Results 31 to 40 of about 1,651,597 (301)

Coherent beam superposition of ten diode lasers with a Dammann grating [PDF]

open access: yes, 2010
We demonstrate the use of a binary diffractive optical element in a very simple setup to convert the multilobed beam from a low fill factor array of coherent laser diodes into a quasi-Gaussian beam.
de Rossi, Sébastien   +5 more
core   +2 more sources

The Defect Passivation of Tin Halide Perovskites Using a Cesium Iodide Modification

open access: yesMolecules, 2023
Tin-based perovskites are promising for realizing lead-free perovskite solar cells; however, there remains a significant challenge to achieving high-performance tin-based perovskite solar cells.
Linfeng He   +6 more
doaj   +1 more source

Optimization of the fleet per shovel productivity in surface mining: Case study of Chilanga Cement, Lusaka Zambia

open access: yesCogent Engineering, 2017
A well-organized fleet management in surface mining is required in order to maximize truck per shovel Match Factors. The most common materials handling in surface mining is by truck and shovel combination.
Marsheal Fisonga, Victor Mutambo
doaj   +1 more source

A Semi-experimental Method for Fast Evaluation of the Performance of Grid-type Dye-sensitized Solar Module

open access: yesInternational Journal of Electrochemical Science, 2013
A semi-experimental method is developed to evaluate the performance behavior of grid-type dye-sensitized solar module based on information from a small cell.
Tzu-Chien Wei   +3 more
doaj   +1 more source

Investigation of Different BPD Placement Topologies for Shaded Modules in a Series-Parallel Configured PV Array

open access: yesIEEE Access, 2020
This article investigates the performance of serial-parallel (SP) configuration of photovoltaic (PV) array under artificial arrangement for partial shading conditions (PSCs).
Vikas Singh Bhadoria   +4 more
doaj   +1 more source

Boosting the Performance of Perovskite Solar Cells through Systematic Investigation of the Annealing Effect of E-Beam Evaporated TiO2

open access: yesMicromachines, 2023
Electron transport layer (ETL) plays an undeniable role in improving the performance of n-i-p planar perovskite solar cells (PSCs). Titanium dioxide (TiO2) is known as a promising ETL material for perovskite solar cell.
Tao Xue   +9 more
doaj   +1 more source

Device Engineering of Perovskite Solar Cells to Achieve Near Ideal Efficiency

open access: yes, 2015
Despite the exciting recent research on perovskite based solar cells, the design space for further optimization and the practical limits of efficiency are not well known in the community.
Agarwal, Sumanshu, Nair, Pradeep R.
core   +1 more source

Fractal Measures and Nonlinear Dynamics of Overcontact Binaries [PDF]

open access: yes, 2019
Overcontact binary stars are systems of two stars where the component stars are in contact with each other. This implies that they share a common envelope of gas.
Ambika, G., George, Sandip V., Misra, R.
core   +2 more sources

Rapid Synthesis of Hexagonal-Shaped Zn(Al)O-MMO Nanorods for Dye-Sensitized Solar Cell Using Zn/Al-LDH as Precursor

open access: yesNanomaterials, 2022
This study reports a simple new technique for the preparation of novel hexagonal-shaped mixed metal oxides (MMO) nanorods using Zn/Al-layered double hydroxide (LDH) as a precursor for dye-sensitized solar cell (DSSC) application.
Ethar Yahya Salih   +7 more
doaj   +1 more source

Superconducting Superstructure for the TESLA Collider [PDF]

open access: yes, 1998
We discuss the new layout of a cavity chain (superstructure) allowing, we hope, significant cost reduction of the RF system of both linacs of the TESLA linear collider. The proposed scheme increases the fill factor and thus makes an effective gradient of
B. Aune   +11 more
core   +4 more sources

Home - About - Disclaimer - Privacy