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Journal of Sport and Health Science 2024年第3期13卷 368-372页

作者： Weimo zhu Wenguang Geng Lingling Huang Xiong Qin Zezhao Chen hai Yan Yunnan Plateau Thermal Health Industry Innovation Research Institute Tengchong 679100China Department of Kinesiology&Community Health University of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Physical Education Nanjing Agricultural UniversityNanjing 210095China School of Sports Engineering Beijing Sport UniversityBeijing 100084China School of Strength and Conditioning Training Beijing Sport UniversityBeijing 100084China

Benefits of exercise for personal health,as well as preventing and treating chronic diseases,have been well documented during the past several decades.1 Exercise prescription is a specialized field that involves assessing an individual’s health status,fitness level,and specific goals to create a tailored exercise program based often on the FITT-VP principle.

关键词： prescription diseases assessing

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Detection of SARS-CoV-2 based on artificial intelligence-assisted smartphone:A review

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Chinese Chemical Letters 2024年第7期35卷 25-34页

作者： Yunxin Li Jinghui Zhang Jisen Chen Feng zhu Zhiqiang Liu Peng bao Wei Shen Sheng Tang School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Programme in Emerging Infectious Diseases Duke-NUS Medical SchoolSingapore 169857Singapore

In recent years,the application of smartphone in various fields has received great attention,and it has become a promising tool in virus detection,data processing and data *** the rapid spread of COVID-19 around the world,many traditional detection methods have been combined with smartphone to assist in the analysis and detection of the novel coronavirus(SARS-CoV-2),including electrochemistry,fluorescence and *** the gradual development of artificial intelligence(AI),the combination of AI and smartphone to analyze SARS-CoV-2 was also the focus of *** on the summary of the traditional methods combined with smartphone to detect SARS-CoV-2 virus,in addition to AI-based data processing,AI algorithms are also employed for SARS-CoV-2 detection *** review discussed both strategies and focused on the application of the *** combination of AI algorithm and smartphone to detect SARS-CoV-2 has high accuracy,which is more conducive to meeting the needs of portable *** addition,the classification of SARS-CoV-2 virus samples in biological fluids such as blood and saliva was also ***,this paper briefly discussed the limitations of using smartphone analysis to detect SARS-CoV-2,as well as the prospect and future development of virus *** conclusion,the detection methods based on smartphone and AI algorithms show great potential in the detection of SARS-CoV-2 and can be a valuable complement to traditional analysis methods.

关键词： COVID-19 SARS-CoV-2 virus Detection method Smartphone analysis Artificial intelligence

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Classification of anatomical morphology of cystic duct and its association with gallstone

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 307-317页

作者： Jia-hai zhu Song-Ling Zhao Qiang Kang Ya zhu Li-Xin Liu Hao Zou Department of Hepatobiliary Pancreatic Surgery The Second Affiliated Hospital of Kunming Medical UniversityKunming 650106Yunnan ProvinceChina Department of Hepatobiliary Surgery The Second Affiliated HospitalKunming Medical UniversityKunming 650106Yunnan ProvinceChina

BACKGROUND Gallstones are common lesions that often require surgical ***-scopic cholecystectomy is the treatment of choice for symptomatic ***,the anatomical morphology of the cystic duct(CD),needs to be accurately recognized,especially when anatomical variations occur in the CD,which is otherwise prone to bile duct ***,at present,there is no optimal classification system for CD morphology applicable in clinical practice,and the relationship between anatomical variations in CDs and gallstones remains to be *** To create a more comprehensive clinically applicable classification of the morphology of CD and to explore the correlations between anatomic variants of CD and *** A total of 300 patients were retrospectively enrolled from October 2021 to January *** patients were divided into two groups:The gallstone group and the nongallstone *** clinical data and anatomical data of the CD based on magnetic resonance cholangiopancreatography(MRCP)were collected and analyzed to propose a morphological classification system of the CD and to explore its relationship with *** analysis was performed using logistic regression analyses to identify the independent risk factors using variables that were significant in the univariate *** Of the 300 patients enrolled in this study,200(66.7%)had *** mean age was 48.10±13.30 years,142(47.3%)were male,and 158(52.7%)were female.A total of 55.7%of the patients had a body mass index(BMI)≥24 kg/*** on the MRCP,the CD anatomical typology is divided into four types:Type I:Linear,type II:n-shaped,type III:S-shaped,and type IV:*** analysis revealed differences between the gallstone and nongallstone groups in relation to sex,BMI,cholesterol,triglycerides,morphology of CD,site of CD insertion into the extrahepatic bile duct,length of CD,and angle between the common hepatic duct and *** to

关键词： Cystic duct Gallstone Classification Anatomy Magnetic resonance cholangiopancreatography Risk factor

Quasinormal modes and ringdown waveforms of a Frolov black hole

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Communications in Theoretical Physics 2024年第10期76卷 101-107页

作者： Zhijun Song Huajie Gong hai-Li Li Guoyang Fu Li-Gang zhu Jian-Pin Wu Center for Gravitation and Cosmology College of Physical Science and Technology Yangzhou University Basic Teaching Department Shenyang Institute of Engineering Department of Physics and Astronomy Shanghai Jiao Tong University

In this paper we investigate scalar perturbation over a Frolov black hole（BH）, which is a regular BH induced by the quantum gravity effect. The quasinormal frequencies of a scalar field always consistently reside in the lower half-plane, and the time-domain evolution of the field demonstrates a decaying behavior, with the late-time tail exhibiting a power-law pattern. These observations collectively suggest the stability of a Frolov BH against scalar ***, our study reveals that the quantum gravity effect leads to slower decay modes. For the case of the angular quantum number l = 0, the oscillation exhibits non-monotonic behavior with the quantum gravity parameter α0. However, once l ≥ 1, the angular quantum number surpasses the influence of the quantum gravity effect.

关键词： black hole Frolov black hole quantum gravity effects quasinormal modes

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

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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

Unconventional Fluorescent and Multi-responsive Polyethyleneimine with LCST and UCST Behavior:Synthesis,Characterization and Biological Applications

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Chinese Journal of Polymer Science 2024年第6期42卷 826-837页

作者： Feng-Ming Yin Li-Li Wu Shu-Sheng Li Xiao-Na Pan Xiao-Li zhu Xu-bao Jiang Xiang Zheng Kong College of Chemistry and Chemical Engineering University of JinanJinan250022China Shandong Institute for Product Quality Inspection Jinan250102China College of Chemical Engineering Tianjin UniversityTianjin300072China

Non-aromatic fluorescent and multi-responsive materials,exhibiting inherent fluorescence emission and controlled phase change,have garnered significant attention in recent ***,the underlying interaction between their fluorescent properties and phase transition remains *** this study,we synthesized a series of catalyst-free aza-Michael addition-based polyethyleneimine(RFPEI)materials by reacting polyethyleneimine(PEI)with N-isopropyl acrylamide(NIPAM).The resulting RFPEI was comprehensively characterized,and demonstrated dual-phase transition behavior(LCST and UCST)in water,which could be finely tuned by adjusting its composition or external factors such as ***,upon UV irradiation(365 nm),RFPEI exhibited strong fluorescence *** further investigated the effects of NIPAM grafting percentage to PEI,polymer concentration,and pH on the LCST/UCST and fluorescent properties of RFPEI aqueous ***,we showcased the great potential of RFPEI as a versatile tool for physiological cell imaging,trace detection,and controlled release of *** study presents a novel class of stimuli-responsive fluorescent materials with promising applications in the field of biomedicine.

关键词： Polyethyleneimine Multi-responsiveness Intrinsic fluorescence emission Cell imaging Controlled drug release

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Associations between Geriatric Nutrition Risk Index,bone mineral density and body composition in type 2 diabetes patients

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World Journal of Diabetes 2024年第3期15卷 403-417页

作者： Xiao-Xiao zhu Kai-Feng Yao hai-Yan Huang Li-Hua Wang Department of Pediatrics The Second Affiliated Hospital of Nantong UniversityFirst People’s Hospital of Nantong CityNantong 226001Jiangsu ProvinceChina Department of Nursing The Second Affiliated Hospital of Nantong UniversityFirst People’s Hospital of Nantong CityNantong 226001Jiangsu ProvinceChina Department of Endocrinology The Second Affiliated Hospital of Nantong UniversityFirst People’s Hospital of Nantong CityNantong 226001Jiangsu ProvinceChina

BACKGROUND Type 2 diabetes mellitus(T2DM),a fast-growing issue in public health,is one of the most common chronic metabolic disorders in older *** and sarcopenia are highly prevalent in T2DM patients and may result in fractures and *** people with T2DM,the association between nutrition,sarcopenia,and osteoporosis has rarely been *** To evaluate the connections among nutrition,bone mineral density(BMD)and body composition in patients with *** We enrolled 689 patients with T2DM for this cross-sectional *** patients underwent dual energy X-ray absorptiometry(DXA)examination and were categorized according to baseline Geriatric Nutritional Risk Index(GNRI)values calculated from serum albumin levels and body *** GNRI was used to evaluate nutritional status,and DXA was used to investigate BMD and body *** forward linear regression analysis was used to identify the factors associated with BMD and skeletal muscle mass *** Of the total patients,394 were men and 295 were *** with patients in tertile 1,those in tertile 3 who had a high GNRI tended to be younger and had lower HbA1c,higher BMD at all bone sites,and higher appendicular skeletal muscle index(ASMI).These important trends persisted even when the patients were divided into younger and older *** GNRI was positively related to ASMI(men:r=0.644,P<0.001;women:r=0.649,P<0.001),total body fat(men:r=0.453,P<0.001;women:r=0.557,P<0.001),BMD at all bone sites,lumbar spine(L1-L4)BMD(men:r=0.110,P=0.029;women:r=0.256,P<0.001),FN-BMD(men:r=0.293,P<0.001;women:r=0.273,P<0.001),and hip BMD(men:r=0.358,P<0.001;women:r=0.377,P<0.001).After adjustment for other clinical parameters,the GNRI was still significantly associated with BMD at the lumbar spine and femoral ***,a low lean mass index and higherβ-collagen special sequence were associated with low BMD at all bone *** was negatively correlated with

关键词： Geriatric Nutrition Risk Index Bone mineral density Skeletal muscle mass Type 2 diabetes

Novel Soft Magnetic Co-Based Ternary Co-Er-B Bulk Metallic Glasses

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1633-1642页

作者： Jie Lu Yanhui Li Shuang Ma Wanping Li Feng bao Zhengwang zhu Qiaoshi Zeng haifeng Zhang Man Yao Wei Zhang Key Laboratory of Materials Modification By Laser Ionand Electron Beams(Ministry of Education)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China School of Metallurgy Northeastern UniversityShenyang110819China Center for High Pressure Science and Technology Advanced Research(HPSTAR) PudongShanghai201203China

In this work,a series of Co-based ternary Co-Er-B bulk metallic glasses(BMGs)with excellent soft magnetic properties and high strength were developed,and the local atomic structure of a typical Co_(71.5)Er_(3.5)B_(25) metallic glass was studied through in situ high-energy synchrotron X-ray diffraction and ab initio molecular dynamics *** results reveal that the BMG samples can be obtained in a composition region of Co_(68.5-71.5)Er_(3.5-4)B_(25-27.5) by a conventional copper-mold casting *** Co-Er-B metallic glasses possess stronger atomic bond strengths and denser local atomic packing structure composed of a higher fraction of icosahedral-like clusters but fewer deformed body-centered cubic and crystal-like polyhedrons,and they exhibit slower atomic diffusion behaviors during solidification,as compared to Co-Y-B *** enhancement in structural stability and the retardation of atomic-ordered diffusion lead to the better glass-forming ability of the Co-Er-B *** smaller magnetic anisotropy energy in the Co-Er-B metallic glasses results in a lower coercivity of less than 1.3 A/*** Co-Er-B BMGs exhibit high-yield strength of 3560-3969 MPa along with distinct plasticity of around 0.50%.

关键词： Co-based bulk metallic glass Glass-forming ability Soft magnetic property Ab initio molecular dynamics simulation Local atomic structure

Cooperative enhancement of mechanical and tribological properties through tailoring TiN transition interface in boron nitride nanosheets reinforced copper composites

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Rare Metals 2024年第10期43卷 5202-5215页

作者： Zhong-Hua Li Liang Liu Xin You Jian-Hong Yi Rui bao Ming-Yi zhu Song Lu Jun-Jun Pai Faculty of Materials Science and Engineering Kunming University of Science and Technology Key Laboratory of Advanced Materials of Yunnan Province Kunming University of Science and Technology

Strengthening interface bonding between boron nitride nanosheets(BNNS) and copper matrix is an essential prerequisite for exploiting a new generation of copper matrix composites(CMCs) with high strength and wear resistance. Herein, BNNS/Cu composites were fabricated by the powder metallurgy route, matrix-alloying(adding 1.0 wt% Ti) strategy was adopted to improve the interfacial wettability and strengthen interface adhesion. A typical "sandwich"-like multiply interface structure involving TiN transition layers, BNNS and Cu matrix had been well constructed through the rational heat treatment(900℃for 120 min). Additionally, nano-sized TiB whisker was in situ formed in the vicinity of the interface, it had linked the BNNS-Cu-TiN multiply interface, which played a role of "threading the needle" and significantly strengthened the multi-interfaces bonding. This specific interface structure was finely characterized, and the formation mechanism of solid-state interfacial reaction feature was proposed. The results demonstrated that the ultimate tensile strength(UTS) of BNNS/Cu-(Ti)-900℃ increased from 248 to 530 MPa(increased by 114%), and the coefficient of friction(COF) decreased from 0.51 to 0.28 than pure Cu. This work highlights the importance of interface configuration design, which contributes to the development of CMCs with prominent comprehensive properties.

关键词： Boron nitride nanosheets Copper matrix composites Interface structure Mechanical and frictional properties

Photocatalytic C(sp^(3))-H gem-Difluoroallylation and Alkylation with Alkenes via a Base-Assisted Formal 1,2-Hydrogen Atom Transfer of Amidyl Radicals

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Chinese Journal of Chemistry 2024年第18期42卷 2203-2210页

作者： Meifang Tang Bingbing Feng Yanyang bao Zhongtian Xu Chao Huang Hanliang Zheng Gangguo zhu Yanan Wang Zheliang Yuan Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials SciencesZhejiangNormalUniversity688YingbinRoadJinhuaZhejiang321004China

Compared to well-established 1,5-HAT of N-centered radicals,the synthetic applications of 1,2-HAT process were scarce due to the high barrier and constrained three-membered transition ***,we have developed a novel C(sp')-H gem-difluoroallylation via a base assisted formal 1,2-HAT of amidyl radicals with the reductive quenching cycle of *** transformation enables the efficient formation ofα-aminoalkyl radicals via 1,2-HAT and showcases good functional group *** preliminary mechanistic experiments,along withDensity Functional Theory(DFT)calculations demonstrate thefeasibility of 1,2-HAT of amidyl radicals,especially when assisted by a ***,our method also succeeds in the Giese addition of electron-deficient alkenes as well as styrene.

关键词： 1,2-Hydrogen atom transfer Amidyl radicals gem-Difluoroallylation Alkenes Photocatalysis Defluoroalkylation