Impact of piezoelectric materials in electric vehicles
Piezoelectric materials are the future of energy production.
Materials Literature
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Comparison of Rolling Forces and Enlargement of Hot-rolled Strips Obtained from Experimental, Analytical and Simulation Models
During rolling processes, the strain on the thickness direction of a material inevitably results in dimensional changes in width and length.Knowledge of the behavior of strains and stresses acting during hot rolling process becomes indispensable, as it allows to estimate the resulting geometry and optimize process con…
Green Cellular Delivery of Copper Nanoparticle from Mirabilis Jalapa Flower Extract and Its Antipathogenic Activity
Bio friendly green modest synthesis of nanoparticles are the present research in the extremity of nanotechnology. This study has been undertaken to explore the determinants of copper nanoparticles from 1 mM CuSO4 solution through profuse concentration of aqueous flower extract of Mirabilis jalapa reducing besides immo…
Analysis of the current level of technology and engineering development of coolant filtration in automotive and tractor engines
The article analyzes modern technologies and means of filtering (cleaning) the coolant of automobile and tractor engines. A critical and still unresolved problem of contamination of the coolant and engine cooling systems in general is considered. A general assessment of existing filtration technologies and devices is…
Charakterizace vlivu tepelného zpracování na strukturu polyhydroxyalkanoátu (PHA)
Cílem práce je provést prvotní studii k biodegradovatelnému polymeru založenému na obnovitelných zdrojích. Vzorek PHA byl dodán na Ústav materiálů na Fakultu strojní se záměrem následného zpracování aditivními technologiemi. K dostatečnému porozumění vlastnostem vzorku a vhodnému zpracování je zapotřebí provést úvodní…
柔性可拉伸硅橡胶@多壁碳纳米管/硅橡胶可穿戴应变传感纤维
基于核-壳结构设计，采用简便、低成本的浸涂-固化法制得柔性、可拉伸、高灵敏且稳定的聚二甲基硅氧烷硅橡胶@多壁碳纳米管/聚二甲基硅氧烷硅橡胶(PDMS@MWCNTs/PDMS)压阻式应变传感纤维。通过FTIR、XRD、TG、TEM对硅烷偶联剂改性多壁碳纳米管(MWCNTs-KH570)的化学结构、热稳定性和微观形貌进行了分析，深入研究了核-壳结构与MWCNTs-KH570质量分数对PDMS@MWCNTs/PDMS复合纤维导电性能、传感性能及力学性能的影响规律与机制。结果表明：羟基化MWCNTs(MWCNTs—OH)表面接枝KH570使其在壳层PDMS基体中具有良好的分散性和界面相互作用；核-壳结构的设计使PDMS@MWCNTs/PD…
کاتالیست پوشش دهی طلا بر روی مس-سریا برای فرآیند اکسیداسیون ترجیحی کربن مونوکسید در جریان غنی از هیدروژن
ایران سرشار از منابع گازی است که میتواند مهمترین منبع برای تولید هیدروژن بهحساب آید. خالصسازی هیدروژن تولیدشده برای استفاده در فرآیندهای مختلف لازم است. یکی از کاربردهای هیدروژن در پیلهای سوختی است که نیاز به خالصسازی از کربن مونوکسید و رساندن آن به میزان بسیار کم در حد ppm 10 است. علت این امر مسموم شدن آند پیل…
蓝藻粉-青霉素菌渣/低密度聚乙烯复合材料配方的响应面法优化设计和验证
为了实现水华蓝藻和青霉素菌渣的资源化利用，并进一步提升蓝藻粉-青霉素菌渣/低密度聚乙烯(LDPE)复合材料的力学性能，以菌渣与蓝藻粉共混物、LDPE为原料，通过响应面法优化实验方案，研究聚乙烯蜡(PE-wax)和白油、马来酸酐接枝聚乙烯(PE-g-MAH)、三乙醇胺对蓝藻粉-青霉素菌渣/LDPE复合材料力学性能的影响。当蓝藻粉-菌渣共混粉末与LDPE的质量比为15.00%和85.00%时，响应面回归方程的方差分析结果表明，PE-g-MAH和三乙醇胺两因素间的交互作用显著，润滑剂与PE-g-MAH、润滑剂与三乙醇胺之间的交互作用不显著；回归方程预测的最佳工艺参数如下：润滑剂、PE-g-MAH、三乙醇胺的质量比分别为3.08%、4.3…
Preparation, Characterization, and Kinetics Model of MoCo/γ-Al2O3 Catalysts for Oxidative Desulfurization of Light Naphtha
The subject of this work is to study the effect of pH, molybdenum content and some of the transition metals (such as Vanadium, Chromium, Manganese, Iron, Cobalt, Nickel) on the catalyst properties and performance of oxidative desulfurization (ODS). To achieve this aim, the mesoporous 5%Co10%Mo/γ-Al2O3 catalyst was pre…
纳米Si掺杂SiO x -Si@C@碳纳米管复合负极材料的制备及性能
在对氧化亚硅(SiO)材料进行表面碳包覆和添加导电材料的基础上，掺杂少量纳米Si进一步提高其首次充放电容量和首次库仑效率。采用XRD、SEM、TEM、Raman、FTIR分析材料的物相结构和微观形貌，通过恒流充放电测试仪分析复合材料的电化学性能。结果显示，纳米Si质量为SiOx质量10%的复合材料(SiOx-Si@C@碳纳米管(CNTs)-10)的首次充放电容量分别为1 348.1 mA•h/g和1 874.4 mA•h/g，首次库仑效率为71.9%，循环100周后材料的可逆容量为1 116.2 mA•h/g，容量保持率为82.8%；以不同电流密度充放电，其放电容量远远高于没有纳米Si掺杂的材料。SiOx-Si@C@CNTs复合材…
SiO 2 或TiO 2 纳米粒子/含氟聚丙烯酸酯复合涂层的制备及其防腐蚀性能
通过在含氟聚丙烯酸酯(PFHI)溶液中添加固体纳米粒子，经涂覆热固化后得到了厚度约为1 μm的SiO2或TiO2纳米粒子/PFHI复合涂层，考察了SiO2或TiO2两种纳米粒子质量分数对复合涂层表面性质和防腐蚀性能的影响。利用Tafel极化曲线和电化学交流阻抗(EIS)测试研究了复合涂层在3.5wt% NaCl溶液中的电化学防腐蚀性能，并运用XPS、衰减全反射傅里叶变换红外光谱(ATR-FTIR)、TG-DTA、SEM、光学接触角(OCA)手段对复合涂层进行表征。结果表明，添加SiO2或TiO2纳米粒子均可大幅提高PFHI涂层的电化学防腐蚀性能，SiO2与PFHI质量比为0.3的SiO2/PFHI复合涂层电荷转移阻抗值Rct与PF…
TiO 2 -g-C 3 N 4 复合材料的制备及其在水泥石表面的应用
以Ti(SO4)2和尿素为原料，采用均匀沉淀法及不同煅烧温度制备了TiO2-g-C3N4复合材料。利用XRD和SEM对g-C3N4和TiO2-g-C3N4复合材料的结构及形貌进行了表征，并以模拟太阳光为光源，甲基橙为目标降解物，对其光催化活性进行了研究。将高催化性能的TiO2-g-C3N4复合材料与水泥石表面结合制备了具有光催化性能的水泥石。结果表明：在300℃和400℃条件下煅烧制备的TiO2-g-C3N4复合材料具有牢固异质结，而在500℃条件下煅烧产生N掺杂的TiO2。其中400℃条件下煅烧所得TiO2-g-C3N4复合材料的光催化性能最好，模拟太阳光光照60 min降解率达到91%。通过拟合计算，发现400℃条件下TiO2…
Research of composite catalysts for the process of thermocatalytic hydrogenation processing of plastic waste
Conversion plastic waste in dump is becoming unnecessary due to lawful pressures, rising costs, and poor biodegradability of commonly used polymers. In addition, the incineration meet with strong public opposition. Thus, the recycling of mechanical or chemical waste seems to be the only way to handle plastic waste in…
Analysis into the partitioning of a quaternary ammonium salt between oil and water phases
Partitioning of corrosion inhibitors between oil/water phases is one of main factors governing the inhibitor performance. It is important for the inhibitor to be dissolved in water phase at a particular concentration in order to provide protection from corrosion. Partitioning behaviour of a quaternary ammonium salt th…
Abstract 1451: Hyperthermic conditions improve curcumin efficacy for the treatment of peritoneal carcinomatosis of colon cancer origin
Abstract Patients with peritoneal metastases from colorectal cancer (CRC) have poor prognosis. Systemic chemotherapy by itself is often ineffective in the treatment of peritoneal carcinomatosis. Cytoreductive surgery (CRS) with heated intraperitoneal chemotherapy (HIPEC) is offered to appropriately selected patients.…
Abstract 2778: Mapping the extracellular pH gradient of colorectal cancer after immuno-thermal ablation
Abstract Background: Biosensor imaging of redundant deviation in shifts (BIRDS) is a non-invasive MR imaging modality that maps extracellular pH (pHe) by directly detecting paramagenetically shifted non-exchangeable protons of exogeneous agents. Previously it has been used to characterize various tumors in the rat bra…
Abstract 6255: Augmented lung tumor infiltration of chemotherapeutics using synthetic antigen receptor- mesenchymal stem cells (SAR-MSCs)
Abstract Targeted delivery can improve drug accumulation in tumor tissue and treatment outcomes. However, currently available options suffer from a lack of selectivity for tumor cells. Mesenchymal Stem cells (MSCs) can be engineered with chemotherapeutic-loaded polymeric nanoparticles (PNPs) for tumor-targeted deliver…
Abstract 2199: Improvement of ADCP response by re-education of tumor-associated macrophages with Resiquimod-encapsulated liposomes
Abstract Background: Tumor-associated macrophages (TAMs) are the major part of the tumor microenvironment 1, which are classified as two groups - the tumor-suppressing M1 type and the tumor-supporting M2 type 2. Thus, TAMs could act as a double-edged sword. Reprogramming TAMs from M2 to M1 type would improve the effic…
Abstract 2883: A transformable delivery system for the effective treatment of pediatric central nervous system tumors
Abstract Malignancies of the central nervous system (CNS) are the most common type of solid tumor affecting children and a leading cause of cancer-related death in children. With the deterioration of brain tumors, blood-brain barrier (BBB)/blood-brain tumor barrier (BBTB) with poor permeability, and relatively weak en…
Abstract 2998: Linear confined space migration induces treatment resistance and gene expression changes in glioblastoma multiforme
Abstract Background: Glioblastoma Multiforme (GBM), an aggressive brain cancer, is known for its treatment resistant recurrence and lethality. The diffuse migration and invasion of GBM cells commonly occurs along brain white matter tracts in linear confined spaces between axons and has significant clinical implication…