Results 111 to 120 of about 644,421 (308)

Two-phase flow and oxygen transport in the perforated gas diffusion layer of proton exchange membrane fuel cell [PDF]

, 2019
Liquid water transport in perforated gas diffusion layers (GDLs)is numerically investigated using a three-dimensional (3D)two-phase volume of fluid (VOF)model and a stochastic reconstruction model of GDL microstructures.
Bao, Z, Jiao, K, Niu, Z, Wang, Y, Wu, J, Yin, Y   +5 more
core  

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

RANCANG BANGUN PULSE OXIMETRY DIGITAL BERBASIS MIKROKONTROLLER [PDF]

, 2011
Pulse oximetry is a non-invasive method to measure the percentage of hemoglobin (Hb) of saturation with oxygen in the blood. This method uses different wavelengths of redlight (660 nm) and infrared light (940 nm) is captured by the detection sensor ...
Arantra, Andrey Arantra Putra
core  

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

Advanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet, Zhuoran Zhong, Elí Sánchez‐González, Camille L. Slagle, Ilich A. Ibarra, Katherine A. Mirica   +5 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Predicting low oxygen in patients with acute COVID-19 infection isolating at home: a clinical prediction model

BMJ Open Respiratory Research
Rationale Identifying patients who could be safely managed at home versus those needing hospitalisation was a particular concern during early COVID-19.
Nick Daneman, Nisha Andany, Sameer Masood, Teresa To, Alex Mariakakis, Adrienne K Chan, Andrea Gershon, Philip W Lam, Robert Wu, Andrew Simor, Christopher Graham, Eyal de Lara, Tiffany Chan, Joseph Munn, Daniyal Liaqat, Salaar Liaqat, Junlin Chen, Vikram Comondore, Alice Y Tu   +18 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Using a non-invasive assessment of lung injury in a murine model of acute lung injury

, 2013
Arterial oxygen saturation has not been assessed sequentially in conscious mice as a direct consequence of an in vivo murine model of acute lung injury.
Lax, S, Takata, M, Thickett, DR, Wilson, MR   +3 more
core   +1 more source

Trap‐Modified Inverted Organic Photodetectors via Layer‐by‐Layer Processing with Poly(N‐vinylcarbazole) Additives

Advanced Functional Materials, EarlyView.
Trap state engineering in inverted organic photodetectors (OPDs) is achieved via combined layer‐by‐layer (LbL) processing and poly(N‐vinylcarbazole) (PVK) incorporation. LbL reduces the trap density while PVK additives gradually shift trap states from shallow band‐edge to deep mid‐gap levels, tailoring the energy distribution.
Jingwei Yi, Yi Yang, Yusen Pei, Apurva Gadikar, Vahid Mahdikhah, Myratgeldi Kotyrov, Seung Hyun Kim, Kenan Gundogdu, Wei You, Harald Ade, Franky So   +10 more
wiley   +1 more source

Hubungan Merokok Dengan Saturasi Oksigen Pada Pegawai Di Fakultas Kedokteran Universitas Sam Ratulangi Manado [PDF]

, 2016
: Smoking is an overt behavior in which smokers inhale tobacco rolls. The degree of smoking can be determined based on the Brinkman index. Global Adults Tobacco Survey (GATS) estimates there are currently 7.9 billion adults who are actively smoking and 3.
Doda, V. (Vanda), Septia, N. (Nindirah), Wungouw, H. (Herlina)   +2 more
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