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Oriental Journal of Physical Sciences最新文献

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Corrosion-Yesterday, Today and Tomorrow 腐蚀——昨天、今天和明天
Oriental Journal of Physical Sciences Pub Date : 2018-12-25 DOI: 10.13005/OJPS03.02.01
S. Rajendran
{"title":"Corrosion-Yesterday, Today and Tomorrow","authors":"S. Rajendran","doi":"10.13005/OJPS03.02.01","DOIUrl":"https://doi.org/10.13005/OJPS03.02.01","url":null,"abstract":"Corrosion is the deterioration of material when it comes in contact with environment. Corrosion is a spontaneous process; a natural process; a thermodynamically favourable process. Corrosion is considered as the expression of desire of the metal to go back to its original state of ore. Man is made of ashes. He will go back to ashes. Corrosion is like death. It is sure and certain. We are born to die? No! We are born to live; to live happily and making other also happy. However death is unavoidable just like corrosion. We can postpone death. We cannot prevent it. Similarly we can control the rate of corrosion process. We cannot prevent corrosion. This is the philosophy we derive from the history of process of corrosion.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125300339","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}
引用次数: 0
A comparative thermal decomposition kinetics on 1,2-bis(imino-4'-antipyrinyl)ethane and 4-N-(4'-antipyrylmethylidene)aminoantipyrine Cu(II) complexes with varying counter anions 1,2-二(亚氨基-4′-安替比林基)乙烷和4- n -(4′-安替比林基甲基)氨基安替比林铜(II)配合物的热分解动力学比较
Oriental Journal of Physical Sciences Pub Date : 2018-12-25 DOI: 10.13005/OJPS03.02.06
Tesfay Gebretsadik Ashebr, W. Linert, Nayathuparambil Thomas Madhu
{"title":"A comparative thermal decomposition kinetics on 1,2-bis(imino-4'-antipyrinyl)ethane and 4-N-(4'-antipyrylmethylidene)aminoantipyrine Cu(II) complexes with varying counter anions","authors":"Tesfay Gebretsadik Ashebr, W. Linert, Nayathuparambil Thomas Madhu","doi":"10.13005/OJPS03.02.06","DOIUrl":"https://doi.org/10.13005/OJPS03.02.06","url":null,"abstract":"A comparative thermal decomposition kinetic studies of Cu(II) complexes of 1,2-bis (imino-4-antipyrinyl) ethane(GA) and4-N-(4'-antipyrylmethylidene) aminoantipyrine (AA) with a variety of counter anions viz. ClO4-, NO3-, Cl- and Br- has been evaluated by TG analysis. The kinetic parameters activation energy (E), pre-exponential factor (A) and entropy of activation (∆S) were calculated by using Coats–Redfern equation. This study shows that the thermal decomposition kinetics has been controlled by the ligand field as well as the counter anions.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133143193","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}
引用次数: 0
Scientific and Applied Activities for the ChemistryDepartment, College of Science, Al-Nahrain University to Enhance Security and Safety in 2017 2017年nahrain大学理学院化学系加强安保与安全的科学与应用活动
Oriental Journal of Physical Sciences Pub Date : 2018-12-25 DOI: 10.13005/OJPS03.02.10
E. Yousif, Wedad H. Al-Dahhan
{"title":"Scientific and Applied Activities for the ChemistryDepartment, College of Science, Al-Nahrain University to Enhance Security and Safety in 2017","authors":"E. Yousif, Wedad H. Al-Dahhan","doi":"10.13005/OJPS03.02.10","DOIUrl":"https://doi.org/10.13005/OJPS03.02.10","url":null,"abstract":"Chemistry laboratories present more hazards than are typically found in other science laboratories. The Department of Chemistry at the College of Science at Al-Nahrain University aims to establish and develop the concepts of occupational safety and its embodiment through an applied reality aimed at making the work environment safe considering the development of scientific aspects and deepening the safety culture. 2017 was a year of achievements that can be summarized through major trends including the development of laboratory infrastructure, education of safety aspects, scientific support for Iraqi universities, community service in addition to the scientific research activity to teach the department on various safety topics.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125901843","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}
引用次数: 0
New Pathways in Material Science 材料科学的新途径
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.01
A. Boardman
{"title":"New Pathways in Material Science","authors":"A. Boardman","doi":"10.13005/OJPS03.01.01","DOIUrl":"https://doi.org/10.13005/OJPS03.01.01","url":null,"abstract":"","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126340724","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}
引用次数: 1
l-state Solutions of the Relativistic and Non-Relativistic Wave Equations for Modified Hylleraas-Hulthen Potential Using the Nikiforov-Uvarov Quantum Formalism 用Nikiforov-Uvarov量子形式论修正hyleraas - hulthen势的相对论和非相对论波动方程的l态解
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.02
H. Louis, Ita B. Iserom, O. Akakuru, N. A. Nzeata-Ibe, A. Ikeuba, T. Magu, P. I. Amos, Edet O. Collins
{"title":"l-state Solutions of the Relativistic and Non-Relativistic Wave Equations for Modified Hylleraas-Hulthen Potential Using the Nikiforov-Uvarov Quantum Formalism","authors":"H. Louis, Ita B. Iserom, O. Akakuru, N. A. Nzeata-Ibe, A. Ikeuba, T. Magu, P. I. Amos, Edet O. Collins","doi":"10.13005/OJPS03.01.02","DOIUrl":"https://doi.org/10.13005/OJPS03.01.02","url":null,"abstract":"An exact analytical and approximate solution of the relativistic and non-relativistic wave equations for central potentials has attracted enormous interest in recent years. By using the basic Nikiforov-Uvarov quantum mechanical concepts and formalism, the energy eigenvalue equations and the corresponding wave functions of the Klein–Gordon and Schrodinger equations with the interaction of Modified Hylleraas-Hulthen Potentials (MHHP) were obtained using the conventional Pekeris-type approximation scheme to the orbital centrifugal term. The corresponding unnormalized eigen functions are evaluated in terms of Jacobi polynomials.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132659444","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}
引用次数: 18
Improved Estimator of Population Variance Using Measure of Dispersion of Auxiliary Variable 利用辅助变量离散度的改进总体方差估计方法
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.06
M. Khalil, Muhammad Ali, U. Shahzad, M. Hanif, Nasir Jamal
{"title":"Improved Estimator of Population Variance Using Measure of Dispersion of Auxiliary Variable","authors":"M. Khalil, Muhammad Ali, U. Shahzad, M. Hanif, Nasir Jamal","doi":"10.13005/OJPS03.01.06","DOIUrl":"https://doi.org/10.13005/OJPS03.01.06","url":null,"abstract":"This research study is designed to obtain a more precise class of estimators of a population variance by taking advantage of relation between auxiliary variable and study variable. Here a class of new modified ratio type estimators of population variance by using coefficient of variation (CV), standard deviation, mean and median of auxiliary variable. Further empirical study is made to compare bias and mean square error (MSE) of proposed estimators with the existing estimators. Expressions for bias and MSE are obtained. Few secondary data sets are used to check the efficiency of proposed estimators of population variance.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116883019","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}
引用次数: 1
Behavior of Organic Compounds with Different Functional Groups based on Surface Tension, Ramsey-Shields-EÖTVÖS Constants (k), Order of Association (x) and Trouton’s Rule 基于表面张力、Ramsey-Shields-EÖTVÖS常数(k)、缔合顺序(x)和Trouton规则的不同官能团有机化合物的行为
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.10
R. Sanjeev, V. Jagannadham
{"title":"Behavior of Organic Compounds with Different Functional Groups based on Surface Tension, Ramsey-Shields-EÖTVÖS Constants (k), Order of Association (x) and Trouton’s Rule","authors":"R. Sanjeev, V. Jagannadham","doi":"10.13005/OJPS03.01.10","DOIUrl":"https://doi.org/10.13005/OJPS03.01.10","url":null,"abstract":"Hydrocarbons and organic compounds having different functional groups with hetero atoms have shown a discriminative behavior toward surface tension, EÖTVÖS constants (k), order of association (x) and Trouton’s rule. This was explained in terms of associative and non-associative behavior of these compounds.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123145031","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}
引用次数: 1
Formation of OH Groups and Hydrogen Peroxide Molecules on the Tio2 Anatase Surface: Pseudopotential Calculations 二氧化钛锐钛矿表面羟基和过氧化氢分子的形成:赝势计算
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.08
V. Zavodinsky, K. Makarevich, S. V. Pyachin
{"title":"Formation of OH Groups and Hydrogen Peroxide Molecules on the Tio2 Anatase Surface: Pseudopotential Calculations","authors":"V. Zavodinsky, K. Makarevich, S. V. Pyachin","doi":"10.13005/OJPS03.01.08","DOIUrl":"https://doi.org/10.13005/OJPS03.01.08","url":null,"abstract":"The density functional pseudopotential simulation was carried out to study dissociation of the H2O molecule on the TiO2 anatase surface (pure and W doped). Formation and desorption of the OH groups were studied, and it was shown that the adding of tungsten into titanium dioxide leads to reduction of the desorption energy of OH groups from 6.06 eV to 4.74 eV. Creation of the hydrogen peroxide H2O2 molecules was also investigated. Substitution of Ti with W on the TiO2 anatase surface decreases the formation energy of hydrogen peroxide molecules and moves it up to the range of visible sun light. Decrease of the formation energy of free OH groups and H2O2 molecules, which are fissile oxidizers, increases their quantity in water and promotes increase in effectiveness of organic pollutants decomposition.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123024958","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}
引用次数: 0
Detection the Degradation of PS Thin Films Containing Triazole Complexes by FTIR Techniques FTIR技术检测含三唑配合物PS薄膜的降解
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.09
Raghad Haddad, D. Ahmed, W. Al-Dahhan, A. Ahmed, S. Mohammed, E. Yousif
{"title":"Detection the Degradation of PS Thin Films Containing Triazole Complexes by FTIR Techniques","authors":"Raghad Haddad, D. Ahmed, W. Al-Dahhan, A. Ahmed, S. Mohammed, E. Yousif","doi":"10.13005/OJPS03.01.09","DOIUrl":"https://doi.org/10.13005/OJPS03.01.09","url":null,"abstract":"4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol (X) with Ni2+, Cu2+, Zn2+, Cd2+ and Sn2+ has been synthesized also used as PS photostabilizers. In chloroform solvent, these complexes mixed with PS to form modified PS, which involving (0.5 % wt) of complexes were prepared using casting method. At room temperature the intensity of light (6.02×10-9 Ein Dm-3 S-1) and wavelength 365 nm with utilized to irradiate polymeric films. PS films irradiation with UV light led to obvious changes in infrared spectra. The photostabilization activity of these polymeric films was investigated by observation the indices using FTIR spectroscopy.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124358327","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}
引用次数: 2
Elimination of Methylene Blue from Solution Using Modified Scrap Tire 废轮胎改性去除溶液中的亚甲基蓝
Oriental Journal of Physical Sciences Pub Date : 2018-06-25 DOI: 10.13005/OJPS03.01.11
Eman Fadhil Nassar, Dheaa Zageer, Dhuha H. Fadhil, Majid S. Khlaf
{"title":"Elimination of Methylene Blue from Solution Using Modified Scrap Tire","authors":"Eman Fadhil Nassar, Dheaa Zageer, Dhuha H. Fadhil, Majid S. Khlaf","doi":"10.13005/OJPS03.01.11","DOIUrl":"https://doi.org/10.13005/OJPS03.01.11","url":null,"abstract":"The disposal of the waste tires has become a serious problem faced by many countries today, recycling offers a powerful solution to this problem, for example using it as an adsorbent. In this research, we studied the modification of scrap tire by radiation with gamma ray in trichloroacetic acid solution and elucidated the possibility of using it as an adsorbent to remove Methylene Blue dye (MB) from aqueous solution. The effect of various variables, such as time passing, primary concentration of MB, the quantity of adsorbent and PH of the medium was studied in order to obtain the maximum dye removal. Equilibrium time was at 45 min, maximum adsorption was at PH=9. The results showed the scrap tires ability to be modified and the possibility of using it as an available and inexpensive adsorbent, as well as providing a safe disposal of solid waste.","PeriodicalId":299805,"journal":{"name":"Oriental Journal of Physical Sciences","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121399581","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}
引用次数: 1
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