Engineering and Construction Essays and Research Papers
Analysis and design of concrete pavements
In 2007, the Australian Society for Concrete Pavements (ASCP) was formed with the primary goal of facilitating improvements in the design, quality and construction of concrete pavement in Australia particularly through research, technology, education and information transfer (AS/NZS 4456, 2005).
Modern technological innovations and advancements have significantly enhanced the design of sustainable concrete pavements for highways, parking lots and streets based on particular soil conditions,…Read Text
A New Highway
Dolomite is “[u]sually found as druzes or clusters of small rhombohedral crystals with a somewhat saddle-shape[d], white to tan to pink in color.”5 Dolomite is a very interesting rock. “Dolomite, like calcite, cleaves into six-sided polyhedrons with diamond-shaped faces. Relations between lamellar twinning and cleavage planes of dolomite, however, differ from those of calcite…, and this difference may be used to distinguish the two minerals in coarse-grained rocks such as…Read Text
Contract Administration & Dispute Resolution
No variation can be initiated after the Taking-Over Certificate has been issued. The proposal is usually requested in order to avoid an unnecessary variation orders without full appraisal of its consequences. The Engineer is not allowed to omit a work to be carried out by others and he has no power to amend the contract either. This means all variation order must not differ drastically from what the contractor has contracted to do. The Contractor is allowed under special grounds as part of…Read Text
1.3- Block diagram representation
Block diagram of an operational amplifier.
The input stage is a differential amplifier. The differential amplifier used as an input stage provides differential inputs and a frequency response down to d.c. Special techniques are used to provide the high input impedance necessary for the operational amplifier. The second stage is a high-gain voltage amplifier. This stage may be made from several transistors to provide high gain. A typical operational amplifier…Read Text
Encouraging Communication Channels
The notices are pinned on the notice boards and employees expected to read them. Verbal communication is used on many occasions, YECC have holds regular meetings in accordance to various levels and departments. Each section in the company holds its own meetings and the discussions from the meeting passed to the departments who review what ever was discussed, all these are carried out verbally.
One thing aspect where visual communication is used in the company is how employees and the…Read Text
The results are then compared with the results obtained from real wind tunnel tests. The purpose of this experimental exercise is to help appreciate the importance of virtual testing. This helps ascertain the time and costs saved during the exercise. It also helps in understanding the reason for the closure of large wing tunnels in the U.S and reasons for discrepancies between the two methods used in designing of aircraft. Some of these discrepancies include the effect of differences in surface…Read Text
Geohazard (Geology Report)
The water and wastewater system experienced damages that were not even expected. Since the earthquake took place in a highly populated area, the outcomes were fatal. Water outages went on in Kobe city for 60 days after the earthquake. This long duration of water outages was caused more by the destruction of buried water pipes. The buried water pipes were highly damaged due to the strong ground shaking and modest ground settlements over widespread built areas. Before the day of the earthquake…Read Text
Hydro electricity verses wind turbines in the Waikato (New Zeland)
To ensure that best information was gathered research was structured as follows;
Step1. Develop evaluation and comparison aspects.
Step2. Collect of data
Step3. Assess the power needs and supply for Waikato
Step4. Interview an expert
Step5. Analyze the current and the previous power supply trends in Waikato
Step1.Aspects for evaluation and comparison
From interview data aspects for evaluation and comparison of, - an appropriate method for power production will need to be at…Read Text
Construction: In integrated design process, there are multiple benefits for hiring a contractor before the design is underway. This is because the contractors can have a say in integrating design process and can also suggest materials that are cost-effective and durable and the strategies that are easier to build (Totten, 2007). The resource executives make sure the building is meeting the programming and sustainability requirements. They also make sure the costs estimated during the design…Read Text
Lab#7 Beam Analysis Using Photoelastic Methods
Different plastics have a homogenous behavior when unstressed, but may change into being optical whenever stressed. The alteration of index of refraction involves a function of the stress that is applied in a similar manner to the change in resistance in a gage strain. According to Brewster’s law, the relative alteration in the refraction index is directly proportional to principal strains.
The targets of this experiment involved using the photoelastic methods of measuring stress…Read Text
Soft systems methodology
Analysis of Soft System Methodology in Relation to Construction Projects Content Analysis of the Soft Systems Methodology in Construction Projects.......................3
Merits of Soft Systems Methodology in Construction Projects.................................3
Demerits of the Soft Systems Methodology in Construction Projects.......................5
Application of SSM in Construction Project Risk Management...............................5
Reasons for the Use of SSM in Construction Project…Read Text
Surface mechanical attrition treatment (SMAT) of steel: Nano microstructure on surface of bulk sample
To enhance the service lifetime (R et al., 2010) and the global behavior (R et al., 2010) of material optimization of the surface properties and the micro structures SMAT is an effective approach to apply.
With an extensive and intensive investigations and research on nanostructured materials in the past, more practical evidences via experiments have proofed this emerging class of materials possess a number of properties whose performances are basically from the old conventional course grained…Read Text
Thames tunnel (london)
In 1814 engineer Marc Brunel proposed a plan to construct a tunnel in St Petersburg under river Neva. This proposal was turned down and a bridge constructed instead. Brunel did not give up the idea. He continued to work on his idea for new technique of tunnelling.
In 1918, Thomas Cochrane and Brunel combined efforts to patent the tunnelling shield. This was a revolutionary advancement in the tunnelling technology. In 1823 Brunel came up with a plan to construct a tunnel between Wapping and…Read Text
The design of an automated external defibrillator
Owing to the role played by medical devices in the provision of healthcare services, it is critical that appropriate guidelines and regulations are adhered to (Kramer, Xu and Kesselheim 2012). It is for this reason that biomedical engineering steps in to fill embark on the key aspects of medical devices that involve initial designing, system analysis and practical application to ensure quality and efficient products. Among the medical devices are defibrillators, which play a crucial role in the…Read Text
The great wall of china
Construction, Reconstruction and expansion of the Great Wall of China
This section highlights the pre-first Great Wall, the First Great Wall, the second Great Wall, the third Great Wall, the fourth Great Wall of China and Post Ming Period until the present day.
Pre- the first Great Wall
The wall preceding the first Great Wall is dated back to 685BC-645BC. During this period, the kingdoms of Qi and Chu constructed a wall between their two kingdoms. The wall incorporated natural features in the…Read Text
The MD-11: Its Short-lived Passenger Service
This is very complex. The manufacturer of the aircraft (machine) has to first meet the requirements. Then the corporation has to meet requirements for operation.
The financing determines the possibility of use. In this case the air cargo industry. The economic decision is to recover investment and to keep operating cost low to earn a profit.
One financing method is to purchase the aircraft. This is mostly done for private operations. It is possible for…Read Text
Trace the progress of women in a selected country/geographical region and critically analyze the effects of:
Progress of Women in China Table of Contents I. Introduction 3 II. China Overview 4 III. China and Women- Focus on Laws, Norms of Society and Impact on Women 5
IV. Issues, Challenges Facing Chinese Women in the Technical and Scientific Professions 8
V. Prospects 10
VI. Strategy Recommendations 11
Works Cited 12
China has been in the consciousness of a wide swath of the worlds population for many reasons, chief among them being its ongoing economic ascent, its prominent place in…Read Text
What are the challenges posed for underbalanced drilling operations
This sudden loss also causes particulates within this region to migrate thereby causing a kind of vacuum for the formation to cave in. Aerobic and anaerobic bacteria have the tendency of reacting with these liquids and forming polysaccharide which reduce porosity in the region. (Thomas F.B and Bennion D.B, 1994) These defects can be overcome to an extent if a quality underbalanced drilling is performed.
What is underbalanced drilling?
Underbalanced drilling is carried out when the pressure of…Read Text
Who own's the water in New Zealand
This leads one to think of the articles that are a part of this Act. It talks of the role that the state and its activities that are also related to the process of engineering and construction are to play in the lives and activities of interest to the Maori tribes. The act makes it clear, in the case of water that the activities that would lead to the degradation of the environment would not be allowed to take place at any cost. It also makes clear the New Zealand Government’s commitment…Read Text
Why Is Plasticity Important
According to the research findings, it can, therefore, be said that plasticity is associated with fine-grained soils and not with coarse-grained soils. Coarse-grained soils can be classified on the basis of the size of their constituent particles, whereas for fine-grained soils, particles are too small to be sized. That is why fine-grained soils are classified on the basis of their plasticity.…Read Text