نتایج جستجو برای: advanced nano
تعداد نتایج: 299799 فیلتر نتایج به سال:
چکیده برهمکنش یون های فلزی با پروتئین ها مورد توجه بسیاری از محققین، خصوصا بیوشیمی-دانان قرار گرفته است. آمینو اسیدها، بلوک های ساختمانی پروتئین ها هستند. پروتئین ها که مرکب از آمینواسیدها هستند نقش اساسی در بسیاری از متابولیسم های بدن دارند. در این کار، میزان پایداری کمپلکس های تشکیل شده از آمینواسیدهای فنیل آلانین و تریپتوفان با وانادیوم (v) و نانووانادیوم اکسید را در آب و مخلوط حلال آب- دی...
The art of nano-additive manufacturing in developing advanced mechanical components via machining cannot be over-emphasized when parts for aerospace, automobile, and structural application through the end-milling aluminum alloys. However, process generates heat friction due to parameter that initiated contact between cutting tool workpiece. This excess leads high surface roughness (SR), low mat...
objective: maintaining the health of oral tissues is a major goal in dentistry. however, limitations in dental materials, instruments, procedures and medications prevent achievement of this goal. advances in nanotechnology have paved the way to approach this goal. this study reviews the advances on nanotechnology in dentistry. review of literatures: in this review study, google scholar, pubmed,...
Nanoparticles (NPs) as a nanotechnologies unit have huge potential for improving drilling fluids. However, the role of NPs in this field is still its infancy and consequently has attracted much more attention last years. This review going to investigate fluids modified by nanoparticles. Moreover, effects various nanoparticles include polymeric, ceramic, metal carbon-based on fluid technical eco...
The aim of regenerative engineering is to restore complex tissues and biological systems through convergence in the fields of advanced biomaterials, stem cell science, and developmental biology. Hydrogels are one of the most attractive biomaterials for regenerative engineering, since they can be engineered into tissue mimetic 3D scaffolds to support cell growth due to their similarity to native...
سنتز پلیمرهای کوئوردیناسیونی جدید از لیگاندهای 2-آمینو نیکوتینیک اسید، 2-کینولین کربوکسیلیک اسید، 2-پیرازین کربوکسیلیک اسید در ابعاد توده، با روش گرایان دمایی و با استفاده از شاخه ی جانبی انجام شده است، این پلیمرها توسط روش طیف سنجی ir شناسایی و پایداری گرمایی آن ها توسط تجزیه های وزن سنجی حرارتی (tga) و تجزیه ی گرمایی تفاضلی (dta) بررسی شده است. در ادامه، ساختار این ترکیبات توسط بلورنگاری پرتو...
Austenitic stainless steels are extensively used in various applications requiring good corrosion resistance and formability. In the current study, the formation of nano/ ultrafine grained austenitic microstructure in a microalloyed AISI 304L stainless steel was investigated by the advanced thermomechanical process of reversion of strain-induced martensite. For this purpose, samples were subjec...
This paper presents a critical review of the work on Advanced Materials for Multi Functional Structures in Aerospace Vehicles. The advanced synthesis, processing and the characterization techniques that facilitate the design of multifunctional aerospace materials leading to their reliable and high performance in extreme environments will be reviewed. The focus areas of this paper will be materi...
Nano-zirconia exhibits excellent mechanical properties (fracture toughness, hardness and flexural strength), thermal performance (thermal conductivity), optical biological for various ceramic-based applications. Supercritical hydrothermal synthesis technology is an advanced environmental-friendly method preparing nanoscale powders. In this paper, the formation crystallization of nano-zirconia d...
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