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    [Volume 07 || Issue 07 || Version-1 || July- 2018]
    Paper Id ::
     ..........
    Paper Title :: Age Group Estimation and Gender Recognition Using Face Features
    Author Name :: Prajakta A. Mélange || Dr. G. S. Sable
    Page Number :: 01-07
    :: 10.9790/1813-0707010107   

    Recognition of the most facial variations, such as identity, age and gender has been extensively studied. This paper concerns with providing a methodology to estimate age group and gender using face features. This process involves four stages: Pre-processing, Face Normalization, Feature Extraction and Classification. The geometric features of facial images like wrinkle geography, face angle, left eye to right eye distance, eye to nose distance, eye to chin distance and eye to lip distance are calculated. Based on the texture and shape information age classification is done. Age ranges are classified dynamically depending on number of groups using SVM classifier algorithm. This paper can be used for predicting future faces, classifying gender, and expression detection from facial images.

    Keywords - Face detection, Feature extraction, Gaussian filter, LBP, Matlab, SVM .

    @article{key:article,
    author = {Prajakta A. Mélange || Dr. G. S. Sable},
    title = {Age Group Estimation and Gender Recognition Using Face Features},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {01-07},
    month = {July}
    }
    Paper Id ::
     ..........
    Paper Title :: Self-Embedding Watermarking Scheme Based On Discrete Wavelet Domain
    Author Name :: Hanen Rhayma || Achraf Makhloufi || Habib Hamam || Ahmed Ben Hamid A
    Page Number :: 08-18
    :: 10.9790/1813-0707010818  

    Image authentication watermarking scheme can substantially solve the security of digital images transmitted through insecure channel. In this paper we propose a semi-fragile watermarking scheme for image authentication, localizing and recovering. The approximation sub-band of the second Discrete Wavelet Transformation (DWT), LL2 is used as recovery watermark while the fifth approximation sub-band LL5 is used as authentication and localizing watermark. The two watermarks are embedded into the first approximation sub-band LL1 using the Quantization Index Modulation (QIM). To reduce the size of the recovery watermark, Data Representation through Combination (DRC) is practically used. The experimental results show that our proposed algorithm can resist JPEG compression and give an acceptable estimation of the watermarked image even after the watermarked image has been tampered.

    Keywords - semi-fragile watermarking, DRC, authentication, localizing, recovering.

    @article{key:article,
    author = {Hanen Rhayma || Achraf Makhloufi || Habib Hamam || Ahmed Ben Hamid A},
    title = {Self-Embedding Watermarking Scheme Based On Discrete Wavelet Domain},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {08-18},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Roadside Environmental Evaluation System for Road Network Planning
    Author Name :: Freddy Jansen
    Page Number :: 19-27
    :: 10.9790/1813-0707011927   

    Air pollution and noise pollution from vehicles is a factor included in the assessment of the environmental impact of road. In order to carry out this assessment it is necessary to have a method to know the environmental condition of the road. In the relation to the roadside environmental problems, the planner should be know the environmental condition of each road section or road side, such as which roadside have bad environmental condition. This is very useful for planning and improving purpose. This paper describes the method of evaluating the environmental condition of road through the comparison of each roadside. To support this evaluating works, the preference analysis method were developed is used to find the designated output. Through this evaluation method, the ranking of roadside in relation to the environmental condition is proposed. The ranking is presented from the roadside with bad environmental condition this micro level presentation is then practicable and enormously useful for further inspire in roadside environmental evaluation.

    Keywords - Roadside, environmental, Air pollution, Preference analysis method, Ranking of roadside.

    @article{key:article,
    author = {Freddy Jansen},
    title = {Roadside Environmental Evaluation System for Road Network Planning},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {19-27},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Modeling of Machine Design with Numerical Control in UG NX 7.5 System
    Author Name :: Vyacheslav Lyashenko || Rami Matarneh || Svitlana Sotnik
    Page Number :: 28-37
    :: 10.9790/1813-0707012837  

    The paper considers the features of metalworking machines. The methodology for kinematic calculation of the main drive machine motion is considered. The modeling of the mounting tool holder detail is carried out. UNIGRAPHICS NX 7.5 creates a sketch and assembly of work piece parts. Modeling a detail in the UNIGRAPHICS NX with the specified properties will allow you to achieve maximum performance at all creating stages the design elements of the machine.

    Keywords - Modeling, Construction, Assembly, Machine, UNIGRAPHICS NX.

    @article{key:article,
    author = {Vyacheslav Lyashenko || Rami Matarneh || Svitlana Sotnik},
    title = {Modeling of Machine Design with Numerical Control in UG NX 7.5 System},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {28-37},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Fire Hazards Of Transportation Of Fuels
    Author Name :: Nikolaos Vagiokas
    Page Number :: 38-48
    :: 10.9790/1813-0707013848  

    Hazardous materials are defined to be the substances that can have harmful effects to human, environment and property. These risks exist due to the nature, the hazardous properties or the state of the above materials. Fuels are categorized to flammable hazardous materials, either in the liquid or gas phase. Industrial needs as well as several human activities depend on the daily transportation of fuels. The consequences of road accidents involving fuel fires cannot be compared to the ones of simple collisions in terms of seriousness. Risks involved in transportation because of freight's hazardous properties (flammability, explosivity etc) are probable to give an extended radius to the affected area during a fire accident. A methodology for conducting a fire safety study during transportation of fuels and the basic elements for emergency and security planning are given with some indicative examples for implementation.............

    Keywords - Transportation of fuels; fire risk assessment; hazardous material routing.

    @article{key:article,
    author = {Nikolaos Vagiokas},
    title = {Fire Hazards Of Transportation Of Fuels},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {38-48},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Perspectives of Bosnian Women in the Field Of IT
    Author Name :: Ph.D.Jasna Hamzabegović || Ph.D.Fatka Kulenović || Ba. Nejra Mesić
    Page Number :: 49-56
    :: 10.9790/1813-0707014956  

    Statistics show that men are mainly employees in the IT sector. Even though many IT companies want to employ more women the fact is that, in technology, there are six times less women than men. This article offers an insight onto the current representation of women in the global IT sector as well as in Bosnia and Herzegovina and its neighbouring countries.

    Keywords - Information technologies, women in IT, woman in IT in BiH.

    @article{key:article,
    author = {Ph.D.Jasna Hamzabegović || Ph.D.Fatka Kulenović || Ba. Nejra Mesić},
    title = {Perspectives of Bosnian Women in the Field Of IT},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {49-56},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Tensile Strength of Oil-Well Cement Pastes Produced with Carbon Nanotubes Directly Synthesized on Clinker
    Author Name :: Paula, J. N || Calixto, J. M || Ladeira, L. O || Ludvig, P || Souza, T. C. C
    Page Number :: 57-62
    :: 10.9790/1813-0707015762  

    This paper analyzes the influence of carbon nanotubes (CNTs) in the tensile strength of cement slurries used in oil wells. CNTs were directly synthesized on cement clinker by chemical vapor deposition process. Cement slurries containing 0.1% and 0.3% of CNTs bwoc were compared with CNT-free slurries. Polynaphtalene sulfonated (0.2% bwoc) was used as dispersant in all cement slurries. Tensile strength was evaluated at the age of 28 days. The results show the presence of CNTs in the cement slurries increases the tensile strength in approximately 65% for 0.1% CNT bwoc at age of 28 days.

    Keywords - Carbon nanotubes, cement paste, tensile strength, oil wells.

    @article{key:article,
    author = {Paula, J. N || Calixto, J. M || Ladeira, L. O || Ludvig, P || Souza, T. C. C},
    title = {Tensile Strength of Oil-Well Cement Pastes Produced with Carbon Nanotubes Directly Synthesized on Clinker},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {57-62},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Analysis of Shielding Welding Gas Composition Effects on the
    Final Microhardness of the Fillet Joints Made With Use Of MAG
    Technology
    Author Name :: Miroslav Greš || Ján Viňáš || Peter Mulidrán || Tomáš Sleziak || Jakub Brezina
    Page Number :: 63-70
    :: 10.9790/1813-0707016370  

    The article aims to analyze the impact of the composition of the shielding welding gas to the quality of welded joints, which were made by technology MAG (Method 135 - STN EN ISO 4063). MAG welding is characterized by the use of technical gases, which are essential to the proper functioning of the process, ensure reliability, productivity and influence the final properties of the weld. For the experimental part, three types of shielding gases were used, namely gases: Ferroline C18, Ferroline C6X1 and Ferroline He20C8. Mentioned are shielding gases from company Messer Tatragas s.r.o. The S235 J2G3, 10 mm thick material (according to EN 10025-94) was used as the welded material for the welded samples.............

    Keywords - welding, MAG, shielding gas, microhardness.

    @article{key:article,
    author = {Miroslav Greš || Ján Viňáš || Peter Mulidrán || Tomáš Sleziak || Jakub Brezina},
    title = {Analysis of Shielding Welding Gas Composition Effects on the Final Microhardness of the Fillet Joints Made With Use Of MAG Technology},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {63-70},
    month = {July}
    }
    Paper Id ::
     ..........
    Paper Title :: Study Of Mechanical Properties And Microstructure Of Fe3Al / Bni-2 / Steel Brazed Joints
    Author Name :: M. M. Abdalla || Eltohamy.R. Elsharkawy || A. Kandil
    Page Number :: 71-78
    :: 10.9790/1813-0707017178  

    Iron aluminides (Fe3Al) intermetallic and steel were joined successfully by vacuum brazing using of BNi-2 braze alloy. Brazing experiments were carried-out at bonding temperature 1040 oC and at different bonding time 2- 20 minutes. Fe3Al/BNi-2/steel joints were thus formed. The microstructure features in the Fe3Al/BNi-2/steel joints were analyzed by a variety of characterization techniques such as optical microscope and scanning electron microscope (SEM) with energy- dispersive spectroscopy (EDS), electronic probe microanalysis (EPMA) and an X-ray diffractometer. The micro-hardness from Fe3Al to steel through BNi-2 braze alloy were measured with a Vickers microhardness. The shear strength of the Fe3Al/BNi-2/steel joints were evaluated with a shear test machine and the maximum shear strength of Fe3Al/BNi-2/steel joints was 496 MPa for joints bonded at bonding temperature of 1040 oC and bonding time of 5 minutes.........

    Keywords - .............

    @article{key:article,
    author = {M. M. Abdalla || Eltohamy.R. Elsharkawy || A. Kandil},
    title = {Study Of Mechanical Properties And Microstructure Of Fe3Al / Bni-2 / Steel Brazed Joints},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {71-78},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Electrical Resistivity Technique for Delineating the Aquifer in Parts of Rufus Giwa Polytechnic, Owo, Ondo State, Nigeria
    Author Name :: Olanegan Paul Oluwasegun
    Page Number :: 79-87
    :: 10.9790/1813-0707017987  

    An electrical resistivity survey was carried out at Rufus Giwa Polytechnic, Owo, Southwestern Nigeria to study the groundwater potential using parameters such as depth, thickness, and resistivity of subsurface materials which are indicative of sustainable groundwater development. Eight (8) geo-electrical soundings were employed using Schlumberger configuration with two of them located astride already existing hand-dug wells in order to validate the field resistivity measurements by correlating them with observe well information. The field data were processed using the IP12win inversion program which automatically generates model curves using initial layers parameters in calculating the true layer parameters of the geo-electric sections..........

    Keywords - Aquifer, Delineating, Electrical, Owo, Resistivity.

    @article{key:article,
    author = {Olanegan Paul Oluwasegun},
    title = {Electrical Resistivity Technique for Delineating the Aquifer in Parts of Rufus Giwa Polytechnic, Owo, Ondo State, Nigeria},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {79-87},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Effect Of MFD Viscosity On Bénard-Marangoni Ferroconvection In A Rotating Ferrofluid Layer
    Author Name :: R. Arunkumar || C. E. Nanjundappa
    Page Number :: 88-106
    :: 10.9790/1813-07070188106  

    The combined effect of Coriolis force due to rotation and magnetic field dependent (MFD) viscosity on the onset of Bénard-Marangoni convection in a horizontal layer of ferrofluid is investigated theoretically. The lower boundary is taken to be rigid with fixed temperature, while the upper free boundary at which temperaturedependent surface tension effect is considered is non-deformable and subject to a general thermal condition. The Rayleigh-Ritz's method is employed to extract the critical stability parameters numerically with thermal Rayleigh number t R or Marangoni number Ma as the eigenvalue. The results reveal that, the Taylor number...........

    Keywords - Ferrofluid, Bénard-Marangoni convection, MFD viscosity, Coriolis force, Rayleigh-Ritz technique.

    @article{key:article,
    author = {R. Arunkumar || C. E. Nanjundappa},
    title = {Effect Of MFD Viscosity On Bénard-Marangoni Ferroconvection In A Rotating Ferrofluid Layer},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {88-106},
    month = {July}
    }
    [Volume 07 || Issue 07 || Version-2 || July- 2018]
    Paper Id ::
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    Paper Title :: Effect of Admixtures on Strength and Permeability of Concrete
    Author Name :: Ichebadu G. Amadi || Kemejika I. Amadi-Oparaeli
    Page Number :: 01-07
    :: 10.9790/1813-0707020107  

    This study investigates the effect of admixtures on the compressive strength and permeability of concrete. Five mixes comprising of a control mix and four modified mixes using the following admixtures: accelerator, water proofer, two superplasticizers namely- Sulphonated Naphthalene Formaldehyde condensates (SNF) and a Poly carboxylate Ether (PCE). The control mix was designed for a grade 30 concrete with a water cement ratio (w/c) of 0.55. To maintain constant slump, the w/c ratio was reduced on application of the admixtures. Compressive strength test was carried out at 3, 7 and 28 days; while Initial Surface Absorption Test ISAT and High Pressure Permeability Tests HPPT were both carried out after 28days. Results indicate that SNF and PCE superplasticizer can be used to enhance exceedingly the performance and durability of concrete.

    Keywords - Compressive Strength, Durability, water cement ratio, admixtures.

    @article{key:article,
    author = {Ichebadu G. Amadi || Kemejika I. Amadi-Oparaeli},
    title = {Effect of Admixtures on Strength and Permeability of Concrete},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {01-07},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Implementation On Face Recognition Techniques
    Author Name :: Ali Mohammed Dige || M. Abdulkadir
    Page Number :: 08-16
    :: 10.9790/1813-0707020816   

    The term biometrics comes from the combination of the Greek words 'bios', which Means life, and 'metric', which in its turn means measuring. Biometric technologies aim primarily at identifying a person's unique features, be those physiological or behavioural. Failure rate is a critical consideration in the configuration and day to day running of a biometric system. Two types of failure rate must be considered; false acceptance rates and false rejection rates. PCA (principal component analysis) model system was used for the face recognition. The system was successfully designed using MATLAB. The face recognition was implemented and the system performance was tested using ORL database (face sets) validation, generalization and rejection testing methods. The system performance was good and the efficiency of the system was proven by plotting a graph. The system was design and was successfully tested and it has proven to be efficiently, although under bad condition the system does its best to provide the right top five ranking image.

    Keywords - face recognition techniques and big data.

    @article{key:article,
    author = {Ali Mohammed Dige || M. Abdulkadir},
    title = {Implementation On Face Recognition Techniques},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {08-16},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Effects Of A Target-Task Problem-Solving Model On Senior Secondary School Students' Performance In Physics
    Author Name :: Oluwatade || Ojo Oluwadare || Dr. (Mrs) Celina S. Gana || Dr. A.A Hassan
    Page Number :: 17-24
    :: 10.9790/1813-0707021724  

    This study investigate the Effects of a Target-Task Problem-Solving Model on Senior Secondary School Students' Performance in Physics In this study, quasi-experimental design was used. The target population for the study comprises 8 Government Senior Secondary School two (SSII) Physics Students in Gwagwalada Area Council, FCT Abuja The sample of the study comprised of 166 student, 87 males and 79 females. Physics Achievement Test on Motion and Force (PAMF) of 24 items was used for trial testing, data collected was analyzed using Cronbach Alpha to obtain 0.97reliability coefficient after validation. The experimental group was exposed to the Target-Task Problem-Solving Model while lecture method was used for the control group. The experimental and control groups were pre-tested in the first week...........

    Keywords - Problem Solving, Observational Skills, Target-Task.

    @article{key:article,
    author = {Oluwatade || Ojo Oluwadare || Dr. (Mrs) Celina S. Gana || Dr. A.A Hassan},
    title = {Effects Of A Target-Task Problem-Solving Model On Senior Secondary School Students' Performance In Physics},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {17-24},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Pinch Analysis of a Commercial-Scale Sugarcane Wax Accelerated-Solvent Extraction and Purification Process
    Author Name :: Wanwisa Skolpap || Nuttawee Owat
    Page Number :: 25-34
    :: 10.9790/1813-0707022534  

    The purpose of this research was to develop sugarcane wax extraction from pressmud of clarification process in sugar manufacturing plant using accelerated solvent extractions (ASE) and to optimize its heat recovery using pinch analysis. The sugarcane wax yield of 14.1% achieved from a developed commercial–scale ASE and purification process was comparable to the previously reported yield. At the minimum temperature difference of 12°C, selection of the most economical heat recovery of the heat exchanger network (HEN) alternative among eight alternatives designed by Aspen Energy Analyzer™ was based on an incremental net present value (NPV). The most cost-effective HEN alternative could lower the total annual cost by 4% comparing to the current HEN.

    Keywords - Accelerated solvent extraction, Heat exchanger network, Pinch analysis, Process simulation, Sugarcane wax extraction.

    @article{key:article,
    author = {Wanwisa Skolpap || Nuttawee Owat},
    title = {Pinch Analysis of a Commercial-Scale Sugarcane Wax Accelerated-Solvent Extraction and Purification Process},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {25-34},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Micro-Grid Current Imbalance Rate Investigate by Decentralized Generators of Renewable Energy
    Author Name :: Yen-Ming Tseng || Chih-Pin Freg || Hsi-Shan Huang
    Page Number :: 35-42
    :: 10.9790/1813-0707023542  

    In existing micro-grid system, it add the renewable energy power generation by parallel connective such as solar power, wind power and the other equipment to form a new configuration of micro-grid system. Renewable energy power generation is generally divided into single-phase and three-phase connection based on the capacities which feed into the micro-grid of State Grid Corporation of China (SGCC) will form a micro-grid three-phase current balance problem to be concern by both of power supply side and demand side. In this article, set up for 27 decentralized generators (DG) by renewable energy which produce the currents to inject into the micro-grid of to supply share with the currents of loadings...........

    Keywords - Imbalance Rate, Decentralized Generator, Renewable Energy, Standalone Connection, Parallel connection.

    @article{key:article,
    author = {Yen-Ming Tseng || Chih-Pin Freg || Hsi-Shan Huang},
    title = {Micro-Grid Current Imbalance Rate Investigate by Decentralized Generators of Renewable Energy},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {35-42},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Different Nonlinear Control Strategies for a Rigid-Flexible Manipulator Robot
    Author Name :: Hamdi Salim || Boucetta Rahma || Bel Hadj Ali Naoui Saloua
    Page Number :: 43-55
    :: 10.9790/1813-0707024355  

    In this paper, are studied, the development of the dynamic model, the stability analysis and the implementation of the control laws of a planar rigid-flexible robot manipulator. The model is generated using the Euler- Lagrange equations associated to the Hamilton's principle. Then a comparative study between performances of PD, fuzzy logic and gain scheduling PD fuzzy controllers applied to the rigid-flexible manipulator to ensure vibration suppression and robustness against disturbances, is presented. To improve the performance level, the stability study is accomplished using the candidate function of Lyapunov. Finally, a set of simulation results is given to compare the three strategies of control in terms of rapidity, stability and desired performances of the rigid-flexible manipulator system.

    Keywords - Rigid-flexible Manipulator, Dynamic Model, PD Control, Fuzzy Logic Control, Gain Scheduling Control.

    @article{key:article,
    author = {Hamdi Salim || Boucetta Rahma || Bel Hadj Ali Naoui Saloua},
    title = {Different Nonlinear Control Strategies for a Rigid-Flexible Manipulator Robot},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {43-55},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Handwritten Dynamic Signature Biometric Verification Using Plainarised Region of Interest [Proi] Method
    Author Name :: Benson-Emenike || Mercy E. || Igwe || Agu Felix
    Page Number :: 56-66
    :: 10.9790/1813-0707025666  

    The technological advancement, experienced in our society today, necessitates a dependable and unswerving authorization and verification of persons; and this has become an indispensible application s in fostering authenticity and reliability in medical, travel and immigration, access control, financial and business transactions etc. biometric authentication has drastically eradicated risk of fraud, theft of personal data and theft of identity which were paramount in the traditional individual identification and verification. Dynamic or online signature verification involves capturing a person's signature as he writes it using special devices such as tablet and digitizer pen or stylus.Plainarised Region Of Interest [PROI] is a special pre-processing method used in this work. It involves processes involving Signature Size Normalization, Thinning, Denoising and Filtering, Binarization, and Width Normalisation; and gives high rate and accurate verification.

    Keywords - Digital, Signature, Biometrics, Verification, PROI.

    @article{key:article,
    author = {Benson-Emenike || Mercy E. || Igwe || Agu Felix},
    title = {Handwritten Dynamic Signature Biometric Verification Using Plainarised Region of Interest [Proi] Method},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {56-66},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Experiment and Evaluation the Properties of Dragon Fruit Drying With Thickness of 30mm
    Author Name :: Cu Thi Thanh Huyen || Bui Bao Hung || Le Thi Thuy Hang
    Page Number :: 67-71
    :: 10.9790/1813-0707026771  

    Drying the dragon fruit by the oven-dryer was investigated at thickness level of 30mm during to determine the water content, the drying rate and the shrinkage of dragon fruit during microwave. The mass of the sample during drying was measured to calculate the water content, the drying rate and the shrinkage of the dragon fruit. This is an experimental result for the dragon fruit, which our team has experimented, to understand the properties of this fruit for the purpose of industrial drying. To support the diversification of dragon fruits products, supply to the market.

    Keywords - Fruit drying, dragon fruit drying, drying rate, water content, shrinkage.

    @article{key:article,
    author = {Cu Thi Thanh Huyen || Bui Bao Hung || Le Thi Thuy Hang},
    title = {Experiment and Evaluation the Properties of Dragon Fruit Drying With Thickness of 30mm},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {67-71},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Influence of Leadership and Communication on Employees Performance through Motivation in PT. Trimitra
    Author Name :: Arief Hidayat || Suryanto || Cicih Ratnasih
    Page Number :: 72-79
    :: 10.9790/1813-0707027279  

    This study aimed to determine the effect of leadership and communication to the employee performance through motivation simultaneously and partially. The study was conducted on the employees of PT. Trimitra. The sampling technique using saturated samples involving 70 people. Analysis of data using path analysis. Based on the results showed that leadership and communication affect the employee's performance simultaneously and partially. The indirect effect of leadership and communication to the employee performance through motivation smaller than the direct effect so that it can be said that the motivation variable not as an intervening variable.

    Keywords - Leadership, Communication, Motivation and Employee Performance.

    @article{key:article,
    author = {Arief Hidayat || Suryanto || Cicih Ratnasih},
    title = {Influence of Leadership and Communication on Employees Performance through Motivation in PT. Trimitra},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {72-79},
    month = {July}
    }
    Paper Id ::
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    Paper Title :: Effect Of Work Discipline And Leadership Style On The Performance Of Employees Motivation As Variable Mediation In Office Ministry Of Justice And Human Rights Bangka Belitung Indonesia
    Author Name :: Lutfi || Abdul Rivai || Djoko Setyo Widodo
    Page Number :: 80-91
    :: 10.9790/1813-0707028091  

    This study aims to determine the effect of work discipline and leadership style on performance through motivation simultaneously and partially. The research was conducted on the employees of the Ministry of Justice and Human Rights of Bangka Belitung. The sampling technique used sampling method saturated with 32 people. Data analysis using path analysis.Based on the result of research indicate that work discipline and leadership style influence to performance through motivation simultaneously and partially. The influence of work discipline and leadership style on performance through motivation is smaller than direct influence so it can be said that motivation variable not as intervening variable.

    Keywords - Discipline, Leadership Style, Motivation, Employee Performance.

    @article{key:article,
    author = {Lutfi || Abdul Rivai || Djoko Setyo Widodo},
    title = {Effect Of Work Discipline And Leadership Style On The Performance Of Employees Motivation As Variable Mediation In Office Ministry Of Justice And Human Rights Bangka Belitung Indonesia},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {80-91},
    month = {July}
    }
    Paper Id ::
     ..........
    Paper Title :: Environmental/Economic Power Dispatch of Thermal Units Using Bat Algorithm
    Author Name :: Ade Elbani || Hardiansyah
    Page Number :: 92-97
    :: 10.9790/1813-0707029297  

    This paper proposes a new meta-heuristic search algorithm, called Bat Algorithm (BA). Bat algorithm is an optimization technique motivated by the echolocation behavior of natural bats in finding their foods. The new algorithm is implemented to solve Environmental/Economic power Dispatch (EED) problem in power systems considering the power limits, valve-point effects and transmission loss. The EED problem can be solved by summing up the minimization of generation cost and emission by considering weighting factor. The effectiveness of the proposed algorithm has been tested on 10-generator system and the results were compared with other methods reported in recent literature.

    Keywords - Economic dispatch, emission dispatch, environmental economic dispatch, bat algorithm, valvepoint effects.

    @article{key:article,
    author = {Ade Elbani || Hardiansyah},
    title = {Environmental/Economic Power Dispatch of Thermal Units Using Bat Algorithm},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {92-97},
    month = {July}
    }
    Paper Id ::
     ..........
    Paper Title :: Effect of Raw Milk Obtained From Holstein Cows on Full Fat Yoghurt Production
    Author Name :: Alirıza Şahin || Yeliz Yılmaz || Duygu Ulaş
    Page Number :: 98-99
    :: 10.9790/1813-0707029899  

    In the research, 10 Red Holstein and 10 Black Holstein cow milk samples were used. The observed levels of milk components were compared with the reference values (min. fat 3.25%, min. non-fat solid 8.25%) in quality raw milk used for full fat yoghurt production using one-sample t test. The results desired significant differences between values of the milk samples in Black and Red Holstein cows and the acceptable reference values for fat and non-fat solid of quality raw milk. Our results show that dairy cows have a better genotype for the full fat yoghurt production because of high parameter levels in their milk. Maximum levels of milk fat and non-fat solid are essential for obtaining the desired dairy production. Further researches are needed to improve the interpretations about milk parameters associated with full fat yoghurt production in dairy cow breeds using statistical control methods such as one sample t test between reference and observed milk parameters

    Keywords - Holstein, cow, milk, yoghurt.

    @article{key:article,
    author = {Alirıza Şahin || Yeliz Yılmaz || Duygu Ulaş},
    title = {Effect of Raw Milk Obtained From Holstein Cows on Full Fat Yoghurt Production},
    journal = {The International Journal of Engineering and Science},
    year = {2018},
    volume = {07},
    number = {07},
    pages = {98-99},
    month = {July}
    }