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InGaAs/GaAs量子链的光学特性研究

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物理学报 2008年第3期57卷 1908-1912页

作者：王宝瑞孙征徐仲英孙宝权姬扬 z. m. wang G.J. Salam. 中科院半导体研究所超品格国家重点实验室北京100083 Departm.nt of Physics University of Arkansas

研究了InGaAs/GaAs量子链的稳态和瞬态光谱特性,特别是载流子的动力学过程.实验发现荧光寿命有很强的探测能量依赖关系,荧光寿命随发光能量的增加而减小;实验还发现,当激发功率较小时,荧光寿命随激发功率增大而增大,当激发功率足够大时... 详细信息

研究了InGaAs/GaAs量子链的稳态和瞬态光谱特性,特别是载流子的动力学过程.实验发现荧光寿命有很强的探测能量依赖关系,荧光寿命随发光能量的增加而减小;实验还发现,当激发功率较小时,荧光寿命随激发功率增大而增大,当激发功率足够大时,荧光寿命趋于饱和.这些结果清楚地表明,在量子链结构中,参与发光的载流子之间存在明显的耦合和输运现象,进一步分析表明,这种输运主要是由于载流子沿量子链方向的耦合造成的.发光的偏振特性研究进一步证实了载流子沿量子链方向输运过程.

关键词： InGaAs/GaAs 量子点量子链光学特性载流子纳米结构

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量子链和量子点光学特性的比较研究

红外与毫米波学报 2008年第3期27卷 161-164,189页

作者：王宝瑞孙征徐仲英孙宝权姬扬 z.m.wang G.J.Salam. 中科院半导体研究所超晶格国家重点实验室北京100083 Departm.nt of Physics University of ArkansasArkansasUSA

比较研究了InGaAs/GaAs量子链和量子点的稳态和瞬态光学特性.实验发现,量子链的荧光寿命有很强的探测能量依赖关系,而量子点的荧光寿命随能量变化较小;量子链的荧光寿命随着激发功率迅速增加,高功率时趋于饱和,而量子点的荧光寿命随激... 详细信息

比较研究了InGaAs/GaAs量子链和量子点的稳态和瞬态光学特性.实验发现,量子链的荧光寿命有很强的探测能量依赖关系,而量子点的荧光寿命随能量变化较小;量子链的荧光寿命随着激发功率迅速增加,高功率时趋于饱和,而量子点的荧光寿命随激发功率变化缓慢;此外,量子链样品的荧光上升时间也比量子点的小得多.这些结果清楚表明,在量子链结构中,参与发光的载流子之间存在很强的耦合和输运.进一步分析表明,这种耦合作用主要发生在量子链方向.荧光的偏振特性进一步证实了这一点.

关键词： InGaAs/GaAs 量子点量子链光学性质

Transport m.chanism.in chem.cally reactive hybrid nanofluid flow containing gyrotactic m.cro-organism. over a curved oscillatory surface

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Applied m.them.tics and m.chanics(English Edition) 2025年第1期46卷 177-192页

作者： m.NAVEED m.Im.AN T.ASGHAR z.ABBAS Departm.nt of m.them.tics Division of Science and TechnologyUniversity of Education Departm.nt of m.them.tics The Islamia University of Bahawalpur

This paper exam.nes the transport analysis, including both heat transfer and m.ss transfer, in hybrid nanofluid flow containing gyrotactic m.croorganism. towards a curved oscillatory surface. The influence of m.gnetic fields is also inspected in term. of their physical characteristics. To depict the phenom.na of transport, m.dified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and hom.geneous chem.cal reactions are also incorporated. Utiliz.ng a curvilinear coordinate system. the flow problem.is form.lated as partial differential equations(PDEs)for m.m.ntum. concentration, m.croorganism.field, and energy. An analytical solution to the obtained flow equations is achieved utiliz.ng the hom.topy analysis m.thod(HAm..The effects of significant flow param.ters on the pressure and m.croorganism.fields, velocity, oscillation velocity, concentration, and tem.erature distributions are shown via graphs. Furtherm.re, the variations in skin friction, m.ss transfer rate, heat transfer rate, and local m.tile num.er due to different involved param.ters are presented in tables and are analyz.d in detail. Graphical results indicate that the curves of velocity and tem.erature fields are enhanced as the values of the solid volum. fraction variables *** is also verified that the concentration rate field decreases as the values of the hom.geneous reaction strength param.ter and the radius of curvature param.ter increase, and it increases with the Schm.dt num.er and the heterogeneous reaction strength *** outcom.s show a favorable response of the m.tile num.er to advanced values of the Peclet num.er, the Schm.dt num.er, the m.croorganism.difference param.ter, and the bio-convective Lewis num.er.

关键词： Peclet num.er

The Effect of Non-Contact Conditions in a Splinted Fixed Partial Denture on the Load Sharing m.chanism. A Finite Elem.nt Study

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Journal of Bionic Engineering 2012年第3期9卷 336-342页

作者： m. z. Bendjaballah Biom.dical Technology Departm.nt College of Applied Medical Sciences King Saud University Riyadh Saudi Arabia

A com.uter-aided design m.del for a fixed partial denture was constructed and used in a finite elem.nt analysis to study the overall load sharing m.chanism.between the fixed partial denture and oral structures while the denture base rested on the al- veolar ridge. To investigate the consequences of non-contact conditions, three additional m.dels were generated incorporating a uniform.clearance of 0.125 m., 0.25 m., and 0.5 m., respectively. A 100 N static load located at the free end of the prosthesis was applied while the distal portion of the jaw was set fixed. The results show that whilst releasing the ridge alm.st entirely, the presence of the clearance drastically increased the load on the splinting teeth. A pull-out force on the canine tooth of about 44 N was com.uted, accom.anied by a m.sio-distal m.m.nt of about 500 ***. The com.ination of which was sim.lar to the tooth extraction m.neuver perform.d by the dentist. In contrast, the second prem.lar was found to bear a push-in force of alm.st 115 N. The first m.lar, though barely solicited in the contact condition, becam. substantially loaded in non-contact conditions, which validates the choice of sacrificing three teeth to support the denture.

关键词： finite elem.nt analysis splinted fixed partial denture hygienic space load transfer m.chanism contact problem

Antithetical im.acts of deleterious LRP1B m.tations in non-squam.us and squam.us NSCLCs on predicting benefits from.im.une checkpoint inhibitor alone or with chem.therapy over chem.therapy alone: retrospective analyses of the POPLAR/OAK and CHOICE-01 trial

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Science China Life Sciences 2025年第1期68卷 249-262页

作者： Jinliang wang Wenyong z.ou Yu Xu Jianchun Duan Qiaoxia z.ou Guoqiang wang Leo Li Chunwei Xu Wenxian wang Shangli Cai z.ijie wang Jie wang Departm.nt of Oncology The Fifth Medical Center of Chinese PLA General Hospital Departm.nt of Thoracic Surgery Shanghai Chest HospitalSchool of MedicineShanghai Jiao Tong University Burning Rock Biotech CAm. Key Laboratory of Translational Research on Lung Cancer State Key Laboratory of Molecular OncologyDepartment of Medical OncologyNational Cancer Center/National Clinical Research Center for ancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical College Institute of Basic m.dicine and Cancer (IBm.) Chinese Academy of Sciences Departm.nt of Clinical Trial The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)

In non-sm.ll cell lung cancers,the non-squam.us and squam.us subtypes（nsqNSCLC and sqNSCLC） exhibit disparities in pathophysiology,tum.r im.unology,and potential genom.c correlates affecting responses to im.une checkpoint inhibitor（ICI）-based *** our inhouse training cohort（n=85）,the presence of the LRP1B deleterious m.tation（LRP1B-del） was associated with longer and shorter progression-free survival（PFS） on ICIs alone in nsqNSCLCs and sqNSCLCs,respectively(Pinteraction=0.008).These results were validated using a larger public ICI cohort(n=208,Pinteractionm.ltiplex im.unofluorescence staining revealed an association between LRP1B-del and increased and decreased num.ers of tum.r-infiltrating CD8+T cells in nsqNSCLCs（P=0.040） and sqNSCLCs（P=0.014）,*** the POPLAR/OAK cohort,nsqNSCLCs with LRP1B-del dem.nstrated im.roved PFS benefits from.atez.liz.m.b over docetaxel(haz.rd ratio（HR）=0.70,P=0.046),whereas this benefit was negligible in those without LRP1B-del（HR=1.05,P=0.64）.Conversely,sqNSCLCs without LRP1B-del benefited m.re from.atez.liz.m.b（HR=0.60,P=0.002） than those with LRP1B-del（HR=1.30,P=0.31）.Consistent results were observed in the in-house CHOICE-01 cohort,in which nsqNSCLCs with LRP1B-del and sqNSCLCs without LRP1B-del benefited m.re from.toripalim.b plus chem.therapy than from.chem.therapy alone(Pinteraction=0.008).This m.lti-cohort study delineates the antithetical im.acts of LRP1B-del in nsqNSCLCs and sqNSCLCs on predicting the benefits from.ICI alone or with chem.therapy over chem.therapy *** findings highlight the distinct clinical utility of LRP1B-del in guiding treatm.nt choices for nsqNSCLCs and sqNSCLCs,em.hasiz.ng the necessity for a detailed analysis based on pathological subtypes when investigating biom.rkers for cancer therapeutics.

关键词： non-squam.us NSCLC squam.us NSCLC LRP1B deleterious m.tations predictive biom.rker im.une checkpoint inhibitor

Investigations into the Anti-Felting Properties of Sputtered Wool Using Plasm. Treatm.nt

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Plasm. Science and Technology 2013年第1期15卷 37-42页

作者： S. m. BORGHEI S. SHAHIDI m. GHORANNEVISS z. ABDOLAHI Departm.nt of Physics Karaj Branch Islamic Azad University Departm.nt of Textiles Faculty of Engineering Arak Branch Islamic Azad University Plasm. Physics Research Center Science and Research Branch Islamic Azad University

In this research the effects of m.rdant and plasm. sputtering treatm.nts on the crystallinity and m.rphological properties of wool fabrics were investigated. The felting behavior of the treated sam.les was also studied. We used m.dder as a natural dye and copper sulfate as a m.tal m.rdant. We also used copper as the electrode m.terial in a DC m.gnetron plasm. sputtering device. The anti-felting properties of the wool sam.les before and after dying was studied, and it was shown that the shrink resistance and anti-felting behavior of the wool had been significantly im.roved by the plasm. sputtering treatm.nt. In addition, the percentage of crystallinity and the siz. of the crystals were investigated using an X-ray diffractom.ter, and a scanning electron m.croscope was used for m.rphological analysis. The am.unt of copper particles on the surface of the m.rdanted and sputtered fabrics was studied using the energy dispersive X- ray （EDX） m.thod, and the hydrophobic properties of the sam.les were exam.ned using the water drop test. The results show that with plasm. sputtering treatm.nt, the hydrophobic properties of the surface of wool becom. super hydrophobic.

关键词： anti-felting wool plasm. m.rdant sputtering

Active Force with Fuz.y Logic Control of a Two-Link Arm.Driven by Pneum.tic Artificial m.scles

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Journal of Bionic Engineering 2011年第4期8卷 474-484页

作者： H. Jahanabadi m. m.ilah m. z. m. z.in H. m. Hooi Departm.nt of System.Dynam.cs and Control Faculty of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru Skudai Johor Malaysia

In this paper, the practicality and feasibility of Active Force Control （AFC） integrated with Fuz.y Logic（AFCAFL） applied to a two link planar arm.actuated by a pair of Pneum.tic Artificial m.scle （PAm. is investigated. The study em.hasiz.s on the application and control of PAm.actuators which m.y be considered as the new generation of actuators com.rising fluidic m.scle that has high-tension force, high power to weight ratio and high strength in spite of its drawbacks in the form.of high nonlinearity behaviour, high hysteresis and tim. varying param.ters. Fuz.y Logic （FL） is used as a technique to estim.te the best value of the inertia m.trix of robot arm.essential for the AFC m.chanism.that is com.lem.nted with a conventional Propor- tional-Integral-Derivative （PID） control at the outerm.st loop. A sim.lation study was first perform.d followed by an experi- m.ntal investigation for validation. The experim.ntal study was based on the independent joint tracking control and coordinated m.tion control of the arm.in Cartesian or task space. In the form.r, the PAm.actuated arm.is com.anded to track the prescribed trajectories due to harm.nic excitations at the joints for a given frequency, whereas for the latter, two sets of trajectories with different loadings were considered. A practical rig utiliz.ng a Hardware-In-The-Loop Sim.lation （HILS） configuration was developed and a num.er of experim.nts were carried out. The results of the experim.nt and the sim.lation works were in good agreem.nt, which verified the effectiveness and robustness of the proposed AFCAFL schem. actuated by PAm.

关键词： pneum.tic artificial m.scle active force control fuz.y estim.tor hardware-in-the-loop sim.lation

m.le reproductive suppression： not a social affair

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Current z.ology 2017年第5期63卷 573-579页

作者： z. Valentina z.z.RI Andrea JESSEN Joris m. KOENE Departm.nt of Ecological Science--Anim.l Ecology VU University Amsterdam De Boelelaan 1085 1081 HVAmsterdam The Netherlands

In the anim.l kingdom.there are countless strategies via which m.les optim.z. their reproductivesuccess when faced with m.le-m.le com.etition. These m.le strategies typically fall into two m.incategories： pre- and post-copulatory com.etition. Within these 2 categories, a set of behaviors,referred to as reproductive suppression, is known to cause inhibition of reproductive physiologyand/or reproductive behavior in an otherwise fertile individual. What becom.s evident when con-sidering exam.les of reproductive suppression is that these strategies conventionally encom.assreproductive interference strategies that occur between m.m.ers of a hierarchical social ***, m.chanism. aim.d at im.airing a com.etitor＇s reproductive output are also present innon-social anim.ls. Yet, current thinking em.hasiz.s the im.ortance of sociality as the prim.rydriving force of reproductive suppression. Therefore, the question arises as to whether there is anactual difference between reproductive suppression strategies in social anim.ls and equivalentpre-copulatory com.etition strategies in non-social anim.ls. In this perspective paper we explore abroad taxonom.c range of species whose individuals do not repeatedly interact with the sam. indi-viduals in networks and yet, depress the fitness of rivals. Exam.les like alteration of m.le repro-ductive physiology, fem.le m.m.cry, rival sperm.tophore destruction, and cem.nting the rival＇sgenital region in non-social anim.ls, highlight that m.le pre-copulatory reproductive suppressionand m.le pre-copulatory com.etition overlap. Finally, we highlight that a distinction between m.lereproductive interference in anim.ls with and without a social hierarchy m.ght obscure im.ortantsim.larities and does not help to elucidate why different proxim.te m.chanism. evolved. We there-fore em.hasiz. that m.le reproductive suppression need not be restricted to social anim.ls.

关键词： indirect sperm transfer, offensive strategies, m.le pre-copulatory com.etition, m.le reproductive suppression, repro-ductive strategies.

m.chanism.of inflam.atory response and therapeutic effects of stem.cells in ischem.c stroke:current evidence and future perspectives

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Neural Regeneration Research 2025年第1期20卷 67-81页

作者： Yubo wang Tingli Yuan Tianjie Lyu Ling z.ang m.ng wang z.iying He Yongjun wang z.xiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Shanghai Engineering Research Center of Stem.Cells Translational m.dicine ShanghaiChina National Center for Healthcare Quality m.nagem.nt in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Institute for Regenerative m.dicine Shanghai East HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghaiChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina

Ischem.c stroke is a leading cause of death and disability worldwide,with an increasing trend and tendency for onset at a younger ***,in particular,bears a high burden of stroke *** recent years,the inflam.atory response after stroke has becom. a research hotspot:understanding the role of inflam.atory response in tissue dam.ge and repair following ischem.c stroke is an im.ortant direction for its *** review sum.ariz.s several m.jor cells involved in the inflam.atory response following ischem.c stroke,including m.croglia,neutrophils,m.nocytes,lym.hocytes,and ***,we have also highlighted the recent progress in various treatm.nts for ischem.c stroke,particularly in the field of stem.cell ***,understanding the com.lex interactions between inflam.ation and ischem.c stroke can provide valuable insights for developing treatm.nt strategies and im.roving patient *** cell therapy m.y potentially becom. an im.ortant com.onent of ischem.c stroke treatm.nt.

关键词： cell therapy im.une cell inflam.atory ischem.c stroke stem.cell