结果和讨论部分.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,结果和讨论部分,12/1/2024,1,怎么写好科技论文,结果与讨论,论文的重点所在！,实验结果：在实验中所测取的数据和所观察 到的现象的整理、总结（图、表）；,讨论或分析：从理论（机理）上对实验结果 加以解释，阐明自己的新发现或新见解。,这两部分可合在一起写，也可分开写。,12/1/2024,2,怎么写好科技论文,结果与讨论,写作要点,注意单元的单独性和连贯性：“起、承转、合”；,选取数据必须严肃认真、实事求是：数据一要准确、二要有代表性、三要有必要性、四要充分；对异常数据要反复验证，谨慎取舍！,描述现象要分清主次、抓住本质。,图、表要精心设计、制作，使人一目了然。,12/1/2024,3,怎么写好科技论文,结果与讨论,写作要点,分析问题必须以事实为基础，以理论为依据，不能主观、武断、想当然；,分析问题要有逻辑性，切中要害；,所有结论必须经得起同等条件下多次实验的重复考验（数据可重复性）；,基础理论、熟知现象等无须赘述；,应说明结果的可信性、再现性和误差。,12/1/2024,4,常见的问题,引用的公式或模型欠妥,推论不合逻辑/公式推导有误,实验数据不足以支持作者的观点,讨论重点不突出,观点表述不清楚、不明确,数学模拟论文缺少相应实验验证,怎么写好科技论文,结果与讨论,12/1/2024,5,The grammar and writing skill of discussion and conclusion part,begin by revisiting the most significant aspects of the research work,Modal verbs is important in the discussion section.,12/1/2024,6,Modal verbes,commonly used in science writing,for example:may,might,could,can,should,ought to,need to,have to and must,modify the truth value of a sentence.,12/1/2024,7,revisit the most significant aspects of the research work,revisiting the Introduction,revisiting the Methodology,revisiting the Results,12/1/2024,8,Which language should I use in the revisiting section?,use similar language or even similar sentences to the revisiting part.,provide an echo for the reader,12/1/2024,9,If I revisit the Methodology here,what should I do?,recall significant features of your method,Use the similiar language to the Methodology,Notice:,do not add new information,12/1/2024,10,What tense should I use to describe my methodology?,Past Simple Present SimplePresent Perfect,If you add a short Conclusion,the Present Perfect or Present Simple are common,12/1/2024,11,Example 1,In conclusion,we have experimentally investigated the operation of passively mode-locked fibre laser featuring a large core ytterbium doped microstructure fibre using saturable absorber mirrors with different modulation depths.Our results show that mode-locking could be achieved with a modulation depth of only 10%.,12/1/2024,12,However,for energy scaling saturable absorbers with strong nonlinearities are required.Indeed,as energy scaling is obtained by increasing the output coupling ratio,the high modulation depth is needed to insure stable mode-locking operation.We have thus demonstrated the generation of femtosecond pulses with more than 50 nJ energy from a fiber oscillator.,12/1/2024,13,Example 2,Our experimental results represent a first proof-of-principle demonstration of modelocked TDLs with sub-100-fs pulse duration.This was achieved with the broadband sesquioxide material Yb:LuScO3(22 nm of FWHM emission bandwidth)and optimized SESAM parameters.Although the output power level in this experiment is moderate,higher powers are feasible at these short pulse durations by using larger disks,increased mode areas on the gain medium and on the SESAM.Furthermore,12/1/2024,14,（Continued）,Example 2,designing SESAMs with similar fast recovery times and high modulation depths but larger saturation fluences,lower two-photon absorption effectsand higher damage thresholds 31 will support furtherpower scaling at these short pulse durations.We target power scaling of SESAM modelocked TDLs to the multi-100-W regime with sub-100-fs pulse durations.,12/1/2024,15,