Session: 4B
نویسندگان
چکیده
ductance of layer. These dependencies showed that hybridization appears when sheet conductance of layer (σ) exceeds some critical value σcr), the magnitude of which changes in wide range and depends on material and plate orientation. For example, for aforementioned hybrid pair A0 SH0 in potassium niobate σcr = 10−3S. If σ < σcr modes are not coupled, i.e. their dispersion curves do not repulse. When σ = σcr there appears repulsion, the degree of which increases with increase of σ and reaches maximum at σ → ∞. This conclusion was also confirmed for hybrid modes of higher order propagating in lithium niobate plates. For example, a symmetric wave S1 and shear-horizontal wave SH2 form hybrid mode for parameter hf ≈ 6000m/s with σcr = 10−6S. It has been found that degree of repulsion of dispersion curves increases with increase of electromechanical coupling coefficient of waves. This work was supported by a grant from RFBR # 01-02-16266a.
منابع مشابه
Comparison of MCNP4C, 4B and 4A Monte Carlo codes when calculating electron therapy depth doses
ABSTRACT Background: accurate methods of radiation therapy dose calculation. There are different Monte Carlo codesfor simulation of photons, electrons and the coupled transport of electrons and photons. MCNPis a general purpose Monte Carlo code that can be used for electron, photon and coupledphoton-electron transport.Monte Carlo simulation of radiation transport is considered to be one of the ...
متن کاملتعیین الگوی پروتئینی و ایزوآنزیمی سروتیپهای 4aو 4b لیستریا مونوسیتوژن به روش و SDS-PAGE و MLEE
متن کامل
A new role for reticulon-4B/NOGO-B in the intestinal epithelial barrier function and inflammatory bowel disease.
Inflammatory bowel disease (IBD) is characterized by an impaired intestinal barrier function. We aimed to investigate the role of reticulon-4B (RTN-4B/NOGO-B), a structural protein of the endoplasmic reticulum, in intestinal barrier function and IBD. We used immunohistochemistry, confocal microscopy, real-time PCR, and Western blotting to study tissue distribution and expression levels of RTN-4...
متن کاملThe Role of TAF 4b in Regulating the Gonadotropin Gene FSHβ
TAF 4b was first discovered as a tissue-specific subunit of TFIID in human B cells. The development of infertility in TAF 4b knockdown mice revealed its role in gonadal development. Its knockdown results in an increase in FSHβ expression, and affects the expression of several regulatory proteins involved in the FSHβ regulation in the LβT2 gonadotrope cell line. However, TAF 4b is not associated...
متن کاملGenomic Characterization of Novel Listeria monocytogenes Serotype 4b Variant Strains
Over 90% of the human listeriosis cases are caused by Listeria monocytogenes serotypes 1/2a, 1/2b and 4b strains. As an alternative to antigen-antibody based serotyping, a PCR-based method for serogrouping has been developed and validated. In this communication, we report an in-depth analysis of five 4b variant strains, four clinical isolates from Australia and one environmental isolate from US...
متن کاملDetermination of haplotype variation and relationship between desirable agronomic traits and microsatellite alleles on chromosomes 4B and 7D in bread wheat
The aim of this study was to determine the haplotype groups and identify the specific alleles associated with desirable agronomic characteristics in bread wheat. For this purpose, 42 local bread wheat genotypes belong to Iran region and nine commercial cultivars along with Chinese Spring variety (reference genotype) were cultivated in the format of augmented design and evaluated based on their ...
متن کامل