wildlife sancturies (w.s.) according to iucn classification need less conservation, but more development plan. lavandville w.s.: (less than 1000 ha, nw of iran) is located near caspian sea and !is important as habitats for waterfowl and other birds. physical resources (sands and oyster shells) of l.w.s. are exploited ; by local people. the area also provides outdoor .recreational apportunities ...

when two species of animals overlap geographically, the differences between them are accentuated in the zone of sympatry and weakened or lost entirely in the parts of their ranges outside this zone. The characters involved in this dual divergence-convergence pattern may be morphological, ecological, behavioral, or physiological. [The SCI® indicates that this paper has been cited in over 255 pub...

The central goal of this project is a deeper understanding of the dynamic adjustment of mobile sandy sediments to fluid forcing in and near the surf zone at small (1cm to 10m) and intermediate (10m to 100m) horizontal scales. The effort is motivated by the dual need to develop more realistic models of fluid-sediment interactions in the nearshore zone, and for suitable in situ measurement techni...

A fully-polarimetric compact range operating at 160 GHz has been developed for obtaining X-band RCS measurements on 1:16th scale model targets. The transceiver consists of a fast switching, stepped, CW, X-band synthesizer driving dual X16 transmit multiplier chains and dual X16 local oscillator multiplier chains. The system alternately transmits horizontal (H) and vertical (V) radiation while s...

Purpose: To update the accommodation mechanisms and propose a dual-wavelength, dual-function laser system for presbyopia glaucoma treatments.
 Study Design: Laser sclera softening (LSS) increased of presbyopic eyes.
 Place Duration Study: New Taipei City, Taiwan, between Jan., 2023 Feb., 2023.
 Methodology: Accommodation gain (AG) can be improved by: (i) thermal shrinkage scleral...

in this study, a numerical simulation using the cfd software, fluent, has been conducted to examine the effect of various shapes of the venturi component sections in order to find the optimum venturi specifications to increase the egr rate with minimum pressure loss at the part load operation range. the cfd results reveal that the venturi should be precisely optimized to introduce the required ...

‎We study dual integral equations which appear in formulation of the‎ ‎potential distribution of an electrified plate with mixed boundary‎ ‎conditions‎. ‎These equations will be converted to a system of‎ ‎singular integral equations with Cauchy type kernels‎. ‎Using‎ ‎Chebyshev polynomials‎, ‎we propose a method to approximate the‎ ‎solution of Cauchy type singular integral equation which will ...

The Global Positioning System (GPS) can be utilised in a wide range of deformation monitoring applications. During the past few years a methodology has been developed for processing data collected by GPS networks consisting of a mixed set of single-frequency and dual-frequency receivers. The strategy is to deploy a few permanent, ‘fiducial’ GPS stations with dual-frequency, geodetic-grade recei...

Limiting dome height (LDH) tests were used to evaluate the formability of laser butt welded blanks of the dual phase 980 steel in comparison with the base metal. Two different lasers were used: diode and Nd:YAG, giving a wide range of welding thermal cycles. A sharp decrease in LDH was observed in the welded specimens due to the formation of a softened zone in the outer heat affected zone. Soft...

Most of today’s digital designs, from small-scale digital block designs to system-on-chip (SoC) designs, are based on “synchronous” design principle. Clock is the most important issue in these designs. Frequency and phase synthesis is closely related to the clock generation. A frequency and phase synthesis technique based on phase-locked loop is proposed in [1] that delivers high performance, e...