Results 91 to 100 of about 173,444 (351)

Multifrequency microwave thermograph for biomedical applications

Journal of Telecommunications and Information Technology, 2004
This paper presents problems related to thermal radiation of human bodies in microwave range in aspect of diagnosis of breast carcinoma. A mathematical model of thermal radiation transfer through tissues is introduced and methods of measurement of ...
Bronisław Stec
doaj   +1 more source

Antenna and radome loss measurements for MFMR and PMIS with appendix on MFMR/PMIS computer programs [PDF]

The NMSU/PSL radiometer antenna calibration facility is described, and the antenna and radome loss measurements made on the passive microwave imaging system and the multifrequency microwave radiometer are summarized.
Carver, K. R., Cooper, W. K.
core   +1 more source

Environmental factors affect the condition of critically endangered freshwater pearl mussels by disrupting terrestrial–aquatic resource connectivity

Conservation Science and Practice, EarlyView.
This regional‐scale field study shows that critically threatened freshwater pearl mussels rely substantially on terrestrial organic matter, indicating strong connectivity between terrestrial and aquatic ecosystems. However, human pressures at the catchment scale reduced this resource connectivity.
Mahsa Hajisafarali, Sabrina Nykänen, Jouni Taskinen, Matthew R. D. Cobain, Jonna Kuha, Panu Oulasvirta, Katariina Rautiainen, Asta Vaso, Mikko Kiljunen   +8 more
wiley   +1 more source

Disproportional ventilatory response to incremental exercise in individuals with cerebral palsy

Developmental Medicine &Child Neurology, EarlyView.
Individuals with cerebral palsy demonstrate a disproportionate ventilatory response during incremental exercise. Compared with typically developing peers, respiratory frequency increases earlier and at comparable exercise intensities, contributing to higher perceived exertion and reduced ventilatory efficiency. At task failure, respiratory frequency is
Linnéa Corell, Emma Hjalmarsson, Rodrigo Fernandez‐Gonzalo, Annika Kruse, Sebastian Edman, Asta Kizyte, Rouli Wang, Arnoud Edelman Bos, Peder Sörensson, Eva Pontén, Petra E. M. van Schie, Annemieke I. Buizer, Jessica Norrbom, Daniele A. Cardinale, Ferdinand von Walden   +14 more
wiley   +1 more source

Special Pyrheliometer Shroud Development [PDF]

, 1984
To insure that the insolation values accurately represent the input power to a power conversion unit the field of view (FOV) of the concentrator aperture and the insolation radiometer must be the same.
Dennison, E. W.
core   +1 more source

The effect of environmental factors on transepithelial potential in a model Amazonian teleost, the tambaqui (Colossoma macropomum): Implications for sodium balance in harsh environments

Journal of Fish Biology, EarlyView.
Abstract The tambaqui (Colossoma macropomum, G. Cuvier 1818) thrives both in the ion‐poor waters of the Amazon and in commercial aquaculture. In both, environmental conditions can be harsh due to low ion levels, occasional high salt challenges (in aquaculture), low pH, extreme PO2 levels (hypoxia and hyperoxia), high PCO2 levels (hypercapnia), high ...
Chris M. Wood, Anne Crémazy, Carolyn Morris, Ora E. Johannsson, Gudrun De Boeck, Adalberto Luis Val   +5 more
wiley   +1 more source

Noise-optimized silicon radiometers

Journal of Research of the National Institute of Standards and Technology, 2000
This paper describes a new, experimentally verified, noise analysis and the design considerations of the dynamic characteristics of silicon radiometers. Transimpedance gain, loop gain, and voltage gain were optimized versus frequency for photodiode current meters measuring ac and dc optical radiation.
openaire   +2 more sources

Tree growth response and adaptation to climate change and climate extremes: From canopy to stem

Journal of Integrative Plant Biology, EarlyView.
This review synthesizes the responses and adaptations of tree growth, including canopy phenology, intra‐annual wood formation dynamics, and annual stem growth, to climate change and climate extremes. It highlights key knowledge gaps for future research to support sustainable forest management and enhance forest carbon storage under ongoing climate ...
Feiyu Yang, Leyao Zhu, Jiahao Cao, Fei Yang, Borbála Codogno, Qianqian Ma, Hanxue Liang, Wenjin Wang, Jian‐Guo Huang   +8 more
wiley   +1 more source

Comparison of Decadal Trends among Total Solar Irradiance Composites of Satellite Observations

Advances in Astronomy, 2019
We present a new analysis of the two-decade-old controversy over interpretation of satellite observations of total solar irradiance (TSI) since 1978 and the implications of our findings for TSI as a driver of climate change.
Nicola Scafetta, Richard C. Willson
doaj   +1 more source

Three-dimensional vector modeling and restoration of flat finite wave tank radiometric measurements [PDF]

The three-dimensional vector interaction between a microwave radiometer and a wave tank was modeled. Computer programs for predicting the response of the radiometer to the brightness temperature characteristics of the surroundings were developed along ...
Balanis, C. A., Truman, W. M.
core   +1 more source