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ENGINEERING (1330 journals)                  1 2 3 4 5 6 7 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 8)
3D Research     Hybrid Journal   (Followers: 21)
AAPG Bulletin     Hybrid Journal   (Followers: 8)
AASRI Procedia     Open Access   (Followers: 15)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 7)
ACS Nano     Hybrid Journal   (Followers: 321)
Acta Geotechnica     Hybrid Journal   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 3)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 10)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 5)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 9)
Advanced Journal of Graduate Research     Open Access  
Advanced Nonlinear Studies     Hybrid Journal  
Advanced Science     Open Access   (Followers: 6)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 11)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 16)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 6)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 10)
Advances in Engineering Software     Hybrid Journal   (Followers: 29)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 14)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 24)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 29)
Advances in Nonlinear Analysis     Open Access  
Advances in Operations Research     Open Access   (Followers: 12)
Advances in OptoElectronics     Open Access   (Followers: 6)
Advances in Physics Theories and Applications     Open Access   (Followers: 16)
Advances in Polymer Science     Hybrid Journal   (Followers: 45)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Remote Sensing     Open Access   (Followers: 51)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aerobiologia     Hybrid Journal   (Followers: 3)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 6)
AIChE Journal     Hybrid Journal   (Followers: 35)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 1)
Al-Nahrain Journal for Engineering Sciences     Open Access  
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 10)
American Journal of Engineering Education     Open Access   (Followers: 12)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 25)
Anadolu University Journal of Science and Technology A : Applied Sciences and Engineering     Open Access  
Annals of Civil and Environmental Engineering     Open Access  
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Pure and Applied Logic     Open Access   (Followers: 4)
Annals of Regional Science     Hybrid Journal   (Followers: 8)
Annals of Science     Hybrid Journal   (Followers: 7)
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 7)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 20)
Applied Clay Science     Hybrid Journal   (Followers: 6)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 14)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4)
Applied Nanoscience     Open Access   (Followers: 9)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 6)
Applied Sciences     Open Access   (Followers: 4)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 7)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 6)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 9)
Arid Zone Journal of Engineering, Technology and Environment     Open Access   (Followers: 2)
Arkiv för Matematik     Hybrid Journal   (Followers: 2)
ASEE Prism     Full-text available via subscription   (Followers: 3)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 2)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 9)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
AURUM : Mühendislik Sistemleri ve Mimarlık Dergisi = Aurum Journal of Engineering Systems and Architecture     Open Access  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autocracy : Jurnal Otomasi, Kendali, dan Aplikasi Industri     Open Access  
Automotive Experiences     Open Access  
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 8)
Avances en Ciencias e Ingeniería     Open Access  
Avances en Ciencias e Ingenierías     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
Batteries     Open Access   (Followers: 6)
Bautechnik     Hybrid Journal   (Followers: 2)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 28)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Motor Trade Survey     Full-text available via subscription  
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Beyond : Undergraduate Research Journal     Open Access  
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Bilge International Journal of Science and Technology Research     Open Access  
Biofuels Engineering     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 12)
Biomedical Engineering     Hybrid Journal   (Followers: 16)
Biomedical Engineering     Hybrid Journal   (Followers: 2)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 19)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 35)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 8)
Biomedical Science and Engineering     Open Access   (Followers: 4)
Biomicrofluidics     Open Access   (Followers: 5)
BioNanoMaterials     Open Access   (Followers: 2)
Biotechnology Progress     Hybrid Journal   (Followers: 40)
Bitlis Eren University Journal of Science and Technology     Open Access  
Black Sea Journal of Engineering and Science     Open Access  
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 13)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 14)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers Droit, Sciences & Technologies     Open Access  
Calphad     Hybrid Journal   (Followers: 2)
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 32)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 44)
Carbon Resources Conversion     Open Access   (Followers: 1)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 6)
Case Studies in Thermal Engineering     Open Access   (Followers: 6)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 9)
Catalysis Science and Technology     Hybrid Journal   (Followers: 9)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 7)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal  
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 3)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia y Tecnología     Open Access  
Ciencias Holguin     Open Access   (Followers: 3)
CienciaUAT     Open Access   (Followers: 1)
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 13)
City, Culture and Society     Hybrid Journal   (Followers: 23)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Clinical Science     Hybrid Journal   (Followers: 8)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 6)
Coatings     Open Access   (Followers: 4)
Cogent Engineering     Open Access   (Followers: 3)
Cognitive Computation     Hybrid Journal   (Followers: 3)
Color Research & Application     Hybrid Journal   (Followers: 3)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 15)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Communications in Information Science and Management Engineering     Open Access   (Followers: 4)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 29)
Composite Interfaces     Hybrid Journal   (Followers: 7)
Composite Structures     Hybrid Journal   (Followers: 293)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 236)
Composites Part B : Engineering     Hybrid Journal   (Followers: 274)
Composites Science and Technology     Hybrid Journal   (Followers: 206)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
Computation     Open Access   (Followers: 1)
Computational Geosciences     Hybrid Journal   (Followers: 17)

        1 2 3 4 5 6 7 | Last

Journal Cover
Bangladesh Journal of Scientific and Industrial Research
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0304-9809
Published by Bangladesh Journals Online Homepage  [108 journals]
  • Handmade paper from waste banana fibre

    • Authors: KMY Arafat, J Nayeem, AH Quadery, MA Quaiyyum, M Sarwar Jahan
      Pages: 83 - 88
      Abstract: Banana fibre is a natural fibre with high strength, which can be blended easily with cotton fibre or synthetic fibre to produce composite material. In the fiber extraction process, a substantial amount of lignocellulosic wastes are generated, disposal of which creates problem in the adjacent area. In this paper, extracted banana fiber (EBF) and waste banana fiber (WBF) were characterized in terms of chemical and morphological properties to produce handmade paper. WBF was characterized with lower α–cellulose, lignin content and longer fiber length. Pulping of EBF and WBF was carried out with varying active alkali and cooking time at boiling temperature. Pulp yield of WBF was 35.9% after 120 min of cooking with 8% alkali charge. In the unbeaten state the degrees of drainage resistance i.e. SR values were 65 and 71 for EBF and WBF, respectively. The tensile, burst and tear indices of WBF were 23.7 N.m/g, 2.2 kPa.m2/g and 5.0 mN.m2/g, respectively; these were much lower as compared to EBF. These values however, meet the requirement for handmade paper.Bangladesh J. Sci. Ind. Res.53(2), 83-88, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36668
      Issue No: Vol. 53, No. 2 (2018)
  • Qualitative assessment of sediment from River Meghna, Bangladesh

    • Authors: MS Bhuyan, MS Islam
      Pages: 89 - 98
      Abstract: The present study was conducted to find the status of different soil quality variables of the Meghna River during the period from September, 2015 to March, 2016. The values of different soil quality parameters such as silt, sand, clay, bulk density, pH, EC and organic matter fluctuated between 13.33-58.33%, 29.25-88.42%, 4.92-17.42%, 1.43-1.71g/cm3, 6.86-8.06, 43-942.67µs/cm and 0.24-3.1% respectively. The heavy metals were analyzed by Atomic Absorption Spectrophotometer (AAS). The observed order of heavy metals mean concentration in sediments Fe> Pb >Cr > Co > Cd in mg/kg, respectively. Significant differences (p<0.05) was found in the values of soil organic matter of the Meghna river in terms of sites. But the value of silt, sand, clay, bulk density, pH and EC exhibited no significant variation with sites. The concentration of silt, sand, clay, bulk density, pH, EC and organic matter showed no significant variation with seasons (p>0.05). Very strong positive correlation between Cr vs EC (0.965), Cd vs EC (0.962), Cd vs Cr (0.959) and bulk density vs % sand (0.951) was observed at the significance level 0.01. Fe vs % sand (0.944), Cd vs Fe (0.824), Pb vs % O.M (0.823) and bulk density vs Fe (0.822) showed very strong positive correlations at 0.05 level of significance. The concentration of the soil parameters indicate that the river is being polluted and the statistical analysis proved that anthropogenic sources are the main contributor.Bangladesh J. Sci. Ind. Res.53(2), 89-98, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36669
      Issue No: Vol. 53, No. 2 (2018)
  • Optimizing mine production scheduling for multiple destinations of ore

    • Authors: M Jamshidi, M Osanloo
      Pages: 99 - 110
      Abstract: In multi-element deposits, the quality of mining production is impressed by multiple inter-correlated elements and there is an essential task of blending the run-of-mine materials in such a way that the resulting mix meets the required specifications. Generally, blending plans are established based on one destination for products, but blending allows mixing different material and achieving to a wide range of quality. Then, it is possible to consider multiple destinations for mine product. In this paper, a Mixed Integer Programming model is developed for production scheduling of an iron ore mine regarding four different destinations. As the iron ore mines could be considered as direct-shipping ore, in this model, the effect of enrichment unit is investigated by six different scenarios based on different cut-off grades. Performing a sensitivity analysis on cut-off grades would distinguish whether the block should go to enrichment unit before blending or participate in blending plan directly. The result of running the model in the case of four destinations is compared to the case that only one destination is considered. The highest NPV in the case of four destinations is about 25% more than the highest NPV of the case that only one destination is considered.Bangladesh J. Sci. Ind. Res.53(2), 99-110, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36670
      Issue No: Vol. 53, No. 2 (2018)
  • Yttria stabilized tetragonal zirconia ceramics: preparation,
           characterization and applicationspplications

    • Authors: N Sultana, K Bilkis, R Azad, MR Qadir, MA Gafur, MZ Alam
      Pages: 111 - 116
      Abstract: In this study, yttria stabilized tetragonal zirconia (YSTZ) ceramics were prepared and were sintered at different temperatures to find out the optimum sintering temperature for their better tetragonality and mechanical properties for their application as optical ferrule. Vicker’s hardness was performed by micro hardness tester and it was found to increase with the increase of sintering temperature to a maximum value, then it was decreased with higher sintering temperature. Water absorptivity and porosity were also seen to decrease as the densities of the specimens were increased. X-ray diffraction was employed to determine crystal structure of sintered samples. Surface morphology of the sintered samples was examined through field emission scanning electron microscope.Bangladesh J. Sci. Ind. Res.53(2), 111-116, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36671
      Issue No: Vol. 53, No. 2 (2018)
  • Quality of oil used to prepare French fries in Dhaka city

    • Authors: MA Kabir, S Khan, SA Lisa, F Islam
      Pages: 117 - 124
      Abstract: To evaluate the quality of oil used to prepare French fries, fifteen samples of three different categories were collected from Dhaka city. Using solvent extraction method, oils were extracted from the samples. Fatty acid composition, color, peroxide value (PV) and free fatty acids (FFA) of the extracted oils were analyzed. It was found that soybean oil and palm oil were used for frying purpose. Majority of the samples (60%) had peroxide value more than 10 meqO2/kg with highest value of 17.57(±1.39) meqO2/kg. Average color score was found 53.17(±12.73), yellow score was 17.16(±3.79) and red score was 7.2(±3.27). FFA content of the extracted oils were 0.33(±0.29) with the highest value 1.828(±0.029). Fatty acid composition revealed that palmitic acid and oleic acid were the dominant fatty acid with the highest concentration of 43.71±3.39% and 49.54 ±3.6314% respectively. Trans fatty acid was found in 80% of the extracted oils, most frequent trans fat was trans linoleic acid (C18:2) where as trans oleic acid (C18:1) was found in highest concentration 3.7020 ±0.3448. PV and trans fatty acids revealed that the quality of oil used in low cost shops were lower than middle and high cost shops.Bangladesh J. Sci. Ind. Res.53(2), 117-124, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36672
      Issue No: Vol. 53, No. 2 (2018)
  • Chemical composition of wonderful kola (Bucchlozia coriacea) and
           breadfruit (Artocarpus altilis) seeds grown in south–south, Nigeria

    • Authors: MO Aremu, DB Passali, H Ibrahim, RO Akinyeye
      Pages: 125 - 132
      Abstract: The proximate and amino acid compositions of Artocarpus altilis and Bucchholzia coriacea were investigated using standard analytical techniques. The respective proximate composition (%) for the Artocarpus altilis and Bucchholzia coriacea samples were: Moisture (5.91 and 5.67); ash (4.39 and 5.13); crude fat (4.42 and 2.76); crude protein (12.27 and 14.78); crude fibre (7.10 and 6.27); carbohydrate (65.91 and 65.39). The calculated fatty acids and metabolizable energy for the Artocarpus altilis and Bucchholzia coriacea samples were 3.54 and 2.21 %; 1492.60 and 1465.01 kJ/100 g, respectively. The most abundant minerals in Artocarpus altilis and Bucchholzia were potassium (658.42 and 369.64 mg/100 g) and phosphorus (382.55 and 261.38 mg/100 g), respectively. The amino acid profile revealed that Artocarpus altilis and Bucchholzia coriacea samples contained nutritionally useful quantities of most of the essential amino acids. The total essential amino acids (TEAA) (with His) were 31.14 and 34.40 g/100 g crude protein for the Artocarpus altilis and Bucchholzia coriacea samples, respectively. The first limiting amino acid was Met + Cys (TSAA) for all the samples and calculated isoeletric points (ρl) were 3.52 and 4.05 for Artocarpus altilis and Bucchholzia coriacea, respectively.Bangladesh J. Sci. Ind. Res.53(2), 125-132, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36673
      Issue No: Vol. 53, No. 2 (2018)
  • In vitro regeneration protocol of Rauvolfia serpentina L.

    • Authors: S Khan, TA Banu, S Akter, B Goswami, M Islam, U Hani, A Habib
      Pages: 133 - 138
      Abstract: An efficient in vitro regeneration system was developed for Rauvolfia serpentina L. through direct and indirect organogenesis from nodal and leaf explants. Among the different growth regulators, MS medium supplemented with 2.0 mg/l BAP, 0.5mg/l IAA and 0.02mg/l NAA found best for the multiple shoot formation from nodal segments. In this combination 98% explants produced multiple shoots and the average number of shoots per explants is 13∙4. The frequency of callus induction and multiple shoot induction from leaves was highest 88% in MS medium supplemented with 2.0 mg/l BAP, where mean number of shoots/explants was 12.5. The highest frequency of root induction (80%) and mean number of roots/plantlets (10) were obtained on half strength of MS medium containing 0.2 mg/l IBA. The rooted plantlets were transferred for hardening following acclimatization and finally were successfully established in the field.Bangladesh J. Sci. Ind. Res.53(2), 133-138, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36674
      Issue No: Vol. 53, No. 2 (2018)
  • Efficacy of biomaterial based photocatalytic composite in treating dye

    • Authors: MM Rahman, S Ahmed, Z Yeasmin, SM Masum
      Pages: 139 - 144
      Abstract: A biomaterial based photocatalytic composite, hydroxyapatite–TiO2–ZnO (HAp-TiO2–ZnO) has been developed following a solid-state combustion method while its efficacy was investigated through the photodegradation of (i) aquatic solution of synthetic dye, methylene blue (MB); and (ii) real textile dye effluent. The degradation profile was explored considering several factors, e.g.: (i) initial dye concentration; (ii) illumination span; (iii) dose of photocatalyst; and (iv) pH of targeted dye solution. The photodegradation was performed in both indoor and outdoor environment using halogen lamp (500 W) and sunlight respectively. Observed photodegradation revealed that though the photocatalytic composite effectively decomposed methylene blue at various extents under different experimental conditions but a dose of 0.5g photocatalyst/100 mL substrate solution (10×10-6 M methylene blue solution at pH 4) expedited optimal degradation (~ 97%) at 2 hours’ time interval. On the other hand though it was possible to degrade the textile effluent to some extent by illuminating through halogen lamp and sunlight but the success rate did not exceed 50%.Bangladesh J. Sci. Ind. Res.53(2), 139-144, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36675
      Issue No: Vol. 53, No. 2 (2018)
  • Geochemistry of terrigenous sediments in surface water from ore and
           okitipupa southwest, Nigeria

    • Authors: TF Ediagbonya, H Ayedun
      Pages: 145 - 154
      Abstract: Elements pollution in water bodies and sediment have becoming increasingly a catholic focus. The knowledge of hydrogeochemical processes affecting water quality is necessary in order to assess the potential changes that occur and identify possible abatement strategy. Fifteen elements were analyzed in the sediment using AMPTEX (R), X-ray fluorescence method. The highest average concentration was recorded for Fe with an average value of 19650 ppm and the lowest average concentration was recorded for Cu with an average value of 10.86 ppm. The average concentration values recorded in this study fell with the purview of the available regulatory limits. The highest enrichment value and geo-accumulation value was recorded for Se and the highest pollution index was recorded for Fe, Mn, K, and Ca correlated well with Ni. The Enrichment values when Titanium (Ti) was used as reference element Se > Zr > As > Zn > V > Ni > Fe > Mn > Cu ≥ Sr > Cr > Rb > K >Ca. For Iron Se > Zr > As > Zn > V > Ni > Ti > Mn > Cu ≥ Sr > Cr > Rb > K >Ca. For Manganese (Mn) was Se > Zr > As > Zn > V > Ni > Ti > Fe > Cu ≥ Sr > Cr > Rb > K > Ca. For Copper Se > Zr > As > Zn > V > Ni > Ti > Fe > Mn > Sr > Cr > Rb > K > Ca.Bangladesh J. Sci. Ind. Res.53(2), 145-154, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36676
      Issue No: Vol. 53, No. 2 (2018)
  • Parameters associated with growth factors of five fish species in the
           Atrai River, Dinajpur, Bangladesh

    • Authors: MR Islam, MG Azom
      Pages: 155 - 160
      Abstract: For evaluation of Fulton’s condition factor (CFf), relative body weight (BWr) and form (a3.0) factor affecting growth, 5 fishes (Aspidoparia jaya, Gagata cenia, G. youssoufi, Salmophasia bacaila and S. phulo) were collected from the Atari River in Dinajpur district of Bangladesh. Significant differences (p < 0.05) were recorded among the values of CFf (0.47-1.56) but not for BWr (79.60- 128.39). Based on CFf values, analysis of similarities (ANOSIM, p < 0.01) revealed that maximum distances (R = 0.9946) were found between G. youssoufi and S. bacaila while lowest (R = 0.2175) between G. cenia and S. phulo. Using two-dimensional nMDS scaling of CFf and BWr, G. youssoufi showed good health condition (CFf = 1.22±0.01; BWr = 100.63±0.79) and were separated (stress = 0.0003) from other fishes. Lowest a3.0 value was noted for S. bacaila (0.004) and highest for G. youssoufi (0.012). Therefore, G. youssoufi showed healthier and former body with more adaptability in this river than those of others. These are the first records for proper management of above mentioned fish species and future research in the near future.Bangladesh J. Sci. Ind. Res.53(2), 155-160, 2018
      PubDate: 2018-05-27
      DOI: 10.3329/bjsir.v53i2.36677
      Issue No: Vol. 53, No. 2 (2018)
School of Mathematical and Computer Sciences
Heriot-Watt University
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