Engineering essays

Abstract Polymer nanocomposite proton exchange membranes (PEMs) based on Sulfonated Poly (ether ether ketone) and varied content of MMT nanoclay is developed by solution casting method. The degree of sulfonation of synthesized SPEEK polymer is 64% obtained from the 1H-NMR peak integration. The chemical and structural interactions of the membranes are explored by using FT-IR, … Read more

Introduction Stolt-Nielsen is a shipping company with around 100 chemical tankers. The Stolt-Nielsen Short Sea fleet has 20 ships out of which 6 ships at 23 years of age , in 2 years they will be too old for the most oil companies acceptance. So between now and 2 years they have to start building … Read more

Literature Review 2.1. Introduction This chapter provides background and a literature review regarding the progressive collapse of buildings. First, the definition and famous examples of progressive collapse are presented. Next, design approaches and analysis procedures for progressive collapse of buildings are described. Next, the current guidelines for the prevention of progressive collapse are reviewed. Especially, … Read more

It is common in the construction industry in UK to overruns the cost and timely delay in construction projects, in spite of the latest management technologies and techniques, the cost and time objectives cannot be achieved. They are many single or compound reasons, potentially causing this problems, start from the initial stage of the project … Read more

  Abstract—Congestion control protocols developed in order to resolve the issue of congestion in VANET must ensure a reliable communication of safety-related messages. In this work, we focused on formally verifying Congestion Control (CC) protocol in VANETs using model checking technique. The protocol was formally verified using a network of timed automata. The model was … Read more

Abstract – this paper reviews scientific studies conducted to determine possible human health issues caused by radiations associated with cellular phones. A cellular phone generates radio-frequency (RF) radiation in order to communicate. The human head is often exposed to this radiation. This exposure causes the human body to absorb a certain amount of energy quantified … Read more

1.1 Introduction The observed increase in human numbers requires the establishing of huge factories to meet consumer needs such as furniture, vehicles, electrical appliances, and others. The operation of such factories by standard fuels increases the ratio of pollution due to their residual toxic gases that are the result of fuel arson. From this, a … Read more

Pictures of possible defects are made with the associated coordinates and are then processed into a report. More advanced techniques need to be used to be able to measure the severity, kind and the area of the defect. Using more advanced techniques takes a longer time because the results are much more thorough. Places that … Read more

Change Data Capture and Slowly Changing Dimension for Nearly Real Time Data Warehouse by Using Triggers, Delta View and Staging Tables   Abstract— In the big data era, data become more important for Business Intelligence and Enterprise Data Analytics system operation. The load cycle of traditional data warehouse is fixed and longer, which can’t timely … Read more

1. Introduction A concrete mix initially consisted of a simple mixture of water, cement and aggregates along with the addition of an external vibration to compact and place the concrete. In recent decades however, there has been a remarkable evolution in concrete performance with the inclusion of cement replacement material, mineral and chemical additives. Self-compacting … Read more

  ABSTRACT The way-finding behaviour and response during a fire emergency in a virtual environment was experimentally investigated. Forty participants, divided into two groups, were required to find the emergency exit as soon as possible in a virtual hotel building because of a fire escape demand under condition 1 (Virtual environment without virtual fire, control … Read more

The wall structures may undergo a reduction in stiffness and strength if and when subjected to cycles of alternating loads. The magnitude of deformation / damage primarily depends upon the type of reinforcement (if any) and or the mode of failure. (Meli, 1973) In the following, general remarks on the seismic behaviour of different types … Read more

  INTRODUCTION TO INDUSTRY CHAPTER-1 We wanted to get detail knowledge of the actual working condition of dying mills. For the same purpose, we have visited the RUNGTA MILL. It is situated at UDHANA. We analyzed the whole plant and its operation. During this analysis, we find that there is need of some efficiency and … Read more

INTRODUCTION The springback in sheet metal forming is described as the change of sheet metal shape compared with the shape of the tools after forming process operations. Sheet metals with high strength-to-modulus ratio such as high strength steels and aluminum alloys are particularly prone to springback, and these materials are becoming more important in automotive … Read more

CHAPTER 1 INTRODUCTION Unmanned Aerial Vehicle (UAV) is an inhabited aerial platform used for several military and civilian applications without the risk human losses due to the dangerous type of missions assigned, or extremely required accuracy that cannot be achieved by human control. Among the military applications that UAVs can perform [1]: Reconnaissance, Surveillance. combat … Read more