نتایج جستجو برای: carrier properties

تعداد نتایج: 933214  

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2012
Stavros Thomopoulos H Mike Kim Matthew J Silva Eleni Ntouvali Cionne N Manning Ryan Potter Howard Seeherman Richard H Gelberman

Tendon-to-bone healing is typically poor, with a high rate of repair-site rupture. Bone loss after tendon-to-bone repair may contribute to poor outcomes. Therefore, we hypothesized that the local application of the osteogenic growth factor bone morphogenetic protein 2 (BMP-2) would promote bone formation, leading to improved repair-site mechanical properties. Intrasynovial canine flexor tendons...

Journal: :iranian journal of pathology 2012
indranil chakrabarti swapan kumar sinha nilanjana ghosh bidyut krishna goswami

background and objectives: beta-thalassemia continues to be a cause of significant burden to the society particularly in the poorer developing countries. although sophisticated methods of screening have become available, a hunt for a cheap, rapid, objective screening method still remains elusive. thus, the objectives are to study the validity of naked-eye-single-tube-osmotic-fragility-test (nes...

2010
Gavin Conibeer Martin Green Jean-François Guillemoles Antonio Marti

The UNSW node of the Hot Carrier Solar Cell project is investigating absorbers which slow the rate of carrier cooling an essential element of a successful cell. This work includes modelling the limiting efficiencies of cells using real material properties and modelling the phonon dispersions of ordered arrays of quantum dots. The object of the latter is to determine the potential to modify the ...

2015
Michael B. Price Justinas Butkus Tom C. Jellicoe Aditya Sadhanala Anouk Briane Jonathan E. Halpert Katharina Broch Justin M. Hodgkiss Richard H. Friend Felix Deschler

Metal-halide perovskites are at the frontier of optoelectronic research due to solution processability and excellent semiconductor properties. Here we use transient absorption spectroscopy to study hot-carrier distributions in CH3NH3PbI3 and quantify key semiconductor parameters. Above bandgap, non-resonant excitation creates quasi-thermalized carrier distributions within 100 fs. During carrier...

Mandana Pirahan- Foroush , Roya Ahmadi,

  Purpose: To evaluate the effect of fullerene on chemical properties of naphazoline drug in   water by density functional theory (DFT) methods.   Materials and Methods: Naphazoline belongs to the imidazoline class of sympathomimetics.   The present study on naphazoline drug and its fullerene connected form were carried out using   computerized calculations of Gaussian program in b3lyp/6-31g le...

2016
Mesbahus Saleheen Salman M. Arnab

Abstract: A physics-based explicit mathematical model for the external voltage-dependent forward dark current in bulk heterojunction (BHJ) organic solar cells is developed by considering Shockley-Read-Hall (SRH) recombination and solving the continuity equations for both electrons and holes. An analytical model for the external voltage-dependent photocurrent in BHJ organic solar cells is also p...

2011
Gavin Conibeer Martin Green Jean-François Guillemoles Antonio Marti

The UNSW node of the Hot Carrier Solar Cell project is investigating absorbers which slow the rate of carrier cooling an essential element of a successful cell. It has also further developed the work on energy selective contacts for Hot Carrier cells. This work includes modelling the limiting efficiencies of cells using real material properties and modelling the phonon dispersions of ordered ar...

Journal: :international journal of optics and photonics 0
zahra danesh kaftroudi department of engineering sciences, faculty of technology and engineering east of guilan, university of guilan, 44891-63157, rudsar-vajargah, iran esfandiar rajaei department of physics, university of guilan, 41335-1914, rasht, iran

in this study, we have theoretically investigated the effect of electron stopper layer on internal temperature distribution of high performance vertical cavity surface-emitting laser emitting at 1305 nm.  simulation software pics3d, which self-consistently combines the 3d simulation of carrier transport, self-heating, gain computation and wave-guiding, was used. simulation results show that cha...

2013
Mohamed K. Nezami

Wireless receivers process signals that bear information as well as disturbances caused by the transmitter/receiver circuits and channel impairments such as fad:ing, interference, and additive white gaussian noise (AWGN). Usually, the receiver knows only some statistical properties of the signal and disturbances. From these statistical properties and using a finite observation of the received s...

Journal: :Optics express 2012
Ali R Motamedi Amir H Nejadmalayeri Anatol Khilo Franz X Kärtner Erich P Ippen

Results of a self-consistent ultrafast study of nonlinear optical properties of silicon nanowaveguides using heterodyne pump-probe technique are reported. The two-photon absorption coefficient and free-carrier absorption effective cross-section were determined to be 0.68cm/GW, and 1.9x10(-17) cm2, respectively and the Kerr coefficient and free-carrier-induced refractive index change 0.32x10(-13...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید