bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and Modeling Pile Breakwater for LNG Jetty at Senoro Field, Central Sulawesi
Authors: Sambodho Kriyo , Zikra Muhammad , Aldhiansyah M.R.F , Mulyadi Yeyes
Published: June 2016

Senoro Gas Development Project is one part of a joint project between Pertamina and Medco E&P in the field of oil and gas exploration, located in Central Sulawesi, Indonesia. Senoro gas field built a jetty as berthing facility with length around 500 m from the shore. Based on the survey results showed that significant wave height is 2.7 m height at jetty area, while the requirement for vessel berthing larger than 50.000DWT is 0.7 to 1.5 m. Therefore, pile breakwater was planning to build in Senoro jetty area to protect and to reduce the wave height. From bathymetry data shows that the water depth in front of the jetty is between 20-30m. In this case, breakwater conventional or rubble mound type will not be effective for this depth. Thus, pile breakwater is one of the solutions as protection structures for protecting the jetty area from wave attack. The objective of this study is to modeling the performance of pile breakwater to reduce wave height with numerical model. For this study, analysis of the performance of the breakwater is done with numerical model of computational fluid dynamic analysis. The results indicated that pile breakwater was able to reduce the wave height for safety berthing requirement.
Investigation of Risk Based Decision Making for Mobile Mooring System
Authors: Silvianita  , Khamidi Mohd. Faris , Sambodho Kriyo , Syahroni Nur , Mulyadi Yeyes , Zikra Muhammad
Published: June 2016

This paper briefly presents the investigation of risk based decision making for mobile mooring system. This paper used bow tie analysis to analyze the risk of mobile mooring failure. Bow tie analysis consists of FTA (Fault Tree Analysis) on left part and ETA (Event Tree Analysis) on the right part. FTA is useful to determine the potential causes from critical top event until the undesired events are obtained. ETA (Event Tree Analysis) is helpful to define the possible consequence by relating an initiating event to various consequence models. The investigation consists of determining the critical hazards of mooring system failure through investigating the root causes, the consequences, and the frequency index.
Model of Ground Water Elevation around Mud Reservoir in Coastal Area of Porong Sidoarjo
Authors: Mustain Mahmud
Published: June 2016

The previous research got several difference curves of the water level in the large scale from the coastal line perpendicular around 20 km to the land direction over the reservoir area . These curves were caused by both variation of precipitation and sea water level fluctuation of tide. The purpose of this research is to estimate the physical characteristics of water level of ground water around the mud reservoir. The numerical modeling of D-F theory is has be implemented. The idea is to take the solution of discharge equation for well from the ground water level. The model includes the shape of the infiltration mud-volcano from the reservoir to the natural water level of ground water. The field records will be used to make confirmation and validation. The result of this research is to support the result of the previous research, the level of water table around mud reservoir about 2 km perpendicular to the coastline direction (East direction) is full-filled by mud-volcano. On the other hand, for the opposite direction i.e.West direction from mud reservoir about 1.5 km is also full-filled by mud-volcano. The error between numerical model and field records is around 1%.
Anchor Strength Analysis for Mooring of a Floating Breakwater in Senoro Field, Central Sulawesi
Authors: Mulyadi Yeyes , Sambodho Kriyo , Arif Wicaksono M. , Zikra Muhammad
Published: June 2016

This paper will describe complete investigations of the analysis anchor strength for mooring of a floating breakwater in Senoro Field. The terminal has berthing facilities located in a water depth about 30 meters, with the wave height of 2.7 meters that made difficult for tanker to berth properly. The requirement for berthing ships must have minimum wave heights of 0.7 meters to 1.5 meters as a requirement [1]. Considering the previously mentioned, a floating breakwater has suggested for reducing wave height. The purpose of this final project is to determine the tension mooring line and anchor pile strength to withstand all possible working loads. Response amplitude operator (RAO) of floating breakwater is used to find the structure characteristic as a response due to wave action. Based on the study, wire rope mooring was chosen due to its safety factor passed API RP 2SK standard, such as the biggest tension is 1389,68 kN on line 1 and the smallest is 1157,72 kN on line 8. Calculate anchor pile strength with three types: spun piles, spun square piles, and triangular piles. Anchor pile could be installed depending on three main factors, uplift capacity, bearing capacity and pile in compression. Based on the analysis, uplift capacity result for pile F is 1960.1 kN, while uplift load result is 1958.47 kN, and pile in compression result is 4155 kN while allowable compression result is 5532 kN. For pile G, uplift capacity result is 1960.7 kN, while uplift load result is 1958.47 kN, and pile in compression result is 4599 kN, while allowable compression result is 7189 kN.
Flame Stability Measurement on Rectangular Slot Meso-Scale Combustor
Authors: Adiwidodo Satworo , Wardana I.N.G. , Yuliati Lilis , Sasongko Mega Nur
Published: June 2016

The biggest problem of combustion in the micro-scale or meso-scale combustor is heat loss. Heat loss led to a difficult of stable flame. This research aims to elucidate the flame stabilization and flammability limit of LPG-oxygen premixed flame, temperature distribution and flame visualization. Flame stabilization and flammability limit map are shows in φ - U plane. The result shows that there are six regions in the map that is stable without noise, stable with noise, transition zone, dead zone, pseudo stable, and blow off. Measurement parameters are LPG-oxygen flow velocity at various equivalent ratio and temperature. The flame stabilization and flammability limit map within measurement parameters are discussed.
Experimental Study and Analysis of the Generated Electric Power of Salter Duck-Ocean Wave Energy Harvester (OWEH) due to Additional Weight Change and Wave Amplitude
Authors: Hendrowati Wiwiek , Guntur Harus Laksana
Published: June 2016

Among ocean energy, wave energy is one of the energy which has not been utilized optimally. As Indonesia has the longest coastline in the world, the development of OWEH is very important. In this paper, an experimental study and analysis of the generated electric power of Salter Duck type OWEH due to additional weight change and wave amplitude was carried out. Salter Duck is geometrically similar to the duck beak invented by Stephen Salter. The incoming wave toward the nodding duck area will move the beak up and down. This up-down motion is used to rotate the gear transmission system and electric generator. In this research, various additional weight was mounted on the Salter Duck beak and its influence to the generated power was studied at various wave amplitude.The experimental results show that additional weight of 300gr and wave amplitude of 0.028m to the model of OWEH can produce maximum electric power of 19.01mWatt with maximum angular acceleration of 0.0427rad/s2. Efficiency of the Salter Duck prototype is 56%.
Simplicity Design of Hybrid Energy of Marine Current and Offshore Wind Energy Plant in Indonesia
Authors: Mustain Mahmud , Suroso A.
Published: June 2016

Indonesia as a maritime country, its territory consists of 2/3 part of ocean waters and over than 17.000 islands spreading all the country. The waters consist of huge ocean energy which can be converted into others useful energy. The government had developed of a policy of energy diversification for increasing of the use of energy alternative. The policy is to anticipate the depletion of fuel energy where the oil resources estimated will be depleted around next 20 years. The authors selected marine current and offshore wind as the alternatives energy from the ocean.The paper begins to introduce the potential site of the marine current throughout the Indonesia sea waters. Then the paper reviews of the development of marine energy conversion system. Selecting the type of offshore platform and the marine turbine is given to choose the type which is applicable in the potential site. Having the selected type, the paper is trying to discus for combining of two types of energies (marine current and offshore wind) on one unit of platform. The design of the platform supporting of two energies is presented to the end of the paper. The paper was entirely constructed based on literature study.
Performance of Distilled Water Electrolysis with Adding of Sodium Bicarbonate as Catalytic
Authors: Widhiyanuriyawan Denny
Published: June 2016

Water is a chemical compound with chemical formula H2O. By the electrolysis proses, water can be split constituent elements, namely hydrogen (H2) and oxygen (O2). In this study, an electrolyze system used six pieces of electrodes which made from 304L SS for electrolysis process for both of distilled water and adding catalyst NaHCO3 (Sodium Bicarbonate) on distilled water. The results indicated that electrolysis process on distilled water consumed power of 353.52 Watts to produce Brown’s gas of 0.00123 l/s. Whenever, NaHCO3 was added into distilled water with the mass fraction of 1.33% consumed power decrease of 27.89 Watts and Browns gas was produced 0.0017 l/s. The efficiency of distilled water had the greatest efficiency only 5.53% by using current of 2 Ampere and power reached 31.043Watts. While the addition of catalysts had the greatest efficiency reached 40.29% in the use of mass fraction of catalyst 1.5%, 6 Ampere currents and power of 19.829 Watts.
A Couple of Savonius Wind Mill and Centrifugal Reaction Pump as a Wind Energy Water Pump System
Authors: Lukiyanto Y.B.
Published: June 2016

Wind energy is one of renewable energy which became the center of attention and grew rapidly. Especially for remote area, wind energy is one of alternative dependable energy sources which can be used for water lifting. Savonius wind mill can be a solution for decentralized power generation, with low cost and reduced environmental impacts. This study observed a couple of Savonius wind mill and a centrifugal reaction pump which used as a wind energy water pump system (WEWPS). The Savonius wind mill has 0.8 m diameter, 1.0 m height, 2 stages, 2 buckets in every stage and 0.1 m width of the buckets spacing. The centrifugal reaction pump with a T-junction has 0.9 m diameter, 18.5 mm (0.5 inch) nominal inner diameter for both vertical and horizontal pipes. Both arms of T-junction have similar dimension and functioned as impeller. The pump, which is suitable for low shaft speed, is modified by replacing the couple of fixed orifices and sliding orifice with double U pipe configuration to restrict the air entering the pipe channel, either while stopped or rotated. The transmission used to connect the shafts of both devices is the couple of belt and pulleys with transmission ratio 7:4. WEWPS started pumping the water at 4.5 m/s wind speed and total head 1.5 m. The wind speed produced low shaft speed 120 rpm, shaft power 13 Watt and through the transmission driving the pump into cut-on mode.
Evaluation of Delay Factors in Jacket Structure Project
Authors: Silvianita  , Putra Andika Trisna , Rosyid Daniel M. , Chamelia Dirta Marina , Rochani Imam
Published: June 2016

Offshore platforms are used worldwide for drrilling, proceesing and even storage purposes. The offshore platforms can be fixed to the seabed, or can be float. The fixed platform namely jacket structure is a complex construction and design. Construction process of the jacket structure sometimes is not in accordance with the time schedule. There are many factors affect them, limited time, equipment, materials required, and cost of human resources. In order to analyze the delay factors of a jacket project requires a systematic approach. This paper will discusses the delay factors of the construction of Jacket Structure using FTA (Fault Tree Analysis). Data is obtained from one fabrication company which involve their experts to identify the contribution of delay project. There are three main factors causing the Jacket project delay namely Long Process of Procurement, Late Schecule of Assembly Structure, and Bad Management.
Dimensionally Homogeneous Jacobian and Condition Number
Authors: Nurahmi Latifah , Caro Stéphane
Published: June 2016

This paper deals with the formulation of the dimensionally homogeneous extended Jacobian matrix, which is an important issue for the performance analysis of f degrees-of-freedom (f ≤6) parallel manipulators having coupled rotational and translational motions. By using the f independent coordinates to define the permitted motions and (6-f) independent coordinates to define the restricted motions of the moving platform, the 6×6 dimensionally homogeneous extended Jacobian matrix is derived for non-redundant parallel manipulators. The conditioning number of the parallel manipulators is computed to evaluate the homogeneous extended Jacobian matrix, the homogeneous actuation wrench matrix, and the homogeneous constraint wrench matrix to evaluate the performance of the parallel manipulators. By using these indices, the closeness of a pose to different singularities can be detected. An illustrative example with the 3-RPS parallel manipulator is provided to highlight the effectiveness of the approach and the proposed indices.
Type Synthesis of Two DOF Hybrid Translational Parallel Manipulators
Authors: Nurahmi Latifah , Caro Stéphane
Published: June 2016

This paper introduces a methodology for the type synthesis of two degree-of-freedom hybrid translational manipulators with identical legs. The type synthesis method is based upon the screw theory. Three types of two degree-of-freedom hybrid translational manipulators with identical legs are identified based upon their wrench decomposition. Each leg of the manipulators is composed of a proximal module and a distal module mounted in series. The assembly conditions and the validity of the actuation scheme are also defined. Eventually, some novel two degree-of-freedom hybrid translational manipulators are synthesized with the proposed procedure.
Base Aspect Ratio Effects on Resonant Fluid Sloshing in a Rectangular Tank
Authors: Vaziri Nima , Chern Ming Jyh
Published: June 2016

A PSME model is used to study the base aspect ratio effect on resonant fluid sloshing in a 3D tank. Three different depth classes (shallow water, intermediate depth and finite depth) and three base aspect ratios (very long base, half width base and square base) are considered. Longitudinal and diagonal excitations are applied to all cases. Results show that sloshing in lower depth tank strongly depends on the base aspect ratio.
Keywords: PSME method; Nonlinear sloshing waves; Base aspect ratio effect.
Numerical Study of Mixed Convection around a Heated Circular Cylinder
Authors: Djanali Vivien S. , Syah Ahmad Nurdian , Rizal Syaiful
Published: June 2016

Wake and heat transfer characteristics around a heated circular cylinder were studied numerically in this paper. Heat transfer from a heated cylinder to the freestream flow was in mixed convection regime, with the free convection-bouyancy driven flow in opposite direction to the forced convection-main flow. Numerical simulations were performed for three Reynolds numbers of 100, 135 and 200, with the Richardson (Ri = Gr/Re2) numbers varied from 0 to 1. Results showed that buoyancy force significantly altered wake formation behind the heated cylinder, further resulted in increasing drag and decreasing Nusselt number.
Experimental Study on the Dynamic Characteristics of Hydro-Magneto-Electric-Regenerative Shock Absorber
Authors: Guntur Harus Laksana , Hendrowati Wiwiek
Published: June 2016

Regenerative shock absorber is designed to convert the vibration energy losses from the vehicle suspension into electricity. This paper presents an experimental study on the dynamic characteristics of hydro-magneto-electric-regenerative shock absorber (HMERSA). Study was carried out by developing a prototype of HMERSA and testing its dynamic characteristics. The results were analyzed and discussed. Prototype of the HMERSA consists of hydraulic system and electric generator. The HMERSA was tested using a quarter car suspension test rig with input displacement in various frequency (1.3Hz, 1.5Hz, 1.7Hz) and for HMERSA’s various oil viscousity (ISO VG 10, 32, 46). Sprung mass acceleration and the generated electric power representing the dynamic characteristics of HMERSA were measured. Maximum power 2.5 watt and root mean square acceleration 0.172 m/s2 gained for HMERSA with oil viscousity ISO VG 10 at all excitation frequency.
Cooling Load Estimation to Determine the Proper Capacity of Air Conditioners in the Engineering Building at Engineering Academy of Soroako
Authors: Hamarung Mukhlis A. , Harman  , Jasman
Published: June 2016

The comfort of a workspace for some people is a thing which is not negotiable. It is believed to raise the motivation of people who work in it. A room which is too hot or too cold may cause people working in it unable to concentrate in a manner that their work performance will not be optimal or will cause some of their work delayed and eventually lead to the depression of the workers themselves. From an economic standpoint, this analysis is important because the greater the capacity of the air conditioning system, the greater the power consumption.
The purpose of this study is to determine the amount of heat, which is caused by external and internal factors, that arise in the Engineering building at Engineering Academy of Soroako, and to determine the proper capacity of air conditioners which should be installed in the building.
To determine the amount of air conditioning capacity needed in the building, an analysis of the cooling load that occurs in the building is necessary. Geographical position, direction of the wall, and building materials are very influential in the absorption of heat from the outside, while the activities of the occupants, lighting loads, and loads of other electrical equipment affects the amount of heat that arise. CLTD / CLF / SCL methods are used in the calculation, and the data required is measured at the peak of the dry season, which occurs in October.
Our analysis and calculations obtained that, according to its function, the number of lamps needed in the building are 26 type PL lamps with a power of 23 watts per lamp. The conduction heat gains and maximum daily infiltration occurred at 2pm with a value of 7.51 kW and 1.98 kW, respectively, while the internal heat gains and maximum daily radiation occurred at 3pm with a value of 1.94 kW and 15.41 kW, respectively.
It is concluded that the total maximum daily heat gains that arises is 26.50 kW so the capacity of the air conditioner needed is 6.61 kW or rounded to 8.9 PK.
The Effects of Earthquake on the Cylindrical Tanks
Authors: Jendzelovsky Norbert , Baláž Lubomír
Published: June 2016

This paper deals with a problem of earthquake of the cylindrical tank. During the seismic event, the load acts in one direction only, i.e. in the direction of earthquake. This load imposes a non-symmetrical loading of a structure. At seismic load of structure of cylindrical tank was used accelerogram. In final part of the paper some crucial results are presented both in a graphical and numerical way.
Microstructure of Unburned Clay and its Shrinkage during Drying
Authors: Otcovská Tereza , Padevět Pavel
Published: June 2016

Unburned clay was used for the traditional engineering works for thousands years. Its qualities have not been too appreciated in the last few decades. Because of that, its material characteristics were never researched very rigorously. In last years, we could see increasing demand for use of this building material in building practice and research. The basic problem that should be mitigated by civil engineers handling unburned clay is its considerable shrinkage during drying. The degree of shrinkage depends on the amount of mixture water and on the amount and type of clay minerals. In the unburned clay, like in the cement, clay minerals play role of the binder. The problem is that clay minerals are causing volume changes. This paper is focused on the degree of shrinkage and its dependence on the species and quantity of clay mineral.
Viscoelastic Effects in Solid Phase Continuous Media - Stress-Strain Relations
Authors: Veghova Ivana , Sumec Jozef
Published: June 2016

Mathematical modeling of boundary value problems in linear theory of viscoelasticity. Definitions and basic principles in the mathematical modeling theory. Constitutive functional and its transformation into a form of Stieltjes integral. Application of theory of algebraic sets and corresponding subsets. Riesz theory of representation and its application for derivation of constitutive equations. Integral and differential operator forms of stress-strain relationships for a solid-phase continuous media.
Penetration Testing of Liquefaction Potential of Ashes due to Seismic Load
Authors: Slavik Ivan
Published: June 2016

Geomaterials with typical low unit weight and high porosity are significantly prone to liquefaction as a result of dynamic – seismic load. Investigation of geomaterials that are prone to liquefaction due to seismic load can use certain SPT and CPT penetration tests. The method of investigating liquefaction caused by seismic activity was developed based on numerous penetration tests of sandy or silty–sandy soils and was elaborated in detail at the Workshop on Evaluation of Liquefaction Resistance of Soil, NCEER, Salk Lake City, USA, 1996. In the present paper, the results of penetration CPT test conducted at the ash impoundment in Zemianske Kostoľany are analyzed using methodology NCEER.
Capability of Two Equation k-ω Turbulence Model to Predict Pressure Values on “Quarter-Circular” Object
Authors: Kralik Juraj , Hubova Olga , Konecna Lenka
Published: June 2016

Turbulence is a flow regime characterized by chaotic property changes. Randomness, fluctuations, vorticity and large Reynolds number (Re) are the basic characteristics of turbulent flows. In this contribution is Computer Fluid Dynamic simulation of air-flow over an obstacle in shape of “quarter-circular” object compared to the data from previous work. This comparison is focused on mean values of pressure in 16 selected points at different elevations. k-ω turbulence model performed well (convergence, time, CPU) and the overall error is 13.61 %.
Nonlinear Probabilistic Analysis of the Failure Pressure of NPP Shielding Plate
Authors: Kralik Juraj , Kralik Jr. Juraj , Klabnik Maros , Grmanova Alzbeta
Published: June 2016

This paper describes the nonlinear probabilistic analysis of the failure pressure of the shielding plate of the reactor box of the nuclear power plant under a high internal overpressure and temperature. The scenario of the hard accident in Nuclear power plant (NPP) and the methodology of the calculation of the fragility curve of the failure overpressure using the probabilistic safety assessment PSA 2 level is presented. The fragility curve of the failure pressure was determined using 45 probabilistic simulations using the response surface method (RSM) with the Central Composite Design (CCD) for 106 Monte Carlo simulations for each model and 5 level of the overpressure.
An Influence of a Shape of a Flaw on a Value of Stress on Beams
Authors: Kovacikova Janka , Ivankova Olga , Drobny Dusan
Published: June 2016

The main topic of this paper is finite element analysis of 4-point loaded glulam beams which contain different types of flaws. There were modeled four types of beams. First type was the beam without a flaw, second was the beam with a central crack in the middle of span located at the bottom edge of the beam, third model of beams contained also the central crack but this crack was located 20 mm above the edge and the last model contained a hole in the middle of the span as simulation of a knot. These models were performed and analyzed in ANSYS. Task was considered as two dimensional. There were compared values of stress in different types of beam's models.
Stable Paths in the Postbuckling of an Imperfect Slender Web Loaded in Compression
Authors: Havran Jozef , Psotný Martin
Published: June 2016

The stability analysis of a slender web loaded in compression is presented. The non-linear FEM equations are derived from the variational principle of minimum of potential energy. The peculiarities of the effects of the initial imperfections are investigated using user program. Special attention is paid to the influence of imperfections on the post-critical buckling mode. Stable load-displacement paths are investigated. The FEM computer program using a 48 DOF element has been used for analysis. FEM model consists of 4x4 finite elements. Full Newton-Raphson procedure has been applied.
Comparison of Cement Pastes Creep with Admixtures of Fly Ash
Authors: Padevět Pavel , Bittnar Petr
Published: June 2016

The article is devoted to compare the size of the creep for a time period of cement pastes with admixture of different amounts of fly ash. Attention is given to the size of the deformations that occur in materials saturated with water and also in the dried matrices. The presented results comparing creep size for cement pastes containing fly ash 30 and 50 %. Influence of the amount of ash and the amount of water to the creep size is evaluated in the conclusion.
Research on Mechanism of Surface Nanocrystalline Layer in 2219 Al Alloy Induced by Supersonic Fine Particles Bombarding
Authors: Zhang Yu Xiang , Yang Jian Hai , Ge Li Ling , Zhang Xin , Chen Jia Zhao
Published: June 2016

A nanostructured surface layer is formed on 2219 Al alloy plate by means of supersonic fine particles bombarding (SFPB). The surface microstructure formation mechanism of morphology change is systematically characterized by using scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The average grain size of 30nanostructured layer is about 30 nm when the surface of sample is induced by severe plastic deformation. Based on the experimental observations, nanoscale dislocation cells exist in strain layer about 200 from the surface, and we put forward a new formation mechanism of Al alloy surface nanocrystalline layer through theoretical analysis. The original grain is segmented fast into nanoscale dislocation cell or lamellar cell. As the Burgers vector of cell walls continue to accumulate, grain orientation difference constantly increases to form the nanoscale subboundary. Eventually, equiaxed nanocrystallites with random crystallographic orientations are formed by grain rotating or grain boundary sliding.
Overview of Image Quality Metrics with Perspective to Satellite Image Compression
Authors: Sanjith S. , Ganesan R.
Published: June 2016

Image Quality appraisal has been an exacting task in the field of image processing without any satisfactory answer so far. Image quality evaluation tries to quantify a visual quality, an amount of distortion in a given picture. These changes are an inescapable component of any digital picture processing. The correct method of valuing the human-perceived visual quality of the images is the assessment by the human beings. Unfortunately, this process is luxurious, time consuming and cannot be applied in real-time applications. Therefore, there is a demand for a computerized technique that would conceive of the human-perceived visual quality as close as possible. This survey presents an overview about different quality metrics used in-order to assess the image degradation. The few metrics studied are MSE, SNR, PSNR, SSIM, AD, MD, MAE, NK, VSNR, RMSE, UIQM, MSSSIM, FSSIM etc. The image quality metrics are verified with perspective to satellite pictures.
A Review of Deep Machine Learning
Authors: Benuwa Ben Bright , Zhan Yong Zhao , Ghansah Benjamin , Wornyo Dickson Keddy , Banaseka Kataka Frank
Published: June 2016

The rapid increase of information and accessibility in recent years has activated a paradigm shift in algorithm design for artificial intelligence. Recently, deep learning (a surrogate of Machine Learning) have won several contests in pattern recognition and machine learning. This review comprehensively summarises relevant studies, much of it from prior state-of-the-art techniques. This paper also discusses the motivations and principles regarding learning algorithms for deep architectures.
FFBAT-Optimized Rule Based Fuzzy Logic Classifier for Diabetes
Authors: Thippa Reddy G. , Khare Neelu
Published: June 2016

In the last two decades, developing countries are facing heavy increase in diabetes among their population that is leading to other severe diseases. Hence, there is a great need to develop some effective prediction methods to prevent diabetes. In this paper an attempt has been made to develop Firefly-BAT (FFBAT) optimized Rule Based Fuzzy Logic (RBFL) prediction algorithm for diabetes. The algorithm has two main steps. First, Locality Preserving Projections (LPP) algorithm is used for feature reduction and then classification of diabetes is done by means of RBFL classifier. LPP algorithm has been used to identify the related attributes and then the fuzzy rules are produced from RBFL. The rules are optimized using FFBAT algorithm. Next, the fuzzy system is designed with the help of optimized fuzzy rules and membership functions that will classify the diabetes data. FFBAT is the optimization algorithm which combines the features of BAT and Firefly (FF) optimization techniques. The experiment analysis shows that the RBFL-FFBAT algorithm outperforms the existing approaches.
Study of Logistics and Manufacturing Industry Integration from the Perspective of Pakistan
Authors: Khan Syed Abdul Rehman , Dong Qian Li , Yu Zhang
Published: June 2016

According to the basic characteristics of high-level logistics and the formation and fusion process of logistics chain and supply chain, this paper puts forward and constructs the basic category of the two-industry-linkage integration field, summarizes the experience of integration field application in logistics research, discusses the formation and fusion development mechanism of the categories of the integration field’s integrator, field-source, base-nuclear, field line and so on in two-industry-linkage and draws inferences about the two-industry-linkage field line.
Optimization in Hot Turning of Nickel Based Alloy Using Desirability Function Analysis
Authors: Parida A.K. , Maity K.P.
Published: June 2016

This paper presents a desirability function approach in order to find out an optimal combination of Machining parameters for multi-response parameters in hot turning operation of nickel based alloy. Taguchi’s L9 orthogonal array is used for experimental design. The machining parameters such as cutting velocity, feed rate, depth of cut and temperature are optimized by multi-response considerations namely power, flank wear, and MRR. ANOVA test was carried out and it was found that cutting speed is most influence parameter followed by feed rate, depth of cut and workpiece temperature. The optimization of machining parameters was found at 5.8 m/min of cutting speed, 30 °C preheating temperature, 0.2 mm depth of cut and 0.15 mm/rev feed rate
Investigating the Calibration Curves for a Two Component Cutting Tool Lathe Dynamometer Using Finite Element Analysis
Authors: Ibhadode Osezua Obehi , Dagwa Ishaya Musa , Akhaehomen Ibhadode Akii Okonigbon
Published: June 2016

Calibration curves of a multi-component dynamometer is of essence in machining operations in a lathe machine as they serve to provide values of force and stress components for cutting tool development and optimization. In this study, finite element analysis has been used to obtain the deflection and stress response of a two component cutting tool lathe dynamometer, for turning operation, when the cutting tool is subjected to cutting and thrust forces from 98.1N to 686.7N (10 to 70kg-wts), at intervals of 98.1N(10kg-wt). By obtaining the governing equation, modeling the dynamometer assembly, defining boundary conditions, generating the assembly mesh, and simulating in Inventor Professional; horizontal and vertical components of deflection by the dynamometer were read off for three different loading scenarios. For these three loading scenarios, calibration plots by experiment compared with plots obtained from simulation by finite element analysis gave accuracies of 79%, 95%, 84% and 36%, 57%, 63% for vertical and horizontal deflections respectively. Also, plots of horizontal and vertical components of Von Mises stress against applied forces were obtained.
The Influence of Aging on Industrially Cold Drawn Aluminum Alloy (6101) Used in the Electric Transmission Lines
Authors: Zidani Mosbah , Hadid Mohamed Djamel , Djimaoui Toufik , Messaoudi Salim , Bessais Lakhdar , Miroud Djamel , Farh Hichem , Mathon Marie Hélène , Baudin Thierry
Published: June 2016

An investigation has been done to study the effect of heat treatment at low temperature on the development of mechanical and electrical properties of the industrially cold drawn aluminum alloy wires (6101). This aluminum alloy is used by the national company of electric cables of Biskra (ENICAB) for the transmission lines of electrical energy. The mechanical and electrical properties of the Al-Mg-Si alloys can be changed by heat treatment. Different technical procedures have been used In order to understand the complicated effect of aging on 6101 aluminum alloy; we have used the optical microscopy, hardness measurements and the electrical resistivity measurement. It was noted that the cold drawing of this aluminum alloy increase the microhardness which is produced by a high strain hardening of the material accompanied by a development of a fibrous texture. We notice also that the electrical resistivity of the alloy increase with an increase of the deformation level and decrease of this properties with the increasing aging time at 170 ° C.
Comparison of Head Elevation Protocols Following Femoral Artery Sheath Removal After Coronary Angiography
Authors: Olson Nancy C.
Published: June 2016

Objectives

To compare 2 standard protocols for head elevation following removal of a femoral artery sheath after coronary angiography and their effects on bleeding complications and reported levels of back pain. One protocol involved flat supine bed rest; the other allowed progressive head elevation.

Methods

A prospective comparative study of 80 adult patients undergoing coronary angiography via the femoral approach. The Numeric Rating Scale was used as the measure of reported pain.

Results

No bleeding complications occurred in either group. Both groups had very low mean pain scores. Repeated-measures analysis demonstrated that the experience of pain differed significantly over time by location (F5,70 = 3.864, P = .004), with a notable decrease in pain scores more than 1 hour after sheath removal at the location that used the progressive head elevation protocol. Patients’ satisfaction scores after discharge did not differ significantly between the 2 groups. Patients with a history of chronic back pain had consistently higher pain scores, but those pain scores did not differ significantly by location (or protocol).

Conclusions

It appears that using a progressive head-elevation protocol within the first 3 hours after diagnostic angiography is not associated with an increased risk of bleeding complications at the access site and warrants further exploration in the mitigation of back pain associated with prolonged supine bed rest.
Solid-Organ Graft-Versus-Host Disease After Liver Transplant: A Case Report
Authors: Auerbach Jonathan S. , Schott Christopher K.
Published: June 2016

Solid-organ transplant graft-versus-host disease (SOT-GVHD) is a rare complication of organ transplant that is associated with high mortality. The initial signs and symptoms are vague, so this disease is easily confused with other posttransplant complications. A case of SOT-GVHD occurred after orthotopic liver transplant for liver failure due to hepatitis C in a patient in a Veterans Affairs intensive care unit. The patient had dehydration, acute kidney injuries, rashes, diarrhea, and pancytopenia. Results of skin biopsy, bone marrow biopsy, and cytogenetic studies were consistent with SOT-GVHD. Despite supportive care including antibiotics, antiviral and antifungal therapy, high-dose steroids, antithymoglobulin and neupogen, the patient died of overwhelming sepsis. Owing to the rarity of SOT-GVHD, no evidence-based guidelines or recommendations for treatment exist. Treatment includes high-dose corticosteroids and antibiotic, antifungal, and antiviral prophylaxis. Treatment of liver transplant–related GVHD with anti–tumor necrosis factor a agents has been successful.
Promising Efficacy of Benznidazole Nanoparticles in Acute Trypanosoma cruzi Murine Model: In-Vitro and In-Vivo Studies
Authors: Scalise María L. , Arrúa Eva C. , Rial Marcela S. , Esteva Mónica I. , Salomon Claudio J. , Fichera Laura E.
Published: June 2016

The aim of this study was to evaluate the effectiveness of benznidazole nanoparticles (BNZ-nps) on trypomastigote forms and on intracellular infection in mammalian cells and primary cardiac myocyte cells. Its effectiveness was also evaluated on acute Trypanosoma cruzi Nicaragua mice infection. Trypomastigotes from culture were treated with different concentrations of BNZ-nps to determine the drug concentration that lyses 50% of trypomastigotes (LC50). Infected mammalian cells were incubated with different concentrations of BNZ-nps to determine the percentage of amastigote inhibition. C3H/HeN mice with lethal acute infection were treated with 10, 25, and 50 mg/kg/day of BNZ-nps for 30 and 15 days to control the survival rate of animals. BNZ-nps having a mean particle size of 63.3 nm, a size distribution of 3.35, and a zeta potential of −18.30 were successfully prepared using poloxamer 188 as a stabilizer. BNZ-nps 25 and 50 μg/mL showed no significant differences in the percentage of inhibition of infected mammalian cells. Infected mice treated with BNZ-nps (50, 25, and 10 mg/kg/day) for 30 days and with BNZ-nps (50 and 25 mg/kg/day) for 15 days presented a 100% survival, whereas the animals treated with 10 mg/kg/day for 15 days of BNZ-nps showed a 70% survival rate. The results obtained demonstrate, for the first time, that benznidazole nanoparticles are a useful and attractive approach to treat Chagas disease in infected mice.
Hepatitis E Virus Genotype 3 in Sewage and Genotype 1 in Acute Hepatitis Cases, Israel
Authors: Ram Daniela , Manor Yossi , Gozlan Yael , Schwartz Eli , Ben-Ari Ziv , Mendelson Ella , Mor Orna
Published: June 2016

Hepatitis E virus (HEV) is an emerging infectious agent in developed countries. HEV genotypes 1 (G1) and 3 (G3) have been identified in environmental and clinical samples in Europe. In Israel, the overall prevalence of anti-HEV IgG antibodies was found to be 10.6%; however, reports of HEV infection are scarce. In this study, the presence of HEV in Israel was investigated using 169 sewage samples from 32 treatment facilities and 49 samples from acute hepatitis patients, all collected between 2013 and 2015. Fourteen sewage samples, from Haifa (11/18 samples), Tel Aviv (2/29 samples), and Beer Sheva (1/17 samples), regions with good sanitary conditions and middle-high socioeconomic populations, were HEV positive. Among the patient samples, 6.1% (3/49) were HEV positive, all returning travelers from India. Genotype analysis revealed G1 HEV in patients and G3 HEV sequences in sewage. Evidence that HEV could be establishing itself in our region may justify more active surveillance to monitor its spread.
Patient Experiences Using an Inpatient Personal Health Record
Authors: Prey Jennifer , Wilcox Lauren , Sackeim Alexander , Restaino Susan , Raza Syed , Bakken Suzanne , Feiner Steven , Hripcsak George , Vawdrey David , Woollen Janet
Published: June 2016

To investigate patients’ experience using an inpatient personal health record (PHR) on a tablet computer to increase engagement in their hospital care.

We performed observations and conducted semi-structured interviews with 14 post-operative cardiac surgical patients and their family members who received an inpatient PHR. Themes were identified using an inductive coding scheme.

All participants responded favorably to having access to view their clinical information. A majority (85.7%) of participants used the application following an initial training session. Patients reported high satisfaction with being able to view their hospital medications and access educational materials related to their medical conditions. Patients reported a desire to view daily progress reports about their hospital stay and have access to educational information about their postacute recovery. In addition, patients expressed a common desire to view their diagnoses, laboratory test results, radiology reports, and procedure notes in language that is patient-friendly.

Patients have unmet information needs in the hospital setting. Our findings suggest that for some inpatients and their family members, providing personalized health information through a tablet computer may improve satisfaction, decrease anxiety, increase understanding of their health conditions, and improve safety and quality of care.
Significant concentrations of nitryl chloride sustained in the morning: Investigations of the causes and impacts on ozone production in a polluted region of northern China
Authors: Tham Yee Jun , Wang Zhe , Li Qinyi , Yun Hui , Wang Weihao , Wang Xinfeng , Xue Likun , Lu Keding , Ma Nan , Bohn Birger , Li Xin , Kecorius Simonas , Größ Johannes , Shao Min , Wiedensohler Alfred , Zhang Yuanhang , Wang Tao
Published: June 2016

Abstract. Nitryl chloride (ClNO2) is a dominant source of chlorine radical in polluted environment and can significantly affect the atmospheric oxidative chemistry. However, the abundance of ClNO2 and its exact role are not fully understood under different environmental conditions. During the summer of 2014, we deployed a chemical ionization mass spectrometer to measure ClNO2 and dinitrogen pentoxide (N2O5) at a rural site in the polluted North China Plain. Elevated mixing ratios of ClNO2 (> 350 pptv) were observed at most of the nights with low levels of N2O5 (< 200 pptv). The highest ClNO2 mixing ratio of 2070 pptv (1-min average) was observed in a plume from megacity (Tianjin) and was characterized with faster N2O5 heterogeneous loss rate and ClNO2 production rate compared to average condition. The abundant ClNO2 concentration kept increasing even after sunrise and reached a peak 4 hours later. Such highly sustained ClNO2 peaks after sunrise are discrepant from the previously observed typical diurnal pattern. Meteorological and chemical analysis show that the sustained ClNO2 morning peaks are caused by significant ClNO2 production in the residual layer at night followed by downward mixing after break-up of the nocturnal inversion layer in the morning. We estimated that ~ 1.7–4.0 ppbv of ClNO2 would exist in the residual layer in order to maintain the observed morning ClNO2 peaks at the surface site. Observation-based box model analysis show that photolysis of ClNO2 produced chlorine radical with a rate up to 1.12 ppbv h−1, accounting for 10–30 % of primary ROx production in the morning hours. The perturbation in total radical production leads to an increase of integrated daytime net ozone production by 3 % (4.3 ppbv) on average, and with a larger increase of 13 % (11 ppbv) in megacity outflow that was characterized with higher ClNO2 and relatively lower OVOC to NMHC ratio.
Transport of Pollution to a Remote Coastal Site during Gap Flow from California’s Interior: Impacts on Aerosol Composition, Clouds and Radiative Balance
Authors: Martin A. C. , Cornwell G. C. , Atwood S. A. , Moore K. A. , Rothfuss N. , Taylor H. , DeMott P. J. , Kreidenweis S. M. , Petters M. D. , Prather K. A.
Published: June 2016

Abstract. During the CalWater 2015 field campaign, ground-level observations of aerosol size, concentration, chemical composition, and cloud activity were made at Bodega Bay, CA on the remote California coast. A strong anthropogenic influence on air quality, aerosol physicochemical properties, and cloud activity was observed at Bodega Bay during periods with special weather conditions, known as Petaluma Gap flow, in which air from California’s interior is transported to the coast. This study applies a diverse set of chemical, cloud microphysical and meteorological measurements to the Petaluma Gap flow phenomenon for the first time. It is demonstrated that the sudden and often dramatic change in aerosol properties are strongly related to regional meteorology and anthropogenically-influenced chemical processes in California’s Central Valley. In addition, it is demonstrated that the change in airmass properties from those typical of a remote marine environment to properties of a continental regime has the potential to impact atmospheric radiative balance and cloud formation in ways that must be accounted for in regional climate simulations.
In-situ air temperature and humidity measurements over diverse landcovers in Greenbelt, MD Nov. 2013–Nov. 2015
Authors: Carroll Mark L. , Brown Molly E. , Wooten Margaret R. , Donham Joel E. , Hubbard Alfred B. , Ridenhour William B.
Published: June 2016

Abstract. As our climate changes through time there is an ever increasing need to quantify how and where it is changing so that mitigation strategies can be implemented. Urban areas have a disproportionate amount of warming due, in part, to the conductive properties of concrete and asphalt surfaces that make up an urban environment. The NASA Climate Adaptation Science Investigation working group at Goddard Space Flight Center in Greenbelt MD conducted a study to collect temperature and humidity data at 15 minute intervals from 12 sites on center. These sites represented the major surface types on center: asphalt, building roof, grass field, forest, and rain garden. The data show a strong distinction in the thermal properties of these surfaces on the center and the difference between the average value for the center compared to a local meteorological station. The data have been submitted to Oak Ridge National Laboratory Distributed Active Archive Center (ORNL-DAAC) for archival in comma separated value (csv) file format http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1319.