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Numerical investigation on thermomechanical behavior of alumina–calcium hexaluminate refractories for purging plug

Journal of Iron and Steel Research International 2024年第2期31卷 389-400页

作者： Li-ping Pan Ya-wei Li Fang-guan Tan yi-chen Chen Yang-fan Xu zhu He Bao-kuan Li The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina National-Provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology Wuhan University of Science and TechnologyWuhan430081HubeiChina

Alumina–spinel refractories used in slit-type purging plugs are susceptible to cross-sectional damage,resulting in a serious mismatch between their service life and that of ***–calcium hexaluminate refractories have gradually become the new trend in purging plug materials with the development of refining *** thermomechanical damage of slit-type purging plugs with alumina–calcium hexaluminate refractory was investigated by the thermo-solid coupling *** with the polynomial fitting and design of experiments methods,the influence of thermophysical parameters on temperature and thermal stress of alumina–calcium hexaluminate refractories for purging plugs was systematically *** results show that the maximum thermal stress of the purging plugs appears during the stages of steel transporting and stirring,and the vulnerable parts are located above Y=0.323 *** thermal conductivity and the coefficient of thermal expansion of the material are the most sensitive parameters to the temperature and thermal stress inside the structure,*** addition of more calcium hexaluminate can relieve the stress concentration and large deformation around the ***,when the content of calcium hexaluminate is 47 wt.%and in the form of aggregate-binder,the temperature and thermal stress distribution inside the refractory are optimal,which can effectively improve the service life of the slit-type purging plug.

关键词： Purging plug Thermomechanical damage Refractory Design of experiments method Stress

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High-rate CH_(4)-to-C_(2)H_(6) photoconversion enabled by Au/ZnO porous nanosheets under oxygen-free system

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Science China Chemistry 2024年第3期67卷 869-875页

作者： Kai Zheng Xiaojing Zhang Jun Hu Chengbin Xu Juncheng zhu Jing Li Mingyu Wu Shan zhu Li Li Shumin Wang Yumei Lv Xin He Ming Zuo Chengyuan Liu Yang Pan Junfa zhu Yongfu Sun yi Xie Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei 230026China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China State Grid Anhui Electric Power Research Institute Hefei 230601China

Photocatalytic CH_(4) coupling into high-valued C_(2)H_(6) is highly attractive,whereas the photosynthetic rate,especially under oxygen-free system,is still ***,we designed the negatively charged metal supported on metal oxide nanosheets to activate the inert C-H bond in CH_(4)and hence accelerate CH_(4) coupling *** an example,the synthetic Au/ZnO porous nanosheets exhibit the C_(2)H_(6) photosynthetic rate of 1,121.6μmol g^(-1)_(cat)h^(-1)and the CH_(4) conversion rate of 2,374.6μmol g^(-1)_(cat)h^(-1) under oxygen-free system,2 orders of magnitude higher than those of previously reported *** virtue of several in situ spectroscopic techniques,it is established that the generated Au^(δ-)and O^-species together polarized the C-H bond,while the Au^(δ-)and O^-species jointly stabilized the CH_(3) intermediates,which favored the coupling of CH_(3) intermediate to photosynthesize C_(2)H_(6) instead of overoxidation into CO_(x).Thus,the design of dual active species is beneficial for achieving high-efficient CH_(4)-to-C_(2)H_(6) photoconversion.

关键词： dual surface-active sites selective methane coupling ethane room temperature

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Efficacy of ginseng-based Renshenguben oral solution for cancer-related fatigue among patients with advanced-stage hepatocellular carcinoma:A prospective multicenter cohort study

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Hepatobiliary & Pancreatic Diseases International 2024年第3期23卷 249-256页

作者： Ming-Da Wang Chen Yuan Ke-Chun Wang Nan-Ya Wang ying-Jian Liang Hong zhu Xiang-Min Tong tian Yang Department of Hepatobiliary and Pancreatic Surgery General Surgery CenterFirst Hospital of Jilin UniversityChangchun 130021China Department of Hepatobiliary Surgery Eastern Hepatobiliary Surgery HospitalSecond Military Medical University(Naval Medical University)Shanghai 200438China Department of Clinical Laboratory Laboratory Medicine CenterZhejiang Provincial People’s HospitalHangzhou Medical CollegeHangzhou 310000China Department of Hepatobiliary Surgery First Affiliated Hospital of Harbin Medical UniversityHarbin 150007China Department of Medical Oncology First Affiliated Hospital of Soochow UniversitySuzhou 215006China fDepartment of Central Laboratory Affiliated Hangzhou First People’s HospitalWestlake University School of MedicineHangzhou 310006China

Background:Cancer-related fatigue(CRF)is a common and debilitating symptom experienced by patients with advanced-stage cancer,especially those undergoing antitumor *** study aimed to evaluate the efficacy and safety of Renshenguben(RSGB)oral solution,a ginseng-based traditional Chinese medicine,in alleviating CRF in patients with advanced hepatocellular carcinoma(HCC)receiving antitumor ***:In this prospective,open-label,controlled,multicenter study,patients with advanced HCC at BCLC stage C and a brief fatigue inventory(BFI)score of≥4 were *** were assigned to the RSGB group(RSGB,10 mL twice daily)or the control group(with supportive care).Primary and secondary endpoints were the change in multidimensional fatigue inventory(MFI)score,and BFI and functional assessment of cancer therapy-hepatobiliary(FACT-Hep)scores at weeks 4 and 8 after *** events(AEs)and toxicities were ***:A total of 409 participants were enrolled,with 206 assigned to the RSGB *** week 4,there was a trend towards improvement,but the differences were not statistically *** week 8,the RSGB group exhibited a significantly lower MFI score(P<0.05)compared to the control group,indicating improved fatigue ***,the RSGB group showed significantly greater decrease in BFI and FACT-Hep scores at week 8(P<0.05).Subgroup analyses among patients receiving various antitumor treatments showed similar *** linear regression analyses revealed that the RSGB group experienced a significantly substantial decrease in MFI,BFI,and FACT-Hep scores at week *** serious drug-related AEs or toxicities were ***:RSGB oral solution effectively reduced CRF in patients with advanced HCC undergoing antitumor therapy over an eight-week period,with no discernible *** findings support the potential of RSGB oral solution as an adjunctive treatment for managing CRF in this patient population.

关键词： Cancer-related fatigue Hepatocellular carcinoma Renshenguben oral solution Efficacy Safety Ginseng

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Chemoselective and Living/Controlled Polymerization of Alkenyl Methacrylates by the Phosphonium Ylide/Organoaluminum Lewis Pairs

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Chinese Journal of Polymer Science 2024年第2期42卷 159-167,I0005页

作者： Zhi-Kang Chen Wu-Chao Zhao yi-Ling Zhao Cong-Lei Liu Liu-yin Jiang Yue-Tao Zhang Hong-Ping zhu State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun130012China

Chemoselective,living/controlled polymerizations of allyl methacrylate(AMA) and vinyl methacrylate(VMA) with/without methyl methacrylate(MMA) by using the phosphonium ylide/organoaluminum based Lewis pairs(LPs) have been *** P-ylide-2/AIMe(BHT)_(2)(Pylide-2=Ph_(3)P=CHMe and BHT=2,6-iBu_(2)-4-MeC_(6)H_(2)O) was demonstrated to be superior by which homopolymers PAMAs(M_(n)=27.6-111.5kg/mol and ■=1.14-1.25) and PVMAs(M_(n)=28.4-78.4 kg/mol and ■=1.12-1.18) and block copolymers PMMA-b-PAMA,PAMA-b-PVMA,PAMA-bPMMA,PMMA-b-PAMA-b-PMMA,PAMA-b-PMMA-b-PAMA,and PAMA-b-PVMA-b-PAMA were *** the polymerizations,all of the monomers were reacted by the conjugated ester vinyl groups leaving intactly the nonconjugated acryloxy *** pendant acryloxy groups attached to the main chain enable further to post-functionalization by the AIBN-induced radical "thiol-ene" reaction using PhCH_(2)*** thiolether side group-containing polymers PAMA-SCH_(2)Ph and PAMA-SCH_(2)Ph-b-PMMA-b-PAMA-SCH_(2)Ph were thus prepared.

关键词： Phosphonium ylide Alkenyl methacrylate Chemoselectivity Living/controlled polymerization Post-functionalization

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Development of a stable attenuated double-mutant of tobacco mosaic virus for cross-protection

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Journal of Integrative Agriculture 2024年第7期23卷 2318-2331页

作者： Xiaojie Xu Shaoyan Jiang Chunju Liu Xujie Sun Qing zhu Xiuzhai Chen Pengchao Jiang Fenglong Wang Yanping tian Xiangdong Li The Engineering Research Institute of Agriculture and Forestry Ludong UniversityYantai 264025China Laboratory of Plant Virology Department of Plant PathologyCollege of Plant ProtectionShandong Agricultural UniversityTai’an 271018China Weifang Tobacco Corporation Weifang 261031China Linyi Tobacco Corporation Linyi 276000China Tobacco Research Institute Chinese Academy of Agricultural SciencesQingdao 266101China

Tobacco(Nicotiana tabacum)and tomato(Solanum lycopersicum)are two major economic crops in *** mosaic virus(TMV;genus Tobamovirus)is the most prevalent virus infecting both ***,some widely cultivated tobacco and tomato cultivars are susceptible to TMV and there is no effective strategy to control this ***-protection can be a safe and environmentally friendly strategy to prevent viral ***,stable attenuated TMV mutants are *** this study,we found that the substitutions in the replicase p126,arginine at position 196(R^(196))with aspartic acid(D),glutamic acid at position 614(E^(614))with glycine(G),serine at position 643(S^(643))with phenylalanine(F),or D at position 730(D^(730))with S,significantly reduced the virulence and replication of ***,only the mutation of S^(643) to F reduced the RNA silencing suppression activity of TMV p126.A double-mutant TMV-E614G-S643F induced no visible symptom and was genetically stable through six successive passages in tobacco ***,our results showed that TMV-E614G-S643F double-mutant could provide effective protection against the wild-type TMV infection in tobacco and tomato *** study reports a promising mild mutant for cross-protection to control TMV in tobacco and tomato plants.

关键词： cross-protection double-mutant p126 tobacco mosaic virus virulence

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Remote entangling gate between a quantum dot spin and a transmon qubit mediated by microwave photons

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Chinese Physics B 2024年第2期33卷 52-59页

作者：朱行宇朱乐天涂涛李传锋 Key Laboratory of Quantum Information Chinese Academy of SciencesUniversity of Science and Technology of ChinaHefei 230026China School of Mechanical and Electronic Engineering Suzhou UniversitySuzhou 234000China Hefei National Laboratory University of Science and Technology of ChinaChinese Academy of SciencesHefei 230088China

Spin qubits and superconducting qubits are promising candidates for realizing solid-state quantum information *** a hybrid architecture that combines the advantages of different qubits on the same chip is a highly desirable but challenging *** we propose a hybrid architecture that utilizes a high-impedance SQUID array resonator as a quantum bus,thereby coherently coupling different solid-state *** employ a resonant exchange spin qubit hosted in a triple quantum dot and a superconducting transmon *** this hybrid system is highly tunable,it can operate in a dispersive regime,where the interaction between the different qubits is mediated by virtual *** utilizing such interactions,entangling gate operations between different qubits can be realized in a short time of 30 ns with a fidelity of up to 96.5%under realistic parameter *** utilizing this interaction,remote entangled state between different qubits can be prepared and is robust to perturbations of various *** results pave the way for exploring efficient fault-tolerant quantum computation on hybrid quantum architecture platforms.

关键词： hybrid quantum architectures circuit quantum electrodynamics entangling gate

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Targeted G-to-T base editing for generation of novel herbicide-resistance gene alleles in rice

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Journal of Integrative Plant Biology 2024年第6期66卷 1048-1051页

作者： yifu tian Xinbo Li Jiyong Xie Zai Zheng Rundong Shen Xuesong Cao Mugui Wang Chao Dong Jian-Kang zhu Ministry of Agriculture and Rural Affairs Key Laboratory of Gene Editing Technologies(Hainan) Institute of Crop Sciences and National Nanfan Research InstituteChinese Academy of Agricultural SciencesSanya 572024China Hainan Seed Industry Laboratory Sanya 572024China Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesThe Chinese Academy of SciencesShanghai 201602China University of Chinese Academy of Sciences Beijing 100049China Institute of Advanced Biotechnology and School of MedicineSouthern University of Science and TechnologyShenzhen 518055China

Deaminase-based cytosine base editors(CBEs)and adenine base editors(ABEs)induce C-to-T and A-to-G transitions,respectively,enabling single-nucleotide variants(SNVs)in plants for research and crop enhancement(Li et al.,2023a).The C-to-G base editors(CGBEs)and A-to-Y base editors(AYBEs),developed by incorporating glycosylases with CBEs and ABEs,expand the repertoire of base editing products,allowing C-to-T/G and A-to-T/G transversions in plants(Li et al.,2023b,2023c;Sretenovic et a.,2021).

关键词： base alleles CBE

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Peroxisome proliferator-activated receptor gamma coactivator-1(PGC-1)family in physiological and pathophysiological process and diseases

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1249-1292页

作者： Lu Qian Yanli zhu Chao Deng Zhenxing Liang Junmin Chen ying Chen Xue Wang Yanqing Liu Ye tian Yang Yang Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No.3 HospitalThe Affiliated Hospital of Northwest UniversityNorthwest UniversityXi'an 710021China Xi'an Key Laboratory of Innovative Drug Research for Heart Failure Faculty of Life Sciences and MedicineNorthwest University229 Taibai North RoadXi'an 710069China Department of Cardiovascular Surgery The First Affiliated Hospital of Xi'an Jiaotong University277 Yanta West RoadXi'an 710061China Department of Cardiothoracic Surgery The First Affiliated Hospital of Zhengzhou University1 Jianshe EastZhengzhou 450052China Department of Hematology The First Affiliated Hospital of Xi'an JiaotongUniversity277 Yanta West RoadXi'an 710061China

Peroxisome proliferator-activated receptor gamma coactivator-1(PGC-1)family(PGC-1s),consisting of three members encompassing PGC-1a,PGC-1β,and PGC-1-related coactivator(PRC),was discovered more than a quarter-century ***-1s are essential coordinators of many vital cellular events,including mitochondrial functions,oxidative stress,endoplasmic reticulum homeostasis,and *** evidence has shown that PGC-1s are implicated in many diseases,such as cancers,cardiac diseases and cardiovascular diseases,neurological disorders,kidney diseases,motor system diseases,and metabolic *** the upstream modulators and co-activated partners of PGC-1s and identifying critical biological events modulated by downstream effectors of PGC-1s contribute to the presentation of the elaborate network of ***,discussing the correlation between PGC-1s and diseases as well as summarizing the therapy targeting PGC-1s helps make individualized and precise intervention *** this review,we summarize basic knowledge regarding the PGC-1s family as well as the molecular regulatory network,discuss the physio-pathological roles of PGc-1s in human diseases,review the application of PGC-1s,including the diagnostic and prognostic value of PGC-1s and several therapies in pre-clinical studies,and suggest several directions for future *** review presents the immense potential of targeting PGC-1s in the treatment of diseases and hopefully facilitates the promotion of PGC-1s as new therapeutic targets.

关键词： diseases life precise

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Revealing the Structure-Property Difference of Natural Rubber Prepared by Different Methods: Protein and Gel Content are Key Factors

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Chinese Journal of Polymer Science 2024年第4期42卷 457-467页

作者： Shao-Qi Huang Jun-Qi Zhang Yong zhu Ling-Min Kong Lu-Sheng Liao Fu-Quan Zhang Zheng-tian Xie Jin-Rong Wu State Key Laboratory of Polymer Materials Engineering College of Polymer Science and EngineeringSichuan UniversityChengdu610065China Hainan Provincial Key Laboratory of Natural Rubber Processing Agricultural Products Processing Research Institute of Chinese Academy of Tropical Agricultural SciencesZhanjiang524001China

Natural rubber (NR) is widely used in various fields including aerospace, military industry and transportation due to its superior elasticity and comprehensive mechanical properties. Nonetheless, the commercial NR prepared by different methods usually exhibits different mechanical properties, primarily due to variations in processing conditions during the conversion from latex to bulk rubber material. Consequently, this poses challenges in scientific research and industrial production of NR. In order to assess the properties of various commercially available NR and identify key structural and compositional components, this study systematically compares and analyzes four representative NR raw materials: air dried sheet (ADS), ribbed smoked sheets (RSS), constant viscidity NR (CV), and whole field latex rubber (WF). The investigation focuses on evaluating their static mechanical behavior, SIC behavior, wear resistance, and fatigue resistance. The findings indicate that protein and gel content exhibit a crucial influence on the NR properties. These constituents contribute to the formation of a high-crosslinking density region, generating a heterogeneous network structure within the rubber. This structure amplifies strains during deformation, leading to earlier and stronger strain-induced crystallization (SIC). Among the four commercial NR brands, RSS demonstrates superior overall mechanical and dynamic properties owing to its high protein and gel content. This study serves as a valuable reference for comprehending the differences in properties among various commercial NR, thereby offering guidance for the actual processing and selection of NR.

关键词： Natural rubber Processingmethod Protein Gel content Property

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Health risk assessment of heavy metal pollution in groundwater of a karst basin,SW China

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Journal of Groundwater Science and Engineering 2024年第1期12卷 49-61页

作者： Fu-ning Lan yi Zhao Jun Li Xiu-qun zhu Karst Ecosystem National Observation and Research StationPingguo 531406GuangxiChina Institute of Karst Geology International Research Centre on KarstUnder the Auspices of UNESCOGuangxi Karst Resources and Environment Research Center of Engineering TechnologyChinese Academy of Geological SciencesKarst Dynamics LaboratoryMNR and GuangxiGuilin 541004China Hebei Key Laboratory of Water Quality Engineering and Comprehensive Utilization of Water Resources Hebei University of ArchitectureZhangjiakou 075000Hebei ProvinceChina College of Hydrology and Water Resources Hohai UniversityNanjing 210098China

To investigate the presence of metal elements and assess their health risk for the populace in the Nandong Underground River Basin(NURB),we conducted an analysis of eleven common heavy metals in the water body.A Health risk assessment(HRA)model was employed to analyze 84 water samples from the *** detection results revealed the following order of heavy metals concentrations:Fe>Al>Mn>Zn>As>Cd>Pb>Cr>Ni>Cu>*** analysis indicated a certain similarity in material source and migration transformation among these eleven metal *** study identified that the health risks for local residents exposed to metal elements in the water of NURB primarily stem from carcinogenic risk(10^(−6)–10^(−4)a^(−1))through the drinking water ***,the health risk of heavy metal exposure for children through drinking water was notably higher than for *** maximum health risks of Cr in both underground and surface water exceeded the recommendation standard(5.0×10^(−5)a^(−1))from ICRP,surpassing the values recommended by the Swedish Environmental Protection Agency,the Dutch Ministry of Construction and Environment and the British Royal Society(5.0×10^(−6)a^(−1)).The results of the health risk assessment indicate that Cr in the water of NURB is the primary source of carcinogenic risk for local residents,followed by Cd and ***,it is imperative to control these three carcinogenic metals when the water was used as drinking water resource.

关键词： Water Pollution Correlation Analysis Toxicity of Heavy Metal Elements Underground River Basin Carcinogenicity Potential

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