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Shadow thermodynamics of AdS black hole with the nonlinear electrodynamics term

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Chinese Physics B 2023年第8期32卷 201-208页

作者：郑何斌牟平辉陈芸仙李国平 School of Physics and Astronomy China West Normal UniversityNanchong 637000China

We creatively employ the shadow radius to study the thermodynamics of a charged Ad S black hole with a nonlinear electrodynamics(NLED)***,the connection between the shadow radius and event horizon is constructed with the aid of the geodesic *** turns out that the black hole shadow radius shows a positive correlation as a function of the event horizon *** in the shadow context,we find that the black hole temperature and heat capacity can be presented by the shadow *** analysis shows that the shadow radius can work similarly to the event horizon in revealing black hole phase transition *** this sense,we construct the thermal profile of the charged Ad S black hole with inclusion of the NLED *** the P

关键词： AdS black hole the nonlinear electrodynamics shadow thermodynamics

The shadow and observation appearance of black hole surrounded by the dust field in Rastall theory

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Chinese Physics B 2023年第1期32卷 196-206页

作者：朱轩然陈芸仙牟平辉何柯腱 Chongqing College of Mobile Communication Chongqing 401520China Physics and Space College China West Normal UniversityNanchong 637000China Department of Physics and Chongqing Key Laboratory for Strongly Coupled Physics Chongqing UniversityChongqing 401331China

In the context of Rastall gravity,the shadow and observation intensity casted by the new Kiselev-like black hole with dust field have been numerically *** this system,the Rastall parameter and surrounding dust field structure parameter have considerable consequences on the geometric structure of *** the photon trajectories near the black hole,we investigate the variation of the radii of photon sphere,event horizon and black hole shadow under the different related ***,taking into account two different spherically symmetric accretion models as the only background light source,we also studied the observed luminosity and intensity of black *** the both spherical accretions background,the results show that the decrease or increase of the observed luminosity depends on the value range of relevant parameters,and the promotion effect is far less obvious than the attenuation effect on the observed *** can find that the inner shadow region and outer bright region of the black hole wrapped by infalling accretion are significantly darker than those of the static model,which is closely related to the Doppler *** addition,the size of the shadow and the position of the photon sphere are always the same in the two accretion models,which means that the black hole shadow depend only on the geometry of spacetime,while the observation luminosity is affected by the form of accretion material and the related spacetime structure.

关键词： Rastall gravity black hole

Triple points and phase transitions of D-dimensional dyonic Ad S black holes with quasitopological electromagnetism in Einstein–Gauss–Bonnet gravity

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Chinese Physics B 2024年第6期33卷 272-287页

作者：牟平辉蒋青权何柯腱李国平 School of Physics and Astronomy China West Normal UniversityNanchong 637000China College of Physics Chongqing UniversityChongqing 401331China

By considering the negative cosmological constant Λ as a thermodynamic pressure, we study the thermodynamics and phase transitions of the D-dimensional dyonic Ad S black holes(BHs) with quasitopological electromagnetism in Einstein–Gauss–Bonnet(EGB) gravity. The results indicate that the small/large BH phase transition that is similar to the van der Waals(vdW) liquid/gas phase transition always exists for any spacetime dimensions. Interestingly, we then find that this BH system exhibits a more complex phase structure in 6-dimensional case that is missed in other ***, it shows for D = 6 that we observed the small/intermediate/large BH phase transitions in a specific parameter region with the triple point naturally appeared. Moreover, when the magnetic charge turned off, we still observed the small/intermediate/large BH phase transitions and triple point only in 6-dimensional spacetime, which is consistent with the previous results. However, for the dyonic Ad S BHs with quasitopological electromagnetism in Einstein–Born–Infeld(EBI) gravity, the novel phase structure composed of two separate coexistence curves observed by Li et al. [Phys. Rev. D105 104048(2022)] disappeared in EGB gravity. This implies that this novel phase structure is closely related to gravity theories, and seems to have nothing to do with the effect of quasitopological electromagnetism. In addition, it is also true that the critical exponents calculated near the critical points possess identical values as mean field theory. Finally, we conclude that these findings shall provide some deep insights into the intriguing thermodynamic properties of the dyonic Ad S BHs with quasitopological electromagnetism in EGB gravity.

关键词： AdS black hole phase transition triple point

Artificial intelligence advances drug delivery system and its clinical transition

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Science Bulletin 2025年第3期70卷 305-308页

作者： hui Wang Xiao-Yan You Guo-ping Zhao Master Lab for Innovative Application of Nature Products National Center of Technology Innovation for Synthetic BiologyTianjin Institute of Industrial BiotechnologyChinese Academy of Sciences(CAS)Tianjin 300308China Henan Engineering Research Center of Food Microbiology College of Food and BioengineeringHenan University of Science and TechnologyLuoyang 471023China Haihe Laboratory of Synthetic Biology Tianjin 300308China CAS-Key Laboratory of Synthetic Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Since November 2022,ChatGPT,an artificial intelligence(AI)chatbot,has rapidly captured global attention for its detailed responses and articulated answers across a broad spectrum of knowledge domains[1],[2].All industries will reorient around it,prompting a reevaluation of how this technology could further promote scientifical research and its clinical applications.

关键词： system transition spectrum

Super-high bed sintering for iron ores:variation and optimization of bed resistance

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Journal of Iron and Steel Research International 2025年第1期32卷 40-51页

作者： Liang-ping Xu Lin Xiong hui-bo Liu Xi-duan Yang Ai-xiang Mao Pei-dun Chen Guang-hui Li School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Central Research Institute Baosteel Group Co.Ltd.Shanghai201900China Manufacturing Management Department Guangdong Zhongnan Iron and Steel Co.Ltd.Shaoguan512123GuangdongChina Technology and Development Center Shandong Taishan Iron and Steel Group Co.Ltd.Jinan271100ShandongChina

As the bed depth increases,sintering yield increases,but the productivity *** reveal the reasons for the decrease in productivity and explore targeted solutions,the bed resistance of mixtures,wet zone,and combustion zone was analyzed in the *** results showed that the decreased porosity of mixture resulted in the increased bed resistance by 160.56%when the bed depth increased from 600 to 1000 *** improving porosity of 1%by adding loosening bars with optimized size and distribution,the bed resistance decreased,and the productivity increased by 5%.The increase in bed depth increased the thickness of the wet zone from 120 to 680 mm and the resistance from 1.56 to 8.83 *** using a three-stage intensive mixer and pre-adding water for granulation,the moisture of mixture was reduced by 0.6%,and the sintering productivity increased by 4%.Besides,the high bed resistance is mainly caused by the increase in the thickness of the combustion zone from 31.9 to 132.7 mm,and the bed resistance increased from 0.70 to 5.62 *** bed resistance of the combustion zone at 900 mm was increased by 90.51%compared to 700 *** optimization of the distribution of coke breeze,the thickness of combustion zone at the lower layer decreased from 132.7 to 106.84 mm and permeability improved significantly.

关键词： Super-high bed sintering Bed resistance Permeability Productivity Wet zone Combustion zone

Effect of graphene addition on activation and kinetic properties of La-Mg-Ni-based hydrogen storage alloys

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Journal of Iron and Steel Research International 2025年第1期32卷 227-238页

作者： Dian-chen Feng Chun-ling Zheng Zhi-yuan Zhao Dong-sheng Zhou hui-ping Ren Yang-huan Zhang School of Materials and Metallurgy Inner Mongolia University of Science and TechnologyBaotou014010Inner MongoliaChina Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi-Metal Resources Inner Mongolia University of Science and TechnologyBaotou014010Inner MongoliaChina Department of Functional Material Research China Iron and Steel Research Institute GroupBeijing100081China

The La_(1.7)Pr_(0.3)Mg_(16)Ni hydrogen storage alloy was prepared by medium-frequency induction melting,and then the composite hydrogen storage alloy powder of La_(1.7)Pr_(0.3)Mg_(16)Ni+x wt.%(x=0,2,4,and 6)graphene was prepared by ball milling for 10 *** effect of the addition of graphene on the activation and hydrogen de/absorption properties of La_(1.7)Pr_(0.3)Mg_(16)Ni alloy was *** result demonstrated that these composite alloys were composed of La_(2)Mg_(17),La_(2)Ni_(3),and Mg_(2)Ni *** saturated hydrogen absorption,it was composed of LaH_(3),Mg_(2)NiH_(4),and MgH_(2)phases,while during the dehydrogenation process,it was composed of LaH_(3),Mg,and Mg_(2)Ni *** addition of graphene can help get a more homogeneous granule after ball milling and accelerate the first activation of dehydrogenation/hydrogen *** hydrogen release activation energy of the alloys first decreases and then increases as the graphene content increases from x=0 wt.%to x=6 wt.%.The minimum activation energy of the composite hydrogen storage alloy is 51.22 kJ mol^(-1) when x=4 wt.%.

关键词： La-Mg-Ni alloy Graphene Mechanical ball milling Activation property Dynamic performance

Accelerating homogenization kinetics and enhancing hot-workability of as-cast nickel-based superalloy via prior hot-deformation

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Journal of Iron and Steel Research International 2025年第1期32卷 215-226页

作者： Jia-jun Chen Yang Zhou Hao-ran Han Xian-guang Zhang Goro Miyamoto ping-mei Tang Dong-ping Xiao Jian-hui Fu Peng Shi Yi-wu Pei Jian Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Chengdu Advanced Metal Materials Industrial Technology Institute Co. Ltd.Chengdu 610300SichuanChina Institute for Materials Research Tohoku UniversitySendai 980-8577Aoba-KuJapan

Enhancing homogenization efficiency and hot-workability is the key issue for wrought superalloys in the industry.A novel approach for simultaneous accelerating the homogenization kinetics and improving hot-workability via a simple way of prior hot-deformation was proposed,which was not widely accepted for wrought *** homogenization efficiency is increased by 40%-70%via performing 10%-20%prior *** theoretical and experimental analyses revealed that the increment in homogenization efficiency is mainly attributed to the decrease in interdendritic-segregation spacing,and thus the necessary diffusion distance,rather than that of *** addition,dynamic and static recrystallizations occurred during the prior hot-deformation and diffusion-annealing processes,and the grains were significantly refined even after the ***,the size of the precipitates was refined as *** enhanced the hot-workability of the homogenized ingot for the subsequent cogging process.

关键词： Nickel-based superalloy Homogenization kinetics Prior hot-deformation Grain size Hot workability

Pharmacological Mechanism of Chinese Medicine in Systemic Lupus Erythematosus:A Narrative Review

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Chinese Journal of Integrative Medicine 2025年第2期31卷 157-169页

作者： ZHU Bo-yu LIU Zhi-chao ZHAO Zhen-xi HUANG hui-ping ZHANG Na XIA Jia CHEN Wei-wei Department of Rheumatology Shanghai Municipal Hospital of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghai(200071)China

Systemic lupus erythematosus(SLE)is a chronic autoimmune disorder affecting multiple systems,characterized by the development of harmful autoantibodies and immune complexes that lead to damage in organs and *** medicine(CM)plays a role in mitigating complications,enhancing treatment effectiveness,and reducing toxicity of concurrent medications,and ensuring a safe ***,CM mainly solves the disease comprehensively through multi-target and multi-channel regulation process,therefore,its treatment mechanism is often complicated,involving many molecular *** review introduces the research progress of pathogenesis of SLE from the aspects of genetics,epigenetics,innate immunity and acquired immunity,and then discusses the molecular mechanism and target of single Chinese herbal medicine and prescription that are commonly used and effective in clinic to treat SLE.

关键词： systemic lupus erythematosus Chinese medicine natural extracts treatment review

From surgery to recovery:Measuring success through quality of life and functional improvements after cardiac surgery

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World Journal of Cardiology 2025年第2期17卷 1-8页

作者： Peng Li hui-ping Zhang Department of Geriatric Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100730China Department of Cardiology Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100730China

Coronary artery disease and aortic valve stenosis are highly prevalent cardio-vascular diseases worldwide,resulting in substantial morbidity and *** interventions,such as coronary artery bypass grafting and surgical aortic valve replacement,offer significant therapeutic benefits,including enhanced postoperative quality of life(QoL)and functional capacity,which are key indi-cators of surgical *** editorial reviews recent studies on postoperative QoL and functional outcomes in patients undergoing cardiac *** such as preoperative health,age,intensive care unit stay duration,surgical risk,and perioperative complications could influence these *** rehabil-itation is pivotal in enhancing patient function,reducing frailty and improving long-term QoL.

关键词： Quality of Life Functional capacity Cardiac surgery Coronary artery bypass grafting Surgical aortic valve replacement Cardiac rehabilitation