نتایج جستجو برای: abstractnature has developed materials

تعداد نتایج: 3395768  

Journal: :Aviation, space, and environmental medicine 1986
J E Whinnery

Class C physiologic incident reports during undergraduate pilot training (UPT) revealed that 1.7 episodes of G-induced loss of consciousness (LOC) occurred monthly in 1980-1984. The mean +Gz for the LOC episodes was +3.8 Gz; the minimum, +2.0 Gz. The mean time of total incapacitation was 12.0 s (maximum, 180.0 s) as subjectively estimated by the aircrew. Improper performance of the anti-G strai...

2003
Cynthia Thompson Joseph Smarr Huy Nguyen Christopher D. Manning

Searching for educational resources on the web would be greatly facilitated by the availability of classificatory metadata, but most web educational resources put up by faculty members provide no such metadata. We explore using text classification and information extraction techniques to automatically gather such metadata. Text classifications orthogonal to topic matter appear possible with hig...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...

Journal: :Physiological research 2011
M Vandrovcová L Bačáková

This review briefly outlines the history and possibilities of bone reconstruction using various types of artificial materials, which allow interaction with cells only on the surface of the implant or enable ingrowth of cells inside the material. Information is also provided on the most important properties of bone cells taking part in bone tissue development, and on diseases and regeneration. T...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشکده اصول الدین 1389

چکیده «محکم و متشابه»، «نسخ» و «قرائات» از موضوعات مهم علوم قرآنی است. آیت الله معرفت در هر سه موضوع ضمن نقد دیدگاههای گذشته و رایج، به ارائه نظریاتی بدیع پرداخته اند. تعریف روشن از محکم و متشابه، تفاوت بین متشابه و مبهم، طبقه بندی تشابه به ذاتی و عرضی و ضابطه مند ساختن معانی تأویلی و باطنی، از جمله نوآوری های آیت الله معرفت در حوزه محکم و متشابه به شمار می رود. در موضوع نسخ، شاهد دو قرائت...

2011
Takaya Abe Karen Kato Tomoaki Fujioka Tadao Akizawa

The biocompatibilities in blood purification therapy are defined as "a concept to stipulate safety of blood purification therapy by an index based on interaction in the body arising from blood purification therapy itself." The biocompatibilities are associated with not only materials to be used but also many factors such as sterilization method and eluted substance. It is often evaluated based ...

Journal: :Dental materials journal 2008
Ayako Okada Toru Nikaido Masaomi Ikeda Koichi Okada Junichi Yamauchi Richard M Foxton Hideo Sawada Junji Tagami Khairul Matin

The purpose of this study was to evaluate the inhibition of biofilm formation on newly developed coating materials with self-cleaning properties. A series of experimental coating materials containing fluoroalkylated acrylic acid oligomer (FAAO) were applied to resin composite substrates. The surfaces of the coating materials were analyzed by X-ray photoelectron spectroscopy (XPS) and contact an...

2009
Alina Secară Pascaline Merten Yamile Ramírez

We present the online resources developed as part of eCoLoMedia, a European collaborative project in the domain of translator training, the technology used in implementing its website and in localising project materials, and discuss the impact that the rise of entertainment and cultural industries has had in this field of translation. We analyse the results of a needs analysis survey carried ou...

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