نتایج جستجو برای: geomorphological shapes and forms
تعداد نتایج: 16849632 فیلتر نتایج به سال:
Abstract. After a brief introduction to several variational problems in the study of shapes of thin structures, we deal with variational problems on 2dimensional surface in 3-dimensional Euclidian space by using exterior differential forms and the moving frame method. The morphological problems of lipid bilayers and stabilities of cell membranes are also discussed. The key point is that the fir...
Summary: Half a century after the work of prehistorian G. Camps on “Iberomaurusian” site Rachgoun, located northwest coast Algeria, nothing has come to confirm, supplement or revisit conclusions this author, which still remain in force. In 2017, interest deposit was revived, with view relaunching prehistoric research Algerian north-west (Oran). contribution, we have approached subject, from geo...
This paper addresses the question of how close mammalian teeth are to ideal functional forms. An ‘ideal’ form is a morphology predicted to be the best functional shape according to information of the relationships between shape and function. Deviations from an ideal form are likely to indicate the presence of developmental or genetic constraints on form. Model tools were constructed to conform ...
Garra rufa is one of the most popular therapeutic and commercially important fish in ichthyotherapy. Otolith and scale morphology provide new and useful information for fish identification and classification. Left-right asteriscus and lapillus otoliths from juvenile and adult doctor fish, and the scales from 6 different regions of the juvenile and adult fish body have been examined in Kangal Ba...
Garra rufa is one of the most popular therapeutic and commercially important fish in ichthyotherapy. Otolith and scale morphology provide new and useful information for fish identification and classification. Left-right asteriscus and lapillus otoliths from juvenile and adult doctor fish, and the scales from 6 different regions of the juvenile and adult fish body have been examined in Kangal Ba...
the mountains as the other natural environment are the main purposes for nature based tourism such as sport tourism and have a finite capacity for recreation development which differs from one place to another and naturally causes different type of tourism’s development. therefore land suitability is very important before tourism planning. some charactristics like geomorphological, biological a...
Purpose: This study was done for determining of head dimensions and head shapes. The purpose of the present study was to determine head dimensions and shapes. Materials and Methods: This discriptive and cross sectional study was conducted on normal 17-20 year-old native Fars and Turkman ethnic groups in Gorgan. Martin saler scalope was used to measure cephalic length and width, then cephalic i...
in this project, 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid, was prepared by the reaction of trimellitic anhydride (tma) with 4,4?-methylenebis(3-chloro-2,6-diethylaniline) (mcdea). the novel poly(amide-imide) (pai) was synthesized from the reaction of 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with mcdea under green condition using ...
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