Materials Literature
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In light sources, longitudinal beam coupling impedance can deteriorate performance through bunch lengthening or increased longitudinal emittance due to the microwave instability. Simulation estimates are therefore required to devise the appropriate counter-measures if necessary. The main contributors to the longitudin…
Aquesta tesi es basa en el desenvolupament (sintesi) de diferents nanomaterials per a la seva aplicacio com a materials adsorbents per a l'eliminacio de contaminants en aigua (anions inorganics, metalls pesats i pesticides) i per l'adsorcio de gas meta. El desenvolupament dels diferents materials s'ha basat en una ext…
Environment-friendly demulsifying strains could be applied in breakup of emulsion produced in the petroleum industry.The demulsifying strain Alcaligenes sp.S-XJ-1 was found to be capable of utilizing paraffin or certain pure n-alkane as its sole carbon source, and exhibited a strong cell surface hydrophobicity above 7…
Within the automotive industry a design that implements composite parts where the function and location justify the higher costs and uses cost efficient materials where the weight saving potential is low, is key to a sufficient lightweight design. In order to support the development process of a resource-efficient mul…
Fe thin film coated optics were developed to monitor the internal corrosion in natural gas transmission pipelines. The Fe thin film corrosion behavior was studied in CO2-saturated 3.5%wt. NaCl solution using in-situ direct electrochemical methods.
The main point of this work is to investigate the preparations variables of activated carbon derived from coconut shell (CSAC) for removal of hydrogen sulfide (H2S) from wastewater. The CSAC was chemically modified with potassium hydroxide (KOH). The central composite design (CCD) under response surface methodology (R…
Diesel spray combustion is prone to lead to high soot and nitrogen oxides (NOx) emissions. Regulations impose lowering the emission limits drastically because of the severe impact on health and environment. Apart from health and environmental issues, soot production also results in an efficiency loss due to the heat l…
International audience
Система комплексной поддержки и сопровождения научного журнала Elpub позволяет запустить двуязычный сайт журнала со встроенной системой электронной редакции в соответствии с лучшими издательскими практиками, а так же предусматривает техническую и методическую поддержку со стороны специалистов НЭИКОН.
Compared with traditional cast-in-place structures, fabricated structures have the characteristics of saving energy, protecting the environment, eliminating mold, and short construction times. Fabricated structures have been developed rapidly in above-ground buildings. However, the use of underground-fabricated struct…
To improve the properties of powder magnetic core for motors, such as iron loss, resistivity and strength, pure iron powder was deformed into flaky-shaped and then annealed to decrease strain by deformation. It was confirmed that the strength of iron core increased with increasing the aspect ratio of powder. However,…
Apparels are subjected to visual examination to detect sewing defects after making of the garments which results in higher rejection, time, cost etc. Sewing defects must be detected early i.e during sewing itself and accurately to overcome above quality issues. Apparels are mostly sewn with lock stitch in straight and…
In the article the nonlinear characteristic of the elastic element of the vehicle suspension is investigated. Suspension is an important part of any car and its performance, in many ways, determines the correct operation ofthe entire car as a whole. Whendesigning the suspension, special attention is paid to the elasti…
Autologous fat grafting has now been extensively and successfully performed for more than two decades. Although most adipose grafts and adipose-derived MSC therapies are done with fresh tissue, cryopreservation of tissue allows much greater flexibility of use. Over the course of five years, 194 cryopreserved adipose s…
摘要： 使用自主设计的高效平面滚压刀具对纯铜进行表面制造，利用塑性变形诱导在纯铜表面制备梯度纳米结构；采用金相显微镜、透射电子显微镜等对梯度纳米结构进行表征，量化变形强化层厚度，考察晶粒尺寸分布；对梯度纳米结构的磨损行为进行研究，并解释了相关机理。结果表明，滚压诱导后表层纳米晶粒细化小于20 nm，并随深度逐渐增至基体晶粒尺寸，形成了十分明显的梯度结构，同时具有较为理想的表面粗糙度和截面硬度分布；干摩擦试验表明，低载时梯度纳米结构具有较好抗粘着能力，摩擦性能较好；高载时由于表层纳米结构强烈变形，微碎裂及随后的三体磨损反而降低了摩擦性能。
Made available in DSpace on 2018-01-24T22:13:11Z (GMT). No. of bitstreams: 1\nPProductionofCelluloseNanofibers....pdf: 1068024 bytes, checksum: 419bb3e14ba972d0969e9514c17b3370 (MD5)\n Previous issue date: 2018-01-23
Enhanced conversion efficiency with reduced cost of thin film solar cell is the primary objective of the scientific community. Light trapping mechanism is essential which have been explored and improved the performance of the solar cell. Past few decades, the plasmonic solar cell has been investigated in which activel…
The academic meanings of infrared imaging fiber bundles were researched and their fabrication technologies were given. A kinds of flexible chalcogenide infrared imaging fiber bundles were fabricated, and their characteristics were tested. By taking As40S58Se2and As40S60as the rod and tube materials, the fibers were dr…
Карагандинский государственный технический университет, Караганда
摘要： 针对注塑成型短玻纤增强复合材料，研究二阶纤维取向张量与纤维取向角度之间的连续函数关系，建立纤维均质化RVE模型。基于Taguchi正交试验设计方法，利用DIGIMAT软件对短玻纤增强复合材料RVE模型进行仿真试验，定量分析纤维质量分数（A）、纤维长径比（B）和纤维取向张量（C）对短玻纤增强复合材料力学性能的影响规律。考虑注塑成型过程中的纤维分层效应，提出了夹芯分层模型并进行铺层设计。基于灰箱理论和反求工程，选取纤维长径比、表层厚度比和芯层厚度比、表层纤维取向张量、纤维取向矢量旋转角四个影响因素，反演预测短玻纤增强复合材料PA66（GF50）正交各向异性弹性常数，与材料拉伸弹性模量E33、泊松比u31和泊松比u32的试验结果…