INS Sagardhwani (A74)
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INS Sagardhwani (A74)
INS ''Sagardhwani'' (A74) (Hindi : सागरध्वनि) is a marine acoustic research ship (MARS) owned by the Naval Physical and Oceanographic Laboratory (NPOL), a DRDO laboratory and is maintained and operated by the Indian Navy, and based at Southern Naval Command, Kochi. The ship was built by Garden Reach Shipbuilders & Engineers, Kolkata, launched in May 1991, and commissioned in 1994. It is similar in design to the ''Sandhayak''-class survey ships, but with the superstructure positioned amidships and a helipad forward. The vessel is designed to facilitate low noise and low vibration while carrying out acoustic programmes. It has floating floors for scientific laboratories, anti-vibration mountings for machinery and equipment, balloon launching container and wind weather radar to carry out those experiments. It is also equipped with VHF sets, marine radio and auto telephone exchange. Internally, the ship has eight laboratories for various scientific disciplines, a ...
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Garden Reach Shipbuilders & Engineers
Garden Reach Shipbuilders & Engineers Ltd, abbreviated as GRSE, is one of India's leading shipyards, located in Kolkata. It builds and repairs commercial and naval vessels. GRSE also builds export ships. Founded in 1884 as a small privately-owned company on the eastern bank of the Hooghly River, it was renamed as ''Garden Reach Workshop'' in 1916. The company was nationalised by the Government of India in 1960. It was awarded the Miniratna status, with accompanying financial and operational autonomy in September 2006. It is first Indian shipyard to build 100 warships. Facilities GRSE has ship building facilities in Kolkata and Ranchi. It has a large Computer Aided Design (CAD) centre for ship modelling and design. There are four workshops for plate preparation and steel fabrication. GRSE has a dry dock for ships up to . It has a building berth and two slipways for hull construction. It has a covered all-weather non-tidal wet basin for fitting-out medium and small ships an ...
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Laboratory
A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratory services are provided in a variety of settings: physicians' offices, clinics, hospitals, and regional and national referral centers. Overview The organisation and contents of laboratories are determined by the differing requirements of the specialists working within. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for casting or refining metals or for testing their strength. A chemist or biologist might use a wet laboratory, while a psychologist's laboratory might be a room with one-way mirrors and hidden cameras in which to observe behavior. In some laboratories, such as those commonly used by computer scientists, computers (sometimes supercomputers) are used for either simulations or the analysis of data. Scient ...
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Research Vessels Of India
Research is " creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion on past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, econom ...
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Auxiliary Ships Of The Indian Navy
Auxiliary may refer to: * A backup site or system In language * Auxiliary language (other) * Auxiliary verb In military and law enforcement * Auxiliary police * Auxiliaries, civilians or quasi-military personnel who provide support of some kind to a military service ** Auxiliaries (Roman military) In religion * Auxiliary bishop, in the Roman Catholic Church * Auxiliary organization (LDS Church) In technology * Auxiliary input jack and auxiliary cable, generally for audio; frequently associated with mobile device audio * Aux-send of a mixing console * An auxiliary Port is a common port found on many Cisco routers for CLI access. Other uses * Auxiliary route, also known as "special route", in road transportation ** An auxiliary route of the Interstate Highway System in the United States * Auxiliary ship is a naval vessel designed to operate in support of combat ships and other naval operations * Auxiliary (fraternity or sorority) * A marching band color guard See al ...
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List Of Active Indian Navy Ships
List of active Indian Navy ships is a list of ships in active service with the Indian Navy. In service ships are taken from the official Indian Navy website.Indian Navy Ships
As of July 2022, the Indian Navy possesses 2 s, 1 , 8 Landing ship tanks, 11 destroyers, 13

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Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an Acoustical engineering, acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing (sense), Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, ...
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Helipad
A helipad is a landing area or platform for helicopters and powered lift aircraft. While helicopters and powered lift aircraft are able to operate on a variety of relatively flat surfaces, a fabricated helipad provides a clearly marked hard surface away from obstacles where such aircraft can land safely. Larger helipads, intended for use by helicopters and other vertical take-off and landing aircraft (VTOL), may be called ''vertiports.'' An example is Vertiport Chicago, which opened in 2015. Usage Helipads may be located at a heliport or airport where fuel, air traffic control and service facilities for aircraft are available. Most helipads are located remote from populated areas due to sounds, winds, space and cost constraints. However, some skyscrapers maintain a helipad on their roofs in order to accommodate air taxi services. Some basic helipads are built on top of highrise buildings for evacuation in case of a major fire outbreak. Major police departments may use a d ...
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Sandhayak-class Survey Ships
The ''Sandhayak''-class survey ships are a series of eight vessels built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata and Goa Shipyard, Ltd., Vasco for the Indian Navy. While ''Sandhayak'', ''Investigator'', ''Nirdeshak'', ''Nirupak'' were built in GRSE; ''Sarveshak'', ''Jamuna'', ''Darshak'', ''Sutlej'' were built by Goa Shipyard.Saunders 2002, p. 316. The vessels equipped with four survey motorboats, two small boats and are powered by two diesel engines with a top speed of . They have a helicopter deck and are also armed with a Bofors 40 mm/60 gun mount for self-defense. The ships are equipped with variety of next-generation surveying systems fitted onboard including multi-beam swath echo sounding system, differential gps, motion sensors, sea gravimeter, magnetometer, oceanographic sensors, side scan sonars, automated data logging system, sound velocity profiling system, digital survey and processing system, amongst others. Working as part of Indian Naval H ...
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Southern Naval Command
The Southern Naval Command is one of the three command-level formations of the Indian Navy. It has its headquarters in Kochi, Kerala at INS Venduruthy. It is the Training Command of the Indian Navy. The Command is commanded by a Three Star Flag Officer of the rank of Vice Admiral with the title Flag Officer Commanding-in-Chief Southern Command (FOC-in-C). Vice Admiral M. A. Hampiholi, AVSM, NM is the current FOC-in-C SNC, who took over on 30 November 2021. History After the independence and the partition of India on 15 August 1947, the ships and personnel of the Royal Indian Navy were divided between the Dominion of India and the Dominion of Pakistan. The division of the ships was on the basis of two-thirds of the fleet to India, one third to Pakistan. The shore establishments on the southern coast were headed by the Commodore Cochin (COMCHIN), a one star appointment. The COMCHIN directly reported into the Chief of the Naval Staff. In 1967, the Goa Area was included und ...
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Indian Navy
The Indian Navy is the maritime branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates significantly in the Persian Gulf Region, the Horn of Africa, the Strait of Malacca, and routinely conducts anti-piracy operations and partners with other navies in the region. It also conducts routine two to three month-long deployments in the South and East China seas as well as the western Mediterranean sea simultaneously. The primary objective of the navy is to safeguard the nation's maritime borders, and in conjunction with other Armed Forces of the union, act to deter or defeat any threats or aggression against the territory, people or maritime interests of India, both in war and peace. Through joint exercises, goodwill visits and humanitarian missions, including disaster relief, the Indian Navy promotes bilateral relations between n ...
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DRDO
The Defence Research and Development Organisation (DRDO) (IAST: ''Raksā Anūsandhān Evam Vikās Sangaṭhan'') is the premier agency under the Department of Defence Research and Development in Ministry of Defence of the Government of India, charged with the military's research and development, headquartered in Delhi, India. It was formed in 1958 by the merger of the Technical Development Establishment and the Directorate of Technical Development and Production of the Indian Ordnance Factories with the Defence Science Organisation. Subsequently, Defence Research & Development Service (DRDS) was constituted in 1979 as a service of Group 'A' Officers / Scientists directly under the administrative control of Ministry of Defence. With a network of 52 laboratories that are engaged in developing defence technologies covering various fields like aeronautics, armaments, electronics, land combat engineering, life sciences, materials, missiles, and naval systems, DRDO is India's largest ...
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