Surface aging at olivine LiFePO4: a direct visual observation of iron dissolution and the protection role of nano-carbon coating

2013 ◽  
Vol 1 (5) ◽  
pp. 1579-1586 ◽  
Author(s):  
Jiajun Wang ◽  
Jinli Yang ◽  
Yongji Tang ◽  
Ruying Li ◽  
Guoxian Liang ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Visual Observation ◽  
Iron Dissolution ◽  
Direct Visual Observation ◽  
Nano Carbon

scholarly journals Rearing system and behavioural adaptation of laying hens to furnished cages

2008 ◽  
Vol 38 (7) ◽  
pp. 1997-2003 ◽  
Author(s):  
Victor Fernando Büttow Roll ◽  
Gustavo Adolfo Maria Levrino ◽  
Ricardo Cepero Briz
Keyword(s):  
Laying Hens ◽  
Video Recording ◽  
Visual Observation ◽  
Nest Box ◽  
Behavioural Adaptation ◽  
Direct Visual Observation ◽  
Cage Rearing ◽  
Sand Bath

The influences of floor and cage-rearing on behavioural adaptation to furnished cages were investigated in laying hens. Two groups of 180 Isa Brown commercial layer pullets were reared in cages (CR) or floor pens (FR) and transferred to furnished cages, where their behavioural adaptation was observed throughout the laying period (18-78 wks of age). At 17 weeks of age, hens were placed in one of the 36 furnished cages with 10 birds in each cage, each containing a nest box, perches, a dust bath, and abrasive strips. At 50 and 54 weeks of age, direct visual observation and video recording were used to assess hen’s behaviour. From 21 weeks of age, the dust-bath activities of leg-banded hens in eight cages per treatment were recorded. The amount of time spent walking was higher (3.5% vs. 1.8%) and perching was lower (7.5% vs. 13.4%) in CR hens than in FR hens (P<0.05). The use of dust baths and dust bathing behaviour increased throughout the laying period. The proportion of hens present at the sand bath area increased from 9.2% at 21 weeks to 21.4% at 72 weeks and the proportion of hens dust bathing increased from 4.7% to 21.0% (P<0.05). At 72 weeks of age, all dust-bath parameters were higher (P<0.05) in FR hens than in CR hens.

scholarly journals Amateurs and the Search for Supernovae

1988 ◽  
Vol 98 ◽  
pp. 190-191
Author(s):  
Stephen H. Lucas
Keyword(s):  
Visual Observation ◽  
Formidable Challenge ◽  
Search Tool ◽  
John Bennett

The role of amateur astronomers in the search of extragalactic supernovae is emerging. Visual discoveries by John Bennett in 1968 and Gus Johnson in 1979 were isolated and surprising encounters, but are indicative of the possibilities. Between 1980 and the present, these possibilities have been well-tested by the Rev. Robert O. Evans, who has discovered 15 SN’s and shares credit for a 16th. Rev. Evans’ record was achieved through an organized approach to observation and assisted by the development of a unique observing regimen. Detection of SN is a formidable challenge, but the obvious conclusion is that amateurs may expect to attain more than marginal success. We approach this subject from the standpoint of visual observation, but are obliged to acknowledge the contemporaneous and successful application of photography as a search tool.

On the Role of Iron Dissolution in Crack Propagation During Hydrogen Charging of an Fe-Pt Alloy

1973 ◽  
Vol 120 (5) ◽  
pp. 607 ◽  
Author(s):  
H. W. Pickering ◽  
P. J. Byrne
Keyword(s):  
Crack Propagation ◽  
Iron Dissolution ◽  
Hydrogen Charging ◽  
Pt Alloy

scholarly journals Methods of foals holding in Kyrgyz Republic

2019 ◽  
Vol 190 (11) ◽  
pp. 52-58
Author(s):  
Аскарбек Тулобаев ◽  
A. Tulobaev ◽  
Зинакуль Ниязбекова ◽  
Z. Niyazbekova
Keyword(s):  
Visual Observation ◽  
Kyrgyz Republic ◽  
Direct Visual Observation ◽  
Horse Farms ◽  
Free Position ◽  
Mother's Milk ◽  
Mother’S Milk ◽  
First Time ◽  
To Receive ◽  
Horse Owners

Abstract. The aim of research is a comparative study of the methods of holding suckling foals in a summer pastures conditions. In the research used methods of direct visual observation, video-photo documentation and a personal survey of horse farmers. Research was conducted in horse farms which producing mare's milk and koumiss. Horse farms practice tethering and penning of suckling foals of Kyrgyz indigenous horses. Results. It has been established that there is a need to choose places for leash and tightening foals for the hold them in the tethered. The tying of 12 foals takes 2.6 times more time than is required for the corralling of 15 foals. Foals that are on a leash in a forced position have the opportunity to receive mother's milk, while foals that are in a free position in the pen do not receive mother's milk. In tethered holding of suckling foals, milking one mare on average takes 2.44 times more time and on average expresses 446 ml less milk than in the corralling. Scientific novelty. For the first time, the advantages or disadvantages of different methods of holding suckling foals in the Kyrgyz Republic were investigated. Clarification of the advantages or disadvantages of the methods for holding suckling foals will enable the horse owners to choose a more suitable and better way to keep the foals.

scholarly journals Electrocatalytic CO2 reduction: role of the cross-talk at nano-carbon interfaces

2021 ◽  
Author(s):  
Michele Melchionna ◽  
Paolo Fornasiero ◽  
Maurizio Prato ◽  
Marcella Bonchio
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Structural Stability ◽  
Cross Talk ◽  
Carbon Nanostructures ◽  
Co2 Reduction ◽  
Interfacial Interactions ◽  
Unique Role ◽  
Nano Carbon

CO2RR is enhanced by the unique role of carbon nanostructures cooperating with metal and metal-oxide active phases to leverage charge transfer, reagent diffusion and structural stability, regulating a successful asset of interfacial interactions.

scholarly journals Performance and Feeding Behavior of Holstein and Holstein × Gyr Crossbred Heifers Grazing Temperate Forages

2021 ◽  
Author(s):  
Marcelo B. Abreu ◽  
Camila S. Cunha ◽  
João H.C. Costa ◽  
Emily K. Miller-Cushon ◽  
Polyana P. Rotta ◽  
...  
Keyword(s):  
Body Weight ◽  
Feeding Behavior ◽  
Visual Observation ◽  
Corn Silage ◽  
Body Measurements ◽  
Corn Meal ◽  
Bite Rate ◽  
Direct Visual Observation ◽  
The Difference ◽  
And Performance

Abstract This study aimed to investigate the difference between Holstein and Holstein x Gyr breeds on feeding behavior and performance of heifers grazing temperate pasture. The experiment was carried out in 89 days, split into 14 days of adaptation and 3 periods of 25 days. Two treatments were used: Holstein (HOL; n = 7) and Holstein × Gyr (HG; n = 7). Heifers grazed a consortium of ryegrass and Bristle Oats and were supplemented individually daily with corn meal at 0.33% of body weight plus 5 kg/d of corn silage. For 3 consecutive days, feeding behavior was observed for individual animals from direct visual observation recording at 10 min intervals. The digestibility trial was performed on d16 to d24 of each period. Body measurements and weight were taken at d0 and at d23, 24, and 25 of each period. Grazing duration, grazing frequency, and bite rate were greater for HOL than HG. Rumination characteristics, intake, digestibility, body measurements were not affected by breed. Breeds had differences in grazing characteristics, but it did not influence performance or intake parameters. Therefore, HOL and HG heifers managed under temperate pasture in tropical countries have similar performance.

Direct Visual Observation of Wing Movements during the Honey Bee Waggle Dance

2017 ◽  
Vol 30 (2) ◽  
pp. 199-210 ◽  
Author(s):  
Sylwia Łopuch ◽  
Adam Tofilski
Keyword(s):  
Honey Bee ◽  
Visual Observation ◽  
Waggle Dance ◽  
Direct Visual Observation

Role of carbon coating in improving electrochemical performance of Li-rich Li(Li0.2Mn0.54Ni0.13Co0.13)O2 cathode

RSC Advances ◽  
2014 ◽  
Vol 4 (83) ◽  
pp. 44244-44252 ◽  
Author(s):  
Bohang Song ◽  
Cuifeng Zhou ◽  
Yu Chen ◽  
Zongwen Liu ◽  
Man On Lai ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Coating ◽  
Carbon Layer ◽  
Hydrothermal Approach

Li-rich Li(Li0.2Mn0.54Ni0.13Co0.13)O2 cathode coated with carbon layer has been prepared by a hydrothermal approach. The enhanced performance is attributed to the carbon layer and surface spinels on particles.

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