bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPARATIVE STUDY OF MULTI USER BROADCAST AUTHENTICATION IN WIRELESS SENSOR NETWORK
Authors: PRASUNA P. , HEMALATHA DR. R.
Published: January 2021

Wireless sensor network (WSN) is an emerging technology consisting of spatially distributed sensor nodes, which can cooperatively monitor physical or environmental conditions. The major resource constrain of WSN are, low processing, energy and storage capabilities. Broadcast is widely used communication method in WSN environment. In most of the sensor networks, the sink node sends broadcast information to all other sensor nodes. Broadcast authentication is an important security mechanism in WSN, as it allows mobile users to broadcast messages to multiple sensor nodes in a secured way. While variety of multiuser broadcast authentication approaches are being developed, a lot of research is going on in the security field at rapid pace. However this field lacks a common integrated platform to provide a comprehensive comparison of seemingly unconnected but linked issues .In this article a pilot survey is performed to classify the, already proposed multiuser broadcast authentication approaches. This comparative survey is based on the objective, design principles and the performance of multiuser broadcast authentication approaches.
WEB BASED SERVICE FOR DIABETES PATIENT MONITORING SENSORS
Authors: RANI M. USHA , GOUTHAM J. , MONICKA S. , ANUPA ELIZABETH P.
Published: January 2021

Diabetes mellitus is a major cause of blindness, renal failure, amputation, heart attacks and stroke. For a diabetes patient, many factors are to be considered. Change in the meal may cause unpredictable changes in blood sugar levels. The diabetes patient monitoring considers these factors and proposes a solution using the sensors like glucometer sensor, blood Pressure sensor and the RFID tag with arduino given to the individual patients. The internet of things integrates many technologies, such as Internet, Zigbee, Bluetooth, infrared, Wi-Fi, GPRS, 3G, etc., This paper provides low cost global connectivity between the patients personal device and the patient’s web portal that updates the personal details, drugs remainder and the blood sugar level. When there is an increase, an automatic update is sent by a phone call or an SMS to the personal doctor.
Performance Characteristics of an Four Stroke Compression Ignition Engine by Arranging Convergent Divergent Nozzle in the Intake Manifold
Authors: Chandramouli M. , Pandurangadu V. , Phaneendra V. CVS
Published: January 2021

Growing demands on reduction of Internal Combustion Engine fuel consumption with increase of its performance new designs and optimization of existing ones are introduced. Air motion in CI Engine influences the atomization and distribution of fuel injected in the air charge. Better atomization of Injected fuel allows for a more complete burn and helps to reduce the engine Knock. A four stroke compression ignition engine with power 9 H.P and rated speed 1500 rpm is selected for the present work to investigate the performance characteristics. The swirl motion of the air is an important parameter in optimizing the performance of the engine. In order to increase the air velocity in the inlet manifold a convergent-divergent nozzle is used. The rise in velocity with the use of nozzle generates turbulence at the exit of the manifold which facilitates for better combustion of injected fuel. The Performance characteristics were calculated without nozzle and with out nozzle in the inlet manifold and compared.
Experimental Investigation of Lobe Coupling for Formulation of an Approximate Generalized Experimental Data Based Model
Authors: Bhaiswar V. N. , Modak J. P. , Singh M. P.
Published: January 2021

This paper presents an approach to establish operational characteristics of ball joint-lobe type coupling by performing extensive experimentation. The experimentation must perform by changing independent physical quantities of the coupling over a wide range and response data is gathered. Based on the response data, the mathematical model is formulated correlating the responses in terms of independent variables. These models can be used as a design data for this coupling. Because of complexity in kinematics and dynamics of coupling, logic based modeling is difficult for this type of coupling. This type of coupling is mainly used in harvester. Thus, this research outcome is useful in the design of mechanical transmission system of harvester. An emphasis is laid on the study of response of the coupling towards the variation in misalignment.
GSM Based Motor Monitoring and Speed Control
Authors: Bhaskar V. , Manohar T. Gowri
Published: January 2021

In this paper, the design aspects of an embedded device which can control up to 8 devices by sending a specific SMS message from a mobile phone are presented. This controller is extremely handy at places where we have to control the ON and OFF
switching of the devices but no wired connection to that place is available. To implement this, a GSM modem is connected to a programmed microcontroller which would receive the SMS from a reference cell phone. The control signal part of the received SMS is extracted and is changed to microcontroller-preferred format. A PC which is connected to the microcontroller using a serial communication through RS232 can be used for monitoring and transmission of the control signals to the modem. The monitoring is also done by interfacing a LCD to the microcontroller. AT commands were used for controlling the functionality of modem’s (Global Systems for Mobile Communication) is vastly used because of its simplicity in both transmitter and receiver design, can operate at 900 or 1800MHZ band, faster, more reliable and globally network. Here the system is capable of controlling the motor by receiving control message from an authorized mobile number. Microcontroller is the heart of our system, which controls the overall operation of our system. System is always alert for receiving SMS from valid number and that message can be displayed on the LCD (Liquid Crystal Display).
In the project work undertaken, GSM technology based automatic control system is designed to monitor and control speed of an Induction motor/DC motor and also performs necessary operation like start, stop, reverse the rotation ext.
Present of Three-layered hydro-forming analysis of a new hybrid sandwich tubes using finite element method
Authors: Karami J. Shahbazi , Payganeh G. , Malekzadeh K.
Published: January 2021

Multi-layered tube hydro-forming is suitable to produce multi-layered joints to be used in special application in many industries. With using a middle layer of foam and making sandwich structures, tube bending strength increases when external loads are applied. Also because of the foam is high energy absorption, in the pipelines of major industries such as the nuclear, strength increases when natural disasters, especially earthquakes
happen. In this paper for the first time, three-layered new sandwich tube (inner layer of copper, middle layer of aluminum foam and outer layer of annealed brass) hydroforming processes were numerically simulated using finite element method by ABAQUS/Explicit 6.10. As the result of three-layered sandwich tube hydro-forming not reported in the literature, the results of this paper are compared with the latest experimental result of bi-layered tube hydro-forming find in literature by approaching the thickness of middle layer to zero. Finite element analysis shows that numerical and experimental results have a
good agreement
Increasing Productivity by Reducing Manufacturing Lead Time through Value Stream Mapping
Authors: Yadav Renu , Shastri Ashish , Rathore Mithlesh
Published: January 2021

To survive in today’s competitive business world, companies require small lead times, low costs and high customer service levels. As such, companies pay more effort to reduce their manufacturing lead times. Value stream mapping (VSM) technique has been used on a broad scale in big companies such as Toyota and Boeing. This paper considers the implementation of value stream mapping technique in manufacturing helical springs by railway spring manufacturing company. It focuses on product family, current state map improvements and the future state map. The aim is to identify waste in the form of non value added activities & processes and then removing them to improve the performance of the company. Current state map is prepared to describe the existing position and various problem areas.. Future state map is prepared to show the proposed improvement action plans. The achievements of value stream implementation are reduction in lead time, cycle time and inventory level. It was
found that even a small company can make significant improvements by adopting VSM technology. It was concluded that if we adopt the VSM technique the company could reduce the manufacturing lead time from 36.86 days to 34.06 days.
Optimization of Turning Process Parameters for Their Effect on En 8 Material Work piece Hardness by Using Taguchi Parametric Optimization Method
Authors: Yadav Ashish , Bangar Ajay , Sharma Rajan , Pal Deepak
Published: January 2021

A common method to manufacture parts to a specific dimension involves the removal of excess material by machining operation with the help of cutting tool. Turning process is the one of the methods to remove material from cylindrical and non-cylindrical parts. In this work the relation between change in hardness caused on the material surface
due the turning operation with respect to different machining parameters like spindle speed, feed and depth of cut have been investigated. Taguchi method has been used to plan the experiments and EN 8 metal selected as a work piece and coated carbide tool as a tool material in this work and hardness after turning has been measured on Rockwell scale. The obtained experimental data has been analyzed using signal to noise and. The main effects have been calculated and percentage contribution of various process parameters affecting hardness also determined.
Alternate Solution for effective Dust Suppression in Thermal Power Plant
Authors: Mehrotra Prashant , Dubey Mukesh , Goyal Sanjay , Haider Rehan
Published: January 2021

Many thermal power plants use coal as their fuel. To handle the coal, each power station is equipped with a coal handling plant. The coal has to be sized, processed, and handled which should be done effectively and efficiently. While working in the coal handling plant the major factor which reduces staff efficiency is the working environment i.e. a dusty atmosphere. Lots of care is always taken to reduce dust emission. Generally all systems used in power station coal handling plants are wet dust suppression systems. In this paper the reasons for failure of these type of dust suppression system are discussed. The remedy for the improvement of this system is also given in this paper. The existing system can be easily modified by using ultrasonic system. The spray discharge should be proportional with dust emission. The solenoid valve should be open with proportion with quantity of dust generation. The possibility of such type of this system is discussed in this
paper.
Analysis of Exergy and Energy of Gasifier Systems for Coal-to-Fuel
Authors: Sharma Nishant , Gupta Bhupendra , Chauhan Ranjeet Pratap Singh
Published: January 2021

The purpose of this study is to investigate the performance features of coal-to-fuel systems based on different gasification technologies. The target products are the Fischer–Tropsch synthetic crude and synthetic natural gas. Two types of entrained-flow gasifierbased coal-to-fuel systems are simulated and their performance features are discussed. One is a single-stage water quench cooling entrained-flow gasifier, and another one is a two-stage syngas cooling entrained-flow gasifier. The conservation of energy (first law of thermodynamics) and the quality of energy (second law of thermodynamics) for the systems are both investigated. The results of exergy analysis provide insights about the
potential targets for technology improvement. The features of different gasifier-based coal-to-fuel systems are discussed. The results provide information about the research and development priorities in future.
Optimization of Grinding Parameters for Minimum Surface Roughness by Taguchi Parametric Optimization Technique
Authors: Pal Deepak , Bangar Ajay , Sharma Rajan , Yadav Ashish
Published: January 2021

Cylindrical grinding is one of the important metal cutting processes used extensively in the finishing operations. Surface finish is the important output responses in the production with respect to quantity and quality respectively. The Experiments are conducted on universal tool and cutter grinding machine with L9 Orthogonal array with input
machining variables as work speed, grinding wheel grades and hardness of material. The developed model can be used by the different manufacturing firms to select right combination of machining parameters to achieve an optimal surface roughness (Ra).The results reveals surface roughness (Ra).The predicted optimal values for Ra for Cylindrical grinding process is 1.07 Ra respectively. The results are further confirmed by conducting confirmation experiments.
Complete Design and Finite Element Analysis of an all Terrain Vehicle
Authors: Nayak Amrit Om , Kalaivanan S. , Manikandan D. , Ramkumar G. , Manoj T. , Kannan M.A.
Published: January 2021

We have tried to design an all terrain vehicle that meets international standards and is also cost effective at the same time. We have focused on every single system to improve the performance of each component. Our vehicle can navigate through almost all terrain, which ultimately is the objective behind the making of any all terrain vehicle. We began the task of designing by conducting extensive research of each main component of the vehicle. We did not want to design certain areas such as the frame, and then make the rest to fit. We considered each component to be significant, and thereby designed the vehicle as a whole trying to optimize each component while constantly considering how other components would be affected. This forced us to think outside the box, research more thoroughly, and redesign components along the way in order to have a successful design. We used the necessary parameters to create a Qualitative Function Diagram (QFD) to determine which parameters were the most critical. These key parameters ranging from most critical to least critical are safety, reliability, low cost, ease of operation and maintenance, and overall performance.
Review of the selection Criteria for energy auditor to identify the energy efficient projects
Authors: Verma Jitendra , Dubey Mukesh , Ojha Arvind , Bangar Ajay , goyal Sanjay
Published: January 2021

This study indicated the role of energy auditor to identify the energy efficient projects. Three main types of audits are: Preliminary, Single Purpose, and Comprehensive. Selecting the appropriate type of audit for your facility saves you time and money. Each type is distinguished by the level of detail and analysis required to complete the audit. The less detailed the audit, the less accurate the estimates of project costs and energy savings. Depending on your organization’s contracting requirements, the consultant who will conduct the energy audit and prepare the technical report can be selected either by sole source or competitive bid. The cost of an audit can be determined through price negotiations or competitive bidding. In either case, you must inform the bidders of the scope of the audit and its minimum reporting and analytical requirements, such as those
contained in the Energy Commission’s feasibility study guide. This is to ensure that you are getting audit costs for comparable work.
Analysis of a Biomechanical Model for Safe Lifting Using Matlab Simulation
Authors: Saraswat Neeraj , Sharma Shikhar , Jain Rahul , Pathak Deepak
Published: January 2021

This paper describes the development of a multi-body biomechanical model that can be used to assess the risk of low back disorders. A multi-segment link model is considered in this paper which represents a human body in which links represent various limbs
such as arms, leg, foot, thigh, thorax etc. Force balance and moment balance equations are formed at different joints. Equations formed are written in form of a MATLAB program to determine the relationship between load lifted and muscle moment generated due to load. This biomechanical model was employed to clarify the role of various biomechanical factors such as magnitude of load, shape, size and location of load involved in the load lifting process. To determine safe lifting postures on the basis of model such that the reaction force at the L4 / L5 joint is minimum subjected to other joints not being overstressed is carried out. Various moment-load relationships between various joints are computed along with momentmoment relationships between various joints. The model is able to suggest the safe posture in manual material handling tasks. A geometric model for simulations of postural control is obtained with Matlab/Simulink software .
Structural Synthesis of 6 Bar Mechanisms as Mechanically Constrained 3R Chains
Authors: Eleashy H. , Elgayyar M.S.
Published: January 2021

In this paper, we consider the planar robot formed by 3R chain. To mechanically constrain the relative movement of the joints so that the end-effector reaches a specified set of task positions, two additional links are added to the 3R chain. Graphical representation is presented for enumeration process. Reverse transformation technique is developed to reconstruct 6-bar mechanisms from their corresponding graphs. Structural synthesis process yields designs for seven different forms of a six-bar linkage the Watt I and Stephenson I, II, and III six-bar linkages.
Effect of Alkaline Treatment on Mechanical and Thermal Properties Oftypha Angustifolia Fiber Reinforced Composites
Authors: Dedeepya M. , Raju T.Dharma , Kumar T. Jayananda
Published: January 2021

Sustainable development is increasingly becoming a priority of governments and businered which is driven by growing environmental awareness. Much academic research explores new ways to create greener and environmentally friendlier materials for variety of aplications ranging from aeronautic, automotive and construction industry. The natural fibre reinforced composite has the advantage of being light weight, availability, strong, cheap, safe, ease of recycling, sustainability, renewability hermal and acoustic insulation, saving of fabrication energy and carbon dioxide neutrality.
The composites are molded with unsaturated polyester resin matrix and reinforced with natural fibre. Five identical specimens are prepared for each fibre content. In this study, mechanical properties of composite such as tensile strength, tensile modulus were
measured using universal testing machine. Guarded hot plate apparatus was used to measure the thermal conductivity of natural fibre typha angustifolia reinforced composite.. The results shows that mechanical properties, increased as fiber content increased. Thermal conductivity of composite is in the range of 0.168 w/m k to 0.187 w/m k and thermal conductivity decreased about 11.3% as fiber content increased. The newly developed composite material has lower thermal conductivity and is used as an insulating material to save energy.
Analysis of Limiters for ADITYA Tokamak
Authors: Kodarkar Nakul M. , Gore Abhay S. , Bhatt S. B. , Rodge M. K.
Published: January 2021

ADITYA Tokamak is a medium size ohmically heated tokamak. The hot plasma interacts with the vacuum vessel wall introducing impurities in the plasma and also damages the vacuum vessel wall. Limiter is used to reduce plasma - wall interaction and protect the vacuum vessel wall as well as inside components. It also controls impurity generation. ADITYA has a set of two types of limiters (i) Safety limiter (ii) a Poloidal limiter.
Formally all the limiters are made of shaped graphite tiles fixed on stainless steel base plates. But graphite tiles are responsible for low Z impurities in plasma. To avoid these low Z impurities Molybdenum tiles are suggested. In this paper, we are going to present
ansys analysis of surface temperature rise of molybdenum tiles compared to graphite tiles when used as Poloidal Limiter during plasma discharges in Aditya tokamak. The analysis is carried by ANSYS 11.0 software using Transient Thermal Analysis module. The results are compared with experimental results for graphite tiles. The graphite and molybdenum tiles are analyzed under same conditions.
TPM Review in a Sheet Metal Parts Manufacturing Company
Authors: Mhetre R.S. , Dhake R.J.
Published: January 2021

In all manufacturing plants the machines and equipment’s are influenced by deterioration in performance due to its age and use, obsolescence due to improvement in technology and failure due to unplanned maintenance Improper maintenance leads to
unavailability of machine Hence the effective maintenance becomes useful in improving equipment life, reducing manufacturing cost, improving quality and minimizing the many unforeseen losses which are responsible for reducing the potential of the
manufacturing plant. This paper addresses the issue by taking a case study of a manufacturing company. Detailed analysis and calculations are carried out on data collected through discussion, interview and observations. The overall equipment effectiveness (OEE) calculation is used to find out the current situation of the production system of the case company. It calculates the availability of the production system which shows that maintenance system’s effectiveness. The quality rate calculations of the work stations show the conditions of the machines and the worker’s skill and the calculations of the performance efficiency of the work stations show the utilization of the machines. The result of analysis is presented here with recommendations to the company.
Effect of β/α Strength Ratio on the Stress-Strain Curve of Beta Titanium Alloy by Finite Element Modelling
Authors: G Srinivasu , Rao R. N.
Published: January 2021

A systematic study was undertaken to determine the effect of the β/α strength ratio on the stress-strain behavior of near beta titanium alloy by the finite element method where the volume percent of the second phase was constant at 16 vol.%. The β/α strength ratio of the harder β phase to the softer α phase was varied from approximately 4 to 5 where the a phase strength (0.2% YS) was kept constant at 296 MPa. It was found that the flow stress did not vary linearly with the strength ratio. Stress gradients were found in both α and β phases and the nature of the stress gradient was found to depend on α particle shape. In some locations higher stresses were found in near the interface. In β, the stresses were generally higher near the interfaces.
Structural Analysis and Optimization A Must in Spacecraft Projects
Authors: Audu Aminu Muhammed , Hai Huang
Published: January 2021

An efficient weight reduction and improved stiffness requirements of a practical spacecraft Trainsat-1 satellite are presented, utilizing abound high efficient method used in MSC. Nastran. Numerical example was also given to test the validity of the software in spacecraft application.
TOTAL HARMONIC DISTORTION REDUCTION BY USING SSSC WITH AND WITHOUT BVSI
Authors: PRAKASH SURYA , VERMA KAMTA PRASAD , SINGH BRIJESH
Published: January 2021

This electronic document is a “live” template. The various In present a new Static Synchronous Series Compensator (SSSC) for the control of active power flow on a transmission line is proposed and its effectiveness is investigated. The new SSSC is based on injecting a voltage in a given line to counter or augment the voltage &Power
produced by the inductive reactance of the line. The resulting compensator, therefore, emulates the control of transmission line reactance and thus, it assists in control by the power transmission capacity. The voltage to be injected in a line is produced by a Binary Voltage Source Inverter (BVSI). BVSI is an attractive recently proposed Voltage Source Inverter. Its output contains very little harmonics and it utilizes very few dc sources unlike conventional multi-level VSIs. The % phase output of the BVSI is synchronized to the line frequency and its phase is arranged to be in or out of phase with the Line
reactance drop. The proposed BVSI-SSSC is realized by using three binary proportioned dc sources, which may be appropriately dimensioned capacitors. The resulting output of a BVSI-SSSC is a 15-step ac voltage waveform. The BVSISSSC has a sophisticated set of coordinated controlled which ensure: BVSI frequency is in synchronism with the system frequency, firing pulses are regulated for inverter valves to ensure minimum harmonic content, the selection of Modulation Index and arrangement regulates an appropriate phase relationship to create the desired change in the power flow, and
adjustment of firing angles to ensure that the capacitors creating dc binary proportioned sources maintain desired charge on them. Armillary controls may be added to create positive system damping through active power control, and voltage
dependent controllers may be added to limit over and under voltage (charging) of capacitors during fault conditions.
POST INSULATOR DESIGN OPTIMIZATION IN MEDIUM VOLTAGE SWITCHGEAR
Authors: BASUTKAR SHASHWAT S. , PANDE DR V.N.
Published: January 2021

There has been constant development in the energy sector. As the trend of SMART grid is increasing, modern power systems require smarter and reliable switchgear. In this view, the optimum design of switchgear and components acquired prime importance. This can be achieved using various optimization techniques. In this paper, novel optimum design
of post insulator is proposed and carried out. The design gives a standard value of capacitance for the indicating system and also solves problem of partial discharge in Indian system. The design is first carried out using 3D MAXWELL software tool for 33kv post insulator which gives drawing in AUTOCAD. The output design parameters obtained in 3D MAXWELL are used for optimization in MATLAB.
AN ASSESSMENT OF POWER-USE PROFILE IN DESKTOP COMPUTERS
Authors: FACHE V. O , UDOH B. E
Published: January 2021

Knowing the actual power requirement of each individual component in a desktop computer is useful when sizing a power supply or when upgrading the PC. In this paper the power demand by various components within six different computer systems was investigated. Measurements of the actual current drawn from each voltage rail when idle and when in use were made and the data examined. The results obtained showed that the total power drawn at idle and on CPU load test was mainly due to the load demand on the +12V rails and this varied significantly between the computer systems; meanwhile +5V and +3.3V lines drew very little power and the total power consumed did not vary significantly between systems on idle state. The assessment revealed that it is highly unlikely that a modern computer system will ever overload either the +5V or +3.3V rails of an ATX12V 2.x compliant power supply; the +12 rails on the other hand, are very heavily used especially under load. Thus, it is very likely that the ratings for the +12V rails is more important than the total wattage rating when it comes choosing a power supply unit for a computer system.
Complex Power Flow Sensitivity Index based Optimal Location and Tuning of Thyristor Controlled Series Capacitor using BAT Algorithm to enhance Line based Voltage Stability
Authors: Rao B.Venkateswara , Kumar G.V.Nagesh
Published: January 2021

Modern electric power utilities are facing many challenges due to increasing complexity in their operation and structure. In the recent times, one of the problems that got
wide attention is the power system instabilities due to lack of new transmission facilities. Existing transmission facilities can be better utilized by installing Flexible AC Transmission System (FACTS) devices. The TCSC is the most effective FACTS device used to increase the power transferable capabilities of the transmission line. This paper presents a Sensitivity analysis based Complex Power Flow Sensitivity Index (CPSI) calculated for placing the TCSC at an appropriate location. Once the location to install the TCSC is determined, the optimal tuning of the TCSC is determined through BAT Algorithm. The BAT Algorithm is implemented on multi-criterion objective function to minimize total real power loss, total voltage magnitude deviations, the fuel cost of
total real power generation and the branch loading to obtain the Optimal Power Flow. Simulations have been carried out in MATLAB software for the IEEE 57-bus system. The results have been taken for BAT Algorithm based Optimal Power Flow without and with TCSC. The results obtained with BAT Algorithm were compared with Genetic Algorithm (GA).
Dişi Defne (Laurus nobilis L.) Genotiplerinde Meyve Yağ Asitleri Kompozisyonlarının Belirlenmesi
Authors: KOÇER Oğuzhan , AYANOĞLU Filiz
Published: January 2021

Ülkemizde, özellikle Akdeniz, Ege ve Karadeniz bölgelerinde yoğun şekilde bulunan defne (Laurus nobilis L.), Hatay florasında da yaygın bir şekilde elde edilmektedir. Hatay ilinde defne meyvelerinden elde edilen yağ genel olarak sabun üretiminde kullanılmaktadır. Bu çalışmada seçilmiş defne genotiplerin meyve ve yağ özellikleri açısından değerlendirilmesi amaçlanmıştır. Bu amaçla, çalışmada Hatay’ın Samandağ ve Yayladağı ilçelerinden ön seleksiyonla seçilmiş 27 dişi defne genotipinin yağ kaliteleri üç tekrarlamalı olarak iki yıl süre ile incelenmiştir. GC/MS analizlerine göre sabit yağların ana bileşenleri ise; oleik asit (%29,92 – 38,46), laurik asit (%10,75 – 18,69), palmitik asit (%16,31 – 21,97) ve linoleik asit (%20,94 – 24,95) olduğu tespit edilmiştir. Sabit yağ oranı yüksek olarak belirlenen ER14 (%32,74), ER16 (%31,52) ve ER12 (%30,47) genotipleri ümitvar genotipler olarak belirlenmiştir.
Midwife’s implementation of maternal and neonatal care after cesarean section at obstetric department, national hospital of obstetrics and gynecology in 2018
Authors: Anh Tran Thi Tu , Lan Vu Thi Hoang , Hung Do Manh
Published: January 2021

Aim: Description of Midwife’s implementation of maternal and neonatal care after cesarean section atObstetric Department, National Hospital of Obstetrics and Gynecology in 2018.Methodology: A ramdomized, cross sectional study was conducted on 50 midwifes giving care for motherand child care after cesarean section.Result: 86% of midwife implements and follows the whole procedure of postnatal care after caesareansection; 32% of midwife follows the preparation process with good communication skill; 88% of them followthe whole process of maternal and neonatal care; only 22% of them follow the whole procedure of guidanceand consultation of maternal care.Conclusion: Postnatal care after caesarean section is implemented well in management, examination,maternal and neonatal care; however, it has not been well implemented in preparation, communication andconsultation.
Epidemiological features of children with attention deficit hyperactivity disorder (ADHD) at the National Children’s Hospital in 2016
Authors: Minh Thanh Ngoc , Hai Le Thanh , Hung Do Manh
Published: January 2021

Aim: To describe some epidemiologicalfeatures of children with ADHD at the National Children’s Hospitalin 2016Methods: A cross-sectional combined with qualitative method was conducted on 105 patients havingexamination at the hospital, using VADPRS.Result: There are 91.43% of children with ADHD, in which ADHD combined hyperactivity and attentiondeficit accounts for 58.1%, hyperactive ADHD accounts for 13.3%, inattentive ADHD accounts for 20%. Mostof the cases are male with 87.5%; Age: 6-9years rank the highest with 88,29%; living area: mostpatients live inthe countryside 55.21%; most of the parents have high school diploma with 78.13%. There is no relationbetween kinds of ADHD andgender, age, livingarea, parents occupation and qualification (p>0.05).Conclusion: Patients with ADHD have common features of combined ADHD, male, age from 6 - 9, living inthe countryside and parents having high school diploma.
Survey of Waiting Time for Examination at the Medical Examination Department 2 of the National Children’s Hospital in 2018
Authors: Khanh Dang Thi Hong , Ut Nguyen Thi , Chien Nguyen Thi , Ha Giang Thi Thanh , Linh Vu Thi Thuy
Published: January 2021

Objectives: To measure the waiting time for medical visit at the Outpatient Department 2, NationalChildren’s Hospital in 2018.Study method: Cross sectional design combines quantitative study.Result:The study on waiting time for medical visit of2060 patients showed that: the mean follow- up time was 32.5minutes. Average time for 01 technique was 137 minutes. The median time for medical consultation and 2techniques implemented was 162 minutes. The median time for the medical consultation and 03 techniquesimplemented was 208 minutes. Among sub- clinical techniques, blood test took the maximum time (137minutes).Conclusion: The waiting time for medical consultation was standardized according to the Decision 1313 /QĐ-BYT in 2013; Approximately 70 patients per visit / 8 hours.
MÔ TẢ TRƯỜNG HỢP TĂNG SINH TẾ BÀO LYMPHO LIÊN QUAN NHIỄM SẮC THỂ X TYPE 1 TẠI BỆNH VIỆN NHI ĐỒNG I
Authors: Thu Cuc Cao Tran , Tuan Nguyen Minh , Lien Anh Phan Nguyen
Published: January 2021

Đặt vấn đề: Bệnh tăng sinh tế bào lympho liên quan nhiễm sắc thể X type 1 (XLP1) là bệnh di truyền hiếm gặp do đột biến gen SH2D1A/SAP. Biểu hiện có thể là hội chứng thực bào máu (HCTBM), u lympho, thiếu hụt gammaglobullin, thường khởi phát sau nhiễm EBV.

Mục tiêu  và phương pháp: Mô tả triệu chứng lâm sàng, cận lâm sàng và điều trị bệnh nhân nam 2 tuổi mang đột  biến gen SH2D1A gây bệnh XLP1.

Kết quả: Trẻ nam 12 tháng tuổi khởi phát triệu chứng sốt kéo dài 2 tuần, gan lách hạch to, tăng bạch cầu (25 – 35 x 10^9/L), chủ yếu lympho (15 – 20 x 10^9/L), thiếu máu và giảm tiểu cầu nhẹ, ferrtin tăng nhẹ, tủy đồ có hiện tượng thực bào máu, EBV tải lượng cao (150.600 copies/ml), nồng độ kháng thể IgG, IgM, IgA, IgE bình thường theo tuổi. Tiền căn có anh trai 2 tuổi mất vì HCTBM – Nhiễm EBV. Bệnh nhân được chẩn đoán HCTBM – Nhiễm EBV theo HLH – 2004, điều trị với IVIG và Dexamethasone trong 8 tuần rồi ngưng. Sau 2 tháng, bệnh nhân có viêm màng não kéo dài 8 tuần kèm giảm nặng các nồng độ kháng thể: IgG: 100 – 200 mg/dL, IgA: 5 – 15 mg/dL, IgM: 7 – 20 mg/dL, phân tích quần thể tế bào lympho bình thường theo tuổi. Trong 12 tháng sau đó, bệnh nhân được truyền IVIG mỗi tháng. Kết quả phân tích 23000 gen xác định mang đột biến SH2D1A trên nhiễm sắc thể X (nonsynonymous – exon1:c.A1G:p.M1V). Đây là một bệnh di truyền hiếm gặp, phù hợp biểu hiện lâm sàng.

Kết luận: HCBTM liên quan đến EBV trên trẻ nam có diễn tiến thiếu hụt gamaglobulin nên chú ý tìm gen XLP.
TỔNG QUAN VỀ NGƯNG THỞ TẮC NGHẼN KHI NGỦ Ở TRẺ EM BỊ HEN PHẾ QUẢN
Authors: Quy Si Duong , Quynh Le Nguyen Ngoc , Hoang Yen Nguyen , Thanh Mai Nguyen Thi , Minh Huong Le Thi
Published: January 2021

Hội chứng ngưng thở tắc nghẽn khi ngủ (NTTNKN) là dạng phổ biến nhất của rối loạn hô hấp trong khi ngủ. NTTNKN ở trẻ em được coi là một trong những nguyên nhân gây ra các vấn đề sức khỏe nghiêm trọngở trẻ em. Bệnh thường gặp ở trẻ từ 2- 8 tuổi và liên quan với sự phát triển của mô bạch huyết quanh đường hô hấp trên ở trẻ em. Đặc biệt NTTNKN rất thường gặp ở trẻ em bị hen phế quản (HPQ).Các nghiên cứu gần đây cho thấy HPQ và NTTNKN đều là bệnh lý viêm đường hô hấp trên và đường hô hấp dưới. Các triệu chứng tắc nghẽn của 2 bệnh này có thể giống nhau gây khó khăn cho việc chẩn đoán và điều trị. Hơn nữa, NTTNKN có thể ảnh hưởng đến hiệu quả kiểm soát HPQ, và ngược lại, mức độ nặng của hen làm tăng biểu hiện NTTNKN. NTTNKN là bệnh đồng mắc và là yếu tố nguy cơ của bệnh hen khó trị. Ở những trẻ HPQ, thầy thuốc lâm sàng cần chẩn đoán sớm NTTNKN và điều trị kip thời khi trẻ có những dấu hiệu nghi ngờ.
Tổng quan về đặc điểm di truyền trong hen phế quản
Authors: Quy Sy Duong , Bich Hanh Nguyen Thi , Minh Huong Le Thi
Published: January 2021

Nhiều nghiên cứu đã kiểm tra mối liên hệ giữa các tác dụng dược lý và đáp ứng với corticosteroid dạng hít (ICS) ở bệnh nhân hen phế quản (HPQ). Trên thực tế, một số đa hình đơn nucleotid của một số gen ứng viên đã được xác định có thể ảnh hưởng đến đáp ứng lâm sàng với ICS ở người bị HPQ. Tác dụng trực tiếp hoặc gián tiếp của chúng phụ thuộc vào vai trò của chúng trong quá trình viêm trong HPQ hoặc tác dụng chống viêm của corticosteroid. Trong số các gen được xác định, các biến thể trong T-box 21 (TBX21) và Fc đoạn của thụ thể IgE II (FCER2) đóng góp gián tiếp vào sự thay đổi trong phản ứng với ICS bằng cách thay đổi cơ chế viêm trong hen, trong khi các gen khác như CRHR1, NR3C1, STIP1, DUSP1, GLCCI1, histone deacetylase 1 (HDAC), ORMDL3, và các yếu tố tăng trưởng nội mô mạch máu (VEGF) ảnh hưởng trực tiếp đến sự thay đổi này thông qua cơ chế chống viêm của ICS. Các kết quả cho đến nay cho thấy các yếu tố di truyền tiềm năng liên quan đến đáp ứng với ICS, có thể được sử dụng để dự đoán đáp ứng điều trị cá thể của người bị HPQ với ICS.
KHẢO SÁT KHẢ NĂNG ĐÁP ỨNGCỦA IGE ĐẶC HIỆU VỚI HẢI SẢN CÓ VỎ VÀ MỐI LIÊN QUAN VỚI DỊ ỨNG MẠT BỤI NHÀ,GIÁN
Authors: Editor JPRP
Published: January 2021

Đặt vấn đề: Ngày nay tôm đóng vai trò quan trọng trong dị ứng hải sản bởi tôm được sử dụng rất rộng rãi do giá trị dinh dưỡng cao của nó. Bốn loại dị nguyên từ tôm đã được xác định thường hay gây ra dị ứng nhất là tropomyosin (TM), arginine kinase (AK), protein liên kết canxi chất cơ (SCP) và myosin chuỗi nhẹ (MLC). Bên cạnh đó, sự phản ứng chéo giữa tôm với protein của nhóm giáp xác, mạt bụi nhà và gián đã được ghi nhận, dị nguyên gây phản ứng chéo phổ biến nhất là tropomyosin. Mục đích của nghiên cứu này là khảo sát phản ứng các IgE đặc hiệu đối với các thành phần protein của tôm và đánh giá phản ứng chéo giữa một số protein của tôm với protein của mạt bụi nhà, gián. Đối tượng vàphương pháp: Tôm thẻ chân trắng và tôm sú được sử dụng để tách chiết protein. Những protein này được phân tách bằng kỹ thuật LDS-PAGE và sau đó thực hiện immunoblotting bằng cách sử dụng huyết thanh từ những bệnh nhân có tiền sử dị ứng, test lẩy da dương tính với tôm, cua, mạt bụi nhà và/hoặc gián. Kết quả: Hầu hết các IgE đặc hiệu đáp ứng với các protein có trọng lượng phân tử 21 kDa, 45 kDa và 116 kDa, chủ yếu là từ các mẫu tôm được xử lý với nhiệt độ cao. Ở những bệnh nhân dị ứng với mạt bụi nhà và/hoặc gián, không có hoặc có nồng độ thấp IgE đặc hiệu với tôm thể hiện phản ứng chéo với những protein này và rõ nhất là với protein 36 kDa tương ứng với trọng lượng phân tử tropomyosin của tôm. Kết luận: IgE đặc hiệu tăng phản ứng với các mẫu được xử lý ở nhiệt độ cao và có phản ứng chéo xảy ra giữa một số protein của tôm với protein của mạt bụi nhà, gián.
SUY GIẢM MIỄN DỊCH BẨM SINH THỂ KHIẾM KHUYẾT BÁM DÍNH BẠCH CẦU TYP I
Authors: Vân Anh Nguyễn
Published: January 2021

Khiếm khuyết bám dính bạch cầu (Leukocyte adhesion defect - LAD) là một bệnh suy giảm miễn dịch tiên phát hiếm gặp. Bệnh do đột biến gen gây mất khả năng bám dính của bạch cầu với nội mô thành mạch ảnh hưởng tới sự di chuyển của bạch cầu trung tính vào khoảng ngoại mạch. Vì vậy,  bạch cầu trung tính không di chuyển được đến vị trí nhiễm trùng, dẫn đến tình trạng giảm bạch cầu trung tính tại tổ chức trong khi lại tăng rất cao trong máu.

Dấu hiệu đặc trưng của LAD là nhiễm khuẩn nặng, không hình thành mủ tại vị trí nhiễm trùng và loét rất khó lành. Ngoài nhiễm trùng, bệnh nhân cũng có nhiều biến chứng viêm. Những biến chứng viêm này đôi khi có thể là biểu hiện lâm sàng chủ yếu của bệnh.

Đến ngày, bốn dạng thiếu hụt độ bám bạch cầu khác nhau đã được báo cáo được đặt tên theo thứ tự thời gian khám phá ra bệnh: LAD type I (LAD I), LAD II, LAD III và LAD IV [1].
Impact of Goods and Service Tax (GST) on Business and Tax Reforms in India
Authors: Verma Lavisha
Published: January 2021

Goods and Services Tax (GST) comes under Indirect Tax regime covers whole of  India replaced  various indirect taxes levied by the Central and state governments. The GST is governed by GST Council and its Chairman is Union Finance Minister of India “GST is not a tax reform in true sense, but it is a major business reform which will change the way business activities are carried in the country. The dual structure of GST is the fundamental character of our country and therefore a single GST across the country is not possible in true sense under GST ,the taxpayer will be ease the burden  of taxpayers to deal with multiple indirect taxes as under present Indirect system but GST will cost high compliance burden on the taxpayers requiring a registration in every state from where taxable activities are carried out  but it would definitely reduced cumbersome documentation and save time. This research Paper discuss about the biggest step taken in indirect tax system that is GST and challenges in implementation. The paper aims to show that GST is a merely a Business reform, not a uniform tax system.
Impact of BASEL III on India
Authors: Jain Aastha
Published: January 2021

The Basel Committee on Banking Supervision (BCBS) set the first of capital accords in 1988, called the Basel I. Due to the dynamic changes in the world of financial system Basel I gave way to Basel II. Basel II plagued with the problem of pro-cyclicality paved the way for Basel III. India adopted Basel III norms in 2012. The present paper studies the impact of Basel III on India. In the short run, it will lead to a reduction in profitability of banks, curtailed credit to the economy and it is accused of being a needless burden on the Indian banks. But in the longer run, it will keep India integrated with the rest of the world. It will make the Indian financial system stronger, more stable and sound. It boils down to a trade-off between short-term costs and long run growth benefits.
Does Taxation Effect FDI in India? An Empirical Study of Hartman Model
Authors: Kaur Amrita
Published: January 2021

In recent years, a large body of academicians and professionals has focused on the effect of tax policy on both inbound and outbound foreign direct investment. This study examines the possible effects of domestic taxes and rates of return on FDI in India. Using the econometric models given by Hartman (1984) for a sixteen-year sample period, i.e. 1992-2007, tax policies are found to be significantly affecting FDI in India. The model was empirically investigated in sixteen forms with different ratio of FDI to different type of GNPs as dependent variables.
The Implication of Internal Social Media on Employee Engagement in IT Companies
Authors: Varadharajulu Pavithra , Meenakumari S.
Published: January 2021

The Internal Social Media is a tool and an opportunity for organizations to examine the implications of social media and to upgrade employee engagement. The usage of internal social media applications enables employees to share the personal and professional information and better communication amongst themselves. Increase in the usage of internal social media in corporates degrades work in an organization. In this context, very little research has been conducted to explore the impact of social media tool on the working structure, supervision and work empowerment amongst the employees.  This paper focuses on the relationship between internal social media usage `and employee engagement in IT sector.  The population of the study includes employees of IT sector, sample size of this study being 100 employees. This helps in creating a friendly atmosphere among employees to discuss their ideas, thereby exploring employee engagement. The results indicate that socialization tools enhance technologies, increase the effectiveness of organizational commitment and the level of efficiency in employee engagement. The usage of internal social media is also associated with the level of efficiency and innovation, entrepreneurship, communication, and acceptance of change in the organization.
Indian Children's Influence across Stages in Family Decision Making Process - an Exploratory Study
Authors: Nain Harikishni
Published: January 2021

This study examines children’s influence across stages in family decision making process while making buying decisions for child and family product in Indian rural and urban families. A cross-sectional survey method was carried out with “structured non-disguised” questionnaire to collect the primary data from the students of class eighth to twelfth in the age group of  13-to-18 years from 100 families residing in rural and 100 families residing in urban areas in Delhi, India. Statistical  tools such as mean, standard deviation and repeated measures ANOVA have been used to analyze and interpret the collected data. Children’s influence across three stages of decision making process was measured by using a ten-item scale developed by Talpade and Talpade (1995) and the reliability of the scale was assessed by calculating Cronbach alpha. The results of this study found that children in Indian families are also exerting influence in family buying decisions and (i) children’s influence in family decision making varies across decision making stages according to type of product; (ii) it is the child product for which children’s influence is higher.
DİNAMİK, KIRILGAN VE GÜÇLÜ: GÜNCEL SANATTA ‘ÇİZGİ’Yİ GEÇEN KADINLAR
Authors: SAĞLIK Esra
Published: January 2021

İnsanın sanat yapma pratiğinde en ilkel ve ilksel eylemlerden biri olan desen, klasik sanatta amacı resmin altyapısını oluşturmak ve doğayı birebir ifade etmek olan rolünden, günümüz sanatında bizatihi sanat yapma eyleminin kendisi haline gelmiştir; özellikle 2000’li yıllarla birlikte karşımıza çıkan yeni sanat pratiğinde, kendisine bienal ve uluslararası sanat fuarları gibi büyük platformlarda yer bulmaya başlamış ve dahası başlı başına büyük sanat oluşumlarına sebep olan bir ifade biçimine dönüşmüştür.

Kadınların, artık tabloların dışında yer alacak şekilde sanat sahnesine çıkışları 1970’lerdeki feminist hareket ile birlikte daha etkili ve görünür olmuştur. 1970 sonrası sanatının önemli bir damarını oluşturan kadın sanatçılar, kendilerine yüklenen ve dayatılan rolleri eleştiren sanatsal yaklaşımlarıyla yeni ve güçlü ifade biçimlerinin oluşmasını sağlamışlardır. Bu süreç ve sonrasında kadınların çizgi ile oluşturdukları sanatsal dil oldukça zengin olmuştur; feminist ifadelerden sembolik anlatımlara, toplumsal konulardan kişisel olana, hiperrealist ifadelerden kavramsal alana, soyutlama ve gerçeklik arasındaki sınırlardan çizginin bir tür performans olarak kullanılmasına kadar pek çok ifade biçimi geliştirmişlerdir. Tarihsel süreçlerde kadınların yaşadığı zorluklar göz önüne alındığında desen ayrıca kolay uygulanabilirliği, daha direkt ve herhangi bir araca gerek duymadan gerçekleşebilmesi ile kadın sanatçıların düşüncelerini gezdirdiği, araştırdığı, kayda aldığı bir ilk alan olarak da önemlidir.

Araştırmada bu pratiğin günümüz sanatındaki yeri ile biçimsel ve kavramsal yapısı, kadın sanatçıların örnekleri üzerinden incelenecektir. Biyolojik özellikleri sebep gösterilerek ev içi alanlarda tutulmaya çalışılan kadının çizgi ile gerçekleştirdiği diyalog, kişisel olandan toplumsal olana yayılan geniş bir kavramsal çerçeveyi kapsayan örnekler bağlamında değerlendirilecektir.
Influence of internal and macro factors on profitability of Indian commercial banks: empirical study
Authors: Allamy Karrar Khalaf , Mansour Ahmad Moh’d , Ahmad Anwar , Al-Homaidi Eissa A.
Published: January 2021

This review aims to study the influence of financial performance in commercial banks in India. The article used descriptive analysis, correlation matrix, and regression analysis. The results showed that firm size, capital adequacy, deposit, and inflation rate have a strongly significant influence on financial performance, while gross domestic product (GDP) has no significant impact on return on assets. The outcomes also indicated that firm size (LOGAS), capital adequacy (CA), and deposit (DP) have a negative influence on financial performance, whereas macroeconomic features as GDP and rate of inflation have a positive effect on return on assets of the current investigation. This article bridges the existing gap in the financial performance and profitability of Indian banks during the period of the study. This study also very important for users, analyses, investors, academicians, and research scholars.