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85-625: Jamuna Multi-purpose Bridge ( Bengali : যমুনা বহুমুখী সেতু , romanized :  Jamuna Bahumukhee Setu ), also known as Bangabandhu Bridge , is a bridge opened in Bangladesh in June 1998. It connects Bhuapur on the Jamuna River 's east bank to Sirajganj on its west bank. 90% of this bridge in under Tangail district and 10% under Sirajganj district. So it's mainly located in Tangail District.It

170-403: A copper alloy laced with lead. Since the beginning of metallurgy the majority of castings were simple one to two piece molds fashioned from either stone or ceramics. However, there is evidence of lost wax castings in numerous ancient civilizations. The lost wax process originated in ancient Mesopotamia . The earliest known record of lost-wax casting is a clay tablet written in cuneiform in

255-619: A dual broad and metre gauge railway track . It also carries pylons for a powerline . The extension of the bridge cost $ 134 million extra later on. Within a decade of inauguration, cracks were detected on the bridge prompting the authorities to impose limits on the number of vehicles allowed to cross at any given time. By early 2008, the government announced its intention to sue the South Korean conglomerate Hyundai for flawed design. During March 2006-June 2006, Bangladesh University of Engineering and Technology experts worked to identify

340-618: A 'design and build' contract. TY Lin Assoc. of San Francisco carried out the design as a sub-contractor for Hyundai. The approach roads were constructed by Samwhan Corporation ( Korea ). The bridge is supported on tubular steel piles , driven into the river bed . Sand was removed from within the piles by airlifting and replaced with concrete . Out of the 50 piers , 21 piers are supported on groups of three piles (each of 2.5 m diameter) and 29 piers on groups of two piles (each of 3.15 diameter). The driving of 121 piles started on 15 October 1995 and

425-423: A 0.57 metre width central barrier; the rail track is along the north side of the deck. On the main bridge, electrical interconnector pylons are positioned on brackets cantilevered from the north side of the deck. Telecommunication ducts run through the box girder deck and the gas pipeline is under the south cantilever of the box section. The bridge has been built by Hyundai Engineering and Construction ( Korea ) as

510-492: A bid to lessen this burden on young learners, efforts have been made by educational institutions in the two main Bengali-speaking regions (West Bengal and Bangladesh) to address the opaque nature of many consonant clusters, and as a result, modern Bengali textbooks are beginning to contain more and more "transparent" graphical forms of consonant clusters, in which the constituent consonants of a cluster are readily apparent from

595-494: A clay cylinder so molten metal could be poured down the center, filling and solidifying in the open spaces. This process allowed one hundred coins to be produced simultaneously. In the Middle East and West Africa the lost wax technique was used very early in their metallurgy traditions while China adopted it much later. In Western Europe lost wax techniques are considered to have been hardly used especially in comparison to that of

680-495: A cost of $ 696 million. But the whole bridge project cost $ 1.24 billion for unknown reason. The cost was shared by IDA , ADB , OECD , and the government of Bangladesh. Of the total, IDA, ADB and OECD supplied $ 200 million each through a loan with 1% nominal interest, and the remaining $ 96 million was borne by Bangladesh. The main bridge is 4.98 kilometres (3.09 mi) long with 49 main spans of approximately 99 metres and two end spans of approximately 65 metres. Connected to

765-590: A different word from a speaker of Standard Bengali in Bangladesh, even though both words are of native Bengali descent. For example, the word salt is লবণ lôbôṇ in the east which corresponds to নুন nun in the west. Bengali exhibits diglossia , though some scholars have proposed triglossia or even n-glossia or heteroglossia between the written and spoken forms of the language. Two styles of writing have emerged, involving somewhat different vocabularies and syntax : Linguist Prabhat Ranjan Sarkar categorises

850-480: A diphthong. The total number of diphthongs is not established, with bounds at 17 and 31. An incomplete chart is given by Sarkar (1985) of the following: In standard Bengali, stress is predominantly initial. Bengali words are virtually all trochaic ; the primary stress falls on the initial syllable of the word, while secondary stress often falls on all odd-numbered syllables thereafter, giving strings such as in সহযোগিতা shô -hô- jo -gi- ta "cooperation", where

935-672: A large scale and were communally limited. Owing to Bengal's geographic location, Bengali areas bordering non-Bengali regions have been influenced by each other. Small numbers of people in Midnapore , which borders Odisha , have used the Odia script to write in Bengali. In the border areas between West Bengal and Bihar , some Bengali communities historically wrote Bengali in Devanagari , Kaithi and Tirhuta . In Sylhet and Bankura , modified versions of

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1020-660: A majority in Bangladesh speaks dialects notably different from SCB. Some dialects, particularly those of the Chittagong region, bear only a superficial resemblance to SCB. The dialect in the Chittagong region is least widely understood by the general body of Bengalis. The majority of Bengalis are able to communicate in more than one variety – often, speakers are fluent in Cholitobhasha (SCB) and one or more regional dialects. Even in SCB,

1105-599: A part in the adoption of the English alphabet to write Bengali, with certain social media influencers publishing entire novels in Roman Bengali. Casting Throughout history, metal casting has been used to make tools, weapons, and religious objects. Metal casting history and development can be traced back to Southern Asia (China, India, Pakistan, etc). Southern Asia traditions and religions relied heavily on statue and relic castings. These items were frequently made from

1190-562: A rounded total of 280 million) worldwide. The Bengali language is native to the region of Bengal , which comprises the present-day nation of Bangladesh and the Indian state of West Bengal . Besides the native region it is also spoken by the Bengalis living in Tripura , southern Assam and the Bengali population in the Indian union territory of Andaman and Nicobar Islands . Bengali is also spoken in

1275-408: A special diacritic, called the hôsôntô (্) , may be added below the basic consonant grapheme (as in ম্ [m] ). This diacritic, however, is not common and is chiefly employed as a guide to pronunciation. The abugida nature of Bengali consonant graphemes is not consistent, however. Often, syllable-final consonant graphemes, though not marked by a hôsôntô , may carry no inherent vowel sound (as in

1360-575: A state language of the then Dominion of Pakistan . On 21 February 1952, five students and political activists were killed during protests near the campus of the University of Dhaka ; they were the first ever martyrs to die for their right to speak their mother tongue. In 1956, Bengali was made a state language of Pakistan. 21 February has since been observed as Language Movement Day in Bangladesh and has also been commemorated as International Mother Language Day by UNESCO every year since 2000. In 2010,

1445-463: A vowel in isolation from any preceding or following consonant, the independent form of the vowel is used. For example, in মই [moj] "ladder" and in ইলিশ [iliʃ] "Hilsa fish", the independent form of the vowel ই is used (cf. the dependent form ি) . A vowel at the beginning of a word is always realised using its independent form. In addition to the inherent-vowel-suppressing hôsôntô , three more diacritics are commonly used in Bengali. These are

1530-494: Is Bangladesh's national march, written by The National Poet Kazi Nazrul Islam in Bengali in 1928. It was adopted as the national marching song by the Bangladeshi government in 1972. Additionally, the first two verses of Vande Mataram , a patriotic song written in Bengali by Bankim Chandra Chatterjee , was adopted as the "national song" of India in both the colonial period and later in 1950 in independent India. Furthermore, it

1615-536: Is a classical Indo-Aryan language from the Indo-European language family native to the Bengal region of South Asia. With over 237 million native speakers and another 41 million as second language speakers as of 2024, Bengali is the fifth most spoken native language and the seventh most spoken language by the total number of speakers in the world. It is the fifth most spoken Indo-European language . Bengali

1700-468: Is a cursive script with eleven graphemes or signs denoting nine vowels and two diphthongs , and thirty-nine graphemes representing consonants and other modifiers. There are no distinct upper and lower case letter forms. The letters run from left to right and spaces are used to separate orthographic words . Bengali script has a distinctive horizontal line running along the tops of the graphemes that links them together called মাত্রা matra . Since

1785-446: Is a common means of making washstands, washstand tops and shower stalls, with the skilled working of multiple colors resulting in simulated staining patterns as is often found in natural marble or travertine . Raw castings often contain irregularities caused by seams and imperfections in the molds, as well as access ports for pouring material into the molds. The process of cutting, grinding, shaving or sanding away these unwanted bits

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1870-400: Is an abugida , a script with letters for consonants, with diacritics for vowels, and in which an inherent vowel (অ ô ) is assumed for consonants if no vowel is marked. The Bengali alphabet is used throughout Bangladesh and eastern India (Assam, West Bengal, Tripura). The Bengali alphabet is believed to have evolved from a modified Brahmic script around 1000 CE (or 10th–11th century). It

1955-445: Is attributed as one of the first civilizations to use casting methods to mass produce coins. Around the middle of the first millennium BC (1000 BC - 1 BC), coins used were made from silver but as the millennium progressed the coins shifted to a cast copper alloy. New technology was developed to mass produce the new copper coins. Introduced was a multi piece stackable coin template mold. Multiple molds were placed on top of one another into

2040-668: Is believed by many that the national anthem of Sri Lanka ( Sri Lanka Matha ) was inspired by a Bengali poem written by Rabindranath Tagore , while some even believe the anthem was originally written in Bengali and then translated into Sinhala . After the contribution made by the Bangladesh UN Peacekeeping Force in the Sierra Leone Civil War under the United Nations Mission in Sierra Leone ,

2125-446: Is called "fettling" in UK english. In modern times robotic processes have been developed to perform some of the more repetitive parts of the fettling process, but historically fettlers carried out this arduous work manually, and often in conditions dangerous to their health. Fettling can add significantly to the cost of the resulting product, and designers of molds seek to minimize it through

2210-699: Is considered a separate language, although it shares similarities to Northern Bengali dialects. During the standardisation of Bengali in the 19th century and early 20th century, the cultural centre of Bengal was in Kolkata , a city founded by the British. What is accepted as the standard form today in both West Bengal and Bangladesh is based on the West-Central dialect of Nadia and Kushtia District . There are cases where speakers of Standard Bengali in West Bengal will use

2295-693: Is flat and lacks transparency. Often topical treatments are applied to the surface. For example, painting and etching can be used in a way that give the appearance of metal or stone. Alternatively, the material is altered in its initial casting process and may contain colored sand so as to give an appearance of stone. By casting concrete, rather than plaster, it is possible to create sculptures, fountains, or seating for outdoor use. A simulation of high-quality marble may be made using certain chemically-set plastic resins (for example epoxy or polyester which are thermosetting polymers ) with powdered stone added for coloration, often with multiple colors worked in. The latter

2380-404: Is known as Apabhraṃśa , by the end of the first millennium. The Bengali language evolved as a distinct language over the course of time. Though some archaeologists claim that some 10th-century texts were in Bengali, it is not certain whether they represent a differentiated language or whether they represent a stage when Eastern Indo-Aryan languages were differentiating. The local Apabhraṃśa of

2465-477: Is set out below in the International Phonetic Alphabet (upper grapheme in each box) and romanisation (lower grapheme). Bengali is known for its wide variety of diphthongs , combinations of vowels occurring within the same syllable . Two of these, /oi̯/ and /ou̯/ , are the only ones with representation in script, as ঐ and ঔ respectively. /e̯ i̯ o̯ u̯/ may all form the glide part of

2550-545: Is the official , national , and most widely spoken language of Bangladesh , with 98% of Bangladeshis using Bengali as their first language. It is the second-most widely spoken language in India . It is the official language of the Indian states of West Bengal and Tripura and the Barak Valley region of the state of Assam . It is also the second official language of the Indian state of Jharkhand since September 2011. It

2635-500: Is the most widely spoken language in the Andaman and Nicobar Islands in the Bay of Bengal , and is spoken by significant populations in other states including Bihar , Arunachal Pradesh , Delhi , Chhattisgarh , Meghalaya , Mizoram , Nagaland , Odisha and Uttarakhand . Bengali is also spoken by the Bengali diasporas ( Bangladeshi diaspora and Indian Bengalis) across Europe, North America,

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2720-500: The Aesop's Fables in Bengali was printed using Roman letters based on English phonology by the Scottish linguist John Gilchrist . Consecutive attempts to establish a Roman Bengali have continued across every century since these times, and have been supported by the likes of Suniti Kumar Chatterji , Muhammad Qudrat-i-Khuda , and Muhammad Enamul Haq . The Digital Revolution has also played

2805-606: The Arabic , Persian , and Turkic languages . The arrival of merchants and traders from the Middle East and Turkestan into the Buddhist -ruling Pala Empire , from as early as the 7th century, gave birth to Islamic influence in the region. In the 13th century, subsequent Arab Muslim and Turco-Persian expeditions to Bengal heavily influenced the local vernacular by settling among the native population. Bengali absorbed Arabic and Persian influences in its vocabulary and dialect, including

2890-468: The Constitution of Bangladesh states Bengali to be the sole official language of Bangladesh. The Bengali Language Implementation Act, 1987 , made it mandatory to use Bengali in all records and correspondences, laws, proceedings of court and other legal actions in all courts, government or semi-government offices, and autonomous institutions in Bangladesh. It is also the de facto national language of

2975-564: The Kaithi script had some historical prominence, mainly among Muslim communities. The variant in Sylhet was identical to the Baitali Kaithi script of Hindustani with the exception of Sylhet Nagri possessing matra . Sylhet Nagri was standardised for printing in c.  1869 . Up until the 19th century, numerous variations of the Arabic script had been used across Bengal from Chittagong in

3060-520: The Nadia region . Bengali shows a high degree of diglossia , with the literary and standard form differing greatly from the colloquial speech of the regions that identify with the language. Modern Bengali vocabulary is based on words inherited from Magadhi Prakrit and Pali, along with tatsamas and reborrowings from Sanskrit and borrowings from Persian , Arabic , Austroasiatic languages and other languages with which it has historically been in contact. In

3145-590: The University of Karachi (established by East Pakistani politicians before Independence of Bangladesh ) also offers regular programs of studies at the Bachelors and at the Masters levels for Bengali Literature. The national anthems of both Bangladesh ( Amar Sonar Bangla ) and India ( Jana Gana Mana ) were written in Bengali by the Bengali Nobel laureate Rabindranath Tagore . Notuner Gaan known as " Chol Chol Chol"

3230-499: The boldface represents primary and secondary stress. Native Bengali words do not allow initial consonant clusters ; the maximum syllabic structure is CVC (i.e., one vowel flanked by a consonant on each side). Many speakers of Bengali restrict their phonology to this pattern, even when using Sanskrit or English borrowings, such as গেরাম geram (CV.CVC) for গ্রাম gram (CCVC) "village" or ইস্কুল iskul (VC.CVC) for স্কুল skul (CCVC) "school". The Bengali-Assamese script

3315-557: The phonology of Eastern Bengali is seen through the lack of nasalised vowels and an alveolar articulation of what are categorised as the "cerebral" consonants (as opposed to the postalveolar articulation of western Bengal). Some varieties of Bengali, particularly Sylheti , Chittagonian and Chakma , have contrastive tone ; differences in the pitch of the speaker's voice can distinguish words. Kharia Thar and Mal Paharia are closely related to Western Bengali dialects, but are typically classified as separate languages. Similarly, Hajong

3400-608: The 16th century, Portuguese missionaries began a tradition of using the Roman alphabet to transcribe the Bengali language. Though the Portuguese standard did not receive much growth, a few Roman Bengali works relating to Christianity and Bengali grammar were printed as far as Lisbon in 1743. The Portuguese were followed by the English and French respectively, whose works were mostly related to Bengali grammar and transliteration. The first version of

3485-637: The 19th and 20th centuries, there were two standard forms of written Bengali: In 1948, the government of Pakistan tried to impose Urdu as the sole state language in Pakistan, giving rise to the Bengali language movement . This was a popular ethnolinguistic movement in the former East Bengal (today Bangladesh ), which arose as a result of the strong linguistic consciousness of the Bengalis and their desire to promote and protect spoken and written Bengali's recognition as

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3570-576: The 6th century, which competed with the ancestor of Bengali for some time. The ancestor of Bengali was the language of the Pala Empire and the Sena dynasty . During the medieval period, Middle Bengali was characterised by the elision of the word-final অ ô and the spread of compound verbs, which originated from the Sanskrit Schwa . Slowly, the word-final ô disappeared from many words influenced by

3655-451: The Bengali equivalent of a full stop – have been adopted from Western scripts and their usage is similar. Unlike in Western scripts (Latin, Cyrillic, etc.) where the letter forms stand on an invisible baseline, the Bengali letter-forms instead hang from a visible horizontal left-to-right headstroke called মাত্রা matra . The presence and absence of this matra can be important. For example,

3740-426: The Bengali script is an abugida, its consonant graphemes usually do not represent phonetic segments , but carry an "inherent" vowel and thus are syllabic in nature. The inherent vowel is usually a back vowel , either [ɔ] as in মত [m ɔ t] "opinion" or [o] , as in মন [m o n] "mind", with variants like the more open [ɒ] . To emphatically represent a consonant sound without any inherent vowel attached to it,

3825-511: The Indus valley civilization. There were no pieces of lost wax found in the capital of Anyang during the Shane dynasty (1600-1040 BC) while a large amount (100,000 pieces) of piece-mould fragments were found. This led to the conclusion that lost wax was not performed in the capital during this dynasty. However, the discovery of a mask made using the investment moulding dated at around 1300 BC indicated that

3910-520: The Middle East and other regions. Bengali was accorded the status of a classical language by the government of India on 3 October 2024. It is the second most spoken and fourth fastest growing language in India , following Hindi in the first place, Kashmiri in the second place, and Meitei ( Manipuri ), along with Gujarati , in the third place, according to the 2011 census of India . Bengali has developed over more than 1,400 years. Bengali literature , with its millennium-old literary history,

3995-408: The ancient city of Sparta, Babylon, which specifically records how much wax is needed to cast a key. The earliest-known castings in the global archaeological record were made in open stone molds. There are two types of lost wax methods, direct lost wax method and indirect lost wax method. The direct molding method is to make the wax material into the same wax mold as the casting by hand or other tools;

4080-536: The basis of modern standard colloquial Bengali. In the dialects prevalent in much of eastern and south-eastern Bangladesh ( Barisal , Chittagong , Dhaka and Sylhet Divisions of Bangladesh), many of the stops and affricates heard in West Bengal and western Bangladesh are pronounced as fricatives . Western alveolo-palatal affricates চ [ tɕɔ ] , ছ [ tɕʰɔ ] , জ [ dʑɔ ] correspond to eastern চ [tsɔ] , ছ [tsʰɔ~sɔ] , জ [dzɔ~zɔ] . The influence of Tibeto-Burman languages on

4165-504: The bridge are east and west approach viaducts each with 12 spans of 10 metre length and transition spans of 8 metres. The total width of the bridge deck is 18.5 metres. The river crossing was designed to carry a dual two-lane carriageway , a dual gauge ( broad and metre ) railway , a high voltage (230 kV) electrical interconnector , telecommunication cables and a 750 mm diameter high pressure natural gas pipeline . The carriageways are 6.315 metres wide separated by

4250-408: The casting process (such as the runners and risers). Plaster and other chemical curing materials such as concrete and plastic resin may be cast using single-use waste molds as noted above, multiple-use 'piece' molds, or molds made of small rigid pieces or of flexible material such as latex rubber (which is in turn supported by an exterior mold). When casting plaster or concrete, the material surface

4335-463: The casting with iron bands. In metalworking, metal is heated until it becomes liquid and is then poured into a mold. The mold is a hollow cavity that includes the desired shape, but the mold also includes runners and risers that enable the metal to fill the mold. The mold and the metal are then cooled until the metal solidifies. The solidified part (the casting) is then recovered from the mold. Subsequent operations remove excess material caused by

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4420-479: The causes of extensive cracking of prestressed concrete deck, web and pear head units of almost all segments of the Bridge. The cracks were identified primarily on the longitudinal direction of the bridge deck with some secondary crackings also in the transverse direction. In the analytical investigation, three dimensional model of the bridge was developed in finite elements methods. Repair and strengthening effort included

4505-469: The consonant which comes first is put on top of or to the left of the one that immediately follows. In these ligatures, the shapes of the constituent consonant signs are often contracted and sometimes even distorted beyond recognition. In the Bengali writing system, there are nearly 285 such ligatures denoting consonant clusters. Although there exist a few visual formulas to construct some of these ligatures, many of them have to be learned by rote. Recently, in

4590-503: The country. In India, Bengali is one of the 23 official languages . It is the official language of the Indian states of West Bengal , Tripura and in Barak Valley of Assam . Bengali has been a second official language of the Indian state of Jharkhand since September 2011. In Pakistan , Bengali is a recognised secondary language in the city of Karachi mainly spoken by stranded Bengalis of Pakistan . The Department of Bengali in

4675-587: The development of Dobhashi . Bengali acquired prominence, over Persian, in the court of the Sultans of Bengal with the ascent of Jalaluddin Muhammad Shah . Subsequent Muslim rulers actively promoted the literary development of Bengali, allowing it to become the most spoken vernacular language in the Sultanate. Bengali adopted many words from Arabic and Persian , which was a manifestation of Islamic culture on

4760-672: The east to Meherpur in the west. The 14th-century court scholar of Bengal, Nur Qutb Alam , composed Bengali poetry using the Persian alphabet . After the Partition of India in the 20th century, the Pakistani government attempted to institute the Perso-Arabic script as the standard for Bengali in East Pakistan ; this was met with resistance and contributed to the Bengali language movement. In

4845-549: The eastern subcontinent, Purbi Apabhraṃśa or Abahatta (lit. 'meaningless sounds'), eventually evolved into regional dialects, which in turn formed three groups, the Bengali–Assamese languages , the Bihari languages , and the Odia language . The language was not static: different varieties coexisted and authors often wrote in multiple dialects in this period. For example, Ardhamagadhi is believed to have evolved into Abahatta around

4930-487: The entire casting manufacturing route. Casting process simulation was initially developed at universities starting from the early ' 70s , mainly in Europe and in the U.S. , and is regarded as the most important innovation in casting technology over the last 50 years. Since the late ' 80s , commercial programs (such as PoligonSoft, AutoCAST and Magma) are available which make it possible for foundries to gain new insight into what

5015-466: The final ন in মন [m o n] or the medial ম in গামলা [ɡamla] ). A consonant sound followed by some vowel sound other than the inherent [ɔ] is orthographically realised by using a variety of vowel allographs above, below, before, after, or around the consonant sign, thus forming the ubiquitous consonant-vowel typographic ligatures . These allographs, called কার kar , are diacritical vowel forms and cannot stand on their own. For example,

5100-454: The fluidity of molten copper, allowing them to cast more intricate designs. For example, the dancing girl of Mohenjo-daro is a copper alloy casting that most likely utilizes the lost wax technique. Lost wax casting can be dated back to 4000 BC or the Chalcolithic period. One of the oldest studied examples of this technique is a 6,000-year old amulet from Indus valley civilization . India

5185-714: The government of Ahmad Tejan Kabbah declared Bengali as an honorary official language in December 2002. In 2009, elected representatives in both Bangladesh and West Bengal called for Bengali to be made an official language of the United Nations . Regional varieties in spoken Bengali constitute a dialect continuum . Linguist Suniti Kumar Chatterji grouped the dialects of Bengali language into four large clusters: Rarhi , Vangiya , Kamrupi and Varendri ; but many alternative grouping schemes have also been proposed. The south-western dialects ( Rarhi or Nadia dialect) form

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5270-499: The graph মি [mi] represents the consonant [m] followed by the vowel [i] , where [i] is represented as the diacritical allograph ি (called ই-কার i-kar ) and is placed before the default consonant sign. Similarly, the graphs মা [ma] , মী [mi] , মু [mu] , মূ [mu] , মৃ [mri] , মে [me~mɛ] , মৈ [moj] , মো [mo] and মৌ [mow] represent the same consonant ম combined with seven other vowels and two diphthongs. In these consonant-vowel ligatures,

5355-412: The graphical form. However, since this change is not as widespread and is not being followed as uniformly in the rest of the Bengali printed literature, today's Bengali-learning children will possibly have to learn to recognise both the new "transparent" and the old "opaque" forms, which ultimately amounts to an increase in learning burden. Bengali punctuation marks, apart from the downstroke । daṛi –

5440-513: The indirect molding method is to make the wax mold through the mold. The direct molding method requires craftsmen to have a high technical level, otherwise the quality of castings cannot be guaranteed. However, the limitation of manual direct molding is that its efficiency is too low to achieve mass production. In this regard, indirect moulding has advantages. In indirect moulding, artisans usually make moulds from stone, wood, clay or other plastic materials. Early civilizations discovered lead aided in

5525-483: The language as: While most writing is in Standard Colloquial Bengali (SCB), spoken dialects exhibit a greater variety. People in southeastern West Bengal, including Kolkata, speak in SCB. Other dialects, with minor variations from Standard Colloquial, are used in other parts of West Bengal and western Bangladesh, such as the Midnapore dialect, characterised by some unique words and constructions. However,

5610-510: The language movement. Although Sanskrit has been spoken by Hindu Brahmins in Bengal since the 3rd century BC, the local Buddhist population spoke varieties of the Prakrit . These varieties are generally referred to as "eastern Magadhi Prakrit ", as coined by linguist Suniti Kumar Chatterji , as the Middle Indo-Aryan dialects were influential in the first millennium when Bengal

5695-535: The language. Major texts of Middle Bengali (1400–1800) include Yusuf-Zulekha by Shah Muhammad Sagir and Srikrishna Kirtana by the Chandidas poets. Court support for Bengali culture and language waned when the Mughal Empire conquered Bengal in the late 16th and early 17th century. The modern literary form of Bengali was developed during the 19th and early 20th centuries based on the west-central dialect spoken in

5780-428: The letter ত tô and the numeral ৩ "3" are distinguishable only by the presence or absence of the matra , as is the case between the consonant cluster ত্র trô and the independent vowel এ e , also the letter হ hô and Bengali Ôbogroho ঽ (~ô) and letter ও o and consonant cluster ত্ত ttô . The letter-forms also employ the concepts of letter-width and letter-height (the vertical space between

5865-471: The lost wax technique may have influenced other regions in China. Historians debate the origin of the development of the cannon but most evidence points to Turkey and Central Asia in the 18th and 19th century. The casting process of a cannon is a bit more complex with the use of a clay core, a template which has clay moulded around it and then broken out followed by an assembly in a casting pit that involves binding

5950-585: The neighbouring states of Odisha , Bihar , and Jharkhand , and sizeable minorities of Bengali speakers reside in Indian cities outside Bengal, including Delhi , Mumbai , Thane , Varanasi , and Vrindavan . There are also significant Bengali-speaking communities in the Middle East , the United States , Singapore , Malaysia , Australia , Canada , the United Kingdom , and Italy . The 3rd article of

6035-514: The parliament of Bangladesh and the legislative assembly of West Bengal proposed that Bengali be made an official UN language. As of January 2023, no further action has been yet taken on this matter. However, in 2022, the UN did adopt Bangla as an unofficial language, after a resolution tabled by India. In 2024, the government of India conferred Bengali with the status of classical language . Approximate distribution of native Bengali speakers (assuming

6120-425: The piers to 3.25 metres at mid-span. An expansion joint is provided every 7 spans by means of a hinge segment at approximately quarter span. The segments were precast and erected using a two-span erection gantry .The erection gantry was designed by Butterley Engineering Ltd. from Ripley, Derbyshire, UK and at 200m long was thought to be one of the largest in the world at that time. The Bangabandhu Bridge carries

6205-611: The replacement of modular expansion joints, strengthening the deck with carbon fiber reinforced polymer strips, web-deck connection improvement by carbon fiber reinforced fabrics and also sealing of non-structural cracks. These were conducted in phases. After repair and strengthening, performance of the bridge monitored. Health monitoring campaign was conducted by Bangladesh University of Engineering and Technology for first few years to take reference measurements. Bengali language Bengali , also known by its endonym Bangla ( বাংলা , Bāṅlā , [ˈbaŋla] ),

6290-413: The required component properties. This has benefits beyond a reduction in pre-production sampling, as the precise layout of the complete casting system also leads to energy , material, and tooling savings. The software supports the user in component design, the determination of melting practice and casting methoding through to pattern and mold making, heat treatment , and finishing. This saves costs along

6375-499: The shape of the mold, the material being cast, and sometimes by including decorative elements. Casting process simulation uses numerical methods to calculate cast component quality considering mold filling, solidification and cooling, and provides a quantitative prediction of casting mechanical properties, thermal stresses and distortion. Simulation accurately describes a cast component's quality up-front before production starts. The casting rigging can be designed with respect to

6460-427: The so-called "inherent" vowel [ɔ] is first expunged from the consonant before adding the vowel, but this intermediate expulsion of the inherent vowel is not indicated in any visual manner on the basic consonant sign ম [mɔ] . The vowel graphemes in Bengali can take two forms: the independent form found in the basic inventory of the script and the dependent, abridged, allograph form (as discussed above). To represent

6545-432: The structure and minimise damage. The main bridge deck is a multi-span precast prestressed concrete segmental structure, constructed by the balanced cantilever method. Each cantilever has 12 segments (each 4 m long), joined to a pierhead unit (2 m long) at each pier and by an in-situ stitch at mid span. The deck is internally prestressed and of single box section. The depth of the box varies between 6.5 metres at

6630-536: The superposed chôndrôbindu (ঁ) , denoting a suprasegmental for nasalisation of vowels (as in চাঁদ [tʃãd] "moon"), the postposed ônusbar (ং) indicating the velar nasal [ŋ] (as in বাংলা [baŋla] "Bengali") and the postposed bisôrgô (ঃ) indicating the voiceless glottal fricative [h] (as in উঃ! [uh] "ouch!") or the gemination of the following consonant (as in দুঃখ [dukʰːɔ] "sorrow"). The Bengali consonant clusters ( যুক্তব্যঞ্জন juktôbênjôn ) are usually realised as ligatures, where

6715-466: The two parts of the country has had to rely on time-consuming ferry services that were often disrupted because of navigability problems. The need for a bridge over the Jamuna River was felt, especially by the people living in northwestern Bangladesh, for a long time. This perceived need did not go unnoticed by the policy makers. Jamuna Multipurpose Bridge was constructed by Hyundai Heavy Industries at

6800-484: The visible matra and an invisible baseline). There is yet to be a uniform standard collating sequence (sorting order of graphemes to be used in dictionaries, indices, computer sorting programs, etc.) of Bengali graphemes. Experts in both Bangladesh and India are currently working towards a common solution for this problem. Throughout history, there have been instances of the Bengali language being written in different scripts, though these employments were never popular on

6885-435: The vocabulary may differ according to the speaker's religion: Muslims are more likely to use words of Persian and Arabic origin, along with more words naturally derived from Sanskrit ( tadbhava ), whereas Hindus are more likely to use tatsama (words directly borrowed from Sanskrit). For example: The phonemic inventory of standard Bengali consists of 29 consonants and 7 vowels, as well as 7 nasalised vowels . The inventory

6970-554: Was a part of the Greater Magadhan realm. The local varieties had no official status during the Gupta Empire , and with Bengal increasingly becoming a hub of Sanskrit literature for Hindu priests, the vernacular of Bengal gained a lot of influence from Sanskrit. Magadhi Prakrit was also spoken in modern-day Bihar and Assam , and this vernacular eventually evolved into Ardha Magadhi . Ardha Magadhi began to give way to what

7055-460: Was completed in July 1996. The pier stems are founded on concrete pilecaps , whose shells were precast and infilled with in-situ reinforced concrete . The reinforced concrete pier stems support pierheads which contain bearings and seismic devices . These allow movement of the deck under normal loading conditions but lock in the event of an earthquake to limit overall seismic loads through

7140-597: Was extensively developed during the Bengali Renaissance and is one of the most prolific and diverse literary traditions in Asia. The Bengali language movement from 1948 to 1956 demanding that Bengali be an official language of Pakistan fostered Bengali nationalism in East Bengal leading to the emergence of Bangladesh in 1971. In 1999, UNESCO recognised 21 February as International Mother Language Day in recognition of

7225-553: Was the 11th longest bridge in the world when constructed in 1998 and at present is the 6th longest bridge in South Asia . The Jamuna River, which it spans, is one of the three major rivers of Bangladesh, and is fifth largest in the world in discharge volume. The river Jamuna ( Brahmaputra ), along with the lower stretch of the Padma ( Ganges ) divides Bangladesh into nearly two equal halves. Until now all road and rail communication between

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