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Reaction dynamics for photoproductions of baryon resonances

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ch.nese Physics C 2009年第12期33卷 1167-1174页

作者： A. hosaka T. hyodo D. Jido h.-ch. Kim h. Nagahiro S.I. Nam M. Oka S. Ozaki Rresearch.Center for Nuclear Physics Osaka University Ibaraki 567-0047 Japan Department of Physics Tokyo Institute of Technology Meguro 152-8551 Japan Yukawa Institute for Theoretical Physics Kyoto University Kyoto 606-8502 Japan Department of Physics Inha University Incheon 402-751 Republic of Korea Department of Physics Nara Women's University Nara 630-8506 Japan Department of Physics Chung-Yuan Christian University Chung-Li 32023 China

The study of exotic structure of hadrons is fully ach.eved when reaction dynamics of the associated hadron productions is well understood. We employ as the standard mech.nism the effective Lagrangian method and investigate several physical observables within the framework. The parameters are constrained by microscopic description of hadrons. We discuss photoproductions of kaon associated with the ground state A（1116） and its resonances A（1405） and A（1520）. In the former example we emphasize the meson cloud effect which.significantly renormalizes the phenomenological parameters, while in the latter we discuss the features of the standard method. Finally we discuss briefly the N（1535） for the study of ch.ral symmetry of baryons. production of ηπ associated with the nucleon resonance

关键词： photoproduction strangeness baryon resonances

Two-dimensional Dirac plasmon-polaritons in graphene,3D topological insulator and hybrid systems

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Light(Science & Applications) 2022年第11期11卷 2602-2616页

作者： ch.hun In un Jeong Kim h.unyong ch.i Department of Physics Freie Universitat BerlinBerlin 14195Germany Department of Physical ch.mistry Fritz-Haber-lInstitute of the Max-Planck-SocietyBerlin 14195Germany Department of Physics and Astronomy Seoul National UniversitySeoul 08826Republic of Korea Institute of Applied Physics Seoul National UniversitySeoul 08826Republic of Korea Advanced Sensor Laboratory Samsung Advanced Institute of TechnologySuwonGyeonggido 16419Republic of Korea

Collective oscillations of massless particles in two-dimensional(2D)Dirac materials offer an innovative route toward implementing atomically thin devices based on low-energy quasiparticle *** confinement of nearfield distribution on the 2D surface is essential to demonstrate extraordinary optoelectronic functions,providing means to shape the spectral response at the mid-infrared(IR)*** the dynamic polarization from the linear response theory has successfully accounted for a range of experimental observations,a unified perspective was stll elusive,connecting the state-of-the-art developments based on the 2D Dirac ***,we review recent works on graphene and three-dimensional(3D)topological insulator(TI)plasmon-polariton,where the mid-IR and terahertz(Thz)radiation experiences prominent confinement into a deep-subwavelength scale in a novel optoelectronic *** presenting general light-matter interactions between 2D Dirac plasmon and subwavelength quasiparticle excitations,we introduce various experimental tech.iques to couple the plasmonpolaritons with electromagnetic *** and optical controls over the plasmonic excitations reveal the hybridized plasmon modes in graphene and 3D Tl,demonstrating an intense near-field interaction of 2D Dirac plasmon within the highly-compressed *** findings can further be applied to invent optoelectronic biomolecular sensors,atomically thin photodetectors,and laser-driven light sources.

关键词： structure Dirac topological

Minimal Invasive Surgery for Esophageal Cancer

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The ch.nese-German Journal of Clinical Oncology 2004年第4期3卷 233-235页

作者： A. h. hlsch.r ch. Gutsch.w Department of Visceral- and Vascular Surgery University of CologneDepartment of Visceral- and Vascular Surgery University of Cologne Cologne GermanyCologne Germany

Thoracoscopic esophagectomy is only established in some centers and a?ords a cervical anasto- mosis because intrathoracic anastomosis as a routine is tech.ically too di?cult. Laparoscopic mobilisation of the stomach.(gastrolysis) is an important contribution for minimal invasive surgery of esophageal cancer. This procedure reduces the stress of the two cavity operation for the patient and allows the construction of a comparable gastric conduit like by open surgery. The tech.ique of laparoscopic gastrolysis as prepa- ration for transthoracic en bloc esophagectomy is described in detail and preliminary results are brie?y mentioned.

关键词： esophageal cancer minimal invasive surgery laparoscopy

NaBh<sub>4</sub>Sodalites, Synthesized by Modified Methods: (1) Autothermal Synthesis and (2) Crossover Reaction from Gel to Melt Flow

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Advances in ch.mical Engineering and Science 2017年第2期7卷 108-124页

作者： J.-ch. Buhl Institut für Mineralogie Leibniz Universit&auml t hannover Hannover Germany

NaBh4 sodalites were obtained by two new modified methods of crystallization: (1) autothermal synthesis and (2) crystallization with crossover from gel to melt flow in NaOh flux. Syntheses results were presented according to XRD, SEM and FTIR. Besides important features of both synthesis procedures product properties like crystal size and morphology were investigated. Spherical agglomerates of microcrystalline sodalite of composition Na7[AlSiO4]6Bh4(h2O)2 were already observed after 4 h without any external heating by the autothermal procedure. Sodalites of the same average composition but in form of agglomerated nanoparticles are crystallized after very short times (2 h 30’) by the crossover reaction from gel to melt flow. hydrogen release by heating was further studied for two selected samples with comparable composition from each.synthesis procedure. Total hydrogen release by hydrolysis reaction with the internal cage water was found during heating of the autothermal product in synthetic air up to 550°C. In contrast hydrogen release from the nanocrystalline sample of crossover synthesis was not completed when heated under the same conditions. These differences were discussed in terms of crystal size and an earlier loss of the internal water from the nanocrystals of the crossover

关键词： Modified Synthesis Autothermal Process Combined Synthesis Procedures Tailored Tetrahydroborate Sodalites

Malaria prevalence in north-eastern Nigeria:A cross-sectional study houben ch.(1*),Fleisch.ann h^2,Gǜckel M^3

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Asian Pacific Journal of Tropical Medicine 2013年第11期6卷 865-868页

作者： houben ch.Fleisch.ann h Gckel M Diagnostic Center MMM group & Specialist hospital Yola Hospital RoadP.M.B.2266YolaAdamawa.StateNigeria Medical Mission Institute Tropical MedicineHermann Schell Str 797074 WrzburgGermany helios Kliniken Sch.erin Wismarsche Str 393-39719049 SchwerinGermany

Objective:To assess the prevalence of malaria parasitemia in north-east Nigeria and to evaluate the measures for the prevention of ***:A village in north-eastern Nigeria was selected for the cross sectional study at the height of the rainy season in October 2011.A total of 550 inhabitants of a hamlet were recruited for this *** obtaining the consent individuals received a structured interview and were tested for malaria parasites in their blood *** testing positive for malaria were given a course of artemesinin-based combination therapy（ACT）.Results:A total of 497 inhabitants representing approximately 90 percent of the population participated:a quarter of the study group carried malaria parasitesexclusively Plasmodium falciparum（***）-representing a *** parasite rate（PfPR） of 24.5%.Besides,53/138 in the age group of 2 to ch.ldren tested positive for *** representing a PfPR2-10 value of 38.4%.Malaria control measures were used in just under a third（157/497） of this *** these measures 28/157（17.8%） still tested positive for ***:The malaria burden is overestimated for this region in north-east *** findings support an intermediate pattern of malaria *** 30%bed nets coverage for malaria control is well below the WhO estimates for 2011.

关键词： Malaria control Malaria endemicity Malaria prevalence Malaria transmission

Advanced Tech.ology forDecortication of Flax, hemp and other Bast Fibre Plants

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中国纺织经济 2004年第1期11卷 29-33页

作者： Munder,F. Fürll,ch. hempel,h. InstituteofAgriculturalEngineeringBomimD14476Potsdam Germany

Flax, linseed or hemp fibres can substitute wood, synthetic, carbon and glass fibres in a wide range of industnal products.A complete new mach.ne line for the processing of natural fibre plants was developed, which.includes all process stages from pickup and cutting of straw bales up to the cleaning of the final products, fibres and *** processed fibres have a fineness in the range from 2.5 to 15 tax. The length of the fibres is adjustable in the range from 50 to 200mm. These fibres can be shortened by additional cutting to a defined length from e.g. 4 to 8 *** applications of the fibres are the automotive industry, geo-texfiles, thermal blankets, fibrous insulating material and composites,building boards, coarse yarn, coarse textiles, and reinforcement of several composites and structural parts.

关键词：亚麻大麻栽培技术中国

3D Micromech.nical Modeling of Failure and Damage Evolution in Dual Phase Steel Based on a Real 2D Microstructure

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Acta Mech.nica Solida Sinica 2016年第1期29卷 95-110页

作者： M.R.Ayatollahi A.ch.Darabi h.R.ch.mani J.Kadkhodapour Fatigue and Fracture Lab. Center of Excellence in Experimental Solid Mechanics and DynamicsSchool of Mechanical EngineeringIran University of Science and Technology

A plate of dual phase steel was produced from low carbon steel with intercritical annealing treatment. Its optically determined surface microstructure was utilized to construct three different microstructural models. To describe the ductile damage in the ferritic matrix, the Gurson-Tvergaard-Needleman model was used with the failure in the martensite phase being ignored. The numerical results obtained for the mech.nism of void initiation and coalescence were compared with the experimental observations. The numerical results obtained from the randomly extruded 3D model showed a significantly better agreement with the experimental ones than those obtained from the 2D model or the uniformly extruded 3D model.

关键词： dual phase steel 3D model microstructure micromech.nical modeling GTN dam-age model

SCIENCE ORIGINATES IN PRACTICE; SCIENCE ARISES FROM AMONG ThE MASSES——ThE BANKRUPTCY OF ThE IDEALIST ThEORY OF “INNATE GENIUS” AS EVIDENCED IN ThE hISTORICAL RECORDS OF ch.NA’S DEVELOPMENT IN SCIENCE AND TEch.OLOGY

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Science in ch.na,Ser.A 1974年第5期 609-613页

作者：史群

Are man’s knowledge and talent a priori or a posteriori? Who are the makers of history, heroes or slaves? here lies the fundamental question of the struggle between the two world outlooks throughout several thousand years. It was by no means accidental that Lin Piao had picked up the rubbish idealist theory of 'innate genius' as a weapon to manufacture counter-revolutionary public opinion for usurping Party leadership and seizing state power; it was attributed to his class rootcause and historical root-cause. Lin Piao had sought help from the doctrine of Con-

关键词： INNATE GENIUS SCIENCE ARISES FROM AMONG ThE MASSES SCIENCE ORIGINATES IN PRACTICE ThE BANKRUPTCY OF ThE IDEALIST ThEORY OF AS EVIDENCED IN ThE hISTORICAL RECORDS OF ch.NA’S DEVELOPMENT IN SCIENCE AND TEch.OLOGY

Ballistic design and testing of a composite armour reinforced by CNTs suitable for armoured vehicles

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Defence Tech.ology（防务技术） 2024年第2期32卷 173-195页

作者： Evangelos ch.Tsirogiannis Evangelos Daskalakis Mohamed h.hassan Abdalla M.Omar Paulo Bartolo EODh SA Research and Development DepartmentLakkoma Chalkidikis63080Greece Sch.ol of Mech.nical Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological University639798Singapore

This paper is investigating the use of composite armour reinforced by nanomaterials, for the protection of light armoured(LAV) and medium armoured military vehicles(MAV), and the interaction between the composite materials and high-performance ballistic projectiles. Four armour materials, consisted of front hybrid fibre reinforced polymer cover layer, ceramic strike-face, fibre reinforced polymer intermediate layer and the metal matrix composite reinforced backplate, were manufactured and assembled by adhesive tech.ology. The proposed laminated protection system is suitable for armoured ground vehicles;however, it could be used as armour on ground, air and naval platforms. The design of the protection system, including material selection and thickness, was elaborated depending on the performance requirements of Level 4 + STANAG 4569 military standard(projectile 14.5 mm × 114 mm API B32) and especially on a design philosophy which.is analysed with the specifications. The backplate of this new composite is a hybrid material of Metal Matrix Composite(MMC) reinforced with carbon nanotubes(CNTs), manufactured with the use of powder metallurgy tech.ique. The composite backplate material was morphologically, mech.nically and ch.mically analysed. Results show that all plates are presenting high mech.nical properties and ballistic ch.racteristics, compared to commonly used armour plates. Real military ballistic tests according to AEP-STANAG 4569 were carried out for the total composite armour systems. After the ballistic tests, AA2024-CNT3 showed the best protection results, compared with the other plates(AA2024-CNT1 and AA2024-CNT2), with the projectile being unable to fully penetrate the composite plate.

关键词： Passive armour protection Protective armour Ballistic performance hybrid composites Vehicle protection