Results 91 to 100 of about 28,712 (296)

Involute Partner-Ruled Surfaces Formed by Involutes of Spacelike Curves in Minkowski Three-Space

open access: yesAxioms
We introduced the concept of involute partner-ruled surfaces, which are formed by the involutes of spacelike curves and additional conditions ensuring the presence of definite surface normals in Minkowski three-space.
Özgür Boyacıoğlu Kalkan   +3 more
doaj   +1 more source

Superconformal ruled surfaces in E4

open access: yes, 2009
In the present study we consider ruled surfaces imbedded in a Euclidean space of four dimensions. We also give some special examples of ruled surfaces in E-4.
Öztürk, Günay   +1 more
core  

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

Ruled Surfaces with Bishop vectors via Smarandache geometry

open access: yesMANAS: Journal of Engineering
The paper studies new ruled surfaces with the vectors of Bishop frame via Smarandache geometry. The fundamental forms and the corresponding curvatures are provided for each ruled surface to draw characteristics of the surfaces such as developability and ...
Kebire Hilal Ayvacı Şimşek   +2 more
doaj   +1 more source

On projections of ruled and veronese surfaces

open access: yesJournal of Algebra, 1989
A closed subscheme \(X\subset {\mathbb{P}}^ n\) is said to be of maximal rank if for every \(h\geq 1\) the restriction homomorphism \(H^ 0({\mathcal O}_{{\mathbb{P}}^ n}(h))\to H^ 0({\mathcal O}_ X(h))\) is injective or surjective. In many previous papers the authors gave contributions to answer the following question (Hartshorne projection conjecture).
Ballico, E, Ellia, Ph
openaire   +1 more source

Osculating ruled surfaces

open access: yes, 2019
Bu tez beş bölümden oluşmaktadır. Birinci bölümde konu ile ilgili yapılan çalışmalar hakkında bilgi verilmektedir. İkinci bölümde tez boyunca kullanılan eğri, yüzey ve çatılarla ilgili temel kavramlar verilmektedir.
Çolak, Elif
core  

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Blaschke frames and the motion of timelike ruled surfaces in Minkowski 3-space

open access: yesAIP Advances
This study explores the geometry of timelike ruled surfaces and their associated Blaschke frames in Minkowski 3-space. It establishes a mapping from spacelike differentiable curves to timelike ruled surfaces and derives the corresponding differential ...
Awatif Al-Jedani, Rashad A. Abdel-Baky
doaj   +1 more source

Ruled Surfaces and Their Geometric Invariants via the Orthogonal Modified Frame in Minkowski 3-Space

open access: yesMathematics
Ruled surfaces in Minkowski 3-space play a crucial role in differential geometry and have significant applications in physics and engineering. This study explores the fundamental properties of ruled surfaces via orthogonal modified frame in Minkowski ...
Emad Solouma   +2 more
doaj   +1 more source

Classification of Some Special Types Ruled Surfaces in Simply Isotropic 3-Space

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2017
In this paper, we classify two types ruled surfaces in the three dimensional simply isotropic space I13 under the condition ∆xi= λixi where ∆ is the Laplace operator with respect to the first fundamental form and λ is a real number. We also give explicit
Karacan Murat Kemal   +2 more
doaj   +1 more source

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