High-pressure processing (HPP) is a nonthermal technology used for food preservation capable of generating pasteurized milk products. There is much information regarding the inactivation of microorganisms in milk by HPP, and it has been suggested that 600 MPa for 5 min is adequate to reduce the number of log cycles by 5–7, resulting in …Web

We describe the current state of experimental studies of the effects of applied high pressure or stress on the thermoelectric properties and performance parameters of thermoelectric materials, as …Web

High pressure processing (HPP) is a novel technology that involves subjecting foods to high hydrostatic pressures of the order of 100–600 MPa. This technology has been proven successful for inactivation of numerous microorganisms, spores and enzymes in foods, leading to increased shelf life. ... This technology can be effectively …Web

The Lattice Strains in a Specimen (Hexagonal System) Compressed Nonhydrostatically in an Opposed Anvil High Pressure Setup. Journal of Applied Physics 75, 4956–4962 (1994).Web

In HPP high hydrostatic pressure is applied at 100–600 MPa for commercial processes, which is immediately and evenly transmitted through-out the product (packaged or non-packaged) using a pressure transmitting medium (PTM). Along with pressure, the temperature can be increased up to 60–65 °C to reduce microbial activity (Pinto et al., …Web

High pressure processing (HPP), also referred as high-hydrostatic pressure processing (HHP) or ultra-high-pressure processing (UHP) is a non-thermal technique of food preservation that inactivates pathogens and vegetative spoilage organisms. ... The efficacy of HPP treatments will be dependent on the pressure applied, the holding time …Web

The narrow distance for the changes in applied pressure to occur results in high applied pressure gradients in cuffs (b) and (c). (Reproduced with permission of Wolters Kluwer Health, Inc., from: Noordin S, McEwen JA, Kragh CJF, Eisen A, Masri BA. Surgical Tourniquets in Orthopaedics: The Journal of Bone and Joint Surgery-American …Web

High-Pressure Vessel and Closure: The high-pressure vessel is a robust and durable container designed to withstand the applied pressures. It is constructed using materials capable of withstanding high-pressure conditions, such as stainless steel or specialized alloys.Web

High-pressure processing (HPP) is based on the Le Chatelier principle; "Whenever pressure is applied to a system in equilibrium, the system will react to counteract the effect of constraint", such reaction will decrease volume under the high pressure and result in inactivation of microorganisms and enzymes.Web

HPP In high-pressure processing, foods are exposed to high pressures (300–700 MPa) for a short period, typically ranging from a few seconds to several minutes ( Farr, 1990; Mertens and Deplace, 1993 ).Web

The aim of the present review is to highlight the state of the art in high-pressure design of new advanced materials based on boron nitride. Recent experimental achievements on the governing phase transformation, nanostructuring and chemical synthesis in the systems containing boron nitride at high pressures and high …Web

A huge enhancement of the superconducting transition temperature T c was observed in a tetragonal FeSe superconductor under high pressure. The onset temperature was as high as 27 K at 1.48 GPa and the pressure coefficient showed an extremely high value of 9.1 K ∕ GPa ⁠. The upper critical field H c 2 was estimated to be ∼ 72 T at 1.48 …Web

A commercial scale high pressure vessel costs approximately between $600,000 to $4 million dollars depending upon the equipment capacity, and the extent of automation. As a new processing technology, pressure processed products may cost 3-10 cents per pound more to produce than thermally processed products. With a 525-liter HPP unit operating ...Web

High pressure processing (HPP), among other non-thermal methods of preservation, has gained widespread acceptance and is adopted for commercial processing of varieties of food in developed countries. It can ensure both microbial safety and shelf-life stability for various products effectively.Web

1. Introduction. HPP has been so far the most successful nonthermal technology in the food industry, and meat products represent around 25%–30% of the high-pressure (HP)-processed foods (Jung & Tonello-Samson, 2018).HPP is nowadays a food processing technology that can be utilized by the meat industry to produce new, novel, …Web

High pressure processing (HPP) as a nonthermal processing (NTP) technology can ensure microbial safety to some extent without compromising food quality. However, for vegetative …Web

High pressure along with the ambient temperature is a promising strategy to alleviate the shelf life of food. It helps the food processors to process it with neat and clean ingredients by using minimum additives. HPP can be applied to a broad range of foods including vegetables, fruits, seafood, and sauces.Web

High-pressure homogenization (HPH) is an emerging technology that can modify the structure and conformation of enzymes leading to their activation, stabilization, or inactivation based on the conditions of the treatment applied (pressure, inlet temperature, number of cycles, and others).Web

When highly abrasive hard rock strata are encountered during the TBM boring process, severe problems, such as low TBM boring efficiency and severe tool wear, emerge. High-pressure water jet-assisted TBM rock breaking technique has been developed and applied in steps. In this study, the effect of confining pressure and …Web

Since of the high pressure applied when pouring – up to 1,200 bar – the bolts holding the two halves of the die together must have a high locking force. As these have a relatively high melting ...Web

The high-pressure processing (HPP) industry uses plastic polymer materials for commercial product packaging. The hydrostatic pressure principle presents HPP users the unique opportunity of exploring packaging options regardless of shape or size for both rigid and flexible packaging, allowing commercialization of foods in bottles, kegs, …Web

High-pressure processing (HPP) is a non-thermal treatment in which, for microbial inactivation, foods are subjected to isostatic pressures (P) of 400–600 MPa with common holding times (t) from 1.5 to 6 min. ... Pathogen reductions in milk/colostrum caused by the current HPP conditions applied by the industry are lower than those achieved by ...Web

High-Pressure (HP) technology allows new possibilities of processing by Spark Plasma Synthesis (SPS). This process is mainly involved in the sintering process and for bonding, growing and reaction. High-Pressure tools combined with SPS is applied for processing polycrystalline diamond without binder (binderless PCD) in this current work. …Web

The rapid development of high-pressure technology makes it a powerful tool to modulate the structures of HEAs, and brings new chance for the study and optimization of mechanical properties of HEAs. ... The 10 mm Al 9 (CoCrFeMnNi) 91 HEA disk was processed by HPT for 5 turns at room temperature, 6 GPa applied pressure, and 1 …Web

High isostatic pressure and high pressure homogenization can be considered interesting unitary operations to be applied for inducing enzyme changes. Both processes are able to activate and/or stabilize the majority of enzymes when mild process conditions (low pressure and temperature) are applied and this is highly desirable since …Web

High Pressure Physics. High pressure physics: High pressure could induce various novel phenomena, due to the drastic shrinkage of atomic volume, such as enhanced electronic density, overlapped electronic orbitals. High pressure physics have been undergoing a fast advance in recent years with the combination of high pressure …Web

Although the pressure applied to foods can be assumed uniform, differences in temperature–time profiles among vessel locations for HPP-treated foods can cause non-uniform effects when the kinetics of the enzyme or microbial inactivation is temperature dependent (Denys et al. 2000a; van der Plancken et al. 2008). These differences can be ...Web

Abstract. Heat exchangers for supercritical CO 2 power generation and waste heat to power conversion systems have a significant impact on the overall cycle efficiency and system footprint. Key challenges for supercritical CO 2 heat exchangers include ability to withstand high temperature and high pressure (typical temperature range of heat …Web

At high pressure, the typical behavior of elements dictated by the periodic table—including oxidation numbers, stoichiometries in compounds, and reactivity, to name but a few—is altered dramatically.Web