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1. The N-Terminal Domain of Aβ₄₀-Amyloid Fibril: The MOMD Perspective of its Dynamic Structure from NMR Lineshape Analysis

Author:
Eva Meirovitch; Zhichun Liang; Jack H. Freed
Source:
Journal of physical chemistry 2022 v.126 no.6 pp. 1202-1211
ISSN:
1520-5207
Subject:
freezing,   etc   ; geometry; journals; neurodegenerative diseases; protein aggregates; protein structure;     Show all 6 Subjects
Abstract:
... We have developed the stochastic microscopic-order-macroscopic-disorder (MOMD) approach for elucidating dynamic structures in the solid-state from ²H NMR lineshapes. In MOMD, the probe experiences an effective/collective motional mode. The latter is described by a potential, u, which represents the local spatial-restrictions, a local-motional diffusion tensor, R, and key features of local geometry ...
DOI:
10.1021/acs.jpcb.1c10131

2. Conformationally flexible dendronized cyclotetraveratrylenes (CTTV)s self-organize a large diversity of chiral columnar, Frank-Kasper and quasicrystal phases

Author:
Dipankar Sahoo; Mihai Peterca; Mohammad R. Imam; Benjamin E. Partridge; Qi Xiao; Virgil Percec
Source:
Giant 2022 v.10 pp. 100096
ISSN:
2666-5425
Subject:
freezing,   etc   ; liquid crystals; models; thermal stability;     Show all 4 Subjects
Abstract:
... Primary structure endows the tertiary structure while the tertiary structure determines the function of hierarchical self-organizations. This is a well-established fundamental principle both for biological and non-biological synthetic assemblies. The role of the conformational flexibility-rigidity in this process is less understood. Here we select the conformationally flexible monodisperse tetrame ...
DOI:
10.1016/j.giant.2022.100096

3. Low-temperature architecture of a cubic-phase CsPbBr₃ single crystal for ultrasensitive weak-light photodetectors

Author:
Xiangfeng Wei; Han Liu; Zhixiang Zhang; Wenchao Xu; Wenjun Huang; Lin-Bao Luo; Jiehua Liu
Source:
Chemical communications 2021 v.57 no.63 pp. 7798-7801
ISSN:
1364-548X
Subject:
freezing point,   etc   ; chemical communication; crystals; frost; irradiation; methodology;     Show all 6 Subjects
Abstract:
... We present the first report of a water-regulated method for obtaining a cubic-phase CsPbBr₃ single crystal that could be frozen at low temperature with a CsBr/PbBr₂ ratio of 1 : 1. The cubic CsPbBr₃ single-crystal photodetector exhibits a superior responsivity of 278 A W⁻¹, an EQE of 6.63 × 10⁴%, and an ultrahigh detectivity of 4.36 × 10¹³ Jones under low-power 520 nm irradiation at 3 V. ...
DOI:
10.1039/d1cc03460j

4. Adaptive Network Detector for Radar Target in Changing Scenes

Author:
He Jing; Yongqiang Cheng; Hao Wu; Hongqiang Wang
Source:
Remote Sensing 2021 v.13 no.18 pp. -
ISSN:
2072-4292
Subject:
freezing,   etc   ; artificial intelligence; detectors; methodology; radar; remote sensing; uncertainty;     Show all 7 Subjects
Abstract:
... Data-driven deep learning has been well applied in radar target detection. However, the performance of the detection network is severely degraded when the detection scene changes, since the trained network with the data from one scene is not suitable for another scene with different data distribution. In order to address this problem, an adaptive network detector combined with scene classification ...
DOI:
10.3390/rs13183743

5. Structure/processing relationships and mechanical properties of freeze-cast B4C scaffolds with unidirectional channels

Author:
Yang Wang; Qiang Liu; Biao Zhang; Haoqian Zhang; Yicheng Jin; Zhaoxin Zhong; Feng Ye; Wen Wang
Source:
Journal of materials science 2021 v.56 no.25 pp. 13989-14000
ISSN:
0022-2461
Subject:
freezing,   etc   ; ceramics; composite materials; journals; mechanical properties; melting; porosity; solids;     Show all 8 Subjects
Abstract:
... Freeze casting technique has become a promising way to assemble various components into multifunctional nacre-like materials. Surprisingly, although many ceramics materials have been processed by this approach, there are few studies reporting the structure–property-processing relationships of freeze-cast porous B₄C ceramics. Here we generate bimodally lamellar porous B₄C scaffolds by freeze castin ...
DOI:
10.1007/s10853-021-06236-y

6. Enhanced thermal storage capacity of paraffin/diatomite composite using oleophobic modification

Author:
Pan Zhang; Yuanyuan Cui; Kaiqiang Zhang; Sainan Wu; Dongchu Chen; Yanfeng Gao
Source:
Journal of cleaner production 2021 v.279 pp. 123211
ISSN:
0959-6526
Subject:
freezing,   etc   ; buildings; diatomaceous earth; encapsulation; energy conservation; melting; reliability; storage; temperature;     Show all 9 Subjects
Abstract:
... The inherent leakage of molten paraffin during the solid-liquid transition and the immature state of industrial technology currently limit its practical applications for temperature regulation in smart energy-saving buildings. Here, a 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane modification of diatomite with an oleophobic surface was used as a supporting material of molten paraffin for enhancing ...
DOI:
10.1016/j.jclepro.2020.123211

7. An ultra-stretchable glycerol-ionic hybrid hydrogel with reversible gelid adhesion

Author:
Yonggan Yan; Jun Huang; Xiaoyong Qiu; Xin Cui; Shulei Xu; Xunwei Wu; Peng Yao; Chuanzhen Huang
Source:
Journal of colloid and interface science 2021 v.582 pp. 187-200
ISSN:
0021-9797
Subject:
freezing point,   etc   ; acrylamides; adhesion; adhesives; hydrogels; iron; mechanical stress; polyethyleneimine; temperature; tensile strength;     Show all 10 Subjects
Abstract:
... Functional hydrogels have attracted enormous interest as wet adhesives for biomedical research and engineering applications. However, reversible hydrogel adhesives that can be used for gelid conditions were rarely reported. In this work, we have developed a freezing-tolerant (freezing temperature < −50 °C), ultra-stretchable (stretch strain > 30000% at 25 °C) glycerol-ionic hydrogel via the ultrav ...
DOI:
10.1016/j.jcis.2020.08.008

8. Observation of the Anomalous Hall Effect in NdTiO₃/SrTiO₃ Heterostructures

Author:
Prithwijit Mandal; Shashank Kumar Ojha; Ranjan Kumar Patel; Siddharth Kumar; Srimanta Middey
Source:
Journal of physical chemistry 2021 v.125 no.23 pp. 12968-12974
ISSN:
1932-7455
Subject:
freezing,   etc   ; behavior; electrical conductivity; electrons; exhibitions; journals; lasers; longitudinal studies; magnetism; oxides; sampling;     Show all 11 Subjects
Abstract:
... The nature of magnetism at the complex oxide interface has been a highly debated topic since its discovery. The metallic interface between polar and nonpolar insulating complex oxides is a testbed for observing such magnetic behaviors. In this work, we investigate the interface between Mott insulating NdTiO₃ (NTO) and band insulating SrTiO₃ (STO). Our NTO/STO heterostructures, grown by a pulsed la ...
DOI:
10.1021/acs.jpcc.1c02608

9. Freeze-Chilling of Whitefish: Effects of Capture, On-Board Processing, Freezing, Frozen Storage, Thawing, and Subsequent Chilled Storage—A Review

Author:
Ulf Erikson; Solveig Uglem; Kirsti Greiff
Source:
Foods 2021 v.10 no.11 pp. -
ISSN:
2304-8158
Subject:
freezing,   etc   ; filleting; fillets; fish; fish industry; frozen storage; markets; methodology; objectives; packaging; supply chain; thawing;     Show all 12 Subjects
Abstract:
... The current review investigates how whitefish quality is affected by capture at sea, on board handling, freezing, double freezing, frozen storage, thawing, and chilled storage. Packaging of fillets in MAP and vacuum are also covered. The main goal was to evaluate the freeze-chilling concept as a possible method for the fishing industry for all-year-round marketing of fish captured during the relat ...
DOI:
10.3390/foods10112661

10. Impacts of different freeze-thaw treatments on the adsorption and desorption behaviors of Cd in black soil

Author:
Quanying Wang; Jingyue Sun; Hongwen Yu
Source:
Environmental science and pollution research international 2020 v.27 no.10 pp. 10990-10999
ISSN:
0944-1344
Subject:
freezing; freezing point,   etc   ; adsorption; cadmium; desorption; freeze-thaw cycles; frost; heavy metals; soil; temperature; thawing;     Show all 11 Subjects
Abstract:
... Seasonal freeze-thaw cycle (FTC) is one of the key processes that affect heavy metal behaviors in soil. However, previous studies are mainly focused on extreme FTC treatments which may exaggerate the real FTC effects in the field. This study aimed to compare the effects of different FTC conditions on the adsorption and desorption behaviors of Cd in the surface black soil. Different minimum freezin ...
DOI:
10.1007/s11356-020-07709-4

11. Effects of pulsed magnetic field on freezing kinetics and physical properties of water and cucumber tissue fluid

Author:
Lei Zhang; Zhao Yang; Qiujia Deng
Source:
Journal of food engineering 2021 v.288 pp. 110149
ISSN:
0260-8774
Subject:
freezing; freezing point,   etc   ; Cucumis sativus; crystals; cucumbers; ferromagnetism; hydrogen bonding; ice; magnetic fields; temperature; tempering;     Show all 11 Subjects
Abstract:
... In this paper, a special experimental device was designed to study the effect of pulsed magnetic fields (PMF) on freezing kinetics and physical properties of water and cucumber tissue fluid. Pure water and cucumber tissue fluid samples with 3.5 mL were frozen in PMF generated by a pair of Helmholtz coils. The magnetic flux density ranged from 0 to 6 mT in the experiment. The results show that PMF ...
DOI:
10.1016/j.jfoodeng.2020.110149

12. Ho₂Pd₁.₃Ge₂.₇ – a ternary AlB₂-type cluster glass system

Author:
Leszek S. Litzbarski; Tomasz Klimczuk; Michał J. Winiarski
Source:
RSC advances 2021 v.11 no.41 pp. 25187-25193
ISSN:
2046-2069
Subject:
freezing point,   etc   ; exhibitions; frost; glass;     Show all 4 Subjects
Abstract:
... We report a successful synthesis of a ternary AlB₂-type intermetallic compound. The phase purity was obtained by fine-tuning the Pd : Ge ratio out of the idealized 1 : 3. Attempts to synthesize an Er analogue were not successful. We discuss the instability of the Er analogue based on the atomic size ratio and also suggest that the increased stability of Ho₂Pd₁₊ₓGe₃₋ₓ in the Pd-rich range likely st ...
DOI:
10.1039/d1ra04422b

13. Effect of sodium chloride concentration and pre-curing time on the properties of cemented paste backfill in a sub-zero environment

Author:
Shiyu Zhang; Yingliang Zhao; Hangxing Ding; Jingping Qiu; Chen Hou
Source:
Journal of cleaner production 2021 v.283 pp. 125310
ISSN:
0959-6526
Subject:
freezing; freezing point,   etc   ; additives; behavior; calcium; carbon dioxide; cold zones; environment; evolution; fly ash; slags; sodium chloride;     Show all 12 Subjects
Abstract:
... The effects of NaCl concentration and pre-curing time on the properties of frozen cemented paste backfills (FCPB) are investigated in this study. Calcium sulphoaluminate (CṠA) is used as a mineral accelerator to increase initial hydration rate, and fly ash (FA) and ground granulated blast-furnace slag (GGBS) are used as mineral additives to minimize CO₂ emission and binder cost. The FCPB strength ...
DOI:
10.1016/j.jclepro.2020.125310

14. Manipulation of Unfrozen Water Retention for Enhancing Petroleum Hydrocarbon Biodegradation in Seasonally Freezing and Frozen Soil

Author:
Jihun Kim; Aslan Hwanhwi Lee; Wonjae Chang
Source:
Environmental science & technology 2021 v.55 no.13 pp. 9172-9180
ISSN:
1520-5851
Subject:
freezing point,   etc   ; biodegradation; bioremediation; cold; frozen soils; petroleum; polluted soils; soil electrical conductivity; surface area; technology; zeolites;     Show all 11 Subjects
Abstract:
... Manipulating the retention of unfrozen water in freezing contaminated soil to achieve prolonged bioremediation in cold climates remains unformulated. This freezing-induced biodegradation experiment shows how nutrient and zeolite amendments affect unfrozen water retention and hydrocarbon biodegradation in field-aged, petroleum-contaminated soils undergoing seasonal freezing. During soil freezing at ...
DOI:
10.1021/acs.est.0c07502

15. Effect of freezing and cool storage on carotenoid content and quality of zeaxanthin-biofortified and standard yellow sweet-corn (Zea mays L.)

Author:
Paula Calvo-Brenes; Tim O´Hare
Source:
Journal of food composition and analysis 2020 v.86 pp. 103353
ISSN:
0889-1575
Subject:
freezing; freezing point,   etc   ; Zea mays; carotenoids; color; frozen storage; starch; storage temperature; sugars; sweetcorn; total soluble solids;     Show all 11 Subjects
Abstract:
... Influence of freezing temperature at –20 °C and −80 °C up to three months, and influence of storage at 4 °C up to fifteen days on carotenoid content and quality parameters in zeaxanthin-biofortified and commercial yellow sweet-corn were evaluated. Cobs frozen and stored at -20 °C showed a decrease in carotenoid concentration, in which carotenoids from the β-branch were mainly affected, compared to ...
DOI:
10.1016/j.jfca.2019.103353

16. Formula for the estimation of urine osmolality in healthy cats

Author:
Tarek Bouzouraa; Benoit Rannou; Julien Cappelle; Jeanne-Marie Bonnet-Garin; Jean-Luc Cadoré
Source:
Research in veterinary science 2021 v.135 pp. 121-126
ISSN:
0034-5288
Subject:
freezing point,   etc   ; equations; glucose; intravenous injection; models; osmolality; potassium; regression analysis; research; sodium; ultrasonography; urea; urine; veterinary medicine;     Show all 14 Subjects
Abstract:
... A simple and intuitive formula for the estimation of urine osmolality (Uₒₛₘ) using the measured concentrations of major active urine osmolytes over a wide range of urine dilutions was proposed in healthy cats. Sixty-three urine samples were retrieved using ultrasound-guided cystocentesis from sixteen healthy cats under 5 years of age receiving intravenous infusion over a period of 24 h. Samples we ...
DOI:
10.1016/j.rvsc.2021.01.009

17. Ice nucleating behavior of different tree pollen in the immersion mode

Author:
Ellen Gute; Jonathan P.D. Abbatt
Source:
Atmospheric environment 2020 v.231 pp. 117488
ISSN:
1352-2310
Subject:
freezing; freezing point,   etc   ; atmospheric chemistry; droplets; evergreen trees; ice; ice nucleation; moieties; pollen; pollen sampling; total organic carbon;     Show all 11 Subjects
Abstract:
... Biological particles, including pollen, are released into the atmosphere in large amounts and carry components which can initiate ice nucleation (IN) under cloud conditions. In this study, we investigate in immersion mode the ice nucleation ability of eleven different tree pollen from deciduous and evergreen trees. Droplet freezing experiments are conducted, where we find the IN ability of filtere ...
DOI:
10.1016/j.atmosenv.2020.117488

18. The benefits of blend essential oil for GIFT tilapia on the digestion, antioxidant, and muscle quality during cold storage

Author:
Lijun Ning; Xiaoyong Zhang; Dongwei Zhang; Yanru Hu; Yanyou Li
Source:
Aquaculture 2021 v.533 pp. 736097
ISSN:
0044-8486
Subject:
freezing; freezing quality,   etc   ; Bacillus subtilis; Streptococcus agalactiae; Streptococcus iniae; albumins; amylases; antibacterial properties; antioxidants; blood serum; carvacrol; cold storage; digestion; disease resistance; enzyme activity; essential oils; feed additives; fish; fish fillets; florfenicol; growth retardation; hypoxia; immunity; intestines; livestock; mortality; muscles; pathogens; superoxide dismutase; thymol;     Show all 30 Subjects
Abstract:
... Essential oils have been used commercially as feed additives on livestock and poultry due to their broad spectrum antioxidant and disease resistance effects. However, their effects have not been well studied in fish. To this end, this study was conducted in two parts to evaluate the roles of blend essential oil (BEO, cinnamaldehyde, thymol, carvacrol) in fish. First, the growth inhibition effects ...
DOI:
10.1016/j.aquaculture.2020.736097

19. Fast grid preparation for time-resolved cryo-electron microscopy

Author:
Klebl David P.; Sobott Frank; White Howard D.; Muench Stephen P.
Source:
Journal of visualized experiments 2021 no.177 pp. e62199
ISSN:
1940-087X
Subject:
freezing,   etc   ; algorithms; cryo-electron microscopy; design; dispensers; experimental design; fields; ice; journals; mixing; pins; proteins; sampling; spraying; trapping; traps; wills;     Show all 17 Subjects
Abstract:
... The field of cryo-electron microscopy (cryo-EM) is rapidly developing with new hardware and processing algorithms, producing higher resolution structures and information on more challenging systems. Sample preparation for cryo-EM is undergoing a similar revolution with new approaches being developed to supersede the traditional blotting systems. These include the use of piezo-electric dispensers, ...
DOI:
10.3791/62199

20. Naturally sourced biosubstances for regulating freezing points in food researches: Fundamentals, current applications and future trends

Author:
You Tian; Zhiwei Zhu; Da-Wen Sun
Source:
Trends in food science & technology 2020 v.95 pp. 131-140
ISSN:
0924-2244
Subject:
freezing; freezing point,   etc   ; crystallization; energy conservation; food processing; food quality; frozen storage; genetically modified foods; ice; ice nucleation; packaging; proteins; solvents;     Show all 13 Subjects
Abstract:
... Foods have been commercially frozen for over 140 years. While improper frozen storage often causes food quality loss, the frozen damage induced by ice crystal growth is a serious problem. Freezing point (FP) regulation that promotes and inhibits ice nucleation, and controls ice crystal growth and recrystallization, may alleviate this problem. Some naturally sourced biosubstances with eco-friendly, ...
DOI:
10.1016/j.tifs.2019.11.009