Perot Systems was an information technology services provider founded in 1988 by a group of investors led by Ross Perot and based in Plano, Texas, United States. A Fortune 1000 corporation with offices in more than 25 countries, Perot Systems employed more than 23,000 people and had an annual revenue of $2.8 billion before its acquisition in 2009 by Dell, Inc. for $3.9 Billion. Wikipedia.
Teverovsky A.,Perot Systems
Proceedings - Electronic Components and Technology Conference | Year: 2010
Degradation of leakage currents in various types of solid tantalum capacitors under steady-state bias conditions was investigated at temperatures from 105 °C to 170 °C and voltages up to two times the rated voltage. Variations of leakage currents with time under highly accelerated life testing (HALT) and annealing, thermally stimulated depolarization currents, and I-V characteristics were measured to understand the conduction mechanism and the reason for current degradation. During HALT the currents increase gradually up to three orders of magnitude in some cases, and then stabilize with time. This degradation is reversible and annealing can restore the initial levels of leakage currents. The results are attributed to migration of positively charged oxygen vacancies in tantalum pentoxide films that diminish the Schottky barrier at the MnO2/Ta2O5 interface and increase electron injection. A simple model allows for estimation of concentration and mobility of oxygen vacancies based on the level of current degradation. © 2010 IEEE. Source
News Article | November 3, 2015
Reuters reports Dell is thinking of selling off non-core assets to clear the decks before the EMC acquisition and raise $10bn. Dell has refused to comment on this Reuters report. The four candidate products overlap EMC products or are relative failures. Thus SonicWall would be positioned against RSA security products from EMC. The Rapid recovery product overlaps with EMC's data protection portfolio with, for example, with Mozy doing the end-points and Networker looking after data centres along with Data Domain. Perot Systems doesn't have an EMC equivalent but it has struggled to fulfil its potential from when Dell bought it in 2009 for a then massive $3.9bn. Quest Software overlaps some of EMC's own management products. It was acquired by Dell in 2012 for $2.36bn. It, along with Rapid Recovery and SonicWall, is in Dell's Software Group which has been run by Jon Swainson since 2012. Suresh Vaswani runs the Services business for Dell. Dell is going to take on almost $50m in debt when the $67bn acquisition of EMC completes sometime next year. Dell and EMC have two executives, Rory Read from Dell and Howard Elias from EMC, looking at the overall portfolio and seeing what fits where – and, presumably, what doesn't fit at all. Possibly they have already been busy and this is one of the fruits, if that's the right term, of their labours. It's sad, if true, for the AppAssure/Rapid Recovery people as that product was given a major upgrade recently. ®
News Article | June 30, 2015
Top 50 Best Managed Outsourcing Vendors of 2009 or are they? Black Book of Outsourcing has been publishing the top outsourcing companies in world for a few years now and this year was no exception. They have recently published the list for 2009 as well. I am actually not a big fan of Black Book of Outsourcing list, simply because, if you compare 2007, 2008 and this years list, it will be very clear to you. I have been following this BBO best managed Outsourcing vendor list for 3 years in a row now, and the amount of changes in the ranking is just astonishing. I can understand 3-4 changes up and down, but if you compare all 3 years lists – they very different from each other ! I will give you a few examples: Here are the top 5 outsourcing companies for last 3 years from the list Have a closer look at all these 3 years and you will see that not one is same, infact, even all the companies are different. How can it be, that in one year they were at top and next year itself they are nowhere to be seen. Infact, if you will the 2008 top outsourcing list, Infosys does not even figure in top 50. I just cant fathom that ! In 2008 a company that was not at all on the list figures at number 4 this year ! and it is not just one company, most of them move up, down or even out of the list year on year – This is just not done… Anyways, I am still going ahead and publishing the 2009 best managed outsourcing companies list for your reference. I would seriously urge you to go through following and after comparing draw up your own conclusions. 2007- top 50 best managed global outsourcing vendors in the world 2008- Top 50 Best Managed Outsourcing Companies in the world What is your opinion, Do you think you can trust these lists?
News Article | June 10, 2015
In today’s digital world, there are marketplaces for everything; even for marketplaces! (Online fashion stores). However, in India, one sector that is yet to join this is driving schools. To bridge this gap, Drivekool was established. “Drivekool is an online marketplace between driving schools and their customers,” Mahesh Gidwani, Founder and CEO, says, “You can book driving classes online, request for other RTO services like driving licenses, international driving licenses, commercial driving licenses, an address change, NOC and road tax.” It also provides free mock tests to help customers prepare for their learner’s license. Like most of us looking for professional driving services, Mahesh and his wife too were looking for a credible driving school, one that could deliver services with a professional touch. However, they found the quality of training questionable. After discussing this with a couple of friends, the couple realized that it was a big pain point for many and there needed to be a solution for the same. Mahesh had returned from the US in 2009, and had joined Perot Systems, and later Dell, where he met his Co-founders Saumitra Kayal and Kumar Gaurav. When Mahesh came up with the idea, he discussed it with his colleagues and the trio decided to do something about the problem. “Market-wise, almost every individual who is above the age of 16 is our customer, as they might want to learn driving and apply for a license,” says Mahesh. Apart from this, Drivekool also targets businesses that need drivers. “There is more demand for drivers than supply, so these businesses could be taxi aggregators, bus operators, e-commerce companies and food chain companies, among many others,” adds Mahesh. He further adds that this shortage of drivers creates a huge opportunity for driving training. Drivekool, currently is operational only in Bengaluru, and has over 100 driving schools, with over 400 vehicles. The platform has over 2500 bookings and 1500 customers. However, the journey has been wrought with several challenges. Mahesh says that they were creating something that had never existed before, either as a technology platform, or as a business model. One of the biggest challenges the team faced was convincing driving schools to come on board and later pay for the services. Another challenge was finding driving schools that are reliable and offer good quality services. “Driving school owners and their staff members don’t understand technology; that makes adoption slightly slower than we thought,” adds Mahesh. “We definitely are looking to expand. In short to medium terms, we look to grow faster in Bangalore and then take it pan-Indian. This solution will have a huge social impact, as we aim to increase driving literacy and make driving safe on the roads in India. As per reports, we have accidents every minute and a death every 3.7 minutes on the road. This also causes national loss of over $20 billion. We definitely can’t take pride on these figures,” concludes Mahesh. As of 2013, India was the sixth-largest vehicle manufacturer in the world. As of 2014, reports suggest that over 3.22 million passenger vehicles were rolled out. India also is the eighth-largest commercial vehicle manufacturer, and the second-largest motorcycle manufacturer. The total turnover of the automobile industry has been estimated close to $35 billion. Since the manufacture of vehicles is on the rise, the need for skilled drivers too is increasing. Reports suggest that by the end of this year, the country’s road freight segment would need close to 51 million skilled truck drivers. With an increasing need for drivers, across various sectors like food, e-commerce, transport and delivery, these numbers are steadily increasing with each passing month. Will Drivekool be able to help streamline the unorganised and highly skewed marketplace? This is something we need to wait and watch for.
Liu Q.,Joint Center for Satellite Data Assimilation |
Liu Q.,Perot Systems |
Weng F.,The Center for Satellite Applications and Research |
English S.J.,UK Met Office
IEEE Transactions on Geoscience and Remote Sensing | Year: 2011
Satellite measurements from microwave instruments have made a significant contribution to the skill of numerical weather forecasting, on both global and regional scales. A FAST microwave Emissivity Model (FASTEM), which was developed by the Met Office, U.K., has been widely utilized to compute the surface emitted radiation in forward calculations. However, the FASTEM model was developed for frequencies in the range of 20-60 GHz, and it is biased at higher and lower frequencies. Several critical components such as variable sea surface salinity and full Stokes vector have not been generally taken into account. In this paper, the effects of the permittivity models are investigated, and a new permittivity model is generated by using the measurements for fresh and salt water at frequencies between 1.4 and 410 GHz. A modified sea surface roughness model from Durden and Vesecky is applied to the detailed two-scale surface emissivity calculations. This ocean emissivity model at microwave is now being used in the Community Radiative Transfer Model, and it has resulted in some major improvements in microwave radiance simulations. This paper is a joint effort of the Met Office, U.K., and the Joint Center for the Satellite Data Assimilation, U.S. The model is called as FASTEM-4 in the Radiative Transfer for TIROS Operational Vertical Sounder model. © 2006 IEEE. Source