Volume 8, Issue 4 (2015) | American Journal of Engineering and Applied Sciences

A Review of Human Induced Vibrations on Footbridges

C. Maraveas — 2015-10-30

American Journal of Engineering and Applied Sciences, Published online: 30 October 2015; doi:10.3844/ajeassp.2015.422.433

An extensive literature review of human induced vibrations that flexible footbridges experience is addressed in this study. Qualitative information is comprehensively included herein to provide common...

Credibility of 3D Volume Computation Using GIS for Pit Excavation and Roadway Constructions

Ragab Khalil — 2015-09-01

American Journal of Engineering and Applied Sciences, Published online: 1 September 2015; doi:10.3844/ajeassp.2015.434.442

Volume estimation and earthworks calculation of borrow pits and roadway constructions are typical applications in civil Engineering. Although several methods for volume estimation were introduced, the...

Dialectic Form Finding of Structurally Integrated Adaptive Structures

L. Rhode-Barbarigos — 2015-07-06

American Journal of Engineering and Applied Sciences, Published online: 6 July 2015; doi:10.3844/ajeassp.2015.443.454

Structural engineering, prompted by advances in mechanics and computing as well as design principles such as sustainability and resilience, is evolving towards adaptive structures. Adaptive structures...

Optimal Arrangement of Energy-Dissipating Members for Seismic Retrofitting of Truss Structures

Toru Takeuchi — 2015-07-14

American Journal of Engineering and Applied Sciences, Published online: 14 July 2015; doi:10.3844/ajeassp.2015.455.464

Although passive response control design is a popular method, an arrangement methodology for energy-dissipating devices in spatial structures has not been established yet. In this study, optimization ...

Characterization of Solid Residues Obtained from Supercritical Ethanol Liquefaction of Swine Manure

Rui Li — 2015-07-15

American Journal of Engineering and Applied Sciences, Published online: 15 July 2015; doi:10.3844/ajeassp.2015.465.470

Animal wastes are considered as renewable energy resources, which contain a great energy potential. For this study, swine manure was treated with supercritical ethanol within the reaction temperature ...

Cross-Section Optimization of Sandwich-Type Cylindrical Wind Turbine Towers

Stylianos M. Vernardos — 2015-08-07

American Journal of Engineering and Applied Sciences, Published online: 7 August 2015; doi:10.3844/ajeassp.2015.471.480

As wind energy is aggressively expanding within the alternative sources' part of modern world's energy pie, the need of addressing various obstacles that limit further wind utilization becom...

Similitude Distortion Compensation for a Small Scale Model of a Knee Braced Steel Frame

Nouredine Bourahla — 2015-08-07

American Journal of Engineering and Applied Sciences, Published online: 7 August 2015; doi:10.3844/ajeassp.2015.481.488

The purpose of producing scaled physical models is to allow the assessment in the laboratory of the probable response of a structure to a prescribed loading. It is obviously of paramount importance to...

Welded Connections of Wind Turbine Towers under Fatigue Loading: Finite Element Analysis and Comparative Study

Nafsika Stavridou — 2015-08-18

American Journal of Engineering and Applied Sciences, Published online: 18 August 2015; doi:10.3844/ajeassp.2015.489.503

Increased contemporary energy needs have led to multiple investments on wind power plants and structural improvements are considered necessary for the construction of taller, more robust and more econ...

Real-Time Automatic Inspection System for the Classification of PCB Flux Defects

Ang Teoh Ong — 2015-08-25

American Journal of Engineering and Applied Sciences, Published online: 25 August 2015; doi:10.3844/ajeassp.2015.504.518

Automatic inspection based on a real-time machine vision system may serve as substitute for the manual human visual inspection of flux defects in Printed Circuit Boards (PCBs), which often cause damag...

RETRACTED: Durability Properties of High-Performance Concrete Incorporating Nano-TiO₂ and Fly Ash

Ehsan Mohseni — 2015-09-01

American Journal of Engineering and Applied Sciences, Published online: 1 September 2015; doi:10.3844/ajeassp.2015.519.526

The American Journal of Engineering and Applied Sciences has decided to retract the manuscript titled "Durability Properties of High-Performance Concrete Incorporating Nano-TiO2 and Fly Ash" authored ...

Synthesis and Characterization of Ink (Carbon)-Perovskite/Polyaniline Ternary Composite Electrode for Sodium Chloride Separation

Savita Dixit — 2015-09-02

American Journal of Engineering and Applied Sciences, Published online: 2 September 2015; doi:10.3844/ajeassp.2015.527.537

We reported the synthesis of ink-perovskite/Polyaniline composite electrode material for the separation of sodium chloride solution. These electrode materials are prepared by in situ polymerization pr...

Determination of Natural Frequencies through Modal and Harmonic Analysis of Space Frame Race Car Chassis Based on ANSYS

Mohammad Al Bukhari Marzuki — 2015-09-02

American Journal of Engineering and Applied Sciences, Published online: 2 September 2015; doi:10.3844/ajeassp.2015.538.548

Space frame chassis the preferred choice of chassis design due to its low cost, high strength, lightweight and safe qualities, which made it suitable for a single-seat race car application and an impo...

Structural Optimization for Materially Informed Design to Robotic Production Processes

H. Bier — 2015-09-11

American Journal of Engineering and Applied Sciences, Published online: 11 September 2015; doi:10.3844/ajeassp.2015.549.555

Hyperbody’s materially informed Design-to-Robotic-Production (D2RP) processes for additive and subtractive manufacturing aim to achieve performative porosity in architecture at various scales. An ex...

Sedimentology and Depositional Environment of D2 Sand in Part of Greater Ughelli Depobelt, Onshore Niger Delta, Nigeria

Prince Suka Momta — 2015-09-19

American Journal of Engineering and Applied Sciences, Published online: 19 September 2015; doi:10.3844/ajeassp.2015.556.566

The sedimentology and depositional environment of D2 sand in part of the Greater Ughelli depobelt have been studied using well logs and core data. Three wells were correlated to establish the lateral ...

Investigating the Parameters Influencing the Behavior of Knee Braced Steel Structures

Edris Farokhi — 2015-09-21

American Journal of Engineering and Applied Sciences, Published online: 21 September 2015; doi:10.3844/ajeassp.2015.567.574

In Knee-Braced Frames (KBF), the brace is connected to the knee element rather than the beam-column joint. For reasons such as having sufficient lateral stiffness despite its adequate ductile behavior...

Effect of Exhaust Gas Temperature on the Performance of Automobile Adsorption Air-Conditioner

Abdul Hadi N. Khalifa — 2015-10-13

American Journal of Engineering and Applied Sciences, Published online: 13 October 2015; doi:10.3844/ajeassp.2015.575.581

An adsorption air conditioning unit of two beds was designed and built. Each bed was constructed from two concentric copper pipes sets, the length of the pipes in each set was 1500 mm pipe. The inner ...

Improving Medical Imaging and Blood Flow Measurement by using a New Doppler Effect Relationship

Florian Ion T. Petrescu — 2015-10-14

American Journal of Engineering and Applied Sciences, Published online: 14 October 2015; doi:10.3844/ajeassp.2015.582.588

The Doppler Effect represents the frequency variation of the waves, received by an observer which is drawing (coming), respectively it’s removing (going), from a wave spring (source). One proposes t...

Structural Dynamics of the Distribution Mechanism with Rocking Tappet with Roll

Florian Ion T. Petrescu — 2015-10-28

American Journal of Engineering and Applied Sciences, Published online: 28 October 2015; doi:10.3844/ajeassp.2015.589.601

In this study, the authors present a new method to dynamically synthesize a mechanism with rotary cam and rotated tappet with roll, used with priority at the distribution mechanisms from the heat engi...

Process is Unreliable and Quantity Discounts Supply Chain Integration Inventory Model

Ming-Feng Yang — 2015-10-29

American Journal of Engineering and Applied Sciences, Published online: 29 October 2015; doi:10.3844/ajeassp.2015.602.610

This paper mainly focuses on the discussion of the best economic production quantity of process unreliable and defective items reproduce of the production system. In today's production and manufacturi...

Study of Heat-Treated Steel and Related Applications

Shu-Ping Chang — 2015-10-30

American Journal of Engineering and Applied Sciences, Published online: 30 October 2015; doi:10.3844/ajeassp.2015.611.619

Numerous studies conducted after the 921 earthquake in Taiwan in 1999 have reported that because heat-treated steel features relatively unstable mechanics properties, using such steel in welding, bar ...

Semi Active Tuned Mass Dampers of Buildings: A Simple Control Option

Demetris Demetriou — 2015-10-30

American Journal of Engineering and Applied Sciences, Published online: 30 October 2015; doi:10.3844/ajeassp.2015.620.632

The present study investigates the effectiveness of a Proportional-Integral-Derivative (PID) controlled Variable Damping Semi-Active Tuned Mass Damper (VD-STMD) on reducing the vibration response of a...

Computational Intelligence and Application of Frame Theory in Communication Systems

Rajupillai, K. — 2015-10-30

American Journal of Engineering and Applied Sciences, Published online: 30 October 2015; doi:10.3844/ajeassp.2015.633.637

In this study, we have to discuss the reduction of noise due to peak amplitude and power ratio in multi carrier modulation scheme like Orthogonal Frequency Division Multiplexing (OFDM) process using F...

Well Test and PTA for Reservoir Characterization of Key Properties

Okotie Sylvester — 2015-10-30

American Journal of Engineering and Applied Sciences, Published online: 30 October 2015; doi:10.3844/ajeassp.2015.638.647

The characterization of a reservoir is a process which starts from the beginning of the field (oil or gas) discovery and continuous to the field’s abandonment. It quantitatively or qualitatively des...

Parameters Optimization of Adaptive Cashew Shelling Cutter Based on BP Neural Network and Genetic Algorithm

Yun-Fei Fu — 2015-11-01

American Journal of Engineering and Applied Sciences, Published online: 1 November 2015; doi:10.3844/ajeassp.2015.648.658

The aim of this study is to determine the optimal parameters of the adaptive cashew shelling cutter. To meet the requirements of cashew nut processing enterprises, this study takes the whole-kernel ra...

The Use of the Super Absorbent Polymer as Water Blocker in Concrete Structures

Moayyad Al-Nasra — 2015-11-06

American Journal of Engineering and Applied Sciences, Published online: 6 November 2015; doi:10.3844/ajeassp.2015.659.665

Adding super absorbent polymer to the concrete mix improves the performance of the concrete in its both stages; fresh concrete and hardened concrete. The super absorbent polymer has the ability to abs...

Experimental Evaluation of the Raking Energy in Damping System of Steel Stud Partition Walls

Salah Amer — 2015-11-06

American Journal of Engineering and Applied Sciences, Published online: 6 November 2015; doi:10.3844/ajeassp.2015.666.677

Nonstructural partition walls are usually specified based on the best practice without any structural design calculations. However, given the likely severe earthquake damage to nonstructural component...

Report on the Evaluation of Ugua J2 and J3 Reservoir Performance

Okotie Sylvester — 2015-11-07

American Journal of Engineering and Applied Sciences, Published online: 7 November 2015; doi:10.3844/ajeassp.2015.678.688

Globally, there are different techniques applied in the industry such as analog, volumetric, decline curve, material balance and simulation methods to estimate hydrocarbon reserves which depends upon ...

Design and Realization of Pre-Amplifier and Filters for on-Board Radar System

N. Dinesh Kumar — 2015-11-09

American Journal of Engineering and Applied Sciences, Published online: 9 November 2015; doi:10.3844/ajeassp.2015.689.701

Today's warfare situation incorporates a considerable measure of innovative weaponry and every nation is attempting to outmaneuver the other utilizing high engineering, henceforth it is of most extrem...

Ultra Low Power MUX Based Compressors for Wallace and Dadda Multipliers in Sub-threshold Regime

Priya Gupta — 2015-11-17

American Journal of Engineering and Applied Sciences, Published online: 17 November 2015; doi:10.3844/ajeassp.2015.702.716

The computing efficiency of modern column compression multipliers offers a highly efficient solution to the binary multiplication problem and is well suited for VLSI implementations. The various analy...

Verification of Anchoring in Foundations of Wind Turbine Towers

Nafsika Stavridou — 2015-11-23

American Journal of Engineering and Applied Sciences, Published online: 23 November 2015; doi:10.3844/ajeassp.2015.717.729

Tubular steel towers are the most common supporting structure of wind converters. The towers’ foundation covers an important part of the initial cost and its configuration depends heavily on the typ...

Bayesian Statistical Inference for Number Counting Experiments

Diego Casadei — 2015-11-27

American Journal of Engineering and Applied Sciences, Published online: 27 November 2015; doi:10.3844/ajeassp.2015.730.735

Statistical inference describes how to infer about the true but unknown population from the measured sample and is a fundamental ingredient in scientific data analysis. Often one knows the probability...

A Scheme Design of Cloud + End Technology in Demand Side Management

Leijiao Ge — 2015-11-29

American Journal of Engineering and Applied Sciences, Published online: 29 November 2015; doi:10.3844/ajeassp.2015.736.747

Demand Side Management (DSM) plays an important role in Smart Grid. It has large scale access points, massive users, heterogeneous infrastructure and dispersive participants. Moreover, cloud computing...

Seismic Design of Masonry and Reinforced Concrete Infilled Frames: A Comprehensive Overview

Marina L. Moretti — 2015-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2015; doi:10.3844/ajeassp.2015.748.766

Despite the extensive research on the seismic behavior of infilled frames since 1960’s, there is no general consensus towards a unified approach. Purpose of this study is to review the existing anal...

Confluences among Big Data, Finite Element Analysis and High Performance Computing

Lidong Wang — 2015-07-15

American Journal of Engineering and Applied Sciences, Published online: 15 July 2015; doi:10.3844/ajeassp.2015.767.774

Big Data analyzes correlations from huge raw data and predicts outcomes. It has great impacts on scientific discoveries and value creation. High Performance Computing (HPC) uses parallel processing an...