Using Simulation to Study Ultrasound Focusing for Clinical Applications

Guest Thomas Clavet August 31, 2017

Today, guest blogger Thomas Clavet of EMC3 Consulting, a COMSOL Certified Consultant, discusses simulating phased array and geometrically focused probes. Ultrasound focusing is widely used in various industrial applications, such as nondestructive testing (NDT) and medical imaging. For clinical applications, high-intensity focused ultrasound (HIFU) is a specific aspect of this technology where most of the power provided by the probe is carried to a targeted zone to coagulate biological tissues. This blog post discusses ultrasound focusing simulation.

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Brianne Costa August 30, 2017

“I think I can safely say that nobody understands quantum mechanics.” — Richard Feynman, in The Character of Physical Law (1965). Although the Nobel-prize-winning physicist might have been speaking in jest, quantum mechanics is a difficult concept to teach — and simulate. Modeling a double-barrier structure in the COMSOL Multiphysics® software can help teach quantum mechanics concepts to physics students as well as enhance the research and development of semiconductor devices.

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Bridget Paulus August 29, 2017

Nonconducting film (NCF) is an emerging underfill adhesive technology used to assemble electronic components in the microelectronics industry. Optimizing the NCF material and process can be difficult, as they must achieve a fast bonding time, high degree of cure, and correct underfill fillet shape. Achieving a successful bond depends on the interaction between the material’s chemorheology and the bonding process parameters. To understand these interactions, Veryst Engineering simulated the flow and cure on an NCF during the thermocompression bonding process.

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Bridget Cunningham August 28, 2017

Pipelines are used to transport petroleum products and natural gas across long distances in cold environments. Because of this, petroleum mixtures may need to be preheated after being transported in pipelines before a refining process can begin. However, as the oil is pumped through the pipeline, heat is generated from the fluid itself as it flows. To keep costs down and the heat inside the pipe, the pipeline insulation can be optimized using models and simulation.

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Brianne Costa August 25, 2017

A leading cause of smog and particulate pollution is the harmful emissions from automobiles, especially those that run on diesel engines. Today, most vehicles with diesel engines are required to install a diesel particulate filter (DPF) to catch carbon-based particulates that are emitted from their exhaust. Using the COMSOL Multiphysics® software, we can analyze the acoustics of a DPF.

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Caty Fairclough August 23, 2017

During his lifetime, Osborne Reynolds contributed to many fields, such as mathematics and thermodynamics. However, his most famous achievements were in the realm of fluid mechanics. To celebrate the anniversary of his birthday, let’s take a brief trip through the life and work of Reynolds, including one of his key accomplishments: the Reynolds number.

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Ruud Börger August 22, 2017

Have you ever feared a deadline because your model took longer to solve than expected? Here, we discuss common causes of time delays and how to prevent them. Let’s start with a real-world example: solving a complex modeling project on a deadline.

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Nancy Bannach August 21, 2017

As of version 5.3 of the COMSOL Multiphysics® software, the Subsurface Flow Module includes useful new features that enable you to set up complex modeling tasks more efficiently. For example, when modeling wells, meshing is significantly easier and is more intuitive to set up with the Well feature. In this blog post, we look at the Well feature, discussing how to use it and ways it enhances the modeling process.

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Magnus Ringh August 17, 2017

During sunny days, it’s tempting to bring food and drinks outside to enjoy the weather. However, it can be a challenge to keep wine (or any beverage) cold in the heat. Wine coolers supposedly keep chilled beverages cold for at least an hour. In this blog post, we use the COMSOL Multiphysics® software to see how a wine cooler works and whether or not it can keep drinks cool.

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Caty Fairclough August 16, 2017

Research shows that microgravity exposure has an effect on the human body, such as by suppressing immune cell activity. This phenomenon also affects cancer cell migration. Making use of this fact can lead to the identification of new therapeutic targets for metastatic cancer cells. In this blog post, we’ll discuss how a research team used the COMSOL Multiphysics® software to design a culturing system to study cancer cell migration in microgravity.

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Caty Fairclough August 15, 2017

Zone electrophoresis separates different species in a sample into distinct well-resolved peaks, giving scientists the ability to analyze substances like proteins and nucleic acids. Improving this electrophoretic separation technique requires us to accurately model the transport and separation of these species. Here, let’s look at how the COMSOL Multiphysics® software can be used to simulate the movement of species during zone electrophoresis.

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