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Acta Metallurgica sinica(English Letters) 2005年第4期18卷 533-538页

作者： Y.L. Yang c.s. Liu F.J. sun D. Zhang college of science Northeastern University Shenyang 110004 China college of Material ＆ Metallurgy Northeastern University Shenyang 110004China

cW-cO2 laser nitriding technique was applied to improve the properties （such as aging property and the core loss） of grain oriented silicon steel. The samples were nitrided with regular space. Laser power density and scanning speed were chosen as 7.8×10^5W·cm^-2 and 100mm·min^-1. By some laser irradiation, Fe4N and Fe3N were formed in the nitrided zone. The nitrided samples were annealed at the temperatures ranged from 100 to 90℃. The core loss of some interested samples was tested. The results show that the core loss of the nitrided samples with different thickness of 0.23 and 0.30mm decreased by 14.9% and 9.4% respectively, and the aging property were improved up to 800℃. The mechanism of laser nitriding to improve the properties of grain oriented silicon steel is discussed.

关键词： laser nitriding grain oriented silicon steel sheet core loss aging property

clinical features of aortic dissection associated with Takayasu＇s arteritis

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Journal of Geriatric cardiology 2017年第7期14卷 485-487页

作者： Xue-Ping wu Ping ZHU cardiovascular Department of southern Building Chinese PLA General Hospital Beijing China

Takayasu＇s arteritis （TA） is a chronic and nonspecific in- flammatory vessel disease that involves the aorta and its major branches. TA results in stenosis, occlusion or aneu- rysmal degeneration of large arteries pathologically. Al- though TA is an unusual disease, it is more commonly ob- served to occur in Asian females compared to the general population worldwide. Aortic dissection is a very rare com- plication of TA, and only a limited number of TA cases presenting with aortic dissection have been published so far.

关键词： Aortic dissection cT Takayasu's arteritis

catalyst-free,radical-mediated intermolecular 1,2-arylheteroarylation of alkenes by cleaving inert c–c bond

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science china chemistry 2021年第10期64卷 1703-1708页

作者： Meishan Ji Xinxin Wang Jige Liu Xinxin wu chen Zhu Key Laboratory of Organic synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Key Laboratory of synthetic chemistry of Natural substances Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

A novel photoinduced intermolecular 1,2-arylheteroarylation of alkenes and the efficient synthesis of valuable polyarylalkanes are *** reaction is operationally simple,proceeds under mild conditions and with no additional catalyst and *** strategically designed radical cascade reaction is enabled by electron transfer,and involves cleavage of an inert c–c *** process features broad functional group compatibility as well as high product transformability.

关键词： alkene difunctionalization arylation catalyst-free c–c activation functional group migration radical reactions

Tailoring depolarization temperature by phase transition causing properties evolution in Bi_(0.5)(Na_(1-x)K_(x))_(0.5)TiO_(3)ceramics

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Journal of Materials science & Technology 2022年第19期114卷 111-119页

作者： Diyan Yang Jihui Han Jie Yin Haoyue Xue Jiagang wu Department of Materials science Sichuan UniversityChengdu610065China

(Bi_(0.5)Na_(0.5))TiO_(3)-based materials have attracted widespread attention due to large electro-strain,large remnant polarization(P r)and high curie temperature(T c),but the existence of inherent depolarization temperature(T d)limits the temperature stability and application temperature *** this work,we find that K/Na ratio can regulate T d(from 90℃to 246℃)of the ceramics,which confirms that the increase of K substitution can effectively improve the temperature stability of the *** phase structure and electrical properties of Bi_(0.5)(Na_(1-x)K_(x))_(0.5)TiO_(3)(BNKT x)ceramics can be well modulated by changing K/*** addition,BNKT x system exhibits excellent piezoelectric response at morphotropic phase boundary(MPB)of 20%BKT content(d_(33)=180 pc/N),where rhombohedral(R 3 c)phase and tetragonal(P 4 bm)phase coexist in *** K further substitution,BNKT x ceramics transform into tetragonal phase,and the domain size grows due to the structural transition from short-range-correlated P 4 bm to long-range-correlated P 4 *** deferment of T d is also tightly related to the increase of P 4 mm/P 4 bm *** work can provide an effective way to tailor depolarization temperature and electrical properties of BNT-based ceramics.

关键词： Depolarization temperature (Bi_(0.5)Na_(0.5))Ti_(O 3) Piezoelectric ceramics Piezoelectric constant Temperature stability

Preparation of pistachio shell-based porous carbon and its adsorption performance for low concentration cO2

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PARTIcUOLOGY 2024年第12期95卷 103-114页

作者： Zhang, Yuhua Jin, Yanmei Li, song wu, Hong Luo, Huijuan Liupanshui Normal Univ Sch Chem & Mat Engn Liupanshui Peoples R China Guizhou Prov Key Lab clean coal Utilizat Liupanshui Peoples R China Guizhou coal Prod Qual supervis & Inspect Inst Liupanshui 553001 Peoples R China

In this study, high-performance porous carbon for cO2 adsorption was synthesized from pistachio shells and modified with urea to enrich nitrogen content in the porous structure. The effects of activation temperature, KOH-to-carbon ratio, and urea addition on the pore structure and cO2 adsorption capacity of the porous carbon were investigated. characterization was conducted using N2 adsorption-desorption isotherms, scanning electron microscopy (sEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPs), and Fourier-transform infrared spectroscopy (FT-IR). Results showed that under preparation conditions of 700 degrees c, KOH-to-carbon ratio of 2, and 15 wt% urea concentration, the synthesized GAc-152-70 0 porous carbon exhibited a maximum specific surface area of 1395 m2/g, micropore volume of 0.505 cm3/g, and N-5 peak area ratio of 65.57%. It achieved a cO2 adsorption capacity of 3.56 mmol/g. Nitrogen functional groups on the porous carbon primarily existed as pyridinic N (N-6), pyrrolic/pyridinic N (N-5), and quaternary N (N-Q), with the enriched micropores and high N-5 content being crucial for cO2 adsorption. (c) 2024 chinese society of Particuology and Institute of Process Engineering, chinese Academy of sciences. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： Pistachio shells Porous carbon cO 2 adsorption

Numerical simulations of FPsO with sloshing tanks in a random freak waves

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Journal of Hydrodynamics 2022年第3期34卷 491-498页

作者： Yuan Zhuang Guo Wang De-cheng Wan Jian-wei wu computational Marine Hydrodynamics Lab(cMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Marine Design and Research Institute of china Shanghai200011China wuhan second ship Design and Research Institute Wuhan430205China

This paper presents a potential-viscous coupled method to simulate a floating production storage and offloading(FPsO)with two liquefied natural gas(LNG)sloshing tanks in a random freak *** potential theory uses high-order-spectral(HOs)*** random wave is generated by HOs for 2000 s,and a freak wave is observed around 1830 *** FPsO LNG model was firstly verified in regular waves using HOs-computational fluid dynamics(cFD)coupled method and validated the HOs-cFD coupled method can solve the ship motion coupled with sloshing tanks *** FPsO with LNG tanks are then simulated in the freak wave,showed the coupling effects when the freak wave *** the existence of the sloshing tanks,the amplitude of the roll motion decreases and the period of roll motion *** breaking phenomenon can be observed when the wave crest of the freak wave encounters with the ship.

关键词： ship motion with sloshing tank high-order-spectral-computational fluid dynamics(HOs-cFD)method naoe-FOAM-sJTU solver freak waves

Nematic and smectic stripe phases and stripe-sk X transformations

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science china(Physics,Mechanics & Astronomy) 2022年第4期65卷 112-119页

作者： Hai-Tao wu Xu-chong Hu X.R.Wang Department of Physics The Hong Kong University of Science and TechnologyHong Kong 999077China HKUsT shenzhen Research Institute Shenzhen 518057China

Based on the findings of skyrmion nature of stripes and the metastability of a state of an arbitrary number of skyrmions,precisely controlled manipulation of stripes of skyrmion number 1 in pre-designed structures and mutual transformation between helical states and skyrmion crystals(sk Xs)are demonstrated in chiral magnetic *** a proof of the concept,we show how to use patterned magnetic fields and spin-transfer torques(sTTs)to generate nematic and smectic stripe phases,as well as“UsT”mosaic from three curved *** one stripe into many pieces and coalescing several skyrmions into one by various external fields are good ways to transform helical states and sk Xs from each other.

关键词： spintronic Landau-Lifshitz-Gilbert equation simulation stripe skyrmion skyrmion crystal nematic phase

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simulation-Guided Design of Bamboo Leaf-Derived carbon-Based High-Efficiency Evaporator for solar-Driven Interface Water Evaporation

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Energy & Environmental Materials 2022年第4期5卷 1323-1331页

作者： Yitian wu Rui Kong chaoliang Ma Lanze Li Yu Zheng Yingzhuo Lu Lulu Liang Yajun Pang Qiang wu Zhehong shen Hao chen college of chemistry and Materials Engineering Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency UtilizationNational Engineering and Technology Research Center of Woodbased Resources Comprehensive UtilizationKey Laboratory of Wood Science and Technology of Zhejiang ProvinceZhejiang A&F UniversityHangzhou 311300China

solar interface water evaporation has been demonstrated to be an advanced method for freshwater production with high solar energy *** development of evaporators with lower cost and higher efficiency is a key challenge in the manufacture of practical solar interface water evaporation ***,a bamboo leaf-derived carbon-based evaporator is designed based on the light trace *** then,it is manufactured by vertical arrangement and carbonization of bamboo leaves and subsequent polyacrylamide *** vertically arranged carbon structure can extend the light path and increase the light-absorbing area,thus achieving excellent light ***,the continuous distribution of polyacrylamide hydrogel between these vertical carbons can support high-speed water delivery and shorten the evaporation ***,this evaporator exhibits an ultrahigh average light absorption rate of~96.1%,a good water evaporation rate of 1.75 kg m^(-2) h^(-1),and an excellent solar-to-vapor efficiency of 91.9%under one sun ***,the device based on this evaporator can effectively achieve seawater desalination,heavy metal ion removal,and dye separation while completing water *** this device is highly available for actual outdoor applications and repeated recycling.

关键词： bamboo leaf carbon materials desalination waste water treatment water evaporation

capsaicin restores sodium iodine symportermediated radioiodine uptake through bypassing canonical TsH–TsHR pathway in anaplastic thyroid carcinoma cells

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Journal of Molecular cell Biology 2021年第11期13卷 791-807页

作者： shichen Xu Xian cheng Jing wu Yunping Wang Xiaowen Wang Liying wu Huixin Yu Jiandong Bao Li Zhang NHc Key Laboratory of Nuclear Medicine Jiangsu Key Laboratory of Molecular Nuclear MedicineJiangsu Institute of Nuclear MedicineWuxi 214063China school of Food science and Technology Jiangnan UniversityWuxi 214122China Department of Radiopharmaceuticals School of PharmacyNanjing Medical UniversityNanjing 211166China school of Life science and Technology Southeast UniversityNanjing 210096China

Anaplastic thyroid cancer(ATc)is a rare but highly lethal *** are resistant to standard therapies and are extremely difficult to *** stepwise cell dedifferentiation results in the impairment of the iodine-metabolizing machinery and the infeasibility of radioiodine treatment in ***,reinducing iodine-metabolizing gene expression to restore radioiodine avidity is considered as a promising strategy to fight against *** the present study,capsaicin(cAP),a natural potent transient receptor potential vanilloid type 1(TRPV1)agonist,was discovered to reinduce ATc cell differentiation and to increase the expression of thyroid transcription factors(TTFs including TTF-1,TTF-2,and PAX8)and iodine-metabolizing proteins,including thyroidstimulating hormone receptor(TsHR),thyroid peroxidase,and sodium iodine symporter(NIs),in two ATc cell lines,8505c and ***,cAP treatment promoted NIs glycosylation and its membrane trafficking,resulting in a significant enhancement of radioiodine uptake of ATc cells in ***,cAP-activated TRPV1 channel and subsequently triggered ca2þinflux,cyclic adenosine monophosphate(cAMP)generation,and cAMP-responsive element-binding protein(cREB)signal ***,cREB recognized and bound to the promoter of sLc5A5 to facilitate its ***,the TRPV1 antagonist cPZ,the calcium chelator BAPTA,and the PKA inhibitor H-89 effectively alleviated the redifferentiation exerted by cAP,demonstrating that cAP might improve radioiodine avidity through the activation of the TRPV1–ca2þ/cAMP/PKA/cREB signaling *** addition,our study indicated that cAP might trigger a novel cascade to redifferentiate ATc cells and provide unprecedented opportunities for radioiodine therapy in ATc,bypassing canonical TsH–TsHR pathway.

关键词： anaplastic thyroid carcinoma capsaicin redifferentiation sodium iodine symporter radioactive iodine therapy

Polypropylene Glycol-Modified Anode Interface for High-Performance Perovskite solar cells

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chinese Journal of chemistry 2022年第22期40卷 2694-2700页

作者： Fei wu Kangrong Yan Haotian wu Yuanhang Guo shiqi shan Tianyi chen Weifei Fu Lijian Zuo Hongzheng chen state Key Laboratory of silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Scienceand EngineeringZhejiang UniversityHangzhouZhejiang310027China Zhejiang University-Hangzhou Global scientific and Technological Innovation center HangzhouZhejiang 310014China

The surface properties and chemical interactions are critical for perovskite solar cells(PVscs).In this work,we show that the polypropylene glycol(PPG)can simultaneously passivate the NiOx surface and grain boundaries of perovskite films,allowing more efficient charge transfer at the anode interface and reducing the recombination of *** a result,the open-circuit voltage(Voc)of MAPbI3 based inverted PVscs increases from 1.087 V to 1.127 V,and the short-circuit current density(Jsc)is increased from 20.87 mA·cm^(–2) to 22.32 mA·cm^(–2),thereby realizing the improvement of the device power conversion efficiency(PcE)from 18.34%to 20.12%.Moreover,the steady-state output of the PVscs is remarkably improved by incorporating *** analysis of surface properties suggests that part of the PPG at the interface can permeate into the precursor solution with the help of DMF solvent and remain in the perovskite layer to form a concentration *** ether bond of PPG and the uncoordinated Pb2+in the perovskite are coordinated to achieve passivation effects and improve device performance.

关键词： Nanoparticles Polymers Interfaces Passivation effects Inverted perovskitesolarcells