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Static or dynamic pear shapes in radioactive nucleus ^(224)Rn?

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Nuclear Science and Techniques 2024年第11期35卷 164-173页

作者： Xian-Ye Wu Jin-ze Cao Kun-ning Zhao Zhong-min Liu Jian Xiang en-Fu Zhou College of Physics and Communication Electronics Jiangxi Normal UniversityNanchang 330022China Jiangxi Provincial Key Laboratory of Advanced Electronic Materials and Devices Nanchang 330022China College of Physics and Electronic engineering Chongqing Normal UniversityChongqing 401331China School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China

We report a comprehensive study on low-lying parity doublet states of ^(224)Rn by mixing both quadrupole-and octupoleshaped configurations in multireference covariant density functional theory,in which broken symmetries in configurations are restored using projection *** low-lying energy spectrum is reasonably reproduced when the shape fluctuations in both the quadrupole and octupole shapes are *** octupole transition strength in ^(224)Rn is found to be B(E3;3_(1)^(-)→0_(1)^(+))=43 W.u.,comparable to that in ^(224)Ra,whose data are 42(3)W.u..Our results indicate that ^(224)Rn shares similar low-energy structure with ^(224)Ra despite the excitation energy of first 3^(−)state of the former nucleus is higher than that of the *** study suggests ^(224)Rn is a candidate for the search for permanent electric dipole moment.

关键词： Covariant density functional theory Parity doublet bands Octupole correlations Electric transition strengths

Catalytic Oxidation of Cyclohexene with Molecular Oxygen on Hydrotalcite－like Compounds

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Chemical Research in Chinese Universities 1995年第3期11卷 256-258页

作者： Guo, Jun Wang, ning Jiao, Qing-ze Jiang, Da-zhen Yang, Guang-hui min, en-ze JILIN UNIV DEPT CHEMCHANGCHUN 130023PEOPLES R CHINA EDUC INST JILIN PROV DEPT CHEMCHANGCHUN 130021PEOPLES R CHINA RES INST PETR PROC BEIJING 100083PEOPLES R CHINA

ＣａｔａｌｙｔｉｃＯｘｉｄａｔｉｏｎｏｆＣｙｃｌｏｈｅｘｅｎｅｗｉｔｈＭｏｌｅｃｕｌａｒＯｘｙｇｅｎｏｎＨｙｄｒｏｔａｌｃｉｔｅ－ＩｉｋｅＣｏｍｐｏｕｎｄｓＧＵＯＪｕｎ，ＷＡＮＧＮｉｎｇ，ＪＩＡＯＱｉｎｇ－ｚｅａｎｄ... 详细信息

ＣａｔａｌｙｔｉｃＯｘｉｄａｔｉｏｎｏｆＣｙｃｌｏｈｅｘｅｎｅｗｉｔｈＭｏｌｅｃｕｌａｒＯｘｙｇｅｎｏｎＨｙｄｒｏｔａｌｃｉｔｅ－ＩｉｋｅＣｏｍｐｏｕｎｄｓＧＵＯＪｕｎ，ＷＡＮＧＮｉｎｇ，ＪＩＡＯＱｉｎｇ－ｚｅａｎｄＪＩＡＮＧＤａ－ｚｈｅｎ（Ｄｅｐａ...

关键词： Catalytic Oxidation Cyclohexene Molecular oxygen

Pilaring of Zn_2Al Layered Double Hydroxide by Dawson Polyoxometalate Anions

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Chemical Research in Chinese Universities 1998年第2期14卷 68-70页

作者： GUO Jun LI Yun-lun JIAO Qing-ze JIANG Da-zhen min en-ze Department of Chemistry Jilin UniversityChangchun130023 Research Institute of Petroleum Processing Beijing100083

Zn2Al layered double hydroxide pillared with Dawson polyoxometalates,P2W17ZO8-61(Z=Mn2+,Co2+,Ni2+,Cu2+,Zn2+)was prepared.A basal space ofca.16 nm indicates the intercalated Dawson ions to be oriented with their C2 axis perpendicular to the double hydroxide layers(with the exception of P2W17ZnLDH).The IR and^(13)P MASNMR spectral reveal that the Dawson ions retain their integrity in the interlayer space of LDH.A preliminary study shows that these compounds are highly active catalysts for the oxidation of cyclohexene with molecular oxygen.

关键词： Pillaring Dawson structure Polyoxometalate anions

Microstructure and texture evolution of Cu-Cr-Co-Ti alloys during the two-stage cryorolling

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Rare Metals 2024年第9期43卷 4535-4547页

作者： Jia-Jun Zhang Long-Jian Li Zhi-Feng Liu zong-ning Chen en-Yu Guo Hui-Jun Kang Ren-Geng Li Tong-min Wang Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Center of Hyper-Gravity Experimental and Interdisciplinary Research Zhejiang UniversityHangzhou 310058China ningbo Institute of Dalian University of Technology Ningbo 315000China Key Laboratory for Light-Weight Materials Nanjing Tech UniversityNanjing 210009China

This study entailed an investigation of the mechanical properties,microstructural and texture orientation evolutions of Cu-Cr-Co-Ti alloys prepared via twostage cryorolling and intermediate aging *** this end,X-ray diffraction and electron backscatter diffraction were *** results indicate that the two-stage cryorolling and intermediate aging treatments led to the development of profuse twin bundles and significantly enhanced the mechanical *** initial cryorolling led to coplanar slip and developed a strong Y({111})orientation,accelerating the formation of Goss({011})orientation and a Brass-type *** intermediate aging treatment relieved the restriction on dislocation slip and reoriented the grains toward the Copper({112})and Z({111})*** Z orientation,with a relatively high volume fraction,dominated the *** cryorolling intensified twinning and shear banding,transforming the Copper-type shear bands into Brass-type shear bands with rhomboidal prism *** areas inside the Brasstype shear bands exhibited a Y orientation,and the areas outside the shear bands exhibited a stable Brass-type *** evident decrease in the weighted Schmid factors demonstrated that the two-stage cryorolling and intermediate aging treatment can modify the texture evolution and aid the design of high-performance Cu alloys.

关键词： Copper alloys Two-stage cryorolling Macrotexture evolution Electron backscatter diffraction Schmid factor

A method for observing tridimensional morphology of sulfide inclusions by non-aqueous solution electrolytic etching

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Journal of Iron and Steel Research International 2019年第3期26卷 275-284页

作者： Dong Zhang Ping Shen Jian-bo Xie Jin-min An zong-ze Huang Jian-xun Fu State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrous Metallurgy School of Materials Science and Engineering Shanghai University Shanghai 200072 China State Key Laboratory of Development and Application Technology of Automotive Steel (baosteel Group) Shanghai 20190 China

Three-dimensional investigation of sulfides is required in order to improve the mechanical properties of steel by controlling the sulfides in the steel.A method including its principles and device is introduced for the investigation of threedimensional morphology of *** method is suitable for gear steel,free cutting steel,non-quenched steel,tempered steel(ws≥0.02 wt.%),*** influences of current density,time,and temperature on the exposure degree of sulfide inclusions were investigated by using 16MnCrS5 *** best parameters of electrolytic etching of sulfur steel,as found by experimentation,are as follows:current density,37.5-52.5 mA/cm2;time,30-35 min;and temperature,—10 to 0℃.Under these conditions,the three-dimensional morphology of sulfide inclusions in sulfur-bearing steel can be exposed effectively.

关键词： Sulfide Non-aqueous electrolyte Electrolytic etching Three-dimensional morphology

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World Journal of Gastrointestinal Oncology 2022年第10期14卷 1981-2003页

作者： en-min Huang ning Ma Tao Ma Jun-Yi Zhou Wei-Sheng Yang Chuang-Xiong Liu ze-Hui Hou Shuang Chen Zhen zong Bing Zeng Ying-Ru Li Tai-Cheng Zhou Department of Gastroenterological Surgery and Hernia Center The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina Department of Gastrointestinal Surgery The Sixth Affiliated HospitalSun Yatsen UniversityGuangzhou 510655Guangdong ProvinceChina Department of Gastroenterological Surgery The Second Affiliated HospitalNanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND Cuproptosis has recently been considered a novel form of programmed cell *** date,long-chain non-coding RNAs(lncRNAs)crucial to the regulation of this process remain *** To identify lncRNAs linked to cuproptosis in order to estimate patients'prognoses for hepatocellular carcinoma(HCC).METHODS Using RNA sequence data from The Cancer Genome Atlas Live Hepatocellular Carcinoma(TCGA-LIHC),a co-expression network of cuproptosis-related genes and lncRNAs was *** HCC prognosis,we developed a cuproptosisrelated lncRNA signature(CupRLSig)using univariate Cox,lasso,and multivariate Cox regression ***-Meier analysis was used to compare overall survival among high-and low-risk groups stratified by median CupRLSig risk ***,comparisons of functional annotation,immune infiltration,somatic mutation,tumor mutation burden(TMB),and pharmacologic options were made between high-and low-risk *** Three hundred and forty-three patients with complete follow-up data were recruited in the *** correlation analysis identified 157 cuproptosis-related lncRNAs related to 14 cuproptosis ***,we divided the TCGA-LIHC sample into a training set and a validation *** univariate Cox regression analysis,27 LncRNAs with prognostic value were identified in the training *** lasso regression,the multivariate Cox regression model determined the identified risk equation as follows:Risk score=(0.2659×PICSAR expression)+(0.4374×FOXD2-AS1 expression)+(-0.3467×AP001065.1 expression).The CupRLSig high-risk group was associated with poor overall survival(hazard ratio=1.162,95%CI=1.063-1.270;Pents were divided into two groups depending upon their median risk *** accuracy was further supported by receiver operating characteristic and principal component analysis as well as the validation *** area under the curve of 0.741 was found to be a better predictor of HCC prognosis as compar

关键词： Hepatocellular carcinoma Cuproptosis Long-chain non-coding RNAs Prognosis Tumor microenvironment Immunotherapy

Influence of Cryorolling on the Precipitation of Cu–Ni–Si Alloys: An In Situ X-ray Diffraction Study

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Acta Metallurgica Sinica(english Letters) 2018年第10期31卷 1089-1097页

作者： Wei Wang zong-ning Chen en-Yu Guo Hui-Jun Kang Yi Liu Cun-Lei Zou Ren-Geng Li Guo-Mao Yin Tong-min Wang Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences

The effect of cryorolling on the precipitation process of deformed Cu-Ni-Si alloys was investigated through in situ synchrotron X-ray diffraction technique. The results demonstrate that the precipitation process is significantly accelerated by cryorolling. Cryorolling produces higher dislocation density, which provides more heterogeneous nucleation sites for Ni2Si precipitates, hence promotes precipitation. In the early stage of aging, the enhanced nucleation of precipitates accelerates the depletion of supersaturation, and finer precipitates are obtained. In addition, recrystallization is promoted as a result of high stored energy in the cryorolled Cu-Ni-Si alloys, which facilitates the formation of discontinuous precipitation in the late stage of aging.

关键词： Copper alloy Cryogenic Rolling Aging precipitation Synchrotron radiation X-ray diffraction

Effect of Metallic Additives on Structure and Catalytic Properties of Supported NiPB/SiO_2 Catalyst

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Chinese Chemical Letters 1999年第9期10卷 803-806页

作者： Ai Zeng MA Wan Zhen LU en ze min(Research Institute of Petroleum Processing. Beijing 100083) Res Inst Petr Proc Beijing 100083 Peoples R China

A new preparation method was proposed to deposit amorphous alloys alloys containing NiPand metallic metallic additives such as ***. and *** different effects of metallic additive onstructure and catalytic properties of supported amorphous NiMPB/SiO2 (M=Fe, Co. Cu) cafalysts were observed,and the improvement of catalytic activity due to heating pretreatment in hydrogenwas found.

关键词： Amorphous alloy. catalyst hydrogenation acetylene. ethene.

非晶态合金催化剂用于葡萄糖加氢制山梨醇的研究

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精细化工 1999年第5期16卷 41-44页

作者：慕旭宏王宣宗保宁舒兴田闵恩泽中国石化总公司石油化工科学研究院北京100083

采用石油化工科学院研制的非晶态合金催化剂进行葡萄糖加氢，考察了温度、压力、ｐＨ值、剂糖比和反应时间等因素对加氢反应的影响，并与其它ＲａｎｅｙＮｉ类催化剂进行了对比。结果表明，使用ＳＲＮＡ－３非晶态合金催化剂进行葡... 详细信息

采用石油化工科学院研制的非晶态合金催化剂进行葡萄糖加氢，考察了温度、压力、ｐＨ值、剂糖比和反应时间等因素对加氢反应的影响，并与其它ＲａｎｅｙＮｉ类催化剂进行了对比。结果表明，使用ＳＲＮＡ－３非晶态合金催化剂进行葡萄糖加氢，当反应温度为１３０～１４０℃、压力为５～９ＭＰａ、ｐＨ值为８．３５、剂糖质量比为１％、反应时间为７０～１２０ｍｉｎ时，转化率可达１００％，产品色度好。ＳＲＮＡ－３催化剂的葡萄糖加氢活性好于ＲａｎｅｙＮｉ催化剂，重复使用时，也可保持较高活性。

关键词：山梨醇葡萄糖非晶态合金催化剂加氢