Results 61 to 70 of about 978,079 (293)

Excellent energy storage properties in lead-free ferroelectric ceramics via heterogeneous structure design

Nature Communications
Dielectric capacitors with ultrahigh power density have emerged as promising candidates for essential energy storage components in electronic and electrical systems. They enable enhanced integration, miniaturization, and lightweight design.
Qizhen Chai, Zhaobo Liu, Zhongqi Deng, Zhanhui Peng, Xiaolian Chao, Jiangbo Lu, Houbing Huang, Shujun Zhang, Zupei Yang   +8 more
doaj   +1 more source

Remarkable Hydrogen Storage on Beryllium Oxide Clusters: First Principles Calculations

, 2016
Since the current transportation sector is the largest consumer of oil, and subsequently responsible for major air pollutants, it is inevitable to use alternative renewable sources of energies for vehicular applications. The hydrogen energy seems to be a
Shinde, Ravindra, Tayade, Meenakshi
core   +2 more sources

Giant energy storage and power density negative capacitance superlattices

Nature
Dielectric electrostatic capacitors1, because of their ultrafast charge-discharge, are desirable for high-power energy storage applications. Along with ultrafast operation, on-chip integration can enable miniaturized energy storage devices for emerging autonomous microelectronics and microsystems2-5.
Suraj S. Cheema, Nirmaan Shanker, Shang-Lin Hsu, Joseph Schaadt, Nathan M. Ellis, Matthew Cook, Ravi Rastogi, Robert C. N. Pilawa-Podgurski, Jim Ciston, Mohamed Mohamed, Sayeef Salahuddin   +10 more
openaire   +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

Energy Efficiency Comparison of Hydraulic Accumulators and Ultracapacitors

Energies, 2020
Energy regeneration systems are a key factor for improving energy efficiency in electrohydraulic machinery. This paper is focused on the study of electric energy storage systems (EESS) and hydraulic energy storage systems (HESS) for energy regeneration ...
Jorge Leon-Quiroga, Brittany Newell, Mahesh Krishnamurthy, Andres Gonzalez-Mancera, Jose Garcia-Bravo   +4 more
doaj   +1 more source

Scalable production of graphene inks via wet-jet milling exfoliation for screen-printed micro-supercapacitors

, 2019
The miniaturization of energy storage units is pivotal for the development of next-generation portable electronic devices. Micro-supercapacitors (MSCs) hold a great potential to work as on-chip micro-power sources and energy storage units complementing ...
Bellani, Sebastiano, Bonaccorso, Francesco, Castillo, Antonio Esau Del Rio, Curreli, Nicola, Martin-Garcia, Beatriz, Oropesa-Nunez, Reinier, Petroni, Elisa, Prato, Mirko   +7 more
core   +1 more source

Entropic Accelerating Universe [PDF]

, 2010
To accommodate the observed accelerated expansion of the universe, one popular idea is to invoke a driving term in the Friedmann-Lemaitre equation of dark energy which must then comprise 70% of the present cosmological energy density.
Baum, Damien A. Easson, Easson, Egan, Frampton, Friedmann, George F. Smoot, Hawking, Lemaître, Padmanabhan, Paul H. Frampton, Perlmutter, Reiss, Riess, Tolman, Tolman, Unruh, Verlinde   +17 more
core   +5 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Atomic-scale combination of germanium-zinc nanofibers for structural and electrochemical evolution [PDF]

, 2019
Alloys are recently receiving considerable attention in the community of rechargeable batteries as possible alternatives to carbonaceous negative electrodes; however, challenges remain for the practical utilization of these materials.
AS Arico, AV Chadwick, BR Wang, D Li, DR Kumar, GA Agarkova, I Son, J Echeverria, J Hwang, J Lee, J Liu, J Lu, J Mizusaki, J Ryu, J Yang, J Zhao, JH Strange, JI Lee, JJ Gao, JY Cheong, KH Seng, L Qian, LY Lim, MH Hsieh, MH Park, MS Wang, N Nitta, P Hidalgo, RW Mo, S Choi, S Yoon, SP Wu, TH Kim, W He, W Xiao, WH Li, XH Liu, XL Wang, XS Liu, Y An, Y An, Y An, Y An, Y An, Y An, Y Sun, Y Yuan., YH Xie, YW Lee   +48 more
core   +2 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source