نتایج جستجو برای: transfer of waters
تعداد نتایج: 21198475 فیلتر نتایج به سال:
Mixotrophs are important components of the bacterioplankton, phytoplankton, microzooplankton, and (sometimes) zooplankton in coastal and oceanic waters. Bacterivory among the phytoplankton may be important for alleviating inorganic nutrient stress and may increase primary production in oligotrophic waters. Mixotrophic phytoflagellates and dinoflagellates are often dominant components of the pla...
Commonly we see the diffuse attenuation coefficient of downwelling irradiance (Kd) expressed as a sum of the contributions of various constituents. We show here that, both theoretically and numerically, because Kd is an apparent optical property (AOP), this approach is not consistent with radiative transfer. We further advocate the application of models of Kd developed in past decades that are ...
چکیده: پژوهش حاضر به بررسی تطبیقی اعتماد اجتماعی در بین دبیران زن و مرد مقطع راهنمایی شهر ایلام می پردازد. امروزه در جوامع شاهد گسترش ارتباطات هستیم و با توجه به این که دامنه کنش های اجتماعی از حد روابط با آشنایان و دوستان فراتر رفته و به تعامل با کنشگران غربیه و نا آشنا گسترش یافته است، لزوم وجود اعتماد، بیش از پیش احساس می شود. اما با توجه به نقش دبیران در نهادهای آموزشی، در انتقال ارزش ها و...
The relationship between gas transfer velocity and wind speed was evaluated at low wind speeds by quantifying the rate of evasion of the deliberate tracer, SF6, from a small oligotrophic lake. Several possible relationships between gas transfer velocity and low wind speed were evaluated by using 1-min-averaged wind speeds as a measure of the instantaneous wind speed values. Gas transfer velocit...
استفاده از آب در کشاورزی با هر قیمتی نمی تواند مقبولیت و قابلیت بهره برداری را داشته باشد چراکه داشتن توجیه اقتصادی و بهینگی کارایی سرمایه از مسائل مهم در استفاده از آب می باشد. علاوه بر این بهره وری مناسب از آب در جهت افزایش درآمد ملی و تأمین مواد غذایی جامعه مسئله ایست که ضرورت دارد مورد توجه خاص قرار گیرد. بنابراین لازم است قیمت تمام شده آب برای انواع روشها مشخص شده و در رابطه با درآمد ناخال...
چکیده ندارد.
The goals of this study are to develop models of radiative transfer for optically shallow waters with benthic substrates colonized by submerged aquatic vegetation (SAV). The models will enable prediction of upward spectral radiation from the seafloor, thereby permitting (i) the use of optical remote sensing to retrieve bathymetry, (ii) the search for submerged objects of anthropogenic origin an...
In the absence of long term wave data collected at a coastal site of interest, the calculation of wave statistics at a coastal site requires various data sets to be assembled, including temporally and spatially long term representative directional wave data offshore of the site, as well as bathymetric and coastline data. Further, a suitable wave model is required, which is capable of modelling ...
Acidification remediation alternatives: exploring the temporal dimension with cost benefit analysis.
Acidification of soils and surface waters caused by acid deposition is still a major problem in southern Scandinavia, despite clear signs of recovery. Besides emission control, liming of lakes, streams, and wetlands is currently used to ameliorate acidification in Sweden. An alternative strategy is forest soil liming to restore the acidified upland soils from which much acidified runoff origina...
A Wallable Macro Device Keith Waters Robert A. Iannucci
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