19.10.08
Autobiography is Hard
31.7.08
2.7.08
20080702 你google了嗎?
主講人
Web1.0à
Web2.0à Upload and sharing
RSS2.0 OR ATOM0.2 Software
Sharpreader à reading in your computer http://www.sharpreader.net/
Google reader à reading on internet
Google Gear à download the material in your computer and off-line reading
Youtube
Max. file size = 100Mb
Max. Time = 10 mins.
Gmail
Add ghost mail address à 12345+ad@gmail.com à these mail will mail to 12345@gmail.com (after "+", you can add anything)
Google Search
Example
Site:tw keyword à search web site in
Filetype:doc keyword à search *.doc file
Link:www.google.com.tw àsearch web site that has link to www.google.com.tw
Google desktop à a powerful tool for your personal computer.
18.6.08
Commentary on Stress Intensification Factors (SIF)
A B31 (B31.1, B31.3, B31.4, B31.5, B31.8, B31.9, B31.11) stress intensification factor (SIF) is an empirically derived parameter that allows the designer to estimate the fatigue performance of a piping component or joint. The concept of the parameter was developed in the late 1940s and early 1950s and was incorporated into B31.1 - 1955, which had separate chapters for different piping applications which eventually were published as B31.1, B31.3, B31.4, etc. The original background discussion of SIFs was published in ASME Paper 53-A-51, "Piping-Flexibility Analysis" by A.R.C. Markl. (This paper is highly recommended reading for any serious student of piping design.) In the 1955 B31.1 document, SIFs were tabularized in Chapter 6, but subsequent separate publication of the B31 books (B31.1, B31.3, B31.4, etc.) have in many cases resulted in different SIFs for the same piping components and joints. However, there is absolutely no justification for having different SIFs for different applications. The differences are from a lack of communication between the ASME committees responsible for the development of the B31 books.
The SIF (i) parameter was and still is determined through testing by applying a reversing displacement to, i.e., developing an alternating stress in, an assembly of piping elements containing the piping component or joint under consideration. The reversing displacement is applied to the assembly until a fatigue failure occurs – fatigue failure being defined as crack initiation and propagation through the wall such that a leak occurs in the pressure boundary in or near the piping component or joint under consideration. The process is repeated by applying various reversing displacements to similar assemblies, developing an alternating stress/number of cycles to failure curve for the piping component or joint. The resulting curve is compared to a reference curve to determine the SIF. The reference curve is the failure curve for an as-welded circumferential butt weld, where the SIF for the butt weld is assigned a value of unity (i = 1.0).
But, the actual stress in an as-welded circumferential butt weld in nominal pipe intuitively and logically must be greater than the actual stress in the same size nominal pipe without a weld. However, the B31 "intensified" bending stress at a butt weld is equal to the SIF (i = 1.0) times the nominal stress (M/Z) at the butt weld. Thus, at a butt weld the B31 "intensified" stress is equal to the calculated nominal stress. This has caused and continues to cause considerable confusion in pressure component design, especially amongst serious analytic types who often claim that B31 "intensified" stresses are wrong, i.e., too low, when compared to actual or theoretical stresses. B31 acknowledges that B31 "intensified" stresses (iM/Z) are less than actual or theoretical stresses. However, in this case, what is not understood is that the B31 allowable fatigue (flexibility) stresses are correspondingly low when compared to the allowable fatigue stresses for components when actual or theoretical stresses are evaluated – the factor of safety in a B31 fatigue analysis is comparable to the factor of safety in an actual or theoretical analysis.
When actual or theoretical fatigue stresses are evaluated in nuclear Class 1 piping services, stress indices (not SIFs) are used. Stress indices are theoretically developed parameters that are (like SIFs) a measure of the fatigue performance of a nuclear Class 1 piping component or joint. In this case, however, fatigue failure is defined merely as crack initiation in the piping component or joint (as opposed to through-wall crack propagation). As noted above, the allowable fatigue stresses for nuclear Class 1 services are correspondingly higher than B31 allowable fatigue (flexibility) stresses.
What the B31 designer must remember is that he/she is calculating an "intensified" (or "effective") stress, not an actual or theoretical stress.
But why, in a time approaching an analytic utopia, is the B31 designer still using these "ancient" SIFs? The answer is simple. B31 SIFs are simple to determine and apply (simplified methods are necessary to gain the widest possible application and there's a lot of pipe to design). B31 SIFs are consistent with the technology of the piping industry (we are typically not building watches). Determining actual or theoretical stresses is usually more expensive and complicated (compare a nuclear Class 1 piping analysis with a B31.1 analysis or, if you're not conversant with things nuclear, compare a Section VIII, Division 2 analysis to Section VIII, Division 1 analysis, it's the same difference). And perhaps the best reason for using B31 SIFs is that the piping industry has almost 50 years of validating experience with them (most of the SIFs proposed by Markl are still accurate within the context of good engineering practice and good engineering is more than a worthwhile commodity).
Author: Mr. Ron Haupt, P. E., of Pressure Piping Engineering (www.ppea.net) is a member of several piping code committees (B31, B31.1, B31.3, BPTCS, and others). He consults with us in the capacity of Nuclear QA Manager.
學習以老師或學生為中心的差異
| | 老師為中心 | 學生為中心 |
| | | |
| 責任 | 老師與學生皆須學生之學習責任 | 學生自己得主動學習 |
| | | |
| 學習方式 | 受老師準備的內 | 學生自己得建構自己的學習方式 |
| | | |
| 內容 | 學習內 | 學生得自己尋找學習的材料,需要求救 |
| | | |
| 優點 | 運用於制式化的考試, 效果佳、時間短 | 面對沒有標準答案的現實世界,此法比較容易適應 |
| | | |
| 缺點 | 受老師影響大 | 可能會比較花時間 |
| | | |
| 效果 | 短暫,可能考過就忘。 | 較長久。 |
| | | |
| 結果 | 遇到真實問題時,可能還是不會解決。 | 遇到真實問題,可能不會解決,但有較多資源尋求解答。 |
Why Blog in Learning English
1.Link:There are so many resources in Internet.
2.Function
3.Trends
4.Constructivism:Construct your learning Model
5.Comunication
Until Now, "Blog" is a very good plateform in learning English.
9.6.08
27.5.08
Student-Run Bookstore 20080527
task school from middle school from
has been very low for the past seven years
to improve students english skill and general literacy
two teachers help to set up a bookstore inside the school
the store provides every variety and interesting books and offerable prices
and opportunity for students to run it themselves.
Seven grade "Rigina" is one of dozen students that help to run bookstore.
they rotate the assignment, greader, ????, cashiers.
they make sure other student get the book they like to read.
"if people wanna hold books, you write it down, and then you hold the book
for either after school or next week."
Price is offortable, ranging from 2 to 3 dollars a book.
Since it opened last two months ago,bobguba says the bookstore school has become favor place for student to hang out.
"My friends and my classmates, they really like the bookstore, because they could read book in the bookstore,
They also could do something during lunch when they donated to do"
???? says most students like the bookstore more than the school library.
"As much as book i see that, The book is new, if you want to buy them. ?????
you can and check operation in a period of time.
Also the library is maybe big, it's quiet place, it thinks like more social area bookstore than the library ????
order last week and high light the book that we can find it.
?????????
?????????
if the book sale well, we are talking about reducing the price and then can having the sales"
language teachers, ???? and ????, work together to create the bookstore.
they receive the gram from school wide and organization to help school set up bookstore.
Having such resource of school wide succeess is a valuable tool for improving her student literacy
"we need to get in the hand of our kids, our population is very low, so as the economics,
and a lot of litina family,so they don't have strong literature or literacy background from the family"
-------------------WORD-------------------
-------------------WORD-------------------
offerable
tina family
-------------------WORD-------------------
a city and port in
It is a very beautiful city,
built on hills next to a bay (=an area of sea that curves inwards towards the land)
on the
where many people live whose families originally came from
the
The city is close to the
and fire of 1906.
hangout [countable
a place someone likes to go to often:
eg. The bar is a favourite hangout for students.
literacy [uncountable]
the state of being able to read and write [≠ illiteracy; ? numeracy]:
eg. a new adult literacy campaign
26.5.08
Student-Run Bookstore 20080526
has been very low for the past seven years
to improve students english skill and general literacy
two teachers help to set up a bookstore inside the school
the school provide every variety and interesting books and offerable prices
and and opportunity for students to run it by themselves.
Seven degree "Rigina" is one of dozen students that help to run bookstore.
they rotate the assignment, reader, ????, cashiers.
they make sure the student get the book they like to read.
"if people wanna hold books, you write it down, and then you hold this book
either for after school or next week."
Price is offortable, ranging from 2 to 3 dollars a book.
Since it opened two months ago,bob?? says the bookstore school has become favorite place for student to hang out.
"My friends and my classmates, they really like the bookstore, because they could read book in the bookstore,
They also could do something during lunch ???????"
rare ?????
Most students like the bookstore more than the school library.
"The book is new, if you want to buy it. ?????
you can check operation in a period of time.
Also the library is big, it's quiet place, it thinks like a social area ??????
and high light the book that we can find it.
if the book sale well, we will talk about reducing the price and then having sales"
???? treasure ?????
work together to create the bookstore.
they receive the gram from school wide and organization to help set up bookstore.
Having such resource the succeed bookstore is a valuable tool to improve student's literacy
"we need to get the books in the hand ??from the kid, our population is very low,
and so as the economics, a lot of litina family???
so they don't have strong literature or literacy background from the family"
-------------------WORD-------------------
-------------------WORD-------------------
offerable
tina family
-------------------WORD-------------------
San Francisco
a city and port in California, US.
It is a very beautiful city,
built on hills next to a bay (=an area of sea that curves inwards towards the land)
on the Pacific Ocean. Its famous areas include Chinatown,
where many people live whose families originally came from China,
the Golden Gate Bridge, and the prison island of Alcatraz.
The city is close to the San Andreas fault, and was almost destroyed by the great earthquake
and fire of 1906.
hangout [countable
a place someone likes to go to often:
eg. The bar is a favourite hangout for students.
literacy [uncountable]
the state of being able to read and write [≠ illiteracy; ? numeracy]:
eg. a new adult literacy campaign
25.5.08
Student-Run Bookstore 20080525
has very low in seven year
to improve students english skill and general literacy
two teachers help to set up bookstore inside the school
the school provide every vriaty interesting books and
oppotunity to run it by students themselves.
??? Riginal is one of dozen students that run this store.
????
they make sure the student get the book they like to read
"if people wanna hold books, you write it down, and you hold this book
either after school or next week."
Price is offortable,
Bu??? says the bookstore school is favorite place for student to hang out.
"My friend and my classmate really like the bookstore, because they could read in the bookstore,
They even do something over the lunch"
Most students like the bookstore more than the school libary.
"The book is new, if you want to buy it. social area....
we are talking about reducing the price"
work together to creat the bookstore.
is a valuable tool to improve student's literacy
"they don't have literature or literacy background from the family"
-------------------WORD-------------------
-------------------WORD-------------------
-------------------WORD-------------------
San Francisco
a city and port in California, US.
It is a very beautiful city,
built on hills next to a bay (=an area of sea that curves inwards towards the land)
on the Pacific Ocean. Its famous areas include Chinatown,
where many people live whose families originally came from China,
the Golden Gate Bridge, and the prison island of Alcatraz.
The city is close to the San Andreas fault, and was almost destroyed by the great earthquake
and fire of 1906.
hangout [countable
a place someone likes to go to often:
eg. The bar is a favourite hangout for students.
literacy [uncountable]
the state of being able to read and write [≠ illiteracy; ? numeracy]:
eg. a new adult literacy campaign
23.5.08
20080523 2 MBA01a
i just say a few word of the ?????
and the high light of me will be getting your question in a few minutes.
i wanna talk about what is on your mind
i urg you to thought ??? and it's more fun for you if you put a little speech ????
you can ask me by anything except last ?????
couch meeting
our goal
i would like to talk about
1 minute about your future
you all got the enery
mission
most of you will suceed and leading your experty
enternat suceed
free
hire
integrity, intellegent, energy
kill all
we really talk about the question
think about this question
to buy 10% of your classmate
rich
i give you an hour to think about it
i give you an IQ test.
quality effect
i will say
i will to be the person that is generous and honest
you will right down the admire quality in the class
you think about the person that is really
all this quality
look that.....
that's why i don't involve technology
--------------------------------------------------------------------------------
sean say:
i will stop MBA listening learning here. This material is not suitable for me to do learning tracing.
i know the main idea about what he talks about, but i can't write them down, there are too much words.
i will find another mp3 file, that is shortter and the voice is more clear.
20080522-1 MBA01a
a high light
in your mind
more fun for you
last week
better
i would like to talk about
about your future
mission
most of you will succeed in your experty
free
hire
integrity, intelligent, energy
think about this question
to buy 10% of your classmate
give you an hour to think about it
quality effect
generous and honest
admire in the class
you think about the person that is really
that's why i don't invest technology
15.5.08
COURSE TIP 20080515
Course Tip
1. You Forgot, Because use memory skill.
So, please do not use memory skill for learning English.
2. Our brain Like Short Stimulus.
Short stimulus help us learning. Using 5 mins benefit help you saving time and learning English more efficiently.
3. What you can do when you are listening English material ?
a Write down what you heard.
b Listen Only
c Listen and speak it out instantly.
Home Work
1. Search topic that is about meeting, conference, convention.
2. Presume you were a chairman of one specific conference, how will you introduce this meeting? Write it down and record your voice.
3. Presume you were the speaker of this conference, what will you talk about? Write is down and record your voice.
4. Show your English Learning Trajectory on your blog.
5. Evaluation. Now, we are in the middle of this course. Please write down your evaluation about this course. About the learning English, what is different in this course ? Do you have any recommendation ? What is really good for you ?
Good Web Site
BMW blog
Taiwan News Online
http://www.etaiwannews.com/etn/index_en.php
14.5.08
Sandwich Learning
record your voice
Layer2
record the correct pronunciation
Layer3
record your voice again and repeat listen layer 1,2,3.
6.5.08
Audi aims to produce electric car within ten years
Although Audi isn't aiming to beat Chevrolet to the punch with an electric whip, it does plan on joining the party a bit further down the road -- according to company bigwig Rupert Stadler, that is. Based on an interview with Germany's Welt am Sonntag, Mr. Stadler noted that he expected diesel and battery technology to dominate within five to ten years, and he made mention that "by then, [Audi] would offer cars without exhaust emissions." Curiously enough, he also stated that "electric cars offer opportunities, which [the company has] already seized on," but alas, he didn't elaborate beyond that. Just to confirm, we've got you, me and a whisper-quiet ride in five- to ten-years? It's a date.[Via News]
3.5.08
Venturi's Eclectic solar / wind-powered car

by Darren Murph, posted Sep 30th 2006 at 6:15PM
Forget biodiesel and fuel cell-powered vehicles, how about a whip that doesn't require any fuel whatsoever? The Venturi Eclectic, touted as an "autonomous energy vehicle," gets its charge from wind gusts and 8.2 square feet of solar cells atop its roof. The four-person ride boasts a 22-horsepower purely electric engine, is powered by liquid-cooled NiMH batteries, and can reach a (yawn-inducing) top-end speed of nearly
[Via MobileMag]

