Model Airplanes

Digital Twin for Data Centers

The constant flux of IT configurations means that a data center’s design is never fixed. With inconsistent data, data-driven models will suffer. Consequently, past patterns do not necessarily map onto future ones and future behavior cannot be predicted based on past configurations.

For example, if a colocation provider moves a row of cabinets two cells to the left, this will completely change the data center environment. As a result, previous data will not help engineers to predict the future behavior of the facility once new cabinets are installed and the IT is switched on. This example, demonstrates a clear gap in the effectiveness of data-driven models – whilst they have been used successfully in the data center industry, they are still subject to many of the same shortcomings as human operators.

To fill these gaps, rather than using an exclusively data-driven model, data center digital twins are also physics-based, with the ability to simulate the performance of a new configuration. A physics-based digital twin consists of a full 3D representation of the data center space, architecture, mechanical and engineering systems, cooling, power connectivity, and the weight bearing capability of the raised floor. The data allows you to predict, visualize and quantify the impact of any change in your data center prior to implementation, empowering you to make decisions with confidence.

Article source: https://www.datacenterdynamics.com/opinions/does-your-data-center-need-digital-twin/

The best-selling commercial jet in history, which was 52 years after its first flight, the 737 had its production questioned in the 1970s, but it had never experienced a grounding like the MAX variant last week.

The situation, however, is not unique to the model. Several commercial airplanes went through difficulties at the beginning of their operation and a good part surpassed them without affecting their sales. But there were aircraft that did not recover after serious accidents, even though they corrected their design problems. Here are some of these airplanes:

Lockheed L-188 Electra II

Lockheed had a prestige among airlines with the classic Constellation, but its next airplane turned out to be a sales failure, the Electra II.

Four-engine turboprop, the plane honored an earlier model of the manufacturer and was born with the goal of supplying US airlines with an ideal model to cover short and medium distances.

At a time when the commercial jets debuted the Electra still seemed to be valiant aircraft with some interested airlines like American Airlines and Eastern. But two accidents in the late 1960s affected his image. In both cases, the wings were detached from the fuselage in a cruise flight.

The Federal Aviation Administration (FAA)

Article source: https://www.airway1.com/boeing-737-max-grounding-is-not-an-uncommon-situation-in-commercial-aviation/

Storm-Free Outlook: Hints of Spring Next Week

Just because you’re not paranoid doesn’t mean Mother Nature isn’t out to get you. Surviving a Minnesota winter is not a spectator sport. There are rules: avoid hitting other moving vehicles. Try not to fall on the ice. Go easy on shoveling to lower the risk of heart attack. Good grief. We should all get Olympic medals for outlasting Old Man Winter.

Flooding remains an issue over southern Minnesota, but larger rivers probably won’t crest until the first or second week of April. Short term there’s some good news: no storms of any flavor next week, and nighttime lows dip below 32F the next 7 nights, slowing down the rate of snow melt. That said, with comparisons to 2001 and 1965, people living near rivers should pay attention and have a plan.

A dry weekend gives way to flurries or sprinkles Tuesday, and then it warms up nicely, in spite of dirty snow piles on the ground. Models suggest a few 50s late next week.

With recent rains the snow is going fast. Snow cover at MSP dropped from 17 inches Monday to 4 inches yesterday.

We’re turning a (big) corner. 

Photo: Bryan Hansel Photography.

Going Fast. From 17″ down to 4″ of snow depth (MSP International Airport) in 4 days? It shows you what 40s and heavy rain can do to snowpack. Graphic: Praedictix.

Road Closures Due To Flooding. Minnesota 511 has updates on highways impacted by rising water.

Latest Flood Warnings. The

Article source: http://www.startribune.com/severe-flooding-omaha-to-southern-wisconsin-50s-possible-late-next-week/507220492/

Apple a few days ago sent out invites for a March 25th press conference where the company is widely expected to unveil its own Netflix-like video streaming product. Services may be the focus of the upcoming keynote, but Apple is also expected to introduce new hardware soon, including the new AirPods 2 wireless headphones, the AirPower universal wireless charger, and a couple of affordable iPads, the iPad 7 and iPad mini 5. It’s unclear, however, whether all of these devices will be unveiled during the media event, but a new report suggests the launch of new iPads and AirPods is imminent.

Component suppliers from Asia are already manufacturing parts for unreleased Apple products, including iPad and AirPods, Digitimes says. The report notes that flexible PCB makers Flexium Interconnect and Zhen Ding Technology are readying mass production for the next-gen iPad, and Compeq Manufacturing and Unitech PCB make rigid-flex boards for the upcoming AirPods models.

The report doesn’t offer any details about either product but does refer to them as the “new-generation iPad” and AirPods 2. Digitimes’s sources said that Apple would introduce the devices on March 25th.

A report earlier this week said that Apple might be launching a third large-screen iPad this year, one that wasn’t mentioned in any of the previous rumors. The iPad 7 should sport a 10.2-inch display, but a 10.5-inch iPad “non-Pro” would debut later this year. We’d expect Apple to launch new iPad Pro models in late 2019 as well.

The

Article source: https://bgr.com/2019/03/14/airpods-2-release-date-close-as-parts-suppliers-start-production/

A Boeing 737 MAX 8 airplane pictured on Thursday in Seattle.

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Ted S. Warren/AP

A Boeing 737 MAX 8 airplane pictured on Thursday in Seattle.

Ted S. Warren/AP

Updated at 6:03 p.m. ET

Data retrieved from the black boxes of the Ethiopian Airlines crash that killed all 157 people on board last week show “clear” similarities with the crash of a Lion Air jet in Indonesia last October.

Both crashes involved the same model of plane: the Boeing 737 Max 8.

Article source: https://www.npr.org/2019/03/17/704223209/mass-funeral-held-for-ethiopian-airlines-crash-victims-as-investigation-continue