نتایج جستجو برای: terminal section
تعداد نتایج: 305665 فیلتر نتایج به سال:
In [Bat92] Batyrev studied the cone of pseudo-effective divisors on Q-factorial terminal threefolds and its dual cone, the cone of nef curves. Given a uniruled Q-factorial terminal threefold X , and an ample divisor H on X , he showed that the effective threshold of H (see Definition 1.5 below) is a rational number. Using similar arguments, Fujita generalized this result to log terminal pairs (...
this thesis basically deals with the well-known notion of the bear-invariant of groups, which is the generalization of the schur multiplier of groups. in chapter two, section 2.1, we present an explicit formula for the bear-invariant of a direct product of cyclic groups with respect to nc, c>1. also in section 2.2, we caculate the baer-invatiant of a nilpotent product of cyclic groups wuth resp...
saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...
The sequence has been completed of the N-terminal 94 residues of the variable section of the Fd fragment of heavy chains from rabbit immunoglobulin G (IgG) of allotype As1. Most of the sequence of the same section from IgG of allotype Aa3 is also reported. These results, in conjunction with a substantial sequence of the variable region of allotype Aa2 reported elsewhere (Fleischman, 1971), show...
abstract : the purpose of this research is to study a bout multiple manifestations of poem music in hakim sanaee ghaznavi poems yherefore the first seetion of this book study and describes the complete works of this research about poem music love poem sanaee poem and this known and famous poets life and works the second section explained the external music of sanaee poems that for better u...
When designing the horn of ultrasonic transducer for rotary machining, traditional analytical method cannot consider complex assembly cross-section horn, resulting in a large final simulation error and design error. At same time, when diameter is too large, size back mass obtained by thin. This paper combines four terminal network finite element method, selects sandwich piezoelectric transducer...
Introduction: impaired mental health in post partum period could induce problems at communication and social performance. The present study was done in order to determine the influence of delivery method on mental health within postpartum period. Methods: In this cohort study, data were collected by SCL-90-R scale and demographic questionnaire on 227 nulliparous women (113 cesarean sectio...
آنزیم آلفا آمیلاز از سویه باکتریایی bacillus sp.kr8104 از 422 اسید آمینه تشکیل شده و 48 کیلو دالتون جرم دارد. این آنزیم یک آنزیم ترشحی میباشد که توسط این سویه به فضای خارج سلولی ترشح میشود. این آنزیم دارای دو فرم بالغ و نابالغ می باشد. آیا آنزیم آمیلاز به صورت نابالغ توسط باکتری ترشح میشود و سپس در محیط خارج سلولی بالغ میشود یا به صورت بالغ به خارج از سلول ترشح میشود؟ سوالی است که در مورد این آ...
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