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Incomplete LU Preconditioner Based on Max-Plus Approximation of LU Factorization
We present a new method for the a priori approximation of the orders of magnitude of the entries in the LU factors of a complex or real matrix A. This approximation is used to determine the positions of the largest entries in...
Incomplete LU Preconditioner Based on Max-Plus Approximation of LU Factorization
We present a new method for the a priori approximation of the orders of magnitude of the entries in the LU factors of a complex or real matrix A. This approximation is used to determine the positions of the largest entries in...
A Pilot Project Using a Community Approach to Support Child Protection Services in China
This article documents how a community approach was used as part of developing a child protection service in China. In order to demonstrate the potential of the community approach, it is first argued that the fragmented...
An Unusual Phase Transition Driven by Vibrational Entropy Changes in a Hybrid Organic–Inorganic Perovskite
Wenjun Wei, Keith Butler, Guoqiang Feng, Christopher J. Howard, Wei Li, Michael Carpenter, Peixiang Lu, Aron Walsh, Anthony K. Cheetham
Jul 16, 2018
The driving forces for the phase transitions of ABX3 hybrid organic–inorganic perovskites have been limited to the octahedral tilting, order–disorder, and displacement. Now, a complex structural phase transition has been...
Mild Hydrothermal Crystallization of Heavy Rare-Earth Chromite RECrO3 (RE = Er, Tm, Yb, Lu) Perovskites and Magnetic Properties.
Shan Wang, Xiaofeng Wu, Tiesheng Wang, Jiaqi Zhang, Chenyang Zhang, Long Yuan, Xiaoqiang Cui, Dayong Lu
Feb 18, 2019
Crystallization of perovskite structure chromites (ACrO3) in aqueous conditions is difficult owing to the amphoteric nature of the Cr3+ in the alkaline-mediated reaction conditions. This is especially true for the small metal...
A Pilot Project Using a Community Approach to Support Child Protection Services in China
This article documents how a community approach was used as part of developing a child protection service in China. In order to demonstrate the potential of the community approach, it is first argued that the fragmented...
The impact of autonomous ships in regional waterways
Technological innovation has been reshaping all walks of life, and the marine shipping industry is no exception. Autonomous vessels have gained significant attention due to their numerous advantages. However, regulatory...
An Unusual Phase Transition Driven by Vibrational Entropy Changes in a Hybrid Organic–Inorganic Perovskite
Wenjun Wei, Keith Butler, Guoqiang Feng, Christopher J. Howard, Wei Li, Michael Carpenter, Peixiang Lu, Aron Walsh, Anthony K. Cheetham
Jul 16, 2018
The driving forces for the phase transitions of ABX3 hybrid organic–inorganic perovskites have been limited to the octahedral tilting, order–disorder, and displacement. Now, a complex structural phase transition has been...
The impact of autonomous ships in regional waterways
Technological innovation has been reshaping all walks of life, and the marine shipping industry is no exception. Autonomous vessels have gained significant attention due to their numerous advantages. However, regulatory...
Catalytic trajectory of a dimeric nonribosomal peptide synthetase subunit with an inserted epimerase domain.
Jialiang Wang, Dandan Li, Lu Chen, Wei Cao, Liangliang Kong, Wei Zhang, Tristan Croll, Zixin Deng, Jingdan Liang, Zhijun Wang
Mar 05, 2022
Nonribosomal peptide synthetases (NRPSs) are modular assembly-line megaenzymes that synthesize diverse metabolites with wide-ranging biological activities. The structural dynamics of synthetic elongation has remained unclear....
Cracking the enigma of mitochondrial-DNA variants and cancer.
A recent study by Yuan et al., [Ref. 11] published in Nature Genetics, demonstrated multidimensional molecular alterations of mitochondrial DNA in human cancers and provide an on-line catalogue of mitochondrial genomes in many...
Optimisation for interconnected energy hub system with combined ground source heat pump and borehole thermal storage
Ground source heat pumps (GSHP) give zero-carbon emission heating at a residential level. However, as the heat is discharged, the temperature of the ground drops, leading to a poorer efficiency. Borehole inter-seasonal thermal...
Polymer-Passivated Inorganic Cesium Lead Mixed-Halide Perovskites for Stable and Efficient Solar Cells with High Open-Circuit Voltage over 1.3 V.
Qingsen Zeng, Xiaoyu Zhang, Xiaolei Feng, Siyu Lu, Zhaolai Chen, Xue Yong, Simon AT Redfern, Haotong Wei, Haiyu Wang, Huaizhong Shen, Wei Zhang, Weitao Zheng, Hao Zhang, John S Tse, Bai Yang
Feb 13, 2018
Cesium-based trihalide perovskites have been demonstrated as promising light absorbers for photovoltaic applications due to their superb composition stability. However, the large energy losses (Eloss ) observed in inorganic...
Cell reprogramming shapes the mitochondrial DNA landscape.
Individual induced pluripotent stem cells (iPSCs) show considerable phenotypic heterogeneity, but the reasons for this are not fully understood. Comprehensively analysing the mitochondrial genome (mtDNA) in 146 iPSC and...
Cell reprogramming shapes the mitochondrial DNA landscape
Abstract: Individual induced pluripotent stem cells (iPSCs) show considerable phenotypic heterogeneity, but the reasons for this are not fully understood. Comprehensively analysing the mitochondrial genome (mtDNA) in 146 iPSC...
Biparental inheritance of mitochondrial DNA revisited.
Evidence for a biparental mode of mitochondrial DNA (mtDNA) inheritance has been sparse and remains controversial. Recent studies using a range of complementary techniques do not support paternal transmission of mtDNA, and...
Water Resources Assessment and Management for Nuclear Power Plants in China
To deal with global warming and energy shortage, nuclear power plants are constructed or planning to be constructed in China presently. The operation of a nuclear power plant consumes a great amount of water and discharges a lot...
Optimisation for interconnected energy hub system with combined ground source heat pump and borehole thermal storage
Ground source heat pumps (GSHP) give zero-carbon emission heating at a residential level. However, as the heat is discharged, the temperature of the ground drops, leading to a poorer efficiency. Borehole inter-seasonal thermal...
Cell reprogramming shapes the mitochondrial DNA landscape.
Individual induced pluripotent stem cells (iPSCs) show considerable phenotypic heterogeneity, but the reasons for this are not fully understood. Comprehensively analysing the mitochondrial genome (mtDNA) in 146 iPSC and...
FIBROBLASTS Humans DNA Mitochondrial Gene Expression Mutation Adult Aged Middle Aged Female Male Genome Mitochondrial Young Adult Induced Pluripotent Stem Cells Cellular Reprogramming Cellular Senescence heteroplasmy
Published by: Nature Communications
Smart Classroom College English Listening Teaching System Based on Virtual Environment Technology
This article mainly studies the design and realization of English listening teaching system based on virtual environment technology. This paper designs and builds a virtual experimental operating platform to assist students in...
Published by: IGI Global Scientific Publishing
Optimal Borehole Energy Storage Charging Strategy in a Low Carbon Space Heat System
Domestic heating is the major demand of energy systems, which can bring significant uncertainties to system operation and shrink the security margin. From this aspect, the borehole system, as an interseasonal heating storage...
Energy Harvesting from Ultra-low-Frequency Vibrations Through a Quasi-zero Stiffness Electromagnetic Energy Harvester
Purpose: To scavenge vibrational energy from ultra-low frequency vibrations with low excitation levels, this paper presents a novel quasi-zero stiffness electromagnetic energy harvester (QZS-EMEH) by exploiting a rolling...
Energy Harvesting from Ultra-low-Frequency Vibrations Through a Quasi-zero Stiffness Electromagnetic Energy Harvester
Purpose: To scavenge vibrational energy from ultra-low frequency vibrations with low excitation levels, this paper presents a novel quasi-zero stiffness electromagnetic energy harvester (QZS-EMEH) by exploiting a rolling...
Water Resources Assessment and Management for Nuclear Power Plants in China
To deal with global warming and energy shortage, nuclear power plants are constructed or planning to be constructed in China presently. The operation of a nuclear power plant consumes a great amount of water and discharges a lot...
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