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Supplementary optical solitonic expressions for Gerdjikov–Ivanov equations with three Kudryashov-based methods

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Communications in Theoretical Physics 2024年第12期76卷 3-14页

作者： F A Althrwi A A Alshaery H O Bakodah rahmatullah Ibrahim Nuruddeen Department of Mathematics and Statistics Faculty of Science University of Jeddah Department of Mathematics Faculty of Physical Sciences Federal University Dutse

The present manuscript uses three Kudryashov-based methods to analytically inspect the class of Gerdjikov–Ivanov equations, which comprises the standard Gerdjikov–Ivanov equation and the perturbed Gerdjikov–Ivanov equation. Various optical solitonic solutions have been ***, as the reported solitonic structures happened to be exponential functions, diverse true solitonic solutions can easily be resorted to upon suitably fixing the involving parameters,including mainly the bright and singular solitons. Lastly, the study graphically examined some of the constructed structures, which were then found to portray some interesting known shapes in the theory of solitary waves and nonlinear Schr?dinger equations. Additionally, the Kudryashovindex d has been noted to play a significant role in the propagation of complex waves in the nonlinear media described by Gerdjikov–Ivanov equations.

关键词： Gerdjikov-Ivanov equation Kudryashov-based methods perturbed Gerdjikov-Ivanov equation Schrödinger equations solitonic solutions

Analytical Investigation of Soliton Solutions to Three Quantum Zakharov-Kuznetsov Equations

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Communications in Theoretical Physics 2018年第10期70卷 405-412页

作者： rahmatullah Ibrahim Nuruddeen Khalid Suliman Aboodh Khalid K. Ali Department of Mathematics Federal University Dutse Department of Mathematics Faculty of Science & Technology Omdurman Islamic University Department of Mathematics Faculty of Science & Arts University of Bisha Mathematics Department Faculty of Science Al-Azhar University

In the present paper, the two-dimensional quantum Zakharov-Kuznetsov(QZK) equation, three-dimensional quantum Zakharov-Kuznetsov equation and the three-dimensional modified quantum Zakharov-Kuznetsov equation are analytically investigated for exact solutions using the modified extended tanh-expansion based method. A variety of new and important soliton solutions are obtained including the dark soliton solution, singular soliton solution, combined dark-singular soliton solution and many other trigonometric function solutions. The used method is implemented on the Mathematica software for the computations as well as the graphical illustrations.

关键词： two-dimensional QZK equation three-dimensional QZK equations soliton solutions

Precision position measurement of single atom

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Chinese Optics Letters 2012年第10期10卷 75-78页

作者： Ziauddin rahmatullah Almas Khan Centre for Quantum Physics COMSATS Institute of Information TechnologyIslamabadPakistan Department of Physics Virginia TechBlacksburg VA 24061USA

Atom localization in a five-level atomic system under the effect of three driving fields and one standing wave field is suggested. A spontaneously emitted photon from the proposed system is measured in a detector. Precision position measurement of an atom is controlled via phase and vacuum field detuning without considering the parity violation.

关键词： Precision position measurement of single atom

Ethnobotanical inventory and folk uses of indigenous plants from Pir Nasoora National Park,Azad Jammu and Kashmir

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Asian Pacific Journal of Tropical Biomedicine 2015年第3期5卷 234-241页

作者： Muhammad Shoaib Amjad Muhammad Arshad rahmatullah Qureshi Department of Botany PMAS-University of Arid Agriculture Department of Botany Women University of Azad Jammu and Kashmir

Objective:To document the medicinal and other folk uses of native plants of the area with a view to preserve the ethnobotanical knowledge associated with this ***:The fieldwork was conducted during a period of one *** were collected through a semi-structured questionnaire and interviews with indigenous tribal people and traditional health practitioners residing in the study ***:The present study documented ethnobotanical uses of 104 plant species belonged to93 genera and 51 *** revealed that most of the documented species were used medicinally(78 spp..44.07%).Leaves were found to be the most frequently used part(69 spp..42.86%) for the preparation of indigenous recipes and for ***:The current research contributes significantly to the ethnobotanical *** depicts a strong human-plant *** is an urgent need to further document indigenous uses of plants for future domestication.

关键词： Ethnobotany Pir Nasoora Indigenous knowledge Conservation

Growth Responses of Wheat Cultivars to Rock Phosphate in Hydroponics

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Pedosphere 2009年第3期19卷 398-402页

作者： M. ASHRAF rahmatullah M. A. MAQSOOD S. KANWAL M. A. TAHIR L. ALI Directorate of Land Reclamation Irrigation & Power Department Punjab (Pakistan) Institute of Soil & Environmental Sciences University of Agriculture Faisalabad (Pakistan)

Screening cultivars to grow under conditions of low phosphorus (P) availability and utilize P efficiently from compounds of low solubility in soils may be beneficial to overcome poor plant growth in P-deficient soils. The growth behavior and P utilization efficiency of seven wheat cultivars grown in hydroponics were studied, using rock phosphate as P source. The wheat cultivars grown for 30 days were significantly different in biomass accumulation, P uptake and P utilization efficiency. The dry matter production of all the cultivars was significantly correlated with P uptake, which in turn correlated to the drop in the root medium pH. The ranking of wheat cultivars on the basis of dry matter yield, P uptake and P utilization efficiency was Zamindar 80 > Yecora > C 271 > WL 711 > Barani 83 > PARI 73 > Rohtas. The cultivar Zamindar 80 appeared to possess the best growth potential in P-deficient soils.

关键词： cultivars hydroponics nutrition rockphosphate wheat

Role of secondary metabolites of wild marigold in suppression of Johnson grass and Sun spurge

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Asian Pacific Journal of Tropical Biomedicine 2015年第9期5卷 708-712页

作者： Sehrish Sadia rahmatullah Qureshi Shahida Khalid Brian Gagosh Nayyar Jin-tun Zhang College of Life Sciences Beijing Normal University Department of Botany PMAS University of Arid Agriculture Institute of Plant and Environment Protection National Agricultural Research Center

Objective: To analyze the wild marigold [(Tagetes minuta L.)(T. minuta)] leaf extract with respect to phytochemicals and allelopathic activity. Methods: The aqueous extracts of T. minuta leaves at concentrations of 50%, 75% and 100% were prepared. Preliminary phytochemical analysis was carried out and then allelopathic ef ect of T. minuta on root length, shoot length, germination, fresh and dry weight of Johnson grass and Sun spurge was tested on i lter paper and in ***: Qualitative phytochemical analysis showed the presence of alkaloids, tannins, saponins, l avonoides and terpenoids. The higher concentrations proved to be signii cantly ef ective in reducing almost all the parameters of Sun spurge and Johnson grass in i lter paper bioassay. Supplemented with the soil, all concentrations of leaf extract showed reduction in germination, root and shoot growth, fresh and dry weight of Sun spurge; however, 100% concentration signii cantly reduced the germination of Johnson grass. Conclusions: This study suggests that marigold allelochemicals can be used as an integrated weed management for the production of better crop yield.

关键词： Allelopathy Weed suppression Sun spurge Johnson grass Wild marigold

阿富汗霍斯特市大学生社交媒体成瘾的定量研究

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阿富汗霍斯特市大学生社交媒体成瘾的定量研究

作者： rahmatullah Haand 河北大学

学位级别：硕士

本研究调查了阿富汗霍斯特市大学生的社交媒体成瘾现象。本研究旨在确定学生在一定的时间间隔内使用社交媒体最多的平台,以及他们使用这些社交媒体平台的目的。本研究的主要目的是检验社交媒体成瘾是否存在,以及成瘾程度如何。样本量是... 详细信息

本研究调查了阿富汗霍斯特市大学生的社交媒体成瘾现象。本研究旨在确定学生在一定的时间间隔内使用社交媒体最多的平台,以及他们使用这些社交媒体平台的目的。本研究的主要目的是检验社交媒体成瘾是否存在,以及成瘾程度如何。样本量是由阿富汗霍斯特市谢赫·扎耶德(Shaikh Zayed)大学、帕米尔(Pamir)大学和艾哈迈德·沙阿·阿卜杜利(Ahmad Shah Abdali)大学等三所大学的384名学生计算得出的。本研究采用概率分层随机抽样的方法,向参与者发放了一份35个问题的问卷。本文复制和扩展了金伯利·杨博士的网络成瘾测试法(IAT),以测量学生中的社交媒体成瘾现象。本研究以使用与满足与媒介系统依赖理论为理论框架。调查结果显示,在所有在线平台中,Facebook是使用频率最高的社交媒体平台。社交媒体被用于社交目的,主要是获取新闻和维持关系。除此之外,研究还发现,社交媒体成瘾在受访者中存在不同程度的存在。在不考虑不考虑政治稳定、文化水平低、经济疲软和冲突等情况下,该研究在阿富汗类欠发达国家证实了两种理论。

关键词：社交媒体成瘾大学生欠发达国家使用与满足媒体系统依赖阿富汗

父母参与儿童学习：阿富汗喀布尔小学的个案研究

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父母参与儿童学习：阿富汗喀布尔小学的个案研究

作者： rahmatullah Fetrat 东北师范大学

学位级别：硕士

The parent’s role in in children’s learning,as well as the relationship between,has been of long interest topics to researchers at all levels of public and private *** findings that parental involvement improves educational quality and children’s academic achievement are well *** study titles on parental involvement in children’s learning in public and private primary schools in Kabul city of Afghanistan which is guided by Epstein’s theory of overlapping spheres of influence focused on four types of parental involvement named learning at home,communication,decision making,and *** research approach using a semi-structured interview and open-ended questionnaire employed to collect data from the audience（parents and teachers）.The data were collected remotely by using voice calls and video calls through Whats App and Imo applications and then analyzed *** study finding showed that the involvement of parents in children’s learning in Kabul primary schools regarding to Epstein’s typology of parental involvement is still in limited *** was noted that parents especially in public schools were not involved in decision making and volunteering in a school event and activities as well as there was no communication between parents and school teachers in public ***,the result showed that there were limited similarities between private and public schools only in homebased involvement and quite differences in terms of communicating,decision making,and volunteering between public and private primary schools in ***,the finding discovered that three main factors hinder parents from being actively involved in children’s learning namely parent’s related factors,school-related factors,and childrelated factors which are inclusively reported in findings.

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Amelioration of Salt Stress in Sugarcane (Saccharum officinarum L.) by Supplying Potassium and Silicon in Hydroponics

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Pedosphere 2010年第2期20卷 153-162页

作者： M.ASHRAF rahmatullah R.AHMAD A.S.BHATTI M.AFZAL A.SARWAR M.A.MAQSOOD S.KANWAL University College of Agriculture University of Sargodha Institute of Soil & Environmental Sciences University of Agriculture Department of Crop Physiology University of Agriculture Sugarcane Research Institute Ayub Agricultural Research Institute

A hydroponics experiment was conducted to evaluate the role of potassium (K) and silicon (Si) in mitigating the deleterious effects of NaCl on sugarcane genotypes differing in salt *** salt-sensitive (CPF 243 and SPF 213) and two salt-tolerant (HSF 240 and CP 77-400) sugarcane genotypes were grown for six weeks in 1/2 strength Johnson's nutrient *** nutrient solution was salinized by two NaCl levels (0 and 100 mmol L 1 NaCl) and supplied with two levels of K (0 and 3 mmol L 1) and Si (0 and 2 mmol L 1).Applied NaCl enhanced Na + concentration in plant tissues and significantly (P ≤ 0.05) reduced shoot and root dry matter in four sugarcane ***,the magnitude of reduction was much greater in salt-sensitive genotypes than salt-tolerant *** salts interfered with the absorption of K + and Ca 2+ and significantly (P ≤ 0.05) decreased their uptake in sugarcane *** of K and Si either alone or in combination significantly (P ≤ 0.05) inhibited the uptake and transport of Na + from roots to shoots and improved dry matter yields under NaCl *** uptake,K + /Na + ratios,and Ca 2+ and Si uptake were also significantly (P ≤ 0.05) increased by the addition of K and/or Si to the root *** this study,K and Si-enhanced salt tolerance in sugarcane genotypes was ascribed to decreased Na + concentration and increased K + with a resultant improvement in K + /Na + ratio,which is a good indicator to assess plant tolerance to salt ***,further verification of these results is warranted under field conditions.

关键词： calcium silicate dry matter genotypes potassium nitrate uptake