Bibliografie tematiche / Properties loss

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Letteratura scientifica selezionata sul tema "Properties loss"

Autore: Grafiati
Pubblicato: 22 febbraio 2025

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Articoli di riviste sul tema "Properties loss"

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Okamoto, H., H. Hayashi, A. Tomioka, M. Konno, M. Owa, A. Kawagoe, F. Sumiyoshi et al. "AC loss properties in YBCO model coils for loss reduction". Physica C: Superconductivity 468, n. 15-20 (settembre 2008): 1731–33. http://dx.doi.org/10.1016/j.physc.2008.05.185.

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Tanaka, Kazuhide, Kazuo Funaki, Takahiro Sueyoshi, Yushi Sasashige, Kazuhiro Kajikawa, Masataka Iwakuma, Michiya Okada, Hiroaki Kumakura e Hidemi Hayashi. "AC loss properties of MgB2multifilament wires". Superconductor Science and Technology 21, n. 9 (4 luglio 2008): 095007. http://dx.doi.org/10.1088/0953-2048/21/9/095007.

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Wang, Chia-Li, e Ronald W. Wolff. "Loss probability properties in retrial queues". Operations Research Letters 37, n. 1 (gennaio 2009): 47–50. http://dx.doi.org/10.1016/j.orl.2008.09.003.

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4

Xu, Huan, Wen Sun, Yonghao Gui, Lixi Wang, Mingxun Yu e Qitu Zhang. "Electromagnetic loss properties of ZnO nanofibers". Journal of Materials Science: Materials in Electronics 27, n. 12 (27 luglio 2016): 12846–51. http://dx.doi.org/10.1007/s10854-016-5419-z.

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Spišák, Emil, e Janka Majerníková. "The Loss of Plasticity Stability". Applied Mechanics and Materials 693 (dicembre 2014): 346–51. http://dx.doi.org/10.4028/www.scientific.net/amm.693.346.

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The real values of plastic properties of steel sheets are basic input parameters for objectification of deep drawing technological processes. The loss of stability of plastic properties is the criterion of evaluation of plastic properties of steel sheets in most cases. The loss of stability of plastic properties depends on stress-strain scheme in real conditions of deep drawing of sheets. In the contribution will be evaluated the loss of plastic properties stability of thin double reduced packaging sheets made from low carbon steels. For evaluation of strength and plastic properties of thin packaging sheets is the tensile test most used at present. The material is stressed by uniaxial tension during this test. In the conditions of technological processes of drawing, which thin packaging sheets are mostly treating, is this way of stress not very objective. In most cases it deals about multiaxial stress of sheet by deformation of sheet to require draw cup. At the present, the biggest problem of thin steel sheets by uniaxial tension test evaluation is the loss of plastic deformation stability (localization of plastic deformation). Therefore, obtained results of plastic deformation during this test do not correspond with real plastic properties of thin steel sheets. In the contribution, will be compared the evaluation of plastic properties of these sheets by uniaxial and biaxial load. Biaxial load is unfavourable from stress point, but less sensitive on loss stability of plastic deformation from conditions test influence point.
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Gomes, Lais, Bruna Alves, Rita de Cassia Nunes, Ricardo Michel, Ygor Ribeiro, Flavia da Silva e Luciana Spinelli. "APHRONS OBTAINED FROM DIFFERENT NONIONIC SURFACTANTS: PROPERTIES AND FILTRATION LOSS EVALUATION". Chemistry & Chemical Technology 11, n. 3 (28 agosto 2017): 349–57. http://dx.doi.org/10.23939/chcht11.03.349.

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Peng, Qian, Yadong Qiao e Yang Liu. "Temperature-dependent optical properties of low-loss plasmonic SrMoO3 thin films". Chinese Optics Letters 21, n. 5 (2023): 053601. http://dx.doi.org/10.3788/col202321.053601.

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Harel, Arie. "Convexity Properties of the Erlang Loss Formula". Operations Research 38, n. 3 (giugno 1990): 499–505. http://dx.doi.org/10.1287/opre.38.3.499.

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Kumaran, Krishnan, Michel Mandjes e Alexander Stolyar. "Convexity properties of loss and overflow functions". Operations Research Letters 31, n. 2 (marzo 2003): 95–100. http://dx.doi.org/10.1016/s0167-6377(02)00191-8.

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Saotome, Hideo, Keisuke Azuma, Hiroki Kizuka e Takuma Tanaka. "Properties of dynamic magnetic loss of ferrite". AIP Advances 8, n. 5 (maggio 2018): 056103. http://dx.doi.org/10.1063/1.5003858.

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Tesi sul tema "Properties loss"

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Munro, Roger Cameron. "Anti - haemostatic properties of the Hirudinea". Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317381.

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Bestenlehner, Joachim Michael. "Mass-loss properties of the most massive stars in 30 Doradus". Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602438.

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Abstract (sommario):
Our understanding of high-mass star evolution is tightly connected to our understanding of their mass-loss properties. The initial and final mass are significantly different as a result of mass loss. Massive stars have strong stellar winds and high ionising fluxes and are the main sources for mechanical and radiative feedback in giant H II regions. However, the wind and mass-loss properties and how they change during their evolution are not understood. To provide new observational evidences and to test current theoretical predictions, this thesis explores the mass-loss rate range from optically thin O-star winds to optically WR-star winds. In the context of the VLT-Flames Tarantula Survey we study the transition region from O-stars to very massive WNh-stars. For this study, we selected 62 0, Of, Of/WN, and WNh-stars in the Tarantula Nebula. For the analysis, we used the non-LTE radiative transfer code CMFGEN to obtain accurate stellar parameters, and to investigate the mass-loss propelties and evolution of these massive stars. We show that Of/WN-stars are transition objects from optically thin O-star winds to optically thick WR-star winds. Our sample covers an age range from 1 to 3 Myr. Of/WN and WNh-stars show hydrogen depletion at the surface on much shorter timescales (< 1 Myr) than the less luminous 0- stars. The predictions of the wind momenta for the' most luminous O-stars are overestimated and for the WNh-stars are underestimated. This is an indication that new theoretical mass-loss predictions are required for the most luminous stars. In our analysis yve could confirm the theoretical predictions which suggest a notable change of the mass-loss behaviour at a certain Eddington factor. The Eddington factor is well defined in evolutionary models. Using this mass loss-Eddington factor relation it is possible to provide more accurate mass-loss rates for new evolutionary models.
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Ahmed, El-Mahadi. "Rheological properties, loss of workability and strength development of high-strength concrete". Thesis, University College London (University of London), 2002. http://discovery.ucl.ac.uk/1317867/.

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The successful production of high-strength concrete which meets the desired strength and durability is dependent on optimising its rheological (or flow) properties and reducing its loss of workability during the transportation, placing and compaction stages. The research presented in this thesis aimed to: 1. Determine whether mix stability and compactability can be adequately described by the two Bingham parameters of yield value and plastic viscosity. 2. Reduce the uncertainties in material selection with regards to the performance of superplasticizers and cement replacement materials. 3. Examine how the two Bingham parameters vary at different degrees of compaction by vibration. 4. Determine how these influence the strength development characteristics in the hardened state. 5. An additional aim was to carry out any modifications to the test apparatus and methods which experience makes necessary. Measurements with Tattersall's MH two-point workability test apparatus indicated that mix stability correlates more closely with the yield value than with plastic viscosity, whilst the opposite is true with respect to compactability under self-weight. The performance of conventional and new-generation superplasticizers (based on SMF, SNF, MLS, Vinyl and Acrylate polymers) was evaluated with different dosages, mixing procedures and cements. The SNF superplasticizer produced slightly lower initial workabilities than the Acrylate superplasticizer, but the longest workability retentions of the superplasticizers tested. Partial cement replacements by CSF in binary blends produced lower superplasticizer dosage demands, higher initial workabilities and longer workability retentions than those due to PFA and GGBS. When used in ternary blended cements, CSF enhanced the performance of mixes containing PFA or GGBS at w/b ratios of 0.30-0.22. A novel method developed to assess the vibration response of fresh concretes has, for the first time, demonstrated that both the yield value and plastic viscosity decrease during compaction. The method has also demonstrated that the maximum compressive strengths and densities of concretes compacted for different vibration durations/amplitudes coincide with the attainment of zero yield value. Continuous reductions in plastic viscosity during vibration mainly reduced the homogeneity of concrete compacted in short columns.
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Ergen, Cemil Emre. "Flood Mitigation Decision Tool for Target Repetitive Loss Properties in Jefferson Parish". ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/405.

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For decades Louisiana, especially Jefferson and Orleans parishes, has been affected severely by floods. These two parishes have experienced fifteen significant flood events in twenty six years from 1978 to 2004, either due to tropical weather or strong rainfall events. Those floods have resulted in billions of dollars in damages. In 1996 the Congress authorized a large flood control project called Southeast Louisiana Urban Flood Control Project (SELA). SELA is a large scale project that once complete, will improve the channels and the pumping stations in Orleans, Jefferson, and St. Tammany parishes. FEMA has limited sources for non-structural mitigation projects. Hence it is crucial to select the right properties for mitigation. This study focuses on identifying and creating a priority list of the properties in Jefferson Parish which will not have 100-year flood protection after all SELA projects are in place. These properties will require alternative non-structural mitigation measures.
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Olsson, Martin. "Thermal Shape Factor : The impact of the building shape and thermal properties on the heating energy demand in Swedish climates". Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-125076.

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In the year 2006, the energy performance directive 2002/91/EG was passed by the European Union, according to this directive the Swedish building code was supplemented by a key measure of energy use intensity (EUI). The implemented EUI equals some energy use within a building divided by its floor area and must be calculated in new housing estate and shown when renting or selling housing property. In order to improve the EUI, energy efficiency refurbishments could be implemented. Building energy simulation tools enables a virtual view a building model and can estimate the energy use before implementing any refurbishments. They are a powerful resource when determine the impact of the refurbishment measure. In order to obtain a correct model which corresponds to the actual energy use, some adjustments of the model are often needed. This process refers to as calibration. The used EUI has been criticized and thus, the first objective in this work was to suggest an alternative key measure of a buildings performance. The results showed that the currently used EUI is disfavoring some districts in Sweden. New housing estate in the far north must take more refined actions in order to fulfill the regulation demand, given that the users are behaving identical regardless where the house is located. Further, the suggested measure is less sensitive to the users’ behavior than the presently used EUI. It also has a significance meaning in building design as it relating the building shape and thermal properties and stating that extreme building shapes must undergo a stricter thermal construction rather than buildings that are more compact. Thus, the suggested key measure also creates a communication link between architects and the consultant constructors. The second objective of this thesis has been to investigate a concept of calibration using the data normally provided by energy bills, i.e. some monthly aggregated data. A case study serves to answer this objective, by using the building energy simulation tool IDA ICE 4.7 and a building located in Umeå, Sweden. The findings showed that the used calibration approach yielded a model considered as calibrated in eleven of twelve months. Furthermore, the method gives a closer agreement to the actual heat demand rather than using templates and standardized values. The major explanation of the deviation was influence of the users, but also that the case study building burden with large heat losses by domestic hot water circulation and thus, more buildings should be subjected to this calibration approach.
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Son, Vo Thanh, e n/a. "Evaluation of the USLE (Universal Soil Loss Equation) to estimate soil loss from hobby farms and commercial pastoral properties around Murrumbateman, NSW, Australia". University of Canberra. Applied Science, 1993. http://erl.canberra.edu.au./public/adt-AUC20061108.171337.

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This thesis is an evaluation of the use the USLE to estimate soil loss from two pastoral land uses - commercial properties and "hobby farms" in Murrumbateman. Sensitivity analysis was used to evaluate the USLE components. Sediment measurement in farm dams was taken to estimate sediment yield from several sites, as an alternative approach to study soil loss. The annual soil loss from entire study area was 0.25 t/ha/year whilst these figures from commercial properties and hobby farms were 0.29 t/ha/year and 0.21 t/ha/year, respectively. The annual average sediment yield from three catchments in hobby farms was 0.3 t/ha/year. The USLE was found to be highly sensitive to slope steepness, ground cover and stocking rates. The critical values were 16% for slopes, 35% for the ground cover and 19 Dry Sheep Equivalent/ha for stocking rate. I tentatively conclude that the USLE is sufficiently sensitive to detect differences in soil loss between the two land uses. There is, however, a need to improve the operation of the model in some respects. The use of farm dams for estimating sediment yield also shows promise.
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Abdullah, Wan Mohammad H. W. "The effect of moisture loss on the mechanical and sensory properties of carrots". Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239066.

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Chen, Jonathan. "DEVELOPMENT OF A MUFFLER INSERTION LOSS FLOW RIG". UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/131.

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Mufflers and silencers are commonly used to attenuate noise sources such as internal combustion engines and HVAC systems. Typically, these environments contain mean flow that can affect the acoustic properties of the muffler components and may produce flow generated noise. To characterize the muffler performance, common metrics such as insertion and transmission loss and noise reduction are used in industry. Though transmission loss without flow is often measured and is a relatively simple bench top experiment and useful for model validation purposes, mean flow can significantly affect the muffler performance. There are a few existing and commercial transmission loss rigs that incorporate flow into the measurement procedure. These rigs are useful for model verification including flow but do not predict how the muffler will perform in the system since the source, termination, and pipe lengths significantly impact performance. In this research, the development of an insertion loss test rig is detailed. This testing strategy has the advantage of being simpler, quantifying the self-generated noise due to flow, and taking into account the effect of tailpipe length and a realistic termination. However, the test does not include the actual source and is not as useful for model validation. An electric blower produces the flow and a silencer quiets the flow. Loudspeakers are positioned just downstream of the flow silencer and they are used as the sound source. The low frequency source is a subwoofer installed in a cylindrical enclosure that includes a conical transition from speaker to pipe. Special care is taken to reduce any flow generated noise. Qualification of the system is detailed by comparing the measured transmission loss, noise reduction, and insertion loss to one-dimensional plane wave models. The results demonstrate that the developed rig should be useful as a muffler evaluation tool after a prototype has been constructed. The rig can also be used for transmission loss and noise reduction determination which will prove beneficial for laboratory testing.
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Pardo, Vivé Enric. "Geometry Effects on the Electromagnetic Properties of Linear Magnetic Materials and Superconductors in the Critical State". Doctoral thesis, Universitat Autònoma de Barcelona, 2004. http://hdl.handle.net/10803/3356.

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Efectes de Geometria en les Propietats Electromagnètiques de Materials Lineals i de Superconductors en l'Estat Crític
El comportament electromagnètic d'un cert material no només depèn de les seves propietats intrínseques sinó també de la geometria de la mostra estudiada. De fet, algunes magnituds magnètiques en mostres del mateix material però geometria diferent poden diferir en varis ordres de magnitud.
La tesi està dividida en dues parts. La primera part està dedicada a l'estudi dels efectes de geometria, també denominats efectes desimantadors, en mostres de materials lineals, homogenis i isòtrops (LHI) sota l'aplicació d'un camp magnètic uniforme. Per quantificar els efectes desimantadors en les magnituds magnètiques més rellevants en materials LHI s'utilitzen els factors de desimantació fluxmètric i magnetomètric (Nf i Nm); el seu càlcul teòric és necessari per poder determinar algunes propietats intrínseques dels materials a partir d'experiments. Després de detectar grans mancances en els resultats teòrics previs dels factors de desimantació per prismes rectangulars, presentem nombrosos càlculs originals de Nf i Nm. Pels casos de prismes infinitament llargs i prismes quadrats finits Nf i Nm es calculen per un rang ampli de relació gruix-amplada i susceptibilitat magnètica. Pel cas d'un prisma finit perfectament diamagnètic es presenta un estudi sistemàtic dels factors de desimantació en funció de les dimensions relatives del prisma a partir de càlculs precisos. També es calculen resultats numèrics per cilindres amb camp aplicat en la direcció radial, situació per la que existien molt poques dades.
L'altra part de la tesi consisteix en un estudi de superconductors durs, que són materials molt interessants per aplicacions pràctiques. En aquest cas, l'estudi es centra en algunes geometries infinitament llargues immerses en un camp magnètic altern i uniforme aplicat en direcció transversal o bé que transporten un corrent elèctric altern. Concretament, s'estudien amb detall les geometries de prisma infinit de secció rectangular, el·líptica i varis casos de conjunts de múltiples prismes rectangulars. L'estudi d'aquestes geometries és de gran importància pràctica a l'hora de dissenyar cintes i cables superconductors per treballar en dispositius elèctrics en corrent altern, pels que és fonamental la reducció de les pèrdues energètiques per la viabilitat de la tecnologia basada en cables superconductors. Per fer l'estudi esmentat es desenvolupa un mètode numèric basat en el model d'estat crític per superconductors i la minimització de l'energia magnètica. Pels casos de camp magnètic aplicat, el mètode permet descriure dos tipus de connexió entre filaments, elèctricament aïllats un a un o interconnectats entre sí al extrems dels prismes. Malgrat que el primer tipus de connexió és la que presenta pèrdues energètiques més baixes, no havia estat possible simular-lo fins ara. Els resultats numèrics obtinguts a partir d'aquest mètode són originals i de gran precisió. A més, la descripció sistemàtica del problema permet realitzar un estudi en profunditat de les propietats electromagnètiques per aquestes geometries, gràcies al que s'obtenen unes tendències bàsiques per reduir les pèrdues energètiques.
The electromagnetic behaviour of a certain material do not only depends on its internal properties but also on the geometry of the studied sample. Actually, some magnetic quantities in samples of the same material but different geometry can vary in several orders of magnitude.
The thesis is divided into two parts. In the first part we study the geometry effects, also called demagnetizing effects, in samples made of linear homogenous isotropic materials (LHI) subjected to a uniform applied magnetic field. In order to quantify the demagnetizing effects on the most relevant magnetic quantities of the samples, we carry out accurate calculations for the fluxmetric and magnetometric demagnetizing factors (Nf and Nm); the calculation of these factors is needed to determine some internal magnetic properties of materials from experiments. After detecting some important lacks in the already existing theoretical results for rectangular prisms, we present a complete set of original calculated data of Nf and Nm. For the cases of infinitely long rectangular prisms and finite square bars we calculate Nf and Nm for a wide range of thickness-to-width aspect ratio and magnetic susceptibility. For the case of a perfectly shielding rectangular prism, we present a systematic study of the demagnetizing factors as a function of the relative dimensions of the prism by means of accurate numerical calculations. Numerical results are also presented for cylinders under radial applied field, situation for which there existed very few data.
The other part of the thesis consists in a study of hard superconductors, which are materials very interesting for applications. For this case, we have focused on some infinitely long geometries subjected to either a transverse AC applied field or a transport alternating current. Specifically, there have been studied in detail the geometries of an infinitely long prism with rectangular cross-section, elliptical one and some arrangements of several rectangular prisms. The study of these geometries is of great practical importance for the design of superconducting tapes and cables for devices operating in AC conditions, for which the reduction of the AC loss is of vital importance for the viability of the technology based on superconducting wires. In order to do such an study, we develop a numerical method based on the critical-state model for superconductors and magnetic energy minimization. For the cases considering an applied magnetic field, the method allows the description of two different kinds of filament connexion, mutually electrically isolated or interconnected at the ends of the prisms. Although the first kind of connection presents lower AC loss, this situation has not been simulated until now by any author. The numerical results obtained from this method are original and very accurate. Furthermore, the systematic study of the problem provides a deep understanding of the electromagnetic properties for these geometries, thanks to which we obtain some general trends to reduce the AC loss.
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Chen, Xinyue. "Understanding Loss Mechanisms and Enhancing Dielectric Properties of Multilayer Polymer Films for Capacitor Applications". Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1584527483998243.

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Libri sul tema "Properties loss"

1

Church, Ronald H. Dielectric properties of low-loss minerals. [Pittsburgh]: U.S. Dept. of the Interior, 1988.

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Church, Ronald H. Dielectric properties of low-loss minerals. Washington, DC: U.S. Bureau of Mines, 1988.

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3

Davis, Bob. Manufactured homes acquisition program: Heat loss assumptions, calculations, and heat loss coefficient tables. Seattle, WA: Ecotope, Inc., 1992.

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Center, Langley Research, a cura di. Broadband transmission loss due to reverberant excitation. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1999.

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5

Vanuatu. Office of the Ombudsman. Public report on the loss of properties at Santo Police Station. Republic of Vanuatu: Office of the Ombudsman, 1999.

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Cravey, Robin L. W-band transmission measurements and X-band dielectric properties measurements for a radome material sample. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Cravey, Robin L. W-band transmission measurements and X-band dielectric properties measurements for a radome material sample. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Cravey, Robin L. W-band transmission measurements and X-band dielectric properties measurements for a radome material sample. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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L, Tiemsin Pacita, e Langley Research Center, a cura di. W-band transmission measurements and X-band dielectric properties measurements for a radome material sample. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Boyd, Christopher Fred. Predictions of spent fuel heatup after a complete loss of spent fuel pool coolant. Washington, DC: Safety Margins and Systems Analysis Branch, Office of Nuclear Regulatory Research, Nuclear Regulatory Commission, 2000.

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Capitoli di libri sul tema "Properties loss"

1

Maciulaitiene, Ruta, e Ingrida Januleviciene. "Structure Loss". In Biophysical Properties in Glaucoma, 133–38. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-98198-7_18.

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Maciulaitiene, Ruta, e Ingrida Januleviciene. "Function Loss". In Biophysical Properties in Glaucoma, 139–43. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-98198-7_19.

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Kuzmiene, Loreta. "Visual Field Loss in Glaucoma". In Biophysical Properties in Glaucoma, 115–26. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-98198-7_16.

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Panda, Subhabrata. "Soil Properties Responsible for Soil Loss". In SpringerBriefs in Molecular Science, 13–34. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15405-8_2.

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Sohmen, E., E. Pellegrin, S. L. Drechsler e J. Fink. "Electron Energy-Loss Spectroscopy on Doped and Undoped ß-Carotene". In Electronic Properties of Polymers, 248–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_46.

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Coote, Jonathan E., e Neil S. Headings. "Revised Method For Graphite Weight Loss Prediction". In Modelling and Measuring Reactor Core Graphite Properties and Performance, 76–83. Cambridge: Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/9781849735179-00076.

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Berghöfer, Thomas W., e Jürgen H. M. M. Schmitt. "X-ray Properties of Early-Type Stars". In Pulsation, Rotation and Mass Loss in Early-Type Stars, 200–201. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1030-3_50.

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Liu, Kun, Daifen Chen, Serhiy Serbin e Volodymyr Patlaichuk. "Features of the Actual Profile Flow. Cascade Loss Classification". In Gas Turbines Structural Properties, Operation Principles and Design Features, 59–73. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0977-3_5.

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Botton, G. A., G. Y. Guo, W. M. Temmerman e C. J. Humphreys. "Electron Energy Loss Spectroscopy as a Tool to Probe the Electronic Structure in Intermetallic Alloys". In Properties of Complex Inorganic Solids, 175–80. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5943-6_22.

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Darvish, Shadi, Ali Karbasi, Surendra K. Saxena e Yu Zhong. "Weight Loss Mechanism of (La0.8Sr0.2)0.98MnO3±δDuring Thermal Cycles". In Mechanical Properties and Performance of Engineering Ceramics and Composites X, 93–99. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119211310.ch11.

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Atti di convegni sul tema "Properties loss"

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Vu, Minh, Hamid Bagheri, Lisong Xu, Wei Sun e Mingrui Zhang. "Scalable Verification of Multi-ACK Properties in Loss-Based Congestion Control Implementations". In 2024 IEEE 32nd International Conference on Network Protocols (ICNP), 1–12. IEEE, 2024. https://doi.org/10.1109/icnp61940.2024.10858512.

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Stoll, Katherine, Harish B. Bhandari, Oleg Maksimov, Katherine Hansen, Lionel Kimerling, Anuradha Agarwal e Samuel Serna. "Nonlinear Properties of Hybrid ZnTe-on-SiN Waveguides". In Frontiers in Optics, FM3E.6. Washington, D.C.: Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.fm3e.6.

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A novel ZnTe-on-SiN waveguide system is presented and demonstrates a negligible TPA coefficient with a comparable nonlinear Kerr refractive index to conventional pure silicon to enable efficient nonlinear devices with minimal absorption loss.
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Wang, Mengyun, June Sang Lee, Samarth Aggarwal, Nikolaos Farmakidis, Yuhan He, Tangsheng Cheng e Harish Bhaskaran. "Tunable metasurfaces using ultralow-loss phase-change materials". In Photonic and Phononic Properties of Engineered Nanostructures XIII, a cura di Ali Adibi, Shawn-Yu Lin e Axel Scherer. SPIE, 2023. http://dx.doi.org/10.1117/12.2650320.

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Lan, Shoufeng, Sean P. Rodrigues, Mohammad Taghinejad, Lei Kang, Devin K. Brown, Augustine M. Urbas e Wenshan Cai. "Geometrically-induced loss suppression in plasmoelectronic nanostructures (Conference Presentation)". In Photonic and Phononic Properties of Engineered Nanostructures VII, a cura di Ali Adibi, Shawn-Yu Lin e Axel Scherer. SPIE, 2017. http://dx.doi.org/10.1117/12.2251429.

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Várallyay, Zoltán, Tamás Mihálffy, Sándor Bilicz, Gábor Varga e Kazunori Mukasa. "Microbending Loss Properties of Different Fiber Designs". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/ofc.2021.th1a.49.

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Liu, Jun, e Mark Crovella. "Using loss pairs to discover network properties". In the First ACM SIGCOMM Workshop. New York, New York, USA: ACM Press, 2001. http://dx.doi.org/10.1145/505202.505219.

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Zhu, Muliang, Sajjad Abdollahramezani, Omid Hemmatyar e Ali Adibi. "Tunable third-harmonic generation using low-loss phase change chalcogenides". In Photonic and Phononic Properties of Engineered Nanostructures XI, a cura di Ali Adibi, Shawn-Yu Lin e Axel Scherer. SPIE, 2021. http://dx.doi.org/10.1117/12.2590709.

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Dal Negro, Luca. "Engineering light scattering with low-loss dielectric nanostructures (Conference Presentation)". In Photonic and Phononic Properties of Engineered Nanostructures VIII, a cura di Ali Adibi, Shawn-Yu Lin e Axel Scherer. SPIE, 2018. http://dx.doi.org/10.1117/12.2297712.

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Muskens, Otto L., Daniel Lawson, Sophie Blundell, Matthew Delaney, Dan Hewak e Ioannis Zeimpekis. "Programmable and switchable nanophotonics using ultralow-loss phase change materials". In Photonic and Phononic Properties of Engineered Nanostructures XIII, a cura di Ali Adibi, Shawn-Yu Lin e Axel Scherer. SPIE, 2023. http://dx.doi.org/10.1117/12.2661041.

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Lyon, Keenan A., Zoran L. Miskovic, Alain C. Diebold e Juan-Carlos Idrobo. "Modeling ellipsometry and electron energy loss spectroscopy of graphene". In ELECTRONIC, PHOTONIC, PLASMONIC, PHONONIC AND MAGNETIC PROPERTIES OF NANOMATERIALS. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4870212.

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Rapporti di organizzazioni sul tema "Properties loss"

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Howe, James M. Using Plasmon Peaks in Electron Energy-Loss Spectroscopy to Determine the Physical and Mechanical Properties of Nanoscale Materials. Office of Scientific and Technical Information (OSTI), maggio 2013. http://dx.doi.org/10.2172/1078573.

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Leis, Brian, Xian-Kui Zhu e Tom McGaughy. PR185-173611-R01 Applicability of Existing Metal-Loss Criteria to Low-Hardening Steels. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), febbraio 2020. http://dx.doi.org/10.55274/r0011652.

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This two-year project has evaluated the applicability of B31G and Modified B31G corrosion assessment criteria for applications to low-hardening pipe steels, whereas these criteria were originally developed and calibrated for high-hardening steels common in lower strength grades and in older steel production. This project builds upon work completed in EC-2-6 and EC-2-7 by trending changes in pipe properties over time, and by quantifying the role of the flow response, including the influence of strain hardening on failure response and predicted failure pressure for metal loss defects in pipelines. This report presents the outcomes of this two-year project in regard to the need for corrections for these criteria, and where required considers suggested corrections to ensure the usual margin of safety afforded by these criteria.
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Leis, Brian, Xian-Kui Zhu e Tom McGaughy. PR-185-143600-R01 Assessment of Corrosion Model Error for Metal-loss Defects in Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), luglio 2017. http://dx.doi.org/10.55274/r0011031.

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This project assessed the modeling error of current Level 1 corrosion criteria of ASME B31G and Modified B31G by quantifying the role of the shape factor (SF) and the bulging factor (BF) as causes for large scatter of failure predictions. The goal was to minimize the error and to reduce the conservatism in those corrosion assessment models and potentially reduce unwarranted maintenance efforts without increasing operator risk. Extensive elastic-plastic finite element analyses (FEA) were performed on corroded pipes in three-dimensional conditions for a wide range of corrosion defect shapes and sizes, pipe geometries, grades, and material properties. The FEA results were trended as the basis to reformulate a new corrosion criterion.
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Krivoi, Kallmeyer e Baranyak. L52199 Nopig Metal-Loss Detection System for Non-Piggable-Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), febbraio 2005. http://dx.doi.org/10.55274/r0011343.

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This project investigated and upgraded the digital filtering used to interpret NoPig displacement data. This upgrade should allow the system to be used on long seam welded pipes. Limited laboratory testing was performed to show the improvement on ERW pipe. The NoPig method is a non-destructive testing method for unpiggable pipelines which uses above ground measurements for detecting and sizing wall thickness anomalies like corrosion. The method uses an applied current containing several distinct frequencies between two points on a pipeline up to 1 km apart. The resultant magnetic field is measured above ground along the pipe. The measurement data is processed to determine the deviation of an equivalent current line from the center of the pipe, called displacement. Due to the skin effect and the magnetic stray flux, variation of the displacement with frequency indicates a local wall thinning of the pipeline. ERW-pipes produce an offset in displacements caused by different magnetic and electric properties in the area of the long seam. This offset changes from joint to joint because the clock position of long seams in neighboring joints is different. In order to detect defects this offset must be filtered or removed from the data. The filtering procedure and software developed in this project significantly enhances the probability of detection in ERW pipelines over previous filtering schemes. Additionally upgrades in the system hardware reduced uncertainty in the definition of displacements. In the limited data set of a few pipe joints possessed at NoPig�s Hildesheim offices, defect detection was improved from 45% to 90% in and ERW pipe with artificial defects. Although these results are very encouraging a larger more controlled test is needed to determine the probability of detection for the NoPig system in long seam welded pipe.
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Haggag. L52280 In-Situ Measurement of Pipeline Mechanical Properties Using Stress-Strain Microprobe - Validation. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), aprile 2007. http://dx.doi.org/10.55274/r0010668.

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Abstract (sommario):
Most pipeline companies operate infrastructure that spans a wide range of vintages including pipelines that were built in 1950s to the 2000s. Some of the pipelines have changed hands, and in many cases, more than once, resulting in a loss of the operating history and of pertinent pipeline data relating to the grade or mechanical properties. In the case of pipelines of unknown grades, PHMSA (OPS/DOT) stipulates the assumption of a 24 ksi yield strength, regardless of its construction. OPS also allows the establishment of the Specified Minimum Yield Strength (SMYS) of the pipeline by verifying its yield strength by carrying out statistically valid sampling. Conventional tensile testing requires the removal of samples from the pipeline for testing which results in temporary line shut down and loss of transmission service. The constructability issues around this are complex, and it requires line repair after sample extraction. In addition, this can result in a loss of throughput and consequent disruption of supply. An appropriate and relevant amount of data from the nondestructive Automated Ball Indentation (ABI) tests and the destructive tensile and fracture toughness tests provides reasonable statistical data sets to establish the validity and accuracy of the ABI technique which produces both tensile and fracture toughness properties from each single test. The ABI test (accomplished in less than two minutes) is now proven to replace both the tensile and fracture toughness tests without specimen machining or service interruption, and it requires only localized surface polishing of in-service pipelines.
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French, T. R., e C. B. Josephson. The effect of polymer-surfactant interaction on the rheological properties of surfactant enhanced alkaline flooding formulations. [Phase separation, precipitation and viscosity loss]. Office of Scientific and Technical Information (OSTI), febbraio 1993. http://dx.doi.org/10.2172/6781205.

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Leis e Zhu. PR-003-103603-R01 Assessing Corrosion Severity for High-Strength Steels. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), agosto 2014. http://dx.doi.org/10.55274/r0010821.

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Abstract (sommario):
This project was directed at isolating the effects of the metal-loss geometry and the properties of the steels, as the basis to quantify the effects of the metal loss geometry and to seamlessly consolidate the databases and integrate severity criteria for the vintage and higher-strength grades, to make corrosion management seamless across grade.
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Zhang, Renduo, e David Russo. Scale-dependency and spatial variability of soil hydraulic properties. United States Department of Agriculture, novembre 2004. http://dx.doi.org/10.32747/2004.7587220.bard.

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Abstract (sommario):
Water resources assessment and protection requires quantitative descriptions of field-scale water flow and contaminant transport through the subsurface, which, in turn, require reliable information about soil hydraulic properties. However, much is still unknown concerning hydraulic properties and flow behavior in heterogeneous soils. Especially, relationships of hydraulic properties changing with measured scales are poorly understood. Soil hydraulic properties are usually measured at a small scale and used for quantifying flow and transport in large scales, which causes misleading results. Therefore, determination of scale-dependent and spatial variability of soil hydraulic properties provides the essential information for quantifying water flow and chemical transport through the subsurface, which are the key processes for detection of potential agricultural/industrial contaminants, reduction of agricultural chemical movement, improvement of soil and water quality, and increase of agricultural productivity. The original research objectives of this project were: 1. to measure soil hydraulic properties at different locations and different scales at large fields; 2. to develop scale-dependent relationships of soil hydraulic properties; and 3. to determine spatial variability and heterogeneity of soil hydraulic properties as a function of measurement scales. The US investigators conducted field and lab experiments to measure soil hydraulic properties at different locations and different scales. Based on the field and lab experiments, a well-structured database of soil physical and hydraulic properties was developed. The database was used to study scale-dependency, spatial variability, and heterogeneity of soil hydraulic properties. An improved method was developed for calculating hydraulic properties based on infiltration data from the disc infiltrometer. Compared with the other methods, the proposed method provided more accurate and stable estimations of the hydraulic conductivity and macroscopic capillary length, using infiltration data collected atshort experiment periods. We also developed scale-dependent relationships of soil hydraulic properties using the fractal and geostatistical characterization. The research effort of the Israeli research team concentrates on tasks along the second objective. The main accomplishment of this effort is that we succeed to derive first-order, upscaled (block effective) conductivity tensor, K'ᵢⱼ, and time-dependent dispersion tensor, D'ᵢⱼ, i,j=1,2,3, for steady-state flow in three-dimensional, partially saturated, heterogeneous formations, for length-scales comparable with those of the formation heterogeneity. Numerical simulations designed to test the applicability of the upscaling methodology to more general situations involving complex, transient flow regimes originating from periodic rain/irrigation events and water uptake by plant roots suggested that even in this complicated case, the upscaling methodology essentially compensated for the loss of sub-grid-scale variations of the velocity field caused by coarse discretization of the flow domain. These results have significant implications with respect to the development of field-scale solute transport models capable of simulating complex real-world scenarios in the subsurface, and, in turn, are essential for the assessment of the threat posed by contamination from agricultural and/or industrial sources.
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King e Jack. L51906 The Role of Redox and Corrosion Potentials in the Corrosion of Line Pipe Steel. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), settembre 2001. http://dx.doi.org/10.55274/r0010374.

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A combined lab and field program has been performed to study the external corrosion behaviour of buried linepipe. The overall aim of the project was to attempt to correlate pipe damage with measurable soil properties, in particular the redox potential as measured by buried soil probes. The lab component of the project involved the measurement of weight-loss corrosion rates in three types of soil, under saturated and as-received moisture conditions, and under permanently aerobic, permanently anaerobic or cyclic anaerobic/aerobic redox conditions. The soil conditions and coupon corrosion potentials were monitored during the course of the tests. In the field component of the study, pipe-depth soil properties were monitored using permanent NOVAProbes to measure the redox potential, soil resistivity, pH and temperature. Daily readings were taken at some locations with the aid of a custom-designed datalogger. Corrosion information was obtained from buried weight-loss or electrochemical coupons, from pipe excavations or from data from repeat in-line inspection runs.
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Tiku, Sanjay, Aaron Dinovitzer, Vlad Semiga e Binoy John. PR-214-073510-Z01 FS Fatigue Testing Plain Dents+Dents Interacting with Welds and Metal Loss with Data. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), agosto 2018. http://dx.doi.org/10.55274/r0011514.

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Dents in buried pipelines occur due to a number of potential causes; the pipe resting on rock, third party machinery strike, rock strikes during backfilling, amongst others. The long-term integrity of a dented pipeline segment is a complex function of a variety of parameters, including pipe geom-etry, indenter shape, dent depth, indenter support, pressure history at and following indentation. In order to estimate the safe remaining operational life of a dented pipeline, all of these factors must be accounted for in the analysis. In order to characterize the severity of a dent on the integrity of a pipeline system, there must first be sufficient information available describing the behavior of the deformed pipe when subjected to typical loading scenarios. While there have been a number of full scale test programs that have been used to develop general trends in the behavior of dented pipe subjected to cyclic pressure loads, these programs have not produced sufficiently detailed information in terms of material properties, dent and pipe response to pressure loading, to form the basis of a severity assessment criterion. The objective of the current project was to generate full scale dent fatigue test data necessary to develop, validate and/or evaluate dent models capable of predicting cyclic internal pressure related failures of a pipe segment. The data generated included: detailed material characterization of the pipes involved in full scale test program, dent profile measurement, dent strains during dent for-mation and cyclic loading and recording of the details of fatigue crack location and orientation within a dent. The test program developed detailed experimental data for: - Unrestrained plain dents, - Restrained plain dents, - Dents interacting with welds and - Dents interacting with metal loss.
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