Results 101 to 110 of about 1,062,577 (312)

Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

Algebraic Geometry in Architectural Design

open access: yes, 2009
We describe the exploration of the manifold novel shapes found in algebraic geometry and their application in architectural design. These surfaces represent the zero-sets of certain polynomials of varying degrees.
G. Barczik, O. Labs, D. Lordick
core  

The geometry of some moduli schemes arising in enumerative geometry [PDF]

open access: yes
In this thesis, we work on the explicit geometric description of certain moduli schemes. Pandharipande-Thomas (PT) stable pairs provide an example of moduli spaces of objects in the derived category, whose scheme-theoretic geometry can be explored to a ...
Carlucci, Aurelio
core   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

Constitutive and Representational Algebra-Geometry Relations: A Philosophical Analysis of Algebraic Geometry, Algebraic Topology, and Derived Algebraic Geometry

open access: yes
In contemporary mathematics, algebra and geometry intertwine in diverse and subtle ways. This paper distinguishes two fundamentally different modes of algebra--geometry relations: constitutive and representational. In algebraic geometry (AG), the algebraic structure is constitutive of the geometric object: the geometry exists as an intrinsic ...
openaire   +4 more sources

Intuitionistic quantum logic of an n-level system [PDF]

open access: yes, 2009
A decade ago, Isham and Butterfield proposed a topos theoretic approach to quantum mechanics, which meanwhile has been extended by Doering and Isham so as to provide a new mathematical foundation for all of physics.
Landsman, N.P.   +19 more
core   +2 more sources

Hybrid Inertial–Centrifugal Gas–Liquid Separator: CFD‐Driven Optimization Using Coupled Discrete Phase and Wall‐Film Modeling With Response Surface Methodology

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient removal of liquid aerosols from compressed gas streams is essential in chemical and energy processes. Conventional separators relying on a single mechanism (inertial or centrifugal) struggle to capture both fine and coarse droplets simultaneously.
Son Ung Kang   +3 more
wiley   +1 more source

Current Algebra and Differential Geometry

open access: yesJournal of High Energy Physics, 2005
14 pages. Dedicated to Ludwig Faddeev on the occasion of his 70th birthday.
Alekseev, Anton, Strobl, Thomas
openaire   +3 more sources

Competitive Equilibria in Semi-Algebraic Economies [PDF]

open access: yes
This paper examines the equilibrium correspondence in Arrow-Debreu exchange economies with semi-algebraic preferences. We show that a generic semi-algebraic exchange economy gives rise to a square system of polynomial equations with finitely many ...
Karl Schmedders, Felix Kuber
core  

SMARANDACHE SPECIAL DEFINITE ALGEBRAIC STRUCTURES [PDF]

open access: yes, 2009
Introducing the notion of Smarandache special definite algebraic structures, also called equivalently as Smarandache definite special algebraic structures.
Vasantha, Kandasamy
core   +1 more source

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