Pub Date : 2023-02-10DOI: 10.25130/tjps.v20i5.1254
Abbas H. Taqi, Amal N. Shaker
In this paper was to develop method V1-CG methods associated gradient amended to increase the speed of the convergence while retaining the charactenstic mass convergence as the derivation of this method was based on strict convex quadratic function has been develop this way to public function in whichthe supreme derivatives not equal zero. The Desent property and global convergence for the proposed algorithm are established, oure numerical experiment on some test function and it showed us a clear improvement on the way V1-CG modified.
{"title":"Development Modified Conjugate Gradiente Algorithm","authors":"Abbas H. Taqi, Amal N. Shaker","doi":"10.25130/tjps.v20i5.1254","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1254","url":null,"abstract":"In this paper was to develop method V1-CG methods associated gradient amended to increase the speed of the convergence while retaining the charactenstic mass convergence as the derivation of this method was based on strict convex quadratic function has been develop this way to public function in whichthe supreme derivatives not equal zero. \u0000The Desent property and global convergence for the proposed algorithm are established, oure numerical experiment on some test function and it showed us a clear improvement on the way V1-CG modified.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73441362","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1223
Mohanad Qader Kareem
In this research a new Thin films from mixing together natural polymer (Gum acacia) polysaccharide with artificial polymer ( polyvinyl alcohol ) have been prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wavelength range (200-900)nm using UV-spectrophotometer .With thickness (3μm) the Optical band gap of the films has been calculated by using Taucs relation and variations in the values of optical band gap with the variation of concentrations in the blend films have been found from (3.75 -4.1) eV.
{"title":"Study Optical Properties of (GA) Polysaccharide/Polyvinyl alcohol thin films","authors":"Mohanad Qader Kareem","doi":"10.25130/tjps.v20i4.1223","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1223","url":null,"abstract":"In this research a new Thin films from mixing together natural polymer (Gum acacia) polysaccharide with artificial polymer ( polyvinyl alcohol ) have been prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wavelength range (200-900)nm using UV-spectrophotometer .With thickness (3μm) the Optical band gap of the films has been calculated by using Taucs relation and variations in the values of optical band gap with the variation of concentrations in the blend films have been found from (3.75 -4.1) eV.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73107226","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 : 2023-02-10DOI: 10.25130/tjps.v20i5.1253
Azher Abbas mohammad Ayad hammad, Mohammed Taha A. AL-gan'nam, KHalaf AL-loheby
In this research we study some fuzzy clustering methods in fuzzy time series forecasting especially Chen method and we used a FCM method to construct a fuzzy clustering . we suggest a new method for forecasting based on re-established a fuzzy group relation and we apply the suggest method and comparing the results of pervious methods for first and second order fuzzy relation with the number of clusters between 5 and 11 and we obtained best forecasting with m.s.e. less than the previous method.
{"title":"Study on Fuzzy-Clustering Methods in Fuzzy Time Series Forecasting with Application","authors":"Azher Abbas mohammad Ayad hammad, Mohammed Taha A. AL-gan'nam, KHalaf AL-loheby","doi":"10.25130/tjps.v20i5.1253","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1253","url":null,"abstract":"In this research we study some fuzzy clustering methods in fuzzy time series forecasting especially Chen method and we used a FCM method to construct a fuzzy clustering . we suggest a new method for forecasting based on re-established a fuzzy group relation and we apply the suggest method and comparing the results of pervious methods for first and second order fuzzy relation with the number of clusters between 5 and 11 and we obtained best forecasting with m.s.e. less than the previous method.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87117400","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1231
Laith K. Shaakir, Saad S. Marai
In this paper, we introduce a new class of operators acting on a complex Hilbert space H which is called quasi-normal operator of order n. An operator T∈B(H) is called quasi-normal operator of order n if T(T*n Tn)=(T*n Tn)T, where n is positive integer number greater than 1 and T* is the adjoint of the operator T, We investigate some basic properties of such operators and study relations among quasi-normal operator of order n and some other operators.
{"title":"quasi-normal Operator of order n","authors":"Laith K. Shaakir, Saad S. Marai","doi":"10.25130/tjps.v20i4.1231","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1231","url":null,"abstract":"In this paper, we introduce a new class of operators acting on a complex Hilbert space H which is called quasi-normal operator of order n. An operator T∈B(H) is called quasi-normal operator of order n if T(T*n Tn)=(T*n Tn)T, where n is positive integer number greater than 1 and T* is the adjoint of the operator T, We investigate some basic properties of such operators and study relations among quasi-normal operator of order n and some other operators.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"161 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86435747","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1208
Ibraheem A. Latif
Pseudomonas aeruginosa presents three types of motility: swimming , twitching and swarming. The latter is characterized by rapid and coordinated group movement over a semisolid (viscous) surface resulting from morphological differentiation and intercellular interactions. A striking feature of P. aeruginosa swarming motility is the formation of migrating tendrils producing colonies with complex fractal-like patterns. In this study we reported an evidence that P. aeruginosa can spread on semisolid surfaces and expose swarming motility and to investigate the swarming motility patterns of these bacteria isolating from Otitis media, we culturing thirty clinical isolations of these bacterium on the swarming agar plate containing 0.5% agar. Our results reveals that 12 (40%) of studied isolates were detected dendritic swarming pattern , and 18 (60%) of these isolates were ring swarming pattern, besides that seven of P. aeruginosa total isolates were able to reveal both patterns of swarming motility when sub cultured on new swarming agar media, the results showed that the site of bacteria isolation don't influence and determine a swarming motility patterns of this bacteria, where, there are many studies on the same bacteria isolated from different infection sites which show the same swarming motility patterns according to this study. However, the mechanisms responsible for the dendritic and ring swarming patterns are largely unknown. Swarming motility may be an important factor in the pathogenesis of P. aeruginosa.
{"title":"Swarming motility Patterns of Pseudomonas aeruginosa isolated from Otitis media","authors":"Ibraheem A. Latif","doi":"10.25130/tjps.v20i4.1208","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1208","url":null,"abstract":"Pseudomonas aeruginosa presents three types of motility: swimming , twitching and swarming. The latter is characterized by rapid and coordinated group movement over a semisolid (viscous) surface resulting from morphological differentiation and intercellular interactions. A striking feature of P. aeruginosa swarming motility is the formation of migrating tendrils producing colonies with complex fractal-like patterns. In this study we reported an evidence that P. aeruginosa can spread on semisolid surfaces and expose swarming motility and to investigate the swarming motility patterns of these bacteria isolating from Otitis media, we culturing thirty clinical isolations of these bacterium on the swarming agar plate containing 0.5% agar. Our results reveals that 12 (40%) of studied isolates were detected dendritic swarming pattern , and 18 (60%) of these isolates were ring swarming pattern, besides that seven of P. aeruginosa total isolates were able to reveal both patterns of swarming motility when sub cultured on new swarming agar media, the results showed that the site of bacteria isolation don't influence and determine a swarming motility patterns of this bacteria, where, there are many studies on the same bacteria isolated from different infection sites which show the same swarming motility patterns according to this study. However, the mechanisms responsible for the dendritic and ring swarming patterns are largely unknown. Swarming motility may be an important factor in the pathogenesis of P. aeruginosa. ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83874588","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 : 2023-02-10DOI: 10.25130/tjps.v20i3.1199
Abdullah M. Ali
The aim of the present research is studying the mechanical properties of composites matrix fabricated of aluminum (Al-4.5%Cu-1.5%Mg) by cast and to proceeding the heat treatment solution from different temperatures 500oC, 525oC and 550oC for different times 2hr and 4hr, and then proceeding the requil hardness (HBR), Therefore we conducted the optimum value from the alloy basic (A) at the temperature 550oC for 6hr time. Also we prepared the matrix composite reinforced by alumina (Al2O3) with different percentage weight (1.5%-2.5%) and three different particles sizes (75µm≥63µm≥53µm≥0.1µm) which named as (A1, A2, B1, B2, C1, C2) according to their weight and size percentages, and then proceeding the heat treatment solution and official ageing about them at the temperature degree 550oC for 2hr and4hr. Mechanical tests like hardness and Tensile resistance were conducted all of them reached that the composite material (A2) in which there weight and size percentages are 2.5% and ≥0.1µm have upper values of these test's, accordingly we concluded that the reduce particles means increased its rigidity, toughness and solidity. Finally the microstructures tests shows that the prepared composites materials have small size as compared with microstructure of the basic cast alloys and the distribution of alumina particles was fairly homogeneous in the basic allot, also we showed that the heat treatment solutions and official ageing are affected at these composite materials and alloys.
{"title":"Study the Mechanical Properties of (Al-Cu-Mg) Matrix Composites Reinforced by Alumina Particles","authors":"Abdullah M. Ali","doi":"10.25130/tjps.v20i3.1199","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1199","url":null,"abstract":"The aim of the present research is studying the mechanical properties of composites matrix fabricated of aluminum (Al-4.5%Cu-1.5%Mg) by cast and to proceeding the heat treatment solution from different temperatures 500oC, 525oC and 550oC for different times 2hr and 4hr, and then proceeding the requil hardness (HBR), Therefore we conducted the optimum value from the alloy basic (A) at the temperature 550oC for 6hr time. \u0000Also we prepared the matrix composite reinforced by alumina (Al2O3) with different percentage weight (1.5%-2.5%) and three different particles sizes (75µm≥63µm≥53µm≥0.1µm) which named as (A1, A2, B1, B2, C1, C2) according to their weight and size percentages, and then proceeding the heat treatment solution and official ageing about them at the temperature degree 550oC for 2hr and4hr. \u0000Mechanical tests like hardness and Tensile resistance were conducted all of them reached that the composite material (A2) in which there weight and size percentages are 2.5% and ≥0.1µm have upper values of these test's, accordingly we concluded that the reduce particles means increased its rigidity, toughness and solidity. \u0000Finally the microstructures tests shows that the prepared composites materials have small size as compared with microstructure of the basic cast alloys and the distribution of alumina particles was fairly homogeneous in the basic allot, also we showed that the heat treatment solutions and official ageing are affected at these composite materials and alloys.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83944292","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1219
Najeba F. Salih, Mohamad S. Jaafar, Ammar A. Battawy
This research describes of the results that have been obtained from alpha particles after carrying out the present study. The study was conducted on 30 urine samples taken from women, who were either infertile, had weak fertility or had uterus tumor. The age of those women ranged between (21 - 43) years. The results showed that the low level of alpha emitters and the higher level of alpha emitters, values calculated in 20 ml of female urine samples were 0.726 ppm in Sedakan and 0.065 ppm in Shorsh respectively. Thus, these areas don't represent a source of danger to human life. This denotes that there is no evidence of health problems. Significant difference found in participants’ laboratory outcomes between Erbil and Sulaymania. Significant correlations (p < 0.001) found between participants’ demographic data and their laboratory outcomes.
{"title":"Determination The Infertility by Impacts of Alpha Emitters on Women Urine","authors":"Najeba F. Salih, Mohamad S. Jaafar, Ammar A. Battawy","doi":"10.25130/tjps.v20i4.1219","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1219","url":null,"abstract":"This research describes of the results that have been obtained from alpha particles after carrying out the present study. The study was conducted on 30 urine samples taken from women, who were either infertile, had weak fertility or had uterus tumor. The age of those women ranged between (21 - 43) years. The results showed that the low level of alpha emitters and the higher level of alpha emitters, values calculated in 20 ml of female urine samples were 0.726 ppm in Sedakan and 0.065 ppm in Shorsh respectively. Thus, these areas don't represent a source of danger to human life. This denotes that there is no evidence of health problems. Significant difference found in participants’ laboratory outcomes between Erbil and Sulaymania. Significant correlations (p < 0.001) found between participants’ demographic data and their laboratory outcomes.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82636851","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1205
Zainab K. khaleel, Abdul Salam M. Al-Mukhtar
Objectives: To detect enteric protozoal species in stool samples of children affected by malignancies who are receiving chemotherapy compared to healthy children and to investigate differences in the infection rates among different cancer types. Materials and Methods: This study included 100 children diagnosed with malignancy under chemotherapy attended Ibn-Al-Atheer Teaching Hospital during the period from December 2013 to June 2014. The study also included 50 apparently healthy children as a control group who were age and gender matched to the cancer patients. Children were already diagnosed as having malignant disease by consultant oncologists and receiving chemotherapy. A Questionnaire Form was completed for each child. Stool samples were taken from patients and controls to detect protozoal infections. The stool was tested by direct wet mount preparation, iodine staining, and concentration methods, hot modified Ziehl-Neelson staining method was also used to detect the acid-fast oocysts of Cryptosporidium. Results: Enteric protozoal infection was detected in 60 (60%) of patients compared to 5(10%) of controls (p<0.05). Four protozoal species were observed among patients included G. lamblia representing (24%), C. parvum (19%), E. histolytica/E. dispar (5%), and B. species (5%). Whereas in the control group, included G. lamblia (6%), C. parvum (2%), and B. species (2%). The highest infection rate was found among children with lymphoma (77.27%), followed by (62.26%) and (40%) among patients with leukemia and solid tumors, respectively (p>0.05). Conclusions: The incidence of enteric protozoal infections is higher among cancer children than healthy group and dominates by Giardia lamblia and Cryptosporidium parvum, but other species including E. histolytica/ E. dispar and B. hominis are also found. Patients with lymphohematopoietic malignancies show the highest infection rates.
{"title":"Enteric Protozoal Infections among Children with Cancers Receiving Chemotherapy","authors":"Zainab K. khaleel, Abdul Salam M. Al-Mukhtar","doi":"10.25130/tjps.v20i4.1205","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1205","url":null,"abstract":"Objectives: To detect enteric protozoal species in stool samples of children affected by malignancies who are receiving chemotherapy compared to healthy children and to investigate differences in the infection rates among different cancer types. \u0000Materials and Methods: This study included 100 children diagnosed with malignancy under chemotherapy attended Ibn-Al-Atheer Teaching Hospital during the period from December 2013 to June 2014. The study also included 50 apparently healthy children as a control group who were age and gender matched to the cancer patients. Children were already diagnosed as having malignant disease by consultant oncologists and receiving chemotherapy. A Questionnaire Form was completed for each child. Stool samples were taken from patients and controls to detect protozoal infections. The stool was tested by direct wet mount preparation, iodine staining, and concentration methods, hot modified Ziehl-Neelson staining method was also used to detect the acid-fast oocysts of Cryptosporidium. \u0000Results: Enteric protozoal infection was detected in 60 (60%) of patients compared to 5(10%) of controls (p<0.05). Four protozoal species were observed among patients included G. lamblia representing (24%), C. parvum (19%), E. histolytica/E. dispar (5%), and B. species (5%). Whereas in the control group, included G. lamblia (6%), C. parvum (2%), and B. species (2%). The highest infection rate was found among children with lymphoma (77.27%), followed by (62.26%) and (40%) among patients with leukemia and solid tumors, respectively (p>0.05). \u0000Conclusions: The incidence of enteric protozoal infections is higher among cancer children than healthy group and dominates by Giardia lamblia and Cryptosporidium parvum, but other species including E. histolytica/ E. dispar and B. hominis are also found. Patients with lymphohematopoietic malignancies show the highest infection rates.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"158 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86635952","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1210
Semaa Abdulrahman Shaban
This study involved (50) patient’s that complaining rheumatoid arthritis from both genders (7 females and 43 males). Their ages range from (26-68) years there are taken from hospitals and clinics, in addition to the control which involve (30) person that look normal and their ages ranges from (23-54). Enzyme linked immuno-sorbent assay (ELISA) has been used to measure the level of IL-6 in serum, in which the medium of IL-6 in patients was significantly higher (p ≤ 0.01) than control group. The study show’s significant difference (p ≤ 0.01) in level of IL-6 between males and females and between age groups.
{"title":"Study the Serum IL-6 Level between Rheumatoid Arthritis Patients and Control","authors":"Semaa Abdulrahman Shaban","doi":"10.25130/tjps.v20i4.1210","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1210","url":null,"abstract":"This study involved (50) patient’s that complaining rheumatoid arthritis from both genders (7 females and 43 males). Their ages range from (26-68) years there are taken from hospitals and clinics, in addition to the control which involve (30) person that look normal and their ages ranges from (23-54). \u0000Enzyme linked immuno-sorbent assay (ELISA) has been used to measure the level of IL-6 in serum, in which the medium of IL-6 in patients was significantly higher (p ≤ 0.01) than control group. \u0000The study show’s significant difference (p ≤ 0.01) in level of IL-6 between males and females and between age groups.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83243823","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 : 2023-02-10DOI: 10.25130/tjps.v20i4.1222
Mohanad Qader Kareem, Suzan Abd-allah Hassan, Maad Mohammed Ameen
In this research we fabricated new Thin films of of pure(50:50)%GA/PVA& (50:50)%GA/PVA doping By (COCl2.6H2O) & (CuCl2.6H2O).Were prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wave length range(200-800)nm using UVspectrophotometer Optical band gap of the films has been calculated by using Taucs relation and variations in the values of optical band gap of pure(50:50)%GA/PVA (3.94 ev)& (50:50)%GA/PVA doping By(CoCl2.6H2O)(3.8 ev) &(CuCl2.6H2O) (3.62ev
{"title":"Doping Effect ((COCl2.6H2O) & (CuCl2.6H2O))(2%)w/v on Optical Energy gap of (GA/PVA) composite films","authors":"Mohanad Qader Kareem, Suzan Abd-allah Hassan, Maad Mohammed Ameen","doi":"10.25130/tjps.v20i4.1222","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1222","url":null,"abstract":"In this research we fabricated new Thin films of of pure(50:50)%GA/PVA& (50:50)%GA/PVA doping By (COCl2.6H2O) & (CuCl2.6H2O).Were prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wave length range(200-800)nm using UVspectrophotometer Optical band gap of the films has been calculated by using Taucs relation and variations in the values of optical band gap of pure(50:50)%GA/PVA (3.94 ev)& (50:50)%GA/PVA doping By(CoCl2.6H2O)(3.8 ev) &(CuCl2.6H2O) (3.62ev","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87268514","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}
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