نتایج جستجو برای: combined al
تعداد نتایج: 802313 فیلتر نتایج به سال:
BACKGROUND Anastomotic leakage (AL) is one of the most common and serious complications following visceral surgery. In recent years, endoluminal vacuum therapy has dramatically changed therapeutic options for AL, but its use has been limited to areas easily accessible by endoscope. CASE PRESENTATION We describe the first use of endoluminal vacuum therapy in the small intestine employing a com...
Background: Cadmium (Cd) intoxication can cause oxidative stress and involve the antioxi-dant defense system in hepatocytes. Administration of vitamin C, chitosan, or a combination of both may prevent Cd-induced oxidative damage. Methods:Cyprinus carpio were distributed into six groups. The control group received normal feed (Group I). Group II was exposed to 0.2 mg.L-1 cadmium chloride. Gr...
ساخت ورقهای نانوکامپوزیت al/cnt’s با استفاده از فرآیند اتصال نوردی تجمعی arb و بررسی خواص آنها کامپوزیت های al/cnt’sبا توجه به خواص منحصر بفرد مانند استحکام بالا، سفتی، سختی بالا و سبکی در صنایع هواوفضا، خودروسازی، الکترونیک، ساخت ابزارهای ریز و..... کاربردهای فراوانی دارند. بطورکلی جهت تولید اینگونه مواد مرکب زمینه فلزی روشهای مختلفی مطرح می باشد از جمله روش متالورژی پودر، روش اتصال نوردی، ...
scid disorder is major failure of the immune system, usually genetic. the aim of this study was on mutations detection of rag1, rag2, and il7rg genes in scid cases. mutation detection was performed by pcr sequencing. our results indicated that 13 mutations were found through cases which include 4 mutations in il7r gene (t661i, i138v, t56a, c57w), 7 mutations in rag1 (w896x, w204r, m324v,...
abd- al sami’ ibn-mohammad-ali- yazdi is one of the lettered, jurists & poets of 13th century (a.h) that has done valuable services to the arabic language and literature like so many other iranian. so far, there are only a few biographical books in which he has been mentioned or introduced. unfortunately he has been forgotten during the passage of time. most of his writings are in arabic and th...
Salinity and nutrient deficiency particularly nitrogen are two important limiting factors for yield production in arid and semi-arid regions. The objective of this study was to model basil response to combined salinity and nitrogen deficiency. To that end, modified Leibig-Sprengel (LS) and modified Mitcherlich-Baule (MB) and also some newly derived models based on combination of MB with salinit...
Creep age forming (CAF) is one of the novel methods in aerospace industry that has been used to manufacture components of panels with improved mechanical properties and reduced fabrication cost. CAF is a combined age-hardening and stress-relaxation that are responsible for strengthening and forming, respectively. This paper deals with the experimental investigations of mechanical and springback...
احتمال پیوند دولایه عیب فیلم اکسیدی دولایه هنگامیکه در مذاب al-4.5wt% mgو al با خلوص تجاری نگه داشته شده اند، مورد بررسی قرار گرفت. این عیب، به وسیله نگهداری دولایه اکسید آلومینیوم در تماس با همدیگر در مذاب al-4.5wt% mg و al با خلوص تجاری در دمای °c750 و برای مدت زمان های متفاوت به صورت تجربی مدل سازی شد. تغییرات صورت گرفته در ترکیب شیمیایی و مورفولوژی لایه ها ی اکسیدی به وسیله edx،sem و xrd مو...
One of the popular techniques to fabricate metal matrix composites is compo-casting process. The un-uniform spreading reinforced subdivisions (particles) inside metallic and lack desirable mechanical properties final produced due low bonding strength among reinforcement particles are main challenges in this warm accumulative press (APB) technique was utilized as supplementary improve microstruc...
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