Relative humidity

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  • Plants are continuously affected by a variety of environmental factors. Whereas biotic environmental factors are other organisms such as symbionts, parasites, pathogens, herbivores, and competitors, abiotic factors include parameters and resources which determine plant growth like temperature, relative humidity, light, availability of water, mineral nutrients, and CO 2 , as well as wind, ionizing radiation, or pollutants (Schulze et al. 2002 ) . The effect each abiotic factor has on the plant depends on its quantity or intensity.

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  • A study to measure indoor concentrations and emission rates of volatile organic compounds (VOCs), including formaldehyde, was conducted in a new, unoccupied manufactured house installed at the National Institute of Standards and Technology (NIST) campus. The house was instrumented to continuously monitor indoor temperature and relative humidity, heating and air conditioning system operation, and outdoor weather. It also was equipped with an automated tracer gas injection and detection system to estimate air change rates every 2 h.

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  • DOOSAN Engine applies anticorrosion oil for engine parts as follow (reference 1) and long term protection is the standard if there is no request. The engine and related parts have to be stored in clean and dry indoor space (over 20 degree Celsius, below 50% of relative humidity) from arrival at shipyard to installation.

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  • Based on the passage information, which of the following characterizes the northern part of the Central Andes’ high-altitude plateaus? (A) high relative humidity (B) fertile soil (C) a succession of agricultural zones (D) extremes in air temperature (E) an arid climate 37. Based only upon the information in the passage, which of the following is a characteristic of the Central Andean cordillera that clearly distinguishes it from the Northern Andean cordillera? (A) (B) (C) (D) (E) an arid climate a sparse human population wet forests a humid climate a dry season ...

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  • The ACS SYMPOSIUM SERIES was founded in 1974 to provide a medium for publishing symposia quickly in book form. The format of the SERIES parallels that of its predecessor, ADVANCES IN CHEMISTRY SERIES, except that in order to save time the papers are not typeset but are reproduced as they are sub- mitted by the authors in camera-ready form. As a further means of saving time, the papers are not edited or reviewed except by the symposium chairman, who becomes editor of the book.

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  • The conservation of glass, as of all artefacts, falls into two main categories: passive conservation, the control of the surrounding environment to prevent further deterioration; and active conservation, the treatment of artefacts to stabilize them.

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  • In laboratory conditions (relative humidity 50-70%, temperature 25 ± 2 ° C, 16 h light) monitoring studies of biological interactions between spiders catch prey Amblyseius cucumeris (Oudermans) and Orius bugs prey sauteri (Poppius) in an environment with lots of prey thrips thrips palmi (Karny)

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  • The current study was undertaken in a new manufactured house set up as a research facility. The plan was to conduct longitudinal measurements of VOC concentrations in the house along with measurements of key physical parameters including house air change rate, indoor and outdoor temperature and relative humidity, and wind conditions over a period of approximately one year. The primary objective was to evaluate changes in the emissions of formaldehyde and other VOCs in response to time, house air change rate, and the other parameters.

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  • Thermoregulation Heat loss occurs through five mechanisms: radiation (55–65% of heat loss), conduction (10–15% of heat loss, but much greater in cold water), convection (increased in the wind), respiration, and evaporation (which are affected by the ambient temperature and the relative humidity). The preoptic anterior hypothalamus normally orchestrates thermoregulation (Chap. 17). The immediate defense of thermoneutrality is via the autonomic nervous system, whereas delayed control is mediated by the endocrine system.

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  • The operating extremes defined in GR-1209 and GR-1221 are –40°C to +85°C and up to 95% relative humidity. GR-1209 and GR-1221 will typically be called out by North American service providers deploying passive optical networks. Some service providers may require their network to function at lower temperatures. In these cases, military specifications (MIL SPECs) requiring –55°C minimum operating temperatures may be called out.

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  • Helicopter aerodynamics is the branch of physics dealing with the forces and pressures exerted by air in motion. The atmosphere, the mass of air, which completely envelops the earth, is composed of varying and nonvarying constituents. The nonvarying constituents include oxygen (21%) and nitrogen (78%). The varying constituents include CO2, argon, hydrogen, helium, neon, krypton, and water vapor, which will vary from negligible amounts to approximately 4% by volume (100% relative humidity). Air is a fluid and is affected by changes in temperature, pressure, and humidity....

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  • Onewaytogetaroundthissituation istounderstandthewateruseofcropduringgrowth,as this period demands maximum input. With this information, the contribution/influence of energycropsonwaterresourcescanbeunderstood.Waterrequirementsofaplantspeciescan becalculatedbyestimatingtheminimumamountofwaterperhectareyield(orwater limited yield),whichisbasedonthepotentialyieldofthecropspeciesandtheavailabilityofwater. Wateruseofplants(evapotranspiration) isdependentontheplantspecies.

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  • I do not want to mislead you into thinking this book is about global warming and its part in climate change. My hope is that I can talk to you using mostly simple terms and common experiences about certain properties of water, how these are affecting us all, and where climate change has a role in ongoing problems. I will describe and explain some properties of water that you need to know to understand how water and air interact in a predictable way. Using this knowledge, you can gain an understanding of not only why and how global warming is affecting climate, but also be...

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  • The inverse relationship between coupon rate and price sensitivity results from the distribution of cash flows. Compared to a lower coupon bond, more of the total cash flow of a high coupon security will come from interest payments. Interest payments are received throughout the life of the bond, which means that, relative to a lower coupon bond, a higher coupon bond will have a higher proportion of its cash flow returned sooner. The earlier the cash flow occurs, the less price sensitive its cash flow is. As discussed above, longer maturity cash...

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  • Temporal variations in indoor VOC concentrations in the house likely were affected by changes in the sources with age and in the house parameters, principally air change rate, temperature and relative humidity. Air change rates in the house, which was operated at a single defined condition for all the sampling periods, were affected by wind speed and temperature conditions. At low wind speed conditions (wind speed

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  • Functions of an air conditioner: A. temperature control B. air conditioning C. odor removal D. germicidal treatment E. noise control F. air motion G. relative humidity II. Spaces: Auditoria Commercial offices 3. Apartments 4. School class rooms Motels Example: In an auditorium, the three most important functions of an air conditioner are to control the temperature, to remove odour and to control noise

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  • Chapter 14 - Gas-vapor mixtures and air-conditioning. After completing this chapter, students will be able to: Explain the meaning of the terms dry air and atmospheric air, define and calculate the specific and relative humidity of atmospheric air, calculate the dew-point temperature of atmospheric air, relate the adiabatic saturation temperature and wet-bulb temperatures of atmospheric air,...

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  • Natural groundwater quality changes start in the soil, where infiltrating rainfall dissolves carbon dioxide from biological activity in the soil to produce weak carbonic acid that may assist removal of soluble minerals from the underlying rocks, e.g. calcite cements. At the same time, soil organisms consume some of the oxygen that was dissolved in the rainfall. In temperate and humid climates with significant recharge, groundwater moves relatively quickly through the aquifer.

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  • Cheap land and relatively small acre yields characterize dry-farming. Consequently Iarger areas must be farmed for a given return than in humid farming, and the successful pursuit of dry-farming compels the adoption of methods that enable a man to do the largest amount of effective work with the smallest expenditure of energy.

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  • Immunization coverage has been regarded an one of the parameters for measuring the effe ctiveness of the health programme of organization to the plight of the displaced persons, particularly, children. It could be observed from the table (Table 2) that immunization coverage was substantial for meningitis (34.72%) followed by measles (20.65). Lafia town is naturally both humid and hot and so, the relatively high level of immunization with cerebrospinal meningitis antigen is a justifiable preventive action by the state government.

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