Parking Under the Sun: Solar Heating As a Strategy for Passively Disinfecting COVID-19 in Passenger Vehicles During Warm-Hot Weather

2020 ◽  
Author(s):  
Xue Wang ◽  
Shiyi Sun ◽  
Boxin Zhang ◽  
Jie Han
Keyword(s):  
Solar Heating ◽  
The Sun ◽  
Passenger Vehicles ◽  
Hot Weather

Design of Solar Tracker Based on Square Structure and Camera Device

2014 ◽  
Vol 672-674 ◽  
pp. 105-108
Author(s):  
Yan Liu ◽  
Jian Liu ◽  
Ying Wei Song ◽  
De Wei Zhao ◽  
Lin Zhao ◽  
...  
Keyword(s):  
Heating System ◽  
Solar Heating ◽  
The Sun ◽  
Photovoltaic Generation ◽  
Heating Systems ◽  
Solar Tracker

Solar tracker is an important part of photovoltaic generation and solar heating system. By solar tracker, the efficiency of solar utility can be significantly improved. Considering the camera device is widely applied in the photovoltaic generation and solar heating systems, based on the visual motoring equipment, a kind of solar tracker is designed. Using the proposed solar tracker, the height and the angle of the sun can be detected and be applied in solar tracker controller. Experiments show this design has relatively high accurate rate during a week’s period while the weather are partly cloudy or clear. It shows good application future in photovoltaic generation and solar heating industries.

scholarly journals VII. Account of an experiment made with a thermometer, whose bulb was painted black, and exposed to the direct rays of the Sun: In a letter from Richard Watson, D. D. Regius Professor of Divinity at Cambridge, and F. R. S. to Mathew Maty, M. D. Sec. R. S

1773 ◽  
Vol 63 ◽  
pp. 40-41 ◽  
Keyword(s):  
The Sun ◽  
Hot Weather ◽  
Regius Professor

Dear Sir, During the hot weather, which we had in the latter end of June and the beginning of July last, I made an experiment at Cambridge, which I then thought no more of, but which an accident hath brought to my mind again; and I now venture to send you an account of it, in hopes that some of your philosophical friends will take the trouble of prosecuting it.

scholarly journals Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution

Science ◽  
2020 ◽  
Vol 368 (6491) ◽  
pp. 654-659 ◽  
Author(s):  
T. Morota ◽  
S. Sugita ◽  
Y. Cho ◽  
M. Kanamaru ◽  
E. Tatsumi ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Solar Heating ◽  
Space Weathering ◽  
The Sun ◽  
Surface Material ◽  
Exposed Surface ◽  
Sample Collection ◽  
Surface Evolution ◽  
Earth Asteroid ◽  
Short Period

The near-Earth asteroid (162173) Ryugu is thought to be a primitive carbonaceous object that contains hydrated minerals and organic molecules. We report sample collection from Ryugu’s surface by the Hayabusa2 spacecraft on 21 February 2019. Touchdown images and global observations of surface colors are used to investigate the stratigraphy of the surface around the sample location and across Ryugu. Latitudinal color variations suggest the reddening of exposed surface material by solar heating and/or space weathering. Immediately after touchdown, Hayabusa2’s thrusters disturbed dark, fine grains that originate from the redder materials. The stratigraphic relationship between identified craters and the redder material indicates that surface reddening occurred over a short period of time. We suggest that Ryugu previously experienced an orbital excursion near the Sun.

Research on Hanoi Women’s Demand for Sun Protective Clothing

2020 ◽  
Vol 30 (7) ◽  
pp. 65-68
Author(s):  
Thi Quynh Chi Ngo
Keyword(s):  
Ozone Depletion ◽  
Protective Clothing ◽  
Sun Protection ◽  
Whole Body ◽  
The Sun ◽  
Light Rain ◽  
Electronic Survey ◽  
Protective Ability ◽  
Hot Weather ◽  
Reasonable Price

Sun protection is an essential need of most women in Hanoi, especially in hot weather and ozone depletion. Sun protective clothing currently meets the needs of covering and protecting against UV rays but does not satisfy all the needs of comfort and aesthetics of the wearer. In order to propose solutions to improve the product, the researcher has designed a questionnaire, conducted a paper-based survey and electronic survey for 400 women living in Hanoi. The results showed that most of the respondents were satisfied with the sun protective ability and the reasonable price was from 200,000 to 500,000VND, however, if the product is improved on the style of clothing (simple, youthful, active), covering the whole body, the construction can be flexible according to the needs of use, integrating the ability of light rain-proof, antimycotic, it will better meet wearer's demand.

scholarly journals A RAINY DAY ON THE MOUNTAINS

1890 ◽  
Vol 22 (4) ◽  
pp. 67-68
Author(s):  
David Bruce
Keyword(s):  
The Sun ◽  
Hot Weather

There is a tradition extant in Denver that the sun shines in Colorado nearly every day. This last summer was a woeful exception, however, for, from the middle of April until the end of June, the weather would have been thought respectable only in Labrador, but the unusal wet and cold springs, although it retarded the insects, gave such an impetus to the growth of flowers and herbage on the mountain sides and tops, that, when the hot weather set in, all species of diurnals appeared to be unusally abundant, and every kind seemed to be flying at one time.

scholarly journals Messung der Diffusionsverluste von radiogenen und spallogenen Edelgasen in Steinmeteoriten II

1966 ◽  
Vol 21 (7) ◽  
pp. 1147-1159
Author(s):  
H. Hintenberger ◽  
L. Schultz ◽  
H. Wanke
Keyword(s):  
Grain Size ◽  
Cosmic Ray ◽  
Solar Heating ◽  
Rare Gas ◽  
The Sun ◽  
Grain Size Effect ◽  
Helium Content ◽  
Diffusion Loss ◽  
Mineral Components ◽  
Gas Measurements

Rare gas measurements (helium and neon) were carried out on single mineral components of 10 bronzite-chondrites, 10 hypersthene-chondrites and 1 amphoterite. Diffusion losses of 3He were detected in pyroxene on most meteorites studied. The helium content of olivine was found to be far less effected by diffusion compared to pyroxene. A loss of spallogenic helium is always connected with a loss of radiogenic helium.For most of the bronzite-chondrites the loss of radiogenic helium occured only during the time of cosmic ray exposure due to a more intensive heating caused by orbits closer to the sun. Bronzitechondrites containing high amounts of primordial gases showed equal relative losses of spallogenic and radiogenic helium each. The reason for this unexpected results is not clear, but it might be that it results from a grain-size-effect and perhaps also holds true for all other meteorites as far as diffusion loss in space due to solar heating is concerned.Many of hypersthene-chondrites suffered inside their parent bodies considerable losses of radiogenic helium before their exposure to the cosmic rays. From the radiogenic helium content in pyroxene we calculated an age of 560 · 106 years for five of these meteorites, but we are not quite sure that this is a true age.It could be proved that the highly varying ratio of 3He/21Ne in chondrites cannot be attributed to diffusion losses. Variations up to a factor of 4 were confirmed.The content of 3He in the metal phase of most meteorites investigated was found to be too low up to a factor of 2. A tritium loss in space is suggested as explanation of these deficiencies.

scholarly journals Applied Solar Energy and Introduction to Solar Technology and Solar Heating Systems: Analysis and Design with the Sun-Pulse Method

1982 ◽  
Vol 104 (3) ◽  
pp. 274-274
Author(s):  
David Kut ◽  
Gerald Hare ◽  
Marian Jacobs Fisk ◽  
H. C. William Anderson ◽  
Gordon F. Tully ◽  
...  
Keyword(s):  
Solar Energy ◽  
Systems Analysis ◽  
Pulse Method ◽  
Solar Heating ◽  
The Sun ◽  
Heating Systems ◽  
Analysis And Design ◽  
Systems Analysis And Design ◽  
Solar Technology

Is Obsidian Hydration Dating Affected by Relative Humidity?

1994 ◽  
Vol 41 (2) ◽  
pp. 185-190 ◽  
Author(s):  
Irving Friedman ◽  
Fred W. Trembour ◽  
George I. Smith ◽  
Franklin L. Smith
Keyword(s):  
Elevated Temperature ◽  
Chemical Composition ◽  
Relative Humidity ◽  
Solar Heating ◽  
The Sun ◽  
Ambient Conditions ◽  
Surface Samples ◽  
Hydrated Layer ◽  
Below Ground ◽  
Composition Measurements

AbstractExperiments carried out under temperatures and relative humidities that approximate ambient conditions show that the rate of hydration of obsidian is a function of the relative humidity, as well as of previously established variables of temperature and obsidian chemical composition. Measurements of the relative humidity of soil at 25 sites and at depths of between 0.01 and 2 m below ground show that in most soil environments, at depths below about 0.25 m, the relative humidity is constant at 100%. We have found that the thickness of the hydrated layer developed on obsidian outcrops exposed to the sun and to relative humidities of 30-90% is similar to that formed on other portions of the outcrop that were shielded from the sun and exposed to a relative humidity of approximately 100%. Surface samples of obsidian exposed to solar heating should hydrate more rapidly than samples buried in the ground. However, the effect of the lower mean relative humidity experiences by surface samples tends to compensate for the elevated temperature, which may explain why obsidian hydration ages of surface samples usually approximate those derived from buried samples.

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