Saturday, January 14, 2012

Samsung?s TV Content Plan: Renewed Focus On Apps And 3D

samsung_logoSamsung has already pulled back the curtains on their new flagship Smart TV, but really -- what good is a TV without content? To that end, Samsung Consumer Electronics President Tim Baxter took a few moments to talk about Samsung's new content initiatives.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/6aTU4Z25-uk/

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Friday, January 13, 2012

Stephanopoulos Asked Tough Questions at Debate, Not Unfair Ones (ContributorNetwork)

COMMENTARY | ABC News commentator George Stephanopoulos is a punching bag for some Republicans today after a less than objective performance as moderator at Saturday night's Republican debate in New Hampshire. In reality, Stephanopoulos was just being his own true self -- and I kind of like that.

The Daily Caller opined that Mitt Romney was the victim of some hard questions that Stephanopoulos failed to justify during his questioning. Granted, the question about net job creation during Romney's administration of Massachusetts was baseless, it did present an opportunity for Romney to respond and, of course, he did. In fact, I liked Romney answer because it demonstrated the man is not afraid to challenge incomplete assumptions -- even from the media.

Stephanopoulos then engaged Texas Congressman Ron Paul about racial statements produced under his name more than 20 years ago. Personally, I find digging stuff up like that to be a bit desperate and whether Paul has answered it before or not is irrelevant.

Just last month Paul stormed off set during an interview with CNN's Gloria Borger when she asked a similar question. He may not want to discuss it anymore, but that isn't going to stop journalists from asking the questions. Part of running for president including having to answer questions a candidate may not want to answer.

I'd prefer to see substance to any political debate. I'm not in fair of rehashing decades old issues or micro-examining statistics during a debate. It's not fair to the candidate who would not have access to specific statistical data at the moment nor enough time to accurately answer the question or allegation.

Overall, Stephanopoulos was just being Stephanopoulos. He's commentary (and reporting) often have a slight bias to it and every one of the candidates standing on stage last night knew that all too well.

Source: http://us.rd.yahoo.com/dailynews/rss/politicsopinion/*http%3A//news.yahoo.com/s/ac/20120108/cm_ac/10808003_stephanopoulos_asked_tough_questions_at_debate_not_unfair_ones

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Suit claims Symantec scares consumers on PC health (Reuters)

(Reuters) ? A lawsuit filed against Symantec Corp claims that the software maker seeks to persuade consumers to buy its products by scaring them with misleading information about the health of their computers.

James Gross, a resident of the state of Washington, filed the suit in District Court in San Jose, California on Tuesday, according to his attorneys.

A copy of the complaint provided to Reuters by Gross's attorneys alleges that Symantec distributes trial versions of its products that scan a consumer's system, then invariably report that harmful errors, privacy risks and other problems exists on the PC, regardless of the real condition of the machine.

A Symantec representative could not immediately comment on the lawsuit, which seeks class-action status.

The company uses that scanning software to market Norton Utilities, PC Tools Registry Mechanic and PC Tools Performance Toolkit software, according to the complaint.

Norton Utilities and PC Tools are products that Symantec says help improve the performance of PCs and keep online activities private.

"The software is falsely informing the consumer that errors are high priority and in addition it is falsely informing the consumer that their overall system health and privacy health is low," said Chandler Givens, an attorney with Edelson McGuire LLP, the firm that filed the suit on behalf of Gross.

He said that his firm tested other Symantec products, but was only able to find problems with the three mentioned in the complaint.

Symantec, the top maker of consumer anti-virus software, is the maker of Norton 360, Norton Internet Security and Norton AntiVirus software.

Sales of all Symantec's consumer products -- including PC Tools and Norton Utilities -- rose 4 percent to $2 billion in its most-recent fiscal year.

The suit describes Norton Utilities and PC Tools as forms of "scareware," a common type of malicious software that causes pop-up messages to appear on computers telling users that they are infected with a virus.

"The truth, however, is that the scareware does not actually perform any meaningful evaluation of the user's computer system, or of the supposed 'errors' detected by the software," the complaint claims. "The scareware does not, and cannot, actually perform the valuable tasks represented by Symantec through its websites, advertising, and in-software display screens."

(Reporting By Jim Finkle; Editing by Phil Berlowitz; Additional reporting by Dan Levine in San Francisco)

Source: http://us.rd.yahoo.com/dailynews/rss/software/*http%3A//news.yahoo.com/s/nm/20120110/tc_nm/us_symantec_lawsuit

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Thursday, January 12, 2012

World Map of All Wars and Conflicts Happening In 2012 [War]

Aviation Week's Defense Technology International has compiled a summary of all the current and probable conflicts of 2012, so I made this map*. The only conflict that is not in this map is the incoming Obama-Romney nuclear war. More »


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/60j3Hf7P3q0/all-the-worlds-wars-and-conflicts-coming-in-2012

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Polymer nanocomposites drive opportunities in the automotive sector

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...more nanotechnology articles
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Posted: January xx, 2012
Polymer nanocomposites drive opportunities in the automotive sector
(Nanowerk Spotlight) Polymer nanocomposites represent a new class of multiphase materials containing dispersion of nano-sized filler materials such as nanoparticles, nanoclays, nanotubes, nanofibers etc. within the polymer matrices. Owing to their nanoscale size features and very high surface-to-volume ratios, they possess unique combination of multifunctional properties not shared by their more conventional composite counterparts reinforced with micro-sized fillers. These multifunctional nanocomposites not only exhibit excellent mechanical properties, but also display outstanding combination of optical, electrical, thermal, magnetic and other physico-chemical properties. It is believed that the molecular level interactions between the nanoparticles and polymer matrices along with the presence of very high nanoparticle-polymer interfacial area play a major role in influencing the physical and mechanical properties of nanocomposites. The major development in this field has occurred over the last two decades.
This article summarizes the progress, products outlook, advantages, and limitations of nanocomposites in the automotive industry.
Nanocomposites are an emerging class of polymeric materials exhibiting excellent mechanical properties, enhanced modulus and dimensional stability, flame retardancy, improved scratch and mar resistance, superior thermal and processing properties, reduced warpage of components and enhanced impact resistance making them suitable to replace metals in automotive and other applications1. The key drivers for the use of polymer nanocomposite-enabled parts in the automotive industry are reduction in vehicle's weight, improved engine efficiency (fuel saving), reduction in CO2 emissions and superior performance (greater safety, increased comfort and better driveability). Fig. 1 illustrates the usage of polymer nanocomposites parts.
Illustration of the usage of polymer nanocomposites parts
Fig 1: Illustration of the usage of polymer nanocomposites parts.
The commercialization of polymer nanocomposites started in 1991 when Toyota Motor Co. first introduced nylon-6/clay nanocomposites in the market to produce timing belt covers as a part of the engine for their Toyota Camry cars, in collaboration with Ube industries in 19912. At about the same period, Unitika Co. of Japan introduced nylon-6 nanocomposite for engine covers on Mitsubishi GDI engines3 manufactured by injection moulding, the product is said to offer a 20% weight reduction and excellent surface finish. In 2002, General Motors launched a step-assist automotive component made of polyolefin reinforced with 3% nanoclays, in collaboration with Basell (now LyondellBasell Industries) for GM's Safari and Chevrolet Astro vans, followed by the application of these nanocomposites in the doors of Chevrolet Impalas4,5.
The real surge in the commercialization of nanocomposites production has occurred over the last ten years. In 2009, a one-piece compression moulded rear floor assembly was made by General Motor (GM) for their Pontiac Solace using nano-enhanced Sheet Moulding Compounds (SMCs) developed by Molded Fiber Glass Companies (MFG), Ohio. This technology is also in use on GM's Chevrolet Corvette Coupe and Corvette ZO6. The nano-filled SMCs exhibit significantly lower density than conventional SMCs resulting in improved fuel efficiency6. The automotive industry can benefit from polymer nanocomposites in several applications such as engines and powertrain, suspension and breaking systems, exhaust systems and catalytic converters, frames and body parts, paints and coatings, lubrication, tires, and electric and electronic equipment.
In the latter part of the 1980s and the beginning of the 1990s, a research team from Toyota Central Research Development Laboratories (TCRDL) in Japan reported work on a Nylon-6/clay nanocomposite and disclosed improved methods for producing nylon-6/ clay nanocomposites using in situ polymerization similar to the Unichika process7-10.
The research findings demonstrated a significant improvement in a wide range of physico-mechanical properties by reinforcing polymers with clay on the nanometer scale 11,12. The Toyota research team also reported various other types of clay nanocomposites based on polymers such as polystyrene, acrylic, polyimides, epoxy resin, and elastomers using a similar approach13-17. Since then, extensive research in nanocomposites field has been carried out worldwide. Fig. 2 shows timeline for the commercialization of products by automotive players.
Timeline for the commercialization of nanocomposite products by automotive companies
Fig. 2: Timeline for the commercialization of products by automotive players.
Among nanomaterials, nanoclays are the most commonly used commercial additive for the preparation of nanocomposites, accounting for nearly 80% of the volume used. Carbon nanofibers, carbon nanotubes (mainly MWCNTs), and Polyhedral Oligomeric Silsesquioxanes (POSS) are also being used commercially in nanocomposites, gaining ground fast with improvements in cost/performance and processability characteristics.
The largest demand for nanoclays in nanocomposites is primarily driven by the need to meet the customers' (OEMs/tier I/II/III) cost expectations and performance of end-use parts, as nanoclays are less expensive ($6 to $8/kg) than other nanomaterials and exhibit improved balance of stiffness and toughness, excellent mechanical and barrier properties, enhanced heat deflection temperature without loss in elongation, improved colorability and improved scratch and mar resistance.
Nanoclays also offer a reduction in relative heat release, excellent dispersion and exfoliation, excellent flame retardant synergy, and reduced weight. Polyolefin is commonly used as host polymer and thermoplastics such as polyamide (nylon), Polyphenylene Sulfide (PPS), Polyetheretherketone (PEEK), Polyethylene terephthalate (PET), polycarbonate, thermosets such as epoxy, and thermoplastic elastomers such as butadiene-styrene diblock copolymer are also used in more demanding automotive applications. The use of thermoplastics as a matrix material in nanocomposites has been growing steadily, especially in automotive applications, largely due to the material's low cost, high performance, low density, longer shelf life, easy dispersion and processing with nanomaterials, ability to regrind, and recyclability. Thermoplastics also offer enhanced mechanical, thermal, electrical and barrier properties, excellent fracture toughness over thermosets as well as the ability to be easily joined by mechanical joining and welding techniques.
Organoclays are most widely used as a nanofiller, while carbon nanotubes are also gaining acceptance. The two major producers are Southern Clay Products, Inc. with its Cloisite products line and Nanocor Inc. with its Nanomer products. Carbon nanotubes impart electrical and thermal conductivity, which allows electrostatic painting and when blended with nylon, to protect against static electricity in the fuel system. However, their commercial development is hindered by their high price tags ($20/gram), although they are available in master batches (containing 15% to 20% nanotubes) for about $50-60/lbs. Table 1 shows some examples of commercially available nanocomposites and nanomaterials.
Raw Materials/ Nanointermediates Manufacturers for nanocomposites
Table 1: Raw Materials/ Nanointermediates Manufacturers.
Polymer nanocomposites are an emerging technology in the automotive industry and have attracted considerable attention worldwide. The commercial success of nano-enabled products for the automotive market has been slow and used currently only in niche applications such as external body parts, interior and under-bonnet parts, coating and fuel system components, etc., but is expected to be a major growth area in the coming era.
The usage of polymer nanocomposites continues to grow in the automotive sector, thanks to their exclusive mechanical, chemical, thermal, electrical and barrier properties and contribution to fire retardancy. A market research report, "Nanocomposites-A Global Strategic Business Report", (Electronics.ca Publications) states that world nanocomposites market is forecast to reach 1.3 billion pounds (lbs) by the year 2015, and growth in the nanocomposites market will be driven by robust demand outlook in the emerging application possibilities in automotive market18. By 2011, the automotive sector is expected to become the third-largest market for polymer nanocomposite applications, with over 15% of the market19. According to a recent market report released by Frost & Sullivan, it is expected that carbon nanotubes will penetrate about 3.6% within automotive composites. If 1% CNT's are loaded in these materials, it is estimated that CNT market for auto composites would be $35.52 million20. It is interesting to note that the projected market share in 2015 of automobile tires is 23% of the total nanotech market in the automobile sector, and it is fully dedicated to the field of nanocomposites.
Elastomeric nanocomposites are also gaining momentum in automotive industry especially for tires application due to their lower rolling resistance, lower weight and superior performance in terms of fuel saving. The key drivers for these materials are growing demand for fuel efficiency, strict automotive standards for safety, enhanced durability and noise reduction. For example, elastomer replacement of traditional inner-liners with nanocomposite inner-liners reduces permeability by 50 % and thus results in a decrease of approximately 4 lbs per truck and also improvement in fuel efficiency (2%). Major automotive tire producers involved in the development and manufacturing activities pertaining to nanocomposites are Yokohama Tyre Corp., Japan, Pirelli S.p.A, Italy, The Goodyear Tyre & Rubber Co., USA, Continental AG, Germany, InMat Inc., USA etc. Elastomeric nanocomposites-enabled tire models include Goodyear UltraGrip Ice+, Continental EcoContact5, Michelin Energy Saver, and Pirelli Cinturato P1.
Lanxess AG, Germany, Evonik Degussa GmbH, Germany, Cobot Corp., USA, Nanocor, USA, FCC Inc., China, Elementis Specialities plc, UK, Tokuyam, Japan and Rhodia, France are some of the leading producers of nanofillers.
Green nanocomposites or biodegradable nanocomposites (cellulosic bio-plastic reinforced with clay) are the next generation of materials for automotive applications. They have the potential to replace or substitute existing petroleum derived non biodegradable Thermoplastic PolyOlefin (TPO)-enabled nanocomposites.
Key Benefits and Challenges
The advantage of nanocomposites over conventional composites is that their mechanical, electrical, thermal, barrier and chemical properties such as increased tensile strength, improved heat deflection temperature, flame retardancy, etc. can be achieved with typically 3-5 wt.% loading of the nanomaterials such as clays, nanotubes and nanofibers while the latter require a high content of the inorganic fillers from 10 wt. % to as much as 50 wt.% in general, to impart the desired properties.
Another advantage of nanocomposites is that the strength, shrinkage, warpage, viscosity and optical properties of the polymer matrix are not significantly affected. The enhanced properties are attributed to the structure and morphology of the nanocomposite, as they (clays/polymer) contain organically treated clays such as hectorite, montmorillonite, and synthetic mica as well as nanotubes (carbon nanotubes, halloysite nanotubes). These nanomaterials have a large aspect ratio (1000:1) and each one is approximately 1 nm thick and hundreds or thousands of these layers are stacked together with weak Van der Waals forces to form a clay particle, resulting in subsequent exfoliation in which the individual layers are peeled apart and then dispersed throughout the polymer matrix. The excellent degree of exfoliation, which results in smaller particle sizes and provides the greater surface area to interact with the host polymer, results in improved performance. CNTs-enabled nanocomposites are also receiving attention as a mechanical reinforcement and electrically conductive additive for automotive fuel system line components requiring electrical conductivity.
However, there are still many limitations and challenges for nanocomposites production. These include:
  • Processing: Compatibility, dispersion and exfoliation between nanomaterials and polymer matrices. Only a limited number of plastic matrices (mostly thermoplastics) are compatible with nanoclays/nanotubes/nanofibers as intercalation of clays with the precursor of a polymer can change the functionality of the polymer and inhibit its properties.
  • Cost: The production of nanocomposites on a commercial scale at viable prices, as polymer matrix price depends on crude oil prices and CNTs price is also high.
  • Consistency and reliability in volume production: It is possible to get consistency and reliability in volume production materials to a great extent. However, particle size distribution and control in volume manufacturing is not so easy.
  • High lead time: Commercializing the end-use products would take a longer time, mainly due to stringent approval and OEMs acceptance.
  • Oxidative and thermal instability of nanoclays: Commonly used organoclays are thermally unstable due to exchange of metal cations in clay galleries with organic ammonium salts and can degrade at temperatures as low as 170?C. It is clear that such organoclays are not suitable for most engineering plastics that are fabricated by melt processing technology.
  • Polymer nanocomposites can be manufactured through a wide variety of different routes. In essence, there are three generic routes to make nanocomposites: in situ polymerization, solution induced intercalation, and melt processing. Polymer nanocomposites based on melt blending of an organoclay and a thermoplastic matrix have end-use properties directly controlled or influenced by the state of dispersion and exfoliation of the clays (chemically modified with surface treatments), and thus the resulting nanostructure. Therefore, it is of immense importance to achieve perfect intercalation and exfoliation of these systems. Table 2 deals with growth drivers and challenges related to market dynamics.
    growth drivers and challenges for nanocomposites
    Table 2: Growth Drivers & Challenges
    Products Outlook
    There have been significant research and development activities in nanocomposites for the automotive industry, with nanocomposites finding commercial applications since 1991 in bumpers, step-assists, gas tanks, fuel pumps, interior and under-bonnet parts, body panels, electrical parts and appliances, power tool housings, packaging and building components, shock absorbers, coatings, lubricants and coolants. In addition, nanocomposites offer a variety of functions in automotive end-use parts such as structural plastic parts that exhibit higher mechanical performance with reduced weight, tires reinforced with nanoparticles for better abrasion resistance and improved gas permeability, fuel-borne catalysts for soot prevention in particulate filters, car body coatings for greater scratch resistance and improved gloss, and anti-fog coatings for headlights and windshields.
    The performance-to-cost ratio has been a major hurdle for gaining broader market acceptance as nanocomposites should meet the OEMs'/molders'/customers' cost expectations. Some early commercialized products have lapsed for cost reasons; damages include an automotive timing-belt cover based on nylon-6/clay nanocomposites from Japan's Unitika and an automotive mirror housing of conductive Polyphenylene Oxide (PPO)/nylon blends nanocomposites from GE Plastics. However, tremendous effort has been put forth by OEMs and molders to commercialize more volume of nanocomposites in automotive components.
    Today, demand for thermoplastic polyolefin/polypropylene nanocomposites has moved beyond nylon 6/clay nanocomposites, mainly because of their low cost and enhanced physico-mechanical properties. In the past, the automotive industry was more inclined towards using nylon 6/clay nanocomposites for under-the-hood applications, where higher heat deflection temperature, enhanced stiffness, and light weight were the goals. The performance-to-cost ratio was a main constraint which halted the rapid growth of polymer nanocomposites. However, nylon 6/clay nanocomposites (more costly) are still used for under the hood applications, fuel lines and fuel system components.
    Future Development and Directions
    It is quite evident from the foregoing discussion that polymer nanocomposites are finding many applications in the automotive industry, and the market for these materials is on the path of growth and expansion. The OEMs/Tier I, Tier II, Tier III, raw materials/nanointermediates manufacturers, researchers and technologists are realizing that other than clays, nanomaterials like graphene, carbon nanofibers, nanofoams, multiscale hybrid reinforcement and graphene-enabled rubber nanocomposites could drive the market dynamics.
    The price and performance advantages of graphene are challenging carbon nanotubes in polymer nanocomposites applications due to its intrinsic properties and it is predicted that a single, defect-free graphene platelet could have an intrinsic tensile strength higher than that of any other material21.
    In June 2010, a U.S. Patent was granted to The Trustees of Princeton University for functional graphene-rubber nanocomposites22, which can be produced at a much lower cost than carbon nanotubes and exhibits excellent mechanical strength, superior toughness, higher thermal stability and electrical conductivity. This graphene-rubber nanocomposite can be employed in all the areas for gas barrier applications including tires and packaging.
    A similar patent was granted in 2011, for a composite material of nanoscale graphene and an elastomer for vehicle tire application23. The multiscale hybrid reinforcement is another potential polymer nanocomposite material for the automotive industry due to its enhanced load transfer at the reinforcement/matrix interface, i.e. by tailoring the interfacial shear strength, which is made of micro sized carbon-fibre yarns and fabrics coated with carbon nanostructures. The high performance racing cars and high-end sports cars require excellent properties such as structural stiffness, heat shielding, impact and compressive strength, and many others. The polymer nanocomposite foams could be the right choice of material as they exhibit improved thermal insulation properties, superior peak load-bearing capacity, higher threshold loads and impact loads.
    The various stakeholders in the automotive value chain need to take note of polymer nanocomposites technology and development, which has a growing market globally, but the higher cost of the end-use components is a shortcoming which needs to be overcome.
    Conclusion
    The past few years have seen remarkable technological advances in polymer nanocomposites for the automotive market, particularly with respect to the thermoplastic polyolefin and polyamide nanocomposites synthesis and their commercialization as well. These breakthroughs have not only solved some fundamental problems (exfoliation & dispersion) in making the polymer nanocomposites, but have also changed their cost/performance structure and market demand. Thus, for external body parts, interior and under-bonnet parts, coating, fuel lines and fuel system components applications, nanocomposites have gained tremendous acceptance by the OEMs and molders in the automotive market. The first industrial production of nanocomposites in the automotive industry occurred in 1991 with the production of timing belt covers as part of the engine for Toyota Camry cars.
    The growth in activity surrounding nanocomposites continues unabated as more R&D funds are poured in by the funding agencies, venture capitalists and companies as they look to exploit the expanding range of novel properties that are being discovered. To give an example, in Europe, the automotive industry invests over 5% of its annual turnover in R&D and the major focus is on developing better coatings and paints, and stronger, more durable end-use parts. The use of polymer nanocomposites in the automotive market is thus set to escalate over the next ten years.
    References
    1. S. Komarnenei, "Nanocomposites" J. Mater. Chem., 2 (1992) 1219-1230
    2. www.moldedfiberglass.com/library/news/newsCW8-09.pdf
    3. L.W Carter, J. G Hendricks, D. S Bolley, "Elastomer Reinforced with a Modified Clay" US Patent No. 2,531,396, November 28, 1950 (Filed on March 29, 1947), Assignee: National Lead Co.
    4. P. G. Nahin and P. S. Backlund, "Organoclay-Polyolefin Compositions", US Patent No. 3,084,117, April 2, 1963 ( Filed on April 4, 1961), Assignee: Union Oil Co.
    5. S. Fujiwara, T. Sakamoto, "Method for Manufacturing a Clay/Polyamide Composite", Japanese Kokai Patent Application No.109,998 (1976), Assignee: Unichika K.K., Japan
    6. Y. Fukushima and S. Inagaki, "Synthesis of an Intercalated Compound of Montmorillonite and 6-Polyamide", Journal of Inclusion Phenomena, 5 (1987) 473-482
    7. Y. Kojima et al., "Sorption of Water in Nylon 6-clay Hybrid", Journal of Applied Polymer Science, 4 (1993) 1259-1264
    8. A. Usuki, Y. Kojima, M. Kawasumi, A. Okada, Y. Fukushima, T. Kurauch and O. Kamigaito, "Synthesis of Nylon 6?Clay Hybrid", Journal of Materials Research, 8 (1993) 1179-1184
    9. A. Usuki, T. Mizutani, Y. Fukushima, M. Fujimoto, K. Fukumori, Y. Kojima , N.Sato, T. Kurauch and O. Kamigaito, "Composite Material containing a Layered Silicate", US Patent no 4,889,885, December 26, 1989 (Filed on March 4, 1988), Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho, Japan
    10. A. Okada, K. Fukumori, A. Usuki, Y. Kojima, N. Sato, T. Kurauchi and O. Kamigaito,"Rubber-Clay Hybrid-Synthesis and Properties", ACS Polym Preprints, 32 (1991) 540-541
    11. A. Okada, A. Usuki, "The Chemistry of Ppolymer-Clay Hybrids", Materials Science and Engineering, C 3 (1995) 109-115
    12. K. Yano K. Usuki A. Okada and A. T. Kurauch, "Polyimide Composite Material and Process for Producing the Same" US Patent No. 5,164,46, Nov.17, 1992 (Filed on May 30, 1991), Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho, Japan
    13. K. Yano , A. Usuki and A. Okada, " Synthesis and Properties of Polyimide-Clay Hybrid Films", Journal of Applied Polymer Science: Part A, Polym Chem., 35 (1997) 2289-2294
    14. F. Gao, "Clay/Polymer Composites:The Story", Materials Today, 7(2004) 50-55
    15. C. Edser, "Auto Applications of Drive Commercialization of Nanocomposites", Plastic Additives Compounding 4 (2002) 30-33
    16. T. Kurauchi, A. Okada, T. Nomura, T. Nishio, S. Saegusa and R. Deguchi, "Nylon 6-Clay Hybrid - Synthesis, Properties and Application to Automotive Timing Belt Cover", SAE Technical Paper Ser, 910584 (1991)
    17. H.Cox, et al., "Nanocomposite Systems for Automotive Applications", Presented at 4th World Congress in Nanocomposites, EMC, San Francisco, 1-3 September 2004
    18. "Nanocomposites-A Global Strategic Business Report", March 2011, published by Electronics.ca, http://www.electronics.ca/presscenter/articles/1404/1/Global- Nanocomposites-Market-to-Reach-13-Billion-Pounds--by-2015/Page1.html
    19. "Nanocomposites, Nanoparticles, Nanoclays, and Nanotubes", June 2006, published by BCC Research, http://www.bccresearch.com/report/NAN021C.html
    20. "Potential Market for Carbon Nanomaterials' Applications", February 28, 2011, published by Frost & Sullivan, , www.nist.gov/cnst/upload/Valenti-NIST.pdf
    21. Q.Z. Zhao, M.B. Nardelli, J. Bernholc, "Ultimate Strength of Carbon nanotubes: A Theoretical Study", Phys. Rev. B ., 65 (2002) 144105
    22. R. Prud'homme, B. Ozbas, I. Aksay, R. Register, and D. Adamson, "Functional Graphene?Rubber Nanocomposites", U.S. Patent 7,745,528, June 29, 2010 (Filed on October 06, 2006), Assignee : The Trustees of Princeton University
    23. Aruna Zhamu, Bor Z. Jang "Pristine Nano Graphene-Modified Tires", US Patent 7,999,027, August 16, 2011 (Filed on August 20, 2009), Assignee: Nanotek Instruments, Inc.
    Contributed by Vivek Patel and Dr. Yashwant Mahajan, CKMNT. For more information, interested readers may please contact either Vivek Patel at vivepatel@gmail.com or Yashwant Mahajan at mahajanyrm@gmail.com and obtain a copy of the full-text article in pdf format. This article has also been published in the October 2011 Issue of Nanotech Insights.
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    Wednesday, January 11, 2012

    ULMA and Tecnalia conduct crop testing with a special photovoltaic panel for greenhouses

    ULMA and Tecnalia conduct crop testing with a special photovoltaic panel for greenhouses [ Back to EurekAlert! ] Public release date: 11-Jan-2012
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    Contact: Irati Kortabitarte
    i.kortabitarte@elhuyar.com
    34-943-363-040
    Elhuyar Fundazioa

    This release is available in Spanish.

    With the support of the ULMA Group's innovation area, ULMA Agrcola, following the agreement signed with Tecnalia through its Energy Unit, has installed photovoltaic modules on one of its two glass greenhouse units measuring approximately 400 m2.

    The new photovoltaic module developed by the ULMA Agrcola consortium, the innovation area of the ULMA Group, and Tecnalia allows electricity to be generated without the crops being affected by over-shading. Depending on the season of the year, solar radiation can be diverted by taking advantage of the annual oscillation in the height of the sun's trajectory; this is achieved through a lens-based optical system. Without the need for any solar mechanical monitoring, the technology allows the needs imposed by any crop to be met. So during the winter (October-February), the light inside the greenhouse, a key parameter for correct plant development, barely falls. But in summer the optical system diverts solar radiation towards the photovoltaic cells that make up the module, thus achieving a dual aim: to provide the greenhouse with cooling during the critical period of high temperatures and to increase electricity production through the photovoltaic system.

    Right now, tests are being carried out in an ULMA Agrcola greenhouse belonging to the Neiker-Tecnalia R+D centre and located in Derio (Bizkaia, Basque Country). The crops selected for the initial tests are tomato and pepper. These two crops have been selected for the following reasons: they are two of the most common worldwide, they require a very large amount of light, and they are high added-value products within greenhouse agriculture.

    In the tests conducted throughout the summer, the most critical parameters of the crop were measured, like total and PAR radiation, humidity and temperature. In addition, crop quality and production in the photovoltaic module were monitored by comparing them with data obtained under a normal glass roof. Positive results were obtained, and between mid November and the end of March 2012 a winter test is due to be carried out in which the same values will be monitored and from which similar results are expected to emerge. As regards electricity production, the first measures point to a 15% annual improvement over a standard photovoltaic system.

    So the new module allows photovoltaic equipment to coexist with crops. What is more, it acts as an element for the seasonal control of the radiation and interior temperature of the greenhouse, apart from constituting additional support for the farmer's economic activity through the sale and/or private use of the energy obtained.

    The technology developed enables the problems associated with winter over-shading and summer radiation to be avoided in a simple, robust and effective way. Having validated this in the field using ULMA Agrcola greenhouses, the consortium is aiming to have a product ready to be marketed by the second half of 2012.

    ###


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    ULMA and Tecnalia conduct crop testing with a special photovoltaic panel for greenhouses [ Back to EurekAlert! ] Public release date: 11-Jan-2012
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    Contact: Irati Kortabitarte
    i.kortabitarte@elhuyar.com
    34-943-363-040
    Elhuyar Fundazioa

    This release is available in Spanish.

    With the support of the ULMA Group's innovation area, ULMA Agrcola, following the agreement signed with Tecnalia through its Energy Unit, has installed photovoltaic modules on one of its two glass greenhouse units measuring approximately 400 m2.

    The new photovoltaic module developed by the ULMA Agrcola consortium, the innovation area of the ULMA Group, and Tecnalia allows electricity to be generated without the crops being affected by over-shading. Depending on the season of the year, solar radiation can be diverted by taking advantage of the annual oscillation in the height of the sun's trajectory; this is achieved through a lens-based optical system. Without the need for any solar mechanical monitoring, the technology allows the needs imposed by any crop to be met. So during the winter (October-February), the light inside the greenhouse, a key parameter for correct plant development, barely falls. But in summer the optical system diverts solar radiation towards the photovoltaic cells that make up the module, thus achieving a dual aim: to provide the greenhouse with cooling during the critical period of high temperatures and to increase electricity production through the photovoltaic system.

    Right now, tests are being carried out in an ULMA Agrcola greenhouse belonging to the Neiker-Tecnalia R+D centre and located in Derio (Bizkaia, Basque Country). The crops selected for the initial tests are tomato and pepper. These two crops have been selected for the following reasons: they are two of the most common worldwide, they require a very large amount of light, and they are high added-value products within greenhouse agriculture.

    In the tests conducted throughout the summer, the most critical parameters of the crop were measured, like total and PAR radiation, humidity and temperature. In addition, crop quality and production in the photovoltaic module were monitored by comparing them with data obtained under a normal glass roof. Positive results were obtained, and between mid November and the end of March 2012 a winter test is due to be carried out in which the same values will be monitored and from which similar results are expected to emerge. As regards electricity production, the first measures point to a 15% annual improvement over a standard photovoltaic system.

    So the new module allows photovoltaic equipment to coexist with crops. What is more, it acts as an element for the seasonal control of the radiation and interior temperature of the greenhouse, apart from constituting additional support for the farmer's economic activity through the sale and/or private use of the energy obtained.

    The technology developed enables the problems associated with winter over-shading and summer radiation to be avoided in a simple, robust and effective way. Having validated this in the field using ULMA Agrcola greenhouses, the consortium is aiming to have a product ready to be marketed by the second half of 2012.

    ###


    [ Back to EurekAlert! ] [ | E-mail | Share Share ]

    ?


    AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


    Source: http://www.eurekalert.org/pub_releases/2012-01/ef-uat011112.php

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    Tuesday, January 10, 2012

    Save 25% on Mileage Awards on United and Continental to Europe and Africa

    United and Continental are offering up to 25% on award tickets on flights between the US & Europe and the US and Central/Southern Africa. Book by January 16th and fly January 27th ? March 22nd.

    You?ll save 25% off coach saver award seats on Mondays, Tuesdays and Wednesdays and you?ll save 20% off on the other days. If you are using United miles you must fly on United metal; you can fly on Continental metal if you are using Continental miles. Remember, you can freely transfer miles between accounts on each airline.

    Round trip coach tickets to Europe are 45,000 miles round trip off-peak and 48,000 peak; Africa is 60,000 off-peak and 64,000 miles for peak.

    You have to stay a Saturday night, and you can open-jaw if you stay within the same region (ie, Newark to Paris, return Amsterdam to Newark).

    Source: http://feedproxy.google.com/~r/onlinetravelreview/NEGA/~3/Q5fT1wNOUuo/

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