Daily Archives: August 6, 2019

Updates from Ciena

Posted on August 6, 2019 by | Leave a comment

How coherent technology decisions that start in the lab impact your network
What is the difference between 400G, 600G and 800G coherent solutions? It seems to be obvious, but is it just about maximum wavelength capacity? Why are different baud, modulations or DSP implementations used, and more importantly, what are the networking implications associated with each?
By Helen Xenos – 32QAM, 64QAM, and hybrid modulation….32, 56, 64, now 95Gbaud? Are they really any different? Fixed grid, flex grid, what’s 75GHz? Is your head spinning yet?

Coherent optical technology is a critical element that drives the amount of capacity and high-speed services that can be carried across networks and is a critical element in controlling their cost. But with multiple generations of coherent solutions available and more coming soon, navigating the different choices can be difficult. Unless you are immersed in the details and relationships between bits and symbols, constellations and baud in your everyday life, it can be confusing to understand how the technology choices made in each solution influence overall system performance and network cost.

To clarify these relationships, here is an analogy that helps provide a more intuitive understanding: consider performance-optimized coherent optical transport as analogous to freight transport.

The goal of network providers using coherent is to transport as much capacity as they can, in the most cost-efficient manner that they can, using wavelengths across their installed fiber. This is similar to wanting to be as efficient as possible in freight transport, carrying as much payload as you can using available truck and road resources. more>

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Posted in Book review, Business, Communication industry, Economy, Education, How to, Net, Science, Technology

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Updates from Chicago Booth

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How machine learning can improve money management<
By Michael Maiello – Two disciplines familiar to econometricians, factor analysis of equities returns and machine learning, have grown up alongside each other. Used in tandem, these fields of study can build effective investment-management tools, according to City University of Hong Kong’s Guanho Feng (a graduate of Chicago Booth’s PhD Program), Booth’s Nicholas Polson, and Booth PhD candidate Jianeng Xu.

The researchers set out to determine whether they could create a deep-learning model to automate the management of a portfolio built on buying stocks that are expected to rise and short selling those that are expected to fall, known as a long-short strategy. They created a machine-learning algorithm that built a long-short equity portfolio from the top and bottom 20 percent of a 3,000-stock universe.

They ranked the equities using the five-factor model of Chicago Booth’s Eugene F. Fama and Dartmouth’s Kenneth R. French. Fama and French break down the components of stock returns over time into five factors: market risk, in which stocks with less risk relative to their benchmark outperform those with more risk; size, in which companies with small market capitalizations outperform larger companies; value, where a low price-to-book ratio outperforms high; profitability, where higher operating profits outperform; and reinvestment, in which companies that reinvest outperform those that don’t. more>

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Posted in Banking, Book review, Business, Economy, Education, How to, Technology

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Updates from Siemens

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Paragon VTOL Aerospace adopts solutions from Siemens to streamline next-generation design
By Alisa Coffey – The need for increased performance and reduced time-to-market has led Paragon VTOL Aerospace, a global vertical take-off and landing (VTOL) aircraft provider for numerous industries, to adopt solutions from Siemens Digital Industries Software through its product development process. Paragon produces industry-specific drone hardware ranging from security applications for agricultural theft and commuter law adherence to human passenger drones.

Paragon is also partnering with Aerotropolis Jamaica, a national project spearheaded by the Hon. L. Michael Henry in the Office of the Prime Minister, to build an ecosystem for Urban Air Mobility (UAM). The company plans to achieve positive results by reducing time and cost of its product development and testing through implementation of key technology from Siemens.

“Our vision is to provide a portfolio of intellectual property, industry specific drones, human passenger drones, and virtual highway platforms in Jamaica,” said Paragon VTOL founder and oil executive Dwight Smith, a native Jamaican and American citizen. “We currently have plans to implement software and hardware programs in 2019 and begin testing their two to four passenger drones by year-end 2019.”

Paragon has been developing their platform and much of the technology through collaboration with Siemens, major American universities, Silicon Valley experts, and ex-military personnel. Siemens is providing an integrated set of software solutions including STAR-CCM+, Simcenter, and NX for Paragon to design, test, produce, and monitor its extensive range of drone systems. more>

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Posted in Broadband, Business, Economic development, Economy, Education, How to, Science, Technology, Transportation

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Updates from Adobe

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Maria Brzozowska Makes Magical Realities
By Jenny Carless – “My aim is to empower my audience as active storytellers,” Maria Brzozowska says. “It’s very valuable for me when my audiences are able to relate to my illustrations and create or find pieces of their own stories. It’s like an invisible connection between us.”

The Ankara-based artist and book illustrator describes her art as a merging point of fantasy and reality—what she calls magical realism.

“My illustrations allow the audience to encounter new, unknown lands where there is no definite time or space, and in doing that, return to a sense of possibility that we lose as we grow up,” she says.

Brzozowska grew up in a household of creatives, so in many ways her career was an inevitability, she says.

“I remember being encouraged to look at the world through different perspectives and to ask myself ‘what if?’,” she recalls. “Many of the answers to that question I found in the endless possibilities of being a visual storyteller.”

She spent time experimenting with various media before finding a balance between a digital and traditional styles. She started with a digital approach, but with practice and patience developed her manual skills. “The more confident I became, the easier it was for me to do most of my work by hand,” she says. more>

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Posted in Business, Economy, Education, How to, Media, Net, Technology

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