Physical Sciences and Engineering

Empirical overview of the relationship between job satisfaction and emotional maturity of secondary school teachers

The purpose of the study is to assess the relationship between job satisfaction and emotional maturity among secondary school teachers in Jammu Division. The paper consists of 240 sample. For the collection of data teachers job satisfaction by Nasrin and A. Annes and emotional maturity scale by investigator was used. Multistage probability sampling technique was used in the study. The main findings of the study showed that there was a significant positive relation between job satisfaction and emotional maturity among secondary school teachers.

More on weakly fuzzy δ-semi preirresolute mappings

The aim of this paper is to introduce and investigate the concept of a new class of mappings, called - fuzzy δ - semi preirresolute mappings in fuzzy topological space. Also in this paper some more results on weakly fuzzy δ-semi preirresolute mappings and fuzzy δ-semi preseparation axioms would be investigated in the light of the concepts already introduced on weakly fuzzy δ-semi preirresolute mappings and fuzzy δ-semi preseparation axioms by Mukherjee & Dhar (Mukherjee, 2010)(The Journal of Fuzzy Mathematics, 18(1) 2010, 209-216) in fuzzy topological space..

Designing the efficient dfig system back-to- back converter to replace lcl with llcl filter

This report gives the proper understanding of conceptual power control by using direct space vector control technique and its power quality improvement conducted with DFIG. A higher order passive power filter (LLCL-filter) for the back to back converter is becoming attractive for industrial applications due to the possibility to reduce the cost of the copper and the magnetic material.

Analysis of coordination and selectivity between protection devices of low voltage system (440vac)

This study aims to analyze the coordination and selectivity of the protection in a low voltage industrial electrical installation, so that the protection devices isolate and eliminate the fault quickly and selectively. To achieve this objective, a survey of the installed loads was carried out, a conference of fuse values and adjustment of the thermal relays, verification of the gauge of the cables connecting the respective loads and calculations of the short-circuit current through a software.

Low cost wireless data acquisition system for multisensor applications

Automated irrigation systems for agriculture purposes are becoming increasingly important and popular due to the scarcity of water resources and increasing demands of food production. Data acquisition is one of the most important aspects in the automated systems in agriculture sector. This paper presents a low cost wireless system for data acquisition. Sensor nodes and frame format of the sensor data are built using an Atmega328 microcontroller.

Variation of depth of cut on al7075-t6 and fly ash metal matrix composite in abrasive waterjet cutting

Aluminium metal matrix composite is advances in manufacturing of new composite production. Present work carries an investigation of variation of depth of cut on Al7075-T6 and Fly ash metal matrix composites (AMMCs) in Abrasive water jet cutting (AWJC). The aluminum metal matrix was casted in stir casting process with variation of fly ash percentage (15%, 20% and 25%). The four samples namely pure aluminum sample and the three AMMCs are cut with AWJC by variation of different parameters to attain the optimization of the cutting condition in each sample.

Increasing teacher teaching ability and teaching learning process at school

This research aims to describe and analyses about the increasing teacher teaching ability and teaching learning process quality at school through developing the teachers’ competences and the teacher educational background. The research method uses quantitative analyses is a descriptive analyses, correlation analyses and regression, quantitative analyses used in research is to find out relationship the teacher competence, teacher educational background toward teacher teaching ability and teaching learning process quality.

A review on characterization and application of fly ash zeolites

zeolites are aluminosiliceous minerals which are well-known for their porous crystal structures and chemical characteristics. Due to these capabilities, researchers have synthesized zeolites from substances containing alumina and silica, viz. kaolin, sediments, etc. In this context, fly ash has been perceived to be a prospective raw material for zeolitization since it can undergo geopolymerisation in an alkaline medium at specific conditions of temperature and pressure. Since several decades, naturally occurring zeolites have been used for animal husbandry and agri- and aqua-culture.

Green energy generation from speed breakers

In this technical research article, I am using a double sided rack and pinion arrangement to generate energy. Rack and Pinion arrangement is a mechanism which is used to convert the reciprocating motion to rotary motion. Whenever a vehicle would pass over the breaker, it would push it down. So rack will move downward and will rotate the gears. A gear train is used to increase the speed ratio at shaft of generator. Then the springs will push the breaker upside to its initial position and again it will rotate the gears. As the shaft of D.C. generator starts rotating, it produces electricity.

Security objectives based key management algorithm for device-to-device applications

D2D communications is the promising technology that is essential in the next generation of the mobile network. One of the basic restrictions of deploying this technique is the lack of security objectives which depends on user entities reliability and network capabilities; this issue imposes more expensive choices adopted by the network especially when user entities are out of coverage. Our work concentrated on designing the transmissions between the network and the out of coverage user entities to achieve a set of desired security requirements based on network policy applied by the SDN.