of indoor building occupants (Great Britain Health and Safety features determine the rainfall distribution patterns over the the body as a result of metabolic activity. Melaka western part of Sarawak. Malaysia • FAQ • Solar radiation is closely related to the sunshine duration. From the Fig. Winds are generally This is because the thermal sensation is warm and almost hot. physical and chemical factors in the work environment could have a notable impact The site is highly valuable due to strategic location and high availability of spaces. patterns. divided into ... SUMMARY FACTORS AFFECTING EVAPORATION Factors Affecting Evaporation Evaporation Solar Radiation High High Wind High High Relative Humidity High (Water) ... University of Malaysia, Perlis; EN MISC - Fall 2019. As in the case of temperature, the diurnal variation of relative At very high relative humidity, harvested fruits maintain their nutritional quality, appearance, weight, and flavour, whilst reducing the rate at which wilting, ...
The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment.. It is known that irritation from dry eye can be improved by over the counter artificial tears because they wet and lubricate the eyes. The prescription eye drop, dexamethasone, can also improve eye irritation by decreasing the inflammation that develops in dry eye. Thus, the investigators hypothesize that the use of these conventional dry eye treatments will improve the eyes response to a low humidity environment. ...
The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment.. It is known that irritation from dry eye can be improved by over the counter artificial tears because they wet and lubricate the eyes. The prescription eye drop, dexamethasone, can also improve eye irritation by decreasing the inflammation that develops in dry eye. Thus, the investigators hypothesize that the use of these conventional dry eye treatments will improve the eyes response to a low humidity environment. ...
We are all able to tell whether an atmosphere is hot or cold the moment we enter it, but perceiving whether air has a low humidity is not as obvious to us. Our senses are not so refined as to feel the moisture content of the air we breathe into our lungs or which touches our skin.. However, the direct and indirect effects of dry air on our health are significant. Prolonged exposure to a low humidity can result in health problems for many organs (brain, kidneys, circulation, skin and eyes) and reduced resistance against chronic and acute airborne pollution, respiratory infections and allergies.. Maintaining the optimum humidity in a workplace improves employee health, which in turn reduces absenteeism and enhances productivity.. The Chartered Institute for Personnel, in its Absence Management report 2015, stated that minor illness, such as colds and flu, remain the most common cause of short-term illness. Improving a buildings humidity control is an effective and economic way to prevent this ...
Eck, T. F., B. Holben, J. Kim, A. Beyersdorf, M. Choi, S. Lee, J.-H. Koo, M. Giles, J. Schafer, A. Sinyuk, D. A. Peterson, J. S. Reid, A. Arola, I. Slutsker, A. Smirnov, M. Sorokin, J. Kraft, J. Crawford, B. E. Anderson, K. L. Thornhill, G. S. Diskin, S. Kim, and S. Park (2020), Influence of cloud, fog, and high relative humidity during pollution transport events in South Korea: Aerosol properties and PM2.5 variability, Atmos. Environ., 232, 117530, doi:10.1016/j.atmosenv.2020.117530 ...
An air or oil dryer module is provided to remove or reduce moisture from a lubricant using a pressurized air supply to inject dry air into a lubricant sump. As the “dry air” or air with a minimized moisture content, gathers moisture from the lubricant a relative humidity sensor detects an increase in air moisture. At a pre-determined relative humidity level, a fresh supply of air is added into the lubricant sump, purging the higher relative humidity level air from the sump. A method of reducing moisture content of a lubricant contained in an enclosed space is also disclosed and is performed by agitating the lubricant, providing a humidity sensor in fluid communication with the enclosed space, measuring the humidity of the enclosed space and comparing the humidity measurement with a pre-selected humidity level, introducing dry air into the enclosed space if the humidity level equals or exceeds the pre-selected humidity level, until the saturated humidity level is less than the pre-selected
Mixed halide Perovskite solar cells are commonly produced by depositing PbCl2 and CH3NH3I from a common solvent followed by thermal annealing, which in an up-scaled manufacturing process is likely to take place under ambient conditions. However, it has been reported that, similar to the effects of thermal annealing, ambient humidity also affects the crystallisation behaviour and subsequent growth of the Perovskite films. This implies that both of these factors must be accounted for in solar cell production. In this work, we report for the first time the correlation between the annealing time, relative humidity and device performance for inverted, mixed halide CH3NH3PbI(3-x)Clx Perovskite solar cells with active area ≈1 cm2. We find a trade-off between ambient humidity and the required annealing time to produce efficient solar cells, with low humidities needing longer annealing times and vice-versa. At around 20% RH, device performance depends relatively weakly on annealing time, but at higher ...
Thus, large quantity of dead organic matter accumulates in these areas, and this gives a rich humus and organic content to the soil. Since the latter amount is dependent on temperature, relative humidity is a function of both moisture content and temperature. Research suggests that the ideal humidity level in your home should be somewhere between 35% - 45%.Some sources suggest it can be as low as 30% or as high as 50%. Seasons. Humid definition, containing a high amount of water or water vapor; noticeably moist: humid air;a humid climate. Under high temperature, high humidity with sufficient rainfall and irrigation facilities, rice can be grown in any type of soil. Kodaikanal is 2100 m above sea level and located at 10.23° N 77.48° E. Kodaikanal has a population of 35021. it is difficult for the sweat to evaporate and in high humidity conditions we tend to sweat more. house-warming - tamil meaning of புதுமனை புகுவிழா. Contextual translation of high humidity into ...
Formaldehyde emissions from fiberglass and polyester filters used in building heating, ventilation, and air conditioning (HVAC) systems were measured in bench-scale tests using 10 and 17 cm2 coupons over 24 to 720 h periods. Experiments were performed at room temperature and four different relative humidity settings (20, 50, 65, and 80% RH). Two different air flow velocities across the filters were explored: 0.013 and 0.5 m/s. Fiberglass filters emitted between 20 and 1000 times more formaldehyde than polyester filters under similar RH and airflow conditions. Emissions increased markedly with increasing humidity, up to 10 mg/h-m2 at 80% RH. Formaldehyde emissions from fiberglass filters coated with tackifiers (impaction oils) were lower than those from uncoated fiberglass media, suggesting that hydrolysis of other polymeric constituents of the filter matrix, such as adhesives or binders was likely the main formaldehyde source. These laboratory results were further validated by performing a small ...
Pritha Ghosh, Randall Q. Snurr Northwestern University, Department of Chemical & Biological Engineering Activated carbons impregnated with metal salts are the current standard for adsorption and capture of toxic industrial chemicals (TICs). Metal-Organic Frameworks (MOFs) are an attractive alternative due to their chemically tunable nature and relative ease of synthesis. MOFs have been reported to outperform activated carbons in capturing TICs, especially MOFs containing open metal sites (Britt et al., PNAS 2008, 105, 11623). However, in the presence of ambient humidity, water molecules coordinate to the open metal sites, leading to a drastic decrease in the MOFs capacity to capture TICs (Grant Glover et al., Chem. Eng. Sci. 2011, 66, 163). Since TICs may need to be captured under humid conditions (such as in a gas mask), it is important to assess adsorption of TICs in MOFs with water vapor present. In this work, we model the adsorption of TICs under humid conditions in a set of hydrophobic ...
Nowadays PEMFC with hydrogen fuel has developed to commercialize to replace the conventional machine. Several limitations in PEMFC commercialization are its low efficiency, viability of hydrogen fuel supply and problem of controlling fuel and water as reaction products. Effective effort to increase efficiency and water management include elevating temperature of PEMFC operation near water boiling point to increase energy produced, prevent water flooding, enhanced cooling efficiency and also the possibility to use hydrogen and air under lower humidity in order to make simples PEMFC design. But at elevated temperature and low relative humidity, Nafion membrane that during the time still used as electrolyte will shrink and at high humidity and high temperature above 80oC membrane will swell and irreversibility decay occur. Membrane shrinking and swelling will reduce PEMFC performance. The objective of this study is to investigate the usage of Nafion-SiO2-PWA nanocomposite membrane NS10W, NS15W and ...
Using the guinea pig as a model host, we show that aerosol spread of influenza virus is dependent upon both ambient relative humidity and temperature. Twenty experiments performed at relative humidities from 20% to 80% and 5°C, 20°C, or 30°C indicated that both cold and dry conditions favor transmission. The relationship between transmission via aerosols and relative humidity at 20°C is similar to that previously reported for the stability of influenza viruses (except at high relative humidity, 80%), implying that the effects of humidity act largely at the level of the virus particle. For infected guinea pigs housed at 5°C, the duration of peak shedding was approximately 40 h longer than that of animals housed at 20°C; this increased shedding likely accounts for the enhanced transmission seen at 5°C. To investigate the mechanism permitting prolonged viral growth, expression levels in the upper respiratory tract of several innate immune mediators were determined. Innate responses proved to ...
Poor humidity levels can lead to many problems. Here you can find info on ideal indoor humidity levels and what you can do to maintain them.
Learn more about Higher Indoor Humidity Levels Might Slow Flus Spread at Memorial Hospital Higher Indoor Humidity Levels Might Slow Flus Spread Study...
Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost sensors can be used. However, it is well-known that many factors influence their results. For low-cost Particulate Matter (PM) sensors, high relative humidity can have a significant impact on data quality. In order to eliminate or reduce the impact of high relative humidity on the results obtained from low-cost PM sensors, a low-cost dryer was developed and its effectiveness was investigated. For this purpose, a test chamber was designed, and low-cost PM sensors as well as professional reference devices were installed. A vaporizer regulated the humid conditions in the test chamber. The low-cost dryer heated the sample air with a manually adjustable intensity depending on the voltage. Different voltages were tested to find the optimum one with least energy
11.10.2020. Global coding and marking specialists, DataLase, has produced a water based flexographic (WBF) high humidity coating for use in the paper and corrugated printing industries. DataLase WBF High Humidity Coating is particularly relevant where high humidity is a factor in post-print processes, or lithographic presses equipped with water based coating units.. Developed as an alternative to print & apply labelling and high resolution inkjet printing of shipping data onto boxes (e.g. GS1 compliant barcodes, variable price/weight information, variable contents/ingredients data), DataLase WBF High Humidity Coating addresses the challenges faced by brand owners and retailers seeking novel solutions to their mandatory shipping data needs. The coating formulations have been optimised to provide unsurpassed product stability and excellent flow properties in geographical areas where high humidity is present.. Used in combination with an appropriate CO₂ laser marking system, DataLase WBF High ...
2015-09-07. In assessing agrometeorological conditions by Selianinovo hydrothermal coefficient (HTC) values ​​very dry (HTC ,0.5) still remains the most central parts of the country. Anykščiai, Biržai, Elektrenai, Jonava and Jurbarkas, Kaisiadorys, Kaunas, Kėdainiai, Marijampolė Prienai, Šiauliai, Šilutė and Cesis districts prolonged dry periods reached the dangerous phenomenon of the threshold (arid period of active vegetation present weather phenomena considered when HTC ,0 5 lasts 15 days or more). Alytus, Druskininkai, Ignalina, Kelme, Raseiniai, Trakai municipalities - dry (HTC 0.5-0.6). Arid (HTC 0.6-0.7), mainly in the southern regions of the country. A slight lack of moisture (HTK from 0.8 to 0.9) recorded Akmenės, Panevezys, Šalčininkai, Telsiai, Ukmerge and Utena districts. The north-eastern and north-western fringes of the country, as well as Molėtų Kalvarijos and humidity conditions are optimal (HTC 1.0-1.5), and Plunge and Kretinga districts due to extreme ...
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 ...
AsianProducts Temperature-Humidity Chamber directory - It includes sources from Temperature-Humidity Chamber manufacturers and Temperature-Humidity Chamber suppliers, and those qualified Temperature-Humidity Chamber manufacturer are extensively from china, Taiwan, Hong Kong.
Indoor Air Quality is an increasing concern in the world today. The mere presence of people in a building or residence can significantly alter indoor air quality. Relative humidity over the range of normal indoor temperatures (66 - 80 degrees Farenheit) has been linked both directly and indirectly to various health and structural problems. The purpose of this project was to discover whether residential dwellings might benefit from an indoor humidification system. The project consisted of the deployment of three separate sensor networks consisting of 12 tmote sky modules manufactured by the Moteiv corporation, each equipped with a temperature and humidity sensor manufactured by Sensirion. Each tmote sky module continuously transmitted the raw data readings to a base station to be processed. The lifetime of each network was approximately four days of continuous data transmission. The results verified the hypothesis that relative humidity levels have a significant affect on the indoor environment and
After another comfortable start to the day, the 90s return to the forecast this afternoon with light winds and continued low humidity.
Thirsty blowflies whose tarsi come into contact with water will respond with proboscis extension. When flies were exposed to high or low relative humidities (RH) prior to testing, the tarsal taste thresholds to sucrose in flies that were unresponsive to water alone increased or decreased, respectively. Evidently, thirst can also be subthreshold and recognizable only as a change in threshold to aqueous sucrose.. Thresholds to sucrose and fructose, which were in the millimolar range in 3-day-old adult flies held at 55-70% RH prior to testing, fell significantly after the flies had been held at low humidity (13-20% RH) for several hours. There was no low-humidity-dependent drop in threshold with galactose or xylose, sugars to which flies normally have thresholds in the 102mmoll−1 range.. Flies held at low relative humidity exhibited increased tarsal thresholds to sucrose when they were injected with water or were allowed to drink water adlibitum. When multiple injections of water were given, ...
With the humidity dropping and the winds blowing, there could be trouble ahead for firefighters working to tame the Wine Country fires. The North Bay fires have been fueled partly by dry air, and forecasters at the National Weather Service said that could get worse Saturday night and Sunday morning. Relative humidity levels are projected to plunge into the single digits in higher elevations of Sonoma and Napa counties. Humidity levels at lower elevations are expected to stay in the teens to 20 percent.
Any area with high humidity is susceptible to black mold problems. A relative humidity greater than 55 percent is enough to support the growth of black mold. Indoors, humidity levels can fluctuate drastically due to the effects of HVAC systems.
Dry air continues to slide down into Acadiana creating another comfortable start to the day with temperatures in the upper 60s and lower 70s.
Image: Michal Marcol / FreeDigitalPhotos.net). Teddington, UK -?? A two day training course on humidity measurement and calibration, covering measurement techniques, terms and definitions;,calculations, traceability and calibration and hands-on laboratory sessions.. The course will open with an introductory session on humidity terms and definitions followed by talks that will cover the necessary background to the subject with full course notes provided. A tour of the NPL Humidity laboratory, plus hands-on sessions, will give a practical introduction to humidity measurement and calibration techniques.. This will be reinforced with talks on uncertainties, traceability and accreditation.. To view the programme, click here for the current/most recent course flyer.. All participants will receive a certificate of attendance.. This course is suitable for technicians and technical managers closely concerned with humidity measurement and calibration.. The course will be given by members of the NPL ...
Improved water insensitive bonded perlite structural materials are produced by combining expanded perlite with an aqueous solution of an alkali metal silicate and thereafter molding the mixture into a desired shape and curing the molded mixture under closely controlled temperature and humidity conditions. The aqueous solution of alkali metal silicate will be either a sodium silicate solution or a potassium silicate solution. The temperature and humidity conditions for curing the molded perlite and alkali metal silicate mixture are from about 180.degree. F. to about 225.degree. F. and from about 30% to about 60% relative humidity. By carrying out the curing process under the closely controlled temperature and relative humidity conditions, a water insoluble crystalline reaction product is formed between the alkali metal silicate and the reactive expanded perlite.
TY - JOUR. T1 - Friction and wear of monolithic and glass-fiber reinforced PA66 in humid conditions. AU - Kim, J. W.. AU - Jang, Ho. AU - Woo Kim, Jin. PY - 2014/1/15. Y1 - 2014/1/15. N2 - Effect of water absorption on friction and wear of polyamides, namely monolithic polyamide 66 (PA66) and PA66 composite with 30. wt% of short glass fibers, was investigated using a block-on-ring-type tribotester. Monolithic PA66 showed high wear rates after water absorption because of softening by the absorbed water molecules and increased interfacial adhesion on the steel counter surface. Degraded wear characteristics of monolithic PA66 by chain scission of the amide functional group by water molecules were substantially improved by short glass-fiber reinforcement. The improved friction and wear characteristics were attributed to contact plateaus produced during sliding, which were held by condensed glass fibers, suggesting possible applications of PA66 in a humid environment by reinforcing it with short ...
While cryogen spray cooling (CSC) can protect skin epidermis from non-specific thermal damage, spray droplets in-flight and the cryogen/frost layer that forms on the skin surface may pose a potential problem for laser light attenuation due to absorption and/or scattering. Employing a hand piece expressly designed for concurrent light and cryogen delivery on skin phantoms, we studied the effect of relative humidity on light transmittance during and after spray cooling. Cryogen spurts were aimed at a microscope glass slide and a deformable agar phantom preheated at 32°C. According to our results, relative humidity plays a very important role in the light transmission during CSC. Light absorption and/or scattering by the spray droplets in-flight and cryogen/frost layer formation at the surface induced light attenuation values of up to 45%. The higher the relative humidity is, the lower the light transmission ...
TY - JOUR. T1 - Scaling behavior in daily air humidity fluctuations. AU - Vattay, Gábor. AU - Harnos, Andrea. PY - 1994. Y1 - 1994. N2 - We show that the daily average air humidity fluctuations exhibit nontrivial 1/fα behavior which is different from the spectral properties of other meteorological quantities. This feature and the fractal spatial structure found in clouds make is plausible to regard air humidity fluctuations as a manifestation of self-organized criticality. We give arguments why the dynamics in air humidity can be similar to those in sandpile models of self-organized criticality.. AB - We show that the daily average air humidity fluctuations exhibit nontrivial 1/fα behavior which is different from the spectral properties of other meteorological quantities. This feature and the fractal spatial structure found in clouds make is plausible to regard air humidity fluctuations as a manifestation of self-organized criticality. We give arguments why the dynamics in air humidity can be ...
STUDY OF THE INFLUENCING NATURE OF METEOROLOGICAL FACTORS AIR TEMPERATURE AND RELATIVE HUMIDITY ON THE EXHALATION PROCESS OF 222RN/220RN GASES AT MAT FAULT
16 subjects were monitored in different humidity levels to assess their physical responses to the environment and how it made them feel.
16 subjects were monitored in different humidity levels to assess their physical responses to the environment and how it made them feel.
Aims: To develop infectious (live/dead) enveloped virus test indicators and response surface methodology (RSM) models that evaluate survival of an enveloped ribonucleic acid (RNA) virus on contaminated aircraft materials after exposure to hot, humid air (HHA).Methods and Results: Enveloped RNA bacteriophage Phi6 (Φ6) was dried on wiring insulation, aircraft performance coating (APC), polypropylene, and nylon at ≥ 8 log10 plaque-forming units (PFU) test coupon−1. Only 2.4 log10 inactivation was measured on APC at 70°Celsius (°C), 5% relative humidity (RH) after 24 h. In contrast, HHA RSM models showed a 90% probability of a 7 log10 inactivation at ≥63°C, 90% RH after 1 h, and decontamination kinetics were similar across different materials. HHA decontamination of C-130 and C-17 aircraft showed >7 log10 and ≥5.9 log10 inactivation of enveloped virus on 100 and 110 test indicators, respectively, with a 1-h treatment, excluding ramp-up and ramp-down times.Conclusions: Enveloped RNA virus test
To determine the effect of humidity on the levels of the mouse allergen Mus m 1, an experimental animal room was constructed to control environmental variables. The sex, strain, age, and number of mice was constant in the room, so that the average daily production of Mus m 1 would not vary greatly. Six different levels of relative humidity from 15% to 65% were maintained for a minimum of a week each. Daily collections of airborne particulates were eluted from filters and Mus m 1 content measured by immunological assay. Increasing relative humidity caused a decrease in Mus m 1 levels from a high of 3 ng/m3 at 15% humidity to a low of 0.5 ng/m3 at 65% humidity. Thus, reduction of airborne allergen levels can be achieved by careful attention to humidity control, especially during the winter heating season when humidity levels may be low. This experimental room can be used to measure the effect of other variables such as ventilation rate, caging, bedding, and work practices on the levels of
The Eos® Complete Humidity Controller allows you to accurately and efficiently control the humidity levels in your garden. Set your desired humidity level and the controller will activate and deactivate humidifying and dehumidifying equipment appropriately. This controller also features low temperature protection in the event that achieving the desired humidity level results in an undesirable temperature. This Eos unit features a 15 ft remote sensors that monitors your temperature and humidity levels. The easy to use analog style interface makes programming the controller a simple task. Day and night settings allow for accurate environmental control ...
What is the correct humidity level for hatching Call duck eggs? I am a little confused.[IMG] Im going to be putting eggs in the incubator pretty soon....
Human beings spend close to 90% of their lives indoors. So why not start maintaining proper humidity levels to help keep your home comfortable? Learn more from the Air Comfort blog!
Humidity inside the home can create a long list of issues. Inside the home you want your humidity level to be somewhere between 30-50%.
People manage home humidity levels in several ways, including properly ventilating clothes dryers and washers outside, running fans to have air continually circulating, operating whole-house...
Question - Coughing, sleeplessness, did not improve after reducing humidity level. Do you know what it could be?. Ask a Doctor about diagnosis, treatment and medication for Persistant cough, Ask an ENT Specialist
China Temperature And Humidity Measurement manufacturers - Select 2017 high quality Temperature And Humidity Measurement products in best price from certified Chinese High Temperature Gauge manufacturers, Water Temperature Gauge suppliers, wholesalers and factory on Made-in-China.com
The humidifier is the part that will maintain the humidity level in your humidor. Most of the humidors comes with so called green foam humidification systems. While its the most commun humidification system, it works only one way by increasing humidity level but will not lower humidity if necessary. We recommend to update to the latest technologies like the crystals, gel or beads that work both ways and really help maintain 70% humidity in your humidor ...
Adsorption plays a key role in the volatile organic compound (VOC) photocatalytic oxidation performance and kinetic behavior. It can lead to VOC mixture sequential treatment or even photocatalyst deactivation. The aim of this work is to determine qualitative and quantitative data regarding VOC adsorption on P25 TiO2. Acetaldehyde and acetic acid adsorption on TiO2 have been studied under both dry and humid conditions. Three experimental methods have been used: breakthrough curves, room temperature desorptions and temperature-programmed desorptions. First, acetaldehyde and acetic acid adsorptions are studied individually. Dry and humid experiments provide complementary pieces of information to identify the adsorption modes, in accordance with literature. The Langmuir model parameters (adsorption constant (K), reversible and irreversible maximum adsorbed amounts (q(m,rev) and q(m,irr)), and adsorption enthalpy Delta H) are determined for each VOC. Based on experimental results, a model for acetaldehyde
Development of a humidity measurement infrastructure will provide the tools needed to improve efficiency and quality in industry. Humidity is one of the most important properties affecting everyday processes from indoor ventilation to the storage of food products and pharmaceuticals. As a result, the ability to accurately measure humidity is vital to increasing efficiency, competiveness and providing quality assurance across a huge variety of European industries. This project has developed new measurement methods and shares best practice with emerging NMIs by providing an infrastructure for reliable, traceable humidity measurements across Europe. A particular focus has been placed on capabilities to meet the needs of each countrys key industries to allow them to gain a competitive edge. Strategies for the continued development of humidity measurement capabilities will be developed, to prepare the future metrological landscape and ensure European industry has access to the facilities it needs ...
Forearm skin blood flow has often been adopted in environmental studies to represent skin blood flow (SKBF) distribution to the whole body. In part, this can be attributed to the use of venous occlusion plethysmography which is commonly performed on the arm. However, more recently the use of non-invasive laser Doppler flowmetry has been employed to measure SKBF. Pre-pubertal children (5 female, 6 male; mean age 9.5 yr, range 7-12 yr) undertook a 45 min lower body intermittent exercise protocol under hot and humid conditions (32.5 ± 0.1 C, 70.6 ± 0.8% r.h.). The protocol included 10 min seated rest followed by three bouts of cycling separated by 5 min rest. Each exercise bout consisted of 5 min continuous cycling at 60% HRMAX followed by three 20 s sprints. Laser Doppler SKBF assessments were taken after each workload at four sites including forehead, back, forearm and medial calf. SKBF significantly increased after each of the workloads when compared to resting levels (p,0.01). Skin blood flow ...
Question - Trouble breathing in hot and humid conditions. Have pulmonary fibrosis. What is going on? . Ask a Doctor about diagnosis, treatment and medication for Pulmonary fibrosis, Ask an ENT Specialist
Xikar Crystal Humidifiers are reliable and effective alternatives to traditional humidification devices. Each Crystal Humidifier is prefilled upon arrival. Simply unwrap the humidifier and place in your humidor. A slow and steady 70% humidity level is dispersed. Clear polycarbonate cases house gel crystals which can saturate 450 times their weight with propylene glycol solution. A magnetic attachment firmly affixes the humidifier to the inner lid of your humidor. The Crystal 50 is designed to maintain as many as 50 cigars in a volume of 500 cubic inches at 70% humidity, while the Crystal 100 will handle up to 100 cigars in a volume of 850 cubic inches at 70% humidity. Recharge the humidifier with propylene glycol solution. Durations between refills may vary depending on temperature and quantity of cigars. Relieve your humidification worries with Xikar today!
This paper presents the main findings of the effect of indoor humidity on occupants thermal comfort in the humid tropics of Malaysia. An extensive field investigation was carried out in Kota Kinabalu city and the surrounding areas, located in East Malaysia. A total of 890 individuals were asked to complete a questionnaire. Measured indoor climates were also recorded. The survey was designed as cross sectional data collection. The present investigation found that the occupants were thermally comfortable at wide relative humidity range. The mean relative humidity corresponding to the optimum comfort temperature was close to 73%. Regression models failed to predict accurately the effect of relative humidity on occupants thermal perceptions. In addition, a quadratic regression model was developed for the prediction of the mean indoor relative humidity based on indoor temperature. The suggested regression model can be used for an approximate prediction of indoor relative humidity when required.
Fresh-cut produce is one of the fastest growing convenience food industries in history. Fresh-cut fruits and vegetables offer a number of advantages over whole produce, including cost control, waste reduction, variety selection, consistent quality and safety, and less in-store labor (Luo 2007). However, the fresh-cut industry and the evolving processes used to sustain freshness face considerable challenges.. The main problem that makes fresh-cut fruit a highly perishable product is the microbial growth caused by the accumulation of leaked juice rich in nutrients in the bottom of containers (Brecht 2006). Operations such as peeling, cutting, or slicing greatly increase tissue damage of fresh-cut fruits, causing the release of intracellular liquids, and consequently increase microbial growth, which is the principal deteriorative and safety problem involved in the fresh-cut industry (Brecht 2006). Additionally, as a response/consequence to wounding during processing and microbial growth during ...