Results 141 to 150 of about 14,471,209 (326)

Assessing the feasibility of integrating form-stable phase change material composites with cementitious composites and prevention of PCM leakage

open access: yes, 2017
In this study, the feasibility of integrating form-stable phase change material (FS-PCM) composites into cementitious composites was investigated. Two different FS-PCM composites were fabricated by using paraffin as functional PCM and hydrophilic and ...
Wilson, John   +3 more
core   +1 more source

Determining the Relationship Between Composition, Structure, and Device Properties of GexSe1‐x‐Based Selector‐Only Memory

open access: yesAdvanced Electronic Materials, EarlyView.
Composition‐dependent structural evolution in GeXSe1‐X selector‐only memory (SOM) is correlated with device switching behavior. Increasing Ge strengthens network rigidity, suppresses atomic motion, and stabilizes threshold switching, while narrowing the memory window. The revealed structure–property relationship provides a guideline for compositionally
Tien Anh Nguyen   +9 more
wiley   +1 more source

Enhancement of Dissymmetry Factors Through Axial Elongation of Hetero[n]helicenes

open access: yesAngewandte Chemie, EarlyView.
A benzofuran scaffolding strategy enables the synthesis of hetero[9]‐, [12]‐, and [15]helicenes. Structural and chiroptical analyses demonstrate that systematic axial elongation increases helical distortion and significantly amplifies luminescence dissymmetry.
Jeppe S. Mogensen   +7 more
wiley   +2 more sources

New structure for better thermal resistance of building with phase change material: Response to milder thermal change than common walls

open access: yesCase Studies in Thermal Engineering
By adding the insulation with phase change material (PCM), the building's thermal resistance was enhanced. Relying on the capabilities of DesignBuilder, 3584 different cases were defined to determine the effect of different input parameters on energy ...
Yan He   +7 more
doaj   +1 more source

Core and π‐Bridge Engineering to Deconstruct Y6‐Series into Modular Non‐Fused Acceptors: DFT‐Guided Structure‐Property Map for Organic Solar Cells

open access: yesAdvanced Electronic Materials, EarlyView.
The rigid fused backbone of Y6‐series acceptors is deconstructed into a modular, non‐fused A‐π‐A′‐π‐A architecture. Comprehensive quantum chemical simulations reveal that strategic core and π‐bridge engineering preserves strong near‐infrared light‐harvesting and enhances intramolecular charge‐transfer character.
Qurat ul Ain   +7 more
wiley   +1 more source

Evidence for a Cu(II)‐Catalysed CuAAC Reaction: A Combined Experimental and Computational Study

open access: yesAngewandte Chemie, EarlyView.
A new mechanistic pathway for the CuAAC reaction has been found to operate under specific reaction conditions. The pathway is catalysed by Cu(II) through a self‐assembled dinuclear Cu(II) complex that incorporates the triazole product. Computational analysis and assessment of generality are reported.
Matthew J. Andrews   +12 more
wiley   +2 more sources

A study on thermal characteristics of phase change material (PCM) in gypsum board for building application

open access: yes, 2005
Using fatty acids as phase change materials (PCMs), it is possible to store a large amount of thermal energy in a small mass and with a narrow temperature transition.
Chuah, T. G.   +5 more
core   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

Hydration‐Gated Photoinduced Electron Transfer in BODIPY Dyes

open access: yesAngewandte Chemie, EarlyView.
Hydration switches photoinduced electron transfer (PET) ON in alkoxy‐coordinated BODIPY dyes via specific hydrogen bonding. This gating yields a fluorescence lifetime span of ∼6 ns, enabling fluorescence lifetime imaging microscopy (FLIM) contrast in live cells and organoids. ABSTRACT Fluorescent probes based on photoinduced electron transfer (PET) are
Venkata N. K. Mamillapalli   +9 more
wiley   +2 more sources

Heat transfer performance of Li-ion battery pack using composite phase change material A review

open access: yesJournal of Thermal Engineering
Electric Vehicles (EVs) rely on Li-ion batteries (Li-ion), which perform best in an operating temperature range of 15ÅãC to 40ÅãC. However, in regions where ambient temperatures are higher, EVs can catch fire even with thermal management systems.
Vinayak T. MANDLIK   +2 more
doaj   +1 more source

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