Monday, 7 July 2014

Literature review

Too Hot! Too Cold! Temperature Affects Productivity  . (2010, April 1). Too Hot! Too Cold! Temperature Affects Productivity. Retrieved July 4, 2014, from http://www.shrm.org/publications/hrnews/pages/toohottoocold.aspx

Indoor Air Quality Scientific Findings Resource Bankhttp://www.iaqscience.lbl.gov/. (n.d.). Indoor Air Quality Scientific Findings Resource Bank : Impacts of Indoor Environments on Human Performance and Productivity : Temperature and Office Work Performance. Retrieved July 8, 2014, from http://www.iaqscience.lbl.gov/si/performance-temp-office.html


SHRM Online staff  (2010, April 1) said 4,285 full-time U.S. workers that found 22 percent claiming a too-hot workplace makes it difficult to concentrate at work. Eleven percent made the same claim about chilly workplaces.



Workplace performance increases with temperatures up to between 69.8 degrees and 71.6 degrees Fahrenheit (21 degrees to 22 degrees Celsius), with the highest productivity at around 71.6 degrees Fahrenheit.
Lawrence Berkely(N.D.) In 2006, a formal statistical analysis of 24 of these studies was completed to assess the average relationship between temperature and performance of work. The authors primarily analysed office studies and laboratory studies that simulated office work, although three of 24 studies were performed in classrooms. Their analyses are the source of Figure 1 illustrating a best estimate of how office work performance varies with temperature. The graph in Figure 1 shows that performance is maximised when the air temperature is approximately 22 °C. As the indoor air temperature rises above or falls below 22 °C, work performance decreases. The equation for the curve in Figure 1, resulting from the statistical analysis, is
where
P is performance relative to the maximum value
TC is room temperature, °C.
The equation should not be used for temperatures below 15 °C or above 32 °C.

Thursday, 3 July 2014

Literature Review

Wireless LAN communications typically are based on radio frequency signals that require a clear and unobstructed transmission path. Radio frequency Interference is one of the factor that causes interference.(Harwood,2009)

Generating Research Questions



Wednesday, 2 July 2014

Question

Questions



How does solar flares affect communication signals? (Wynn)

Why does things move faster when they have an aerodynamic shape? (Wynn)

Tuesday, 1 July 2014

What is science

Science is the process where we understand the phenomena that is happening around us and we apply it to our daily lives.

The Scientific method and the Engineering method

Scientific Method
  • The scientific method is a way to ask and answer scientific questions by making observations and doing experiments.
  • The steps of the scientific method are to:
      • Ask a Question
      • Do Background Research
      • Construct a Hypothesis
      • Test Your Hypothesis by Doing an Experiment
      • Analyze Your Data and Draw a Conclusion
      • Communicate Your Results
    • It is important for your experiment to be a fair test. A "fair test" occurs when you change only one factor (variable) and keep all other conditions the same.
    • While scientists study how nature works, engineers create new things, such as products, websites, environments, and experiences.
      • If your project involves creating or inventing something new, your project might better fit the steps of The Engineering Design Process.
      • If you are not sure if your project is a scientific or engineering project, you should read Comparing the Engineering Design Process and the Scientific Method.
Engineering Method
    • The engineering design process is a series of steps that engineers follow to come up with a solution to a problem. Many times the solution involves designing a product (like a machine or computer code) that meets certain criteria and/or accomplishes a certain task.
      • This process is different from the Steps of the Scientific Method, which you may be more familiar with. If your project involves making observations and doing experiments, you should probably follow the Scientific Method. If your project involves designing, building, and testing something, you should probably follow the Engineering Design Process. If you still are not sure which process to follow, you should read Comparing the Engineering Design Process and the Scientific Method.
    • The steps of the engineering design process are to:
      • Define the Problem
      • Do Background Research
      • Specify Requirements
      • Brainstorm Solutions
      • Choose the Best Solution
      • Do Development Work
      • Build a Prototype
      • Test and Redesign
    • Engineers do not always follow the engineering design process steps in order, one after another. It is very common to design something, test it, find a problem, and then go back to an earlier step to make a modification or change to your design. This way of working is called iteration, and it is likely that your process will do the same!

Comparing Scientific Method and Engineering Method

    • If your project involves creating or inventing something new, your project might better fit the steps of The Engineering Design Process.
    • If you are not sure if your project is a scientific or engineering project, you should read Comparing the Engineering Design Process and the Scientific Method.While scientists study how nature works, engineers create new things, such as products, websites, environments, and experiences. Because engineers and scientists have different objectives, they follow different processes in their work. Scientists perform experiments using the scientific method; whereas, engineers follow the creativity-based engineering design process.Both processes can be broken down into a series of steps, as seen in the diagram and table.