Добірка наукової літератури з теми "Standardized parameters"
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Статті в журналах з теми "Standardized parameters"
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Greenland, Sander, and George Maldonado. "The interpretation of multiplicative-model parameters as standardized parameters." Statistics in Medicine 13, no. 10 (May 30, 1994): 989–99. http://dx.doi.org/10.1002/sim.4780131002.
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Greenland, Sander. "Estimating standardized parameters from generalized linear models." Statistics in Medicine 10, no. 7 (July 1991): 1069–74. http://dx.doi.org/10.1002/sim.4780100707.
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Nelder, J. A., Sander Greenland, and R. G. Newcombe. "Estimating standardized parameters from generalized linear models." Statistics in Medicine 11, no. 4 (1992): 559–60. http://dx.doi.org/10.1002/sim.4780110418.
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Kubota, Junichiro. "Anti-cook book approach, pro-standardized treatment parameters." Journal of Cosmetic Dermatology 3, no. 4 (December 2004): 242. http://dx.doi.org/10.1111/j.1473-2130.2004.00131.x.
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Todorovic, Arsenije, and Bojana Kalenjuk. "Standardized recipe and quality parameters for Pirot traditional bread." Pirotski zbornik, no. 41 (2016): 1–25. http://dx.doi.org/10.5937/pirotzbor1641001t.
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Ben-Shachar, Mattan, Daniel Lüdecke, and Dominique Makowski. "effectsize: Estimation of Effect Size Indices and Standardized Parameters." Journal of Open Source Software 5, no. 56 (December 23, 2020): 2815. http://dx.doi.org/10.21105/joss.02815.
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Shu, Lianjie, Wei Jiang, and Kwok-Leung Tsui. "A standardized scan statistic for detecting spatial clusters with estimated parameters." Naval Research Logistics (NRL) 59, no. 6 (July 24, 2012): 397–410. http://dx.doi.org/10.1002/nav.21493.
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Damodhar M, Gajanan, and Tushar Ramkrishna Deshmukh. "Standardized Hip Implant by Cluster Analysis of Anthropometry Parameters of Femur." Journal of Medical Sciences 19, no. 1 (December 15, 2018): 11–16. http://dx.doi.org/10.3923/jms.2019.11.16.
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Koskin, Sergey Alekseevich, and Ivan Ruslanovich Stepanets. "Standardized ophthalmic tests for evaluating reading parameters: a brief historical review." Ophthalmology journal 13, no. 4 (December 15, 2020): 47–55. http://dx.doi.org/10.17816/ov50885.
Повний текст джерелаАнотація:
In the review, the analysis of the most common ophthalmic standardized tests for evaluating reading was carried out: BaileyLovie Word Reading Charts, MNREAD Acuity Chart, Radner reading chart, SmithKettlewell Reading Test (SKread), IReST, Salzburg Reading Desk, Ramulu test, Radner paragraph optotypes, Balsam AlabdulkaderLeat (BAL) chart, Chinese Reading Acuity Charts (C-READ), chart for reading threshold and reading speed evaluation by T.S. Egorova. The following parameters were considered: maximum reading speed, reading threshold, reading acuity, reading accessibility index, threshold reading speed. Recovering the ability to read fluently is one of the criteria for assessing the success of treatment, as well as quality of life for patients of various age groups
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Yang, Xiaocui, Liang Chen, Xinmin Shen, Panfeng Bai, Sandy To, Xiaonan Zhang, and Zhizhong Li. "Optimization of geometric parameters of the standardized multilayer microperforated panel with finite dimension." Noise Control Engineering Journal 67, no. 3 (May 1, 2019): 197–209. http://dx.doi.org/10.3397/1/376718.
Повний текст джерелаАнотація:
Standardized multilayer microperforated panel fabricated by laser beam machining of the spring steel was proposed for noise reduction in this study. Geometric parameters of the standardized multilayer microperforated panel, which include diameter of the hole, thickness of the panel, distance between the neighbor holes, and length of the cavity, were optimized for the better sound absorption performance. Sound absorption coefficient of the standardized multilayer microperforated panel was theoretically modeled based on the Maa's theory. The optimization of geometric parameters of the standardized multilayer microperforated panel was obtained by the Cuckoo search algorithm, and the finite dimension of 30 mm was treated as the additional constraint condition. Preliminary verification of the obtained optimal parameters was conducted through the constructed finite element simulation model. Actual sound absorption coefficients of the standardized multilayer microperforated panels with layer number of 1 to 4 were measured by standing wave method, which were consistent with theoretical data and simulation data, and the corresponding average values in the frequency range of 100â–“6000 Hz were 57.45%, 70.85%, 71.99%, and 72.28%, respectively. By theoretical modeling, parameter optimization, simulation, and experimental validation, an effective method was proposed to develop practical sound absorbers, which would promote their applications in noise reduction.
Дисертації з теми "Standardized parameters"
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Hánová, Kristína. "Využití klasických analytických technik při kontrole základních parametrů kvality vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216486.
Повний текст джерелаАнотація:
Standard analytical technics are used by the inspection of basic parameters of wine quality in the prezented graduation theses. Theoretical patr contains short description of viniculture history. Description of elementary bunch of grapes stage of processing and wine production from stum pressing untill bottling follow. There is short description of wine diseases and wine defekt, too. Attention paid to quality assessment. Experimental part is divided to 2 parts. The first part contains determination of four wines qualitative parameters value. Analysis are focused on final wine processing phase, e.g. wine filtration, wine clarification and stabilisation, wine bottling. Data evaluation of these four sort of wine get no basic parameters differences. Parameters value differences are small but fundamentaly conducive to wine enhance quality.
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Ніжевський, Ілля Вікторович. "Удосконалення методів модернізації і контролю параметрів заземлювального пристрою міських підстанцій". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32565.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.14.02 – електричні станції, мережі і системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017.
Дисертація присвячена актуальній науково-практичної проблеми пошуку і розробки нових способів для вимірювання опору ЗП, розробки нових конструкцій ЗП, що дозволяють спростити реконструкцію ПС, а також створення і вдосконалення математичних моделей і програм для розрахунку електричних характеристик ЗП довільних конструкцій. Аналіз результатів обстеження існуючих ЗП ПС, виявив серйозні порушення, які призводять до відхилення параметрів від норми і до необхідності модернізації ЗП ПС. Показано, що модернізація ЗП призводить до відновлення його нормованих параметрів. Розроблено математичні моделі ЗП простих дворівневих конструкцій з горизонтальних або кільцевих електродів. В результаті дослідження електричного поля виявлено, що потенціал на поверхні землі над центром квадратного заземлювача може бути вище, ніж над електродом. Удосконалено математичну модель складного дворівневого ЗП ПС, розроблений метод розрахунку його електричних характеристик. Проведено дослідження впливу глибини закладення сітки верхнього рівня ЗП ПС, товщини шару зволоження, просихання або промерзання ґрунту і конструкції ЗП на його електричні характеристики. Виконано теоретичне обґрунтування методу та розроблено спосіб вимірювання опору ЗП ПС в умовах щільної забудови території. Метод застосуємо при будь-якому характері неоднорідності ґрунту, будь-яких розмірах і конфігурації ЗП і довільному розміщенні вимірювальних електродів без відшукання точки нульового потенціалу. Експериментально досліджені електричні характеристики дворівневого ЗП ПС методом фізичного моделювання в електролітичній ванні. Отримані результати показали хороший збіг з результатами розрахунків.Dissertation for the degree of Ph.D., specialty 05.14.02 – power stations, networks and systems. – National Technical University "Kharkiv Polytechnic Institute", Kharkov, 2017. The dissertation is devoted to the actual and practical problem of search and development of new methods for measurement of resistance of the grounding devices; developments of new designs of the grounding devices allowing to simplify reconstruction of substations; creation and enhancement of mathematical models and programs for calculation of electric characteristics of the grounding devices of any designs. The analysis of the results of the inspection of existing grounding devices of substations revealed serious violations that lead to deviation of parameters from the norm and to the need for modernization of grounding devices of substations. It is shown that the modernization of grounding devices leads to the restoration of its normalized parameters. Mathematical models of grounding devices of simple two-level structures of horizontal or ring electrodes are developed. As a result of the investigation of the electric field, it is revealed that the potential on the surface of the ground above the center of the square grounding electrode can be higher than above the electrode. The mathematical model of complex two-level grounding devices of substations is enhanced. The method of its electrical characteristics calculating is developed. The influence of the depth of the grid of the upper level of the grounding devices of the substations, the thickness of the humidification layer, the drying or freezing of the soil and the design of the grounding devices on its electrical characteristics was studied. Based on the theoretical substantiation of the method, a technique for measuring the resistance of grounding devices of substations in conditions of dense building of the territory is developed. The method is applicable for any kind of ground heterogeneity, any size and configuration of grounding devices and arbitrary placement of measuring electrodes without finding a zero potential point. Electric characteristics two-level the grounding devices of substations are experimentally researched by method of physical modeling in an electrolytic bathtub. The received results showed good coincidence to results of calculations.
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Ніжевський, Ілля Вікторович. "Удосконалення методів модернізації і контролю параметрів заземлювального пристрою міських підстанцій". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32563.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.14.02 – електричні станції, мережі і системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017.
Дисертація присвячена актуальній науково-практичної проблеми пошуку і розробки нових способів для вимірювання опору ЗП, розробки нових конструкцій ЗП, що дозволяють спростити реконструкцію ПС, а також створення і вдосконалення математичних моделей і програм для розрахунку електричних характеристик ЗП довільних конструкцій. Аналіз результатів обстеження існуючих ЗП ПС, виявив серйозні порушення, які призводять до відхилення параметрів від норми і до необхідності модернізації ЗП ПС. Показано, що модернізація ЗП призводить до відновлення його нормованих параметрів. Розроблено математичні моделі ЗП простих дворівневих конструкцій з горизонтальних або кільцевих електродів. В результаті дослідження електричного поля виявлено, що потенціал на поверхні землі над центром квадратного заземлювача може бути вище, ніж над електродом. Удосконалено математичну модель складного дворівневого ЗП ПС, розроблений метод розрахунку його електричних характеристик. Проведено дослідження впливу глибини закладення сітки верхнього рівня ЗП ПС, товщини шару зволоження, просихання або промерзання ґрунту і конструкції ЗП на його електричні характеристики. Виконано теоретичне обґрунтування методу та розроблено спосіб вимірювання опору ЗП ПС в умовах щільної забудови території. Метод застосуємо при будь-якому характері неоднорідності ґрунту, будь-яких розмірах і конфігурації ЗП і довільному розміщенні вимірювальних електродів без відшукання точки нульового потенціалу. Експериментально досліджені електричні характеристики дворівневого ЗП ПС методом фізичного моделювання в електролітичній ванні. Отримані результати показали хороший збіг з результатами розрахунків.Dissertation for the degree of Ph.D., specialty 05.14.02 – power stations, networks and systems. – National Technical University "Kharkiv Polytechnic Institute", Kharkov, 2017. The dissertation is devoted to the actual and practical problem of search and development of new methods for measurement of resistance of the grounding devices; developments of new designs of the grounding devices allowing to simplify reconstruction of substations; creation and enhancement of mathematical models and programs for calculation of electric characteristics of the grounding devices of any designs. The analysis of the results of the inspection of existing grounding devices of substations revealed serious violations that lead to deviation of parameters from the norm and to the need for modernization of grounding devices of substations. It is shown that the modernization of grounding devices leads to the restoration of its normalized parameters. Mathematical models of grounding devices of simple two-level structures of horizontal or ring electrodes are developed. As a result of the investigation of the electric field, it is revealed that the potential on the surface of the ground above the center of the square grounding electrode can be higher than above the electrode. The mathematical model of complex two-level grounding devices of substations is enhanced. The method of its electrical characteristics calculating is developed. The influence of the depth of the grid of the upper level of the grounding devices of the substations, the thickness of the humidification layer, the drying or freezing of the soil and the design of the grounding devices on its electrical characteristics was studied. Based on the theoretical substantiation of the method, a technique for measuring the resistance of grounding devices of substations in conditions of dense building of the territory is developed. The method is applicable for any kind of ground heterogeneity, any size and configuration of grounding devices and arbitrary placement of measuring electrodes without finding a zero potential point. Electric characteristics two-level the grounding devices of substations are experimentally researched by method of physical modeling in an electrolytic bathtub. The received results showed good coincidence to results of calculations.
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Chang, Kuei-Hsiung, and 張貴雄. "Estimations of Parameters under a Skew-Normal Model and Asymptotic Confidence Intervals for the Mean of a Population with Standardized Skew-Normal Error." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/64434829685386730742.
Повний текст джерелаАнотація:
碩士國立東華大學
應用數學系
99
The assumption of normality is widely applied in statistical models, however it is sometimes hard to be justified when analyzing real data. The skew normal distribution is therefore proposed as an extension of the normal distribution that includes a skewness parameter. Despite its many probabilistic properities being derived, there are still certain difficulties in statistical inferences under skew normal models. In particular, the complicated form of the likelihood function under a skew normal model causes numerical issues in finding maximum likelihood estimators (MLE) of parameters. In this study, we first study the choice of a crucial constant k to the two methods provided in Monti (2003) to ease above mentioned numerical difficulty in finding maximum likelihood estimators for skew normal parameters; k=n the sample size is used by Monti. The problem is scrutinized, first, under exponential, normal models where MLE's are known, then, of course, under the skew normal model. Our simulation results indicate that these two methods give better estimators in terms of mean squared error, with choices of k≠n for many of our studied cases, where some are under the skew normal model. Thus, taking into account our findings, the selection k=n taken in Monti (2003) is seriously questioned. Next, in this work, we take on the statistical inference issue, under a skew normal model, from a basic but important framework. More precisely, we provide one-sided or two-sided asymptotic confidence intervals for the mean of a population with standardized skew normal error distribution. Based on theoretical derivations and simulation results, we find that the performance of two-sided confidence interval is satisfactory for moderate to large sample sizes. Also, the coverage probabilities of confidence intervals, especially one-sided, vary drastically with the skewness parameters. Finally, we illustrate how to apply the asymptotic two-sided confidence interval for the population mean under a skew normal model to analyze the health care expenditure data from MEPS, which is analyzed, from confidence interval aspect, in Yu (2005) under normal, gamma, and lognormal models. The results we have here indicate that, successfully, we implement the skew normal model for real data analyses, and better off, our asymptotic two-sided confidence interval has higher coverage probabilities than those considered in Yu (2005) for reasonable sample sizes.
Книги з теми "Standardized parameters"
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Lei, Yuan. Ventilator Control Parameters. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198784975.003.0009.
Повний текст джерелаАнотація:
‘Ventilator Control Parameters’ looks at the individual ventilator settings, which are largely used to quantitatively define the properties of mechanical breaths. Following on from the previous discussion of essential variables, this chapter describes their implementation in the form of controls. This chapter begins by discussing the confusing and non-standardized terminology used for control parameters, providing a list of controls used on major ventilators. Common controls include rate, pressure and flow triggers, inspiratory time, I:E ratio, peak flow, flow cycle, tidal volume, pressure control or pressure support, PEEP, FiO2, rise time, flow pattern, and specific controls for biphasic modes. The chapter includes normal values and uses of the controls.
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Chapple, Christopher R., and Altaf Mangera. Urgency incontinence and overactive bladder. Edited by Christopher R. Chapple. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0040.
Повний текст джерелаАнотація:
Overactive bladder (OAB) is very prevalent and may be very bothersome. In this chapter, we describe the various definitions associated with this condition, its assessment and management. The definitions for lower urinary tract symptoms have been standardized by the International Continence Society. OAB is a symptomatic diagnosis after all other pathology has been excluded. Important assessments include a frequency volume chart and in some cases urodynamic studies. Here we describe the important parameters which should be sought from a frequency volume chart. In addition, the relationship to the urodynamic diagnosis provided by a cystometry study is explained. Thereafter we discuss the therapeutic options for OAB which include conservative measures, antimuscarinics, beta-3 agonists, intravesical botulinum toxin, neuromodulation, and surgery. The various management options including lifestyle changes, alpha antagonists, 5-alpha reductase inhibitors, antimuscarinics, desmopressin and surgery are also described.
Частини книг з теми "Standardized parameters"
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Tamburrelli, C., C. Anile, A. Mangiola, B. Falsini, and P. Palma. "CSF dynamic parameters and changes of optic nerve diameters measured by standardized echography." In Documenta Ophthalmologica Proceedings Series, 101–9. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1846-0_2.
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Jamshidian, Mortaza, and Peter M. Bentler. "Improved Standard Errors of Standardized Parameters in Covariance Structure Models: Implications for Construct Explication." In Problems and Solutions in Human Assessment, 73–94. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4397-8_4.
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Hesse, A., B. Hoppe, A. Classen, and W. Vahlensieck. "Treatment of Calcium-Oxalate Urolithiasis with Alkali Citrate: Effects on Urinary Parameters in Patients on Standardized and Free Diets." In Urolithiasis, 813–15. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0873-5_258.
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Pohlmann, Andreas, Kaixuan Zhao, Sean B. Fain, Pottumarthi V. Prasad, and Thoralf Niendorf. "Experimental Protocol for MRI Mapping of the Blood Oxygenation-Sensitive Parameters T2* and T2 in the Kidney." In Methods in Molecular Biology, 403–17. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-0978-1_23.
Повний текст джерелаАнотація:
AbstractRenal hypoxia is generally accepted as a key pathophysiologic event in acute kidney injury of various origins, and has also been suggested to play a role in the development of chronic kidney disease. Here we describe a step-by-step experimental protocol for indirect monitoring of renal blood oxygenation in rodents via the deoxyhemoglobin sensitive MR parameters T2* and T2—a contrast mechanism known as the blood oxygenation level dependent (BOLD) effect. Since an absolute quantification of renal oxygenation from T2*/T2 remains challenging, the effects of controlled and standardized variations in the fraction of inspired oxygen are used for bench marking. This MRI method may be useful for investigating renal blood oxygenation of small rodents in vivo under various experimental (patho)physiological conditions.This chapter is based upon work from the COST Action PARENCHIMA, a community-driven network funded by the European Cooperation in Science and Technology (COST) program of the European Union, which aims to improve the reproducibility and standardization of renal MRI biomarkers. This experimental protocol chapter is complemented by two separate chapters describing the basic concept and data analysis.
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Schäfer, Jens, and Jürgen Fleischer. "Optimized High Precision Stacking of Fuel Cell Components for Medium to Large Production Volumes." In Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021, 27–37. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-74032-0_3.
Повний текст джерелаАнотація:
AbstractPEM fuel cells are well established in a number of niche markets. However, due to low production volume and manufacturer-specific designs, the assembly has been carried out manually most of the time. With new fields of application being exploited there is a rising demand for production systems. As there is no standardized design or material, production systems are often custom-made, thus being inflexible to design changes or different products. In combination with a volatile demand the need for flexible and scalable systems arises. In this paper special attention is paid onto pick and place operations of the catalyst coated membrane (CCM). Design criteria of a vacuum gripper are derived from the material properties. To meet the further requirements for a high position accuracy in an automated assembly the impact of process parameters onto the repeatability is investigated to identify optimization trends. The requirements and investigations lead to a conceptual assembly system that is able to cover several steps in fuel cell production.
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Meirbekova, R., O. Awayssa, G. M. Haarberg, and G. Saevarsdottir. "Adapting Modern Industrial Operation Parameters in a Standardized Laboratory Cell for Measuring Current Efficiency for Aluminium Deposition: Unexpected Challenges and Lessons Learned." In Light Metals 2020, 637–43. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36408-3_86.
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Bizzarro, A., L. Mansi, P. F. Rambaldi, S. Di Martino, A. De Bellis, N. Rosa, and G. Cennamo. "A new approach to the study of Graves’ ophthalmopathy: standardized A-scan echography and octreotide scintigraphy as possible parameters for disease activity." In Documenta Ophthalmologica Proceedings Series, 365–70. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5802-2_43.
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Klemm, P., I. Aykara, and U. Lange. "Water-Filtered Infrared A Irradiation in Axial Spondyloarthritis: Heat for Lower Back Pain." In Water-filtered Infrared A (wIRA) Irradiation, 233–43. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92880-3_20.
Повний текст джерелаАнотація:
AbstractThe effect of serial locally applied wIRA (sl-wIRA) in patients with axial spondyloarthritis (axSpA) is described: time of onset and duration of pain reduction, changes in disease activity and functionality, and changes at the molecular level (cytokines).Seventy-one patients with axSpA receiving an inpatient 7-day multimodal rheumatologic complex therapy (MRCT) were randomized into two groups: 35 patients with standardized MRCT (control group = CG) and 36 patients (intervention group = IG) with additive serial sl-wIRA (2 irradiations/day, total of 12 applications) of the back region.In IG, a significant pain reduction compared to daily baseline values was observed on days 1, 2, and 6 and compared to CG. There was a significant improvement of the global health and functional parameters in IG, a significant reduction of disease activity, and a significant drop in TNF-α serum levels, also significantly different to CG. Levels of IL-1, -6, -10 remained unchanged.sl-wIRA, as part of an MRCT in axSpA patients, caused a significant pain decrease on days 2 and 6, allowing an analgesics reduction. Improvement in the general state of health was noted. Decreasing serum levels of TNF-α may explain, at the molecular level, the subjective pain relief.
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Bellamy, Nicholas. "Standardised Procedures for Outcome Measurement and Parameters for Calculating Sample Size for Antirheumatic Drug Studies." In Musculoskeletal Clinical Metrology, 193–251. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2218-4_21.
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Maguire, D. J., A. S. Addison, T. J. Harvey, R. H. Mortimer, and G. A. Cannell. "A Comparison of Parameters Used to Standardize Results From In Vitro Perfusions of Human Placentae." In Advances in Experimental Medicine and Biology, 457–62. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3404-4_51.
Повний текст джерелаТези доповідей конференцій з теми "Standardized parameters"
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Reynoso-Mejía, Carlos A., Sarahí Rosas-Gozalez, Iván Díaz-Meneses, and Nora E. Kerik Rotenberg. "Effect of reconstruction parameters and ROI definition on standardized uptake value quantification in tumors." In MEDICAL PHYSICS: Fourteenth Mexican Symposium on Medical Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4954130.
Повний текст джерела
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Barkowsky, Marcus, Jing Li, Taehwan Han, Sungwook Youn, Jiheon Ok, Chulhee Lee, Christer Hedberg, et al. "Towards standardized 3DTV QoE assessment: cross-lab study on display technology and viewing environment parameters." In IS&T/SPIE Electronic Imaging, edited by Andrew J. Woods, Nicolas S. Holliman, and Gregg E. Favalora. SPIE, 2013. http://dx.doi.org/10.1117/12.2004050.
Повний текст джерела
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Over, H. H., A. Igelmund, H. Zerres, Y. Gue´rout, and H. Kockelmann. "Web-Enabled Database for Gasket Parameters." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1878.
Повний текст джерелаАнотація:
The available technique of a Web-enabled material database was adapted to a new Gasket Data Bank (Gasket-DB) in the frame of an European research project PERL (Pressure Equipment, Reduction of Leak rate: gasket parameters measurements). Main content are gasket characteristics determined on all gasket types defined in the new European gasket standard series EN 1514, part 1 to 7: • actual gasket parameters in ENV 1591-2 (public access), • proposed gasket parameters to define more reliable values (restricted access), • certified manufacturers gasket data (restricted access), • gasket parameter ranges (public access). Data retrieval is providing intelligent user guidance. Data entry is carried out by Joint Research Centre (JRC) Petten, NL, by means of standardized format (Excel file with different sheets, reflecting the table structure of the database). The prototype database and the user interface can easily be extended and customized to the needs and requirements of the engineering gasket society, e.g. link to customer documentation, databases, services like design calculation tools.
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Beza´k, Peter, Vladimi´r Danisˇka, and Ivan Reha´k. "Detailed Standardized Decommissioning Parameters Calculation for Larger Technological Aggregates and Relevant Buildings in Nuclear Power Plants Using the OMEGA Code." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40126.
Повний текст джерелаАнотація:
The computer code OMEGA was developed for evaluation and optimisation of decommissioning project planning. It implements the standardised cost structure PSL (Proposed Standardised List) developed by IAEA, OECD/NEA, EC [1], as the universal structure for calculation and optimisation of decommissioning scenarios. Dismantling of technological systems especially in radiation ambient is the most important among decommissioning activities.
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Kallolimath, Sharan, and Jiang Zhou. "A Study on the Dynamic Response in Standardized Drop Test." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89728.
Повний текст джерелаАнотація:
For past several years, industries are carrying out board level drop tests to calibrate JEDEC board and improve on simulation in order to quantify the solder joint reliability performance of their products. It has not only become a difficult to simulate exact drop condition but also a challenging task to capture some of the important parameters such as board flexural rigidity, stiffness, resulting in non-uniform strain distribution throughout the test board. Previous simulations reveal unreliable stresses on all 15 components during predominate mode, which resulted in grouping of the components by location for performing reliability analysis. In addition, current experimental test procedures are not only expensive but also time consuming. In order to reduce cost and time, predictive analytical models were developed to understand drop behavior and also the key factors effecting solder joint failures. The drop impact simulation was performed using the different pulse time duration input function by analytical Method and evaluate response characteristics of the JEDEC board system. In this paper parametric study is done in order to bring more realistic drop condition and to quantify stress /strain distribution throughout the test board independent from standoff region by analyzing the system as simplified continuous beam system with sine impact pulse with the consideration of singular value (predominate mode) of the natural frequency. In addition, FEA simulation is also performed by developing JEDEC global/local model to simulate the realistic drop test condition. Direct acceleration method is adopted and no ring phenomenon is validated. By adjusting the input pulse period from 1.0 to 2.5 times the system period reveal further increase in the maximum peeling stress and board surface strain due no ring effect. In order to match the current test case, the magnitude of board input acceleration is reduced to the current drop conditions to understand and improve in the efficiency of the test and to capture more stress strain data in all the components. Close forms of theoretical and analytical results were correlated with the results of current JEDEC finite element global model.
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Bamberger, Judith Ann, Carl W. Enderlin, Michael J. Minette, and Langdon K. Holton. "Approach for Configuring a Standardized Vessel for Processing Radioactive Waste Slurries." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-10572.
Повний текст джерелаАнотація:
A standardized vessel design is being considered at the Waste Treatment and Immobilization Plant (WTP) that is under construction at Hanford, Washington. The standardized vessel design will be used for storing, blending, and chemical processing of slurries that exhibit a variable process feed including Newtonian to non-Newtonian rheologies over a range of solids loadings. Developing a standardized vessel is advantageous and reduces the testing required to evaluate the performance of the design. The objectives of this paper are to: 1) present a design strategy for developing a standard vessel mixing system design for the pretreatment portion of the waste treatment plant that must process rheologically and physically challenging process streams, 2) identify performance criteria that the design for the standard vessel must satisfy, 3) present parameters that are to be used for assessing the performance criteria, and 4) describe operation of the selected technology. Vessel design performance will be assessed for both Newtonian and non-Newtonian simulants which represent a range of waste types expected during operation. Desired conditions for the vessel operations are the ability to shear the slurry so that flammable gas does not accumulate within the vessel, that settled solids will be mobilized, that contents can be blended, and that contents can be transferred from the vessel. A strategy is presented for adjusting the vessel configuration to ensure that all these conditions are met.
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Dygert, Joseph, Melissa Morris, and Patrick Browning. "Recommendation of Experimental Setup and use of Standardized Electrohydrodynamic Dimensionless Parameters for Optimization of a Dielectric Barrier Discharge Flow Control Device." In SAE 2014 Aerospace Systems and Technology Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-01-2101.
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Trübestein, G., M. Ludwig, M. Wilgalis, R. Trübestein, and S. Popov. "FIBRINOLYTIC THERAPY WITH STREPTOKINASE AND UROKINASE IN DEEP VEIN THROMBOSIS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643001.
Повний текст джерелаАнотація:
336 patients with acute 1-6 day old, and subacute, 1-3 week old deep vein thrombosis were treated with streptokinase (SK) or urokinase (UK) up to April 1, 1985. 175 patients were included in the SK group, 161 patients in the UK group. A standardized SK-heparin and the standardized UK-heparin dosage scheme with 100.000 IU SK/h or 100.000 IU UK/ h were used. In patients with acute deep vein thrombosis a complete recanalisation could be achieved in 67% and a partial recanalisation in 25% with the standardized SK scheme; a complete recanalisation could be achieved in 46%, and a partial recanalisation in 30% with the standardized UK scheme.Since April 1, 1985 we use the ultra high SK dosage scheme, with an initial dose of 250.000 IU SK/h and a maintenance dose of 1.500.000 IU SK/h over.6 hours. So far 28 patients were treated in this way. The results show, that with an ultra high SK-dosage scheme a complete recanalisation could be achieved in 46% and a partial recanalisation in 25% in 1-6 day old deep vein thromboses. The results of both the SK schemes and the UK scheme are discussed in accordance with the haemostaseologica1 parameters.
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Cheng, Boyle C., Daniel J. Cook, Matt Yeager, Bin Lu, and Donald M. Whiting. "Combinations of Biomechanical Metrics Involving Single and Multi Level Lumbar Posterior Dynamic Spinal Treatments." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80061.
Повний текст джерелаАнотація:
The subtle effects of motion preservation devices are comparatively more difficult to detect based wholly on the range of motion (RoM) parameter, despite the historical success in characterizing fixation devices. Additional approaches such as descriptive facet techniques, i.e., facet translations analysis, and newly defined metrics, i.e., interpedicular displacement (ID) must first be established, verified and standardized. Ideally, more complete biomechanical parameters would facilitate clinical understanding of specific new devices. The recent focus in our lab has been to measure the RoM in conjunction with other parameters, including ID, to more completely characterize a lumbar spine treated with a posterior dynamic systems (PDS). Furthermore, understanding the construct and which components dominate overall tissue response is important for PDS systems.
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Bora, Bhaskor J., and Ujjwal K. Saha. "On the Attainment of Optimum Injection Timing of Pilot Fuel in a Dual Fuel Diesel Engine Run on Biogas." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20162.
Повний текст джерелаАнотація:
The race among the different nations to attain supremacy has given rise to twin crisis: depletion of fossil fuel reserves and degradation of environment. Every nation wants to increase the per capita income by producing more power. In order to achieve this feat, each nation has to burn huge amounts of fossil fuels causing an increase in the emission of greenhouse gases. In this regard, renewable energy can be a panacea to the above mentioned problems. Biogas, one form of biomass energy, has an immense potential as a renewable fuel. This biogas can be used successfully in diesel engines for the generation of power. However, in order to achieve an optimum efficiency, the operating parameters of the biogas run dual fuel engine have to be standardized. In such an engine, injection timing of the pilot fuel is one of the important operational parameters that greatly affects the engine performance. In view of this, in the present paper, an attempt has been made to standardize the injection timing of pilot fuel a biogas run dual fuel diesel engine on the basis of its performance and emission characteristics of. Experimental investigation demonstrates an improvement in efficiency and a reduction in emissions at the injection timing of 29° before top dead centre.
Звіти організацій з теми "Standardized parameters"
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Rycroft, Taylor, Kerry Hamilton, Charles Haas, and Igor Linkov. A quantitative risk assessment method for synthetic biology products in the environment. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41331.
Повний текст джерелаАнотація:
The need to prevent possible adverse environmental health impacts resulting from synthetic biology (SynBio) products is widely acknowledged in both the SynBio risk literature and the global regulatory community. However, discussions of potential risks of SynBio products have been largely speculative, and the attempts to characterize the risks of SynBio products have been non-uniform and entirely qualitative. As the discipline continues to accelerate, a standardized risk assessment framework will become critical for ensuring that the environmental risks of these products are characterized in a consistent, reliable, and objective manner that incorporates all SynBio-unique risk factors. Current established risk assessment frameworks fall short of the features required of this standard framework. To address this, we propose the Quantitative Risk Assessment Method for Synthetic Biology Products (QRASynBio) – an incremental build on established risk assessment methodologies that supplements traditional paradigms with the SynBio risk factors that are currently absent and necessitates quantitative analysis for more transparent and objective risk characterizations. The proposed framework facilitates defensible quantification of the environmental risks of SynBio products in both foreseeable and hypothetical use scenarios. Additionally, we show how the proposed method can promote increased experimental investigation into the likelihood of hazard and exposure parameters and highlight the parameters where uncertainty should be reduced, leading to more targeted risk research and more precise characterizations of risk.
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Alexander, Timothy, and Ole Seehausen. Diversity, distribution and community composition of fish in perialpine lakes. "Projet Lac" synthesis report. Eawag, 2021. http://dx.doi.org/10.55408/eawag:24051.
Повний текст джерелаАнотація:
Projet Lac was a large project conducted by Eawag and the University of Bern to quantitatively survey, for the first time, whole-lake fish communities in the large and deep lakes in and around the European Alps using multiple, standardised sampling methods. Starting in 2010, in total 35 lakes were investigated across Switzerland, Italy, France, Germany and Austria, with more than 106 fish species recorded. This report brings together key findings, compares fish communities among lakes, investigates their relationship to environmental parameters, and provides an overview of drivers of biodiversity and community structure in this important ecosystem.
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Henderson, Tim, Mincent Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: Chihuahuan Desert Inventory & Monitoring Network. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2285306.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities which may threaten or influence their stability. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) which represent a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies, bedding properties, thickness, geographic distribution, and other factors. If a new mappable geologic unit is identified, it may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2005). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section of the unit is designated as the type section or type locality (see Definitions). The type section is an important reference section for a named geologic unit which presents a relatively complete and representative profile for this unit. The type or reference section is important both historically and scientifically, and should be recorded such that other researchers may evaluate it in the future. Therefore, this inventory of geologic type sections in NPS areas is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The documentation of all geologic type sections throughout the 423 units of the NPS is an ambitious undertaking. The strategy for this project is to select a subset of parks to begin research for the occurrence of geologic type sections within particular parks. The focus adopted for completing the baseline inventories throughout the NPS was centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network level activities (inventory, monitoring, research, data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The network approach is also being applied to the inventory for the geologic type sections in the NPS. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory and Monitoring Network (GRYN) as the pilot network for initiating this project. Through the research undertaken to identify the geologic type sections within the parks of the GRYN, methodologies for data mining and reporting on these resources was established. Methodologies and reporting adopted for the GRYN have been used in the development of this type section inventory for the Chihuahuan Desert Inventory & Monitoring Network. The goal of this project is to consolidate information pertaining to geologic type sections which occur within NPS-administered areas, in order that this information is available throughout the NPS...
4
Henderson, Tim, Vincent Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: Northern Colorado Plateau Inventory & Monitoring Network. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2285337.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities which may threaten or influence their stability. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) which represent a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies, bedding properties, thickness, geographic distribution, and other factors. If a new mappable geologic unit is identified, it may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2005). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section of the unit is designated as the type section or type locality (see Definitions). The type section is an important reference section for a named geologic unit which presents a relatively complete and representative profile. The type or reference section is important both historically and scientifically, and should be available for other researchers to evaluate in the future. Therefore, this inventory of geologic type sections in NPS areas is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The documentation of all geologic type sections throughout the 423 units of the NPS is an ambitious undertaking. The strategy for this project is to select a subset of parks to begin research for the occurrence of geologic type sections within particular parks. The focus adopted for completing the baseline inventories throughout the NPS was centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network level activities (inventory, monitoring, research, data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The network approach is also being applied to the inventory for the geologic type sections in the NPS. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory and Monitoring Network (GRYN) as the pilot network for initiating this project. Through the research undertaken to identify the geologic type sections within the parks of the GRYN methodologies for data mining and reporting on these resources was established. Methodologies and reporting adopted for the GRYN have been used in the development of this type section inventory for the Northern Colorado Plateau Inventory & Monitoring Network. The goal of this project is to consolidate information pertaining to geologic type sections which occur within NPS-administered areas, in order that this information is available throughout the NPS...
5
Henderson, Tim, Vincent Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: Klamath Inventory & Monitoring Network. National Park Service, July 2021. http://dx.doi.org/10.36967/nrr-2286915.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities which may threaten or influence their stability. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) which represent a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies, bedding properties, thickness, geographic distribution, and other factors. If a new mappable geologic unit is identified, it may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2005). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section of the unit is designated as the type section or type locality (see Definitions). The type section is an important reference section for a named geologic unit which presents a relatively complete and representative profile. The type or reference section is important both historically and scientifically, and should be protected and conserved for researchers to study and evaluate in the future. Therefore, this inventory of geologic type sections in NPS areas is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The documentation of all geologic type sections throughout the 423 units of the NPS is an ambitious undertaking. The strategy for this project is to select a subset of parks to begin research for the occurrence of geologic type sections within particular parks. The focus adopted for completing the baseline inventories throughout the NPS was centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network level activities (inventory, monitoring, research, data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The network approach is also being applied to the inventory for the geologic type sections in the NPS. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory and Monitoring Network (GRYN) as the pilot network for initiating this project. Through the research undertaken to identify the geologic type sections within the parks of the GRYN methodologies for data mining and reporting on these resources were established. Methodologies and reporting adopted for the GRYN have been used in the development of this type section inventory for the Klamath Inventory & Monitoring Network. The goal of this project is to consolidate information pertaining to geologic type sections which occur within NPS-administered areas, in order that this information is available throughout the NPS to inform park managers...
6
Henderson, Tim, Vincent Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: Mojave Desert Inventory & Monitoring Network. National Park Service, December 2021. http://dx.doi.org/10.36967/nrr-2289952.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities that may threaten or influence their stability and preservation. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) that represent a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies, bedding properties, thickness, geographic distribution, and other factors. Mappable geologic units may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2005). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section or exposure area of the unit is designated as the type section or other category of stratotype (see “Definitions” below). The type section is an important reference exposure for a named geologic unit which presents a relatively complete and representative example for this unit. Geologic stratotypes are important both historically and scientifically, and should be available for other researchers to evaluate in the future.. The inventory of all geologic stratotypes throughout the 423 units of the NPS is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The focus adopted for completing the baseline inventories throughout the NPS was centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (e.g., geology, hydrology, climate), biological resources (e.g., flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network-level activities such as inventory, monitoring, research, and data management. Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory & Monitoring Network (GRYN) as the pilot network for initiating this project. Through the research undertaken to identify the geologic stratotypes within the parks of the GRYN methodologies for data mining and reporting on these resources were established. Methodologies and reporting adopted for the GRYN have been used in the development of this report for the Mojave Desert Inventory & Monitoring Network (MOJN). The goal of this project is to consolidate information pertaining to geologic type sections that occur within NPS-administered areas, in order that this information is available throughout the NPS to inform park managers and to promote the preservation and protection of these important geologic landmarks and geologic heritage resources. The review of stratotype occurrences for the MOJN shows there are currently no designated stratotypes for Joshua Tree National Park (JOTR) or Manzanar National Historic Site (MANZ); Death Valley...
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Henderson, Tim, Vincet Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: North Coast and Cascades Inventory & Monitoring Network. National Park Service, March 2022. http://dx.doi.org/10.36967/nrr-2293013.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities which may threaten or influence their stability and preservation. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) that form a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies (rock types), bedding properties, thickness, geographic distribution, and other factors. Mappable geologic units may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2021). In most instances, when a new geologic unit (such as a formation) is described and named in the scientific literature, a specific and well-exposed section or exposure area of the unit is designated as the stratotype (see “Definitions” below). The type section is an important reference exposure for a named geologic unit that presents a relatively complete and representative example for this unit. Geologic stratotypes are important both historically and scientifically, and should be available for other researchers to evaluate in the future. The inventory of all geologic stratotypes throughout the 423 units of the NPS is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The focus adopted for completing the baseline inventories throughout the NPS was centered on the 32 inventory and monitoring (I&M) networks established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network-level activities (inventory, monitoring, research, and data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory and Monitoring Network (GRYN) as the pilot network for initiating this project. Through the research undertaken to identify the geologic stratotypes within the parks of the GRYN methodologies for data mining and reporting on these resources were established. Methodologies and reporting adopted for the GRYN have been used in the development of this report for the North Coast and Cascades Inventory & Monitoring Network (NCCN). The goal of this project is to consolidate information pertaining to geologic type sections that occur within NPS-administered areas, in order that this information is available throughout the NPS to inform park managers and to promote the preservation and protection of these important geologic landmarks and geologic heritage resources. The review of stratotype occurrences for the NCCN shows there are currently no designated stratotypes for Fort Vancouver National Historic Site (FOVA), Lewis and Clark National Historical Park (LEWI), or San Juan...
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Henderson, Tim, Vincent Santucci, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: Central Alaska Inventory & Monitoring Network. National Park Service, May 2022. http://dx.doi.org/10.36967/nrr-2293381.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that park resources are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities which may threaten or influence their stability and preservation. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) that form a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies (rock types), bedding properties, thickness, geographic distribution, and other factors. Mappable geologic units may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2021). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section or exposure area of the unit is designated as the stratotype (see “Definitions” below). The type section is an important reference exposure for a named geologic unit that presents a relatively complete and representative example for this unit. Geologic stratotypes are important both historically and scientifically, and should be available for other researchers to evaluate in the future. The inventory of all geologic stratotypes throughout the 423 units of the NPS is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The focus adopted for completing the baseline inventories throughout the NPS is centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network level activities (inventory, monitoring, research, data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory and Monitoring Network (GRYN) as the pilot network for initiating this project (Henderson et al. 2020). Through the research undertaken to identify the geologic stratotypes within the parks of the GRYN methodologies for data mining and reporting on these resources were established. Methodologies and reporting adopted for the GRYN have been used in the development of this report for the Arctic Inventory & Monitoring Network (ARCN). The goal of this project is to consolidate information pertaining to geologic type sections that occur within NPS-administered areas, in order that this information is available throughout the NPS to inform park managers and to promote the preservation and protection of these important geologic landmarks and geologic heritage resources. The review of stratotype occurrences for the ARCN shows there are currently no designated stratotypes for Cape Krusenstern National Monument (CAKR) and Kobuk Valley National Park (KOVA)...
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Henderson, Tim, Vincent Santucciq, Tim Connors, and Justin Tweet. National Park Service geologic type section inventory: San Francisco Bay Area Inventory & Monitoring Network. National Park Service, May 2022. http://dx.doi.org/10.36967/nrr-2293533.
Повний текст джерелаАнотація:
A fundamental responsibility of the National Park Service (NPS) is to ensure that the resources of the National Park System are preserved, protected, and managed in consideration of the resources themselves and for the benefit and enjoyment by the public. Through the inventory, monitoring, and study of park resources, we gain a greater understanding of the scope, significance, distribution, and management issues associated with these resources and their use. This baseline of natural resource information is available to inform park managers, scientists, stakeholders, and the public about the conditions of these resources and the factors or activities that may threaten or influence their stability and preservation. There are several different categories of geologic or stratigraphic units (supergroup, group, formation, member, bed) that form a hierarchical system of classification. The mapping of stratigraphic units involves the evaluation of lithologies (rock types), bedding properties, thickness, geographic distribution, and other factors. Mappable geologic units may be described and named through a rigorously defined process that is standardized and codified by the professional geologic community (North American Commission on Stratigraphic Nomenclature 2021). In most instances when a new geologic unit such as a formation is described and named in the scientific literature, a specific and well-exposed section or exposure area of the unit is designated as the stratotype (see “Definitions” below). The type section is an important reference exposure for a named geologic unit that presents a relatively complete and representative example for this unit. Geologic stratotypes are important both historically and scientifically, and should be available for other researchers to evaluate in the future. The inventory of all geologic stratotypes throughout the 423 units of the NPS is an important effort in documenting these locations in order that NPS staff recognize and protect these areas for future studies. The focus adopted for completing the baseline inventories throughout the NPS is centered on the 32 inventory and monitoring networks (I&M) established during the late 1990s. The I&M networks are clusters of parks within a defined geographic area based on the ecoregions of North America (Fenneman 1946; Bailey 1976; Omernik 1987). These networks share similar physical resources (geology, hydrology, climate), biological resources (flora, fauna), and ecological characteristics. Specialists familiar with the resources and ecological parameters of the network, and associated parks, work with park staff to support network-level activities (inventory, monitoring, research, data management). Adopting a network-based approach to inventories worked well when the NPS undertook paleontological resource inventories for the 32 I&M networks. The planning team from the NPS Geologic Resources Division who proposed and designed this inventory selected the Greater Yellowstone Inventory & Monitoring Network (GRYN) as the pilot network for initiating this project (Henderson et al. 2020). Through the research undertaken to identify the geologic stratotypes within the parks of the GRYN methodologies for data mining and reporting on these resources were established. Methodologies and reporting adopted for the GRYN have been used in the development of this report for the San Francisco Bay Area Inventory & Monitoring Network (SFAN). The goal of this project is to consolidate information pertaining to geologic type sections that occur within NPS-administered areas, in order that this information is available throughout the NPS to inform park managers and to promote the preservation and protection of these important geologic landmarks and geologic heritage resources. The review of stratotype occurrences for the SFAN shows there are currently no designated stratotypes for Fort Point National Historic Site (FOPO) and Muir Woods National Monument (MUWO)...
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Multiple Engine Faults Detection Using Variational Mode Decomposition and GA-K-means. SAE International, March 2022. http://dx.doi.org/10.4271/2022-01-0616.
Повний текст джерелаАнотація:
As a critical power source, the diesel engine is widely used in various situations. Diesel engine failure may lead to serious property losses and even accidents. Fault detection can improve the safety of diesel engines and reduce economic loss. Surface vibration signal is often used in non-disassembly fault diagnosis because of its convenient measurement and stability. This paper proposed a novel method for engine fault detection based on vibration signals using variational mode decomposition (VMD), K-means, and genetic algorithm. The mode number of VMD dramatically affects the accuracy of extracting signal components. Therefore, a method based on spectral energy distribution is proposed to determine the parameter, and the quadratic penalty term is optimized according to SNR. The results show that the optimized VMD can adaptively extract the vibration signal components of the diesel engine. In the actual fault diagnosis case, it is difficult to obtain the data with labels. The clustering algorithm can complete the classification without labeled data, but it is limited by the low accuracy. In this paper, the optimized VMD is used to decompose and standardize the vibration signal. Then the correlation-based feature selection method is implemented to obtain the feature results after dimensionality reduction. Finally, the results are input into the classifier combined by K-means and genetic algorithm (GA). By introducing and optimizing the genetic algorithm, the number of classes can be selected automatically, and the accuracy is significantly improved. This method can carry out adaptive multiple fault detection of a diesel engine without labeled data. Compared with many supervised learning algorithms, the proposed method also has high accuracy.