A Canadian satellite operated by Telesat Canada. Criticisms and controversies[ edit ] Main article: Criticism of Dish Network Since the early s, Dish Network received criticism regarding controversial technology and carriage disputes with programming providers.
Evaporation of solids and supernatant fluids Related items Crucible An evaporating dish or watch glass is a piece of laboratory glassware used for the evaporation of solutions and supernatant liquids, [note 1] and sometimes to their melting point.
Evaporating dishes are used to evaporate excess solvents — most commonly water — to produce a concentrated solution or a solid precipitate of the dissolved substance. Most are made of porcelain or borosilicate glass.
Shallow glass evaporating dishes are commonly termed "watch glasses", since they resemble the front window of a pocket watch. The evaporator is used most often in quantitative analysis.
In the determination of silicon content in an organic sample, a small and accurately-measured quantity of a substance is added to the large amount of sulfuric acidthen heated in an evaporating dish.
The dish is heated with a Bunsen burneruntil only stable precipitate remains, which contains the silica content. The dish is then closed and heated at high temperature until completely clean, fused silica is produced. Comparison of the initial weight of the substance and that of the fused silica allows the content of silicon in the sample to be determined.
A generic evaporator dish The shape of the evaporating dish encourages evaporation in two ways: The shell is relatively flat. A relatively large liquid surface promotes evaporation. If heated in a flask or beaker, a part of the evaporated liquid condenses on the vessel walls and flows back into the solution.
This does not happen in a dish. When heating liquid in an evaporating dish, the low walls encourage splashes and so stirring or swirling of evaporating liquids is considered bad practice, owing to the risk of spillage. Evaporation, especially in production quantities rather than merely for analysis, is now mostly performed in a rotary evaporator.
This is preferred because it works much faster and may be used under vacuum, avoiding unwanted reactions with the atmosphere and allowing control of noxious fumes.
Evaporation under vacuum also reduces the severity of bumping and violent ebullition.View DISH Network Corporation DISH investment & stock information. Get the latest DISH Network Corporation DISH detailed stock quotes, stock data, Real-Time ECN, charts, stats and more.
Jul 01, · SWOT ANALYSIS ON Dish Network Corporation: Dish Network Corporation is the United States' fourth largest pay-tv provider, providing direct broadcast satellite service—including satellite television, audio programming, and interactive television services—to million commercial and residential customers in the United States.
DISH Network trades on the NASDAQ under the ticker symbol "DISH." How were DISH Network's earnings last quarter?
DISH Network Corp (NASDAQ:DISH) issued its . Zacks is the leading investment research firm focusing on stock research, analysis and recommendations. Gain free stock research access to stock . Dish Network The external analysis of Dish Network shows the TV service providers industry and environmental factors that affect those companies in the industry.
The two studies that were used to examine the external factors were PEST Analysis and Michael Porter’s Five Competitive Forces. DISH Network Corp.
Cl A. DISH Network Corp. is a holding company, which engages in the provision of pay-tv services. It operates through Pay-TV and Broadband, and Wireless segments.