Advances in Physics Theories and Applications最新文献_第3页

Investigating Muonic Hydrogen Atom Energy Spectrum Using Perturbation Theory in Lowest Order 用最低阶微扰理论研究介子氢原子能谱

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/83-02

Firew Meka

{"title":"Investigating Muonic Hydrogen Atom Energy Spectrum Using Perturbation Theory in Lowest Order","authors":"Firew Meka","doi":"10.7176/apta/83-02","DOIUrl":"https://doi.org/10.7176/apta/83-02","url":null,"abstract":"This work presents a quantum mechanical calculation of corrections in energy levels of muonic hydrogen atom using a potential due to finite size proton. Muonic hydrogen (μ-p) is an exotic atom in which the muon (μ − ) replaces the electron \"orbiting around\" the proton in normal atomic hydrogen. Corrections in energy levels of Muonic hydrogen atom are calculated using a potential due to finite size proton. This Thesis analyzes the implications of Muonic hydrogenic atoms compared to standard hydrogenic atoms. These calculations are performed with Schrodinger wave functions with Coulomb potential using perturbation theory. The finite size of proton gives values of Lamb shift higher than that of point charge. The fine structure correction is very small compared to the Lamb shift values of Muonic hydrogen as we can see from the literature review. Therefore, as we have seen through all the above calculation of 1s, 2s and 2p, the application of perturbation theory has shown us that the energy correction is very small at each state. So the perturbation at higher order become small and small compared to the zero order at each state and even it can be ignored for higher orders. From this we can say that the interaction of electron with proton at higher state will be low which justifies that proton is not a large spherical shaped but it has finite size. Keywords: coulomb potential; Point proton; Finite size proton; muonic hydrogen atom; Energy levels corrections; Lamb shift. DOI : 10.7176/APTA/83-02 Publication date: February 29 th 2020","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":"26 1","pages":"7-21"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78460152","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: 3

Effect of Automotive Gas Oil (AGO) on Geotechnical Properties of Lateritic Soil 车用汽油对红土岩土力学性质的影响

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/82-03

A. Akankpo, E. Umoren

{"title":"Effect of Automotive Gas Oil (AGO) on Geotechnical Properties of Lateritic Soil","authors":"A. Akankpo, E. Umoren","doi":"10.7176/apta/82-03","DOIUrl":"https://doi.org/10.7176/apta/82-03","url":null,"abstract":"Environmental pollution from petroleum and petrochemical products has been recognized as one of the most serious problems associated with accidental spills on a large scale. This study was carried out to investigate the effect of automotive gas oil (ago) on geotechnical properties of lateritic soil. Test carried out included Optimum Moisture Content, Maximum Dry Density, Sieve Analysis, Liquid Limits, Plastic Limits, Plasticity Index, Specific Gravity and Unconfined Compressive Test. Certain percentages of AGO (0 %, 4 %, 8 %, 12 %, 16 %) were mixed with the lateritic soil sample. Based on the results obtained, Optimum Moisture, Maximum Dry Density, specific gravity and unconfined compressive test decreased as the percentage of automotive gas oil (AGO) increased, while Atterberg limits and Sieve analysis increased as the percentage of automotive gas oil (AGO) increased. Addition of AGO to the soil led to the reduction of porosity and permeability resulting from the entrapment of the AGO within the pore spaces of the soil. Keywords: Automotive Gas Oil, Geotechnical Properties, Lateritic Soil, Contaminants DOI : 10.7176/APTA/82-03 Publication date: January 31 st 2020","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84079012","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

Comparative Studies of the Optical Absorbance and Structural Properties of Ironcopper Sulphide(CuS-Fe) and Iron Lead Sulphide(PbS-Fe) Thin Films Deposited by Silar Method 类似方法沉积的硫化铜铁(cu - fe)和硫化铅铁(PbS-Fe)薄膜的吸光度和结构性能比较研究

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/82-04

V. N. Udeajah, D. Onah

{"title":"Comparative Studies of the Optical Absorbance and Structural Properties of Ironcopper Sulphide(CuS-Fe) and Iron Lead Sulphide(PbS-Fe) Thin Films Deposited by Silar Method","authors":"V. N. Udeajah, D. Onah","doi":"10.7176/apta/82-04","DOIUrl":"https://doi.org/10.7176/apta/82-04","url":null,"abstract":"The influence of iron on lead sulphide(PbS) and Copper Sulphide (CuS) thin films deposited on glass substrates via successive ionic layer adsorption (SILAR) Technique using lead acetate, Pb(CH 3 COO) 2 , Cupric Acetate Cu(CH 3 COO) 2 , thioacetamide ( S 2 H 5 NS) , Iron (II) Chloride dehydrate(Fe Cl 2 . 2H 2 O), ethanol and ammonia by in alkaline medium annealed between 283K and 500K was investigated. The structural and morphological studies were performed by X-ray diffraction (XRD) Analysis and scanning electron microscopy(SEM) respectively. The Uv-visible studies were done using spectrometer in the Technical University, Ibadan. The XRD showed films of cubic crystalline PbS thin films, cubic and face-centred crystalline PbSFe thin films, cubic CuS thin film, hexagonal Cu 2 S thin films and cubic and hexagonal crystalline natured CuSFe thin films with the preferential (111),(002)(004) (311) orientations. Keywords : Copper Sulphide thin Films: Lead Sulphide thin Films: Absorbance: structural properties DOI : 10.7176/APTA/82-04 Publication date: January 31 st 2020","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73047519","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 Insights on Time and Quantum Gravity 关于时间和量子引力的新见解

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/83-08

O. Oztekin

{"title":"New Insights on Time and Quantum Gravity","authors":"O. Oztekin","doi":"10.7176/apta/83-08","DOIUrl":"https://doi.org/10.7176/apta/83-08","url":null,"abstract":"According to Einstein, a universal time does not exist. But what if time is different than what we think of it? Cosmic Microvawe Background Radiation was accepted as a reference for a universal clock and a new time concept has been constructed. According to this new concept, time was tackled as two-dimensional having both a wavelength and a frequency. What our clocks measure is actually a derivation of the frequency of time. A relativistic time dilation actually corresponds to an increase in the wavelength of time. At the point where time wavelength and time frequency is equal, where light is positioned, quantum-world and macro-world are seperated. Gravity was redefined with respect to time and the new two dimensional time fabric of the universe was speculated to be the source of dark energy causing the universe to expand. According to this new point of view quantum realm and macro-world can be better understood. This new time concept provide a basis for our understanding of quantum gravity and provide the long-sought answers to well known problems of it. A prediction of the presented theory is that the universe will expand at various rates at different regions due to the fact that particular surroundings will create different gravities and cause a different gravity- time wavelength effect yielding various time delays for calculating this rate of expansion. Keywords: General Relativity, Gravitation, Time and frequency, Quantum mechanics DOI : 10.7176/APTA/83-08 Publication date : May 30 th 2020","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":"156 1","pages":"53-62"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78062989","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

Ionic Wind Drying for Leaves of Andrographis Paniculata Bush Plant 离子风干燥穿心莲灌木植物叶片的研究

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/83-04

Sumariyah, A. Khuriati, S. H. Pratiwi, E. Fachriyah

引用次数: 0

Tachyons Particles as a Paradigm for the Existing of the Status of Quantum Metaphysics 速子粒子:量子形而上学地位存在的范式

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/82-02

K. Belew

{"title":"Tachyons Particles as a Paradigm for the Existing of the Status of Quantum Metaphysics","authors":"K. Belew","doi":"10.7176/apta/82-02","DOIUrl":"https://doi.org/10.7176/apta/82-02","url":null,"abstract":"As many scientists wrote repeatedly, quantum mechanics is a naturalistic theory and it flourished in 1920s, so as to solve physical problems through empirical experiment. It is the most vivacious empirical science to explain cosmological puzzles for the last one hundred years consistently. Philosophers of physics evidently argue that the nature of quantum mechanics (sometimes so-called quantum theory or physics) in physics can be associated with the coming of logical positivism (empiricist philosophy) on the philosophy segment. As history of physics showed quantum physics is a one among the many scientific theories which is the most fruitful and applied over. Though scientists were raised intentionally or unintentionally metaphysical questions, but they applied quantum mechanical stance. Accordingly, till 20 th c physicists were simply defending on experiment based reality only (but failed)! However, mid-20 th century later theoretical physicists have changed this experimental physics and it follows revolutionized science. Therefore, there was a paradigm shift from the quantum mechanics stance to quantum metaphysics posture because the revolution in physics is not only to review and reading about the physical world, but also the world of metaphysics too. Thus, in modern societies, a strange and new theoretical quantum science was developed in 1967’s by Gerald Feinberg, so called quantum metaphysics which can justify through Tachyon particles so as to realize metaphysical mien. Based on quantum physics postures, Feinberg puts forward an assumption of quantum metaphysics and Tachkyonic particles in general. Keywords: Quantum Physics, Physics, Metaphysics, Quantum Metaphysics, Tachyons, Feinberg DOI : 10.7176/APTA/82-02 Publication date: January 31 st 2020","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80979185","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

Quantum Natures of Single-Mode Displaced Squeezed Vacuum State 单模位移压缩真空态的量子性质

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/82-01

A. Getahun

引用次数: 0

Stopping of Slow Hydrogen Dicluster by Different Solid Materials 不同固体材料对慢氢双聚的抑制作用

Advances in Physics Theories and Applications Pub Date : 2020-01-01 DOI: 10.7176/apta/82-05

M. Akraa, Khalid A. Ahmed, I. Al-Alawy

引用次数: 0

Electrical and Structural Properties of Polystyrene/Graphite Composite by Direct Mixing Method 直接混合法制备聚苯乙烯/石墨复合材料的电学和结构性能

Advances in Physics Theories and Applications Pub Date : 2019-12-01 DOI: 10.7176/apta/81-03

S. Ezeonu, E. Ogonnaya, C. Nweze

引用次数: 3

Statistical Properties of Single-Mode Displaced Squeezed Vacuum State 单模位移压缩真空态的统计特性

Advances in Physics Theories and Applications Pub Date : 2019-12-01 DOI: 10.7176/apta/81-02

Ruth Birhanu

引用次数: 0