Results 71 to 80 of about 312,905 (302)

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

High Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng, Jiangang Bi, Jiangang Bi, Wenzhi Chang, Yuan Xu, Xiaohua Pan, Xianwei Ma, Shuai Chang   +7 more
doaj   +1 more source

Crowding of Polymer Coils and Demixing in Nanoparticle-Polymer Mixtures

, 2011
The Asakura-Oosawa-Vrij (AOV) model of colloid-polymer mixtures idealizes nonadsorbing polymers as effective spheres that are fixed in size and impenetrable to hard particles. Real polymer coils, however, are intrinsically polydisperse in size (radius of
Alan R Denton, Allen M P, Asakura S, Ben Lu, de Gennes P G, De Virgilis A, Denton A R, Fasolo M, Flory P J, Frenkel D, Hansen J-P, Lekkerkerker H N W, Moncho-Jordá A, Panagiotopoulos A Z, Panagiotopoulos A Z, Panagiotopoulos A Z, Poon W C K, Pusey P N, Schmidt M, Vink R L C, Yamakawa H, Zausch J   +21 more
core   +1 more source

Simulated design strategies for SPECT collimators to reduce the eddy currents induced by MRI gradient fields [PDF]

, 2015
Combining single photon emission computed tomography (SPECT) with magnetic resonance imaging (MRI) requires the insertion of highly conductive SPECT collimators inside the MRI scanner, resulting in an induced eddy current disturbing the combined system ...
Joseph, Wout, Martens, Luc, Samoudi, Mohammed, Van Audenhaege, Karen, Van Holen, Roel, Verhoyen, Gregory, Vermeeren, Günter   +6 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Multilayer air gap winding designs for electric machines: theory, design, and characterisation

The Journal of Engineering, 2019
Here, the authors present a magnetic circuit design with a multilayer air gap winding. This design provides a new degree of freedom in the design process.
Norman Borchardt, Roland Kasper, Jörg Sauerhering, Wolfgang Heinemann, Kimberly L. Foster   +4 more
doaj   +1 more source

Transport critical current of Solenoidal MgB2/Cu Coils Fabricated Using a Wind-Reaction In-situ Technique

, 2002
In this letter, we report the results of transport Jc of solenoid coils upto 100 turns fabricated with Cu-sheathed MgB2 wires using a wind-reaction in-situ technique.
Glowacki B A, Goldacher W, J Horvat, M Tomsic, S Soltanian, S X Dou, Tenbrink J, X L Wang   +7 more
core   +1 more source

On-Surface Assembly of Coiled-Coil Heterodimers [PDF]

Langmuir, 2012
The coiled coil is a widespread protein motif responsible for directing the assembly of a wide range of protein complexes. To date, research has focused largely on the solution phase assembly of coiled-coil complexes. Here, we describe an investigation into coiled-coil heterodimer assembly where one of the peptides is immobilized directly onto a gold ...
Simon J, White, D William A, Morton, Boon Chong, Cheah, Agnieszka, Bronowska, A Giles, Davies, Peter G, Stockley, Christoph, Wälti, Steven, Johnson   +7 more
openaire   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Wireless Metal Detection and Surface Coverage Sensing for All-Surface Induction Heating

Sensors, 2016
All-surface induction heating systems, typically comprising small-area coils, face a major challenge in detecting the presence of a metallic vessel and identifying its partial surface coverage over the coils to determine which of the coils to power up ...
Veli Tayfun Kilic, Emre Unal, Hilmi Volkan Demir   +2 more
doaj   +1 more source

Measurement of penetration depths in superconducting films [PDF]

, 1995
A closed expression is obtained for the mutual inductance of any arrangement of stacked circular coils between which a thin film of superconducting material is ...
Rowlands, G. (George)
core   +1 more source