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High damping in Fe-Ga-la alloys:Phenomenological model for magneto-mechanical hysteresis damping and experiment

Journal of Materials science & Technology 2021年第13期72卷 69-80页

作者： Meng sun Anatoly Balagurov Ivan Bobrikov Xianping Wang wen wen Igor s.Golovin Qianfeng Fang Key laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China Department of Materials science and Engineering University of Science and Technology of ChinaHefei 230026China Frank laboratory of Neutron Physics Joint Institute for Nuclear ResearchDubnaRussia lomonosov Moscow state University MoscowRussia shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201204China National University of science and Technology“MIsIs” MoscowRussia

Ferromagnetic high damping(FHA)alloys with a wide temperature range from-150℃to 300℃have unique application value in extreme *** the present work,the damping behaviors of Fe-21 Ga-xla(x=0.12 wt.%,0.24 wt.%,0.47 wt.%,1.18 wt.%,and 2.33 wt.%la)alloys have been studied in detail,and a new phenomenological model has been *** the increase of la content,the laves phase(laGa_(2))in the matrix increases gradually,and the resistance opposing the domain movement increases as *** with the resul.s.of synchrotron radiation X-ray diffraction,neutron diffraction,and magnetic domain observation,the resistance mainly comes from three parts:the average stress related to the lattice distortion of the matrix,the average stress related to the increasing area energy of domain wal.s.DWs),and the ave rage stress related to the increasing demagnetization energy induced by the laves *** from the traditional method of reducing internal.s.ress through annealing to improve the damping capacity,the proper internal.s.ress barriers are necessary to Barkhausen jumps to dissipate ***,proper doping to balance resistance and mobility of DWs is a reliable way to improve damping ***,for Fe-Al and Fe-Cr based Alloys,the new model also has a good fitting *** study provides a theoretical and experimental reference for improving the functional properties of ferromagnetic alloys.

关键词： Magneto-mechanical hysteresis damping laves phase(laGa_(2)) Internal.s.ress distribution Neutron-diffraction patterns Domain walls

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Primary parenchymal.s.uamous cell carcinoma of the kidney:A case report

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World Journal of Clinical Cases 2025年第4期13卷 34-40页

作者： Zhi-Hui Zheng Bo shao Chao-Min Xu Ke Wang Jia-Zhu wen li-Kang luo Jia-Cheng Guan Department of Ultrasound The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Radiology Shulan(Quzhou)HospitalQuzhou 324000Zhejiang ProvinceChina Department of Radiology The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Pathology The Second people’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina

BACKGROUND Primary squamous cell carcinoma(sCC)of the renal parenchyma is extremely rare,with only nine cases *** sUMMARY This study reports a 51-year-old man with primary sCC of the renal *** patient was admitted with recurrent dull pain and discomfort in the right lumbar region,which had worsened over 2 weeks,accompanied by painful gross *** antigen(sCCA)levels were elevated,and imaging revealed a renal mass with associated *** patient underwent laparoscopic unilateral nephrectomy and lymph node *** pathology confirmed highly differentiated sCC with necrosis in the right renal parenchyma,with negative renal pelvis and *** pathological.s.age was *** months after surgery,the tumor recurred with involvement of the liver,right psoas major muscle,and inferior vena *** patient refused chemotherapy and succumbed to the disease 6 months postoperatively due to disease *** We report a case of primary sCC of the renal parenchyma,a rare renal *** clinical.s.mptoms,laboratory tests,and imaging findings are nonspecific,making accurate and timely diagnosis *** to the literature,for patients with renal calculi accompanied by a renal mass,elevated serum sCCA levels,and magnetic resonance imaging showing cystic or cystic-solid masses within the kidney with pseudocapsul.s.and heterogeneous mild enhancement,the possibility of this disease should be considered.

关键词： Renal tumor Renal parenchyma squamous cell carcinoma Renal calculi Computed tomography Case report

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Dissecting the cell microenvironment of ovarian endometrioma through single-cell RNA sequencing

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science China life sciences 2025年第1期 116-129页

作者： Jiangpeng Wu siyu Xia wenting Ye Yan sun Jing Cai Fubing Yu Haiping wen Xiuwei Yi Taikang li Mingwei Chen Jiayun Chen Ge song Chuanbin Yang Yali song Jigang Wang Department of Reproductive Medicine Dongguan Maternal and Child Health Care Hospital Department of Urology and Shenzhen Clinical Research Centre for GeriatricsShenzhen People's HospitalSouthern University of Science and Technology state Key laboratory for Quality Ensurance and sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Reproductive Medicine Center Foshan Women and Children Hospital state Key laboratory of Antiviral Drugs School of PharmacyHenan University

Ovarian endometrioma（OE）, also known as “chocolate cysts,” is a cystic mass that develops in the ovaries due to endometriosis and is a common gynecological condition characterized by the growth of endometrial tissue outside the uterus, leading to symptoms such as dysmenorrhea, pelvic pain, and infertility. However, the precise molecular and cellular mechanisms driving this pathophysiology remain largely unknown, posing challenges for diagnosis and treatment. Here, we employed integrated single-cell transcriptomic profiling of over 52,000 individual cel.s.from endometrial tissues of OE patients and healthy donors and identified twelve major cell populations. We identified notable alterations in cell type-specific proportions and molecular signatures associated with OE. Notably, the activation of IGFBP5+macrophages with pro-inflammatory properties, NK cell exhaustion, and aberrant proliferation of IQCG+and KlF2+epithelium are key features and may be the potential mechanisms underlying the pathogenesis of OE. Collectively, our data contribute to a better understanding of OE at the single cell level and may pave the way for the development of novel therapeutic strategies.

关键词： ovary high-throughput sequencing transcriptomics gene expression anal.s.s ligand-receptor anal.s.s

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THE BAND sTRUCTURE AND WORK FUNCTION OF TRANsPARENT CONDUCTING AlUMINUM AND MANGANEsE CO-DOPED ZINC OXIDE FIlMs

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Acta Metallurgica sinica(Engl.s. letters) 2005年第3期18卷 356-362页

作者： H.T.Cao Z.l.Pei X.B.Zhang J.Gong C.sun l.s.wen DivisionofsurfaceEngineeringofMaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China DivisionofsurfaceEngineeringofMaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China／／ShenyangResearchCenterforInterfacialMaterialsShenyang110016China

Al and Mn co-doped-ZnO fil.s.have been prepared at room temperature by DC reacti ve magnetron sputtering technique. The optical absorption coefficient, apparent and fundamental band gap, and work function of the fil.s.have been investigated using optical.s.ectroscopy, band structure anal.s.s and ultraviolet photoelectro n spectroscopy (UPs). ZnO fil.s.have direct allowed transition band structure, w hich has been confirmed by the character of the optical absorption coefficient. The apparent band gap has been found directly proportional to N2/3, showing that the effect of Burstein-Moss shift on the band gap variations dominates over the many-body effect. With only standard cleaning protocols, the work function of ZnO: (Al, Mn) and ZnO: Al fil.s.have been measured to be 4.26 and 4.21eV, respec tively. The incorporation of Mn element into the matrix of ZnO, as a relatively deep donor, can remove some electrons from the conduction band and deplete the d ensity of occupied states at the Fermi energy, which causes a l.s. in measured p hotoemission intensity and an increase in the surface work function. Based on th e band gap and work function resul.s. the energy band diagram of the ZnO: (Al, M n) film near its surface is also given.

关键词： transparent conducting oxide film band gap UPs work function

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Quasi-physical Algorithm for Protein Folding in an Off-lattice Model

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Communications in Theoretical Physics 2007年第1期47卷 181-185页

作者： lü Zhi-Peng HUANG wen-Qi sHI He school of Computer science and Technology Huazhong University of Science and Technology Wuhan 430074 China Academy of Mathematics and systems sciences the Chinese Academy of Sciences Beijing 100080 China

We study a three-dimensional off-lattice protein folding model, which involves two species of residues interacting through lennard-Jones potentials. By incorporating an extra energy contribution into the original potential function, we replace the original constrained problem with an unconstrained minimization of a mixed potential function. As such an efficient quasi-physical algorithm for solving the protein folding problem is presented. We apply the proposed algorithm to sequences with up to 55 residues and compare the computational resul.s.with the putative lowest energy found by several of the most famous algorithms, showing the advantages of our method. The dynamic behavior of the quasi-physlcal algorithm is also discussed.

关键词： quasi-physical algorithm conjugate gradient method protein folding off-lattice model

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锗锡浓度对硅锗锡合金性能影响的研究

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原子与分子物理学报 2025年第5期42卷 163-174页

作者：顾永顺温淑敏内蒙古工业大学理学院呼和浩特010051

由于siGesn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体... 详细信息

由于siGesn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体si_(96)与五组掺杂模型si_(92)Ge_(2)sn_(2)、si_(88)Ge_(4)sn_(4)、si_(84)Ge_(6)sn_(6)、si_(80)Ge_(8)sn_(8)、si_(76)Ge_(10)sn_(10)的电子结构及光学性质.通过对计算结果的分析可知,Ge,sn的加入使得si材料的带隙宽度减小,并且发生了由间接带隙向直接带隙的转变;Ge,sn浓度最高的siGesn合金的形成能相对较高,稳定性相较于Ge,sn含量低的材料较差;随着Ge,sn掺杂浓度的提高,电子态密度图显示出越来越明显的杂化现象,并且态密度的峰值主要有si原子的s轨道提供;Ge,sn浓度的提高还使得siGesn合金的吸收系数在可见光及近红外区域内增加、反射率在可见光及以上波段范围内提高、折射率变低、消光系数曲线向红外区域移动等光学性质变化,表明可以通过调节Ge,sn浓度来获得合适的光学特性,这为siGesn半导体在红外区域光电材料和器件的应用上提供了研究方向.

关键词： siGesn 电子特性光学性质

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The influence of low-intensity electromagnetic radiation of extremely high frequency upon experimental focal epileptic syndrome

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中国现代医学杂志 2011年第27期21卷 3331-3334页

作者： V.N.Zaporozhan l.s.Godlevsky s.l.Tsevelev Department of biophysics informaticsmedical equipment of Odessa national medical university

The aim of the work was confined to the investigation of the epileptic activity dynamics under conditions of extremely high frequency electromagnetic waves(EHF) radiation(7.1 mm,0.1 mW/cm2) upon focal epileptic activity,which was penicillin-induced(10 000 IU/ml) in frontal zone of the brain cortex in myorelaxed and artificially ventilated rats under acute experimental *** was establ.s.ed that preliminarily performed hypogeomagnetic period(3.0 h) with the inductivity of geomagnetic field reduction not l.s. than by 100 times caused the intensification of antiepileptic effects of EHF(15.0 min of exposition).It was pronounced in the form of decrease of foci intensity and significant reduction of life-span of foci-up to 115.3±13.4 minutes,which was both significant when compared with separate effects of hypogeomagnetic influence(187.3±12.5 min) and EHF(15.0 minutes of exposition) effect(164.2±12.5 minutes)(P <0.05).

关键词：癫痫症临床治疗疗效

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Are Type Ia supernovae Reliable Distance Indicators?

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Chinese Journal of Astronomy and Astrophysics 2007年第5期7卷 649-656页

作者： lian-Zhong lü Yi-Ping Qin Fu-wen Zhang National Astronomical Observatories / Yunnan Observatory Chinese Academy of Sciences Kunming 650011 Physics Department Guangxi University Nanning 530004 Center for Astrophysics of Guangzhou University Guangzhou 510006 Graduate school of Chinese Academy of sciences Beijing 100049

Recent applications of type Ia supernovae （sNe Ia） in cosmology have successfully revealed the accelerating expansion of the universe. However, as distance indicators used in measuring the expansion history of the universe and probing the nature of dark energy, these objects must pass more strict tests. We propose a K-s test to investigate if there exists any systematic bias when deriving the luminosity distances under the standard candle assumption. Two sampl.s. one comprising 71 high-redshift sNe Ia and the other, 44 nearby ones, are used in our investigation. We find that it is likely there exists a bias in the adopted sampl.s. which is probably caused by a systematic error, e.g. in the color parameter used in the luminosity calibration and a bias may be caused by the sN evolution or by varying properties of the dust surrounding the sNe Ia.

关键词： cosmology observations -- distance scale -- galaxies distances and redshifts -- methods statistical -- supernovae general

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study on denoising of continuous spectrum on-line monitoring signal of water quality with micro-reagents based on HHT

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Optoelectronics letters 2022年第2期18卷 115-121页

作者： lI wen lÜ Binbin FU Hao CAI Yongqing Institute of Mechanical and Electrical Engineering North China University of TechnologyBeijing 100144China

A continuous spectrum water quality on-line monitoring signal processing method based on Hilbert-Huang transform(HHT) is proposed in this paper, which combines the micro-reagent water quality on-line monitoring technology of sequential injection. The modulation signal and spectrum curve of each intrinsic mode function(IMF) component of the original.s.ectrum signal were obtained by empirical mode decomposition(EMD). The water sample data of different concentrations in the continuous spectrum on-line monitoring system was analyzed by the HHT model. The noise signal was excavated to realize the noise reduction processing, and the reconstruction of the continuous spectrum signal was realized after the noise reduction processing was completed. The research resul.s.show that this method can effectively reduce the noise of continuous spectrum signals according to different signal-to-noise characteristics of continuous spectrum, and has convenient use, fast processing speed, and high resolution in the time-frequency domain, which effectively improves the stability and accuracy of the micro-reagent continuous spectrum water quality on-line monitoring system.

关键词： signal spectrum continuous

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sTRUCTURE, MECHANICAl PROPERTIEs AND THERMAl.s.ABIlITY OF DIAMOND-lIKE CARBON FIl.s.PREPARED BY ARC ION PlATING

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Acta Metallurgica sinica(Engl.s. letters) 2005年第3期18卷 331-338页

作者： Y.s.Zou J.D.Zheng J.Gong C.sun R.F.Huang l.s.wen DivisionofsurfaceEngineeringofMaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China DivisionofsurfaceEngineeringofMaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China／／ShenyangResearchCenterforInterfacialMaterialsShenyang110016China

Diamond-like Carbon (DlC) fil.s.have been prepared on si(100) substrates by arc ion plating in conjunction with pulse bias voltage under H2 atmosphere. The depo sited fil.s.have been characterized by scanning electron microscopy and atomic f orce microscopy. The resul.s.show that the surface of the film is smooth and den se without any cracks, and the surface roughness is low. The bonding characteris tic of the fil.s.has been studied by X-ray photoelectron spectroscopy (XPs) and Raman spectroscopy. It shows the sp3 bond content of the film deposited at -200V is 26.7%. The hardness and el.s.ic modul.s.of the film determined by nanoindent ation technique are 30.8 and 250.1GPa, respectively. The tribological characteri stic of the fil.s.reveals that they have low friction coefficient and good wear- resistance. After deposition, the fil.s.have been annealed in the range of 350-7 00℃ for 1h in vacuum to investigate the thermal.s.ability. Raman spectra indica te that the ID/IG ratio and G peak position have few detectable changes below 50 0℃. Further increasing the annealing temperature, the hydrogen can be released, the structure rearranges, and the phase transition of sp3 configured carbon to sp2 configured carbon appears.

关键词： diamond-like carbon arc ion plating microstructure mechanical

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