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A Reservation System For An Airline Company

When a suitable match is found, the user (identified by email) should be able to reserve the seat. Seat reservations may also be cancelled. The seat data should be modelled in a file (seats.txt) that will contain the seat data and any reservations, though initially every seat should be unreserved. Upon application launch, the data should be loaded into appropriate data structures and upon application exit, the data should be saved back to the file.

Auto Production Planning

For this problem, you will use a clever constraint substitution for the fuel economy requirement. Rather than actually calculating the avg fuel economy and constraining it to be at least 27 mpg, you will: Subtract the required average (27) from the fuel economy of each vehicle class. For example, for compacts, you get 40 - 27 = 13, and for SUVs, you get 25 - 27 = -2. In effect, this "shifts" the requirement to "the average of the shifted mpg's should be at least 0." Now that the minimum allowed average is shifted to 0, we don't have to actually do the division part of the calculation. "Why not?" you ask. Because it is enough to know that the numerator part of the calculation is not negative to conclude that the average will also not be negative.

Database Design And Development

Using your logical model as a basis, create a physical ERD using crow’s foot notation for either a MySQL or Oracle database. Make sure to use appropriate naming conventions and to identify data types, keys and constraints. Note any assumptions made or further changes to the structure beyond those in the logical model.

Delaware River Main Channel

In 2008 June, a contract was signed between the US Army Corps of Engineers and Port Authority of Philadelphia Regional to commence a $379-million deal that aimed to increase the depth of the Delaware River's shipping channel and was estimated to take a period of 5 years to complete (Kauffman 1662). According to the proposal, the deeper end of the channel was 40 feet, and this depth was to be increased to 45 feet. The deeper channel would permit Delaware River ports to remain competitive and efficient in cargo transportation, offer secure passage, and create more job opportunities within the region.

The Economic Implication Of Technological Advancement In Transportation And Logistics

Technological innovation in transport and logistics has made supply process faster, safer, with better consumption, more comfortable, able to reach anywhere and with greater capacity to reach many people. All of this contributes unquestionably to the economic growth of companies and governments and even to individual well-being, which also translates into greater profits for companies and governments through taxes (Prentice & Russell, 2009). Efficient transport and logistics significantly increases consumption and consequently economic stability, and also generate more money directly or indirectly from taxes, something that, unequivocally improves the economy.

The Impact Of Macroeconomics In Corporate Financial Decisions

Financial management's great concern is allocating, procurement, and controlling financial resources to the concerned business. Besides, financing could be used in purchasing long-term assets that will produce income and create a gain in value or reduce the expenses of a company. However, the advantages of long-term assets can be affected by personal factors and macroeconomic factors such as; employment, inflation, political instability, and economic inflation that can hugely have impact on business's financial decisions.

Aspirin Synthesis Lab Report

Aspirin is widely used to decrease fever, relieve pain, and as an anti-inflammation purposes. Aspirin’s use started in the 18th century, after the discovery that extracts from willow tree's bark could reduce fever and pain. Researchers discovered that salicylic acid was the main agent found in the bark (Desborough et al., 2017). However, salicylic acid had some side effects, including irritation to the mouth lining, stomach, and esophagus. Salicylic acid also caused stomach lining hemorrhaging. Bayer Company, based in Germany, later modified Salicylic acid and named the drug aspirin in 1899.