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Volume 7 ~ Issue 1

 

 


Volume 7 ~ Issue 1

Research Article  open access
Development and Application of a Failure Monitoring System by Using the Vibration and Location Information of Balises in Railway Signaling
Veysel Gökdemir
Turkey
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

In this project, a failure monitoring system is developed by using the vibration and location information of balises in railway signaling. A lot of field equipment in railway are loosening and broken in time period so that they need maintenance due to the vibrations that occur due to high speed trains traffic and railway vehicles impact. Among the field equipment, balises have very important role of communication in terms of transmitting information to trains. In this scope, it is aimed to make maintenance works more efficient, have no delayed trains, detect previously failure location and intervene in failure timely, by detecting and controlling balise cases such as loosening, out of place and the data consistency error that happens because of balise physical state. In this project, the communication is provided with I2C, Modbus RTU (Remote Terminal Unit) and RS485 standards by using Arduino Uno cards and MPU6050 IMU (Inertial Measurement Unit) sensors in laboratory. Each used sensors are in slave mode and computer interface designed with C# is in master mode. Fault situations in the system are checked instant by the interface. (it is assumed to mount the IMU sensor and the Arduino circuit on the balise) it is seen that the interface responds to the sensor movements instant and the system works well in the end of test processes.

KEY WORD: Accelerometer, balise, C# interface, gyroscope, Modbus RTU, RS485, railway signaling.


Research Article  open access
Application of Kennelly'model of Running Performances to Elite Endurance Runners.
Vandewalle Henry, Md, Phd
France
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

The model of Kennelly between distance (Dlim) and exhaustion time (tlim) has been applied to the individual performances of 19 elite endurance runners (World-record holders and Olympic winners) from P. Nurmi (1920-1924) to M. Farah (2012) whose individual best performances on several different distances are known. Kennelly's model (Dlim = k tlim) can describe the individual performances of elite runners with a high accuracy (errors lower than 2 %). There is a linear relationship between parameters k and exponents  of the elite runners and the extreme values correspond to S. Coe (k = 15.8;  = 0.851) and E. Zatopek (k = 6.57; = 0.984). Exponent  can be considered as a dimensionless index of aerobic endurance which is close to 1 in the best endurance runners. If it is assumed than maximal aerobic speed can be maintained 7 min in elite endurance runners, exponent  is equal to the normalized critical speed (critical speed/maximal aerobic speed) computed from exhaustion times equal to 3 and 12.5 min in these runners..

KEY WORD: ...


Research Article  open access
Evaluation of Damage by the Reliability of the Traction Test on Polymer Test Pieces
Amal Lamarti || Abdelilah Hachim || El Had Khalid || Mohammed Elghorba
Morocco
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

In recent decades, polymers have undergone a remarkable historical development and their use has been greatly imposed by gradually dethroning most of the secular materials. These polymer materials have always distinguished themselves by their simple shaping and inexpensive price, their versatility, lightness, and chemical stability but despite their massive use in everyday life as well as in advanced technologies. Generally, these materials still not understood which requires a thorough knowledge of their chemical, physical, rheological and mechanical properties. This paper, we study the mechanical behavior of an amorphous polymer: Acrylonitrile Butadiene Styrene "ABS" by means of uniaxial tensile testing on pierced test pieces with different notch lengths ranging between 1 to 14mm.The proposed approach consists in analyzing the evolution of the global geometry of the obtained strain curves by taking into account the zones and characteristic points of these curves as well as the effect of the damage on the mechanical behavior of the polymer ABS, in order to visualize the evolution of the damage by a static model.

KEY WORD: Acrylonitrile Butadiene Styrene ABS, damage, Polymer test pieces, sudden rupture, tensile testing.


Research Article  open access
Crystallization of L-Glutamic Acid: Mechanism of Heterogeneous β -Form Nucleation
Khuu Chau Quang|| Dang Truong Giang|| Trinh Thi Thanh Huyen|| Nguyen Anh Tuan
Vietnam
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

The mechanism of heterogeneous nucleation of β-form L-glutamic acid was deeply investigated in cooling crystallization. The present study found that the β-form crystals were epitaxially grown on the α-form crystals and they were preferably crystallized on the (011) and (001) surfaces instead of the (111) surfaces of α-form crystals. This result was explained via the molecular simulation. The molecular simulation indicated that the different surfaces of α-form crystals provided different functional groups, resulting in different sites for the heterogeneous nucleation of β-form crystals. Here, the functional group were COO-, C=O and O-H on the (011) and (001) surfaces of α-form crystals, respectively, while it was the NH3+ on the (111) surfaces of α-form crystals. As such, the degree of lattice matching (E) between the β-form crystals and the various surfaces of α-form crystal was distinguished, where the degree of lattice matching (E) between the β-form crystals and the (011), (001) and (111) surfaces of α-form crystal were estimated as 5.30, 5.25 and 2.39, respectively, implying that the (011) and (001) surfaces of α-form crystal were more favorable to generate the heterogeneous nucleation of β-form crystals than the (111) surfaces of α-form crystal.

KEY WORD: crystallization, crystallography, crystal growth, nucleation, polymorphism


Research Article  open access
A Study of Automated Decision Making Systems
Dr. (Mrs). Ananthi Sheshasaayee || Bhargavi.K
India
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

The decision making process of many operations are dependent on analysing very large data sets, previous decisions and their results. The information generated from the large data sets are used as an input for making decisions. Since the decisions to be taken in day to day operations are expanding, the time taken for manual decision making is also expanding. In order to reduce the time, cost and to increase the efficiency and accuracy, which are the most important things for customer satisfaction, many organisations are adopting the automated decision making systems. This paper is about the technologies used for automated decision making systems and the areas in which automated decisions systems works more efficiently and accurately.

KEY WORD: automated decision making, decision making technologies.


Research Article  open access
Comparative Study of the Quality of Life, Quality of Work Life and Organisational Climate Instruments
MSc. Rudy de Barros Ahrens || MSc. Renata Klafke || Prof. Dr. Luciana da Silva Lirani || Prof. Dr. Luiz Alberto Pilatti || Prof. Dr. Antonio Carlos de Francisco
Brazil
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

People's lives are increasingly centred on work; they spend at least one-third of their time within the organisations that employ them. Investigating the factors that interfere with employees' well-being and the organisational environment is becoming an increasing concern in organisations. This article identifies the criteria of the quality of life (QoL), quality of working life (QWL) and organisational climate instruments to point out their similarities. For bibliographic construction and data research, articles were sought in national and international journals, books and dissertations/articles in SciELO, Science Direct, Medline and Pub Med databases. The results show direct relationships amongst QoL, QWL and organisational climate instruments. The relationship between QoL and QWL instruments is based on fair compensation, social interaction, organisational communication, working conditions and functional capacity. QWL and organisational climate instruments are related through social interaction and interfaces. QoL and organisational climate instruments are related based on social interaction, organisational communication, and work conditions.

KEY WORD: Employee Involvement; HR Management; Job Satisfaction; Evaluation.


Research Article  open access
Additional Conservation Laws for Two-Velocity Hydrodynamics Equations with the Same Pressure in Components
Nasrutdin Dilmuradov || Abdulkhamid Kholmurodov
Uzbekistan
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

A series of the differential identities connecting velocities, pressure and body force in the twovelocity
hydrodynamics equations with equilibrium of pressure phases in reversible hydrodynamic
approximation is obtaned.

KEY WORD:conservation laws, two-velocity hydrodynamics, mathematical model, multicomponent media,
vector fields.


Research Article  open access
Copper Strip Corrossion Test in Various Aviation Fuels
Dr. A. Rajesh Kanna|| Rauf Rahim|| Sanu Salam|| A Favas|| L M Vishnu
India
Research Inventy: International Journal of Engineering & Science , Volume 7 ~ Issue 1 (Janaury 2017)

Abstract

This research work takes in to account of corrosiveness test on various aviation fuels in the state of Telengana (India). The purpose of this experiment is to determine the corrosiveness test of fuels. This determination will be accomplished by using copper strip corrosion test by using the copper strip experiment we can determine the corrosive property of the fuel and hence the efficiency of fuel. The research covers the importance of knowing the corrosive property of different petroleum fuels including aviation turbine fuel.

KEY WORD: Aviation Turbine Fuel, Superior Kerosene Oil, Petroleum