The recent progress on radiative cooling reveals its potential for applications in highly efficient passive cooling. This approach utilizes the maximized emission of infrared thermal radiation through the atmospheric window for releasing heat and minimized absorption of incoming atmospheric radiation. These simultaneous processes can lead to a device temperature substantially below the ambient ...

Soil moisture (SM) retrieval from SMOS (the Soil Moisture and Ocean Salinity mission) and SMAP (the Soil Moisture Active/Passive mission) passive microwave data over forested areas with required accuracy is of great significance and poses some challenges. In this paper, we used Ground Wireless Sensor Network (GWSN) SM measurements from 9 September to 5 November 2015 to validate SMOS and SMAP Le...

In this study, we evaluated chlorophyll fluorescence (CF) under two extreme 13 illumination conditions at plant scale with a passive spectroradiometer. Fluorescence (F) was 14 estimated by reading directly from radiance spectra of a variety of plants illuminated with 15 light-emitting diode (LED) grow lights in the laboratory. Solar-induced fluorescence (SIF) was 16 estimated from spectral meas...

This program encompassed an analytical and experimental inveSLigdgion 0, the application of passive thermal control techniques to extravehicular flexible space garments in 300 nautical mile earth orbits. Results indicate that passive thermal control by varying the absorptance and emittance of the outer surface of the garment is not possible when internal heat generated is in excess of 1500 Btu/...

Abstract Passive building strategies in tropical climates are believed to create thermal comfort, thereby enhancing the productivity of workforce office buildings. Very little study, however, exists on impact these passive design workers This study presents results workers, taking samples from buildings Lagos, Nigeria. Copies questionnaires were administered gather required data. Observation gu...

Recently builders have shown considerable interest in combining the features of active and passive solar space heating systems into a hybrid system employing active collection and some form of passive discharge/storage device. Ye examined the performance and economics of a hybrid2 air-based, residential system using 18.5 m of roof-mounted air collectors and a hollow-core slab that discharges di...

Introduction: An important goal in the in situ exploration of asteroids by spacecraft is the determination of not just the surface characteristics of a target asteroid, but also its interior structure, such as density, porosity and compositional changes at depth. Information about the complex dielectric constant along a raypath, which is related to these quantities, can be determined by monitor...

The paper addresses the design of large roof structures for semi outdoor spaces through an investigation of a type of performance-oriented design, which aims at integrating performance evaluations in the early stages of the design process. Particularly, aiming at improving daylight and thermal comfort under large structures, the paper focuses on the exploration of passive solar strategies to re...