Articles you may be interested in λ ∼ 3.1 μ m room temperature InGaAs/AlAsSb/InP quantum cascade lasers Appl. Above room temperature operation of short wavelength (λ = 3.8 μ m) strain-compensated In 0.73 Ga 0.27 As – AlAs quantum-cascade lasers Appl. Lasing properties of GaAs/(Al,Ga)As quantum-cascade lasers as a function of injector doping density Appl.

Aggressive signals should predict whether the sender of the signal will attack the receiver, yet this criterion has been little studied. We conducted experiments with male House Wrens (Troglodytes aedon) in northcentral Illinois in 2009 to test the hypothesis that rates of song delivery and wing-quivering (putative aggressive signals) signal aggressive intent. We simulated a conspecific territo...

Hemin treatment of the Philadelphia chromosome positive leukemia cell line, K562, accentuates a number of erythroid phenotypic characteristics. The nature of this hemin effect was investigated by examining heme production and heme biosynthetic and catabolic enzyme activity in untreated and 0.05 mM hemin-treated cells. Activities of -aminolevulinic acid synthetase (ALAS). the rate limiting heme ...

We have switched GaAs/AlAs and AlGaAs/AlAs planar microcavities that operate in the "Original" (O) telecom band by exploiting the instantaneous electronic Kerr effect. We observe that the resonance frequency reversibly shifts within one picosecond when the nanostructure is pumped with low-energy photons. We investigate experimentally and theoretically the role of several parameters: the materia...

(February 1, 2008) Recent advances in nanotechnology permit fabrication of complex nanostructures with special electronic and optical properties reflecting dimensional confinement on a nanometer scale, e.g. multiple quantum wells and core-shell structures.4–7 The essential building blocks of such structures are alternating layers of different semiconducting materials, acting as “wells” and “bar...

Este documento presenta la evaluación estructural del cuerpo de una aeronave ligera categoría vla (masa máxima al despegue inferior o igual a 1200 kg), usando sofware dinámica computacional fluidos (CDF) para evaluar el comportamiento aerodinámico y método elementos finitos su estructural. Para se dividió en cabina, superficies vuelo (alas empenaje). Los modelos completos fueron extraídos model...

Abstrak: Kajian ini dilatarbelakangi oleh realitas mengagumkan dari Desa Pujon Kidul yang awalnya miskin dan tidak berkembang, kemudian menjelma menjadi desa mandiri, berdaya berprestasi. Berkat intervensi komunitas Pokdarwis Capung Alas, saat pujon kidul salah satu 10 wisata terbaik se-Indonesia. Pada tahun 2018, unit usaha memberikan sumbangsih pada Pendapatan Asli sebesar 1,3 M. Hal tentu sa...

Alas, there's nothing like a pinch of reality to pop an overinflated hype bubble. Yet not all software vendors that have fallen on hard times in recent years have succumbed to bankruptcy. In fact, Canadian software firms--MediSolution and Ormed--are proof that turnarounds are possible.

A new type of scanning probe microscope, combining features of the scanning tunnelling microscope, the scanning tunnelling luminescence microscope with a transparent probe and the aperture scanning near-field optical microscope, is described. Proof-of-concept experiments were performed under ultrahigh vacuum conditions at varying temperature on GaAs/AlAs heterostructures.

In this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a GaAs/AlAs spherical quantum dot has been calculated. The perturbation method has been used within the framework of effective mass approximation for these calculations. Overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...