Results 31 to 40 of about 168,320 (268)

Acoustic-Vibration Characteristics of Heavy Electric Locomotive Cab

open access: yes机车电传动, 2013
Based on the detailed structural finite element model of a heavy electric locomotive cab, the natural frequency of cab structure was calculated and analyzed.
LIU Xiao-bo, LIU Jian
doaj  

Low Mach Number Fluctuating Hydrodynamics for Electrolytes

open access: yes, 2016
We formulate and study computationally the low Mach number fluctuating hydrodynamic equations for electrolyte solutions. We are interested in studying transport in mixtures of charged species at the mesoscale, down to scales below the Debye length, where
Bell, John B.   +5 more
core   +1 more source

A Preposterous Universe [PDF]

open access: yes, 2003
Recent announcements that the Cosmic Microwave Background (CMB) - the faint remnant of the Big Bang - is polarized have caused a stir among cosmologists.
Gangui, Alejandro
core   +2 more sources

PENENTUAN RESISTIVITAS BATUBARA MENGGUNAKAN METODE ELECTRICAL RESISTIVITY TOMOGRAPHY DAN VERTICAL ELECTRICAL SOUNDING

open access: yesJurnal Material dan Energi Indonesia, 2016
Pemanfaatan batubara sebagai salah satu sumber energi alternatif semakin meningkat, diantaranya untuk kebutuhan energi sektor industri dan pembangkit tenaga listrik. Peningkatan tersebut telah mendorong penelitian mengenai keberadaan batubara dan sumberdayanya.
BUDY SANTOSO   +3 more
openaire   +1 more source

Sub-Surface Investigation Using Vertical Electrical Sounding: Chennai Metropolitan Area

open access: yesCurrent World Environment, 2018
The data or information on the sub-stratum, nature of aquifers, their spatial disposition, their hydrogeological characteristics and other information, are limited particularly in urban context. The study was performed in the Chennai metropolitan area. The objective of the study was to get the sub-surface information of the study area.
J. SARAVANAN   +2 more
openaire   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

Procesamiento digital de datos geoeléctricos mediante la aplicación de la regresión anidada en la parroquia Coquivacoa del municipio Maracaibo, estado Zulia Digital processing of geoelectrics data using the ridge regression in the parroquia Coquivacoa of the municipio Maracaibo, estate of Zulia

open access: yesRevista Técnica de la Facultad de Ingeniería, 2003
El presente Trabajo de Investigación, tiene como objetivo principal aplicar un análisis estadístico de datos geoeléctricos, basado en el método de Regresión Anidada, durante la fase de procesamiento en Sondeos Eléctricos Verticales.
Wilmer Márquez   +3 more
doaj  

Ultrasonic bone densitometer [PDF]

open access: yes, 1974
A device, for measuring the density of a bone structure so as to monitor the calcium content, is described. A pair of opposed spaced ultrasonic transducers are held within a clamping apparatus closely adjacent the bone being analyzed.
Hoop, J. M.
core   +1 more source

Optomechanical signature of a frictionless flow of superfluid light

open access: yes, 2015
We propose an experimental setup that should make it possible to reveal the frictionless flow of a superfluid of light from the suppression of the drag force that it exerts onto a material obstacle.
Carusotto, I., Larré, P. -É.
core   +1 more source

Analytic Model for Advection-Dominated Accretion Flows in a Global Magnetic Field [PDF]

open access: yes, 1999
A model for advection-dominated accretion flows (ADAFs) in a global magnetic field is proposed. In contrast to the well known ADAF models in which the viscosity of a fluid determines both angular momentum transfer and energy dissipation in the flow, the ...
Bisnovati-Kogan G. S.   +8 more
core   +3 more sources

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