نتایج جستجو برای: novel bio ceramic

تعداد نتایج: 869083  

Journal: :Aerospace 2022

Additive manufacturing (AM) can revolutionise engineering by taking advantage of unconstrained design and overcoming the limitations traditional capabilities. A promising application AM is in catalyst substrate manufacturing, aimed at enhancement catalytic efficiency reduction volume weight reactors exhaust gas aftertreatment systems. This work addresses fabrication innovative, hybrid monolithi...

2018
Quan Liu Yukai Li Qianqian Li Guozhen Liu Gongping Liu Wanqin Jin

Pervaporation membrane technology plays an important role in production of renewable bio-fuels. To improve the separation performance of polymeric membranes, an effective approach is development of mixed-matrix membranes containing high-performing fillers such as metal-organic frameworks. Towards practical application, hollow fiber could be an ideal substrate for mixed-matrix composite membrane...

2013
Andrey N. Rybyanets Anastasia A. Naumenko

The results of practical implementation of a new method for porous piezoceramics, and ceramic matrix piezocomposites fabrication were presented. The method was based on nanoparticles transport in ceramic matrices using a polymer nanogranules coated or filled with a various chemicals, with successive porous ceramics fabrication processes. Different types of polymer microgranules filled and coate...

2016

Contamination of agriculturally arable land with industry derived pollutants including heavy metals such as chromium has affected soil fertility as well plant, animal and human health by indirectly entering the food chain. Hexavalent chromium is a byproduct of tanning, electroplating, wood, dye, paper, glass, ceramic etc. industries and is usually discharged as industrial effluent. Cr (VI) is a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده عمران 1394

حضور نفت و مشتقات آن در خاک منجر به آلودگی خاک شده و می تواند چرخه های زیستی موجود در طبیعت را مختل کرده و حتی در نهایت منجر به آلودگی آب زیرزمینی به عنوان اصلی ترین منبع آب آشامیدنی گردد. آلودگی های نفتی، از جمله رایج ترین و خطرناک ترین آلاینده هایی هستند که باعث آلودگی محیط زیست می شوند. روش های زیستی پاکسازی آلودگی خاک به عنوان روش های کم هزینه و دوستدار محیط زیست شناخته شده اند. فرایند زیست...

2013
Jae-Hwi Nho Jong-Seok Park Ui-Seoub Song Woo-Jong Kim You-Sung Suh

Revision rates of total hip arthroplasty have decreased after introducing total hip arthroplasty (THA) using ceramic component, since ceramic components could reduce components wear and osteolysis. The fracture of a ceramic component is a rare but potentially serious event. Thus, ceramic on polyethylene articulation is gradually spotlighted to reduce ceramic component fracture. There are a few ...

2011
Girish Nazirkar Suresh Meshram

Background: Metal ceramic restorations are highly popular and are used for most of the crown and bridge restorations made today. Aims: To evaluate the translucency and fracture strength of two all-ceramic and traditional metal ceramic crowns. Materials and Methods: Thirty crowns of similar size and shape were constructed to fit a standard brass die. Ten crowns were manufactured from each of the...

2016
Shanchuan Zhang Penghua Ma Guanchao Wang Qiang Sun Lili Tian Lili Ma Baohua Xu

To systematically review the randomized controlled trials (RCTs) and compare the survival rates and complications of all-ceramic fixed dental prostheses (FDPs) with those of metal-ceramic FDPs. Eligible studies were retrieved in relevant electronic databases from their inception to June 8th, 2016. Then, quality of the included studies was assessed using Cochrane Collaboration’s tool. Heterogene...

Journal: :Journal of Biomedical Materials Research Part B: Applied Biomaterials 2013

2016
Ryan Siskey Lauren Ciccarelli Melissa K. C. Lui Steven M. Kurtz

BACKGROUND Most contemporary total disc replacements (TDRs) use conventional orthopaedic bearing couples such as ultrahigh-molecular-weight polyethylene (polyethylene) and cobalt-chromium (CoCr). Cervical total disc replacements incorporating polyetheretherketone (PEEK) bearings (specifically PEEK-on-PEEK bearings) have been previously investigated, but little is known about PEEK-on-ceramic bea...

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