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Gol Talab
Gol Talab or Gol Talaab (talab means tank) also known as Nawab Bari Pukur, is a small oval-shaped water tank/pond in Islampur, Old Dhaka, Dhaka, Bangladesh, located immediately to the north-west of the Ahsan Manzil Palace and north of the Buriganga River. Gol Talab is an official heritage site, designated by the city government of Dhaka. Description Gol Talab dates to the 19th century. It covers an area of 2.23 acres and has a maximum depth of . There are plans to upgrade it into a park. The pond is fenced. Vegetation found around the lake consist of trees of coconut, mango, neem, jackfruit and Chinese dates. Aquatic fauna reported are fish, frog, insects and others. The fish species reported are ruhi, tilapia, silver carp, pangash, katal, koi, puti and many more. Invertebrates reported are beetles, dragon flies, grasshoppers, butterflies, small birds and water scorpions. The pond has a bathing ghat only on its northwestern part. Boating competitions are held in the po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gol Talab
Gol Talab or Gol Talaab (talab means tank) also known as Nawab Bari Pukur, is a small oval-shaped water tank/pond in Islampur, Old Dhaka, Dhaka, Bangladesh, located immediately to the north-west of the Ahsan Manzil Palace and north of the Buriganga River. Gol Talab is an official heritage site, designated by the city government of Dhaka. Description Gol Talab dates to the 19th century. It covers an area of 2.23 acres and has a maximum depth of . There are plans to upgrade it into a park. The pond is fenced. Vegetation found around the lake consist of trees of coconut, mango, neem, jackfruit and Chinese dates. Aquatic fauna reported are fish, frog, insects and others. The fish species reported are ruhi, tilapia, silver carp, pangash, katal, koi, puti and many more. Invertebrates reported are beetles, dragon flies, grasshoppers, butterflies, small birds and water scorpions. The pond has a bathing ghat only on its northwestern part. Boating competitions are held in the po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puntius
''Puntius'' is a genus of small freshwater fish in the family Cyprinidae native to South Asia and Mainland Southeast Asia, as well as Taiwan. Many species formerly placed in ''Puntius'' have been moved to other genera such as ''Barbodes'', ''Dawkinsia'', ''Desmopuntius'', ''Haludaria'', ''Oliotius'', ''Pethia'', ''Puntigrus'', ''Sahyadria'' and '' Systomus''.Kottelat, M. (2013)The fishes of the inland waters of southeast Asia: A catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. ''Raffles Bulletin of Zoology, Suppl. No. 27: 1–663.''Pethiyagoda, R., Meegaskumbura, M. & Maduwage, K. (2012)A synopsis of the South Asian fishes referred to ''Puntius'' (Pisces: Cyprinidae).''Ichthyological Exploration of Freshwaters, 23 (1): 69–95.''Raghavan, R., Philip, S., Ali, A. & Dahanukar, N. (2013)''Sahyadria'', a new genus of barbs (Teleostei: Cyprinidae) from Western Ghats of India.''Journal of Threatened Taxa, 5 (15): 4932–4938.'' Etymo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bangladesh Water Development Board
Bangladesh Water Development Board is government agency which is responsible for surface water and groundwater management in Bangladesh and is located in Dhaka. As of 2023, MD. MAHBUR RAHMAN is the director general of the board. History In 1954 to 1956 there were a series of consecutive floods in East Pakistan. J A Crug, US state department official lead a mission to investigate and recommend solutions. On their recommendation East Pakistan Water and Power Development Authority was formed for water management. After the Independence of Bangladesh, the authority was split into Bangladesh Water Development Board and Bangladesh Power Development Board. It is under the Ministry of Water Resources. It manages irrigation canals and prevent river erosion. See also * Char Development and Settlement Project Char Development and Settlement Project () is a Bangladesh government project that seeks to improve the livelihoods of people living in recently emerged chars (river islands). H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biochemical Oxygen Demand
Biochemical oxygen demand (BOD) is the amount of dissolved oxygen (DO) needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at a certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water. BOD reduction is used as a gauge of the effectiveness of wastewater treatment plants. BOD of wastewater effluents is used to indicate the short-term impact on the oxygen levels of the receiving water. BOD analysis is similar in function to chemical oxygen demand (COD) analysis, in that both measure the amount of organic compounds in water. However, COD analysis is less specific, since it measures everything that can be chemically oxidized, rather than just levels of biologically oxidized organic matter. Background Most natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Oxygen Demand
In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed in mass of oxygen consumed over volume of solution which in SI units is milligrams per litre ( mg/ L). A COD test can be used to easily quantify the amount of organics in water. The most common application of COD is in quantifying the amount of oxidizable pollutants found in surface water (e.g. lakes and rivers) or wastewater. COD is useful in terms of water quality by providing a metric to determine the effect an effluent will have on the receiving body, much like biochemical oxygen demand (BOD). Overview The basis for the COD test is that nearly all organic compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent under acidic conditions. The amount of oxygen required to oxidize an organic compound to carbon dioxide, ammonia, and water is given by: :\mbox_n\mbox_a\mb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissolved Oxygen
Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium at the given temperature. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. The standard unit of oxygen saturation is percent (%). Oxygen saturation can be measured regionally and noninvasively. Arterial oxygen saturation (SaO2) is commonly measured using pulse oximetry. Tissue saturation at peripheral scale can be measured using NIRS. This technique can be applied on both muscle and brain. In medicine In medicine, oxygen saturation refers to ''oxygenation'', or when oxygen molecules () enter the tissues of the body. In this case blood is oxygenated in the lungs, where oxygen molecules travel from the air into the blood. Oxygen saturation (() sats) measures the percentage of hemoglobin binding s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conductivity (electrolytic)
Conductivity (or specific conductance) of an electrolyte solution is a measure of its ability to conduct electricity. The SI unit of conductivity is Siemens per meter (S/m). Conductivity measurements are used routinely in many industrial and environmental applications as a fast, inexpensive and reliable way of measuring the ionic content in a solution. For example, the measurement of product conductivity is a typical way to monitor and continuously trend the performance of water purification systems. In many cases, conductivity is linked directly to the total dissolved solids (TDS). High quality deionized water has a conductivity of about 0.05 μS/cm at 25 °C, typical drinking water is in the range of 200–800 μS/cm, while sea water is about 50 mS/cm ncorrect according to source(or 50,000 μS/cm). Conductivity is traditionally determined by connecting the electrolyte in a Wheatstone bridge. Dilute solutions follow Kohlrausch's Laws of concentrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Dissolved Solids
Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular ( colloidal sol) suspended form. TDS concentrations are often reported in parts per million (ppm). Water TDS concentrations can be determined using a digital meter. Generally, the operational definition is that the solids must be small enough to survive filtration through a filter with 2-micrometer (nominal size, or smaller) pores. Total dissolved solids are normally discussed only for freshwater systems, as salinity includes some of the ions constituting the definition of TDS. The principal application of TDS is in the study of water quality for streams, rivers, and lakes. Although TDS is not generally considered a primary pollutant (e.g. it is not deemed to be associated with health effects), it is used as an indication of aesthetic characteristics of drinking water and as an aggregate indicator of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamford University Bangladesh
Stamford University Bangladesh ( bn, স্টামফোর্ড ইউনিভার্সিটি বাংলাদেশ) is a private university in Dhaka, Bangladesh. It was established in 2002 under the Private University Act. Before starting as a university, its predecessor institution was known as a Stamford College Group established in 1994, later it was upgraded as private university of Bangladesh in 2002 and appeared as Stamford University Bangladesh. Stamford University is the first ISO certified university in Bangladesh. Stamford University Bangladesh is fully approved by UGC. University and Campus Stamford University Bangladesh has only one campus in Siddeshwari ( Bailey Road) area of Dhaka city. The campus comprises all of the departments and offices. The campus is one of the largest private university with outdoor basketball ground, a swimming pool, café, and in-campus shop facilities. Departments * Department of Architectur* Department of Busines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghat
Ghat, a term used in the Indian subcontinent, depending on the context could refer either to a range of stepped hills with valleys (ghati in Hindi), such as the Eastern Ghats and Western Ghats; or the series of steps leading down to a body of water or wharf, such as a bathing or cremation place along the banks of a river or pond, the Ghats in Varanasi, Dhobi Ghat or the Aapravasi Ghat.Sunithi L. Narayan, Revathy Nagaswami, 1992Discover sublime India: handbook for tourists Page 5.Ghat definition Cambridge dictionary. Roads passing through ghats are called . Etymology The origin of the English 'ghat' is sa, घट्ट , ' and is normally translated as ghaṭ, quay, landing or ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katal
The katal (symbol: kat) is the unit of catalytic activity in the International System of Units (SI) used for quantifying the catalytic activity of enzymes (that is, measuring the enzymatic activity level in enzyme catalysis) and other catalysts. The katal is invariant of the measurement procedure, but the measured numerical value is not; the value depends on the experimental conditions. Therefore, to define the quantity of a catalyst in katals, the rate of conversion of a defined chemical reaction is specified as moles reacted per second. One katal of trypsin, for example, is that amount of trypsin which breaks one mole of peptide bonds in one second under specified conditions. Definition One katal refers to an enzyme catalysing the reaction of one mole of substrate per second. Because this is such a large unit for most enzymatic reactions, the nanokatal (nkat) is used in practice. :\text=\frac The katal is not used to express the rate of a reaction; that is expressed in un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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