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role of quantum paths in generation of attosecond pulses

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Chinese Physics B 2020年第10期29卷 276-281页

作者： m r Sami A Shahbaz Depar.m.nt of Physics Government College UniversityP.O.Box 54000 LahorePakistan

We investigate the role of core potential in high ionization potential systems on high harmonic generation (HHG) spectra and obtain attosecond pulses. In our scheme, we use a standard soft core potential to model high ionization potential systems and irradiated these systems with fixed laser par.m.ters. We observe the role of these systems on all the three steps involved in HHG process including ionization, propagation and recombination. In our study, the results illustrate that for high ionization potential systems, the HHG process is more sensitive to the ionization probability compared to the recombination amplitude. We also observe that due to the stronger core potential, small oscillations of the electrons during the propagation do not contribute to the HHG spectr.m. which implies the dominance of only long quantum paths in the HHG spectr.m. Our results, for attosecond pulse generation, show that long quantum path electrons are responsible for the supercontinuum region near the cutoff, which is suitable for the extraction of a single attosecond pulse in this region.

关键词： high-order harmonic generation attosecond pulses quantum paths strong nuclear potential

Solution‑Processed Thin Film Transparent Photovoltaics:Present Challenges and Future Development

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Nano-micro Letters 2025年第2期17卷 566-600页

作者： Tianle Liu munerah m.S.Almutairi Jie ma Aisling Stewart Zhaohui Xing mengxia Liu Bo Hou Yuljae Cho Um-SJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Physics and Astronomy Cardiff UniversityCardiff CF243AAWalesUK Depar.m.nt of Electrical and Computer Engineering Yale UniversityNew HavenCT 06511USA Energy Sciences Institute Yale UniversityWest HavenCT 06516USA Future Photovoltaics research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Electrical energy is essential for.m.dern society to sustain economic *** soaring demand for the electrical energy,together with an awareness of the environmental impact of fossil fuels,has been driving a shift towards the utilization of solar ***,traditional solar energy solutions often require extensive spaces for a panel installation,limiting their practicality in a dense urban *** overcome the spatial constraint,researchers have developed transparent photovoltaics(TPV),enabling windows and facades in vehicles and buildings to generate electric *** TPV advancements are focused on improving both transparency and power output to rival commercially available silicon solar *** this review,we first briefly introduce wavelength-and non-wavelengthselective strategies to achieve *** of merit and theoretical limits of TPVs are discussed to comprehensively understand the status of current TPV *** we highlight recent progress in different types of TPVs,with a particular focus on solution-processed thin-film photovoltaics(PVs),including colloidal quantum dot PVs,metal halide perovskite PVs and organic *** applications of TPVs are also reviewed,with emphasis on agrivoltaics,smart windows and ***,current challenges and future opportunities in TPV research are pointed out.

关键词： Transparent semiconductors Solution-processable transparent solar cell Emerging solar cell materials Buildingintegrated photovoltaics

A two-configuration study on the photodetachment cross-section for the 3σ_u channel of F_2^-

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Science China mathematics 1997年第4期40卷 432-435页

作者：孙卫国 r.m. Pitzer C.W. mcCurdyLawrence Livermore National Laboratory P.O.Box 5509 L-561 Livermore CA 94550 U.S.A. Depar.m.nt of Applied Chemistry Sichuan Union University Chengdu 610065 China Depar.m.nt of Chemistry Ohio State University Columbus Ohio 43210 U.S.A.

An unusual resonance feature of the photodetachment cross-section for the 3σu channel of F2- observed in the early static-exchange study is confirmed by using correlated target (F2) wavefunctions determined by configuration interaction (CI). The magnitude of the cross-sections is lowered fr.m.that in earlier calculation by the potential of the correlated target.

关键词： resonance cross-section photodetachment configuration-interaction.x

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经济增长论文集

Oblique collisional effects of dust acoustic waves in unmagnetized dusty plasma

丛书名：诺贝尔经济学奖获奖者著作丛书

1989年

作者：（美）r.m.索罗平新乔译

本书收集了有关经济增长的论文文集内容

ISBN: (数字)7563800573

ISBN: (纸本)7563800573

本书收集了有关经济增长的论文文集内容

关键词：经济-增长

来源：汇雅图书（南通市图书馆... 评论

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Chinese Physics B 2020年第6期29卷 304-313页

作者： m S Alam m r Talukder Depar.m.nt of mathematics Chittagong University of Engineering and TechnologyChittagong-4349Bangladesh Plasma Science and Technology Laboratory Department of Electrical and Electronic EngineeringUniversity of RajshahiRajshahi-6205Bangladesh

Effects of oblique collisions of the dust acoustic(DA)waves in dusty plasma are studied by considering unmagnetized fully ionized *** plasma consists of inertial warm negatively charged massive dusts,positively charged dusts,superthermal kappa distributed electrons,and isothermal *** extended Poincaré–Lighthill–Kuo(e PLK)method is employed for the drivation of two-sided Korteweg–de Vries(KdV)equations(KdVEs).The Kd V soliton solutions are derived by using the hyperbolic secant *** effects of superthermality index of electrons,temperature ratio of isothermal ion to electron,and the density ratio of isothermal ions to negatively charged massive dusts on nonlinear coefficients are *** effects of oblique collision on amplitude,phase shift,and potential profile of right traveling solitons of DA waves are also *** study reveals that the new nonlinear wave structures are produced in the colliding region due to head-on collision of the two counter propagating DA *** nonlinearity is found to decrease with the increasing density ratio of ion to negative dust in the critical *** phase shifts decrease(increase)with increasing the temperature ratio of ion to electron(κe).The hump(compressive,κerarefactive,κe>κec)solitons are produced depending on the angle(θ)of oblique collision between the two waves.

关键词： ion acoustic wave dusty plasma kappa distribution ePLK method hyperbolic secant method

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一所培养哲学家的学校——牛津的哲学教育

世界哲学 2013年第1期 133-139页

作者： r.m.黑尔[英] 张留华(译) 陈波(校) 不详华东师范大学哲学系

本文把牛津等英国大学做哲学的方式与德国所谓的哲学研究进行比较，并论证：由于英国现存的一系列特殊的教育体制，使得德国所流行的那些做法不可能在英国得到鼓励。譬如，牛津大学实行导学制，对学生做每周至少一次耳提面命式的指导；... 详细信息

本文把牛津等英国大学做哲学的方式与德国所谓的哲学研究进行比较，并论证：由于英国现存的一系列特殊的教育体制，使得德国所流行的那些做法不可能在英国得到鼓励。譬如，牛津大学实行导学制，对学生做每周至少一次耳提面命式的指导；校方对教学很重视，把教学而不是写作作为教师的主要职责；教师的职位很有保障，只要完成教学任务，对发表作品不做什么要求；写作和发表作品是研究兴趣、自我激励和思想成熟的自然后果；如此等等。总之，在英国大学，哲学师生之间、同事之间共享的不是一组哲学信条，而是一套学术标准。与其说牛津大学是一所传播哲学知识的学校，不如说是一所培养哲学家的学校。

关键词：哲学教育牛津学德国哲学日常语言哲学

Advancing healthcare through laboratory on a chip technology:Transforming microorganism identification and diagnostics

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World Journal of Clinical Cases 2025年第3期13卷 9-19页

作者： Carlos m Ardila Depar.m.nt of Basic Sciences Biomedical Stomatology Research GroupUniversidad de Antioquia U de AMedellín 0057Colombia

In a recent case report in the World Journal of Clinical Cases,emphasized the crucial role of rapidly and accurately identifying pathogens to optimize patient treatment ***-on-a-chip(LOC)technology has emerged as a transformative tool in health care,offering rapid,sensitive,and specific identification of *** editorial provides a comprehensive overview of LOC technology,highlighting its principles,advantages,applications,challenges,and future *** studies fr.m.the field have demonstrated the practical benefits of LOC devices in clinical diagnostics,epidemiology,and food *** studies have underscored the superiority of LOC technology over traditional methods,showcasing improvements in speed,accuracy,and *** future integration of LOC with biosensors,artificial intelligence,and data analytics pr.m.ses further innovation and *** call to action emphasizes the importance of continued research,investment,and adoption to realize the full potential of LOC technology in improving healthcare outcomes worldwide.

关键词： Laboratory-on-a-chip microorganism identification Diagnostics Point-ofcare testing Biosensors

Advanced Functional Electr.m.gnetic Shielding materials:A review Based on micro‑Nano Structure Interface Control of Biomass Cell Walls

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Nano-micro Letters 2025年第1期17卷 98-134页

作者： Yang Shi mingjun Wu Shengbo Ge Jianzhang Li Anoud Saud Alshammari Jing Luo mohammed A.Amin Hua Qiu Jinxuan Jiang Yazeed m.Asiri runzhou Huang Hua Hou Zeinhom m.El‑Bahy Zhanhu Guo Chong Jia Kaimeng Xu Xiangmeng Chen Co‑Innovation Center of Efficient Processing and Utilization of Forest resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037People’s Republic of China State Key Laboratory of Efficient Production of Forest resourced Beijing Forestry UniversityQinghua East Road 35Haidian DistrictBeijing 100083People’s Republic of China Depar.m.nt of Physics Faculty of Sciences‑ArarNorthern Border UniversityArar 91431Saudi Arabia Depar.m.nt of Chemistry College of ScienceTaif UniversityP.O.Box 1109921944 TaifSaudi Arabia Shaanxi Key Laboratory of macr.m.lecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024People’s Republic of China Depar.m.nt of Chemistry Faculty of ScienceAl-Azhar UniversityNasr CityCairo 11884Egypt Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products International Joint Research Center for Biomass MaterialsSouthwest Forestry UniversityKunming 650224People’s Republic of China School of Science Henan Agricultural UniversityZhengzhou 450002People’s Republic of China

research efforts on electr.m.gnetic interference(EmI)shielding materials have begun to converge on green and sustainable biomass *** materials offer numerous advantages such as being lightweight,porous,and *** to their porous nature,interfacial compatibility,and electrical conductivity,biomass materials hold significant potential as EmI shielding *** concerted efforts on the EmI shielding of biomass materials have been reported,this research area is still relatively new compared to traditional EmI shielding *** particular,a more comprehensive study and summary of the factors influencing biomass EmI shielding materials including the pore structure adjustment,preparation process,and micro-control would be *** preparation methods and characteristics of wood,bamboo,cellulose and lignin in EmI shielding field are critically discussed in this paper,and similar biomass EmI materials are summarized and *** composite methods and fillers of various biomass materials were *** paper also highlights the mechanism of EmI shielding as well as existing prospects and challenges for development trends in this field.

关键词： Biomass materials Electr.m.gnetic interference shielding micro-nano structure interface control Conductivity

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焊件的小尺寸与大尺寸试验的区别

锅炉技术 1991年第4期22卷 16-27页

作者： r.m.丹尼斯周维愚

本文目的是研究小寸尺和大尺寸焊缝金属试验之间行为的区别。为此,需把拉伸加载焊件中断裂裂纹驱动力与施加应变及相应的焊缝金属断裂阻力曲线性能联系起来。结论是:在规定焊缝金属韧性要求时,有关焊件中施加变形的分配及焊缝金属高匹... 详细信息

本文目的是研究小寸尺和大尺寸焊缝金属试验之间行为的区别。为此,需把拉伸加载焊件中断裂裂纹驱动力与施加应变及相应的焊缝金属断裂阻力曲线性能联系起来。结论是:在规定焊缝金属韧性要求时,有关焊件中施加变形的分配及焊缝金属高匹配等级的数据是关键因素。理论分析与实验数据表明,偶尔的低焊缝金属韧性与焊缝金属屈服强度对母材高匹配无关。最重要的是若焊缝金属屈服强度对母材高匹配时,与母材相比,允许放宽对焊缝金属韧性的要求。

关键词：焊件尺寸试验