Results 141 to 150 of about 143,159 (315)

Re-evaluation of a geothermal system model based on high-resolution gravity field inversion: A case study of the Maritaing geothermal field, Alor Regency, East Nusa Tenggara Province, Indonesia

Kuwait Journal of Science
The Maritaing region in East Nusa Tenggara Province, Indonesia, offers significant geothermal potential for direct power generation and use. This study aims to re-evaluate the geothermal system model in the Maritaing geothermal field using high ...
Rholland A. Boling, Jehunias L. Tanesib, Hadi I. Sutaji, Laura A.S. Lapono, Richard Lewerissa   +4 more
doaj   +1 more source

The viability of modified gravity theories

, 2009
PhDThis thesis studies the viability of classes of modified gravity (MG) theories based on generalisations of the Einstein-Hilbert action. Particular emphasis is given to f(R) theories in both the metric and Palatini formalisms, scalar-tensor theories ...
Uddin, Kotub
core  

Take a Ride on a Time Machine [PDF]

, 2003
We discuss the possibility to build and operate a time machine, a device that produces closed timelike curves (CTCs). We specify the spacetime structure needed to implement a time machine and assess attempted no-go results against time machines in ...
Wuthrich, Christian, Earman, John, Smeenk, Christopher   +2 more
core  

3D Printed Omniphobic Slippery Liquid Infused Porous Surfaces for Low Surface Tension Repellency

Advanced Materials Technologies, EarlyView.
A 3D printing strategy fabricates omniphobic slippery liquid‐infused porous structures with lubricant reservoirs and interconnected microchannels. A post‐printing surface treatment modifies the porous surface to ensure compatibility with the infused fluorinated lubricant.
Noa Trink, Shlomo Magdassi
wiley   +1 more source

Saturn's Small‐Scale Winds Revealed by Its High‐Degree Gravity Field

Geophysical Research Letters
During its Grand Finale, the Cassini spacecraft collected crucial gravity data, revealing Saturn's low‐degree gravity harmonics and large‐scale zonal winds extending about 8,000 km deep.
S. Kim, M. Parisi, C. R. Mankovich, D. R. Buccino, O. Yang   +4 more
doaj   +1 more source

SLR and GRACE gravity field determination and combination [PDF]

, 2018
At the Astronomical Institute of the Univeristy of Bern (AIUB) long time-series (1995 - 2017) of low resolution (max. degree 6) gravity field coefficients have been determined from a combination of LAGEOS and geodetic SLR satellites in low Earth orbit ...
Thaller, Daniela, Dach, Rolf, König, Daniel, Andritsch, Florian, Meyer, Ulrich, Sosnica, Krzysztof Jakub, Jäggi, Adrian   +6 more
core  

Three-dimensional background field gravity: A Hamilton - Jacobi analysis

, 2015
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)We analyse the constraint structure of the background field model for three-dimensional gravity including a ...
Pimentel, B. M. [UNESP], Valcárcel, C. E., Maia, N. T., Maia, N. T. [UNESP], Pimentel, B. M.   +4 more
core   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

Advanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

Spectral geometry and quantum gravity

, 1998
Recent progress in quantum field theory and quantum gravity relies on mixed boundary conditions involving both normal and tangential derivatives of the quantized field.
ESPOSITO G
core  

Buckling‐Driven Linearity in Flexible Capacitive Pressure Sensors Based on a Three‐Dimensional Dual‐Pore Polyurethane Structure

Advanced Materials Technologies, EarlyView.
A flexible pressure sensor utilizing a 3D dual‐pore polyurethane structure is developed to overcome the intrinsic trade‐off between sensitivity and linearity. By inducing sequential buckling through distinct pore sizes and shapes, the device achieves highly linear and sensitive responses across a wide pressure range.
Jae Yeong Jang, Jaemin Choi, Young Jung
wiley   +1 more source