Substantial Morphological Changes and Low-Temperature Dielectric Response of α-MoO3 Nanosheets after Thermal Treatment

The aim of the investigation – to study changes in hepatic tissue resulting from the influence of low temperatures (– 195,8 °C) in experiments and clinic. Hepatic tissue investigations in experiment have been carried out using electron and light microscopy. During the surgery instruments of original design have been used – cryoscalpels and cryodestructors. Experiments have been carried out on 45 sexually mature dogs of both sexes. Animals have been separated into 3 groups. On the first group (consisting of 12 animals), in the acute experiment, there have been studied features of cryoscalpel design characteristics. In the second series of experiment (on 22 dogs) there have been made a comparative study of hepatic resection using cryoultrasonic scalpel and simple surgical scalpel by means of the study of hemorrhage quantity. In 11 cases there have been studied hepatic morphological changes affected by cryoeffect. By the effect of low temperature ice crystals are appeared in hepatic tissue intracellularly and outside the cell, they cause mechanical injury and rupture of hepatic tissue. In 45 days connective tissue elements are formed at the place of cryodestruction. The use of cryoultrasonic scalpel in hepatic resection in the experiment decreases the hemorrhage quantity by 1,26 times as compared to the traditional methods. Positive experimental investigations allowed to use the low temperature with success in clinical practice at 253 patients with different localized hepatic diseases with 13 lethal outcomes (5,1%). Thus, the used cryosurgical technique during surgical operations allows to decrease significantly the hemorrhage, to eliminate parenchymatous bleeding and to prevent relapses of disease both at growths and at parasitic hepatic affection.

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Low-Temperature Thermal Treatment Processes

Handbook of Environmental Engineering - Biosolids Treatment Processes ◽

10.1007/978-1-59259-996-7_9 ◽

2007 ◽

pp. 299-329 ◽

Cited By ~ 1

Author(s):

Lawrence K. Wang ◽

Clint Williford ◽

Wei-Yin Chen ◽

Nazih K. Shammas

Keyword(s):

Thermal Treatment ◽

Low Temperature ◽

Treatment Processes

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Basic Study on the Remediation Technology of Mercury Compound-Contaminated Soil by Low-Temperature Thermal Treatment

Mercury Contaminated Sites ◽

10.1007/978-3-662-03754-6_24 ◽

1999 ◽

pp. 421-440 ◽

Cited By ~ 1

Author(s):

A. Matsuyama ◽

H. Iwasaki ◽

K. Higaki ◽

H. Yabuta ◽

T. Sano ◽

...

Keyword(s):

Thermal Treatment ◽

Low Temperature ◽

Contaminated Soil ◽

Mercury Compound ◽

Basic Study ◽

Remediation Technology

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Compatibility of POCl3 Gate Process with the Fabrication of Vertical 4H-SiC MOSFETs

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1004.565 ◽

2020 ◽

Vol 1004 ◽

pp. 565-570

Author(s):

Tomokatsu Watanabe ◽

Munetaka Noguchi ◽

Shingo Tomohisa ◽

Naruhisa Miura

Keyword(s):

Thermal Treatment ◽

Low Temperature ◽

Negative Charge ◽

Charge Trapping ◽

Gate Oxide ◽

Device Fabrication ◽

Post Processing ◽

Production Lines ◽

Channel Mobility ◽

Device Operation

We used the POCl3 gate technique for the fabrication of 4H-SiC vertical MOSFETs, and examined its effect on the VTH-RON tradeoff and the compatibility with device fabrication. The gate oxide film was formed by thermal dry O2 oxidation followed by POCl3 or NO annealing. The POCl3 process reduced RON by about 30% compared with the NO process for the ones having VTH of 1.1 V, being attributed to the channel mobility enhancement. Moreover, the improvement was more effective for higher VTH designs. The conventional thermal treatment after the gate process considerably spoiled the channel mobility improvement brought by the POCl3 annealing and strengthened negative charge trapping in the gate oxide. The presumed extra-formed defects also affected the EOX dependence of tBD on the TDDB tests, being expected to shorten the gate oxide lifetime under practical device operation stress. Successful insertion of the POCl3 process into production lines depends upon careful low-temperature post processing.

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Evidence for multiple removal pathways in low-temperature (200–400 °C) thermal treatment of pentachlorophenol-laden soils

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2020.122870 ◽

2020 ◽

Vol 400 ◽

pp. 122870

Author(s):

R. Justin Davis ◽

Howard M. Liljestrand ◽

Lynn E. Katz

Keyword(s):

Thermal Treatment ◽

Low Temperature

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Influence of Al-Cu-Mn-Fe-Ti Alloy Composition and Production Parameters of Extruded Semi-Finished Products on their Structure and Mechanical Properties

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.265.456 ◽

2017 ◽

Vol 265 ◽

pp. 456-462 ◽

Cited By ~ 1

Author(s):

P.L. Reznik ◽

Mikhail Lobanov

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Thermal Treatment ◽

Low Temperature ◽

Room Temperature ◽

High Temperature Strength ◽

Ti Alloy ◽

Low Temperature Annealing ◽

Annealing Conditions ◽

Concentration Changes

Studies have been conducted as to the effect of Cu, Mn, Fe concentration changes in Al-Cu-Mn-Fe-Ti alloy, the conditions of thermal and deformational treatment of ingots and extruded rods 40 mm in diameter on the microstructure, phase composition and mechanical properties. It has been determined that changing Al-6.3Cu-0.3Mn-0.17Fe-0.15Ti alloy to Al-6.5Cu-0.7Mn-0.11Fe-0.15Ti causes an increase in the strength characteristics of extruded rods at the room temperature both after molding and in tempered and aged conditions, irrespective of the conditions of thermal treatment of the initial ingot (low-temperature annealing 420 °С for 2 h, or high-temperature annealing at 530 °С for 12 h). Increasing the extruding temperature from 330 to 480 °С, along with increasing Cu, Mn and decreasing Fe in the alloy Al-Cu-Mn-Ti, is accompanied by the increased level of ultimate strength in a quenched condition by 25% to 410 MPa, irrespective of the annealing conditions of the original ingot. An opportunity to apply the Al-6.3Cu-0.3Mn-0.17Fe-0.15Ti alloy with low-temperature annealing at 420 °С for 2 h and the molding temperature of 330 °С has been found to produce rods where, in the condition of full thermal treatment (tempering at 535 °С + aging at 200 °С for 8 hours), a structure is formed that ensures satisfactory characteristics of high temperature strength by resisting to fracture for more than 100 hours at 300 °С and 70 MPa.

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