Effect of chemical substitution in Rh17S15

Rh17S15 has recently been shown to be a strongly correlated superconductor with a transition temperature of 5.4 K. In order to understand the nature of strong correlations we study the effect of substitution of some of the Rh and S atoms by other elements such as Fe, Pd, Ir and Ni on the Rh side and Se on the S side in this work. We find that while substitution of Ir and Se lower the transition temperature considerably, that of Fe, Pd and Ni destroy superconductivity down to 1.5 K. The resistivity data in these doped samples show a minimum which is presumably disorder induced. A reduction of Tc is always accompanied by a reduction of electron correlations as deduced from heat capacity and magnetization data. Interestingly, the Fe doped sample shows some possible antiferromagnetic ordering at low temperatures.Comment: Published in Journal of Physics Condensed Matte

To mesh or not to mesh: flexible wireless indoor communication among mobile robots in industrial environments

Mobile robots such as automated guided vehicles become increasingly important in industry as they can greatly increase efficiency. For their operation such robots must rely on wireless communication, typically realized by connecting them to an existing enterprise network. In this paper we motivate that such an approach is not always economically viable or might result in performance issues. Therefore we propose a flexible and configurable mixed architecture that leverages on mesh capabilities whenever appropriate. Through experiments on a wireless testbed for a variety of scenarios, we analyse the impact of roaming, mobility and traffic separation and demonstrate the potential of our approach

An Analysis of Text-Based Authentication using Images in Banking System

The stipulation of electronic services, such as Transactional, Non-transactional, Financial institution administration, Management of multiple users having varying levels of authority and Transaction approval process, by banking organizations evolves and spreads with the introduction of enhanced communication technologies.  Though, this novel business occasion for the provision of banking products and services increases the need for security, especially due to the sensitive nature of the information exchanged.  The specific nature of Internet banking systems creates the necessity for focused facts on security issues to be able to successfully demeanor an assessment or security evaluation process.  More specifically, the information systems (IS) auditor should have the necessary technical and operational skills and knowledge to carry out the review of the technology employed and risks associated with Internet banking.  Following this requirement, this paper presents a novel authentication approach to provide security to the end users.  This proposed system, Analysis of Text-Based Authentication using Images in Banking System (ATBAIBS) provides great value in terms of convenience, customer intimacy, time saving, inexpensiveness and coherence in banking sectors

Working Architecture of Active Directory Applications in Libraries

Information Technology revolutionized era offer several tools for creating; organizing; storing and visualization of information in libraries in various perspectives. This paper highlights the application of Active Directory in library and information centers. In this context, Active Directory is an extensible directory service that enables managing and storing the detailed information about each network resources efficiently and also used to record the user access count as well as the duration of time spent by the user in the library. It is also used to maintain the institutional User restriction policies in the Server-Client architecture in libraries. This paper explains the steps to deploy the User access and reporting modules, credentials to the user by using the Windows Active Directory and also explores the technical aspect of working architecture, application and its limitation in the libraries

Vibration analysis and control in linear switched reluctance motor

Vibration is one of the major drawbacks of Linear Switched Reluctance Motor (LSRM). Two design techniques to reduce vibration in the LSRM are proposed. A detailed mathematical approach for calculating natural frequency has been outlined. Different techniques to predict the vibration frequencies are analyzed using ANSYS software. The analyzed structures are compared by using experimental and simulation results

Production of nanodrug for Bacillus cereus isolated from HIV positive patient using Mallotus philippensis

AbstractThe present investigation was aimed to synthesis of silver nanoparticles (AgNPs) using Mallotus philippensis leaf extract and their antibacterial potential against Bacillus cereus isolated from HIV positive patient. In this, UV- Visible spectroscopy showed the high peak of absorption band at 450 nm. Based on XRD analysis, face centered cubic structure and average size of the AgNPs was around 16 nm. FTIR spectroscopy study revealed the seventeen functional groups of the AgNPs was observed. The morphology of AgNPs was spherical, oval shapes and diameter of the particle size ranges between 9 and 24 nm was measured using transmission electron microscopy (TEM). In addition to these green synthesized AgNPs were found to express the higher efficacy in inhibiting the growth of Bacillus cereus (B. cereus) isolated from the HIV-positive patient

Modelling of Whale Optimization Algorithm with Deep Learning for Skin Cancer Diagnosis on Dermoscopic Images

Skin cancer diagnoses through the analysis of dermoscopy images have undergone a revolutionary change with the incorporation of advanced Machine Learning (ML) approaches. By using contemporary models such as Convolutional Neural Network (CNN) and Deep Learning (DL) structures, this technique allows automated and accurate detection of malignant and benign skin tumours. This model learns intricate patterns and features directly from the image, which allows them to distinguish between different types of skin tumours based on colour, texture, and structural characteristics. This manuscript presents the Whale Optimization Algorithm with Deep Learning for Skin Cancer Diagnoses on Dermoscopy Images (WOADL-SCDDI) technique. The objective of the WOADL-SCDDI method is to analyze the Dermoscopic images for classifying and recognizing skin tumours. In the proposed WOADL-SCDDI technique, median filtering-based preprocessing and SegNet-based segmentation are involved. In addition, the WOADL-SCDDI technique offers a ResNet50 model for feature extraction with WOA-based hyperparameter tuning. Finally, Quasi Recurrent Neural Network (QRNN) model can be applied for skin tumour recognition and classification process. A comprehensive set of simulations have been conducted to highlight the better efficiency of the WOADL-SCDDI technique. The accomplished outcomes portrayed the improvements of the WOADL-SCDDI method compared to existing DL models

Nuclear reaction studies of unstable nuclei using relativistic mean field formalisms in conjunction with Glauber model

We study nuclear reaction cross-sections for stable and unstable projectiles and targets within Glauber model, using densities obtained from various relativistic mean field formalisms. The calculated cross-sections are compared with the experimental data in some specific cases. We also evaluate the differential scattering cross-sections at several incident energies, and observe that the results found from various densities are similar at smaller scattering angles, whereas a systematic deviation is noticed at large angles. In general, these results agree fairly well with the experimental data.Comment: 9 pages, 7 figures, submitted to PR

User’s Satisfaction with Library Resources and Services in Polytechnic College Libraries in Coimbatore District

This present study is an investigation of user’s satisfaction with library resources and services in polytechnic college libraries in Coimbatore district. A survey research method was adopted to address the research questions. 150 questionnaires were distributed among final year graduate students, postgraduate students, research scholars and faculty members of polytechnic college libraries to collect relevant data regarding their satisfaction. 130 filled -in questionnaires were received and analyzed. On the basis of finding, some suggestions have included in this study to increase user’s satisfaction from libraries