engineering

Weng Cheng-yi

Weng Cheng-yi is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Weng Cheng-yi rather than just read about it. In short: Weng Cheng-yi (Chinese: 翁政義; pinyin: Wēng Zhèngyì; Pe̍h-ōe-jī: Ong Chèng-gī) is a Taiwanese mechanical engineer. Education and career Weng earned a doctorate in mechanical engineering from the University of Rochester.

Key takeaways

Weng Cheng-yi belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Weng Cheng-yi to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Weng Cheng-yi from memory before moving on to harder problems.

Reference excerpt

Weng Cheng-yi (Chinese: 翁政義; pinyin: Wēng Zhèngyì; Pe̍h-ōe-jī: Ong Chèng-gī) is a Taiwanese mechanical engineer.

Education and career Weng earned a doctorate in mechanical engineering from the University of Rochester. He joined the National Cheng Kung University faculty in 1980. Weng became president of NCKU in 1997. He was the inaugural chairman of the Aviation Safety Council, serving from 25 May 1998 to 19 May 2000. He was minister of the National Science Council from 20 May 2000 to 6 March 2001. Days after taking office, Weng was criticized by members of the Legislative Yuan for being unaware of council proceedings. An anonymous legislator accused Weng of plagiarism in June 2000. Later that month, health department director Lee Ming-liang panned several government officials for smoking, including Weng. As chair of the National Science Council, Weng was cautious of scientific exchanges with China, choosing to work with the Japanese government on a high-energy synchrotron radiation beamline installed in Hyogo Prefecture. Additionally, Weng commented on earthquake response and recovery, and attended the Industry Strategy Symposium 2000. Weng worked to establish the Tainan Science-based Industrial Park throughout his tenure. He was replaced by Wei Che-ho in March 2001, after the industrial park initiative proved unsuccessful. Weng later served as chairman of the Industrial Technology Research Institute. He returned to the Aviation Safety Council as acting chairman in 2005.

References

Worked examples

Example 1 — a first encounter with Weng Cheng-yi

Start with the simplest possible case. Write down what Weng Cheng-yi claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Weng Cheng-yi before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Weng Cheng-yi ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Weng Cheng-yi

In research: Weng Cheng-yi appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Weng Cheng-yi in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Weng Cheng-yi is common in secondary-school and first-year university syllabi. It links to neighbouring topics 20th-century Taiwanese engineers, 20th-century mechanical engineers, 21st-century Taiwanese engineers, so understanding it makes those chapters shorter.
In everyday life: Look for Weng Cheng-yi outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Weng Cheng-yi in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Weng Cheng-yi means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Weng Cheng-yi out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Weng Cheng-yi in simple terms?

Weng Cheng-yi (Chinese: 翁政義; pinyin: Wēng Zhèngyì; Pe̍h-ōe-jī: Ong Chèng-gī) is a Taiwanese mechanical engineer. Education and career Weng earned a doctorate in mechanical engineering from the University of Rochester.

Why does Weng Cheng-yi matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Weng Cheng-yi?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Weng Cheng-yi.