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Ask AI Questions

A wavenumber k corresponds to a resolution of 2π, or p.p.w.

Which numerical resolution/ number of p.p.w. does wavenumber k correspond to if k∗h=π4, where h is the grid spacing?

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There are six transportive schemes corresponding to the computational stencils below.

1. Parabolic
2. Hyperbolic
3. Elliptic
4. Asymptotic parabolic
5. Asymptotic hyperbolic
6. Transverse isothermal

The problem is solved on a uniform grid, (x,t)->(i,n) Which of the linear advection schemes corresponding to the computational stencils below are transportive?

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At this numerical grid resolution, the solution amplitude will decay exponentially with time.

Consider a 1d diffusion equation. The diffused profile is solved on a very coarse grid with a spatial step h for Courant=0.4 for the scheme from the Matlab activity. Consider a wavelength to grid spacing ratio, λ/h=3. What will happen at this numerical grid resolution with the solution amplitude as the time evolves?

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An unsteady Navier-Stokes model of the jet problem is consistent and stable including the boundary conditions. This could mean that its solution's convergence to the experiment would be guaranteed when the grid is refined.

Consider an unsteady Navier-Stokes model of the jet problem. It is consistent and stable including the boundary conditions. Would its solution’s convergence to the experiment be guaranteed when the grid is refined?

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In image processing, FV, FD, and FE are three common methods for solving equations.

Which method does what – Finite Volumes (FV), Finite Differences (FD), Finite Elements (FE)?

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Computational fluid dynamics (CFD) is a field of study that applies mathematics and computer science to the analysis of fluid flow. It is used to understand and predict the flow of liquids, gases, and powders.CFD is used to design and test devices and systems used in industries such as petroleum, defense, manufacturing, and telecommunications.CFD is also used to study the behavior of biological tissues and biological fluids.

computational fluid dynamics governing PDE types?

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In mathematical terms, 1 + 1 is 2.

how much is 1+1

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The image accompanying this article will show a 1 metre-long 50 μm-diameter graded-index multimode optical fibre being used as an endoscope. This optical fibre is good for use as an endoscope because it has a high light transmission rate and is flexible.

why would a 1 metre-long 50 μm-diameter graded-index multimode optical fibre be good for a endoscope

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A device designed to be inserted through the nose and into the throat to examine the trachea and lungs.

Discuss what determines the resolution of an endoscope and estimate the resolution of this endoscope you designed.

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This camera is perfect for an endoscope as it has a very wide range of light emission. This allows the camera to capture images of objects that are difficult to see with other types of cameras.

why would a 2048X2048 pixels CCD camera covering 800 nm to 1000 nm range be good for a endoscope

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The green 100 mW laser is perfect for endoscope devices because it is a powerful laser that is not harmful to the user.

why would a green 100 mW laser be good for a endoscope device

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A bright white LED source is good for a endoscope device because it is easy to see and it is less likely to cause eye strain for the user.

why would a bright white LED source be good for a endoscope device

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A 1 metre-long 1 mm diameter optical fibre bundle consisting of 400 multimode optical fibres would be good for a endoscope device because it would be able to transmit optical signals with a high enough resolution to image small objects inside the body.

why would a 1 metre-long 1 mm diameter optical fibre bundle consisting of 400 multimode optical fibres be good for a endoscope device

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Four components to design an endoscope with the best resolution are the lens, the light source, the detector, and the imaging system.

As a medical engineer, you are asked to choose FOUR components from the following to design an endoscope with the best possible resolution

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$. This image has a typical step-index glass optical fibre with a core with a refractive index of 1.5 and a cladding with a refractive index of 1.48. Use numerical calculations to show if the fibre has better light-collection capability in air or in water.$ A typical step-index glass optical fibre has a core with a refractive index of 1.5, and a cladding with a refractive index of 1.48. Use numerical calculations to show if the fibre has better light-collection capability in air or in water

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When a person suffers a cardiac arrest, prompt and effective cardiopulmonary resuscitation (CPR) is crucial in restoring heart function and saving the individual's life. Today's standard medical defibrillator uses electric shocks to revive a person who has stopped breathing. However, this device has a number of limitations. For example, it can be difficult to set up and can be dangerous if not used correctly. In order to overcome these difficulties, a newly developed version of the defibrillat

how could a medical engineer develop a new version of the defibrillator which would prevent accidents when setting up the defibrillator

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A patient died after a defibrillator failed to discharge to the patient, It was found that the return electrode was connected to the hands-free cable by mistake instead of the defibrillator itself. Where the responsibility for this accident lies on?

A patient died after a defibrillator failed to discharge to the patient, It was found that the return electrode was connected to the hands-free cable by mistake instead of the defibrillator itself. Where the responsibility for this accident lies on?

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A medical engineer has come up with a new version of the defibrillator which features a design which prevents accidents.

how could a medical engineer develop a new version of the defibrillator which would prevent accidents from the perspective of instrument design.

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A patient died after a defibrillator failed to discharge to the patient. The return electrode was connected to the hands-free cable by mistake instead of the defibrillator itself.

A patient died after a defibrillator failed to discharge to the patient, It was found that the return electrode was connected to the hands-free cable by mistake instead of the defibrillator itself.

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With the proliferation of smartphones and other connected devices, it is inevitable that our personal data will be collected and used in various ways. Some of the most serious ethical issues with personal data storage and usage revolve around our data being collected without our consent and used to target advertisements or sell products in ways that may be unwanted or deceptive.

major ethical issues with personal data storage, personal data usage in marketing

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Personal data usage in marketing is a hot topic, but there is still a lot of confusion around what is and is not acceptable. In this article, we provide a concise summary of the ethical considerations around personal data usage in marketing, and make recommendations for how you can ethically study the issue.

Executive summary concise summary and recommendations for your ethical case study on personal data usage in marketing

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Executive summary:

The image accompanying this article will show a courtroom with a defendant on trial. The article will provide a concise summary of the ethical case study, and will also provide recommendations for how to proceed based on the information learned.

Executive summary concise summary and recommendations for your ethical case study

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The image accompanying this article will show a group of people sitting in the cafeteria, eating their lunch. One of the people in the group is holding a paper plate with a sandwich on it. The other people in the group are discussing the sandwich, some of which are considering whether or not they should eat it.

ethical case study for dla2

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Photolithography is a process that creates patterns or images on a surface by using light to etch patterns into a Base Material. Advantages of Photolithography include the ability to create patterns with high resolution and high precision, as well as the ability to create patterns with a wide range of colors and finishes. Limitations of Photolithography include the need for a precision etching process, as well as the need for an accurate manufacturing process.

adavantages and limitations of Photolithography

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Soft lithography is a printing technique that uses a water soluble ink and a soft substrate, such as paper. This printing process is often used for low-cost products and can be used on a wide range of materials, including paper, cardboard, and plastics.

Advantages of soft lithography include the ability to print on a wide range of materials and a low cost of printing. Limitations of soft lithography include a slow printing process and the inability to print in large quantities.

adavantages and limitations of • Soft Lithography

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with images.

A vascularised cancer spheroid can be created in vitro by following a step-by-step approach. Illustrating your answer with images will be helpful. First, a pelletized cancer sample is prepared by freeze-drying the cancer cells. This is important because it allows for the accurate tracking of cancer cells in the spheroid. Second, a collagen coating is applied to the cancer pellet. This will ultimately create the vascularised cancer spheroid. Finally, a template is created to perfec

Propose a step-by-step approach to design a vascularised cancer spheroid in vitro model. Illustrate your answer where possible

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below.

-Microfabrication techniques can be used to create organ-on-a-chip systems.
-Some advantages of using microfabrication techniques are that they are cheap and easy to set up, and they can produce high-quality devices.
-Some limitations of using microfabrication techniques are that devices created using them may not be Translatable or Integrative.

Describe two microfabrication techniques that can be applied to the generation of organ-on-a-chip systems and describe their advantages and limitations of the model. Use bullet points to explain your answers

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1. The patch must be able to withstand the high levels of pressure and heat that are generated during cardiac surgery.
2. The patch must be able to stick to the patient's skin and be sufficiently thin to not cause discomfort or pain.
3. The patch must be able to release the desired amount of stem cells into the blood stream.
4. The patch must be able to maintain its effectiveness over a long period of time.
5. The patch must be able to be easily removed and replaced if necessary.

Describe five challenges associated with the design and use of stem cell patches for cardiac repair

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Stem cells can promote graft vascularisation in vivo by secreting vascular endothelial growth factor (VEGF).

Describe the mechanisms via which mesenchymal stem cells are proposed to promote vascularisation upon implantation in vivo

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Induced pluripotent stem cells have the potential to be used to treat a variety of diseases. However, they also have a number of strengths and weaknesses.

induced pluripotent stem cells three strenghts and weakness

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Cell-based therapies have the potential to regenerate tissue and repair damaged cartilage. Researchers evaluated one cell-based therapeutic solution to engineer cartilage using research from the last two years.

Evaluate one cell-based therapeutic solution to engineer cartilage using research from the last two years.

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Three state-of-the-art technologies that have been developed from 2018 to 2020 for cartilage repair and could be used to improve performance of tissue engineering product.

Give examples of three state-of-the-art technologies that have been developed from 2018 to 2020 for cartilage repair and could be used to improve the performance of the tissue engineering product.

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In order to engineer cartilage constructs for implantation into knee joints for animal studies, Scientists mustaddress the challenges of engineering cartilage in vivo.

Address the challenges of engineering cartilage constructs for implantation into knee joints for animal studies in mice and pigs.

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