Location: Engineering Library- TD430.S536 2016

Location: Engineering Library- TA481.5.A38 2016

Location: Engineering Library- TA409.L346 2016

Savannah, GA United States - High School Diploma or GED required. 2 years material experience expediting and/or warehouse operations. Position Purpose : Under direct supervision, performs a variety of activities within the Material Logistics process: DC/Warehouse distribution and shop floor c... View

Este es el Personaje del Día de María Alejandra Villamizar

En Caracol Radio estuvo Jorge Méndez, representante de Cambio Radical.

Give us the Heavywork, please.

Thirty-six boxes of 17th century archaeological material have returned to Bermuda after study at William and Mary, Williamsburg, Virginia. A spokesperson said, “The returned materials include archaeological finds and records relating to the First Forts Project, undertaken between 1993 and 2003 by the Department of Anthropology at the College of William & Mary and the […]

According to the U.N. Environmental Program, the construction industry is not making enough efforts to achieve net-zero emissions. While all sectors are making efforts to cut greenhouse gas emissions, the construction sector is still to get an organized strategy. Today, up to 50% of the world's climate change is caused by the construction sector. The same industry is responsible for up to 40% of the pollution in water bodies. These figures just go to show, how significant the construction industry is in regards to environmental impact.[...]

"Researchers at the University of Texas have unveiled a new thermal interface material that could revolutionize cooling, outperforming top liquid metal solutions by up to 72% in heat dissipation," writes Slashdot reader jjslash. "This breakthrough not only improves energy efficiency but also enables higher-density data center setups, cutting cooling costs and energy usage significantly." TechSpot reports: Thanks to a mechanochemically engineered combination of the liquid metal alloy Galinstan and ceramic aluminum nitride, this thermal interface material, or TIM, outperformed the best commercial liquid metal cooling products by a staggering 56-72% in lab tests. It allowed dissipation of up to 2,760 watts of heat from just a 16 square centimeter area. The material pulls this off by bridging the gap between the theoretical heat transfer limits of these materials and what's achieved in real products. Through mechanochemistry, the liquid metal and ceramic ingredients are mixed in an extremely controlled way, creating gradient interfaces that heat can flow across much more easily. Beyond just being better at cooling, the researchers claim that the higher performance reduces the energy needed to run cooling pumps and fans by up to 65%. It also unlocks the ability to cram more heat-generating processors into the same space without overheating issues. [...] As for how you can get your hands on the material: it's yet to make it out of the labs. The UT team has so far only tested it successfully at small scales but is now working on producing larger batches to put through real-world trials with data center partners. The material has been detailed in a paper published in the journal Nature Nanotechnology.

Read more of this story at Slashdot.

Schools must make the critical decision whether to reinforce the learning that students have already done this year or introduce new content.

See how geometric designs are inspiring new ways to make stretchy materials. (Video by Ahmad Rafsanjani and Damiano Pasini/McGill University)

On the island of Laeso in Denmark, one man is reviving the lost art of eelgrass thatching and, in doing so, bringing attention to a plant that has great potential

MatWeb's new export engine pipes data from its 47,000 material information sheetsdirectly into SolidWorks and COSMOSWorks

One team member is delighted at God's way of multiplying the gospel message through the gift of an SD card.

Matthew Caputo, associate teaching professor of engineering at Penn State Shenango, is exploring the fatigue behaviors of nickel-titanium shape memory alloys.

Rohit Shetty said, "Everyone enjoys memes now"

The Delaware Division of the Arts’ Mezzanine Gallery presents artist Samara Weaver’s exhibition, Explorations Through Materiality, running June 3 through 24, 2022. Guests are invited to attend a Meet-the-Artist Reception to be held Friday, June 3, from 5-7 p.m. as part of Art Loop Wilmington. 

Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits

A super-stretchy hydrogel can stretch to 15 times its original length and return to its initial shape, and could be used to make soft inflatable robots

A new equation shows a surprisingly simple relationship between pressure and the temperature needed to melt any solid substance into a liquid

Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits

Light can be directed and steered around bends using a method similar to the way clouds scatter photons, which could lead to advances in medical imaging, cooling systems and even nuclear reactors

Light can be directed and steered around bends using a method similar to the way clouds scatter photons, which could lead to advances in medical imaging, cooling systems and even nuclear reactors

A prefilled syringe (PFS) should be able to be adequately and consistently extruded during injection for optimal safe drug delivery and accurate dosing. To facilitate appropriate break-loose and gliding forces (BLGFs) required during injection, certain primary packaging materials (PPMs) such as the syringe barrel and plunger are usually coated with silicone oil, which acts as a lubricant. Due to its direct contact with drug, silicone oil can increase the number of particles in the syringe, which could lead to adverse interactions. Compliance with regulatory-defined silicone oil quantities in certain drug products, such as ophthalmics, presents a trade-off with the necessity for desirable low and consistent BLGF. In addition to its siliconization, the dimensional accuracy of the PPM has an important role in controlling the BLGF. The dimensions of the PPM are individualized depending on the product and its design and have certain tolerances that must be met during manufacturing. Most studies on ophthalmics focused on the adverse interactions between silicone oil and the drug. To the authors' knowledge, there have been no public studies so far that have investigated the impact of the dimensional variability of the PPM on the BLGF in ophthalmic PFSs. In this study, we applied advanced optical shaft and tactile measuring technologies to investigate this impact. The syringes investigated were first sampled during aseptic production and tested for the BLGF. Subsequently, defined dimensions of the PPM were measured individually. The results showed that the dimensional variability of the PPM can have a negative impact on the BLGF, despite their conformity to specifications, which indicates that the currently available market quality of PPMs is improvable for critical drug products such as ophthalmics. This study could serve as an approach to define product-specific requirements for primary packaging combinations and thus appropriate specifications based on data during the development stage of drug products.

A new procedure turns an alloy of nickel and titanium into a material as strong as steel but 20 times stretchier – and one application could be building planes with shape-shifting wings

Quantum computing is a devilishly complex technology, with many technical hurdles impacting its development. Of these challenges two critical issues stand out: miniaturization and qubit quality.

IBM has adopted the superconducting qubit road map of reaching a 1,121-qubit processor by 2023, leading to the expectation that 1,000 qubits with today’s qubit form factor is feasible. However, current approaches will require very large chips (50 millimeters on a side, or larger) at the scale of small wafers, or the use of chiplets on multichip modules. While this approach will work, the aim is to attain a better path toward scalability.

Now researchers at MIT have been able to both reduce the size of the qubits and done so in a way that reduces the interference that occurs between neighboring qubits. The MIT researchers have increased the number of superconducting qubits that can be added onto a device by a factor of 100.

“We are addressing both qubit miniaturization and quality,” said William Oliver, the director for the Center for Quantum Engineering at MIT. “Unlike conventional transistor scaling, where only the number really matters, for qubits, large numbers are not sufficient, they must also be high-performance. Sacrificing performance for qubit number is not a useful trade in quantum computing. They must go hand in hand.”

The key to this big increase in qubit density and reduction of interference comes down to the use of two-dimensional materials, in particular the 2D insulator hexagonal boron nitride (hBN). The MIT researchers demonstrated that a few atomic monolayers of hBN can be stacked to form the insulator in the capacitors of a superconducting qubit.

Just like other capacitors, the capacitors in these superconducting circuits take the form of a sandwich in which an insulator material is sandwiched between two metal plates. The big difference for these capacitors is that the superconducting circuits can operate only at extremely low temperatures—less than 0.02 degrees above absolute zero (-273.15 °C).

Superconducting qubits are measured at temperatures as low as 20 millikelvin in a dilution refrigerator.Nathan Fiske/MIT

In that environment, insulating materials that are available for the job, such as PE-CVD silicon oxide or silicon nitride, have quite a few defects that are too lossy for quantum computing applications. To get around these material shortcomings, most superconducting circuits use what are called coplanar capacitors. In these capacitors, the plates are positioned laterally to one another, rather than on top of one another.

As a result, the intrinsic silicon substrate below the plates and to a smaller degree the vacuum above the plates serve as the capacitor dielectric. Intrinsic silicon is chemically pure and therefore has few defects, and the large size dilutes the electric field at the plate interfaces, all of which leads to a low-loss capacitor. The lateral size of each plate in this open-face design ends up being quite large (typically 100 by 100 micrometers) in order to achieve the required capacitance.

In an effort to move away from the large lateral configuration, the MIT researchers embarked on a search for an insulator that has very few defects and is compatible with superconducting capacitor plates.

“We chose to study hBN because it is the most widely used insulator in 2D material research due to its cleanliness and chemical inertness,” said colead author Joel Wang, a research scientist in the Engineering Quantum Systems group of the MIT Research Laboratory for Electronics.

On either side of the hBN, the MIT researchers used the 2D superconducting material, niobium diselenide. One of the trickiest aspects of fabricating the capacitors was working with the niobium diselenide, which oxidizes in seconds when exposed to air, according to Wang. This necessitates that the assembly of the capacitor occur in a glove box filled with argon gas.

While this would seemingly complicate the scaling up of the production of these capacitors, Wang doesn’t regard this as a limiting factor.

“What determines the quality factor of the capacitor are the two interfaces between the two materials,” said Wang. “Once the sandwich is made, the two interfaces are “sealed” and we don’t see any noticeable degradation over time when exposed to the atmosphere.”

This lack of degradation is because around 90 percent of the electric field is contained within the sandwich structure, so the oxidation of the outer surface of the niobium diselenide does not play a significant role anymore. This ultimately makes the capacitor footprint much smaller, and it accounts for the reduction in cross talk between the neighboring qubits.

“The main challenge for scaling up the fabrication will be the wafer-scale growth of hBN and 2D superconductors like [niobium diselenide], and how one can do wafer-scale stacking of these films,” added Wang.

Wang believes that this research has shown 2D hBN to be a good insulator candidate for superconducting qubits. He says that the groundwork the MIT team has done will serve as a road map for using other hybrid 2D materials to build superconducting circuits.

If you’ve ever tried to make a portrait that looks like the person you’re sketching, you know it’s no walk in the park. Maybe you’ve got the eyes perfectly, but then the mouth looks… well, let’s say “abstract.” So, how do the pros do it? What tools, materials, and techniques help bring out that jaw-dropping […]

The post Draw Portraits Like a Pro – Essential Tools and Materials for Photo-Realistic Results appeared first on Chart Attack.

Two exclusive conferences focusing on "Reference Material (RM) Producers" organized by National Accreditation Board for Testing and Calibration Laboratories (NABL) are scheduled to be held on January 10,

Researchers at Rice University have developed a magnetoelectric material that converts a magnetic field into an electric field. The material can be formulated such that it can be injected into the body, near a neuron, and then an alternating magnetic field can be applied to the area from outside the body. Magnetic fields are very […]

Light can be directed and steered around bends using a method similar to the way clouds scatter photons, which could lead to advances in medical imaging, cooling systems and even nuclear reactors

Extracted human teeth have long been used in conducting dental research, such as evaluating dental ceramic materials as crown restoration on a tooth.

Constantly striving for the next big purchase or chasing after the latest trend can sometimes leave us feeling unfulfilled, especially when it comes to relationships. The more we focus on material gains, the less we may focus on what truly matters-genuine

London ; New York : Routledge, 2002.

[s.l.] : Mohr Siebeck GmbH & Co. KG, 2023.

Cambridge : Cambridge University Press, 2018.

Manchester : Manchester University Press, [2017]

Berlin ; Boston : De Gruyter, [2023]

Bloomington, IN : Indiana University Press, 2014.

Manchester : Manchester University Press, [2020]