Garcia F.,Sao Paulo Agency of Agribusiness Technology Government of the State of Sao Paulo |
Kimpara J.M.,PI Corporation |
Valenti W.C.,Sao Paulo State University |
Ambrosio L.A.,Sao Paulo Agency of Agribusiness Technology Government of the State of Sao Paulo
Ecological Engineering | Year: 2014
Considering that most of the energy supply in Brazil is derived from hydroelectric sources, the government has been strongly encouraging cage farming in federal water bodies. The government limited the aquaculture parks in hydroelectric reservoir to only 1% of its total area and, inside the parks, a ratio of 1:8 referring to the park and organic load dilution area. However, no objective evaluations proved that limit is suitable, and the absence of a methodology to evaluate this impact is a considerable problem. The aim of this study was to evaluate the Nile tilapia cage farming sustainability in a hydroelectric reservoir in Brazil using an emergy assessment and to simulate management techniques and public policies that contribute to the sustainability of this farming system. The results of the emergy assessment indicate that this production model has low renewability, is inefficient (mostly due to feeding), does not use local resources and presents high environmental impact. Therefore, we have analyzed three scenarios, in which reducing the inputs of non-renewable resources and enhancing environmental inputs were considered. Reducing the stocking density from 100 to 20kg/m3 in the initial farming stage and enhancing the dilution area from 1:8 to 1:100, referring to the cage and organic load dilution area, makes the current production system a sustainable model based on the use of natural renewable resources. © 2014 Elsevier B.V.
PI Corporation | Date: 2015-08-28
An optical readout device for providing visual circumference and diameter readings of an object being measured by a linear tape. The tail end of the tape passes by a reader element in a digital device which is equipped electronically with the pi conversion factor to provide selective readings of diameter in English and metric units, as well as circumference readings. The device can be employed for external (outside) and internal (inside) measurements.
News Article | July 8, 2008
Stock in virtualization provider VMWare today dropped almost 25%, as growth expectations were lowered and founding CEO Diane Greene was replaced by the board. Prior to today, VMWare was the fourth largest software company in the world, with a market cap of over $20B. They have slipped down the list and lost $5B in value as the company struggles to match high growth expectations places on it after its much-hyped IPO almost a year ago. Greene, an original founder of the VMWare company, will be replaced by Paul Maritz as President and CEO, and he has also been assigned to the board of the company. Maritz was the founder of Pi Corporation, a cloud based storage and services provider that was acquired by EMC last year. Previously Maritz was the VP of Cloud Services at EMC, and prior to that he was a long-term executive at Microsoft. The company faces a number of fresh challenges as the virtualization market heats up with the entry of Microsoft with their virtualization platform, now built into Windows Server, and their new Hyper-V product, which will retail for only $28, fractions of the cost of a VMWare solution. VMWare: A missed opportunity for EMC? Continue reading at Techcrunch IT >>
News Article | November 16, 2008
EMC Corporation is announcing the creation of a new subsidiary this morning called Decho (for Your Digital Echo), which has been formed from the assets of two acquisitions: Mozy (acquired in September 2007) and PI Corporation (acquired in February 2008). The new company is focused on protecting and managing personal digital data. It will continue to offer Mozy’s personal backup product and will add new products over time. The Mozy platform, which now stores over 10 petabytes of user data, has over a million users, 200,000 of which are paying customers. We were particularly impressed with its Mac product, first launched in mid-2007. There isn’t much information on what new applications the company will launch. But if PI Corp. is anything to go on, look for rich metadata and contextual information to be a part of it. PI Corp. was acquired before launching their flagship storage/backup product. But their website suggests they are far more focused on managing, organizing and searching files than simply backing them up – something Mozy never tackled. The combination of the two platforms is more than interesting.
News Article | July 9, 2008
Diane Greene, co-founder, president and chief executive of virtualisation company VMware, left the company on Tuesday. The company issued adverse revenue news on the same day. VMware shares subsequently fell by $13 (£7) to $24 on the New York Stock Exchange. The company announced on Tuesday that it had "made a change in the leadership of the company" and that Greene [pictured] was to be replaced by Paul Maritz as president and chief executive "effective immediately". Maritz was also appointed to the VMware board of directors. "As one of the founders and the leader of VMware, Diane guided the creation and development of a company that is changing the way that people think about computing. The board thanks her for her considerable contributions to VMware and wishes her every success in the future," said Joe Tucci, chief executive of VMware's parent company, EMC, and chairman of VMware's board of directors. Greene had been on a one-year contract with VMware, signed just before its successful IPO in August 2007. Maritz is best known for his time at Microsoft, from which he retired in 2000, after 14 years with the company. During that period, Maritz managed the development and marketing of some of the company's major products, including such major releases as Windows 95 and Windows NT. After leaving Microsoft, Maritz founded Pi Corporation, a start-up software company focused on cloud computing. "Paul Maritz will be the man steering the [VMware] ship, and I wonder whether his experience in the cloud-computing space will impact the direction the company moves in," said Serguei Beloussov, chief executive of virtualisation company Parallels. "We see the cloud model, including software as a service and hosting, playing a prominent role in the future of IT, and virtualisation will help enable this evolution. There is clear user demand for software to be offered in this way, so it will be interesting to see whether Paul focuses on this opportunity, shifting from selling primarily to the enterprise datacentre to targeting service providers," Beloussov added. In the last paragraph of the statement announcing Greene's departure, VMware said that, while the company was "not updating guidance for Q2", it expected "revenues for the full year of 2008 will be modestly below the previous guidance of 50 percent growth over 2007".