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Letteratura scientifica selezionata sul tema "NPTES"

Autore: Grafiati

Pubblicato: 11 settembre 2023

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Articoli di riviste sul tema "NPTES"

Kumar, Anand Suresh, e Ramarathnam Krishna Kumar. "Force and Moment Characteristics of a Rhombi Tessellated Non-Pneumatic Tire". Tire Science and Technology 44, n. 2 (1 aprile 2016): 130–48. http://dx.doi.org/10.2346/tire.16.440205.

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ABSTRACT There has been a recent spate of activities in the design of non-pneumatic tires (NPTs). The validation of a NPT's design is incomplete unless its performance is compared with an equivalent pneumatic tire. Apart from its static behavior, an evaluation of the tire's performance can be done by observing its force and moment (F&M) characteristics. In the present work, an NPT has been designed with an aperiodic rhombi tessellated spoke acting as the load bearing member, where the “unit cell” design is based on the vertical, circumferential, and lateral stiffness offered by the structure. A three-dimensional finite element model has been used to capture the mechanics of load distribution in the spoke, contact patch, and variation of contact pressure distribution when the tire is subjected to different operating conditions. SIMULIA/Abaqus has been used to conduct static loading, acceleration/braking, and cornering analyses. The F&M characteristics have been extracted from these simulations and compared with those of a 165/70R14 passenger car tire. The variation in the vertical and circumferential stiffness based on the spoke geometry has also been highlighted. The use of conventional pneumatic tire's belts to alter the NPT's lateral stiffness, despite the tire behaving like a “bottom loader,” adds uniqueness to the design. The NPT's capability to match the pneumatic tire's performance and the variability observed in the tire's F&M characteristics reiterate the freedom available in NPT design, thus providing the opportunity to have similar tires with varying performance characteristics.

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Wang, Yuanyuan, Jens H. Bos, Catharina C. M. Schuiling-Veninga, H. Marike Boezen, Job F. M. van Boven, Bob Wilffert e Eelko Hak. "Neuropsychiatric safety of varenicline in the general and COPD population with and without psychiatric disorders: a retrospective cohort study in a real-world setting". BMJ Open 11, n. 5 (maggio 2021): e042417. http://dx.doi.org/10.1136/bmjopen-2020-042417.

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ObjectivesTo evaluate the real-world association between varenicline and neuropsychiatric adverse events (NPAEs) in general and chronic obstructive pulmonary disease (COPD) population with and without psychiatric disorders compared with nicotine replacement therapy (NRT) to strengthen the knowledge of varenicline safety.DesignA retrospective cohort study.SettingPrescription database IADB.nl, the Netherlands.ParticipantsNew users of varenicline or NRT among general (≥18 years) and COPD (≥40 years) population. Psychiatric subcohort was defined as people prescribed psychotropic medications (≥2) within 6 months before the index date.Outcome measuresThe incidence of NPAEs including depression, anxiety and insomnia, defined by new or naive prescriptions of related medications in IADB.nl within 24 weeks after the first treatment initiation of varenicline or NRT.ResultsFor the general population in non-psychiatric cohort, the incidence of total NPAEs in varenicline (4480) and NRT (1970) groups was 10.5% and 12.6%, respectively (adjusted OR (aOR) 0.85, 95% CI 0.72 to 1.00). For the general population in psychiatric cohort, the incidence of total NPAEs was much higher, 75.3% and 78.5% for varenicline (1427) and NRT (1200) groups, respectively (aOR 0.82, 95% CI 0.68 to 0.99). For the COPD population (1598), there were no differences in the incidence of NPAEs between comparison groups in both the psychiatric cohort (aOR 0.97, 95% CI 0.66 to 1.44) and non-psychiatric cohort (aOR 0.81, 95% CI 0.54 to 1.20). Results from subgroup or sensitivity analyses also did not reveal increased risks of NPAEs but showed decreased risk of some subgroup NPAEs associated with varenicline.ConclusionsIn contrast to the concerns of a possible increased risk of NPAEs among varenicline users, we found a relative decreased risk of total NPAEs in varenicline users of the general population in psychiatric or non-psychiatric cohorts compared with NRT and no difference for NPAEs between varenicline and NRT users in smaller population with COPD.

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Gepreel, Khaled A. "Exact Soliton Solutions for Nonlinear Perturbed Schrödinger Equations with Nonlinear Optical Media". Applied Sciences 10, n. 24 (14 dicembre 2020): 8929. http://dx.doi.org/10.3390/app10248929.

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The nonlinear perturbed Schrödinger equations (NPSEs) with nonlinear terms as Kerr law, power law, quadratic-cubic law, and dual-power law nonlinearity media play an important role in optical fibers. In this article we implement the rational solitary wave method to study the NPSEs when nonlinear terms take some different forms. Additionally, we use the q-deformed hyperbolic function and q-deformed trigonometric function methods to study the exact solutions to NPSEs. Different kind of soliton solutions are obtained such as bright, dark, and singular periodic solutions to the NPSEs.

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Lamothe, Karl A., Haibin Dong, Oscar E. Senar, Sonja Teichert, Irena F. Creed, David P. Kreutzweiser, Fiona K. A. Schmiegelow e Lisa Venier. "Demand for nonprovisioning ecosystem services as a driver of change in the Canadian boreal zone1". Environmental Reviews 27, n. 1 (marzo 2019): 106–23. http://dx.doi.org/10.1139/er-2018-0065.

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The Canadian boreal zone provides ecosystem services from local to global scales. Either directly or indirectly, demands for these services have and will continue to serve as drivers of change in the region. Here we present evidence for past, present, and potential future demand for maintaining nonprovisioning ecosystem services (NPrES), defined as indirect and nonmarketable services obtained from ecosystems as a driver of change in the boreal zone. Our evidence of demand stems from federal and provincial policies, actions by Indigenous peoples, and nongovernmental initiatives that aim to maintain the sustainability of natural resource extraction and ecosystem condition of the boreal. Presently, the demand for NPrES influences decisions related to natural resource development (e.g., forestry) that in turn impacts the condition of the boreal zone. Informed by the present conditions and past trends, three future scenarios to the year 2050 are presented that contrast in their trajectory—status quo, increased demand for NPrES, and decreased demand for NPrES. We also summarize the interactions among other drivers of change in the boreal and the synergies and trade-offs among the different types of demand for NPrES. Ultimately, sustainability of the boreal zone and the ecosystem services it provides will result from a complex suite of interacting drivers of change, where the balance of demands for provisioning and NPrES will continue to influence regional conditions.

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Riddle, Daniel L., Ralph R. Utzman, Dianne V. Jewell, Stephanie Pearson e Xiangrong Kong. "Academic Difficulty and Program-Level Variables Predict Performance on the National Physical Therapy Examination for Licensure: A Population-Based Cohort Study". Physical Therapy 89, n. 11 (1 novembre 2009): 1182–91. http://dx.doi.org/10.2522/ptj.20080400.

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Background Several factors have been shown to influence first-time pass rates on the National Physical Therapy Examination (NPTE). It is unclear to what extent academic difficulty experienced by students in a physical therapist education program may affect NPTE pass rates. The effects of institutional status (public or private) and Carnegie Classification on NPTE pass rates also are unknown. Objective The aim of this study was to quantify the odds of failure on the NPTE for students experiencing academic difficulty and for institutional status and Carnegie Classification. Design This investigation was a retrospective population-based cohort study. Methods Quota sampling was used to recruit a random sample of 20 professional physical therapist education programs across the United States. Individual student demographic, preadmission, and academic performance data were collected, as were data on program-level variables and data indicating pass/fail performance on the NPTE. A generalized linear mixed-effects logistic regression model was used to adjust for confounding factors and to describe relationships among the key predictor variables—academic difficulty, institutional status, and Carnegie Classification—and the dependent variable, NPTE performance. Results Academic difficulty during a student's professional training was an independent predictor for NPTE failure. The odds of students who had academic difficulty (relative to students who did not experience academic difficulty) failing the NPTE were 5.89 (95% confidence interval=4.06–8.93). The odds of NPTE failure also varied depending on institutional status and Carnegie Classification. Limitations The findings related to Carnegie Classification and institutional status should be considered preliminary. Conclusions Student performance on the NPTE was influenced by multiple factors, but the most important, potentially modifiable risk factor for poor NPTE performance likely is academic difficulty during professional training.

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Pal, Dipan K., e Marios Savvides. "Non-Parametric Transformation Networks for Learning General Invariances from Data". Proceedings of the AAAI Conference on Artificial Intelligence 33 (17 luglio 2019): 4667–74. http://dx.doi.org/10.1609/aaai.v33i01.33014667.

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ConvNets, through their architecture, only enforce invariance to translation. In this paper, we introduce a new class of deep convolutional architectures called Non-Parametric Transformation Networks (NPTNs) which can learn general invariances and symmetries directly from data. NPTNs are a natural generalization of ConvNets and can be optimized directly using gradient descent. Unlike almost all previous works in deep architectures, they make no assumption regarding the structure of the invariances present in the data and in that aspect are flexible and powerful. We also model ConvNets and NPTNs under a unified framework called Transformation Networks (TN), which yields a better understanding of the connection between the two. We demonstrate the efficacy of NPTNs on data such as MNIST with extreme transformations and CIFAR10 where they outperform baselines, and further outperform several recent algorithms on ETH-80. They do so while having the same number of parameters. We also show that they are more effective than ConvNets in modelling symmetries and invariances from data, without the explicit knowledge of the added arbitrary nuisance transformations. Finally, we replace ConvNets with NPTNs within Capsule Networks and show that this enables Capsule Nets to perform even better.

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Crandall, Ian, Jeffrey Charuk e Kevin C. Kain. "Nonylphenolethoxylates as Malarial Chloroquine Resistance Reversal Agents". Antimicrobial Agents and Chemotherapy 44, n. 9 (1 settembre 2000): 2431–34. http://dx.doi.org/10.1128/aac.44.9.2431-2434.2000.

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ABSTRACT Malaria-associated morbidity and mortality are increasing because of widespread resistance to one of the safest and least expensive antimalarials, chloroquine. The availability of an inexpensive agent that is capable of reversing chloroquine resistance would have a major impact on malaria treatment worldwide. The interaction of nonylphenolethoxylates (NPEs, commercially available synthetic surfactants) with drug-resistant Plasmodium falciparum was examined to determine if NPEs inhibited the growth of the parasites and if NPEs could sensitize resistant parasites to chloroquine. NPEs inhibited the development of the parasite when present in the low- to mid-micromolar range (5 to 90 μM), indicating that they possess antimalarial activity. Further, the presence of <10 μM concentrations of NPEs caused the 50% inhibitory concentrations for chloroquine-resistant lines to drop to levels (≤12 nM) observed for sensitive lines and generally considered to be achievable with treatment courses of chloroquine. Long-chain (>30 ethoxylate units) NPEs were found to be most active in P. falciparum, which contrasts with previously observed maximal activity of short-chain (∼9 ethoxylate units) NPEs in multidrug-resistant mammalian cell lines. NPEs may be attractive chloroquine resistance reversal agents since they are inexpensive and may be selectively directed againstP. falciparum without inhibiting mammalian tissue P glycoproteins. Antimalarial preparations that include these agents may prolong the effective life span of chloroquine and other antimalarials.

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Filippov, Alexander Gennadievich, Valery Vasil’evich Alexandrin, Alexander Vladimirovich Ivanov, Alexander Alexandrovich Paltsyn, Nadezhda Borisovna Sviridkina, Edward Danielevich Virus, Polina Olegovna Bulgakova, Joanna Petrovna Burmiy e Aslan Amirkhanovich Kubatiev. "Neuroprotective Effect of Platinum Nanoparticles Is Not Associated with Their Accumulation in the Brain of Rats". Journal of Functional Biomaterials 14, n. 7 (29 giugno 2023): 348. http://dx.doi.org/10.3390/jfb14070348.

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Platinum nanoparticles (nPts) have neuroprotective/antioxidant properties, but the mechanisms of their action in cerebrovascular disease remain unclear. We investigated the brain bioavailability of nPts and their effects on brain damage, cerebral blood flow (CBF), and development of brain and systemic oxidative stress (OS) in a model of cerebral ischemia (hemorrhage + temporary bilateral common carotid artery occlusion, tBCAO) in rats. The nPts (0.04 g/L, 3 ± 1 nm diameter) were administered to rats (N = 19) intraperitoneally at the start of blood reperfusion. Measurement of CBF via laser Doppler flowmetry revealed that the nPts caused a rapid attenuation of postischemic hypoperfusion. The nPts attenuated the apoptosis of hippocampal neurons, the decrease in reduced aminothiols level in plasma, and the glutathione redox status in the brain, which were induced by tBCAO. The content of Pt in the brain was extremely low (≤1 ng/g). Thus, nPts, despite the extremely low brain bioavailability, can attenuate the development of brain OS, CBF dysregulation, and neuronal apoptosis. This may indicate that the neuroprotective effects of nPts are due to indirect mechanisms rather than direct activity in the brain tissue. Research on such mechanisms may offer a promising trend in the treatment of acute disorders of CBF.

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Guo, Gaohuizi, Cuiyou Yao e Mehrdad Shoeibi. "Emergency Project Management Decision Support Algorithm for Network Public Opinion Emergencies Based on Time Series". Complexity 2022 (28 settembre 2022): 1–9. http://dx.doi.org/10.1155/2022/4732999.

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The present study aims at proposing a time series-based network public opinion emergency (NPOE) management decision support algorithm for the problems of low decision accuracy and long decision time in traditional similar algorithms. In this proposed algorithm, after the time series data are preprocessed, the association rules of the original indicator data of network public opinion emergencies (NPOEs) are mined, the original indicator data matrix of NPOEs will be constructed, and the improved local linear embedding approach will be employed to obtain the original indicator data of NPOEs. After carrying out the preprocessing according to the preprocessing results, the objective weight of the emergency decision index is calculated through the interval value fuzzy information entropy measurement of the emergency decision index, the emergency management decision support model is constructed, and the emergency management decision support of the NPOE is realized. The simulation experiment results show that the proposed algorithm has a better effect on the decision-making effect of the management of NPOEs, and a higher decision-making efficiency is achieved.

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Bock, Clive H., Bruce W. Wood e Tim R. Gottwald. "Pecan Scab Severity—Effects of Assessment Methods". Plant Disease 97, n. 5 (maggio 2013): 675–84. http://dx.doi.org/10.1094/pdis-07-12-0642-re.

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Pecan scab is caused by the fungus Fusicladium effusum, and is the most destructive disease of pecan in the United States. Accurate and reliable disease assessments are needed to ensure that data provide a measure of actual disease intensity. The Horsfall-Barratt (H-B) category scale and its derivatives are commonly used to assess disease. Estimates using the H-B scale were compared with nearest percent estimate (NPEs) for rating disease severity of pecan scab on valves of fruit. Both inexperienced and experienced raters were included in the experiment. Lin's concordance correlation showed that agreement using NPEs was variable (ρc = 0.57 to 0.96), whereas estimates of disease severity using the H-B scale had similar agreement among most raters (ρc = 0.59 to 0.98). Converted values of NPEs to the H-B midpoints (NPEH-B) also provided a similar range (ρc = 0.61 to 0.96). Neither experienced nor inexperienced raters were consistently better using any of the three methods. Bootstrap analysis indicated that, among experienced raters, precision (r) and agreement (ρc) were often reduced when using the H-B scale compared with NPEs. There was no consistent effect of converting NPEs to NPEH-B midpoint values compared with actual H-B values. Inter-rater reliability using the H-B scale was never better than NPEs. Bootstrap analysis indicated no difference in the length of time needed to assess disease but regression analysis suggested that raters who were inherently fast in assessing disease with NPEs were often slower when using the H-B scale; conversely, raters who were slow assessing with NPEs were often faster when using the H-B scale. Thus, there appears to be no advantage in accuracy or reliability or reduction in time when inexperienced or experienced raters used a category rating scale to assess pecan scab.

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Tesi sul tema "NPTES"

Wilson, Robert. "The NPDES Storm Water Rules - A Municipal Impact". Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296448.

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From the Proceedings of the 1991 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 20, 1991, Northern Arizona University, Flagstaff, Arizona

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Brendliner, Robert Lee. "Toxicity analysis of coal mining industry NPDES discharges in Southwest Virginia /". This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-01122010-020036/.

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Aguilar, Marcus F. "Leveraging Technology to Add Value to a Phase II NPDES Permit". Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/50930.

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In 1999, Phase II of the National Pollutant Discharge Elimination System engaged operators of small Municipal Separate Storm Sewer Systems (MS4) in the control of runoff from urban areas. The complex task of urban runoff mitigation has been investigated for several decades, resulting in a large variety of available computing and measurement tools for urban stormwater management. Unfortunately, these tools may not be available to the MS4 operator in a format that is both concise, and directly applicable. To address this need, this thesis recommends stormwater model creation and refinement strategies for Phase II MS4s using GIS and Python scripting. Further recommendations on using a popular discharge measurement technique for model calibration are provided. This workflow is then demonstrated in a watershed in Blacksburg, Virginia, where a unique MS4 permitting partnership allowed the development of these tools. Finally, further improvements to the workflow are suggested along with ideas for additional research for stormwater management in Phase II MS4s.
Master of Science

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Brendlinger, Robert Lee. "Toxicity analysis of coal mining industry NPDES discharges in Southwest Virginia". Master's thesis, Virginia Tech, 1991. http://hdl.handle.net/10919/40599.

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Industrial toxicity has become a major environmental subject over the past decade. Although much research and data have been collected and published for the manufacturing type industries, minimal data is currently available concerning the possible toxics that may be associated with coal mining industry NPDES discharges. Thus, in this report, an environmental toxicity assessment with respective data shall be presented on the three major constituent sectors of the coal mining industry in Southwest Virginia of which includes mines, preparation plants and refuse facilities. The mines category shall include both surface and underground facilities. The preparation plants sector will cover the traditional railroad siding loadout type facilities, along with the modern clean coal processing preparation plants. Valley and side fill configuration, coarse and combined refuse fills and coal refuse impoundments shall be presented in the refuse facility categorization. Reference source data and specific information from a Virginia Coal Association Taxies Monitoring Program study are presented to show that the effects of toxicity in the coal mining associated NPDES effluents are minimal and not a serious problem. The conclusions of this report shall show that through enforcement of better management practices within the coal industry in Southwest Virginia that toxicity can be virtually eliminated in NPDES outfalls.
Master of Science

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Park, Jae-il. "Non-practising entities (NPEs) and patent remedies for future infringement". Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13146/.

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This research establishes a new patent remedy (injunction) system against future infringements in such a way as to discourage trolling behaviours of non-practising entities (NPEs) without chilling inventors’ incentives to innovate. For this research target, this thesis reviewed the general characteristics of NPEs in the current and past patent system, the current patent remedy laws in different countries (the US, UK and Germany), the patent holdups caused by NPEs’ patent enforcement against manufacturers, and various solutions which have been proposed so far. In doing so, it addresses important findings that the major cause of NPE problems stems from the inherent uncertainty nature of patent, that the courts’ discretion of whether to grant or deny an injunction needs to be clearly defined, and that the new injunction system should skilfully balance the short-term as well as the long-term transaction costs which are caused by NPEs’ patent enforcements. Considering these findings, this thesis proposes a new injunction model, alias a ‘three-tiered remedy system.’ Unlike the present two-tiered system, it divides the remedies into three different types: (1) granting an unqualified injunction against wilful infringers; (2) granting a suspended injunction against innocent infringers; and (3) denying injunctions in exceptional circumstances. The most differentiated feature of this model is to award a suspended injunction as a default remedy in order to mitigate the patent holdup arising from the uncertainty problem of patent. Since the suspension period is determined in proportion to the required time for designing around the infringed patent, this new model can provide a very useful solution to mitigate the harmful effect of NPEs’ patent enforcement without jeopardizing the integrity of exclusive right of patent at the same time.

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Fulkerson, Anthony L. "The Differences Between Industrial and Municipal Executives' Practices and Perceptions of an NPDES Water Pollution Control System in Tennessee". Digital Commons @ East Tennessee State University, 1990. https://dc.etsu.edu/etd/2680.

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The purpose of this study was to determine the differences between industrial and municipal executives' practices and perceptions toward the administrative requirements of a water pollution control system as set forth in a National Pollutant Discharge Elimination System permit. This was a descriptive study that utilized a two-part attitudinal survey designed to obtain the perceptions of the executives (N = 171) of all major industries and all major municipalities in the State of Tennessee who had direct responsibility for the administrative requirements of an NPDES permitted water pollution control system. Descriptive statistics were used for the analysis of data with the chi-square formula used for the analysis of the study's three hypotheses. The descriptive analysis of the three hypotheses resulted in the following findings and conclusions: (1) There was no significant difference in what principal executives perceived was the most important administrative requirement of the NPDES permitted water pollution control system ($\chi\sp2$ = 1.44, df = 2). Both categories defined operational problems as the most important administrative requirement. (2) There was a significant difference in what principal executives perceived were the important water quality designated uses achieved by the facility water pollution control system ($\chi\sp2$ = 12.80, df = 6). Industrial respondents perceived "protection of fish and aquatic life" as most important, while municipal executives perceived "domestic and industrial water supply" as most important. (3) There was no significant difference in what principal executives perceived was the direct motivation for the water pollution control system installation, operation, and maintenance ($\chi\sp2$ = 1.65, df = 2). Both categories perceived environmental motivation as the most important reason for the NPDES permit administrative requirements. These findings supported the Clean Water Act regulatory program national objective to "restore and maintain the chemical, physical, and biological integrity of the nation's waters" (Arbuckle, Frick, Hall, Miller, Sullivan, & Vanderver, 1983, p. 83). The major municipal and industrial facility executives in Tennessee were in agreement that their systems were effective in achieving compliance with the administrative requirements of the permit. The researcher recommended future research to identify specific problems resulting from the administrative requirements of the NPDES permit and replications of the study nationally.

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Fahimi-Steingaeber, Ghesal. "The impact of non-practicing-entities (NPEs) on innovation an empirical analysis based on European sourced patients". Thesis, University of the West of Scotland, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730016.

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Chakraborti, Lopamudra. "Assessing the efficacy of NPDES regulation [electronic resource] : permit writers' decisions, plants' responses, and impact of pollutants on water quality /". College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8820.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Dept. of Agricultural and Resource Economics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Guckian, Jacqueline. "Ohio Environmental Protection Agency: An Internship Report". Miami University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=miami1196169547.

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Kitheka, Bernard M. Mr. "INVENTORY OF STORMWATER MANAGEMENT PRACTICES IN THE CITY OF OXFORD, OHIO". Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1274732505.

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Più fonti

Libri sul tema "NPTES"

S, Taylor Robert, Gallagher Lynn M e Government Institutes, a cura di. NPDES permit handbook. Rockville, MD, U.S.A: Government Institutes, 1989.

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Permits, United States Environmental Protection Agency Office of Water Enforcement and. NPDES compliance inspection manual. Washington, DC: U.S. Environmental Protection Agency, Office of Water, Office of Water Enforcement and Permits, 1988.

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United States. Environmental Protection Agency. Office of Wastewater Management e United States. Environmental Protection Agency. Office of Water, a cura di. NPDES permit writers' manual. Washington, DC: U.S. Environmental Protection Agency, Office of Water, 1996.

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United States. Environmental Protection Agency. Office of Water Enforcement and Permits. NPDES compliance inspection manual. Washington, DC: U.S. Environmental Protection Agency, Office of Water, Office of Water Enforcement and Permits, 1988.

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United States. Environmental Protection Agency. Enforcement and Compliance Assurance. NPDES compliance inspection manual. Washington, DC (401 M St. SW Washington 20460): U.S. Environmental Protection Agency, Office of Enforcement and Compliance Assurance, 1994.

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NPDES compliance inspection manual. Washington, D.C.]: United States Environmental Protection Agency, Office of Compliance, 2004.

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Hu, Patricia S. 1990 NPTS databook. [Washington, D.C.]: U.S. Dept. of Transportation, Federal Highway Administration, 1993.

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Più fonti

Capitoli di libri sul tema "NPTES"

Troć, R. "NpTe: Reflectivity". In Actinide Monochalcogenides, 1062. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_236.

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Pilat, Joseph F. "The NPT’s Prospects". In 1995: A New Beginning for the NPT?, 47–61. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1947-8_5.

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Troć, R. "NpTe: Lattice Properties". In Actinide Monochalcogenides, 1053–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_231.

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Troć, R. "NpTe: Phonon Dispersion". In Actinide Monochalcogenides, 1057. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_232.

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Troć, R. "NpTe: Electrical Resistivity". In Actinide Monochalcogenides, 1060. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_234.

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Troć, R. "NpTe: Heat Capacity". In Actinide Monochalcogenides, 1061. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_235.

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Troć, R. "NpTe: Polarized Neutron Scattering". In Actinide Monochalcogenides, 1058–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_233.

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Cho, Yoonkyo. "Patent Litigation Between NPEs and Non-NPEs: Being Trapped or Moving Forward?" In Lecture Notes in Electrical Engineering, 130–32. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4132-0_13.

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Kaur, Manpreet, e Harish Kumar. "Keyword-Based Search and Ranking in NPTEL Lecture Videos". In Proceedings of the International Conference on Transformations in Engineering Education, 79–88. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1931-6_12.

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Troć, R. "NpTe: Electronic Band Structure and Density of States (DOS)". In Actinide Monochalcogenides, 1050–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-47043-4_230.

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Atti di convegni sul tema "NPTES"

Heo, Hyeonu, Jaehyung Ju, Doo-Man Kim e Sangwa Rhie. "A Study on the Aerodynamic Drag of a Non-Pneumatic Tire". In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70718.

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Abstract (sommario):

An understanding of the flow around a tire in contact with the ground is important for when designing a fuel efficient tire as aerodynamic drag accounts for about one third of an entire vehicle’s rolling loss [1]. Recently, non-pneumatic tires (NPTs) have drawn attention mainly due to their low rolling resistance associated with the use of low viscoelastic materials in their construction. However, an NPT’s fuel efficiency should be re-evaluated in terms of aerodynamic drag: discrete flexible spokes in an NPT may cause more aerodynamic drag, resulting in greater rolling resistance. In this study, the aerodynamic flow around an NPT in contact with the ground is investigated for i) stationary and ii) rotating cases using the Reynolds-Averaged Navier-Stokes (RANS) method. The NPT has a more complex flow and a higher drag force than does the pneumatic counterpart.

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Ravi, Jayanti, e Haresh Jayantilal Jani. "A Critical Study of NPTEL". In 2011 Third International Conference on Technology for Education (T4E). IEEE, 2011. http://dx.doi.org/10.1109/t4e.2011.14.

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Bhattacharjee, Kalyan Kumar. "SWOT analysis of NPTEL knowledge portal". In 2014 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2014. http://dx.doi.org/10.1109/ieem.2014.7058791.

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Ravi, Jayanti S., Haresh Jani, Tushar Patel e Adit Ravi. "Perception of NPTEL among Its Stakeholders". In 2014 IEEE Sixth International Conference on Technology for Education (T4E). IEEE, 2014. http://dx.doi.org/10.1109/t4e.2014.53.

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Meng, Fanhao, Dengfeng Lu e Jingjun Yu. "Flexible Cellular Structures of a Non-Pneumatic Tire". In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59124.

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Taking the tire of the lunar rover as the research background, this paper provides two design concepts of non-pneumatic tires (NPTs) with a compliant cellular solid spoke component. In this study, a series of degrees of freedom (DOFs) and stiffness analysis of NPTs with cellular structures are investigated with the same vertical loading conditions using a commercial finite element analysis tool, ANSYS. The research found that the tread relative to the hub only has in-plane translational degree of freedom in the radial direction, without other DOFs. According to this finding, using the improved design method based on the existing cellular structures and the synthetic design method based on the principle of compliant mechanism, two cases of cellular structures are designed: (i) cross arcs cell and (ii) rectangular cell. Analysis of the influence of geometric parameters of the cell on the performance of NPTs is critical to further improve the performance of the NPTs. Finally, by optimizing the geometrical parameters of the cellular structure, the performance of the NPTs with the cross arcs cell and rectangular cell can be enhanced.

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Lee, Chihun, Jaehyung Ju e Doo-Man Kim. "Vibration Analysis of Non-Pneumatic Tires With Hexagonal Lattice Spokes". In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70538.

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With an increased interest in a non-pneumatic tire (NPT) and its possible performance on safety in driving and low rolling resistance, extensive research on mechanical properties including dynamic characteristics are required to explore for the commercialization of NPTs. In this study, we explore the dynamic characteristics of NPTs with flexible hexagonal lattice spokes. A steady state vibration characteristic of NPTs is investigated with a series of load carrying capability and rolling speed for two hexagonal spokes using a commercial finite element code, ABAQUS. The obtained vibration characteristics are compared with those of conventional pneumatic tires, which are available in the literature.

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Er, Zuhal. "Utilization of NPDES-VGP for cooperate environmental awareness". In 2010 2nd International Conference on Chemical, Biological and Environmental Engineering (ICBEE). IEEE, 2010. http://dx.doi.org/10.1109/icbee.2010.5651512.

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Sharon T. Arteaga. "National Pollutant Discharge Elimination System (NPDES) Compliance Challenges". In 2001 Sacramento, CA July 29-August 1,2001. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2001. http://dx.doi.org/10.13031/2013.3508.

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McCorquodale, J. Alex, Douglas Moulton, Donald Barbe, Youchao Wang, Katy Haralampides e Susanne Carnelos. "Reliability of NPDES Derived Loads in Urban Runoff". In Specialty Symposium on Urban Drainage Modeling at the World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40583(275)29.

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Finley, Patrick J. "A Review of National Pollutant Discharge Elimination System Discharge-Permit Requirements for EPA Region 6". In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/ee-29167.

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During oil and gas extraction in the Gulf of Mexico (GOM), water and pollutants are produced from wells. The Environmental Protection Agency (EPA) has mandated a permit system to help control the discharge of these waters into the GOM. The National Pollutant Discharge Elimination System (NPDES) contains both requirements and standards for discharge in offshore Texas and Louisiana federal waters. This review summarizes permit (GMG290000) requirements, effluent limitations, standard conditions, and monitoring requirements for NPDES general permits in EPA Region 6.

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Rapporti di organizzazioni sul tema "NPTES"

Hu, PS. 1995 NPTS Databook. Office of Scientific and Technical Information (OSTI), dicembre 2001. http://dx.doi.org/10.2172/814083.

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Lemke, Terrill W. NPDES Storm Water & Pesticide General Permits Overview. Office of Scientific and Technical Information (OSTI), settembre 2018. http://dx.doi.org/10.2172/1473769.

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Loll, C. M. 300 Area TEDF NPDES Permit Compliance Monitoring Plan. Office of Scientific and Technical Information (OSTI), ottobre 1994. http://dx.doi.org/10.2172/10191646.

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Loll, C. M. 300 area TEDF NPDES Permit Compliance Monitoring Plan. Office of Scientific and Technical Information (OSTI), settembre 1995. http://dx.doi.org/10.2172/263924.

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Payne, W. L. Meeting NPDES permit limits for an effluent-dependent stream. Office of Scientific and Technical Information (OSTI), settembre 1998. http://dx.doi.org/10.2172/296842.

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Wolfel, Steven E., e Patricia A. Vardaro-Charles. NPDES Permit No. NM0028355, Final Report for DQA Study 38. Office of Scientific and Technical Information (OSTI), agosto 2018. http://dx.doi.org/10.2172/1468546.

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Foxx, T., e B. Blea-Edeskuty. Wildlife use of NPDES outfalls at Los Alamos National Laboratory. Office of Scientific and Technical Information (OSTI), settembre 1995. http://dx.doi.org/10.2172/118380.

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Halverson, N., R. Ralph Nichols e T. Topher Berry. PILOT PEAT-BED TREATMENT SYSTEM FOR NPDES OUTFALL H-12. Office of Scientific and Technical Information (OSTI), ottobre 2007. http://dx.doi.org/10.2172/919045.

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Shedrow, C. ENVIRONMENTAL ASSESSMENT FOR THE NPDES STORM WATER COMPLIANCE ALTERNATIVES AT THE SRS. US: SRS, novembre 2006. http://dx.doi.org/10.2172/895492.

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Lanning, J. M. Aqueous mercury treatment technology review for NPDES Outfall 49 Y-12 Plant. Office of Scientific and Technical Information (OSTI), aprile 1993. http://dx.doi.org/10.2172/10106377.

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