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GUIDE TO TECHNICAL PAPER WRITING EPH7112 Research Methodology CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. The Writing Process Flow Research Planning: K Chart Paper Writing: The Philosophy Contents of a Paper Constructing the Title Writing the Abstract Writing the Introduction Writing the Main Body Writing the Conclusion Conclusion 1. THE WRITING PROCESS FLOW Research Planning Obtaining results Organizing results 4. Planning for publication 5. Writing the title 6. Writing the abstract 7. Writing the introduction 8. Writing the main contents Theory Simulation/ Experiment Results and Discussion 9. Writing the conclusion 10. Pre-submission reviewing and editing 11. Submitting 12. Correcting 1. 2. 3. 2. RESEARCH PLANNING Macro – level planning : Gantt Chart Micro – level planning: K-Chart GENERAL TITLE Factors Influencing the Performance of Motor Vehicles Vehicles SYSTEM Sub Issues 1: App. based Sub Issues 2: Types based Air Land Motorcycles Sub Issues 3: Types based Cars Mini ELEMENTS Sea Trucks Sedan Engine Vans Wagon Body Tire METHODOLOGIES Theory Experiment Lab. Tests Lab. prototype Meas. Techn.1 RESULTS: Performance Parameters Design Parameters Commercial prototype Meas. Techn.3 Acceleration Pressure Survey Field Tests Eng. prototype Meas. Techn.2 Simulation Tire Height Speed Tire Width Fuel consumption Tire Pressure Tire Width 3. PAPER WRITING: THE PHILOSOPHY A paper contains a report on (new) findings and/or solutions. The purpose of the writeup is to convince the reader that your findings/solutions are important and better (than the existing solutions). The write-up describes What you are doing, What problems you want to solve/reduce, Why is it important, What have you achieved, How you achieved it, and How much better is it? IN SHORT…. State your claims clearly, Support and prove your claims beyond doubts 4. CONTENTS OF A PAPER 1. 2. 3. 4. Title Abstract Introduction Main Body 1. Theory 2. Simulation/Experimental Design 3. Results and Discussion 5. 6. 7. Conclusion References Other information: Authors, Acknowledgements, Index IN OTHER WORDS… A paper contains: Three Summaries, An Introduction, The Actual Works and Findings, A list of References 5. CONSTRUCTING THE TITLE (1ST SUMMARY) A title should indicate: The systems you are working on The problems you are solving Your achievements Your methodology State each point in one or two words SAMPLE TITLES A widely tunable hybrid brillouin-erbium ber laser (BEFL) System Mohamad K. Abdullah, Suhairi Shaharudin, Mohd Adzir Mahdi, and Rosdisham Endut Stability Robustness Analysis of Multiple Time- Delayed Systems Using “Building Block” Concept Hassan Fazelinia, Rifat Sipahi, Nejat Olgac Broad Beamwidth and Cross Polarization Free Dipole Antennas With Reactive Loaded Monopoles Kazushi Nishizawa, Hiroaki Miyashita, Shigeru Makino, Kunio Sawaya A New Family of Optical Code Sequences for Spectral-AmplitudeCoding Optical CDMA Systems S. A. Aljunid, M. Ismail, A. R. Ramli, Borhanuddin M. Ali, and Mohamad Khazani Abdullah Broadband Dielectric Resonator Antenna With Metal Coating Tze-Hsuan Chang, Jean-Fu Kiang A Synchronous Digital Hierachy Based Dynamic Error Correction Technique For Wavelength Division Multiplexing Networks CL Cheah, BM Ali, MA Mahdi, MK Abdullah 6. WRITING THE ABSTRACT (2ND SUMMARY) An abstract elaborates the same items as indicated by the Title: The systems you are working on The problems you are solving Your achievements, Your methodology Elaborate each point in 1 or 2 sentences SAMPLE ABSTRACT 1 We experimentally demonstrate a simple method for generating a multiwavelength Brillouin comb by utilizing a linear cavity of hybrid Brillouin– erbium fiber lasers (BEFLs). The optimization of Brillouin pump wavelength, power, and erbium gain played a significant role in determining the maximum number of Brillouin Stokes signals generated. Simultaneous and stable multiple-wavelength laser output of 22 lines with 10.88-GHz channel spacing has been obtained with good flatness. Various parameters such as 980-nm pump power, Brillouin pump wavelength, and Brillouin pump power that affect the performance of a multiwavelength BEFL system have been investigated. An analysis of the tuning range of the system is presented. SAMPLE ABSTRACT 2 A new code structure for spectral-amplitude-coding optical code-division multiple-access system based on double-weight (DW) code families is proposed. The DW code has a fixed weight of two. By using a mapping technique, codes that have a larger number of weights can be developed. Modified doubleweight (MDW) code is a DW code family variation that has variable weights of greater than two. The newly proposed code possesses ideal crosscorrelation properties and exists for every natural number. MDW code is shown here to provide a much better performance compared to Hadamard and modified frequency-hopping codes. 7. WRITING THE INTRODUCTION Introduction section should clearly describe: 1. The scope of area of research 2. Motivation factor: The importance of the area of research 3. Problem Statement: The specific problems you attempt to solve 4. Critical Review: Weaknesses of existing solutions 5. The achievements (main results) 6. The methodology (in brief) SAMPLE INTRODUCTION Optical spectrum code-division multiple-access (OSCDMA) is a multiplexing technique adapted from the successful implementation in wireless networks. In OSCDMA systems, each user is assigned with a sequence code that serves as its address. An optical code-division multiple-access (CDMA) user modulates its code (or address) with each data bit and asynchronously initiates transmission. Hence, this modifies its spectrum appearance, in a way recognizable only by the intended receiver. Otherwise, only noise-like bursts are observed [1],[2].The advantages of OSCDMA technique over other multiplexing techniques such as time-division multiple-access and frequency-division multiple-access are numerous [3],[8].Many codes have been proposed for OSCDMA such as optical orthogonal codes (OOCs) [4],prime codes, and modified frequency-hopping (MFH) codes [5].However, these codes suffer from various limitations one way or another. The codes’ constructions are either complicated (e.g., OOC and MFH codes), the cross-correlation are not ideal (e.g., Hadamard and Prime codes), or the code length is too long (e.g., OOC and Prime code). Long code lengths are considered disadvantageous in its implementation since either very wide band sources or very narrow filter bandwidths are required. Table I shows the code length required by the different codes to support only 30 users. For example, if the chip width (filter bandwidth) of 0.5 nm is used, the OOC code will require a spectrum width of 182 nm and prime code will require 480.5 nm, whereas, modified double weight (MDW) only requires 45 nm. Hadamard and MFH codes show shorter code lengths than that of MDW and this will be discussed further in more detail in this letter. It will be shown that the transmission performance of MDW codes is significantly better than that of Hadamard and MFH codes. This is achieved through theoretical calculation and software simulation. 8. THE MAIN BODY 1. 2. 3. THEORY METHODOLOGY: SIMULATION and/or EXPERIMENTAL DESIGNS RESULTS AND DISCUSSIONS WRITING THE THEORY Compulsory if your results involve modification of the existing theory/model, Optional otherwise Provide the main equations relating to the parameters you are presenting Describe how you have modified/improved the equations suiting to your design Show the derivation sufficiently WRITING THE SIMULATION/EXPERIMENTAL DESIGN (SET-UP) Describe how the design works i.e the working principle of the design Describe the components used especially the important ones Describe how the design is different from others (existing ones) Highlight the design advantages i.e in terms of simplicity, cost etc. Provide the specification of the system design/set-up in running texts or in tabular forms. Describe the assumptions made (sometimes, certain devices are used to simulate real environments) WRITING THE RESULTS AND DISCUSSIONS Present and analyze using: Characterization curves / analysis Comparative curves/ analysis Optimization curves/ analysis Two angles of analyses: 1. Analysis of trend 2. Analysis of reason CONTINUE Justify if any of your results is inferior to others’ Highlight your better results Explain why and how the better results are achieved Relate the explanation to the theory Substantiate every claim (conclusive statements) made through the results and/ or referencing 9except for the obvious, well known facts) 9. WRITING THE CONCLUSION (3RD SUMMARY) Elaborate the items in the Abstract a little further focusing on the results (achievements), and your advantages SAMPLE CONCLUSION 1 A thorough experimental analysis of the characteristics of a new technique for generating stable multiwavelength laser sources by using the linear cavity of a hybrid BEFL system has been presented. The requirement of internal feedback to generate cascaded Brillouin gain for multiplewavelength operation was achieved by the proposed linear cavity design. Experimental results were used extensively in discussing the effects of EDF pump power, Brillouin pump power, and Brillouin pump wavelength on the performance of the BEFL system. The optimization of these parameters is critical for achieving the maximum possible number of Stokes signals. The operation of 22 stable output laser lines with 0.088-nm 10.88-GHz spacing was obtained at a 980-nm pump power of 100 mW, a BP power of 1.1 mW, and a BP wavelength of 1557.5 nm that was at the peak of erbium gain. Lower cavity loss in the resonator and more available pump power from the 980-nm pump power could increase the number of lines to a specific maximum number. Further, it was found that the number of Stokes signals decreased as the BP increased in the highest region of erbium gain. The number of Stokes signals was proportional to the intensity of BP power outside this wavelength range, however. The incremental numbers of Stokes signals with increasing BP power has its limit, whereby gain suppression (at other wavelengths) will prevent the generation of more Stokes signals. The value of this limit depends on the location of the injected BP wavelength from the peak of erbium-doped fiber gain. We found that both the BP and the EDF pump powers affected the tuning range. At a fixed EDF pump power the Stokes signal can be tuned wider at higher BP power, whereas higher EDF pump power produced a smaller tuning range. SAMPLE CONCLUSION 2 In this letter, we have proposed a new family of optical code structure for amplitude-spectral encoding optical CDMA system. It has been shown that the MDW code performs better than the system encoded with Hadamard and MFH codes. The advantages of the proposed code are numerous, including easy and efficient code construction, simple encoder–decoder design, existence for every natural number , ideal cross-corre-lation , and high SNR. The simulated result of one of the four MDW coded carriers running at 10 Gb/s over a communicationstandard fiber shows a good quality transmission at the BER of 10-12. WRITING THE REFERENCES Ensure that all references are quoted in the text More references in Introduction, and Results and Discussion Normally, at least 5 references Avoid URL-sites Follow formats The later the better 10. CONCLUSION Writing technical papers require proper planning from early on It is important to understand the structure of a paper The main focus is on the Introduction and the Main Body Clarity in the research leads to easy paper writing Skills require practices