Simulink might produce an incorrect sorted order for a model that meets all of the following conditions:

• The model contains blocks from the SoC Blockset
• The Signal logging option is selected in the model configuration set
• Signals using asynchronous sample time are configured for logging

When the Signal Editor is saving data, the indicator that the save is occurring does not appear.  You might notice a delay when saving large data files.This bug exists in the following release(s):
R2020a

Interested in Upgrading?

In certain scenarios, a Subsystem Reference block changes its position. It can happen during: 

1. Loading of top model which contains the Subsystem Reference block 
2. Synchronization of Subsystem Reference block's contents
3. Converting a subsystem to Subsystem Reference block 

An intuitive method is presented for detecting pseudosymmetries in Z' > 1 cases as a complement to well-proven strategies already available in the literature. It is based in the simple idea that the mid-points between equivalent atoms in symmetrically related mol­ecules are disposed according to simple well-known patterns, which are easily recognizable by optical inspection. A number of Z' = 4 cases in the literature are analyzed, which allows some of the potentialities of the method to be revealed.

To describe multiple Bragg reflection from a thick, ideally imperfect crystal, the transport equations are reformulated in three-dimensional phase space and solved by spectral collocation in the depth coordinate. Example solutions illustrate the orientational spread of multiply reflected rays and the distortion of rocking curves, especially for finite detectors.

The increase in the number of children from low-income families who are receiving federal disability benefits for speech and language disorders over the past decade parallels the rise in the prevalence of these disorders among all U.S. children, says a new report by the National Academies of Sciences, Engineering, and Medicine.

To enable public transit agencies to engage in more rigorous and effective safety planning, their safety planning records should not be admissible as evidence in civil litigation, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Today’s post is by Owen Paul, who is a Student Ambassador Technical Program Specialis. He himself was a student ambassador before joining MathWorks, and he was featured in the Community... read more >>

COVID-19 Research and Development Sean's pick this week is COVID-19 Research and Development by MathWorks. We were recently introduced to this page which highlights uses of... read more >>

People who are committed to reducing their environmental impact at home do not necessarily behave in the same way when on holiday, according to a new study. The study presents a more complex view of consumer environmental behaviour than is often used to inform policymaking.

An international team of scientists has described a rare fossil site that is believed to be among the earliest evidence of different fish species using a common nursery -- much like ones utilized by some fish today.

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Storage of carbon in soil helps to keep land fertile and regulates the climate, and is therefore an important ecosystem service. However, mapping of soil carbon stocks currently uses unreliable measures. This study used data from a national survey of English grasslands to show that soil carbon stocks can be accurately predicted using simple measures of soil and climatic conditions.

Researchers have developed a straightforward approach to help small to medium enterprises (SMEs) analyse their energy use and increase efficiency. They tested the methodology on 280 businesses in Europe, which, as a result, invested more than €10m in energy-saving measures. The measures reduced energy use by 6 500 toe (tonnes of oil equivalent) per year and avoided 13 500 tonnes of CO2 emissions.

While extreme environmental events — such as floods and tsunamis — may trigger migrations, the underlying drivers of migration are far more complex and diverse, says new research. The research reviewed the available evidence on population movements associated with extreme weather events and found that people could find themselves ‘trapped’ and vulnerable, whether they stayed at their homes or moved to new locations.

A new tool for flood simulation and visualisation is accessible for both experts and practitioners, allowing them to collaborate better on flood planning and relief. Among other features, the new system includes 3D simulations, rainfall simulation and water flow data.

A recent study has proposed changes to the way REDD+ strategies are categorised, from an implementation perspective. This will simplify the monitoring, reporting and verification of the schemes. In addition, to encourage countries to make an early start on the REDD+ programmes, the study suggests that monitoring should initially focus on forests where it is easiest to implement REDD+ actions.

‘Product-service systems’ are innovative business models designed to satisfy societal needs in an environmentally sustainable manner. This study explores how government policies could increase the uptake of these systems, outlining five key recommendations to achieve this, including schemes to raise awareness and involve local authorities.

Climate change will substantially increase the severity and length of droughts in Europe by the end of the century, according to new research. The study showed that some European countries could experience a reduction in river flow of up to 80% by the 2080s.

River flooding costs billions of euros annually in the EU. When one river floods, others nearby often do so at the same time — extending the overall impact beyond the border of an individual drainage basin. With this in mind, this study analysed the spatial extent of flood events across Europe from 1960 to 2010, using data from the European Flood Database (EFD). The research presents key findings for flood forecasting, risk financing and flood-mitigation policy.

Google has announced machine images, a new type of Compute Engine resource that contains all the information people need to create, backup or restore a virtual machine, reducing the amount of time people spend managing their Cloud environment.

Researchers have recommended new, improved ways of increasing the ecological value of European grasslands. Plant diversity ??? or species richness ??? can be increased by a factor of three through sowing grass and wildflower seed mixtures, together with a carefully controlled plan for animal grazing.

New research from central Italy shows that high nature value farmland in the region can be accurately identified by the presence of just four bird species. Once such groups of species have been identified for different regions, they can provide a quick and inexpensive tool for assessing the ecological value of farmland, the researchers say.

Trawling's impacts on marine ecosystems can be assessed using simple metrics which characterise easy-to-obtain samples of fish, new research suggests. The Portuguese study shows that groups of fish become dominated by fewer species as fishing intensity increases, while their total biomass declines. Moreover, in the most fished areas there were other noteworthy changes, such as substantial reductions in the proportion of sharks and rays.

Last week, my colleague Mariano Lizarraga Fernandez pointed me to the Washington post simulation of COVID-19 and we thought it would be interesting to implement something similar using MathWorks products.... read more >>

In a previous post, I introduced a model simulating the exponential spread of a phenomenon like COVID-19. With more and more talks in the news about deconfinement plans, I thought it would be interesting to run multiple simulations with different deconfinement scenarios and observe the potential outcomes.... read more >>

Traffic fumes can cause serious health problems, but their distribution and spread in complex urban environments can be hard to predict. Now, researchers have created the ‘STEMS-Air dispersion model’, which can be used by planners and health authorities to give accurate daily and annual estimates of exposure to traffic fumes and other forms of air pollution in cities.

Indoor air quality can be significantly improved using a simple device which traps harmful chemicals emitted from glues, paints and building materials, a new study has shown. Designed in Sweden, the researchers demonstrate that the 'surface emissions trap', especially effective for damp buildings, also prevents emissions from mould and can remove unpleasant odours.

Nitrous oxide (N₂O) is a potent greenhouse gas and atmospheric pollutant. A new study proposes tackling both problems by removing N₂O from the atmosphere using a combination of two innovative technologies — photocatalytic breakdown of the N₂O to nitrogen and oxygen, and this within a solar chimney power plant that generates renewable electricity. Although some way off from commercial development, the researchers say this approach is feasible, and they outline how these two technologies can be integrated to reduce the climate impact and polluting effects of N₂O emissions.

It may be possible to use trees to monitor levels of air pollution in cities, new research suggests. A Belgian study found evidence that leaves of urban trees change both chemically and physiologically when exposed to different levels of air pollution. If these changes are carefully quantified, trees could provide cheap and widespread ‘bio-indicators’, the study’s authors suggest.

After trying to find ways to deal with unbearable heat, Grey and Myke discuss how they like to spend their time away from work, and put the 'Great Perspective Zoom Debate' to rest.

Fifth-year students at the NTU Lee Kong Chian School of Medicine have started on SimConsult - a simulated clinical training - after postings to hospitals were suspended due to the Covid-19 outbreak....

NPR radio host Scott Simon has been touching people across the country by tweeting from his mother’s deathbed in a Chicago hospital.

Astrophysicist is using 3-D images generated by a supercomputer to understand what happens with a supernova explodes.

A horse near the East Fire in California runs back into danger to save its family.

Nissan and Electronic Arts joined forces to bring electric vehicles to the popular SimCity game.

Business magnate shares the benefits and practice of daily meditation in his new book 'Success Through Stillness.'

Direct-to-consumer water filter company Mesopaper removes a variety of contaminants without the mess, waste or high price tag.

Four astronauts are spending 12 days underwater to prepare new methods for working in outer space. And they're Tweeting about it.

Every two years, the National Science Foundation asks 10 questions to see how much Americans know about science.

A Utah bus driver boosts young girl's spirit with daily hair help. "That's what moms do," says driver Tracy Dean.

A new study suggests the shape of an egg is determined by how much time a bird spends in flight.

A simple parenting technique helps Inuit children learn to control anger at an early age.

Ryan Nicodemus discusses how and why he and Joshua Fields Millburn left successful careers, ditched most of their stuff, and set up shop in a Montana cabin.

If you have trouble performing these tests, your life could be cut short.

Begley showed up on 'The Simpsons' last night and was nearly hit by a solar-powered train while driving a solar-powered car during a solar eclipse.

In its magnificent mini-epic 10-part series, "Moving Beyond the Automobile," Streetfilms has created a handy, eye-catching primer to the most important transfor