A Novel Method to Improve Cycling Performance of LiMn2O4 Cathodes

2019 ◽  
Vol 1 (26) ◽  
pp. 59-67 ◽  
Author(s):  
Youlong Xu ◽  
Xifei Li ◽  
Lei Zhang ◽  
Jie Wang ◽  
Xianfeng Du
Keyword(s):  
Cycling Performance ◽  
Novel Method ◽  
Limn2o4 Cathodes

Electrochemical Performance of Lithium Difluoro(Oxalate)Borate Synthesized by a Novel Method

2011 ◽  
Vol 197-198 ◽  
pp. 1121-1124 ◽  
Author(s):  
Shi You Li ◽  
Xiao Li Xu ◽  
Xin Ming Shi ◽  
Xiao Ling Cui
Keyword(s):  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Inert Atmosphere ◽  
Capacity Retention ◽  
Ethyl Methyl ◽  
Ethyl Methyl Carbonate ◽  
Novel Method ◽  
Methyl Carbonate ◽  
Continuous Technology

Lithium difluoro(oxalate)borate (LiODFB) as an alternative salt for lithium-ion batteries, its application was limited by salt synthesis. In this study, high purity LiODFB was synthesized by simple and continuous technology using purified self-made BF3, the inert atmosphere and vacuum protection was avoided. Moreover, 0.7 mol L-1LiODFB-PC (propylene carbonate)/EMC (ethyl methyl carbonate)/DMC (dimethyl carbonate) (1:1:1, by volume) were prepared to assembling Li/MCMB (mesocarbon microbead) cell. Solid Electrolyte Interphase (SEI) was formed to stabilized MCMB structure even in one third (by volume) of PC in the electrolyte with the help of LiODFB. LiFePO4/Li cell was assembled as well. The cell based on LiODFB had excellent cycling performance and capacity retention.

scholarly journals A novel method based on first principles to determine the accuracy and reliability of force measurements reported by bicycle power meters.

2019 ◽  
Vol 8 (1) ◽  
pp. 26-31
Author(s):  
Ryan Worn ◽  
Dan B Dwyer
Keyword(s):  
Tangential Force ◽  
Absolute Error ◽  
Cycling Performance ◽  
Radial Force ◽  
Repeated Measurements ◽  
Force Measurements ◽  
Crank Angle ◽  
Novel Method ◽  
Applied Forces ◽  
Left And Right

The accuracy and reliability of instrumented bicycle crank systems (i.e. power meters) is an important consideration for sport scientists who evaluate cycling performance and pedalling biomechanics. Many crank systems report power and or force/s on the left and right crank arms separately, or indexes of pedalling effectiveness, although crank systems that have genuinely independent force transducers on the left and right crank arms are rare. There is a need to be able to evaluate the accuracy and reliability of the measurements of power meters without the requirement for expensive and or complex instrumentation. The present study describes a relatively simple and novel method of assessing the accuracy and reliability of measures of crank angle, radial force and tangential force. The method is demonstrated in its application to an instrumented crank system (Axis Cranks ™). Reported crank forces were compared with actual applied forces to determine accuracy and some procedures used to assess the measurement of force were duplicated to determine reliability. The crank system measured crank angle with an average RMS error of 1.84 degrees across pedalling rates of 30-150 r/min. The absolute error of radial and tangential force measurements were 6% and 3.2% respectively (RMSE) and the relative error (accuracy of change in force) of radial and tangential force were 1.48% and 0.25% respectively (RMSE). Repeated measurements of force were found to be highly reliable (intra-class coefficient > 0.998). The method presented in this report could be used to evaluate the accuracy and reliability of other power meters and instrumented crank systems.

Novel method to enhance the cycling performance of spinel LiMn2O4

2007 ◽  
Vol 9 (8) ◽  
pp. 2023-2026 ◽  
Author(s):  
Xifei Li ◽  
Youlong Xu
Keyword(s):  
Cycling Performance ◽  
Spinel Limn2o4 ◽  
Novel Method

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

Development of novel method for measuring optical activity of solids and its applications

1997 ◽  
Vol 71-72 (1-3) ◽  
pp. 403-425 ◽  
Author(s):  
J Kobayashi
Keyword(s):  
Optical Activity ◽  
Novel Method

Author response for "A novel method to identify Post‐Aire stages of medullary thymic epithelial cell differentiation"

2020 ◽  
Author(s):  
Pedro Ferreirinha ◽  
Camila Ribeiro ◽  
Junko Morimoto ◽  
Jonathan J. M. Landry ◽  
Minoru Matsumoto ◽  
...  
Keyword(s):  
Cell Differentiation ◽  
Epithelial Cell ◽  
Author Response ◽  
Thymic Epithelial Cell ◽  
Epithelial Cell Differentiation ◽  
Medullary Thymic Epithelial Cell ◽  
Novel Method

Longitudinal Changes in Individual BrainAGE in Healthy Aging, Mild Cognitive Impairment, and Alzheimer’s Disease

GeroPsych ◽  
2012 ◽  
Vol 25 (4) ◽  
pp. 235-245 ◽  
Author(s):  
Katja Franke ◽  
Christian Gaser
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Healthy Aging ◽  
Brain Aging ◽  
Elderly Subjects ◽  
Additional Increase ◽  
Longitudinal Changes ◽  
Novel Method ◽  
The Brain

We recently proposed a novel method that aggregates the multidimensional aging pattern across the brain to a single value. This method proved to provide stable and reliable estimates of brain aging – even across different scanners. While investigating longitudinal changes in BrainAGE in about 400 elderly subjects, we discovered that patients with Alzheimer’s disease and subjects who had converted to AD within 3 years showed accelerated brain atrophy by +6 years at baseline. An additional increase in BrainAGE accumulated to a score of about +9 years during follow-up. Accelerated brain aging was related to prospective cognitive decline and disease severity. In conclusion, the BrainAGE framework indicates discrepancies in brain aging and could thus serve as an indicator for cognitive functioning in the future.

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