ADVERTISEMENT

Improving LED Screens with Scotch Tape and Laser Beams

Researchers at the Ultrafast Laser Lab at the University of Kansas have created a new bilayer material that someday could lead to more efficient and versatile light emission. Each layer, formed by combining atomically thin layers of molybdenum disulfide and rhenium disulfide, measures less than one nanometer in thickness.

New Report Details Communication Best Practices for Science Labs and Facilities

The InterAction Collaboration, a group of science communicators from 18 laboratories and institutions from 11 countries, has issued a new report summarizing communication best practices. It covers more than a dozen categories of communication and outreach activities, including managing reputational risks through communications, strategic approaches to communications and outreach, traditional...

ISRO Successfully Tests the GSLV MkIII Cryogenic Upper Stage

The Indian Space Research Organization (ISRO) completed a flight duration test for the cryogenic upper stage of its GSLV MkIII in mid-February. The move marked a significant milestone, according to ISRO, as the 640-second test was the last in series of engine and stage development hot tests before the launch...

Industry Team Developing High-Efficiency Hydrogen Compressor

Sustainable Innovations, Inc., Greenway Energy and Savannah River National Laboratory have announced a partnership designed to maximize the benefits of two cutting edge hydrogen compressor technologies by combining them into one hybrid compressor with both high reliability and efficiency.

Highview Expands LAES Offerings in NYC

Highview Power Storage, a designer and developer of large-scale energy storage solutions for utility and distributed power systems, has agreed to enter ACRE, New York City’s business incubator for smart cities, smart grid and clean energy at the Urban Future Lab (UFL) located at the NYU Tandon School of Engineering.

ITER Completes Niobium-Tin Procurement

The ITER community is celebrating a significant milestone: the end of a nine-year campaign to procure 88 km of niobium-tin superconductor for ITER's toroidal field coils. The total represents some 825 tons of material with an estimated market value of 350 million euros. Six ITER Members—China, Europe, Japan, Korea, Russia...

ADVERTISEMENT

Joule-Thomson Effect

The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...

Current Leads

One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...

Multilayer Insulation

Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...

Magnetic Levitation

From http://www.superconductors.org. Magnetic-levitation is an application where superconductors perform extremely well. Transport vehicles such as trains can be made to “float” on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Not only would conventional electromagnets waste much of the electrical energy as heat, they would have...

Superconductivity

From Superpower website. History of Superconductivity Superconductivity was discovered in 1911 by the Dutch physicist, Heike Kammerlingh Onnes when he was able to liquefy helium by cooling it to 4 Kelvin, or -452°F. This enabled him to cool other materials close to absolute zero and investigate their electrical properties. He...

Medical Applications of Cryogenics

Neutron Therapy Cryogenics is at the heart of nuclear accelerators. Accelerators such as Fermilab’s Tevatron make neutron therapy for cancer possible. From Fermilab Today 4/20/09: Fermilab currently offers neutron therapy. But staff at Fermilab designed and built the proton accelerator used by the nation’s first hospital-based treatment center to use...

Nuclear Physics

Al Zeller National Superconducting Cyclotron Lab (NSCL) at Michigan State University zeller@nscl.msu.edu Cryogenics has a long history in nuclear physics. The technology has its origins in the use of cold traps for maintaining a vacuum, which is required to prevent beam loss and for generating high voltages used in acceleration....

An Issue of Pressure and Flow Rate in a Supply Tank

Please help solve this problem: A supply tank requires a vaporizer to generate sufficient pressure to pump stored fluid up into a vehicle or tank. The available head is limited as the tank level falls and it is important to minimize the system pressure drop to maintain the desired flow...

Using MLI on VJ Line Joints or Cryo Storage Tanks

When installing Multi Layer Insulation (MLI) blankets on VJ line joints or cryo storage tanks should they be wrapped and tied down tight or loose? These are usually pre-cut to size. Also should they have an access hole at the point of where the molecular sieve is installed to help...