Modal Analysis of Medium Calibre Barrels

The paper deals with modal analysis of the two different medium calibre barrel weapons. At present time PC software which are based on FEM modal analysis enable not only create a new design but also check old design how be up to standard on the fire accuracy. Also at this time is big boom to make new armour personal carriers which are equipped with the medium weapon calibre systems. Many of them use standard design of bedding the barrel to the weapon case, however also they are created in new weapon design. The modal analysis is powerful method to describe their vibration properties which have the cardinal influence on the accuracy of fire. The barrels were modelled as 3-D objects with next configuration with aim to obtain right results and their mutual comparison. Figure 1-3 show design of the solved barrels. Modal analysis was performed by LS-DYNA software using iterative Lanczos method. In Tables 1-5, the natural frequencies for these barrels and their modifications and their corresponding own shapes are listed. Next Figures 4, 7-10, 12 show the courses natural frequencies versus modes. In Figure 11 are shown the modal shapes of the modified cylindrical weapon barrel with the armature.

Creating a Monocrystalline Membrane via Etching and Sealing of Nanoholes Considering its Sealing Behavior

Based on silicon on insulator (SOI) technology [, a monocrystalline membrane is fabricated, in which a buried silicon dioxide layer in the silicon material is the sacrifice layer for the cavity. The membrane is a monocrystalline silicon top layer which contains nanoholes for creating the cavity in the buried oxide (BOX). To encapsulate the cavity the holes are sealed by using different techniques like non-stressed plasma-enhanced chemical vapour deposited (PECVD)-nitride and-oxide, thermal oxidation and evaporation of aluminum. To determine the sticking behavior of the membrane different sizes of membranes are fabricated and compared due to their sticking behavior. The experimental result shows that a membrane, having the size of 25 μm × 25 μm or below, has a perfect non-sticking behavior and can be used for further fabrication (cf. Fig. 8). For comparison, Figure 9 shows a membrane which delivers sticking behavior. The knowledge of this work can be widely used for several applications that need a cavity with a monocrystalline membrane like an absolute pressure sensor with a fully integrated CMOS-circuit on top of it [. This delivers a large variety of possibilities for novelty MEMS devices in different fields of research.

The Strategy To Translate Metaphor

Metaphor is called as part of comparison figure of speech. It compares two thing implisitly without using any comparison words such as, like, resemble to, etc. As a figurative expression, metaphor requires a special treatment to translate. The ability of the translator is very much influence to the result of metaphorical translation. He is not only have to empower himself with both source and target languages but also he better has a deep cultural understanding especially about metaphor. There are four types of metaphor on Ullmann version (1972: 213 - 216), namely: Antropomorfis etmaphor, animal metaphor, the abstract to concrete transfer and vise versa, sinaestetic metaphor. Furthermore, there are three criteria that should be fulfilled to value the quality of a translation viz the accuracy, the acceptability, and the text readability.Keywords: Translation; Strategy; Metaphor

The Strategy To Translate Metaphor

Metaphor is called as part of comparison figure of speech. It compares two thing implisitly without using any comparison words such as, like, resemble to, etc. As a figurative expression, metaphor requires a special treatment to translate. The ability of the translator is very much influence to the result of metaphorical translation. He is not only have to empower himself with both source and target languages but also he better has a deep cultural understanding especially about metaphor. There are four types of metaphor on Ullmann version (1972: 213 - 216), namely: Antropomorfis etmaphor, animal metaphor, the abstract to concrete transfer and vise versa, sinaestetic metaphor. Furthermore, there are three criteria that should be fulfilled to value the quality of a translation viz the accuracy, the acceptability, and the text readability.Keywords: Translation; Strategy; Metaphor

Apparent Relative Size in the Judgement of Apparent Distance

In experiment 1 judgements of the apparent distance of comparison figures (squares or triangles) were obtained under reduction conditions. These comparison figures were either shaped the same as or different from equidistant standard figures, and were half, equal to, or double the area of the standard figures. Apparent distance was found to be a linear function of the relative area of the comparison figure both in same-shape and different-shape stimulus pair conditions. In addition, apparent distance was found to be a function of perceived area, because in different-shape conditions triangles were generally seen to be closer than squares even when the real area of the standard and comparison was equal. The results of experiment 2 and 3 provide some evidence that the effect of different shapes of standard and comparison on apparent distance is due to the observers' perception of the height rather than the area of figures. The series of experiments shows that the traditional transactionalists' explanation of relative size as a cue for distance is inadequate.

A Developmental Study of form Discrimination in Pre-School Children

Using a matching-from-sample technique the discriminative ability of a group of pre-school children was tested twice, at mean ages 3–8 and 4–9, in relation to an independent test of their comprehension of the notion “same”. A sequence of three stages is described, for both shape and orientation discrimination; in the first, characterized by a large number of errors, the child appears to respond largely in terms of proximity of a comparison figure to the standard; in the second his responses reflect gross aspects of similarity between the figures in the comparison set, in that several matches are made to one standard all of which have certain attributes in common with it. Finally correct and unique choices are made. Attributes used in differentiating figures are described, and a number of theoretical and methodological problems are discussed.

Form Discrimination: Spatial Relationships between a Standard and Comparison Figure

This study investigated the relative difficulty with which 5-yr.-old children learn to discriminate between simultaneously presented standard and comparison figures in various relative positions and orientations. Figures in skewed relative position were easier to discriminate than those in aligned relative position; figures with an up-down orientation were easier than the same figures in right-left orientation. There were no significant differences in the number of errors made when the figures were placed so that the open sides of the figures faced each other, e.g., Group 1A, and the number of errors made when the figures were placed so that they were back to back, e.g., Group 1B.