rzcbpksn

Scientists have invented an self-adaptive material that heals itself and bounces back from extraordinary compression which may be useful for tissue engineering or lightweight structural applications.Scientists have invented an self-adaptive material that heals itself and bounces back from extraordinary compression which may be useful for tissue engineering or lightweight structural applications.The material created by researchers at Rice University in Texas, US, combines self-healing and reversible self-stiffening properties.Called SAC (self-adaptive composite), the material consists of what amounts to sticky, micron-scale rubber balls that form a solid matrix. The researchers made SAC by mixing two polymers and a solvent that evaporates when heated, leaving a porous mass of gooey spheres.When cracked, the matrix quickly heals, over and over. 

Like a sponge, it returns to its original form after compression.Researchers suggest that SAC may be a useful biocompatible material for tissue engineering or a lightweight, defect-tolerant structural component.“Other ‘self-healing’ materials encapsulate liquid in solid shells that leak their healing contents when cracked. Those are very cool, but we wanted to introduce more flexibility,” said Pei Dong from Rice University.“We wanted a biomimetic material that could change itself, or its inner structure, to adapt to external stimulation and thought introducing more liquid would be a way. But we wanted the liquid to be stable instead of flowing everywhere,” said Dong.In SAC, tiny spheres of polyvinylidene fluoride (PVDF) encapsulate much of the liquid. The viscous polydimethylsiloxane (PDMS) further coats the entire surface. The spheres are extremely resilient as their thin shells deform easily.Their liquid contents enhance their viscoelasticity, a measure of their ability to absorb the strain and return to their original state, while the coatings keep the spheres together. 

The spheres also have the freedom to slide past each other when compressed, but remain attached.“The sample does not give you the impression that it contains any liquid. That is very different from a gel,” said Lou.“This is not really squishy; it is more like a sugar cube that you can compress quite a lot. The nice thing is that it recovers,” Lou added.Making SAC is simple, and the process can be tuned - a little more liquid or a little more solid - to regulate the product’s mechanical behaviour, researchers said.The polymer components begin as powder and viscous liquid. With the addition of a solvent and controlled heating, the PDMS stabilises into solid spheres that provide the reconfigurable internal structure.In tests, scientists found a maximum of 683 per cent increase in the material’s storage modulus — a size-independent parametre used to characterise self-stiffening behaviour. This is much larger than that reported for solid composites and other materials, researchers said. The findings were published in the journal ACS Applied Materials and Interfaces.

In a bid to give a boost to the “Make In India” campaign, minister for railways Suresh Prabhu is seeking to create a scientific and technological collaboration forum among major government technical.In a bid to give a boost to the “Make In India” campaign, minister for railways Suresh Prabhu is seeking to create a scientific and technological collaboration forum among major government technical and scientific agencies. The forum will work for the development of special material and technologies for improving railway rolling stock for providing safer, efficient and economical services. “The aim is to reduce railways’ dependence on other countries and give an impetus to creation of new technologies within India by creating an organised synergy between major government bodies in the field of scientific and technological research and production. 

This will help in developing systems for Indian Railways which are best suited to the country’s local conditions and needs,” said a senior official. He said that the forum would create a constantly-evolving rolling stock technology development process to create exportable products like coaches, locomotives, wagons, cranes, special vehicles. “As a first step in this direction, the ministry of railways convened a round-table session on Monday with the heads of ISRO, CSIR, DRDO, RDSO, department of science and technology and defence production. The meeting was chaired by Union minister of state Manoj Sinha,” said the official. The Railways has sought collaboration in areas of structural material, paneling material for coaches, germicidal and wear resistant furnishing material, coating and special paints with better cleaning properties and pest control capability, noise and thermal insulation material. https://inalsacto.siterubix.com/what-to-pay-attention-to-when-using-chain-saws-in-garden-tools%ef%bc%9f/

It has also sought to work on technology for fog vision, embedded systems for onboard condition monitoring of rolling stock, facial and gesture recognition software for security cameras on trains, solar heat engines.The DRDO made a detailed presentation about special material developed by them for use in defense and space applications which included special high strength alloys of steel and aluminium. Also, special technologies for developing fog vision and for detection of obstructions on track using laser based imaging systems were shared.

Reliance in its latest annual report said it has developed capabilities for 3D printing of wide-range of plastic and metals products. Reliance Industries is investing in setting up India's first carbon fibre manufacturing unit to cater to aerospace and defence needs, the company said in its annual report.Reliance Industries is investing in setting up Indias first carbon fibre manufacturing unit to cater to aerospace and defence needs, the company said in its annual report.The owner of worlds largest oil refining complex will also make low-cost and high-volume composite products like modular toilets, homes and composites for windmill blades and rotor blades.

Without giving investment details, Reliance in its latest annual report said it has developed capabilities for 3D printing of wide-range of plastic and metals products.Reliance is developing new business verticals in the petrochemicals business to capture Rs 30,000 crore composites market and has plans to produce graphene, enhanced plastics and elastomers, fibre reinforced composites which can replace steel. A composite is an engineered material made from two or more ingredients with significantly differing properties, either physical or chemical.One of the most common forms of composite in use today is carbon fibre. It is made by heating lengths of rayon, pitch or other types of fibre to extremely high temperatures in an oxygen-deprived oven. The resultant rayon strands are spun into a thread, then woven into sheets and mixed with hardening resins to form the various components needed."RIL is investing in Indias first and largest carbon fibre production line with its own technology - to cater to Indias aerospace and defence needs as well as the specialty industrial applications," it said.

It had last year acquired the assets of Kemrock Industries to enter the composites business and is focusing on thermoset composites such as glass and carbon Fibre-Reinforced Polymers (FRPs)."The ability to deliver exceptional strength (similar to or better than steel) at a significantly lower weight is a critical performance attribute of FRPs. Additionally, FRPs can withstand harsh weather, have a long life with minimal maintenance, are corrosion resistant and can be moulded into any shape," it said.Composites are used in a wide range of markets and applications: industrial, railways, renewable energy, defence and aerospace. "RIL expects the newly launched Reliance Composites Solutions (RCS) business to be the No. 1 composites player in India," the company said.

Stating that it will focus on design and specifications driven markets and applications that have the potential to grant better returns, it said the focus areas include wind mill blades and parts for railways and metros, which have exacting standards of performance and safety (especially fire retardant).Also on the radar are carbon wraps to rehabilitate/refurbish Indias old infrastructure - bridges, buildings (for improved seismic performance) and pipes."RCS will design and administer low-cost and high-volume products such as modular toilets and homes to support the Swachh Bharat Mission, disaster relief measures and Housing for All programmes initiated by the Indian Government," the annual report said.RIL said industrial 3D printing (especially with metal) is reaching an inflection point and the company has developed the capabilities to design and print a wide range of products using 3D printing technology - in both plastic and metal - from prototypes to functional parts.

Instead of building with bolts and rivets, architects may one day design skyscrapers held together with glue.Instead of building with bolts and rivets, architects may one day design skyscrapers held together with glue. Architect Greg Lynn believes that high-tech adhesives and lightweight materials will revolutionise architecture, strengthening skyscrapers and speeding up their construction process. “Mechanical assembly is already waning in many industries,” Lynn told New Scientist. 

“An airplane now is glued together. A car now is glued together. Even a lot of appliances are being glued together.” According to Lynn, non-metallic composite materials like carbon fibre and fibreglass are lighter and stronger than many traditional materials. These composite materials, Lynn claims, could be glued together to build bridges and towering buildings.Dezeen explains that, in recent years, many buildings have been constructed using at least some composite materials. The new exterior of the San Francisco Museum of Modern Art and the roof of the theatre at Apple Campus 2 in Cupertino were both built using composite materials, for instance. However, using composite materials is just the first step. Architects are still figuring out how to safely work adhesives into their designs. 

New Scientist explains that though adhesives are strong, they can also be flammable, and were recently blamed for a hotel fire in Dubai. The current aim is to develop safe and effective strategies for working with adhesives. Lynn believes the strength of the material far outweighs the dangers. “The use of composites and adhesives could revolutionise engineering in every building type,” he told New Scientist. “If you can take 30 per cent of the weight out of the upper section of a building by using lightweight composite materials, you could end up saving between 70 and 80 per cent of the material in the entire structure.”

The red carpet has always introduced us to new and unique fashion trends. In the recent years, techno-inspired fashion is at its peak. Kim Kardashian and Kanye West.Are you bored of fast fashion? If you want to be sassy then, here’s a new trend – Fashion with Technology. Garments now have been designed with metallic plates, LED lights, batteries, wire and motorised garments.

Fashion stylists, designers and retailers have to think out of the box to create new fashion trends to make a mark.Paps Lover Dress: The name says it all really. Embedded with 62 LED lights that are sensitive to camera flashes, this dress lights up when it is photographed. This is a great way to remind the paparazzi who the real star is… the dress!Smoke dress: At first glance, this dress will intrigue you merely by the flirty sparks. In essence, it is operated by a micro-controller-based, battery-driven sensory system that can detect when people are near you and releases smoke if they invade your personal space. How’s that for a warning sign for people to stay away?

This coat was designed by an Austrian architecture company which you can use to disappear. Nope, it is not Harry Potter’s Clock of Invisibility. What happens is that the metallised fabrics block radio waves and makes the wearer untrackable from modern devices. It works great in a sense that your credit card information will be safe but this also means that you won’t be contactable via phone.Hello Weather Garment: How about clothing that responds to the weather around you? This jacket is treated with liquid crystal to make it respond to friction. This is done by combining textiles and ink technology. A gust of wind or a ray of sunshine would have an effect on this beautiful piece of clothingEmotion Sensing Dress: This  gives us a look into the future of fashion where clothes does not merely to protect, but also reflect our emotions making it a forward form of communication. The first layer of the dress contains biometric sensors which projects emotion which comes in the form of colourful lights onto the second layer, the outer textile. It is both stunning and functional.