Search results

Magneto-optical trapping of a diatomic molecule.

• Author(s) : BARRY J. F., MCCARRON D. J., NORRGARD E. B., et al.
• Publication date: 2014/08/21
• Languages : English
• Keywords : Low temperature, Cooling, Strontium, Molecule, Laser, Expérimentation
• Source: Nature - vol. 512 - n. 7514

IIR document

Predictions of the ideal gas properties of refrigerant molecules.

• Author(s) : DEMANAY A., GLORIAN J., PARICAUD P., et al.
• Publication date: 2017/07
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 79
• Formats : PDF

The improving effect of reduced glutathione on boar sperm cryotolerance is related with the intrinsic ejaculate freezability.

• Author(s) : YESTE M., ESTRADA E., PINART E., et al.
• Publication date: 2014/04
• Languages : English
• Keywords : Sperm, Boar, Survival, Molecule, Cryopreservation, Freezing
• Source: Cryobiology - vol. 68 - n. 2

IIR document

Pyrolysis mechanism of HFO-1234yf with R32 by ReaxFF MD and DFT method.

• Author(s) : PU Y., LIU C., LI Q., et al.
• Publication date: 2020/01
• Languages : English
• Keywords : R1234yf, Density, R32, Molecule, Modelling, HFO, HFC
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 109
• Formats : PDF

Bénéfice d'une assistance micro-onde sur la qualité de la congélation.

Benefits of microwave assistance on the quality of freezing.

• Author(s) : SADOT M., CURET S., ROUAUD O., et al.
• Publication date: 2018/09
• Languages : French
• Keywords : Freezing, Cryogenics, Wave, Crystal, Ice, Molecule, Expérimentation, Freeze-drying
• Source: Revue générale du Froid & du Conditionnement d'air - n.1171

IIR document

A molecular dynamics study of cryogenic gas nucleation at high supersaturation.

• Author(s) : SUN W., MA Z., BU S., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Gas, Saturation, Vapour, Simulation, Prediction, Nucleation, Molecule, Pressure, Cryogenics
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

A neural network for predicting normal boiling point of pure refrigerants using molecular groups and a topological index.

• Author(s) : DENG S., SU W., ZHAO L.
• Publication date: 2016/03
• Languages : English
• Keywords : Artificial neural network, Physical property, Prediction, Molecule, Refrigerant, Boiling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 63
• Formats : PDF

IIR document

Study on thermodynamic process in pulse tube using molecular dynamics simulation.

• Author(s) : QI Y., PAN S., CHE Y., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Thermodynamics, Pulse tube, Helium, Simulation, Molecule, Iron, Expansion, Cryocooler
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Differential scanning calorimetry as a tool to monitor polysaccharide transformations.

• Author(s) : MOLINA-GARCÍA A. D., GOMEZ ORDOÑEZ E., RUPEREZ P.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Glass transition, Food industry, Cellulose, Calorimetry, Low temperature, Artichoke, Molecule
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Management of vapor release in secondary refrigeration processes based on hydrates involving CO2 as guest molecule.

• Author(s) : YOUSSEF Z., FOURNAISON L., DELAHAYE A., et al.
• Publication date: 2019/02
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
• Formats : PDF

IIR document

Characteristics of blends using low GWP molecules for application in centrifugal and screw compressor-based chillers.

• Author(s) : SCHULTZ K., KUJAK S., SORENSON E.
• Publication date: 2020/07/31
• Languages : English
• Source: IIR Rankine Conference 2020.
• Formats : PDF

IIR document

Numerical analysis of clogging dynamics in micromachined Joule–Thomson coolers.

• Author(s) : CAO H. S., VANAPALLI S., HOLLAND H. J., et al.
• Publication date: 2017/09
• Languages : English
• Keywords : Nitrogen, Joule-Thomson, Small scale, Gas cooler, Molecule, Modelling, Water
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 81
• Formats : PDF

Recommended by the IIR / IIR document

Review of ultra-low GWP molecules – thermodynamics properties and their characteristics for use in HVAC&R.

• Author(s) : KUJAK S., SCHULTZ K., SORENSON E.
• Publication date: 2020/07/31
• Languages : English
• Source: IIR Rankine Conference 2020.
• Formats : PDF

IIR document

Molecular simulation for surface tension of new low GWP working fluids.

• Author(s) : HOURIEZ C., MASELLA M., KONDOU C., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Low GWP, Density, Surface tension, R1234ze(E), , Simulation, Molecule, HFO
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Physics of freezing under electromagnetic conditions: a review.

• Author(s) : LE BAIL A., JHA P. K., XANTHAKIS E., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Ice, Microwave, Atom, Review, Molecule, Crystal, Freezing, Magnetic field, Electric field
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Coldest ever molecules

Physicists at Yale University claim to have achieved the coldest ever molecules through direct cooling.

• Publication date : 2014/10/01

Ultracold polar molecules

Scientists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder (CU-Boulder), have applied their expertise in ultracold atoms and lasers to produce the first high-density...

• Publication date : 2008/10/22

Near absolute zero molecules.

MIT succeeded in chilling molecules in a gas of sodium potassium (NaK) to a temperature of 500 nanokelvins.

• Publication date : 2015/09/02

World’s coldest molecules at Yale

According to a research article published in the journal Nature, physicists at Yale University have achieved the coldest ever molecules through direct cooling.

• Publication date : 2015/01/08

Vaccines: a step towards thermostability

Ensilication of the protein molecules of a vaccine against tuberculosis prevents its deterioration by heat.

• Publication date : 2019/10/30
• Subjects: Developing country

HFO1123: a new alternative to R410A?

Japanese firm Asahi Glass announced its own refrigerant for use in air conditioning systems, based on the new HFO molecule HFO1123.

• Publication date : 2014/04/28

A promising future for electric field refrigeration

A team of researchers from Pennsylvania State University, supported by the US Department of Energy and led by Qiming Zhang are investigating electrically induced heat effects of some ferroelectric polymers which could allow for compressor-free...

• Publication date : 2011/02/04

Invasion of a Body Snatcher

New research by French scientists has revealed how Listeria monocytogenes can activate the cellular transport machinery that transports viruses and small molecules and proteins and use it to invade cells and hide from the body's immune system....

• Publication date : 2005/11/23

Briefs: Flat-panel fridge

According to researchers at Pennsylvania State University, a new approach to refrigeration and cooling could make for high-efficiency, portable, and quiet refrigerators in the future. The method works by repeatedly applying an electric field to...

• Publication date : 2008/10/25

Honey is an efficient natural cryoprotectant in fertility preservation

While several review articles point to the need for new, effective and less toxic cryoprotectants, honey has proven to be an effective non-penetrating...

• Publication date : 2022/03/31
• Subjects: Technology

Novel desiccant materials for more energy-efficient AC systems

Teams of researchers at MIT and at Texas A&M University have developed novel desiccant materials that could lead to more energy-efficient and economical room air conditioners and...

• Publication date : 2021/04/28
• Subjects: Technology

Cryochemistry: chemical reactions accelerated by freezing

Surprisingly, some chemical reactions can be accelerated by freezing. The possible applications of studying such cryoreactions include the food and pharmaceutical cold chain, as well...

• Publication date : 2022/02/28
• Subjects: Environment, Technology

Extracting cannabinoids using cryogenics

Several companies specialising in liquefied gases are developing systems operating with liquid nitrogen for cannabidiol (CBD) producers. 

• Publication date : 2022/05/27

Visualization of artificial proteins with cryo-electron microscopy

A team of researchers managed to visualize the atomic structure of peptoids.

• Publication date : 2019/12/30

Radiative cooling: protecting ice from melting under sunlight

Researchers have developed a biodegradable film made of cellulose acetate which, thanks to its radiative cooling properties, effectively protects ice subjected to solar radiation from melting, with possible...

• Publication date : 2022/03/30

The long awaited ICR2015 is underway!

Held every four years, this year ICR2015 welcomes 1,011 conference delegates from 55 countries, making it a truly global refrigeration event.

• Publication date : 2015/08/19

Conference report: An important event in Saint Petersburg

The IIR-co-sponsored International Conference on the "Conservation of Genetic Resources", was held in Saint Petersburg at the prestigious Institute of Cytology (Russian Academy of Sciences), on October 19-22, 2004. There were 120 participants from...

• Publication date : 2005/02/11

Publish your article in the IJR

Do you have something innovative to say about refrigeration? Find out how you can publish an article in the IIR International Journal of Refrigeration (IJR).

• Publication date : 2015/09/29

Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

• Last update : 2023/03/10
• Langues : English, French
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : English, French
• Themes : Hydrocarbons, Containment, refrigerant charge reduction