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Large-Sample Theory for Generalized Linear Models with Non-natural Link and Random Variates

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Acta Mathematicae Applicatae Sinica 2006年第1期22卷 115-126页

作者： Jie-li Ding xi-ru Chen School of Math and Statistics Wuhan University Wuhan 430072 China Graduate School the Chinese Academy of Sciences Beijing 100049 China

For generalized linear models （GLM）, in the ease that the regressors are stochastie and have different distributions and the observations of the responses may have different dimcnsionality, the asyinptotic theory of the maximum likelihood estimate （MLE） of the parameters are studied under the assumption of a non-natural link funetion,

关键词： Generalized linear models consistency asymptotic normality

A binary study of color-magnitude diagrams of 12 globular clusters

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Research in Astronomy and Astrophysics 2010年第2期10卷 135-141页

作者： Zhong-Mu Li Cai-Yan Mao ru-Heng Li ru-xi Li Mao-Cai Li College of Physics and Electronic Information Dali University Dali 671003 China National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China

Binary stars are common in star clusters and galaxies, but the detailed ef- fects of binary evolution are not taken into account in some color-magnitude diagram （CMD） studies. This paper studies the CMDs of twelve globular clusters via binary- star stellar populations. The observational CMDs of the star clusters are compared to those of binary-star populations, and then the stellar metallicities, ages, distances and reddenings of these star clusters are obtained. The paper also tests the different effects of binary and single stars on CMD studies. It is shown that binaries can better fit the observational CMDs of the sample globular clusters compared to single stars. This suggests that the effects of binary evolution should be considered when modeling the CMDs and stellar populations of star clusters and galaxies.

关键词： (Galaxy:) globular clusters: general -- galaxies: star clusters

HYDRAULIC RESEARCH OF AERATORS ON TUNNEL SPILLWAYS

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Journal of Hydrodynamics 2007年第3期19卷 330-334页

作者： ruAN Shi-ping WU Jian-hua WU Wei-wei xi ru-ze College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China Anhui Institute of Hydraulic Research Bengbu 233000 China

The selection of the configuration and size of an aerator was of importance for a tunnel spillway under the conditions of high speed flows. Experimental investigations were conducted on the effects of entrained air on the tunnel spillway in the Goupitan Project, based on the criterion of gravity similarity and the condition of aerated flow velocity of over 6 m/s, with physical models. The configurations of the aerators were presented of a larger bottom air concentration, to protect the tunnel spillway from cavitation as well as to see no water fills in the grooves.

关键词： cavitation aerator air concentration tunnel spillway the Goupitan Project

Effect of Chain Configuration on Thermal Conductivity of Polyethylene-A Molecular Dynamic Simulation Study

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Chinese Journal of Polymer Science 2020年第12期38卷 1418-1425页

作者： xiang Zhang Yu Wang ru xi Bin Wu Peng Chen Jia Sheng Qian Hao-Jun Liang Anhui Province Key Laboratony of Environment friendly Polymer Materials SchoolofChemistry and Chemical EngineeringAnhui UniversitHefei 230601China Department of Polymer Science and Technology University of Science and Technology of ChinaHefei 230011China

Stretched polyethylene(PE)fibers are found to have super high thermal conductivity,while the bulk of polyethylene is usually thermal insulating even for those with high crystalline degree.A molecular dynamic simulation is deliberately carried out to examine the relationship between chain configuration and thermal conductivity of *** this simulation study,independent and interacting PE chains being stretched are compared with the aim to find out the effect of stretching on thermal conductivity of *** crystallization conditions for PE bulk are *** is found that heat transports predominately along the covalent chain rather than across chains in PE *** simulation study helps to understand experimental findings on thermal conductivity of PE at different states.W e also predict that amorphous PE may be super thermally conductive if chains are strictly stretched along heat flux.

关键词： Thermal conductivity Molecular dynamic simulation Polyethylene Chain configuration

Microstructure and mechanical properties of high-strength high-pressure die-cast Mg–4Al–3La–1Ca–0.3Mn alloy

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Rare Metals 2021年第10期40卷 2956-2963页

作者： Peng-Fei Qin Qiang Yang Yu-Ying He Jing-Huai Zhang Jin-Shu xie xi-ru Hua Kai Guan Jian Meng Key Laboratory of Superlight Materials and Surface Technology Ministry of EducationHarbin Engineering UniversityHarbin 150001China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Department of Materials Science and Engineering University of TokyoTokyo 113-8654Japan

A new high-pressure die-cast(HPDC) Mg–4 Al–3 La–1 Ca–0.3 Mn(ALaX431) alloy with high strength has successfully been fabricated. This HPDC alloy in peakaged state exhibits tensile yield strength(TYS) of 220 MPa at room temperature and TYS of 145 MPa at 250 ℃,higher than the corresponding strength of HPDC Mg alloys reported so far. These high strengths are mainly due to the formation of fine grained structure, semi-continuous reticular structure consisting of stable Al_(3)La and(Mg,Al)2 Ca particles along grain boundaries and numerous nanoscale Al_(2)Ca precipitates within grains. Due to its higher strength than existing HPDC Mg alloys, the new developed alloy has great application potential.

关键词： Magnesium alloys High-pressure die-cast Mechanical property Intermetallic phase

Dynamic recombination of triplet excitons in polymer heterojunctions

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Chinese Physics B 2020年第11期29卷 463-468页

作者： Ya-Dong Wang Jian-Jun Liu xi-ru Wang Yan-xia Liu Yan Meng College of Information Science and Engineering Hebei North UniversityZhangjiakou 075000China Department of Electronics Polytech Nice SophiaNice 06200France Department of Physics Xingtai UniversityXingtai 054001China

The dynamic recombination of two triplet excitons with opposite spins in the heterojunction structure has been investigated using a nonadiabatic evolution *** demonstrate that luminous composite states including the excited polaron and the biexciton can be formed efficiently via the triplet exciton-triplet exciton reaction in the heterojunction and therefore this reaction can enhance the electroluminescence efficiency considerably,which is consistent qualitatively with experimental ***,we find that,although the heterojunctions are beneficial to the generation of luminescent particles,large band offset caused by the heterojunction structure is not helpful to improve the electroluminescence *** addition,the mechanism of the triplet exciton-triplet exciton reaction in heterojunction is different from that of two similar coupling *** results may deepen the understanding of the electroluminescence mechanism in polymer light-emitting devices.

关键词： polymers electron-lattice interaction excitons

LiFePO_(4)and LiMn_(2)O_(4)nanocomposite coating of LiNi_(0.815)Co_(0.15)Al_(0.035)O_(2)cathode material for high-performance lithium-ion battery

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Rare Metals 2022年第8期41卷 2560-2566页

作者： Zi-Wei Lan Jian-ru Zhang Yuan-Yuan Li ru-Heng xi Yong-xiang Yuan Lei Zhao xiao-Yi Hou Jia-Tai Wang Dickon H.L.Ng Cai-Hong Zhang College of Physics and Electronic Information Engineering Qinghai Normal UniversityXining810008China Department of Physical Science and Technology Lingnan Normal UniversityZhanjiang524048China Department of Physics The Chinese University of Hong KongHong Kong999077China

To solve the multiple problems of low ionic conductivity,fast capacity decay,and poor cycling performance of Nirich layered cathode materials,LiNi_(0.815)Co_(0.15)Al_(0.035)O_(2)@LiFePO_(4)@LiMn_(2)O_(4)(NCA@LFP@LMO,abbreviated as AFM)series cathode materials with different coating ratios were synthesized by a two-step ball milling method and precise control of the mass coating ratio of LFP and *** cathode material of NCA,LFP and LMO with a mass ratio of 8:1:1(A_(8)F_(1)M_(1))presents a more desirable nanocomposite coating and still can deliver a discharge capacity of 151.67 mAh·g^(-1)(with a 94.52%capacity retention)after 200 cycles at 1.0 ***.

关键词： coating cycling performance

Powerful CMD:a tool for color-magnitude diagram studies

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Research in Astronomy and Astrophysics 2017年第7期17卷 77-88页

作者： Zhong-Mu Li Cai-Yan Mao Qi-Ping Luo Zhou Fan Wen-Chang Zhao Li Chen ru-xi Li Jian-Po Guo Institute for Astronomy and History of Science and Technology Dali University Key Laboratory for Optical Astronomy National Astronomical ObservatoriesChinese Academy of Sciences College of Science and Technology Puer University

We present a new tool for color-magnitude diagram（CMD） studies, Powerful CMD. This tool is built based on the advanced stellar population synthesis（ASPS） model, in which single stars, binary stars, rotating stars and star formation history have been taken into account. Via Powerful CMD, the distance modulus, color excess, metallicity, age, binary fraction, rotating star fraction and star formation history of star clusters can be determined simultaneously from observed CMDs. The new tool is tested via both simulated and real star clusters. Five parameters of clusters NGC 6362, NGC 6652, NGC 6838 and M67 are determined and compared to other works. It is shown that this tool is useful for CMD studies, in particular for those utilizing data from the Hubble Space Telescope（HST）. Moreover, we find that inclusion of binaries in theoretical stellar population models may lead to smaller color excess compared to the case of single-star population models.

关键词： (stars:) Hertzsprung-russell and C-M diagrams - (Galaxy:) globular clusters general -galaxies clusters general

Parotid metastasis of rare lung adenocarcinoma:A case report

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World Journal of Clinical Cases 2024年第6期12卷 1182-1189页

作者： ru-xi Yan Lin-Bo Dou Zi-Jia Wang Xue Qiao Hong-Hai Ji Yan-Cong Zhang School of Stomatology Weifang Medical UniversityWeifang 261000Shandong ProvinceChina Department of Stomatology Dezhou People’s HospitalDezhou 253000Shandong ProvinceChina Department of Stomatology Dezhou Women and Children's HospitalDezhou 253000Shandong ProvinceChina

BACKGROUND Lung cancer(LC)is the leading cause of malignancy-related deaths *** most common sites of metastasis include the nervous system,bone,liver,respiratory system,and adrenal *** metastasis in the parotid gland is very rare,and its diagnosis presents a ***,we report a case of parotid metastasis in primary *** SUMMARY The patient was a 74-year-old male who was discovered to have bilateral facial asymmetry inadvertently two years *** right earlobe was slightly swollen and without pain or *** tomography(CT)examination showed bilateral lung space-occupying *** biopsy was performed and revealed adenocarcinoma(right-upper-lung nodule tissue).Positron emission tomography-CT examination showed:(1)Two hypermetabolic nodules in the right upper lobe of the lung,enlarged hy-permetabolic lymph nodes in the right hilar and mediastinum,and malignant space-occupying lesion in the right upper lobe of the lung and possible metastasis to the right hilar and mediastinal lymph nodes;and(2)multiple hypermetabolic nodules in bilateral parotid *** puncture biopsy was performed considering lung adenocarcinoma *** detection of lung biopsy specimens revealed an EGFR gene 21 exon L858R *** This case report highlights the challenging diagnosis of parotid metastasis in LC given its rare *** lesions should be differentiated from primary tumors of the parotid *** radiological imaging is unreliable,and puncture biopsy is needed for final diagnosis of this condition.

关键词： Lung cancer Metastasis Parotid gland Pathology Positron emission tomography/computed tomography Case report