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Theerayut Sueverachai

The simulation of NE555 integrated circuit for timer

Your abstract addresses a clearly defined well-developed theme. It's quite clear what you are proposing to do - what is not so clear is why you have chosen this particular topic, and in what ways your practical project (which carries most of the weighting) is going to illustrate EM principles. Issues to be considered here include:

  1. Have you chosen to simulate the NE555 because it is a particular good example of a device that illustrates rich dependencies and lends itself to 'what if?' exploration?
  2. Is simulating the NE555 unusually interesting where typical applications are concerned, and does/might an EM-based simulation have any virtues in this respect?
  3. Are there many/other existing simulations of the NE555?
  4. To what extent will the simulation you create be unusual, and in what respects do you expect it to demonstrate the merits (or even perhaps the limitations!) of EM?
  5. What special qualities will your simulation have other than the kind of qualities that we would expect of a traditional simulation?
  6. Is it the process of construction or the product that will be of interest from an EM perspective?

Without more specialist knowledge of your application, it's hard for me to know what kind of answers you will give to these questions. But bear in mind that the fact of implementing your simulator using JS-EDEN doesn't of itself mean that you are practising EM. Nor is implementing a simulation with a "good interface, good usability, and efficiency" significant except in so far as the application of EM principles may help to ensure you engineer these qualities. You state that:

"This application will be very useful and able to [be] applied to many applications."

but again we need to know why making a simulation based on an EM construal can be helpful here (a possible answer might be suggested by the Chris Roe's version of the digital watch - see - where the way in which the original digitalwatchFischer1999 simulation has been constructed is exploited both in adapting and contextualising Roe's personal mental model of his own watch). It is when you talk about "evaluating the output data" that you seem to be discussing issues that are most relevant to EM, as it is here that (crucially as far as the topicality of your application is concerned) you refer to "observables" and "dependencies".

You have cited some technical references on the NE555 - you should also include references to simulators if any exist. There are also two previous WEB-EM submissions on the theme of circuit simulation that it may be useful to look at. One (see the ELS project from WEB-EM-3) takes a very negative view of EDEN as an implementation tool (mainly because it is concerned with creating generic circuits, and involves much replication of components), the other (see Gunjan Gogia, WEB-EM-7) is more modest in scope and is concerned with basic education about circuits.

Your English is generally quite good, but can be improved in places. Here are some examples of phrases that need some attention - perhaps a good idea to make sure that your final submission has been reviewed by a native English speaker":

  • "the uses between two modes are different which is depended on the purpose of applications"
  • "it requires to meet the following terms in order to make a good application"
  • "This makes an user to ensure that the component is correctly selected."