Relevant bibliographies by topics / Charge Weld

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Charge Weld'

Author: Grafiati
Published: 23 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Charge Weld.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Charge Weld"

1

Sapchenko, Igor G., Sergey G. Zhilin, Oleg N. Komarov, and Evgeny E. Abashkin. "PROPERTIES OF A WELD JOINT PRODUCED BY A THERMITE CHARGE." Scholarly Notes of Komsomolsk-na-Amure State Technical University 1, no. 9 (March 30, 2012): 100–105. http://dx.doi.org/10.17084/2012.i-1(9).15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, Liang, Guo Qun Zhao, and Ting Ting Wang. "Effects of Process Parameters on Charge Weld Length during Multi-Hole Porthole Die Extrusion." Applied Mechanics and Materials 703 (December 2014): 141–45. http://dx.doi.org/10.4028/www.scientific.net/amm.703.141.

Full text
Abstract:
The evolution of charge weld during multi-hole porthole die extrusion was studied by means of finite element simulation and Taguchi’s design. Moreover, based on S/N analysis, the optimal process parameters that can reduce the charge weld length was obtained, where the billet diameter is 100 mm, extrusion speed is 2.0 mm/s, tool temperature is 430 °C and billet temperature is 465 °C. The accuracy and effectiveness of such optimal process parameters were also verified. The purpose of the present study is to provide some information about the controlling of charge weld for extrusion engineers.
APA, Harvard, Vancouver, ISO, and other styles
3

Lu, W., Y. M. Zhang, and John Emmerson. "Sensing of weld pool surface using non-transferred plasma charge sensor." Measurement Science and Technology 15, no. 5 (April 21, 2004): 991–99. http://dx.doi.org/10.1088/0957-0233/15/5/031.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lu, Wei, Y. M. Zhang, and John Emmerson. "Adaptive Nontransferred Plasma Charge Sensor and Its Applications." Journal of Manufacturing Science and Engineering 129, no. 1 (June 28, 2006): 180–89. http://dx.doi.org/10.1115/1.2401627.

Full text
Abstract:
Practical welding control systems require durable/compact sensors to sense the welding process and appropriate control algorithms to produce smooth welds. A novel arc welding sensor, referred to as nontransferred plasma charge sensor, which requires no additional attachment to the torch, has been proved to be reliable for weld pool surface sensing. Aiming at eliminating the effect of manufacturing conditions on the sensor performance, this paper proposes two simple yet effective methods. Specifically, reference signals are sampled either from the bottom or the top surface of the work-piece and used to define relative signals, which can measure the depth of the weld pool with better accuracy. Using improved sensing methods, two groups of welding control experiments, keyhole plasma arc welding and all-position pipe welding, have been conducted, and the effectiveness of the developed sensing/control systems in producing quality welds under various conditions is verified.
APA, Harvard, Vancouver, ISO, and other styles
5

Reggiani, Barbara, and Lorenzo Donati. "Experimental, numerical, and analytical investigations on the charge weld evolution in extruded profiles." International Journal of Advanced Manufacturing Technology 99, no. 5-8 (August 22, 2018): 1379–87. http://dx.doi.org/10.1007/s00170-018-2595-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ali, Afsar, and Dave Farson. "Statistical Classification of Spectral Data for Laser Weld Quality Monitoring." Journal of Manufacturing Science and Engineering 124, no. 2 (April 29, 2002): 323–25. http://dx.doi.org/10.1115/1.1455028.

Full text
Abstract:
Signals from several sensors were employed for real-time laser weld quality monitoring. Sheet-metal butt-joint laser welds of three quality classes (full penetration, partial penetration, gapped) were produced in experimental trials. Optical, air-born acoustic and plasma charge signals acquired during welding were subsequently Fourier-transformed and the spectra were analyzed individually to determine relationships to laser weld quality. The frequency bands most highly correlated to weld quality were identified by stepwise linear discriminant analysis (LDA) of the spectra. Testing of the quality discriminators formulated by LDA of the spectral data showed that the acoustic signal was most reliably correlated with weld quality. Fusing the data from all three sensors prior to LDA analysis produced a discriminator that had about the same reliability as one based on acoustic data alone.
APA, Harvard, Vancouver, ISO, and other styles
7

De Sanctis, M., L. Paganini, A. Solina, and R. Valentini. "Disbonding of type 347 weld overlays induced by postweld heat treatments and hydrogen charge." Journal of Heat Treating 7, no. 1 (March 1989): 35–47. http://dx.doi.org/10.1007/bf02833186.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Nanninga, N., C. White, and R. Dickson. "Charge Weld Effects on High Cycle Fatigue Behavior of a Hollow Extruded AA6082 Profile." Journal of Materials Engineering and Performance 20, no. 7 (September 10, 2010): 1235–41. http://dx.doi.org/10.1007/s11665-010-9755-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Negozio, Marco, Riccardo Pelaccia, Lorenzo Donati, Barbara Reggiani, Tommaso Pinter, and Luca Tomesani. "Finite Element Model Prediction of Charge Weld Behaviour in AA6082 and AA6063 Extruded Profiles." Journal of Materials Engineering and Performance 30, no. 6 (April 16, 2021): 4691–99. http://dx.doi.org/10.1007/s11665-021-05752-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zhou, Pei Yun, Jing Li, Ning Min Shen, and Fang Li. "An Improved Weld Seam Extraction Method Using Saliency Detection for Pipe-Line Welding Based on GMAW and Passive Light." Applied Mechanics and Materials 598 (July 2014): 160–63. http://dx.doi.org/10.4028/www.scientific.net/amm.598.160.

Full text
Abstract:
To meet the need of the automation and intelligence of welding process, it’s very important to extract the edge of weld seam accurately for seam tracking. According to the characteristics of GMAW (gas metal arc welding), an image sensing system of weld pool region based on CCD (Charge-coupled Device) is established. An improved method of weld seam extraction is presented. Firstly, weld pool region localization method using saliency detection is proposed, and weld seam region is obtained from the right edge of weld pool, then Sobel transformation and computation model is used to extract the edge of weld seam. Experimental results show that our method can obtain a more accurate weld seam edge and cost less than other method.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Charge Weld"

1

Larsson, Anton, and Oliver Prytz. "Simulering av defekten “charge weld” analyserad mot verkligheten." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105275.

Full text
Abstract:
Inom strängpressning av aluminium uppstår defekten charge weld vid byte av göt, då det gamla materialet sammanbinds med det nya. Denna defekt medför bland annat försämrad hållfasthet hos materialet. Med en ökad användning av aluminium i världen ökar även kvalitetskraven hos användarna. Defekten medför att en mängd aluminium måste skrotas och företag vill vara på den säkra sidan, därför kan mer än nödvändigt skrotas. Detta medför till en större mängd skrot och en större energianvändning då mer aluminium måste förbrukas och även smältas om.  Företag har idag börjat använda sig av simulering för att ta fram den korrekta längden på profilerna som innehåller defekten charge weld. Men då simulering inom detta område är relativt nytt litar företag inte fullt ut på den då de inte vet om det är korrekt eller inte.    Denna studie undersöker hur tillförlitlig simuleringen av charge weld är mot verkligheten samt ger en ökad förståelse för defekten som skall bidra till framtida utveckling. För att underlätta undersökningen av defekten på profiler genomfördes olika oförstörande provningsmetoder, för att detektera defektens längd. Det utfördes även kontroller över materialegenskaper med hjälp av dragprover.   Studiens resultat säger att simuleringen inte är helt fullständig för att vissa profiler inte stämmer överens med verkligheten. Studien bekräftar även att defekten ger en försämrad hållfasthet. Den undersökning som gjordes med oförstörande provningsmetoder gav resultatet att materialet är massivt. OFP-metoder kan inte detektera defektens sammanbindning mellan gammalt och nytt göt.
APA, Harvard, Vancouver, ISO, and other styles
2

Laya, Enrique J. "Système de surveillance pour la détection du dommage de fatigue cumulée dans les structures offshore en acier." Châtenay-Malabry, Ecole centrale de Paris, 1987. http://www.theses.fr/1987ECAP0048.

Full text
Abstract:
Pour vérifier le comportement des liaisons tubulaires soudées, étude d'un système de mesure en temps réel des déformations sur la section nominale des tubes arrivant aux noeuds ; technologiquement le système est conçu à partir des matériels existants.
APA, Harvard, Vancouver, ISO, and other styles
3

Koert, Emily Christina. "Doing well with change : what helps and what hinders well-educated immigrant women workers?" Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32675.

Full text
Abstract:
The purpose of this study was to gain an understanding of the strategies that new immigrant women employ to do well with changes that affect their work. This study asked the questions: What helps and what hinders immigrant women workers to do well with changes that affect their work? What would have been more helpful to do well with these changes? Participants were 10 well-educated immigrant women. Data was gathered using semi-structured, open-ended individual interviews consistent with Flanagan's (1954) Critical Incident Technique (CIT). Data was primarily analyzed using the CIT methodology. A total of 182 incidents that were grouped into 9 categories were extracted from the participants' interviews. The categories were: 1) Personal Beliefs/Traits/Values, 2) Relationships with friends/Family/ Colleagues, 3) Taking Action/Building Capacity, 4) Work Environment, 5)Self Care, 6) Skills/Knowledge/Credentials/Education, 7) Personal Issues/Challenges, 8) Contexual Issues/Challenges, and 9) Government/Community Resources. The results reaffirm the findings in the existing literature on immigrant women's thriving, resilience and hardiness and adaptation and transitions after immigration while providing a more personal account of these experiences. Uniquely, while many of the participants spoke of personal sacrifice in order to ensure the well being of their families, the importance of self-care was also highlighted. The factors that immigrant women find helpful and hindering in doing well with change can inform service delivery, program development and future research studies with this population.
Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
APA, Harvard, Vancouver, ISO, and other styles
4

Hocknell, Suzanne. "Fat chance? : eating well with margarine." Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/27794.

Full text
Abstract:
Since its invention nearly 150 years ago, margarine has proven itself adaptable to multiple ingredients and techniques whilst continuing to mimic the fatty tastes familiar to eaters in Northern Europe. In this thesis I argue that it this malleability that makes margarine a useful subject with which to explore constructions of eating-well. This thesis examines the ways in which margarine is done, why it is done in the ways that it is, and explores how such doings frame possibilities for eating-together-well. Eating-well has become something of a social obsession in the UK in recent years. Individual eating practices have become framed as a responsibility of care for personal and societal health, for agricultural workers, animal welfare and for the future of the planet. Nonetheless, it is commonly believed that although deeply personal, food habits are culturally and socially engrained, and as such are hard to change. This empirically led thesis, examines the knowledges and practices of producers and consumers, and establishes habit formation as a typical response by both producers and consumers to becoming overwhelmed with incompatible knowledges and information, compelling them to choose, prioritise and juggle ‘moral’ values. Yet, I demonstrate that such habits only remain stable until disrupted by an event which overflows and troubles this settlement. Building on this, this thesis then examines the possibilities offered by the creation of micro-events for encountering, knowing, and relating with, margarine matters anew. In this way, this thesis investigates the values, norms and power relations entangled with the presentation and enactment of margarine and its constituent parts as ‘good’ or ‘bad’ foods, examining both what these framings do, and how they are maintained. In approaching margarine matters in this way, this thesis offers three key contributions to the area of food geographies. Firstly, I demonstrate how commodity frameworks shift political problems in to a technical and administrative realm and close down spaces of critical thought and political intervention. Secondly, I establish that ‘strange encounters’ are events which can add to understandings of the more-than human world-making of food knowledges, practices, and habits. Thirdly, I determine that the novel methodological approach of ‘playing with our food’ is a productive technique with which to prefigure and rehearse more nuanced ethical understandings of eating-well as a relational doing that is excessive to consuming-well.
APA, Harvard, Vancouver, ISO, and other styles
5

Zhang, Yan. "Changes in microstructure and mechanical properties of P91 weld metal during creep." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/11419/.

Full text
Abstract:
Creep failure of the weld structure in P91 steel components in high temperature power plant applications is often a key factor limiting the lifetime of the components. Whilst creep failure in weld heat-affected zone (HAZ) regions has been studied widely, the creep properties of the weld metal itself have been less well documented. In this work, the creep response of P91 weld metal in isolation was investigated in terms of microstructural evolution and mechanical properties. The microstructural examination of P91 multi-pass weld metal revealed a typical weld metal structure including columnar regions and refined regions. The columnar region exhibited high hardness whilst the refined region exhibited lower hardness. The anisotropic creep behaviour of P91 weld metal was observed in creep tests of both longitudinal and transverse specimens at 650ºC and various stress levels. This behaviour can be correlated with the microstructural anisotropy observed, where longitudinal specimens with banded columnar regions and refined regions parallel to the stress axis had longer creep life than transverse specimens with overlapped typical-shape beads. Longitudinal weld specimens showed higher strain to failure than transverse specimens. The microstructural investigation of creep tested P91 weld metal revealed two primary modes of creep fractures. In addition to creep fractures along columnar grain boundaries (typical of weld metal creep failure), creep fractures were also found along creep-weak white-bands which had formed at the inter-bead boundaries. The white-band regions consisted of material where the M23C6 carbides had dissolved during creep testing; the loss of carbides had allowed recrystallisation of the martensitic structure to ferrite and consequently this material was much softer than the bulk weld metal. The element mapping over the weld metal by laser-induced breakdown spectroscopy (LIBS) demonstrated that there was significant inhomogeneity in the distribution of certain elements, most significantly, chromium, manganese and molybdenum. This inhomogeneity resulted in strong activity gradients in carbon (even though the carbon concentration was homogeneous following welding) resulting in carbon loss from the alloy-depleted regions, the associated dissolution of carbides and the recrystallisation that accompanied this, and thus the poor mechanical properties which resulted in creep failure. The inhomogeneity in the distribution of certain alloying elements can be partially attributed to the solute partition of alloying elements during weld solidification which has been confirmed with examination of simulation P91 TIG welds. However, the homogeneity of weld metal in this case required mixing of a base steel (the core rod in the weld consumable) and particles of various ferro-alloys (delivered into the weld pool from the flux). It is argued that poor mixing in the stagnant layer (unmixed zone) at the solid-liquid interface during weld solidification also makes a significant contribution to the formation of alloy-depleted regions. The formation of white-bands has been modelled using Thermo-Calc based on the understanding of the formation mechanism involving solute partition and subsequent carbon diffusion out of the alloy-depleted region. A good correlation to experimental results has been shown in the prediction of limiting carbon concentration and M23C6 carbide content in white-bands. In addition, it was also suggested that depletion of carbides and carbon are strongly linked and that depletion of alloying elements only above a critical value will result in total carbide loss and thus recrystallisation into a white-band.
APA, Harvard, Vancouver, ISO, and other styles
6

Dzedzora, Vivian. "Probation officers and the work environment : coping well with change." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/24570.

Full text
Abstract:
This was a qualitative, exploratory study that focused on three research questions: 1) what is the lived experience of experienced probation officers who are coping well with change, 2) what are the self-sustaining strategies probation officers use to cope well with on-going change in their work life, what hindered them from doing well, and were there things that would have been helpful but were unavailable, and 3) whether the research interview itself had an impact on probation officers’ sense of well being. This study used a descriptive phenomenological approach to gather information about probation officers’ experiences of career and change, and the Critical Incident Technique (CIT) (Flanagan, 1954) to elicit helping and hindering incidents and wish list items. A quantitative component was embedded in the form of a pre-and-post scaling question to determine if the interview process itself had an impact on the participants. Data from the phenomenological portion of the study elicited major themes for each of the relevant questions and established the contextual framework for the CIT component of the study. Data from the CIT portion of the study elicited ten helping, hindering and wish list categories. These ten categories represent the strategies that probation officers utilize in order to cope well with change. Data from the quantitative component of the study indicated that the research interview had minimal impact on participants. Implications for further research and theory development along with suggestions for workers, organizations, and counsellors are discussed.
APA, Harvard, Vancouver, ISO, and other styles
7

Ingledew, David Keith. "Health related behaviour, stress and well-being during organisational change." Thesis, Bangor University, 1994. https://research.bangor.ac.uk/portal/en/theses/health-related-behaviour-stress-and-wellbeing-during-organisational-change(d5c3190a-ce8d-4a70-bcf4-4cc1f4458444).html.

Full text
Abstract:
This study investigated whether some coping strategies are better or worse than others, by virtue of their links with health behaviours, or their stress buffering effects. It also investigated whether some ways of attributing for success and failure in health behaviour change are better or worse than others, through their effects upon feelings, expectations, and intentions. Employees of a hospital that was closing down completed questionnaires at two points in time, one year apart (baseline N= 109; of which 102 successfully followed up). Analysis was by a combination of multivariate analysis of variance, latent class analysis, exploratory and confirmatory factor analysis, and regression analysis. The evidence supported a four-dimensional view of coping (cf., Cox & Ferguson, 1991), and (less strongly) a two-type model of routine health behaviours. There was little evidence that coping strategies were linked to either routine health behaviours or to health behaviours used as ways of coping. However, the use of health damaging behaviours as ways of coping was predicted somewhat by avoidance coping. Having controlled for negative affectivity, there was little evidence that coping or resources buffered the effect of stressors on well-being, or that coping mediated between resources and well-being (cf., Cohen & Edwards, 1989). There were, however, main effects of coping on well-being (e. g., avoidance coping acted to increase mental symptoms); and main and interactive effects of stressors and resources on coping (e. g., stressors acted to increase avoidance coping but resources buffered this effect). The evidence supported a four-dimensional view of attributions (cf., McAuley, Duncan, & Russell, 1992), but with differences between attributions for success and failure. There was only limited support for Weiner's (1986) model applied to health behaviour change. Of particular interest were the interactive effects of attributions on affective reactions and on intention; these effects invariably involved the stability dimension.
APA, Harvard, Vancouver, ISO, and other styles
8

Elshenawy, Tamer Abdelazim. "Criteria of design improvement of shaped charges used as oil well perforators." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/criteria-of-design-improvement-of-shaped-charges-used-as-oil-well-perforators(d627c23e-a05b-42a2-86c3-6d67dfd7b7a7).html.

Full text
Abstract:
In addition to its various military applications, shaped charges have been used in oil industry as an oil well perforator (OWP) to connect oil and gas to their reservoirs. The collapse of the liner material under the explosive load produces a hypervelocity jet capable of achieving a deep penetration tunnel into the rock formation. The achieved penetration depends on the OWP design, which includes the geometry and the material of the explosive and the liner as well as the initiation mode and the casing of the shaped charge. The main purpose of this research is to assess the performance of OWP with different design aspects in terms of its penetration depth into concrete material.This research employed the Autodyn finite difference code to model the behaviour of OWPs in the stages of liner collapse, jet formation and jet penetration. The design parameters of OWPs were studied quantitatively to identify the effect of each individual parameter on the jet characteristics and the jet penetration depth into concrete material according to the API-RP43 standard test configuration. In order to validate the Autodyn jetting analysis, this research compared the jetting simulation results of copper OWP liners with those obtained from flash x-ray measurements while the numerical jet penetration into the laminated concrete target was validated experimentally by the static firing of OWPs. Above-mentioned experiments were designed and performed in this project.The validated hydrocode was implemented in this research to study the effects of the concrete target strength, the liner material and the liner shape on the jet penetration depth into concrete targets.For the target strength, the traditional virtual origin (VO) penetration model was modified to include a strength reduction term based on Johnson’s damage number and the effect of the underground confinement pressure using Drucker-Prager model. The VO analytical model is also implemented in the liner material study to account for the jet density reduction phenomena and its induced reduction of jet penetration capability. The jets obtained from machined copper and zirconium liners and from copper-tungsten powder liner all exhibited the density reduction phenomena. The modified VO model considers the non-uniform distribution of jet density based on the jet profile analysis using Autodyn and the experimental soft recovery for some tested liners. The results lead to a modified VO penetration model including the non-uniform jet density effect.For zirconium liner material, numerical and analytical studies were conducted for different flow velocities and different collapse angles in order to determine the boundaries between the jetting and non-jetting phases and whether a coherent or a non-coherent jet will form. This study indicated that the suggested four different liner shapes (i.e. the conical, the biconical, the hemispherical and the bell) will produce coherent jet when the zirconium is used as OWP liner.The validated Autodyn hydrocode is also used in this thesis to calculate the velocity difference between two neighbouring zirconium jet fragments. The velocity difference is related directly to the breakup time of an OWP jet, and thus, it is calculated for a range of zirconium liners with different liner wall thicknesses. The calculated values of velocity difference gave a clear insight for the breakup time formulae for zirconium jet in terms of the liner thickness and the charge diameter.
APA, Harvard, Vancouver, ISO, and other styles
9

Brak, Bastiaan. "Modelling weed population dynamics : impact of cultural control and climate change." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/2743/.

Full text
Abstract:
Over the last three decades, concern about food safety and the management of natural resources has increased. Instigated by the previous EU pesticide review, (EU 91/414) carrot growers in particular have been hit by the revocation of several post-emergence herbicides. There is real concern among growers that this may impair profits. To identify alternative weed control strategies, a modelling framework capable of simulating the impact of alternative weed management strategies on long-term weed population dynamics, was proposed. Scentless mayweed (Tripleurospermum inodorum) was chosen as model weed species. The system represented in ECOSEDYN (Effects of Cultural control and climate On SEedbank DYN For each component model in ECOSEDYN the literature was reviewed to identify the best mathematical representation and then the model was parameterised. To improve accuracy of model projections and address gaps in knowledge, field experiments were conducted in two areas: soil cultivation, and plant growth and reproduction. The results of the cultivation experiments revealed that key assumptions in models for weed seed re-distribution are incorrect. The experiments focusing on plant growth and reproduction resulted in a novel approach to the modeling of biomass increase, flowering and seed shedding where the different processes were quantitatively and temporally linked using Beta functions. amics), comprises a six-year crop rotation: one year of carrot and five years winter wheat and repeated four times. The weed management strategies consist of combinations of cultural control measures (sowing time and crop maturity time). In addition, the interaction of climate with the cultural control measures was assessed by implementing two future climate scenarios, (‘No change’ vs ‘Heating up’) based on weather data over the last 18 years. The results of the ECOSEDYN simulations showed that, regardless of the prevailing climate, choosing a fast maturing carrot cultivar is by far the most important factor in maintaining the weed seedbank low. In addition, the risk for higher seedbank levels in the long-term under ‘Heating up’ climate is largest if carrot is continuously sown late.
APA, Harvard, Vancouver, ISO, and other styles
10

Bohnet, Iris Cacilia. "Exploring landscape character : a socio-ecological analysis in the High Weald Area of Outstanding Natural Beauty." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247818.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Charge Weld"

1

Dobrecov, Nikolaj Leontʹevič. Globalʹnye izmenenija prirodnoj sredy, 2001. Novosibirsk: Izdat. SO RAN, Filial "Geo", 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

S, Dukes Jeffrey, ed. Weed biology and climate change. Ames, Iowa: Wiley-Blackwell, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ziska, Lewis H., and Jeffrey S. Dukes. Weed Biology and Climate Change. Oxford, UK: Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9780470958674.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Weissbecker, Inka, ed. Climate Change and Human Well-Being. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9742-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Benschop, Yvonne, and Jeanie M. Forray. HRM and organizational change: All's well that ends well or much ado about nothing? Edited by ebrary Inc. Bradford, England: Emerald Group Publishing, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Europa in einer Welt im Wandel: 51. Deutscher Geographentag Bonn, 6. bis 11. Oktober 1997 : Tagungsbericht und wissenschaftliche Abhandlungen. Stuttgart: F. Steiner, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Feste, Catherine. The physician within: Taking charge of your well being. Minneapolis, Minn: Diabetes Centers [i.e. Center], 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Janki, Dadi. Feeling great: How to change your life for the better. London: Brahma Kumaris Information Services in assocation with Brahma Kumaris World Spiritual University (UK), 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Canada. Health Canada. Climate Change and Health Branch. Safe Environments Programme. Health Environments and Consumer Safety Branch. Climate change and health & well-being: A policy primer. Ottawa: Health Canada, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

1713-1760, Charke Charlotte, ed. The well-known troublemaker: A life of Charlotte Charke. London: Faber, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Charge Weld"

1

Segatori, Antonio, Barbara Reggiani, Lorenzo Donati, and Luca Tomesani. "Analysis of Charge Weld Evolution for a Multi-Holes Extrusion Die." In Supplemental Proceedings, 263–71. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062142.ch33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Clark, David A. "Defining and Measuring Human Well-Being." In Global Environmental Change, 833–55. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-5784-4_66.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jouzel, Jean. "Climate Change and Climate Justice." In The Well-being Transition, 13–23. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67860-9_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Deutinger, Gerhild. "Modernisierung – der Aufbruch in eine „neue Welt“." In Kommunikation im Change, 147–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37205-6_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kronlid, David O. "Adaptation for Well-Being." In Climate Change Adaptation and Human Capabilities, 157–80. New York: Palgrave Macmillan US, 2014. http://dx.doi.org/10.1057/9781137428042_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Manzi, Claudia, and Maria Brambilla. "Identity Change." In Encyclopedia of Quality of Life and Well-Being Research, 3059–61. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-0753-5_3311.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Sharpe, Erin K. "Social Change." In Encyclopedia of Quality of Life and Well-Being Research, 6024–26. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-0753-5_2737.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Schulze Bäing, Andreas. "Neighborhood Change." In Encyclopedia of Quality of Life and Well-Being Research, 4312–13. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-0753-5_1929.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Balmert, Paul D. "Making Change Happen." In Alive and Well at the End of the Day, 93–99. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470593882.ch10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Nuttall, Mark. "Climate Change, Arctic." In Encyclopedia of Quality of Life and Well-Being Research, 951–53. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-0753-5_405.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Charge Weld"

1

Goytisolo, Rafael, Hernan Hernandez, Jorge Moya, and Inga M. Jackson. "New Expressions for Fillet Weld Torsion Shear Stresses Calculation." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82622.

Full text
Abstract:
The fillet welds are conventionally calculated to shear stress in the weakest section: the throat area of the weld. This consideration is a simplification for any fillet weld. Nevertheless, this procedure is internationally accepted as a justified procedure, mainly, for the simplification that makes the calculation of the welded joints of an engineering construction an easy procedure. This premise has motivated that different authors try to obtain calculation expressions for different cases that are presented in the practice, looking to facilitate the work of the industry technicians and engineers in charge of carrying out the calculation of these unions, however, in this pawn they don’t always use the most appropriate methods settled down by the Mechanics of the Materials introducing inaccuracies in these expressions. The Fracture Mechanics has outlined a new necessity: the development of methods of predicting defects that could exist in the welding cords. In order to do that, it is required to determine the stresses that arise in the welding with a superior accuracy. In this paper, the Theory of the Torsion of Thin Walls Profiles is applied to the calculation of the torsion shear stresses of the fillet weld joints. New calculation expressions are obtained that belong together better than the classic expressions with relationship to the values obtained by the Finite Elements Method.
APA, Harvard, Vancouver, ISO, and other styles
2

Aihara, Shuji, Hans I. Lange, Kei Misawa, Yasuhito Imai, Yu Sedei, Erling O̸stby, and Christian Thaulow. "Full-Scale Burst Test of Hydrogen Gas X65 Pipeline." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31235.

Full text
Abstract:
Full-scale burst test of X65 UOE linepipe, with 559mm outer diameter and 13.5mm wall thickness, pressurized at 16MPa by hydrogen gas was conducted. A 735mm long crack was introduced by explosive shaped charge over circumferential weld. The cracks were initiated and propagated in the both directions. The propagated crack lengths were 600mm and 270mm. J integral resistance curves were obtained from drop-weight as well as quasi static tests for the tested pipe material which was subjected to hydrogen charging. The tested steel showed little change in the resistance curves under realistic charging condition. Numerical simulation model of dynamic crack propagation, coupled with gas decompression behavior considering gas escape from opened crack, showed that an initiated crack was arrested at shorter distance in hydrogen gas pipelines than in methane gas pipelines, primarily due to earlier gas decompression in the former. The present results, together with the earlier full-scale burst tests conducted by the authors, demonstrated that hydrogen gas pipelines can be operated safely by using modern high-strength and high-toughness steel linepipes.
APA, Harvard, Vancouver, ISO, and other styles
3

Matsuhiro, Yoshiyuki, Noritake Oguchi, Toshio Kurumura, Masahiko Hamada, Nobuaki Takahashi, and Atsuhi Shirahama. "The First L555 (X80) Pipeline in Japan." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90105.

Full text
Abstract:
The construction of the first L555(X80) pipeline in Japan was completed in autumn, 2011.In this paper, the overview of the design consideration of the line, technical points for linepipe material and for girth welds are presented. In recent years the use of high strength linepipe has substantially reduced the cost of pipeline installation for the transportation of natural gas. The grades up to L555(X80) have been used worldwide and higher ones, L690(X100) and L830(X120), e.g., are being studied intensively. In the areas with possible ground movement, the active seismic regions, e.g., pipeline is designed to tolerate the anticipated deformation in longitudinal direction. In Japan, where seismic events including liquefaction are not infrequent, the codes for pipeline are generally for the grades up to L450(X65). Tokyo Gas Co. had extensively investigated technical issues for L555(X80) in the region described above and performed many experiments including full-scale burst test, full-scale bending test, FE analysis on the girth weld, etc., when the company concluded the said grade as applicable and decided project-specific requirements for linepipe material and for girth weld. Sumitomo Metals, in charge of pipe manufacturing, to fulfill these requirements, especially the requirement of round-house type stress-strain (S-S) curve to be maintained after being heated by coating operation, which is critical to avoid the concentration of longitudinal deformation, developed and applied specially designed chemical composition and optimized TMCP (Thermo-Machanical Control Process) and supplied linepipe (24″OD,14.5∼18.9mmWT) with sufficient quality. It had also developed and supplied induction bends needed with the same grade. Girth welds were conducted by Sumitomo Metal Pipeline and Piping, Ltd and mechanized GMAW (Gas Metal Arc Welding) was selected to achieve the special requirements, i.e., the strength of weld metal to completely overmatch the pipe avoiding the concentration of longitudinal strain to the girth weld, and the hardness to be max.300HV10 avoiding HSC (Hydrogen Stress Cracking) on this portion. Both of RT (Radiographic Test) and UT (Ultrasonic Test) were carried out to all the girth welds. These were by JIS (Japan Industrial Standards) and the project-specific requirements.
APA, Harvard, Vancouver, ISO, and other styles
4

Mikhaylov, Sergey Petrovich, and Anastasia Andreevna Shtyrlyaeva. "Consideration of the Influence of Carbonate Cement on the Accuracy of Prediction of Well Start-Up Flow Rates in Deep Reservoirs of the West Siberian Oil and Gas Basin on the Example of Reservoir U1 Formation." In SPE Symposium: Petrophysics XXI. Core, Well Logging, and Well Testing. SPE, 2021. http://dx.doi.org/10.2118/208422-ms.

Full text
Abstract:
Abstract Oil reservoirs are often affected by tectonic processes throughout their lifetime. Tectonic processes contribute to the impact on the formation of a number of mechanical and chemical factors. These factors change the composition and structure of the reservoir and this affects the reservoir properties of the reservoir. Deep-seated reservoirs experience a longer and more intense impact of tectonic processes. A more detailed study of the composition and properties of reservoirs for an accurate forecast of reservoir properties and their productivity potential is due to this. Standard log interpretation methods have been developed based on shallow strata. These methods do not allow taking into account secondary changes in the reservoir and make the calculations of the starting flow rates of wells reliable. J1 stratum West Wing on Nizhnevartovsky set is a prime example of this.
APA, Harvard, Vancouver, ISO, and other styles
5

Bonnaud, Etienne, and Jens Gunnars. "Three Dimensional Weld Residual Stress Simulations of Piping Butt Welds: Influence of Boundary Conditions and Start/Stop Positions on Axisymmetry." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63849.

Full text
Abstract:
Weld residual stress simulations have become an essential tool in structural integrity assessments. In piping, two dimensional axisymmetric simulations generally give good estimations of residual stresses but clearly cannot capture the three dimensional nature of the welding process: the start/stop effects and the constant change in mechanical restraint during a weld pass. In this study, three dimensional welding simulations have been carried out for piping butt welds, first on a dissimilar metal weld in a thin-walled pipe and second on a narrow gap weld in a thicker stainless steel pipe. The effects of mechanical boundary conditions and start/stop positions have been investigated and stress fields are shown to markedly deviate from axisymmetry. As an illustration, a fracture mechanical analysis of a partial internal surface crack reveals noticeable changes in critical crack sizes.
APA, Harvard, Vancouver, ISO, and other styles
6

Avetisyan, Grachik H., Vladimir B. Kulikov, Vitalij P. Kotov, Alexej K. Erkin, and Igor D. Zalevsky. "Quantum well infrared photodetector array grown by MOCVD using GAs/AlGaAS MQW." In Fifth Conference on Charge-Coupled Devices and CCD Systems, edited by Vladimir A. Karasev, Yuri A. Kuznetsov, and Victor A. Shilin. SPIE, 1996. http://dx.doi.org/10.1117/12.238219.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mohr, William, and Yu-Ping Yang. "Modeling of Tensile Residual Stresses Extending More Than 5 Weld Widths From Weld Joint." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28042.

Full text
Abstract:
Welding residual stresses around a cylindrically symmetric weld between two steel components, a necked steel forging and a uniform thickness plate, were modeled using a finite-element modeling approach. The modeling included a preheat period, a 22-pass weld and a limited cooling rate after welding, all with a sequential thermal and mechanical analysis approach. The configuration, with a J-groove bevel at the outside of the forging flange, allowed the flange to be joined to a thick steel plate. Welding residual stresses were large and tensile in the weld area. A region of surface residual tensile stress on the flange extended to the neck at more than 5 weld widths from the weld joint in a region that was not heated more than 100°C. Modifications of the welding to reduce the driving forces for residual stress changed the distribution near the weld, but did not greatly affect the remote stresses. A change of fixturing on the faying surface did significantly reduce the remote tensile stresses by more than 30%.
APA, Harvard, Vancouver, ISO, and other styles
8

Feldmann, Felix, Emad W. Al-Shalabi, and Waleed AlAmeri. "Carbonate Mineral Effect on Surface Charge Change During Low-Salinity Imbibition." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206013-ms.

Full text
Abstract:
Abstract Low-salinity waterflooding is a relatively simple and cheap improved oil recovery technique in which the reservoir salinity is optimized to increase oil recovery. Multivalent ion enriched as well as diluted brines have shown promising potential to increase oil production over conventional waterflooding. While the literature generally acknowledges that low-salinity improves oil recovery, the physical mechanisms behind low-salinity effects are still controversial. Surface charge change refers to a low-salinity mechanism in which modified brine is believed to cause a re-equilibrium of the carbonate surface potential. As a result of surface charge change, the rock wettability alters towards a more water-wetting state. This experimental study combines zeta potential, spontaneous imbibition, and contact angle measurements to highlight the effect of carbonate minerals on surface charge change. Initially, zeta potential measurements were conducted to compare the impact of five carbonate minerals (Indiana Limestone, Edward Limestone, Reservoir Limestone, Austin Chalk, and Silurian Dolomite) and brine compositions (Formation-water, Sea-water, and Diluted-sea-water) on carbonate surface charge. Moreover, the impact of potential determining ions (calcium, magnesium, and sulfate) on the mineral surface charge was investigated. The effect of carbonate minerals on spontaneous oil recovery was investigated by comparing the spontaneous imbibition of Formation-water, Sea-water, and Diluted-sea-water into the five carbonate minerals. Moreover, the wettability alteration during the spontaneous imbibition tests was quantified by conducting contact angle measurements. The brine-mineral zeta potential measurements were positive for Formation-water, slightly negative for Sea-water, and strongly negative for Diluted-sea-water. While calcium and magnesium ions promoted stronger positive electrical potentials, sulfate ions caused a zeta potential reduction. The magnitude of surface charge change was significantly different for the five tested carbonate minerals. Under the presence of Diluted-sea-water, the zeta potential measurements of Indiana Limestone and Austin Chalk resulted in strong negative electrical potentials. Reservoir Limestone and Edward Limestone showed less negative zeta potentials, while Silurian Dolomite and Diluted-sea-water resulted in slightly negative zeta potential results. Compared to Formation-water, Sea-water, and particularly Diluted-sea-water caused significant spontaneous oil recovery. The high spontaneous oil recovery of Diluted-sea-water and Indiana Limestone and Austin Chalk correlated with strong negative brine-mineral zeta potentials. Moderate spontaneous oil recovery was observed for the slightly negative zeta potential Sea-water and limestone/chalks systems. The contact angle measurements showed oil-wet contact angles under the presence of Formation-water, while the introduction of Sea-water and Diluted-sea-water promoted stronger water-wet contact angles. This work is one of the very few studies that investigates the effect of carbonate rock mineralogy on surface charge change and spontaneous oil recovery.
APA, Harvard, Vancouver, ISO, and other styles
9

Dhillon, Navdeep Singh, and Jayathi Y. Murthy. "Coupled Electro-Thermal-Phase Change Modeling of a Chalcogenide Switch." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13950.

Full text
Abstract:
A coupled electro-thermal-phase change numerical model is developed to model the threshold and memory switching processes in a chalcogenide switch based on phase change memory (PCM) technology. Coupled electrical and thermal transport coupled to phase change and crystallization kinetics are solved. Charge transport has been implemented using simplified carrier continuity equations with a threshold switching model for electrical conductivity. Heat transfer is modeled using a Fourier model, accounting for latent heat through a fixed-grid enthalpy formulation. Phase change is modeled using the Johnson-Mehl equations for crystallization kinetics. Thermal conductivity and electrical resistivity changes due to phase change are modeled using a local percolation model. The charge transport and circuit equations are fully coupled with the heat transfer and phase change models to accurately simulate the switching process. SET and RESET pulses are simulated to demonstrate that the model is able to capture the underlying physics well.
APA, Harvard, Vancouver, ISO, and other styles
10

Ju, Jang-Bog, Jae-il Jang, Woo-sik Kim, and Dongil Kwon. "The Effect of Microstructural Change on Fracture Behavior in Heat-Affected Zone of API 5L X65 Pipeline Steel." In 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-122.

Full text
Abstract:
Reliability evaluation of welded structures by mechanical testing of weld heat-affected zones (HAZs) has become general practice throughout the world. HAZs of steel welded joints show a gradient of microstructure from the fusion line to the unaffected base metal. This study is concerned with a correlation between the microstructural change and the fracture characteristics in HAZs of both seam and girth welds of API 5L X65 pipeline steel, which is generally used for natural gas transmission pipelines in Korea. The focus in present study was the investigation of macroscopic fracture behavior of the various regions within HAZ. Changes in microstructure and impact toughness were observed using synthetic HAZ specimens as well as actual HAZ specimens. To evaluate the macroscopic toughness of actual HAZ, Charpy V-notch impact test was performed.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Charge Weld"

1

Korinko, P., and D. David Maxwell. FILL STEM MANUFACTURING CHANGES AND PINCH WELD QUALIFICATIONS. Office of Scientific and Technical Information (OSTI), February 2008. http://dx.doi.org/10.2172/927165.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Korinko, P., and D. David Maxwell. PINCH WELD TESTING TO SUPPORT CHANGE IN MANUFACTURING OIL AT THE KCP. Office of Scientific and Technical Information (OSTI), February 2008. http://dx.doi.org/10.2172/927599.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Remington, S. M. St. Charles County well field monitoring project. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/7025198.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Remington, S. St. Charles county well field monitoring project. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/5658944.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Remington, S. St. Charles County well field monitoring project. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6999511.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dukhovnov, Denys, Joan Ryan, and Emilio Zagheni. The impact of demographic change on transfers of care and associated well-being. Rostock: Max Planck Institute for Demographic Research, May 2020. http://dx.doi.org/10.4054/mpidr-wp-2020-022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Pradeep Kumar, Kaavya. Climate Change Glossary. Indian Institute for Human Settlements, 2021. http://dx.doi.org/10.24943/ccgemthk02.2021.

Full text
Abstract:
Climate change is a complex subject with terms and definitions that can seem overwhelming to non-specialists. What is ‘albedo’? What does ‘radiative forcing’ mean? What does ‘geoengineering’ entail? As climate change impacts grow more frequent and intense, it is critical that journalists, in particular, are equipped with the right information when they report. This set of open-access multilingual glossaries aim to bridge the gap between research and the general public by compiling this comprehensive list of most frequently-used terms related to climate change. A majority of these terms have been sourced from the different IPCC reports as well as public platforms such as the BBC and the Climate Reality Project.
APA, Harvard, Vancouver, ISO, and other styles
8

Myrskylä, Mikko, and Rachel Margolis. Parental benefits improve parental well-being: evidence from a 2007 policy change in Germany. Rostock: Max Planck Institute for Demographic Research, August 2013. http://dx.doi.org/10.4054/mpidr-wp-2013-010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Curtis, Trisha, and Benjamin Montalbano. Completion Design Changes and the Impact on US Shale Well Productivity. Oxford Institute for Energy Studies, November 2017. http://dx.doi.org/10.26889/ei212017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bennett, Neil, Hsien-Hen Lu, and Younghwan Song. Welfare Reform and Changes in the Economic Well-Being of Children. Cambridge, MA: National Bureau of Economic Research, December 2002. http://dx.doi.org/10.3386/w9399.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Charge Weld' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography