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Prediction of synthesis cross sections of new moscovium isotopes in fusion‑evaporation reactions

Nuclear Science and Techniques 2023年第1期34卷 86-101页

作者： Peng‑hui Chen Hao Wu Zu‑Xing Yang Xiang‑Hua zeng Zhao‑qing Feng School of Physical Science and Technology Yangzhou UniversityYangzhou 225009China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China RIKEN Nishina Center WakoSaitama 351‑0198Japan College of Electrical Power and Energy EngineeringYangzhou UniversityYangzhou 225009China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510641China

In the framework of the dinuclear system model,the synthesis mechanism of the superheavy nuclides with atomic numbers Z=112,114,115 in the reactions of projectiles 40,^(48)Ca bombarding on targets^(238)U,^(242)Pu,and^(243)Am within a wide interval of incident energy has been investigated *** on the available experimental excitation functions,the dependence of calculated synthesis cross-sections on collision orientations has been studied *** total kinetic energy(TKE)of these collisions with fixed collision orientation shows orientation dependence,which can be used to predict the tendency of kinetic energy *** TKE is dependent on incident energies,as discussed in this *** applied the method based on the Coulomb barrier distribution function in our *** allowed us to approximately consider all the collision orientations from tip-tip to *** calculations of excitation functions of^(48)Ca+^(238)U,^(48)Ca+242Pu,and^(48)Ca+^(243)Am are in good agreement with the available experimental *** isospin effect of projectiles on production cross-sections of moscovium isotopes and the influence of the entrance channel effect on the synthesis cross-sections of superheavy nuclei are also discussed in this *** synthesis cross-section of new moscovium isotopes 278−286 Mc was predicted to be as large as hundreds of pb in the fusion-evaporation reactions of^(35,37)Cl+^(248)Cf,^(38,40)Ar+^(247)Bk,^(39,41)K+247 Cm,^(40,42,44,46)Ca+^(243)Am,45 Sc+^(244)Pu,and^(46,48,50)Ti+237Np,51 V+^(238)U at some typical excitation energies.

关键词： Dinuclear system model Superheavy nuclei Complete fusion reactions Production cross-section

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Production of neutron-rich actinide isotopes in isobaric collisions via multinucleon transfer reactions

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Nuclear Science and Techniques 2023年第10期34卷 166-177页

作者： Peng-hui Chen Chang Geng Zu-Xing Yang Xiang-Hua zeng Zhao-qing Feng School of Physical Science and Technology Yangzhou UniversityYangzhou 225009China RIKEN Nishina Center WakoSaitama 351‑0198Japan College of Electrical Power and Energy EngineeringYangzhou UniversityYangzhou 225009China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510641China

We systematically calculated the multinucleon transfer reactions of ^(208)Os,^(208)Pt,^(208)Hg,^(208)Pb,^(208)Po,^(208)Rn,^(208)Ra,and ^(132,136) Xe when bombarded on ^(232) Th and ^(248) Cm at Coulomb barrier energies within the dinuclear system *** results are in good agreement with the available experimental *** influence of Coulomb and shell effects on actinide production in these reactions has been rigorously *** calculated and analyzed the potential energy surface (PES) and total kinetic energy (TKE) mass distributions for the reactions involving ^(208)Hg,^(208)Pb,and ^(208) Po with ^(248) Cm and ^(232)*** PES and TKE spectra shed light on the fragment formation mechanisms in multinucleon transfer reactions,with clear indications of isospin and shell *** production cross sections for multinucleon transfer products show a strong dependence on isobar projectiles with a mass number A=*** projectiles with high N/Z ratios are advantageous for generating neutron-rich target-like ***,products induced by isobar projectiles with larger charge numbers tend to shift toward proton-rich *** intertwining of the Coulomb potential and shell effect is evident in the production cross sections of actinide *** from reactions induced by radioactive projectiles,we anticipate the discovery of several new actinide isotopes near the nuclear drip lines,extending our reach into the superheavy nuclei domain.

关键词： Dinuclear system model Isobaric collisions Multinucleon transfer reactions Neutron-rich actinides

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沥青路面裂缝高聚物注浆效果试验评价研究

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山西建筑 2025年第2期51卷 129-132页

作者：祁敏曾辉江苏路通装配科技有限公司江苏宜兴214200 江苏众智交通创新产业研究院有限公司江苏南京211899

非开挖式注浆技术采用高聚物双组分材料注浆,能有效填充沥青路面裂缝处半刚性基层和底基层层间脱空,排出结构层水分,密封裂缝,达到补强路面结构层效果。为了评价注浆技术应用效果,通过施工过程注浆孔检测、注浆前后探地雷达图谱测试、... 详细信息

非开挖式注浆技术采用高聚物双组分材料注浆,能有效填充沥青路面裂缝处半刚性基层和底基层层间脱空,排出结构层水分,密封裂缝,达到补强路面结构层效果。为了评价注浆技术应用效果,通过施工过程注浆孔检测、注浆前后探地雷达图谱测试、弯沉测试以及取芯等方式来评判,结果显示注浆后裂缝处弯沉能降低20%,两侧弯沉差明显减小,三维探地雷达检测显示裂缝注浆后灰度图内部未出现异常信号,无振幅加强现象,证明裂缝处浆液被填充。

关键词：非开挖注浆高聚物半刚性基层三维探地雷达横向裂缝

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Inflation and Singularity of a Bianchi Type-VII0 Universe with a Dirac Field in the Einstein–Cartan Theory

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Chinese Physics Letters 2011年第8期28卷 360-363页

作者： HUANG zeng-Guang FANG Wei LU hui-qing School of Science Huaihai Institute of TechnologyLianyungang 222005 Department of Physics Shanghai Normal UniversityShanghai 200234 The Shanghai Key Lab of Astrophysics Shanghai 200234 Department of Physics Shanghai UniversityShanghai 200444

We discuss Bianchi type-VII0 cosmology with a Dirac field in the Einstein–Cartan(E−C)theory and obtain the equations of the Dirac and gravitational fields in the E-C theory.A Bianchi type-VII0 inflationary solution i... 详细信息

关键词： theory Cartan Dirac

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Inflation and Singularity in Einstein-Cartan Theory

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Chinese Physics Letters 2011年第2期28卷 254-257页

作者： HUANG zeng-Guang FANG Wei LU hui-qing School of Science Huaihai Institute of TechnologyLianyungang 222005 Department of Physics Shanghai Normal UniversityShanghai 200234 Department of Physics Shanghai UniversityShanghai 200444 The Shanghai Key Lab of Astrophysics Shanghai Normal UniversityShanghai 200234

Within the framework of Einstein-Cartan theory,we obtain a general condition leading to singularity and inflation for all Bianchi cosmological *** the spin energy is smaller than anisotropic energy density(i.e.S^(2)σ^(2)-pv/^(2)(pv is vacuum energy density),the Universe can undergo an inflation *** of Bianchi type-IX,I and V cosmological models are discussed.

关键词： phase Einstein singularity

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Consideration of green intelligent steel processes and narrow window stability control technology on steel quality

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International Journal of Minerals,Metallurgy and Materials 2021年第8期28卷 1264-1273页

作者： Lu Lin Jia-qing zeng Metallurgical Technology Institute Central Iron and Steel Research InstituteBeijing 100081China

In order to promote the intelligent transformation and upgrading of the steel industry, intelligent technology features based on the current situation and challenges of the steel industry are discussed in this paper. Based on both domestic and global research, functional analysis, reasonable positioning, and process optimization of each aspect of steel making are expounded. The current state of molten steel quality and implementation under narrow window control is analyzed. A method for maintaining stability in the narrow window control technology of steel quality is proposed, controlled by factors including composition, temperature, time, cleanliness, and consumption(raw material). Important guidance is provided for the future development of a green and intelligent steel manufacturing process.

关键词： steel manufacturing process steelmaking narrow window brand value green and intelligence process function

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Developing laterite nickel ore leaching residue as sustainable blast furnace charge

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Journal of Iron and Steel Research International 2022年第11期29卷 1760-1770页

作者： qing-yu Tang Kai-jia Wu Min Gan Xiao-hui Fan zeng-qing Sun Hao Lv Guo-jing Wong School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals Changsha 410083HunanChina

A kind of leaching residue generated during high pressure acid leaching of laterite nickel ore is creatively prepared as blast furnace charge for *** show that the briquettes with uniform shape,compressive strength higher than 72.3 N/pellet,and cracking temperature over 400℃can be obtained by the non-binder briquetting with water content of 12.2 wt.%and pressure of 30 *** preheating at 975℃for 12 min and roasting at 1225℃for 15 min,the strength of the roasted briquettes can reach 2815 N/pellet,and the iron grade is 59.27 wt.%.And the sulfur content can be simultaneously reduced to 0.067 wt.%.The obtained briquettes achieve adequate reducibility index,reduction degradation index,reduction swelling index,softening and melting temperatures,which are suitable for blast furnace *** results show that this method cannot only effectively treat the leaching residue to reduce the risk of environmental pollution,but also realize the utilization of leaching residue.

关键词： High pressure acid leaching residue Blast furnace charge Briquetting Desulfurization Metallurgical Performance

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Primary or metastatic lung cancer?Sebaceous carcinoma of the thigh:A case report

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World Journal of Clinical Cases 2022年第14期10卷 4586-4593页

作者： Xiao-Lin Wei qing Liu Qiang-Lin zeng hui Zhou Department of Respirology Taikang Sichuan Southwest Hospital Company LimitedChengdu 610095Sichuan ProvinceChina Department of Abdominal Oncology Cancer CenterWest China HospitalSichuan UniversityChengdu 610000Sichuan ProvinceChina Department of Respiratory and Critical Care Medicine The Affiliated Hospital of Chengdu University School of Clinical MedicineChengdu UniversityChengdu 610081Sichuan ProvinceChina

BACKGROUND Sebaceous carcinoma(SC),a malignancy primarily characterized by aggressive growth,affects cutaneous tissues of the periocular *** SC is extremely rare,especially in the extremities,as evidenced by only a handful of reported *** SUMMARY A 65-year-old man presented with a rapidly enlarging swelling on the left inner thigh,which was initially misdiagnosed as a subcutaneous *** lesion had appeared two months prior to *** examination revealed a cauliflower-like swollen content,with an ulcerated and infected mass located on his left *** the same time,we observed solitary nodular lesions in his lungs and brain,with biopsy pathology of the lung lesions found to be consistent with the mass in the *** patient received chemotherapy comprising cis-platinum with fluorouracil,followed by targeted therapy with anlotinib hydrochloride and chemotherapy with vinorelbine,implantation of iodine-125 seeds in the thigh and pulmonary *** initial stage intervention achieved partial *** efficacy of maintenance treatment was evaluated as stable disease after the first 5 cycles;however,the patient developed a new brain lesion after the sixth cycle of treatment,which resulted in progressive disease and he received whole brain gamma knife *** We analyzed the clinical presentation,imaging features,pathology and treatment of a rare case of lung,brain and lymph node metastasis of SC located in the *** is evident that cis-platinum combined with fluorouracil,vinorelbine combined with anlotinib hydrochloride may be an effective therapeutic regimen in advanced ***,brain metastatic lesions should receive early radiotherapy.

关键词： Extraocular sebaceous carcinoma Chemotherapy Targeted therapy Radiotherapy Case report

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Forecasting of COVID-19: spread with dynamic transmission rate

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Journal of Safety Science and Resilience 2020年第2期1卷 91-96页

作者： Yiping zeng Xiaojing Guo qing Deng Shengfeng Luo hui Zhang Institute of Public Safety Research Department of Engineering PhysicsTsinghua UniversityBeijing 100084China

The COVID-19 was firstly reported in Wuhan,Hubei province,and it was brought to all over China by people travelling for Chinese New *** pandemic coronavirus with its catastrophic effects is now a global *** of COVID-19 spread has attracted a great attention for public health ***,few re-searchers look into the relationship between dynamic transmission rate and preventable measures by *** this paper,the SEIR(Susceptible Exposed Infectious Recovered)model is employed to investigate the spread of *** epidemic spread is divided into two stages:before and after *** intervention,the transmission rate is assumed to be a constant since individual,community and government response has not taken into *** intervention,the transmission rate is reduced dramatically due to the societal actions or measures to reduce and prevent the spread of *** transmission rate is assumed to follow an exponential function,and the removal rate is assumed to follow a power exponent *** removal rate is increased with the evolution of the *** the real data,the model and parameters are *** transmission rate without measure is calculated to be 0.033 and 0.030 for Hubei and outside Hubei province,*** the model is established,the spread of COVID-19 in Hubei province,France and USA is *** results,USA performs the worst according to the dynamic *** model has provided a mathematical method to evaluate the effectiveness of the government response and can be used to forecast the spread of COVID-19 with better performance.

关键词： COVID-19 SEIR Emergency management Dynamic transmission rate Basic reproduction number

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Effect of Polyaniline as Hole-Acceptor and Energy-Acceptor on the Photoluminescence of CdSe

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Chemical Research in Chinese Universities 2007年第2期23卷 131-134页

作者： ZHUANG Hong LIU Jing-bo zeng qing-hui KONG Xiang-gui Colledge of Light Industry and Economics ＆ Management Jilin University Changchun 130062 P. R. China Key Laboratory of Excited State Process Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China

The results of interaction between CdSe quantum dots and polyaniline were reported. Polyaniline effectively decreases the emission of CdSe quantum dots, and the CdSe luminescence lifetime is decreased by the addition of polyaniline. The mechanism of the emission observed in CdSe is assumed to result from the energy transfer and from the combination of surface-trapped electrons and holes energy is transferred from CdSe to polyaniline, and polyaniline occupies the hole sites.

关键词： CdSe Polyaniline Hole-acceptor Energy-acceptor

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