Báo cáo hóa học: " Quantum Dot Infrared Photodetectors: Photoresponse Enhancement Due to Potential Barriers" ppt

... article as: Mitin et al.: Quantum Dot Infrared Photodetectors: Photoresponse Enhancement Due to Potential Barriers. Nanoscale Res Lett 2011 6:21. Submit your manuscript to a journal and benefi ... enhancement of the photoresponse due to potential barriers around dots. Our results show that QDIPs can substantially out- perform quantum- well photodetectors due...

Ngày tải lên: 21/06/2014, 08:20

... patient to the ICU should not be restricted to short-term management of an acute disease but rather to allow her to recover from acute illness with a satisfac- tory quality of life. To describe ... visiting the emergency department ICE-CUB1 study Emergency triage ICU triage Too well Too sick Too well Too sick Admitted to the ICU Patients, N 1339 642 155 170 316 Hospital mortality...

Ngày tải lên: 21/06/2014, 01:20

... Electrical Engineering, Dzordza Vasingtona bb, 20000 Podgorica, Montenegro 2 Department of Electrical and Computer Engineer ing, Ryerson University, Toronto, ON, Canada 3 Center for Advanced Communications, ... when applied to multimedia signals. The goal is to facilitate the choice of an appropriate distribution in a specific multimedia application. The second part of this paper is dedica...

Ngày tải lên: 21/06/2014, 05:20

... al l these procedures have to be integrated into a gen- eral encoding/decoding structure. Also a common modula- tor/demodulator structure has to be specified. Solutions to these tasks are given, ... have to be implemented; (iv) when complying with a communications etiquette, it has to listen before talk as well as to prevent the disturbance of hidden stations; (v) in order to be...

Ngày tải lên: 23/06/2014, 00:20

... Machida T: Oscillatory changes in the tunneling magnetoresistance effect in semiconductor quantum- dot spin valves. Phys Rev B 2008, 77:081302(R). 7. Stefański P: Tunneling magnetoresistance anomalies ... a quantum dot coupled to ferromagnetic leads and side-coupled to a nonmagnetic reservoir. Phys Rev B 2010, 81:035331. 14. König J, Martinek J: Interaction-Driven Spin Precession i...

Ngày tải lên: 21/06/2014, 04:20

... decrease in exciton–biexciton splitting with increasing QD size. Introduction Semiconductor quantum dots (QDs) are very attractive for advanced applications for instance in the field of quantum computing ... single photon sources [2, 3] for quantum cryptography. In this context, the detailed knowledge of the symmetries and level-structure inside these artificial atoms and its correlation...

Ngày tải lên: 21/06/2014, 17:20

... from the central load-bearing region of the humeral head. To mon- itor the influence of topographical variations, special attention was paid to the cartilage's location and orienta- tion on ... spectral range 1700 to 1600 cm -1 and 1600 to 1500 cm -1 respectively, from all infrared images. In the case of tendon, eight by eight pixels in the chemi-maps were aver- aged to ana...

Ngày tải lên: 20/06/2014, 01:20

... exact self-energies due to the leads can be calculated in the NEGF-Dirac model. We apply our approach to GNR systems of different widths subjecting to different potential profiles to characterize their ... Nanoscale Res Lett 2011, 6:62. 14. Datta S: Quantum Transport: Atom to Transistor, chap. 9, pp. 217–251. New York: Cam- bridge University Press; 2005. 15. Neto AHC, Guinea F, P...

Ngày tải lên: 21/06/2014, 17:20

... between quantum dots and fluorescently tagged proteins [53]. Solid state applications of quantum dots The optoelectronic properties (broad absorption spectrum and narrow emission profile) of quantum dots ... devices from quantum dots is creating electrical contacts to elec- trodes that allow charge transport while at the same time preventing quantum dot aggregation. Early photovol...

Ngày tải lên: 22/06/2014, 18:20

... The potential therapeutic effects of ginseng have been attributed to its immunostimulatory, anti-oxidant and anti-inflammatory activities. In this study, we used human promonocytic U937 cells to ... ginseng or ginseng extract have been shown to have anti-inflammatory effects such as suppressing the expression of proinflammatory cytokines or mediators. For instance, ginsan, a polysacch...

Ngày tải lên: 18/06/2014, 15:20