scholarly journals Piezoelectric Power Harvesting Process via Phase Changes of Low-Boiling-Point Medium Together with Water for Recovering Low-Temperature Heats

2018 ◽  
Vol 06 (11) ◽  
pp. 65-77
Author(s):  
Seiichi Deguchi ◽  
Akinori Miyajima ◽  
Hajime Arimura ◽  
Haruna Banno ◽  
Noriyuki Kobayashi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Boiling Point ◽  
Phase Changes ◽  
Power Harvesting ◽  
Harvesting Process

New High- and Low-Temperature Phase Changes of ZIF-7: Elucidation and Prediction of the Thermodynamics of Transitions

2015 ◽  
Vol 137 (42) ◽  
pp. 13603-13611 ◽  
Author(s):  
Yi Du ◽  
Bradley Wooler ◽  
Meghan Nines ◽  
Pavel Kortunov ◽  
Charanjit S. Paur ◽  
...  
Keyword(s):  
Low Temperature ◽  
Phase Changes ◽  
Temperature Phase ◽  
Low Temperature Phase

scholarly journals Multi-step hydration/dehydration mechanisms of rhombohedral Y2(SO4)3: a candidate material for low-temperature thermochemical heat storage

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15604-15613 ◽  
Author(s):  
Kunihiko Shizume ◽  
Naoyuki Hatada ◽  
Shoko Yasui ◽  
Tetsuya Uda
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Thermal Behavior ◽  
Reaction Mechanisms ◽  
Heat Storage ◽  
Phase Changes ◽  
Dehydration Reaction ◽  
Thermochemical Heat Storage

To evaluate rhombohedral Y2(SO4)3 as a new potential material for low-temperature thermochemical energy storage, its thermal behavior, phase changes, and hydration/dehydration reaction mechanisms are investigated.

35Cl NQR Studies of Hexachlorometallates(IV) with Organic Cations, A2 [MCl6] and A'[MCl6], M=Sn, Te, Pb and A+, A'2+ = Organic Cation

1990 ◽  
Vol 45 (3-4) ◽  
pp. 293-302 ◽  
Author(s):  
Dirk Borchers ◽  
Alarich Weiss
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Low Temperature ◽  
Resonance Line ◽  
Organic Cation ◽  
Phase Changes ◽  
Organic Cations ◽  
Temperature Phase ◽  
35Cl Nqr ◽  
Low Temperature Phase

Abstract35Cl NQR spectra of eleven hexachlorometallates (IV) A1 [MCl6] and A'[MCl6], M = Sn, Te, Pb, and A+ =ethylammonium, 4-picolinium, anilinium, triethylammonium, chinoxalinium, and piperi-dinium ions, and A'2+ = 1.3-propylenediammonium ion, have been observed as a function of tem-perature. The ethylammonium hexachlorometallates(IV) (C2H5 NH3)2 [MCl6], M = Sn, Te, show a phase transition at 128.8 K and 204 K, respectively. Both compounds yield a single resonance line in their high temperature phases. In case of the stannate this single 35Cl resonance line splits up into two lines at Tc = 128.8 K, whereas for the tellurate no 35Cl NQR signals could be found in the low temperature phase. A phase transition was also found for the 1.3-propylenediammonium hexa-chlorostannate(IV) at 287 K where the six line NQR spectrum of the low temperature phase changes into a four line spectrum. In contrast, the corresponding plumbate shows no transition. All other compounds studied contain distorted [MCl6]2- octahedra, and therefore they yield more than one 35Cl resonance line. The complexes have been investigated in the temperature range temperature where the lines fade out. In case of the hexachlorostannates(IV) with the ethylammonium, the 1.3-propylenediammonium and the triethylammonium ions, the crystal structures of the compounds are known and compared with the results of the 35Cl NQR spectroscopy.

Low-temperature and high-pressure phase changes of room-temperature ionic liquids

2020 ◽  
Vol 300 ◽  
pp. 112340
Author(s):  
Hiroshi Abe ◽  
Hiroaki Kishimura ◽  
Takahiro Takekiyo ◽  
Tomonori Hanasaki ◽  
Yukihiro Yoshimura ◽  
...  
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Low Temperature ◽  
Room Temperature ◽  
Phase Changes ◽  
High Pressure Phase ◽  
Room Temperature Ionic Liquids ◽  
Pressure Phase

Low-Temperature Hydrothermal Treatment of Biomass:  Effect of Reaction Parameters on Products and Boiling Point Distributions

2004 ◽  
Vol 18 (1) ◽  
pp. 234-241 ◽  
Author(s):  
Selhan Karagöz ◽  
Thallada Bhaskar ◽  
Akinori Muto ◽  
Yusaku Sakata ◽  
Md. Azhar Uddin
Keyword(s):  
Low Temperature ◽  
Hydrothermal Treatment ◽  
Boiling Point ◽  
Reaction Parameters

scholarly journals Morphological manifestations of freezing and thawing injury in bacteriophage T4Bo

1976 ◽  
Vol 77 (1) ◽  
pp. 119-127 ◽  
Author(s):  
P. R. M. Steele
Keyword(s):  
Low Temperature ◽  
Morphological Changes ◽  
Plaque Assay ◽  
Electron Microscopic Observation ◽  
Eutectic Phase ◽  
Phase Changes ◽  
Extended Form ◽  
Freezing And Thawing ◽  
Electron Microscopic ◽  
Tail Sheath

SUMMARYElectron microscopic observation of negatively stained preparations of frozen and thawed suspensions of T4Bo phage clearly separated the morphological changes produced by low-temperature salt denaturation from those produced by eutectic phase changes. Salt denaturation caused contraction of tail sheaths. Eutectic phase changes appeared to cause two separate lesions. Firstly the tail sheath was disjointed 18–22 nm. below the collar and the tail core was disjointed at 40–60 nm. below the collar, giving rise to separated heads with a small tail remnant, and separated tails in which the sheath remarkably remained in its extended form. Secondly, tears were seen in the head membranes of particles with collapsed empty heads. In all the experiments the percentage of normal phage particles counted electron-microscopically was close to the percentage of viable phage as determined by plaque assay.

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