bluuebunny/crossref_metadata_2025 huggingface dataset:
A 2×2 Antenna Array for L Band Phased Array RADAR Applications
Authors:   Assistant Professor, Dept. of E.C.E, Vignan’s Foundation For Technology and Research, Guntur, India., Satish K. , Sekhar M. ,   Assistant Professor, Dept. of E.C.E, Vignan’s Foundation For Science Technology and Research, Guntur, India.
Published: July 2023

A Four element antenna array for the Phase array RADAR applications in the L Band with an operating frequency of 1.32GHz is presented. The four patches are been connected to four different transmitter circuit with which we can control the phase of the input signal. The antenna is having a size of 212mm×212mm×1.6mm with a gain of 8.78dB and directivity of 10.31dB at the operating frequency of 1.32GHz.. Low cost FR4 material is been used as the laminate base for the antenna which will act as the dielectric material.
A Dual Frequency Dielectric Resonator Antenna for Wireless Communication Applications
Authors:   Assistant Professor, Dept. of E.C.E, Vignan’s Foundation For Science Technology and Research, Guntur, India., Rao N.Ananda , Sekhar M. ,   Assistant Professor, Dept. of E.C.E, Vignan’s Foundation For Science Technology and Research, Guntur, India.
Published: July 2023

A dual frequency Dielectric Resonator antenna for wireless communication applications in the S and C bands with an operating frequency of 2.65GHz and 4.62GHz is presented. The patch is a dielectric material with a high dielectric constant value of 20. A 50Ω strip line is considered as feed and is coupled to the dielectric radiator via the rectangular slot etched in ground plane. The slot etched in ground plane is made so as to facilitate the power form the feed line to the radiator. The overall dimension of the antenna is 100mm×35mm×0.8mm. A dual frequency antenna has been proposed which will be operational at the frequencies of 2.65GHz and 4.62GHz with a gain of 4.42dB and 7.78dB respectively. Low cost FR4 material is been used as the laminate base for the antenna which will act as the dielectric material.
Frequency Reconfigurable Antenna using PIN Diodes
Authors:   Department of Electronics and Communication, Vignan’s Foundation for Science, Research and Technology Guntur, Andhra Pradesh, India, Praveena S. , Prusty Sunakar ,   Department of Electronics and Communication, Vignan’s Foundation for Science, Research and Technology Guntur, Andhra Pradesh, India.
Published: July 2023

With the increase in wireless applications, there is a need for compact antennas that adapt their behavior with changing system requirements or environmental conditions. Here adapt implies the antenna should be able to alter operating frequencies, impedance bandwidths, polarizations, radiation patterns. These all features are provided by the “Reconfigurable antenna”. The important feature of reconfigurable antenna is that, they provide the same throughput as a multi-antenna system. A compact frequency reconfigurable antenna is designed with the aid of Ansoft HFSS that provides multiple frequency bands. This is achieved by using electrical switches such as PIN diodes. Depending on state of switches different operating frequencies are obtained. The switches placed on the antenna elements are powered wirelessly by the antenna itself. The design, geometries and simulation results of a frequency reconfigurable antenna are presented in this report. Further advancements are to be done for this structure to achieve polarization and radiation pattern re-configurability.
Remote Ecg Monitoring System by using Iot
Authors:   Department of ECE Vignan Foundation For Science,Technology and Research Guntur, India., Kumar Pagadala Pavan , Naidu Thokala Santhosh ,   Department of ECE Vignan Foundation For Science,Technology and Research Guntur, India., Vishnu Mr.S. ,   Department of ECE Vignan Foundation For Science,Technology and Research Guntur, India.
Published: July 2023

In this paper, we proposed a prototype to monitor the heartbeat of a patient perpetually through the cloud. The AD8232 sensor is utilized to quantify the heartbeat. Nodemcu ESP 8266 microcontroller is utilized to process the data like transmitting and receiving the data. The data from the heartbeat sensor is accumulated through the microcontroller and the data is posted into the cloud with the avail of Thingspeak. This model is very secure in terms of data because the target person is connected to the medico predicated on the unique IP address which provides us a secure transmission of data. This model consumes less power and withhalf the precision is more.
Recommending System for Penny Stock Trading
Authors:   Research Scholar, Rayalaseema University, Kurnool, Andhra Pradesh, Begum S Shabana , Kasiviswanath Dr. N. ,   Professor&Head, Dept. of Computer Science and Engineering, G.Pulla Reddy Engineering College, Kurnool, Andhra Pradesh.
Published: July 2023

Penny stocks at times makes the investors wealthy by turning to be a multi-bagger stocks or erode the wealth of the investors with poor performance in volatile conditions. While there are many machine learning-based prediction models that are used for stock price evaluation, very few studies have focused on the dynamics to be considered in penny stock conditions. Though the pattern might remain the same for normal stocks and the penny stock classification, still some of the parameters to be evaluated in the process needs changes. The model discussed in this report is a comprehensive solution discussed as scope for evaluation of the penny stock pick, using trading and reporting financial metrics. Experimental study of the test data indicates that the model is potential and if can be used effectively with reinforcement learning pattern, it can turn to be sustainable solution.
Semiautomated Device for Plucking of Flower Buds
Authors:   Department of Electronics and Telecommunication Engineering Sathyabama Institute of Science and Technology Chennai,India., Leo L.Megalan , Simla A.Jerrin ,   Department of Computer Science Engineering Panimalar Institute of Technology Chennai,India, Shifani Agnes ,   Department of Electronics and Communication Engineering Jeppiaar maamallan engineering college Chennai,India.
Published: July 2023

Indians are celebrating more number of festivals than any other country. In festival celebrations, flowers are used as a prime element. Without flowers we will not celebrate even single festival. Most popular flowers in south India is Nerium oleander, jasmine, rose, etc. These flowers are demanded high among the flowers due to its fragrance. Another added advantage is its less cost. Though it has many advantages, certain drawbacks limit the business. One major problem is plucking flower at the right time. It is very difficult task because the workers must pluck the flowers before its blossom. So, they have to pluck early morning around 4’o clock under weak light condition. At weak light condition workers may not able to identify the insects and snakes. Because of this workers efficiency is reduced as well as some of them died. To overcome this problem, we proposed a device for plucking and packing of flower buds. The proposed device can able to move forward, backward and rotate. Camera with light is used to capture the image of the flower bud. Image processing technique is used to match the image of the bud. Robot arm is used to pluck the bud. Container is used to pack the buds. The proposed device is a waterproof device.
Optimum Frequency Allocation Mechanism of TV White Spaces by using Interval Graph
Authors:   ECE Department VFSTR University Vadlamudi, Guntur, AP,INDIA, CK Meghalatha. , Ramanjaneyulu B.Seetha ,   ECE Department VFSTR University Vadlamudi, Guntur, AP,INDIA
Published: July 2023

The unused frequencies of terrestrial TV are being explored in the recent years, to satisfy the bandwidth demands of ever-increasing wireless communication systems. Allocating these unused TV frequencies is often a challenging task. Allocations that fulfil the user requirements at various instants, while maximizing the utilization of available TV frequencies is the one that is desired. In this paper, interval-graph method is implemented to identify the optimum number of channels needed for the given demand of bandwidths. Simulations are carried out by using GLPK 4.65 solver. Results show the appropriate number of channels required or conversely the reduction of data rates to individual users based on the available bandwidths.
Leakage Current Alleviation Techniques for SRAM Cell
Authors:   Assoc. Prof. Electronics and Communication Engineering VFSTR (Deemed to be University) Vadlamudi, India, Jayabalan Dr. Muralidharan , Valluri Aswini ,   Ph.D Research Scholar Electronics and Communication Engineering VFSTR (Deemed to be University) Vadlamudi, India
Published: July 2023

Due to the tremendous increase in the call of handheld devices like mobile, iPods and tablets; certain applications like space and biomedical, it is necessary to have low power consuming digital systems. As a crucial part in digital systems,Static Random Access Memory(SRAM) should consume low power since it occupies about 70% of the total chip area. As the technology is shrinking, SRAM’s leakage power in standby condition is becoming a most critical concern for the low power applications. This paper gives a study of different leakage components present in SRAM and discusses about various current reduction techniques which include Gated VDD, MTCMOS, Dual threshold and Transistor Stacking.
Design Consideration for Developing Bio-potential Instrumentation Amplifier Intended for Bionic Eye.
Authors:   Ph.D Research Scholar Electronics and Communication Engineering VFSTR (Deemed to be University) Vadlamudi, India., Katikala Hima Bindu , Shaik Dr.Sadulla ,   Professor & HoD, Electronics and Communication Engineering KKR and KSR Institute of Technology and Sciences (KITS),Vinjanampadu, India., Jayabalan Dr. Muralidharan ,   Assoc. Prof. Electronics and Communication Engineering VFSTR (Deemed to be University) Vadlamudi, India., Nath Yatavakilla Amarendra ,   Scientist, Assistant Prof. Electronics and Communication Engineering VFSTR (Deemed to be University) Vadlamudi, India.
Published: July 2023

According to the Survey of WHO [World Health Organization] ,a people of about 285 million are visually impaired, 39 million are blind and 246 million are having low vision. Blindness is a serious ailment that makes people to suffer a lot. It occurs because of the eye related disorders like Retinitis Pigmentosa[RP], Age-Related Macular Degeneration[AMRD] and Glaucoma, resulting to lead an uncomfortable life style. Recent developments of the Biomedical Engineering field lead to the development of artificial human eye-Bionic eye analogous to natural eye. Bionic eye is a complex system which is integrated with many sub systems such as CCD camera, video processing unit, implantable chip , radio transmitter and receiver. The implanted artificial retina helps the patients of RP and AMRD regains the vision. Apart from this there exist limitations because of electrode count and noise levels. For better optimization to reduce noise levels of bio-potential signals an instrumentation amplifier is used. In this paper different Instrumentation amplifier are discussed.
Different Types of Ultra-low Power Energy-Harvesting Design Techniques for IoT Applications
Authors:   Research Scholar-VLSI Department of ECE Vignan’s- University., Manchala Venkat Subba Rao. , Muralidharan Dr.J. ,   M.E, Ph.D Associate Professor Department of ECE Vignan’s University-Vadlamudi., Rajendra Mr. D. ,   Assistant Professor Department of ECE Vignan’s University.
Published: July 2023

In this paper, different type of level shifter circuits, that can able to convert the sub-threshold level to super-threshold level signals are discussed. To develop the ultra- low static power consumption circuit designs such a way to switch on the transistor for a low voltage levels. To enhance the switching speed and minimize the dynamic power consumption, by incorporating the CMOS –inverter buffer circuit at the output side to improve the energy efficiently. These energy harvesting design techniques provides endless energy supply to electronic systems that are remotely located areas. More number of devices are controlled by IoT (Internet of Things) to perform the operation by remote sensing.
Arduino based Dialyser Reprocessing System
Authors:   Biomedical Engineering, Department of ECE, Vignan’s Foundation for Science Technology and Research, Guntur, A.P., India, Boppudi Sunil Tej , Reddivari Hasya Reddy ,   Biomedical Engineering, Department of ECE, Vignan’s Foundation for Science Technology and Research, Guntur, A.P., India, Deepthi Ramanukolanu Sai ,   Biomedical Engineering, Department of ECE, Vignan’s Foundation for Science Technology and Research, Guntur, A.P., India, Babu Guggilam Ramesh ,   Biomedical Engineering, Department of ECE, Vignan’s Foundation for Science Technology and Research, Guntur, A.P., India
Published: July 2023

Hemodialysis is a process of eliminating metabolic wastes from the blood in humans who suffer with renal failure or End Stage Renal Disease (ESRD). In the heart of the purifying process lies an exchanging apparatus called the Dialyzer, where it acts as a semipermeable membrane for the blood metabolic constituents to get eliminated from the system and sometimes excess water is also eliminated based on the patient’s condition. These dialyzers are available in commercial market in two variants, one as a disposable and another as a reusable, where the latter can be multiple cycles of purification. In order to be useful for the multiple times or multiple cycles, a dialyzer is put in the dialyzer reprocessing unit (DRU). A DRU will ensure that the biological fluid is cleaned and disinfected with various fluids, filled with bacteria repellent fluid for later usages. DRUs are increasingly expensive in commercial aspects, in this paper a low cost dialyzer reprocessing prototype has been fabricated using an Arduino UNO board for the process control using R.O Water, Hydrogen peroxide and formalin as cleansing and disinfectant agents.
Single and Multi-Type Controllers with Soft Computing Methods and Routing in Software Defined Network
Authors:   Department of Electronics and Communication, Usha Mittal Institute of Technology, (UMIT) SNDT University Mumbai, Maharashtra, Ramasamy Mythrayee , Pawar Dr. Sanjay ,   Department of Electronics and Communication, Usha Mittal Institute of Technology, (UMIT) SNDT University Mumbai, Maharashtra
Published: July 2023

The software defined networking topology is enabled for efficient configuration for monitoring and enhance the network performance. The multi-controller placement becomes very critical, and it can be rectified by the proposed approach. The comparison of single type and the multi controllers are discussed in this paper.The first paper is compared with the dragonfly algorithm, in this we have considered only multi POX controllers. So the latency difference depends on the iteration of the algorithm. Thus the latency is reduced in proposed algorithm. Similarly the second paper has compared with the existing algorithm of firefly, which states the multi type of controllers such as POX, NOX, BEACON and FLOODLIGHT, among that latency is calculated and compared. The selection criteria are varied according to its type. Hence the routing is carried out on the two controllers alike POX, and NOX, through ad hoc on demand distance vector routing protocol. Subsequently, the selected controllers specifically are placed and simulated in Pareto-based Optimal Controller placement (POCO) tool for the Internet 2 topology and network simulator(NS2). Finally the comparison results makes the proposed system is better than previous methods.
Massive Mimo and Beamforming Techniques of 5G Networks
Authors:   Vignan’s Foundation for Sciemce Technology and Research Vadlamudi, Guntur, India, Yarrabothu Ravi Sekhar , Telagathoti Pitchaiah ,   Vignan’s Foundation for Sciemce Technology and Research Vadlamudi, Guntur, India
Published: July 2023

The need of wireless communication is increasing day to day life and it is mostly depends on spectral efficiency and bandwidth. The current operating wireless technologies are ranging between 300MHz to 3GHz band; consequently the 5G wireless network depends up on high frequency millimeter wave band ranging between 3GHz to 300GHz. The spectral efficiency can be improved by using Massive Multiple Input Multiple Output (MIMO) Technology. In this paper we are discussing MIMO along with some emerging technologies are present in 5G, they are Millimeter Wave, Beam Forming, and Beam Steering. By using these technologies the capacity is increased, higher data rates will be obtained, latency can be reduced and enhanced quality of service will occur.
Regression Heuristics by Optimal Tridimensional Features of Electrocardiogram for Arrhythmia Detection
Authors:   Reasearch Scholar, Department of Computer Science and Engineering, JNTUA, CEA Anantapuramu, Andrapradesh, India., Aarathi S. , Vasundra Dr.S. ,   Professor, Department of Computer Science and Engineering, JNTUACEA Anantapuramu, Andrapradesh, India.
Published: July 2023

Computer aided predictive analytics are vital in noncommunicable diseases. In particular, early diagnosis of arrhythmia (heart related disease) is crucial to prevent sudden deaths due to heart failure. The critical context to prevent deaths caused by arrhythmia is early prediction of the arrhythmia scope. The clinical experts widely consider the Electro Cardio Gram (ECG) report as primary parameter to scale the scope of arrhythmia. However, the diagnosis accuracy of clinical experts is highly correlate on their expertise. Unlike the other domains, the sensitivity that is the accuracy in disease-prone is very much crucial in clinical practices. Particularly, the accuracy and sensitivity are more vital in computer-aided heart disease prediction methods. Hence, the recent research contributions are quantifying the possibilities of optimizing machine-learning approaches to achieve significance in computer-aided methods to perform predictive analysis on arrhythmia detection. Regarding this context, this manuscript is defining a Regression Heuristics by Tridimensional Features of the electrocardiogram reports, which has intended to perform arrhythmia prediction. The experimental study evincing the significance of the proposed model that scaled against the contemporary methods.
A 2×2 Antenna Array for X Band Phased Array RADAR Applications
Authors:   UG Student, Dept. of E.C.E, Vignan’s Foundation for Science Technology and Research, Guntur, India., Alekya K. , Sekhar M. ,   Assistant Professor, Dept. of E.C.E, Vignan’s Foundation for Science Technology and Research, Guntur, India.
Published: July 2023

A Four element rectangular patch antenna array has been designed for the Phase array RADAR applications in the X Band with an operating frequency of 10GHz. The four patches are been connected to four different transmitter circuit with which we can control the phase of the input signal. A 50Ω coaxial probe feed has been used to excite the antenna. The overall dimension of the antenna is 212mm×212mm×1.6mm. The Proposed antenna is having an gain of 10.2dB at the operating frequency of 10GHz. The directivity of the antenna at the operating frequency is 10.31dB. Low cost FR4 material is been used as the laminate base for the antenna which will act as the dielectric material.
The ACO based Routing Protocols for Mobile Ad Hoc Networks
Authors:   Vignans foundation for Science Technology and Research Deemed to be University Guntur,, Pullagura Joshua Reginald , Rao Dr.D.Venkata ,   QIS College of Engineering and Technology, Ongole
Published: July 2023

Mobile ad hoc networks are gaining high importance in present days due to many civilian applications apart from regular military applications. Networks usually are designed using fixed infrastructure. Wherever fixed networks are not feasible, ad hoc network serve the purpose. Routing plays an important role in packet transmission, Multicast routing protocols designed for data transfer should consider both bandwidth and energy of the node. Many Ant colony Optimization (ACO) based routing approaches are proposed by researchers. In this paper three popular ACO based routing protocols ANTCHAIN, ANTALG and EMRP-AIPUR are compared using NS2 simulator. The results obtained show that EMRP-AIPUR shows better performance when compared to the other two protocols
Merged Floating Point Multipliers
Authors:   Department of Electronics & Communication Engineering Vignan’s Foundation for Science, Technology and Research, Guntur- 522213, A.P, India, Singamsetti Mrudula , Shaik Sadulla ,   T.Pitchaiah Department of Electronics & Communication Engineering Vignan’s Foundation for Science, Technology and Research, Guntur- 522213, A.P, India, Pitchaiah T. ,   Department of Electronics & Communication Engineering Vignan’s Foundation for Science, Technology and Research, Guntur- 522213, A.P, India
Published: July 2023

Floating point multipliers are extensively used in many scientific and signal processing computations, due to high speed and memory requirements of IEEE-754 floating point multipliers which prevents its implementation in many systems because of fast computations. Hence floating point multipliers became one of the research criteria. This research aims to design a new floating point multiplier that occupies less area, low power dissipation and reduces computational time (more speed) when compared to the conventional architectures. After an extensive literature survey, new architecture was recognized i.e, resource sharing Karatsuba –Ofman algorithm which occupies less area, power and increasing speed. The design was implemented in mat lab using DSP block sets, simulator tool is Xilinx Vivado.
A Novel Method for Monitoring SpO2 in Wearable Health Monitoring Applications
Authors:   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India, Singh Priyam , Shaik Farzana ,   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India, Eunice Princy ,   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India, Luther Isaac ,   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India, Deepthi R.Sai. ,   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India, Nath Yatavakilla Amarendra ,   Biomedical Department, Electronics & Communications Engineering,Vignan’s foundation for science technology & research (deemed to be university) Vadlamudi – 522 213, India
Published: July 2023

This study outlines the utility of a reflectance pulseoximeter sensor in Wearable Health Monitoring System (WHMS). Pulseoximeter has its own vital role in WHMS as it can provide additional crucial information about the physiological status. This paper discusses the data analysis for ambulatory utility of a reflectance pulseoximeter for variable locations on the body e.g. Finger, forehead, chest. Different physical factors affecting the performance of spo2 sensor are considered and discussed. An experiment simulating ambulation was conducted with Nonin reflectance sensor against standard sensor is capable for its utility in variable motions. We also compared variable locations data against standard positions like Forehead and Fingertip during rest conditions, the outcome of which proved that the Manubrium sternum can be utilized as a site of location for the measurement of spo2 with respect to a single emitter and detector sensor.
Exploration on Consumer’s Perception and Buying Behavior of Health Insurance Policies in Hyderabad City
Authors:   Research Scholar, Professor & Head, Department of Statistics, Pondicherry University, Puducherry, Gajula Srimannarayana , Dhanavanthan P. ,   Professor & Head, Department of Statistics, Pondicherry University, Puducherry
Published: July 2023

Health insurance is an emerging channel of distribution adopted by insurers to increase the insurance market and its penetration. Health Insurance can reimburse the expenses of individuals incurred from the long term illness or sudden injuries to pay care provider directly. The present study attempts to know the perception levels to find out the awareness, influence, expectations, and willingness to purchase policy from the Non-Health Insurance Policy holders in Hyderabad City. A sample of 118 respondents were collected for this purpose and statistical analysis such as percentage analysis for socio-economic factors, awareness levels, sources of information, the Insurer type, policy options, and preferences in payment methods among the Non-Health Insurance policy holders was done. Ranks were assigned to the variables for influence in purchasing the policy through weighted average scores. Different influential factors for buying health insurance policy was explored by Exploratory Factor analysis. We found in our study that socio-economic factors, individuals’ perception and personality traits induces health insurance policy buying behavior in the region.
Estimating Pairwise Fuzzy Spaces using Residual Sets Spaces
Authors:   Professor and Head Department of Mathematics Thiruvalluvar University Serkkadu, Vellore-632115, Tamil Nadu, India, Thangaraj G. , Chandiran V. ,   Research Scholar Department of Mathematics Thiruvalluvar University Serkkadu, Vellore-632115, Tamil Nadu, India.
Published: July 2023

The main focus of this paper is to introduce the new types of pairwise fuzzy Volterra spaces such as by introducing pairwise fuzzy residual sets in the place of pairwise fuzzy Gδ-sets in the definition of pairwise fuzzy Volterra space, a new kind of fuzzy bitopological space namely, pairwise fuzzy εr-Volterra spaces has been introduced and studied and also by introducing pairwise fuzzy pre-open sets in the place of pairwise fuzzy dense sets in the definition of pairwise fuzzy Volterra space, another kind of fuzzy bitopological space namely, pairwise fuzzy εr-Volterra spaces has been introduced and studied. Some of their characterizations and relationships with the other fuzzy bitopological spaces have been investigated and studied.
Decay Management Model for Perishable Goods
Authors:   Division of Mathematics, Vignan’s Foundation for Science, Technology & Research, Vadlamudi-522 213, Guntur, Andhra Pradesh, India., Sekhar P. Sudam , S Parthiban. ,   Division of Mathematics, Vignan’s Foundation for Science, Technology & Research, Vadlamudi-522 213, Guntur, Andhra Pradesh, India., Murthy V.R.K. ,   Division of Mathematics, Vignan’s Foundation for Science, Technology & Research, Vadlamudi-522 213, Guntur, Andhra Pradesh, India.
Published: July 2023

Inventory management becomes a challenge when it comes to perishable goods. In practice managing perishable goodsis a difficult task worldwide.Improvement of inventory control of perishable goods depends on the model chosen or implemented. This paper proposes how to improve the profit and to reduce the risk of spoiling the goods with respect to the rate of decay which may be fixed or variable. By considering a specific type of perishable goods this experimental investigation has been done based on linear decay and exponential decay. It has been observed that irrespective of the type of decay, the energy level in forward approach is far better than the back approach of consuming the perishable goods.
A Research on Change Point and Trend Scrutiny: with Reference to Castor in India
Authors:   Dept. of Mathematics, Vignan’s Foundation for Science, Technology & Research, Vadlamudi, Guntur, India,, P Kalpana , K Madhavi ,   Dept. of Mathematics, Govt. Degree College, Kuppam, India, M Venkateswaran ,   Dept. of S&H, SVEC, Tirupati, India, Kumar P Kiran ,   Dept. of Statistics, Pondicherry University, Pondicherry, India
Published: July 2023

Castor is treated as an important non-edible oil crop among Mahua, Karanja and Jatropha. India occupies a leading position in the production of castor followed by China and Brazil. Castor has been used in various purposes from thousands of years ago which has important characteristics. The main objectives of current work are i) Identification of change point and ii) Trend analysis with respect to area, yield and production of castor for the period from 1961 to 2016 in India. The non-parametric statistical methods such as Pettitt's, Standard Normal Homogeneity (SNH) and Buishand’s Range tests have conceded to detect the mutation point whereas the magnitude of trend is measured and analysed with the help of Sen’s slope estimator and their significance is tested by Mann-Kendall test. The results revealed that the change is identified by mutation point at initially 1988. Interestingly the maximum growth is captured in the second sub-time series on the basis of time scale and area, yield and production. However, the production of castor cannot meet up its annual enormous demand for India.
Distribution of Departures
Authors:   Assistant Professor, Sri Venkateshwara College of Pharmacy, Gachibowlli, Hyderabad, India., Kasturi Nirmala
Published: July 2023

Among all statistical empirical distributions, the distributionson departures most used one in practice. Several distributions have been developed by some transformations on the existing distributions.This paper proposes one truncated probability density function for selected random variable.
Effect of Thermo Diffusion on Mass And Heat Transfer Flow on Convective Viscous Electrically Conducting Fluid Through a Porous Medium Bounded by a Semi-Infinite Vertical Plate with Variable Electrically Conductivity Diffusion Thermo Chemical Reaction
Authors:   Division of Mathematics, Vignan’s Foundation for Science Technology & Research (Deemed to be University), Vadlamudi, Guntur (Dt.), A.P, India, Rao T. Siva Nageswara
Published: July 2023

In this paper we investigate thermochemical diffusion reaction and effects of thermal diffusion on the mass and heat transfer flux Although the effects of thermal diffusion are vast, they can be transmitted through a very wide medium.. By employing Galerkin-finite element analysis the equations solved with three nodded line segments
Couette Flow of a Casson Fluid in an Inclined Composite Duct
Authors:   Division of Mathematics, Department of S & H, Vignan’s Foundation for Science Technology and Research, Vadlamudi, Guntur, A.P., India, Uppuluri V. Manoj Kumar , Sreenadh S. ,   Department of Mathematics, Sri Venkateswara University, Tirupati, A.P., India, Krishna G. Gopi ,   Department of Mathematics, Marri Laxman Reddy Institute of Technology and Mangement, Hyderabad, A.P., India, Srinivas A. N. S. ,   Department of Mathematics, School of Advanced Sciences, VIT, Vellore, 632 014, Tamilnadu, India
Published: July 2023

Couette flow of a Casson fluid in an inclined composite duct comprising of porous and fluid layers of different thickness is investigated. A fully developed steady flow is assumed to be produced by applying a constant pressure gradient. The flow governing equations are described as per the standard literature. The boundary conditions at the porous and free fluid interface are formulated and the equations for fluid velocity within the porous layer and in the open channel are solved analytically. These flow quantities are studied for the effect of parameters such as porous layer thickness, volume fraction of fluid, viscosity parameter, drag parameter, angle of inclination, upper plate velocity and Casson fluid parameter. The results obtained are compared with standard literature and show good agreement. The study reveals that under prescribed conditions fluid flux in the porous layer is higher than that of in the open channel.
Mathematical Computation of Couple Stress Fluid Flow through Stenosed Artery with Suspension of Nanoparticles
Authors:   Reseach scholar, Electronics and Communication Department, Usha Mittal Institute of Technology, SNDT Women’s Univer-sity, Mumbai., Prasad K. Maruthi , Sudha T. ,   Professor and HOD Electronics and communication depart-ment Usha Mittal Institute of Technology, SNDT Women’s Universi-ty,Mumbai.
Published: July 2023

This work consists the effect of an overlapping con-striction of couple stress fluid with nanoparticles. The equations are derived analytically by using HPM technique. Effects of rele-vant parameters on flow resistance and shear stress at wall of the fluid are investigated. It is observed that flow resistance increases stenosis height and Brownian motion parameter. Flow resistance reduces with local nanoparticle and temperature Grashof num-bers, couple stress fluid parameters and thermophoresis parame-ter.
Machine Learning Based Emotion Recognition using Speech Signal
Authors:   Research Scholar, Veltech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai., Kumar K Ashok , Iqbal Dr. J. L. Mazher ,   Professor, ECE, Veltech Rangarajan Dr. Sagunthala r&D, Institute of Science and Technology, Avadi, Chennai.
Published: July 2023

The challenging module in CAS (computer-aided services) has recognized the emotion from the signals of speech. In SER (speech emotion recognition), several schemes have used for extracting emotions from the signals, comprising various classification & speech analysis methods. This manuscript represents an outline of methods & explores some contemporary literature where the existing models have used for emotion recognition based on speech. This literature review presents contributions that made towards emotion recognition of speech and extracted the features for determining emotions.
Estimating Circular Distance in Graph Nodes
Authors:   Division of Mathematics, Department of S&H, Vignan’s Foundation for Science, Technology & Research,Vadlamudi- 522213, Guntur, India,, Veeranjaneyulu J. , N. Varma. P. L. ,   Division of Mathematics, Department of S&H, Vignan’s Foundation for Science, Technology & Research,Vadlamudi- 522213, Guntur, India
Published: July 2023

In the current article we propose the concept of circular D-distance between nodes which is sum of Ddistance and detour D-distance. We show that this distance is a metric. Also we study some properties. Further we compute the circular D-distance of some classes of graphs and show that some of them are circular D-self-centered.
Elementary Ideals in Tsemi-Rings Andn(A)-Tsemi-Ring
Authors:   Associate Professor, Department of Mathematics, Tirumala Engineering College, Narasaraopeta,”A.P., India, Rao G. Srinivasa , Rao D. Madhusudana ,   Associate Professor, Department of Mathematics, VSR & NVR College, Tenali, A.P., Sivaprasad P. ,   Associate “Professor”, Division of Mathematics,”VFSTR” Deemed to be “University, Vadlamudi,A.P., India
Published: July 2023

In this paper” we will introduce l-elementary ideals, lt-elementary ideals, r-elementary ideals and elementary ideals in TSemi-rings and its properties. Also, we will discuss special type of Tsemi-rings i.e. N(I)-TSemi-ring.
Mathematical Computation of Couple Stress Fluid Flow Through Stenosed Artery With Suspension of Nanoparticles
Authors:   Department of Mathematics, School of Technology, GITAM University, Hyderabad (Telangana), India., Prasad K. Maruthi , Sudha T. ,   Department of Mathematics, Malla Reddy College of Engineering for Women, Hyderabad (Telangana), India.
Published: July 2023

This work consists the effect of an overlapping constriction of couple stress fluid with nanoparticles. The equations are derived analytically by using HPM technique. Effects of relevant parameters on flow resistance and shear stress at wall of the fluid are investigated. It is observed that flow resistance increases stenosis height and Brownian motion parameter. Flow resistance reduces with local nanoparticle and temperature Grashof numbers, couple stress fluid parameters and thermophoresis parameter.
Influence Of Strategic Orientation on Performance of Commercial Banks in Kenya: Case of Study Family Bank Limited
Authors: Mwangi Justinah Wambui , Kerre Dorcas
Published: July 2023

In Kenya, fierce competition from both the banking industry and mobile telephony carriers which offer creative alternative offerings to traditional banking products, emphasizes the need for strategic orientation. Particularly, though Family bank continues to deploy new products and services while leveraging technology and building relationships with customers, it is yet to upgrade towards the intended tier 1 status. The bank continues to experience slow growth rate despite numerous strategies being formulated by the firm. In 2018, non-performing loans went up to Ksh 4.7 billion and interest income reduced by 50% in the first half to June as lending went down. Family bank’s low market share raises the question on the effects of strategic orientation practices on the performance of the firm. The objective of the study was to establish the influence of strategic orientation on performance of commercial banks in Kenya, a case study of Family Bank Ltd. The specific objectives of the study were to; assess the effect of technological orientation on the performance of commercial banks in Kenya, assess the effect of entrepreneurial orientation on the performance of commercial banks in Kenya and examine the effect of customer orientation on the performance of commercial banks in Kenya. This study was anchored on three main theories; Resource Based View Theory, Contingency Theory and Mckinsey 7S Model. The study was based on descriptive research design. The target population of the study was all the 31 Family bank branches based in Nairobi County. Census sampling technique was adopted and hence all the 31 targeted branches participated in the study with 171 managerial employees as the respondents. Data was collected using questionnaires. The collected data was analyzed using descriptive and inferential analysis. SPSS version 26.0 aided in the analysis of the data. Tables and figures were used to present the collected data. The study found that technological orientation has a positive and significant effect on the performance of commercial banks in Kenya (β=0.480, P-value=0.000). The study also found that entrepreneurial orientation has a positive and significant effect on the performance of commercial banks in Kenya (β=0.223, P-value=0.000). Further, the study found that customer orientation has a positive and significant effect on the performance of commercial banks in Kenya (β=0.480, P-value=0.000). The overall regression model of the study revealed that strategic orientation was a good predictor of organizational performance. The study concluded that strategic orientation has a significant effect on the level of organizational performance (adjusted R-square= 0.666). The study recommended that commercial banks in Kenya should enhance the adoption of strategic orientation in order to improve their performance and more so in new product development to enable them carve out new market niche for their goods and services, making them more competitive in the sector.
The Analysis of Flouting Maxim in the @Pepekomik comic strip
Authors: Saefudin Dery Purnama , Mulyadi Mulyadi , Santosa Prima Pantau Putri
Published: July 2023

The purpose of this study is to classify the utterances of deviation and violation of the cooperative principle proposed by Grice in the Pepekomik comic strip through the utterances expressed by the characters contained in the comic strip. In addition, this research is also intended to find out the types of flouting made. This research is a qualitative descriptive analysis. Researchers used 25 chapters of Pepekomik comic strips taken from the Instagram account @Pepekomik as data sources. The data are utterances from the characters in the comic strip that contain elements of flouting the principle of cooperation. The data taken are a comic chapter that was published in the period April - June 2022. From this study, the author draws a conclusion where there are flouting maxims of cooperative principle, flouting the maxim of quality (6%), flouting the maxim of quantity (14%), flouting the maxim of relevance (23%), and flouting the maxim of manner (57%). Among the four maxims that are flouted, the maxim of manner is the maxim that is most often flouted because in making humor the comic creator uses wordplay and meaning including ambiguity and implied meaning to create humor in his comic creation.
College Students’ Perception On The Implementation Of Digital Learning Using Flipped Learning Approach In EFL Classroom
Authors: Rochmawati Desi , Efendi Agus
Published: July 2023

Covid-19 pandemic has spread around the world which affects many factors in human life, particularly in educational sector. It forced students to embark at digital learning. The digital learning was implemented by applying flipped learning model with the implementation of virtual conference platform and Learning Management System (LMS). This study was a mixed-methods explanatory sequential research design. Qualitative and quantitative data were analyzed to gain the data of students’ perception toward the implementation of digital learning in English class.  The data were collected by observing, distributing questionnaires and doing deep interviews. The result showed that digital learning promotes self-learning, flexibilities, and trigger the creativities of students and their confidence as well. Digital learning in the form of Virtual Flipped Classroom (VFC) also ensured the learning continuity in any pandemic situation. Despite of the benefits of digital learning, there were still challenging in digital learning situation related to the internet connection support.
Teacher Roles in Fostering Learner Autonomy
Authors: Azhariah Siti , Lengkanawati Nenden Sri , Rodliyah Rojab Siti
Published: July 2023

Learner autonomy has been introduced to English language teaching and learning for a very long time. Yet, there are many education practitioners who are not aware of this concept, pre-service teachers, or what we can call future teachers are not exceptions. This study was aimed to investigate pre-service teachers’ practice in fostering learner autonomy during pre-service teaching programs. A survey questionnaire was employed to 78 pre-service teachers majoring in the English Education Program at one University in Indonesia. The results showed that the pre-service teachers often played teachers’ roles in fostering learner autonomy during the pre-service teaching program. They played various roles such as manager and organizer, facilitator, counselor, and resource. The most played role was manager and organizer, meanwhile the least played role was facilitator.
Out-of-Java Students’ Perceptions of Self-Efficacy in English-Speaking Skills
Authors: Wene Imelda Woa , Vantaosen Martinus Mersi
Published: July 2023

This study investigates out-of-Java students’ perceptions of their self-efficacy in English-speaking skills. To figure out their perceptions, the researchers formulated two research questions: (1) To what extent do out-of-Java students’ educational backgrounds impact their perceptions of self-efficacy in English speaking skills? (2) How do students cope with the challenges of speaking English? Participants in this study were the third-semester students from English Language Education Study Program. Written reflections and semi-structured interviews were chosen as the primary data collection methods. In analyzing the data, Thematic Analysis was employed in this study. The researchers described the participants’ self-reflections and transcribed their interviews. This study revealed two important results. First, there was an influence of participants' educational backgrounds on their perception of self-efficacy in English-speaking skills. Second, the participants had their strategies in overcoming the difficulties that they experienced in speaking. The results of the study showed that out-of-Java students have high self-efficacy beliefs which increase with their time at university and can improve their English-speaking skills by applying some learning strategies.
High-School Students’ Beliefs about Oral Corrective Feedback in EFL Classroom: A Survey Study
Authors: Mawarni Fadhila Intan , Murtafi’ah Banatul
Published: July 2023

Making mistakes is a typical occurrence for language learners, and it is also a necessary component of the learning process, especially in learning English as a foreign language. Mistakes or errors that often occur if not immediately corrected will affect their communication and focus in learning English. Error correction is still debated whether what kind of error should be corrected and who has more right to give oral corrective feedback (OCF). Therefore, this study aims to investigate students' beliefs about the target and source of oral corrective feedback (OCF).  This study used a quantitative method with 226 students from public senior high school as respondents in the study. This study used an instrument called Students beliefs about target and sources of OCF developed by Ha and Nguyen (2021). There were 17 items which were divided into 2 aspects (i.e., target and sources). The data were then analyzed by using SPSS and Microsoft Excel. In conclusion, Students believed that all forms of errors, particularly those affecting communication, should be corrected. However, they also emphasized that mistakes should be corrected even if they did not interfere with communication or the lesson. Moreover, This study also discovered that students wished their teachers had provided them an opportunity to practice offering feedback to each other and to encourage self-correction because it was beneficial. The result showed that students were positive in receiving all kinds of errors to be corrected and show that the teacher is not the only one who can provide feedback to them.
Methodik und Systematik der empirischen Bildungsforschung
Authors: Minnameier Gerhard , Oberwimmer Konrad , Steger Martin , Wenzl Thomas
Published: July 2023

Der systematische Blick auf die pädagogische Wirklichkeit
Spätestens seit Pisa werden Schulen in vielfältiger Weise mit empirischer Bildungsforschung konfrontiert, die es nicht nur zu verstehen, sondern auch kritisch zu reflektieren gilt.
Das Buch stellt qualitative und quantitative Methoden der empirischen Bildungsforschung anhand von konkreten Beispielen aus der Forschungspraxis vor.
Schriftspracherwerb im Kontext digitaler Medien
Authors: Hillesheim Karoline , Menzel Dirk
Published: July 2023

Digitale Lehr- und Lernszenarien im Schriftspracherwerb
Wie können Kinder erfolgreich Lesen und Schreiben lernen? Angesichts der wachsenden Heterogenität und der Möglichkeiten digitaler Medien erscheint die Frage dringender denn je. Das vorliegende Buch zeigt, wie Kinder sich diese Kulturtechniken im inklusiven Grundschulunterricht aneignen können. Dabei werden digitale Medien eingesetzt, wenn sie im Hinblick auf den Lernerfolg der einzelnen Kinder einen Zugewinn versprechen.
Lehrbuch der Psychotraumatologie
Authors: Fischer Gottfried , Riedesser Peter
Published: July 2023

Seelische Verletzungen, ihre Ursachen und Folgen, Prävention, Rehabilitation und therapeutische Möglichkeiten – von diesen Fragen und Problemen handelt dieses Standardwerk der Psychotraumatologie. Die Autoren stellen ein allgemeines Verlaufsmodell vor, analysieren die Unterschiede des individuellen Traumaerlebens sowie spezielle traumatisierende Situationen wie z.B. Mobbing, Gewaltkriminalität, Kriegstraumata, Flucht und Vertreibung.
Verschiedene Therapieformen (psychodynamisch, verhaltenstherapeutisch, EMDR, Psychotraumatherapie des Körpers, Psychopharmakotherapie) werden erklärt und kritisch eingeordnet.