Results 71 to 80 of about 275,010 (320)

Analysis of mechanical properties and energy evolution mechanism of frozen calcareous clay under multi-factor interaction

Scientific Reports
Research investigating the complex mechanical properties and energy evolution mechanisms of frozen calcareous clay under the influence of multiple factors is crucial for optimizing the artificial ground freezing method in shaft sinking, thereby enhancing
Jihao Feng, Hao Shi, Chuanxin Rong, Lei Song, Wei Long, Jianpeng Liu, Di Wei, Gangjian An   +7 more
doaj   +1 more source

Highly Reliable Yarn-Type Supercapacitor Using Conductive Silk Yarns with Multilayered Active Materials

Journal of Natural Fibers, 2022
The fibrous supercapacitor is a promising candidate for wearable energy-storage systems due to excellent mechanical reliability under deformation. In this study, a mechanically reliable fibrous supercapacitor with high volumetric power density and energy
Youngjae Seo, Heebo Ha, Jun Young Cheong, Mirine Leem, Sozan Darabi, Paolo Matteini, Christian Müller, Tae Gwang Yun, Byungil Hwang   +8 more
doaj   +1 more source

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

Advanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza, Danilo Bruson, Manuela Galati, Luca Iuliano   +3 more
wiley   +1 more source

Noncollapsible, Meringue‐Structured Cathodes for a Volumetrically Efficient Li–S Battery

Small Structures
Lithium–sulfur (Li–S) batteries promise exceptional gravimetric energy densities but are hindered by their poor volumetric performance. This is further exacerbated when taking into account the considerable volume expansion of sulfur during cycling ...
Petar Jovanović, Mahdokht Shaibani, Maleesha M. Nishshanke, Ali Zavabeti, Matthew R. Hill, Mainak Majumder   +5 more
doaj   +1 more source

Li-rich oxide micro-bricks with exposed {010} planes to construct ultrahigh-compaction hierarchical cathodes for Li-ion batteries

eScience
Although lithium-rich manganese-based (LRM) cathode materials have high capacity (> ​250 ​mAh ​g−1) due to their multi-electron redox mechanisms and offer cost advantages due to their high Mn content, challenges remain before they can achieve ...
Yongjian Li, Tong Sun, Chenxing Yang, Yuefeng Su, Cai Liu, Xinyu Zhu, Yihong Wang, Siyuan Ma, Xinyu Wang, Yizhi Zhai, Wenlong Kang, Lai Chen, Meng Wang, Liang Zhang, Bin Wang, Qing Huang, Yibiao Guan, Feng Wu, Ning Li   +18 more
doaj   +1 more source

VUV irradiance measurement of a 2.45 GHz microwave-driven hydrogen discharge

, 2015
Absolute values of VUV-emission of a 2.45 GHz microwave-driven hydrogen discharge are reported. The measurements were performed with a robust and straightforward method based on a photodiode and optical filters.
Kalvas, T., Koivisto, H., Komppula, J., Kronholm, R., Laulainen, J., Myllyperkiö, P., Tarvainen, O.   +6 more
core   +1 more source

Expander selection for an on board ORC energy recovery system [PDF]

, 2017
This paper deals with the comparison between volumetric expanders (screw, scroll and rotary vane) and an Inlet Forward Radial (IFR) micro turbine for the exploitation of an on board Organic Rankine Cycle (ORC) energy recovery system.
Capata, Roberto, Fabio, Pantano
core   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Round-trip efficiencies of green ammonia and green hydrogen

Next Energy
The water electrolysis voltage of conventional green ammonia was 1.84 V. The voltage with the same energy consumption of gray ammonia was 1.50 V, which was similar to the thermoneutral voltage (1.48 V).
Yoshitsugu Kojima
doaj   +1 more source

Design-Considerations regarding Silicon/Graphite and Tin/Graphite Composite Electrodes for Lithium-Ion Batteries

Scientific Reports, 2018
An analytical model is proposed to investigate properties of composite electrodes that utilize more than one active material. We demonstrate how the equations can be applied to aid in the design of electrodes by comparing silicon-graphite and tin ...
Manuel Otero, Christopher Heim, Ezequiel P. M. Leiva, Norbert Wagner, Andreas Friedrich   +4 more
doaj   +1 more source