Results 61 to 70 of about 473,344 (299)

Single-stage Charge-pump Voltage-source Electronic Ballast For A 70 W Hps Lamp

Eletrônica de Potência, 2007
In this paper a single-stage charge-pump voltage-source electronic ballast for a 70 W High Pressure Sodium [HPS] lamp is proposed. Although charge-pump ballasts have already been studied in fluorescent lamp applications, for HPS lamps this topology ...
José Flávio Dums, Claudinor Bitencourt Nascimento, Arnaldo José Perin   +2 more
doaj   +1 more source

Numerical Study of Photo-Induced Dynamics in Double-Exchange Model

, 2010
Photo-induced spin and charge dynamics in double-exchange model are numerically studied. The Lanczos method and the density-matrix renormalization-group method are applied to one-dimensional finite-size clusters. By photon irradiation in a charge ordered
H. Matsueda, K. Nasu, S. Ishihara, Y. Kanamori   +3 more
core   +1 more source

Coherent amplitudon generation in K_0.3MoO_3 through ultrafast inter-band quasi particle decay [PDF]

, 2006
The charge density wave system K_0.3MoO_3 has been studied using variable energy pump-probe spectroscopy, ellipsometry, and inelastic light scattering.
Artem A Tsvetkov, Biljakovic K, Daniele Fausti, Dodderi M Sagar, Grüner G, Paul H M van Loosdrecht, Peierls R E, Pouget J P, Sander van Smaalen, Schlenker C, Sing M, Sirbu S, Travaglini G, Tsvetkov A A, van Loosdrecht P H M   +14 more
core   +4 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Pumping in an interacting quantum wire

, 2003
We study charge and spin pumping in an interacting one-dimensional wire. We show that a spatially periodic potential modulated in space and time acts as a quantum pump inducing a dc-current component at zero bias.
A. Rosch, B. Altshuler, B. Wang, C. Chamon, C. Kane, D. Thouless, F. Mireles, F. Zhou, F.D.M. Haldane, H. Schulz, I. Aleiner, J. Avron, J. Shilton, J. Sólyom, J. Wang, L. Keldysh, M. Moskalets, M. Polianski, M. Polianski, M. Switkes, N. Andrei, O. Entin-Wohlman, P. Brouwer, P. Sharma, Q. Niu, Q. Niu, Q. Niu, R. Citro, S. Datta, T. Giamarchi, T. Shutenko, V. Meden, V. Talyanskii, Y. Levinson, Y. Wei   +34 more
core   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Time-Dependent Charge-Order and Spin-Order Recovery in Striped Systems

, 2013
Using time-dependent Ginzburg-Landau theory, we study the role of amplitude and phase fluctuations in the recovery of charge and spin stripe phases in response to a pump pulse that melts the orders.
Chen, C. -C., Devereaux, T. P., Kemper, A. F., Kung, Y. F., Lee, W. -S., Moritz, B., Sorini, A. P.   +6 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

DESAIN SISTEM POMPA AIR SOLAR PHOTOVOLTAIC (SPV) 125 WATT DI DESA RAMBAT, KECAMATAN GEYER, KABUPATEN GROBOGAN

Elektrika, 2018
In this research will be designing a prototype of a water pump system using solar photovoltaic (SPV) that is designing a SPV in accordance with the needs of PV with the capacity of water pump.
Harmini Harmini, Titik Nurhayati
doaj   +1 more source

Ultrafast Charge Dynamics in Bulk Zinc Oxide under Intense Photoexcitation

Photonics, 2023
The photo-induced charge dynamics of textbook wide-bandgap semiconductor ZnO have been investigated on the picosecond time-scale. We performed optical Pump-THz Probe experiments in order to measure the dielectric constant of the material after high ...
Andrea Rubano, Domenico Paparo
doaj   +1 more source