International Journal of Trend in Scientific Research and Development

We want to introduce a new and effective method to find the maximum value and minimum value of a function in this paper. The proposed method is very short in calculation and easy compared with existing methods. The proposed method is illustrated by the examples. 

by Nyein Min Oo ""Easy Finding Extreme Values of a Function"" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, 

This paper presents the Online Examination System OES for testing English Grammar. The OES is an online test system that allows user to take online tests. The OES is to be used for only English Grammar Multiple Choice Question online test by schools, colleges, other universities. The system is designed currently for three English Grammar levels. They are basic level and advance level. The administrator is to add new question into the system with three options and one right answer. User can login with by using registered user email and password to take exam and view result. On choosing a level test, user can answer all the questions and tick the answers within the time limit. After the online English Grammar examination finished, the system goes to the result page and show user's scores to the student. 

In this new era of technology securing information in internet has become a crucial task. To secure such information, encryption plays an important role in information security. In this paper Vigenere cipher is considered which is to be most efficient and simplest one. Due to its repeating nature, it is vulnerable to attacks like Kasiski, known plain text etc., to find the length of encryption key. To overcome this, this research present a modified algorithm encryption technique is done by using Vigenere cipher to improve better security against cryptanalysis. 

by Vittal Kumar Mittal | Manish Mukhija ""Cryptosystem Based on Modified Vigenere Cipher using Encryption Technique"" 

In this research, we apply the time independent Schroedinger equation for a particle moving in one dimensional potential barrier of finite width and height. We study the two cases which corresponds to the particle energies being respectively larger and smaller than the potential barrier. Then, we calculate transmission coefficient T as a function of particle energy E for a potential barrier by changing the barrier height V0 and width L using Propagation Matrix Method. If we keep the barrier width constant and varying the height, we see that the passing limit is shifting towards the higher energies when barrier height is increased. If we keep the barrier height constant and change the barrier width, we see significance change in oscillations. 

by Aye Than Kyae | Htay Yee | Thida Win | Aye Aye Myint | Kyaw Kyaw Naing ""Study on Transmission Probabilities for Some Rectangular Potential Barriers"" 

Radon is the biggest contributor to natural and radiation in the environment and causes long term health concern. The link between tobacco, cigarette smoke and cancer has long been established. Smokers are ten times at greater risk of developing lung cancer than that of non smokers. In this work, the radioactive radon concentrations of some cheroot samples in Myanmar were measured using SSNTDs technique and long term measurements were carried out for period of 100 days. According to the detection of alpha tracks, alpha track density and radon concentrations were carried out. And then annual effective dose of radiation in the corresponding samples were calculated. 

by Thida Win | Aye Than Kyae | Tin Htun Naing | Kyaw Kyaw Naing ""Long-Term Measurements of Radon Concentrations in Some Cheroot Samples"" 

A series of ytterbium substituted Zinc ferrites Zn YbxFe1 x 2O4 with x=0.0000, 0.0125, 0.0250, 0.0375, 0.0500 was synthesized by the solid state method. The structural characterizations of all the prepared samples were done by using X ray diffraction XRD . These studies confirmed the formation of single phase structure in all compositions. The increase in the value of lattice parameter with increase in ytterbium concentration suggests the expansion of unit cell. Crystallinity and the crystallite size are observed to increase with the concentration of Ytterbium. The substitution of ytterbium strongly influences the magnetic characteristics and this is confirmed from the magnetization measurements at room temperature. 

by Zar Zar Myint Aung ""Effect of Ytterbium Substitution on the Structural and Magnetic Properties of Nanocrystalline Zinc Ferrite"" 

Electro hydraulic drives are widely used in various branches of technology due to a number of its advantages, which include significant specific power the ratio of power developed by the drive to its mass , high speed and the ability to position the output link with a sufficient degree of accuracy. However, hydraulic drives are non linear objects, which makes it difficult to synthesize drive control, which provides the required dynamic characteristics. This paper presents an approach to solving the problem of constructing a control algorithm based on the concept of inverse problems of dynamics by an electro hydraulic drive, consisting structurally of an electro hydraulic amplifier and an executive hydraulic cylinder. 

In the present paper, the sodic soil samples were collected from the salt production area of Thakhauttaw, Hanlin, Sataung Gyi and Paline, Shwebo District, Sagaing Region. These samples were studied on the elemental analysis using the energy dispersive x ray fluorescence EDXRF spectroscopy. In order to evaluate the contamination status of metals, assessment indices such as metal pollution index MPI and enrichment factors EFs have been calculated by using the metal concentrations from the EDXRF results. The values of metal pollution index MPI for all samples were less than 1. This indicating the sodic soil was no significant of metal pollution. The results of enrichment factors show that Ca and Mn considerable enriched levels in the soil. According to health physics point of view, the overall study suggests that the sodic soil from salt production area were not metal contaminated and long term consumption cannot be cause potential health risks to consumers. 

With the advancement in age and its growing demands, there has been fast production in the field of communication system. Signals, which were sent at the beginning in the analog form, are being sent more and more in the digital form now in these days. For improved transmission, even single carrier waves are being recouped by multi carriers' waves. Multi carrier systems like CDMA and OFDM are now a days being implemented commonly. In the OFDM system, orthogonally placed subcarriers are used to send the data from the transmitter end to the receiver end. Presence of guard band in this communication system deals with the ISI issues and noise is mitigated by larger number of sub carriers. But the large PAPR Peak to Average Power Ratio of these signals have some unsuitable effects on the communication system. In this research work we have focused on the OFDM System and have implemented various techniques to reduce the PAPR in the OFDM system so that this system can be used more commonly and energetically. 

Orthogonal frequency division multiplexing OFDM is perhaps the most spectrally efficient, robust transmission technique discovered so far for communication systems, and it also mitigates the problem of multipath environment. Due to its advantages in multipath fading channel e.g. robust against ISI, ICI and some other advantages like best QoS for multiple users, efficient usage of bandwidth it is suggested to be the modulation technique for next generation 4G networks e.g. LTE. But along with all its advantages there are some disadvantages also e.g. High PAPR Peak to Average Power Ratio at the transmitter end and BER Bit Error Rate at the receiving end. OFDM is used in the downlink of 4G networks. To reduce the problems of OFDM some techniques e.g. SLM, PTS, Clipping, Coding, and Pre coding etc are suggested but none of them is reduce the PAPR and BER to an acceptable value. This Paper will discuss some techniques of PAPR and BER reduction, and their advantages and disadvantages in detail. 

Audio signals containing secret information or not is a security issue addressed in the context of steganalysis. ThRainfalle conceptual ide lies in the difference of the distribution of various statistical distance measures between the cover audio signals and stego audio signals. The aim of the propose system is to analyze the audio signal which have the presence of information hiding behavior or not. Mel frequency ceptral coefficient, zero crossing rate, spectral flux and short time energy features of audio signal are extracted, and combine these features with the features extracted from the modified version that is generated by randomly modifying with significant bits. Moreover, the extracted features are detected or classified with a support vector machine in this propose system. Experimental result show that the propose method performs well in steganalysis of the audio stegnograms that are produced by using S tools4. 

In this research work, the Dalbergia Lanceolaria L., Myanmar name Thit pagan was selected to qualify and quantify the flavonoids present in it. The stem bark of Thit pagan was collected from Minbu Township, Magway Region, Myanmar. Firstly, the preliminary phytochemical test of this selected plant was carried out which gave positive for glycoside, flavonoid, polyphenol phenolic, sugar, saponin, tannin, terpene, alkaloid, and lipophenol test. Furthermore, the mineral contents of selected sample were measured by EDXRF method. Moreover, the total flavonoids of selected sample were extracted with 95 EtOH. This extract was checked for qualitative test of flavonoids. It responds positive for Ferric Chloride test, Shinoda's test and Lead Acetate test respectively. In addition, total flavonoid content of Dalbergia Lanceolaria L. was evaluated by the aluminum chloride AlCl3 method using UV Visible spectrophotometer UV 1800, SHIMADZU, UV spectrophotometer at 510 nm. The total flavonoid content of this selected sample was determined as 41.17 0.11 mg quercetin equivalent QE per gram dry weight. 

In the Fourth industrial revolution, numerous technologies encompass unexpectedly influencing our lives. Disruptive innovations in the telecom sector verdicts a type of technology which has the potential to alter how human lives, market trends as well as other aspect especially in the communication era. Studies show that in the next few years, there are plenty of technology with the disruptive features uproots incumbency of market leader, if they are not aware of disruptive technologies. To understand the nuances of Disruptive innovation and impact on incumbents in Telecom sector in India, Reliance Jio Company has been selected for the study. Despite the rapid dawn of disruptor, the study made an attempt to know how market structure, revenue and competitive edge of incumbents shattered in the telecom sector in India. Finally, sustainable strategies of incumbent telecom players against disruption have been studied. 

Recognizing an unknown flag in a scene is challenging due to the diversity of the data and to the complexity of the identification process. And flags are associated with geographical regions, countries and nations. But flag identification of different countries is a challenging and difficult task. Recognition of an unknown flag image in a scene is challenging due to the diversity of the data and to the complexity of the identification process. The aim of the study is to propose a feature extraction based recognition system for Myanmar's national flag. Image features are acquired from the region and state of flags which are identified by using principal component analysis PCA . PCA is a statistical approach used for reducing the number of features in National flags recognition system. 

Automatic natural description generation of an image is currently a challenging task. To generate a natural language description of the image, the system is implemented by combining with the techniques of computer vision and natural language processing. This paper presents different deep learning models for generating the natural language description of the image. Moreover, we discussed how the deep learning model, which works for the natural language description of an image, can be implemented. This deep learning model consists of Convolutional Neural Network CNN as well as Recurrent Neural Network RNN . The CNN is used for extracting the features from the image and RNN is used for generating the natural language description. To implement the deep learning model in generating the natural language description of an image, we have applied the Flickr 8K dataset and we have also evaluated the performance of the model using the standard evaluation matrices. These experiments show that the model is frequently giving accurate natural language descriptions for an input image. 

The assignment problem is a special type of linear programming problem and it is sub class of transportation problem. Assignment problems are defined with two sets of inputs i.e. set of resources and set of demands. Hungarian algorithm is able to solve assignment problems with precisely defined demands and resources.Nowadays, many organizations and competition companies consider markets of their products. They use many salespersons to improve their organizations marketing. Salespersons travel form one city to another city for their markets. There are some problems in travelling which salespeople should go which city in minimum cost. So, travelling assignment problem is a main process for many business functions. 

by Mie Mie Aung | Yin Yin Cho | Khin Htay | Khin Soe Myint ""Minimization of Assignment Problems"" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, 

URL: https://www.ijtsrd.com/papers/ijtsrd26712.pdf

Paper URL: https://www.ijtsrd.com/computer-science/other/26712/minimization-of-assignment-problems/mie-mie-aung

economics journal, best international journal

Classification is a form of data analysis that can be used extract models describing important data classes or to predict future data trends. Classification is the process of finding a set of models that describe and distinguish data classes or concepts, for the purpose of being able to use the model to predict the class of objects whose class label is unknown. In classification techniques, Naïve Bayesian Classifier is one of the simplest probabilistic classifiers. This paper is to study the Naïve Bayesian Classifier and to classify class label of paddy type data using Naïve Bayesian Classifier. This paper predicts four class labels and displays the selected impacts attribute of each class label by using Naïve Bayesian classifier. Moreover, this paper can predict the types of paddy for paddy dataset by using other classification methods such as Decision Tree and Artificial Neural Network. Furthermore, this system can be used to predict production rate and display the selected impacts attribute of other crops such as soybeans, corns, cottons. This paper focuses on paddy dataset and decides paddy types are Lasbar or Yar Sabar or Yenat Khan Sabar or Sar Ngan Khan Sabar. 

A linear homogeneous recurrence relation of degree k with constant coefficients is a recurrence. A recurrence relation is an equation that recursively defines a sequence or multidimensional array of values, once one or more initial terms are given each further term of the sequence or array is defined as a function of the preceding terms. 

by Thidar Hlaing ""Impact of Linear Homogeneous Recurrent Relation Analysis"" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019,