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Abstract This article presents the use of image processing technique to study the effect of injection current on the optical power distribution and laser spot cross-section (profile) of semiconductor laser type (AlGaInP)...

Due to their promising properties, surface magneto plasmons have attracted great interests in the field of plasmonics recently. Apart from flexible modulation of the plasmonic properties by an external magnetic...

We investigate the electrical properties of semiconductor spherical GaAs/AlxGa1-xAs quantum-dot systems of different dimensionality depending on the Fermi level position and temperature, and concentration of aluminum in ...

To fulfill the demands of high-speed photonic applications, researchers, and engineers have been working to improve the modulation bandwidth (MBW) of semiconductor lasers. We extend our prior work on modeling a vertical-...

High-density polyethylene sheets (HDPE), HDPE/GaAs and HDPE/ GaAs  composites with GaAs and GaAs semiconductor fillers were studied by X-ray diffractometry at room temperature. The degree of crystallization of these sam...

The semiconductor ZnO has gained substantial interest in the research community in part because of its large exciton binding energy (60meV) which could lead to lasing action based on exciton recombination even above room...

Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources...

Novel physical phenomena can emerge in low-dimensional nanomaterials. Bulk MoS(2), a prototypical metal dichalcogenide, is an indirect bandgap semiconductor with negligible photoluminescence. When the MoS(2) crystal is t...

It has been recognized for some time that the spontaneous emission by atoms is not necessarily a fixed and immutable property of the coupling between matter and space, but that it can be controlled by modification of the...

Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated. The self-organized, oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport a...

This review describes a new paradigm of electronics based on the spin degree of freedom of the electron. Either adding the spin degree of freedom to conventional charge-based electronic devices or using the spin alone ha...

An eleven item clinician-administered Mania Rating Scale (MRS) is introduced, and its reliability, validity and sensitivity are examined. There was a high correlation between the scores of two independent clinicians on b...

This paper reports on the development of an instrument designed to measure the various perceptions that an individual may have of adopting an information technology (IT) innovation. This instrument is intended to be a to...

1. Introduction 2. Basic concepts 3. Devising the items 4. Scaling responses 5. Selecting the items 6. Biases in responding 7. From items to scales 8. Reliability 9. Generalizability theory 10. Validity 11. Measuring cha...

Materias / palabras clave: Electroluminescence; Light-emitting diode; Materials science; Conjugated system; Delocalized electron; Polymer; Optoelectronics; Semiconductor; Organic semiconductor; OLED; Diode; Nanotechnology

Materias / palabras clave: Psychology; Conceptualization; Construct validity; Construct (python library); Scale (ratio); Arousal; Internal consistency; Reliability (semiconductor); Emotional regulation; Cognitive psychology; Exploratory factor ana...

Materias / palabras clave: Nanotechnology; Transition metal; Chemistry; Graphene; Semiconductor; Band gap; Battery (electricity); Exfoliation joint; Supercapacitor; Water splitting; Electrode; Materials science

Materias / palabras clave: Computer science; Segmentation; Tracing; Artificial intelligence; Context (archaeology); Reliability (semiconductor); Set (abstract data type); Image segmentation; Machine learning; Physics; Power (physics); Operating sy...

La protonterapia es una técnica emergente de radioterapia que aprovecha la particular distribución de energía de los haces de protones, caracterizada por el pico de Bragg, donde la mayor parte de la dosis se deposita ...

We present an efficient scheme for calculating the Kohn-Sham ground state of metallic systems using pseudopotentials and a plane-wave basis set. In the first part the application of Pulay's DIIS method (direct inversion ...

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTADDITION / CORRECTIONThis article has been corrected. View the notice.Solar Water Splitting CellsMichael G. Walter, Emily L. Warren, James R. McKone, Shannon W. Boettcher†, Qi...

Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent ad...

Nanomaterials are engineered structures with at least one dimension of 100 nanometers or less. These materials are increasingly being used for commercial purposes such as fillers, opacifiers, catalysts, semiconductors, c...