Technical Physics最新文献_第2页

Modeling of Shock-Wave Loading of Magnesium Silicates on the Example of Forsterite 以 Forsterite 为例模拟硅酸镁的冲击波负载

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010262

K. K. Maevskii

引用次数: 0

Highly Sensitive Express Nonlinear Optical Diagnostics of the Crystalline State of Heterostructures Such as Sphalerite 对诸如闪锌矿等异质结构的结晶状态进行高灵敏度快报非线性光学诊断

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010389

M. F. Stupak, N. N. Mikhailov, S. A. Dvoretsky, S. N. Makarov, A. G. Yelesin, A. G. Verhoglyad

{"title":"Highly Sensitive Express Nonlinear Optical Diagnostics of the Crystalline State of Heterostructures Such as Sphalerite","authors":"M. F. Stupak, N. N. Mikhailov, S. A. Dvoretsky, S. N. Makarov, A. G. Yelesin, A. G. Verhoglyad","doi":"10.1134/s1063784224010389","DOIUrl":"https://doi.org/10.1134/s1063784224010389","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The characteristics of a highly sensitive express bench for nonlinear optical diagnosis of crystalline structures such as sphalerite by generation of the second harmonica are presented. The analysis of the possibilities of quantitative and qualitative characterization of the features of the crystalline parameters of the layers of heteroepitaxial structures CdxHg1 – xTe on substrates from GaAs with orientation (013) was carried out. The results were obtained by deviations of orientation in layers from the orientation of the substrate, which arose during the epitaxy, to determine the existence of stresses. The high sensitivity of the bench revealed the presence/absence of micro-particles with a disordered crystalline structure. Experimental results of reversible modification of the “in situ” crystalline state of CdxHg1 – xTe structures with short-term local radiation exposure of high power laser radiation are given. New experimental data have been presented showing that the components of the nonlineaic susceptibility tensor χxyz(ω) of the crystalline structure of CdxHg1 – xTe depend on composition and are an order of magnitude larger than similar components of tensor in CdTe and GaAs.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Coupled Quasiperiodic Generators Excited by External Force 由外力激发的两个耦合准周期发电机

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010249

A. P. Kuznetsov, Yu. V. Sedova, N. V. Stankevich

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Influence of the Resonant Interaction of Surface Magnetostatic Waves with Exchange Modes on the EMF Generation in YIG/Pt Structures 表面磁静电波与交换模式的共振相互作用对 YIG/Pt 结构中电磁场产生的影响

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010341

M. E. Seleznev, Yu. V. Nikulin, V. K. Sakharov, Yu. V. Khivintsev, A. V. Kozhevnikov, S. L. Vysotskiy, Yu. A. Filimonov

引用次数: 0

Design of a High-Resolution VLS Monochromator for Synchrotron Radiation 设计用于同步辐射的高分辨率 VLS 单色仪

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010365

A. N. Shatokhin, E. A. Vishnyakov, A. O. Kolesnikov, A. D. Nikolenko, E. N. Ragozin

引用次数: 0

Features of the Penetration of Elements of the Cumulative Jet into a Steel Barrier 累积射流元素穿透钢屏障的特征

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010225

V. I. Kolpakov, I. R. Kagarmanov, I. A. Semenov

{"title":"Features of the Penetration of Elements of the Cumulative Jet into a Steel Barrier","authors":"V. I. Kolpakov, I. R. Kagarmanov, I. A. Semenov","doi":"10.1134/s1063784224010225","DOIUrl":"https://doi.org/10.1134/s1063784224010225","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Based on numerical simulations carried out using numerical methods of continuum mechanics, the influence on the depth of craters, formed in steel barriers of various strengths, geometric and kinematic parameters of elongated cylindrical copper strikers, simulating elements of a cumulative jet, in the range from 0.3 to 8 km/s. For description the behavior of materials of the impactor and barrier, the model of a compressible elastic-plastic medium with a variable value of the yield strength. Determined that the classical hydro dynamic theory of the penetration of a cumulative jet into a barrier is not takes into account the effects of the inertial movement of the barrier after triggering separately taken element (aftereffect). The existence of three regimes is distinguished shock interaction-high-speed, when the elements behave like a liquid body, are worked out, but not inhibited; low speed, when the elements behave like solid body and are decelerated as a whole and intermediate, when the elements are decelerated and are deformed at the same time. It is shown that the braking mode of copper elements at high-speed impact on a steel armored barrier is realized at speeds smaller 0.8–1 km/s. It is shown that when interacting with an obstacle, high-speed fragmented cumulative jet, the total depth of armor penetration will be greater, than this is predicted by the classical hydrodynamic theory of penetration, and the more more, the higher the speed of the elements and the greater the distance between them on the one hand and less strength of the barrier on the other side.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Method of Studying the Flow of Miniature Cumulative Jet of Copper 研究微型累积铜射流流动的方法

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010286

N. V. Melekhin, A. M. Bragov, N. N. Berendeev, V. N. Chuvildeev, V. V. Balandin

引用次数: 0

Nanostructured Compositions Based on Polymeric Paintwork Materials and Environmentally Safe Biocides 基于聚合物涂料材料和环境安全型杀菌剂的纳米结构组合物

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010390

T. E. Sukhanova, A. I. Kosovskikh, M. E. Vylegzhanina, Yu. P. Belov, N. V. Lebedev

{"title":"Nanostructured Compositions Based on Polymeric Paintwork Materials and Environmentally Safe Biocides","authors":"T. E. Sukhanova, A. I. Kosovskikh, M. E. Vylegzhanina, Yu. P. Belov, N. V. Lebedev","doi":"10.1134/s1063784224010390","DOIUrl":"https://doi.org/10.1134/s1063784224010390","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstrac</h3>Composite coatings containing iodine- and bromine-containing compounds as biocides have been obtained on the basis of industrial paintwork materials. A number of composite coatings containing biocides – Nitroxynil, Ioxynil and 2,5-dibrom-4-nitrophenol, have been analyzed using a modified technique for assessing biological activity and toxicity for determining the survival rate of Artemia salina crustaceans. It was found that the compositions on the basis of paintwork materials with Nitroxynil show the greatest bioactivity. AFM study of the surface morphology of the developed coatings showed that the introduction of biocides leads to coating structuring at the nanolevel, with the strength of nanostructured coatings on impact decreases by 2–3 times, however, these values are 2 times higher than those of the reference sample – an industrial copper-containing antifouling paint. The obtained results can be used for further development of environmentally safe protective and antifouling polymer coatings and paintwork materials.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Methods for the Study and Control of Microplasma Processes in the Synthesis of Coatings 研究和控制涂层合成中微等离子体过程的方法

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010274

A. I. Mamaev, V. A. Mamaeva, Yu. N. Bespalova

引用次数: 0

Features of the Lighting Spectrum Influence on the Productivity and Biochemical Composition of Test Fruit and Leaf Vegetable Crops 光照光谱对果树和叶菜类作物产量和生化成分的影响

IF 0.7 4区物理与天体物理

Technical Physics Pub Date : 2024-09-02 DOI: 10.1134/s1063784224010237

T. E. Kuleshova, O. R. Udalova, I. T. Balashova, L. M. Anikina, P. Yu. Kononchuk, G. V. Mirskaya, V. I. Dubovitskaya, V. E. Vertebny, Yu. V. Khomyakov, G. G. Panova

{"title":"Features of the Lighting Spectrum Influence on the Productivity and Biochemical Composition of Test Fruit and Leaf Vegetable Crops","authors":"T. E. Kuleshova, O. R. Udalova, I. T. Balashova, L. M. Anikina, P. Yu. Kononchuk, G. V. Mirskaya, V. I. Dubovitskaya, V. E. Vertebny, Yu. V. Khomyakov, G. G. Panova","doi":"10.1134/s1063784224010237","DOIUrl":"https://doi.org/10.1134/s1063784224010237","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The work is devoted to the study of the photosynthetically active radiation spectral characteristics influence on the productivity and quality of lettuce and dwarf tomato adapted for protected ground. High pressure sodium lamps and LEDs emitting yellow light, pink light and close to sunlight spectrum were used as test options for plant illumination. Vegetable crops were grown under controlled conditions of intensive lightculture by thin-layer panoponics; the same irradiance was achieved in all variants. Using a light source simulating sunlight with a photosynthetic photon flux of 76 μmol m–2 s–1 in the 400–500 nm range, 130 μmol m–2 s–1 in 500–600 nm and 133 μmol m–2 s–1 at 600–700 nm made it possible to obtain an increase in productivity by 10% for lettuce and by 23% for tomato, and also led to an increase in the content of magnesium and iron in lettuce leaves and a higher content of carbohydrates, vitamin C, crude ash in tomato fruits compared to standard sodium lamps.","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0