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3D Printing: From Spaceship Engines To Personalized Orthotics

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3D printing is going mainstream, and is the future of mass production, manufacturing anything from plastic to human organs to aircraft and spaceships.


We often look at digitization through the lens of how it will transform industries, economies and governments but lose sight of the impact it will have on people. The manufacturing process is no longer what it was. With exponential technologies, we’re moving from analogue to digital, and as digital becomes more dominant, what is now referred to as the Fourth Industrial Revolution is, in fact, a human revolution.

 “With this next industrial revolution, what we have is the opportunity to have something that involves data, involves a connectedness, and as a result of that, has profound implications in terms of a true ability to participate globally in the new economy, explains Scott Schiller, HP Inc.’s Global Head of Customer and Market Development.


Scott Schiller, HP Inc.’s Global Head of Customer and Market Development. Picture: Supplied

“It comes down to personalization, localization, customization… and all of these things change the way we interact. There’s a lot of benefits, but they’re, in the end, they’re really a human benefit.”

A common misconception with 3D printing links to commercial, desktop printers that create once-off objects. The consumer 3D printing process is exciting, but tedious. Looking at next-generation manufacturing, mass industrial 3D printing is about building complex components or objects with internal structures that would be difficult, if not impossible, to replicate without a 3D printer.

NASA is testing the use of 3D-printed parts for its spaceship engines. Lonmin, a British producer of platinum group metals operating in South Africa, is using platinum powder to 3D print jewelry. Then, there’s Aeroswift, the largest 3D printer on the African continent, which can build 3D titanium aircraft parts with metal powder.

3D printing is going mainstream. It’s revolutionizing design, accelerating process-driven manufacturing across every industry and the accrued benefits are impacting society and the healthcare sector at scale.

Globally, and working closely with the World Economic Forum, HP has built a mutually-beneficial ecosystem around their Multi Jet Fusion technology and materials producers. From 3D-printed orthotics, which can be personalized to change the mechanics of how a person walks, to 3D-printed prosthetics, medical modeling is not new – it’s been around since the late 1980s (and if anything, the healthcare sector is where 3D printing first took off, thanks to the hearing aid market).

The key differentiator in digital manufacturing is mass production.

“Improved scanning technologies means the ability to get things exactly right, rather than roughly right, brings new possibilities.” says Schiller, adding that Invisalign Teeth Straightening uses a 3D-printed mould.

Nneile Nkholise is the Managing Director of iMed Tech, a company headquartered in Johannesburg that specializes in medical prosthesis design and manufacturing.

Nneile Nkholise is the Managing Director of iMed Tech. Picture:Supplied

“The most important areas of improvement in 3D printing is not in the technology per se, but in the application of the technology to create meaningful impact,” explains Nkholise.

“I truly believe that as a continent, we need to adopt the impact of 3D printing in achieving economic growth, particularly in healthcare, where the benefits of the technology are proven to create a positive shift in how we provide quality healthcare for every person on the continent – through products such as costing made prosthesis, bio implants and surgical planning models.”

3D printing is an integral part of what iMed Tech does, and it is used for both the creation of physical products as well as the development of prototypes.

“There is a backlog of medical products, such as prosthesis, which we have a high need for, particularly in a continent like Africa where there is a high number of people damaging or losing valuable body features due to traumatic accidents or diseases such as diabetes, which contributes to a lot of people losing limbs from lower-limb amputation. We are a human population that is experiencing a high rise in non-communicable diseases, which are resulting in physical damage to body features – the rise in breast cancer is one such disease,” says Nkholise.

“iMed Tech has recently been involved in optimizing digital 3D design and printing through the online platform for creating 3D surgical planning models to help surgeons reduce time for planning for surgeries, achieve accuracy and better respond to patient care.”

Digital technologies are reshaping the manufacturing landscape. They allow people living in remote or under-developed areas to become an integral part of the new global digital manufacturing system.

  • Tiana Cline 

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How Google Is Using AI To Make Voice Recognition Work For People With Disabilities

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Want to schedule an appointment? Just ask your phone. Need to turn on your bedroom lights? Google Home has you covered.

Now a $49 billion market, voice-activated systems have gained popularity among consumers, thanks to their ability to automate and streamline mundane tasks. But for people with impaired speech,  technologies that rely on voice commands have proved to be far from perfect.

That’s the impetus for Google’s newly formed Project Euphonia, part of the company’s AI for Social Good program. The project team is exploring ways to improve speech recognition for people who are deaf or have neurological conditions such as ALS, stroke, Parkinson’s, multiple sclerosis or traumatic brain injury.

Google has partnered with nonprofit organizations ALS Therapy Development Institute and ALS Residence Initiative (ALSRI) to collect recorded voice samples from people who have the neurodegenerative disease, one that often leads to severe speech and mobility difficulties.

For those with neurological conditions, voice-activated systems can play a key role in completing everyday tasks and conversing with loved ones, caregivers or colleagues. “You can turn on your lights, your music or communicate with someone. But this only works if the technology can actually recognize your voice and transcribe it,” says Julie Cattiau, a product manager at Google AI.

The company’s speech recognition technology utilizes machine learning algorithms that require extensive data training. “We have hundreds of thousands, or even millions, of sentences that people have read—and we use them as examples for the algorithms to learn how to recognize each,” says Cattiau. “But it’s not enough for people with disabilities.”

With Project Euphonia, the team will instead use voice samples from people who have impaired speech in the hope that the underlying system will be trained to understand inarticulate commands.

While the goal is to create technology that is more accessible for people with speech impediments, the end result is still unclear.

“It’s possible that we will have models that work for multiple people with ALS and other medical conditions,” says Cattiau. “It’s also possible that people, even just within ALS, sound too different to have such a machine learning model in place. And in that case, we may need to have a level of personalization so that each person has their own model.”

Google’s speech recognition technology can comprehend virtually any voice command for people without speech impairments, due to the large data set that has been available for training. But some uncertainty exists about how broadly speech technology will be able to understand and act on directives from those who have difficulty speaking. The Project Euphonia team has only a limited number  of voice samples from people with speech impediments, which allows it to focus only on specific-use words and phrases such as “read me a book” or “turn off the lights.”

Though Cattiau’s team has collected tens of thousands of recorded phrases, she says it needs hundreds of thousands more. That’s partly why Google CEO Sundar Pichai unveiled this project at the company’s annual developer conference in May.

“We are working hard to provide these voice-recognition models to the Google Assistant in the future,” he said, calling on people with slurred and impaired speech to submit their voice samples.

“Impaired speech is a very difficult data set to put together. It’s not as simple as asking people to record phrases, and there’s no data set just lying around,” Cattiau says. “We have to first put it together, and that’s a lot of work.”

Perhaps the most groundbreaking of Project Euphonia’s initiatives is its work on new interactive AI systems for people who are completely nonverbal. Also in its early stages, these systems are being trained to detect gestures, vocalizations and facial expressions, which can then trigger certain actions like sending or reading a text message.

“We want to cover the full spectrum of people—and not only those who can still speak,” says Cattiau. Although Project Euphonia is still in its infancy, it could eventually have a great impact on those with disabilities, giving them the freedom and flexibility to live independently.Follow me on Twitter.

-Ruth Umoh; Forbes Staff

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Nigeria Needs A More Effective Sanitation Strategy Here Are Some Ideas:

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In November last year, Nigeria declared that its water supply, sanitation and hygiene sector was in crisis. This was partly prompted by the fact that the country has struggled to make progress towards ending open defecation.

Almost one in four Nigerians – around 50 million people – defecates in open areas. They do so because access to proper sanitation, like private indoor toilets or outdoor communal toilets, has not improved in recent years.

In fact, it’s got worse: in 2000, 36.5% of Nigerians had access to sanitation facilities that hygienically separate human excreta from human contact. By 2015 the figure had dropped to 32.6%, likely driven by rapid population growth and a lack of sufficient private and public investment.

Open defecation comes with many risks. It can lead to waterborne diseases, cause preventable deaths, and hamper education and economic growth. It also infringes on people’s privacy and dignity.

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The government has tried several strategies to address this problem. In 2008 it adopted an intervention called “Community Led Total Sanitation”. This is a community-level intervention aimed at reducing open defecation and improving toilet coverage.

It draws in community leaders and ordinary residents so they can understand the risks associated with open defecation. By 2014 the intervention was deployed in all 36 Nigerian states, covering around 16% of the country’s 123,000 communities.

We wanted to know how effective the programme has been, if at all. So we conducted a study and found that community-led total sanitation programmes alone will not eradicate the practice of open defecation. But they could be part of the solution.

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We found that the programme currently works quite well in poor communities but is less effective in richer places – that is, places with higher average ownership rates of assets such as fridges, motorcycles, TVs, smartphones and power generators.

Poorer communities distinguish themselves from richer ones in other ways, too. They tend to have higher levels of trust among their citizens, lower initial levels of toilet coverage and lower wealth inequality. But none of these characteristics is, on its own, as strong a predictor of where the intervention works better than community wealth.

Low community wealth is a simple measure that encompasses all these different features, and is associated with greater programme effectiveness.

The intervention

Community-led total sanitation typically starts with mobilisation. This initially involves community leaders and then, through them, communities more broadly. Then, a community meeting is held at which residents typically start by marking their household’s location and toilet ownership status on a stylised map on the ground. They also identify and mark regular open defecation sites.

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Facilitators use the map to trace the community’s contamination paths of human faeces into water supplies and food. A number of other activities may follow, such as walks through the community that are often referred to as “walks of shame” during which visible faeces are pointed out, to evoke further disgust and shame.

Another common activity involves calculating medical expenses related to illnesses that are caused by open defecation practices.

The research

In 2015 we worked with the charity organisation WaterAid Nigeria and local government agencies in the states of Ekiti and Enugu to design a field experiment in areas with no recent experience of community led total sanitation, or similar interventions.

The community-led total sanitation programme was implemented in a random sample of 125 out of 247 clusters of rural communities.

To study the intervention’s effectiveness, we interviewed 20 randomly selected households before community-led total sanitation took place. We followed up with these households eight, 24 and 32 months after the intervention.

We found that the programme’s roll-out didn’t lead to any changes in sanitation practices in richer communities. But it worked in the poorest communities. The prevalence of open defecation declined by an average of nine percentage points in poorer communities when compared to other poor areas where the programme wasn’t implemented. This drop was accompanied by a similar increase in toilet ownership rates.

Impact depends on wealth

Our results are in line with observations by the designers of the programme. But we are the first to show quantitatively that community asset wealth is a good predictor of whether the intervention can be expected to be successful. Unfortunately, our data does not allow us to pin down why households in poorer communities are more susceptible to the programme. However, these results have important implications for more cost effective targeting of the programme.

Most countries, including Nigeria, have access to readily available datafrom household surveys that can be used to measure how asset-poor a community is. These data can be used to identify and target communities where community-led total sanitation is likely to have the biggest impact.

Eradicating open defecation is not just a Nigerian priority. Today, an estimated 4.5 billion people globally don’t have access to safe sanitation. So we also looked at data and research about this same intervention from other parts of the world.

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Community-led total sanitation intervention was first developed in Bangladesh in 1999. It has now been implemented in more than 25 Latin American, Asian and African countries.

We used information from evaluations of this intervention in Mali, India, Tanzania, Bangladesh and Indonesia. The studies found widely differing impacts. These ranged from a 30 percentage point increase in toilet ownership in Mali to no detectable impact on toilet ownership in Bangladesh.

Using a measure of wealth for these countries, we found that sanitation interventions have larger impacts in poorer areas, such as Tanzania, and low or no impact in relatively richer areas, such as Indonesia. This supports the idea that targeting poorer areas maximises the impact of community led total sanitation.

Conclusion

Our research shows that while community-led total sanitation is effective in Nigeria’s poorer areas, there are two main challenges.

First, community-led total sanitation had no perceivable impact in the wealthier half of our sample. There, open defecation remains widespread. And second, even in poor areas, a large number of households still engaged in open defecation after the intervention.

This suggests that while community-led total sanitation can be better targeted, it needs to be complemented with other policies – subsidies, micro-finance or programmes that promote private sector activity in this under-served market.

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African Music Platforms Soar As Spotify And Apple Snooze

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Creators and consumers of music seek African online music platforms even as global entities and record labels hesitate to fully commit on the continent.


Africa is a continent of over a billion people, with a young, increasingly tech-savvy population that has growing spending power and a desire to find new ways of accessing a wider range of content. And, at a sociocultural level, music plays a huge role in Africa.

A ripe environment for major global players in the music industry, you would think, but things have been rather quiet around digital music on the continent.

Spotify only launched in South Africa last year, and its only other African markets are Algeria, Egypt, Morocco and Tunisia. Apple Music is still only available in the same handful of African countries as at the time of its launch.

Where these companies have, so far, looked on, others have filled the gap. Chinese company Boomplay, founded in 2015, through a joint venture between phone manufacturer Transsion and consumer apps firm NetEase, now has 42 million users across multiple markets on the continent, and recently secured $20 million in funding to break into more countries.

Locally and regionally focused platforms are also seeing traction. Key among them is the Nairobi-based Mdundo, which has more than 3.5 million monthly active users in countries like Kenya, Tanzania, Uganda, Rwanda, Zambia, Zimbabwe, Mozambique, Cameroon, Ghana and Nigeria.

The company works with 50,000 musicians across Africa and has signed a licensing deal with Warner Music Group.

The company’s CEO Martin Nielsen says the sector is seeing strong progress, with artists flooding to online platforms to distribute their music and labels paying more attention to the continent.

“We’re experiencing an increasing interest in Africa and the music industry, both from commercial partners, record labels, music distributors and global music services. This is a very positive development, Africa is next in line,” he says.

The growth of platforms like Mdundo, and the launch of new ones, has benefits for both creators and consumers of music on the continent. For artists, they provide new ways of getting their music out there.

Dumisani Kapanga is founder of the Malawi-based streaming platform Mvelani, which has almost 100,000 songs in its catalogue and claims to have at least 40,000 users each day. He says services like his have broken down barriers to entry for artists.

“It’s now easier than ever for musicians to put out music to their fans without relying on record labels to do so. Within minutes an artist can have their music on some of the biggest platforms out there. We are providing the means for artists to be heard easily, without the need for expensive middle men,” Kapanga says.

For consumers, it is ever easier to access music new and old, in a variety of different ways. Damola Taiwo, co-founder of Nigeria-based music downloads platform MyMusic.com.ng, says download platforms such as his own remain the most popular due to factors such as accessibility and affordability, but sees a future in Spotify-style streaming services in Africa.

“The download services seem to still be the preferred method, where individual tracks are downloaded on devices and permanently owned. This is probably due to the cost and quality of internet access on the continent,” he says.

“However, there are other more structured platforms that also exist where listeners consume music. Some of them are streaming services similar to Spotify and Apple Music while others are download services, or a mixture of both.”

What business model to pursue, and how to monetize, are key challenges faced by local music platforms, and the fact that there are, as yet, no clear answers might account for the wariness of the likes of Spotify and Apple Music to bet big on Africa. Taiwo says another key issue is the lack of major record labels on the continent.

“Most artists will fall under the ‘indie’ bracket, and even the ones that have record labels are more like a one-man business with a maximum of three artists. This makes licencing difficult as there are too many entities to talk to,” he says.

The diversity of what is loosely referred to as the “African consumer”, but is, in fact, a huge mass of people with differing tastes and preferences, also poses a problem for music platforms. Nielsen says there is a rapidly growing middle class that demands the same service that global music services offer, yet they are still very data-cost conscious.

“Plus many of the smart devices have limited storage, so we tailor-make our solution to their needs. In addition to that, we have a mass-market segment on our service with low-end smartphone devices that we see a huge potential in with simpler music offerings,” he says.

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