Results 31 to 40 of about 114,935 (289)

Dynamic Nuclear Polarization in Silicon Microparticles [PDF]

, 2008
We report record high Si-29 spin polarization obtained using dynamic nuclear polarization in microcrystalline silicon powder. Unpaired electrons in this silicon powder are due to dangling bonds in the amorphous region of this intrinsically heterogeneous ...
A. Abragam, A. Abragam, A. Abragam, A. E. Dementyev, C. Ramanathan, D. G. Cory, N. T. Bagraev   +6 more
core   +1 more source

FASTER PLASTICIZERS PRODUCTION BY MICROWAVE IRRADIATION

Proceedings 17th International Conference on Microwave and High Frequency Heating, 2019
Plasticizers are esters used to confer plasticity to polymer goods. They are prepared by esterification between a carboxylic acid or anhydride and a heavy alcohol. Esterification is a very slow reaction and its batches may last more than 12 hours of processing [1].
Luiz Alberto Jermolovicius, Eduardo V. S. Pouzada, Edmilson R. Castro, Renata B. Nascimento, José T. Senise   +4 more
openaire   +3 more sources

Effects of ultraviolet-C and microwave irradiation on the expression of heat shock protein genes in the maize weevil (Coleoptera: Curculionidae)

European Journal of Entomology, 2016
The maize weevil, Sitophilus zeamais (Motschulsky), is a major pest of stored grain kernels. Irradiation is an established technique for controlling insects in stored grain and is a major stress factor affecting these insects.
Jatuporn TUNGJITWITAYAKUL, Nujira TATUN, Boongeua VAJARASATHIRA, Sho SAKURAI   +3 more
doaj   +1 more source

High order fractional microwave induced resistance oscillations in 2D systems

, 2009
We report on the observation of microwave-induced resistance oscillations associated with the fractional ratio n/m of the microwave irradiation frequency to the cyclotron frequency for m up to 8 in a two-dimensional electron system with high electron ...
A. K. Bakarov, G. M. Gusev, J. C. Portal, O. E. Raichev, S. Wiedmann, V. I. Ryzhii, V. I. Ryzhii, V. I. Ryzhii, V. I. Ryzhii   +8 more
core   +1 more source

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

Advanced 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, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Long-range and selective coupler for superconducting flux qubits

, 2007
We propose a qubit-qubit coupling scheme for superconducting flux quantum bits (qubits), where a quantized Josephson junction resonator and microwave irradiation are utilized.
Kakuyanagi, K., Nakano, H., Semba, K., Ueda, M.   +3 more
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Peak effect and its evolution with defect structure in YBa2Cu3O7-d thin films at microwave frequencies [PDF]

, 2001
The vortex dynamics in YBa2Cu3O7-d thin films have been studied at microwave frequencies. A pronounced peak in the surface resistance, Rs, is observed in these films at frequencies of 4.88 and 9.55 GHz for magnetic fields varying from 0.2 to 0.8 T.
A. Soibel, A.B. Pippard, A.I. Larkin, A.I. Larkin, A.R. Bhangale, C.J. van der Beek, D. Kanjilal, D. Kanjilal, D. Pal, D.A. Huse, D.R. Nelson, E.H. Brandt, G. Blatter, H. Kupfer, J.I. Gittleman, L. Civale, L. Krusin-Elbaum, M. Golosovsky, M. Golosovsky, M. Konczykowski, M.R. Koblischka, M.W. Coffey, M.W. Coffey, R. Marcon, R. Pinto, R. Pinto, R. Pinto, S. Bhattacharya, S. Bhattacharya, S. Bhattacharya, S. Revenaz, T. Ishida, T. Matsuda, Tamalika Banerjee, Th. Wolf, W. Henderson, W.K. Kwok, W.K. Kwok   +37 more
core   +3 more sources

Interaction of MgO Recyclate‐Based Cermet Anode With KF‐AlF3‐Al2O3 at 800°C During Laboratory Scale Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain, Alexander Adamczyk, Felipe Alejandro Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Energy storage and fracture characteristics of brittle rock with rockburst proneness after microwave irradiation

Case Studies in Thermal Engineering
Microwave irradiation has been considered a promising solution for high-temperature cracking rock. Most of the current researches are concentrated on investigating the effects of microwave irradiation on the physical and mechanical properties of rock ...
Jiawang Hao, Haoran Li, Weigang Zhao, Lan Qiao, Huarui Hu   +4 more
doaj   +1 more source