PURKH (E-Journals)
Not a member yet
    515 research outputs found

    The Effect of Energy Transportation of High-Energy Electrons on the Electromagnetic Instability

    Get PDF
    The energy transportation of High-energy electrons to the compressed fuel and study of affected factors on it are the most important issues in fast ignition method. In this research, regarding the role of Weibel instability in process modulation and possible impacts of electron and plasma beam velocity to reach higher energy yields, the effect of temporal variation of particle distribution in the presence of laser electric fields on growth andcondition of Weibel instability in beam-plasma medium were investigated in the form of a classic system without any Coulombic collision between the particles and magnetic fields. The results show that the time-dependent drift velocity leads to a decrease the growth rate of the Weibel when energy transportation of energetic particles to the fusion plasma systems increases

    A New Model for Describing Heavy-Light Mesons in The Extended Nonrelativistic Quark Model Under a New Modified Potential Containing Cornell, Gaussian And Inverse Square Terms in The Symmetries Of NCQM

    Get PDF
    In present work, the modified Schrödinger equation (MSE) is analytically solved for the Heavy-Light Mesons (HLM) under modified quark-antiquark potential containing modified Cornell, Gaussian and inverse square terms MCGISTs, in the symmetries of 3-dimensional noncommutative real space phase (NC: 3D-RSP), using the generalized Bopp’s shift method. The energy a spectrum of HLM has been investigated in the framework of extended nonrelativistic quark model ENRQM. Furthermore, the new energy eigenvalues and the corresponding Hamiltonian operator are calculated in (NC: 3D-RSP) symmetries. The masses of the scalar, vector, pseudoscalar, and pseudovector for (,,  and ) mesons have been calculated in (NC: 3D-RSP) and we have shown that the spin-orbital coupling  generated automatically. Moreover, using the perturbation approach, we found that the perturbative solutions of discrete spectrum can be expressed by the parabolic cylinder functions function, Gamma function, the discreet atomic quantum numbers  of the  state and (the spin independent and spin dependent) parameters (), in addition to noncommutativity parameters (and). As a special case this model has been applied to study the S- and P-wave states of,,  and mesons  in NCQM symmetries The total complete degeneracy of new energy levels of HLM was changed to become equals the new value instead  in ordinary quantum mechanics. Our obtained results are in good agreement with the already existing literatures in NCQM.&nbsp

    Environment and Development: Bioenergy for Future

    Get PDF
    People are relying upon oil for primary energy and this will continue for a few more decades. Other conventional sources may be more enduring, but are not without serious disadvantages. The renewable energy resources are particularly suited for the provision of rural power supplies and a major advantage is that equipment such as flat plate solar driers, biomass technologies, wind machines, etc., can be constructed using local resources. Without the advantage results from the feasibility of local maintenance and the general encouragement such local manufacture gives to the buildup of small-scale rural based industry. Biomass is an important material for the sustainable source of energy. It can generate solid, liquid and gaseous products under different Thermochemical conversion technologies. Two products namely, bio-oil and charcoal were produced and their characteristics were analysed. There is a need for some further development to suit local conditions, to minimise spares holdings, to maximise the interchangeability of the engine parts, and of the engine applications. Emphasis should be placed on full local manufacture. It is concluded that renewable environmentally friendly energy must be encouraged, promoted, implemented and demonstrated by a full-scale plant (device) especially for use in remote rural areas. This communication discusses a comprehensive review of biomass energy sources, environment and sustainable development. This includes all the biomass energy technologies, energy efficiency systems, energy conservation scenarios, energy savings and other mitigation measures necessary to reduce emissions globally. The current literature is reviewed regarding the ecological, social, cultural and economic impacts of biomass technology. This study gives an overview of present and future use of biomass as an industrial feedstock for production of fuels, chemicals and other materials. However, to be truly competitive in an open market situation, higher value products are required

    Caffeine as A Catalyst for A Four-Component Synthesis of Dihydropyrano [2, 3-C]Pyrazoles in Water

    Get PDF
    We describe a one-pot four component synthesis of pyrano[2,3-c]pyrazoles from hydrazine hydrate or phenyl hydrazine, ethyl acetoacetate, an aldehyde, and malononitrile in the presence of catalytic amounts of a caffeine as a green catalyst in water at 50 ºC. The present protocol offers the advantages of a clean reaction, a short reaction time, a high product yield, and an environmentally-friendly, easily-purified, and economically-available catalyst

    Interaction Interaction of Trans-Retinol and 1,1-Diamino-2,2-Dinitroethylene (FOX-7)- A DFT Treatment

    No full text
    trans-Retinol is a highly conjugated molecule whose oxidized form trans-retinal has prime importance in the metabolism of vision. On the other hand, 1,1-diamino-2,2-dinitroethylene (FOX-7) is a pull-push type insensitive explosive material. The present study considers the interaction between trans-retinol and FOX-7 molecules at the level of  B3LYP/6-31+G(d).  Some structural, quantum chemical and spectral properties are obtained for the trans-retinol and FOX-7 composite.  The calculations indicate that the mode of interaction in the composites of trans-retinol and FOX-7 in one hand and trans-retinal and FOX-7, on the other hand, is different. In the case of trans-retinol, possibly some orbital interactions happen with FOX-7 additionally

    The Land Use Act of 1978: Proscription of Discrimination Against Fellow Nigerians

    Get PDF
    Having vested the ownership and control of land in the state by section 1, the Land Use Act of 1978 ensures that such land so vested are held in trust for the use and common benefit of all Nigerians. In view of the above provisions, the Land Use Act of the 1978 unlike the existing Land Tenure Law of 1962 facilitated the living together of Nigerians by properly regarding them as ‘Nigerians’ and not ‘natives’. The Act did not start a new brand of apartheid by taking the land of one Nigerian and granting it to another Nigerian without any good reason. However, there are still discriminatory practices indulged in the application of the Act that have resulted in indigene-settler conflicts. This paper examines the Land Use Act of 1978 to see the extent to which it has enhanced the administration of land in Nigeria. In this connection, reforms and innovations introduced by the Act to improve the administration of land are examined. Bearing in mind that every being has its scar, the Act is not without shortcomings. Therefore, this study further beams its search lights in figuring out the inherent problems of the Act and makes recommendations on how to improve the Act

    Introduction To Basho’s Haiku

    Get PDF
    Haiku is a symbolic poem being the shortest in the world [1]. Haiku is literal sculpture by engraving and removing odd parts as much as possible from the original material, but has potential to fill enormous amount of contents regarding to emotion, atmosphere, and/or scenery. Haiku is essentially different from literal architecture, western poetry, consisting of various components that are added during the composition [2].  Haiku consists of 17 syllables, Kireji (or cutting letter), and Kigo (or seasonal word), and is independent of language.   In this letter, after translating a famous Haiku by Basho[1] into English, the literal structure and way how to interpret the Haiku have been introduced and discussed.  The mutual communication between the composer and readers is critical in Haiku, which is always exposed to free criticism and interpretation by readers.   This is due to history of the formation and symbolic nature in the literal structure expressed by a few syllable points.  It is suggested that pointillism plays the vital role not only in Haiku and painting, but also in meanders and turbulence in physics

    Sustainable Health in the Times of SDGs- Voices from the Margins

    Get PDF
    The present chapter reflects on health care availability, utilization and pattern of morbidity in the slum. The first part deals with the general profile of the public health, proximate causes of the ill health, which provides insight about the general profile of the infrastructure and basic amenities position vis a vis slum. The second part is related the health care utilization in slums namely services of the medical institutions, charges of the private medical institutions and clinics, source of treatment, reason for choosing the source of treatment, satisfaction with the treatment, user charge. This section also includes access to the health care services in the slums and the mode of transport used for the utilization of the health care services. The third aspect of the study is related to the pattern of morbidity in slums includes illness in the last month, ailment on the survey date, hospitalisation in one year, average morbidity and hospitalisation rate in one year of three slums, type of ailment, ailment of the head of the household, ailment of the family members, no of days of inactivity and lastly analysis of the common problems and health status of slum dwellers, treatment sought and the proximate reasons for the ailments in slums been done

    Information Dynamics in Baseball

    Get PDF
    This study is concerned with the information dynamics in baseball. This simulates and models the history of professional baseball game Carp vs. Giants in Japan Central League , and provides us useful strategy and/or tactic for coping with the future games, and method for predicting the game outcomes. The game, Carp vs. Giants is quite a unique one, for Giants keeps the advantage against Carp over 90% of the total game length, but is reversed by Carp just before the end. Thus, this game should be called as one-sided game by Giants, though Carp becomes the winner.   It is found that a model curve for height, which initial slope angle coincides with that of data curve, provides the minimum current value of height depending on the time. Usefulness of the information dynamic model for predicting game outcome has been demonstrated: It is predicted in such a way that the author’s granddaughter in 10 years old on August 13, 2018 will increase her height in 10 years from 127.5 cm to 167.6 cm

    Gender Differences in Postsecondary Enrollment Rates of Texas Public High School

    Get PDF
    Examined in this study was the degree to which gender differences were present in the postsecondary enrollment of Texas public high school graduates at Texas 2-year public colleges and at 4-year public universities.  Specifically analyzed were the enrollment percentages of males and females for three academic years (i.e., 2012-2013 through 2014-2015) for Texas public high school graduates.  Over the 3-year time period analyzed, statistically significant differences were present in the postsecondary enrollment of Texas public high school graduates by gender.  Female Texas public high school graduates enrolled in both 2-year and 4-year public institutions at a higher rate than their male counterparts.  Moreover, females tended to enroll at 2-year institutions at a higher rate then 4-year institutions.  Implications of these results and recommendations for future research were discussed

    413

    full texts

    515

    metadata records
    Updated in last 30 days.
    PURKH (E-Journals)
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇