Color variability for a wine sample poured into a standard glass wine sampler

2003 ◽  
Vol 28 (6) ◽  
pp. 473-479 ◽  
Author(s):  
R. Huertas ◽  
A. Yebra ◽  
M.M. Pérez ◽  
M. Melgosa ◽  
A.I. Negueruela
Keyword(s):  
Wine Sample ◽  
Standard Glass

Viscosity Measurement Technique Using Standard Glass Burette for Newtonian Liquids

2005 ◽  
Vol 33 (1) ◽  
pp. 101-125 ◽  
Author(s):  
C. Igathinathane ◽  
V. K. Malleswar ◽  
U. Appa Rao ◽  
L. O. Pordesimo ◽  
A. R. Womac
Keyword(s):  
Measurement Technique ◽  
Viscosity Measurement ◽  
Standard Glass ◽  
Newtonian Liquids

Graphene aerogel decorated with MoS2 sheets: an efficient electrochemical sensing platform for caffeic acid in red wine sample

2021 ◽  
Author(s):  
GAO Feng ◽  
MA Xue ◽  
ZENG Qin ◽  
GAO Yansha ◽  
QIAN Yong ◽  
...  
Keyword(s):  
Caffeic Acid ◽  
Red Wine ◽  
Electrochemical Sensing ◽  
Graphene Aerogel ◽  
Wine Sample ◽  
Sensing Platform

Effect of nicotine and acetylcholine on crustacean muscle membrane potential

1986 ◽  
Vol 61 (2) ◽  
pp. 807-809
Author(s):  
R. F. Taylor ◽  
D. T. Frazier
Keyword(s):  
Membrane Potential ◽  
Muscle Tension ◽  
Muscle Cells ◽  
Abdominal Muscle ◽  
Muscle Membrane ◽  
Resting Membrane Potential ◽  
Crustacean Muscle ◽  
Standard Glass ◽  
Before And After ◽  
Receptor Organ

We have investigated the effect of nicotine and acetylcholine on the resting membrane potential of the crayfish extensor muscle in order to determine whether crustacean muscle can be activated by cholinergic compounds. Intracellular recordings from individual deep extensor abdominal muscle cells were made using standard glass microelectrode techniques. The resting membrane potential was measured before and after treatment with glutamate, nicotine, and acetylcholine. Glutamate, which is a known activator of crayfish muscle, was used to determine whether the muscle cell preparation was viable and capable of responding to any of the test substances. Our results confirm that application of glutamate is associated with a depolarization of the muscle membrane. However, muscle cells showed no depolarization after treatment with nicotine (50 microM) or acetylcholine (66 microM). These results argue against the notion that increases in muscle tension may be responsible for the increased receptor organ discharge observed in the presence of nicotine. Rather, it supports the hypothesis that nicotine is acting directly on the mechanoreceptor membrane to change its sensitivity.

INFLUENCE OF COVER MATERIAL ON HEAT LOSSES FROM A GLASS HOUSE : COMPARISON BETWEEN STANDARD GLASS AND LOW EMISSIVITY GLASS

1981 ◽  
pp. 379-386
Author(s):  
M. Baille ◽  
J. Damagnez ◽  
J.C. Laury
Keyword(s):  
Heat Losses ◽  
Standard Glass ◽  
Cover Material

Contribution of the Motor Cortex to the Structure and the Timing of Hindlimb Locomotion in the Cat: A Microstimulation Study

2005 ◽  
Vol 94 (1) ◽  
pp. 657-672 ◽  
Author(s):  
Frédéric Bretzner ◽  
Trevor Drew
Keyword(s):  
Motor Cortex ◽  
Muscle Activity ◽  
Pyramidal Tract ◽  
Cycle Duration ◽  
Step Cycle ◽  
Standard Glass ◽  
Level Of Activity ◽  
Flexor Muscles ◽  
Multijoint Movements ◽  
Stimulation Of

We used microstimulation to examine the contribution of the motor cortex to the structure and timing of the hindlimb step cycle during locomotion in the intact cat. Stimulation was applied to the hindlimb representation of the motor cortex in 34 sites in three cats using either standard glass-insulated microelectrodes (16 sites in 1 cat) or chronically implanted microwire electrodes (18 sites in 2 cats). Stimulation at just suprathreshold intensities with the cat at rest produced multijoint movements at a majority of sites (21/34, 62%) but evoked responses restricted to a single joint, normally the ankle, at the other 13/34 (38%) sites. Stimulation during locomotion generally evoked larger responses than the same stimulation at rest and frequently activated additional muscles. Stimulation at all 34 sites evoked phase-dependent responses in which stimulation in swing produced transient increases in activity in flexor muscles while stimulation during stance produced transient decreases in activity in extensors. Stimulation with long (200 ms) trains of stimuli in swing produced an increased level of activity and duration of flexor muscles without producing changes in cycle duration. In contrast, stimulation during stance decreased the duration of the extensor muscle activity and initiated a new and premature period of swing, resetting the step cycle. Stimulation of the pyramidal tract in two of these three cats as well as in two additional ones produced similar effects. The results show that the motor cortex is capable of influencing hindlimb activity during locomotion in a similar manner to that seen for the forelimb.

Characteristics of Preliminary Waste Forms for Icpp Low Activity Waste (Law) Fractions after Radionuclide Separations

1995 ◽  
Vol 412 ◽  
Author(s):  
Krishna Vinjamuri
Keyword(s):  
Structural Parameters ◽  
Chemical Durability ◽  
Liquid Sodium ◽  
Processing Plant ◽  
Chemical Processing ◽  
Waste Streams ◽  
Standard Glass ◽  
Radioactive Sodium ◽  
High Level ◽  
Low Activity

AbstractCurrently, at the Idaho Chemical Processing Plant (ICPP) there are about 6800 m3 of liquid sodium-bearing and liquid high-level wastes (HLW), and 3800 m3 of solid calcined HLW. One of the waste processing options under consideration includes separation of the HLW into high activity and low activity (LAW) wastes, followed by immobilization. Preliminary glasses were synthesized for the sodium-bearing, alumina-bearing, and the zirconia-bearing LAW fractions after radionuclide separations. The glasses were formed by crucible melting of a mixture of reagent chemicals representative of the LAW waste streams and frit additives at 1200 °C for 5 hours, followed by overnight annealing at 550 °C and furnace cooling of the melt. These glasses were characterized for density, elastic property, viscosity, chemical durability, structural parameters, and glass phase separation. The results are compared with that of the Hanford's standard glass ARM-i, Savannah River's benchmark glass EA, and the ICPP's grout waste form prepared using the simulated non-radioactive sodium-bearing waste fraction.

scholarly journals DISCONTINUOUS ELECTROPHORESIS OF PEPSIN AND PEPSINOGEN IN THIN SHEETS OF POLYACRYLAMIDE GEL

1970 ◽  
Vol 18 (12) ◽  
pp. 853-861 ◽  
Author(s):  
LEW CUNNINGHAM ◽  
ELLEN M. RASCH ◽  
ANN L. LEWIS ◽  
RICHARD HEITSCH
Keyword(s):  
Crystal Violet ◽  
Polyacrylamide Gel ◽  
Thin Sheets ◽  
Electrophoretic Separation ◽  
Standard Glass ◽  
Glass Support

Electrophoretic separation of discrete protein bands from solutions of crystalline pepsin or pepsinogen was accomplished in a system incorporating pH discontinuity and using standard, glass microslides to support thin (0.25-mm) sheets of 15% polyacrylamide gel. Adherence of gel films to a glass support during fixation and staining with crystal violet not only prevented distortion of gels as a result of swelling, but also provided preparations that could be readily scanned with a microspectrophotometer. A number of discrete peptide bands were identified from different samples of purified pepsin. Among the several heterogeneous components found in commercially available samples of crystalline pepsinogen, there was a characteristic impurity, the mobility of which was directly comparable to that of pepsin run under the same conditions of electrophoresis. Specific details of methodology are presented.

scholarly journals Assessment of Photovoltaic Surface Texturing on Transmittance Effects and Glint/Glare Impacts

2015 ◽  
Author(s):  
Julius Yellowhair ◽  
Clifford K. Ho
Keyword(s):  
Surface Roughness ◽  
Surface Texturing ◽  
Air Traffic ◽  
Photovoltaic Module ◽  
Roughness Parameters ◽  
Photovoltaic Modules ◽  
Standard Glass ◽  
Air Traffic Controllers ◽  
Pv Modules

Standard glass and polymer covers on photovoltaic modules can partially reflect the sunlight causing glint and glare. Glint and glare from large photovoltaic installations can be significant and have the potential to create hazards for motorists, air-traffic controllers and pilots flying near installations. In this work, the reflectance, surface roughness and reflected solar beam spread were measured from various photovoltaic modules acquired from seven different manufacturers. The surface texturing of the PV modules varied from smooth to roughly textured. Correlations between the measured surface texturing (roughness parameters) and beam spread (subtended angle) were determined. These correlations were then used to assess surface texturing effects on transmittance and ocular impacts of glare from photovoltaic module covers. The results can be used to drive the designs for photovoltaic surface texturing to improve transmittance and minimize glint/glare.

scholarly journals Structural Glass Systems under Fire: Overview of Design Issues, Experimental Research, and Developments

2017 ◽  
Vol 2017 ◽  
pp. 1-18 ◽  
Author(s):  
Chiara Bedon
Keyword(s):  
Architectural Design ◽  
Constructional Material ◽  
Careful Consideration ◽  
Structural Glass ◽  
Design Concepts ◽  
High Rise ◽  
Standard Glass ◽  
Load Carrying ◽  
Actual Design ◽  
Thermal Phenomena

Architectural design concepts incorporating glass beams, panels, or generally load-carrying elements and stiffeners for buildings, claddings, windows, and partitions are largely considered in modern high-rise constructions. A multitude of aspects, including motivations related to transparency, aesthetics, illumination, and energy conservation, progressively increased the use and interest for such a still rather innovative constructional material. However, compared to other traditional materials for buildings, standard glass is typically characterized by brittle behaviour and limited tensile resistance. The intrinsic properties of glass, moreover, together with typically limited thickness-to-size ratios for glazing elements, or the mutual interaction of glass components with adjacent constructional elements as a part of full assemblies they belong (i.e., fixing systems, sealants, etc.), as well as the combination of mechanical and thermal phenomena, make glass structures highly vulnerable. Special safety design rules are hence required, especially under extreme loading conditions. In this review paper, a state of the art on structural glass systems exposed to fire is presented. Careful consideration is paid for actual design methods and general regulations, as well as for existing research outcomes—both at the material and assembly levels—giving evidence of current challenges, issues, and developments.

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