Sunday, 15 March 2015

GAGAN MAKES GPS MORE ACCURATE
Phones that pick up signals from orbiting U.S. Global Positioning System (GPS) satellites are now common. The phone uses that information to work out the location and display it on a map. In a similar fashion, the GPS signals can be used to assist aircraft in determining position during landing and take off as well as in flying shorter routes to their destination. One important way to meet the demands of civil aviation has been through what is known as a Satellite-Based Augmentation System (SBAS). Satellites in geostationary orbit are used to supplement the GPS signals. The first SBAS was the U.S Wide Area Augmentation System (WAAS) that became operational in 2003. The European Geostationary Navigation Overlay Service (EGNOS) was officially declared available for aviation use March 2011. The Japanese have a system known by the acronym MSAS.

India is establishing its own system, the GPS Aided Geo Augmented Navigation (GAGAN), a joint effort by the ISRO and the Airports Authority of India. The ground segment for GAGAN, which has been put up by the U.S company Raytheon, has 15 reference stations scattered across the country. Two mission control centres have been set up at Kundalahalli in Bangalore. One more control centre and uplink station are to come up in Delhi. The space component for it will become available after the GAGAN payload on the GSAT-8 communication satellite, which was launched recently, is switched on. The reference stations pick up signals from the orbiting GPS satellites. These measurements are immediately passed on to the mission control centres that then work out the necessary corrections that must be made and send to satellites that have GAGAN payload. Those satellites then broadcast the messages. SBAS receivers are able to use those messages and apply the requisite corrections to the GPS signals that they receive, thereby establishing their position with considerable accuracy. Planes with SBAS receivers will be able to take shorter routes, saving both time and fuel. At present, to help pilots land their aircraft in bad weather and poor visibility, several airports use ground-based Instrument Landing System or ILS. Such ILS equipment is expensive. Consequently, even in airports that have it, only one runway and that too one end of a runway have the ILS capability. An SBAS, on the other hand, can provide guidance on both ends of all runways that fall within its coverage area. India’s GAGAN has a reach well beyond the country, from Africa and Middle East on one side to the Bay of Bengal and South-East Asia on the other. It will, therefore, fill a gap between Europe’s EGNOS and Japan’s MSAS systems. 

Friday, 13 March 2015

Economy continues.... 

ADB
The Asian Development Bank (ADB) is a regional development bank established on 22
August 1966 to facilitate economic development of countries in Asia. The bank admits the members of the United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP) and non-regional developed countries.
The ADB offers "hard" loans from ordinary capital resources (OCR) on commercial terms, and the Asian Development Fund (ADF) affiliated with the ADB extends "soft" loans from special fund resources with concessional conditions.The headquarter is at Manila.
DEPRECIATION & DEVALUATION
A devaluation is when a country makes a con­scious decision to lower its exchange rate in a fixed or semi fixed exchange rate. Therefore, tech­nically a devaluation is only possible if a country is a member of some fixed exchange rate policy.
When there is a fall in the value of a currency in a floating exchange rate. This is not due to a government's decision, but due to supply and demand side factors. Although if the govern­ment sold a lot of pounds they could help the
depreciation.
REER & NEER
The indices of Nominal Effective Exchange Rate (NEER) and Real Effective Exchange Rate (REER) are used as indicators of external competitiveness. NEER is the weighted average of bilateral nominal exchange rates of the home currency in terms of foreign currencies. Conceptually, the REER, defined as a weighted average of nominal exchange rates adjusted for relative price differential between the domestic and foreign countries, relates to the purchasing power parity (PPP) hypothesis.
The Reserve Bank of India (RBI) has been constructing five-country and thirty six-country indices of NEER and REER as part of its communication policy and to aid researchers and analysts. Theses indices are published in the Bank's monthly Bulletin.
The NEER is the weighted geometric average of the bilateral nominal exchange rates of the home currency in terms of foreign currencies. The REER is the weighted average of NEER adjusted by the ratio of domestic price to foreign prices.

PURCHASING POWER PARITY
Purchasing power parity (PPP) is an economic theory and a technique used to determine the relative value of currencies, estimating the amount of adjustment needed on the exchange rate between countries in order for the exchange to be equivalent to (or on par with) each currency's purchasing power.[1] It asks how much money would be needed to purchase the same goods and services in two countries, and uses that to calculate an implicit foreign exchange rate. Using that PPP rate, an amount of money thus has the same purchasing power in different countries.

HDI
The Human Development Index (HDI) is a composite statistic used to rank countries by level of human development, and distinguishing "very high human development", "high human devel­opment", "medium human development", and "low human development" countries.
HDI was devised and launched by Pakistani economist Mahbub ul Haq, followed by Indian economist Amartya Sen in 1990.
The HDI is a comparative measure of life expectancy, literacy, education, and standards of living of a country. It is a standard means of measuring well-being, especially child welfare. It is also used to distinguish whether the country is a developed, a developing or an underdeveloped country, and also to measure the impact of economic policies on quality of life. The HDI formula result, is a number from 0 to 1, (1 is the best outcome possible).

GNI
The Gross national income (GNI) consists of: the personal consumption expenditures, the gross private investment, the government consumption expenditures, the net income from assets abroad (net income receipts), and the gross exports of goods and services, after deducting two compo­nents: the gross imports of goods and services, and the indirect business taxes.
The GNI is similar to the gross national prod­uct (GNP), except that in measuring the GNP one does not deduct the indirect business taxes.

NAMA
The Non-Agricultural Market Access (NAMA) negotiations of the World Trade Organization are based on the Doha Declaration of 2001 that calls for a reduction or elimination in tariffs, particularly on exportable goods of interest to developing countries.
NAMA covers manufacturing products, fu­els and mining products, fish and fish products, and forestry products. These products are not covered by the Agreement on Agriculture or the negotiations on services.
The WTO considers the NAMA negotiations important because NAMA products account for almost 90% of the world's merchandise exports.

GATS
The creation of the GATS was one of the landmark achievements of the Uruguay Round, whose results entered into force in January 1995. The GATS was inspired by essentially the same objectives as its counterpart in merchandise trade, the General Agreement on Tariffs and Trade (GATT): creating a credible and reliable system of international trade rules; ensuring fair and equitable treatment of all participants (prin­ciple of non-discrimination); stimulating eco­nomic activity through guaranteed policy bind­ings; and promoting trade and development through progressive liberalization.
The GATS applies in principle to all service sectors, with two exceptions. Article I(3) of the GATS excludes "services supplied in the exer­cise of governmental authority".
SANITARY    &     PHYTOSANITARY CONDITIONS
Sanitary or phyto-sanitary measure — Any measure applied:
(a)    to protect animal or plant life or health within the territory of the Member from risks arising from the entry, establishment or spread of pests, diseases, disease-carrying organisms or disease-causing organisms;
(b)    to protect human or animal life or health within the territory of the Member from risks arising from additives, contaminants, toxins or disease-causing organisms in foods, beverages or feedstuffs;
(c)    to protect human life or health within the territory of the Member from risks arising from diseases carried by animals, plants or products thereof, or from the entry, establishment or spread of pests; or
(d)   to prevent or limit other damage within the territory of the Member from the entry, establishment or spread of pests.

Sanitary or phyto-sanitary measures include all   relevant   laws,   decrees,   regulations, requirements and procedures including, inter alia, end product criteria; processes and production methods; testing, inspection, certification and approval procedures; quarantine treatments including relevant requirements associated with the transport of animals or plants, or with the materials necessary for their survival during transport; packaging and labelling requirements directly related to food safety.

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