Synthesis, Characterization and Antimicrobial Activities of Schiff Base Complexes of Co (II) and Cu (II) Derived from Salicyldehyde and Diphenylamine
Page Numbers : 6-10
DOI : 10.36348/sijcms.2022.v05i01.002
This paper reports antibacterial and antifungal activities of Schiff base and that’s of its metal (II) complexes (Co, Cu) derived from salicyldehyde and diphenylamine. The Schiff base and its metal (II) complexes were characterized using different analytical techniques like FTIR, melting point, solubility, and molar conductance, The Schiff base and its respective metals complexes were colored. The result from IR analysis revealed bands at 1614cm-1 indicating the formation of azomethine (C=N) confirming the formation of Schiff base. The band at 664cm-1indicate the formation of complex which is assign toV(M-N) supporting coordination of Schiff base to respective metals. The solubility test result showed that both the Schiff base and complexes are soluble in most organic solvent and insoluble in water. Both the schiff base and complexes revealed sharp melting point and decomposition temperature. The molar conductance data of the complexes in Dimethylsulphoxide(DMSO) show low value of 9 and 10 Ohm-1cm2 mol-1) indicating the complexes are non-electrolytes. The entire compound was tested for their antibacterial and antifungal activities. The results indicated that the growth of the tested organism was inhibited by the compounds.
Jan. 12, 2022
The Relation of the Tensile & Shear Stress of Schmid & their Efficient Fracture Stress with Twins and Dislocations in TiAl Alloys
Run Xu, Boyong Hur, Sugun Lim, Younwook Kim
Page Numbers : 1-5
DOI : 10.36348/sijcms.2022.v05i01.001
It is reasonable within the range from 45 ° to 90 °. It shows that it is maximum of the efficient resolved tensile and shear stress at 90°. The twin is the most active around 45 ° roughly the most active range is 22.5 to 67.5°. Therefore we believe that the possibility of twin is relatively high. The effective stress according to s2eff=ss2+tc2-2sstc cos (90°+ϕ) and the adapted effective stress s2eff=ss2+tc2 likely excludes a little deviation with 0~4MPa in Ti2AlNb. The deviation is largest with 4MPa in ϕ of 42.5° in Ti2AlNb. The range rate is 0.5%. According to efficient stress & twins and dislocation happen at λ=45°and 90°.
Original Research Article
Dec. 30, 2021
Synthesis and Pharmacological Evaluation of Molybdenum Complex with Biologically active Ligand
Page Numbers : 326-329
DOI : 10.36348/sijcms.2021.v04i11.008
Molybdenum Complex with organic ligand is compound of great theoretical and practical interest especially valuable as model systems for biochemical process. Moreover, dithiocarbamate ligand is known to form stable Complex with many Transition metals. Interest in Complex arises because of its versatile structure of Biological activity. The Mo (V) Complex was optimized and a description of the structural parameters is given. Finally the complex was examined as potential antimicrobial agents.
Original Research Article
Dec. 29, 2021
Effect of Acetic Acid and Alpha-Amylase Modifications on Some Physichochemical Properties of Xanthosoma sagittifolium (Cocoyam) Starch
Sule, M, Musa A. D, Egwim, E. C, Ossamulu, I. F
Page Numbers : 318-325
DOI : 10.36348/sijcms.2021.v04i11.007
This study was aimed at evaluating the effect of acetic acid and alpha-amylase modifications on the physicochemical properties of Xanthosoma sagittifolium (cocoyam) starch. Standard procedures were employed in determining the physicochemical features of the starch. The yield of starch from cocoyam root was 22.30 %. The result showed that of the native and modified starches did not show significant difference in the moisture content, and the swelling capacity of the native and modified starches. The amylose content showed that acetic acid modified starch had significantly (p<0.05) higher amylose content (10.07±0.20 %) than the native and enzyme modified starches. The solubility of the starch was shown to be significantly (p<0.05) higher in the native cocoyam starch (3.75 g/g) than in either acetic acid or enzyme modified starch (3.30±0.02 and 3.04±0.01 g/g) respectively. The gelatinization temperature of the starches was found to be significantly (p<0.05) higher in the modified starch (82.51±0.08 and 81.15±0.05oC) than native starch. The water absorption capacity was significantly higher in native starch (6.65±0.12) than in the modified starches (2.14±0.07 and 2.03±0.04 for acetic acid and enzyme modified starches respectively). It is therefore noteworthy that modification of cocoyam starch may present it a worthy resource material for industrial application as such popularising its utility.
Dec. 19, 2021
Discussions to African Development of Technology and Innovation in its Industry
Run Xu, Sugun Lim
Page Numbers : 314-317
DOI : 10.36348/sijcms.2021.v04i11.006
The future trends from high technology to automobile components industry are analyzed in detail. Put forward to the implementation of their products and put their possibilities into practice. Specific response measures are pointed out in two respects, indicating that they are urgently needed to run the factory products. In additional the products shall be established in Africa in order to promote new and innovation. It can be acquired through train in and between factories besides the school. Due to its low labour and undeveloped industry many opportunity will await us to mine its countless chance and profit. Like in Africa they can loan with urgent and above two because of their development demand. So if endeavor is imported many new project will be found by us together. Let us continue to pay attention to Africa for better benefit and common development. In this paper the development of technology and innovation in Africa has been discussed trying to find their intrinsic relationship from respects of the urgent, high technology & automobile in bank loan. The privilege to these field capital will benefit their development in advance and rapidly which can create many innovations in the course of making goods. We should exploit more wide field for high technological product to give convenience to make them to proceed more innovation technology for Africa and world human being.
Dec. 17, 2021
Discussions to Development of Artificial Intelligence Industry in Africa IV
Run Xu, Sugun Lim, Younwook Kim
Page Numbers : 310-313
DOI : 10.36348/sijcms.2021.v04i11.005
The future trends from high technology to artificial intelligence industry are analyzed in detail. Put forward to the implementation of high technology and artificial intelligence products and put their possibilities into practice. Specific response measures are pointed out in two respects, indicating that they are urgently needed to run the factory products. In additional the artificial intelligence products shall be established in Africa in order to promote new and innovative energy. Due to its low labour and undeveloped industry many opportunity will await us to mine its countless chance and profit. Like south eastern Africa they can live together with better status because of their development. So if endeavor is imported many new project will be found by us together. Let us continue to pay attention to Africa for better benefit and common development. Scheme design should includes cost control which may be evaluated by relative institution. Once it passes by the construction will proceed relative plan to complete the building work. Only it fits to local status can it be done preparation work. For the purpose of the common development we should enhance the technological communication to construct the beautiful world with high artificial intelligence industries in African continent.
Original Research Article
Dec. 14, 2021
Original Research Article Physicochemical Properties of Biodiesel from Congolese Non-Edible Oleaginous Plant Allanblackia floribunda Oliv
A. Mulula, Thierno N.Manoka
Page Numbers : 304-309
DOI : 10.36348/sijcms.2021.v04i11.004
Vegetable oil-based fuels are promising alternative fuels for diesel and light fuel engines because of their environmental and economic strategic advantages. In this study, we prepared the biodiesel from Congolese underutilized, nonedible Oleaginous Plant A. floribunda Oliv, and we determined its physicochemical properties according to the international standards for biodiesels and petro-diesels. A. floribunda oil was extracted and transesterified by alkali-catalyst using methanol with KOH as catalyst. The maximum yield of the obtained fatty acid methyl ester FAME (biodiesel) was 87.23%. The GC-MS Chromatography of the obtained fatty acid methyl ester FAME (biodiesel) showed the presence of Stearic acid, Oleic acid, Palmitic acid, Linoleic acid and Alpha-linolenic acid in the quantity of 61.68, 35.20, 1.15, 1.27 and 0.68%, respectively. Physicochemical properties (density, viscosity, flash, cloud and pour point; ash, water and sulfur contents; and corrosion on copper) values of Biodiesel (B100), and B20 (FAME blend in Gasoil), were within the range of values set by the international standards specifications of Petro-diesel and biodiesel (American Standard: ASTM D-6751 and European Standard- EN 14214). Thus, these two types of biodiesel (B100 and B20) could be used in a diesel engine in substitution of the Petro-diesel (Gasoil).