Alternative technologies to fuel

My presentation is about the new technologies coming up on the market to replace gasoline powered cars by greener technologies. The three main technologies that are actually dominating are: hybrid cars, all-electric vehicles and hydrogen-powered fuel cells cars. For each of those, I will explain you the basics on how they work, show you some examples of cars using those technologies and finally compare the advantages vs. disadvantages. At the end of the presentation you should have a better idea of what are those technologies and why they are so important for us.

Fundamental Science and Aerodynamics

Fundamental science affects our lives in many ways. Every object we touch has been through the hands of an engineer, who uses the results of fundamental science research to create safe and useful designs. Aerodynamics is no exception in the use of fundamental science, which led to the source, sink and point vortex assumptions, developed at the turn of the century and still useful today.

Geometric Dimensioning and Tolerancing (GD&T)

Geometric dimensioning and tolerancing respects the function and the relationship of one part, saving money by giving tolerance bonuse in some situations. It fits better sophisticated engineering techniques than older tolerancing methods as it provides interchangeability of a part. Fourteen symbols, expressed in a feature control frame, define the various possibilities to control a feature.

R/C aircraft modelling

Remote controlled aircraft, which were at first heavy and unreliable, have evolved to become lighter, safer machines with incredible power, offering endless possibilities. If money is not an issue, one can get anything ranging from an indoor electric helicopter to a 30 pound turbine powered jet! Anyone can learn to build and fly an RC aircraft once they know the basics...

Survey Summary

Now that you have collected data for a survey, you will write up a summary of the findings. In your summary you will:

• describe the purpose of your survey
• describe the survey results (the number of respondents, the types of questions, etc) followed by an analysis of the results (your interpretation of the data)
• explain whether or not the survey met your goals and why or why not. Elaborate on what you learned from the data and from creating a survey and what you would do differently in a future survey.

Post your summary directly under the link for your survey.

Survey on Grocery Consumption

This survey was used to define the target audience for recipe books. The preferred portion size, cooking style and ingredients were important elements to be established by the survey, as well as consumption habits. A little less than thirty (in fact, 28) people answered this survey. The average respondent is part of a household of 2 or 3 members and spends $100 to $120 weekly on groceries. The average grocery purchased is composed of 20% to 40% vegetables, 20% to 40% meat and substitutes and less than 20% each of flour products, prepared foods and desserts. The choice of a recipe is based mostly on whether it tastes better or whether it is better for health. Our respondents have mixed feelings about organic food: 44% believe in buying it while 48% don’t. Desserts are usually eaten after dinner. Preparation for breakfast must take less than 15 minutes, preparation for lunch between 15 and 30 minutes and preparation for dinner between 30 minutes and an hour. A majority of respondents prefer stovetop cooking, followed by oven-baked meals. Recipes are mostly gathered from recipe books and friends and family. In general, people are not influenced by food advertising. Overall, the survey met our goals. It gave a precise portrait of the target audience for a recipe book and the criteria used to select recipes. Questions #5 and #10 are not specific enough, question #3 would benefit from a 10% incremental scale starting at 0% and question #2 needs ''per person'' added at the end of the question. It is difficult to prepare a survey that can reach each person’s possible answer. In a future survey, we would ask clearer and more precise questions.

William and Ghislain


Our analysis of the survey reveals that most people spend around 60 dollars per person per week on groceries. Most people spend a relatively small percentage of money on frozen foods; less than 20%. This is rather surprising because the frozen/prepared foods section has grown a lot in the past decade. We believe that people may not have answered entirely honestly to this question because the purchase of frozen foods is badly seen in today's society. We can back this up because the majority answered ''NO'' to wheather or not they believed in buying organic foods. The survey also revealed that people spend more time cooking dinner than they do lunch, and they spend yet again more time on lunch than they do on breakfast. Although we cannot see a commun theme to the questions of the survey, it does provide interesting results for analysis.


Pawel & Vincent

Survey on the Environment

The purpose of our survey was to find out how people are concerned about the environment. We wanted to learn on people's everyday life habits and their impact on the nature. The results of our survey were sometimes surprising; we didn't expect people to be as much environmentally friendly. For example, people dispose in a responsible way of their harmful wastes: 45% of them said that they dispose correctly of their old batteries. Also, 75% of the respondents are aware that paper billing is a big waste of paper and trees. Therefore, they use electronic billing services. Energy-efficient products were bought by 84% of the respondents in the past year. And a majority of 79.2% use electricity to heat their homes over natural gas and oil. But, we found that still a lot of people use their personnal car for daily use. On one hand, the survey met our goal because we could rapidly evaluate people’s habits and their effect on the environment. On the other hand, there was only 25 respondents to our survey, it might no be as accurate as a large scale survey.

Pierre-Luc and Ian

Twenty five people responded to the survey about what individuals do to care for the environment. The questions explore diverse aspects of caring for the environment starting with the use of a motor vehicle and the frequency to recycling habits and habits concerning dangerous waste disposal such as batteries. While analyzing the results of the survey we notice that the car remains the most common method of transportation even though most of the clientele surveyed are students. None of the people surveyed own a Hybrid vehicle which was not very surprising considering the high price tag on those vehicles. We noticed in the survey results that most respondants have the good habit of recycling most of the materials that we come across in our daily lives such as paper, plastic & cardboard. We also noticed that most of the dangerous waste is disposed of in a proper manner by our surveyed students.
Creating a survey is a challenging experience where questions must be worded in a way that leaves no room for various interpretation. If this experience was to be repeated I believe that the surveyed people should come from different backgrounds as I believe that survey results can almost be predicted when the people surveyed all come from similar backgrounds i.e. ENA students. Survey's are amazing and allow the surveyors to obtain an overall picture on any given topic within a fairly small amount of time and minimal effort.

Pascal H