Arena - Science topic

Thank you Adnan Majeed for your reply.

Do you have another example or a model with vba?

Adnan Majeed thanks

Clausewitzian thought on the trinity model of Governance-Military-Population has evolved. Earlier the economy was the preserve of the state. The MNCs have added to the space of non-state actors, and they are influencing legislation across nations. Armed non-state actors introduced by the leading powers to contest each other to maintain strategic stability have added to the threat angle. The states will have to brace up with the non-state actor activities, which are primarily happening in the economic space. Hence, weaponising the economic tools will find favour with the governments and the non-state actors. The hard power will be used as tool of deterrence. Wealth destruction will be the new theme.

I think you need to use an Assign Module and define an attribute for each supplier. You may refer to the textbook "Simulation with Arena" by David Kelton in Chapter five and Six.

Thank you, I really appreciate both thew questions and the answer. They are both important

May be helpful for your work:

Dear all, this topic is the subject of continuous debate and causing constant anxiety about the fate of NPs. It is also the matter of discussion here at RG in many threads. Please have a look at the following documents. My Regards

hi,

the arriving entity seizes some number of units. of a resource, then is delayed for a time, and then releases the. resource. Delay: the arriving entity is simply delayed for some time and no. resource is required.

refer this link:

Best wishes..

Emma Kuttler you can enter the distrubution of the group size at the "entities per arrival" input field in the create module. This way it will create so many entities at each time an arrival occurs. If you need more help regarding modeling in Arena I can help you out.

Kind regards,

Hi Mikael,

If you still need help with simulation modeling in Arena. You can contact directly here or in the link below.

Dear Louie Giray,

Yes. It is considered mixed method when you use this combination. The point here is what kind of mixed method design and what are the function of each question.

I will offer a chapter that I think is one of the best to describe it. I don't know the authors personally, but they are very very good.

Creswell, J. W., & Clark, V. L. P. (2010). Choosing a mixed methods design. In J. W. Creswell & V. L. P. Clark (Eds.), Designing and conducting mixed methods research (2nd ed., pp. 53–106). Sage. https://doi.org/1412927927

Hi, I think you should use the decide function to select N-way by condition and write expressions like NQ(Registration.Queue)<=NQ(Registration2.Queue), the NQ() means the number of people in the queue, and the (Registration.Queue) means the queue of the registration service desk. Hope this will be helpful.

Dear Dr. Elena Tarkhanova ,

If we refer to the political trends of now, I consider that the pseudo-multiplication of conflicts due to the Covid-19 effect are being treated in a more ethereal and apparently divided way without being so. We can assume for the moment that we no longer live in a "Bipolar World" or "Unipolar", but we are not in a "Multipolar World" either, we are in a somewhat confused and lethargic transitional situation.

Well yeah it was processed but it did not go out from the module.

okey thankyou, I will check the book. Have a good day!

No, the academic arena is not safe for marginalized academics or marginalized voices. There are many subtle and not-so-subtle ways marginalized voices are oppressed, suppressed, and contained. As the example of Nikole Hannah-Jones demonstrates, either you contain yourself within the boundaries of acceptable cannon, or you don't get promoted or tenure.

When I was finishing up my PhD, one of my advisors told me that if I ever wanted a career I need to "toe the line" . I'm a member of a privileged demographic and social class. I can imagine what those without my privilege have experienced.

Dear Esraa Zakaria,

The lack of movement may be interpreted in several ways; however, from the work of Aubele et al. (2008), the three principal behaviors observed during open field test and object recognition tasks are categorized as ambulating, rearing or remaining stationary.

As for the novel object recognition test, from Antunes & Biala (2012), “In several studies, when animals showed lack of exploration activity, they were excluded from the experiment (Bilsland et al. 2008; Clarke et al. 2010; Ennaceur and Delacour 1988; Reger et al. 2009; Taglialatela et al. 2009).”

Although many analysts will say that remarkable progress has been made in emancipation and the inclusion of women in all spheres of society (international politics, academia) is sufficient to look at the reality that says quite the opposite: there is much left geographical areas where the woman is in a subordinate position, endangered, and even exposed to completely inhumane treatment. The problem is that no society nurtures traditional and patriarchal values ​​that diminish the woman's equal position, so the woman remains forever trapped in the family, private sphere, designated for household chores and child care. A woman is seen as a "service provider" of husband and children and as the primary caregiver. A logical question arises: who can and by what means to help a woman turn the situation in society to her advantage? As part of this complex problem, we can consider the activities of individuals, non - governmental sector, actions of neo-feminist movements, civic activities and initiatives, and state strategies and laws. The focus is on: creating space for the application of respect for human women 's rights and the emancipation of women in society.

Yeah @Alyson Da Luz Pereira Rodrigues, I didn't know about that before asking this question. I have sorted it already. Thanks a lot :)

Nice informative details

Also this thesis:

A Simulation Based Approach for Determining Maintenance Strategies

By: Vasanth Murthi

Did you find any way to connect these two programs?

If you use blocks (template panel) you could use two flows of entities, using "SIGNAL" and "WAIT" for coordinating the two. Then, one of the two flows can be disposed if you don't need it anymore (for instance, in modeling assembly processes).

The book I referenced has hundreds of downloadable examples on numerical methods using VBA for Excel. These should be usable in your software with no changes.

In order to switch on and off resources you must use schedules. For the priority of

entities you can use queues (as a block) and then you can switch to priority queue rule. I hope this helps.

Jaime Andres Cardona Arias ,

this is the entire problem:

There are two different queues, in queue 1 there is only order type 1, and in queue 2 there is only order type 2. Depending on the type of order, either order type 1 or order type 2 has priority

After order type 1 is processed it is disposed of, and order type 2 goes to machine 2 (process2)

But there is also another condition. Machine 2 is only turned on when there are 3 orders in the queue in front of it. If there are less than 3 orders in the queue in front of it, machine 2 will be turned off.

How can i model this?

Thanks in advance!

Thank you for sharing this Question

Thank you Iyo

Unfortunately you are repeating what you said before. Therefore, for me at least, I am still in the dark

One more: What are entities?

you can use sets

Hi Luka Gantar

have you heard about the whisker-dependent texture novel object recognition test (tNORT)?

This is a test that evaluates the ability of a mouse to discriminate two objects basing solely on texture and whisker interactions.

I used it with my mice with satisfactory results. As textured objects, I used sandpaper wrapped cylinder.

Here is the reference:

You can think to modify this protocol with one object only, according to your needs.

Additionally, if you are planning to evaluate behavioural responses to whisker stimulation you can think about the whisker nuisance test!

Here is a reference:

Hope this helps,

Luigi.

Dear Kinda Alsharayri,

I suggest you to see links and attached file on Subject.

Best regards

From a policy perspective, understanding thst will helo us plan or maybe redesign 3D simulation.the re opening of businesses it can be generally researches how people make decisiins about transportatio in order to understand who is more likely to respect guidelines what the risk perception are in public spaces and how can create incentives for individual to sustai social distrancing ao help guide decisions

you can use a decide block to direct surplus entities to a hold block

Hi Ben --

You can use the process analyzer to compare a variety of scenarios against a few response variables and could gain some more insight.

Evance Moyo You should be able to use a separate module and select duplicate original and reproduce #duplicates. If you provide some more details, I can provide a detailed answer.

If the context is the contribution to the (academic) literature, e.g. journals, proceedings, etc, then the contribution can be providing a new or better approach/ solution to an under-researched problem/ research context. People usually justify their claim (contribution to the gap in the literature) by presenting the state of the art literature review on the problem and make a claim that their proposed approach indeed has never been investigated before or is better than any previous attempt. The implementation of the approach can use any (simulation) tool (e.g. arena, pro-model, any-logic, etc.). Hopefully, it's useful.

Thanks for your help !

It helped me. Also i think i found another practical way on ARENA. Trying both of the. Thank you again.

The copyright directive (Directive (EU) 2019/790) allows EU nations to give various exceptions in the national laws. Research is one of the allowed exceptions. How this is implemented, if at all, in national laws differs.

Data mining exceotion might be also relevant to your case https://mediawrites.law/the-eu-dsm-directive-new-copyright-exception-for-text-and-data-mining/

(I am not a laweyr but just someone who research games and I have needed to address some of the questions.)

i have exactly the same problems.

Can you elaborate more about you mathematical model?

Following

Hi, I am new to Arena, so had a basic question. Whenever Hold module is triggered then only one entity is released , so how can one modify it to release all the entities?

Yes, of course. Some cases have been found.

I will recommend to read this article: How to organize an online conference

You must define the distribution of good and poor cells first. I suspect that the distribution is far from normal, with many cells being 100%, then many at 90%, fewer at 80% and so on. Then you must match this distribution with your own pseudo random generator in order to get the results that you want. In your case, try expanding the range of your simulated distribution to say, 150% and 40%, then truncate - anything over 100% and anything less than 60% is disregarded.

Hello my friend,

I have a problem with the production line that I simulate for my thesis. As I mentioned above, Rolls come in and then small devices are created. The problem with the production line is that the probability of these devices being good ranges between 60-100%. I used the decide module through the 2-way by chance and I built an expression. The expression that I used, it was the Normal Distribution but it did not help me because I did get the results I want. I don't know if it is problem of the Arena Simulation or if I didn't write it right.

Please answer me when you can.

Try to give an attribute for every supplier. For example supplier a has suppliernumber1 , supplier b has suppliernumber 2.

Create a variable named cost and keep the cost informations in the variable repspectively. First index of cost variable must define first suppliers cost.

I know, but is there a way to dispose all entities that are in the queues at the end of simulation? and as a result to have number in equal to number out.

I think the condition is only evaluated at an event (discrete event simulation). So you could try to have an event at 9 o'clock. Perhaps you create an entity at 9 and dispose it. You can do the same with sending out a signal at 9.

Nolberto Munier That is exactly the problem. And yes the demand is stochastic. Thank you for your help i will look into the article!

Abdullah Althunayyan its my pleasure

mathematical relations

Hi Annika,

are you talking about these parallel Queues as explained here ( http://web.iitd.ac.in/~nomesh/MEL770/kelton.pdf )?

It is mentioned in chapter 8.6.2

B.R.,

Ari

There is no need to simulate. You can use MS Excel simply.

amphi + theatre = two theatres, theatre on two sides :)

Md ARIF Hossain If you want to improve the color during cooking you should know that the rice contains starch (a carbohydrate) and asparaganin (an amino acid) that when treated at high temperatures produce a reaction called maillard reaction, it is characteristic by the browning of the food, an easy way to avoid this process is with a vacuum cooker because at higher pressure lower cooking temperature for cooking and therefore the yellowish color will disappear. You have to keep in mind that most of the products that make this reaction synthesize acrylamide which is a genotoxic product. I hope it helps you.

Dear Srikaran,

I suggest you to see links and attached file on topic.

Chapter 3 -- A Guided Tour Through Arena

https://staff.aub.edu.lb/~bm05/INDE504/Labs/Lab_2.pdf

Example Simulation Models

www.uh.edu/~lcr3600/simulation/models.html

8.13 Changing Resource Capacity - Simulation using arena

minitorn.tlu.ee/~jaagup/uk/ds/chp8/c8-12.htm

Lean Tips & Tricks - Arena Simulation

https://www.arenasimulation.com/blog/post/lean-tips-tricks

modeling supply chain with simulation - Semantic Scholar

https://pdfs.semanticscholar.org/.../f044acd05c928b1eb3351c2f6b...

Best regards

Dear Ayman,

You have a complete survey of INFORMS here https://www.informs.org/ORMS-Today/OR-MS-Today-Software-Surveys/Simulation-Software-Survey

In short, use Anylogic for the development of complex logic rules. For instance, to develop advanced dispatching rules or local search optimization algorithms. Use SIMIO to develop models having intermediate complexity functions. The learning curve of Anylogic tends to higher than SIMIO. A complete simulation survey can be found here https://www.informs.org/ORMS-Today/OR-MS-Today-Software-Surveys/Simulation-Software-Survey

Hello,

I have previously worked with the simulation software ARENA, and regarding your question, here is my answer :

1/ First, convert this list of times to a schedule : start by converting the list of times ( hours ) to ( day and hours ), like for exemple : the first 2 entries ( 2 hours & 4 hours ) would be ( day 1 hour 2 & day 1 hour 4 ), the next entry ( 28,73 hours ) would be ( day 2 hour 4 ) and so on ... The last entry ( 338,48 hours ) would become ( 14 days ).

2/ Next, create an actual schedule in ARENA that has a duration of 14 days (since that's your schedule period), and at the specific times that you got from step 1/, put a value of 1 in the schedule and 0 in the other times. It would be like this ( Day 1 hour 0 to day 1 hour 1 = 0 ////// Day 1 hour 2 = 1 ////// Day 1 hour 3 = 0 /////// Day 1 hour 4 = 1 and so on... ). You should name your schedule (lets say for exemple) " Schedule 1 " ;

3/ Now, in the arrival of entities process, you should adujst your arrival process by choosing " Using schedule " at Time Between Arrivals, and choosing " Schedule 1 ".

To simulate your process, in the Run Setup, you should put the value 14 (Days) in the Replication Length so that the simulation cover the whole schedule.

I hope this helps !

P.S. : In Step 2/, I showed you how to create a schedule using only days and hours. If you want to be more specific and use the minutes (to be as precise as possible), you can change the Time Slot to 15 minutes.

Check this video : https://www.youtube.com/watch?v=JsisTgDb2oc

You have to use the decide module. It will serve the purpose. Work with ARENA V15 and above in case you do not have a commercial version. It allows upto 300 items, unlike earlier versions which are limited to 150 items

If I understand it correctly, for each species type (sspA, sspB or sspA&B), you had 16 individuals. You recorded/counted how many of these were found in which of the 3 habitats in the arenas. This was repeated 3 time per hour, during 24 hours. This would imply that the maximum is (ignoring the 'missings') 16 x 3 x 24 = 1152 counts.

I think you can run a chi-square test on the totals of the observed counts per habitat. See the example in the R script in attachment.

Interesting thing I observed that quite a few researchers like Creswell were quantitative researcher but bloomed into a quantitative researcher once they understood the limitations of quantitative research.

Use the rand, randn, and randi functions to create sequences of pseudorandom numbers. Use the rng function to control the repeatability of your results. Use the RandStream class when you need more advanced control over random number generation.

Functions

rand Uniformly distributed random numbers

randn Normally distributed random numbers

randi Uniformly distributed pseudorandom integers

randperm Random permutation

rng Control random number generation

Your problem relates to the Scheduling Theory area from Combinatorial Optimization. You are asking "For example if 30 patients are scheduled for one day should I use 30 create modules to create arrival of all patients?"

I would do this in such way:

1. Ddivide 30 patients into 6 groups of five people in each group.

2. Tell to each group to come at the appointed time interval [t1, t2], where ""Patient's arrival times t is random inside [t1,t2], t1 <= t <= t2 and for each patient it has a specified distribution"

3. Set the intervals [t1, t2] in such way that patients from different groups do not intersect. This can be done if you know the maximum patient care time. This means that it is necessary to properly divide all patients into groups so that patients from different groups do not overlap. Thus, you may not need 30 modules, but only 5 modules.

Also check those url:

My best regards.

Christopher,

Great points and perhaps we can collaborate to some degree. I'll be back in touch after getting additional input from others. Transcultural investigations become more pertinent in terms of generalizing findings.

Thanks for you input,

Rich, MSW

In order to recruit the right people in the company you need at least to know the psychology of the person. For example, what about you, you know your own worth, that is why you are ambitious, you can be entrusted  critical tasks, you will fulfill them. You are quite a persistent and persevering person. You define yourgoal and try to reach it. It is good for you to work individually, you are a creative person. But you can  also work in a team. You are impressionable, so you can be manipulated. Your career started during the studies and will continue until 45 years, then you will use the earned experience.

This is a really intriguing question... With no expertise in interpretation and gender (coming more from a cross-cultural and pragmatic background), my bet would be that this topic may need to be approached from a down-to-top angle. That is to say, what immediately pops to one's mind when reading your question, Laura, is whether one can study UN data as such, or rather it should not be more fortunate to break such data down to different cultures, considering that gendered relationships may be perceived differently across national cultures.

On a somewhat unrelated note, I would personally find it difficult to measure "belief" in this context, but then it would be interesting to study the phenomenon of "support" by looking into interactions between interpreters and clients.

I don't know if this comment is useful at all, just my 2 cents...

It is very easy to incorporate out side data in ARENA software. You can download tutorials from U-Tube.

Dear Hassan,

I suggest you to see links an attached files in topic.

-Manual of SIMULATION WITH ARENA FOR LAB - Note - NITC

nitc.ac.in/.../Manual%20of%20SIMULATION%20WITH%20ARE...

-Manufacturing Process Optimization - Arena Simulation

https://www.arenasimulation.com/.../Manufacturing_process_optim...

-Changing Attribute Values in a Queue or Group - Arena Simulation

https://www.arenasimulation.com/.../changing-attribute-values-in-a...

-8.13 Changing Resource Capacity - Simulation using arena

Best regards

I agree with Marcos Fernando Garber

You can use a Create module for each Process with its own times or a unique then Create plus a Decides with seven exits each with a Process for each count