Last edited by Malak
Thursday, July 23, 2020 | History

2 edition of Optical transparency of inexpensive salt solutions for construction of density-gradient ponds found in the catalog.

Optical transparency of inexpensive salt solutions for construction of density-gradient ponds

John D Webb

Optical transparency of inexpensive salt solutions for construction of density-gradient ponds

by John D Webb

  • 158 Want to read
  • 32 Currently reading

Published by Solar Energy Research Institute, Available from the National Technical Information Service, U.S. Dept. of Commerce in Golden, Colo, Springfield, VA .
Written in English

    Subjects:
  • Solar collectors,
  • Salt,
  • Solution (Chemistry),
  • Adsorption

  • Edition Notes

    StatementJohn D. Webb ; prepared for the U.S. Department of Energy
    SeriesSERI/RR ; 641-615
    ContributionsSolar Energy Research Institute, United States. Dept. of Energy
    The Physical Object
    Paginationxiv, 46 p. :
    Number of Pages46
    ID Numbers
    Open LibraryOL14883737M

      Transparent glass-ceramics doped with Co 2+ and Ni 2+ ions for thermal shock-resistant color filters, for broadband near-infrared (IR) optical amplifiers, and for passive Q-switching of eye-safe Er lasers are presented. Glass-ceramics with rare-earth titanates, titanates-zirconates, and niobates in dual roles of nucleators and active crystals. Frequently scientists want to know how their culture grows and what its metabolic activity during biotransformation is. For that reason, they are looking for instruments which can measure the optical density (OD) of the culture. Optical density is a logarithmic function and increasing the number of light absorption unit by one means that the intensity of light passing through the sample has.

    Advances in Optical Technologies , 1–12 (). Su H. & Huang X. G. Fresnel-reflection-based fiber sensor for on-line measurement of solute concentration in solutions. Sensors and Actuators B: Chemical , – (). Lide D. R. Handbook of Chemistry and Physics. (). Figure 2. (a) Graded lascas based on transparency degree, (b) Naked eye visual quality control of lascas in water tank. Inset shows optical microscopic image of solid and large fluid inclusions in lascas. Silica Glass Unique characteristics are found in silica glass, such as optical transparency .

    Ionic gradient media, comprised of concentrated heavy metal salts, are almost exclusively used for isopycnic separations of nucleic acids. Cesium chloride and cesium sulfate are the most widely used heavy metal salts with gradient densities of up to g/cm useful salts include sodium iodide, sodium bromide and the rubidium salts. The product had supplied to inject, blow, extrusion molding and other processing industries, due to PC with high physical strength and high transparency, etc. Thus the end product can be widely utilized in home appliances, vehicle lamps and components, food .


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Optical transparency of inexpensive salt solutions for construction of density-gradient ponds by John D Webb Download PDF EPUB FB2

Get this from a library. Optical transparency of inexpensive salt solutions for construction of density-gradient ponds. [John D Webb; Solar Energy Research Institute.; United States. Department of. Prakash, S. Kumar, in Microfabrication and Precision Engineering, Glass and polymer-based materials.

One of the primary requirements of many microfluidic devices is optical s are not only optically transparent but mechanically and thermally stable materials. They are also inert to many organic solutions and reagents, making them a first choice for.

Most liquids and aqueous solutions are highly transparent. For example, water, cooking oil, rubbing alcohol, air, and natural gas are all clear.

Absence of structural defects (voids, cracks, etc.) and molecular structure of most liquids are chiefly responsible for their excellent optical transmission.

A steep density gradient in a body of water can have the effect of trapping energy and preventing convection, such a gradient is employed in solar ponds. In the case of salt water, sharp gradients can lead to stratification of different concentrations of salinity.

Wilkins [32] reported the design and construction of two solar gel ponds of ( and ) m 2 (5 m deep with a gel thickness of m) in New Mexico to provide process heat for a food company. It was observed that solar gel ponds are superior to salt gradient solar ponds from the point of view of efficiency, ease of operation, and economics [33].

Needless to say, all solids are both transparent and opa­ que depending on the spectral region of consideration. The absorption processes that limit the transparency of a solid are either due to lattice vibrations, as in ionic or partially ionic solids, or due to electronic.

One way both optical density and absorbance are used differently is when studying the concentration of bacteria in a given suspension. Through the use of a spectrometer it is possible to examine the optical density to determine how much bacteria is present within the suspension.

But it is only through the measure of absorbance that you can determine how large each of the bacterial. Optical laser refractometry for determining the salinity has been investigated by several research groups. Typically, these refractometers utilize the Pulfrich configuration [1] [2] or variations thereof [3].

In this confi-guration, the fluid under study is placed inside a container containing at least one optically transparent, refract-ing window. Experimental investigation on a m2 solar gel pond Non Convective solar ponds are ordinarily composed of salt gradient layers.

Salt gradient solar ponds are found to have a number of difficulties. They cause environment pollution in the event of a salt leakage, and the salt gradient layers needs frequent maintenance. at the Pyramid Hill salt works in Northern Victoria.

Its purpose is to capture and store solar energy using pond water which can go up to 80 0 C [56]. Optical force is an important tool to manipulate small particles. It has been fruitfully applied in a broad variety of areas, not only spanning the traditional scientific fields, but also in more.

The optical materials selected for an optical system depend upon the application, the required system performance and the environment in which the system is to perform; thus the materials’ optical, mechanical, thermal and thermo-optic properties must be taken into account.

There are three major bands that are worked with when optical systems are used within the Earth’s atmosphere. III. Optical density in practice 1. Sample thickness Although cuvettes with smaller thickness have many advantages for measurements, the optical density is most often specified in publications with sample thicknesses of 10 mm.

EloCheck is an automatic photometer, which quantifies the optical density with mm cuvettes (and mm respectively). Optically induced transparency may offer a unique platform for a compact, integrated solution to all-optical and quantum information. Scientists have used light to make a micro-cavity transparent.

The increase of the optical transparency of quartz and fullerite thin films under the effect of high power non-resonance TR laser irradiation was found.

Tt is shown that laser induced optical transparency at power density of radiation close to destruction cut-off of the materials takes place. Optical and chemical properties of molten salt mixtures for use in high temperature power systems.

Diss. Massachusetts Institute of Technology, Google Scholar; 3. Drotning, William D. “ Optical properties of solar-absorbing oxide particles suspended in a molten salt heat transfer fluid.” Solar Energy (): – Light passes easily through transparent materials, which means you can see through them clearly.

Objects made from transparent materials, such as glass and clear plastic, are common. These materials play an important part in day-to-day life. Windowpanes, eyeglasses, light bulbs, and mirrors are made from transparent materials. Optical grade polycarbonate is optically clear, providing total luminous transmittance, and very low haze factor.

The high impact strength makes it resistant to repeated blows, shattering, and spalling, thus well matched for demanding applications requiring low distortion with optimal visual quality.

Optically Induced Transparency in a Micro-cavity Yuanlin Zheng1, Jianfan Yang2, Zhenhua Shen1, Jianjun Cao1, Xianfeng Chen1*, Xiaogan Liang3, and Wenjie Wan1,2* 1MOE Key Laboratory for Laser Plasmas and Collaborative Innovation Center of IFSA, Department of Physics and Astronomy, Shanghai Jiao Tong University, ShanghaiChina.

Transparent glass ceramic materials, with microstructures comprised of dispersed nanocrystallites in a residual glass matrix, offer the prospect of nonlinear optical properties.

However, good transparency requires low optical scattering and low atomic absorption. The attenuation of light due to scattering (turbidity) will depend upon the difference in refractive index of the two phases and.

Modification of density gradient 14 fresh water at the surface to strong solution (e.g. 15% of salt) related technology has been developed for the construction of tanks, ponds, and.Construction of economical solar ponds requires the availability of inexpensive, flat land; accessibility to water; and an inexpensive source of salt or brine.

A typical arrangement for this process is shown in Figure Figure Electrical power production concept using salt-gradient ponds.Transparency in thermoplastics is a property that differentiates them from many other manufacturing materials. This includes metals, ceramics and wood, and, in some cases surpasses glass.

But not all thermoplastics offer good transparency.