scholarly journals A comparative study of hard gelatin and hypromellose capsules containing a dry extract of senna (Cassia angustifolia) under controlled temperature and relative humidity.

2020 ◽  
Vol 82 (4) ◽  
Author(s):  
RENATA ARAUJO ◽  
M. SOARES ◽  
J. L. MAZZEI ◽  
A. C. SIANI
Keyword(s):  
Relative Humidity ◽  
Comparative Study ◽  
Dry Extract ◽  
Cassia Angustifolia

scholarly journals Comparative study on thermal comfort responses and sleep quality between Indonesian and Japanese students during summer in Japan

2021 ◽  
Vol 896 (1) ◽  
pp. 012074
Author(s):  
W Budiawan ◽  
K Tsuzuki ◽  
H Sakakibara
Keyword(s):  
Relative Humidity ◽  
Sleep Quality ◽  
Comparative Study ◽  
Thermal Comfort ◽  
Thermal Sensation ◽  
Temperate Climate ◽  
Japanese Students ◽  
The Mean

Abstract The comfort temperature and sleep quality of Indonesian residing in Japan during summer might be different from Japanese. As an extended previous research, this study aimed to compare the thermal comfort and sleep quality between Japanese and Indonesian students. Male Indonesian and Japanese students aged 20-35 years participated in this study. The participants completed a survey regarding thermal sensation before sleep. During sleep, actigraphy was used to monitor sleep. Additionally, the temperature and relative humidity of the participants’ bedrooms were recorded. The findings of this study indicated that Indonesian students’ bedroom temperature and relative humidity were not significantly different from those of Japanese students during the summer. Most of Indonesian students preferred neutral, like the Japanese students. According to a thermal comfort survey, Indonesians had the same sensation as Japanese (slightly comfortable). However, the Griffiths method revealed that the mean comfort temperature of Indonesian was higher than those of Japanese students. We also discovered that Indonesian students had shorter duration on bed and sleep minute than Japanese students. Furthermore, the sleep rate of Indonesian students was comparable to that of Japanese students. In conclusion, Indonesian students as tropical native became capable of adjusting to the hot and humid conditions in temperate climate, Japan.

scholarly journals A comparative study of physicochemical and functional properties of silver carp myofibrillar protein glycated with glucose and maltodextrin

RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 1008-1015 ◽  
Author(s):  
Shulai Liu ◽  
Peicheng Zhao ◽  
Jingjing Zhang ◽  
Qiuhong Xu ◽  
Yuting Ding ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Comparative Study ◽  
Functional Properties ◽  
Maillard Reaction ◽  
Silver Carp ◽  
Myofibrillar Protein ◽  
Hypophthalmichthys Molitrix ◽  
Physicochemical And Functional Properties

Myofibrillar protein (Mf) from silver carp (Hypophthalmichthys molitrix) was incubated with glucose and maltodextrin for 0–96 h at 50 °C and 75% relative humidity to obtain glycoconjugates in different periods of the Maillard reaction.

Kaolinite-potassium acetate and halloysite-potasium acetate complexes prepared by mechanochemical, solution and homogenization techniques: a comparative study

Clay Minerals ◽  
2014 ◽  
Vol 49 (3) ◽  
pp. 457-471 ◽  
Author(s):  
É. Mako ◽  
A. Kovács ◽  
E. Horváth ◽  
J. Kristóf
Keyword(s):  
Relative Humidity ◽  
Comparative Study ◽  
Rotational Speed ◽  
Potassium Acetate ◽  
Structural Deformation ◽  
Mass Ratio ◽  
Mechanochemical Method ◽  
Solution Intercalation ◽  
Body Mass Ratio ◽  
Grinding Time

AbstractKaolinite- and halloysite-potassium acetate complexes were synthesized by cogrinding with solid potassium acetate (mechanochemical intercalation). The efficiency of mechanochemical intercalation was compared to the intercalation in solution and by homogenization. The effects of ageing and grinding parameters (grinding time, sample:grinding body mass ratio (SGMR), rotational speed) and the humidity on the intercalation were studied. The degree of intercalation increased exponentially with ageing of the samples prepared by mechanochemical and homogenization techniques. For the mechanochemical and homogenization techniques the required amount of potassium acetate per gram of kaolin (∼0.4 g/g) was two orders of magnitude lower than that for the solution intercalation (78.6 g/g). The highest degree of intercalation (86%) and the lowest structural deformation were achieved by the mechanochemical method (¼ h of co-grinding with 1:2 SGMR at 300 rpm), followed by 16 h ageing at 57% relative humidity.

scholarly journals Comparative Study of the West African Continental, Coastal, and Marine Atmospheric Profiles during the Summer of 2006

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Ibrahima Kalil Kante ◽  
Daouda Badiane ◽  
Saïdou Moustapha Sall ◽  
Abdoulaye Deme ◽  
Arona Diedhiou
Keyword(s):  
Boundary Layer ◽  
Relative Humidity ◽  
Comparative Study ◽  
Marine Boundary Layer ◽  
Inversion Layer ◽  
Mixing Layer ◽  
Vertical Gradient ◽  
Dew Point ◽  
Vertical Profiles ◽  
Rainy Period

We used sounding data of the Multidisciplinary Analysis of the African Monsoon experience in summer 2006 at continental and coastal sites of West Africa, respectively, to analyze the vertical profiles of relative humidity, temperature, dew point, and speed and wind direction for the JJAS rainy period. The vertical gradient method is applied to the profiles of some thermodynamic parameters estimated from sounding data to do a comparative study of the structure and thermal properties, moisture, and static stability of the atmospheric boundary layer of inland, coastal, and marine sites to show consistent differences related to geographic factors. In vertical profiles of relative humidity, the intensity is higher in Dakar than in Niamey particularly in the core of the season. There are dry intrusions in the low levels at the beginning and end of the season in Dakar, which do not exist in Niamey. The mixing layer on the continent during the day can reach a height greater than 1100 m, and the inversion layer height can exceed 1700 m. Therefore, the maximum thickness of the boundary layer is observed on the continent during the day, while at night the marine boundary layer is the thickest. The diurnal evolution shows that the mixing layer thickness decreases during the night over the continent but increases at the coast and at sea. In the night at the continental site there is a division of the mixing layer with a consistent residual mixing layer. Continental boundary layer is more unstable during the day, while at night it is the marine boundary layer that is more unstable than the coastal and inland ones.

scholarly journals Statistical Comparative Study of the Trend and Variation of Meteorological Parameters in Abeokuta, South-West Nigeria

2019 ◽  
pp. 1-15
Author(s):  
M. A. Sodunke ◽  
M. O. Sulaimon ◽  
R. S. Sunmonu ◽  
A. Mabosanyinje ◽  
Y. B. Lawal ◽  
...  
Keyword(s):  
Wind Speed ◽  
Relative Humidity ◽  
Comparative Study ◽  
Air Temperature ◽  
Coefficient Of Variation ◽  
Vapour Pressure ◽  
Meteorological Parameters ◽  
Significance Level ◽  
Significant Difference ◽  
The Mean

This study focuses on the statistical comparative study of the trend and variation of meteorological parameters covering a 10 year period (2001-2010) in the capital and largest city of Ogun State, Abeokuta, southwest region of Nigeria. The analyzed meteorological parameters were: wind speed, vapour pressure, relative humidity, temperature, sunshine and rainfall covering 10 years. The calculated coefficient of variation (CV) for sunshine (22.78%), wind speed (21.55%), and rainfall (99.12%) is a proof of exceedance of variability of threshold of 10% while the CV calculated for  air temperature (5.74%), relative humidity (4.52%) and vapour pressure (5.22%) show no significant variability. Significance test of meteorological parameters’ trend reveals a notable reduction in the values of vapour pressure, air temperature and relative humidity. It is, however, difficult to argue for a well-defined change in most of the meteorological parameters based on the monthly time series analyses performed in this work. Only wind speed shows a statistically significant increasing trend during the period of observation at 1% significance level. The trend revealed by rainfall and sunshine is statistically not significant. ANOVA test of significant difference among meteorological parameters show a p-value (Sig.) of 0.000 is an indication of the significant difference in the analyzed mean monthly coefficient of variation for the meteorological parameters under study. The Tukey’s multiple pair comparisons test, however, show that there is a significant difference between the mean monthly CV of rainfall–sunshine, rainfall-vapour pressure, rainfall-wind speed, rainfall-air temperature and rainfall-relative humidity. At the significance level of 5%, the calculated mean monthly CV of rainfall is significantly different from the mean monthly CV of other climatic parameters.

scholarly journals Air change rate in ventilated attics – reality and input for simulations

2019 ◽  
Vol 282 ◽  
pp. 02073
Author(s):  
Eva B. Møller ◽  
Martin Morelli ◽  
Thor Hansen
Keyword(s):  
Relative Humidity ◽  
Comparative Study ◽  
Wind Direction ◽  
Single Family ◽  
Indoor Climate ◽  
Change Rate ◽  
Hygrothermal Simulation ◽  
Air Change Rate ◽  
Constant Rate ◽  
Current Guidelines

To remove moisture by ventilating constructions is a well-known strategy, used successfully in numerous facades and roofs. However, simulating ventilation is often difficult as convection in this case is in another dimension than what is usually in focus in 1D hygrothermal simulations. There are strategies for simulating ventilation in 1D programs assuming a fixed air change rate (ACH). Unfortunately, ACH in roofs highly depend on wind direction and speed, hence a constant rate is a gross simplification. The article describes a comparative study between simulations with a 1D hygrothermal simulation program (WUFI) and simulations with BSim, a program in which the indoor climate can be simulated in different zones, in this case the ventilated attic. Focus is the effect of ACH in the attic on temperature and relative humidity. Finally, measurements of ACH in attics of ten single-family houses are presented. These measurements show that average ACH measured over more than two weeks differ very much from house to house although the ventilation openings in all houses seemed to be in accordance with current guidelines. Even measurements of the same attic differ considerably from time to time. The paper discusses what implications this should have on simulations.

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