Results 71 to 80 of about 33,952 (298)

A Critical Cosmological Constant from Millimeter Extra Dimensions

open access: yes, 2000
We consider `brane universe' scenarios with standard-model fields localized on a 3-brane in 6 spacetime dimensions. We show that if the spacetime is rotationally symmetric about the brane, local quantities in the bulk are insensitive to the couplings on ...
Chen, Jiunn-Wei   +2 more
core   +2 more sources

Brane world in a texture [PDF]

open access: yes, 2002
We study five dimensional brane physics induced by an O(2) texture formed in one extra dimension. The model contains two 3-branes of nonzero tension, and the extra dimension is compact.
A. Cohen   +27 more
core   +4 more sources

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

open access: yesAdvanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin   +2 more
wiley   +1 more source

A 6-D Brane World Model [PDF]

open access: yes, 2001
We consider a 6D space-time which is periodic in one of the extra dimensions and compact in the other. The periodic direction is defined by two 4-brane boundaries.
Kanti, Panagiota   +2 more
core   +2 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

The calculation of warping spools of warp-knitting machines

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
The paper is devoted to the development of scientific bases of the knitting machine design, in particular, to the calculation of warping spools of warp-knitting machines.
Vitaliy V. Chaban, Boris F. Pipa
doaj   +1 more source

General Properties of the Self-tuning Domain Wall Approach to the Cosmological Constant Problem

open access: yes, 2000
We study the dynamics of brane worlds coupled to a scalar field and gravity, and find that self-tuning of the cosmological constant is generic in theories with at most two branes or a single brane with orbifold boundary conditions.
Alwis   +39 more
core   +1 more source

Brane Worlds, the Cosmological Constant and String Theory [PDF]

open access: yes, 2001
We argue that traditional methods of compactification of string theory make it very difficult to understand how the cosmological constant becomes zero. String inspired models can give zero cosmological constant after fine tuning but since string theory ...
de Alwis, S. P.   +2 more
core   +2 more sources

The study of Warp Tension in Weaving Machine

open access: yesJournal of the Textile Machinary Society, 1951
研究目的織機の経糸張力が毎製織サイクル中に如何な変化を受けるかを検討し、経糸切断の因子を除去して品質を向上させることを目的とする。研究結果豊田自動織機のバツクローラの動きを拡大して回転円筒上に記録せしめ、その時の織機側の條件を色々に変化させた。その結果1.経糸の張力変化曲線に与える送り出しの影響は小さい。2. 同様捲取の影響は小さい。3.テンシヨンローラの作用は極めて有効である。4.バックローラ周りの慣性モーメントは可なり大きい。5.セクターブレーキめ効きはよい。なお送出し機構に関して検討を加え必要條件を挙げた。
Minoru Uno, Yoshito Miura
openaire   +2 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

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