Báo cáo hóa học: " Spin effects in InAs self-assembled quantum dots" pot

... resolved pho toluminescence in an n-type resonant tunneling diode (RTD) of GaAs/ AlGaAs which incorporates a layer of InAs self-assembled quantum dots (QDs) in the center of a GaAs quantum well (QW). ... and light intensity. Our results are explained in terms of the tunneling of minority carriers into the QW, carrier capture by InAs QDs and bias-controlled density of holes in...

Ngày tải lên: 21/06/2014, 05:20

... clearly indicated that formaldehyde can induce genotoxic effects in proliferating cultured mammalian cells. Furthermore, some in vivo studies have found changes in epithelial cells and in peripheral ... cytokinesis-block technique eliminates potential background caused by effects on cell division kinetics [16]. The goal of this study is to contribute to the investiga- tion of geno...

Ngày tải lên: 20/06/2014, 00:20

... cleaning and polymer coating A silicon wafer 100 (p-type, Boron-doped) was cut into 1×1cm 2 pieces. The silicon substrates were cleaned as follows: soaking in the cleaning bath at 75°C for 10 min. The ... were annealed in a vacuum oven at 115°C for 15, 30, 45, 60, 90 min. Morphological characterization AFM images were obtained in tapping mode using a MultiMode Nanoscope IIIa (Digital In...

Ngày tải lên: 21/06/2014, 05:20

... regulating the innate and adap- tive immune systems. Cytokines are thus upregulated in the brain in a variety of diseases, including stroke. In the brain, cytokines are expressed not only in the ... area of research in translational medicine. Cytokines and brain inflammation Cytokines are a group of small glycoproteins that are pro- duced in response to an antigen and were origina...

Ngày tải lên: 18/06/2014, 15:20

... that the brain may control limb kinematics in a reaching task by shifting the equilibrium points [53] or creating a "vir- tual trajectory" of the end-point [54], instead of scaling individual ... design intuitive forms of feeding back integrated sensor information to avoid over- loading patients' perceptions. In general, investigators should determine the factors contributi...

Ngày tải lên: 19/06/2014, 10:20

... mak- ing and execution in practice. Numerous factors can be involved in athletes' decisions to use supplements including desired end points such as increasing strength, endurance, training ... enhance- ment and/or health maintenance [10,15,34-37] includ- ing: caffeine, ephedrine, creatine, whey protein, antioxidants, ginseng, multivitamins, vitamin C, iron, Echinacea and magnesium su...

Ngày tải lên: 20/06/2014, 00:20

... do not interfere if they are sufficiently apart (e.g., in parallel streets). The main finding of the study reported in this subsec- tion is that a hybrid connectivity solution, by incurring significantly ... understanding of the impact of intra-BSS and inter-BSS interference, respectively referring to the amount of collisions and interference among nodes belonging to t he same BSS and nod...

Ngày tải lên: 20/06/2014, 22:20

... access point (AP). In order to reduce the time in processing a handoff, its operations must be integrated across layers. Even though lower-laye r protocols involved in handoff are simplex, integration ... indicators. 2.1.4. Other indicators Aside from layer-based indicators, valuable indicators for AP selection include user count [22], potential hid- den nodes [15], moving direction [23...

Ngày tải lên: 21/06/2014, 02:20

... the original inequality due to Hardy. Interesting Hardy inequalities on noncompact Riemannian manifolds were established in [2]. In the quantum- waveguide context, vari ous types of Hardy inequality ... J. P. Carini, and D. P. Murdock, Binding and Scattering in Two-Dimensional Systems, Lecture Notes in Physics, vol. m60, Springer, Berlin, 1999. [22] B. Opic and A. Kufner, Hardy-Type...

Ngày tải lên: 22/06/2014, 21:20

... coating. Rearrangement of quantum dot coating can lead to decrease in defects on quantum dot surface and increase in photolumines- cence quantum yield. Sudden increase in quantum dots photoluminescence ... photolumines- cence of quantum dots increased in both investigated solutions (quantum dots without protein and quantum dots with protein). Despite quite large increase...

Ngày tải lên: 21/06/2014, 08:20