Introducerea celei mai mari fabrici de producere a nanomaterialelor din lume

 Am avut deja mult interes din partea companiilor dintr-o gamă diversă de sectoare. De la asistența medicală, unde nanoparticulele pot fi utilizate în acoperiri pe dispozitive medicale, la țesături îmbunătățite, unde nanomaterialele pot adăuga rezistență și flexibilitate la textile și în electronică tipărită, deoarece putem imprima materiale precum cuprul

Posted: Aug 01, 2016

Introducing the world’s biggest nanomaterial production plant

(Nanowerk News) The European SHYMAN project aims to establish continuous hydrothermal synthesis as the most flexible and sustainable process to create nanomaterials at industrial scale. After demonstrating this potential in the lab, the project has now announced the opening of its first facility in Nottingham.

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‘This new facility opens up a significant amount of new opportunities for us,’ says Professor Ed Lester, Technical Coordinator of Promethean Particles. This spin-out of the University of Nottingham is in charge of operating the new plant, which is expected to produce over 1 000 tonnes of nanomaterials every year. The production cost is lower than that of other facilities and the chosen production method – continuous hydrothermal synthesis – is expected to impact even markets for which sale prices had so far been an obstacle.
‘We have already had a lot of interest from companies in a diverse range of sectors. From healthcare, where nano-particles can be used in coatings on medical devices, to enhanced fabrics, where nano-materials can add strength and flexibility to textiles, and in printed electronics, as we are able to print materials such as copper,’ Prof. Lester continues. Solvay, Fiat, PPG and Repsol are among the major companies already set to benefit from the plant’s products.
To reach these impressive levels of production, the plant notably relies on high pressure triplex plunger pumps manufactured by Cat Pumps. These pumps have helped the 18-strong consortium to overcome engineering issues related to the mixing of the heated fluid and the aqueous metal salt flow, by creating the continuous pressure and fluid flow necessary to achieve continuous production.
Another enabling technology is the Nozzle Reactor, a customised design that uses buoyancy-induced eddies to produce an ‘ideal’ mixing scenario in a pipe-in-pip concentric configuration in which the internal pipe has an open-ended nozzle. This technology allows Promethean Particles to dramatically improve reproducibility and reliability whilst controlling particles properties such as size, composition and shape.
Betting on hydrothermal synthesis
Started in 2012, SHYMAN built upon the observation that hydrothermal synthesis had numerous advantages compared to alternatives: it doesn’t resort to noxious chemicals, uses relatively simple chemistry relying on cheap precursors, allows straightforward downstream processing, can avoid agglomeration and allows for narrow and well-controlled size and shape distribution.
The optimisation of hydrothermal synthesis has been a key objective of the University of Nottingham for the past 14 years, and SHYMAN is the pinnacle: the project began with the development of bench scale reactors, followed by a 30-times-larger pilot scale reactor. The reactor at the heart of the new production plant is 80 times larger than the latter and features four Cat Pumps Model 3801 high pressure triplex plunger pumps.
‘These are very exciting times for Promethean Particles,’ said Dr Susan Huxtable, Director of Intellectual Property and Commercialisation at the University of Nottingham. ‘The new facility opens up a myriad of opportunities for them to sell their services into new markets right across the world. It is a great example of how many of the technologies developed by academics here at the University of Nottingham have the potential to benefit both industry and society.’
Source: Cordis

Read more: Introducing the world’s biggest nanomaterial production plant

Aparat de precizie cu 3 canale pentru nanometri pentru comutatoare și servomotoare cu inerție piezoelectrică

Aparat de precizie cu 3 canale pentru nanometri pentru comutatoare și servomotoare cu inerție piezoelectrică
(Nanowerk News) PI (Physik Instrumente) L.P., cunoscut pentru componentele, sistemele și soluțiile de mișcare de precizie nanometrice, anunță cel mai nou control servo digital cu 3 canale, oferind o mai mare flexibilitate pentru funcțiile miniaturizate de poziționare și manipulare a preciziei. Aplicațiile includ alinierea și automatizarea de precizie, tehnologia semiconductorilor, fotonica, bio-nanotehnologia, metrologia, microscopia, micro-manipularea.
Noul controller E-873.3QTU cu 3 axe complimentează dimensiunile poziționerilor ultracompact controlați, are integrate amplificatoare de putere și interpolator și este programabil macro pentru funcționalitatea autonomă a fiecărui canal.

Posted: Jul 29, 2016

Nanometer Precision 3-Channel Controller For Miniature Piezo Inertia Drives and Actuators

(Nanowerk News) PI (Physik Instrumente) L.P., known industry-wide for nanometer precision motion components, systems, and solutions, announces the newest digital servo controller with 3-channels, offering greater flexibility for miniaturized precision positioning and handling tasks. Applications include precision alignment and automation, semiconductor technology, photonics, bio-nano-technology, metrology, microscopy, micro-manipulation.
The new E-873.3QTU 3-axis controller compliments the size of the ultra-compact positioners it controls, has integrated power amplifiers and interpolator, and is macro programmable for stand-alone functionality of each channel.
E-873.3QTU 3-axis controller
Data Recorder, Auto-Calibration ID Chip, Quick Start Up, Comprehensive Software Package
The E-873.3QTU is equipped with a data recorder for high speed tracing, ID chip compatibility for quick start-up and on-the-fly parameter changes, and exchange of system components without recalibration. The controllers are delivered with extensive software packages, including drivers for LabVIEW, as well as dynamic libraries for Windows and Linux. In addition, a powerful macro programming language is available, for automation tasks and stand-alone operation. Communication with a host PC is via modern interfaces, such as TCP/IP and USB. An optional joystick is available for manual operation.
Specifications, Datasheet, More Information
Operating Principle of Piezo Inertia Motors
Standard and Custom
PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application.
About PI
PI is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with eleven subsidiaries, R&D / engineering on 3 continents and total staff of 850+.
Source: PI (press release)

Read more: Nanometer Precision 3-Channel Controller For Miniature Piezo Inertia Drives and Actuators

O nouă înregistrare în detectarea microundelor(New record in microwave detection )

Noul detector funcționează la o suta de grade deasupra temperaturii zero absolute. Perturbațiile termice la temperaturi atât de scăzute sunt atât de slabe încât echipa de cercetare ar putea detecta pachete energetice de numai un singur zeptojoule. Aceasta este energia necesară pentru ridicarea unei celule roșii din sânge cu un singur nanometru.
Cea de-a doua dezvoltare-cheie se referă la amplificarea semnalului rezultat din micile pachete de energie. În acest scop, oamenii de știință au folosit ceva numit feedback pozitiv. Aceasta înseamnă că există o sursă externă de energie care amplifică schimbările de temperatură care decurg din fotonii absorbiți.

Posted: Jul 08, 2016

New record in microwave detection

(Nanowerk News) Aalto University scientists have broken the world record by fourteen fold in the energy resolution of thermal photodetection.

The record was made using a partially superconducting microwave detector. The discovery may lead to ultrasensitive cameras and accessories for the emerging quantum computer.
Artistic image of a hybrid superconductor-metal microwave detector
Figure 1: Artistic image of a hybrid superconductor-metal microwave detector. (Image: Ella Maru Sudio) The first of the two key enabling developments is the new detector design consisting of tiny pieces of superconducting aluminum and a golden nanowire. This design guarantees both efficient absorption of incoming photons and very sensitive readout. The whole detector is smaller than a single human blood cell.
“For us size matters. The smaller the better. With smaller detectors, we get more signal and cheaper price in mass production”, says Mikko Möttönen, the leader of the record-breaking Quantum Computing and Devices research group.
The new detector works at a hundredth of a degree above absolute zero temperature. Thermal disturbances at such low temperatures are so weak that the research team could detect energy packets of only a single zeptojoule. That is the energy needed to lift a red blood cell by just a single nanometer.
The second key development concerns the amplification of the signal arising from the tiny the energy packets. To this end, the scientists used something called positive feedback. This means that there is an external energy source that amplifies the temperature change arising from the absorbed photons.
Scanning-electron microscope image of a microwave detector
Figure 2: Scanning-electron microscope image of the microwave detector. The nanowire is colored yellow and the other parts are superconducting aluminum. Photons arrive from the left and get absorbed at the long part of the nanowire. This leads to an elevated temperature and weakening of superconductivity at the short parts of the nanowire which consequently work as a sensitive thermometer. (Image: Joonas Govenius)
From discovery to products
Microwaves are currently used in mobile phone communications and satellite televisions, thanks to their ability to pass through walls. More sensitive microwave detectors may lead to great improvements of the present communication systems and measurement techniques.
The European Research Council (ERC) has just awarded Möttönen a prestigious Proof of Concept Grant to develop the detector towards commercial applications. This was the third personal ERC grant awarded to Möttönen.
Besides communication systems the new detector could be used as a measurement device in the emerging superconducting quantum computer.
“Existing superconducting technology can produce single microwave photons. However, detection of such traveling photons efficiently is a major outstanding challenge. Our results provide a leap towards solving this problem using thermal detection,” says Joonas Govenius who is the first author of the work (Physical Review Letters, „Detection of zeptojoule microwave pulses using electrothermal feedback in proximity-induced Josephson junctions”).
New Physics
A microwave detector may also be useful for thermodynamics of small systems, a new research area Möttönen has studied in collaboration with his Aalto colleague Professor Jukka Pekola.
Now Pekola and his group want to go to the quantum regime but they first need a detector capable of measuring the energy released by the quantum systems. This means that the detector should be able to accurately measure single microwave photons.
“Quantum thermodynamics may give yet another boost to technology since it deals with individual energy levels or particles, and is in this sense more precise than classical thermodynamics”, says Möttönen.
“There are also other groups developing single-photon microwave detectors such as that of Pekola. This is great since we can learn from each other and this way come up with even better products for future end users”, concludes Möttönen.
Source: Aalto University

Read more: New record in microwave detection

Rusă Yu-71 Avionul Hipersonic Atac (HAA) / „Nuke Glider” și Yu-74 Ultra-Maneuverable Hipersonic Glide Vehicule (HGV) Amenințări atac nuclear: Putem apăra împotriva lor?(Russian Yu-71 Hypersonic Attack Aircraft(HAA)/’Nuke Glider’ and Yu-74 Ultra-Maneuverable Hypersonic Glide Vehicle (HGV) Nuclear Attack Threats :Can We Defend Against Them?)

Avionul Hipersonic Atac (HAA) / „Nuke Glider” și Yu-74 Ultra-Maneuverable Hipersonic Glide Vehicule (HGV)

Stimpex 12

Big Hack Zilele mașinilor s-au dus în pereți, iar spitalele au înghețat un scenariu care s-ar putea întâmpla în funcție de ceea ce are deja(The Big Hack The day cars drove themselves into walls and the hospitals froze A scenario that could happen based on what already has)

Contul ficțional imaginat aici se bazează pe zeci de conversații cu experți în domeniul securității informatice, hackeri, oficialități guvernamentale și multe altele.

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