Development of a fast drying hybrid lacquer in a low-relative-humidity environment based onkurome lacquer sap

2005 ◽  
Vol 98 (3) ◽  
pp. 1055-1061 ◽  
Author(s):  
Rong Lu ◽  
Takahisa Ishimura ◽  
Katsuya Tsutida ◽  
Takayuki Honda ◽  
Tetsuo Miyakoshi
Keyword(s):  
Relative Humidity ◽  
Humidity Environment

scholarly journals HIGROSCOPICITY OF CHARCOAL PRODUCED IN DIFFERENT TEMPERATURES

CERNE ◽  
2016 ◽  
Vol 22 (4) ◽  
pp. 423-430 ◽  
Author(s):  
Ananias Francisco Dias Júnior ◽  
Lucas Pereira Pirola ◽  
Saly Takeshita ◽  
Artur Queiroz Lana ◽  
José Otávio Brito ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Moisture Content ◽  
Adsorption Capacity ◽  
Carbonization Temperature ◽  
Salt Solutions ◽  
Final Temperature ◽  
Different Temperatures ◽  
Humidity Environment ◽  
Adsorbed Moisture

ABSTRACT This research aimed to evaluate hygroscopicity of charcoal produced under four different final carbonization temperatures. For evaluation of hygroscopicity charcoal samples were conditioned in environments with controlled temperature and relative humidity, using saturated salt solutions. The final carbonization temperature significantly influenced the products yields and the properties of charcoal. The charcoal produced in the final temperature of 750 °C showed the highest adsorption capacity of water, indicated by the moisture content after conditioning, in the higher relative humidity environment. Correlations were observed between adsorbed moisture and the porosity of charcoal produced.

scholarly journals The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
K. H. Chan ◽  
J. S. Malik Peiris ◽  
S. Y. Lam ◽  
L. L. M. Poon ◽  
K. Y. Yuen ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Smooth Surfaces ◽  
Sars Coronavirus ◽  
Route Of Transmission ◽  
Different Temperatures ◽  
Low Humidity ◽  
The Stability ◽  
Community Outbreaks ◽  
Respiratory Droplets ◽  
Humidity Environment

The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22–25°C and relative humidity of 40–50%, that is, typical air-conditioned environments. However, virus viability was rapidly lost (>3 log10) at higher temperatures and higher relative humidity (e.g., 38°C, and relative humidity of >95%). The better stability of SARS coronavirus at low temperature and low humidity environment may facilitate its transmission in community in subtropical area (such as Hong Kong) during the spring and in air-conditioned environments. It may also explain why some Asian countries in tropical area (such as Malaysia, Indonesia or Thailand) with high temperature and high relative humidity environment did not have major community outbreaks of SARS.

scholarly journals PL - 021 The research of High temperature exercise under different humidity environment effect on the body of water and salt metabolism

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Wenping Feng ◽  
Junfen Zhang ◽  
Wenyuan Shang ◽  
Pingxue Qiu ◽  
Aiqi Yu
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
High Temperature ◽  
Relative Humidity ◽  
Exercise Group ◽  
The Body ◽  
Exposure Group ◽  
Weight Loss Percentage ◽  
K Concentration ◽  
Humidity Environment

Objective Objective: This study was to investigate the body under high temperature (33 ℃) with different relative humidity (80%, 50%, 20%) combination of environment, respectively for 20 min 60% VO2max individual strength of quiet before and after the exposure of movement and under the same conditions, by measuring the participants within the body weight, serum sex hormone of blood, blood Na+、K+, Na+、K+ concentration in the urine of change, to explore in the sports stress and thermal stress of two kinds of stimulating the body water and salt metabolism characteristics, and to explore the effects of environmental humidity on the body's homeostasis. Methods Methods: This study selected 12 students of sports training major from Beijing sports university as subjects, with themselves as the control. The experiment is divided into six categories, respectively: high temperature 33℃ and 20% RH exposure group, the high temperature 33℃ and 20% RH campaign group, high temperature 33℃and 50% RH exposure group, the high temperature 33℃ and 50% RH campaign group, high temperature 33℃ and 80% RH exposure group and high temperature 33℃ and 80% RH. In this study all the environmental temperature are set up to 33℃, exercise intensity level of 60% VO2max selection for individual participants. Before every experiment, all participants were asked to quiet sit for 20 min and then measure the subjects' body weight, charge the subjects' vein blood and urine, take the same operation immediately after the experiment. Blood samples were stored at room temperature for 1 h, and 3000r/min was centrifuged for 20min. Serums were gathered through centrifugation, The urine and Serums were partial shipments in tube to be indicators of measurement. Serum Renin、ANGII、ALD、ADH、ANP、Na+、K+ concentration of serum and urine were tested Results Results:  (1)The subjects' weight loss percentage of exercise group was obviously higher than that of quiet exposure group, the difference is statistically significant (P < 0.01); In 80% RH environment weight loss percentage is significantly higher than that of 50% RH and 20% RH values (P < 0.01).There is no difference between 20%RH and 50%RH. (2) The exercise group of Renin, ANGII, ALD, ADH, concentration is significantly higher than the value of exposed group (P < 0.01), but the ANP concentrations were significantly lower than pure quiet exposure levels (P < 0.01). Conclusions Conclusions: (1) The body sweat more after exercise than just quiet exposed in high temperature, weight loss phenomenon more obvious; And with the increase of relative humidity environment,  dehydration will more serious. (2) Exercise factors can significantly promote the release of blood Renin, ANGII, ALD, ADH and   inhibit the release of ANP in the blood. By the way of strengthening the absorption process of water and ions, it can maintain the body's balance of water and ions.

Microbial Control by Low Oxygen and Low Relative Humidity Environment

1990 ◽  
Vol 35 (4) ◽  
pp. 222 ◽  
Author(s):  
Nieves Valentin ◽  
Mary Lidstrom ◽  
Frank Preusser
Keyword(s):  
Relative Humidity ◽  
Microbial Control ◽  
Low Oxygen ◽  
Humidity Environment

scholarly journals A relative humidity calibration from 5°C to 45°C in a mixed-flow humidity generator

2012 ◽  
Vol 16 (1) ◽  
pp. 193-205 ◽  
Author(s):  
Nenad Milosevic ◽  
Nenad Stepanic ◽  
Marijana Babic
Keyword(s):  
Relative Humidity ◽  
Dew Point ◽  
Temperature Uniformity ◽  
Mixed Flow ◽  
Humidity Generator ◽  
Point Temperature ◽  
Traceability Chain ◽  
Dew Point Temperature ◽  
Reference Measurements ◽  
Humidity Environment

The paper presents a method used in the Vinca Institute of Nuclear Sciences for a reliable and traceable relative humidity calibration in the temperature range from 5?C to 45?C. Inside a controllable temperature and humidity environment, supplied by a mixed-flow humidity generator, measurements of hygrometers under calibration are compared with those of calibrated reference instruments. A traceability chain from temperature to reference relative humidity and next to the hygrometers under calibrations is provided by using a chilled-mirror dew-point temperature system and precise relative humidity probes. Corresponding calibration uncertainties are analyzed, particularly those associated to the temperature uniformity of controlled calibration environment. Two examples of relative humidity calibration with dew-point and relative humidity reference measurements in the range from 15 to 75% of RH and 5?C to 45?C are presented and discussed.

scholarly journals Elastic and inelastic diffraction changes upon variation of the relative humidity environment of PurE crystals

2013 ◽  
Vol 69 (2) ◽  
pp. 194-212 ◽  
Author(s):  
R. Oliete ◽  
J. Pous ◽  
S. Rodríguez-Puente ◽  
C. Abad-Zapatero ◽  
A. Guasch
Keyword(s):  
Relative Humidity ◽  
Humidity Environment

Degradation of Y–Ba–Cu–O in a high-humidity environment

1988 ◽  
Vol 3 (5) ◽  
pp. 830-831 ◽  
Author(s):  
M. M. Garland
Keyword(s):  
Relative Humidity ◽  
Time Constant ◽  
Ac Susceptibility ◽  
High Humidity ◽  
High Humidity Environment ◽  
Humidity Environment

Changes in ac susceptibility of the high-Tc superconductor Y–Ba–Cu–O have been used to investigate the degradation of this material in the presence of high humidity. It is found that the fraction of YBa2Cu3O7 in a sample decreases exponentially with time when the sample is kept at 98% relative humidity and 20 °C. The time constant is approximately 22 days.

Analysis of Capillary Condensation of Vapor in Multi-Wall Carbon Nanotubes

2011 ◽  
Vol 483 ◽  
pp. 694-698
Author(s):  
Wei Wang ◽  
Xin Wang ◽  
Tuo Li ◽  
Wei Ping Chen
Keyword(s):  
Carbon Nanotubes ◽  
Relative Humidity ◽  
Humidity Sensor ◽  
Quartz Crystal ◽  
Capillary Condensation ◽  
Equivalent Model ◽  
Sensing Element ◽  
Multi Wall Carbon Nanotubes ◽  
As Adsorption ◽  
Humidity Environment

Multi-wall Carbon Nanotubes (MWNTs) is the new hotspot material as the active sensing element, but there is no certain theory on the phenomenon of the vapor's capillary condensation in MWNTs for the present. This paper presents a new theory that the capillary condensation of vapor in MWNTs mostly occur in the internal hollow tube, according to the calculation of equivalent model of MWNTs. A kind of carbon nanotubes (CNTs) humidity sensor based on quartz crystal microbalance was fabricated, CNTs employed as adsorption materials. The sensor was put in 11% and 97% relative humidity environment in experimental, and the value of MH2O/MCNT was calculated. The theory in this paper is proved by the comparison between the experimental and the analysis results.

scholarly journals A fan-attached jacket worn in an environment exceeding body temperature suppresses an increase in core temperature

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kahori Hashimoto ◽  
Seichi Horie ◽  
Chikage Nagano ◽  
Hiroyuki Hibino ◽  
Kimiyo Mori ◽  
...  
Keyword(s):  
Body Temperature ◽  
Relative Humidity ◽  
Core Temperature ◽  
Heat Dissipation ◽  
Ambient Air ◽  
Bicycle Ergometer ◽  
Japanese Men ◽  
Hot Air ◽  
Subjective Evaluations ◽  
Humidity Environment

AbstractWe examined whether blowing hot air above body temperature under work clothing may suppress core temperature. Nine Japanese men engaged in two 30-min bicycle ergometer sessions at a workload of 40% VO2max at 40 °C and 50% relative humidity. The experiment was conducted without wearing any cooling apparatus (CON), wearing a cooling vest that circulated 10.0 °C water (VEST), and wearing a fan-attached jacket that transferred ambient air underneath the jacket at a rate of 30 L/s (FAN). The VEST and FAN conditions suppressed the increases of rectal temperature (CON, VEST, FAN; 38.01 ± 0.19 °C, 37.72 ± 0.12 °C (p = 0.0076), 37.54 ± 0.19 °C (p = 0.0023), respectively), esophageal temperature (38.22 ± 0.30 °C, 37.55 ± 0.18 °C (p = 0.0039), 37.54 ± 0.21 °C (p = 0.0039), respectively), and heart rate (157.3 ± 9.8 bpm, 136.9 ± 8.9 bpm, (p = 0.0042), 137.5 ± 6.5 bpm (p = 0.0023), respectively). Two conditions also reduced the estimated amount of sweating and improved various subjective evaluations. Even in the 40 °C and 50% relative humidity environment, we may recommend wearing a fan-attached jacket because the heat dissipation through evaporation exceeded the heat convection from the hot ambient air.

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