Results 31 to 40 of about 41,022 (244)

Research Progress and Prospect on Laser Drilling Technology

Shiyou jixie, 2016
The conventional rotary drilling usually leads to drilling tool wear, which results in frequent drill bit replacement, causing long drilling period and high cost.The laser drilling technology could greatly improve the drilling speed and shorten the ...
Zhang Shiyi, Han Bin, Li Meiyan, Wang Yong, Sun Jianan   +4 more
doaj  

Experimental control of transport resonances in a coherent quantum rocking ratchet

, 2016
The ratchet phenomenon is a means to get directed transport without net forces. Originally conceived to rectify stochastic motion and describe operational principles of biological motors, the ratchet effect can be used to achieve controllable coherent ...
Denisov, Sergey, Grossert, Christopher, Hänggi, Peter, Leder, Martin, Weitz, Martin   +4 more
core   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

Advanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du, Kaidi Zhang, Liang Wang, Di Zhao, Mengqing Hu, Mingli Li, Ming Zhou, Zhenzhen Wu, Mengyang Dong, Bo Fu, Porun Liu, Yun Wang, Hongxia Wang, Yuantong Gu, Lei Zhang   +14 more
wiley   +1 more source

Ab initio calculations of structures and stabilities of (NaI)_nNa+ and (CsI)_nCs+ cluster ions [PDF]

, 1998
Ab initio calculations using the Perturbed Ion model, with correlation contributions included, are presented for nonstoichiometric (NaI)_nNa+ and (CsI)_nCs+ (n=1-14) cluster ions.
Aguado, A., Alonso, J. A., Ayuela, A., Lopez, J. M.   +3 more
core   +2 more sources

Controlling Intestinal Organoid Polarity using Synthetic Dynamic Hydrogels Decorated with Laminin‐Derived IKVAV Peptides

Advanced Healthcare Materials, EarlyView.
Design rules are presented to control intestinal organoid polarity in fully synthetic hydrogels. The laminin‐derived IKVAV sequence is crucial to obtain correct intestinal organoid polarity. Increasing hydrogel dynamics further supports the growth of correctly polarized intestinal organoids, while a bulk level of stiffness (G’ ≈ 0.7 kPa) is crucial to ...
Laura Rijns, Joost A. P. M. Wijnakker, Victor A. Veenbrink, Riccardo Bellan, Fenna W. B. Craenmehr, Simone I. S. Hendrikse, Johnick F. van Sprang, Wim de Lau, E. W. Meijer, Hans Clevers, Patricia Y. W. Dankers   +10 more
wiley   +1 more source

Particle correlated characteristics of coal rock crushed by disc cutters

矿业科学学报
The morphology, particle size distribution and dust production of crushed coal rock formed by the interaction between mechanical cutting tools and coal rock are crucial indicators that reflect rock breaking efficiency and operation safety.
XU Peng, LIU Chunsheng, CHENG Shuo, DANG Zhenqian   +3 more
doaj   +1 more source

Experimental evidence of accelerated seismic release without critical failure in acoustic emissions of compressed nanoporous materials

, 2018
The total energy of acoustic emission (AE) events in externally stressed materials diverges when approaching macroscopic failure. Numerical and conceptual models explain this accelerated seismic release (ASR) as the approach to a critical point that ...
Baró, Jordi, Castillo, Pedro O., Dahmen, Karin A., Davidsen, Jörn, Nataf, Guillaume F., Planes, Antoni, Salje, Ekhard K. H., Vives, Eduard   +7 more
core   +1 more source

Proceedings of the Thirteenth International Conference on Time-Resolved Vibrational Spectroscopy [PDF]

, 2007
The thirteenth meeting in a long-standing series of “Time-Resolved Vibrational Spectroscopy” (TRVS) conferences was held May 19th to 25th at the Kardinal Döpfner Haus in Freising, Germany, organized by the two Munich Universities - Ludwig-Maximilians ...
Laubereau, Alfred, Mantel, Karl-Heinz, Zinth, Wolfgang   +2 more
core   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source

Experimental Study on Laser Rock Breaking and Discussion on its Application in Petroleum Engineering

Shiyou jixie, 2017
Domestic scholars have carried out a lot of theoretical researches on laser technology application in petroleum engineering field. To verify the theoretical analysis and the actual effect of laser rock breaking, a laser-rock test system has been ...
Zhang Jiankuo
doaj