Results 81 to 90 of about 1,271,550 (296)

Mechano-chemical Effects of One-dimensional Explosive Shock Treatment on the Characteristics of Si3N4 [Translated]†

open access: yesKONA Powder and Particle Journal, 2014
Direct consolidation of α- and β-Si3N4 is conducted by the use of one-dimensional explosive shock treatment. The effect of shock pressure, phase and particle size distribution of a sample powder on the characteristics of the explosively shocked compact ...
Fumikazu Ikazaki   +6 more
doaj   +1 more source

Directed compact percolation: cluster size and hyperscaling [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1989
Exact recurrence relations are obtained for the length and size distributions of compact directed percolation clusters on the square lattice. The corresponding relation for the moment generating function of the length distribution is obtained in closed form whereas in the case of the size distribution only the first three moments are obtained. The work
openaire   +1 more source

A Nearby Analog of z~2 Compact Quiescent Galaxies with a Rotating Disk

open access: yes, 2012
Recent studies have identified a population of compact quiescent galaxies at z\sim2. These galaxies are very rare today and establishing the existence of a nearby analog could allow us to study its structure in greater detail than is possible at high ...
Bezanson, Rachel   +3 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Simulating the X-ray luminosity of Be X-ray binaries: the case for black holes versus neutron stars

open access: yes, 2018
There are over 100 Be stars that are known to have neutron star companions but only one such system with a black hole. Previous theoretical work suggests this is not due to their formation but due to differences in X-ray luminosity.
Brown, R. O.   +3 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

A Compact Formulation for the $\ell_{2,1}$ Mixed-Norm Minimization Problem

open access: yes, 2016
Parameter estimation from multiple measurement vectors (MMVs) is a fundamental problem in many signal processing applications, e.g., spectral analysis and direction-of- arrival estimation.
Pesavento, Marius   +2 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

A Compact Dual-Band Quasi-Elliptic Filter Employing Meander-Line- and CRLH-Based SIW Triplets

open access: yesElectromagnetic Science
A compact dual-band quasi-elliptic filter with high selectivity is developed and investigated in this communication. It employs two hybrid-structure substrate integrated waveguide (SIW) triplets, which show completely inverse transfer responses under the
Yilong Zhu   +4 more
doaj   +1 more source

Experimental study on effect of scaling on compact density of coarse-grained soils

open access: yesYantu gongcheng xuebao, 2019
There is a certain difference in compact density of rockfill materials between the real gradation and corresponding scaling gradation. In order to describe the difference quantitatively, the scaling effect can be divided into two parts, changes of the ...
WU Er-lu 1, 2, ZHU Jun-gao 1,2, GUO Wan-li 3, CHEN Ge 1, 2
doaj   +1 more source

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