نتایج جستجو برای: mean qd model

تعداد نتایج: 2588699  

2017
Yangyang Xie Chong Geng Yiqun Gao Jay Guoxu Liu Zi-Hui Zhang Yonghui Zhang Shu Xu Wengang Bi

In this report, to tackle the thermal fluorescent quenching issue of II-VI semiconductor quantum dots (QDs), which hinders their on-chip packaging application to light-emitting diodes (LEDs), a QD-ZnS nanosheet inorganic assembly monolith (QD-ZnS NIAM) is developed through chemisorption of QDs on the surface of two-dimensional (2D) ZnS nanosheets and subsequent assembly of the nanosheets into a...

2001
Yu Zhu Qing-feng Sun Tsung-han Lin

An extraordinary temperature dependence of the resonant Andreev reflection via discrete energy level in a normal-metal / quantum-dot / superconductor (N-QD-S) system is predicted theoretically by using Green function technique. The width of zero bias conductance peak in N-QD-S is about √ ΓL + Γ 2 R and does not exhibit thermal broadening, where ΓL and ΓR are the coupling strength between QD and...

Journal: :Optics letters 2012
Ludan Huang Matthew Strathman Lih Y Lin

We propose a new approach to experimentally determine the spatial resolution of nanogap quantum dot (QD) photodetectors consist of solution-processed QDs. Cross talk between a pair of closely positioned QD photodetectors was measured. Devices with 200 nm spacing exhibit low crosstalk of 8.4%. A single QD photodetector also shows high sensitivity, with a lowest detectable optical intensity of 95...

2015
Dan Han Shaoyu Hao Cheng Tao Qian Zhao Yumei Wei Zhengzheng Song Baosheng Li

BACKGROUND This study was designed to compare toxicities, disease control, and survival outcomes for limited disease small-cell lung cancer (LD-SCLC) treated with once daily (QD) versus twice daily (BID) radiotherapy. METHODS All of the patients received four to six cycles of platinum plus etoposide. In the QD group, irradiation was given via conventional radiotherapy with a dose of 60 Gy at ...

Journal: :Nanotechnology 2008
J F Chen C C Yu C H Yang

With the incorporation of nitrogen (N) into InAs quantum dots (QDs), the carrier distribution near the QD displays electron emissions from a localized N-induced defect state at 0.34 eV and a weak emission at 0.15 eV from the QD. This defect state causes drastic carrier depletion in the neighboring GaAs bottom layer near the QD, which can effectively suppress tunneling emission for the QD excite...

Journal: :Chest 1991
K G Chetty J A Despars A Giron R W Light

The objective of the present study was to determine if patients with COPD who were taking Theo-Dur bid or tid (total dose 400 to 900 mg per day) could be safely switched to Uni-Dur, 800 mg given qd at bedtime. Twenty-eight patients were enrolled in the study, and 23 completed the study. The mean daily dose of theophylline prior to the study was 828 mg, while the mean dose after three weeks of U...

2013
Yasuhiro Shirasaki

Saturated and tunable emission colors make colloidal quantum-dot light-emitting diodes (QD-LEDs) interesting for the next generation of display and lighting technologies. However, there still remain various hurdles to the commercialization of QD-LEDs, including their relatively low external quantum efficiencies (EQE). In this thesis, we study the efficiency loss mechanisms present in the latest...

Journal: :Journal of clinical pharmacology 2004
Walter K Kraft Jacqueline B McCrea Gregory A Winchell Alexandra Carides Richard Lowry Eric J Woolf Sandra E Kusma Paul J Deutsch Howard E Greenberg Scott A Waldman

Two studies examined the pharmacokinetics of indinavir and rifabutin when coadministered in healthy subjects. Rifabutin, which induces the expression of cytochrome P450 (CYP) 3A, and indinavir, which inhibits that enzyme system, are frequently coadministered in patients infected with HIV. The second study was undertaken to determine if altering the dose of rifabutin coadministered with indinavi...

2011
Luke J. Mortensen Christopher E. Glazowski James M. Zavislan Lisa A. DeLouise

Understanding the skin penetration of nanoparticles (NPs) is an important concern due to the increasing presence of NPs in consumer products, including cosmetics. Technical challenges have slowed progress in evaluating skin barrier and NP factors that contribute to skin penetration risk. To limit sampling error and other problems associated with histological processing, many researchers are imp...

Journal: :Epilepsy Research 2018
Gregory Krauss Victor Biton Jay H. Harvey Christian Elger Eugen Trinka Patrício Soares da Silva Helena Gama Hailong Cheng Todd Grinnell David Blum

OBJECTIVE To examine the influence of titration schedule and maintenance dose on the incidence and type of treatment-emergent adverse events (TEAEs) associated with adjunctive eslicarbazepine acetate (ESL). METHODS Data from three randomized, double-blind, placebo-controlled trials were analyzed. Patients with refractory partial-onset seizures were randomized to maintenance doses of ESL 400, ...

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