with the least-squares method can draw more useful information from the empirical data and therefore improve the data validity.However,most existing online least-squares policy iteration methods only use each sample just once,resulting in the low utilization rate.With the goal of improving the utilization efficiency,we propose an experience replay for least-squares policy iteration(ERLSPI)and prove its convergence.ERLSPI method combines online least-squares policy iteration method with experience replay,stores the samples which are generated online,and reuses these samples with least-squares method to update the control policy.We apply the ERLSPI method for the inverted pendulum system,a typical benchmark testing.The experimental results show that the method can effectively take advantage of the previous experience and knowledge,improve the empirical utilization efficiency,and accelerate the convergence speed.Quan Liu Xin Zhou Fei Zhu Qiming Fu Yuchen Fu 2014IEEE/CAA Journal of Automatica Sinica2014,1,3:1
14Preparation of magnetic porous carbon from waste hydrochar by simultaneous activation and magnetization for tetracycline removal显示文摘Xiangdong Zhu Yuchen Liu Feng Qian Chao Zhou Shicheng Zhang Jianmin Chen 2013Bioresource Technology2013,,:1
15Cancer-associated histone mutation H2BG53D disrupts DNA–histone octamer interaction and promotes oncogenic phenotypes显示文摘Dear Editor,Recent studies from us and others have deciphered the clinical relevance of a variety of oncohistones1 in different diseases.The H3K27M and H3K36M mutant histones exert dominant-negative effects on methylation levels of histone H3K27 and H3K36 on wildtype histone protein in pediatric brain cancers2–4 and chondroblastoma,5,6 respectively.In contrast to H3K27M and H3K36M that act in trans to cause global reduction of methylation at the respective residues,the H3G34 mutations,including H3G34V/R and H3G34W/L found in pediatric high-grade glioma and giant cell tumor of the bone,affect the H3K36 methylation in cis and alter the H3K36 methylation on the nucleosome containing the H3G34 mutation(s).Yi Ching Esther Wan Tsz Chui Sophia Leung Dongbo Ding Xulun Sun Jiaxian Liu Lina Zhu Tze Zhen Evangeline Kang Du Yang Yuchen Zhang Jitian Zhang Chengmin Qian Michael Shing Yan Huen Qing Li Maggie Zi Ying Chow Zongli Zheng Junhong Han Ajay Goel Xin Wang Toyotaka Ishibashi Kui Ming Chan 2020Signal Transduction and Targeted Therapy2020,5,1:1
16Microstructures and soft magnetic properties of Fe_(73.5)Cu_(1)Nb_(3-x)Si_(13.5)B_(9)Yx(x=0-1.5)alloys显示文摘Based on composition of Finemet alloy,structures and soft magnetic properties of Fe_(73.5)Cu_(1)Nb_(3-x)Si_(13.5)B_(9)Yx(x=0,0.5,1.0,1.5)alloys formed by replacing Nb(niobium)by Y(yttrium)were studied in this paper.The research results show that when x=0 or 0.5,rapidly solidified as-cast alloy is Fe amorphous single-phase structure,and Y atoms are dispersed in matrix;when x=1.0 or 1.5,crystalline phase precipitates.Fe_(73.5)Cu_(1)Nb_(3-x)Si_(13.5)B_(9)Yx(x=0,0.5,1.0,1.5)alloys begin to precipitateα-Fe(Si)solid solution phase after crystallization annealing above 480℃,when x=0.5,grain size is 12.6 nm,which shows that Y can replace Nb in small amount and refine grain size.Fe_(73.5)Cu_(1)Nb_(2.5)Si_(13.5)B_(9)Y_(0.5)alloy has excellent soft magnetic properties:μm value is 813.1×10^(3),which is 36%higher than that of Finemet alloy;μi value is 154.6×10^(3),close to that of Finemet alloy,and BS and Hc values are 1.24 T and 0.56 A/m,respectively,better than those of Finemet alloy.In addition,Fe_(73.5)Cu_(1)Nb_(2.5)Si_(13.5)B_(9)Y_(0.5)alloy has excellent soft magnetic properties at high temperature,μe value only reduces by 8.8%at 1 kHz with ambient temperature increased from 30 to150℃,andμe value is 128.02×10^(3)in 150℃,which is 15.74%higher than that of Finemet alloy.Yuchen Mao Zhenghou Zhu Hui Zhao 2021Journal of Rare Earths2021,39,11:1
17Advanced glycation end products increase carbohydrate responsive element binding protein expression and promote cancer cell proliferation显示文摘Hanbei Chen Lifang Wu Yakui Li Jian Meng Ning Lin Dianqiang Yang Yemin Zhu Xiaoyong Li Minle Li Ye Xu Yuchen Wu Xuemei Tong Qing Su 20142014 (1-2)2014,,1:1
18Lead citrate precursor route to synthesize nanostructural lead oxide from spent lead acid battery paste 显示文摘Li Lei Hua Yuchen Zhu Xinfeng 2013Materials Research Bulletin2013,48,4:1
19Upregulation of B7-H1 expression is associated with macrophage infiltration in hepatocellular carcinomas显示文摘Jie Chen Guosheng Li Hong Meng Yuchen Fan Yonghong Song Shurong Wang Faliang Zhu Chun Guo Lining Zhang Yongyu Shi 2012Cancer Immunology, Immunotherapy2012,,1:1
20Macrophage membrane-biomimetic adhesive polycaprolactone nanocamptothecin for improving cancer-targeting efficiency and impairing metastasis显示文摘The recent remarkable success and safety of mRNA lipid nanoparticle technology for producing severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)vaccines has stimulated intensive efforts to expand nanoparticle strategies to treat various diseases.Numerous synthetic nanoparticles have been developed for pharmaceutical delivery and cancer treatment.However,only a limited number of nanotherapies have enter clinical trials or are clinically approved.Systemically administered nanotherapies are likely to be sequestered by host mononuclear phagocyte system(MPS),resulting in suboptimal pharmacokinetics and insufficient drug concentrations in tumors.Bioinspired drug-delivery formulations have emerged as an alternative approach to evade the MPS and show potential to improve drug therapeutic efficacy.Here we developed a biodegradable polymer-conjugated camptothecin prodrug encapsulated in the plasma membrane of lipopolysaccharide-stimulated macrophages.Polymer conjugation revived the parent camptothecin agent(e.g.,7-ethyl-10-hydroxy-camptothecin),enabling lipid nanoparticle encapsulation.Furthermore,macrophage membrane cloaking transformed the nonadhesive lipid nanoparticles into bioadhesive nanocamptothecin,increasing the cellular uptake and tumor-tropic effects of this biomimetic therapy.When tested in a preclinical murine model of breast cancer,macrophage-camouflaged nanocamptothecin exhibited a higher level of tumor accumulation than uncoated nanoparticles.Furthermore,intravenous administration of the therapy effectively suppressed tumor growth and the metastatic burden without causing systematic toxicity.Our study describes a combinatorial strategy that uses polymeric prodrug design and cell membrane cloaking to achieve therapeutics with high efficacy and low toxicity.This approach might also be generally applicable to formulate other therapeutic candidates that are not compatible or miscible with biomimetic delivery carriers.Kangkang Ying Yifeng Zhu Jianqin Wan Chenyue Zhan Yuchen Wang Binbin Xie Peirong Xu Hongming Pan Hangxiang Wang 2023Bioactive Materials2023,,2:1
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