Thursday, March 18, 2021

What is master health check up ?

 A master health checkup is a package of clinical tests conducted to screen and assess overall health.

.   conditions. It can be referred to as an annual health checkup test. This routine checkup includes a number of physical tests which help not only to assess the health of organs but also to detect hidden abnormalities or symptoms of diseases if there is any so that preventive measures can be taken in or on time.

With growing age, the body changes itself in terms of dietary requirement. It is necessary to understand what your body requires and what not, how active the body should be, what the body needs the most, etc. The body weight fluctuates with growing age, which impacts the vital organs and other health conditions. A master health checkup is the right key to know your body better. Some of the common tests on a master health checkup list are:

  • Hemoglobin test
  • Total cholesterol test
  • Urine analysis
  • Stool test
  • ECG
  • X-ray chest
  • Dental checkup
  • Vision and hearing
  • BMI analysis
  • Diabetes
  • Blood pressure
  • Thyroid test
  • HIV test
  • Dietician consultation
  • Serum calcium test
  • Ultrasound whole abdomen
  • Liver function test
  • Pap Smear (for women)
  • Consultation with physicians

Health CheckUp for Men by Age

Health checkups and staying healthy should be a part of your regular routine. This will not only help you to stay healthy but it will also help you to know your potential problems quite early in your life.


By Iftekhar chowdhury ,Freclancer ,social worker ,former senior scientific officer , B.A.E.C ,past president APEX CLUB INTERNATION ,

Monday, March 8, 2021

Processing technologies of mineral sand production based on their physical characteristics at pilot plant ,Cox's Bazar By lftekhar uddin chowdhury,BSMEC, B,A.E.C,Cox,sBazar March 08, 2021

 Dry Section

Processing technologies of mineral sand production based on their physical characteristics at pilot plant ,Cox's Bazar By lftekhar uddin chowdhury,BSMEC, B,A.E.C,Cox,sBazar


Dry operation process is applicable to drying ,screening ,air classification for

magnetic, non magnetic ,non conductor, Conductor for quality product. Category

equipment is used for this purpose are, lime, w.h.i.m r m s ,crossbelt,for separator

Which is mainly dealing with magnetic properties. High tension separator,

electrostatics, Esp. separator are used for conductor And non conductor properties.

Table concentrate from wet plant as primary non conductor heavies is then feed in

the rotary drum drier up to 90-100;c temperatures. the dried up minerals thus

obtained are lifted to high tension roll separator by bucket elevators H.T. S operate

at Around 35000- 4000dc voltage which to applied to separate conductor from non

conductor fraction. Those conductor fraction is again passed through induced

magnetic separator and diverted to cross belt and bucket elevator to Separate

magnetic conductor and non magnetic fraction high intensity magnetic is run at 0,5 —

1 amp and 200-250 rpm for it As result ilmentite nearly 95-97%grade may be

available non magnetic fraction which is contains rutile as a non conductor Is again

diverted through the same process in H.I magnetic separation which is run at 2.5-

amp and 40-60 rpm to get zircon As a non conductor ,non magnetic. the product is

then passed through shaking table via hydrocylone. Table consecrate Gives zircon

production . again air classification for up gradation if need . garnet and monazite

which is obtained in magnetic and non magnetic is again subjected to Kasson

vibroscreen to upgrade of garnet over size 88-85% under trace monazite Physical

characteristics of mineral sand production in the plant.

Mineral Specific Hardness Magnetic Electrical I Grain size !

gravity properties _ properties range

Zircon 4.69 " 7-7.5 Non - Non 0.25-0.o63

_ Magnetic conductor :AI Vlx

Rutile 4.20 5.55 Non Conductor do

__ magnetic

Ilmenite 4.70 5-6 Low Good do

magnetic conductor

Garnet 3.8-4 6-75 Moderate Non Do

magnetic conductor —

Monazite 4.60 5-5.5 Weakly Non 0.25+0063

magnetic conductor

_._

Kyanite 3.56 4-5.5 Moderate Non do

mag conductor

Quantity of mineral sand deposits located in the costal belt of Bangladesh is reported to be

approximately 4.4 million ton heavy mineral with average 18% of heavy minerals .and it is

suitable for mining either -by wet dredging or dry using earth moving equipment , excavate

and transport the sands .but it has no environmental affect. Australia, sri lanka, India, south

Africa, u.s.a, Malaysia. brazil, Bangladesh are major producer of this minerals . and its

consumed many countries of the world ,including Bangladesh .so it is observed that% grade

of individual mineral achieved in the pilot plant separation varies depending on the deposit

of raw sands .however. pilot plant processing for individual separation has attained

remarkable progress some of mineral production such as magnetite.ilmenite.have been

already reached in commercial grade . the grade of zircon and garnet, is nearly commercial.

Pilot plant small scale production is may be Capac able of demand in our country, if

consumer is Surety of constant ly intending .paper mill, Bangladesh oxygen, pigment

industries and many ceramic industries. Bangladesh insulator and sanitary ware factory,

paper mill, rubber industries. Bangladesh welding electrodes Rahim steel mills, and a few

chemical factory .t.v face plate. Industries, steel mills ,are major users of this mineral of our

countries, titanium, and zirconium Bearing sands and other valuable mineral recovering is

very essential of the country.so that Exploitation initiatives should be, taken for setting

Processing technologies of mineral sand production based on their physical characteristics at pilot plant ,Cox's Bazar By lftekhar uddin chowdhury,BSMEC, B,A.E.C,Cox,sBazar

 Processing technologies of mineral sand production based on their physical

characteristics at pilot plant ,Cox's Bazar

By Processing technologies of mineral sand production based on their physical

characteristics at pilot plant ,Cox's Bazar

By lftekhar uddin chowdhury,BSMEC, B,A.E.C,Cox,sBazar uddin chowdhury,BSMEC, B,A.E.C,Exploitation of natural resource is essential for sustainable development of the country. N natural resource is wealth and free gift of the country .we have many natural resources We are constantly remain on mineral resource. We are depend on variety of minerals for Our industries at present through out the country as well as world now world rapidly Growing population and environmental degradation arouse concern about the future Sustainability of the society, so we have been undertaken active involvement for accurate information on the significance of mineral resources . advanced modern method Of mineral processing ,operation, and marketing . mineral sand deposits along the coastal Belt of Bangladesh constitute a potential mineral resource of the country .the beach sand mineral contains rutile, which is approximately 95% titanium dioxide and is extensively Used in pigment industries , papers mill rubbers ,cosmetics and manufacture of welding Electrode fluxes manufacture of titanium metal, and aircraft frames, jet engines. Many other purposes. Ilmenite, is also a sources of titanium dioxide . it is the major deposit Of our country .but due to low grade tio2 it is not suitable for up gradation in to synthetic rutile. Ilmenite is also applied in sand blasting , x-ray shielding purpose and titanium stag ,pig iron .Zircon ,whose chemical composition is zirconium silicate, which is extensively used in ceramic industries, foundries refractory and steel mill, electronic application and Mfg of zirconium metal. ,zircon flour is particularly used in higher temperature application and is also applied in t.v plates for protection from harmful xrays garnet, is used as abrasive Mgf of emery paper and cloth. Wheel grinding stone.Kyanite as a source aluminum is used many purpose Magnetite principal source of iron is used in the manufacture of ferrite rods and radiation shielding blocks in the x-ray machine and used in black and red oxide Monazite as a source rare earth which is presences thorium is used for nuclear technology The paper deals with basic process technology of mineral sands recovering in pilot plant from single deposit assemblages including mixture of zircon, rutile garnet, Ilmenitite magnetite Monazite kynaite The process is not so easy it is a vast and complex subject particularly grain size Distribution ,vary for each individual mineral .variation its specific gravity, colors and chemical Composition and variation in magnetic and electrical properties & many other factors. The pilot plant was commissioned 1975 under the administrative control of B.A.E.C. it was Originally designed with the intention of flow sheet development for batch testing and preparing A preliminary feasibility study of mineral sand quality production and ultimately to build up of a Commercial production to exploit of those mineral resources. Basically the entire separation of heavy mineral s in the plant is divided into two categories 1) wet section, Dry section 2) dry section Wet section- this categories of separation consist vast majority of heavy mineral collected after. extraction from light sand on the basis of flotation and wet gravity separation. This gravitational separation is accomplished by wet spiral, gravity and shaking table .depending on grain size specific gravity of sand ,most of the light mineral are rejected with the help of wet slurry by the spiral mechanism . in this regards. 10-35% of heavy mineral may be available. The H.M that is output from the wet spiral is then cleaned in the attritiner in attritiner grain surface is mostly cleaned by hitting and rubbing against other to free the surface coating . the clean concentrate heavy mineral is then passed through low intensity magnetic separation to separate mainly magnetite for magnetite production .the non magnetic is then processed in shaking table the shaking action of the motor and pressure of the Cox,sBazar next pages.2

Friday, February 19, 2021

Story of beach sands minerals alone the bay bengal Bangldesh. Iftekhar chowdhury

 Iftekhar chowdhury.







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1965 mv‡j fvwi LwbR m¤ú‡`i e¨vcv‡i ZrKvjxb cvwK¯Ívb AvYweK kw³ Kwgkb AvMÖn cÖKvk K‡i|

1967 mv‡j `yBRb A‡÷ªjxq we‡kl‡Ái mnvqZvq †`‡ki `wÿY-c~e DcK~jxq A‡ji evwj‡Z fvwi LwbR m¤ú` AbymÜvb, Rwic,evwji bgybv we‡kølY , Lwb‡Ri cwigvY wbav©iY Ges mswkøó Ab¨vb¨ wel‡qi Ici M‡elYv KvR ïiæ Kiv n‡qwQj|

1967 mv‡j GB M‡elYv Kvh©µg cwiPvjbvi Rb¨ cvwK¯Ívb AvYweK kw³ Kwgkb ÒWvB‡i±i Ae wbDwK¬qvi GÛ wgbv‡ijm (wW,Gb,Gg)Ó bv‡g GKwU cÖwZôvb MVb K‡i hvi cÖavb Kvhv©jq  cvwK¯Ív‡bi jv‡nv‡i Aew¯’Z wQj Ges GKwU AvÂwjK Awdm PÆMÖv‡g ¯’vwcZ Kiv nqwQj|

1968 mv‡j PÆMÖvg Awdm n‡Z avivevwnKfv‡e fvwi LwbR evwj AbymÜvb I Rwi‡ci KvR ïiæ Kiv nq|

1968 mv‡jB cÖK‡íi cÖ_g cÖKíwU ev¯Íevqb Kiv n‡qwQj| GB mg‡qi g‡a¨ evsjv‡`‡ki 550 wKtwgt `xN© DcK~jxq A‡j fvwi LwbR evwj AbymÜvb I Rwic KvR m¤úbœ Kiv n‡qwQj Ges †mLv‡b †gvU 17wU fvix I g~j¨evb LwbR evwji ¯Íy‡ci mÜvb cvIqv wM‡qwQj|

GB ¯Íc¸‡jv‡Z AbymÜvb I Rwi‡c †h mKj g~j¨evb LwbR m¤ú` cvIqv wM‡qwQj †m¸‡jvi weeiY wb‡¤œ ‡ck n‡jv t-

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1971 mv‡j evsjv‡`‡ki ¯^vaxbZv hy‡×i mgq PÆMÖvg AwdmwUi Kvh©µg mvgwqK eÜ ivLv n‡qwQj| ‡`k ¯^vaxb nIqvi ci PÆMÖvg A‡ji AwdmwUi bvg cwieZ©b K‡iÒwbDwK¬qvi wgbv‡ij †m›Uvi (Gb,Gg,wm)ÓbvgKiY Kiv n‡qwQj Ges LwbR evwj AbymÜv‡bi Kvh©µgwU AviI kw³kvjx iæ‡c cwiPvjbv Kiv nq| A‡÷ªjxq we‡klÁ KZ…©K Kv‡Ri AMÖMwZ I djvdj welqK chv©‡jvPbv Kiv nq Ges m‡šÍvlRbK e‡j cÖgvwYZ nq|

            1975 mv‡j A‡÷ªjxq we‡klÁ‡`i mycvwikµ‡g A‡÷ªjxqv miKv‡ii A_v©byK~‡j LwbR evwj n‡Z g~j¨evb Dcv`vbmg~n c„_wKKi‡Yi mwVK c×wZ D™¢veb I Dcv`vb¸‡jvi cwigvYMZ I ¸YMZ gvb wbY©‡qi Rb¨ K·evRv‡ii GKwU cvBjU cøv›U ¯’vcb I Pvjy Kiv nq|

1976 mv‡ji gvP© gvm ch©šÍ A‡÷ªjxq we‡klÁ‡`i ZË¡veav‡b fvix LwbR evwj AbymÜvb , Rwic I g~j¨vq‡bi cvkvcvwk cvBjU cøv‡›Ui M‡elYvi KvR Pj‡Z _v‡K| †mB mv‡_ we‡`‡ki M‡elYvMv‡iI Avbylvw½K cixÿv-wbixÿv P‡j| Gme Kvh©µ‡gi g~L¨ D‡Ïk¨ wQj LwbR evwj †_‡K g~j¨evb Dcv`vb¸‡jv c„_KxKi‡Yi mwVK Dcvq (‡d¬vkxU) D™¢veY Kiv hv †_‡K fwel¨‡Z evwYwR¨K cøv›U ¯’vc‡bi w`K wb‡`©kbv cvIqv †h‡Z cv‡i|

 

            1977 mv‡j cvBjU cøv‡›U cÖK‡íi wØZxq cÖK‡íi KvR Avi¤¢ Kiv n‡qwQj | GLv‡b D‡jøL¨ †h,Ò A‡÷ªjxq LwbR Dbœqb M‡elYvMvi (Gg‡Wj)Óevsjv‡`‡ki LwbRevwj †_‡K g~j¨evb LwbR m¤ú` evwYwR¨KwfwˇZ AvniY, Drcv`b I e¨env‡ii j‡ÿ¨ GKwU cÖvK-m¤¢ve¨Zv mgxÿv cwiPvjbv K‡i| Zv‡`i IB mgxÿv g~jZt g‡nkLvjx Øx‡c H mgqKvj ch©šÍ Avwe¯‹…Z fvwi LwbR evwji gRy` Ges †m¸‡jv D‡Ëvj‡bi KvwiMix I A_©‰bwZK m¤¢vebvi g‡a¨B mxgve× wQj|

 

1977 mv‡j Af¨šÍixY I AvšÍ©RvwZK evRv‡iÒGg‡WjÓhLb m¤¢ve¨Zv mgxÿv cwiPvjbv K‡i ZLb iæUvB‡ji AvšÍ©RvwZK evRvi `i wQj cÖwZ Ub 250 A‡÷ªjxq Wjvi Gd I we , wRiK‡Yi `i wQj Ub cÖwZ 190A‡÷ªjxqvb Wjvi, ‡gbvBU(54% Ti02) 70-80 A‡÷ªwjqvb Wjvi, g¨vM‡bUvBU 40 A‡÷ªwjqvb Wjvi Ges †gvbvRvBU 900A‡÷ªjxq Wjvi Gd I we, wjDK‡·b evRvi `i wQj 450-480 A‡÷ªwjqvb Wjvi|

 

1977 mvj ch©šÍ g‡nkLvjx Øx‡c Avwe¯‹…Z fvwi LwbR gRy‡`i †gvU cwigvY wQj 4 jÿ Ub Ges H mgq fvwi LwbR evwji AvšÍ©RvwZK Pvwn`v I evRvi `i wQj LyeB g›`v| AwaKš‘, IB mgxÿvq gvÎ 3/4 wU Lwb‡Ri (wRiKY,iæUvBj, wjDK‡·b I wRiKY-KvqvbvB‡Ui wgkÖY) c„_wKKi‡Yi welq we‡ePbv Kiv n‡qwQj Ges A_©‰bwZK we‡køl‡Y cÖK‡íi hveZxq e¨q IB 3/4 wU Lwb‡Ri g‡a¨ wefvRb K‡i †`Lv‡bv n‡qwQj| Z_vwcIÒGg‡WjÓZv‡`i cÖwZ‡e`‡b gZ cÖKvk K‡i †h, g‡nkLvjx Øx‡c IB mg‡q GKwU evwYwR¨K cøv›U ¯’vcb KvwiMix w`K †_‡K D¾¡j m¤¢vebvgq Ges A_©‰bwZKfv‡e cÖKíwU Ò‡eªK B‡fbÓn‡e| A_©‰bwZK w`K †_‡K cÖKíwU Ò‡eªK B‡fbÓ nevi †h KviY D‡jøL Kiv nq Zv n‡jv  H mgq ch©šÍ g‡nkLvjx Øx‡c Avwe¯‹…Z LwbR evwji gRy‡`i cwigvY cÖ‡qvR‡bi Zzjbvq Kg Ges wek¦ evRv‡i Lwb‡Ri Pvwn`v I g~‡j¨i wb¤œMwZ| G g‡Wj evwYwR¨KwfwˇZ Avni‡Yi D‡`¨vM MÖn‡bi c~‡e© g‡nkLvjx Øx‡c Av‡iv AbymÜvb Pvjv‡bvi Dc‡`k †`q Ges †mB mv‡_ weï× wRiKY I iæUvBj Drcv`‡bi Rb¨ K·evRvi¯’ LwbR evwj AvniY †K‡›`ªi cvBjU cøv‡›Ui gvb Dbœq‡biI mycvwik Kiv n‡qwQj| IB mg‡q g‡nkLvjx Øx‡c AbymÜv‡bi KvR Av‡iv kw³kvjx AvKv‡i ïiæ  Kiv  n‡qwQj |

 

1980 mv‡j †mLv‡b AbymÜvb Kvh©µg †kl Kiv nq hvi djkÖæwZ‡Z AviI K‡qKwU LwbR evwji ¯Íc Avwe¯‹…Z nq| d‡j IB Øx‡c fvwi LwbR evwji gRy` e„w× †c‡q cÖvq 8 jÿ Ub n‡qwQj Ges GB evwj †_‡K 8wU LwbR (wRiKY, iæUvBj , wjDK‡·b, KvqvbvBU, Bj‡gvbvBU, Mvi‡bU, g¨vM‡bUvBU Ges †gvbvRvBU) AvniY I Drcv`b Kiv m¤¢e e‡j Z_¨ cÖKvk Kiv n‡qwQj|

 

1983 mv‡j BD.Gb.wW.wc Ges Rvcvb miKvi evsjv‡`‡ki LwbR evwj AvniY I Drcv`‡bi e¨vcv‡i GKwU we¯ÍvwiZ m¤¢ve¨Zv mgxÿv Pvjv‡bvi Rb¨ evsjv‡`k miKv‡ii mv‡_ †hŠ_fv‡e KvR Kivi AvMÖn cÖKvk K‡i|

 

1985 mv‡j AvMó gv‡m GB j‡ÿ¨ Rvcvb miKv‡ii Avš©ÍRvwZK mn‡hvMxZv ms¯’v (RvBKv) I †gUvj gvBwbs G‡RÝx Ae Rvcvb (Gg.Gg. G.‡R) Ges evsjv‡`k cigvYy kw³ Kwgk‡bi g‡a¨ GKwU Pzw³ ¯^vÿwiZ n‡qwQj| GB Pzw³‡Z LwbR evwj AvniY †K‡›`ªi cvBjU cøv‡›Ui we.Gg.Avi.B Gi e¨e¯’v AšÍfz©³ wQj| wKšÍ D³ mgxÿv evsjv‡`k miKvi KZ…©K e¨w³ gvwjKvbvaxb cÖwZôv‡bi mv‡_ †hŠ_ D‡`¨v‡M cwiPvjbv Kivi wm×všÍ †`qvi cwi†cÖwÿ‡Z Rvcvb miKv‡ii Avš©ÍRvwZK mn‡hvMxZv ms¯’v (RvBKv)-Aby`v‡bi $275,0000(`yBkZ cPvËi jÿ BDGmWjvi)ˆe‡`wkK gy`ªvmn me©‡gvU-

$285,0000(`yBkZ cPuvwk jÿ BDGm Wjvi) cÖ`v‡b AcivMZv cÖKvk K‡i| d‡j Pzw³wU evwZj n‡q hvq|

 

1987 mv‡ji A‡±vei gv‡m miKvi KZ…©K wecyj m¤¢vebvgqÒLwbR evwj AvniY †K›`ªÓ cÖKíwUi Kvh©µg eÜ K‡i †`qv n‡qwQj  Ges Gi ¯’vei-A¯’vei mKj m¤ú` cÖ_‡g wewµ Kivi cwiKíbv MÖnY Kiv n‡qwQj I cieZ©©x‡Z ÒMYc~Z© Awa`ßiÓ-Gi wbKU n¯ÍvšÍi Kivi wm×všÍ M„wnZ n‡qwQj| hv †`‡ki Dbœqb I AMÖMwZi c_- ¯^v‡_©i Rb¨ AZ¨šÍ ÿwZKi GKwU wm×všÍ wQj|

 

            1991 mv‡j eZ©gvb MYZvwš¿K miKvi ÿgZv MÖn‡bi ci LwbR evwj AvniY †K‡›`ªi Kvh©µg c~e©eZx miKvi KZ…©K eÜ K‡i †`qvi wm×všÍ cybt we‡ePbvi Rb¨ Av‡e`b Kiv nq|

 

1991 mv‡ji †m‡Þ¤^i gv‡m eZ©gvb MYZvwš¿K miKvi c~e©eZ©x miKv‡ii wm×všÍ evwZj KiZt †K›`ªwUi Kvh©µg miKvix Lv‡Zi wbqš¿Yvax‡b cybivq ïiæ Kivi wm×všÍ  MÖnY K‡iY|

 

1994-1998 mvj †_‡KÒGg‡WjÓ- Gi Z_¨ †gvZv‡eK evsjv‡`k miKvi Pvi †KvwU UvKv e¨‡q D³ cvBjU cøv›U ‡K DbœZ Kivi j‡ÿ¨ we.Gg. Avi. B. d‡j DbœZ A‡bK hš^ªcvwZi ms‡hvRb Kiv nq| we.Gg. Avi. B. gva¨‡g DbœZ cÖhyw³i Øviv fvwi LwbR evwji c„w_KxKi‡Yi KvRwU m¤úyb© mgvß Kiv nq|

 

             evsjv‡`‡ki †ek K‡qKwU wk‡í wRiKY I iæUvB‡ji fvj Pvwn`v i‡q‡Q| evsjv‡`k Aw·‡Rb wjt, evsjv‡`k I‡qwìs B‡jK‡UªvWm wjt, evsjv‡`k Bbmy¨‡jUi GÛ m¨vwbUvix Iq¨vi d¨v±ix, KY©dzjx †ccvi wgjm, PÆMÖvg óxj wgj Ges †`‡ki wewfbœ is Ges wmivwgKm wk‡íi KvPvugvj wn‡m‡e iæUvBj Ges wRiKY e¨eüZ nq Ges G¸‡jv D‡jøL‡hvM¨ cwigvY ˆe‡`wkK gy`ªv e¨‡q we‡`k †_‡K cÖwZ eQi Avg`vbx Ki‡Z nq| GQvov Mvjd«v nvexe , B¯úvnvbx gvkv©j , wgwkb-Uzjm d¨v±ix cÖf„wZ cÖwZôv‡b dvDÛªx I Kvwós‡qi Kv‡R wRiKY e¨eüZ nq|

 

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