A BALUN transformer converts impedance into another one and also converts an unbalanced line into a balanced line. A compact size broadband BALUN transformer is designed using Klopfenstein taper line transformer approach to transform 50Ω impedance into 100 Ω. The results of the conventional BALUN are compared with the proposed compact size BALUN. In order to reduce the length of the BALUN, a curved microstrip line is used. The proposed compact size BALUN is 56 %- 70 % smaller in size w.r.t the conventional BALUN but at the cost of 6% - 11% reduction in the overall band. The conventional BALUN has measured % bandwidth of 165 while the reduced size BALUN has 159. The measured results are in agreement with the simulated results.
{"title":"SIZE REDUCTION OF KLOPFENSTEIN-BALUN TRANSFORMER FOR BALANCED ANTENNAS","authors":"S. Shastri, Ravish R. Singh, Sandeep pawar","doi":"10.22452/MJS.VOL40NO1.5","DOIUrl":"https://doi.org/10.22452/MJS.VOL40NO1.5","url":null,"abstract":"A BALUN transformer converts impedance into another one and also converts an unbalanced line into a balanced line. A compact size broadband BALUN transformer is designed using Klopfenstein taper line transformer approach to transform 50Ω impedance into 100 Ω. The results of the conventional BALUN are compared with the proposed compact size BALUN. In order to reduce the length of the BALUN, a curved microstrip line is used. The proposed compact size BALUN is 56 %- 70 % smaller in size w.r.t the conventional BALUN but at the cost of 6% - 11% reduction in the overall band. The conventional BALUN has measured % bandwidth of 165 while the reduced size BALUN has 159. The measured results are in agreement with the simulated results.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"40 1","pages":"55-66"},"PeriodicalIF":0.0,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43564094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Baharin, Kavirajaa Pandian Sambasevam, Nur Farahin Suhaimi, A. Rahat, S. Rahman, Shafira Nadira Musiran
Polypyrrole/graphene oxide (PPy/GO) was synthesized and evaluated as an effective photocatalyst to degrade 2-chlorophenol from aqueous solution under solar light irradiation. The PPy/GO composite was synthesized by the incorporation of PPy with the GO using Hummer’s method(s). Three different compositions of PPy/GO composites were prepared with the varying ratio of PPy and GO (1:1, 1:4, 9:1). Physicochemical properties of pristine PPy, GO and as synthesized PPy/GO composites were characterized using FTIR, UV-Vis, XRD, and SEM with EDX. The characterizations results revealed that PPy was successfully integrated with the GO in the PPy/GO composites. The photodegradation of 10 ppm of 2-chlorophenol has been observed under sunlight for 3 hours with the exposure contact time of 180 minutes before being tested with UV-Vis in order to obtain the percentage of degradation in the sunlight. The degradation study exhibited that PPy/GO composite with the ratio of 1:1 exhibited the highest percentage of degradation of ~ 71.08 and 68.96 % at the time of 180 minutes and 3 hours respectively.
{"title":"SUNLIGHT DRIVEN PHOTOCATALYTIC DEGRADATION OF 2-CHLOROPHENOL BY POLYPYRROLE/GRAPHENE OXIDE COMPOSITES","authors":"S. Baharin, Kavirajaa Pandian Sambasevam, Nur Farahin Suhaimi, A. Rahat, S. Rahman, Shafira Nadira Musiran","doi":"10.22452/MJS.VOL40NO1.6","DOIUrl":"https://doi.org/10.22452/MJS.VOL40NO1.6","url":null,"abstract":"Polypyrrole/graphene oxide (PPy/GO) was synthesized and evaluated as an effective photocatalyst to degrade 2-chlorophenol from aqueous solution under solar light irradiation. The PPy/GO composite was synthesized by the incorporation of PPy with the GO using Hummer’s method(s). Three different compositions of PPy/GO composites were prepared with the varying ratio of PPy and GO (1:1, 1:4, 9:1). Physicochemical properties of pristine PPy, GO and as synthesized PPy/GO composites were characterized using FTIR, UV-Vis, XRD, and SEM with EDX. The characterizations results revealed that PPy was successfully integrated with the GO in the PPy/GO composites. The photodegradation of 10 ppm of 2-chlorophenol has been observed under sunlight for 3 hours with the exposure contact time of 180 minutes before being tested with UV-Vis in order to obtain the percentage of degradation in the sunlight. The degradation study exhibited that PPy/GO composite with the ratio of 1:1 exhibited the highest percentage of degradation of ~ 71.08 and 68.96 % at the time of 180 minutes and 3 hours respectively.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"40 1","pages":"67-79"},"PeriodicalIF":0.0,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42504672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amirah Assyiqqin Abd Rahman, Ili Syazwana Abdullah, Teh Ser Huy, F. D. Khaidizar, S. Yap, K. W. Teik, Ngu Lock Hock, Chew Hui Bein, Ong Pei Tee, Z. Mohamed
Abstract Glycogen Storage Disease 1a is a rare autosomal recessive disorder caused by mutations in the glucose-6-phosphatase gene (G6PC) encoding glucose-6-phosphatase (G6Pase), a key enzyme for the maintenance of glucose homeostasis. Deficiency of G6Pase underlies this disease associated with life-threatening hypoglycemia and growth retardation. To date, more than 110 mutations have be found worldwide.The aims of this study are to identify the mutations in G6PC gene in Malaysian GSD1a patients using standard molecular genetics methods and to determine the pathogenicity level of the novel mutations. We performed mutation screening for 21 GSD1a unrelated patients (Malay n=14; Chinese n=7) using Polymerase Chain Reaction (PCR) and DNA sequencing. Genomic DNA was extracted from patients’ peripheral blood and all five G6PC exons were amplified using specific primers. Nine mutations were found, in which five mutations have been previously reported and four are potentially novel mutations (H52L, K76X, P113S and A346P). To obtain further evidence on the potential pathogenicity of the novel mutations, restriction enzyme assay and TaqMan genotyping assay were designed to investigate its allele frequency in a panel of healthy individuals that serves as the control population samples (n=50 Malays, n=50 Chinese, n=50 Indians). Restriction enzymes MseI and MboI were used to assay the K76X and P113S mutations respectively. For the other two mutations (H52L and A346P), TaqMan genotyping assays was employed due to inavailability of a suitable restriction enzyme to distinguish between the normal and mutant sequences. Results obtained from both the restriction enzymes assays and the TaqMan assays showed that no mutant allele could be found in all 150 healthy individuals (300 alleles). In conclusion, four yet unreported mutations have been found in the Malaysian population, and these mutations are potentially novel pathogenic mutations. These finding provide support that the mutations spectrum of G6PC gene in Malaysia is heterogeneous, at least among the Chinese and Malay populations. KEY WORDS: Glycogen storage disease type 1a (GSD1a); glucose-6-phosphatase enzyme (G6Pase); Glucose-6-Phosphate catalytic subunit (G6PC).
{"title":"NOVEL MUTATIONS OF THE G6PC GENE IN MALAYSIANS WITH GLYCOGEN STORAGE DISEASE 1a (GSD1a)","authors":"Amirah Assyiqqin Abd Rahman, Ili Syazwana Abdullah, Teh Ser Huy, F. D. Khaidizar, S. Yap, K. W. Teik, Ngu Lock Hock, Chew Hui Bein, Ong Pei Tee, Z. Mohamed","doi":"10.22452/MJS.VOL40NO1.3","DOIUrl":"https://doi.org/10.22452/MJS.VOL40NO1.3","url":null,"abstract":"Abstract \u0000Glycogen Storage Disease 1a is a rare autosomal recessive disorder caused by mutations in the glucose-6-phosphatase gene (G6PC) encoding glucose-6-phosphatase (G6Pase), a key enzyme for the maintenance of glucose homeostasis. Deficiency of G6Pase underlies this disease associated with life-threatening hypoglycemia and growth retardation. To date, more than 110 mutations have be found worldwide.The aims of this study are to identify the mutations in G6PC gene in Malaysian GSD1a patients using standard molecular genetics methods and to determine the pathogenicity level of the novel mutations. We performed mutation screening for 21 GSD1a unrelated patients (Malay n=14; Chinese n=7) using Polymerase Chain Reaction (PCR) and DNA sequencing. Genomic DNA was extracted from patients’ peripheral blood and all five G6PC exons were amplified using specific primers. Nine mutations were found, in which five mutations have been previously reported and four are potentially novel mutations (H52L, K76X, P113S and A346P). To obtain further evidence on the potential pathogenicity of the novel mutations, restriction enzyme assay and TaqMan genotyping assay were designed to investigate its allele frequency in a panel of healthy individuals that serves as the control population samples (n=50 Malays, n=50 Chinese, n=50 Indians). Restriction enzymes MseI and MboI were used to assay the K76X and P113S mutations respectively. For the other two mutations (H52L and A346P), TaqMan genotyping assays was employed due to inavailability of a suitable restriction enzyme to distinguish between the normal and mutant sequences. Results obtained from both the restriction enzymes assays and the TaqMan assays showed that no mutant allele could be found in all 150 healthy individuals (300 alleles). In conclusion, four yet unreported mutations have been found in the Malaysian population, and these mutations are potentially novel pathogenic mutations. These finding provide support that the mutations spectrum of G6PC gene in Malaysia is heterogeneous, at least among the Chinese and Malay populations. \u0000KEY WORDS: Glycogen storage disease type 1a (GSD1a); glucose-6-phosphatase enzyme (G6Pase); Glucose-6-Phosphate catalytic subunit (G6PC).","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"40 1","pages":"34-45"},"PeriodicalIF":0.0,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43680355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-28DOI: 10.22452/HTTPS://DOI.ORG/10.22452/MJS.VOL40NO1.2
Zainuddin Arriafdi, Arvind Ramachendrin, M. N. H. Alam
This paper presents the establishment of a miniature bioreactor platform for anaerobic microbial fermentation processes. It is made from a universal glass bottle and has a working volume of 16 mL. Reactor features included mixing via magnetic stirrer, temperature control via electrical heater and cells optical density (OD) sensing. All sensors and actuators integrated into the reactor were operated using LabVIEWTM (National Instrument, TX, US). The top lid of the bottle was modified to include a 3mm poly(methylmethacrylate) (PMMA) polymer layer where it was machined to provide spaces for fluidic ports and integration of sensors. Each reactor components were sterilized prior to conducting fermentation experiments. Main body of the reactor was made of glass and it was sterilized using the standard heat sterilization method (121oC for 15 minutes) where else other components were sterilized by exposure to UV light for 2 hours. A series of anaerobic fermentation experiments were conducted in batch mode using S.cerevisiae to evaluate the workability of the system. Fermentation experiments were conducted using inoculum concentration of 2 g∙L-1 and starting glucose concentration between 10 g∙L-1 and 20 g∙L-1. In every experiment, mixing was set to operate at 400 rpm and temperature was adjusted to 30 ± 2oC. Experiments were carried out until stationary phase was attained. Under these conditions, the best fermentation profile was obtained with glucose concentration of 20 /L where cell specific growth rate was found to be about 0.28 h-1. Bench marking step was also performed where results attained in a miniature bioreactor platform were comparable with the one attained using a 50 mL flask.
{"title":"STERILIZABLE MINIATURE BIOREACTOR PLATFORM FOR ANAEROBIC FERMENTATION PROCESS","authors":"Zainuddin Arriafdi, Arvind Ramachendrin, M. N. H. Alam","doi":"10.22452/HTTPS://DOI.ORG/10.22452/MJS.VOL40NO1.2","DOIUrl":"https://doi.org/10.22452/HTTPS://DOI.ORG/10.22452/MJS.VOL40NO1.2","url":null,"abstract":"This paper presents the establishment of a miniature bioreactor platform for anaerobic microbial fermentation processes. It is made from a universal glass bottle and has a working volume of 16 mL. Reactor features included mixing via magnetic stirrer, temperature control via electrical heater and cells optical density (OD) sensing. All sensors and actuators integrated into the reactor were operated using LabVIEWTM (National Instrument, TX, US). The top lid of the bottle was modified to include a 3mm poly(methylmethacrylate) (PMMA) polymer layer where it was machined to provide spaces for fluidic ports and integration of sensors. Each reactor components were sterilized prior to conducting fermentation experiments. Main body of the reactor was made of glass and it was sterilized using the standard heat sterilization method (121oC for 15 minutes) where else other components were sterilized by exposure to UV light for 2 hours. A series of anaerobic fermentation experiments were conducted in batch mode using S.cerevisiae to evaluate the workability of the system. Fermentation experiments were conducted using inoculum concentration of 2 g∙L-1 and starting glucose concentration between 10 g∙L-1 and 20 g∙L-1. In every experiment, mixing was set to operate at 400 rpm and temperature was adjusted to 30 ± 2oC. Experiments were carried out until stationary phase was attained. Under these conditions, the best fermentation profile was obtained with glucose concentration of 20 /L where cell specific growth rate was found to be about 0.28 h-1. Bench marking step was also performed where results attained in a miniature bioreactor platform were comparable with the one attained using a 50 mL flask.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41758957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT This paper discusses a quick and easy spectrophotometric approach for the estimation of promethazine HCl drug in a pure and pharmaceutical formulation. This system relies on the instruction of colour ion-pair between complexes. Promethazine HCl is reacted in acidic medium with methyl blue dye resulting in the formulation of a coloured product with a maximum absorption of 480 nm. In order to increase the sensitivity of the system, parameters of the reaction conditions were studied and optimised. Beer's law was applied on all the concentrations of 2.0 – 100.0 μg/ml, with 1.420 μg/ml and 6.088× 104 l/mol.cm as detection limit and molar absorptivity respectively. After plotting the calibration graph, the method's precision was checked and it was found the values were within the accurate range. The impact of widespread interferences on the current approach was examined. The method was utilised to estimate promethazine HCl in various pharmaceutical products available with fine recoveries in the market.
{"title":"A SENSITIVE SPECTROPHOTOMETRIC METHOD FOR TRACE AMOUNTS DETERMINATION OF PROMETHAZINE IN DRUG FORMULATIONS VIA ION PAIR COMPLEX FORMATION","authors":"M. Al-Rufaie","doi":"10.22452/MJS.VOL40NO1.7","DOIUrl":"https://doi.org/10.22452/MJS.VOL40NO1.7","url":null,"abstract":"ABSTRACT This paper discusses a quick and easy spectrophotometric approach for the estimation of promethazine HCl drug in a pure and pharmaceutical formulation. This system relies on the instruction of colour ion-pair between complexes. Promethazine HCl is reacted in acidic medium with methyl blue dye resulting in the formulation of a coloured product with a maximum absorption of 480 nm. In order to increase the sensitivity of the system, parameters of the reaction conditions were studied and optimised. Beer's law was applied on all the concentrations of 2.0 – 100.0 μg/ml, with 1.420 μg/ml and 6.088× 104 l/mol.cm as detection limit and molar absorptivity respectively. After plotting the calibration graph, the method's precision was checked and it was found the values were within the accurate range. The impact of widespread interferences on the current approach was examined. The method was utilised to estimate promethazine HCl in various pharmaceutical products available with fine recoveries in the market.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48167790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The pathogenicity of Pseudomonas aeruginosa gained from secreting virulence factors called Outer membrane vesicles (OMVs), this study aimed to determine the concentration of OMVs of two strains of P. aeruginosa and estimate the cytotoxicity effects of the isolated vesicles on human keratinocyte cell line HaCaT biomass. OMVs isolated from hospital strain was higher than from laboratory strain which support that hospital strain is more toxic than laboratory strain, the highest OMVs detected was from laboratory strain treated with Gentamicin, the response to the antibiotic stimulated the bacteria to secrete more virulence factors seeking for protection. The toxicity caused by Outer membrane vesicles showed a loss of biomass in hospital strain and a slight increase of biomass in laboratory strain, and that is another evident that hospital strain are more toxic than lab strain. The biomass and pictures illustrated that the cells still growing rapidly when it treated with low concentration of OMVs.
{"title":"THE CYTOTOXICITY EFFECTS OF OUTER MEMBRANE VESICLES ISOLATED FROM HOSPITAL AND LABORATORY STRAINS OF PSEUDOMONAS AERUGINOSA ON HUMAN KERATINOCYTE CELL LINE","authors":"Ali M Almashgab, E. Yahya, A. Banu","doi":"10.22452/mjs.vol39no3.3","DOIUrl":"https://doi.org/10.22452/mjs.vol39no3.3","url":null,"abstract":"The pathogenicity of Pseudomonas aeruginosa gained from secreting virulence factors called Outer membrane vesicles (OMVs), this study aimed to determine the concentration of OMVs of two strains of P. aeruginosa and estimate the cytotoxicity effects of the isolated vesicles on human keratinocyte cell line HaCaT biomass. OMVs isolated from hospital strain was higher than from laboratory strain which support that hospital strain is more toxic than laboratory strain, the highest OMVs detected was from laboratory strain treated with Gentamicin, the response to the antibiotic stimulated the bacteria to secrete more virulence factors seeking for protection. The toxicity caused by Outer membrane vesicles showed a loss of biomass in hospital strain and a slight increase of biomass in laboratory strain, and that is another evident that hospital strain are more toxic than lab strain. The biomass and pictures illustrated that the cells still growing rapidly when it treated with low concentration of OMVs.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"39 1","pages":"45-53"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48158994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-31DOI: 10.22452/mjs.vol39no3.12
Vandana Singh, A. Kaur, N. Gupta
Water scarcity is an emerging problem across the globe and therefore planners have started promoting the concept of reuse in sustainable planning for conserving water resources. The centralized reuse of treated wastewater is an expensive option and hence decentralized reuse of treated greywater (light and dark) needs to be popularized through simple inexpensive methods like filtration and adsorption. Greywater recycling extends a sustainable pathway in which freshwater resource is conserved and wastewater generation is minimized. Moreover, light greywater can be successfully treated through low-tech filters owing to its weaker strength. In this study, the potential of using low cost waste material as filtering media for treating light greywater was analyzed and possibility of providing prior preliminary treatment to light greywater entering media was assessed using geotextile. The experimental results showed that geotextile used in the study was efficient enough in removing considerable amount of TSS. The study investigates that the low-cost media like Rice husk, Rice husk ash, Sugarcane bagasse, Sugarcane bagasse ash used in treating light greywater could remove BOD, COD, TSS, NO3 and PO4 partially while crushed glass could remove considerable amount of BOD, COD and TSS.
{"title":"COMPARATIVE ANALYSIS OF THE FILTRATION POTENTIAL OF LIGHT GREYWATER THROUGH VARIOUS MEDIA","authors":"Vandana Singh, A. Kaur, N. Gupta","doi":"10.22452/mjs.vol39no3.12","DOIUrl":"https://doi.org/10.22452/mjs.vol39no3.12","url":null,"abstract":"Water scarcity is an emerging problem across the globe and therefore planners have started promoting the concept of reuse in sustainable planning for conserving water resources. The centralized reuse of treated wastewater is an expensive option and hence decentralized reuse of treated greywater (light and dark) needs to be popularized through simple inexpensive methods like filtration and adsorption. Greywater recycling extends a sustainable pathway in which freshwater resource is conserved and wastewater generation is minimized. Moreover, light greywater can be successfully treated through low-tech filters owing to its weaker strength. In this study, the potential of using low cost waste material as filtering media for treating light greywater was analyzed and possibility of providing prior preliminary treatment to light greywater entering media was assessed using geotextile. The experimental results showed that geotextile used in the study was efficient enough in removing considerable amount of TSS. The study investigates that the low-cost media like Rice husk, Rice husk ash, Sugarcane bagasse, Sugarcane bagasse ash used in treating light greywater could remove BOD, COD, TSS, NO3 and PO4 partially while crushed glass could remove considerable amount of BOD, COD and TSS.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"39 1","pages":"159-172"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44248752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Squid image features plays an important role in matching system. The effectiveness of these Squid species features depends on the global features. The identification of Squid species requires information of their morphology. Body shape is very useful to characterize the one species to another species. In Shape extraction, edge detection is an important aspect. Edge is an important visual feature and it represents visual information with a limited number of pixels. While considering the morphology of Squid, it can have uncertainty due to climatic conditions. Hence, in this study feature extraction is done by fuzzy edge map. In this paper we proposed Fuzzy Image Edge Image Matching Algorithm (FEIMA) for Squid species identification. Similarity metric is used for matching of query and the candidate images in the database and it finally displays the class of species. The proposed algorithm performance is calculated by using Average of precision and recall.
{"title":"FUZZY EDGE IMAGE MATCHING ALGORITHM FOR SQUID SPECIES IDENTIFICATION","authors":"K. Bindu, S. Jyothi, D. M. Mamatha","doi":"10.22452/mjs.vol39no3.8","DOIUrl":"https://doi.org/10.22452/mjs.vol39no3.8","url":null,"abstract":"Squid image features plays an important role in matching system. The effectiveness of these Squid species features depends on the global features. The identification of Squid species requires information of their morphology. Body shape is very useful to characterize the one species to another species. In Shape extraction, edge detection is an important aspect. Edge is an important visual feature and it represents visual information with a limited number of pixels. While considering the morphology of Squid, it can have uncertainty due to climatic conditions. Hence, in this study feature extraction is done by fuzzy edge map. In this paper we proposed Fuzzy Image Edge Image Matching Algorithm (FEIMA) for Squid species identification. Similarity metric is used for matching of query and the candidate images in the database and it finally displays the class of species. The proposed algorithm performance is calculated by using Average of precision and recall.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"39 1","pages":"95-103"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41724876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper , packaging plastic industrial were prepared with a flexible polymer and an additional weight ratio of nanoZrO2 .The method cast preparation was used in the preparation of samples and mechanical tests were carried out , including tear resistance , hardness, impact , tensile properties and water permeability . It was found that the improvement in mechanical properties increased weight ratio of ZrO2 due to this nano particles of the specification of the high quality mechanical, but the water permeability decreases with the increase weight ratio of ZrO2. Due to ZrO2 filled with polymer , an increase of 46% tear resistance , 14.6% hardness , 8.6% impact resistance , and 162% tensile strength (Ts) , 150 % tensile modulus (Tm) .
{"title":"PREPARATION AND CHARACTERIZATION OF FLEXIBLE PLASTIC PACKAGING USING ACRYLIC POLYMER SOLUTION","authors":"Seenaa I. Hussein","doi":"10.22452/mjs.vol39no3.4","DOIUrl":"https://doi.org/10.22452/mjs.vol39no3.4","url":null,"abstract":"In this paper , packaging plastic industrial were prepared with a flexible polymer and an additional weight ratio of nanoZrO2 .The method cast preparation was used in the preparation of samples and mechanical tests were carried out , including tear resistance , hardness, impact , tensile properties and water permeability . It was found that the improvement in mechanical properties increased weight ratio of ZrO2 due to this nano particles of the specification of the high quality mechanical, but the water permeability decreases with the increase weight ratio of ZrO2. Due to ZrO2 filled with polymer , an increase of 46% tear resistance , 14.6% hardness , 8.6% impact resistance , and 162% tensile strength (Ts) , 150 % tensile modulus (Tm) .","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46942877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Plasma sputtering was used to deposit carbon layer from pure graphite with thicknesses (20, 54, 63 nm) on a p-type silicon wafer substrate for the preparation of a Si-CNT (Silicon – Carbon Nano Tubes) junction without any catalyst. The I-V characteristics of the junction were found to be similar to that of the diode, which confirm that the carbon layer or, in other words, that the carbon nanotubes are acting as an n-type semiconductor. The effect of heat and light illumination on the I-V characteristics is studied. At temperatures (32, 40, 50 and 60 C), the I-V characteristics shows increase in conductivity with increasing the temperature for a certain thickness. The effect of light on I-V characteristics has also been studied showing an increase in current flow, the effect of both heat and light illumination is more pronounced at low values of the thickness of the CNT layer due to their low resistivity. Funding information : This project is granted by College of Science University of Mosul.
{"title":"EFFECT OF HEAT AND LIGHT ON ELECTRICAL PROPERTIES OF SI-CNT JUNCTION","authors":"A. M. Alfaidhi, B. M. Mustafa, M. Uonis","doi":"10.22452/mjs.vol39no3.5","DOIUrl":"https://doi.org/10.22452/mjs.vol39no3.5","url":null,"abstract":"Plasma sputtering was used to deposit carbon layer from pure graphite with thicknesses (20, 54, 63 nm) on a p-type silicon wafer substrate for the preparation of a Si-CNT (Silicon – Carbon Nano Tubes) junction without any catalyst. The I-V characteristics of the junction were found to be similar to that of the diode, which confirm that the carbon layer or, in other words, that the carbon nanotubes are acting as an n-type semiconductor. The effect of heat and light illumination on the I-V characteristics is studied. At temperatures (32, 40, 50 and 60 C), the I-V characteristics shows increase in conductivity with increasing the temperature for a certain thickness. The effect of light on I-V characteristics has also been studied showing an increase in current flow, the effect of both heat and light illumination is more pronounced at low values of the thickness of the CNT layer due to their low resistivity. Funding information : This project is granted by College of Science University of Mosul.","PeriodicalId":18094,"journal":{"name":"Malaysian journal of science","volume":"39 1","pages":"65-73"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46266068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：