نتایج جستجو برای: 795

تعداد نتایج: 1444  

Journal: :Physical review letters 2010
Y O Dudin A G Radnaev R Zhao J Z Blumoff T A B Kennedy A Kuzmich

Entanglement of a 795 nm light polarization qubit and an atomic Rb spin-wave qubit for a storage time of 0.1 s is observed by measuring the violation of Bell's inequality (S=2.65±0.12). Long qubit storage times are achieved by pinning the spin wave in a 1064 nm wavelength optical lattice, with a magic-valued magnetic field superposed to eliminate lattice-induced dephasing. Four-wave mixing in a...

2005
Bo Wang Shujing Li Haibin Wu Hong Chang Hai Wang Min Xiao

We report an experiment in which optical pulses stored in an atomic system can be controllably released into two different photonic channels. By controllably turning on the retrieve control pulses at either 795 or 780 nm to read the stored optical pulses in a four-level double -type atomic medium, we can obtain the released probe pulse at 795 or 780 nm, respectively. These readout pulses can be...

Journal: :Journal of the American Chemical Society 2013
Xiaoji Xie Nengyue Gao Renren Deng Qiang Sun Qing-Hua Xu Xiaogang Liu

A new type of core-shell upconversion nanoparticles which can be effectively excited at 795 nm has been designed and synthesized through spatially confined doping of neodymium (Nd(3+)) ions. The use of Nd(3+) ions as sensitizers facilitates the energy transfer and photon upconversion of a series of lanthanide activators (Er(3+), Tm(3+), and Ho(3+)) at a biocompatible excitation wavelength (795 ...

Journal: :IEEE Photonics Journal 2023

795 nm oxide-confined distributed feedback (DFB) lasers have been developed. The structure is used to realize lateral optical and current confinement, the first order surface gratings offer frequency selectivity for single longitudinal mode operation. fabricated 200-um-long devices exhibited a low-threshold of ∼4.8 mA, 3-dB modulation bandwidth ∼5.8 GHz maintained stable operation around with s...

2016
Sahdeo Prasad Subash C. Gupta Manoj K. Pandey Amit K. Tyagi Lokesh Deb

1University of Texas MD Anderson Cancer Center, 1901 East Road, Houston, TX 77054, USA 2Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221 005, India 3Penn State Milton S. Hershey Medical Center, 1214 Research Boulevard, Hummelstown, PA 17036, USA 4Institute of Bioresources and Sustainable Development (IBSD), Takyelpat Institutional Area, Imp...

Journal: :British Journal of Surgery 2023

Abstract Aim To investigate the predictors and timing of recurrence after curative resection for pancreatic adenocarcinoma (PDAC). Method Consecutive patients who underwent PDAC (2011-21) consented to data tissue collection, were followed up prospectively in a single institution. Clinico-pathological variables analysed using Cox proportional hazards model. Results 91 (median age 71 years (range...

Journal: :Journal of Heart and Lung Transplantation 2023

PurposeWith the obesity epidemic and its consequences, prevalence of end-stage heart failure in this population continues to rise. Advancements left ventricular assist devices (LVAD) technology, such as HeartMate III (HM3), have allowed become feasible alternatives transplantation destination therapy (DT). Patients previously excluded from transplantation, may now benefit technology spite their...

2013
Stephanie Preuss Wolfgang Stein

One of the key approaches for studying neural network function is the simultaneous measurement of the activity of many neurons. Voltage-sensitive dyes (VSDs) simultaneously report the membrane potential of multiple neurons, but often have pharmacological and phototoxic effects on neuronal cells. Yet, to study the homeostatic processes that regulate neural network function long-term recordings o...

Journal: :Plant & cell physiology 2015
Kazuhiko Nishitani Taku Demura

Apoplastic Intelligent System Kazuhiko Nishitani* and Taku Demura Laboratory of Plant Cell Wall Biology, Graduate School of Life Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 890-8578 Japan Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan *Corresponding author: E-mail, [email protected]; F...

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