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sunlight-induced Permanent Hair Dyeing

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Chinese Journal of Polymer Science 2025年第2期43卷 261-270页

作者： Ting zhang Bo Liang jian-hua zhang Lei Yang Jun-Fei hua Yi-Wen Li College of Polymer Science and Engineering State Key Laboratoryof Polymer Materials EngineeringSichuan UniversityChengdu 60065China Schoolof Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China School of Emergent Soft Matter South China University of TechnologyGuangzhou 510640China

Hair coloring has emerged as an integral part of the cosmetic industry,particularly in response to the increasing global aging *** natural melanin analog,polydopamine(PDA),has garnered considerable attention as an eco-friendly hair dye,and several kinds of polymerization ways of dopamine(DA)have been proposed including alkali catalysis,metal ion catalysis,strong oxidants,and enzyme-mediated oxidation reactions and *** the controllability of polymerization and potential toxicity of involved metal ions are still in *** by the photoprotective mechanism in human skin,we have developed the melanin-inspired hair dyeing strategy that allowed for the in situ oxidative polymerization of DA under ultraviolet(UV)*** polymerization was triggered by photobase generators(PBGs),a class of compounds that produced organic bases upon UV and sunlight *** resulting hair showed an adjustable color from light brown to black by tuning the ratio of DA and PBG(DA@PBG),the concentration of DA,and light exposure *** dyed hairs showed excellent washing resistance and superior anti-static ***,Hair Color Spray DA@PBG also demonstrated a desirable hair dyeing effect and excellent biosecurity by simply spraying it on the hair under *** novel sunlight-induced method provided a new direction towards the preparation of natural hair dyes and could promote the development of green and safe hair dyes in colorful and brilliant artistic-grade hair coloring.

关键词： Polydopamine Melanin Polymerization Hair dye Photo-initiation

Prediction of microstructure evolution of ZK61 alloy during hot spinning by internal state variable model

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Transactions of Nonferrous Metals Society of China 2025年第1期35卷 126-142页

作者： Jin-qi PAN Wen-cong zhang jian-lei YANG Song-hui WANG Yong WU huan LI School of Materials Science and Engineering Harbin Institute of Technology WeihaiWeihai 264209China College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

An internal state variable(ISV)model was established according to the experimental results of hot plane strain compression(PSC)to predict the microstructure evolution during hot spinning of ZK61 *** effects of the internal variables were considered in this ISV model,and the parameters were optimized by genetic *** validation,the ISV model was used to simulate the evolution of grain size(GS)and dynamic recrystallization(DRX)fraction during hot spinning via Abaqus and its subroutine *** comparing the simulated results with the experimental results,the application of the ISV model was proven to be ***,the strength of the thin-walled spun ZK61 tube increased from 303 to 334 MPa due to grain refinement by DRX and texture ***,some ultrafine grains(0.5μm)that played an important role in mechanical properties were formed due to the proliferation,movement,and entanglement of dislocations during the spinning process.

关键词： internal state variable model hot spinning ZK61 alloy finite element simulation texture evolution

Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan huang Yi-De zhang Jie Chen Hai-Di Fan Wan Wang Bin Wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian Guo jian-Gang Shen su-hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

Effectiveness of Lianhua Qingwen Granule and Jingyin Gubiao Prescription in Omicron BA.2 Infection and Hospitalization:A Real-World Study of 56,244 Cases in Shanghai,China

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Chinese Journal of Integrative Medicine 2025年第1期31卷 11-18页

作者： zhang Yu-jie LIU Guo-jian zhang Han LIU Chen CHEN Zhi-qiang XIAN Ji-shu SONG Da-li LIU Zhi YANG Xue WANG Ju zhang Zhe zhang Lu-ying FENG hua zhang Yan-qi TAN Liang Department of Basic Medicine Army Medical UniversityChongqing400038China Department of Radiology The First Affiliated Hospital of the Army Medical UniversityChongqing400038China Department of Pediatrics The First Affiliated Hospital of the Army Medical UniversityChongqing400038China Department of Neurosurgery The First Affiliated Hospital of the Army Medical UniversityChongqing400038China State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao SAR519000China Department of Health Statistics College of Military Preventive MedicineArmy Medical UniversityChongqing400038China Department of Critical Care Medicine The First Affiliated Hospital of the Army Medical UniversityChongqing400038China

Objective: To examine the effectiveness of Chinese medicine(CM) Lianhua Qingwen Granule(LHQW) and Jingyin Gubiao Prescription(JYGB) in asymptomatic or mild patients with Omicron infection in the shelter hospital. Methods: This single-center retrospective cohort study was conducted in the largest shelter hospital in Shanghai, China, from April 10, 2022 to May 30, 2022. A total of 56,244 asymptomatic and mild Omicron cases were included and divided into 4 groups, i.e., non-administration group(23,702 cases), LHQW group(11,576 cases), JYGB group(12,112 cases), and dual combination of LHQW and JYGB group(8,854 cases). The length of stay(LOS) in the hospital was used to assess the effectiveness of LHQW and JYGB treatment on Omicron infection. Results: Patients aged 41–60 years, with nadir cycle threshold(CT) value of N gene sults of factorial design ANOVA proved that the LHQW/JYGB combination therapy synergistically shortened LOS(P=0.032). Conclusions: Patients with a nadir CT value <25were more likely to accept CM. The LHQW/JYGB combination therapy could shorten the LOS of Omicron-infected individuals in an isolated environment.

关键词： Lianhua Qingwen Granule Jingyin Gubiao Prescription Chinese medicine Omicron COVID-19

Stable geometries and magnetic properties in transition-metaldoped Sm5Co19 permanent magnet alloys:Insights from DFT

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Science China(Physics,Mechanics & Astronomy) 2025年第04期Mechanics & Astronomy) .卷 223-231页

作者： Cheng Fang Zhi Yan Xu-Jin zhang jian-hua Xiao Fang Wang Xiao-Hong Xu School of Chemistry and Materials Science of Shanxi Normal University & Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education Research Institute of Materials Science Shanxi Key Laboratory of Advanced Magnetic Materials and Devices Shanxi Normal University

Sm5Co19permanent magnet alloy holds significant potential for applications due to its ultra-high intrinsic coercivity, low temperature coefficient of coercivity and high Curie temperature. However, its metastable nature poses challenges for experimental synthesis. Here we propose to use transition metal doping to effectively improve the structural stability and comprehensive magnetic properties of Sm5Co19based on first-principles calculations. We find that Sc, Ti, V, Cr, Mn, and Zr preferentially occupy the Sm-6c2 site, while Fe, Ni, Cu, and Zn preferentially occupy the Co-6c2, Co-18h1, Co-18h2, and Co-18h2 site, respectively. Additionally, doping elements at their optimal sites significantly enhance the structural stability of the doped system. Whether substituting Sm or Co sites, doping with Cr, Mn, and Fe significantly increases the total magnetic moment of the Sm5Co19system. Within the number of doping atoms range from 0 to 12, doping with Cr, Mn, and Fe enhances both the structural stability and the total magnetic moment of the Sm5Co19system, further confirming the significant impact of atomic site occupation on the performance of the doped system. This study presents a feasible approach for enhancing the structural stability of Sm5Co19permanent magnets and offers valuable theoretical guidance for the development of highperformance Sm-Co based permanent magnet materials.

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CSF multi-omics of intracerebral hemorrhage from onset to reperfusion underscores lipid metabolism in functional outcome

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Science Bulletin 2025年第2期70卷 162-166页

作者： Yibin jiang Sin Man Lam Shuixian zhang huan Miao Yong Zhou Qian zhang Tengyuan Zhou Hui Feng Ning Ding Haomiao Wang Ran Luo Yi Yin hua Feng Guanghou Shui Rong Hu Department of Neurosurgery and Key Laboratory of Neurotrauma Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Chongqing Key Laboratory on Big Data for Bio Intelligence Chongqing University of Posts and TelecommunicationsChongqing 400065China Clinical Medical Research Center Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China

Constituting 6.5%to 19.6%of all stroke cases worldwide,non-traumatic intracerebral hemorrhage(ICH)represents the most devastating form of stroke,with aging,male gender,and hypertension being important risk factors that predispose individuals to ICH[1,2].Injuries following episodes of ICH can be classified into two forms,namely(1)primary injury arising from mechanical pressure exerted by the hematoma on adjacent tissues,(2)secondary injury resulting from oxidative stress and inflammation mediated by blood cell degradation products and coagulation factors[3].

关键词： metabolism hemorrhage intracerebral

Cell search scheme for long-term evolution of TD-SCDMA system

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The Journal of China Universities of Posts and Telecommunications 2008年第3期15卷 24-29,46页

作者： su huan zhang jian-hua LI Ke Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China TD Technology Ltd. Beijing 100102 China

Cell search is an important aspect for 3G long-term evolution （LTE）. This article deals with cell search in the time-division-synchronou code-division multiple access （TD-SCDMA） LTE system. On the basis of the synchronization channel （SCH） and cell specific reference symbols （CSRSs）, the proposed cell search procedure includes five stages： frame detection and coarse timing, coarse carrier frequency offset （CFO） estimation, fine timing, fine CFO estimation, and cell identification. The key features of the proposed method are as follows： first, the neighboring three cells＇ CSRSs are frequency division multiplexed （FD） to mitigate inter-cell interference. Second, the frequency domain differential cross-correlation, computed from CSRSs are maximally ratio combined for cell identification. Finally, the large set Kasami sequences are quadrature phase shift key （QPSK） modulated to be cell specific sequences （CSSs）, to support a large number of target cells. Simulations show that the FD method is better than the code division multiplexed （CD） method.

关键词： cell search LTE TD-SCDMA synchronization Kasami sequence

Side-channel free quantum digital signature with source monitoring

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Chinese Physics B 2025年第1期34卷 53-58页

作者： Luo-Jia Ma Ming-Shuo sun Chun-Hui zhang hua-jian Ding Xing-Yu Zhou jian Li Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Broadband Wireless Communication and Sensor Network Technology Key Laboratory of Ministry of EducationNanjing University of Posts and TelecommunicationsNanjing 210003China

Quantum digital signature(QDS)can guarantee the information-theoretical security of a signature with the fundamental laws of quantum ***,most current QDS protocols do not take source security into account,leading to an overestimation of the signature *** this paper,we propose to utilize Hong–Ou–Mandel interference to characterize the upper bound of the source imperfections,and further to quantify information leakage from potential ***,we combine decoy-state methods and finite-size analysis in analyzing the signature *** results demonstrate the performance and feasibility of our *** current work can improve the practical security of QDS systems,thereby promoting their further networked applications.

关键词： Hong-Ou-Mandel interference side-channel free quantum digital signature

酰胺类类离子液体催化α-烯烃聚合制备PAO基础油的研究

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现代化工 2025年第1期45卷 156-162页

作者：张艳华钱建华李君华张丹辽宁石油化工大学石油化工学院辽宁抚顺113001

通过一步法合成了AA-AlCl_(3)、NMA-AlCl_(3)、DMA-AlCl_(3)类离子液体催化剂。利用拉曼光谱仪、紫外-可见光谱仪、红外光谱仪、核磁氢谱仪、凝胶色谱仪、高温气相色谱仪等对类离子液体催化剂及其合成的聚α-烯烃基础油(PAO)进行表征分... 详细信息

通过一步法合成了AA-AlCl_(3)、NMA-AlCl_(3)、DMA-AlCl_(3)类离子液体催化剂。利用拉曼光谱仪、紫外-可见光谱仪、红外光谱仪、核磁氢谱仪、凝胶色谱仪、高温气相色谱仪等对类离子液体催化剂及其合成的聚α-烯烃基础油(PAO)进行表征分析。结果表明,双齿配位的NMA-AlCl_(3)具有适宜的酸性,其催化聚合的较优条件为n(NMA)∶n(AlCl_(3))=1∶2、催化剂质量分数为1%、反应温度为120℃、反应时间为60 min,可得到产率为87%、色度为0、凝点低于-60℃、黏度指数为135、多分散指数(PDI)=1.3、100℃运动黏度为4.3 mm^(2)/s的低黏度基础油。与市售PAO4基础油进行摩擦性能对比发现,聚合产品磨斑直径比市售PAO4降低了13%,说明其除具有优异的理化性能外,还具有良好的减摩抗磨性能。

关键词：类离子液体 1-辛烯催化聚合 PAO基础油