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Energy-Efficient Timely Transportation of Heavy-Duty Trucks

This paper explores the energy-efficient timely transportation problem for heavy-duty trucks, aiming to minimize fuel consumption while meeting delivery deadlines. It proposes an FPTAS with an approximation ratio and complexity, as well as a heuristic that is optimal under certain conditions. Simulations show up to 17% fuel savings compared to existing algorithms.

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Energy-Efficient Timely Transportation of Heavy-Duty Trucks

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  1. 通信工程专业英语Technical English Writing专业英语写作 邓 磊 denglei@dgut.edu.cn https://leideng.github.io/communication-english/ (Some materials are from the Internet) 东莞理工学院 电子工程与智能化学院 2018.10.09/10

  2. Acknowledgement & Reading List • Style: Lessons in Clarity and Grace, Joseph M. Williams • https://www.amazon.com/Style-Lessons-Clarity-Grace-12th/dp/0134080416 • The Elements of Style, William Strunk Jr. • https://www.amazon.com/Elements-Style-William-Strunk-Jr/dp/194564401X • The Science of Scientific Writing, George D. Gopen and Judith A. Swan • http://www.jstor.org/stable/29774235 • Mayfield Electronic Handbook of Technical & Scientific Writing • http://web.mit.edu/course/21/21.guide/home.htm • Log of Comments on Writing, Soung Chang Liew • https://staff.ie.cuhk.edu.hk/~soung/LogWriting.pdf

  3. Outline • Writing timeline • How to write abstract • Ten rules for technical writing

  4. Writing Timeline

  5. A Writing Example: Truck Operation Lei Deng, Mohammad H. Hajiesmaili, Minghua Chen, and Haibo Zeng, “Energy-Efficient Timely Transportation of Long-Haul Heavy-Duty Trucks,” IEEE Transactions on Intelligent Transportation Systems (TITS), vol. 19, no. 7, pp. 2099-2113, July 2018.

  6. Planning: Preparing materials • Category 1: Present your own technical result • Of course, you need to have your own result first • Search and read related work • My truck example belongs to this category • Category 2: Summarize others’ technical results • Search and read materials on the topic • Technical books • Technical papers: IEEE, ACM, etc. • Internet • Others

  7. The Truck Example: Problem Statement • Objective: minimize the fuel consumption of travelling from to • Constraint: a hard deadline • Design Spaces: route planning and speed planning

  8. The Truck Example: Our Results 4. Show up to 17% fuel saving, as compared to fastest/shortest path algorithm, in simulations using US highway data 1. Show Energy-efficient timely transportation is NP-Complete 3. Propose a heuristic with complexity ; it is optimal under a condition 2. Propose an FPTAS with approximation ratio and complexity is the number of edges, is the number of nodes

  9. Organizing: Writing outline • Divide the paper into sections • Abstract • Introduction • Related Work • System Model • Problem Formulation • Main Results • Simulation • Conclusion • Reference • Appendix

  10. Organizing: Writing outline • Divide each section into paragraphs • Introduction Section • Background • Motivation • Contributions • Paper Organization

  11. Outline of The Truck Example • Abstract • Introduction • Related Work • Model and Problem Formulation • An FPTAS for PASO • A Fast Dual-based Heuristic • Performance Evaluation • Conclusion and Future Work • References

  12. Introduction Outline of The Truck Example • Heavy-duty trucks deliver most of goods and consume huge energy. It is important to reduce the energy consumption of heavy-duty trucks. • Two lines of work to reduce the energy consumption of trucks • Line #1: Design more fuel-efficient trucks • Line #2: Operate trucks more economically • Route planning: choose more fuel-efficient route/path • Speed planning: slow down the truck • However, slowing down the truck can increase the travel delay. Timely delivery is also critical to the truck operations. • We study the energy-efficient timely transportation problem for heavy-duty trucks. • Our contributions: • Propose the energy-efficient timely transportation problem and prove that the problem is NP-complete • Propose an FPTAS with approximation ratio and complexity • Propose a heuristic with complexity ; it is optimal under a condition • Show up to 17% fuel saving, as compared to fastest/shortest path algorithm, in simulations using US highway data

  13. Writing: Expanding According to the Outline • Expand each summarized sentence into a paragraph in the outline • Then you have the whole paper!

  14. The Truck Example • Heavy-duty trucks deliver most of goods and consume huge energy. It is important to reduce the energy consumption of heavy-duty trucks.

  15. The Truck Example • Two lines of work to reduce the energy consumption of trucks • Line #1: Design more fuel-efficient trucks • Line #2: Operate trucks more economically • Route planning: choose more fuel-efficient route/path • Speed planning: slow down the truck

  16. The Truck Example • However, slowing down the truck can increase the travel delay. Timely delivery is also critical to the truck operations.

  17. The Truck Example • We study the energy-efficient timely transportation problem for heavy-duty trucks.

  18. The Truck Example • Our contributions: • Propose the energy-efficient timely transportation problem and prove that the problem is NP-complete • Propose an FPTAS with approximation ratio and complexity • Propose a heuristic with complexity ; it is optimal under a condition • Show up to 17% fuel saving, as compared to fastest/shortest path algorithm, in simulations using US highway data

  19. Reviewing: Proof-reading the whole paper • Note: before the final reviewing, you may have many back-and-forth editing of planning/organizing/writing so as to fix the organization, logic, and contents. • In the final review/proof-reading, check • Spelling • Grammar • Punctuation • Reference format • Other parts what are not related to organization/logic/contents

  20. Proof-reading Tips • Print out the REAL paper rather than electronic one • Proof-reading paragraph by paragraph • Finish one paragraph in enough times until it has no problems and then go to next paragraph • Read out each word

  21. Importance of Title/Abstract/Introduction

  22. How to Write Abstract • An abstract must be a fully self-contained, capsule description of the paper.  • Parts of abstract include • Motivation: why do we care about the problem • Problem Statement: what’s the problem? • Approach: how do you solve the problem? • Results: what’s your results/answers to the problem?

  23. Abstract of The Truck Example

  24. Ten Rules for Technical Writing

  25. Rule 1: Search Before Using • Use search engines (Google, Yahoo, Bing, Baidu, etc) to see whether it is commonly used in English world

  26. Rule 2: Do not Join Independent Clauses by a Comma, but by a Semicolon

  27. Rule 3: Omit Needless Words

  28. Rule 4: Use Transitions • Time: before, after, during, while, until • Space: above, below, inside • Cause and Effect: because, since, as a result/consequence, consequently • Similarity: as, likewise, similarly, similar to • Contrast: although, however, on the other hand

  29. Rule 5: Prefer the Active Voice

  30. Rule 6: Express Co-ordinate Ideas in Similar Form

  31. Rule 7: Avoid Long Subject-Verb Distance

  32. Rule 8: Prefer Short Sentences

  33. Rule 9: One sentence focuses on one point; One paragraph focuses on one topic • If you follow the outline-driven writing procedure, one paragraph naturally focuses on one topic. • If you avoid too long sentences, one sentence is likely to focus on one point.

  34. Rule 10: Tense Consistence (Source:Internet)

  35. HW 1 Reminder • 英文写作作业1 • 题目:Report task of writings tasks of Unit 2 (课本第50页) • 字数限制:500-2000个单词 • 截止日期:2017-10-17, 23:59 (第7周周三) • 发送电子版到邮箱:denglei@dgut.edu.cn • 电子版格式: PDF • 电子版文件名: HW1_姓名_学号.pdf • 邮件主题:HW1_姓名_学号

  36. Thank You!

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