Results 61 to 70 of about 4,252,696 (304)

Memory device for two-dimensional radiant energy array computers [PDF]

, 1977
A memory device for two dimensional radiant energy array computers was developed, in which the memory device stores digital information in an input array of radiant energy digital signals that are characterized by ordered rows and columns.
Schaefer, D. H., Strong, J. P., III
core   +1 more source

Energetics of hydrogen impurities in aluminum and their effect on mechanical properties

, 2001
The effects of hydrogen impurities in the bulk and on the surface of aluminum are theoretically investigated. Within the framework of density functional theory, we have obtained the dependence on H concentration of the stacking fault energy, the cleavage
D. M. Ceperley, D. Vanderbilt, Daniel Orlikowski, Efthimios Kaxiras, F. Birch, G. A. Young, G. Kresse, G. Lu, G. Lu, G. Lu, Gang Lu, H. J. Monkhorst, H. K. Birnbaum, Ickjin Park, J. P. Perdew, J. R. Rice, J. R. Rice, M. Robertson, M. S. Duesbery, Olivier Politano, P. J. Ferreira, R. Wu, S. M. Myers, S. P. Lynch, T. Matsumoto, U. V. Waghmare, U. V. Waghmare, U. V. Waghmare, U. V. Waghmare, Y. Sun   +29 more
core   +1 more source

A new structural model for the Si(331)-(12x1) reconstruction [PDF]

, 2008
A new structural model for the Si(331)-(12x1) reconstruction is proposed. Based on scanning tunneling microscopy images of unprecedented resolution, low-energy electron diffraction data, and first-principles total-energy calculations, we demonstrate that
B. Z. Olshanetsky, Claude Monney, Clément Didiot, Corsin Battaglia, Eike Fabian Schwier, Giovanni Onida, Katalin Gaál-Nagy, Michael Gunnar Garnier, Philipp Aebi   +8 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Crystallization and particle size distribution of hydrothermally synthesized SAPO-34: an experimental and population balance study

Scientific Reports
A population balance-based model was developed to describe the crystallization kinetics of the SAPO-34 zeotype through the hydrothermal method at three distinct temperatures of 180, 200, and 220 °C. The synthesized SAPO-34 catalysts were characterized by
Mona Torabi Verki, Rouein Halladj, Sajjad Habibzadeh, Fariba Marzpour Shalmani   +3 more
doaj   +1 more source

Publisher Correction: All-inorganic cesium lead iodide perovskite solar cells with stabilized efficiency beyond 15%

Nature Communications, 2018
In the original version of this Article, the author name ‘Shengzhong Liu’ was incorrectly given as ‘Liu Shengzhong’. This has been corrected in both the PDF and HTML versions of the Article.
Kang Wang, Zhiwen Jin, Lei Liang, Hui Bian, Dongliang Bai, Haoran Wang, Jingru Zhang, Qian Wang, Shengzhong Liu   +8 more
doaj   +1 more source

Dual Passivation of Perovskite and SnO2 for High‐Efficiency MAPbI3 Perovskite Solar Cells

Advanced Science, 2021
So far, most techniques for modifying perovskite solar cells (PSCs) focus on either the perovskite or electron transport layer (ETL). For the sake of comprehensively improving device performance, a dual‐functional method of simultaneously passivating ...
Yali Chen, Xuejiao Zuo, Yiyang He, Fang Qian, Shengnan Zuo, Yalan Zhang, Lei Liang, Zuqin Chen, Kui Zhao, Zhike Liu, Jing Gou, Shengzhong (Frank) Liu   +11 more
doaj   +1 more source

Integrated Logic Circuits Based on Wafer-Scale 2D-MoS₂ FETs Using Buried-Gate Structures

Nanomaterials, 2023
Two-dimensional (2D) transition-metal dichalcogenides (TMDs) materials, such as molybdenum disulfide (MoS2), stand out due to their atomically thin layered structure and exceptional electrical properties.
Ju-Ah Lee, Jongwon Yoon, Seungkwon Hwang, Hyunsang Hwang, Jung-Dae Kwon, Seung-Ki Lee, Yonghun Kim   +6 more
doaj   +1 more source

Investigation of the interaction of some astrobiological molecules with the surface of a graphite (0001) substrate. Application to the CO, HCN, H2O and H2CO molecules

, 2009
Detailed semi-empirical interaction potential calculations are performed to determine the potential energy surface experienced by the molecules CO, HCN, H2O and H2CO, when adsorbed on the basal plane (0001) of graphite at low temperature.
Azzedine Lakhlifi, Beebe, Bernstein, Carlos, Cheng, Courty, Draine, Feller, Feller, Gale, González, Gordillo, Hansen, Hansen, Ionov, John P. Killingbeck, Karapetian, Kieslev, Lakhlifi, Lakhlifi, Lakhlifi, Lakhlifi, Lakhlifi, Li, Light, Lin, Marković, Mathis, Mendoza, Miller, Muñoz Caro, Noon, Phillips, Picaud, Piper, Rose, Rubeš, Sudiarta, Tielens, Tsuzuki, Vernov, Vidali, Vidali, Voter, Watanabe, Werder, Woon, Zimmerli   +47 more
core   +4 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source