Results 51 to 60 of about 375,900 (302)

Multimode Adaptive Thermoregulation Enabled by Shape Morphing and Radiative Cooling Porous Polyurethane

Advanced Engineering Materials, EarlyView.
A shape‐morphing, porous polyurethane film combines passive radiative cooling with folding to deliver multilevel heating‐and‐cooling control. High solar reflectance and midinfrared emissivity keep surfaces up to 3.5 °C cooler in direct sunlight, while photothermal triggering folds the film to absorb solar heat.
Yoon Young Choi, Songtao Tang, Ho Kun Woo, Kai Zhou, Pranto Karua, Lili Cai   +5 more
wiley   +1 more source

LiVO3/LiZnVO4 Nanocomposite: High Performance Electrocatalyst for Ambient Nitrogen Reduction to Ammonia

Advanced Engineering Materials, EarlyView.
Lithium‐mediated electrocatalysis enables sustainable N2 fixation but hindered by parasitic Li deposition. An oxide‐oxide nanocomposite (LiVO3/LiZnVO4) structurally integrates lithium into active sites, suppressing plating and enhancing N2 activation and HER supression.
Naina Goyal, Dhamotharan Dharmasigamani, Fabio Pires, Ravi Kumar, Sanjay Mathur   +4 more
wiley   +1 more source

Surpassing the Path-Limited Resolution of a Fourier Transform Spectrometer with Frequency Combs

, 2015
Fourier transform spectroscopy based on incoherent light sources is a well-established tool in research fields from molecular spectroscopy and atmospheric monitoring to material science and biophysics.
Fermann, Martin E., Foltynowicz, Aleksandra, Jiang, Jie, Johansson, Alexandra C., Khodabakhsh, Amir, Kowzan, Grzegorz, Lee, Kevin F., Maslowski, Piotr, Mills, Andrew A., Mohr, Christian, Rutkowski, Lucile   +10 more
core   +2 more sources

Development of SiC Nanocomposites Using Direct Ink Writing Process

Advanced Engineering Materials, EarlyView.
Herein, feedstock inks containing polycarbosilane and various concentrations of SiC nanoparticles (SiCnp) are investigated for fabricating ceramic matrix composites using a DIW 3D printing process. Characterization results from physical measurement, microstructure analysis, and thermal and flexural testing suggested that high‐performance CMC samples ...
Jinchen Han, Israa Eltahir Ali Elfaki, Luke Weston, Chenggang Chen, Donald A. Klosterman, Li Cao   +5 more
wiley   +1 more source

Agreement Between Visual Assessment of Urinary Stones Morphology During Endo-Urological Procedure and Fourier Transform Infrared Spectroscopy- Based Composition Analysis: An Observational Study

Journal of Nepal Medical Association
Introduction: To assess the prediction success rate of the stone composition by visual assessment during endourological procedures in relation to stone analysis by Fourier Transform Infrared Spectroscopy.
Nirmal Rasali , Anil Shrestha , Parash Mani Shrestha , Robin Bahadur Basnet , Baikuntha Adhikari , Arvind Kumar Shah , Udita Mishra , Rudra Dahal, Bir Bahadur Thapa   +8 more
doaj   +1 more source

Frequency chirped Fourier-Transform spectroscopy

Communications Physics, 2023
Fast and high-resolution Fourier transform spectrometers are indispensable for cutting-edge infrared spectroscopy. In this study, the authors employed a newly-designed fast-rotating retroreflective, broadband delay line demonstrating fast dual-comb ...
Sergej Markmann, Martin Franckié, Mathieu Bertrand, Mehran Shahmohammadi, Andres Forrer, Pierre Jouy, Mattias Beck, Jérôme Faist, Giacomo Scalari   +8 more
doaj   +1 more source

Development of non-destructive methodology using ATR-FTIR with PCA to differentiate between historical Pacific barkcloth [PDF]

, 2019
Barkcloths, non-woven textiles originating from the Pacific Islands, form part of many museum collections and date back to the 18th and 19th centuries.
Holmes-Smith, A. Sheila, Lennard, Frances, Smith, Margaret J.   +2 more
core   +2 more sources

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

Fourier Transform Infrared Spectroscopy: An Innovative Method for the Diagnosis of Ovarian Cancer

Cancer Management and Research, 2021
Lei Li,1 Jinguang Wu,2 Limin Yang,3 Huizi Wang,4 Yizhuang Xu,2 Keng Shen1 1Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s ...
Li L, Wu J, Yang L, Wang H, Xu Y, Shen K
doaj  

Application of FTIR-ATR Spectroscopy for the quality control of wine spirits, brandies and grape marc spirits [PDF]

, 2013
This study attempted to apply a rapid method for the determination of methanol, acetaldehyde and ethyl acetate in wine spirits, brandies and grape marc spirits, using Fourier Transform Infrared – Attenuated Total Reflectance (ATR ...
Anjos, O., Caldeira, I.
core