Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"TIG"”.
-
Synergic control in MIG welding and penetration control in TIG welding
… techniques. Part II: Penetration control in TIG welding A 'backface' penetration control system developed at Liverpool University, based on a ‘video camera' instead of a ‘photodiode' as a sensor, has been evaluated at The Welding Institute. Essentially, the system controls the size of the …
-
Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process
… an experimental setup capable of performing a TIG welding process and acquiring temperature measurements near the weld with the use of an infrared spot sensor. The data collected can then be used to validate a computer simulation that models the exact same process. An experimental setup was …
-
Optimization of new semi-automatic TIG welding process for surface quality through taguchi method
Tungsten inert gas (TIG) welding which uses a non-consumable tungsten electrode and an inert gas for arc shielding, is an extremely important arc welding process. The aims of this research project are to find optimization parameters in weld bead using TIG. Semi-automatic TIG was developed to ensure …
-
Relacao entre o angulo da ponta do eletrodo e a geometria do cordao de solda no processo de soldagem tig
No processo de soldagem TIG (Tungstênio Inerte Gás), um dos fatores que influenciam o formato do cordão de solda é o ângulo da extremidade do eletrodo. Para estudar o comportamento do arco elétrico em função da geometria de ponta do eletrodo e suas conseqüências nos cordões de solda, efetuaram-se …
-
Inhibition of Mitochondrial Translation as a Therapeutic Strategy for Acute Myeloid Leukemia
… a screen and identified the antimicrobial tigecycline (TIG). Methods: Primary AML mononuclear cells were isolated by Ficoll centrifugation from peripheral blood. Flow cytometry dye; JC-1, Carboxy-H2DCFDA, Mitotracker GreenFM. Leukemia stem cell activity was assayed by human AML engraftment …
-
Total Fume and Heavy Metals Emission Factors Applicable to Aluminum-Lithium Alloy Welding
… the fumes generated by the Tungsten Inert-Gas (TIG) welding on Aluminum-Lithium Alloy (Al-Li Alloy), estimate applicable emission factors, and identify the heavy metal concentrations of lead, manganese, and chromium. Although there are numerous metals and various welding procedures this study …
-
Evaluation of Cold Spray Process for Solid-State Welding
… the origin of softening in a Tungsten inert gas (TIG)-welded AA 6061-T651 plates is first comprehensively investigated using experimental, analytical, and thermodynamic modelling approaches; this is further compared with the CSWed samples to assess its (CSW) potential and current limitations for …
-
CLASSIFYING TCP NETWORK TRAFFIC FLOWS VIA TRAFFIC INTERACTION GRAPHS AND MACHINE LEARNING
… We then apply the traffic interaction graph (TIG) framework to these flows to capture burst patterns among signed packet lengths. Finally, we train these flows on a random forest classifier (RFC), a simple convolutional neural network (CNN), and a graph convolutional network (GCN). …
-
Characterization of Cyclopropyl Synthases Involved in the Maturation of Ribosomally Synthesized and Posttranslationally Modified Peptides
… by the radical S-adenosylmethionine enzyme TigE. TigE belongs to the TIG biosynthetic gene cluster (BGC), which is encoded by <em>tigABCDEF</em>, found in the bacterium <em>Paramaledivibacter caminithermalis</em>. The TIG precursor peptide, TigB, is comprised of a repeating TIGSVSG motif. …
-
The low temperature fracture behaviour of the super duplex stainless steel Zeron 100
… produced using both tungsten inert gas (TIG) and manual metal arc (MMA) techniques. The rolled plate material was also investigated after heat treatments at temperatures of 425 and 850°C, which were known to embrittle the material.
-
Desarrollo de un sistema interactivo de gestión integral de parámetros de influencia en procedimientos de soldadura robotizada para procesos de soldeo por arco eléctrico con protección de gas, MIG/MAG y TIG
… inicialmente para un soldador, como son GTAW (TIG) o GMAW (MIG/MAG). Factores como la alta reproducibilidad, el excelente control de posicionamiento, flujo de material y parámetros de proceso, junto con un casi perfecto seguimiento de las trayectorias, han introducido una sensible mejora de la …
-
Návrh snížení počtu svarů u rámových dveří kolejových vozidel z Al slitin
… dle stavu T66. Profily jsou svařovány metodou TIG s využitím přídavného materiálu S Al 5087 (AlMg4,5MnZr). Tepelné ovlivnění svařovacím cyklem vyvolává v základním materiálu změnu struktury a pokles mechanických vlastností z důvodu rozpuštění precipitátů. Pro zjištění potřebných mechanických …
-
The Effects of Composition on Weld Solidification Cracking in Low Alloy High Tensile Steels
… on weld solidification cracking in the TIG arc welding of thin alloy steel sheet. The main points of this study included the effects of - oxygen, manganese, Mn/S and 0/S ratios on the sulphur induced cracking, and the possibility of predicting crack susceptibility based on the material …
-
Tribo-corrosion maps for steels, titanium and titanium carbide materials
… coatings produced by Tungsten Inert Gas (TIG) welding torch melting process on steel and titanium substrates. The integrity of TiC composite coatings were checked and analysed on the substrates. The effects of change in sliding speeds and normal loads on wear behaviours were investigated …
-
A PLATFORM FOR THE DISCOVERY AND CHARACTERIZATION OF PROTEINS THAT ASSOCIATE WITH PSEUDOMONAS AERUGINOSA RNA POLYMERASE
… proteins, AlgQ, NusG, ClpA, DppF, and Tig were shown to interact with particular fragments of the <em>E. coli</em> RNAP coreome. Specifically, we show that AlgQ interacted with σ 528-613, NusG interacted with β’249-328 and β’264-308, ClpA interacted with β 829-930 and β 831-1059, DppF …
-
Control and qualification of titanium welds
… real-time and closed-loop control of the TIG welding process to give a desirable weld. Specifically, a process control data base was built up using software and a knowledge-based system for acceptable welding parameters, which were determined by acceptable penetration depth, grain size and …
-
Keanekaragaman zooplankton di Perairan Pantai Lekok Kabupaten Pasuruan
… Sampel diambil pada lima stasiun dengan tig kali ulangan. Sampel diambil dengan menggunakan Plankton Net. Sampel diidentifikasi di laboratorium Ekologi dan Optik Jurusan Biologi, Fakultas Sains dan Teknologi Universitas Islam Negeri Maulana Malik Ibrahim Malang. Hasil penelitian …
-
Percepción y representaciones sociales del riesgo hídrico en el sudoeste bonaerense : el caso de la cuenca del arroyo Napostá Grande
… ellas, constituyen los ejes centrales de la investigación. En el área de estudio, la alternancia de eventos de exceso y déficit hídrico es un fenómeno recurrente que genera diversos inconvenientes en la vida cotidiana de los habitantes. En la tesis se aborda la percepción de riegos ambientales, en …
-
New cytotoxic natural products from North-Eastern Pacific marine invertebrates
An investigation into the chemistry of four species of marine invertebrates which were found to produce cytotoxic crude extracts (ED50 against the L1210 murine leukemia cell line 5 30 pg/mL) led to the isolation of nine new and eleven previously known secondary metabolites. The structures of the …
-
Automatizace procesu svařování HSS v prostředí JE
Bakalářská práce srovnává ruční a mechanizovaný způsob svařování při výrobě heterogenního svarového spoje. Vzorky byly svařeny z austenitických a feriticko-perlitických základních materiálů za použití stejného typu vysoko-legovaného přídavného materiálu. Geometrie spoje pro oba způsoby shodná. Byly …
Page 1 of 2