Results 61 to 70 of about 278,933 (298)

The Role of Chemistry Across Disciplines From Humanities to Life Sciences in Understanding Complexity and Emergence

Angewandte Chemie, EarlyView.
This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe, Josef Wachtveitl, Alexander Heckel, Florian Buhr, Sabrina Toews, Thomas M. Schimmer   +5 more
wiley   +2 more sources

A novel coupled progressive corrosion–water hammer inrush model for deep coal seam floors

Journal of Rock Mechanics and Geotechnical Engineering
The mining industry is frequently subjected to various disasters, one of the major concerns is water-related disasters, particularly seam floor water inrush. These disasters pose significant threats to the safety and production of deep coal mines.
Genshui Wu, Jianping Zuo, Lisong Zhao
doaj   +1 more source

Relationship between the Basic Geometric Form and Hydrodynamic Characteristics of Water Hammer Pump

Journal of Fluid Science and Technology, 2010
This study focuses on water hammer pumps that can effectively use the water hammer phenomenon and allow fluid transport without drive sources, such as electric motors. An understanding of water hammer pumps' operating conditions and an evaluation of
Sumio SAITO, Yoshimi NAGATA, Masaaki TAKAHASHI, Daijiro INOUE, Yuki HOSHINO   +4 more
doaj   +1 more source

Direct Formation of Structural Components Using a Martian Soil Simulant. [PDF]

, 2017
Martian habitats are ideally constructed using only locally available soils; extant attempts to process structural materials on Mars, however, generally require additives or calcination.
Chen, Tzehan, Chow, Brian J, Qiao, Yu, Zhong, Ying   +3 more
core   +1 more source

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

Advanced Materials Technologies, EarlyView.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi, Jamal Alhourani, Yury Gogotsi, Mohammad H. Zarifi   +3 more
wiley   +1 more source

Acceptorless Dehydrogenative Polymerization

Angewandte Chemie, EarlyView.
Acceptor‐less dehydrogenative polymerization (ADP) enables the atom‐economic step‐growth synthesis of different type of polymers directly from simple alcohols, releasing H2 as the sole by‐product. This review outlines the mechanistic foundations, catalytic systems, and emerging polymer architectures of ADP, highlighting its potential as a sustainable ...
Xin Liu, Jessica L. Lathrop, Garret M. Miyake   +2 more
wiley   +2 more sources

Dynamic transient analysis of the reactor core barrel due to sudden rupture of the recirculation line piping [PDF]

, 2017
We have analyzed sudden rupture of the primary cooling loop which causes a water hammer event for the reactor core barrel. Assuming that core barrel is a thin shell, we have performed dynamic stress and strain calculations in the frequency domain.
Dubyk, Y. R., Orynyak, I. V.
core  

FiN‐Kiri: Fabric‐Based Inflatable Kirigami Actuator for Multimodal Soft Robots

Advanced Robotics Research, EarlyView.
This study introduces a type of inflatable fabric‐based kirigami actuator capable of performing bending motion. The actuator is utilized as soft grippers, a crawling robot and a swimming robot. The crawling robot demonstrated extraordinary motion capabilities, such as moving forward, turning and navigating a narrow tunnel.
Yang Yu, Yupei Zhang, Yanqi Yin, Yehui Wu, Jinyao Zhang, Ruiyu Bai, Jiaqiang Yao, Kewei Su, Chenyi Yu, Zhicheng Tian, Naipeng Li, Zhuang Zhang, Bo Li   +12 more
wiley   +1 more source

Photocatalytic Cross‐Coupling of Phenols and Heteroaryl Halides With Machine Learning‐Guided Reaction Prediction

Angewandte Chemie, EarlyView.
Photocatalytic cross‐coupling: A redox‐neutral photochemical method enables direct C(sp2)─C(sp2) bond formation between phenols and heteroaryl halides using an organic dye and base. Complementary radical generation allows efficient cross‐coupling in up to 91% yield. Mechanistic studies, DFT, HTE, and machine learning rationalize and predict reactivity,
Matthew C. Carson, Alice Wu, Kalyana B. Duggal, Madeline E. Rotella, Marisa C. Kozlowski   +4 more
wiley   +2 more sources

Full dimensional (15D) quantum-dynamical simulation of the protonated water-dimer II: infrared spectrum and vibrational dynamics

, 2007
The infrared absorption spectrum of the protonated water dimer (H5O2+) is simulated in full dimensionality (15D) in the spectral range 0-4000 cm-1. The calculations are performed using the Multiconfiguration Time-Dependent Hartree (MCTDH) method for ...
Gatti, Fabien, Meyer, Hans-Dieter, Vendrell, Oriol   +2 more
core   +3 more sources