نتایج جستجو برای: mpeg

تعداد نتایج: 8267  

Journal: :Journal For Virtual Worlds Research 2009

Journal: :The Journal of The Institute of Image Information and Television Engineers 2015

Journal: :IEEE Consumer Electronics Magazine 2022

The amount of video content and the number applications based on multimedia information increase each day. development new coding standards is a challenge to compression rate other important features with reasonable in computational load. Joint Video Experts Team ITU-T Coding Group ISO/IEC Moving Picture (MPEG) have worked together develop versatile standard, finalized July 2020 as Internationa...

2005

This White Paper promotes the concept and the idea behind MPEG-A in general and Multimedia Application Formats (MAFs) in particular. To this end, the White Paper is published via the MPEG Web site. The document is targeted at people in MPEG who are not familiar with MPEG-A yet as well as at industry representatives who may not be involved with the MPEG standardization process. 1. The MPEG-A Sta...

Journal: :MONET 1998
Alexandros Eleftheriadis Atul Puri

The ISO MPEG committee, after successful completion of the MPEG-1 and the MPEG-2 standards is currently working on MPEG-4, the third MPEG standard. Originally, MPEG-4 was conceived to be a standard for coding of limited complexity audio-visual scenes at very low bit-rates; however, in July 1994, its scope was expanded to include coding of scenes as a collection of individual audio-visual object...

2011
Zhendong Liu Yinling Ren Li Pan Han-Mei Xu

HM-3, designed by our laboratory, is a polypeptide composed of 18 amino acids. Pharmacodynamic studies in vivo and in vitro indicated that HM-3 could inhibit endothelial cell migration and angiogenesis, thereby inhibiting tumor growth. However, the half-life of HM-3 is short. In this study, we modified HM-3 with different polyethylene glycols (PEG) in order to reduce the plasma clearance rate, ...

Journal: :The Journal of the Institute of Image Information and Television Engineers 1997

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

پیوند شیمیایی پلی اتیلن گلایکول (peg) با پروتئین های دارویی، مزیت های فراوانی، از جمله: طولانی شدن زمان تصفیه ی دارو از بدن، کاهش سمیت، افزایش پایداری و حلالیت دارو دارد. پگیلاسیون یک پروتئین دارویی با کاهش توانایی سامانه ی ایمنی بدن در شناسایی و تخریب ترکیب پروتئینی مورد نظر، بازده درمانی را افزایش می دهد. برای تشکیل ترکیب پگیله ی یک پروتئین، ابتدا بایستی پلی اتیلن گلایکول (peg) فعال شده و به...

Journal: :The Journal of the Institute of Image Information and Television Engineers 1999

Journal: :Journal of controlled release : official journal of the Controlled Release Society 2003
Seung Ho Choi Haeshin Lee Tae Gwan Park

A new class of methoxy-poly(ethylene glycol) (mPEG) derivatives having a cleavable group of oligo-lactic acid (OLA) was synthesized by ring opening polymerization of L-lactide using a terminal hydroxyl end of mPEG as an initiator. The synthesized mPEG derivatives had 0.8 and 3.6 lactic acid units based on the MALDI-TOF data. A terminal end group of mPEG-OLA was further activated with p-nitrophe...

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