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Tuning Cr-rich nanoprecipitation and heterogeneous structure in equiatomic CrFeNi medium-entropy stainless alloys

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Journal of Iron and Steel Research International 2022年第3期29卷 529-536页

作者： Kai wang xue-jiao wang Tuan-wei Zhang Xi Jin Hui-jun Yang Jun-wei Qiao College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China

High-/medium-entropy stainless alloys(HESAs/MESAs)are a new kind of alloys with great potential to combine excellent properties from high-/medium-entropy alloys(HEAs/MEAs)and stainless steels.A CrFeNi MESA was chosen to investigate its microstructures and mechanical *** homogenization,the strength and ductility of CrFeNi MESAs with single-phase face-centered-cubic(fcc)structure were higher compared with those of Fe_(100−x-y)Cr_(x)Ni_(y)austenitic stainless ***-rich body-centered-cubic(bcc)precipitates and heterogeneous structure were introduced by cold rolling and annealing at 800℃.Rolling at 700℃ results in higher dislocation density and the occurrence of lamellar Cr-rich bcc ***-density dislocations and fcc grains with heterogeneous structure,together with Cr-rich bcc precipitates,contribute to a yield strength improvement of about 50 MPa,and appreciable tensile yield strength of~540 MPa and fracture strain of~20%are *** reveals that not only compositional variations but also grain size and phase structure tuning can be utilized for achieving desired mechanical properties.

关键词： High-entropy stainless alloy Medium-entropy stainless alloy Mechanical property Warm rolling Heterogeneous structure Precipitation strengthening

A Review: The Phytochemistry, Pharmacology, and Pharmacokinetics of Curcumae Longae Rhizoma(Turmeric)

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World Journal of Traditional Chinese Medicine 2022年第4期8卷 463-490页

作者： Song-Tao Liu Sen-wang Zheng A-jiao Hou Jia-Xu Zhang Song wang xue-jiao wang Huan Yu Liu Yang Key Laboratory of Basic and Application Research of Beiyao(Heilongjiang University of Chinese Medicine) Ministry of EducationHarbin 150040China

Curcumae Longae Rhizoma(CLR)is the rhizome of Curcuma longa *** studies show that CLR can be used to treat cervical cancer,lung cancer,lupus nephritis,and other *** this paper,we review botany,traditional application,phytochemistry,pharmacological activity,and pharmacokinetics of *** literature from 1981 to date was entirely collected from online databases,such as Web of Science,Google Scholar,China Academic Journals full-text database(CNKI),Wiley,Springer,PubMed,and *** data were also obtained from ancient books,theses and dissertations,and Flora Reipublicae Popularis *** are a total of 275 compounds that have been isolated from CLR,including phenolic compounds,volatile oils,and *** therapeutic effect of turmeric has been expanded from breaking blood and activating qi in the traditional sense to antitumor,anti-inflammatory,antioxidation,neuroprotection,antibacterial,hypolipidemic effects,and other ***,the active ingredients and mechanisms of action related to relieving disease remain ill defined,which requires more in-depth research and verification at a clinical level.

关键词： Botany Curcumae Longae Rhizoma pharmacokinetics pharmacology phytochemistry traditional uses

The Fruits of Xanthium sibiricum Patr: A Review on Phytochemistry, Pharmacological Activities, and Toxicity

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World Journal of Traditional Chinese Medicine 2020年第4期6卷 408-422页

作者： Hai Jiang xue-jiao wang Liu Yang Jia-Xu Zhang A-jiao Hou Wen-Jing Man Song wang Bing-You Yang Kelvin Chan Qiu-Hong wang Hai-xue Kuang Key Laboratory of Chinese Materia Medica Heilongjiang University of Chinese MedicineMinistry of EducationHarbin150040PR China School of Traditional Chinese Medicine Guangdong Pharmaceutical UniversityGuangzhou528458PR China College of Pharmacy Faculty of PharmacyThe University of SydneyNSWAustralia

In recent years,drug development and research have gradually shifted from chemical synthesis to biopharmaceutical and natural *** medicines,such as traditional Chinese medicine,have been among the first studied because of their long medicinal history,simplicity,and the relatively low cost of *** them,Xanthii Fructus(XF)is famous for the treatment of *** this article,the achievements of research on XF from 1953 to 2020 are systematically reviewed,focusing on the aspects of chemical constituents,pharmacological effects,clinical applications,toxicity and side effects,and processing *** date,there have been significant advances in both the phytochemistry and pharmacology of *** traditional uses have been validated and clarified in modern pharmacological ***,its mechanism of action in the treatment of allergic diseases has not been satisfactorily *** in vitro and in vivo studies are required to rationally develop new drugs and to elucidate the therapeutic potential of XF.A comprehensive evaluation of XF and an understanding of network pharmacology are also needed.

关键词： Pharmacological activities phytochemistry toxicity Xanthii Fructus

Tensile strength prediction of dual-phase Al0.6CoCrFeNi high-entropy alloys

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International Journal of Minerals,Metallurgy and Materials 2020年第10期27卷 1341-1346页

作者： Min Zhang Jin-xiong Hou Hui-jun Yang Ya-qin Tan xue-jiao wang Xiao-hui Shi Rui-peng Guo Jun-wei Qiao College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China

The evolution of the microstructure and tensile properties of dual-phase Al0.6CoCrFeNi high-entropy alloys(HEAs)subjected to cold rolling was *** homogenized Al0.6CoCrFeNi alloys consisted of face-centered-cubic and body-centered-cubic phases,presenting similar mechanical behavior as the as-cast *** yield and tensile strengths of the alloys could be dramatically enhanced to^1205 MPa and^1318 MPa after 50%rolling reduction,respectively.A power-law relationship was discovered between the strain-hardening exponent and rolling *** tensile strengths of this dual-phase HEA with different cold rolling treatments were predicted,mainly based on the Hollomon relationship,by the strain-hardening exponent,and showed good agreement with the experimental results.

关键词： dual-phase high-entropy alloys cold rolling strain-hardening exponent tensile strength

All-fiber linearly polarized laser oscillator by fiber coiling loss control

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Chinese Physics B 2018年第4期27卷 305-308页

作者： Yu-Sheng Huang Qi-Rong Xiao Dan Li Ze-Hui wang xue-jiao wang Ping Yan Ma-Li Gong Center for Photonics and Electronics Department of Precision Instrument Tsinghua University Beijing 100084 China

In this paper,we demonstrate an all-fiber linearly polarized fiber laser *** single polarization of the oscillator is achieved through the careful designing of the active fiber *** relationship between fiber coiling diameter and polarization extinction ratio and optical efficiency is studied,whose results lead to an optimized *** thermal management of the oscillator is also refined,which allows the oscillator to reach a maximum output power of44.1 W with an optical-to-optical efficiency of 57.9%.A high average polarization extinction ratio of 21.6 d B is achieved during a 2-hour stability *** oscillator also owns a narrow 3-d B bandwidth of 0.1 nm,as well as near-diffraction-limit beam quality of M^2～ 1.14.

关键词： fiber laser oscillator linearly polarized all-fiber

The 100 most influential articles in myopia:a bibliometric analysis

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International Journal of Ophthalmology(English edition) 2022年第1期15卷 150-156页

作者： xue-jiao wang Di Chen Yang Jiang Yu-Yu Chou Yan Luo Ying Li Jin Ma Yong Zhong Department of Ophthalmology Peking Union Medical College HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China

AIM:To identify and characterize the 100 most influential articles in the field of myopia over the last ***:Articles on myopia published between January 1975 and March 2020 were searched through the Web of Science Core Collection *** independent authors reviewed and determined the 100 most cited *** characteristics of each eligible article were recorded,including authors,institutions,countries,journals,publication date,total citations(TCs),annual citations(ACs),research focus and article ***:The top 100 most influential articles were published between 1983 and 2016,with 1999 as the most prolific *** mean number of TCs was 288(range:193-537)and the mean number of ACs was 19(range:7-109).Treatment and epidemiology of myopia were the most important research *** articles were published in 21 journals led by Ophthalmology(29%)followed by Investigative Ophthalmology&Visual Science(23%).The number of ACs for articles published in the last ten years was significantly higher than that for the other most-cited articles(44 vs 16,Mann-Whitney U test P<0.01).There is no difference in the number of TCs between original articles and review articles,while the number of ACs for review articles was significantly higher than that for original articles(22 vs 17,Mann-Whitney U test P<0.05).CONCLUSION:This bibliometric analysis can provide us with concise information about the development trend of research in the field of myopia in the past few decades,and provide an important reference for researchers to guide future research.

关键词： bibliometric analysis myopia citation therapy refractive surgery

A Review of the Pharmacology, Application, Ethnopharmacology, Phytochemistry, Quality Control, Processing, Toxicology, and Pharmacokinetics of Paridis Rhizoma

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World Journal of Traditional Chinese Medicine 2022年第1期8卷 21-49页

作者： Song-Tao Liu Huan Yu A-jiao Hou Wen-Jing Man Jia-Xu Zhang Song wang xue-jiao wang Sen-wang Zheng Xiao-Lin Su Liu Yang Key Laboratory of Chinese Materia Medica Heilongjiang University of Chinese MedicineHarbinChina Department of Biochemistry and Molecular Biology Indiana University School of MedicineIndianapolisINUnited States

Paridis Rhizoma(PR) is also known as the flower with seven leaves and one branch, PR with golden thread, etc. It tastes bitter, numb, and slightly cold and has little poison. It is often used for the treatment of external skin infection, sore throat, snake bite, fall pain, frightening convulsion, and other diseases. PR has analgesic, sedative, anti-inflammatory, hemostatic, antitumor, antibacterial, antiviral, and renal and liver protective effects;inhibition of angiogenesis;immune regulation;and antioxidant and cardiovascular effects, and antifertility and anti-early pregnancy sperm killing effects. Steroidal saponins, β-ecdysone, polysaccharides, microelements, flavonoid glycosides, and amino acids were isolated from PR. In this paper, its pharmacology, application, ethnopharmacology, phytochemistry, quality control, toxicology, and pharmacokinetics were reviewed. This information suggests that we should focus on the development of new drugs related to PR, including specific ingredients, so as to make PR play a greater therapeutic potential. At the same time, attention should be paid to the rational use of PR resources to avoid excessive using, resulting in resource shortage. Therefore, we can carry out the research on the substitutes of PR, a large-scale planting of(Paridis Rhizoma) PR, and develop the same genus of PR and other resources. So far, great progress has been made in pharmacology and phytochemistry, especially in antitumor research, and many traditional uses have been confirmed and clarified by modern pharmacological research. However, there are few studies on the mechanism of its pharmacological action and few studies on processing. To develop new drugs in the future, more studies and experiments are still needed to prove the effect of PR and explore more new effects.

关键词： Analytical methods Paridis Rhizoma pharmacokinetics pharmacology phytochemistry toxicology

Internal Features of Fiber Fuse in a Yb-Doped Double-Clad Fiber at 3 kW

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Chinese Physics Letters 2018年第5期35卷 29-33页

作者： Qi-Rong Xiao Jia-Ding Tian Yu-Sheng Huang xue-jiao wang Ze-Hui wang Dan Li Ping Yan Ma-Li Gong Center for Photonics and Electronics Department of Precision Instrument Tsinghua University

We study internal features of fiber fuse in a Yb-doped double-clad fiber. The samples of fiber fuse are acquired at the power level of 3 kW in an all-fiber forward-pumped master oscillator power amplifier configuration fiber laser that is built specially for fiber fuse analyses. At this high power level, drastic refractive-index redistribution arises in an expended high refractive index area around the bullet-shaped voids of fiber fuse. Electron spin resonance analyses on post-fiber-fuse samples of the Yb-doped double-clad fiber indicate rising Frenkel defect concentration, meanwhile showing a new resonance center that is different from the ones of the Ge-doped fibers studied previously. This new resonance center probably suggests the generation of Al-oxygen hole center, a kind of defect formed during the catastrophic fuse process.

关键词： Fiber lasers

Holotrichones A and B, potent anti-leukemic lindenane-type sesquiterpene trimers with unprecedented complex carbon skeletons from a rare Chloranthus species

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Chinese Chemical Letters 2024年第12期35卷 498-502页

作者： xue-jiao wang Jun-Li Xin Hong Xiang Ze-Yu Zhao Yu-Hang He Haibo wang Guangyao Mei Yi-Cheng Mao Juan Xiong Jin-Feng Hu Institute of Natural Medicine and Health Products School of Pharmaceutical SciencesZhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou University School of Pharmacy Fudan University Zhejiang Hongyuan Pharmaceutical Co. Ltd.

Two lindenane-type sesquiterpene (LDS) trimers with unprecedented carbon skeletons,holotrichones A(1) and B (2),were obtained from the whole plant of Chloranthus holostegius *** by a ultra performance liquid chromatography-photodiode array detector-mass spectrometry (UPLC-PDA-MS)-guided isolation *** 1 represents the first LDS trimer incorporating a unique 3/5/6/6-fused framework,in which a lindenane-type monomer and the 2-methylbutyryl substituent of an LDS dimer is bridged by a six-membered ring *** 2 is the first hetero-trimer fused by an LDS dimer with a p-benzoquinone-meroterpenoid,featuring an unusual 3/5/6/6/3/5/6/6/6 nonacyclic system fused by the sesquiterpenoid unit and a 2-geranyl-6-methyl-2,5-cyclohexadien-1,4-dione *** compound 2,the dimeric LDS moiety is equipped with a rare oxaspiro[4.5]decane *** structures,including absolute configurations,were established by spectroscopic methods,GIAO NMR calculations and DP4+probability analyses,electronic circular dichroism (ECD) calculations,and single-crystal X-ray diffraction *** plausible biogenetic pathway speculation indicated that hetero-and homo-DielsAlder additions may dominate the formation of these highly fused polycyclic *** compounds 1 and 2 induced the human acute myeloid leukemia MV-4–11 cell death via apoptosis induction,which deserves further investigation on this new chemical class of LDS oligomers for their anti-leukemic potential.

关键词： Holotrichones Lindenane-type sesquiterpene trimers Acute myeloid leukemia Cell apoptosis