in the camera for to be uploaded into a computer or printer later. Images may also be archived on a photographic compact disc or external hard disk. F. A photocopier is any electrically operated machine using a photographic method‚ as the electrostatic process‚ for making instant copies of written‚
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Phenol‚ also known as carbolic acid‚ is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (-C6H5) bonded to a hydroxyl group (-OH). It is mildly acidic‚ but requires careful handling due to its propensity to cause chemical burns. Phenol was first extracted from coal tar‚ but today is produced on a large scale (about 7 billion kg/year) from petroleum. It is an important industrial commodity as a
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associated with a definite number of water molecules. The water is present as individual water molecules and usually no chemical bonds are involved in holding the ions of the compound and the water molecules together. The forces of attraction are electrostatic forces resulting from the charged nature of the anhydrous ionic compound and the polar water molecules. Particle size and space limitations dictate the number of water molecules an ionic compound will accommodate and well as the conditions under
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Electromagnetism From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Electromagnetism is the physics of the electromagnetic field‚ a field that exerts a force on particles with the property of electric charge and is reciprocally affected by the presence and motion of such particles. A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction‚ the basis of operation for electrical generators‚ induction motors‚ and transformers). Similarly
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Liposomes Definition and background10 Liposomes were discovered in the early 1960’s and subsequently studied as cell membrane models. They have since gained recognition in the field of drug delivery. Liposomes are spherical vesicles which can be thought of as a hollow sphere they are composed of a bilayer membrane which entraps an aqueous core. The particle size of liposomes ranges from 20 nm to 10 μm in diameter. Liposomes vary in charge and in size depending on their manufacturing protocol
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INTRODUCTION NTPC was incorporated on November 7‚ 1975 under the Companies Act as a private limited company under the name National Thermal Power Corporation Private Limited‚ and the word ’Private’ was deleted on September30‚ 1976 consequent upon the notification issued by the Government of India exempting government companies from the use of word ’private’ in their name. On September 30 1985‚ NTPC Company was converted from
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(Pan et al.‚ 2012; Teixidó et al.‚ 2011; Wu et al.‚ 2013; Han et al. 2013). Related sorption mechanisms have been attributed to charge-assisted H-bonds‚ hydrophobic interaction‚ π-π electron donor-acceptor interaction and micropore-filling and electrostatic repulsion (Ji et al.‚ 2011; Teixidó et al.‚ 2011; Wu et al.‚ 2013; Zheng et al.‚ 2013). Additionally‚ biochar indirectly increases the sorption of organic pollutants in soil‚ since the retardation and sequestration
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which contain sulphur. Purification of sulphur dioxide 1. The sulphur dioxide is then purified‚ by removing impurities like arsenic compounds whichwould otherwise poison the catalyst.2. It is then passed through an electrostatic dust precipitator‚ which‚ as its name implies‚charges dust particles which are then removed by being attracted to oppositely chargedplates. Stage 2 Formation of Sulphur trioxide sulphur dioxide + oxygen ---> sulphur trioxide 2SO 2
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Electronics and Electrical Engineering Course Structure and Syllabus for BTech in Electronics and Electrical Engineering (to be applicable from 2010 batch onwards) Course No. CH101 CH110 EE101 MA101 ME110/ PH 110 ME 111 PH101 SA 101 Course Name Semester - 1 Chemistry Chemistry Laboratory Electrical Sciences Mathematics - I Workshop /Physics Laboratory Engineering Drawing Physics - I Physical Training -I NCC/NSO/NSS 3 0 3 3 0 0 2 0 0 11 Semester 3 MA201 EE200 EE201 EE220 HS2xx EE202 SA201 Mathematics
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Network security Security has moved to the forefront of network management and implementation. The overall security challenge is to find a balance between two important requirements: the need to open networks to support evolving business opportunities‚ and the need to protect private‚ personal‚ and strategic business information. The application of an effective security policy is the most important step that an organization can take to protect its network. It provides guidelines about the activities
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