Academic literature on the topic 'Parametr K(t)'

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Parametr K(t).'

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

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

Journal articles on the topic "Parametr K(t)"

1

DOLIŃSKA, Anna, Dariusz GÓRKA, Michał TRZĘSICKI, Natalia BIAŁOŃ, and Mikołaj GÓRKA. "The role of training and hyperbaria in the rehabilitation process after crushing injury of the sciatic nerve in mice - assessment of functional parameters using the CATWALK XT platform." Journal of Education, Health and Sport 13, no. 4 (2023): 150–59. https://doi.org/10.12775/JEHS.2023.13.04.016.

Full text
Abstract:
<strong>DOLIŃSKA, Anna, G&Oacute;RKA, Dariusz, TRZĘSICKI, Michał, BIAŁOŃ, Natalia &amp; G&Oacute;RKA, Mikołaj. The role of training and hyperbaria in the rehabilitation process after crushing injury of the sciatic nerve in mice - assessment of functional parameters using the CATWALK XT platform</strong><strong>.</strong>&nbsp;<strong>Journal of Education, Health and Sport. 202</strong><strong>3</strong><strong>;1</strong><strong>3</strong><strong>(</strong><strong>4</strong><strong>):</strong><strong>150-159.</strong><strong>&nbsp;eISSN 2391-8306. DOI </strong><strong>http://dx.doi.org/10.1277
APA, Harvard, Vancouver, ISO, and other styles
2

TABUCHI, Toshiaki, Takashi SOEDA, Terushige KAWATA, and Mitsuru SOEDA. "Parameter Estimation of ARMA Process by Taking into Consideration of ^|^part;kx(t)/^|^part;^|^alpha;T^|^middot;^|^epsilon;(t)." Transactions of the Society of Instrument and Control Engineers 24, no. 4 (1988): 357–62. http://dx.doi.org/10.9746/sicetr1965.24.357.

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

Petzschner, Frederike H., Irene P. Ponce, Martin Blaimer, Peter M. Jakob, and Felix A. Breuer. "Fast MR parameter mapping using k-t principal component analysis." Magnetic Resonance in Medicine 66, no. 3 (2011): 706–16. http://dx.doi.org/10.1002/mrm.22826.

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

Falcon, Sergio. "On the Extended (k, t) - Fibonacci Numbers." Journal of Advances in Mathematics and Computer Science 39, no. 7 (2024): 81–89. http://dx.doi.org/10.9734/jamcs/2024/v39i71914.

Full text
Abstract:
This article studies an extension of the concept of k-Fibonacci numbers by introducing a new non-zero positive integer parameter t. In case t = 1, the numbers found are the Leonardo numbers. A homogeneous recurrence relationship is found between these new numbers, and various formulas are studied such as the Binet Identity or the generating function.
APA, Harvard, Vancouver, ISO, and other styles
5

Shankar, Sujay, Michael A. Gully-Santiago, and Caroline V. Morley. "A New Hybrid Machine Learning Method for Stellar Parameter Inference." Astrophysical Journal 985, no. 1 (2025): 68. https://doi.org/10.3847/1538-4357/adcb47.

Full text
Abstract:
Abstract The advent of machine learning (ML) is revolutionary to numerous scientific disciplines, with a growing number of examples in astronomical spectroscopic inference, as ML is more powerful than traditional techniques. Here we introduce a hybrid ML (HML) method combining automatic differentiation, interpolation, and Bayesian optimization to infer stellar parameters of stellar spectra. We study T eff, log ( g ) , and [Fe/H], but this method could be extended to other parameters such as [α/Fe] (alpha element abundance), C/O (carbon–oxygen ratio), and f sed (sedimentation efficiency). We fi
APA, Harvard, Vancouver, ISO, and other styles
6

Chuan-Hui, N., and S. Xiao-Bao. "Grüneisen parameter of lithium, sodium and potassium at T=298 K." Journal of Physics and Chemistry of Solids 62, no. 7 (2001): 1359–61. http://dx.doi.org/10.1016/s0022-3697(01)00007-5.

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

Магомедов, Рамазан Абдуллаевич, and Энвер Нариманович Ахмедов. "WATER VAPOR P-p-T PROPERTIES CALCULATION IN THE TEMPERATURE RANGE FROM 773 K TO 1673 K." Physical and Chemical Aspects of the Study of Clusters, Nanostructures and Nanomaterials, no. 14 (December 15, 2022): 298–306. http://dx.doi.org/10.26456/pcascnn/2022.14.298.

Full text
Abstract:
В работе представлен расчёт изотерм уравнения состояния водяного пара в диапазоне температур от Т = 773 K до Т = 1673 K. Расчёт произведён с помощью специально разработанного программного модуля «Fract EOS». Предложен подход повышающий точность расчётов ранее описной методики. Если имеются табличные данные соотношения P-V-T (P-p-T) для нескольких температур и полученные по ним зависимости показателя производной дробного порядка ) (который является подгоночным), то можно с помощью интерполяции по температуре для нескольких значений плотности получить зависимость для температуры внутри диапазона
APA, Harvard, Vancouver, ISO, and other styles
8

Deshmukh, Mangesh R., Ganesh M. Bansode, and Pallavi Mahajan. "EVALUATION OF POTATO CULTIVAR FOR GROWTH AND YIELD PARAMETER." World Journal of Biology and Biotechnology 3, no. 1 (2018): 203. http://dx.doi.org/10.33865/wjb.003.01.0138.

Full text
Abstract:
The present investigation on evaluation of varietal performance of various potato varieties under Pune Conditions was initiated in Oct 2012. Potato tubers of Kufri Lauvkar, Kufri Badshah, Kufri Pushkar, Kufri Surya, Kufri Khyati, Kufri Ashoka, Kufri Jyoti, Kufri Pukharaj were planted on ridges and furrows. The results revealed that Kufri Surya recorded significantly higher total tuber yield (20.67 t/ha) followed by Kufri Pukharaj (18.45 t/ha). However percent plant emergence and foliage senescence were found non-significant. Whereas results in respect of yield depicted that the variety Kufri L
APA, Harvard, Vancouver, ISO, and other styles
9

Mukherjee, Somnath. "Some Studies on K-essence Lagrangian." International Journal of Innovative Research in Physics 2, no. 2 (2021): 9–14. http://dx.doi.org/10.15864/ijiip.2202.

Full text
Abstract:
K-essence Lagrangian is studied in the context of an early universe epoch when t → 0. Equation of state parameter ω &lt; −1 as well as deceleration parameter q0 &lt; −1, indicates an accelerated expansion of the universe at an early epoch of time driven by negative pressure generated by dark energy.
APA, Harvard, Vancouver, ISO, and other styles
10

Ye, Wen Ming, Xu Teng Hu, Wan Lin Guo, and Ying Dong Song. "Three Dimensional Criterion for Creep Crack Propagation in C(T) Specimen." Applied Mechanics and Materials 853 (September 2016): 142–47. http://dx.doi.org/10.4028/www.scientific.net/amm.853.142.

Full text
Abstract:
Experimental of two kinds of compact tension (CT) specimens’ creep crack propagation are carried out in this paper. Traditional fracture mechanics and three-dimensional fracture theory are compared and the results show that: The K-Tz two-parameter model can eliminate the thickness-effect on the crack growth rates in the relatively low K range, however when K exceed certain values the effect of thickness for crack growth rates still exists; The Ct and Ct-Tz model can describe the thickness-effect of creep crack growth rates in regions of high Ct; When the crack tip stress intensity factor K of
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Parametr K(t)"

1

Kokeš, Miroslav. "Porovnání metod pro identifikaci poruch valivých ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442447.

Full text
Abstract:
The aim of this master thesis is the comparison of selected methods and parameters for roller bearings diagnostics. Selected statistical parameters are kurtosis, crest factor, and parameter K(t). The other selected methods are envelope analysis, cepstral analysis, and ACEP method. These methods are implemented in LabVIEW software and compared based on noise resistance, computation speed, and overall capability of identifying roller bearing faults.
APA, Harvard, Vancouver, ISO, and other styles
2

Schmidt, Sarah J., Erika L. Wagoner, Jennifer A. Johnson, et al. "Examining the relationships between colour, T eff , and [M/H] for APOGEE K and M dwarfs." OXFORD UNIV PRESS, 2016. http://hdl.handle.net/10150/621724.

Full text
Abstract:
We present the effective temperatures (T-eff), metallicities, and colours in Sloan Digital Sky Survey (SDSS), Two Micron All Sky Survey, and Wide-field Infrared Survey Explorer filters, of a sample of 3834 late-K and early-M dwarfs selected from the SDSS Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectroscopic survey ASPCAP (APOGEE Stellar Parameters and Chemical Abundances Pipeline) catalogue. We confirm that ASPCAP T-eff values between 3550 < T-eff < 4200 K are accurate to similar to 100 K compared to interferometric T-eff values. In that same T-eff range, ASPCAP metalli
APA, Harvard, Vancouver, ISO, and other styles
3

KUMAR, RAJESH. "DETERMINATION OF K-T PARAMETERS USING BUTTERWORTH FILTER." Thesis, 2013. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14200.

Full text
Abstract:
The spectral content and duration of some major Indian earthquake time-histories or strong-motion accelerogramshave been studied with an aim of quantifying the uncertainty of ground motion. Ground motions are characterized by Kanai-Tajimiparameters based on spectral density function which has been computed using Butterworth filter. Parameters are estimated for each record based on the method of spectral moments. The statistics and dependencies of the parameters are evaluated, and in particular, correlations between the Kanai-Tajimi parameters, maximum ground acceleration, epicentral distance,
APA, Harvard, Vancouver, ISO, and other styles
4

Alt, Hans-Marian Rücker Thomas Wabbel Thomas. "Ableitung von Regeln zur Optimierung der PAC-Parameter z, k und t in mehrstufigen PAC-gesteuerten Produktionssystemen mit einem und mehreren Endprodukten /." 2005. http://www.gbv.de/dms/ilmenau/abs/509129633alt.txt.

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

Books on the topic "Parametr K(t)"

1

Kachelriess, Michael. Cosmological models for an homogeneous, isotropic universe. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198802877.003.0020.

Full text
Abstract:
The universe is homogeneous and isotropic on sufficiently large scales. The metric which describes such a space-time is derived and it is shown that it is determined by the scale factor a(t) and the parameter k distinguishing between hyperbolic, flat, or spherical 3-spaces. The Friedmann equations, which describe the time evolution of these models, are derived and specific models are discussed.
APA, Harvard, Vancouver, ISO, and other styles
2

Ryazantsev, Sergey, Tamara Rostovskaya, Olga Vorobyeva, Alexander Zubko, Mehdi Afzali та Timur Miryazov. Аtlas of socio-demographic development of Russia and Iran / S. V. Ryazantsev, T. K. Rostovskaya, O. D. Vorobyeva [et al.]; FCTAS RAS. – M.: Perspectiva Publishing, 2020. – 136 p. Perspectiva Publishing, 2020. http://dx.doi.org/10.38085/978-5-905-790-46-1-2020-1-136.

Full text
Abstract:
The Atlas of the Socio-Demographic Development of Russia and Iran is a comprehensive scientific and practical publication that presents a cartographic model of cross-country comparisons of the socio-demographic development of the states. The model helps to obtain information about the main parameters of the socio-demographic situation in comparison with similar indicators, as well as to analyze the main trends of the socio-demographic development of the state and society. The Atlas is addressed to scientists, civil servants, social workers, teachers, graduate students, students (demographers,
APA, Harvard, Vancouver, ISO, and other styles
3

Skupio, Rafał. Zastosowanie nieinwazyjnych pomiarów rdzeni wiertniczych do zwiększenia informacji na temat parametrów skał zbiornikowych. Instytut Nafty i Gazu - Państwowy Instytut Badawczy, 2022. http://dx.doi.org/10.18668/pn2022.237.

Full text
Abstract:
The research carried out in the monograph aimed to create a measurement and interpretation system which is to obtain reliable results of well logging with the accuracy of laboratory measurements. Continuous core measurements allow for the generation of logging results without the impact of the borehole and facilitate the depth matching of the core to well log data. Four main chapters can be distinguished in this work: research methodology with a description of the devices used; partial results of core measurements made on various types of rocks; a proposal for a research system, and comprehens
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Parametr K(t)"

1

Donkers, Huib, Bart M. P. Jansen, and Jari J. H. de Kroon. "Finding k-Secluded Trees Faster." In Graph-Theoretic Concepts in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15914-5_13.

Full text
Abstract:
AbstractWe revisit the k-Secluded Tree problem. Given a vertex-weighted undirected graph G, its objective is to find a maximum-weight induced subtree T whose open neighborhood has size at most k. We present a fixed-parameter tractable algorithm that solves the problem in time $$2^{\mathcal {O} (k \log k)}\cdot n^{\mathcal {O} (1)}$$, improving on a double-exponential running time from earlier work by Golovach, Heggernes, Lima, and Montealegre. Starting from a single vertex, our algorithm grows a k-secluded tree by branching on vertices in the open neighborhood of the current tree T. To bound t
APA, Harvard, Vancouver, ISO, and other styles
2

Zhen, Yicun, Bertrand Chapron, and Etienne Mémin. "Bridging Koopman Operator and Time-Series Auto-Correlation Based Hilbert–Schmidt Operator." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_19.

Full text
Abstract:
AbstractGiven a stationary continuous-time process f(t), the Hilbert–Schmidt operator Aτ can be defined for every finite τ. Let λτ,i be the eigenvalues of Aτ with descending order. In this article, a Hilbert space $$\mathcal {H}_f$$ ℋ f and the (time-shift) continuous one-parameter semigroup of isometries $$\mathcal {K}^s$$ K s are defined. Let $$\{v_i, i\in \mathbb {N}\}$$ { v i , i ∈ ℕ } be the eigenvectors of $$\mathcal {K}^s$$ K s for all s ≥ 0. Let $$f = \displaystyle \sum _{i=1}^{\infty }a_iv_i + f^{\perp }$$ f = ∑ i = 1 ∞ a i v i + f ⊥ be the orthogonal decomposition with descending |ai
APA, Harvard, Vancouver, ISO, and other styles
3

Nalon, Cláudia, Ullrich Hustadt, Fabio Papacchini, and Clare Dixon. "Buy One Get 14 Free: Evaluating Local Reductions for Modal Logic." In Automated Deduction – CADE 29. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-38499-8_22.

Full text
Abstract:
AbstractWe are interested in widening the reasoning support for propositional modal logics in the so-called modal cube. The modal cube consists of extensions of the basic modal logic $$\textsf{K}_{}$$ K with an arbitrary combination of the modal axioms $$\textsf{B}$$ B , $$\textsf{D}$$ D , $$\textsf{T}$$ T , $$\textsf{4}$$ 4 and $$\textsf{5}$$ 5 . We revisit recently developed local reductions from all logics in the modal cube to a normal form comprising sets of clausal formulae with associated modal levels. We extend these reductions further to the basic modal logic $$\textsf{K}_{}$$ K , call
APA, Harvard, Vancouver, ISO, and other styles
4

Alslaihat, Motasem J., Hatem S. Widyan, Mashhoor A. Al-Wardat, Awni M. Kasawneh, Diala M. Taneenah, and Abdullah M. Hussein. "A Comprehensive Study of the Physical and Geometrical Characteristics of the Close Visual Binary System HIP 45571." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3276-3_6.

Full text
Abstract:
Abstract In this paper, we estimated the physical and geometrical characteristics of the visually close binary stellar system Hip 45571, using “Al-Wardat’s method for analyzing binary and multiple stellar systems”. We estimated the physical properties of the components of the system for the four measured parallax given by Gaia and Hipparcos, which gives a dynamical mass sum ranges between 2.43 and 2.52 solar mass using the new orbital parameters following Tokovinin’s dynamical method. The method used is a spectrophotometrical computational technique that employs Kurucz plane-parallel line-blan
APA, Harvard, Vancouver, ISO, and other styles
5

Wang, Sujing, Na Zhang, Mingfang Sun, and Chunguang Zhou. "The Analysis of Parameters t and k of LPP on Several Famous Face Databases." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21524-7_40.

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

Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced T = 300 K Other Critical Parameters Derivations that Impact FET Performance." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_4.

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

Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced T = 300 K Key Doping Ionization Related and Carrier Transport Related Parameters Derivation." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_3.

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

Ashraf, Nabil Shovon. "Incomplete Ionization Related Parameter Calculations and Device Physical Effects Without Considering Band Non Parabolicity Effect at T = 300 K." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_1.

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

Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced DOS Effective Electron Mass and Hole Effective Mass in Silicon at T = 300 K Impact on Related Parameters in Chapter 1." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_2.

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

Gräfe, Wolfgang. "The Separation of the Semi-infinite Model and the Calculation of the Surface Parameters for the Three-Dimensional body at T = 0 K (Regula Falsi of Surface Theory)." In Quantum Mechanical Models of Metal Surfaces and Nanoparticles. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19764-7_5.

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

Conference papers on the topic "Parametr K(t)"

1

McCabe, Kevin M., Samuel W. Smith, and David W. Black. "Effects of Flow Parameters on the Cathodic Protection of a Steel Plate in Natural Seawater." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85209.

Full text
Abstract:
Abstract A formula is developed which describes the transport of oxygen to the surface of a metal under cathodic polarization in seawater. The relation assumes turbulent flow conditions and a flat plate geometry. As derived in the text the limiting current density (il) for oxygen reduction is given by: il=DnFCb78.30Sc−1/3Re−9/10x+t/kwhere D is the diffusion constant of oxygen in water, n is its valence (2), F is Faraday's constant, Cb is the oxygen concentration in the bulk, Sc is the Schmidt number, Re is the Reynold's number, x is the distance from the leading edge, t is the thickness of the
APA, Harvard, Vancouver, ISO, and other styles
2

Moreira, Felipe C., and Gustavo H. B. Donato. "Estimation Procedures for J and CTOD Fracture Parameters Experimental Evaluation Using Homogeneous and Mismatched Clamped SE(T) Specimens." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25804.

Full text
Abstract:
Experimental evaluation of geometry-dependent material’s fracture resistance using constraint-designed SE(T) specimens has proved to be an accurate option to assess the structural integrity of pipelines and pressure vessels reducing excessive conservatism. In this context, this work presents procedures for experimental J-integral and CTOD (δ) evaluation using the eta (η) method applied to tension clamped SE(T) specimens made of homogeneous materials and also containing mismatched joints. Initially, the conceptual background is presented, followed by the description of the refined non-linear fi
APA, Harvard, Vancouver, ISO, and other styles
3

de Oliveira, Gabriel P., and Gustavo H. B. Donato. "Estimation Procedures for J and CTOD Fracture Parameters Experimental Evaluation Using Homogeneous and Mismatched Pin-Loaded SE(T) Specimens." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25796.

Full text
Abstract:
Experimental evaluation of geometry-dependent material’s fracture resistance using constraint-designed SE(T) specimens has proved to be an accurate option to assess the structural integrity of pipelines and pressure vessels reducing excessive conservatism. In this context, this work presents procedures for experimental J-integral and CTOD (δ) evaluation using the eta (η) method applied to tension pin-loaded SE(T) specimens made of homogeneous materials and also containing mismatched joints. Initially, the conceptual background is presented, followed by the description of the refined non-linear
APA, Harvard, Vancouver, ISO, and other styles
4

Oh, Chang-Young, Tae-Kwang Song, and Yun-Jae Kim. "An Estimation of C(t) of Transient Creep Under Combined Mechanical and Thermal Stresses." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25372.

Full text
Abstract:
In this paper, a prediction of C(t), a crack tip parameter for the transient creep condition, for the circumferential cracked pipe under combined mechanical and thermal stresses are presented. The estimation formulae for C(t)-integral of the cracked component operating under mechanical load alone have been provided for decades [1–6]. However, high temperature structures usually work under combined mechanical and thermal load. And the interactions between mechanical and thermal loads make the relaxation rate different from those produced under mechanical load alone. In this study, 3-dimensional
APA, Harvard, Vancouver, ISO, and other styles
5

Shen, Guowu, William R. Tyson, James A. Gianetto, and Dong-Yeob Park. "Effect of Side Grooves on Compliance, J-Integral and Constraint of a Clamped SE(T) Specimen." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25164.

Full text
Abstract:
The effect of side grooves on crack mouth opening displacement (CMOD) compliance, distribution of J-integral and crack-tip constraint parameters Q and A2 along the thickness of a clamped single-edge-notched tension (SE(T)) specimen were studied by finite element analysis (FEA). Focus was on the effect of depth of side grooves on J-integral and constraint parameters Q and A2 for shallow and deep cracks. The 3-D results were compared with those of SE(T) specimens in plane strain. The results show that the effective thickness equation used in ASTM E 1820 to evaluate compliance of side-grooved SE(
APA, Harvard, Vancouver, ISO, and other styles
6

Mehmanparast, A. N., C. M. Davies, and K. M. Nikbin. "Validation of the K and J Parameters in a Compact Tension Specimen Containing Intergranular and Straight Crack Paths." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25281.

Full text
Abstract:
Methods have been examined to evaluate the fracture mechanics parameters J and K in finite element (FE) analyses on a compact tension, C(T), geometry using a mesh appropriate for the evaluation of both intergranular and transgranular microstructural damage processes. Realistic grain and grain boundary microstructures were modelled using ABAQUS. Both straight and deviating crack profiles were considered, representing transgranular and intergranular crack growth processes, respectively. Elastic and elastic-plastic finite element analyses were performed on a C(T) specimen model with a standard st
APA, Harvard, Vancouver, ISO, and other styles
7

Yazdani Nezhad, Hamed, and Noel P. O’Dowd. "Prediction of Transient Creep Response Under Combined Primary and Secondary Loading." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25272.

Full text
Abstract:
Residual stress effects on creep deformation and fracture play a significant role in structural integrity assessments of engineering components. The focus of the current work is to investigate creep behaviour of mechanically loaded cracked structures in the presence of residual stress fields. Finite-element analyses have been carried out on single edge notch bend, SEN(B), and tension, SEN(T), specimens at different residual stress and mechanical stress levels. The redistribution time and associated stress relaxation for combined primary and secondary (residual) stresses have been determined (f
APA, Harvard, Vancouver, ISO, and other styles
8

Matiyev, A. Ch, and R. T. Uspazhiev. "INFLUENCE OF POLYTYPY ON PHASE TRANSITIONS IN TlGaSe2 CRYSTALS." In «АКТУАЛЬНЫЕ ВОПРОСЫ СОВРЕМЕННОЙ НАУКИ: ТЕОРИЯ, ТЕХНОЛОГИЯ, МЕТОДОЛОГИЯ И ПРАКТИКА». Международная научно-практическая онлайн-конференция, приуроченная к 60-ти летию член-корреспондента Академии наук ЧР, доктора технических наук, профессора Сайд-Альви Юсуповича Муртазаева. Crossref, 2021. http://dx.doi.org/10.34708/gstou.conf..2021.76.13.002.

Full text
Abstract:
It is shown that, in the C-polytype of TlGaSe2 crystals, the structural PT, which occurs at a temperature of T ~ 108 K, is accompanied by an abrupt change in the value of the parameter c (∆c ~ 0.004 Å). For the 2C-TlGaSe2 polytype, the c (T) dependence shows only one clearly pronounced maximum at the temperature Tc2. Moreover, at temperatures that are T1 ~ 30 K higher and T2~ 5 K below Tc2, the Curie-Weiss law is fulfilled. The absence of a fourfold increase in the parameter from the unit cell for 2C-TlGaSe2 samples in the temperature range T = 100-300 K indicates that spontaneous polarization
APA, Harvard, Vancouver, ISO, and other styles
9

Gentry, R., and Y. Nemerson. "THE ACTIVATION OF PROTHROMBIN: A LINKED REACTIVE KINETIC MODEL." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643932.

Full text
Abstract:
Prothrombin activation by factors Xa and Va is complex, involving five linked reactions occurring either in a bulk fluid phase or in a local phospholipid (PL) surface phase, each controlled by both the fundamental energetics of the species interactions and the relevant reactant concentrations. The significance of each reaction and in particular the kinetic efficiency of the PL surface reactions is yet to be resolved. Previous essentially Michaelis-Menten kinetic treatments of prothrombin activation have been derived without concern for the kinetic influence of the order of reactant assembly or
APA, Harvard, Vancouver, ISO, and other styles
10

Yin, Shengjun, Paul T. Williams, Terry L. Dickson, and B. Richard Bass. "Applicability of (K, T-Stress) Methodology to Analyze RPV Under Thermal-Hydraulic Transients." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26845.

Full text
Abstract:
The (K, T-stress) methodology developed by Gao and Dodds [1] is being utilized to introduce crack front plasticity with constraint effects when plastic deformation occurs in structures, for example, when the Reactor Pressure Vessels (RPVs) are subjected to thermal-hydraulic loadings. One crucial step in this procedure is to quantify combinations of flaw geometries and loading conditions (transient sequences) that illustrate the limits of applicability of the two-parameter (K, T-stress) advanced fracture methodology relevant to integrity analyses of RPVs subjected to normal and emergency operat
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!