Results 131 to 140 of about 217,567 (351)
Advanced Science, EarlyView.Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas +6 more
wiley +1 more source
Automatic Solar Tracking System
, 2016 The solar energy is a clean,freely and abundantly available alternative energy source in nature. Capt uring solar energy from nature is an advantageous task fo r power generation. Conversion of sun energy into another form is a highly complex phenomenon. For th is purpose,Photo-Voltaic (PV) panels are used which convert Sun energy to Direct Current (DC)
openaire +1 more source
Rates of solar angles for two-axis concentrators [PDF]
The Sun's position by the azimuth and elevation angles and its rate of change at any time of day are determined to design 2 axis tracking mechanisms of solar concentrators.
Lansing, F. L., Yung, C. S.
core +1 more source
Automated sunspot detection and the evolution of sunspot magnetic fields during solar cycle 23
, 2010 The automated detection of solar features is a technique which is relatively underused but if we are to keep up with the flow of data from spacecraft such as the recently launched Solar Dynamics Observatory, then such techniques will be very valuable to ...
Fletcher, Lyndsay, Watson, Fraser
core +1 more source
Design and Implementation of Solar Tracker to Defeat Energy Crisis in Pakistan [PDF]
, 2019 Qamar Atta Ul Haq
openalex +1 more source
Coin-Based Mobile Charger using Solar Tracker
, 2021 P. S. Nethravathi +3 more
openalex +2 more sources
Advanced Science, EarlyView.This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo +6 more
wiley +1 more source
Study of Free‐Space Optical Quantum Network: Review and Prospectives
Advanced Science, EarlyView.Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley +1 more source
Spacecraft Combined Attitude and Sun Tracking (CAST) System. [PDF]
, 2011 The spacecraft solar panel Sun tracking mechanism is utilized as an attitude control system. This is done by manipulating the tracking control of both the solar panels along the spacecraft pitch axis to generate torque in order to counter-act the ...
Allaudin, Mohd Faizal +1 more
core
Quasi full-disk maps of solar horizontal velocities using SDO/HMI data
, 2012 For the first time, the motion of granules (solar plasma on the surface on scales larger than 2.5 Mm) has been followed over the entire visible surface of the Sun, using SDO/HMI white-light data.
Berger, T. +8 more
core +3 more sources