1,2,3,4-Tetrakis(2-cyanoethoxy)butane (TCEB)-Assisted Construction of Self-Repair Electrode Interface Films to Improve the Performance of 4.5 V Pouch LiCoO2/Artificial Graphite Full Cells Operating at 45 °C

Author(s):  
Wenlian Wang ◽  
Xueyi Zeng ◽  
Huilin Hu ◽  
Tianxiang Yang ◽  
Zhen Ma ◽  
...  
2020 ◽  
Vol 1 (3) ◽  
pp. 47-63
Author(s):  
Hazel Tafadzwa Ngoshi

This article discusses the rhetorical construction of self-identity in Ian Smith's autobiography. I argue that in communicating self-identity and claiming historical agency, Smith deploys rhetoric born out of intertextuality. Intertextual references construct nation-building rhetoric that positions Smith as an agent of history. The article demonstrates that Smith's invocation of past texts and citations provokes unintended and problematic meanings. While Smith constructs rhetorical discourse, he is in turn also constructed by that discourse as a subject of history.


2013 ◽  
Vol 5 (3) ◽  
pp. 273-287 ◽  
Author(s):  
Valerio Di Nicola ◽  
Renato Di Nicola

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.


2021 ◽  
Author(s):  
Shuai Wang ◽  
Zheng Lu ◽  
Yuan Fang ◽  
Tian Zheng ◽  
Zidong Zhang ◽  
...  

Rational construction of self-supporting electrode has been extensively investigated in energy conversion and storage. Herein, hierarchical N-doped carbon encapsulated Ni3S2 grown on 3D porous Ni foam (H-Ni3S2@NC/NF) is controllably synthesized...


2021 ◽  
pp. 030631272110109
Author(s):  
Ole Pütz

The formulation of computer algorithms requires the elimination of vagueness. This elimination of vagueness requires exactness in programming, and this exactness can be traced to meeting talk, where it intersects with the indexicality of expressions. This article is concerned with sequences in which a team of computer scientists discuss the functionality of prototypes that are already implemented or possibly to be implemented. The analysis focuses on self-repair because this is a practice where participants can be seen to orient to meanings of different expressions as alternatives. By using self-repair, the computer scientists show a concern with exact descriptions when they talk about existing functionality of their prototypes but not when they talk about potential future functionality. Instead, when participants talk about potential future functionality and attend to meanings during self-repair, they use vague expressions to indicate possibilities. Furthermore, when the computer scientists talk to external stakeholders, they indicate through hedges whenever their descriptions approximate already implemented technical functionality but do not describe it exactly. The article considers whether the code of working prototypes can be said to fix meanings of expressions and how we may account for human agency and non-human resistances during development.


2021 ◽  
Vol 12 (16) ◽  
pp. 5865-5873
Author(s):  
Zachary K. Goldsmith ◽  
Marcos F. Calegari Andrade ◽  
Annabella Selloni

Ab initio molecular dynamics of an aqueous electrode interface reveal the electrostatic, structural, and dynamic effects of quantifiable voltage biases on water.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Clara Isabel Posada-Abadía ◽  
Carolina Marín-Martín ◽  
Cristina Oter-Quintana ◽  
María Teresa González-Gil

Abstract Background Violence against women places them in a vulnerable position with regard to homelessness. Although sometimes invisible, women’s homelessness is a complex reality shrouded in dramatic biographies that should be sensitively addressed to avoid revictimization. Methods With the aim of understanding the chaotic discourse of homeless women’s experiences of violence, a qualitative single-case study was conducted using the photo-elicitation technique. Data were analyzed in accordance with grounded theory. Results The participant’s discourse could be summarized in the following categories: “Living in a spiral of violence”, “Confronting vulnerability and violence”, “Being a strong woman”, “New family networks”, “Re-building mother–child relationships”, and “Nurturing spiritual wellbeing”. Conclusions Supporting homelessness women requires an approach that focuses on the prevention of re-victimization and the consequences of violence in terms of physical and mental health. Shelters are spaces of care for recovery and represent referential elements for the re-construction of self.


Sign in / Sign up

Export Citation Format

Share Document