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A Google Map Based Social Network (GMBSN) for Exploring Information about a Specific Territory

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Journal of Software Engineering and Applications 2013年第7期6卷 343-348页

作者： Wasim Ahmad Ashraf zia Usman Khalid Department of Computer Sciences Abdul Wali Khan University Mardan Shankar Campus Khyber Pakistan

Social Networking is a harbinger to a more recent era in the area of computing where allocated and central resources are used in an exclusive manner. Millions of people around the globe with access to the internet are part of one or more social networks. They have permanent online accounts on Facebook and Twitter etc. where they create profiles, share photos, videos, useful links, their thoughts and spend hours catching up with what their friends are doing in their lives. The problem arise when somebody needs specific information about any city inside a country e.g. Where he/she can live? What he/she can eat? Where is the best place for outing? What are the special events relevant to that region? And may be any other help? In this paper we suggest a social network called Google map based social network (GMBSN), where users can choose their desired city of interest from the list. The selected city will be highlighted on Google map. After choosing any city from the map, the user will be able to select any category from the list and start finding and sharing information about the desired city of any country.

关键词： Google Map Social Network GMBSN LBSN’s LARE LDA

Cost Effective Scheme for OLT in Next Generation Passive Optical Access Network Based on Noise Free Optical Multi Carrier

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China Communications 2016年第6期13卷 76-87页

作者： Rahat Ullah Bo Liu Qi Zhang Qinghua Tian Amjad Ali Yousaf Khan Feng Tian M.Azam zia Haseeb Ahmad Lijia Zhang Xiangjun Xin State Key Laboratory of Information Photonics and Optical Communications.Beijing University of Posts and Telecommunications No.10 Xitucheng RoadBeijingChina100876 School of Electronic Engineering Beijing University of Posts and TelecommunicationsNo.10 Xitucheng RoadBeijingChina100876 Sarhad University of Science and Information technology PeshawarPakistan. Electrical Engineering Department Iqra University PeshawarPakistan. State Key laboratory of Network and Switching Technology Beijing University of Posts and TelecommunicationsNo.10 Xitucheng RoadBeijing100876China

We propos e a cos t-effective multi-carrier generation technique which minimizes the passive optical access network(PON) costs. In this study replacement of laser array with multi-carrier source at optical line terminal(OLT) side in PON is addressed. With 25-GHz frequency spacing, the generated optical multi-carriers exhibit good tone to noise ratio(TNR) i. e. above 20 d B, and least amplitude difference i. e. 1.5d B. At the OLT, multi-carriers signal based multiplexed differential phase shift keying(DPSK) data from all the channels each having 10 Gbps for downlink is transmitted through 25 km single mode fiber. While the transmitted information is retrieved at optical network unit(ONU), part of the downlink signal is re-modulated using intensity modulated(IM) on-off keying(OOK) for upstream transmission at 10-Gbps. Simulation results are in good agreement with the theoretical analysis, showing error free transmission in downlink and uplink with 10 Gbps symmetric data rate at each channel. The receivedpower, both for uplink and downlink transmission, is adequate for all channels at BER of 10-9 with minimum power penalties. Power budget is calculated for different splitting ratios showing excellent system margins for any unseen losses. The proposed setup provides a cost-effective way minimizing transmission losses, and providing greater system's margin in PON architecture.

关键词： differential phase shift keying intensity modulated on-off-keying optical frequency comb generation optical access network

Structural characterization of thin-walled microbubble cavities

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光子学研究:英文版 2023年第8期11卷 I0021-I0027页

作者： MOHAMMED zia JALALUDEEN SHILONG LI KE TIAN TOSHIO SASAKI SÍLE NIC CHORMAIC Light-Matter Interactions for Quantum Technologies Unit Okinawa Institute of Science and Technology Graduate UniversityOnnaOkinawa 904-0495Japan College of Physics and Optoelectronic Engineering Harbin Engineering UniversityHarbin 150001China Scientific Imaging Section Okinawa Institute of Science and Technology Graduate UniversityOnnaOkinawa 904-0495Japan

Whispering gallery mode(WGM)microbubble cavities are a versatile optofluidic sensing platform owing to their hollow core *** increase the light–matter interaction and,thereby,achieve higher sensitivity,thinwalled microbubbles are ***,a lack of knowledge about the precise geometry of hollow microbubbles prevents us from having an accurate theoretical model to describe the WGMs and their response to external *** this work,we provide a complete characterization of the wall structure of a microbubble and propose a theoretical model for the WGMs in this thin-walled microcavity based on the optical waveguide *** characterization of the wavelength-scale wall is enabled by focused ion beam milling and scanning electron microscopy *** proposed theoretical model is verified by finite element method *** approach can readily be extended to other low-dimensional micro-/nanophotonic structures.

关键词： waveguide characterization bubble

Physico-Chemical Analysis and Polarization Value Estimation of Raw Sugar from Refining Point of View

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American Journal of Plant Sciences 2015年第1期6卷 1-5页

作者： zia-ud -Din Ghulam Rasool National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan

This study was particularly designed to evaluate the physico-chemical parameters and polarization value of raw sugar which ultimately affect the filterability of raw sugar. Six different raw sugar samples were collected from the local industries and were evaluated for the physico-chemical and polarization value. The physico-chemical characteristics of sugar including moisture, reducing sugar, ash contents, size of crystals and color constituents were assessed. The results obtained from physico-chemical analysis showed that these parameters were affected significantly among the samples of raw sugar. The ash contents were found to be decreasing for the samples in the order of T6 > T1T2T5 > T3T4. The values for the polarization were significantly the highest in sample T5, T2 and T1 followed by sample T4 and T6 while the lowest values were recorded for sample T3. It can be concluded from the results that sample T4 was observed to have a good quality while sample T6 had the opposite result to that of sample T4 and was considered to have a very low quality.

关键词： Raw Sugar Filterability Physico-Chemical Analysis and Polarization Value

A Gas-Kinetic Scheme for Six-Equation Two-Phase Flow Model

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Applied Mathematics 2014年第3期5卷 453-465页

作者： Saqib zia Munshoor Ahmed Shamsul Qamar Department of Mathematics COMSATS Institute of Information Technology Islamabad Pakistan

A kinetic flux-vector splitting (KFVS) scheme is applied for solving a reduced six-equation two-phase flow model of Saurel et al. [1]. The model incorporates single velocity, two pressures and relaxation terms. An additional seventh equation, describing the total mixture energy, is added to the model to guarantee the correct treatment of shocks in the single phase limit. Some salient features of the model are that it is hyperbolic with only three wave propagation speeds and the volume fraction remains positive. The proposed numerical scheme is based on the direct splitting of macroscopic flux functions of the system of equations. The second order accuracy of the scheme is achieved by using MUSCL-type initial reconstruction and Runge-Kutta time stepping method. Moreover, a pressure relaxation procedure is used to fulfill the interface conditions. For validation, the results of suggested scheme are compared with those from the high resolution central upwind and HLLC schemes. The central upwind scheme is also applied for the first time to this model. The accuracy, efficiency and simplicity of the KFVS scheme demonstrate its potential for modeling two-phase flows.

关键词： Six-Equation Model Kinetic Flux-Vector Splitting Scheme Central Upwind Scheme Non-Conservative System Shock Solution

颈椎前后路手术后颈椎生理曲度变化的评估：一个回顾性临床研究

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颈椎前后路手术后颈椎生理曲度变化的评估：一个回顾性临床研究

作者： zia-ul-Haq 大连医科大学

学位级别：硕士

背景:正常的颈椎曲度是前凸,开始于齿突而结束于C7,成人C2到C7椎体后线的平均角度为34°±9°,正常颈椎前凸曲度的消失主要出现在各种疾病进程中和颈椎损伤时,其次常见于胸腰病变及下肢疾病及畸形时,颈椎病或颈椎畸形手术的最佳效果和... 详细信息

背景:正常的颈椎曲度是前凸,开始于齿突而结束于C7,成人C2到C7椎体后线的平均角度为34°±9°,正常颈椎前凸曲度的消失主要出现在各种疾病进程中和颈椎损伤时,其次常见于胸腰病变及下肢疾病及畸形时,颈椎病或颈椎畸形手术的最佳效果和患者满意度水平在一定程度上取决于颈椎前凸曲度的矫正和恢复。因此,颈椎病患者的手术治疗,除改善神经系统异常和缓解临床症状的作用外,手术治疗的主要目标是建立一个理想的颈椎生理曲度,从而起到保持适当的矢状面平衡、恰当的头部和颈部姿势以及水平视线的作用。目标:本研究的主要目标是:1、评估和比较颈椎生理曲度在前路与后路手术后的矫正情况。2、解决在前路和后路手术同样适用时如何选择手术路径的争议。实验设计:这是一个回顾性临床对照研究,两组患者(前路手术及后路手术)手术部位颈椎Cobb角及整体颈椎前凸曲度分别在术前和术后利用中立位平片进行测量。实验方法:在本研究中,2010年01月01日到2016年10月01日之间共有75(n=75)例患者接受了颈椎手术(颈椎前路以及后路),我们进行了回顾性研究。将75名患者分为两组:A组44例(n=44,其中男30例,女14例)均采用颈前路手术治疗;B组31例(n=31,其中男23例,女8例),采用颈后路手术治疗。A组(前路组)平均年龄为53.7岁(从42到77岁不等),B组(后路组)平均年龄61.52岁(年龄从30到84岁不等)。利用x线测量两组术前及术后颈椎Cobb角,在手术部位同时测量从C 2下终板到C 6或C 7下终板的颈椎整体前凸曲度。所有测量记录在Excel表内。数据分析采用SPSS20版(IBM公司软件)。结果:使用独立样本T检验分别比较A、B两组患者手术部位的Cobb角及整体颈椎前凸,同时也比较了两组平均差。P值为0.001或P<0.05,有显著统计学差异,据此我们可以推出,颈椎前路手术术后Cobb角的纠正程度比后路手术要好。结论:相较于后路手术,颈椎前路手术能提供一个更好的颈椎前凸曲度,并且使颈椎整体前凸曲度和Cobb角得到更好的纠正。

关键词： Cobb角颈椎矢状序列颈椎矢状面参数颈椎病颈椎生理曲度术后改变椎板切除术后脊柱后凸畸形

基于纳米结构的电化学传感器用于伏安法测定苄丝肼、尿酸和叶酸(英文)

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催化学报 2013年第10期34卷 1869-1875页

作者： Sakineh Esfandiari Baghbamidi Hadi Beitollahi Seyed zia Mohammadi Somayeh Tajik Somayeh Soltani-Nejad Vahhab Soltani-Nejad Islamic Azad University Bandar Abbas Branch Environment Department Institute of Science and High Technology and Environmental SciencesGraduate University of Advanced Technology Department of Chemistry Payame Noor University Department of Chemistry Shahid Bahonar University of Kerman Young Researchers Society Shahid Bahonar University of Kerman Department of Chemistry Islamic Azad UniversityNorth Tehran Branch

A carbon paste electrode modified with carbon nanotubes and ferrocene was *** electrochemical study of the modified electrode and an investigation into its efficiency for the electrocatalytic oxidation of benserazide,uric acid and folic acid were *** electrode was also used to study the electrocatalytic oxidation of benserazide using cyclic voltammetry,chronoamperometry,and square wave voltammetry(SWV).We found that the oxidation of benserazide at the surface of the modified electrode occurs at a potential about 285 mV lower than that of unmodified carbon paste *** gave a linear dynamic range from 8.0×10-7 to 7.0×10 4 mol/*** detection limit was 1.0×10-7 mol/L for *** modified electrode was used for the determination of benserazide,uric acid,and folic acid in an urine sample.

关键词： Benserazide Uric acid Folic acid Carbon nanotube Carbon paste electrode

波轮洗衣机弹性悬挂系统的数据驱动建模与仿真研究

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波轮洗衣机弹性悬挂系统的数据驱动建模与仿真研究

作者： PEI zia NGU 上海交通大学

学位级别：硕士

随着时代的进步,越来越多计算机技术进入产品开发的流程,工程师可以通过在计算机搭建虚拟仿真模型,并进行多种条件的实验来对设计进行分析与验证,此过程省去了反复制造实验样机与各个不同的部件的时间与成本,可以提高产品的研发效率。... 详细信息

随着时代的进步,越来越多计算机技术进入产品开发的流程,工程师可以通过在计算机搭建虚拟仿真模型,并进行多种条件的实验来对设计进行分析与验证,此过程省去了反复制造实验样机与各个不同的部件的时间与成本,可以提高产品的研发效率。在本文构建波轮洗衣机的仿真模型中,由于悬挂系统在力学上表现出高度非线性的现象,使得无法使用刚度与阻尼常数来表述其力学关系式,故通过传统的仿真建模方法或实验数学建模方法会有精度与效率上的不足。随着近年来的人工智能概念普及,机器学习、深度学习、强化学习等技术在工程的领域开始有了实际的运用。本文通过数据驱动方法对波轮洗衣的悬挂系统进行建模,解决传统方法构建悬挂系统模型在准确率与效率上的不足。此方法能降低仿真模型的复杂度,增加仿真的解算效率,也能使用实验数据学习悬挂系统的非线性关系,而不只是使用数学建模方法。通过为悬挂系统搭建实验台与同步信号采集系统来采集其同步的加速度信号与力信号,并使用机器学习方法来学习其非线性关系,构建悬挂系统的代理模型。采用Matlab与Adams的联合仿真技术将代理模型应用至波轮洗衣机的刚柔耦合模型中,获得动力学仿真模型,以数据驱动的方法实现波轮洗衣机的动力学仿真。最后,设置多个不同转速与偏心质量的实验条件,将动力学仿真模型与洗衣机样机在相同的实验条件下做对比与验证,并使用频域信号的幅值作为验证标准。验证结果表明,基于数据驱动搭建的波轮洗衣机动力学仿真模型与洗衣机样机在多种实验条件下的误差率能保持在9.38%以内,并且有优秀的模型泛化能力。

关键词：波轮洗衣机悬挂系统弹簧吊杆数据驱动建模动力学仿真技术

The Role of Risk Assessment at Antenatal Care Clinics in the Prediction of Pre-Eclampsia in a High Altitude Area

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International Journal of Clinical Medicine 2016年第1期7卷 10-15页

作者： Bahaeldin Hassan Mona Almushait Hamid Mubashar Shumalia zia Department of Obstetrics & Gynaecology College of Medicine King Khalid University Abha Kingdom of Saudi Arabia

Background: Hypertensive disorders are common causes of maternal and fetal mortality and morbidity. Objective: This study aimed to examine the prognostic value of risk assessment at level of antenatal care clinics in predicting pre-eclampsia at a high altitude (3133 m above sea level). Methods: This cross-sectional study, carried out in Abha Maternity and Pediatric Hospital (AMPH), Saudi Arabia, between January and June 2013, included 176 patients (88 pre-eclamptic women and 88 with normal pregnancies). Patient data including age, parity, blood pressure, body mass index, and complete blood count components were recorded. Results: Physical examination of systolic blood pressure, diastolic blood pressure and BMI between two groups showed high statistical significance with a P value of P value of P = 0.291). Mean plasma hematocrit levels in the study and the control groups were 38.49% ± 4.32% and 37.92% ± 7.04%, respectively;this was not found to be statistically significant (P = 0.518). Although there was an increase in laboratory blood tests of maternal hematocrit and hemoglobin levels, both parameters failed to show any statistical significance. Conclusion: Risk assessment at level of antenatal care clinics can be considered as valuable prognostic tool for prediction of preeclampsia. Any pregnant lady with abnormal physical examination findings of: BMI, systolic and diastolic blood pressure and obstetric history following risk assessment in antenatal care clinics should be observed for possibility of pre-eclampsia.

关键词： Pre-Eclampsia BMI Systolic Diastolic Pregnancy Screening Altitude Saudi Arabia