Results 21 to 30 of about 4,065,582 (286)
Green Design of Novel Metal Matrix Composites
IOP Conference Series: Materials Science and Engineering, 2019 In the present research work investigations have been made for surface hardness of Al-SiC metal matrix composite (MMC) prepared by combining fused deposition modelling (FDM), vacuum moulding(VM) and stir casting process. This combination resulted into novel method for preparation of MMC as green process in single step with significant reduction in time.
Singh R. +6 more
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On the Transition Matrix and the Green Function in the Quantum Field Theory [PDF]
Progress of Theoretical Physics, 1953 The J. Schwinger's formalism of the Green function in the quantum electrodynamics is applied to the transition problem of the state. It is shown that the many body kernel in the Heisenberg representation involves the information about the transition of the state and this is dh'ectly represented by the repeated use of the one body kel'Oel G,@ and the ...
Tanaka, Shō, Umezawa, Hiroomi
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Rapid Diffusion of Green Fluorescent Protein in the Mitochondrial Matrix [PDF]
The Journal of Cell Biology, 1998 Abstract. It is thought that the high protein density in the mitochondrial matrix results in severely restricted solute diffusion and metabolite channeling from one enzyme to another without free aqueous-phase diffusion. To test this hypothesis, we measured the diffusion of green fluorescent protein (GFP) expressed in the mitochondrial matrix of ...
Partikian, Arthur +4 more
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Quantum Mechanics and Quantum Field Theory: Algebraic and Geometric Approaches
Universe, 2023 This is a non-standard exposition of the main notions of quantum mechanics and quantum field theory, including recent results. It is based on the algebraic approach in which the starting point is a star-algebra and on the geometric approach in which the ...
Igor Frolov, Albert Schwarz
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Green's relations in the matrix semigroup Mn(S)
Linear Algebra and its Applications, 1995 Let \(\mathbb{R}_+\) be the set of all nonnegative real numbers. A subset \(S\) of \(\mathbb{R}_+\) is called a strong ideal subset if \(0, 1 \in S\), \(S\) is closed under addition and multiplication, and \((1-x)^{-1} \in S\) for any \(x \in S\) with \(x < 1\). Let \(M_n(S)\) be the semigroup of all \(n \times n\)-matrices over a strong ideal subset \(
Yang, Shangjun, Zhang, Ronghua
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On the Coulomb Sturmian matrix elements of relativistic Coulomb Green’s operators [PDF]
Journal of Mathematical Physics, 1999 The Hamiltonian of the radial Coulomb Klein–Gordon and second order Dirac equations are shown to possess an infinite symmetric tridiagonal matrix structure on the relativistic Coulomb Sturmian basis. This allows us to give an analytic representation for the corresponding Coulomb Green’s operators in terms of continued fractions.
Kónya, B., Papp, Z.
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Analysis of Causal Relationships between Green Productivity Indicators with Fuzzy Cognitive Mapping Approach [PDF]
چشمانداز مدیریت صنعتی, 2019 Green productivity is a sustainable development approach. The purpose of this study is to identify green productivity Indicatorsand to determine the relationships between Indicatorsto present the model through fuzzy cognitive mapping. The fuzzy cognitive
Mehdi Nikshapoori +2 more
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Materials & DesignImproving the surface mechanical performance of titanium alloy components without sacrificing lightweight design is a key requirement for protective coating development. Here, laser-cladded MoNbTiV-based lightweight refractory high-entropy alloy coatings
Lin Chen +11 more
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Ecological soap production using green chemistry principles
Acta Scientiarum: Technology, 2023 The reuse of fatty materials for soap production is considered a viable alternative to minimize environmental problems such as the eutrophication of lakes and rivers and to reduce the high costs of effluent treatment and domestic water supply.
Nadine Cavalheiro +4 more
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