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Journal articles on the topic "GT Advance"
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Harbola, S., and V. Coors. "SEASONALITY DEDUCTION PLATFORM: FOR PM<sub>10</sub>, PM<sub>2.5</sub>, NO, NO<sub>2</sub> AND O<sub>3</sub> IN RELATIONSHIP WITH WIND SPEED AND HUMIDITY." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences VI-4/W2-2020 (September 15, 2020): 71–78. http://dx.doi.org/10.5194/isprs-annals-vi-4-w2-2020-71-2020.
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Abstract. Human and ecosystem health is affected by the risk of air pollution. A comprehensive understanding of the parameters generating pollution and governing their nature in time is essential to devise functional policies focusing on minimising the concentration of the pollutants. The effect of pollution parameters on meteorological data and existing in between relationships, have been the focus of the researcher’s planning of better city future. Thorough study of resources utilisation is required for contributing to framing effective, sustainable development, government policies management, and advance public services convenience. For protecting the environmental quality, renewable resources like solar and wind are more incorporated in techniques supporting better city planning. This paper considers the hourly time series Particular Matter (PM) PM2.5 and PM10, Nitrogen Oxide (NO), and Nitrogen Dioxide (NO2), and Ozone (O3) along with measured wind flow and humidity. This study’s objective is to assess the temporal seasonality patterns of these parameters in Stuttgart, Germany. The temporal variations over the city center in Stuttgart are analysed using unsupervised approach to perform seasonal hierarchical clustering on a series of parameters NO, NO2, O3, PM10, and PM2.5, wind speed and humidity. Furthermore, the correlations between meteorological and pollution parameters are analysed using the Spearman rank correlation method. Moreover, a dashboard is developed to provide the user desired time frame visualisation of these parameters. Proposed work would provide empirical meaning and seasonality comparison among the above mentioned parameters combined with interactive dashboard support. The analyses of the presented results clearly demonstrates the relationship between air pollutants, wind, humidity together in combine temporal activities frame. Thus, it would help city planner and policies maker with advanced knowledge of seasonality for meteorological and pollution parameters conditions.
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,, Yunandra, Muhamad Syukur, and Dan Awang Maharijaya. "Seleksi dan Kemajuan Seleksi Karakter Komponen Hasil pada Persilangan Cabai Keriting dan Cabai Besar." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 45, no. 2 (2017): 169. http://dx.doi.org/10.24831/jai.v45i2.12312.
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<p><em>Selection is very important activity in plant breeding program. The purpose of this study was to obtain genetic information, heritability and expected genetic advance, and to compare the genetic advance expectations with the selection advance. The research was conducted from September 2013 to November 2015 at Research Station of Leuwikopo, Dramaga, Bogor. Distribution of F2 population data in this study was broader than that of F3 populations. Broad sense heritability estimated by F3 populations showed in agreement to that estimated by F2 population. Character of fruit weight, fruit length, pedicel length and yield had positive value of selection advance appropriate to the genetic advance expectations in F2 populations. The value of heritability estimate and genetic advance were high indicating that the phenotypic variances were controlled by action of additive genes.<br /><br />Keywords: genetic advance, heritability, selection advance<br /><br /></em></p>
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Friedmann, T. "Gene therapy for spinomuscular atrophy: a biomedical advance, a missed opportunity for more equitable drug pricing." Gene Therapy 24, no. 9 (2017): 503–5. http://dx.doi.org/10.1038/gt.2017.48.
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Priohutomo, Kusnindar, and Budy Rolly Yuwana. "Analisa Waktu Evakuasi Dengan Metode Advance Pada Kapal Perintis 1200 GT." Kapal 14, no. 2 (2017): 47. http://dx.doi.org/10.14710/kpl.v14i2.14626.
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Salah satu penyebab besarnya korban jiwa dalam sebuah kecelakaan kapal di jalur pelayaran adalah dikarenakan kurangnya informasi mengenai jalur atau rute evakuasi yang harus dilalui penumpang bila terjadi kecelakaan. Oleh sebab itu kajian mengenai jalur evakuasi utama didalam sebuah kapal saat terjadinya kecelakaan perlu dilakukan dengan cermat. Terutama untuk kapal yang mengangkut banyak penumpang seperti kapal perintis. Pada paper ini akan dibahas mengenai kajian waktu evakuasi penumpang di kapal dengan metode advance berdasarkan ketetapan dari IMO. Untuk proses simulasi menggunakan software Pathfinder 2015. Dari hasil simulasi yang dilakukan waktu embarkasi penumpang adalah 348.03 detik, sedangkan total waktu evakuasi penumpang adalah 2010.03 detik atau sekitar 33.5 menit
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Exworthy, Tim. "Psychiatric advance decisions – an opportunity missed." International Journal of Mental Health and Capacity Law 1, no. 11 (2014): 129. http://dx.doi.org/10.19164/ijmhcl.v1i11.155.
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<p align="LEFT">After a very long gestation the Mental Capacity Bill was published earlier this year. Among its proposals was the incorporation into statute of advance decisions. These are devices whereby a person, while retaining capacity, can make certain decisions regarding their future treatment for such a time as they have lost capacity and so are unable to make legally binding decisions about their own treatment. As the Bill is phrased, advance decisions only permit a person to refuse treatment. There is no provision for that person to use ADs to express a positive preference for particular forms of treatment. It will be argued this represents a missed opportunity to allow patients and clinicians to engage in a more constructive approach to treatment planning. Experience from the USA demonstrates psychiatric advance directives have a role to play in engaging psychiatric patients and promoting adherence to their treatment plans.</p><p align="LEFT">This paper will only address the use of AD in relation to mental health treatment, although it is recognised they have an application far wider than this, including decisions regarding life-sustaining treatment.</p>
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Ghori, H. U., M. Sohaib, Vivek Tiwari, and Manish Ahirwar. "Treatment outcome of postoperative radiotherapy for squamous cell carcinoma of the head and neck." International Journal of Otorhinolaryngology and Head and Neck Surgery 4, no. 1 (2017): 127. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20175612.
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<p class="abstract"><strong>Background:</strong> Though early stage malignancy of head and neck can be cured by surgery or radiotherapy, cure of patients with locally advanced disease continues to pose a therapeutic challenge. Loco regional failure is the major cause of death in head and neck cancer. As the cure of locally advance head and neck cancer is less than expectation, a combined modality approach is generally used in these type of patients. The combination of surgery, radiotherapy and chemotherapy can improve outcome in locally advance head and neck cancer.</p><p class="abstract"><strong>Methods:</strong> This observational study reviewed cancer patients reported in our hospital with the following inclusion criteria: primary head and neck cancer, treatment with radical surgery, and multiple nodal metastases. The prescribed dose of postoperative radiotherapy was 60–66 Gy. Patient characteristics, treatment parameters and clinical outcome were recorded. </p><p class="abstract"><strong>Results:</strong> The primary end point was overall survival, and the secondary endpoint was disease status.</p><p><strong>Conclusions:</strong> Concurrent postoperative administration of chemotherapy and radiotherapy is a way to intensify treatment for resectable high-risk head and neck tumors.</p>
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Kang, Leilei, Ping Xu, Peng Miao, and Jiayu Chu. "Recent advance in laser-induced chemical reactions investigated by <italic>in-situ</italic> Raman spectroscopy." SCIENTIA SINICA Chimica 47, no. 6 (2017): 713–23. http://dx.doi.org/10.1360/n032016-00241.
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Bely, Levti Norisa, Saiful Bahri, and Mukarramah Mustari. "Model Pembelajaran Advance Organizer: Dampak Terhadap Hasil Belajar Kognitif Peserta Didik." Indonesian Journal of Science and Mathematics Education 2, no. 2 (2019): 150–61. http://dx.doi.org/10.24042/ijsme.v2i2.4340.
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Abstract: The purpose of this study is 1) To find out whether there is a significant effect with the Advanced Organizer learning model 2) To improve the cognitive abilities of students on the subject of dynamic fluid Vocational High School. The method used in this study is quasi-experimental with the hypothesis that there is no significant influence on the cognitive abilities of students who are taught using advance organizer learning models so that the cognitive abilities of students are increased. The results of this study indicate that there is a significant influence on the cognitive abilities of students who are taught using an advanced organizer model so that the cognitive abilities of students increase. This can be seen from the results of the pretest and posttest in the experimental class has increased. Significant influence can be proven by the test results from the t-test analysis, where in the t-test analysis the value of t-count> t-table or significant value <significant level (0.05) is equal to 21,921> 2,045. While the increase in cognitive abilities of experimental class students can be seen from the results of the mean mean value of students at the pretest that is 40.16, an increase after the posttest results of the mean mean becomes 81.94. This means that there is a very good increase in the cognitive abilities of students due to the influence of the Advanced Organizer of Dynamic Fluid SMK models.Abstrak: Tujuan pada penelitian ini adalah 1) Untuk mengetahui apakah terdapat pengaruh yang signifikan dengan model pembelajaran Advance Organizer 2) Untuk meningkatkan kemampuan kognitif peserta didik pada pokok bahasan fluida dinamis SMK. Metode yang digunakan pada penelitian ini adalah quasi eksperimen dengan hipotesis ada atau tidak pengaruh yang signifikan terhadap kemampuan kognitif peserta didik yang diajar dengan menggunakan model pembelajaran advance organizer sehingga kemampuan kognitif peserta didik lebih meningkat. Hasil dari penelitian ini menunjukkan bahwa terdapat pengaruh yang signifikan terhadap kemampuan kognitif peserta didik yang diajar dengan menggunakan model advance organizer sehingga kemampuan kognitif peserta didik meningkat. Hal ini dapat dilihat dari hasil pretest dan posttest pada kelas eksperimen mengalami peningkatan. Pengaruh signifikan dapat terbukti dengan adanya hasil pengujian dari analisis Uji-t ,dimana pada analisis Uji-t nilai > atau nilai signifikan < taraf signifikan (0.05) yaitu sebesar 21.921 > 2.045. Sedangkan peningkatan kemampuan kognitif peserta didik kelas eksperimen dapat dilihat dari hasil rata-rata nilai mean peserta didik pada pretest yaitu 40.16, terjadi peningkatan setelah posttest hasil rata-rata nilai mean menjadi 81.94. Artinya terjadi peningkatan yang sangat baik pada kemampuan kognitif peserta didik akibat pengaruh dari model Advance Organizer pokok bahasan Fluida Dinamis SMK.
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Luo, Y., R. Francois, and S. E. Allen. "Sediment <sup>231</sup>Pa/<sup>230</sup>Th as a recorder of the rate of the Atlantic meridional overturning circulation: insights from a 2-D model." Ocean Science 6, no. 1 (2010): 381–400. http://dx.doi.org/10.5194/os-6-381-2010.
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Abstract. A two dimensional scavenging model is used to investigate the patterns of sediment 231Pa/230Th generated by the Atlantic Meridional Overturning Circulation (AMOC) and further advance the application of this proxy for ocean paleocirculation studies. The scavenging parameters and the geometry of the overturning circulation cell have been chosen so that the model generates meridional sections of dissolved 230Th and 231Pa consistent with published water column profiles and an additional 12 previously unpublished profiles measured in the North and Equatorial Atlantic. The processes that generate the meridional sections of dissolved and particulate 230Th, dissolved and particulate 231Pa, dissolved and particulate 231Pa/230Th, and sediment 231Pa/230Th are discussed in detail. The results indicate that the relationship between sediment 231Pa/230Th at any given site and the overturning circulation is very complex. They clearly show that constraining past changes in the strength and geometry of the AMOC requires an extensive data set and they suggest strategies to maximize information from a limited number of samples.
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Luo, Y., R. Francois, and S. E. Allen. "Sediment <sup>231</sup>Pa/<sup>230</sup>Th as a recorder of the rate of the Atlantic meridional overturning circulation: insights from a 2-D model." Ocean Science Discussions 6, no. 3 (2009): 2755–829. http://dx.doi.org/10.5194/osd-6-2755-2009.
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Abstract. A two dimensional scavenging-circulation model is used to investigate the patterns of sediment 231Pa/230Th generated by the Atlantic Meridional Overturning Circulation (AMOC) and further advance the application of this proxy for ocean paleocirculation studies. The scavenging parameters and the geometry of the overturning circulation cell have been chosen so that the model generates meridional sections of dissolved 230Th and 231Pa consistent with published water column profiles and an additional 12 previously unpublished profiles measured in the North and Equatorial Atlantic. The processes that generate the meridional sections of dissolved and particulate 230Th, dissolved and particulate 231Pa, dissolved and particulate 231Pa/230Th, and sediment 231Pa/230Th are discussed in detail. The results indicate that the relationship between sediment 231Pa/230Th at any given site and the overturning circulation is very complex. They clearly show that constraining past changes in the strength and geometry of the AMOC requires an extensive data set and they suggest strategies to maximize information from a limited number of samples.
Dissertations / Theses on the topic "GT Advance"
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Simeone, Bruno. "Mathematics and democracy recent advances in voting systems and collective choice ; with 50 tables." Berlin Heidelberg New York Springer, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2841845&prov=M&dok_var=1&dok_ext=htm.
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Davis, Jonathan Michael. "Diesel Engine Experimental Design and Advanced Analysis Techniques." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313526640.
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Srikanth, Sai Aswin. "Use of Electrical Coolant Pumps in Scania’s Cooling System." Thesis, KTH, Maskinkonstruktion (Avd.), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259681.
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The automotive industry is currently traversing through the electrification wave. Numerous manufacturers are directing focus to electrify their lineup and reduce emissions. In the frontier of heavy duty diesel trucks, electrification of auxiliary units remains an unexplored potential. An optimized cooling system functioning in sync with a controllable electric coolant pump attempts to reduce parasitic losses and emissions. The cooling flow requirements in challenging conditions may also be fulfilled. Although electric coolant pumps are found increasingly in passenger cars, the implication of independently operating them in a heavy duty diesel truck is an important objective to be explored. The purpose of this project is to generate different cooling system layouts coupled with electrical coolant pumps. The performance of these layouts is compared with the volume flows in a standard cooling system. Refined layouts which fulfill the cooling system requirements are chosen for verification. 1-D Simulation is used to correlate and verify the trends of the test rig data. The results show an adequate gain in the total volume flow across distinct layouts with the electric coolant pumps. However, numerous challenges are required to be overcome.<br>Bilindustrin befinner sig mitt i en våg av elektrifiering. Flertalet tillverkare fokuserar på att elektrifiera sitt produktutbud och att minska utsläppen. Inom forskningen kring tunga transporter med dieseldrivna lastbilar, är elektrifiering av kylsystemet ett outforskat område. Ett optimerat kylsystem som är reglerbart med en elektrisk kylvätskepump skulle potentiellt kunna minska energiförluster och utsläpp. Kravet på flödet av kylvätska vid utmanande driftsfall skulle också kunna bli bättre uppfyllda än för dagens system. Trots att det blir allt vanligare att personbilar har elektriska kylvätskepumpar, så har det inte utforskats vad det innebär att ha reglerbara elektriska kylvätskepumpar i dieseldriva lastbilar. Därför är detta ett viktigt område att utforska. Målet med detta projekt är att skapa olika kylsystemskoncept, där den elektriska kylvätskepumpen är en systemkomponent. Prestandan hos dessa principlösningar jämförs sedan med volymflödet i ett standard kylvätskesystem. Koncept som uppfyller kraven för kylvätskesystemet kommer att bli utvalda för vidare verifiering. 1-D simuleringar används för att hitta samband och verifiera mot trenderna som hittas i resultat från en testrigg. Resultaten visar en förbättring i det totala volymflödet för flera av lösningarna, som har en elektrisk kylvätskepump. Men det finns fortfarande flera utmaningar som behöver övervinnas.
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Shermak, S. Lee. "Living<=>Dying with metastatic breast cancer: women's accounts of living longer in smaller communities." Thesis, 2020. http://hdl.handle.net/1828/11798.
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As a life-limiting illness mediated by rapid advancements in biomedical technologies, metastatic breast cancer (MBC) now presents in increasingly unexpected ways where women are living longer. These women’s lives may not fit well with established healthcare and societal understandings of an advanced breast cancer, including disease progression and prognosis. This qualitative inquiry aims to think differently about women’s daily lives with an ongoing MBC. While also considering the underexplored context of these women living in smaller communities. I explored communities on Central Vancouver Island, which is on the west coast of British Columbia, Canada. The research question directing my inquiry was: how are women, who are living with MBC as a life-limiting illness over an extended period, produced as both living and dying subjects? Informing this research was a feminist relational materialist approach with a healthcare practitioner orientation, primarily informed by Braidotti. I used multiple data collection methods centred around sequential interviews with 14 women who had been living relatively well with MBC for at least two years.
Working with relational materialist and post qualitative principles, analysis disclosed the importance of temporal pulses and bodily transpositions in women’s lives. Temporal pulses speak to how time was laden with tensions such that a distinctive part of living with ongoing MBC was an embodied sense of fluctuating time. There was also the idea as to how, at any given moment, women could bodily know their illness and mortality through varying frequencies of the presence and/or absence of markers of living and dying, often at the same time. Bodily transpositions speak to how life-limiting illness was not so much about women moving from one set of circumstances to another as part of a clean-edged transition. Rather, the women navigated daily life with few set waymarkers. Within this context, ‘hope’ took on new forms and living with their advanced breast cancer became a kind of endurance demarcated by what I refer to as generative living.
These findings call into question the ways in which MBC gets talked about in categorical terms as palliative or end of life, and/or as chronic. Findings are an opportunity for healthcare practitioners, policymakers, and interdisciplinary leaders to further understand MBC specific to our contemporary context. Project findings renew discussions of how best to support women’s needs, including the ways MBC is talked about. There is also the opportunity to direct further research into MBC as an example of today’s shifting boundaries of living and dying (which I am framing as living<=>dying).<br>Graduate
Books on the topic "GT Advance"
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Schneider, Jörg, and Ton Vrouwenvelder. Introduction to safety and reliability of structures. 3rd ed. International Association for Bridge and Structural Engineering (IABSE), 1997. http://dx.doi.org/10.2749/sed005.
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<p>Society expects that buildings and other structures are safe for the people who use them or who are near them. The failure of a building or structure is expected to be an extremely rare event. Thus, society implicitly relies on the expertise of the professionals involved in the planning, design, construction, operation and maintenance of the structures it uses.<p>Structural engineers devote all their effort to meeting society’s expectations effi ciently. Engineers and scientists work together to develop solutions to structural problems. Given that nothing is absolutely and eternally safe, the goal is to attain an acceptably small probability of failure for a structure, a facility, or a situation. Reliability analysis is part of the science and practice of engineering today, not only with respect to the safety of structures, but also for questions of serviceability and other requirements of technical systems that might be impacted by some probability.<p>The present volume takes a rather broad approach to safety and reliability in Structural Engineering. It treats the underlying concepts of safety, reliability and risk and introduces the reader in a fi rst chapter to the main concepts and strategies for dealing with hazards. The next chapter is devoted to the processing of data into information that is relevant for applying reliability theory. Two following chapters deal with the modelling of structures and with methods of reliability analysis. Another chapter focuses on problems related to establishing target reliabilities, assessing existing structures, and on effective strategies against human error. The last chapter presents an outlook to more advanced applications. The Appendix supports the application of the methods proposed and refers readers to a number of related computer programs.<p>This book is aimed at both students and practicing engineers. It presents the concepts and procedures of reliability analysis in a straightforward, understandable way, making use of simple examples, rather than extended theoretical discussion. It is hoped that this approach serves to advance the application of safety and reliability analysis in engineering practice.<p>The book is amended with a free access to an educational version of a Variables Processor computer program. FreeVaP can be downloaded free of charge and supports the understanding of the subjects treated in this book.
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Zehnder, Pascal, and George N. Thalmann. Muscle-invasive bladder cancer. Edited by James W. F. Catto. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0078.
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In the United Kingdom, >4,000 people die of bladder cancer every year. This reflects around one-third of affected patients and occurs in those with primary metastatic disease, with invasion at presentation, and in persons whose tumour progresses to invasion from non-invasive disease. The outcome from invasive cancers has not dramatically altered over the last 30 years, due to a lack of screening programmes, a lack of advances in treatment, and the fact that many patients present with tumours at an advanced stage. Around 50% of patients with invasive disease die from bladder cancer despite radical treatment, suggesting the disease is metastatic at presentation. Cure is rarely possible in patients with locally advanced tumours and lymph node metastases. Therapeutic options include systemic chemotherapy and salvage radical treatment for responders or palliation. Following radical cystectomy for cancer, patients require lifelong follow-up for both oncologic and functional reasons.
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Webb, Jason A., and Arif H. Kamal. Palliative Oxygen Versus Room Air for Refractory Dyspnea (DRAFT). Edited by Nathan A. Gray and Thomas W. LeBlanc. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190658618.003.0017.
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Palliative oxygen therapy is used for treating dyspnea in patients with cancer and advanced cardiopulmonary diseases, however, small trials have suggested that circulating air may be just as effective. This international, multicenter, randomized controlled trial compared oxygen versus room air delivered by a nasal cannula for relief of dyspnea for patients with any life-limiting illness. Patients were adults >18 years of age, with PaO2 > 7.3kPa, on optimized therapies for their illness, and an expected survival of >1 month. The study demonstrated no clinically significant symptomatic benefit of palliative oxygen versus room air delivered via nasal cannula for seven days in patients with life-limiting illnesses and refractory dyspnea.
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Ajithkumar, Thankamma, Ann Barrett, Helen Hatcher, and Natalie Cook. Gastro-intestinal cancers. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199235636.003.0008.
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Oesophageal cancer is a common cancer in the UK with an annual incidence of 16.5 for men and 8.5 for women per 100,000 and >7000 new cases per year (ONS 2004). The incidence has risen steadily over the last 20 years mainly due to an increase in adenocarcinomas, whereas SCCs have decreased slightly. Despite advances in the treatment OS rates remain poor at <15% (ONS 2004)....
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Ferro, Charles J., and Khai Ping Ng. Recommendations for management of high renal risk chronic kidney disease. Edited by David J. Goldsmith. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199592548.003.0099.
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Poorer renal function is associated with increasing morbidity and mortality. In the wider population this is mainly as a consequence of cardiovascular disease. Renal patients are more likely to progress to end-stage renal disease, but also have high cardiovascular risk. Aiming to reduce both progression of renal impairment and cardiovascular disease are not contradictory. Focusing on the management of high-risk patients with proteinuria and reduced glomerular filtration rates, it is recommended that blood pressure should be kept below 140/90, or 130/80 if proteinuria is > 1 g/24 h (protein:creatinine ratio (PCR) >100 mg/mmol or 0.9 g/g). These targets may be modified according to age and other factors. Angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin receptor antagonists should form part of the therapy for patients with proteinuria > 0.5 g/24 h (PCR > 50 mg/mmol or 0.45 g/g). Use of ACEIs or angiotensin receptor blockers in patients with lower levels of proteinuria may be indicated in some patient groups even in the absence of hypertension, notably in diabetic nephropathy. Evidence that other agents that reduce proteinuria bring additional benefits is weak at present. The best studies of ‘dual-blockade’ with various combinations of ACEIs, ARBs, and renin inhibitors have shown additional hazard with little evidence of additional benefit. Hyperlipidaemia—regardless of lipid levels, statin therapy is indicated in secondary cardiovascular prevention, and in primary prevention where cardiovascular risk is high, noting that current risk estimation tools do not adequately account for the increased risk of patients with CKD. There is not substantial evidence that lipid lowering therapy impacts on average rates of loss of GFR in progressive CKD. Non-drug lifestyle interventions to reduce cardiovascular risk, including stopping smoking, are important for all. Acidosis—in more advanced CKD it is justified to treat acidosis with oral sodium bicarbonate. Diet—sodium restriction to < 100 mmol/day (6 g/day) and avoidance of excessive dietary protein are justified in early to moderate CKD. Recommendations to limit levels of protein to 0.8 g/kg body weight are suggested by some, but additional protective effects of this are likely to be slight in patients who are otherwise well managed. Low-protein diets may carry some risk. Lower-protein diets may however be used to prevent symptoms in advanced CKD not treated by dialysis.
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Horing, Norman J. Morgenstern. Thermodynamic Green’s Functions and Spectral Structure. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791942.003.0007.
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Multiparticle thermodynamic Green’s functions, defined in terms of grand canonical ensemble averages of time-ordered products of creation and annihilation operators, are interpreted as tracing the amplitude for time-developing correlated interacting particle motions taking place in the background of a thermal ensemble. Under equilibrium conditions, time-translational invariance permits the one-particle thermal Green’s function to be represented in terms of a single frequency, leading to a Lehmann spectral representation whose frequency poles describe the energy spectrum. This Green’s function has finite values for both t>t′ and t<t′ (unlike retarded Green’s functions), and the two parts G1> and G1< (respectively) obey a simple proportionality relation that facilitates the introduction of a spectral weight function: It is also interpreted in terms of a periodicity/antiperiodicity property of a modified Green’s function in imaginary time capable of a Fourier series representation with imaginary (Matsubara) frequencies. The analytic continuation from imaginary time to real time is discussed, as are related commutator/anticommutator functions, also retarded/advanced Green’s functions, and the spectral weight sum rule is derived. Statistical thermodynamic information is shown to be embedded in physical features of the one- and two-particle thermodynamic Green’s functions.
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Joyner, Alexandra, ed. Gene Targeting. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780199637928.001.0001.
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Since the publication of the first edition of Gene Targeting: A Practical Approach in 1993 there have been many advances in gene targeting and this new edition has been thoroughly updated and rewritten to include all the major new techniques. It provides not only tried-and-tested practical protocols but detailed guidance on their use and applications. As with the previous edition Gene Targeting: A Practical Approach 2e concentrates on gene targeting in mouse ES cells, but the techniques described can be easily adapted to applications in tissue culture including those for human cells. The first chapter covers the design of gene targeting vectors for mammalian cells and describes how to distinguish random integrations from homologous recombination. It is followed by a chapter on extending conventional gene targeting manipulations by using site-specific recombination using the Cre-loxP and Flp-FRT systems to produce 'clean' germline mutations and conditionally (in)activating genes. Chapter 3 describes methods for introducing DNA into ES cells for homologous recombination, selection and screening procedures for identifying and recovering targeted cell clones, and a simple method for establishing new ES cell lines. Chapter 4 discusses the pros and cons or aggregation versus blastocyst injection to create chimeras, focusing on the technical aspects of generating aggregation chimeras and then describes some of the uses of chimeras. The next topic covered is gene trap strategies; the structure, components, design, and modification of GT vectors, the various types of GT screens, and the molecular analysis of GT integrations. The final chapter explains the use of classical genetics in gene targeting and phenotype interpretation to create mutations and elucidate gene functions. Gene Targeting: A Practical Approach 2e will therefore be of great value to all researchers studying gene function.
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Turney, Ben, and John Reynard. Management of ureteric stones in pregnancy. Edited by John Reynard. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0029.
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Renal colic is the most common non-obstetric cause for abdominal pain and hospitalization during pregnancy. Ureteric stones occur in about 1 in 2,000 pregnancies, most (>80%) in the second and third trimesters. Primary management concerns are diagnostic foetal radiation exposure and the potential for adverse perinatal events arising either from the stone or from intervention. Indications for intervention are the same as for the non-pregnant patient, but are influenced by obstetric circumstances. Active treatment options may be temporizing (stent or nephrostomy) or definitive (ureteroscopic stone extraction). Historically, temporizing measures were the only recommended treatment option. However, potential problems associated with temporary drainage mechanisms include recurrent obstruction, infection, nephrostomy displacement, encrustation, infection, and pain. These factors may impact on pregnancy. In recent years, advances in surgical technology and technique have permitted definitive ureteroscopic management of stones during pregnancy.
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Ugarte-Gil, Manuel F., and Graciela S. Alarcón. History of systemic lupus erythematosus. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198739180.003.0001.
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The first description of cutaneous ulcerations consistent with systemic lupus erythematosus (SLE) has been attributed to Hippocrates. The term lupus first appeared in English literature in the tenth century. Until the nineteenth century, however, this term was used to describe different conditions. Osler first recognized that organ involvement may occur with or without skin involvement. With the discovery of LE cells and autoantibodies, the use of lupus murine models, and the recognition of familial aggregation and the importance of genetic factors, the pathogenesis of SLE started to be unravelled and allowed the definition of classification criteria. In parallel, the discovery of cortisone, the use of immunosuppressive drugs and antimalarials, the control of hypertension, and the availability of renal replacement therapy improved the prognosis of SLE from a 4-year survival of 51% to a 5-year survival >90%. Advances in genetics and targeted therapies will lead to better intermediate and long-term outcomes.
Book chapters on the topic "GT Advance"
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Sierpiński, Grzegorz. "Technologically Advanced and Responsible Travel Planning Assisted by GT Planner." In Contemporary Challenges of Transport Systems and Traffic Engineering. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43985-3_6.
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Fan, Yuanyuan, Qingzhong Liang, Zhenhua Cai, and Hui Li. "Evolutionary Antenna Design via Modified Normalized GT Algorithm." In Advances in Computation and Intelligence. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-92137-0_14.
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"The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions." In The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions, edited by Jason Schratwieser, Stephen G. Sutton, and Robert Arlinghaus. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874240.ch1.
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<i>Abstract</i> .—The World Recreational Fishing Conference represents the only scientific meeting that is truly global, attracting scientists, managers, industry representatives, policy makers, and other stakeholders to discuss pertinent issues in recreational fisheries. The Fifth World Recreational Fishing Conference was held in Dania Beach, Florida, on November 10–12, 2008. This book represents the peer-reviewed proceedings of the landmark conference. Chapters in this book cover a range of issues such as governance, social and biological management tools and issues, ethics, and novel survey methods to advance the science and management of recreational fisheries.
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"Pacific Salmon Environmental and Life History Models: Advancing Science for Sustainable Salmon in the Future." In Pacific Salmon Environmental and Life History Models: Advancing Science for Sustainable Salmon in the Future, edited by Cathy P. Kellon, Peter S. Rand, Xanthippppe Augerot, and Jon Bonkoskski. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874097.ch7.
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<em>Abstract.</em>—There is a great opportunity to advance our understanding of salmon life history modeling by expanding the use of quantitative data thereby improving model efficacy and precision. However, a lack of basic and consistent data documentation frustrates secondary researchers’ attempts to identify extant data and evaluate its suitability for use. We apply preliminary results of State of the Salmon’s <em>North Pacific Salmon Monitoring Activity Inventory</em>, to demonstrate the potential of simple metadata (data about data) to rapidly appraise data deficiencies. We focus on sockeye salmon <em>Oncorhynchus nerka </em>in Bristol Bay, Alaska using elementary but standardized information about long term, freshwater adult and juvenile abundance and age composition monitoring efforts in the region. We classify monitoring into either that of a metapopulation (Tier 2) or individual populations (Tier 3). To accommodate data on catch or harvest from coastal fisheries (e.g., test fisheries) that are often used as a measure of abundance or run timing, we established a Tier 1 (regional grouping); however, in this chapter we do not consider Tier 1 activities. At the Tier 2 level, spawner-to-spawner ratios can be developed for every one of the nine Bristol Bay sockeye stocks and stage-specific life tables, including juvenile stages, can be populated for two out of the nine—the Wood and Kvichak river systems. Each of these drainages has historic or contemporary, long term abundance and biological surveys for fry/parr, smolts, and adults. Moreover, routine adult estimates and biological sampling occurs at the Tier 3 level in these areas, largely due to the long standing research activities of the University of Washington’s Alaska Salmon Program. Given our current understanding of data needs in a variety of research areas, we also present a recommended set of ‘core’ metadata elements to facilitate evaluation of primary data for use by secondary researchers. Ultimately, it is hoped that this exercise will help generate more and improved documentation among those who conduct salmon monitoring. With concerted attention to documentation throughout the data life cycle, time and costs associated with salmon modeling science and other secondary research activities can be reduced and, accordingly, advance the scientific community’s contribution to salmon conservation.
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"Multispecies and Watershed Approaches to Freshwater Fish Conservation." In Multispecies and Watershed Approaches to Freshwater Fish Conservation, edited by Stephan J. Magnelia, Kevin B. Mayes, Megan G. Bean, Cindy L. Loeffler, and David D. Bradsby. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874578.ch12.
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<em>Abstract</em>.—The Colorado River of Texas originates in the northwest portion of the state and runs southeasterly across the environmentally sensitive Edwards Plateau ecoregion, eventually emptying into Matagorda Bay on the Gulf of Mexico. The Texas Parks and Wildlife Department (TPWD) and other conservation partners have worked for decades to conserve native fishes in the river and its associated estuary. The river and its tributaries are also the major water source for millions of people, and portions of the watershed are undergoing unprecedented human population growth and a concomitant increased demand for water. Drought, which is a frequent occurrence in Texas, exacerbates these effects. Providing adequate streamflow and water quality to conserve aquatic species while still fulfilling obligations for municipal, industrial, agricultural, hydropower, and recreational water use is increasingly challenging. Since the 1980s, the TPWD has promoted water management policies in the watershed to benefit aquatic life, conducted research to maintain a sound ecological environment for fish and other aquatic taxa, provided technical guidance and financial incentives to private landowners to improve land practices that benefit water quality and quantity, and improved public access to foster increased stewardship of the river. The TPWD has also collaborated with researchers to study the potential impacts of altered hydrology on two endemic, flow-dependent fish species, Guadalupe Bass <em>Micropterus treculii </em>and Blue Sucker <em>Cycleptus elongatus</em>. Two portions of the Colorado River watershed have been identified as native fish conservation areas in part for persistence of populations of these native fishes. Outcomes from these activities are now being leveraged using federally funded research and conservation delivery programs to further advance the conservation of native fish populations and other aquatic life in native fish conservation areas of the Colorado River watershed.
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Pluas Salazar, Rita Maricela, Germanico Renee Tovar Arcos, and Kerly Ángela Álvarez Cadena. "Academic E-Branding Focused on Higher Education Institutions." In Advances in Educational Marketing, Administration, and Leadership. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4930-8.ch006.
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Universities of the 21st century have been characterized by being in a stage of great boom in relation to technological development and virtual advances. For this reason, all the institutions have established an adequate use of this advance of science to be able to project their image as a company to the market. Thus, platforms are created where they contain all kinds of information about their services and other criteria so that the student can clearly visualize what each one of them offers. This chapter studies the significant differences between universities whose computer systems are aimed at promoting their corporate image. This discipline is known as e-branding, which means building a business identity and that, through it, the consumer can establish a connection that let you choose to get the services they offer. For this study, the universities that were evaluated corresponded to the Latin American and European context, using methods such as GT-metrix in order to measure the effectiveness of the official pages of each entity.
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"Advancing an Ecosystem Approach in the Gulf of Maine." In Advancing an Ecosystem Approach in the Gulf of Maine, edited by Jason S. Link and Alida Bundy. American Fisheries Society, 2012. http://dx.doi.org/10.47886/9781934874301.ch21.
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<i>Abstract</i> .—As we move towards an ecosystem approach to fisheries (EAF) in the Gulf of Maine (GoM), it is valuable to collectively gauge where we have been, where we are now, and where we anticipate we might be headed with respect to ecosystem modeling. We do so by providing a brief history of ecosystem modeling in the GoM region, focused on a set of network models at various points in time over the past 70 years. We then describe current and ongoing ecosystem modeling efforts in the GoM region, with a particular emphasis on how they are being used in a living marine resource (LMR) management context. We then discuss how such models could be used to advance an EAF in the near term with a focus on the appropriate application of classes of models for addressing various types of research and management questions. Finally, we highlight major lessons learned from our modeling endeavors in an LMR context in the GoM region, so that we and other regions around the world can continue to move towards an EAF.
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"The Law of the Tendential Fall in the General Rate of Profit > with the Advance of Capitalist Production." In Marx's Economic Manuscript of 1864-1865. BRILL, 2016. http://dx.doi.org/10.1163/9789004304550_005.
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"Multispecies and Watershed Approaches to Freshwater Fish Conservation." In Multispecies and Watershed Approaches to Freshwater Fish Conservation, edited by Eric R. Merriam, J. Todd Petty, and Cory T. Trego. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874578.ch17.
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<em>Abstract</em>.—Increasingly, fisheries managers must make important decisions in complex environments where rapidly changing landscape and climate conditions interact with historical impacts to influence resource sustainability. Successful fisheries management in this setting will require that we adapt traditional management approaches to incorporate information on these complex interacting factors—a process referred to as resilient fisheries management. Large-scale species distribution data and predictive models have the potential to enhance the management of freshwater fishes through improved understanding of how past, present, and future natural and anthropogenic factors combine to determine species vulnerability and resiliency. Here we describe a resilient fisheries management framework that provides guidance on how and when these models can be incorporated into traditional approaches to meet specific goals and objectives for resource sustainability. In addition to elucidating complex drivers of distributional patterns and change, species distribution models can inform the prioritization, application, and implementation of management activities such as restoration (e.g., instream habitat and riparian), protection (e.g., areas where additional land use would result in a change in species distribution), and regulations (e.g., harvest restriction) in a way that informs resiliency to land use and climate change. Although considerable progress has been made with respect to applying species distribution models to the management of Brook Trout <em>Salvelinus fontinalis </em>and other aquatic species, there are several areas where a more unified research and management effort could increase the ability of distribution models to inform resilient management. Future efforts should aim to improve (1) data availability, consistency (sampling methodology), and quality (accounting for detection); (2) partnerships among researchers, agencies, and managers; and (3) model accessibility and understanding of limitations and potential benefits to managers (e.g., incorporation into publicly available decision support systems). The information and recommendations provided herein can be used to promote and advance the use of models in resilient fisheries management in the face of continued large-scale land use and climate change.
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"From Catastrophe to Recovery: Stories of Fishery Management Success." In From Catastrophe to Recovery: Stories of Fishery Management Success, edited by Paul A. Kline, Thomas A. Flagg, Christine C. Kozfkay, Danny J. Baker, Desmond J. Maynard, and William C. McAuley. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874554.ch5.
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<i>Abstract</i>.â€â€In November 1991, the U.S. National Marine Fisheries Service listed Snake River Sockeye Salmon <i>Oncorhynchus nerka</i> as endangered under the U.S. Endangered Species Act. The last remnants of the Snake River stock return to Redfish Lake in the Sawtooth Valley in central Idaho, a 1,448-km freshwater migration through the Columbia, Snake, and Salmon rivers. In May 1991, about 6 months prior to formal listing, a decision was made by the Idaho Department of Fish and Game, National Marine Fisheries Service, and Shoshone-Bannock Tribes to collect Redfish Lake out-migrating Sockeye Salmon smolts and to retain any anadromous adults that returned to begin the Snake River Sockeye Salmon Recovery Program (hereafter, “Programâ€Â). In the ensuing 25 years, many actions have been taken to conserve the Redfish Lake population and to rebuild the wild, natural spawning fish. These include captive broodstock gene-rescue technologies for Sockeye Salmon, carrying-capacity evaluations, and the development of reintroduction strategies. Overall, the Program has resulted in more than 40 published papers that helped advance the science for recovery of this species and provided general guidance applicable to recovery attempts for other species. The Program reduced extinction risk for Redfish Lake Sockeye Salmon by amplifying adult returns from 16 fish during the decade of the 1990s to more than 7,000 fish in 2017 and by retaining the majority of genetic diversity (>95%) of the founder population. In this chapter, we describe the actions taken for success and the myriad of legal and political processes we encountered and navigated during the 25-year history of the project. Nonscientific issues created challenges equally as formidable as biological challenges faced. Lessons learned include the importance of clearly stated goals and objectives being frequently communicated to decision makers, the necessity of science panels for review and advice, the establishment of effective fish culture and biosecurity protocols, the establishment of a partnership of scientists and stakeholders, and conducting monitoring and evaluation to interpret the success of Program actions and to adaptively manage Program efforts. Last, we learned the importance of becoming engaged and vigilant over the legal, policy, and funding frameworks required for the Program to remain successful.
Conference papers on the topic "GT Advance"
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Ardura, Alba, Almudena Gonzalez-Sanz, Laura Clusa, Serge Planes, and Eva Garcia-Vazquez. "Beware of Oysters. Rapid Advance of Non-Native Species in Tropical Pacific Islands <sup>†</sup>." In 1st International Electronic Conference on Biological Diversity, Ecology and Evolution. MDPI, 2021. http://dx.doi.org/10.3390/bdee2021-09517.
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Cruse, T. A., J. F. Unruh, Y. T. Wu, and S. V. Harren. "Probabilistic Structural Analysis for Advanced Space Propulsion Systems." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-127.
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The paper reports on recent extensions to ongoing research into probabilistic structural analysis modeling of advanced space propulsion system hardware. The advances concern probabilistic dynamic loading, and probabilistic nonlinear material behavior. In both cases, the reported work represents a significant advance in the state-of-the-art for these topics. Random, or probabilistic loading is normally concerned with the loading described in power spectral density (PSD) terms. The current work describes a method for incorporating random PSD’s along with random material properties, damping, and structural geometry. The probabilistic material response is concerned with the prediction of nonlinear stress-strain behavior for physical processes that can be linked to the original microstructure of the material. Such variables as grain size and orientation, grain boundary strength, etc. are treated as random, initial variables in generating stochastic stress-strain curves. The methodology is demonstrated for a creep simulation.
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Corman, James C., and Douglas M. Todd. "Technology Considerations for Optimizing IGCC Plant Performance." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-358.
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The integrated gasification combined cycle (IGCC) concept is gaining acceptance as the Clean Coal technology with the best potential for continued improvement in performance and continued reduction in capital cost. In large part this potential will be realized by optimizing the integration of power generation and fuel conversion subsystems and by exploiting advances in gas turbine technology. This paper discusses the impact that technology advances in the gas turbine combined cycle are having on the commercial viability of the IGCC concept. Technical innovations in such areas as coal gas combustion, plant control, and system integration will ensure that IGCC technology will continue to advance well into the future.
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Çobanoğlu, Cihan. "The Power of Interdisciplinary Research: 1+1 > 2." In International Conference on Eurasian Economies. Eurasian Economists Association, 2015. http://dx.doi.org/10.36880/c06.01445.
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National Academies defines interdisciplinary research as “a mode of research by teams or individuals that integrates information, data, techniques, tools, perspectives, concepts, and/or theories from two or more disciplines or bodies of specialized knowledge to advance fundamental understanding or to solve problems whose solutions are beyond the scope of a single discipline or area of research practice.” This presentation will outline the power of interdisciplinary research in the context of tourism research. Today’s problems are so complex that it requires different brains, approaches, knowledge sets, methods to work together and explore what has never been seen before. However, conducting interdisciplinary research has many challenges from adopting to work with different styles to finding a reputable outlet to publish the outcomes.
 
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Tsujikawa, Y., K. Ohtani, K. Kaneko, T. Watanabe, and S. Fujii. "Conceptual Recovery of Exhaust Heat From a Conventional Gas Turbine by an Inter-Cooled Inverted Brayton Cycle." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-378.
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Improvements in industrial gas turbine performance have been made in last decade. Advances in the gas turbine technologies such as higher turbine inlet temperature, materials, and manufacturing techniques justify the development of new combined or cogeneration cycle schemes, with more advance heat recovery capabilities. This paper describes the performance analysis of an Inverted Brayton Heat Recovery (IBHR) cycle, which is combined with conventional gas turbine and worked as a bottoming cycle. The optimum characteristics have been calculated and it is shown that this cycle is superior to the conventional combined cycle and cogeneration systems in terms of thermal efficiency and specific output. The main feature of this new concept is that the inverted Brayton cycle with inter-cooling is introduced. Further, a new estimating function, “the emission coefficient of carbon-dioxide” has been successfully introduced to assess the environmental compatibility.
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Tolpadi, Anil K., Chander Prakash, Harjit Hura, and Hukam C. Mongia. "Advanced Combustion Code: Overall Description, Prediction of a Jet Diffusion Flame and Combustor Flowfields." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-229.
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The Computational Fluid Dynamics (CFD) code that has been used extensively for combustion applications within GE is CONCERT. CONCERT is a fully elliptic body-fitted CFD code based on pressure correction techniques that solves the three-dimensional (3-D) flow in an aircraft engine combustor. The geometry representation is given by single block structured grids. This paper gives an overview and presents some early applications of the Advanced Combustion Code (ACC) which is currently being developed to further advance the use of Computational Combustion Dynamics (CCD) at GE. ACC will have complex geometry representation capability via unstructured multiblock grids, and will comprise of a number of advanced combustion/spray/turbulence models that are being developed in a modularized fashion. The ACC solver is based on a fully implicit pressure correction algorithm with colocated grids. The development of ACC is taking place by comparing, as far as possible, the results against corresponding CONCERT calculations. Results of a systematic evaluation of various combustion models within the framework of a non-swirling jet diffusion flame using ACC will be presented. Full 3-D combustion calculations have been performed in the dome of single and multiple annular combustors: the corresponding flow and temperature fields and emissions predictions will be presented.
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Kostura, Zak, Matthew C. J. Clark, and James R. Olson. "Necessity and Invention: Leveraging a Megaproject to Advance the use of Computational Design." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.1108.
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<p>The roof of the New International Airport for Mexico City is a lightweight steel shell structure and an architectural centerpiece of the new 4,432 hectare greenfield airport development. Visually exposed and structurally independent from the building beneath, it supports a 500,000m2 envelope that reaches a peak height of 45m above ground level and maximum span-to-depth ratio of nearly 60:1. While it is comprised of several subassemblies, including a 2-layer tetrahedral ball-node space frame and single-layer welded CHS shells, the roof was designed and detailed with the overt intent of achieving seamless visual continuity across the entire system. It is a mile long, nearly half a mile wide and is achieved with no movement joints. This paper focuses on the design approach, structural hazards and technical solutions for addressing global buckling and validity of welded CHS connections throughout the system.</p>
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Nogami, S., N. Ando, Y. Noguchi, K. Takahashi, T. Iwamiya, and Y. Hattori. "Trial Operations of Unit No. 1 Group 690 MW Combined Cycle Power Plant of Shin-Oita Power Station." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-354.
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Kyushu Electric Power Co., Inc., in constructing the recently completed first phase of the No. 1 Group of Shin-Oita Power Plant, Oita Prefecture (Kyushu Island), achieved further improvements over previous combined cycle plants, especially in the area of plant overall operation. It is composed of six combined cycle power units of the single-shaft, non-reheat type, based on Hitachi-GE MS7001E gas turbines, with a total output of 690 MW. Trial operations of the first unit began in May, 1990. Commercial operations of the first unit began in November 1990, and the last unit in June, 1991. The NO.1 Group incorporates two major advances over previous combined cycle plants. The first advance is a two-stage multiple nozzle dry-type low-NOx combustor. This combustor is a new development for keeping the level of NOx emissions below 62.5 ppm (16% O2 at gas turbine exhaust). The second advance is a new functionally and hierarchically distributed digital control system. By the control system, the plant was designed to bring the following notable features: 1 The individual units can be started and stopped automatically from the load dispatching directive center at the head office. 2 The plant can be operated for high efficiency with short starting and stopping time and large load variations. 3 Plant operating characteristics for emergency operations can be improved remarkably, for instance, load run back operations and fast cut back operation, etc. The results of trial operations have shown that the output per unit is about 0.5 to 4.2% higher, and the unit efficiency about 1.9 to 3.7% higher, than the planned values (all percentages relative), and tangible improvements and starting characteristics and load fluctuation are also satisfactory with the specified target values in the overall operation of the plant over that of previous combined cycle power plants. This plant has satisfactorily been operated since the start of commercial operation.
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Corman, James C. "H Gas Turbine Combined Cycle Technology and Development Status." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-011.
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A revolutionary step has been taken in the development of the Next Advance in Power Generation Systems — “H” Technology Combined Cycle. This new gas turbine combined cycle system increases thermal performance to the 60% level by increasing gas turbine operating conditions to 2600°F (1430°C) at a pressure ratio of 23 to 1. This represents a significant increase in operating temperature for the gas turbine. However, the potential for single digit NOx levels (based upon 15% O2 in the exhaust) has been retained. The combined effect of performance increase and environmental control is achieved by an innovative closed loop steam cooling system which tightly integrated the gas turbine and steam turbine cycles. Although a significant advance has been taken in performance, the new power generation system has been configured with a substantial number of proven concepts and technology programs are ongoing to validate the new features. The technical activities which support the introduction of the new turbine system have reached a point in the development cycle where the results are integrated into the design methods. This has permitted the “H” Technology to achieve a design readiness status and the first unit will be under test in late 1997.
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Boyd, G. L., M. L. Easley, and D. M. Kreiner. "AGT101: Ceramic Gas Turbine Development." In ASME 1987 International Gas Turbine Conference and Exhibition. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/87-gt-228.
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A major technical effort has resulted in recent testing of the all-ceramic hot section in the DOE/NASA sponsored AGT101 Advanced Gas Turbine. This testing was preceded by critical component developments including ceramic structures design evolution to satisfactorily pass the peak stress start transients with 25-percent margin. Ceramic structures test evaluation at 2500F (1371C), ceramic combustor operation on various fuels and ceramic static seal leakage reduction have been necessary for the ceramic engine test. The most challenging ceramic component, the turbine rotor, has undergone successful fabrication development, but further process and material development are necessary to meet the high temperature durability goals. The 100-hour engine test of the ceramic structures to 2100F (1149C), and the later 85-hour engine test of the all-ceramic hot section to 2200F (1204C) have been important program accomplishments. Full speed operation to 100,000 rpm and a ceramic rotor tip speed of 2300 ft/sec (701 m/s) has been demonstrated. The ability of these experimental gas turbines to operate in a regime where the unique properties of structural ceramics can be exploited offers the opportunity to further advance ceramic technology.