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| 1 | Selective laser melting of bulk immiscible alloy with enhanced strength:Heterogeneous microstructure and deformation mechanisms显示文摘To overcome the dimension limits of immiscible alloys produced by traditional techniques and enhance their mechanical properties,bulk Cu-Fe-based immiscible alloy with abundant nanotwins and stacking faults was successfully produced by selective laser melting(SLM).The SLM-produced bulk immiscible alloy displays a heterogeneous microstructure characterized by micro-scaledγ-Fe particles dispersed in fineε-Cu matrix with a high fraction(~92%)of high-angle grain boundaries.Interestingly,abundant nanotwins and stacking faults are generated in the interior of nano-scaledγ-Fe particles embedded withinε-Cu matrix.The heterogeneous interface of soft domains(ε-Cu)and hard domains(γ-Fe)not only induces the geometrically necessary dislocations(GNDs)but also affects the dislocation propagation during plastic deformation.Therefore,the bimodal heterogeneous interface,and the resistance of nanotwins and stacking faults to the propagation of partial dislocation make the bulk immiscible alloy exhibit an enhanced strength of~590 MPa and a good ductility of~8.9%. | Shengfeng Zhou Min Xie Changyi Wu Yanliang Yi Dongchu Chen Lai-Chang Zhang | 2022 | Journal of Materials Science & Technology2022，，9： | 3 |
| 2 | Effects of nano-pore system characteristics on CH4 adsorption capacity in anthracite显示文摘This study aims to determine the effects of nanoscale pores system characteristics on CH4 adsorption capacity in anthracite.A total of 24 coal samples from the southern Sichuan Basin,China,were examined systemically using coal maceral analysis,vitrinite reflectance tests, proximate analysis,ultimate analysis,low-temperature N2 adsorption-desorption experiments,nuclear magnetic resonance (NMR)analysis,and CH4 isotherm adsorption experiments.Results show that nano-pores are divided into four types on the basis of pore size ranges:super micropores (<4 nm),micropores (4-10 nm),mesopores (10-100 nm),and macropores (>100 nm).Super micropores,micropores,and mesopores make up the bulk of coal porosity,providing extremely large adsorption space with large intemal surface area.This leads us to the conclusion that the threshold of pore diameter between adsorption pores and seepage pores is 100 nm.The 'ink bottle'pores have the largest CH4 adsorption capacity, followed by semi-opened pores,whereas opened pores have the smallest CH4 adsorption capacity which indicates that anthracite pores with more irregular shapes possess higher CH4 adsorption capacity.CH4 adsorption capacity increased with the increase in NMR porosity and the bound water saturation.Moreover,CH4 adsorption capacity is positively correlated with NMR permeability when NMR permeability is less than 8 ×10^-3 md.By contrast,the two factors are negatively correlated when NMR permeability is greater than 8 × 10^-3 md. | Chang'an SHAN Tingshan ZHANG Xing LIANG Dongchu SHU Zhao ZHANG Xiangfeng WEI Kun ZHANG Xuliang FENG Haihua ZHU Shengtao WANG Yue CHEN | 2019 | Frontiers of Earth Science2019，13，1： | 2 |
| 3 | Facile Li-Al layered double hydroxide films on Al alloy for enhanced hydrophobicity, anti-biofouling and anti-corrosion performance显示文摘In this work,lithium(Li)-aluminum(Al)layered double hydroxide(LDH)films modified by 4-amino-2-((hydrazine methylene)amino)-4-oxobutanoic acid(denoted as AOA acid)and/or 1H,1H,2H,2H-perfluorooctyltriethoxysilane were prepared on 6N01 Al alloy by a facile,in-situ growth method with enhanced hydrophobicity,anti-biofouling and anti-corrosion performance.The preparation is low energy consumptive and environment friendly,relying on self-assembly at ambient temperature.The structure,molecular weight and functional groups of the synthesized AOA acid were characterized by NMR spectrometer,ESI-MS spectrometer and Fourier transform infrared(FT-IR)spectroscopy.And the compositions,structure and morphology of the films were characterized by Fourier transform infrared(FT-IR)spectroscopy,glancing-angle X-ray diffraction(GA-XRD),X-ray photoelectron spectroscopy(XPS),field emission scanning electron microscopy(FE-SEM)and energy-dispersive x-ray spectrum(EDS).Water contact angle measurements(CA)and atomic force microscopy(AFM)characterization show that the films possess a micro/nanostructure with an improved hydrophobicity.Immersion test,neutral salt tests(NSS)and electrochemical impedance spectroscopy(EIS)conducted in 3.5 wt.%NaCl solutions demonstrate the improved corrosion resistance of the films over bare Al alloy.Meanwhile,the films also possess an excellent anti-bacterial property toEscherichia coli,Bacillus subtilis and sulfate-reducing bacteria. | Ji Li Tianci Yuan Chengliang Zhou Bo Chen Yi Shuai Dawang Wu Dongchu Chen Xiaohu Luo Y.Frank Cheng Yali Liu | 2021 | Journal of Materials Science & Technology2021，，20： | 2 |
| 4 | Preparation of cerium oxide based environment-friendly chemical conversion coating on magnesium alloy with additives显示文摘 | Chen Dongchu Wu Jianfeng Liang Yiqing | 2011 | Trans Nonferrous Metals Soc China2011，21，8： | 1 |
| 5 | 自体CIK细胞联合XELOX化疗治疗晚期结直肠癌的随机对照研究(英文)显示文摘Objective: To evaluate the efficacy of autologous cytokine-induced killer(CIK) cells transfusion combined with chemotherapy in patients suffered from advanced colorectal cancer. Methods: Sixty untreated patients with advanced colorectal cancer were randomly divided into two groups. The 30 patients in the control group received chemotherapy with the regimen of xeloda plus oxiplatin(XELOX). The 30 patients in the trial group were treated with chemotherapy(XELOX) in combination with autologous CIK cell transfusion. T-lymphocyte subgroups were separated and measured by flow cytometry quality of life(QOL) was determined by EORTC QLQ-C30. The short-term curative effect was evaluated via imaging examinations. The patients' median progression free survival time was estimated by Kaplan-Meier. Results: The T-lymphocyte immune activity was improved in patients received autologous CIK cell transfusion than those treated with chemotherapy alone.The subgroup of CD3+CD56+T lymphocyte was significantly increased(4.28 ± 0.45 vs 10.14 ± 1.02, P = 0.01). Short-term efficacy evaluation revealed that there was no significant difference in terms of objective response rate(ORR) between the two groups, but the disease control rate(DCR) was markedly increased(86.7% vs 56.7%, P = 0.020) in the group treated by chemotherapy plus CIK cells compared to the group treated with chemotherapy alone. The progression free survival time was 8.64 months( 95% CI 6.25-9.75 months) in control group and 10.15 months( 95% CI 7.48-12.52 months) in trial group.Compared to patients in control group, the patients in trial group had significantly longer progression-free survival(P = 0.046).The QOL assessment suggested the QOL in trial group was obviously improved than that in the control group. Compared with the control group, patients treated with autologous CIK cell transfusion scored more in the area of physical function and general health status, while the symptomatic scores in terms of pain, fatigue, nausea and vomiting and diarrhea were significantly reduced. Conclusion: Autologous CIK cell transfusion combined with chemotherapy can effectively enhance the immune activity of T-lymphocytes, prevent disease progression and improve the progression-free survival and QOL in patients with advanced colorectal cancer. | Cheng Du Zhaozhe Liu Zhenyu Ding Fang Guo Dongchu Ma Xiaodong Xie | 2013 | The Chinese-German Journal of Clinical Oncology2013，12，10： | 1 |
| 6 | Thrombopoietin induced proliferation and differentiation of fetal liver CD34^+ cells with phenotype change from hemopoiesis to neurogenesis显示文摘BACKGROUND: Previous studies have reported a neurotrophin-like motif in the N-terminal receptor binding region of the thrombopoietin (TPO) molecule, and have described localization of TPO and TPO receptor in the brain. Therefore, it is believed that TPO may be involved in regulation of neurogenesis. OBJECTIVE: To validate the effect of TPO on trans-differentiation, or differentiation from hematopoietic stem cells (HSCs) to neural stem cells (NSCs). DESIGN, TIME AND SETTING: Comparative studies were performed from March 2004 to April 2007 at the Department of Experimental Medicine, Northern Hospital, and the Department of Immunology, Fourth Military Medical University of Chinese PLA. MATERIALS: Human fetal liver (FL) was obtained from fetuses after water-balloon abortion. Gestational age ranged from 16 to 20 weeks. The study was approved by the Institutional Review Board and Ethics Committee of the Northern Hospital. TPO was kindly provided by Genentech Inc (USA). Iscove's Modified Dulbecco's Medium (IMDM) and neurobasalTM medium were purchased from Invitrogen (USA). MACS CD34 multisort kit was purchased from Miltenyi Biotec (Germany). METHODS: CD34+ cells were isolated from human FL mononuclear cells using MACS CD34 multisort kit and cultured at 1 × 105/mL in IMDM, containing TPO for 60 days with weekly changes of half of the medium. After culturing for 30 and 60 days, the TPO-induced cells were resuspended in neurobasalTM medium containing 10% fetal brain extracts and plated in an 8-well BIOCOAT poly-D-Lysine Culture Slide and cul- tured for another 7 days. MAIN OUTCOME MEASURES: Cell number, viability, phenotype and expression of hemopoiesis-related and neurogenesis-related proteins were examined by trypan blue exclusion with hemocytometer, immunoblot, immunocytochemistry and flow cytometry. RESULTS: After 60 days of induction with TPO, the cell number increased by 4.6-fold compared to the ini- tial culture. Although the proportion of the cells expressing the hemopoietic stem cell associated antigen (CD34) decreased steadily, both proportions of the cultured FL-derived CD34+ cells expressing CD41a and CD61 remained unchanged, which still accounted for 10%. Noticeably, the proportions of the cells express- ing nestin and epidermal growth factor receptor increased significantly (both > 50%), whereas the expression of more mature neural or glial proteins [microtubule-associated protein-2 (MAP2), glial fibrillary acidic pro- tein (GFAP), oligodendrocyte marker O4 (O4)] markers on the cultured fetal liver derived-CD34+ cells were at lower levels. After another 7 days incubation in neurobasal? medium, these TPO-induced cells formed neurospheres, which were labeled with nestin, and differentiated into cells with morphological characteristics of neurons, astrocytes and oligodendrocytes, which were labeled with MAP-2, GFAP, and O4, respectively. CONCLUSION: TPO can induce FL-derived HSCs to differentiate or trans-differentiate into NSCs and its progenitors. | Ning Ma Dongchu Ma Yi Tao Yinghui Sun Di Lin Huiying Yu Jinlong Jian Wei Jia Boquan Jin | 2008 | Neural Regeneration Research2008，3，4： | 1 |
| 7 | Polyolefi n-Coated Urea Decreases Ammonia Volatilization in a Double Rice System of Southern China显示文摘 | Xu Minggang Li Dongchu Li Jumei Qin Daozhu Hosen Yasukazu Shen Huaping Cong Rihuan He Xinhua | 2013 | Agronomy Journal2013，，1： | 1 |
| 8 | Ultralow-temperature assisted synthesis of single platinum atoms anchored on carbon nanotubes for efficiently electrocatalytic acidic hydrogen evolution显示文摘Although platinum(Pt) is highly active for hydrogen evolution reaction(HER)[1], it is crucial to explore the effective approach for minimizing the Pt loading amount in the practical application. Herein, one ultralow-temperature solution reduction approach is developed to anchor atomically dispersed Pt atoms on carbon nanotubes(Pt-CNTs), which decelerates the diffusion rate of Pt Cl2-6 ion reached onto the carbon nanotubes and lowers the free energy of Pt atoms in the solution to reduce the probability of the Pt aggregation. The obtained Pt-CNTs exhibits a low overpotential of 41 mV@10 mA cm^(-2) for HER in acidic media. The calculation results revealed that the improvement of the electrocatalytic activity is contributed by the interaction between CNTs and Pt atoms, which descreases the the Pt d band cneter referred to the Fermi level and lowers the Gibbs free energy of H*adsorption. This work may provide one easy and convenient strategy for the large-scale use of Pt catalysts in practical applications. | Wenwu Zhong Wenguang Tu Zongpeng Wang Zhiping Lin Aijiao Xu Xiufang Ye Dongchu Chen Beibei Xiao | 2020 | Journal of Energy Chemistry2020，29，12： | 1 |
| 9 | Measurement and correlation of liquid-liquid equilibria of methylcyclohexane +toluene + N-formylorpholine at (293,303,313 and 323) K显示文摘 | Chen Dongchu Ye Hongqi Wu Hao | | 0，，04： | 1 |
| 10 | Study of the Float Glass Melting Process: Combining Fluid Dynamics Simulation and Glass Homogeneity Inspection 显示文摘 | Feng Zhijun Li Dongchu Qin Guoqiang | 2008 | J Am Ceram Soc2008，91，10： | 1 |
| 11 | Bayesian analysis for the Lomax model using noninformative priors显示文摘The Lomax distribution is an important member in the distribution family.In this paper,we systematically develop an objective Bayesian analysis of data from a Lomax distribution.Noninformative priors,including probability matching priors,the maximal data information(MDI)prior,Jeffreys prior and reference priors,are derived.The propriety of the posterior under each prior is subsequently validated.It is revealed that the MDI prior and one of the reference priors yield improper posteriors,and the other reference prior is a second-order probability matching prior.A simulation study is conducted to assess the frequentist performance of the proposed Bayesian approach.Finally,this approach along with the bootstrap method is applied to a real data set. | Daojiang He Dongchu Sun Qing Zhu | 2023 | Statistical Theory and Related Fields2023，7，1： | 1 |
| 12 | Intrinsic Bayesian estimation of vector autoregression impulse responses 显示文摘 | Ni Shawn Sun Dongchu Sun Xiaoqian | 2007 | Journal of Business & Economic Statistics2007，25，2： | 1 |
| 13 | Effect of dendritic cell/cytokine-induced killer cell immunobiological cancer therapy combined with adjuvant chemotherapy in patients with triple-negative breast cancer显示文摘Objective The aim of the present study was to investigate the effect of dendritic cell(DC)/cytokine-induced killer cell(CIK) immunobiological cancer therapy in patients with triple-negative breast cancer(TNBC) who underwent adjuvant chemotherapy. Methods From January 2010 to October 2013, 120 patients with postoperative TNBC were recruited and included in the study. Patients were enrolled in one of two groups according to whether they accepted DC/CIK immunobiological cancer therapy during adjuvant chemotherapy; the patients in the DC/CIK group underwent adjuvant chemotherapy combined with DC/CIK immunobiological cancer therapy, and the control group underwent adjuvant chemotherapy alone. When six cycles of adjuvant chemotherapy and six cycles of DC/CIK immunobiological cancer therapy had been completed, differences between the two groups with regard to quality of life(Qo L), immunological indicators(CD3, CD4, CD8, and NK cell levels), disease-free survival(DFS), and side effects of chemotherapy and DC/CIK treatment were evaluated.Results In the DC/CIK group, the proportion of NK cells and CD3+ and CD4+ T-cell subgroups significantly increased, and the proportion of CD8+ cells decreased when they were compared before and after DC/CIK therapy(P < 0.05). However, there were no significant changes in the control group. By the final follow-up, DFS of the treatment group and the control group was 38.4 and 34.2 months, respectively. The Qo L improved in the patients treated with chemotherapy plus DC/CIK therapy compared with the patients treated with chemotherapy alone, and the difference between groups was significant(P < 0.05). The side effects of two groups were tolerable and not significantly different between the two groups.Conclusion The DC/CIK treatment had potential benefits for patients with TNBC compared with the control group, and was not associated with any obvious side effects. Therefore, DC/CIK therapy is a safe and effective method for the treatment of TNBC. | Ranran Zhang Wanqing Xie Tao Han Yongye Liu Zhaozhe Liu Fang Guo Yaling Han Zhenyu Ding Yinghui Sun Dongchu Ma Xiaodong Xie | 2015 | The Chinese-German Journal of Clinical Oncology2015，14，1： | 1 |
| 14 | Bayesian stochastic search for VARmodelrestrictions 显示文摘 | Edward George Dongchu Su~ Shawn Ni | 2008 | JournalofEconometrics2008，，1： | 1 |
| 15 | Nucleation and growth of L1_(2)-Al_(3)RE particles in aluminum alloys:A first-principles study显示文摘The internal mechanisms of nucleation and growth of L1_(2)-AI_(3)RE(RE=Sc,Y,La-Lu) second phases in Al alloys were investigated by combining first-principles calculations with quasi-harmonic approximation(QHA).The calculated results show that the diffusion rate D_s and chemical potential AG_V increase with the increase of temperature.With the increase of atomic number,the D_s and the strain energy ΔE_(CS)increase firstly from Sc to La,and then decreases,while the calculated interface energy γ_(α/β) and ΔG_V show opposite tendency.Based on above calculated results,the critical nucleation radius R*and coarsening rate K_(LSW) are obtained from the classical nucleation theory(CNT) and LSW model of the Ostwald ripening of particles,respectively.With the increase of atomic number,the R*increases firstly,and then decreases for all planes at finite temperatures.Whereas the K_(LSW) shows opposite variation to the R^(*).From this point of view,it is reasonably speculated that Y and later RE elements can replace the expensive Sc for heat-resistance Al alloys.The solubility c_(∞) of particles is usually very small at low temperature,and there is obvious solubility only when the temperature reaches 600 K.The surface energies E_(sur) of AI_(3)RE compounds and Al solid solution are respectively larger and smaller than that of pure Al,respectively,except for the surface(001) and(110) of Al_(3)La.For all planes,with the increase of atomic number of RE,E_(sur) decreases firstly from Sc to La,and then increases linearly to Lu.These results are helpful for designing high performance heat-resistance Al alloys. | Touwen Fan Zixiong Ruan Feng Zhong Chaoyang Xie Xiaofeng Li Dongchu Chen Pingying Tang Yuanzhi Wu | 2023 | Journal of Rare Earths2023，41，7： | 0 |
| 16 | A class of admissible estimators of multiple regression coefficient with an unknown variance显示文摘Suppose that we observe y|θ,τ∼N_(p)(Xθ,τ^(−1)I_(p)),where θ is an unknown vector with unknown precisionτ.Estimating the regression coefficient θ with known τ has been well studied.However,statistical properties such as admissibility in estimating θ with unknownτare not well studied.Han[(2009).Topics in shrinkage estimation and in causal inference(PhD thesis).Warton School,University of Pennsylvania]appears to be the first to consider the problem,developing sufficient conditions for the admissibility of estimating means of multivariate normal distributions with unknown variance.We generalise the sufficient conditions for admissibility and apply these results to the normal linear regression model.2-level and 3-level hierarchical models with unknown precisionτare investigated when a standard class of hierarchical priors leads to admissible estimators of θ under the normalised squared error loss.One reason to consider this problem is the importance of admissibility in the hierarchical prior selection,and we expect that our study could be helpful in providing some reference for choosing hierarchical priors. | Chengyuan Song Dongchu Sun | 2020 | Statistical Theory and Related Fields2020，4，2： | 0 |
| 17 | Editorial显示文摘Thanks to the efforts of many people,we are so delighted to see that the first issue of Statistical Theory and Related Fields(STARF)is published!At this moment,we would like to express our sincere gratitude to the East China Normal University(ECNU),the Chinese Association for Applied Statistics(CAAS),and Taylor&Francis(T&F),for their thoughtfully sponsoring and publishing jointly the STARF;to the authors of the 13 excellent articles in the first issue of STARF for their great supports;to the members of our editorial board for their efforts in handling papers in a short time period;to the staffs from the Department of Serial Publication at ECNU,from the School of Statistics at ECNU,and from T&F,for their efficient administrative and coordination work to make the new journal running well. | Jun Shao Dongchu Sun Danyu Lin | 2017 | Statistical Theory and Related Fields2017，1，1： | 0 |
| 18 | Editorial foreword显示文摘Statistical Theory and Related Fields ushered into its sec-ond year.Again,we would like to take this opportunityto express our sincere gratitude to all the authors andsupporters of this journal.The first article in the first issue of 2018 is a reviewpaper by Prentice and Huang for nutritional epidemi-ology methods,which reviews statistical challenges aswell as opportunities in obtaining reliable informationon dietary approaches to chronic disease prevention.This article is followed by three discussion papers,byFreedman and Shaw,Spiegelman,and Lin,and a rejoin-der by Prentice and Huang.The discussions and rejoin-der add more extensive results and extensions. | Jun Shao Dongchu Sun Danyu Lin | 2018 | Statistical Theory and Related Fields2018，2，1： | 0 |
| 19 | Second Issue,2017显示文摘After the successful publication of the first issue of Statistical Theory and Related Fields in August,we are very happy to see the second issue in print.We would like to take this opportunity to express our sincere gratitude to all the supporters of this journal. | Jun Shao Dongchu Sun Danyu Lin | 2017 | Statistical Theory and Related Fields2017，1，2： | 0 |
| 20 | A NEW METHOD TO COMPENSATE CLUTTER RANGE DEPENDENCE FOR FORWARD LOOKING AIRBORNE RADARS显示文摘The clutter direction-Doppler curves are not aligned on the near range bins for forward looking airborne radar. As a result, the performance of clutter suppression by Space-Time Adaptive Processing (STAP) degrades greatly because of the clutter range dependence. To deal with this problem, a new compensated method is proposed in this paper. The method rebuilds the clutter covariance matrix based on spatial high resolution Minimum Variance Distortionless Response (MVDR) spectrum, and then finds a matrix to transform the covariance matrix of short-range gate to the referred far-range gate. The method can compensate the clutter range dependence well. The simulation results show validity of the method. | Jiang Dongchu He Fei | 2010 | Journal of Electronics(China)2010，27，3： | 0 |
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