نتایج جستجو برای: coasts

تعداد نتایج: 3587  

2014
Siew Cheng Lee Roslan Hashim Shervin Motamedi Ki-Il Song

Threats to beaches have accelerated the coastal destruction. In recent decades, geotextile tubes were used around the world to prevent coastal erosion, to encourage beach nourishment, and to assist mangrove rehabilitation. However, the applications of geotextile tube in sandy and muddy coasts have different concerns as the geological settings are different. Applications of geotextile tubes in s...

ژورنال: سلامت و محیط زیست 2014
ریاحی بختیاری, علیرضا, نعمتی ورنوسفادرانی, محمد, چو, جوکیانگ, گو, ژائویان,

Background and Objectives: Few investigations on polycyclic aromatic hydrocarbons (PAHs) in surface sediments have reported medium to high petrogenic contamination at the southwest coasts of the Caspian Sea. The aim of this study was to investigate distribution and potential sources of 16 PAH compounds in surface sediments of the southwest coasts of the Caspian Sea (Gillan province). Materials ...

2016
Yaprak Gürkan Ahsen Yüksek Leyla Tolun Süleyman Tugrul

In 7 different region which represent most used harbors, ports and fishing shelters in the Sea of Marmara and Black Sea in Turkey coasts. Ecological Quality Status was assesed by sampling soft-bottom macrozoobenthos from 22 stations in 2014.

2012
Andrew Crosby

We investigate the interaction of ocean vortex patches with boundaries via the elliptic moment model of Melander, Zabusky & Stysek [13], under which vortex patches are approximated as elliptic regions of uniform vorticity. The interaction with a straight boundary is shown to reduce to the problem of an ellipse in constant strain, as previously investigated by Kida [9]. Interactions with more co...

Journal: :Annals and Magazine of Natural History 1889

Journal: :محیط زیست طبیعی 0
محمد نعمتی ورنوسفادرانی دانشگاه تربیت مدرس علیرضا ریاحی بختیاری دانشگاه تربیت مدرس zhaoyan gu استاد، انستیتوی زمین شناسی و ژئوفیزیک، آکادمی علوم چین، پکن، چین. guoqiang chu . استادیار، انستیتوی زمین شناسی و ژئوفیزیک، آکادمی علوم چین، پکن، چین

to assess the sources, entry routes and degree of contamination of pah compounds in surface sediments of the southwestern caspian sea coasts (gillan province) total of 129 surface sediment samples from 28 rivers and 5 transect across the gillan province coasts (from astara to lahijan; 10, 20 and 50 m depth) were collected in the spring and summer of 2012. after extraction using soxhlet method, ...

  Analysis of the Characteristics of Sultry Days in Iran   Extended Abstract Sultry phenomenon occurs due to the combined effect of high temperature and humidity. Sultry intensity increases with increasing relative humidity and decreases with decreasing temperature. This phenomenon has a tremendous impact on comfort and other human activities. Various indices have been used to study this ph...

Journal: :caspian journal of environmental sciences 2008
v. gholami m. azodi e. taghvaye salimi

springs are the important water resources, which thier study is necessary in terms of their management and exploitation. in northern iran, the karst springs locate in the central alborz highlands and alluvial springs on the caspian southern coasts.the karst and alluvial springs discharge is variable because of different conditions in terms of aquifer, topography and precipitation .this study ha...

Journal: :Journal of the Franklin Institute 1887

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