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Investigating the Effect of Plasma Treatment and Surfactants on Acid Dyeing of Rabbit Skins 血浆处理及表面活性剂对兔皮酸性染色的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700756
G. G. Lutfullina, V. A. Sysoev, A. R. Garifullina, E. A. Valeeva, I. V. Krasina, M. F. Shaekhov
{"title":"Investigating the Effect of Plasma Treatment and Surfactants on Acid Dyeing of Rabbit Skins","authors":"G. G. Lutfullina,&nbsp;V. A. Sysoev,&nbsp;A. R. Garifullina,&nbsp;E. A. Valeeva,&nbsp;I. V. Krasina,&nbsp;M. F. Shaekhov","doi":"10.1134/S1063785026700756","DOIUrl":"10.1134/S1063785026700756","url":null,"abstract":"<p>The combined effect of plasma treatment and a synthesized nonionic surfactant—KTDA from tall oil fatty acids—on the quality of dyeing rabbit skins with acid dyes was studied. The modes of preliminary plasma treatment (<i>U</i> = 1.0–1.5 kV, <i>I</i> = 0.3 A, <i>t</i> = 5 min, <i>G</i> = 0.04 g/s, argon as the plasma-forming gas) have been determined, which achieve the best results in terms of uniformity and intensity of coloring along the height and area of the hair, and in terms of selectability of the dye from solutions—from 86 to 90%. The effectiveness of a technology combining plasma treatment with subsequent dyeing of rabbit skins using surfactants as levelling agents has been proven.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"294 - 297"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752275","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
Doping Oxide Films and Forming Oxynitride Films in a Stream of a Low-Temperature Nitrogen Plasma 在低温氮等离子体流中掺杂氧化膜和形成氮化氧膜
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700598
M. Kh. Gadzhiev, A. E. Muslimov, M. V. Il’ichev, D. I. Yusupov, A. S. Tyuftyaev
{"title":"Doping Oxide Films and Forming Oxynitride Films in a Stream of a Low-Temperature Nitrogen Plasma","authors":"M. Kh. Gadzhiev,&nbsp;A. E. Muslimov,&nbsp;M. V. Il’ichev,&nbsp;D. I. Yusupov,&nbsp;A. S. Tyuftyaev","doi":"10.1134/S1063785026700598","DOIUrl":"10.1134/S1063785026700598","url":null,"abstract":"<p>The effect of a low-temperature high-enthalpy nitrogen plasma generated by a dc plasma torch on oxide and metallic films has been studied. It is shown that, using the nitrogen plasma treatment, nitrogen-doped ZnO films can be obtained. A method for forming AlN<sub><i>x</i></sub>O<sub><i>y</i></sub> and TiN<sub><i>x</i></sub>O<sub><i>y</i></sub> oxynitride films on Al and Ti metallic films on sapphire substrate using a nitrogen plasma stream in an open atmosphere is proposed.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"322 - 324"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751839","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
Evaluation of the Variability of Measurement Processes in Control of Wear of Crankshaft Jack Diameters 曲轴千斤顶直径磨损控制中测量过程可变性的评价
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700823
N. Zh. Shkaruba
{"title":"Evaluation of the Variability of Measurement Processes in Control of Wear of Crankshaft Jack Diameters","authors":"N. Zh. Shkaruba","doi":"10.1134/S1063785026700823","DOIUrl":"10.1134/S1063785026700823","url":null,"abstract":"<p>The article discusses a methodology for collecting and processing measurement information on the main static characteristics used to assess the quality and acceptability of measurement processes in relation to repair production. When assessing the convergence and reproducibility of the measurement process, the dispersion method was used, since this method allows for a more detailed analysis. The methodology for assessing the quality of measurements allows us to determine the acceptability of the methods and measuring instruments recommended in regulatory documentation. As a result of the study, it was found that the greatest contribution to variability of the process of measuring the diameters of worn crankshaft journals is made by sample variability. The second greatest influence on the variability the measuring process is exerted by measuring instruments.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"382 - 386"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751924","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
Physical and Mathematical Modeling of the Phase Transition of a Composite Body during Layer-by-Layer Laser Melting 激光逐层熔化过程中复合材料相变的物理和数学建模
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700586
A. V. Babaitsev, S. A. Kolesnik, A. S. Novikov
{"title":"Physical and Mathematical Modeling of the Phase Transition of a Composite Body during Layer-by-Layer Laser Melting","authors":"A. V. Babaitsev,&nbsp;S. A. Kolesnik,&nbsp;A. S. Novikov","doi":"10.1134/S1063785026700586","DOIUrl":"10.1134/S1063785026700586","url":null,"abstract":"<p>The work is devoted to modeling the phase transition in a composite body during layer-by-layer laser melting. Evaluation of the phase transition is extremely important when selecting modes for layer-by-layer laser melting technology. Incomplete phase transition of the powder composition leads to the appearance of significant defects: lack of melting, pores, and deviations of geometry from the original geometry. The simulation is carried out by solving a nonstationary heat conduction problem for a two-layer plate under the influence of a heat flow, taking into account the phase transition. The calculation is carried out for the most common component—steel. Various thermal conditions are analyzed.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 5","pages":"203 - 207"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752099","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
Effect of a Nonequilibrium Low-Temperature Plasma on the Structure of Fish Skin Leather 非平衡低温等离子体对鱼皮结构的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S106378502670077X
G. R. Rakhmatullina, V. P. Tikhonova, R. F. Akhverdiyev, G. I. Garipova, D. K. Nizamova, M. F. Shaekhov
{"title":"Effect of a Nonequilibrium Low-Temperature Plasma on the Structure of Fish Skin Leather","authors":"G. R. Rakhmatullina,&nbsp;V. P. Tikhonova,&nbsp;R. F. Akhverdiyev,&nbsp;G. I. Garipova,&nbsp;D. K. Nizamova,&nbsp;M. F. Shaekhov","doi":"10.1134/S106378502670077X","DOIUrl":"10.1134/S106378502670077X","url":null,"abstract":"<p>It has been established that a nonequilibrium low-temperature plasma is an effective tool for influencing fish skin leather and leading to structural changes. The structural modification has been estimated both by indirect indicators (welding temperature and tensile strength) and directly by changes in the skin pore size.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"288 - 290"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752051","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
Treatment of the Plasma High-Frequency Capacitive (HFC) Discharge of the Carbon-Containing Gas as a Method of Imparting to the Textile Materials the Hydrophobic Properties 含碳气体等离子体高频电容放电处理对纺织材料疏水性能的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700677
A. A. Azanova, L. N. Abutalipova, L. G. Khisamiyeva
{"title":"Treatment of the Plasma High-Frequency Capacitive (HFC) Discharge of the Carbon-Containing Gas as a Method of Imparting to the Textile Materials the Hydrophobic Properties","authors":"A. A. Azanova,&nbsp;L. N. Abutalipova,&nbsp;L. G. Khisamiyeva","doi":"10.1134/S1063785026700677","DOIUrl":"10.1134/S1063785026700677","url":null,"abstract":"<p>The article shows the possibility of using of the plasma high-frequency capacitive discharge of the carbon-containing gas for imparting hydrophobic properties to the surface of textile materials based on hydrophilic fibers, specifically cotton. The technical propane-butane (PBT) and additionally argon were used as a plasma-forming agent. It has been found that the single treatment makes it possible to increase the water resistance of the samples by 3 times, the contact angle by 18%, the air permeability and the mechanical properties (tensile strength, flexural rigidity) is practically unchanged. The stability of the obtained effect of hydrophobization to the effect of washing was studied.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"329 - 331"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752274","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
Improving the Backlight Compensation Method in Optical 3D Scanning Systems for Livestock Buildings Based on a Python Algorithmic Implementation 基于Python算法实现的畜舍光学三维扫描系统背光补偿方法改进
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700549
D. A. Moskvichev
{"title":"Improving the Backlight Compensation Method in Optical 3D Scanning Systems for Livestock Buildings Based on a Python Algorithmic Implementation","authors":"D. A. Moskvichev","doi":"10.1134/S1063785026700549","DOIUrl":"10.1134/S1063785026700549","url":null,"abstract":"<p>This paper examines the physical mechanisms of interference during optical 3D scanning under conditions of intense stray light typical of livestock buildings. A refined physical model of noise generation in the signal from time-of-flight cameras has been developed, taking into account the scattering anisotropy in biological tissues and the influence of thin wet films on the surface of objects. Based on this model, a combined method for backlight compensation has been proposed that combines spectral selection (operating wavelength of 940 nm), synchronous detection with adaptive phase adjustment, and algorithmic correction by solving the inverse scattering problem in the diffusion approximation. The method is implemented as a modular software package in Python, optimized for operation on embedded computers. Experimental studies on a cow-udder simulator under combined illumination conditions (solar simulator + LED lighting) demonstrated a 63% reduction in the root-mean-square depth estimation error and a 3.3-fold increase in the signal-to-noise ratio from 8.2 to 18.7 dB, compared to traditional spectral filtering. The average processing time for a single 224 × 171 pixel frame was 85 ms on a Raspberry Pi 5 single-board computer, confirming the method’s applicability to real-time systems.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 5","pages":"242 - 248"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751838","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
Intensifying the Microfiber Dyeing Process with Disperse Dyes by Plasma Modification 等离子体改性分散染料强化超细纤维染色工艺
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700689
M. V. Antonova, F. I. Mavlyudova, I. V. Krasina
{"title":"Intensifying the Microfiber Dyeing Process with Disperse Dyes by Plasma Modification","authors":"M. V. Antonova,&nbsp;F. I. Mavlyudova,&nbsp;I. V. Krasina","doi":"10.1134/S1063785026700689","DOIUrl":"10.1134/S1063785026700689","url":null,"abstract":"<p>The effect of the plasma modification on dyeing of textile materials made from two-component yarns with disperse dyes has been studied. The experimental data confirming the increased efficiency and quality of dyeing after the plasma processing of microfibers are reported. Changes in color fastness to dry and wet rubbing, as well as the fastness after multiple washings, have been examined. It is shown that the plasma processing makes it possible to reduce the amount of dye used while maintaining the high dye quality.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"340 - 343"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751848","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
The Influence of the Concentration of Liquid Glass Solution on the Formation of Hollow SiO2 Particles with Plasma-Electrolyte Spraying 液相玻璃溶液浓度对等离子体-电解质喷涂SiO2中空颗粒形成的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700719
L. N. Kashapov, R. N. Kashapov, N. F. Kashapov
{"title":"The Influence of the Concentration of Liquid Glass Solution on the Formation of Hollow SiO2 Particles with Plasma-Electrolyte Spraying","authors":"L. N. Kashapov,&nbsp;R. N. Kashapov,&nbsp;N. F. Kashapov","doi":"10.1134/S1063785026700719","DOIUrl":"10.1134/S1063785026700719","url":null,"abstract":"<p>The aim of the work is to evaluate the influence of the concentration of a liquid glass solution (Na<sub>2</sub>O·<i>n</i>SiO<sub>2</sub>) on the parameters of plasma-electrolyte spraying and the morphology of hollow SiO<sub>2</sub> microspheres. Solutions with SiO<sub>2</sub> concentration of 0.1, 0.5, 1.0, and 1.5 mol/L were used simultaneously as an electrolyte and a source of silica. The synthesis was carried out at atmospheric pressure in a tip-ring cell at a constant voltage of 400 V for 10 min, followed by washing and drying of the precipitate. The morphology was analyzed using scanning electron microscopy; size statistics were determined for at least 200 particles for each mode, and wall thickness was determined for 30–50 shell fractures. It has been shown that increasing the concentration leads to an increase in the average particle diameter from 4.5 ± 1.8 to 7.0 ± 2.0 μm and a thickening of the shell from 50 ± 10 to 180 ± 30 nm. The proportion of destroyed shells has a minimum in the range of 0.5–1.0 mol/L (15 ± 4 and 10 ± 3%, respectively) and increases both at insufficient and at excessively high concentrations. The optimal range of liquid glass concentrations for obtaining predominantly solid hollow particles is 0.5–1.0 mol/L SiO<sub>2</sub>.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"336 - 339"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751975","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
The Influence of Plasma Treatment on the Tribotechnical and Physicomechanical Characteristics of Leather Materials for the Interior Surface of Footwear 等离子体处理对鞋履内表面皮革材料摩擦学和物理力学特性的影响
IF 0.8 4区 物理与天体物理
Technical Physics Letters Pub Date : 2026-08-15 DOI: 10.1134/S1063785026700781
N. V. Tikhonova, T. V. Zhukovskaya
{"title":"The Influence of Plasma Treatment on the Tribotechnical and Physicomechanical Characteristics of Leather Materials for the Interior Surface of Footwear","authors":"N. V. Tikhonova,&nbsp;T. V. Zhukovskaya","doi":"10.1134/S1063785026700781","DOIUrl":"10.1134/S1063785026700781","url":null,"abstract":"<p>The possibility of targeted regulation of the friction coefficient of cattle-hide lining leather using nonequilibrium low-temperature plasma treatment is considered. The target ranges of the friction coefficient for the forepart (0.30–0.40) and heel (0.55–0.65) zones of the insole with a natural lining leather top layer are substantiated. A method of two-stage sequential plasma treatment has been experimentally confirmed, allowing to achieve the required µ values and improve the hygienic properties of the material.</p>","PeriodicalId":784,"journal":{"name":"Technical Physics Letters","volume":"52 6","pages":"284 - 287"},"PeriodicalIF":0.8,"publicationDate":"2026-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751919","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
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