نتایج جستجو برای: many drops make a lake
تعداد نتایج: 13529899 فیلتر نتایج به سال:
evaporation of micro-liter drops from solid surfaces at room condition is mainly governed by diffusion. therefore, there should be no difference between evaporation rate of sessile and pendant drops. however, some studies indicate a difference and explain the difference using buoyancy. the objective here is to reconcile the inconsistency in the literature. for that, first, by comparing two iden...
introduction urmia lake in the northwestern corner of iran is one of the largest permanent hyper saline lakes in the world and the largest lake in the middle east. it is extended as much as 140 km from north to south and is as wide as 85 km east to west during high water periods. qualitative and quantitative degradation of water resources is one of the major challenges in the way of sustainable...
the lake of urmia, with the length of 128-144km. and the width of 36.8- 50km., is located in north west of iran at the longitude of 38o ,20' and the latitude of 45 ,10. its area is about 6000km .and the average depth of water is about 6 meters reaching to 16 meters at some points. physical and chemical studies made, show that the water of the lake is colorless and has salty taste. its ph i...
In a survey of dust devil activity at a desert playa using continuous monitoring by a pressure logger, we have detected a number of pressure drops with complex structures: simple and symmetric drops make up only 25–30% of the total. In contrast to the simple, symmetric single-dip profiles expected for singlecell vertical vortices gliding past the pressure sensor, many profiles have an asymmetri...
Following the review by Latham et al. (Latham et al. 2008 Phil. Trans. R. Soc. A 366) of a strategy to reduce insolation by exploiting the Twomey effect, the present paper describes in outline the rationale and underlying engineering hardware that may bring the strategy from concept to operation. Wind-driven spray vessels will sail back and forth perpendicular to the local prevailing wind and r...
A door silently opens, activated by a video camera and a face recognition system. Computer access is granted by checking a fingerprint. Access to a security vault is allowed after an iris check. Are these scenes from the latest Hollywood spy thriller? Perhaps, but soon it could be in your office or on your desktop. Biometric authentication technologies such as face, finger, hand, iris and speak...
tennessee williams (1911-1983), the modern american dramatist, had his own unique school of dramaturgy. the dramas which he depicted are populated by characters who are lonely, desperate, in anxiety, alienated and in one word lost. they face challenges which they may overcome or not, through the choices they make. all these moods and conditions are clearly seen and explained in the theory of ex...
A wide variety of enhancements to the Internet architecture have been proposed over the past several years, many of which require attaching metadata, or state, to packets as they flow through the network. Examples of such extensions are IP traceback[10] and XCP[6]. The IP specification supports an “options” mechanism as an extensible way to couple state with packets. However, as we will show in...
Lake surface water temperatures are warming worldwide, raising concerns about the future integrity of valuable lake ecosystem services. In contrast to surface water temperatures, we know far less about what is happening to water temperature beneath the surface, where most organisms live. Moreover, we know little about which characteristics make lakes more or less sensitive to climate change and...
Capacity coordination, as the tactical level of hierarchical production planning in hybrid MTS/MTO systems, includes numerous important decisions. In this paper, two of these decisions i.e. finding the best strategy for the acceptance/rejection of incoming orders and determining orders’ due dates – are investigated. Also a simulation model is proposed to evaluate the efficiency of the presented...
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