Results 41 to 50 of about 16,981 (259)

Hydrogeophysical mapping with the transient electromagnetic sounding method

3rd EEGS Meeting, 1997
The transient electromagnetic sounding method is an effective reconnaissance exploration tool for mapping good conductors like day and salt water. In the Bredebro area in Southem Jutland, Denrnark, the method has been used for mapping an aquifer situated in a Tertiary valley system eroded out in heavy day.
L. H. Poulsen, N. B. Christensen
openaire   +2 more sources

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho, Min‐Hsuan Chang, Yi‐Syun Chen, Tetsuro Kusamoto, Emrys W. Evans, Yuh‐Renn Wu, Richard H. Friend   +6 more
wiley   +1 more source

Study of Influential Parameters for Transient Electromagnetic Method [PDF]

2010 Asia-Pacific Power and Energy Engineering Conference, 2010
Series of models are designed to test the influences of some parameters such as resistivity of overburden layer, basement and transmitter-receiver layouts, to a given 3D conductive anomaly in the layered earth model by transient electromagnetic (TEM) method, which is often used in engineering exploration.
Tang, Xingong, Hu, Wenbao, Yan, Liangjun
openaire   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

Advanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio, Giuseppe Nicoletta, Roberto Caputo, Antonio Ferraro   +3 more
wiley   +1 more source

Magnetoactive Hydrogels to Probe Curvature‐Directed Endothelial Cell Mechanosensing

Advanced Healthcare Materials, EarlyView.
This work establishes a platform to investigate local curvature as a regulator of endothelial mechanosensing independent of shear stress. Magnetoactive hydrogels enable on‐demand curvature of endothelial monolayers to reproduce tortuosity quantified by clinically established metrics.
Avinava Roy, Grace K. Hinds, Joshua Yu‐Chung Liu, Ziqian Yang, Rishab Yanala, Arina E. Velieva, Claudia Loebel   +6 more
wiley   +1 more source

Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials

Advanced Materials, EarlyView.
Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley   +1 more source

The pulled array transient electromagnetic method

3rd EEGS Meeting, 1997
The mapping of subsurface resistivity structures using transient electromagnetic soundings, TEM, has gained an important role in hydrogeological investigations in Denmark. Regional mapping with TEM have produced resuits, which leaves no doubt as to the ability of the method to delineate freshwater sandy aquifers in well conducting hosts of Tertiary ...
openaire   +2 more sources

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Transient electromagnetic detection method in water-sealed underground storage caverns

Underground Space, 2016
Taking advantage of the water sensitivity of the transient electromagnetic method (TEM), this study assesses the effectiveness of the water curtain system for underground LPG storage caverns during the excavation period.
Fang Lin, Shougen Chen, Guowei Ma
doaj   +1 more source

Transient Electromagnetic 1-Dimensional Inversion Based on the Quantum Particle Swarms Optimization-Smooth Constrained Least Squares Joint Algorithm and Its Application in Karst Exploration

Advances in Civil Engineering, 2022
Before the construction of the bridge bored pile in the karst area, geological conditions of the excavation area should be investigated. In order to avoid the karst caves in underground space making adverse impacts on the construction, bearing capacity ...
Xue Liu, Chunwei Pan, Fangkun Zheng, Ying Sun, Qingsong Gou   +4 more
doaj   +1 more source