نتایج جستجو برای: biological process

تعداد نتایج: 1703815  

Journal: :Proceedings of the National Academy of Sciences 2008

Nitric oxide (NO) is known as an unstable signaling molecule that can be produced by three different NO synthase (NOS) isoforms. It plays a vital role in a wide range of physiological processes in the body. For instance, in cardiovascular system NO acts as a blood vessel relaxant, while in central nervous system (CNS) it acts as a neurotransmitter. In reproductive system it regulates gonadotrop...

The Image reconstruction is an important problem in optical tomography. The process of the image processing requires the study of photon migration in biological tissue. There are several approaches to study and simulate propagation of photons in biological tissues. These approaches are categorized into stochastic and analytical groups. The Monte Carlo method as a stochastic method is widely use...

Journal: :journal of paramedical sciences 0
hamid alavi majd biostatistics department, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran soodeh shahsavari biostatistics department, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran soheila khodakarim school of public health, shahid beheshti university of medical science, tehran seyyed mohammad tabatabaei medical informatics department, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran bi bi fatemeh nobakht motlagh ghochani proteomics research center, shahid beheshti university of medical sciences, tehran

an important step in considering of gene expression data is obtained groups of genes that have similarity patterns. biclustering methods was recently introduced for discovering subsets of genes that have coherent values across a subset of conditions. the las algorithm relies on a heuristic randomized search to find biclusters. in this paper, we introduce biclustering las algorithm and then appl...

Background and Objectives: Advanced Sequencing batch reactors (SBR) are one of the most suitable modified activated sludge systems. Due to low cost, optimal efficiency, and easy operation, they are recognized as an effective biological treatment system. The purpose of this study was to determine the performance of the SBR biological process in the removal of organic matter and nutrients from Ya...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده حقوق 1389

چکیده ندارد.

2015
Huoqing Wang Yuntao Guan Li Li Guangxue Wu

Two sequencing batch reactors, one with the conventional anoxic and aerobic (AO) process and the other with the multiple AO process, were operated to examine characteristics of biological nitrogen removal, especially of the multiple AO process. The long-term operation showed that the total nitrogen removal percentage of the multiple AO reactor was 38.7% higher than that of the AO reactor. In th...

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

abstract this study attempted to investigate the strategies used to translate clichés of emotions in dubbed movies in iranian dubbing context for home video companies. the corpus of the current study was parallel and comparable in nature, consisting of five original american movies and their dubbed versions in persian, and five original persian movies which served as a touchstone for judging n...

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