river. There was a sudden and unexpected power surge‚ and when an emergency shutdown was attempted‚ an exponentially larger spike in power occurred‚ which led to a reactor vessel rupture and a series of steam explosions. These events exposed the Graphite Moderator of the reactor to air‚ causing it to ignite. The resulting fire sent a plume of highly radioactive fallout into the atmosphere and over a large area‚ including Pripyat. The plume drifted over large parts of the western Soviet Union
Premium Chernobyl disaster
absorption determination of arsenic in most waters and wastewaters. Three test methods are given as follows: Test Method A—Silver Diethyldithiocarbamate Colorimetric Test Method B—Atomic Absorption‚ Hydride Generation Test Method C—Atomic Absorption‚ Graphite Furnace Concentration Range 5 to 250 µg/L 1 to 20 µg/L 5 to 100 µg/L Sections 7 to 15 16 to 24 25 to 33 1.2 The analyst should direct attention to the precision and bias statements for each test method. It is the user’s responsibility to ensure
Premium Analytical chemistry Reagent Hydrochloric acid
Do the circumstances surrounding the sale of the Collinsville plant play any role in your willingness to buy the assets? If so‚ how‚ if not‚ why not? On the one hand‚ the circumstances of the sale make me less willing to buy. In particular‚ both Universal and the federal government think that American’s acquisition creates antitrust issues. If this is the case‚ American could use its market power to change the nature of the market and make Dixon’s new plant unprofitable by setting lower prices
Premium Investment Capital expenditure Net present value
Deadly Meltdown – Chernobyl By JOHN GREENWALD May 12‚ 1986 – TIME Magazine The first warning came in Sweden. At 9 a.m. on Monday‚ April 28‚ technicians at the Forsmark Nuclear Power Plant‚ 60 miles north of Stockholm‚ noticed disturbing signals blipping across their computer screens. Those signals revealed abnormally high levels of radiation‚ a sure sign of serious trouble. At first suspecting difficulties in their own reactors‚ the engineers searched frantically for a leak. When they found nothing
Premium Chernobyl disaster Nuclear power Ukraine
Case: AMERICAN CHEMICAL CORPORATION 1. Executive Summary Dixon‚ an American specialty chemical producer‚ wants to buy Collinsville plant from American Chemical Corporation‚ another typical chemical company in 1979. Dixon wants to diversify its product line buy acquiring the aforesaid plant‚ which produces sodium-chlorate to supply to paper producers in Southeastern part of the US. This plant initially cost 12 mln. USD and additional 2‚25 mln. USD needed to buy laminate technology to increase efficiency
Premium Weighted average cost of capital Costs Variable cost
NUCLEAR REACTORS A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Nuclear reactors are used at nuclear power plants for electricity generation and in propulsion of ships. Heat from nuclear fission is passed to a working fluid (water or gas)‚ which runs through turbines. These either drive a ship’s propellers or turn electrical generators. Nuclear generated steam in principle can be used for industrial process heat or for district heating. Some reactors are
Premium Nuclear fission Nuclear power Electricity generation
THERMOCHENISTRY Index 1.0 Introduction | | | | | | | | 1 | 2.0 Enthalpy Changes | | | | | | | 2‚3 | 2.1 The Standard Conditions For Calculating Enthalpy Changes | | | | 3.0 Hess’s Law | | | | | | | | 4‚5 | 3.1 The Applications of Hess’s Law | | | | | | 4.0 Standard Molar Enthalpy Change of Formation‚ ΔHof | | | | 6‚7 | 4.1 The Stability of A Compound | | | | | | | 4.2 Using ΔHof
Free Enthalpy Thermodynamics Energy
Ballpoint pen Ballpoint pen is a pen that used nowadays‚ using a smooth rolling point of the tip in the pen. Unlike fountain pen‚ you don’t need to fill in ink for writing. The first patent on a ballpoint pen was issued on 30 October 1888‚ to John Loud‚ a leather tanner‚ who was attempting to make a writing instrument that would be able to write on his leather products‚ which then-common fountain pens could not do. In the period between 1904 and 1946‚ particularly alternatives or improvements
Premium Pen
The following three pieces were all found in the book A World of Art by Henry M. Sayre. The three sculptures‚ Puppy‚ Cloud Gate‚ and Great Serpent Mound‚ where all selected because of their relevance to nature. Both Puppy and The Great Serpent Mound are almost literally made of natural material‚ particularly vegetation. On the other hand‚ Cloud Gate is made of stainless steal‚ but yet the steal reflects it’s surrounding. Particularly Could Gate reflects the sky above it‚ and thus incorporates nature
Premium Art Sculpture Aesthetics
Even apart from its rarity and value‚ diamond is a remarkable mineral (Murck‚ B. W.‚ Skinner‚ B. J.‚ & Mackenzie‚ D. (2008). Diamonds are pure elemental carbon‚ the same chemical found in graphite and charcoal. Carbon-12 is the most important atom living in beings‚ besides being the sole component of diamond‚ graphite and coal. Diamonds are fascinating. They are chemically resistant and it is the hardest natural known substance. Diamonds also have special optical properties such as high index refraction
Premium Plate tectonics Diamond Earth