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| 1 | FREQUENTIST MODEL AVERAGING ESTIMATION:A REVIEW显示文摘In applications, the traditional estimation procedure generally begins with model selection.Once a specific model is selected, subsequent estimation is conducted under the selected model withoutconsideration of the uncertainty from the selection process. This often leads to the underreportingof variability and too optimistic confidence sets. Model averaging estimation is an alternative to thisprocedure, which incorporates model uncertainty into the estimation process. In recent years, therehas been a rising interest in model averaging from the frequentist perspective, and some importantprogresses have been made. In this paper, the theory and methods on frequentist model averagingestimation are surveyed. Some future research topics are also discussed. | Haiying WANG Xinyu ZHANG Guohua ZOU Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,China. | 2009 | Journal of Systems Science & Complexity2009，22，4： | 14 |
| 2 | The effect of melt overheating on the melt structure transition and solidified structures of Sn-Bi40 alloy显示文摘Evolution of the electrical resistivity of Sn-40wt%Bi melt with time under different overheating temperatures during isothermal experiments has been studied, and the relationship between different melt state, solidification behavior and solidified structure has also been investigated. The results show that the melt structure transition revealed by the abnormal change of resistivity would take place within a certain holding time just when the holding temperature is above a certain critical, and that the higher the temperature above the critical, the shorter the 'incubation period' of the melt structure transition, and the faster the transition speed. The results of solidification experiments suggest that the melt structure transition caused by different holding time at the same temperature can lead to a higher so-lidification undercooling degree, finer grain size and change of microscopic pattern. Further exploration indicates that the solidification undercooling degree can come to a head when the melt is held at the specific temperature for a given time. The functionary mechanism of the phenomena above is also discussed briefly. | CHEN HongSheng ZU FangQiu CHEN Jie ZOU Li DING GuoHua HUANG ZhongYue | 2008 | Science China(Technological Sciences)2008，51，9： | 11 |
| 3 | Effects of Ce-rich RE on microstructure and mechanical properties of as-cast Mg-8Li-3Al-2Zn-0.5Nd alloy with duplex structure显示文摘The effects of Ce-rich RE on the microstructure and mechanical properties of as-cast Mg-8Li-3Al-2Zn-0.5Nd-x RE(x = 0, 1, 2, 3 wt%) alloys were investigated. The results indicated that the as-cast Mg-8Li-3Al-2Zn-0.5Nd alloy mainly consisted of α-Mg, β-Li, AlLi, MgLi2 Al and Al2 Nd phases. With the addition of Ce-rich RE in the alloy,Al3 RE and Al2 RE phases generated and gradually grew into net-like or block-like structure. With the addition of RE, Al-RE phases generated by consuming Al element and, thus, less Al element was dissolved in the matrix and less AlLi phase formed. Furthermore, less AlLi phase means that more Li element released to cause the increase ofβ-Li phase and refine the α-Mg phase. Under the influence of these factors, adding more RE led to higher elongation and lower tensile strength and hardness. With the addition of Ce-rich RE, the yield strength and ultimate tensile strength of the as-cast Mg-8Li-3Al-2Zn-0.5Nd alloy gradually decreased from 180 to 152 MPa and from 215 to 193 MPa, respectively, while the elongation was remarkably improved from 21.1% to 40.2%. | Xiang Peng Guohua Wu Lv Xiao Hao Ji Jie Zhang Wenbing Zou Zhongquan Li Wencai Liu | 2019 | Progress in Natural Science:Materials International2019，29，1： | 3 |
| 4 | Stretchable,Rehealable,Recyclable,and Reconfigurable Integrated Strain Sensor for Joint Motion and Respiration Monitoring显示文摘Cutting-edge technologies of stretchable,skin-mountable,and wearable electronics have attracted tremendous attention recently due to their very wide applications and promising performances.One direction of particular interest is to investigate novel properties in stretchable electronics by exploring multifunctional materials.Here,we report an integrated strain sensing system that is highly stretchable,rehealable,fully recyclable,and reconfigurable.This system consists of dynamic covalent thermoset polyimine as the moldable substrate and encapsulation,eutectic liquid metal alloy as the strain sensing unit and interconnects,and off-the-shelf chip components for measuring and magnifying functions.The device can be attached on different parts of the human body for accurately monitoring joint motion and respiration.Such a strain sensing system provides a reliable,economical,and ecofriendly solution to wearable technologies,with wide applications in health care,prosthetics,robotics,and biomedical devices. | Chuanqian Shi Zhanan Zou Zepeng Lei Pengcheng Zhu Guohua Nie Wei Zhang Jianliang Xiao | 2021 | Research2021，，1： | 3 |
| 5 | Frequentist model averaging for linear mixed-effects models显示文摘 | Xinjie CHEN Guohua ZOU Xinyu ZHANG | 2013 | Frontiers of Mathematics in China2013，8，3： | 2 |
| 6 | Two Noniterative Algorithms for Computing Posteriors 显示文摘 | Jun Yang Guohua Zou and Yu Zhao | 2008 | Computational Statistics2008，23，： | 1 |
| 7 | Minimax and -minimax estimation for the Poisson distribution under LINEX loss when the parameter space is restricted显示文摘 | Alan T K WAN Guohua Zou Andy | 2000 | Statistics and Probability Letters2000，50，： | 1 |
| 8 | Least squares model averaging by mallows criterion显示文摘 | Wang A T K Zhang Xinyu Zou Guohua | 2010 | J Econometrica2010，156，： | 1 |
| 9 | Microwave-assisted extraction of atrazine from soil followed by rapid detection using commercial ELISA kit 显示文摘 | Xiong Guohua Ling Jinming Zou Shichun | 1998 | Analytica Chimica Acta1998，37，1： | 1 |
| 10 | Choice of weights in FMA estimators under general parametric models显示文摘The choice of weights in frequentist model average estimators is an important but difficult problem. Liang et al. (2011) suggested a criterion for the choice of weight under a general parametric framework which is termed as the generalized OPT (GOPT) criterion in the present paper. However, no properties and applications of the criterion have been studied. This paper is devoted to the further investigation of the GOPT criterion. We show that how to use this criterion for comparison of some existing weights such as the smoothed AIC-based and BIC-based weights and for the choice between model averaging and model selection. Its connection to the Mallows and ordinary OPT criteria is built. The asymptotic optimality on the criterion in the case of non-random weights is also obtained. Finite sample performance of the GOPT criterion is assessed by simulations. Application to the analysis of two real data sets is presented as well. | ZHANG XinYu ZOU GuoHua LIANG Hua | 2013 | Science China Mathematics2013，56，3： | 1 |
| 11 | The Analysis of Flow around a 2-D Airfoil at Low Reynolds Number 显示文摘 | Ye Jian Lin Guohua Zou Zhengping Lu Lipeng | 2002 | Journal of Aerospace Power2002，18，1： | 1 |
| 12 | An internal amplification control for quantitative nucleic acid analysis using nanoparticle-based dipstickbiosensors显示文摘 | Huan Huang Li Jin Xian Yang Qinxin Song Bingjie Zou Shiwen Jiang Lizhou Sun Guohua Zhou | 2013 | Biosensors and Bioelectronics2013，，： | 1 |
| 13 | Management of Lisfranc injury with anterolateral calcaneal compression fracture显示文摘To the Editor:The mechanism of Lisfranc injury is complex and may cause different patterns of fractures or dislocation of the midfoot complex.Abduction force injury is a special injury pattern,which may cause the fracture or(and)dislocation of the lateral column of the Lisfranc joint,especially the cuboid.[1,2,3]However,the anterolateral calcaneus is less commonly involved.Since the fragment of the calcaneocuboid(CC)joint facet is too uncon-spicuous to manifest on a plain X-ray,and surgeons always pay more attention to the Lisfranc joint,anterolateral calcaneal compression fracture and even Chopart joint injuries are often overlooked,which may lead to a delayed surgical management,chronic foot deformities,and functional disability. | Wenqi Gu Rui Zhang Wanjun Liu Zhongmin Shi Guohua Mei Jianfeng Xue Jian Zou Xiaokang Wang Jiantao Jiang | 2022 | Chinese Medical Journal2022，，6： | 1 |
| 14 | Impaired response inhibition function in abstinent heroin dependents:an fMRI study显示文摘 | Fu Liping Bi Guohua Zou Zhitong | 2008 | Neurosci Letters2008，438，： | 1 |
| 15 | Polymer-grafted hollow mesoporous silica nanoparticles integrated with microneedle patches for glucose-responsive drug delivery显示文摘A glucose-mediated drug delivery system would be highly satisfactory fordiabetes diagnosis since it can intelligently release drug based on blood glucose levels.Herein,a glucose-responsive drug delivery system by integrating glucose-responsivepoly(3-acrylamidophenylboronic acid)(PAPBA)functionalized hollow mesoporous silicananoparticles(HMSNs)with transcutaneous microneedles(MNs)has been designed.Thegrafted PAPBA serves as gatekeeper to prevent drug release from HMSNs atnormoglycemic levels.In contrast,faster drug release is detected at a typicalhyperglycemic level,which is due to the change of hydrophilicity of PAPBA at highglucose concentration.After transdermal administration to diabetic rats,an effectivehypoglycemic effect is achieved compared with that of subcutaneous injection.Theseobservations indicate that the designed glucose-responsive drug delivery system has apotential application in diabetes treatment. | Yaping WANG Songyue CHENG Wei HU Xue LIN Cong CAO Shufen ZOU Zaizai TONG Guohua JIANG Xiangdong KONG | 2021 | Frontiers of Materials Science2021，15，1： | 1 |
| 16 | Average Estimation of Semiparametric Models for High-Dimensional Longitudinal Data显示文摘Model average receives much attention in recent years.This paper considers the semiparametric model averaging for high-dimensional longitudinal data.To minimize the prediction error,the authors estimate the model weights using a leave-subject-out cross-validation procedure.Asymptotic optimality of the proposed method is proved in the sense that leave-subject-out cross-validation achieves the lowest possible prediction loss asymptotically.Simulation studies show that the performance of the proposed model average method is much better than that of some commonly used model selection and averaging methods. | ZHAO Zhihao ZOU Guohua | 2020 | Journal of Systems Science & Complexity2020，33，6： | 1 |
| 17 | PDLLA length on anti-breast cancer efficacy of acid-responsive self-assembling mPEG-PDLLA–docetaxel conjugates显示文摘Engineering small-molecule drugs into nanoparticulate formulations provides an unprecedented opportunity to improve the performance of traditional chemo drugs,but suffers from poor compatibility between drugs and nanocarriers.Stimuli-responsive mPEG-PDLLA–drug conjugate-based nanomedicines can facilitate the exploitation of beneficial properties of the carrier and enable the practical fabrication of highly efficacious self-assembled nanomedicines.However,the influence of hydrophobic length on the performance of this type of nanomedicine is little known.Here we synthesized two acid-sensitive ketal-linked mPEG-PDLLA–docetaxel prodrugs with different lengths of PDLLA,and engineered them into self-assembled sub-20 nm micellar nanomedicines for breast cancer chemotherapy.We found that the nanomedicine consisting of a mPEG-PDLLA–docetaxel prodrug with the shorter length of PDLLA stood out due to its potent cytotoxicity,deep penetration into multicellular spheroids,and improved in vivo anticancer performance.Additionally,our prodrug-based nanomedicines outperformed the generic formulation of commercial Nanoxel in terms of safety profile,tolerated doses,and tumor suppression.Our findings indicate that the hydrophobic content of a polymeric prodrug nanomedicine plays an important role in the performance of the nanomedicine,and should be instructive for developing polymeric prodrug-based nanomedicines with clinical translational potential. | Tao Liu Hui Zou Jingqing Mu Xi Zhang Guohua Liu Na Yu Bo Yuan Xiaoyong Yuan Xingjie Liang Shutao Guo | 2023 | Chinese Chemical Letters2023，34，9： | 0 |
| 18 | N,O co-doped porous carbon with rich pseudocapacitive groups exhibiting superior energy density in an acidic 2.4 V Li_(2)SO_(4)electrolyte显示文摘Designing a carbon material with a unique composition and surface functional groups for offering high specific capacity in a wide voltage window is of great significance to improve the energy density for the supercapacitor in a cheap and eco-friendly aqueous electrolyte.Herein,we develop an efficient strategy to synthesize a N,O co-doped hierarchically porous carbon(NODPC-1.0)with moderate specific surface area and pore volume as well as rich heteroatoms using a deep eutectic solvent(DES)as an activator.It is found that NODPC-1.0 with a large proportion of pseudocapacitive functional groups(pyrrole-N,pyridineN and carbonyl-quinone)can work stable in an acidic 2 mol/L Li_(2)SO_(4)(pH 2.5)electrolyte,exhibiting specific capacities of 375 and 186 F/g at the current densities of 1.0 and 100 A/g,respectively.Also,the assembled symmetric capacitor using the NODPC-1.0 as the active material and 2 mol/L acidic Li_(2)SO_(4)(pH 2.5)as the electrolyte shows an outstanding energy density of 74.4 Wh/kg at a high power density of 1.44 k W/kg under a broad voltage window(2.4 V).Relevant comparative experiments indicate that H+of the acidic aqueous electrolyte plays a crucial part in enhancement the specific capacity,and the abundant pseudocapacitive functional groups on the surface of the NODPC-1.0 sample play the key role in the improvement of electrochemical cycle stability under a broad voltage window. | Xiao Wang Kaixiang Zou Weijing Wu Yuanfu Deng Guohua Chen | 2022 | Chinese Chemical Letters2022，33，8： | 0 |
| 19 | Design, Synthesis and Antitubulin Activity of Novel Podophyllotoxin Derivatives as Potent Anticancer Agent显示文摘 | BAI Lifei WANG Renlei ZOU Ye XU Guohua | 2015 | Chemical Research in Chinese Universities2015，31，6： | 0 |
| 20 | Post-J test inference in non-nested linear regression models显示文摘This paper considers the post-J test inference in non-nested linear regression models. Post-J test inference means that the inference problem is considered by taking the first stage J test into account. We first propose a post-J test estimator and derive its asymptotic distribution. We then consider the test problem of the unknown parameters, and a Wald statistic based on the post-J test estimator is proposed. A simulation study shows that the proposed Wald statistic works perfectly as well as the two-stage test from the view of the empirical size and power in large-sample cases, and when the sample size is small, it is even better. As a result,the new Wald statistic can be used directly to test the hypotheses on the unknown parameters in non-nested linear regression models. | CHEN XinJie FAN YanQin WAN Alan ZOU GuoHua | 2015 | Science China Mathematics2015，58，6： | 0 |
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