Results 121 to 130 of about 84,560 (286)

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Additive Manufacturing of Ni‐Based Thermoelectric Materials for Waste Heat Recovery

Advanced Materials Technologies, EarlyView.
Thermoelectric generators convert waste heat into electricity but are constrained by conventional fabrication. Here, laser powder bed fusion enables direct printing of customised n‐type Cu60Ni40 and p‐type Ni90Cr10 legs. The assembled module achieves 0.8% efficiency at ΔT = 419 K, demonstrating scalable additive manufacturing of eco‐friendly, design ...
Karolin Amstein, Aayush Dobhal, Heiko Reith, Ran He, Julia Kristin Hufenbach, Kornelius Nielsch, Pingjun Ying   +6 more
wiley   +1 more source

Ga Doping Enables Precision Alloy‐to‐Wire Regulation: Synergistic Enhancement of the Mechanical Properties of CuSn Alloy and the Superconducting Properties of Nb3Sn

Advanced Science, EarlyView.
By adjusting Ga's doping in Cu–Sn alloy, an ultra‐high elongation of 100.8% is achieved in first time. Ga forms a stable solid solution structure and a stronger electron exchange with Cu. This enhances strength‐ductility synergistically by tuning SFE to balance twinning and slip.
Dazhuo Song, Juntao Zou, Jiayue Zhang, Xinhang Liang, Mengyu Shan, Yifan Liu, Jingqi Feng, Tong Dang, Lin Shi, Yuxuan Wang, Yuchen Song, Rong Fei, Shaodong Sun, Zhe Zhang, Lei Zhu, Lixing Sun   +15 more
wiley   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

Advanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen, Zixing Xu, Zerun Hao, Yanming Chen, Kai Xie, Haofan Yin, Xueying Wang, Jie Min, Sihan Sun, Baiding Chen, Chengxiu Ling, Mingming Xu, Yizhao Chen, Gang Ruan   +13 more
wiley   +1 more source

Synthesis and Characterization of Rutile TiO₂Nanopowders Doped with Iron Ions

Nanoscale Research Letters, 2009
Titanium dioxide nanopowders doped with different amounts of Fe ions were prepared by coprecipitation method. Obtained materials were characterized by structural (XRD), morphological (TEM and SEM), optical (UV/vis reflection and photoluminescence, and ...
Mirenghi Luciana, Šojić Daniela, Abramović Biljana, Abazović Nadica, Janković Ivana, Bibić Nataša, Čomor Mirjana   +6 more
doaj   +1 more source

Analisis Risiko Kesehatan Akibat Paparan TSP (Mn dan Cr) Terhadap Siswa dan Guru di Sekolah Dasar Studi Kasus SDN Pandeanlamper 01 dan SDN Srondol Wetan 03, Semarang [PDF]

, 2017
ABSTRAK Meningkatnya kebutuhan akan transportasi dapat mempengaruhi kualitas udara. Penggunaan bahan bakar yang tidak baik dan masih mengandung logam berat dapat mencemari udara.
Siallagan, Afni
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Synergistic Mn‐MOF Activation of Pistol Ribozymes for Cancer Immunotherapy

Advanced Science, EarlyView.
A Mn2+‐based metal–organic framework delivers a catalytic Pistol ribozyme for targeted PD‐L1 mRNA cleavage in tumor cells, with the released Mn2+ not only inducing immune activation in immune cells but also increasing the Pistol ribozyme catalytic activity.
Ming Zhao, Shan Qiao, Jie Bai, Jingjing Zhang, Zhiqin Xi, Zhenzhen Li, Xuelin Zhan, Ying Zhang, Xiaotong Yu, Yao Chen, Yijin Liu   +10 more
wiley   +1 more source

Rapid determination of indigestible NDF and the markers chromium oxide and titanium dioxide of supplement, forages and faecal samples by ICP-OES and near-infrared reflectance spectroscopy

Discover Animals
Accurate determination of dry matter digestibility (DMD) and total faecal output (FO) is necessary for estimating ruminant dry matter intake (DMI) under grazing conditions.
Andrea Milena Sierra-Alarcón, Diana Marcela Parra-Forero, Ana María Calvo-Salamanca, Erika Natalia Durán-Cruz, Laura Bibiana Gualdrón-Duarte, Claudia Ariza-Nieto, Ronnal Ortiz-Cuadros, Olga Lucia Mayorga-Mogollón   +7 more
doaj   +1 more source

Selenoprotein H Functions as a PPARα Coactivator to Link Selenium Homeostasis to Hepatic Lipid Metabolism and Protect against Steatohepatitis

Advanced Science, EarlyView.
Our study identifies selenium deficiency as a hallmark of MASH pathogenesis. Dietary selenium supplementation enhances hepatic fatty acid oxidation (FAO) and attenuates MASH progression by activating the PPARα pathway via selenoprotein H (SELENOH). This selenium‐SELENOH‐PPARα nexus redefines the functional scope of selenoproteins, moving from redox ...
Yuwei Zhang, Yuchen Wang, Binbin Li, Xin Li, Chenyu Liu, Yanhao Chen, Cheng Tian, Dongmei Wang, Xiaosong Gu, Chunping Jiang, Yuda Wei, Qiurong Ding   +11 more
wiley   +1 more source

Comparação de configurações para leitura de potássio em ICP-OES. [PDF]

, 2013
O objetivo do trabalho foi comparar diferentes configurações do ICP-OES na determinação da concentração de K, em amostras de tecido vegetal, buscando reduzir o tempo de leitura das amostras e, consequentemente, o custo operacional do ...
FERREIRA, M. I. L., GERMANO, M. G., OLIVEIRA JUNIOR, A.   +2 more
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