MEC 322 Lecture : week 1 notes.docx

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10 Mar 2012

School

Ryerson University

Department

Mechanical Engineering

Course

MEC 322

Professor

Krishnan Venkatakrishnan

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Document Summary

Metrology:(from greek metron" (measure, and logy) is a science of measurement. Metrology includes all theoretical and practical aspect of measurement. What has allowed the development of modern manufacturing is the concept of interchangeable parts. In modern manufacturing, the design engineer designs each part to a certain dimension and tolerance in order that the parts will function together. Metrology is used by the manufacturing engineer to measure that the parts are within tolerance. Factors that determine the performance of a manufactured product, other than mechanical and physical properties, include : dimensions -linear or angular sizes of a component specified on the part drawing. Tolerances -allowable variations from the specified part dimensions that are permitted in manufacturing. Dimensions on part drawings represent nominal or basic sizes of the part and its features. The dimension indicates the part size desired by the designer, if the part could be made with no errors or variations in the fabrication process.

Related Questions

3.3 An American First

Written by Harriet Beecher Stowe, this American novel was the first to sell over one million copies. What was its title?

To answer the question, correct the sentences below by replacing each underlined word with its antonym. Choose your answers from the words after the sentences. Write the letter of each answer in the space above its sentence number at the bottom of the page. You will need to divide the letters into words. Some letters are provided.

1. The use of robots has made the manufacturing process more wasteful.

2. A con artist can convince a skeptical person to buy just about anything.

3. The champions were a weak football team.

4. Being an experience chess player, the next move was uncertain to James.

5. Lindsay was sure that the cost for the modest party was excessive.

6. The events of the enjoyable story built to a confused conclusion.

7. After wearing a suit to work all week, Sean likes to wear formal clothes during the weekend.

Please refer to the second page attached for the antonym words.

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Write a critical response

France: The country’s first ‘saviour sibling’ is a ‘double-hope baby’
By Annick Chapoy on July 18th, 2011
The birth, in France, of its first baby to be conceived by artificial insemination on top of the selection of an embryo based on its blood, has sent new flames into the hot parliamentary debate over the reform of bioethics law.
The child’s deliberate embryonic selection rested on it not having the gene for beta thalasaemia, and its birth potential to help cure beta-thalasaemia suffered by two older siblings. Theoretically, the use of ‘saviour siblings’ has been allowed since 2006, when the 2004 Bioethics Law and associated decrees was passed. The USA has utilised this for about ten years, but such a birth is rare in Europe – and, depending on the results of a current debate, might become even rarer in France.
Umut-Talha, a name meaning 'our hope' in Turkish, entered life this February in Clamart, south-west of Paris. He weighed 3.65kg and was pronounced ‘very healthy’. His birth resulted from in vitro fertilisation after a double pre-implant genetic diagnosis that enabled doctors to choose an embryo that would not carry the disorder beta-thalasaemia, and whose blood and tissue would be compatible with that of his brother and sister. This type of technique was legalised in France with the Bioethics Law of 2004, but is still the source of great controversy in the public.
It is the first successful birth resulting from this type of pregnancy in the country. The practice is legal in numerous other European countries, including Spain and Belgium where, in 2005, the first two 'medicine babies' in Europe were born. The first birth of this type took place in the USA in 2000.
France’s first so-called ‘saviour sibling’ was born to parents of Turkish origin and he was conceived under circumstances that would have been unthinkable only a generation ago. Umut Talha’s parents had approached the hospital in Clamart just over a year ago. They had a serious problem - their two youngsters were both afflicted with the inherited blood disorder beta thalasaemia, which requires monthly blood transfusions. The parents knew the hospital was one of only three in France that was developing a treatment for their children's illness.
An embryo was screened and genetically selected from an original group of 12 embryos. It was chosen to ensure it did not carry the Beta thalasaemia gene and also due to its compatibility with the sick siblings. Besides selecting an offspring that would be spared from the disorder, the parents hoped their future baby could also become a donor of the right kind of treatment cells.
Born disorder-free, the baby’s cells also proved compatible with his two-year-old sister. Doctors feel confident that she will be cured with the cells from his discarded umbilical cord, and her monthly blood transfusions will be discontinued.
The family have since returned to their home in southern France, but plan to return to Clamart to undergo the same procedure to cure their other child, Umut’s four-year-old brother.
Following his birth, French newspapers spread ‘Medicine baby’ headlines across their pages. However, Professor René Frydman, a fertility pioneer and the ‘medical father’ of the first French test-tube baby in 1982, oversaw Umut’s case, said he preferred the term ‘double-hope baby’.
‘Medicine baby is a media term invented by people who are against this kind of procedure,’ said Prof. Frydman. In English-speaking countries, the terms ‘donor baby’ and ‘saviour sibling’ have been widely used in the media.
Umut certainly presents a double hope for his parents: the hope of having a new, healthy baby, and the hope of curing one of their sick children.
However, other scientists, religious groups and parents beg to differ. The issue of saviour babies has raised complex ethical debates, and renewed fears of a move towards ‘designer babies’, or babies whose traits – e.g. intelligence, eye-colour and height – have been predetermined.
Thus, Umut’s birth has raised questions among medical, political as well as religious circles in France. Christine Boutin, President of the Christian-Democratic party, denounced an ‘instrumentalisation of the human being, conceived in the sole purpose of being used’, while the head of the Bishop’s Conference said he was ‘totally opposed to a procedure by which somebody is being used exclusively to serve somebody else’.
The timing of Umut's birth was also significantly timely - just as the very law that allows for cases such as this to be revised. Observers say that the existing legislation guiding biotechnology in France might be tightened and restrict research in certain fields, including stem cells.
The country’s standing bioethics law allows for cases like Umut’s. In fact, the government has earmarked €800,000 per year for Clamart to practice and develop the procedure.
Nonetheless, Prof. Frydman and colleagues say a lot more needs to be done, complaining of endless hurdles to launch further research and access funds. They regret that France has started a decade after the USA and that the government is still reluctant to give them full backing.

champagnelocust794

*Please refer to the attached file.

You are writing a rough draft for the essay part 1,

This writing practice will focus on

Steps *1 and *2 below:

___________________

FIVE STEPS OF WRITING~*1- Prewrite*2-Draft 3- Revise 4- Edit/Proofread 5- Publish

Expository Essay Part 1

Student Resource

EXPOSITORY ESSAY

– explains, points out

Used in articles, essays, exam questions

- Used to report on research

- Used to share information, give directions

REVIEW:

Elements of Expository Essay:

Thesis

–

Thesis Statement states topic, introduces supporting points

Structure

–

- Organization - often by Cause/Effect, Problem/Solution, Compare/Contrast

- Supporting paragraphs (at least one per supporting point)

- Use of formatting, graphics, and multi-media where appropriate

- Conclusion - relates to thesis and pulls supporting points together

Style

–

- Formal tone - complete sentences; conventional construction and language

- Active voice

Assignment:

Complete the first

two

steps in writing an Expository Essay.

You can use the sample writing prompt on Page 3 or choose a topic based on stories/articles of

your choosing. Page 3 also gives a sample thesis and outline based on the writing prompt. If

writing on your own topic and texts, choose three texts from different genres – e.g., short story,

science fiction, poetry, memoir, informational text, etc.

Step 1)

Prewrite

– Write your thesis statement.

– Determine the structure and organization (e.g., compare/contrast).

– Make an Outline (should include the thesis statement plus a list of

supporting points and a conclusion).

Step 2)

Draft

– Follow your Outline.

– Consider the audience's knowledge of and experience with the topic.

– Give concrete examples (each supporting point should be at least one

paragraph).

– Relate each point back to the thesis statement.

– Draw a conclusion that relates to the thesis statement and ties the

supporting points together.

Expository Essay Part 1

Student Resource

EXPOSITORY ESSAY - SAMPLE THESIS AND OUTLINE

WRITING PROMPT

Compare/contrast the authors' treatments of the theme of

taking

responsibility

in three different genres of text:

Short Story

–"Through the Tunnel,"

Science

Fiction

– "A Sound of Thunder," and

Informational Text

– "Quit blaming; take responsibility."

Thesis

Authors Lessing, Bradbury, and Gitomer, writing in three different textual genres,

each address the theme of taking responsibility by contrasting instances of responsible and

irresponsible behavior and drawing the conclusion of the benefits of taking responsibility.

Supporting paragraphs

– with formatting (subtitles):

1. Short Story

– Lessing ("Through the Tunnel") contrasts Jerry's irresponsible/ responsible

behavior and draws conclusion responsibility is best – Jerry feels better about himself.

- Irresponsible: Jerry tries to get attention, be accepted by other boys; wants to swim

through tunnel before ready (examples from story)

- Responsible: Jerry stops trying to please other boys; adopts his quest; trains and works

to be prepared (examples from story)

- Lessing draws unstated conclusion of benefits of taking responsibility

(contrasts Jerry's feelings before and after quest)

2. Science Fiction

– Bradbury ("A Sound of Thunder") contrasts Time Safari Inc.'s/ Eckels'

responsible/irresponsible behavior and graphically illustrates the devastating results of

irresponsibility.

- Irresponsible: Eckels' uncaring, irresponsible attitude (examples in story)

- Responsible: Time Safari's careful planning and preparation for the hunt

(examples

from story)

- Bradbury ends story showing dramatic impact of being irresponsible, implying the

benefits of responsibility

3. Informational Text

–

Gitomer ("Quit blaming; take responsibility") compares salespeople

with politicians in their tendency to avoid taking responsibility and contrasts that attitude with

suggestions on taking responsibility to achieve success.

- Irresponsible: Salespeople and politicians blame others for their failures

(specific examples from article)

- Responsible: Suggestions on how they can take responsibility by

studying failures and

making them successes (examples in article)

- Gitomer concludes that salespeople (and politicians) can achieve results

they seek by

overcoming obstacles and taking responsibility

Conclusion

Authors Lessing, Bradbury, and Gitomer, writing in three different textual

genres, each address the theme of taking responsibility by contrasting instances of responsible

and irresponsible behavior, concluding that taking responsibility brings the best r

This writing practice will focus on

Steps *1 and *2 below:

___________________

FIVE STEPS OF WRITING ~* 1-Prewrite* 2- Draft 3- Revise\ 4- Edit/Proofread 5- Publish

Expository Essay Part 1

Student Resource

EXPOSITORY ESSAY

– explains, points out

Used in articles, essays, exam questions

- Used to report on research

- Used to share information, give directions

REVIEW:

Elements of Expository Essay:

Thesis

–

Thesis Statement states topic, introduces supporting points

Structure

–

- Organization - often by Cause/Effect, Problem/Solution, Compare/Contrast

- Supporting paragraphs (at least one per supporting point)

- Use of formatting, graphics, and multi-media where appropriate

- Conclusion - relates to thesis and pulls supporting points together

Style

–

- Formal tone - complete sentences; conventional construction and language

- Active voice

Assignment:

Complete the first

two

steps in writing an Expository Essay.

You can use the sample writing prompt on Page 3 or choose a topic based on stories/articles of

your choosing. Page 3 also gives a sample thesis and outline based on the writing prompt. If

writing on your own topic and texts, choose three texts from different genres – e.g., short story,

science fiction, poetry, memoir, informational text, etc.

Step 1)

Prewrite

– Write your thesis statement.

– Determine the structure and organization (e.g., compare/contrast).

– Make an Outline (should include the thesis statement plus a list of

supporting points and a conclusion).

Step 2)

Draft

– Follow your Outline.

– Consider the audience's knowledge of and experience with the topic.

– Give concrete examples (each supporting point should be at least one

paragraph).

– Relate each point back to the thesis statement.

– Draw a conclusion that relates to the thesis statement and ties the

supporting points together.

Expository Essay Part 1

Student Resource

EXPOSITORY ESSAY - SAMPLE THESIS AND OUTLINE

WRITING PROMPT

Compare/contrast the authors' treatments of the theme of

taking

responsibility

in three different genres of text:

Short Story

–"Through the Tunnel,"

Science

Fiction

– "A Sound of Thunder," and

Informational Text

– "Quit blaming; take responsibility."

Thesis

Authors Lessing, Bradbury, and Gitomer, writing in three different textual genres,

each address the theme of taking responsibility by contrasting instances of responsible and

irresponsible behavior and drawing the conclusion of the benefits of taking responsibility.

Supporting paragraphs

– with formatting (subtitles):

1. Short Story

– Lessing ("Through the Tunnel") contrasts Jerry's irresponsible/ responsible

behavior and draws conclusion responsibility is best – Jerry feels better about himself.

- Irresponsible: Jerry tries to get attention, be accepted by other boys; wants to swim

through tunnel before ready (examples from story)

- Responsible: Jerry stops trying to please other boys; adopts his quest; trains and works

to be prepared (examples from story)

- Lessing draws unstated conclusion of benefits of taking responsibility

(contrasts Jerry's feelings before and after quest)

2. Science Fiction

– Bradbury ("A Sound of Thunder") contrasts Time Safari Inc.'s/ Eckels'

responsible/irresponsible behavior and graphically illustrates the devastating results of

irresponsibility.

- Irresponsible: Eckels' uncaring, irresponsible attitude (examples in story)

- Responsible: Time Safari's careful planning and preparation for the hunt

(examples

from story)

- Bradbury ends story showing dramatic impact of being irresponsible, implying the

benefits of responsibility

3. Informational Text

–

Gitomer ("Quit blaming; take responsibility") compares salespeople

with politicians in their tendency to avoid taking responsibility and contrasts that attitude with

suggestions on taking responsibility to achieve success.

- Irresponsible: Salespeople and politicians blame others for their failures

(specific examples from article)

- Responsible: Suggestions on how they can take responsibility by

studying failures and

making them successes (examples in article)

- Gitomer concludes that salespeople (and politicians) can achieve results

they seek by

overcoming obstacles and taking responsibility

Conclusion

Authors Lessing, Bradbury, and Gitomer, writing in three different textual

genres, each address the theme of taking responsibility by contrasting instances of responsible

and irresponsible behavior, concluding that taking responsibility brings the best r

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MEC 322 Lecture : week 1 notes.docx

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