Results 61 to 70 of about 302,863 (304)

Highly efficient pumping configuration for microchip solid-state laser

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
We present a new geometry for edge-pumping of a solid-state microchip laser. This design, which consists of a thin-disk gain crystal that has on top a diffusion bonded undoped material that guides the pump light, allows a good thermal heat management by reducing the thickness of the gain media, whereas the pump optics is kept simple.
T, Dascalu, T, Taira
openaire   +2 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

Numerical investigation of a new LH2 centrifugal pump concept used in space propulsion [PDF]

INCAS Bulletin, 2018
The present study deals with efficiency increase of a centrifugal pump for liquid rocket propulsion by using an innovative concept. With this new pump design the axial length will be reduced by 60% and 20% mass weight towards a classic two stage ...
Ion MALAEL, George Bogdan GHERMAN, Ionut PORUMBEL   +2 more
doaj   +1 more source

Fiber optical parametric amplifier with dispersion flattened photonics crystal fiber as a gain medium [PDF]

, 2011
A fiber optical parametric amplifier utilizing single continuous wave pump is demonstrated. Gain medium used for parametric amplification is a 50 m long dispersion flattened photonics crystal fiber.
Al-Mansoori, Mohammed Hayder, Cholan, Noran Azizan, Ismail, Alyani, Mahdi, Mohd Adzir, Muhammad Noor, Ahmad Shukri   +4 more
core   +1 more source

Fiber optical parametric amplifier with double-pass pump configuration

Optics Express, 2013
Characteristics of fiber optical parametric amplifier (FOPA) with double-pass pump configuration are experimentally investigated. The double-pass pump FOPA exhibits more than two-fold steeper gain slope in comparison to the conventional FOPA due to elongation of effective fiber length.
Yeo, Kwok Shien, Mahamd Adikan, Faisal Rafiq, Mokhtar, Makhfudzah, Hitam, Salasiah, Mahdi, Mohd Adzir   +4 more
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Optimization Design of Industrial Water Supply Pump Station Considering the Influence of Atmospheric Temperature on Operation Cost

IEEE Access, 2020
Pump type selection at a pump station affects not only the hardware investment but also the operating efficiency. The influence of atmospheric temperature on water consumption was not considered in existing studies. This article considers the uncertainty
Mingxing Jia, Jialun Zhang, Yuemei Xu
doaj   +1 more source

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns, Jaclyn S. Long, Sergio Lilla, Kelly Hodge, Marcus J. G. W. Ladds, Colin Nixon, Paula Fernández‐Palanca, Sara Zanivan, Pilar Acedo, Stephen P. Pereira, Kevin M. Ryan   +10 more
wiley   +1 more source

Quantum theory of resonantly enhanced four-wave mixing: mean-field and exact numerical solutions

, 2002
We present a full quantum analysis of resonant forward four-wave mixing based on electromagnetically induced transparency (EIT). In particular, we study the regime of efficient nonlinear conversion with low-intensity fields that has been predicted from a
A.K. Popov, A.O. Melikyan, A.R. Karapetyan, A.R. Karapetyan, A.S. Zibrov, B. Kryzhanovsky, B. Lu, B.S. Ham, E. Arimondo, E.A. Korsunsky, E.A. Korsunsky, G.Z. Zhang, H. Schmidt, H.P. Yuen, J.P. Marangos, K. Hakuta, M. Fleischhauer, M. Jain, M.D. Lukin, M.D. Lukin, M.D. Lukin, M.D. Lukin, M.D. Lukin, M.D. Lukin, Mattias T. Johnsson, Michael Fleischhauer, P.R. Hemmer, S. Babin, S. Babin, S.E. Harris, S.E. Harris, S.E. Harris, S.E. Harris, S.E. Harris, U. Hinze   +34 more
core   +1 more source

Experimental and Numerical Analysis of the Flow Inside a Configuration Including an Axial Pump and a Tubular Exchanger [PDF]

, 2010
In centrifugal and axial pumps, the flow is characterized by a turbulent and complex behavior and also by physical mechanisms such as cavitation and pressure fluctuations that are mainly due to the strong interactions between the fixed and mobile parts ...
BAKIR, Farid, KHELLADI, Sofiane, RAVELET, Florent, SOLIS, Moises   +3 more
core   +5 more sources