Pub Date : 2023-02-10DOI: 10.25130/tjps.v20i5.1251
Khalid A. M. Khalaf, Bashir M. S. Khalaf
The object of the research is to develop a number of techniques on the subject of multiple shooting for solving stiff initial value problems, and these techniques increase the accuracy of numerical solutions of stiff problems, as well as reduce the accumulation of errors, In addition to reducing the algebraic equations to get to the solution. We used mixed-multiple shooting in the development of these techniques.
{"title":"Techniques for Mixed Multiple Shooting for solve Stiff Initial Value Problems","authors":"Khalid A. M. Khalaf, Bashir M. S. Khalaf","doi":"10.25130/tjps.v20i5.1251","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1251","url":null,"abstract":"The object of the research is to develop a number of techniques on the subject of multiple shooting for solving stiff initial value problems, and these techniques increase the accuracy of numerical solutions of stiff problems, as well as reduce the accumulation of errors, In addition to reducing the algebraic equations to get to the solution. We used mixed-multiple shooting in the development of these techniques. \u0000 ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"248 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76984055","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.v20i4.1214
Nazar Ahemd Naji, Nagham Qasim Kazim
Acute heart disease patients often go on to develop worsening renal function, termed as cardiorenal syndrome. The growing breadth of studies has shown the implications of combining multiple biomarkers to better chart outcomes between heart and kidneys, and produce desirable results in such patients, as cystatin C and galectin-3 The aim: To estimate the levels of cystatin C and galectin-3, and their relationship with cardiorenal syndrome. Methods: Cystatin C and galectin-3 were obtained from 144 samples: 50 sample with cardiorenal syndrome, 25 sample with heart disease, 25 sample with kidney disease and 44 normal healthy . Results: A highly significant increase (p<0.0001) in the levels of cystatin C in serum of patients with cardirenal syndrome, heart disease and kidney disease compared with normal individuals. A highly significant (p<0.0001) increase in the serum levels of galectin-3 in patients with cardirenal syndrome and patients with heart disease, significant increase in the serum levels of galectin-3 and in patients with kidney disease when compared with control group Conclusions: Cystatin C and galectin-3 have higher diagnostic validity values in the current study, which may be useful as a diagnostic tool to identify recurrence of the cardiorenal syndromes
{"title":"The Role of Cystatin C and Galectin-3 in Cardiorenal Syndrome","authors":"Nazar Ahemd Naji, Nagham Qasim Kazim","doi":"10.25130/tjps.v20i4.1214","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1214","url":null,"abstract":"Acute heart disease patients often go on to develop worsening renal function, termed as cardiorenal syndrome. The growing breadth of studies has shown the implications of combining multiple biomarkers to better chart outcomes between heart and kidneys, and produce desirable results in such patients, as cystatin C and galectin-3 \u0000The aim: To estimate the levels of cystatin C and galectin-3, and their relationship with cardiorenal syndrome. \u0000Methods: Cystatin C and galectin-3 were obtained from 144 samples: 50 sample with cardiorenal syndrome, 25 sample with heart disease, 25 sample with kidney disease and 44 normal healthy . \u0000Results: A highly significant increase (p<0.0001) in the levels of cystatin C in serum of patients with cardirenal syndrome, heart disease and kidney disease compared with normal individuals. A highly significant (p<0.0001) increase in the serum levels of galectin-3 in patients with cardirenal syndrome and patients with heart disease, significant increase in the serum levels of galectin-3 and in patients with kidney disease when compared with control group \u0000Conclusions: Cystatin C and galectin-3 have higher diagnostic validity values in the current study, which may be useful as a diagnostic tool to identify recurrence of the cardiorenal syndromes","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83492379","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.v20i4.1207
Abdullah Abdul Kareem Hassan
Among 22 Iraqi Trichoderma harzianum and T.viride isolates, T3,T5,D5,S1 and S6 related to T. harzianum showed a higher antagonistic activity against the plant pathogenic fungi Fusarium oxysporum and Rhizoctonia solani. These isolates were selected for improvement their biocontrol activity by usi ng uv-irradiation. The optimum exposure time to ultraviolet irradiation is 30 min, in which, the percentage of kill was 98-99% .After UV-irradiation treatment (Quartz lamps 30W at 240-280 nm, peak 254nm, distance from the source was 20 cm), antagonistic capability against R. solani and F. oxysporum was improved in mutants MT3,MT5,MS1 and MS6, in which antagonistic reaction score were 3.6,3.9,3.2 and 3.6 against F. oxysporum and 3.7,4,3.4 and 4 against R. solani compared to 3.2, 2.8, 2.6 and 2.8 against F. oxysporum and 2.7, 2.9,3.1 and 3 against R. solani in the wild types T3, T5, S1 and S6,respectively. The growth of T. harzianum isolates (estimated as colony diameter) was significantly increased in all T. harzianum mutants except MT3 and MD5 mutants, CMCase activity was increased from 13.2, 16.2, 10 and 15.8 U/ml / mg protein in the wild isolates T3, T5, S1 and S6 to 18.6, 20.3, 17.7 and 22.5 U/ml / mg protein in the mutants MT3, MT5, MS1 and MS6, respectively. Chitinase activity was also increased in these mutants to 88.4,132.3,86.1 and 136.7 U/ml / mg protein, compared to 82.7, 93.2, 74.5 and 103.2 U/ml / mg protein in their wild, respectively. As comparison between wild types and mutants, the maximum growth was 5.2 and 4.8 cm (as colonies diameters) by MT5 in present of 25% of the recommended field rate of Topsin and Benomyl, compared to 3.3 and 2.2 cm in the wild type T5, respectively, followed by MS6,in which, the maximum growth in this mutant was 4.8 and 4.2 cm in the same concentration of these two fungicides, compared to 3.4 and 2.5 cm in the wild type S6, respectively. According to these results, the mutants MT5 and MS6 developed from UV-irradiation treatment, showed as promising T. harzianum mutants through their antagonistic activity (at mycoparasitism level) , fast growth, higher CMCase and chitinase activity and growth in 25% of the recommended field rate of Elsa , 25 and 50% of the recommended field rate of Diathen and Mizab and all concentrations of Topsin and Benomyl with complete inhibition of pathogenic fungi F. oxysporum and R. solani.
{"title":"Improvement of antagonism and fungicides tolerance in Trichoderma harzianum and T.viride local isolates by Ultra-Violet irradiation","authors":"Abdullah Abdul Kareem Hassan","doi":"10.25130/tjps.v20i4.1207","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1207","url":null,"abstract":"Among 22 Iraqi Trichoderma harzianum and T.viride isolates, T3,T5,D5,S1 and S6 related to T. harzianum showed a higher antagonistic activity against the plant pathogenic fungi Fusarium oxysporum and Rhizoctonia solani. These isolates were selected for improvement their biocontrol activity by usi \u0000ng uv-irradiation. The optimum exposure time to ultraviolet irradiation is 30 min, in which, the percentage of kill was 98-99% .After UV-irradiation treatment (Quartz lamps 30W at 240-280 nm, peak 254nm, distance from the source was 20 cm), antagonistic capability against R. solani and F. oxysporum was improved in mutants MT3,MT5,MS1 and MS6, in which antagonistic reaction score were 3.6,3.9,3.2 and 3.6 against F. oxysporum and 3.7,4,3.4 and 4 against R. solani compared to 3.2, 2.8, 2.6 and 2.8 against F. oxysporum and 2.7, 2.9,3.1 and 3 against R. solani in the wild types T3, T5, S1 and S6,respectively. The growth of T. harzianum isolates (estimated as colony diameter) was significantly increased in all T. harzianum mutants except MT3 and MD5 mutants, CMCase activity was increased from 13.2, 16.2, 10 and 15.8 U/ml / mg protein in the wild isolates T3, T5, S1 and S6 to 18.6, 20.3, 17.7 and 22.5 U/ml / mg protein in the mutants MT3, MT5, MS1 and MS6, respectively. Chitinase activity was also increased in these mutants to 88.4,132.3,86.1 and 136.7 U/ml / mg protein, compared to 82.7, 93.2, 74.5 and 103.2 U/ml / mg protein in their wild, respectively. As comparison between wild types and mutants, the maximum growth was 5.2 and 4.8 cm (as colonies diameters) by MT5 in present of 25% of the recommended field rate of Topsin and Benomyl, compared to 3.3 and 2.2 cm in the wild type T5, respectively, followed by MS6,in which, the maximum growth in this mutant was 4.8 and 4.2 cm in the same concentration of these two fungicides, compared to 3.4 and 2.5 cm in the wild type S6, respectively. According to these results, the mutants MT5 and MS6 developed from UV-irradiation treatment, showed as promising T. harzianum mutants through their antagonistic activity (at mycoparasitism level) , fast growth, higher CMCase and chitinase activity and growth in 25% of the recommended field rate of Elsa , 25 and 50% of the recommended field rate of Diathen and Mizab and all concentrations of Topsin and Benomyl with complete inhibition of pathogenic fungi F. oxysporum and R. solani.","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":"85181149","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.v20i4.1224
In this research we fabricated new Thin films of (Gum acacia) polysaccharide , melamine formaldehyde and their blends were prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wavelength range (200-900)nm using UV-spectrophotometer. 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 concentration in the blend films have been found from (3.75-4.15) ev
{"title":"Characterization Study and Optical properties of (GA) Gum acacia /(MF)Melamine formaldehyde composites","authors":"","doi":"10.25130/tjps.v20i4.1224","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1224","url":null,"abstract":"In this research we fabricated new Thin films of (Gum acacia) polysaccharide , melamine formaldehyde and their blends were prepared using cast method .Optical absorption spectra of these thin films have been recorded in the wavelength range (200-900)nm using UV-spectrophotometer. 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 concentration in the blend films have been found from (3.75-4.15) ev","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":"78380976","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.v20i4.1226
In this paper, we study the necessary condition where a nearly Kahler manifold of flat concircular tensor has been found. And the relationship between these invariants and additional properties of symmetry concircular tensor, as well as geometrical sense of the reference (manipulation) in zero of these invariants are studied. Let M - smooth manifold of dimension 2n; - algebra of smooth functions on M; - the module of smooth vector fields on manifold of M; g = <·, > - Riemannian metrics; Ñ – Riemannian connection of the metrics g on M; d - the operator of exterior differentiation. In the further all manifold, Tensor fields, etc. objects are assumed smooth a class .
{"title":"Geometry of concircular curvature tensor of Nearly Kahler manifold","authors":"","doi":"10.25130/tjps.v20i4.1226","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1226","url":null,"abstract":"In this paper, we study the necessary condition where a nearly Kahler manifold of flat concircular tensor has been found. And the relationship between these invariants and additional properties of symmetry concircular tensor, as well as geometrical sense of the reference (manipulation) in zero of these invariants are studied. \u0000Let M - smooth manifold of dimension 2n; - algebra of smooth functions on M; - the module of smooth vector fields on manifold of M; g = <·, > - Riemannian metrics; Ñ – Riemannian connection of the metrics g on M; d - the operator of exterior differentiation. In the further all manifold, Tensor fields, etc. objects are assumed smooth a class .","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75191143","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.v20i3.1203
Abdul-Majeed E.Ibrahim, Raid A.Ismail, Wattban N. Nada
The optical properties of pure and doped Cadmium Sulfide thin films have been stadied in the present work. Cadimum Sulfide can be doped by the Lead of (5%,10%,15%,20%) which prepared by chemical spray pyrolysis technique were deposited on (350ºC) glass substrates. The optical properties– Trasmittance (T), Absorbtance (A), Energy band gap (Eg), Absorption coefficient(α) and Extinction Coefficient (ko) - within wave length range (330-1100)nm. The cadmium sulfide (pure) thin flims were found to exhibit hight trnsmittance abute (82-86)%, the transmittance decreases with the increasing the doped ratio by the lead(Pb).The direct band gap energy of films decreases from (2.40eV) for the pure thin films to (2.35,2.31,2.25,2.19 eV) for the doped by lead at (5%,10%,15%,20%).
{"title":"Study the Doping Effect of Lead(Pb) on the Optical Properties of Cadmium Sulfide (CdS) Thin Films.","authors":"Abdul-Majeed E.Ibrahim, Raid A.Ismail, Wattban N. Nada","doi":"10.25130/tjps.v20i3.1203","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1203","url":null,"abstract":"The optical properties of pure and doped Cadmium Sulfide thin films have been stadied in the present work. Cadimum Sulfide can be doped by the Lead of (5%,10%,15%,20%) which prepared by chemical spray pyrolysis technique were deposited on (350ºC) glass substrates. The optical properties– Trasmittance (T), Absorbtance (A), Energy band gap (Eg), Absorption coefficient(α) and Extinction Coefficient (ko) - within wave length range (330-1100)nm. The cadmium sulfide (pure) thin flims were found to exhibit hight trnsmittance abute (82-86)%, the transmittance decreases with the increasing the doped ratio by the lead(Pb).The direct band gap energy of films decreases from (2.40eV) for the pure thin films to (2.35,2.31,2.25,2.19 eV) for the doped by lead at (5%,10%,15%,20%).","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88755376","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.v20i5.1244
Ekram Abdullah Basheer, Kalid Matny Al-jaanaby, Feras Shauki Al-joboury
In this paper, the preparation a number of heterocyclic compounds five membered rings like oxadiazole, imidazolidine, thiozolidine, tetrazole, azetidine 2-on. Hydrazide (1) was synthesized from the reaction of levofloxacin with hydrazine hydrate. Hydrazone compounds (2-9) were synthesized from the reaction (1) with a number of aldehydes, and 3-acetyl-1,3,4-oxadiazol (10-17) was prepared from the reaction of hydrazones (2-9) with acetic anhydride, 5-oxo-2-aryl imadazoldine derivative (18-25) were prepared from the reaction of hydrazone derivatives (2-9) with glycine, while the reaction of hydrazone with thioglygolic acid gave 4-oxo-2-aryl-thiozolidine (26-33),tetrazole derivative(34-41)prepared from the reaction of hydrazone(2-9) with sodium azide in tetrahyro furan.azetidine-2-on(42-49)with chloro acetyl chloride in DMF and and in the presence of triethyl amine these compounds were characterized on bases of spectral and physical data.
{"title":"Synthesis a Number of Heterocyclic Compounds Derived From Levofloxacin","authors":"Ekram Abdullah Basheer, Kalid Matny Al-jaanaby, Feras Shauki Al-joboury","doi":"10.25130/tjps.v20i5.1244","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1244","url":null,"abstract":"In this paper, the preparation a number of heterocyclic compounds five membered rings like oxadiazole, imidazolidine, thiozolidine, tetrazole, azetidine 2-on. Hydrazide (1) was synthesized from the reaction of levofloxacin with hydrazine hydrate. Hydrazone compounds (2-9) were synthesized from the reaction (1) with a number of aldehydes, and 3-acetyl-1,3,4-oxadiazol (10-17) was prepared from the reaction of hydrazones (2-9) with acetic anhydride, 5-oxo-2-aryl imadazoldine derivative (18-25) were prepared from the reaction of hydrazone derivatives (2-9) with glycine, while the reaction of hydrazone with thioglygolic acid gave 4-oxo-2-aryl-thiozolidine (26-33),tetrazole derivative(34-41)prepared from the reaction of hydrazone(2-9) with sodium azide in tetrahyro furan.azetidine-2-on(42-49)with chloro acetyl chloride in DMF and and in the presence of triethyl amine these compounds were characterized on bases of spectral and physical data.","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91540825","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.v20i3.1181
Adil. A. Hayder
The effect of alcohol extracts twigs and cones (male and female) Cypress lime oils on different phases of southern cowpea beetle Callosobruchus maculatus F. (Coleoptera:Chrysomelidae) was carried out. The results showed the efficiency of both oils with significant effects on immature stages and adult emergence. The Cypress cones extract oil was more effective than twigs oil extracts in activity in all treatments numbers. The rates of productivity and first generation (F1) reduction reached 34.96% and 87.22% respectively at 1.5% concentration compare with Cypress twigs oil extracts which reached 66.22% and 81.58% respectively. The all oil concentrations that used in this study did not all effect on the germination rates ranged between 80.00- 90.00% The superiority of the alcoholic extract oil cones cypress lime to reduce the percentage of the damage amounted to 31.11% as compared to alcohol oil extracts of its twigs and control treatment, which amounted to 44.66% and 99.66 - 99.33%, respectively and found significant differences in the ratios in the attraction and repellency responses. The Cypress twigs oil in different concentrations showed a superior repellency effect on insect. The highest average of individuals repellency reached 7.00 and 8.00 rates 70.00 and 80.00% with attractant rates13.30 and 20.30 % as it balance rates reached -33.00 and -60.00% after 15 and 30 minutes of treating reached maximum at 1.5%, while Cypress cones oil showed significant attractant effect, the concentration 1.5% recorded highest rates of attractant, the average of individuals attractant reached 5.00 and 7.66% rates 50.00 and 76.60% and repellent rates 13.30 and 16.60% as it balance rates reached + 36.67 and + 60.00 % after 15 and 30 minutes of treating .
{"title":"Biological effect of alcohol extracts for oils of Cypress Cupressus sempervirens L. in the life performance of southern cowpea beetle Callosobruchus maculatus F. (Coleoptera:Chrysomelidae).","authors":"Adil. A. Hayder","doi":"10.25130/tjps.v20i3.1181","DOIUrl":"https://doi.org/10.25130/tjps.v20i3.1181","url":null,"abstract":"The effect of alcohol extracts twigs and cones (male and female) Cypress lime oils on different phases of southern cowpea beetle Callosobruchus maculatus F. (Coleoptera:Chrysomelidae) was carried out. The results showed the efficiency of both oils with significant effects on immature stages and adult emergence. \u0000The Cypress cones extract oil was more effective than twigs oil extracts in activity in all treatments numbers. The rates of productivity and first generation (F1) reduction reached 34.96% and 87.22% respectively at 1.5% concentration compare with Cypress twigs oil extracts which reached 66.22% and 81.58% respectively. The all oil concentrations that used in this study did not all effect on the germination rates ranged between 80.00- 90.00% The superiority of the alcoholic extract oil cones cypress lime to reduce the percentage of the damage amounted to 31.11% as compared to alcohol oil extracts of its twigs and control treatment, which amounted to 44.66% and 99.66 - 99.33%, respectively and found significant differences in the ratios in the attraction and repellency responses. The Cypress twigs oil in different concentrations showed a superior repellency effect on insect. The highest average of individuals repellency reached 7.00 and 8.00 rates 70.00 and 80.00% with attractant rates13.30 and 20.30 % as it balance rates reached -33.00 and -60.00% after 15 and 30 minutes of treating reached maximum at 1.5%, while Cypress cones oil showed significant attractant effect, the concentration 1.5% recorded highest rates of attractant, the average of individuals attractant reached 5.00 and 7.66% rates 50.00 and 76.60% and repellent rates 13.30 and 16.60% as it balance rates reached + 36.67 and + 60.00 % after 15 and 30 minutes of treating . ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84646247","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.v20i5.1250
Ahmed A. Al-obedy, Ammar A. AL-Battawy, Omar K. Younus
The variation of the bulk etch rate (VB) of nuclear track detector CR-39 with the normality of the chemical etchant were studied. The removal thickness measurement method is used to determine the bulk etch rate. the detectors were etched by an aqueous solution of NaOH with normalities (4, 5, 6, 7) N at temperature (70±1) oC. It was found that the bulk etch rate is exponentially increasing with the normality of the solution and its values are (0.687, 1.421, 0.954, 2.082) µm/h at normalities (4, 5, 6, 7) N respectively. the relation between the bulk etch rate and the etchant normality was an exponential relation and the results showed good agreement with the results of the others used other normalities and another measurement method.
{"title":"Variation of the Bulk Etch Rate of Nuclear Track Detector CR-39 With the Chemical Etchant Solution Normality","authors":"Ahmed A. Al-obedy, Ammar A. AL-Battawy, Omar K. Younus","doi":"10.25130/tjps.v20i5.1250","DOIUrl":"https://doi.org/10.25130/tjps.v20i5.1250","url":null,"abstract":"The variation of the bulk etch rate (VB) of nuclear track detector CR-39 with the normality of the chemical etchant were studied. The removal thickness measurement method is used to determine the bulk etch rate. the detectors were etched by an aqueous solution of NaOH with normalities (4, 5, 6, 7) N at temperature (70±1) oC. It was found that the bulk etch rate is exponentially increasing with the normality of the solution and its values are (0.687, 1.421, 0.954, 2.082) µm/h at normalities (4, 5, 6, 7) N respectively. the relation between the bulk etch rate and the etchant normality was an exponential relation and the results showed good agreement with the results of the others used other normalities and another measurement method. \u0000 ","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"8 8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83611108","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.v20i4.1225
Taha H. Jassim, Zenah T. Abdulqader, Hiba O. Mousa
In this paper we introduce a new definition is called bi- intuitionistic topological space and from this concept we present some kinds of closed set (semi –closed, pre-closed ,β-closed ,α-closed) setes in bi- intuitionistic topological space, define generalized closed set (sg-closed ,gs-closed ,gp-closed, gα-closed , αg- closed , gβ-closed) sets in bi - intuitionistic topological space and give relationship among them , we introduce the definition of Tgs-space in bi- intuitionistic topological space and from this consept we get new results
{"title":"ON bi- INTUITIONSTIC TOPOLOGICAL SPACE","authors":"Taha H. Jassim, Zenah T. Abdulqader, Hiba O. Mousa","doi":"10.25130/tjps.v20i4.1225","DOIUrl":"https://doi.org/10.25130/tjps.v20i4.1225","url":null,"abstract":"In this paper we introduce a new definition is called bi- intuitionistic topological space and from this concept we present some kinds of closed set (semi –closed, pre-closed ,β-closed ,α-closed) setes in bi- intuitionistic topological space, define generalized closed set (sg-closed ,gs-closed ,gp-closed, gα-closed , αg- closed , gβ-closed) sets in bi - intuitionistic topological space and give relationship among them , we introduce the definition of Tgs-space in bi- intuitionistic topological space and from this consept we get new results","PeriodicalId":23142,"journal":{"name":"Tikrit Journal of Pure Science","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89322599","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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