نتایج جستجو برای: pipeline laying

تعداد نتایج: 42633  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1388
ایمان سلامی فرد, جعفر صبحی, علی رستمی,

مشکل ترین قسمت طراحی مبدل آنالوگ به دیجیتال pipeline مربوط به طراحی طبقات اولیه می شود. بطوریکه می توان گفت که دقت طبقه اول، دقت کل مبدل را تعیین می کند. چیزی که در همه طراحی های انجام شده تا به حال مشترک می باشد، dc gain بالا برای آپ امپ بکار رفته در mdac است (البته در مواردی که از کالیبراسیون استفاده شده، الزامی به بالا بردن بهره حلقه باز آپ امپ دیده نمی شود). همانطور که می دانید با زیاد کردن...

15 صفحه اول
Journal: :WormBook : the online review of C. elegans biology 2005
William R Schafer

C. elegans hermaphrodites are self-fertile, and their rate and temporal pattern of egg-laying are modulated by diverse environmental cues. Egg-laying behavior has served as an important phenotypic assay for the genetic dissection of neuronal signal transduction mechanisms. This chapter reviews our current understanding of the neuronal and neurochemical mechanisms underlying the control of egg-l...

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ژورنال: سلامت کار ایران 2017
مرادی, افشار, نجفی کانی, ابراهیم, پروینی, مهدی,

Background and Aims: Natural gas pipeline network is an important part of a city’s infrastructure for energy transmission. As the gas pipeline network becoming vaster and more complex, accident caused by the leak of gas pipeline network occur. Accidents consequences caused by gas pipeline rupture, can directly threatening the safety of persons and properties in the city. Thus, it is neces...

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Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2003
I Amy Bany Meng-Qiu Dong Michael R Koelle

Egg-laying behavior in Caenorhabditis elegans is activated by signaling through the G-protein G(rho)q and inhibited by signaling through a second G-protein, G(rho)o. Activation of egg laying depends on the serotonergic hermaphrodite-specific neurons (HSNs), but the neurotransmitter(s) and cell(s) that signal to inhibit egg laying are not known. Mutants for G-protein signaling genes have well ch...

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ژورنال: مهندسی دریا 2013
دادخواه خیابانی, احسان, عابدی, کریم, مصطفی قره باغی, احمدرضا,

It is undeniable that instability plays a significant role in the design of pipelines. Local buckles induced by excessive force on specific part of pipeline can locally reduce the collapse pressure of a pipeline and cause local failure. Periodic placement of buckle arrestors along the pipeline can ensure that collapse only effect the length of pipe between two arrestors on either side of the in...

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ژورنال: پژوهش های تولیدات دامی 2016
جعفری آهنگری, یوسف , عبدالله پور, روح الله , قره ویسی, شهاب الدین , هاشمیان, سیده مریم ,

This study was conducted to consider the effect of theophylline in laying and some of egg characteristics on laying hens. Commercial egg type Hy-Line hens were used in a completely randomize design with 4 treatments and 3 replicates for 50 days period. The levels of different theophylline supplements (treatment) were 0 (control), one, three, and five mg per kg of body weight for 50 days. The av...

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2017
Jacquie Jacob

More recent research has primarily focused on the importance of different "normal" behaviors in relation to animal welfare in a commercial operation. Research indicates, for example, that laying performance of chickens is influenced by human interaction. Producers should walk through the laying house a couple of times per day, selecting times that fit into the flock's egg laying cycle, such as ...

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ژورنال: پژوهش های تولیدات دامی 2017
معتمدی, محمد, مهدی‌زاده تکلیمی, مظفر,

This experiment was conducted to evaluate the effects of different levels of garlic and fenugreek powder on performance and immune response in laying hens. The aim of this experiment was to compare the effects of garlic and fenugreek powder on performance, egg quality and hematological parameters and antibody titer against Newcastle disease of commercial laying hens. The experiment was performe...

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Journal: اکتشاف و تولید نفت و گاز 2019
,

Transmission and distribution pipelines have a significant role in the oil and gas industries. Pipelines are facing different threat like corrosion, improper design and incorrect operation. Gas vapor released from a pipeline (owned by NIOC) failure spread out and reached to ignition source. Due to gas outdoor spreading, “flash fire” occurred and flame return caused “vapor cloud explosion” of ga...

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2015
Zhongzan Cao Juan Li Lina Luo Xiaoshuang Li Mei Liu Ming Gao Yunhou Yin Xinhong Luan

BACKGROUND Adiponectin and its receptors (AdipoR1 and AdipoR2) are novel endocrine systems that act at various levels to regulate metabolic homeostasis and reproductive processes. We cloned and characterized the cDNA of adiponectin and its receptors from the hypothalamus of the Huoyan goose to reveal the influence of these factors on the process of goose egg-laying. We also determined the mRNA ...

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  • " +i+ "
    • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->