Extraordinary infrared emittance property of Mo-, W-incorporated Sm0.5Sr0.5CoO3−δ

2017 ◽  
Vol 10 (06) ◽  
pp. 1750083
Author(s):  
Junyang Jin ◽  
Zhenggang Fang ◽  
Yaru Ni ◽  
Chunhua Lu ◽  
Zhongzi Xu
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Tape Casting ◽  
Solar Thermal ◽  
Radiative Cooling ◽  
The Novel ◽  
Cooling Systems ◽  
Potential Applications ◽  
Sintering Method

The Mo-, W-incorporated Sm[Formula: see text]Sr[Formula: see text]CoO[Formula: see text] ceramics were prepared by the tape casting and high temperature sintering method. The effects of Mo and W concentration on the structure and optical properties of Sm[Formula: see text]Sr[Formula: see text]CoO[Formula: see text] were investigated in detail. It was found that the Mo-, W-incorporated Sm[Formula: see text]Sr[Formula: see text]CoO[Formula: see text] exhibited extraordinary emittance property in the 3–5[Formula: see text][Formula: see text]m and 8–13[Formula: see text][Formula: see text]m (especially in the 11–13[Formula: see text][Formula: see text]m) wavelength ranges. The results suggest that the novel infrared emittance property of Mo- and W-incorporated Sm[Formula: see text]Sr[Formula: see text]CoO[Formula: see text] could find potential applications in solar thermal or radiative cooling systems.

Optical properties of high temperature molten salt mixtures for volumetrically absorbing solar thermal receiver applications

Solar Energy ◽  
2017 ◽  
Vol 153 ◽  
pp. 238-248 ◽  
Author(s):  
Melanie Tetreault-Friend ◽  
Luke A. Gray ◽  
Shapagat Berdibek ◽  
Thomas McKrell ◽  
Alexander H. Slocum
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Molten Salt ◽  
Solar Thermal ◽  
Thermal Receiver ◽  
Salt Mixtures

Highly transparent porous ZrO2 thin films: fabrication and optical properties

RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 35929-35933 ◽  
Author(s):  
Yu Chen ◽  
Aolin Li ◽  
Yige Li ◽  
Junfei Li ◽  
Guozhang Dai ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
High Temperature ◽  
Sol Gel ◽  
Dip Coating ◽  
Infrared Light ◽  
Insulating Layer ◽  
Coating Method ◽  
Potential Applications ◽  
Dip Coating Method

Porous ZrO2 thin films that are highly transparent to visible and infrared light were fabricated via a simple sol–gel dip-coating method, and have promising potential applications in solar cells as a high-temperature-resistant insulating layer.

scholarly journals Estimation of multi-layer coating efficiency for passive radiative cooling

2021 ◽  
Vol 5 (2) ◽  
pp. 37-46
Author(s):  
S. S. Jenblat ◽  
◽  
O. V. Volkova ◽  
Keyword(s):  
Mathematical Model ◽  
Optical Properties ◽  
Cooling System ◽  
Climatic Conditions ◽  
Cooling Power ◽  
Radiative Cooling ◽  
Cooling Systems ◽  
Coating Efficiency ◽  
Atmospheric Transmittance ◽  
Layer Coating

Passive radiative cooling is a promising direction in energy conservation and environmental protection. One of the ways to increase the efficiency of radiative cooling systems is the use of multi-layer coatings. In recent years, several novel materials with high emissivity have been proposed, which allow the creation of radiators that provide an average daily cooling power of approximately 100 W/m2 during daytime. Based on the developed mathematical model, the optical properties of the multi-layer coating for the radiative cooling system were evaluated by the Transfer Matrix Method and the effectiveness of radiative cooling was determined due to the use of the multi-layer coating in the climatic conditions of Syria (Latakia). The results of modeling the atmospheric transmittance in the summer months in Syria (Latakia) are presented. The developed mathematical model, methods for modeling atmospheric transmittance, calculating solar radiation, and evaluating the optical properties of multi-layer coating, allow determining an effective multi-layer coating for radiative cooling systems in any climatic conditions

Synthesis and biochemical properties of the novel, enzymatically stable mRNA cap analogues with versatile potential applications

2005 ◽  
Author(s):  
Marcin Kalek ◽  
Jacek Jemielity ◽  
Ewa Grudzien ◽  
Joanna Zuberek ◽  
Zbigniew M. Darzynkiewicz ◽  
...  
Keyword(s):  
Biochemical Properties ◽  
The Novel ◽  
Potential Applications

scholarly journals Influence of protein (human galectin-3) design on aspects of lectin activity

2020 ◽  
Vol 154 (2) ◽  
pp. 135-153 ◽  
Author(s):  
Gabriel García Caballero ◽  
Donella Beckwith ◽  
Nadezhda V. Shilova ◽  
Adele Gabba ◽  
Tanja J. Kutzner ◽  
...  
Keyword(s):  
Protein Design ◽  
Full Range ◽  
Biological Information ◽  
The Novel ◽  
Modular Assembly ◽  
Binding Partners ◽  
Galectin 3 ◽  
Potential Applications ◽  
Similar Affinity

Abstract The concept of biomedical significance of the functional pairing between tissue lectins and their glycoconjugate counterreceptors has reached the mainstream of research on the flow of biological information. A major challenge now is to identify the principles of structure–activity relationships that underlie specificity of recognition and the ensuing post-binding processes. Toward this end, we focus on a distinct feature on the side of the lectin, i.e. its architecture to present the carbohydrate recognition domain (CRD). Working with a multifunctional human lectin, i.e. galectin-3, as model, its CRD is used in protein engineering to build variants with different modular assembly. Hereby, it becomes possible to compare activity features of the natural design, i.e. CRD attached to an N-terminal tail, with those of homo- and heterodimers and the tail-free protein. Thermodynamics of binding disaccharides proved full activity of all proteins at very similar affinity. The following glycan array testing revealed maintained preferential contact formation with N-acetyllactosamine oligomers and histo-blood group ABH epitopes irrespective of variant design. The study of carbohydrate-inhibitable binding of the test panel disclosed up to qualitative cell-type-dependent differences in sections of fixed murine epididymis and especially jejunum. By probing topological aspects of binding, the susceptibility to inhibition by a tetravalent glycocluster was markedly different for the wild-type vs the homodimeric variant proteins. The results teach the salient lesson that protein design matters: the type of CRD presentation can have a profound bearing on whether basically suited oligosaccharides, which for example tested positively in an array, will become binding partners in situ. When lectin-glycoconjugate aggregates (lattices) are formed, their structural organization will depend on this parameter. Further testing (ga)lectin variants will thus be instrumental (i) to define the full range of impact of altering protein assembly and (ii) to explain why certain types of design have been favored during the course of evolution, besides opening biomedical perspectives for potential applications of the novel galectin forms.

scholarly journals Preparation and Properties of Electrospun Phenylethynyl—Terminated Polyimide Nano-Fibrous Membranes with Potential Applications as Solvent-Free and High-Temperature Resistant Adhesives for Harsh Environments

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1525
Author(s):  
Hao-ran Qi ◽  
Deng-xiong Shen ◽  
Yan-jiang Jia ◽  
Yuan-cheng An ◽  
Hao Wu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Elevated Temperatures ◽  
Solvent Free ◽  
High Tech ◽  
Molecular Weights ◽  
Lap Shear ◽  
High Adhesion ◽  
Potential Applications ◽  
Fibrous Membranes

High-temperature-resistant polymeric adhesives with high servicing temperatures and high adhesion strengths are highly desired in aerospace, aviation, microelectronic and other high-tech areas. The currently used high-temperature resistant polymeric adhesives, such as polyamic acid (PAA), are usually made from the high contents of solvents in the composition, which might cause adhesion failure due to the undesirable voids caused by the evaporation of the solvents. In the current work, electrospun preimidized polyimide (PI) nano-fibrous membranes (NFMs) were proposed to be used as solvent-free or solvent-less adhesives for stainless steel adhesion. In order to enhance the adhesion reliability of the PI NFMs, thermally crosslinkable phenylethynyl end-cappers were incorporated into the PIs derived from 3,3’,4,4’-oxydiphthalic anhydride (ODPA) and 3,3-bis[4-(4-aminophenoxy)phenyl]phthalide (BAPPT). The derived phenylethynyl-terminated PETI-10K and PETI-20K with the controlled molecular weights of 10,000 g mol−1 and 20,000 g mol−1, respectively, showed good solubility in polar aprotic solvents, such as N-methyl-2-pyrrolidinone (NMP) and N,N-dimethylacetamide (DMAc). The PI NFMs were successfully fabricated by electrospinning with the PETI/DMAc solutions. The ultrafine PETI NFMs showed the average fiber diameters (dav) of 627 nm for PETI-10K 695 nm for PETI-20K, respectively. The PETI NFMs showed good thermal resistance, which is reflected in the glass transition temperatures (Tgs) above 270 °C. The PETI NFMs exhibited excellent thermoplasticity at elevated temperatures. The stainless steel adherends were successfully adhered using the PETI NFMs as the adhesives. The PI NFMs provided good adhesion to the stainless steels with the single lap shear strengths (LSS) higher than 20.0 MPa either at room temperature (25 °C) or at an elevated temperature (200 °C).

A New Type of Cuprous-Cysteamine Sensitizers: Synthesis, Optical Properties and Potential Applications

2021 ◽  
pp. 100435
Author(s):  
Yan Wang ◽  
Noura Dawas Alkhaldi ◽  
Nil Kanatha Pandey ◽  
Lalit Chudal ◽  
Lingyun Wang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Potential Applications ◽  
New Type
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