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Ultrafast Synthesis of Calcium Vanadate for Superior Aqueous Calcium-Ion Battery

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Research 2019年第1期2019卷 85-95页

作者： liyuan liu Yih-Chyng Wu Patrick Rozier Pierre-louis Taberna Patrice simon CIRIMAT UMR CNRS 5085UniversitéPaul Sabatier Toulouse III118 route de Narbonne31062 ToulouseFrance RS2E Réseau Français sur le Stockage Electrochimique de l’EnergieFR CNRS 345980039 Amiens CEDEXFrance

Recently,multivalent aqueous calcium-ion batteries(CIBs)have attracted considerable attention as a possible alternative to li-ion ***,traditional Ca-ion storage materials show either limited rate capabilities and poor cycle life or insufficient specific ***,we tackle these limitations by exploring materials having a large interlayer distance to achieve decent specific capacities and one-dimensional architecture with adequate Ca-ion passages that enable rapid reversible(de)intercalation *** this work,we report the high-yield,rapid,and low-cost synthesis of 1D metal oxides MV_(3)O_(8)(M=li,K),CaV_(2)O_(6),and CaV_(6)O_(16)·7H_(2)O(CVO)via a molten salt ***,using 1D CVO as electrode materials,we show high capacity 205 mA h g^(-1),long cycle life(>97%capacity retention after 200 cycles at 3.0 C),and high-rate performance(117 mA h g^(-1) at 12 C)for Ca-ion(de)*** work represents a step forward for the development of the molten salt method to synthesize nanomaterials and to help pave the way for the future growth of Ca-ion batteries.

关键词： method. retention reversible

On the presence of the giant freshwater prawn,Macrobrachium rosenbergii,in French Guiana confirmed by citizen science and genetic analyses

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Water Biology and Security 2022年第2期1卷 112-118页

作者： Jerome Murienne Johan Chevalier simon Clavier laboratoire Evolution et Diversite Biologique(EDB UMR5174)Universite Toulouse 3 Paul Sabatier CNRSIRD118 route de Narbonne31062Toulouse CedexFrance Wano Guyane 220 rue du yopoto Claude Charles97319Awala YalimapoGuyane FrançaiseFrance Onikha pk9 route degrad Saramaca97310KourouGuyane FrançaiseFrance

We report for the first time the presence of self-sustaining populations of Macrobrachium rosenbergii in French *** analyses of the cytochrome c oxidase subunit I marker(COI)confirmed the identity of the species as well as historical records about the introduction of the species from commercial *** the limited presence of Macrobrachium rosenbergii in French Guiana,the species is recorded in several river basins,including two where the species has never been *** suggests that the species is able to disperse locally and highlights its potential invasive nature in the territory.

关键词： Amazonia Biological invasion Exotic species Neotropics

Biochemical Changes in Hybrid Catfish (Heterobranchus bidorsalis,♂ x Clarias gariepinus,♀) Treated with Nuracron

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应用与环境生物学报 2010年第3期16卷 353-357页

作者： GABRIEl Ugwemorubong Ujagwung OBOMANU Faithwin Gamalie EDORI Onisogen simon Department of Fisheries and Aquatic Environment Rivers State University of Science & Technology P.M.B 5080 Port Harcourt 5000001 Nigeria Department of Chemistry Rivers State University of Science & Technology P.M.B 5080 Port Harcourt 5000001 Nigeria Department of Chemistry Rivers State University of Education P.M.B. 5047 Rumuolameni Port Harcourt. 5000001 Nigeria

The effects of sublethal levels of nuracron,dimethylphosphate-3-hydroxy-N-methyl-cis-crotonamide(0,0.625× 10-6,1.25×10-6,2.5×10-6,5.0×10-6 and 10.0×10-6) on biochemical changes(aspartate transaminase,AST,E.C.2.***.1.1;alanine transaminase,AlT;2.***.2.2;alkaline phosphatase,AlP,EC 3.***.3.1) in the organs(kidney,liver,gill) and muscle tissues of hybrid catfi sh Heterobranchus bidorsalis,♂× Clarias gariepinus,♀ [mean weight,(277.76±53.11) g SD;mean total length,(35.69±2.80) cm,SD] were studied after a 23 d exposure in a renewal bioassay under laboratory ***,nuracron inhibited AST,AlT and AlP activities in all the exposure concentrations,with AlT activity being mostly *** most elicited enzyme was AlP in the kidney [(4 052.67±1610.45) IU/l],followed by AST in the muscle [(908.44±218.34) IU/l] and AlT in the liver [(160.29±73.68) IU/l].The AlP activity was 30.24 and 6.53 times greater than that of AlT and *** highest inhibition for AST(43.65%),AlT(47.88%) and AlP(57.98%) occurred at 10×10-6,0.625×10-6 and 2.5×10-6,*** activities of the enzymes in all the organs did not show any direct relationship with the exposure concentrations of the *** activity in the muscle generally suffered the most compared with the other *** activities of enzymes in the liver were generally inhibited,with elevation at 5.0×10-6 for all the *** lower concentrations of nuracron(0.625 ×10-6～2.5×10-6) caused elevation in the activities of AlP,but the reverse was the case with the higher concentrations;these of AST and AlT were *** relative activities of the various enzymes in the organs showed that the order for AST was liver>muscle>kidney>gill;that for AlT:liver>kidney,muscle>gill and that for AlP:kidney>gill>liver and ***,for AST and AlT the activities in the organs of the exposed fi sh peaked at 5.0×10-6 *** alteration in the activities of the enzymes indicated that the extract interfered with the Kreb's c

关键词： aspartate transaminase alanine transaminase alkaline phosphatase hybrid catfi sh nuracron

High Q and sub-wavelength THz electric field confinement in ultrastrongly coupled THz resonators

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Photonics Research 2023年第7期11卷 1203-1216页

作者： simon MESSElOT SOlEN COEYMANS JEROME TIGNON SUKHDEEP DHIllON JUlIETTE MANGENEY laboratoire de Physique de l’Ecole Normale Supérieure Ecole normale supérieurePSL UniversitySorbonne UniversitéUniversitéParis DiderotSorbonne Paris CitéCNRS24 rue Lhomond75005 ParisFrance

The control of light–matter coupling at the single electron level is currently a subject of growing interest for the development of novel quantum devices and for studies and applications of quantum *** the terahertz(THz)spectral range,this raises the particular and difficult challenge of building electromagnetic resonators that can conciliate low mode volume and high quality ***,we report on hybrid THz cavities based on ultrastrong coupling between a Tamm cavity and an lC circuit metamaterial and show that they can combine high quality factors of up to Q=37 with a deep-subwavelength mode volume of V=3.2×10^(-4)λ^(3).Our theoretical and experimental analysis of the coupled mode properties reveals that,in general,the ultrastrong coupling between a metamaterial and a Fabry–Perot cavity is an effective tool to almost completely suppress radiative losses and,thus,ultimately limit the total losses to the losses in the metallic *** Tamm cavity-lC metamaterial coupled resonators open a route toward the development of single photon THz emitters and detectors and to the exploration of ultrastrong THz light–matter coupling with a high degree of coherence in the few to single electron limit.

关键词： coupling cavity coupled

An Exploration of Deep-learning Based Phenotypic Analysis to Detect Spike Regions in Field Conditions for UK Bread Wheat

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Plant Phenomics 2019年第1期1卷 162-178页

作者： Tahani Alkhudaydi Daniel Reynolds simon Griffiths Ji Zhou Beatriz de la Iglesia University of East Anglia Norwich Research ParkNorwich NR47TJUK University of Tabuk Faculty of Computers&ITTabuk 71491Saudi Arabia Earlham Institute Norwich Research ParkNorwich NR47UZUK John Innes Centre Norwich Research ParkNorwich NR47UHUK Plant Phenomics Research Center China-UK Plant Phenomics Research CentreNanjing Agricultural UniversityNanjing 210095China

Wheat is one of the major crops in the world,with a global demand expected to reach 850 million tons by 2050 that is clearly outpacing current *** continual pressure to sustain wheat yield due to the world’s growing population under fluctuating climate conditions requires breeders to increase yield and yield stability across *** are working to integrate deep learning into field-based phenotypic analysis to assist breeders in this *** have utilised wheat images collected by distributed CropQuant phenotyping workstations deployed for multiyear field experiments of UK bread wheat *** on these image series,we have developed a deep-learning based analysis pipeline to segment spike regions from complicated *** a first step towards robust measurement of key yield traits in the field,we present a promising approach that employ Fully Convolutional Network(FCN)to performsemantic segmentation of images to segment wheat spike *** also demonstrate the benefits of transfer learning through the use of parameters obtained from other image *** found that the FCN architecture had achieved a Mean classification Accuracy(MA)>82%on validation data and>76%on test data and Mean Intersection over Union value(MIoU)>73%on validation data and and>64%on test *** this phenomics research,we trust our attempt is likely to form a sound foundation for extracting key yield-related traits such as spikes per unit area and spikelet number per spike,which can be used to assist yield-focused wheat breeding objectives in near future.

关键词： Wheat breeding crops

Experimental Investigation on Prototype latent Heat Thermal Battery Charging and Discharging Function Integrated with Solar Collector

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Energy Engineering 2022年第4期119卷 1587-1610页

作者： Farhood Sarrafzadeh Javadi Hendrik simon Cornelis Metselaar Poo Balan Ganesan Department of Mechanical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur50603Malaysia Center of Advanced Materials Faculty of EngineeringUniversity of MalayaKuala Lumpur50603Malaysia

This paper reports the performance investigation of a newly developed latent Heat Thermal Battery(lHTB)integrated with a solar collector as the main source of *** lHTB is a new solution in the field of thermal storage and developed based on the battery concept in terms of recharge ability,portability and usability as a standalone *** is fabricated based on the thermal battery storage concept and consists of a plate-fin and tube heat exchanger located inside the battery casing and paraffin wax which is used as a latent heat storage *** thermal energy is absorbed by solar collector and transferred to the lHTB using water as Heat Transfer Fluid(HTF).Charging experiments have been conducted with a HTF at three different temperatures of 68°C,88°C and 108°C and three different flow rates of 30,60 and 120 l/*** is followed by discharging experiments on fully charged lHTB at three different temperatures of 68°C,88°C and 108°C using HTF at three different flow rates of 30,60 and 120 l/*** is found that both higher HTF inlet temperature and flow rate have a positive impact on stored thermal ***,charging efficiency was decreased by increasing the HTF flow *** highest charging efficiency of 29%was achieved using HTF of 108°C at a flow rate of 30 l/*** of paraffin melted in this case,while part of the paraffin remained solid in other *** the other hand,the results from discharging experiments revealed that both recovered thermal energy and recovery efficiency increased by either increasing the lHTB temperature or HTF flow *** recovered thermal energy of 5,825 KJ at 35%recovery efficiency achieved at lHTB of 108°C using 120 l/h of HTF.

关键词： latent heat thermal battery phase change materials solar thermal latent heat storage thermal battery thermal storage

The Clock Protein CCA1 and the bZIP Transcription Factor HY5 Physically Interact to Regulate Gene Expression in Arabidopsis

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Molecular Plant 2008年第1期1卷 58-67页

作者： Christos Andronis simon Barak Stephen M. Knowles Shoji Sugano Elaine M. Tobin Department of Molecular Cell and Developmental Biology University of California Los Angeles CA 90095-1606 USA

The circadian clock regulates the expression of an array of Arabidopsis genes such as those encoding the lIGHT-HARVESTING CHlOROPHYll A/B （lhcb） proteins. We have previously studied the promoters of two of these Arabidopsis genes-lhcb1＊1 and lhcb1＊3m-and identified a sequence that binds the clock protein CIRCADIAN ClOCK ASSOCIATED 1 （CCA1）. This sequence, designated CCAl-binding site （CBS）, is necessary for phytochrome and circadian responsiveness of these genes. In close proximity to this sequence, there exists a G-box core element that has been shown to bind the bZIP transcription factor HY5 in other light-regulated plant promoters. In the present study, we examined the importance of the interaction of transcription factors binding the CBS and the G-box core element in the control of normal circadian rhythmic expression of lhcb genes. Our results show that HY5 is able to specifically bind the G-box element in the lhcb promoters and that CCA1 can alter the binding activity of HY5. We further show that CCA1 and HY5 can physically interact and that they can act synergistically on transcription in a yeast reporter gene assay. An absence of HY5 leads to a shorter period of lhcbl＊l circadian expression but does not affect the circadian expression of CATAlASE3 （CAT3）, whose promoter lacks a G-box element. Our results suggest that interaction of the HY5 and CCA1 proteins on lhcb promoters is necessary for normal circadian expression of the lhcb genes.

关键词： CCA1 bZIP Transcription Factor HY5 Physically Gene Expression in Arabidopsis

Bioinspired backstepping sliding mode control and adaptive sliding innovation filter of quadrotor unmanned aerial vehicles

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Biomimetic Intelligence & Robotics 2023年第3期3卷 49-58页

作者： Zhe Xu Tao Yan simon X.Yang SAndrew Gadsden School of Engineering University of GuelphGuelph N1G 2V7Canada Department of Mechanical Engineering McMaster UniversityHamilton L8S 4L8Canada

Quadrotor unmanned aerial vehicles have become the most commonly used flying robots with wide applications in recent *** paper presents a bioinspired control strategy by integrating the backstepping sliding mode control technique and a bioinspired neural dynamics *** effects of both disturbances and system and measurement noises on the quadrotor unmanned aerial vehicle control performance have been addressed in this *** proposed control strategy is robust against disturbances with guaranteed stability proven by the lyapunov stability *** addition,the proposed control strategy is capable of providing smooth control inputs under *** the modeling uncertainties,the adaptive sliding innovation filter is integrated with the proposed control to provide accurate state estimates to improve tracking ***,the simulation results demonstrate that the proposed control strategy provides satisfactory tracking performance for a quadrotor unmanned vehicle operating under disturbances and noises.

关键词： Trajectory tracking Backstepping sliding mode Sliding innovation filter Unmanned aerial vehicle

Dementia and osteoporosis in a geriatric population: Is there a common link?

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World Journal of Orthopedics 2017年第5期8卷 412-423页

作者： Candice l Downey Adam Young Emily F Burton simon M Graham Robert J Macfarlane Eva-Maria Tsapakis Eleftherios Tsiridis University of leeds School of Medicine Department of Anaesthetics Pinderfields Hospital Department of Trauma and Orthopaedics the Royal Liverpool University Hospital Academic Department of Orthopaedics and Trauma Aristotle University Medical School

AIM To determine the existence of a common pathological link between dementia and osteoporosis through reviewing the current evidence base. METHODS This paper reviews the current literature on osteoporosis and dementia in order to ascertain evidence of a common predisposing aetiology. A literature search of Ovid MEDlINE(1950 to June 2016) was conducted. The keywords "osteoporosis", "osteoporotic fracture", "dementia" and "Alzheimer's disease"(AD) were used to determine the theoretical links with the most significant evidence base behind them. The key links were found to be vitamins D and K, calcium, thyroid disease, statins, alcohol and sex steroids. These subjects were then searched in combination with the previous terms and the resulting papers manually examined. Theoretical, in vitro and in vivo research were all used to inform this review which focuses on the most well developed theoretical common causes for dementia(predominantly Alzheimer's type) and *** Dementia and osteoporosis are multifaceted disease processes with similar epidemiology and a marked increase in prevalence in elderly populations. The existence of a common link between the two has been suggested despite a lack of clear pathological overlap in our current understanding. Research to date has tended to be fragmented and relatively weak in nature with multiple confounding factors reflecting the difficulties of in vivo experimentation in the population of interest. Despite exploration of various possible mechanisms in search for a link between the two pathologies, this paper found that it is possible that these associations are coincidental due to the nature of the evidence available. One finding in this review is that prior investigation into common aetiologies has found raised amyloid beta peptide levels in osteoporotic bone tissue, with a hypothesis that amyloid beta disorders are systemic disorders resulting in differing tissue manifestations. However, our findings were that t

关键词： Osteoporosis Fracture Dementia Thyroid disease Alzheimer’s disease Elderly Vitamin D Vitamin K Calcium Statins Alcohol Sex steroids