Relevant bibliographies by topics / AWS-3

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Academic literature on the topic 'AWS-3'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "AWS-3"

1

Oosting, S. J., H. A. Boekholt, M. J. N. Los, and C. P. Leffering. "Intake and utilization of energy from ammonia-treated and untreated wheat straw by steers and wether sheep given a basal diet of grass pellets and hay." Animal Science 57, no. 2 (October 1993): 227–36. http://dx.doi.org/10.1017/s0003356100006838.

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AbstractTwo experiments, experiment 1 with six steers in a 3 × 3 Latin-square design and experiment 2 with four wether sheep in a cross-over design, were conducted to study the effect of species and ammonia treatment on intake and utilization of the energy of untreated wheat straw. Treatments were: (1) untreated wheat straw offered ad libitum on top of a basal diet (B) consisting of hay (0·25) and grass pellets (0·75) (UWS), (2) ammoniated wheat straw offered ad libitum plus B (AWS) and (3) ammoniated wheat straw offered at a restricted level plus B (AWS-). B was offered as a maintenance diet for both species and AWS- was only studied in steers. Voluntary intake of AWS zvas higher than that of UWS. No significant differences emerged between whole rations UWS and AWS with regard to energy digestion (ED), energy metabolizability (ρ = metabolizable energy (ME) I gross energy (GE)) and losses of digestible energy (DE) in urine and methane (average 187 J/KJ DE), but the efficiency of utilization of ME for growth (kg) was significantly higher for AWS than for UWS. ED and ρ of the straw part of the ration was significantly higher for AWS than for UWS. AWS- and AWS did not differ significantly with regard to ED, ρ and DE losses in methane and urine. Steers had a higher intake per kg0·75 per day than wether sheep. Across species, digestible energy intake (DEI) of the whole ad libitum fed diets was related to live weight (M)0·946 (s.e. of exponent 0·0152). ED and ρ of the straw part of the rations did not differ significantly between species, but steers had a significantly higher ED and ρ of β than wether sheep. Steers excreted a significantly lower proportion of DE in urine and a significantly higher proportion of DE in methane than did wethers. Total energy losses in urine and methane, however, did not differ between species.
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Gruyer, Nicolas, Martine Dorais, Gérald J. Zagury, and Beatrix W. Alsanius. "Effects of Using Water Treated by Artificial Wetlands on Root Rot Suppression and Tomato Growth." HortTechnology 21, no. 6 (December 2011): 759–66. http://dx.doi.org/10.21273/horttech.21.6.759.

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The objectives of this study were to evaluate the risks and benefits of using artificial wetland-treated waters to irrigate tomato plants (Lycopersicom esculentum) and the potential for suppression of Pythium ultimum. The experiment was conducted in a greenhouse using tap water (control) and treated waters coming from three types of horizontal subsurface flow artificial wetlands filled with pozzolana and implanted with common cattail (Typha latifolia). Wetland units contained either a simple [artificial wetland with sucrose (AWS)] or complex [artificial wetland with compost (AWC)] carbon source or no [artificial wetland with no carbon (AW)] additional carbon source. A complete randomized split-block design comparing root sensitivity to root rot (inoculated and uninoculated plants) in main plots and four nutrient solutions [1) control, 2) treated water from AWS, 3) treated water from AWC, and 4) treated water from AW] in subplots was used in six replications. Tomato plants were inoculated with P. ultimum twice during the experimental period. The use of treated waters reduced the in vivo root Pythium population by 84% and 100% when the treated waters were from AWS and AWC, respectively. In vitro trials showed that sterilization or membrane filtration (0.2 μm) of treated waters significantly reduced the potential for suppression of P. ultimum, suggesting that microbial activity played an important role. On the other hand, all AW-treated waters had a negative effect on root development of uninoculated young tomato plants. Root dry weights of plants irrigated with treated waters was 56% lower than in control plants, while their shoot:root ratio was two times higher for plants irrigated with treated waters. The inoculated and AWC-treated water treatments also reduced the Fv:Fm ratio of dark-adapted leaves, representing the maximum quantum efficiency of photosystem II. Organic compounds present in treated waters, expressed as total and dissolved organic compounds, may have affected tomato root development.
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Huang, Hsiu-Chen, Hui-Hua Liu, Li-Yun Yin, Chao-Hui Weng, Chien-Liang Fang, and Cheng-San Yang. "High Incidence of Axillary Web Syndrome among Breast Cancer Survivors after Breast Reconstruction." Breast Care 15, no. 4 (November 12, 2019): 366–71. http://dx.doi.org/10.1159/000501928.

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Objective: The aim of this study was to identify if breast reconstruction is a surgical risk factor for axillary web syndrome (AWS) in breast cancer (BC) patients. Methods: The data of 207 patients who have been diagnosed with unilateral BC and who had mastectomy and lymph node dissection were retrospectively reviewed. Information of their clinical and pathological data, whether they had immediate ­reconstruction and intraoperative radiotherapy, surgical methods, and postoperative complications during the 3 months after their surgery (AWS, lymphedema, seroma, and myofascial adhesion) were collected, and the incidence of AWS was compared between different surgical methods. ­Results: The overall incidence of AWS was 48.8% in 207 patients. Of the 22 patients who received reconstruction, 19 developed AWS, yielding an incidence of 86%. Multivariate logistic regression modeling showed that patients who underwent reconstruction had a significantly higher incidence of AWS (odds ratio, 4.74), as did patients with postoperative complication of myofascial adhesion (odds ratio, 7.07). Conclusions: BC survivors after breast reconstruction are susceptible to AWS, and there is a significant association between myofascial adhesion and AWS. Our results can stimulate further investigation and provide an evidence base for the development of educational guidance for patients who plan to undergo breast reconstruction.
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Koehler, Linda A., Anne H. Blaes, Tuffia C. Haddad, David W. Hunter, Alan T. Hirsch, and Paula M. Ludewig. "Movement, Function, Pain, and Postoperative Edema in Axillary Web Syndrome." Physical Therapy 95, no. 10 (October 1, 2015): 1345–53. http://dx.doi.org/10.2522/ptj.20140377.

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Background Axillary web syndrome (AWS) is a condition that may develop following breast cancer surgery and that presents as a palpable axillary cord of tissue. Objective The purposes of this study were: (1) to determine the clinical characteristics of AWS related to movement, function, pain, and postoperative edema and (2) to define the incidence of and risk factors for AWS within the first 3 months following breast cancer surgery. Design This was a prospective cohort study with a repeated-measures design. Methods Women who underwent breast cancer surgery with sentinel node biopsy or axillary lymph node dissection (N=36) were assessed for AWS, shoulder range of motion, function, pain, and postoperative edema (using girth measurements, bioimpedance, and tissue dielectric constant) at 2, 4, and 12 weeks. Demographic characteristics were used for risk analysis. Results Seventeen women (47.2%) developed AWS, and AWS persisted in 10 participants (27.8%) at 12 weeks. Abduction range of motion was significantly lower in the AWS group compared with the non-AWS group at 2 and 4 weeks. There were no differences between groups in measurements of function, pain, or edema at any time point. Trunk edema measured by dielectric constant was present in both groups, with an incidence of 55%. Multivariate analysis determined lower body mass index as being significantly associated with AWS (odds ratio=0.86; 95% confidence interval=0.74, 1.00). Limitations Limitations included a short follow-up time and a small sample size. Conclusion Axillary web syndrome is prevalent following breast/axilla surgery for early-stage breast cancer and may persist beyond 12 weeks. The early consequences include movement restriction, but the long-term effects of persistent AWS cords are yet unknown. Low body mass index is considered a risk factor for AWS.
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Oosting, S. J., J. Van Bruchem, and X. B. Chen. "Intake, digestion and small intestinal protein availability in sheep in relation to ammoniation of wheat straw with or without protein supplementation." British Journal of Nutrition 74, no. 3 (September 1995): 347–68. http://dx.doi.org/10.1079/bjn19950140.

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The effects of ammoniation of wheat straw with or without supplementation of protein sources of either high (casein) or relatively low (potato protein) rumen degradability on intake and digestion were studied with four sheep in a 4 × 4 Latin square design. Rations offered were: (1) untreated wheat straw (UWS), (2) ammoniated wheat straw (AWS), (3) AWS supplemented with 3·2 g casein/kg live weight (W)0·75 per d (AWSC) and (4) AWS supplemented with 3·9 g potato protein/kg W0·75per d (AWSP). Straw was offered ad lib. and all rations were supplemented with sugarbeet pulp and a mineral mixture. NH3 treatment increased intake and digestion. Supplementation of AWS with potato protein increased total digestible organic matter intake (DOMI) compared with AWS whereas supplementation with casein did not affect total DOMI. Protein supplementation of AWS significantly reduced rumen digestion of cellulose, and when the supplementation was with casein it reduced rumen digestion of neutral-detergent fibre and hemicellulose also. This lower rumen digestion was compensated by a higher proportion of digestion occurring in the hindgut for hemicellulose (P<0·05 for AWSC, P>0·05 for AWSP), but not for cellulose. Across all rations, rumen fluid volume increased with increasing cell-wall intake. The efficiencies of microbial protein synthesis were (average of three different methods of estimation) 23·3, 26·2, 34·8 and 31·7gN/kg apparently-rumen-degraded organic matter for UWS, AWS, AWSC and AWSP respectively. The difference between UWS and AWS was not significant, but values for AWSC and AWSP were significantly higher than that for AWS. The rumen digestion of feed aimno acid-N (AA-N) was significantly higher for AWSC than for the other rations. The apparent small-intestinal digestion of AA-N and N was significantly higher for AWSP than for the other rations. The true small-intestinal digestion values were 0·86, 0·84 and 0·68 for AA-N, N and non-protein-N respectively. Heal endogenous losses of AA-N were approximately 6 mg/g duodenal non-protein dry-matter flow. Linear relationships were observed between DOMI and N balance and truly absorbed AA-N, indicating that DOMI could have been limited by small-intestinal amino acid availability. Regression of N balance v. truly absorbed AA-N resulted in an estimate of net efficiency of utilization of truly absorbed AA-N of 0·54.
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Garland, Elizabeth, Abigail Watts, John Doucette, Mary Foley, Araliya Senerat, and Sadie Sanchez. "Stand Up to Work: assessing the health impact of adjustable workstations." International Journal of Workplace Health Management 11, no. 2 (April 3, 2018): 85–95. http://dx.doi.org/10.1108/ijwhm-10-2017-0078.

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Purpose Sedentary behavior is linked to health risks, and prolonged sitting is prevalent among office workers. Adjustable workstations (AWS) promote health by allowing transitions between sitting and standing. Stand Up to Work compares workers with AWS to traditional desks (TD). The paper aims to discuss these issues. Design/methodology/approach Employees were randomly selected from one office floor to receive AWS, two identical floors maintained TD. Participants received workplace wellness and ergonomic training, completed self-administered questionnaires, and responded to repeated micropolling at baseline (T0), 3 (T1), 6 (T2), and 12 (T3) months in Atlanta, 2015-2016. Groups were compared using two-sample t-tests and nonparametric Wilcoxon tests. Findings Compared to TD (n = 24), participants with AWS (n = 24) reported significantly less sedentary behavior at T1 and T2 after AWS installation (p<0.05), with a retention rate at T2 of 80 and 65 percent for the AWS and TD group, respectively. In all, 47 percent of participants with AWS reported decline in upper back, shoulder, and neck discomfort (p=0.04); 88 percent of AWS participants reported convenience to use, 65 percent reported increased productivity, and 65 percent reported positive impact outside the workplace. Individuals with normal or underweight body mass index (BMI) reported a significantly greater decline in percent of time sitting compared to participants with overweight or obese BMI at all three time points. Originality/value AWS are beneficial in reducing sedentary behavior in and outside the workplace. Behavioral changes were sustained over time and associated with less self-reported muscle pain, more self-reported energy, and awareness of standing. When considering total worker health, employers should include options for AWS to promote reducing sedentary behavior.
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Hermanto, Aris, and Iswanto Iswanto. "Pengaruh Flux Elektroda AWS 5.1 E 6013 Dicelup Oli pada Pengelasan Besi Cor Kelabu FC-25 Terhadap Kekuatan Tarik." R.E.M. (Rekayasa Energi Manufaktur) Jurnal 3, no. 2 (May 2, 2019): 57. http://dx.doi.org/10.21070/r.e.m.v3i2.1857.

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In this study using specimens of gray cast iron Fc-25 (grade 2500). The test specimen is needed there 12 specimens include three test specimen material (base metal), 3 specimen variety of welding electrodes cast CI-A1, 3 specimen variety of welding using welding electrodes AWS 5.1 E6013 without immersion oil, three specimens variation welding using welding electrodes 5.1 AWS E6013 with immersion oil. The results of testing specimens welding electrodes cast CI-A1 in the amount of 16.63 MPa with 0.84% strain and a variety of welding electrode AWS E6013 5.1 with immersion oil also has the highest ultimate tensile strength of welding another variation in the amount of 17.98 MPa with a strain of 0.48% , While the lowest was tensile strength using a variety of welding electrode AWS E6013 5.1 without immersion oil that is 16.28 MPa with a strain of 0.49%.
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Caffo, Orazio, Francesca Maines, Chiara Trentin, Antonello Veccia, and Enzo Galligioni. "Long-term outcomes and predictive factors in patients (pts) with metastatic castration-resistant prostate cancer (mCRPC) showing abiraterone withdrawal syndrome (AWS) after docetaxel (DOC) treatment." Journal of Clinical Oncology 34, no. 2_suppl (January 10, 2016): 324. http://dx.doi.org/10.1200/jco.2016.34.2_suppl.324.

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324 Background: AWS has been rarely described as a possible PSA reduction, with or without radiological responses, observed after abiraterone acetate (AA) suspension due to disease progression. According to this possibility, all pts progressing under AA were usually monitored for at least 4 wks to evaluate if they developed AWS; if PSA decreased, the subsequent treatment was delayed until the occurrence of biochemical and/or radiological progression. The present study is aimed to assess long-term outcomes and predictive factors in DOC pre-treated mCRPC pts experiencing AWS. Methods: We evaluated a consecutive series of 73 pre-treated mCRPC pts, who received AA in our Hospital after DOC failure: all pts were treated with AA 1,000 mg po + prednisone 10 mg po daily; the treatment continued until progression disease (PD) which required to be confirmed by imaging. For each pt we have recorded the pre and post-AA clinical history, the treatment details and outcomes. All pts stopped AA due to progressive disease and AWS was defined by PSA reduction ≥ 25%, compared to the AA-end values, observed in the first month after AA stop. A logistic regression analysis was performed in order to assess the ability of a series of 18 selected clinical factors to predict AWS. Results: AWS was observed in 7 pts (9.5%) with a median duration of 17 wks (range 9-33). Two pts undergoing the 3-monthly radiographic restaging showed an objective response. A significant difference in terms of post-AA median OS was observed between AWS- and AWS+ pts (3.6 vs 27.9 mos; p = 0.02); this differences was confirmed by 1-month landmark analysis (4.6 vs 27.9 mos; p = 0.03). Among the factors, only the absence of pain at AA therapy baseline was able to predict the AWS: 100% of AWS+ pts were asymptomatic, compared to 64.6% of AWS- pts (p = 0.04). Conclusions: Despite AWS remains an unpredictable and rare phenomenon, it could represent a chance to delay the start of subsequent therapeutic line after AA failure. Moreover, our results seem to suggest that the occurrence of AWS may have a positive impact on the OS of mCRPC pts.
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Gogichaishvili, D., G. Chagelishvili, R. Chanishvili, and J. Lominadze. "Nature and dynamics of overreflection of Alfvén waves in MHD shear flows." Journal of Plasma Physics 80, no. 5 (May 16, 2014): 667–85. http://dx.doi.org/10.1017/s002237781400021x.

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Our goal is to gain new insights into the physics of wave overreflection phenomenon in magnetohydrodynamic (MHD) nonuniform/shear flows changing the existing trend/approach of the phenomenon study. The performed analysis allows to separate from each other different physical processes, grasp their interplay and, by this way, construct the basic physics of the overreflection in incompressible MHD flows with linear shear of mean velocity, U0=(Sy,0,0), that contain two different types of Alfvén waves. These waves are reduced to pseudo- and shear-Alfvén waves when wavenumber along Z-axis equals zero (i.e. when kz=0). Therefore, for simplicity, we labeled these waves as: P-Alfvén and S-Alfvén waves (P-AWs and S-AWs). We show that: (1) the linear coupling of counter-propagating waves determines the overreflection, (2) counter-propagating P-AWs are coupled with each other, while counter-propagating S-AWs are not coupled with each other, but are asymmetrically coupled with P-AWs; S-AWs do not participate in the linear dynamics of P-AWs, (3) the transient growth of S-AWs is somewhat smaller compared with that of P-AWs, (4) the linear transient processes are highly anisotropic in wave number space, (5) the waves with small streamwise wavenumbers exhibit stronger transient growth and become more balanced, (6) maximal transient growth (and overreflection) of the wave energy occurs in the two-dimensional case – at zero spanwise wavenumber.To the end, we analyze nonlinear consequences of the described anisotropic linear dynamics – they should lead to an anisotropy of nonlinear cascade processes significantly changing their essence, pointing to a need of revisiting the existing concepts of cascade processes in MHD shear flows.
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Kim, Ji Hyun, Jin Yong Chung, Young Kyu Kwon, Kwang Joong Kim, Chae Ha Yang, Dae-Hyun Hahm, Hye-Jung Lee, Kwang-Ho Pyun, and Insop Shim. "Acupuncture Reduces Alcohol Withdrawal Syndrome and c-Fos Expression in Rat Brain." American Journal of Chinese Medicine 33, no. 06 (January 2005): 887–96. http://dx.doi.org/10.1142/s0192415x0500348x.

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Acupuncture as a therapeutic intervention is widely practiced in the treatment of many functional disorders including alcohol abuse. In the present study, the effects of acupuncture on alcohol withdrawal syndrome (AWS) and Fos-like immunoreactivity (FLI) in the striatum and the nucleus accumbens (NAC) of rats were investigated. During 3 days of cessation following chronic administration of ethanol (3 g/kg, i.p. for 3 weeks), rats showed a significant increase in AWS, such as hypermotility, tail rigidity, grooming and tremor, and an increase in FLI in the dopamine terminal areas of the brain. Treatment with acupuncture at zusanli (ST36) or sanyinjiao (SP6) during the withdrawal period inhibited both AWS and FLI of rats undergoing ethanol injection. These results suggest that acupuncture may be useful in the treatment of alcoholism by modulating post-synaptic neural activation in the striatum and NAC.
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Dissertations / Theses on the topic "AWS-3"

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Santiago, Kamilla GilÃ. "Estudo da viabilidade econÃmica de revestimentos com as ligas de nÃquel AWS ER NiCrMo-3 e AWS ER NiCrMo-4 em chapas de aÃo ASTM 516 GR60 pelo processo MIG/MAG duplo arame." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11562.

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CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior
A soldagem de revestimentos de ligas de nÃquel à utilizada pelas indÃstrias de petrÃleo e gÃs como opÃÃo de construÃÃo e reparo de estruturas e equipamentos submetidos em ambiente de condiÃÃes severas com o intuito de apresentar desempenhos necessÃrios de resistÃncia à corrosÃo. Muitos trabalhos foram desenvolvidos com superligas de nÃquel AWS ERNiCrMo-3, AWS ERNiCrMo-4 e AWS ERNiCr-Mo14, para avaliar resistÃncias à corrosÃo e a Ãltima se mostrou bem superior, porÃm o seu custo tambÃm à bem mais elevado que as outras duas. Assim, o trabalho vem aliar a alta produtividade do processo de soldagem MIG/MAG â DA atravÃs da soldagem de revestimentos com as ligas AWS ERNiCrMo-3 e AWS ERNiCrMo-4 na intenÃÃo de se obter uma mistura que apresente tanto a composiÃÃo quÃmica prÃxima a da liga AWS ER NiCr-Mo-14 como desempenho de resistÃncia a corrosÃo, porÃm com menor custo. Estudos exploratÃrios foram realizados por meio de soldagem com simples deposiÃÃo para determinaÃÃo da faixa de velocidade de soldagem entre 50 e 100 cm/min, modo de operaÃÃo da fonte em corrente constante pulsada e gÃs de proteÃÃo ArgÃnio puro. Os revestimentos foram soldados com menor energia (7,5 kJ/cm), tecimento triangular, eletrodos posicionados um atrÃs do outro em relaÃÃo a velocidade de soldagem e sem defasagem entre as correntes. Nessa etapa variou-se Ãngulo de ataque e o percentual de sobreposiÃÃo dos cordÃes. A melhor condiÃÃo apresentada foi menor diluiÃÃo, 9,75%, e elevado reforÃo, 3,92 mm, sendo essa obtida utilizando-se a tocha inclinada de 15Â, e sobreposiÃÃes de 50%. A relativa baixa diluiÃÃo encontrada e o elevado reforÃo reduziram a necessidade de uma segunda camada, o que torna o processo uma boa opÃÃo para operaÃÃes de revestimento para indÃstria de petrÃleo e gÃs.
Weld overlayâs Nickel based alloy are used by the oil and gas industry as an option for construction and repair of structures and equipment subjected to severe environment conditions with the purpose to provide performance required like for corrosion resistance. Many works have been developed with Nickel based superalloys AWS ERNiCrMo-3, AWS ERNiCrMo-4 e AWS ERNiCrMo-14, evaluating among several characteristics the last alloy proved to be upper, but their cost is also higher than the other two. Therefore the present work intends to combine the high productivity of GMAW double wire for welding overlay applications using alloy with AWS ERNiCrMo-3, AWS ERNiCrMo-4 with the intention of obtain a mixture presenting both chemical composition similar to the AWS ER NiCrMo-14 such as corrosion resistance performance, but with less cost. Exploratory studies were performed by means of welding with simple deposition to determine the range of welding speed between 50 and 100 cm / min, the operating mode of the source constant current and pulsed pure argon shielding gas. The coatings were welded with low energy (7,56 kJ/cm), triangle weaving, electrodes positioned one behind the other in relation to the welding speed, without out of phase the currents. This step was varied angle of attack and the percentage of overlap the weld beads. The best condition was presented lower dilution, 9.75%, and a high thickness 3.92 mm and that obtained using the torch inclined at 15 Â and overlap of 50%. The relatively low dilution and high thickness found reduced the need for a second coating, which makes the process a good option for coating operations.
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Santiago, Kamilla Giló. "Estudo da viabilidade econômica de revestimentos com as ligas de níquel AWS ER NiCrMo-3 e AWS ER NiCrMo-4 em chapas de aço ASTM 516 GR60 pelo processo MIG/MAG duplo arame." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/8882.

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SANTIAGO, K. G. Estudo da viabilidade econômica de revestimentos com as ligas de níquel AWS ER NiCrMo-3 e AWS ER NiCrMo-4 em chapas de aço ASTM 516 GR60 pelo processo MIG/MAG duplo arame. 2013. 120 f. Dissertação (Mestrado em Engenharia e Ciência de Materiais) - Centro de Tecnologia, Universidade Federal do Ceará, Fortaleza, 2013.
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Weld overlay’s Nickel based alloy are used by the oil and gas industry as an option for construction and repair of structures and equipment subjected to severe environment conditions with the purpose to provide performance required like for corrosion resistance. Many works have been developed with Nickel based superalloys AWS ERNiCrMo-3, AWS ERNiCrMo-4 e AWS ERNiCrMo-14, evaluating among several characteristics the last alloy proved to be upper, but their cost is also higher than the other two. Therefore the present work intends to combine the high productivity of GMAW double wire for welding overlay applications using alloy with AWS ERNiCrMo-3, AWS ERNiCrMo-4 with the intention of obtain a mixture presenting both chemical composition similar to the AWS ER NiCrMo-14 such as corrosion resistance performance, but with less cost. Exploratory studies were performed by means of welding with simple deposition to determine the range of welding speed between 50 and 100 cm / min, the operating mode of the source constant current and pulsed pure argon shielding gas. The coatings were welded with low energy (7,56 kJ/cm), triangle weaving, electrodes positioned one behind the other in relation to the welding speed, without out of phase the currents. This step was varied angle of attack and the percentage of overlap the weld beads. The best condition was presented lower dilution, 9.75%, and a high thickness 3.92 mm and that obtained using the torch inclined at 15 ° and overlap of 50%. The relatively low dilution and high thickness found reduced the need for a second coating, which makes the process a good option for coating operations.
A soldagem de revestimentos de ligas de níquel é utilizada pelas indústrias de petróleo e gás como opção de construção e reparo de estruturas e equipamentos submetidos em ambiente de condições severas com o intuito de apresentar desempenhos necessários de resistência à corrosão. Muitos trabalhos foram desenvolvidos com superligas de níquel AWS ERNiCrMo-3, AWS ERNiCrMo-4 e AWS ERNiCr-Mo14, para avaliar resistências à corrosão e a última se mostrou bem superior, porém o seu custo também é bem mais elevado que as outras duas. Assim, o trabalho vem aliar a alta produtividade do processo de soldagem MIG/MAG – DA através da soldagem de revestimentos com as ligas AWS ERNiCrMo-3 e AWS ERNiCrMo-4 na intenção de se obter uma mistura que apresente tanto a composição química próxima a da liga AWS ER NiCr-Mo-14 como desempenho de resistência a corrosão, porém com menor custo. Estudos exploratórios foram realizados por meio de soldagem com simples deposição para determinação da faixa de velocidade de soldagem entre 50 e 100 cm/min, modo de operação da fonte em corrente constante pulsada e gás de proteção Argônio puro. Os revestimentos foram soldados com menor energia (7,5 kJ/cm), tecimento triangular, eletrodos posicionados um atrás do outro em relação a velocidade de soldagem e sem defasagem entre as correntes. Nessa etapa variou-se ângulo de ataque e o percentual de sobreposição dos cordões. A melhor condição apresentada foi menor diluição, 9,75%, e elevado reforço, 3,92 mm, sendo essa obtida utilizando-se a tocha inclinada de 15°, e sobreposições de 50%. A relativa baixa diluição encontrada e o elevado reforço reduziram a necessidade de uma segunda camada, o que torna o processo uma boa opção para operações de revestimento para indústria de petróleo e gás.
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Cavalcante, Nathália Escóssio. "Avaliação de técnicas de soldagem MIG/MAG para deposição com arames AWS ERNiCrMo-3 e ER80S-B2 em aço estrutural ASTM A387 Gr.11." reponame:Repositório Institucional da UFC, 2016. http://www.repositorio.ufc.br/handle/riufc/19007.

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CAVALCANTE, N. E. Avaliação de técnicas de soldagem MIG/MAG para deposição com arames AWS ERNiCrMo-3 e ER80S-B2 em aço estrutural ASTM A387 Gr.11. 2016. 110 f. Dissertação (Mestrado em Ciência de Materiais) – Centro de Tecnologia, Universidade Federal do Ceará, Fortaleza, 2016.
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The ASTM A387 Gr.11 steel is widely used in the oil & gas industry in applications at elevated pressures and temperatures, such as “coke drums”. Due to the work regime, coke drums undergo continuous variation in temperature along its length and thus, the thermal gradients and pressure variations for each operating cycle occurs. As a result, many problems can arise as hydrogen embrittlement and the appearance of "bulges". The bulges are preferred sites for cracking nucleation in coke drums. The actions commonly taken to solve the problems associated to cracking are the repair of cracked area by welding techniques. However, the application of many of these techniques, found operational and metallurgical problems that compromises the performance of welded components. Thus, this work aims to development and evaluation of repair techniques by welding, using the double layer temper bead technique in components made of ASTM A387 Gr.11 steel providing good mechanical and microstructural properties. The methodology of this study was divided into many stages, among them the application of hardness and microstructure evaluation criteria for determining the best welding conditions followed by the welding and characterization of the coatings. The influence of the control factors, such as welding heat input and waving was evaluated. Two filler metals were used: AWS ERNiCrMo-3 Ni based alloy (similar to alloy Inconel 625) and AWS ER80S-B2 low carbon steel (similar to the ASTM A387 Gr.11 steel) and three gas mixtures (Ar + 25% He, Ar + 4 % CO2 and Ar + 38%He + 4%CO2). The waving and welding heat input had influence on geometric features of the weld beads. The microstructure found in the heat affected zone of coatings consisted of bainite and tempered martensite. In the five welding conditions identified by the decision diagram it was found a significant grain refinement and a reduction in hardness values, when compared to the same conditions welded with single deposition proving the effectiveness of the double layer temper bead technique. In three of these conditions, the maximum hardness in the HAZ of the coatings was less than 237 HV, as required by the welding standard N-133 from Petrobras
O aço ASTM A387 Gr.11 é largamente utilizado na indústria do petróleo e gás em aplicações sob elevadas pressões e temperaturas, como em tambores de coque. Devido ao regime de trabalho, os tambores de coque sofrem uma contínua variação de temperatura ao longo de seu comprimento e, consequentemente, gradientes térmicos e variações de pressão a cada ciclo operacional ocorrem. Como resultado, vários são os problemas que podem surgir, como a fragilização e ataque por hidrogênio e a ocorrência de “bulges”, que são focos preferenciais para o aparecimento de trincas. As medidas comumente adotadas para solucionar o problema das trincas são técnicas de soldagem aplicadas a reparo. No entanto, na execução de grande parte dessas técnicas são encontradas dificuldades operacionais e metalúrgicas que acabam comprometendo o desempenho dos componentes soldados. Assim, este trabalho objetiva o desenvolvimento e avaliação de técnicas para soldagem de reparo, utilizando a dupla camada, em componentes fabricados em aço ASTM A387 Gr.11 que proporcionem boas propriedades mecânicas e microestruturais. A metodologia do presente trabalho foi dividida em etapas. Entre estas etapas destaca-se a aplicação do critério de dureza e de microestrutura, para definição das melhores relações de energia de soldagem, seguida da soldagem e caracterização dos revestimentos. Também foi explorada a influência de fatores de controle como a energia de soldagem e a técnica de tecimento. Foram utilizados dois metais de adição, a liga AWS ERNiCrMo-3 (similar à liga Inconel 625) e o aço baixo carbono AWS ER80S-B2 (similar ao aço ASTM A387 Gr.11) e três misturas gasosas (Ar + 25%He, Ar + 4% CO2 e Ar + 38%He + 4%CO2). A técnica de oscilação e a energia de soldagem mostraram ter influência nas características geométricas dos cordões. A microestrutura encontrada na ZAC dos revestimentos foi composta por bainita e martensita revenida. Nas cinco condições de soldagem de dupla camada apontadas pelos diagramas de decisão foi possível observar um significativo refino de grão bem como redução nos valores de dureza e microdureza em relação às mesmas condições soldadas com simples deposição comprovando a eficácia da técnica da dupla camada. Em três dessas condições, a dureza na ZAC dos revestimentos foi inferior a 237 HV, como requerido pela norma de soldagem N-133 da Petrobras.
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Temple, Kip. "AN INITIAL LOOK AT ADJACENT BAND INTERFERENCE BETWEEN AERONAUTICAL MOBILE TELEMETRY AND LONG-TERM EVOLUTION WIRELESS SERVICE." International Foundation for Telemetering, 2016. http://hdl.handle.net/10150/624192.

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With National Telecommunications & Information Administration (NTIA) Advanced Wireless Services (AWS-3) auction of frequencies in the 1695-1710 MHz, 1755-1780MHz, and 2155- 2180MHz bands, users of the Aeronautical Mobile Telemetry (AMT) band from 1755- 1850MHz, known as Upper L-Band, could be greatly affected. This paper takes an initial look at how the 1755-1780MHz band will be used by the cellular carriers and presents some preliminary testing results of adjacent channel (band) interference that could be experienced by AMT users. This paper should be considered as the stepping off point for future interference discussions, required analysis, and further testing.
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Mumtaz, Noman Ali, and Mansoor Khurshid. "Static and fatigue design of load carrying welded joints in high strength steels : -In collaboration with Cargotec Sweden AB." Thesis, KTH, Lättkonstruktioner, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-77517.

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This thesis work is carried out in Cargotec Sweden AB, Bromma Conquip to study the behavior of load carrying welded joints in different weld metal strength mismatch conditions and various penetration ratios. Static and fatigue strength calculations have been made using FEA and experimentation. The joint in the Telescopic beam of the spreader STS45 has been analyzed. Telescopic beam is one of the critical and main parts in the spreader, which is directly subjected to the load of containers at various ports. Previous studies show that this joint limits the strength of the spreader, it has thus been analyzed. To check the effect of different strength mismatch conditions in the weld metal, static strength calculations have been carried out. The effect of different penetration ratios on static and fatigue strength has also been studied. A cruciform test specimen is designed according to the joint configuration and the capacity of testing machine. Criteria for the selection of consumables has also been developed and following standards: Eurocode 3, AWS D1.1 and BSK07, have been compared for static joint design. Sub modelling, effective notch stress and beam theory techniques have been used to study the effect of weld metal penetration and size of weld throat on the fatigue strength of the welded joint in the Telescopic beam. The study show that matching or slight under matching in the filler material along with full penetration increases the ultimate strength capacity as well as the ductility in the joint. Results of Eurocode 3, AWS D1.1 and BSK 07 are close to each other. Apart from strength mismatch and penetration ratios, it is observed that the weld geometry and joint preparation has also effect on the strength of the joint. Fatigue analysis of the weld in the Telescopic beam using 3D Finite element analysis show that effective notch concept is not applicable to this part of the spreader.
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Dietz, Alexander David. "Methodischer Vergleich zweier Messverfahren zur objektiven Erfassung des Schlaf-Wach-Rhythmus (SenseWear Pro 3 vs. Actiwatch AW7)." Doctoral thesis, Universitätsbibliothek Leipzig, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-100264.

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Die vorliegende Arbeit stellt das Ergebnis einer prospektiven Studie vor, in der zwei Methoden zur objektiven Erfassung des Schlaf-Wach-Rhythmus miteinander verglichen wurden. Der Standard für die Erfassung des Schlafes ist die Polysomnographie. Die Aktometrie, die Erfassung des Schlafes anhand der motorischen Aktivität eines Probanden, bietet im Vergleich zur Polysomnographie eine Reihe von Vorteilen – das Verfahren ist kostengünstig, einfach durchführbar und die Untersuchungen können über einen langen Zeitraum bis zu mehreren Monaten in der häuslichen Umgebung der Probanden stattfinden. Als nachteilig erweist sich die Gefahr der Überschätzung der Schlafdauer, vor allem bei Schlafstörungen. Dies macht die Entwicklung neuer Geräte, die zusätzlich zur Aktometrie weitere Parameter zur Schlaf-Wach-Klassifikation erheben, notwendig. In dieser Arbeit wurde das klassische und in vielen Studien validierte Aktometer Actiwatch AW7 mit dem neuen Gerät SenseWear Pro 3 verglichen. SenseWear erfasst zusätzlich zur Akzelerometrie weitere Parameter wie Hautleitfähigkeit und Wärmeabgabe. Der Vergleich wurde anhand der Daten durchgeführt, die an 26 Probanden erhoben werden konnten, die beide Geräte gleichzeitig über mindestens fünf Nächte trugen. SenseWear und Actiwatch unterschieden sich dabei signifikant in den Messergebnissen zur Gesamtschlafdauer, Schlafeffizienz und Schlaflatenz. Bei hoher Sensitivität hatte SenseWear eine niedrige Spezifität verglichen mit Actiwatch. Dies könnte ein Hinweis dafür sein, dass SenseWear durch seine multidimensionale Messmethodik wache Phasen eher als solche erkennen kann. Dies muss in weiteren Vergleichsstudien, vor allem im Vergleich zur Polysomnographie, untersucht werden.
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Dietz, Alexander David [Verfasser], Ulrich [Akademischer Betreuer] Hegerl, Christian [Akademischer Betreuer] Sander, Hubertus [Gutachter] Himmerich, and Markus [Gutachter] Löffler. "Methodischer Vergleich zweier Messverfahren zur objektiven Erfassung des Schlaf-Wach-Rhythmus (SenseWear Pro 3 vs. Actiwatch AW7) : Methodischer Vergleich zweier Messverfahren zur objektiven Erfassung des Schlaf-Wach-Rhythmus(SenseWear Pro 3 vs. Actiwatch AW7) / Alexander David Dietz ; Gutachter: Hubertus Himmerich, Markus Löffler ; Ulrich Hegerl, Christian Sander." Leipzig : Universitätsbibliothek Leipzig, 2012. http://d-nb.info/1238241018/34.

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Dietz, Alexander David. "Methodischer Vergleich zweier Messverfahren zur objektiven Erfassung des Schlaf-Wach-Rhythmus (SenseWear Pro 3 vs. Actiwatch AW7): Methodischer Vergleich zweier Messverfahren zur objektiven Erfassung des Schlaf-Wach-Rhythmus(SenseWear Pro 3 vs. Actiwatch AW7)." Doctoral thesis, 2011. https://ul.qucosa.de/id/qucosa%3A11776.

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Die vorliegende Arbeit stellt das Ergebnis einer prospektiven Studie vor, in der zwei Methoden zur objektiven Erfassung des Schlaf-Wach-Rhythmus miteinander verglichen wurden. Der Standard für die Erfassung des Schlafes ist die Polysomnographie. Die Aktometrie, die Erfassung des Schlafes anhand der motorischen Aktivität eines Probanden, bietet im Vergleich zur Polysomnographie eine Reihe von Vorteilen – das Verfahren ist kostengünstig, einfach durchführbar und die Untersuchungen können über einen langen Zeitraum bis zu mehreren Monaten in der häuslichen Umgebung der Probanden stattfinden. Als nachteilig erweist sich die Gefahr der Überschätzung der Schlafdauer, vor allem bei Schlafstörungen. Dies macht die Entwicklung neuer Geräte, die zusätzlich zur Aktometrie weitere Parameter zur Schlaf-Wach-Klassifikation erheben, notwendig. In dieser Arbeit wurde das klassische und in vielen Studien validierte Aktometer Actiwatch AW7 mit dem neuen Gerät SenseWear Pro 3 verglichen. SenseWear erfasst zusätzlich zur Akzelerometrie weitere Parameter wie Hautleitfähigkeit und Wärmeabgabe. Der Vergleich wurde anhand der Daten durchgeführt, die an 26 Probanden erhoben werden konnten, die beide Geräte gleichzeitig über mindestens fünf Nächte trugen. SenseWear und Actiwatch unterschieden sich dabei signifikant in den Messergebnissen zur Gesamtschlafdauer, Schlafeffizienz und Schlaflatenz. Bei hoher Sensitivität hatte SenseWear eine niedrige Spezifität verglichen mit Actiwatch. Dies könnte ein Hinweis dafür sein, dass SenseWear durch seine multidimensionale Messmethodik wache Phasen eher als solche erkennen kann. Dies muss in weiteren Vergleichsstudien, vor allem im Vergleich zur Polysomnographie, untersucht werden.
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Kempa, Sabine. "Untersuchungen zur Analytik, Biotransformation und Pharmakokinetik von 3-(2-Mercaptoethyl)chinazolin-2,4(1H,3H)-dion (AWD 100-041) /." 1992. http://www.gbv.de/dms/bs/toc/016100972.pdf.

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Books on the topic "AWS-3"

1

Vijayakumar, Thurupathan. Practical API Architecture and Development with Azure and AWS. Berkeley, CA: Apress, 2018. http://dx.doi.org/10.1007/978-1-4842-3555-3.

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Hakubutsukan, Tokushima Kenritsu. Awa no tōken: Heisei 3-nendo dai 4-kai kikakuten. Tokushima-shi: Tokushima Kenritsu Hakubutsukan, 1991.

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Bruce, J. M. AW FK. 3 (Little Ack). Berkhamsted: Albatros Publications, 1998.

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Vike, Corey W. Baldy's quick reference: Maximum conductor combinations 8, 10, 12 AWG conductors in 1/2", 3/4", 1" conduits, 40% conduit fill. 2nd ed. [United States]: Vike Publications, 2003.

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Bos, Olga. Codificatie van het rechtsbeginsel van de égalité devant les charges publiques in de Algemene wet bestuursrecht: Onderzoek naar de rol van artikel 3:4, tweede lid, Awb bij de toepassing van het rechtsbeginsel van de égalité devant les charges publiques. Den Haag: Boom Juridische Uitgevers, 2004.

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NCCER. Aws Welding Level 3 Trainee Guide 2000 Revised Paperback. Pearson Education Limited, 2002.

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Stoddart, Peter. Omphalocele/Gastroschisis Repair. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199764495.003.0054.

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Congenital abdominal wall defects (AWD) comprise gastroschisis and omphalocele (exomphalos). Nearly all AWDs require urgent intervention within a few hours of birth. The current incidence of omphalocele (3 per 10,000) and gastroschisis (4–5 per 10,000) has been increasing over the past few decades; however, improved management of these congenital defects has resulted in a fall in mortality to less than 5%. The anesthetic management of both conditions is essentially the same.
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Nurbakhsh, Javad. Sufism, No. 3: Submission, Contentment, Absence, Presence, Intimacy, Awe, Tranquility, Serenity (Sufism). KNP, 1985.

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Skinner, Elliott P., and Daniel Chu. Glorious Age in Africa: The Story of 3 Great African Empires (Awp Young Readers Series). Africa World Pr, 1990.

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Skinner, Elliott P., and Daniel Chu. Glorious Age in Africa: The Story of 3 Great African Empires (Awp Young Readers Series). Africa World Press, 1990.

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Book chapters on the topic "AWS-3"

1

Malhotra, Shweta, Mohammad Najmud Doja, Bashir Alam, Mansaf Alam, and Aishwarya Anand. "Executing HIVE Queries on 3-Node Cluster and AWS Cluster—Comparative Analysis." In Advances in Intelligent Systems and Computing, 307–14. New Delhi: Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2755-7_32.

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Solovyeva, Anzhelika, and Nik Hynek. "Autonomous Weapon Systems (AWS)." In The Palgrave Encyclopedia of Global Security Studies, 1–8. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-74336-3_636-1.

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Bouslama, Abdelilah, and Yassin Laaziz. "AWS for Health Care System." In Innovations in Smart Cities and Applications, 803–9. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74500-8_73.

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Backes, John, Sam Bayless, Byron Cook, Catherine Dodge, Andrew Gacek, Alan J. Hu, Temesghen Kahsai, et al. "Reachability Analysis for AWS-Based Networks." In Computer Aided Verification, 231–41. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25543-5_14.

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Grzesik, Piotr, and Dariusz Mrozek. "Serverless Nanopore Basecalling with AWS Lambda." In Computational Science – ICCS 2021, 578–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77964-1_44.

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Badhwar, Raj. "Cloud Monitoring Security Controls for AWS." In The CISO’s Next Frontier, 297–307. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75354-2_37.

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Strunz, Ulrich G. "Results." In FOM-Edition Research, 129–53. Wiesbaden: Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-33139-9_6.

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AbstractAn attempt to conduct an experiment with 330 US-American MTurks failed due to server memory capacity with the Amazon AWS “t2.micro 1 GiB”. After upgrading the server to 32 GiB of working memory with the Amazon AWS “t2.2xlarge 32 GiB”, an experiment with 180 US-American MTurks was conducted, from which data of 87 participants was used.
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Johnsen, Einar Broch, Jia-Chun Lin, and Ingrid Chieh Yu. "Comparing AWS Deployments Using Model-Based Predictions." In Leveraging Applications of Formal Methods, Verification and Validation: Discussion, Dissemination, Applications, 482–96. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-47169-3_39.

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Oya, Makoto, Masaki Ito, and Taisuke Kimura. "Middleware for the Autonomous Web Services (AWS)." In IFIP Advances in Information and Communication Technology, 5–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16283-1_5.

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Bhatt, Smriti, Farhan Patwa, and Ravi Sandhu. "Access Control Model for AWS Internet of Things." In Network and System Security, 721–36. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64701-2_57.

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Conference papers on the topic "AWS-3"

1

McDonald, Howard, Joy Cantalupo, Mike DiFrancisco, Anthony Rennier, Darcy Swain-Walsh, Jeffrey Correia, Venkatesh Ramaswamy, and Cameron Patterson. "AWS-3 Interference Mitigation: Improving Spectrum Sharing with LTE & 5G Uplink Spectrum Control." In MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM). IEEE, 2019. http://dx.doi.org/10.1109/milcom47813.2019.9020877.

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Santiago, Kamilla Giló, Marcelo Ferreira Motta, Cleiton Carvalho Silva, Jamil Nobre de Castro, Igor Paulino Fernandes, and Eduvânio Machado Silva Júnior. "CARACTERIZAÇÃO DAS MICROESTRUTURAS E DA RESISTÊNCIA A CORROSÃO DE REVESTIMENTOS DA MISTURA DAS LIGAS DE NÍQUEL AWS ERNiCrMo - 3 E AWS ERNiCrMo - 4 SOLDADOS PELO PROCESSO MIG/MAG DUPLO ARAME." In 69° Congresso Anual da ABM - Internacional. São Paulo: Editora Blucher, 2014. http://dx.doi.org/10.5151/1516-392x-24475.

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Avery, Richard E. "Sanitary Welding Standards." In ASME 2000 Citrus Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/cec2000-4605.

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Austenitic stainless steel tube and pipe systems are a vital part of today’s sanitary (hygienic) processing facilities. Product contact surface welds in the tubular systems usually cannot be ground or conditioned, so it is essential that the as-welded surfaces are suitable for cleaning-in-place (CIP). The American Welding Society AWS Dl8 Committee was formed in respond to the request by the 3-A Sanitary Standards Committee for help in preparing welding standards for use in the manufacture and construction of dairy and food product processing plants. The 3-A Sanitary Standards Committees develop and promulgate sanitary design standards for dairy and food processing, packaging and handling equipment and systems. AWS D18.1:1999 Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications developed covers the requirements for gas tungsten arc welding (GTAW) or TIG welding as it is also known, of austenitic stainless steel tube and pipe 1/4 in. (6 mm) diameter and larger. Sanitary processing systems is intended to include those systems handling products for human and animal consumption. Such products include dairy, meat, poultry, vegetable, beverage, and other products consumed by humans and animals. The paper also includes design and operation guidelines that have proven useful to engineers and users of austenitic stainless steel piping systems. Paper published with permission.
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Mota-Solis, Noé, Mauricio Pelcastre, Eduardo Ruiz, Philippe Darcis, Jose Enrique Garcia-Gonzalez, and Hector Quintanilla. "Girth Welding Development of Heavy Wall Materials for Severe Applications." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83950.

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The needs for oil and gas exploration in deep water (DW) and ultra-deep water (UDW) severe environments involve critical requirements of heavy wall materials. Offshore DW and UDW impose demanding service conditions of sour environment, mechanical properties, fatigue performance, gas service, high pressure and wide temperature ranges not only for heavy wall seamless line pipe materials but also for the girth weld performance. Thus, the development of heavy wall materials for severe applications is essential for DW and UDW, where complex material requirements are sought. Additionally the girth welding of heavy wall materials has imposed particularities typical of large wall thickness materials’ welding. The latter requires the development of particular solutions for pre-production and GMAW narrow groove offshore welding procedures. The present work presents the development of two welding processes of a heavy wall seamless pipe material: 273.1 mm OD × 46 mm WT, X65 steel grade. Pre-production welding involves STT®+SAW using a dual slope V-bevel, filler material for root processing was an AWS ER80S-G, while welding deposition for fill and cap passes was made using twin-wire technique, with two different electrodes (ENi1K and EG AWS designations), in combination with a neutral flux. On the other hand, narrow groove welding procedure considered a J-bevel, 3° angle, applying STT®+GMAW; filler material for GMAW was as well an ER80S-G AWS designation. Both welding procedures are aimed to deliver adequate mechanical properties to meet sour-service requirements (<250HV10), weld metal overmatching (120 MPa minimum) and toughness (CVN 45JAVE/38JIND) at low temperature. Mechanical characterization included hardness Vickers measurements using a 10 kgf load, tensile tests in all-weld metal and transverse impact fracture Charpy V-notch tests and CTOD tests.
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Mei, Le, Junbao Zhang, Yifeng Huang, Yan Yu, Yong Jiang, Qifan Liu, Xiaoning Zhang, and Yu Gu. "Investigation on Deposited Metal Properties of Homemade Nickel and Nickel-Free Electrodes and Fluxes for Submerged Arc Welding of SA-508 Gr.3 Cl.1." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66331.

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Up to now, two kinds of filler metal with or without nickel element for submerged arc welding have been largely used in the reactor pressure vessel (RPV) manufacturing. In order to study the effect of nickel element on weld metal properties of SA-508 Gr.3 Cl.1, submerged arc welding material with nickel (AWS classification F8P4-EGN-F2N, F2 for short) and welding material without nickel (F8P4-EA3N-A3N, A3 for short) were used; and conventional mechanical properties, low-cycle fatigue test, and proton irradiation analysis of the two weld metals were studied. Results show that the mechanical properties of the two different weld metals are similar, except that the Charpy V-notch impact property of the weld metal with nickel is better than that without nickel; the micro-structures of F2 and A3 weld metals are both composed of ferrite base and granular bainite, but the columnar grain size of F2 weld metal is smaller relatively, which results in better impact property. In addition, the irradiated A3 weld metal has fewer dislocation loops than the irradiated F2 weld metal after the same proton irradiation dose; the irradiated weld metals both have higher micro-Vickers hardness than before.
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Lee, Kwanil, Sang Bae Lee, Sil-Gu Mun, and Chang Hee Lee. "Bidirectional ROADM using a 3×N AWG." In 2007 Conference on Lasers and Electro-Optics - Pacific Rim. IEEE, 2007. http://dx.doi.org/10.1109/cleopr.2007.4391501.

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Nash, Grant S., Jason C. Ross, Basant K. Parida, Abdullatif K. Zaouk, and Swamidas K. (John) Punwani. "Variable Directivity Acoustical Warning Device (AWD) as an Optimized Locomotive Horn." In ASME 2012 Rail Transportation Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/rtdf2012-9438.

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It is estimated that up to 9.3 million people may be impacted by locomotive horn noise and up to 4.6 million of those may be severely impacted.1 In 2009, there were over 1,900 incidents, over 700 injuries, and over 240 fatalities at highway-rail grade crossings.2 Approximately 4,000 times per year, a train and highway vehicle collide at one of over 262,000 public and private highway-rail grade crossings in the United States. Compared to a collision between two highway vehicles, a collision with a train is eleven times more likely to result in a fatality, and five and a half times more likely to result in a disabling injury. Approximately half of all collisions occur at grade crossings that are not fully equipped with warning devices. Some of the drivers involved in these collisions may have been unaware of the approaching train.3 The National Academy of Engineering Committee on Technology for a Quieter America has indicated that the public would benefit if a train horn was more directional and has recommended that research and development be undertaken to better understand the effects on safety, with benefits to the public.4 As a part of an ongoing Federal Railroad Administration (FRA)-sponsored research and development effort, the authors have developed an Acoustical Warning Device (AWD) prototype with an overall goal of maximizing safety at a grade crossing and minimizing environmental noise pollution (at the wayside and in the cabin of a locomotive in reducing railroad worker occupational hazard noise exposure). An initial prototype was created that consisted of one acoustical element. An advanced prototype is currently being developed with three acoustical elements to provide variable directivity and steering capabilities through beamforming. A digitized horn signal has been created based on characteristics from an analog air-pressure locomotive horn. The initial AWD prototype has been analyzed for detectability and noise impact area and the directivity pattern of its sound emissions have been tested. The expected performance of the advanced three-unit prototype has been evaluated based on the test results of the initial prototype and acoustic simulation modeling. During development of the initial AW D prototype, spectrograms, polar directivity plots, frequency response plots, 1/3-octave band plots, and LAeq measurements of the AWD propagation were analyzed to ensure proper functionality of the AWD, in accordance with FRA and QinetiQ North America’s (QNA) specifications. Based on acoustic simulation modeling, the advanced AWD prototype is expected to generate sound up to 110 dBA at 100 feet forward of the locomotive. The AWD prototype is expected to improve detectability and reduced environmental noise exposure to the community and locomotive cabin.
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8

Consonni, Marcello, and Claire Verdon. "Machine GTAW Ambient Temperature Temper Bead Technique for Ni-Based Weld Overlay Repairs of Nuclear Components: Assessment of Hydrogen Cracking by Implant Test." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67160.

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Repair by welding of a metallic component may be required during original fabrication, following in-service inspection or during planned maintenance operations. In some instances a post-weld heat treatment (PWHT) is required. Codes/standards that cover the repair of or alterations on nuclear components, such as Section XI of the ASME Boiler & Pressure Vessel code or the French RSE-M nuclear code for in-service inspection, include provisions for waiving the need for a PWHT by using a welding technique referred to as ‘temper bead’, but in the case of in-service repairs, the practical challenges may make any heating cycles, including pre or post-heating, undesirable. So, starting from the existing temper bead procedures, repair solutions that do not require preheat, PWHT or post-heating, have been developed, particularly in the nuclear sector, referred to as ‘ambient temperature temper bead’ (ATTB). One of the most common applications of the ATTB technique is the deposition of full structural weld overlays (FSWOLs), made with Ni-based consumables on ferritic base materials, to repair piping components and nozzles susceptible to primary water stress corrosion cracking (PWSCC) and to mitigate the risk of further cracking. The ATTB technique is currently permitted for the repair of nuclear power plant components by the ASME code via Code Cases N-638-8 and N-740-2, provided the machine gas tungsten arc welding (GTAW) process is used, and it has been successfully applied on various occasions. However, the technique is currently not permitted by the RSE-M code. As the current rules in the RSE-M codes were established following experimental programs based on implant testing, the same type of tests would be expected by the French nuclear regulator to justify any changes. This paper presents the results of a research project carried out to explore the possibility of justifying the introduction of ATTB using the machine GTAW welding process to deposit austenitic weld overlays into the RSE-M code, based on implant testing. Externally loaded tests according to ISO 17642-3 (Implant test) were carried out to determine the effect of different preheat and stress levels on the cold cracking susceptibility in the parent metal. Test loads representative of actual residual stresses were determined through a review of published literature on the residual stresses associated with ATTB FSWOLs. Test pieces were obtained by depositing single beads with Inconel 52 filler metal (AWS A5.14 ERNiCrFe-7) on ASME SA 508 Grade 4N substrate. Conclusions are presented with regard to the possibility to waive preheat or to reduce the minimum preheat temperature specified for temper bead repairs, with respect to the current RSE-M code requirements. Recommendations for further work required to support a request for modification of the RSE-M code are provided.
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9

Clough, S. G. "Risetime characterisation of 3–5 MV oil Blumlein pulse generators at AWE." In 2009 IEEE 36th International Conference on Plasma Science (ICOPS). IEEE, 2009. http://dx.doi.org/10.1109/plasma.2009.5227443.

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10

Mimura, Hitoshi, Yan Wu, Yufei Wang, Yuichi Niibori, Isao Yamagishi, Masaki Ozawa, Takashi Ohnishi, and Shinichi Koyama. "Selective Separation and Recovery of Cesium by Ammonium Tungstophosphate-Alginate Microcapsules." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29091.

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A fine crystalline ammonium tungstophosphate (AWP) exchanger with high selectivity toward Cs+ was encapsulated in biopolymer matrices (calcium alginate, CaALG). The characterization of the AWP-CaALG microcapsule was examined using SEM/WDS, IR and DTA/TG analyses, and the selective separation and recovery of 137Cs were examined by the batch and column methods using simulated and real high-level liquid waste (HLLW). The free energy (ΔG0) of the ion exchange (NH4+ ↔ Cs+) for fine AWP crystals was determined at −13.2 kJ/mol, indicating the high selectivity of AWP towards Cs+. Spherical and elastic AWP-CaALG microcapsules (∼700 μm in diameter) were obtained and fine AWP crystals were uniformly immobilized in alginate matrices. Relatively large Kd values of Cs+ above 105 cm3/g were obtained in the presence of 10−3∼1 M Ca(NO3)2, resulting in a separation factor of Cs/Rb exceeding 102. The irradiated samples (60Co, 17.6 kGy) also exhibited large Kd values exceeding 105 cm3/g in the presence of 2.5 M HNO3. The Kd values in the presence of 0.1–9 M HNO3 for 67 elements were determined and the order of Kd value was Cs+ ≫ Rb+ > Ag+. The breakthrough curve of Cs+ had an S-shaped profile, and the breakpoint increased with decreasing flow rate; the breakpoint and breakthrough capacity at a flow rate of 0.35 cm3/min for the column (0.7 g AWP-CaALG) were estimated at 25.2 cm3 and 0.068 mmol/g, respectively. Good breakthrough and elution properties were retained even after thrice-repeated runs. The uptake (%) of Cs+ in simulated HLLW (28 metal components-1.92 M HNO3, SW-11, JAEA) was estimated at 97%, and the distribution of Cs+ and Zr/Ru into the AWP and alginate phases, respectively, were observed by WDS analysis. Further, the selective uptake of 137Cs exceeding 99% was confirmed by using real HLLW (FBR “JOYO”, JAEA). The AWP-CaALG microcapsules are thus effective for the selective separation and recovery of Cs+ from HLLWs.
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Reports on the topic "AWS-3"

1

Young, William F., Duncan A. McGillivray, Adam J. Wunderlich, Mark A. Krangle, Jack G. Sklar, Aric W. Sanders, M. Keith Forsyth, Mark Lofquist, and Daniel G. Kuester. AWS-3 LTE Impacts Aeronautical Mobile Telemetry. National Institute of Standards and Technology, February 2021. http://dx.doi.org/10.6028/nist.tn.2140.

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2

Frey, Michael, Geoffrey Sanders, Jolene Splett, John Ladbury, Frank Sanders, Azizollah Kord, and Ryan Jacobs. Measured emission spectra of selected AWS-3 LTE transmitters. Gaithersburg, MD: National Institute of Standards and Technology, December 2017. http://dx.doi.org/10.6028/nist.tn.1980.

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3

Bank's Aircraft VH-CBA - Inaugural Flight - (L to R) Mr AW Mason, Mrs Armitage, Leslie Melville, Governor Hugh Armitage - 3 March 1947. Reserve Bank of Australia, September 2021. http://dx.doi.org/10.47688/rba_archives_pn-001529.

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