Rolled-up island-bridge (RIB): A new and general electrode configuration design for wire-shaped stretchable micro-supercapacitor array

Author(s):  
Zhen Li ◽  
Jian Song ◽  
Haibo Hu ◽  
Changzhou Yuan ◽  
Mingzai Wu ◽  
...  

Wire-shaped stretchable supercapacitors could be a promising candidate as the compatible energy supply unit for wearable electronics. However, great challenges still exist in simultaneously achieving the goals of high energy...

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1515
Author(s):  
Radhouene Doggui ◽  
Hanin Al-Jawaldeh ◽  
Jalila El Ati ◽  
Rawhieh Barham ◽  
Lara Nasreddine ◽  
...  

The Eastern Mediterranean Region (EMR) is experiencing a nutrition transition, characterized by the emergence of overnutrition and micro-nutrient deficiencies. No previous study has comparatively examined nutrient intake in adults across countries in the EMR. This review examined the adequacy of nutrients in adults living in the EMR. Moreover, it analyzed the food balance sheets (FBS) for 1961–2018 to identify the trajectory of energy supply from macro-nutrients in the EMR. A systematic search was conducted from January 2012 to September 2020. Only observational studies were retained with a random sampling design. An assessment of the methodological quality was conducted. Levels of nutrient daily intake and their adequacy compared to the daily reference intake of the Institute of Medicine were reported across the region. No studies were identified for half of the region’s countries. Although nutrient energy intake was satisfactory overall, fat and carbohydrate intake were high. Intake of vitamin D, calcium, potassium, zinc, and magnesium were below that recommended. The analysis of the FBS data allowed for the identification of four linear patterns of trajectories, with countries in the EMR best fitting the ‘high-energy-supply from carbohydrate’ group. This systematic review warrants multi-sectorial commitment to optimize nutrient intake.


Author(s):  
Byungwook Kang ◽  
Hyungjun Kim ◽  
Myungkyu Kim ◽  
Duho Kim ◽  
Maenghyo Cho

Solid-state batteries (SSBs) have attracted significant interest owing to their relatively high energy density and nonflammability. LiNi0.5Mn1.5O4 (LNMO) is a promising candidate for cathodes in SSBs because of its high...


2019 ◽  
Vol 85 ◽  
pp. 01005
Author(s):  
Constantin Ionescu ◽  
Diana Tuţică ◽  
Roxana Pătraşcu ◽  
Cristian Dincă ◽  
Nela Slavu

The optimization of the energy supply solution of an industrial facility is a main objective of any management program within a company, having as desideratum: quality, safety and flexibility in energy supply. The electricity and heat supply (heat and cold) using a trigeneration plant is a modern technological solution, with high energy efficiency performance and low impact on the environment. Also, this technology is economically efficient, assuring the reduction of the global energy consumption of the industrial society, and implicitly the increasing of the profit. The input data considered in this paper are the values and the characteristics of the demands of the three energy forms belonging to the analysed industrial consumer. The structure of the thermal energy both as heat (technological steam, heating, domestic hot water) and cold (air conditioning) is considered. The consumption of the electricity covers the need of both the technological process and of the buildings (power supply and lighting). In a first stage, the most suitable technological solution for the specific conditions and characteristics of the needs is chosen. The multicriteria analysis of the proposed technological solution is performed during the next stage.


2016 ◽  
Vol 4 (6) ◽  
pp. 2096-2104 ◽  
Author(s):  
Fei Li ◽  
Hao Chen ◽  
Xiao Ying Liu ◽  
Shi Jin Zhu ◽  
Jia Qi Jia ◽  
...  

The development of portable and wearable electronics has promoted the increasing demand for high-performance power sources with high energy/power density, low cost, lightweight, as well as ultrathin and flexible features.


2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yi Luan ◽  
Ying Luan ◽  
Qi Feng ◽  
Xing Chen ◽  
Kai-Di Ren ◽  
...  

The normal function of the mitochondria is crucial for most tissues especially for those that demand a high energy supply. Emerging evidence has pointed out that healthy mitochondrial function is closely associated with normal heart function. When these processes fail to repair the damaged mitochondria, cells initiate a removal process referred to as mitophagy to clear away defective mitochondria. In cardiomyocytes, mitophagy is closely associated with metabolic activity, cell differentiation, apoptosis, and other physiological processes involved in major phenotypic alterations. Mitophagy alterations may contribute to detrimental or beneficial effects in a multitude of cardiac diseases, indicating potential clinical insights after a close understanding of the mechanisms. Here, we discuss the current opinions of mitophagy in the progression of cardiac diseases, such as ischemic heart disease, diabetic cardiomyopathy, cardiac hypertrophy, heart failure, and arrhythmia, and focus on the key molecules and related pathways involved in the regulation of mitophagy. We also discuss recently reported approaches targeting mitophagy in the therapy of cardiac diseases.


2021 ◽  
Vol 342 ◽  
pp. 04011
Author(s):  
Nicolae Daniel Fîţă ◽  
Emilia Grigorie

Energy security, alongside with industrial, food, societal, environmental and sustainable development, information, cyber, economic, defense and national order security, etc., is part of the concept of national security of a state. The level of security of a state is the ability of that state to aggregate resources internally and gain or maintain access to external economic resources. Energy security means being ensured in terms of raw material sources, control of transportation and distribution routes and alternatives. Sufficient and available raw material resources are an urgent prerequisite for achieving energy security. Any longer interruption of energy supply has a negative effect on the economic growth, the political stability and the welfare of the citizens of a state. The following elements of energy security instability can endanger a state’s energy security: risks (physical, economic, geopolitical, geostrategic, social, environmental protection, etc.); threats (terrorist action, political, industrial, economic and national instability, armed conflicts, piracy, etc.); dangers (lack of energy supply and/or raw materials, the finite nature of energy resources, use of energy as a pressure instrument or energy weapon, use of energy revenues to support undemocratic regimes, high energy costs for developing countries and global climate change) and vulnerabilities (natural and/or anthropogenic hazards). For the purpose to ensure the stability of national and EuroAtlantic security, the following factors are proposed by authors to achieve and ensure energy security: 25 proposed way to achieving energy security; 8 proposed way to ensuring energy security, and 9 proposed scenarios to quantification energy security almost complete. The final conclusion is: the energy security of a state is in fact the national security of that state.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Le Li ◽  
Yu Zhang ◽  
Hengyi Lu ◽  
Yufeng Wang ◽  
Jingsan Xu ◽  
...  

AbstractThe development of energy storage devices that can endure large and complex deformations is central to emerging wearable electronics. Hydrogels made from conducting polymers give rise to a promising integration of high conductivity and versatility in processing. However, the emergence of conducting polymer hydrogels with a desirable network structure cannot be readily achieved using conventional polymerization methods. Here we present a cryopolymerization strategy for preparing an intrinsically stretchable, compressible and bendable anisotropic polyvinyl alcohol/polyaniline hydrogel with a complete recovery of 100% stretching strain, 50% compressing strain and fully bending. Due to its high mechanical strength, superelastic properties and bi-continuous phase structure, the as-obtained anisotropic polyvinyl alcohol/polyaniline hydrogel can work as a stretching/compressing/bending electrode, maintaining its stable output under complex deformations for an all-solid-state supercapacitor. In particular, it achieves an extremely high energy density of 27.5 W h kg−1, which is among that of state-of-the-art stretchable supercapacitors.


2022 ◽  
Author(s):  
Xiaohong Ding ◽  
Ruilai Liu ◽  
Jiapeng Hu ◽  
Jingyun Zhao ◽  
Jinjin Wu ◽  
...  

The cost-effective synthesis of flexible energy storage devices with high energy and power densities is a challenge in wearable electronics. Here, we report a facile, efficient, and scalable approach for...


Author(s):  
Ying Guo ◽  
Rong Zhang ◽  
Shaoce Zhang ◽  
Yuwei Zhao ◽  
Qi Yang ◽  
...  

(Photo)Electrochemical nitrogen reduction for ammonia (NH3) production is an appealing alternative to the traditional high-energy Haber-Bosch reaction. However, the future of this approach is bleak because of the ultralow N2...


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