DSL - Science topic

Structured Query Language (SQL) is specifically designed for managing and manipulating data in relational database management systems (RDBMS). SQL's primary focus is on tasks such as querying, updating, and managing data, which makes it specialized in the domain of database management.

Dear all,

We are current doing a research which involves developing an internal DSL using metaprogramming in Ruby. It's not a clear topic to us and I would appreciate any good references/examples about that, please.

Thanks.

I am working on creating DSL models in DigSILENT software by taking single machine infinite bus bar connecting with simplified AVR. When I am calculating the initial condition its showing an error which shows that, "Some models could not be initialised. Please check the following models: dsl model-' Voltage Controller', and Output 'Efd' not initialised. But as per the mannual its showing that the Efd can be directly initialized by the powerfactory. How can I solve this issue, Please help me.

HI there

please help me regarding DSL models the powerfactory. I need a basic tutorial about the DSL model so, kindly send me literature or video links. Best regards M. Ismail Jamali Pakistan

I'm starting a research which aims to build Domain Specific Langauge (DSL) for users automation for smart home for example. Any suggestions about tools used to build such langauges, features that should be in these automations?

Thanks in advance..

Can anyone tell what the signal traveling speed in fiber optic and DSL cable?

e.g., Like how much time an electrical signal will take to reach around 290 to 500 km.

I am looking for a delay in the time caused by traveling through 300 to 500 km through any DSL or fiber optic cable or the communication line used by electrical utilities with the transmission line.

Hi Everyone

I Want to model Solar PV in Digsilent Simulation Language (DSL). My research is about Dynamic Voltage Stability. Now I am trying to model solar PV (maximum power point tracking) in (DSL). My problem is that I don't know how to write equations and variables in models.

If you have any DSL Files that you can share with me, please share it. Thank you in advance.

Hello All,

I am working on HVDC VSC converters in DIgSILENT power factory. I have developed the grid and the DSL models of generators, controls and the VSC converters. But, when I run the simulation, it says something on inner-loop iteration reached for some models. I want to know how to resolve this error in DIgSILENT power factory. I have asked this question in the customer portal, but it didn't help me much. They suggested me what I already knew and have tried. I can send the pfd file if required.

I appreciate your help.

Thank You

Anand Prakasha

This is the condition to be followed

From Computer workstation request for profile travels

Over the corporate local area network

To a modem( database server and is a mainframe computer) which uses DSL

Connects to the internet

Finally into the database server

QN: figure / table or elaborate how data or signals are converted to a different form.

Note: For each entry in the table, show where the conversion is taking place, the form of the incoming information, and the form of the outgoing information.

Dear,

I am assessing in which extent the complexity of current MDD-frameworks would be a reason to not do DSM-tool development with them. To assess this, I have made a tool and compared it with an existing tool developed in an older MDD-framework.

The existing tool was designed to make models for a GPL, namely EER. (In this case, we consider EER als a GPL and not a DSL).

So of course, I need to add a limitation to my research paper. For now, I have stated that using a GPL like EER allows me to compare with an existing tool. Other advantages are that there has been done a lot of research on EER, that it has a rather simpel metamodel and syntax, which allows me to focus more on the functionalities of the used MDD-framework. 

Would you agree with this limitation and explanation for why? If not, why not? 

Thank you very much.

Kind regards,

Sonny Selhorst

Dear,

I am confused as to whether Enhanced Entity Relationship is a GPL or DSL. My thesis promotor insists that it is a GPL, while others have said that it's a DSL.

Why would you consider it to be a GPL or a DSL? And are there any papers that I could use to prove the statement in my thesis?

Thank you very much for your help.

Kind regards,

Sonny

Given the limited resources in terms of memory and computing capacities of embedded systems (like microcontroller based), would it be worthwhile to deploy a virtual machine in ? In effect, it will have to interpret the programs corresponding to the specific applications written in its input language (DSL).

If so, what can be the interests ?

Some references would help me

Thank you

These restrictions have many settings and writing them into relational tables is very inconvenient. I would like to describe these restrictions in a more flexible way, by coming up with a DSL for them. If you have come across anything similar, please let me know.

I have been trying to isolate adult mice Sertoli cells on DSL coated plates, but the yield is very low !! the mice age is 11 months.

It used to work well with young Sertoli cells.

any advices ?

We use the Z notation to formalize a DSL. We find it difficult to validate the specification. References with such validation?

Hi,

i am looking for a Software Metric to analyse the Maintainability of the code written in a model driven domain-specific language.

I read a few critical points about the MI from Paul Oman. (It's not adapted for OO-languages)

Would it be a good idea to use it for a non-OO dsl?

When using channel measurements on simulation, it is common to have impulse responses with a ringing effect due to truncation in the frequency domain (due to  the measurement itself). This ringing in the impulse response, however, induces bit detection errors that don't normally occur with regular impulse responses (given the bit loading algorithm guarantees a low BER). My question is: where in the DMT chain such an impulse response would be problematic, as far as simulation is concerned?

EDIT: I previously called these impulse responses with ringing as non-causal. However, non-causal in this context is not strictly non-causal by definition (an impulse response in which a given sample depends on future samples), but an impulse response in which the amplitude goes first negative before reaching the positive peak, showing energy before being excited. This is a terminology that commonly appears for channel models, in which the RCLG parameters can be causal or non-causal (depending on the model). To avoid confusion, I decided to edit and remove this term. The point is, the impulse response I`m using has this ringing effect, an oscillation before the peak. I believe the fact that this can cause detection errors is a known issue and that's why I`m asking it here. My goal is to understand why I can't use such an impulse response for time-domain simulations, or, in case I can, what type of pre-processing (e.g. freq-domain windowing) should I apply.

Bit loading seems to be correct, ISI/ICI seems to be controlled, transmission PSDs are apparently correct, detection implementation is correct and assumes perfect channel knowledge. I don't immediately see where it is problematic. I also cannot explain why the bit errors occur at the lower frequencies.

EDIT2: Problem solved. The impulse responses had small but non-negligible ringing in its last samples, close the FFT size. Hence, when I was truncating the impulse responses to 99% of the energy, they were continuing with a length close to the FFT size. This was impractical for the cyclic prefix to cover enough dispersion such that ISI could be controlled. Hence, what was indeed constraining me was ISI/ICI, in contrast to what I said before. Ultimately, I took the ISI/ICI PSD into account in the bit loading computation and solved the problem. I won't delete the question because it can be helpful for someone. 

Best regards to everyone who tried to help.

I have been using this blog for studying OFDM and I understand it to some extent [link] berndporr.me.uk/teaching/digicomms right at the end he talks about adding more than 1 pilot tone and oversampling at 48Khz, could you please help me understand that ?

I want to measure the power consumed in OAN. Suppose I want to compare two methods of power saving for ONU. The first one is cyclic sleep mode and another is the Adaptive Link Rate (ALR) control method. How and with which tool can I do this?

I know you multiply by exp(j*2*pi*normalized_offset) but how do you show how the adjacent subcarrier affects the current subcarrier. Isn't there a way to add a component of adjacent subcarrier to current carrier to show inter-carrier-interference?