Notes, summaries, assignments, exams, and problems for Other courses

Protecting the Environment

1. Gold Extraction

   Gold is found mainly as the metal itself in the earth because it has a low reaction rate, which prevents easy oxidation.

Carbon Extraction of Zinc

Carbon can be used to extract zinc because carbon has a higher reaction rate than zinc.

Sodium Extraction

Sodium was not extracted until 1807 because sodium attaches itself very strongly to other elements, making it difficult to separate and obtain a pure substance.

Limestone

i) Name of Material: Limestone

Reason why this metal is used: It decomposes silicon dioxide in the heat of the furnace to calcium oxide.

ii) Word Chemical Equation for the Reaction of Iron Extracted from Iron Ore when a Gaseous Oxide of Carbon Reacts with Iron Oxide: FeO + CO = Fe + CO2

Aluminium Extraction

i) Why a Mixture... Continue reading "Extraction of Metals and Chemical Reactions" »

T.11 1. Is

the organization design of the MNE a function of its strategy or vice versa? Is both a function of its strategy and its design also drives its strategy. The objective of organization design is to provide, maintain, and develop the organizational structure that works best toward the achievement of firm’s strategic objectives into workable assignments of rights, duties, and responsibilities for the various units and individual positions that make up the organizational apparatus. The structure can represent a constraint on the firm’s mode of operations and in turn on its strategic thinking.

2. If you

were a top manager in a subsidiary in Mexico, would you expect similar to subsidiaries in London in authority, knowledge flow, or strategic... Continue reading "Global Organization Design and Integration Strategies" »

Understanding common 10-codes used in radio communication by police and emergency services.

10-0

Chase in Progress

10-1

Signal Weak

10-2

Signal Good

10-3

Stop Transmitting

10-4

Affirmative

10-5

Relay To

10-6

Busy

10-7

Out of Service

10-8

In Service

10-9

Repeat

10-10

Negative

10-11

___ On Duty

10-12

Standby

10-13

Existing Condition(s)

10-14

Message/Information

10-15

Message Delivered

10-16

Reply to Message

10-17

En Route

10-18

Urgent/Quickly

10-19

In Contact

10-20

Location

10-21

Phone

10-22

Cancel/Disregard

10-23

Arrived on Scene

10-24

Assignment Complete

10-25

Report to Meet

10-26

ETA

10-27

License/Permit Required

10-28

Ownership Information

10-29

Records Check

10-30

Danger/Caution

10-31

Pick Up

10-32

Units Needed Quickly

10-33

Emergency

10-34

Time

10-35

Radar

10-36

Abandoned Vehicle

10-37

Mobile Data Computer

10-38

Normal

International Logistics

International logistics is the process of planning, implementing, and controlling the movement of goods from supplier to customer from one country to another. It describes the activities necessary to get materials to a manufacturing facility, through the manufacturing process, and out through a distribution system to the end user. The goal is to manage a global supply chain at a low cost while providing superior customer service. Firms now typically use electronic data interchange (EDI) via the Internet to coordinate the flow of materials into manufacturing, through manufacturing, and out to customers. This eliminates delays among suppliers, shippers, and the purchasing firm, and reduces paperwork. EDI can also help a... Continue reading "International Logistics, Trade, and Marketing Strategies" »

The Intel 8051 is an 8-bit microcontroller, meaning most available operations are limited to 8 bits. There are three basic "sizes" of the 8051: Short, Standard, and Extended. The Short and Standard chips are often available in DIP (Dual In-line Package) form, but the Extended 8051 models often have a different form factor and are not "drop-in compatible."

Key Features of the Intel 8051

• 4 KB on-chip program memory.
• 128 bytes on-chip data memory (RAM).
• 32 bytes devoted to register banks.
• 16 bytes of bit-addressable memory.
• 80 bytes of general-purpose memory.
• Four register banks.
• 128 user-defined software flags.
• 8-bit data bus.
• 16-bit address bus.
• 16-bit timers (usually 2, but may have more or less).
• 3 internal and 2 external interrupts.
• Bit as well as byte-

Political Systems

A political system refers to the system of government in a nation. There are three main types of political systems:

• Collectivist-Socialist Systems: These systems prioritize collective ownership and control over economic and political resources.
• Individualist-Democratic Systems: These systems emphasize individual freedom and choice in economic and political pursuits.
• Totalitarian Systems: These systems concentrate absolute control over all aspects of society in the hands of a single person or party.

Economic Systems

An economic system refers to the way in which a society produces, distributes, and consumes goods and services. There are three main types of economic systems:

• Market Economies: These systems are characterized by private

Globalization: A Shift Towards a More Integrated World Economy

Globalization of Markets

• National markets merge into a single global market.
• Trade barriers are reduced or eliminated.
• Tastes and preferences converge.
• Firms promote the trend by offering the same products worldwide.

Globalization of Production

• Goods and services are sourced from locations around the globe.
• Firms take advantage of national differences in the cost and quality of factors of production (land, labor, capital).

Benefits of Globalization

• Lower prices for goods and services
• Greater economic growth
• Higher consumer income
• More jobs

Critics of Globalization

• Job losses
• Environmental degradation
• Cultural imperialism of global media and multinational enterprises (MNEs)

Factors Driving Globalization

• Declining

Q.9 What are border roads? Mention its Two importances.

Ans. Strategically important roads in The bordering areas of the country are called border roads. These roads are in The northern and northeastern border areas. Importance of Border roads: -

1) Border roads have improved Accessibility in areas of difficult terrain.2) They have helped in the economic Development of border areas.3) Used to supply military equipments to The borders of our country.

Q.10 State any four problems of Road transport in the country.Ans. Major problems are:i. Road transportation in India is Inadequate keeping in view the volume of traffic and passengers.Ii. About half of the roads are Un-mettal and this limits their usage during the rainy season.iii. The National Highways... Continue reading "Comprehensive Guide to Transportation in India: Roads, Railways, and Pipelines" »

Mineral Resources: Key Concepts and Applications

13. Factors for Commercially Viable Mineral Extraction

Three factors that make mineral extraction commercially viable are:

• The mineral content of the ore must be in sufficient quantities.
• The type of formation or structure determines the relative ease with which mineral ores are extracted.
• The cost of mineral extraction.

14. Measures for Mineral Conservation

Three important measures for the conservation of minerals include:

• Adopting improved technologies to use low-grade ores at lower costs.
• Recycling metals using scrap metals.
• Using substitutes such as aluminum instead of copper, etc.

15. Uneven Distribution of Mineral Resources in India

The statement “Mineral resources in India are unevenly distributed”... Continue reading "Mineral Resources: Extraction, Conservation, and Key Applications" »