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Developing a Computational Syntax of Sindhi Language in Lexical Functional Grammar Framework 在词法功能语法框架下发展信德语计算语法
Pub Date : 2017-12-19 DOI: 10.26692/SURJ/2017.12.49
M. U. Rehman, H. U. Kazi
Sindhi language lacks computational linguistics resources for deep syntactic analysis. This paper presents a work on computational morphology and grammar development of Sindhi Language. An LFG (Lexical Functional Grammar) based model for Sindhi grammar is developed where morphological constructions are modeled in Xerox Lexicon Compiler (LEXC), and syntactic constructions are modeled in LFG by using Xerox Linguistic Environment (XLE). While developing morphology and syntax of Sindhi, different part of speech classes, phrase structures, tense, aspect, mood and agreement are considered wherever applicable. The developed computational grammar is tested against two different test suites. First test suite contains 617 handcrafted sentences in 10 different test files containing sentences with different syntactic features. Second test suite contains real time corpus of two text books of Sindhi class one with 258 sentences. Results show 98.05% and 96.5% parsing percentage of test suite 1 and test suite 2 respectively.
信德语缺乏深度句法分析的计算语言学资源。本文介绍了一项关于信德语计算形态学和语法发展的工作。提出了一种基于词法功能语法(LFG)的信德语语法模型,其中词法结构在Xerox Lexicon Compiler (LEXC)中建模,句法结构在Xerox Linguistic Environment (XLE)中建模。在发展信德语的形态和句法时,考虑到不同的词类、短语结构、时态、相位、语气和一致性。开发的计算语法针对两个不同的测试套件进行测试。第一个测试套件在10个不同的测试文件中包含617个手工制作的句子,这些测试文件包含具有不同语法特征的句子。第二个测试套件包含两本信德语一级教材的实时语料库,共258个句子。结果显示,测试套件1和测试套件2的解析率分别为98.05%和96.5%。
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引用次数: 0
Harmonics compensation in industrial power network using Hybrid Active Power Filter (HAPF) in d-q frame 基于d-q帧的混合有源电力滤波器(HAPF)在工业电网中的谐波补偿
Pub Date : 2017-12-19 DOI: 10.26692/SURJ/2017.12.76
S. Katyara, M. Shah, L. Staszewski, J. Soomro
In AC power networks, the use of harmonic and reactive power compensations through active power filters has become emerging aspect of today’s commercial market. With the advancement of new technologies, loads based on power electronics are regularly being used in low and medium voltage distribution systems, which eventually cause the harmonics in the system currents and voltages. The most dangerous harmonics are the later i-e, 3rd , 5th , 7th and so on, which are basically result of current harmonics. They cause degradation in the performance and working of other important power system equipment. In order to mitigate these daunting harmonics, the best option is to use the hybrid power filters which combine the characteristics of both active and passive harmonic filters al-together. The main idea of this research is to model an industrial network and to perform an analysis over the Total Harmonic Distortion (THD) in the power system. The use of Hybrid Active Power (HAPF) kept the THD value well below 8%, as recommended by European Standard EN50160. With the implementation of HAPF, an additional advantage of power factor improvement was also achieved. PQ theorem was used for calculating parameters of hysteresis control used for filter implementation. Results presented in the research paper confirm the efficiency of designed filter because the THDs of both voltage and current were restricted to 2% and the system power factor was improved too. The major contribution of this research is that power quality was improved most economically using P-Q technique through HAPF.
在交流电网中,通过有源滤波器进行谐波和无功补偿已成为当今商业市场的新兴方面。随着新技术的发展,基于电力电子的负荷经常被应用于中低压配电系统中,这最终会导致系统电流和电压中的谐波。最危险的谐波是后面的i-e、3、5、7等,它们基本上是电流谐波的结果。它们会降低电力系统其他重要设备的性能和工作性能。为了减轻这些令人生畏的谐波,最好的选择是使用混合电力滤波器,它结合了有源和无源谐波滤波器的特性。本研究的主要思想是建立一个工业网络模型,并对电力系统中的总谐波失真(THD)进行分析。根据欧洲标准EN50160的建议,混合有源电源(HAPF)的使用使THD值远低于8%。随着HAPF的实施,功率因数的改善也获得了额外的优势。采用PQ定理计算用于滤波实现的滞后控制参数。研究结果证实了所设计滤波器的效率,因为电压和电流的THDs都被限制在2%以内,并且系统功率因数也得到了改善。本研究的主要贡献是通过HAPF使用P-Q技术最经济地改善了电能质量。
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引用次数: 1
A Pivot Rule for Maximization Degeneracy Problems of Simplex Method for Linear Programming Problems 线性规划问题中单纯形法最大退化问题的枢轴准则
Pub Date : 2017-12-19 DOI: 10.26692/Surj/2017.12.40
R. K. Menghwar, F. Shaikh
The simplex algorithm is a powerful technique, widely used to find the optimal solution of linear programming problems. Pivot rule is the most important first step of the simplex algorithm in the maximization degeneracy problems of LP for selecting the entering variable/work column (to obtain the smallest ratios) and after than leaving variable for pivot equation. The selection of an effective pivot rule leads the smallest number of iterations of the optimal solution of L.P. The selecting of most negative number (for entering variable) in the maximization problems is known as G.B Dantzig's pivot rule. The purpose of this paper is to model an algorithm that improves in the entering and leaving variable for the maximization degeneracy problems of LP. In this article, we have introduced a powerful technique for pivot rule which reduces the number of iterations to obtain the optimal solution as compare to Dantzig’s pivot rule. This article gives better concept of selection the entering variable as well leaving variable. This article also gives a helpful imminent into the unique and constructive performance of the proposed method by coverage computational experiments.
单纯形算法是一种强大的算法,被广泛用于求解线性规划问题的最优解。选取输入变量/工作列(以获得最小的比率)和离开变量后的单形算法在求解LP最大退化问题中最重要的第一步是Pivot规则。选取有效的枢轴规则使L.P.的最优解迭代次数最少,在最大化问题中选取最多的负数(输入变量)称为g.b.d antzig枢轴规则。本文的目的是建立一种改进LP最大退化问题的进入和离开变量的算法。在本文中,我们介绍了一种强大的枢轴规则技术,与Dantzig枢轴规则相比,它减少了获得最优解的迭代次数。本文给出了更好的选择进入变量和离开变量的概念。本文还通过覆盖计算实验对该方法的独特和建设性性能进行了有益的探讨。
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引用次数: 0
The Attenuation of Free Space Optical Communication under Dusty Conditions in Lahore 拉合尔沙尘条件下自由空间光通信的衰减
Pub Date : 2017-12-19 DOI: 10.26692/Surj/2017.12.75
S. M. Yasir, M. T. Mushtaq, M. S. Khan, W. A. Salam, M. Ehsan, H. Nawaz
FSO (free space optical) communication is one of the most advanced modes of wireless communication. FSO is a line of sight communication which is used to convey data from an optical transmitter to an optical receiver through atmosphere. FSO offers higher data rates but fading level due to atmospheric effects (like sand, dust, fog, rain, snow etc.) are higher than RF (radio frequency) technology. The atmosphere affects the laser beam passing through it. The atmospheric turbulence and scattering results in the degradation of the signal. In this research paper is focused and analyzes the variations in the visibility and attenuation with respect to the concentration of aerosol particles (suspended elemental particles) is done. This research work is conducted and dust model is designed in the atmosphere of urban area of Lahore city. The model deals the effect of the size of the dust particles on the visibility of FSO link and suggests a formula for the calculation of attenuation generated in the link.
自由空间光通信是最先进的无线通信方式之一。FSO是一种视距通信,用于通过大气将数据从光发射机传输到光接收机。FSO提供更高的数据速率,但由于大气影响(如沙子,灰尘,雾,雨,雪等)的衰落水平高于RF(射频)技术。大气影响穿过它的激光束。大气的湍流和散射导致了信号的退化。本文着重分析了能见度和衰减随气溶胶粒子(悬浮元素粒子)浓度的变化规律。本文进行了研究工作,并设计了拉合尔市区大气扬尘模型。该模型考虑了尘粒大小对FSO链路能见度的影响,并给出了链路衰减的计算公式。
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引用次数: 2
Effect of Watercourse Lining on Water Distribution (Warabandi) in the Command Area of Laiqpur Ex Ali Bahar Minor, District Sujawal, Sindh, Pakistan 巴基斯坦信德省Sujawal地区laqpur Ex Ali Bahar Minor指挥区河道衬砌对水分布(Warabandi)的影响
Pub Date : 2017-12-19 DOI: 10.26692/Surj/2017.12.62
Nabi Bux Bhatti, Abdul Latif Qureshi, G. S. Solangi, S. Panhwar
A study was carried out to evaluate the impact of watercourse lining on water distribution (warabandi).For this study two watercourses, one lined (8-CL) and other unlined (11-R) of Laiqpur ex-Ali Bahar Minor were selected.The Theil’s Index was calculated on the basis of various parameters such as NIA (Net Irrigated Area), NWA (Net Wetted Area), CCA (Cultivable Command Area) and frequency of irrigation, actual TWA (Total Wetted Area) and predicted TWA (Total Wetted Area) and found as 0.22 and 0.496 for lined and unlined watercourses respectively. Hence, the effectiveness of warabandi was found as 78 and 50.4% for lined and unlined water courses respectively. The Theil’s Index values for head (31.07 acres), middle (31.76 acres) and tail (28.35 acres) sections of one lined and two unlined sections of the lined watercourse were determined as 0.147, 0.165 and 0.319 respectively, however for unlined watercourse, the Theil’s Index values were 0.21 (head), 0.5 (middle) and 0.6 (tail). This showed that in a lined section of the watercourse No. 8-CL, the effectiveness of warabandi was 85%, at its tail section it was 68% and that for tail section of the earthen w/c was only 40%. Variation of TIC in lined and unlined watercourse was 0.17 and 0.38 respectively. The conveyance loss per 1000 ft. in lined and unlined sections of watercourse 8-CL was 1.23% and 4.92% respectively, however in watercourse 11-R that was 4.9%. The conveyance efficiency in lined and unlined sections of the lined watercourse was98.76 and 90.60% and that for earthen watercourse was 70.59% and after lining, the cropping intensity increased up to 8%.
对河道衬砌对河道配水的影响进行了评价。本研究选择了莱齐普尔前阿里巴哈河的两条河道,一条为衬砌(8-CL),另一条为未衬砌(11-R)。根据净灌溉面积(NIA)、净湿润面积(NWA)、可耕种指挥面积(CCA)、灌溉频率、实际总湿润面积(TWA)和预测总湿润面积(TWA)等参数计算泰尔指数(Theil’s Index),衬砌和未衬砌河道的TWA分别为0.22和0.496。因此,瓦拉班迪对有衬砌河道和无衬砌河道的有效性分别为78%和50.4%。确定了衬砌河道一段和两段无衬砌河道的首段(31.07亩)、中段(31.76亩)和尾段(28.35亩)的Theil’s指数分别为0.147、0.165和0.319,而无衬砌河道的Theil’s指数分别为0.21(头)、0.5(中)和0.6(尾)。结果表明,在8-CL号水道的衬砌段,瓦拉班迪的有效性为85%,在尾段为68%,而在土坝尾段w/c的有效性仅为40%。有衬砌和无衬砌河道的TIC变化分别为0.17和0.38。8-CL水道有衬砌段和无衬砌段每1000英尺的输送损失分别为1.23%和4.92%,而11-R水道为4.9%。衬砌河道和未衬砌河道的输水效率分别为98.76和90.60%,土质河道的输水效率为70.59%,衬砌后种植强度提高了8%。
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引用次数: 1
VBEML: Virtual Breeding Environment Modeling Language 虚拟育种环境建模语言
Pub Date : 2017-12-19 DOI: 10.26692/SURJ/2017.12.51
S. Pathan, N. J. Rajper, H. A. Nizamani
This paper presents Virtual breeding Environment modeling language (VBEML). A Virtual Breeding Environment (VBE) needs to be modeled in order to understand its complex composition and behavior. There is no modeling language dedicated to the specification of VBE The VBEL allows to define the basic structure of a VBE, its constituent elements and other details which define the essential structure of a VBE .
提出了虚拟育种环境建模语言(VBEML)。为了了解虚拟育种环境的复杂组成和行为,需要对其进行建模。没有专门用于VBE规范的建模语言。VBEL允许定义VBE的基本结构,其组成元素和其他定义VBE基本结构的细节。
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引用次数: 0
Robust Speech Recognition Using Adaptive Noise Cancellation 基于自适应噪声消除的鲁棒语音识别
Pub Date : 2017-12-19 DOI: 10.26692/SURJ/2017.12.78
M. Waqas, M. A. Khan, M. Naeem, Asma Gul, Nasir Ahmad
This paper introduces the adaptive noise cancellation technique for the noise reduction in Robust Automatic Speech Recognition. The adaptive noise cancellation is used as front-end stage to enhance the extracted features for speech recognition under noisy conditions. More specifically, the Constrained Stability Least Mean Square (CS-LMS) algorithm which is a member of the family of adaptive filters has been applied. The Hidden Markov Model based Tool Kit (HTK) is used for training and testing the Automatic Speech Recognizer system. The result obtained shows that the application of adoptive filtering at the front-end enhances the performance of the system in noisy conditions while the CS-LMS algorithm gives the most superior performance among the family of LMS algorithms.
介绍了鲁棒自动语音识别中的自适应降噪技术。采用自适应噪声消除作为前端,增强提取的特征,用于噪声条件下的语音识别。具体地说,采用了约束稳定最小均方(CS-LMS)算法作为自适应滤波器族的一员。基于隐马尔可夫模型的工具包(HTK)用于自动语音识别系统的训练和测试。结果表明,在前端应用自适应滤波可以提高系统在噪声条件下的性能,而CS-LMS算法在LMS算法族中具有最优的性能。
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引用次数: 0
Effect of bi-solvents on the Morphology of CuO Nanostructures Using Soft Template 双溶剂对软模板CuO纳米结构形貌的影响
Pub Date : 2017-12-19 DOI: 10.26692/SURJ/2017.12.71
M. A. Kalhoro, Z. Ibupoto, A. Chandio, K. A. Kalhoro, Qurrat-ul-Ain Baloach
Nanotechnology is stable through actual minor fragments through substantial in alone or their management to produce new large scale material, at the Nano-scale materials are reformed after that of superior scale, the Nano-scale is the size series from almost 1nm to 100nm and nanotechnology is an aiding technology that consents us to changer sources with improved , totally new-fangled assets. The revolutionary advancement in the field of nanoscience and nanotechnology has explored variety of due applications in various fields. Particularly in the field of sensing the nanomaterials have wide spectrum due to the fact of high sensitivity and low concentration limit of recognition for the sensor device. The present study is focused on the synthesis of CuO nanostructures with XRD, SEM, characterization and soft templates for hydrothermal method techniques for the purpose of CuO nanostructures sample.
纳米技术是稳定的,通过实际的小片段,通过大量的单独或管理来生产新的大规模材料,在纳米尺度上,材料是在高级尺度之后改造的,纳米尺度是从几乎1nm到100nm的尺寸系列,纳米技术是一种辅助技术,使我们能够用改进的,全新的资产来改变来源。纳米科学和纳米技术领域的革命性进展,在各个领域探索了各种应有的应用。特别是在传感领域,纳米材料具有高灵敏度和低浓度识别限制的特点,具有广泛的光谱特性。本文主要研究了用XRD、SEM、表征和水热法软模板技术合成CuO纳米结构样品。
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引用次数: 0
Generation mean analysis of some Physiological Traits Contributing to heat Tolerance in Upland Cotton (Gossypium Hirsutum L.) 陆地棉耐热性生理性状的代均值分析
Pub Date : 2017-12-19 DOI: 10.26692/Surj/2017.12.61
K. Hussain, A. Qayyum
Various physiological parameters help out the plant to overcome the adverse effect of thermal stress. To understand the genetic base of these traits, the current study is a step ahead. The objective of this research was to estimate the gene actions that are responsible for survival of plant under heat stress condition. Six generations (P1, P2, F1, F2, BC1 and BC2) of three crosses were developed by crossing among six cotton genotypes and evaluated at the Central Cotton Research Institute, Multan Farm. The experiment was done in randomized complete blocks besign in three replications under normal and heat stress conditions. The mean of data of all six generations of three crosses were recorded keeping in view the support from literature. Additive, dominance and epistatic genetic effects were operating in controlling the phenotypic expressions of most of the traits contributing to heat stress tolerance. Heterobeltosis for relative water content was observed only in on cross under heat stress condition with the value of 1.39 while the excised leaf water loss did not showed. heterobeltosis under both conditions.
各种生理参数帮助植物克服热胁迫的不利影响。为了了解这些特征的遗传基础,目前的研究向前迈进了一步。本研究的目的是估计在热胁迫条件下植物存活的基因作用。通过6个棉花基因型的杂交,获得了3个杂交组合的6代(P1、P2、F1、F2、BC1和BC2),并在木潭农场中央棉花研究所进行了鉴定。试验采用完全随机区组设计,分3个重复,分别在正常和热应激条件下进行。考虑到文献的支持,记录了3个杂交6代的平均值。加性、显性和上位遗传效应控制了大部分耐热性性状的表型表达。在热胁迫条件下,只在1个杂交中观察到相对含水量的异矮化现象,其值为1.39,而切除叶片的水分损失不明显。两种条件下的异凸性。
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引用次数: 0
On the Performance analysis of image Dehazing using fuzzy theory and Artificial Neural Networks 基于模糊理论和人工神经网络的图像去雾性能分析
Pub Date : 2017-12-19 DOI: 10.26692/Surj/2017.12.54
N. Minallah, I. Ullah, M. Ashfaq, H. Mahesar
Photography in hazy environment, light attenuation and scattering caused by the water particles present in the medium, result in loss of severe image quality and loss of valuable information. In order to minimize the effect of haze and improve visual quality, this literature present a novel technique combining fuzzy theory, artificial neural networks and image fusion. Transmission map is estimated using fuzzy inference system. Then morphological operation and artificial neural network are applied to remove the halation present. Backpropagation, feedforward, cascaded-feedforward and fitnet artificial neural networks are applied on halation free transmission map for further refinement. Finally, image fusion technique is used to recover an enhanced version of all four images.
在雾蒙蒙的环境下摄影,由于介质中存在水粒子,造成光的衰减和散射,造成严重的图像质量损失和有价值的信息损失。为了最大限度地减少雾霾的影响,提高视觉质量,本文提出了一种结合模糊理论、人工神经网络和图像融合的新技术。利用模糊推理系统对传输图进行估计。然后运用形态学运算和人工神经网络技术对存在的色散进行去除。采用反向传播、前馈、级联前馈和fitnet人工神经网络对无振荡传输图进行进一步细化。最后,使用图像融合技术恢复所有四幅图像的增强版本。
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引用次数: 0
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Sindh University Research Journal
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