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How to be a successful PhD student By Cin-Ty Lee 5 Jan, 2011, Cin-Ty Lee, 2011,Knowledge, understanding & societal contribution,Ph. D. = philosophiae doctor, Cin-Ty Lee, 2011,Year 1 of graduate school,You know nothing You dont even know where you are going And the journey is steep, Cin-Ty Lee, 2011,Post-oral exams,You know something You have identified a problem you are working on Still, no end in sight, Cin-Ty Lee, 2011,After your experiments are done,You know a lot and youre wiser You can see the finish line You know what you have to write to finish, Cin-Ty Lee, 2011,Bottle of topics,Searching for questions, Cin-Ty Lee, 2011,Year 1 of graduate school,You know nothing You dont even know where you are going And the journey is steep, Cin-Ty Lee, 2011,Build your arsenal of knowledge -build foundation first, Cin-Ty Lee, 2011,Arsenal grows sand grain by sand grain, Cin-Ty Lee, 2011,Read Take classes Talk to colleagues Build a reference collection Make a scrapbook, Cin-Ty Lee, 2011,How do you identify a problem or ask a question?,Aack! I know a lot but all my knowledge is fragmentary!, Cin-Ty Lee, 2011,Understand Landscape of Knowledge -make connections Connections = hypothesis = question/problem, Cin-Ty Lee, 2011,Luck favors the prepared mind -Louis Pasteur,Begin with a connection -connections lead to other connections -ideas begin to florish and branch out -pick some research directions and follow them, Cin-Ty Lee, 2011,But you dont want to pick too many problems/questions - You will get lots of grass, but in the winter, they will all die back down, Cin-Ty Lee, 2011,Lady luck Li/Nb Blake dyers stuff,Build up your knowledge tree,What type of tree are you?, Cin-Ty Lee, 2011,The good and the bad of questions -bad question ill-defined, no answer, too difficult -good question well-posed leads to testable hypotheses difficulty is within reason, Cin-Ty Lee, 2011,Bad questions/problems for a PhD thesis,What is the origin of life? I want to solve global warming I want to end world hunger What is gravity? How do mountains form? Why do animals sleep? Dream? I want to cure cancer.,These are certainly worthy questions/goals, but they are unrealistic ways to begin as they are ill-posed, too ambitious, too vague, or simply have no answer for mortals like us. Start small., Cin-Ty Lee, 2011,Ill-posed question: Why do rivers meander?,Why shouldnt rivers meander?, Cin-Ty Lee, 2011,Better posed question What are the physical parameters that define whether a river meanders or flows straight?, Cin-Ty Lee, 2011,Who cares about this question?,Implications Where should I build my house, bridge, farm? How do I control flooding? How do I preserve river eco-systems? Taps our fundamental curiosity, Cin-Ty Lee, 2011,A good question should lead to a good hypothesis,In outer bend, the river is erosive. On inner bend, the river deposits sand., Cin-Ty Lee, 2011,Hypothesis: In outer bend, the river is erosive. On inner bend, the river deposits sand.,Water velocity,Shear stress,water velocities in river must straddle the critical line, Cin-Ty Lee, 2011,Vout,Vin,Vout Vin,Hypothesis: In outer bend, the river is erosive. On inner bend, the river deposits sand., Cin-Ty Lee, 2011,Hypothesis: In outer bend, the river is erosive. On inner bend, the river deposits sand.,Water velocity,Shear stress,No meander,Meanders!, Cin-Ty Lee, 2011,What have we done? Followed our curiosity with a question Made observations from nature Developed a testable hypothesis,Whats next? Testing the hypotheses by constructing an experiment, Cin-Ty Lee, 2011,What if our hypothesis is wrong?,Well, you wont know until you try to test it. If youre wrong, you still learned something. Better to have learned something than to have done nothing at all., Cin-Ty Lee, 2011,Dont be afraid to try things. Dont be afraid to make mistakes. Learn from your mistakes., Cin-Ty Lee, 2011,Post-oral exams,You know something You have identified a problem you are working on Still, no end in sight, Cin-Ty Lee, 2011,Thinking and executing your proposed study,Motivation why is the problem interesting? What is the hypothesis? How will you solve the problem? What did you find? What do your results mean? What is the next step?, Cin-Ty Lee, 2011,Progression of your science is nonlinear -be prepared to make mistakes -be prepared to reconsider your hypotheses, methods,REALITY,IDEAL,IDEAL,Motivation,Methods,Results,Discussion,Conclusions, Cin-Ty Lee, 2011,When is too much data enough? When do you stop?,?,?, Cin-Ty Lee, 2011,After your experiments are done,You know a lot and youre wiser You can see the finish line You know what you have to write to finish, Cin-Ty Lee, 2011,Outline of a paper,Introduction Motivation, context, background Hypotheses Methods Experimental setup Analytical techniques Numerical techniques 3. Results Data and observations 4. Discussion Comparison to other work Meaning of your observations 5. Conclusions/Summary Brief overview Outlook for future work, Cin-Ty Lee, 2011,Outline structures,GOOD,GOOD,-Flow should be unidirectional (like a river) -there should not be flashbacks!,Motivation,Methods,Results,Discussion,Conclusions, Cin-Ty Lee, 2011,Some more words of wisdom Sometimes, if youre excited, if you think its beautiful, then thats all that matters. Pursue your love., Cin-Ty Lee, 2011,Van Gogh painting,Dont forget about the big picture, Cin-Ty Lee, 2011,Pay attention to details & get the holistic experience,Balance work and play to be creative, Cin-Ty Lee, 2011,The going will be rough, Cin-Ty Lee, 2011,But its worth it! -you made it -you can do anything now!, Cin-Ty Lee, 2011,You now have your PhD. But its only the first of many more hills!,What is the orig
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