نتایج جستجو برای: tig
تعداد نتایج: 1040 فیلتر نتایج به سال:
BACKGROUND Tetanus is a major cause of mortality and morbidity in developing countries. Various modalities of treatment to prevent progression of the disease and alter its outcome have been tried. This study was designed to evaluate the role of intrathecal human anti-tetanus immunoglobulin (TIG) in the management of tetanus. METHODS Thirty-six adult patients presenting to an university-affili...
Many genes and signaling pathways have been found to be involved in cellular senescence program. In the present study, we have identified 16 senescence-associated genes by differential proteomic analysis of the normal human diploid fibroblast cell line, TIG-1, and focused on ATP6V0A2. The aim of this study is to clarify the role of ATP6V0A2, the causal gene for ARCL2, a syndrome of abnormal gly...
(1) A mathematical model of weldpool surface deformation and keyhole formation in PAW+TIG DSAW process is developed on the basis of magnetohydrodynamic theory and calculus of variations with considering all kinds of dynamic factors acting on the weldpool. (2) Welding current of PAW+TIG DSAW process flows in from the TIG bottom side of workpiece, along the keyhole and metal neighborhood and away...
Tree insertion grammar (TIG) is a tree-based formalism that makes use of tree substitution and tree adjunction. TIG is related to tree adjoining grammar. However, the adjunction permitted in TIG is sufficiently restricted that TIGs only derive context-free languages and TIGs have the same cubic-time worst-case complexity bounds for recognition and parsing as context-free grammars. An efficient ...
A comparative study to investigate the influences of single component fluxes on depth-to-width ratio (DWR) oxygen free copper was carried out with novel variants tungsten inert gas (TIG) welding namely Activated TIG (A-TIG), Flux Bounded (FB-TIG) and Zoned processes. The experiments identify delivering higher DWRs in A-TIG among thirteen distinct were followed by trials FB-TIG FZ-TIG employing ...
The aim of this study was to compare the mechanical strength of different joints made by conventional brazing, TIG and laser welding with and without filling material. Five standardized joining configurations of orthodontic wire in spring hard quality were used: round, cross, 3 mm length, 9 mm length and 7 mm to orthodontic band. The joints were made by five different methods: brazing, tungsten...
Process This chapter presents the principle of tungsten inert gas (TIG) welding process besides important components of TIG welding system and their role. This process is also known as gas tungsten arc welding (GTAW) process. Further, fundamentals of heat generation, arc stability and arc efficiency have also been described. Additionally, comparison of argon and helium as shielded gases has bee...
nb-1zr یک آلیاژ دیرگداز رسوب سخت شونده بر پایه نیوبیوم است. این آلیاژ به دلیل خواص فوق العاده ای نظیر استحکام دمابالا، استحکام خزشی عالی و شکل پذیری مطلوب، مورد توجه بسیاری از صنایع پیشرفته ازجمله صنایع هوافضا، هسته ای و نیروگاهی قرار گرفته است. محدوده دمای کارکرد این آلیاژ °c1200-900 و نقطه ذوب آن °c2410 است. جوشکاری این آلیاژ معمولاً با مشکلات فراوانی همچون اکسیداسیون و تشکیل فازهای ترد و شکنن...
UNLABELLED Achieving stable and desirable changes in tip rotation (TR) and tip projection (TP) is among the primary goals of modern day rhinoplasty. The tongue-in-groove (TIG) technique is one technique in rhinoplasty used to improve TR and/or TP. Performing TIG endonasally using a permanent suture can be quite cumbersome as the suture needs to be buried under the skin. We describe a variation ...
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