Results 101 to 110 of about 28,950 (253)

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

First polarised light with the NIKA camera

, 2015
NIKA is a dual-band camera operating with 315 frequency multiplexed LEKIDs cooled at 100 mK. NIKA is designed to observe the sky in intensity and polarisation at 150 and 260 GHz from the IRAM 30-m telescope. It is a test-bench for the final NIKA2 camera.
Adam, R., Adane, A., Ade, P., André, P., Beelen, A., Belier, B., Benoît, A., Bideaud, A., Billot, N., Bourrion, O., Calvo, M., Catalano, A., Coiffard, G., Comis, B., D'Addabbo, A., Doyle, S., Désert, F. -X., Goupy, J., Kramer, C., Leclercq, S., Macías-Pérez, J. F., Martino, J., Maury, A., Mauskopf, P., Mayet, F., Monfardini, A., Pajot, F., Pascale, E., Perotto, L., Pisano, G., Ponthieu, N., Rebolo-Iglesias, M., Ritacco, A., Rodriguez, L., Réveret, V., Savini, G., Schuster, K., Sievers, A., Thum, C., Triqueneaux, S., Tucker, C., Zylka, R.   +41 more
core   +3 more sources

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

High frequency losses in induction motors, part 2 [PDF]

The following subject areas are covered: high frequency losses in induction motors; stray losses in induction motors; and high frequency time harmonic losses in induction ...
Nasar, Syed A., Novotny, Donald W.
core   +1 more source

Improved high power/high frequency inductor [PDF]

, 1990
A toroidal core is mounted on an alignment disc having uniformly distributed circumferential notches or holes therein. Wire is then wound about the toroidal core in a uniform pattern defined by the notches or holes.
Mclyman, W. T.
core   +1 more source

Fast tuning of superconducting microwave cavities

, 2008
Photons are fundamental excitations of the electromagnetic field and can be captured in cavities. For a given cavity with a certain size, the fundamental mode has a fixed frequency {\it f} which gives the photons a specific "color". The cavity also has a
C. M. Wilson, F. Persson, G. Johansson, Hsi-Sheng Goan, M. Sandberg, P. Delsing, T. Bauch, T. Duty, V. Shumeiko, Yueh-Nan Chen   +9 more
core   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Program for stator winding leakage inductance determination by FEA [PDF]

Journal of Electrical and Electronics Engineering, 2009
This paper presents a program designed by the author in order to determine the stator winding parameters. The program is realized in Visual Basic and, in fact, it is for computer aided design of AC machines.
Olivian Chiver, Micu Emil, Liviu Petrean
doaj  

Evaluation of half wave induction motor drive for use in passenger vehicles [PDF]

Research performed at the University of Missouri-Columbia to devise and design a lower cost inverter induction motor drive for electrical propulsion of passenger vehicles is described. A two phase inverter motor system is recommended.
Erickson, C. L., Goodarzi, A., Hoft, R. G., Kawamura, A., Yang, G. Q.   +4 more
core   +1 more source

An analysis of the benefits of signal injection for low-speed sensorless control of induction motors

, 2015
We analyze why low-speed sensorless control of the IM is intrinsically difficult, and what is gained by signal injection. The explanation relies on the control-theoretic concept of observability applied to a general model of the saturated IM.
Combes, Pascal, Malrait, François, Martin, Philippe, Rouchon, Pierre   +3 more
core   +3 more sources