The purpose of this paper is to provide a new important concept which is minimal -space (denoted by in-space or -space), also given some properties, examples, theorems and the topological property inin-space are discussed. الهدف من هذا البحث هو تقديم مفهوم مهم جديد وهو فضاء minimal -space ونرمز له in-space او -space ,وكدلك اعطينا بعض الامثلة, النظريات و الخاصية التوبولوجية نوقشت.
{"title":"ML(θC)-space in topological spaces","authors":"N. A. Nadhim, H. J. Ali, R. N. Majeed","doi":"10.23851/mjs.v31i1.730","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.730","url":null,"abstract":"The purpose of this paper is to provide a new important concept which is minimal -space (denoted by in-space or -space), also given some properties, examples, theorems and the topological property inin-space are discussed. الهدف من هذا البحث هو تقديم مفهوم مهم جديد وهو فضاء minimal -space ونرمز له in-space او -space ,وكدلك اعطينا بعض الامثلة, النظريات و الخاصية التوبولوجية نوقشت.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"21 1","pages":"64-70"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87550321","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}
This study aimed to extract urease enzyme from available plant source which was broad beans (Vicia faba L.) using aqueous solution in a ratio1:3(w:v) .The crude extract appeared enzyme activity 33.3 U/ml. Results of this study revealed the possibility to precipitate urease enzyme after extraction using different precipitation methods consisted of Acetone precipitation; Alcohol precipitation and Ammonium sulfate precipitation, these ways of urease precipitation gave enzyme activities 74.8; 43.6 and 82.2 U/ml respectively .The enzyme precipitation using 60% saturation ratio of Ammonium sulfate gave the maximum activity of urease precipitation among other precipitation methods. Enzyme characterization appeared the optimum pH of urease activity was 8.0 and gave enzyme activity 93.8U/ml, while the optimum pH of urease stability was 6.0; the enzyme maintains its activity. On the other side the optimum temperature of precipitated urease activity was 50°C and the enzyme activity reached 99.3U/ml while the optimal temperature of urease stability was 40°C ,the precipitated urease maintain 100% of activity. The effect of other factors on urease action were studied also, these are consisted of the storage time of enzyme ,urease maintain its activity for 8days and the activity begun to decline after that time; the effect of time reusability was also revealed that the enzyme could be used for six times and maintain its activity. The influence of different mineral salts on precipitated urease were also recorded ;these salts were CuSO4 , MgSO4, MgCl2,KCl,CaCl2and FeSo4, results appeared that magnesium and calcium salts were activator for the precipitated urease while copper ,potassium and ferrous salts were inhibitor of the precipitated urease. Urea concentration as an enzyme substrate were also examined and results appeared the optimal substrate concentration was 30mM; enzyme activity reached to125.2U/ml.
{"title":"Extraction, precipitation and characterization of urease from Vicia faba L.","authors":"Dalal S. Bedan","doi":"10.23851/mjs.v31i1.555","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.555","url":null,"abstract":"This study aimed to extract urease enzyme from available plant source which was broad beans (Vicia faba L.) using aqueous solution in a ratio1:3(w:v) .The crude extract appeared enzyme activity 33.3 U/ml. Results of this study revealed the possibility to precipitate urease enzyme after extraction using different precipitation methods consisted of Acetone precipitation; Alcohol precipitation and Ammonium sulfate precipitation, these ways of urease precipitation gave enzyme activities 74.8; 43.6 and 82.2 U/ml respectively .The enzyme precipitation using 60% saturation ratio of Ammonium sulfate gave the maximum activity of urease precipitation among other precipitation methods. Enzyme characterization appeared the optimum pH of urease activity was 8.0 and gave enzyme activity 93.8U/ml, while the optimum pH of urease stability was 6.0; the enzyme maintains its activity. On the other side the optimum temperature of precipitated urease activity was 50°C and the enzyme activity reached 99.3U/ml while the optimal temperature of urease stability was 40°C ,the precipitated urease maintain 100% of activity. The effect of other factors on urease action were studied also, these are consisted of the storage time of enzyme ,urease maintain its activity for 8days and the activity begun to decline after that time; the effect of time reusability was also revealed that the enzyme could be used for six times and maintain its activity. The influence of different mineral salts on precipitated urease were also recorded ;these salts were CuSO4 , MgSO4, MgCl2,KCl,CaCl2and FeSo4, results appeared that magnesium and calcium salts were activator for the precipitated urease while copper ,potassium and ferrous salts were inhibitor of the precipitated urease. Urea concentration as an enzyme substrate were also examined and results appeared the optimal substrate concentration was 30mM; enzyme activity reached to125.2U/ml.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"23 1","pages":"9-14"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84839536","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}
Securing information has been the most significant process for communication and data store. Orderly to secure information such as data authentication, data integrity, and confidentiality must be verified based on algorithms of cryptography. Where, the most important part of any encryption algorithms is the key which specifies if the system is strong enough or not. The proposal of this paper is a new method to generate keys based on two kinds of chaos theory in order to improve the security of cryptographic algorithms. The base of this proposal is to investigate a new method for generating random numbers by using the 3D Lorenz system and 2D Henon map. The newly generated keys have successfully passed the National Institute of Standards and Technology (NIST) statistical test suite
{"title":"Key Generation based on Henon map and Lorenz system","authors":"Ansam Sabah Bader, Shaymaa Hameed, Karim Ali","doi":"10.23851/mjs.v31i1.734","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.734","url":null,"abstract":"Securing information has been the most significant process for communication and data store. Orderly to secure information such as data authentication, data integrity, and confidentiality must be verified based on algorithms of cryptography. Where, the most important part of any encryption algorithms is the key which specifies if the system is strong enough or not. The proposal of this paper is a new method to generate keys based on two kinds of chaos theory in order to improve the security of cryptographic algorithms. The base of this proposal is to investigate a new method for generating random numbers by using the 3D Lorenz system and 2D Henon map. The newly generated keys have successfully passed the National Institute of Standards and Technology (NIST) statistical test suite","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"21 1","pages":"41-46"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86155891","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. Hummadi, O. A. M. safauldeen, Amani Abdullah Kumeel, Anaam Musa Hadee, Raghdaa Hameed Honi
The nuclear structure for even-even nuclei estimated by using interacting boson model (IBM-1). Also this program was used to determine energy levels of g- state, energy ratios and electric quadrupole transitions probability B(E2) which have been calculated. Depending on the follow up of energy ground bands (g, β, and γ) . The dynamical symmetry and energy spectrum of selected isotope are determined by B(E2). The electric quadrupole transition probability of the (2 ᶢ +-0 ᶢ +) transitions for Yb (A=164) isotopes with the dynamical symmetry SU(3)- SU(5) from rotational SU(3) to vibrational SU(5). All obtained results of the study were compared with experimental facts and acceptable agreement obtained.
{"title":"Calculate Energy Levels, Energy Ratios and Electric Quadrupole Transition Probability B(E2), of the Even-Even Yb-164 Isotopes Using IBM-1","authors":"S. Hummadi, O. A. M. safauldeen, Amani Abdullah Kumeel, Anaam Musa Hadee, Raghdaa Hameed Honi","doi":"10.23851/mjs.v31i1.606","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.606","url":null,"abstract":"The nuclear structure for even-even nuclei estimated by using interacting boson model (IBM-1). Also this program was used to determine energy levels of g- state, energy ratios and electric quadrupole transitions probability B(E2) which have been calculated. Depending on the follow up of energy ground bands (g, β, and γ) . The dynamical symmetry and energy spectrum of selected isotope are determined by B(E2). The electric quadrupole transition probability of the (2 ᶢ +-0 ᶢ +) transitions for Yb (A=164) isotopes with the dynamical symmetry SU(3)- SU(5) from rotational SU(3) to vibrational SU(5). All obtained results of the study were compared with experimental facts and acceptable agreement obtained.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"116 1","pages":"71-75"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90494430","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}
Analysis of the jet stream is diagnostic over Baghdad for period studies 2012 to 2014 using Radiosonde data and synoptic charts. The source of data is Iraq Meteorological Organization and Seismology (IMOS). Similar way for weather forecasts to identify areas, forecasters show that area has good predictability under jet stream case. The jet stream is happening clearly realized under the climatic conditions like temperature, humidity and geopotential height for upper layer. Two levels 300hPa and 500hPa is the best way to determine the current jet. Maximum frequency of jet stream happened in April and July in 500hPa that equal 13 times and in 300hPa happened 14 times in May. This study showed that the occurrence of cases of the jet stream is becoming increasingly volatile and decreasingly during 2012 and gradually increased in 2014 where that recorded in 2014.
{"title":"Determined Seasonal Variation of Polar Jet Streams over Baghdad City for period 2012-2014","authors":"Ramia M. Mahmood, Ahmed S. A. Hassan","doi":"10.23851/mjs.v31i1.229","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.229","url":null,"abstract":"Analysis of the jet stream is diagnostic over Baghdad for period studies 2012 to 2014 using Radiosonde data and synoptic charts. The source of data is Iraq Meteorological Organization and Seismology (IMOS). Similar way for weather forecasts to identify areas, forecasters show that area has good predictability under jet stream case. The jet stream is happening clearly realized under the climatic conditions like temperature, humidity and geopotential height for upper layer. Two levels 300hPa and 500hPa is the best way to determine the current jet. Maximum frequency of jet stream happened in April and July in 500hPa that equal 13 times and in 300hPa happened 14 times in May. This study showed that the occurrence of cases of the jet stream is becoming increasingly volatile and decreasingly during 2012 and gradually increased in 2014 where that recorded in 2014.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"1 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76362845","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}
This study was conducted in the botanical garden, Department of biology, College of Science/ Mustansiriyah University in from (15 February to 15 March, 2019) under the natural environmental conditions in the greenhouse in order to evaluate the effectiveness of parsley aqueous extract as a promoter for rooting. The study included the use of aqueous extract of a plant Parsley ( Petroselinum crispum ) extract was used in concentrations (1.25, 2.5 g / l), compare with IBA in concentration (100 mg / L) with dipping time 24 hour for all treatments. The cutting stems were included Rosmarinus officinalis , Nerium oleander , Olea europaea , Plumeria alba , Hibiscus rosa , Pelargonium graveolens , and Myrtus communis . The following measurements were taken after 30 days from the beginning of the experiment: rooting percentage, (number and length of roots), number of new (leaves and branches). Plant hormone concentrations, oxidative enzyme activity (SOD, POS) and amino acids were also analyzed for the extract that gave the highest values for all traits. The results showed that there were significant differences between treatments, and indicated that parsley extract in the concentration (2.5 g / L) was more exceeded compared with other treatments. The chemical analysis of parsley extract showed the presence of the hormones IAA, GA3, cytokinin and ABA as well as the highest activity of the antioxidant enzymes (POS and SOD), also the analysis of parsley indicated the presence of several types of amino acids, including Tryptophan, Glutamic acid, alanine, valine, Tyrosine, Phenylalanine Histadine, Ornithine, Arginine and other amino acids. In conclusion, the Parsley extract can be used as promoter rooting for stem cuttings as a new method instead of using plant growth regulators , Replace the IBA which used in the rooting of stem cuttings by some natural extracts which can stimulate the rooting process.
本研究于2019年2月15日至3月15日在穆斯坦西里耶大学理学院生物系植物园进行，在温室自然环境条件下，评估欧芹水提物促进生根的有效性。本研究采用植物欧芹(Petroselinum crispum)水提液，浓度分别为1.25、2.5 g / l，与浓度为100 mg / l的IBA水提液进行比较，浸提时间为24小时。切茎包括迷迭香、夹竹桃、油橄榄、白花、芙蓉、天竺葵和桃金娘。试验开始30天后测定生根率(根数和根长)、新枝数(叶和枝)。对各性状均最高的提取物进行了植物激素浓度、氧化酶活性(SOD、POS)和氨基酸分析。结果表明，不同处理间存在显著差异，且欧芹提取物浓度(2.5 g / L)高于其他处理。化学分析表明，欧芹提取物中含有IAA、GA3、细胞分裂素和ABA等激素，抗氧化酶(POS和SOD)活性最高，并含有色氨酸、谷氨酸、丙氨酸、缬氨酸、酪氨酸、苯丙氨酸、组氨酸、鸟氨酸、精氨酸等多种氨基酸。综上所述，欧芹提取物可作为植物生长调节剂替代植物扦插生根促进剂的新方法，以促进植物扦插生根的天然提取物代替IBA。
{"title":"Evaluation the activity of Petroselinum crispum aqueous extract as promoter rooting for stem cuttings of some plants","authors":"S. Bashir, A. Al-Habib","doi":"10.23851/mjs.v31i1.746","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.746","url":null,"abstract":"This study was conducted in the botanical garden, Department of biology, College of Science/ Mustansiriyah University in from (15 February to 15 March, 2019) under the natural environmental conditions in the greenhouse in order to evaluate the effectiveness of parsley aqueous extract as a promoter for rooting. The study included the use of aqueous extract of a plant Parsley ( Petroselinum crispum ) extract was used in concentrations (1.25, 2.5 g / l), compare with IBA in concentration (100 mg / L) with dipping time 24 hour for all treatments. The cutting stems were included Rosmarinus officinalis , Nerium oleander , Olea europaea , Plumeria alba , Hibiscus rosa , Pelargonium graveolens , and Myrtus communis . The following measurements were taken after 30 days from the beginning of the experiment: rooting percentage, (number and length of roots), number of new (leaves and branches). Plant hormone concentrations, oxidative enzyme activity (SOD, POS) and amino acids were also analyzed for the extract that gave the highest values for all traits. The results showed that there were significant differences between treatments, and indicated that parsley extract in the concentration (2.5 g / L) was more exceeded compared with other treatments. The chemical analysis of parsley extract showed the presence of the hormones IAA, GA3, cytokinin and ABA as well as the highest activity of the antioxidant enzymes (POS and SOD), also the analysis of parsley indicated the presence of several types of amino acids, including Tryptophan, Glutamic acid, alanine, valine, Tyrosine, Phenylalanine Histadine, Ornithine, Arginine and other amino acids. In conclusion, the Parsley extract can be used as promoter rooting for stem cuttings as a new method instead of using plant growth regulators , Replace the IBA which used in the rooting of stem cuttings by some natural extracts which can stimulate the rooting process.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"3 1","pages":"22-30"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76869726","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}
Today the technology age is characterized by spreading of digital images. The most common form of transfer the information in magazines, newspapers, scientific journals and all types of social media. This huge use of images technology has been accompanied by an evolution in editing tools of image processing which make modifying and editing an image is very simple. Nowadays, the circulation of such forgery images, which distort the truth, has become common, intentionally or unintentionally. Nowadays many methods of copy-move forgery detection which is one of the most important and popular methods of image forgery are available. Most of these methods suffer from the problem of producing false matches as false positives in flat regions. This paper presents an algorithm of the Copy-Move forgery detection using the SIFT algorithm with an effective method to remove the false positives by rejecting all key-points in matches list that own a neighbor less than the threshold. The accuracy of the proposed algorithm was 95 %. The experimental results refer that the proposed method of false positives removing can remove false matches accurately and quickly.
{"title":"False Matches Removing in Copy-Move Forgery Detection Algorithms","authors":"Muthana S. Mahdi, S. N. Alsaad","doi":"10.23851/mjs.v31i1.748","DOIUrl":"https://doi.org/10.23851/mjs.v31i1.748","url":null,"abstract":"Today the technology age is characterized by spreading of digital images. The most common form of transfer the information in magazines, newspapers, scientific journals and all types of social media. This huge use of images technology has been accompanied by an evolution in editing tools of image processing which make modifying and editing an image is very simple. Nowadays, the circulation of such forgery images, which distort the truth, has become common, intentionally or unintentionally. Nowadays many methods of copy-move forgery detection which is one of the most important and popular methods of image forgery are available. Most of these methods suffer from the problem of producing false matches as false positives in flat regions. This paper presents an algorithm of the Copy-Move forgery detection using the SIFT algorithm with an effective method to remove the false positives by rejecting all key-points in matches list that own a neighbor less than the threshold. The accuracy of the proposed algorithm was 95 %. The experimental results refer that the proposed method of false positives removing can remove false matches accurately and quickly.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"1 1","pages":"47-53"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89182720","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}
Drought in Iraq was assessed using three drought indices for two different time periods, past period from 1970 to 2015, and future period from 2016 to 2050 for 4 stations in Iraq. These indices named: the Standardized Precipitation Index (SPI), Percentage of Precipitation Anomaly (PPA), and Z-Score Index (ZSI). The main sources of data were the monthly rainfall archive from Iraqi Meteorological Organization and Seismology (IMOS) for past period, and projection monthly precipitation data from Representative Concentration Pathway scenario (RCP4.5) for Fifth Assessment Report (AR5) affiliate to the Intergovernmental Panel on Climate Change (IPCC) for future period. The results shown good correlation of among 3 indices, with different rank of them, were lowest rank was 0.85. The three indices refer to were good evaluate the drought severity of Iraq. Found too the best index was PPA during past period, and the significant index was ZSI for the future period. The North of Iraq (Mosul Station) was the least vulnerable to drought from the analysis of the results of the three indices for the last period, where the number of dry seasons were 12 on the basis of the PPA classification. South of Iraq (Basra station) has the highest number of wet season on the PPA rating were (15) season.
{"title":"Comparison of Some Drought Indices in Iraq","authors":"Usama S. Nedham, Ahmed S. A. Hassan","doi":"10.23851/mjs.v30i4.674","DOIUrl":"https://doi.org/10.23851/mjs.v30i4.674","url":null,"abstract":"Drought in Iraq was assessed using three drought indices for two different time periods, past period from 1970 to 2015, and future period from 2016 to 2050 for 4 stations in Iraq. These indices named: the Standardized Precipitation Index (SPI), Percentage of Precipitation Anomaly (PPA), and Z-Score Index (ZSI). The main sources of data were the monthly rainfall archive from Iraqi Meteorological Organization and Seismology (IMOS) for past period, and projection monthly precipitation data from Representative Concentration Pathway scenario (RCP4.5) for Fifth Assessment Report (AR5) affiliate to the Intergovernmental Panel on Climate Change (IPCC) for future period. The results shown good correlation of among 3 indices, with different rank of them, were lowest rank was 0.85. The three indices refer to were good evaluate the drought severity of Iraq. Found too the best index was PPA during past period, and the significant index was ZSI for the future period. The North of Iraq (Mosul Station) was the least vulnerable to drought from the analysis of the results of the three indices for the last period, where the number of dry seasons were 12 on the basis of the PPA classification. South of Iraq (Basra station) has the highest number of wet season on the PPA rating were (15) season.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"16 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78828291","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 research, quality control and homogeneity tests were performed for 20 surface meteorological stations records in Iraq. For this purpose, the annual precipitation data series at the stations of Iraqi meteorological organizations and seismology for the period (1981-2010) were considered. Quality control procedure involving outlier detection using Mandel’s k method. Homogenization were analyzed by using four absolute methods tests namely SNH test, Pettitt test, BR test and VNR test, these tests were chosen to detect the inhomogeneity in data, the results of each test were evaluated at significance level 0.05. Results of Mandel’s K methodwere classified into four categories (Normal, Abnormal 1, Abnormal 2 and Extreme) and represented in GIS software.The results showed that 5 % of station classified as Normal, 20% of stations classified as Abnormal 1, 25% of stations classified as Extreme and 50% of stations were classified as Abnormal 2. The homogeneity tests results displayed that 5% of station assigned as “doubtful” class with break years found in (1998) for (Pettitt and BR) tests, 50% of stations assigned as “useful” class , and the other stations which represent 45% assigned as “suspect” class with break years detected for (Pettitt, SNH and BR) tests most found in (1998 ad 1999) were represents 28% of break years, 21% of break years found in (1997) and other break years found between (1991-2004).
{"title":"Quality Control of Precipitation Measurement for Selected Stations in Iraq","authors":"Ali J. Jaafar, A. Al-Lami","doi":"10.23851/mjs.v30i4.715","DOIUrl":"https://doi.org/10.23851/mjs.v30i4.715","url":null,"abstract":"In this research, quality control and homogeneity tests were performed for 20 surface meteorological stations records in Iraq. For this purpose, the annual precipitation data series at the stations of Iraqi meteorological organizations and seismology for the period (1981-2010) were considered. Quality control procedure involving outlier detection using Mandel’s k method. Homogenization were analyzed by using four absolute methods tests namely SNH test, Pettitt test, BR test and VNR test, these tests were chosen to detect the inhomogeneity in data, the results of each test were evaluated at significance level 0.05. Results of Mandel’s K methodwere classified into four categories (Normal, Abnormal 1, Abnormal 2 and Extreme) and represented in GIS software.The results showed that 5 % of station classified as Normal, 20% of stations classified as Abnormal 1, 25% of stations classified as Extreme and 50% of stations were classified as Abnormal 2. The homogeneity tests results displayed that 5% of station assigned as “doubtful” class with break years found in (1998) for (Pettitt and BR) tests, 50% of stations assigned as “useful” class , and the other stations which represent 45% assigned as “suspect” class with break years detected for (Pettitt, SNH and BR) tests most found in (1998 ad 1999) were represents 28% of break years, 21% of break years found in (1997) and other break years found between (1991-2004).","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"9 2 1","pages":"10-17"},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78696044","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}
Sol-gel deposition of spinel ferrite MgZnFe 2 O 4 on glass substrate using pulsed- laser ablation method was investigated. The magnetic properties were studied without the addition of any adhesive or fixative. Two samples of thicknesses of (585 nm and 265 nm) ±20 were fabricated. The microwave absorption of the samples was measured at X -band within a frequency range of (8-12.5GHz). The frequency absorption and its relationship with the thickness are addressed.
{"title":"Magnetic Properties of the Spinel Ferrite MgZnFe2O4 Deposited on Glass Using Pulsed-Laser Ablation Method","authors":"T. H. Lazem, K. Kadhim, I A Atheer","doi":"10.23851/mjs.v30i4.699","DOIUrl":"https://doi.org/10.23851/mjs.v30i4.699","url":null,"abstract":"Sol-gel deposition of spinel ferrite MgZnFe 2 O 4 on glass substrate using pulsed- laser ablation method was investigated. The magnetic properties were studied without the addition of any adhesive or fixative. Two samples of thicknesses of (585 nm and 265 nm) ±20 were fabricated. The microwave absorption of the samples was measured at X -band within a frequency range of (8-12.5GHz). The frequency absorption and its relationship with the thickness are addressed.","PeriodicalId":7515,"journal":{"name":"Al-Mustansiriyah Journal of Sciences","volume":"30 1","pages":"103-106"},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76359689","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：