Category Archives: 2021

LEARNING ASSISTANCE THROUGH MULTIMEDIA, SMART CLASSES AND E-LEARNING

This paper is about “Learning Assistance through Multimedia, Smart Classes and E-Learning”. In the field of education the latest technology of teaching & learning is now shifted on smart technologies (e.g., smart classes, multimedia, e-learning etc.). The usage of new techniques is now more prevalent in school as well as other colleges and Institutes. Now students are learning in a techno based environment. All these technology make classroom more interactive and interesting by transforming the traditional approach of learning. On our education system these techniques created a greater impact. The involvement of technology in the classroom cannot denied giving positive point to improving the quality of teaching and gives more various techniques. By the use of these technologies our education system process is changing. The new generation of these technologies allows interactive knowledge construction. The global acceptance of these technologies is increased because of rapidly emerging information based society. Government has also started implementing these technologies in government schools too. In pandemic situation these technologies are helping students to achieve their career goals.

Keywords: Multimedia, E-learning, Smart Classes.

AMHARIC TEXT CHUNKER USING CONDITIONAL RANDOM FIELDS

This paper introduces Amharic text chunker using conditional random fields. To get the optimal feature set of the chunker; the researchers’ conduct different experiments using different scenarios until a promising result obtained. In this study different sentences are collected from Amharic grammar books, new articles, magazines and news of Walta Information Center (WIC) for the training and testing datasets. Thus, these datasets were analyzed and tagged manually and used as a corpus for our model training and testing. The entire datasets were chunk tagged manually for the training dataset and approved by linguistic professionals. For the identification of the boundary of the phrases IOB2 chunk specification is selected and used in this study. The result of all experiments is reported with the maximum overall accuracy off 97.26%, with a window size of two on both sides, with their corresponding POS tag of each token and the worst performance achieved is 84.57%, with only the window size of one word on both the left and right sides.

Keywords: Amharic Text Chunker, Base Phrase Chunker, Conditional Random Fields, Clause Boundary Identification.

SILVER LINING AT THE CROSS ROADS: A LIVED EXPERIENCES OF

Background: The health care practitioner face challenges brought by technology. This include introduction of latest technology; it uses and the way to operate certain machines or devices. The nurse can lose their confidence in performing their duty if they are uncertain to some devices. There is no proper flow of work. The nurse must ensure that the patient must understand the effect of technology and its changes in care

Purpose: This study aims to know the lived experiences of nurses in caring patient with the use of latest technology and to know the lived experiences of nurses but aim to present to the patient technology and new devices that have to improve the quality of life for patients and healthcare professionals.

Methods: This study will use van Manen’s hermeneutic phenomenological approach to generate and analyze data to describe the experience of five nurses in relation to caring the patient. Van Manen’s approach is useful in having knowledge in a reflective situation and promote skill in certain relationship and situations that applied in nursing practice

Results: Technologies have been increasingly used to save and sustain human lives. Significance to knowing the person – a continuous process in which the nurse and the nursed four thematic categories structured the meaning of the experience: Technology in health, technology in caring, technological competency in caring and technological knowing formed thematic categories.

Conclusion: Technological competency as caring in nursing is the harmonious coexistence between technologies and caring in nursing. The illumination of nurses in caring with the use of technological competency is important in harmonization of concepts that places the practice of nursing within the context of modern healthcare and acknowledges that these concepts can co-exist. Understanding the nurses’ experiences in rendering the best care to the patient with the use of latest technology.

Keywords: Technology, Health, Caring, Nurse, Competency.

MANAGEMENT OF SEWAGE SLUDGE ASH AND FLY-ASH THROUGH

A laboratory experimental study was carried out to explore the possibility of using sewage sludge ash (SSA) and fly-ash (FA) with soil for improving the soil engineering properties that can be used in engineering applications. Primarily, four engineering properties tests: grain size distribution, proctor compaction, Atterberg limits, and unconfined compressive strengths (UCS) for several arbitrarily selected curing periods were conducted for soil samples mixed with SSA and FA together. The test results revealed that the mixing of soil with SSA-FA together improved the soil type and the soil engineering properties. The UCS increased substantially for both the soil samples mixed with 7.5%SSA-50%FA and 10%SSA-40%FA for a curing period of 28 days. Potentially 7.5 – 10% of SSA and 40 – 50% of FA can be utilized as a beneficial use when mixed with appropriate soil in combination of SSA-FA that would otherwise go to landfill. Overall, the application of SSA-FA mixing with appropriate soil type could be a viable alternative management route for both the wastes and provide a potential sustainable engineering construction material.

Keywords: Management of SSA and FA, Fly-ash, Sewage Sludge Ash, Soil Improvement, Engineering Properties.

DESIGN OF MODIFIED FRACTAL MICROSTRIP PATCH ANTENNA FOR MULTIBAND APPLICATIONS

In this paper a modified fractal microstrip patch antenna is designed and simulated. The three iterative forms of the designed antennas is considered. The designed antennas have the multiband wireless applications such as IEEE 802.11 a (5 GHz), b (2.4 GHz) g (2.4GHz) and n (2.4/5 GHz). The designed antennas also show the wide band behavior at different resonating frequencies. The radiation pattern of the designed antennas is omnidirectional in all the fractal geometries. The band width at the resonating frequency of 2.4 GHz is nearly   one GHz with a return loss of – 11 dB. The return loss achieved at 3.6 GHz is 13.5 dB and at 5 GHz is 16 dB. The antenna also shows the wide band behavior between 5 GHz and 6 GHz. The simulation of these antennas is done using HFSS.

Keywords: Fractal, Microstrip, Multiband Antenna.

ORTHONORMALIZATION AND RIESZ BASIS IN WAVELETS

After the discovery of wavelets, wavelets have great variety of applications but negative point of wavelets is no clean time-frequency density concept but the existence of orthonormal wavelets has good time-frequency localization. The orthonormal wavelets are set up to play a major role in wavelet theory and have a big variety of applications. Historically, the HAAR basis is the first orthonormal wavelet basis which was given long before the term “wavelet” was invented. In this paper, we discuss orthonormality condition of wavelets with Riesz basis.

Keywords: Wavelet, Riesz, Orthonormalization.

ARDUINO BASED WATER CONSUMPTION MONITORING SYSTEM WITH SMS NOTIFICATION

Arduino Based Water Consumption Monitoring System with SMS Notification is one of the new technologies to monitor the water consumption in domestic household, it’s displayed the real-time water consumption and the amount payable in digitally. The main focus of this study is for the awareness of the water consumer. The researcher focused its study on the problem of high-water consumption. The LCD shows the water consumption in household when the water start flowing through the water flow sensor, the sensor measures the rate and volume of water and the microcontroller (Arduino) calculate the data from the sensor and display it into LDC with the real-time water consumption. Once the consumer reached the flat rate it will send SMS notification with following details; flat rate, amount payable and as of date.

Keywords: Microcontroller, Technology, Water Flow Sensor, Water Consumption.

AN OVERVIEW OF LOW-IMPACT RENEWABLE THERMAL ENERGY TECHNOLOGIES

LIRE sources generally include small-scale hydro, sustainably harvested biomass, wind, solar, earth and waste energy. Examples of LIRE technologies include:

  • Wind-generated electricity;
  • Solar heating or solar-generated electricity (e.g., photovoltaic);
  • Biomass resources (if harvested and utilized in a sustainable manner);
  • Water velocity energy (e.g., run-of-river, free stream, tidal or wave turbines); and
  • Geothermal (earth) energy (including thermal energy in aquifers).

 

Keywords: Renewable Thermal Energy, Technology, Climate Change.

RESEARCH REGARDING THE USE IN ROAD TECHNIQUE OF BITUMINOUS SCHIST FROM ROMANIA

The use of bituminous schist is imposed by a significant increase in the price of bituminous binders, simultaneously with the gradual degradation of the road network in Romania, as well as with the increase of motorization and, therefore, the limitation of rehabilitation possibilities due to high costs. By incorporating bituminous schist into the asphalt mixture, a significant reduction in the amount of bitumen conventionally used is achieved, a binder that is currently only imported.

Also, given the progressive increase in demand for asphalt mixtures, and consequently for road bitumen, correlated with the quantitative and qualitative deficit of this essential material in road works, highlighted the importance of use in the preparation of bituminous mixtures of unconventional components, such as bituminous schist.

Considering that the only norm based on which the technological recipes for asphalt mixtures with bituminous sand are made underwent the last modifications in 1985, one of the specific objectives of the doctoral thesis was to update the technical specifications contained in the norm in order to streamline the process. associated with these mixtures and for a better national implementation of these practices. Without this long-awaited review, the use of this unconventional material would become more difficult, although it has both technical, economic and environmental benefits.

This report presents studies performed on experimental and theoretical activities, undertaken in order to acquire new knowledge on the specified materials, respectively the crushing sand used in the preparation of asphalt mixtures, based on observations, tests and interpretation of laboratory results, which, based on some already existing knowledge will lead to a significant improvement of the knowledge of applicability of these materials in a specific field, respectively that of construction materials.

Regarding the studies on bituminous schist, it is proposed to continue the research by preparing different types of technological recipes for asphalt mixtures where the classic sand is replaced with bituminous shale crushing sand and determining the physical-mechanical characteristics by laboratory tests.

Keywords: Bituminous Schist, Asphalt Mixtures, Bitumen.

THE PHYSICAL-MECHANICAL CHARACTERISTICS OF THE ASPHALT MIXTURES FOR BITUMINOUS COATINGS PREPARED WITH A HIGH BLAST FURNACE GRANULATED SLAG FILLER FROM THE LIBERTY GALATI PLANT, ROMANIA

Asphalt mixtures used for bituminous coatings consists of a homogeneous, compact mixture of natural aggregates agglomerated with bitumen. Replacing the natural filler with an artificial one, obtained as waste in the metallurgical industry, would lead to a saving of material and financial resources, being one of the methods of environmental conservation by conserving the relief, protecting localities from noise produced in stone quarries, reusing a waste material. The processing of granular blast furnace slag from Liberty Galati plant, country of Romania, into filler and their subsequent use in the preparation of asphalt mixtures, leads to obtaining favourable results on two of the most currently used types, AC16surf50/70 and AC22.4bin50/70.

The appreciation of the behaviour of the asphalt mixture prepared with blast furnace slag filler compared to a standard, leads to the conclusion that the mixture is correctly dimensioned and will withstand physical and mechanical factors.

Keywords: Asphalt Mixture, Blast Furnace Slag Filler.