Neutrosophic data formation using Gaussian filter based costas coding for wireless communication systems

Outstanding advantages of OFDM helps high data rate communication systems such as Digital Video Broadcasting (DVB) and mobile worldwide interoperability for microwave access (mobile Wi-MAX). But, OFDM system grieves from grave issue of high PAPR

Juvenile whale shark, Rhinocodon typus (Smith) caught at Vizhinjam

The present report is based on the landing of a juvenile whale shark in live condition entangled in Chala vala (gill net for sardines), on 26.12.2002 at Vizhinjam fish landing center. This paper also describes the morphometric measurements (in cm) of the whale juvenile shark in detail

New Record of Satyrichthys milleri Kawai, 2013 (Peristediidae) From Gulf of Mannar, Bay of Bengal

A specimen of Satyrichthys milleri Kawai, 2013 with the standard length of 221 mm was collected from Tuticorin fishing harbour, south east coast of India on 23rd October 2014. It was collected by bottom trawlers at a depth ranges from 200-250 m. This is the first attempt to provide a detailed description of the species from the Gulf of Mannar. This record was compared with the first reported specimen in order to compare the external morphology with known specimen. The present study constitutes an extension of the known distributional range of this species from the Andaman to the Gulf of Mannar

Towed Acoustic Countermeasures for Defending Acoustic Homing Torpedoes

The growing torpedo threat to ships and submarines demands effective countermeasures for defence. Detection, classification and localisation of an attacking torpedo is the first step towards launching effective countermeasures. Studies are on the rise to use the existing sonar systems to detect torpedoes and subsequently use countermeasures. The use of towed array sonar systems for torpedo detection and acoustic counter measures are the most recent and not reported much in open literature. This paper presents a modular acoustic counter measure approach using towed decoy against acoustic homing torpedoes. Describes the technologies and algorithms required for different modes of towed decoy, which is effective against both active and passive acoustic homing torpedoes. Towed decoy signal generation schemes and their realisation using digital signal processing hardware are outlined in this paper

INTEND AND VIBRATION ANALYSIS OF G+10 RC BUILDING WITH BASE ISOLATION METHOD

Today's efforts to explore the insulating performance of the base of lead rubber bearings in standard construction and construction benefit from a study of the same standard and separate structure, designed in one of the highest seismic zones in India. Modeling for both the repaired base and the separate base structure is handled in a limited component of the stored structure (G + 10). LRB measurements are determined by using STADD PRO, which is also validated by using a Visual Basic (VB) script. The results of critical specimens consisting of variant in ground contrast, floor drift, floor cutting and precise investment in the separate structure are evaluated. Using the base insulation system at the base of the floor structure (G + 8), it was discovered that the structure was better protected; the theory that isolating the base was a perfect tool for tires over 6-7 floors. The optimal variation of the version is found to be essentially separated. Similarly, the floor of the floor and the floor were also detected at the minimum when it came to a structure separated from the base. Assessing earthquake movements on a web site is one of the most critical stages of a seismic pattern, as well as adjusting the frame. In the timeless techniques used in architectural assessment, it is assumed that movement in the degree of frame structure is equivalent to the movement of the complementary area of ​​the earth. This assumption is suitable only for tires or very solid rocks. For soft-based frameworks, structure activity generally differs from complementary area activity, as well as the induction element activated by adaptability to assist in the direct activity of the structure that is included

STUDY ON RC FRAMED STRUCTURE BY COMPARING INFILL WALLS AND SHEAR WALLS NUMERICAL METHOD

An improper configuration of masonry infill walls in RC frame may lead to short column effect on the columns, which is harmful to the seismic behavior of the structure. In this study, a bare frame and two single-stories, single-bay RC frames, partially infilled with masonry, were tested under cyclic loading. The failure mechanism and seismic performance of these partially infilled RC frames (with an infill height of 600 mm) with different types of connections were analysed. Based on the experiment, nonlinear finite element simulation and analysis were conducted to study the effects of the infill walls and connections. The results show that both mechanical performance and failure mode are affected by the infill height, the type of connection between the frame and the infill, and the ratio of shear bearing capacity of the frame column to that of the infill. For the masonry-infilled frame with rigid connection, the higher the infill wall is, the lower the shear bearing capacity ratio will be. Thus, the effect of the lateral constraint of the infill wall on the column increases, and the shear span ratio of the free segment of the column decreases, resulting in the short column effect. Based on the analysis results, a value of 2.0 is suggested for the critical shear bearing capacity ratio of the frame column to the infill wall. If the shear bearing capacity ratio is less than 2.0 and the shear span ratio of the column free segment is not more than 2.0, the short column effect will occur. For the infilled frame with flexible connection, both the lateral constraint from the wall to the column and the wall-frame interaction decrease; this reduces or prevents the short column effect. The conclusion can present guidance for the design and construction of masonry-infilled RC frame structure

Single-Reference Coupled Cluster Theory for Multi-Reference Problems

Coupled cluster (CC) theory is widely accepted as the most accurate and generally applicable approach in quantum chemistry. CC calculations are usually performed with single Slater-determinant references, e.g., canonical Hartree-Fock (HF) wavefunctions, though any single determinant can be used. This is an attractive feature because typical CC calculations are straightforward to apply, as there is no potentially ambiguous user input required. On the other hand, there can be concern that CC approximations give unreliable results when the reference determinant provides a poor description of the system of interest, i.e., when the HF or any other single determinant ground state has a relatively low weight in the full CI expansion. However, in many cases, the reported “failures” of CC can be attributed to an unfortunate choice of reference determinant, rather than intrinsic shortcomings of CC itself. This is connected to well-known effects like spin-contamination, wavefunction instability, and symmetry-breaking. In this contribution, a particularly difficult singlet/triplet splitting problem in two phenyldinitrene molecules is investigated, where CC with singles, doubles and perturbative triples [CCSD(T)] was reported to give poor results. This is analyzed by using different reference determinants for CCSD(T), as well as performing higher level CCSDT-3 and CCSDT calculations. We show that doubly electron attached and doubly ionized equation-of-motion (DEA/DIP-EOM) approaches are powerful alternatives for treating such systems. These are operationally single-determinant methods that adequately take the multi-reference nature of these molecules into account. Our results indicate that CC remains a powerful tool for describing systems with both static correlation and dynamic correlation, when pitfalls associated with the choice of the reference determinant are avoided

The role of lateral and medial posterior tibial slope in anterior cruciate ligament injuries: a case-control study

Background: The anterior cruciate ligament (ACL) is one of the major stabilisers of the knee   and is the most frequently involved ligament in knee injuries and related functional instability. The objective of the study was to compare the lateral posterior tibial slope (LPTS) and medial posterior tibial slope (MPTS) among those with ACL injury and those with the intact ligament.Methods: MRI of 65 (male-43, female-22) ACL injured and 65 (male-58, female-7) ACL intact knees were studied. Using RadiAnt DICOM viewer software, the slopes of both medial and LPTS s were measured. The statistical analysis was performed by IBM SPSS 25. Associations between various factors were assessed using the Chi square test for categorical variables and independent t test were done for quantitative variables. P<0.05 had been considered statistically significant.Results: Among cases the mean LPTS was 10.230±3.930 and mean MPTS was 6.610±3.490. Among controls, mean LPTS was 8.460±3.630, mean MPTS was 5.510±2.910. Case had a statistically significant (p=0.009) steeper LPTS than control population. MPTS of cases were steeper than the control population with no statistical significance (p=0.055).Conclusions: In this study, the LPTS was significantly increased among patients with ACL injury as compared with ligament-intact controls. LPTS measurements should be considered as a significant independent modifiable risk factor for ACL injury

The NINJA-2 catalog of hybrid post-Newtonian/numerical-relativity waveforms for non-precessing black-hole binaries

The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational wave data analysis communities. The purpose of NINJA is to study the sensitivity of existing gravitational-wave search and parameter-estimation algorithms using numerically generated waveforms, and to foster closer collaboration between the numerical relativity and data analysis communities. The first NINJA project used only a small number of injections of short numerical-relativity waveforms, which limited its ability to draw quantitative conclusions. The goal of the NINJA-2 project is to overcome these limitations with long post-Newtonian - numerical relativity hybrid waveforms, large numbers of injections, and the use of real detector data. We report on the submission requirements for the NINJA-2 project and the construction of the waveform catalog. Eight numerical relativity groups have contributed 63 hybrid waveforms consisting of a numerical portion modelling the late inspiral, merger, and ringdown stitched to a post-Newtonian portion modelling the early inspiral. We summarize the techniques used by each group in constructing their submissions. We also report on the procedures used to validate these submissions, including examination in the time and frequency domains and comparisons of waveforms from different groups against each other. These procedures have so far considered only the $(ell,m)=(2,2)$ mode. Based on these studies we judge that the hybrid waveforms are suitable for NINJA-2 studies. We note some of the plans for these investigations