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Experiments with Neural Networks Training Algorithms for DDoS attacks Detection 基于神经网络训练算法的DDoS攻击检测实验
Pub Date : 2019-12-09 DOI: 10.26692/surj/2019.12.106
F. Jokhio, A. A. Jamali, M. Anjum, K. Kanwar, S. Afridi
Attacks on servers to bring their services down is growing rapidly. There are several possible methods through which attackers can attack a server. Distributed denials of service (DDoS) attacks are one of these attacks types in computing environments. In this paper, we discuss the possible ways of DDoS attacks detection using artificial neural network based techniques. Here a feed forward neural network is designed to detect DDoS attacks in a network based environment. Performance of feed forward neural network is analyzed by applying three different training algorithms. These algorithms are (1) Scaled Conjugate Gradient (2) Bayesian Regularization and (3) Gradient Descent. Results show that Bayesian Regularization algorithm is better among these three training algorithms and it has less number of misclassifications.
针对服务器的攻击使其服务瘫痪的情况正在迅速增加。攻击者可以通过几种可能的方法攻击服务器。分布式拒绝服务(DDoS)攻击是计算环境中的一种攻击类型。本文讨论了利用人工神经网络技术检测DDoS攻击的可能方法。这里设计了一个前馈神经网络来检测基于网络的环境中的DDoS攻击。采用三种不同的训练算法,分析了前馈神经网络的性能。这些算法是(1)缩放共轭梯度(2)贝叶斯正则化和(3)梯度下降。结果表明,贝叶斯正则化算法在三种训练算法中表现较好,且误分类次数较少。
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引用次数: 0
Incensement of Temperature Triggered to Induce Severe Drought in Thar Desert, Pakistan 温度升高引发巴基斯坦塔尔沙漠严重干旱
Pub Date : 2019-12-09 DOI: 10.26692/surj/2019.12.99
S. Meghwar, G. M. Mastoi, K. F. Almani, A. G. Sahito, K. H. Lashari, M. Ali, M. Panhwar, S. Rahoojo, A. Hingorjo
In deserts an increase or even a small change in temperature can set ideal conditions for drought; the prolonged conditions can lead to an agricultural drought from the metrological drought. We have applied SPSS and SPI to investigate Global climate model temperature variation as a drought driven element. Met-data of two meteorological stations was analyzed to reveal the condition. The obtained results show that temperature has risen from 1oC to2.5oCin20th century. The data also demonstrates a negative correlation between temperature and drought.
在沙漠中,温度的升高甚至是微小的变化都可能为干旱创造理想的条件;长期的气候条件会导致农业干旱,而不是气象干旱。我们应用SPSS和SPI对全球气候模式温度变化作为干旱驱动因素进行了研究。分析了两个气象站的气象资料,揭示了这一情况。结果表明,20世纪气温已从10℃上升到2.5℃。数据还表明温度和干旱之间呈负相关。
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引用次数: 0
Study on the Conventional and Traditional Treatment of Caprine Mastitis 绵羊乳腺炎的常规与传统治疗研究
Pub Date : 2019-12-09 DOI: 10.26692/surj/2019.12.101
M. A. Solangi, N. A. Korejo, J. Soomro, A. Sethar, R. A. Korejo, A. A. Kamboh, A. Mirani, H. Solangi, P. Munir, S. A. Shah, B. Kanwal, J. A. Shaikh
Ethnoveterinary practices are very common in Pakistan due to the poor socioeconomic status of the rural farmers. The traditional veterinary healers are therefore getting more attention from farmers. Thirty mastitic goats were selected and divided into five equal groups viz; A, B1, B2, C1 and C2. Groups were treated as A: control (no treatment), B1: parental injections of amoxicillin with clavulanic acid and flunixinmaglumine, B2: trimethoprim with sulphadiazene and flunixinmaglumine, C1: oral treatment of Garlic (Allium Sativium L.) and Turmeric (Curcuma Longa L.), C2: Purple fleabane (Centratherum Anthelmenticum) and Turmeric (Curcuma Longa L.). The bacterial load of clinical mastitis before and after treatment was measured. The bacterial load was noticed significantly reduced in group B, followed by C compared with A at 7th and 14th day of conventional and traditional treatments respectively. Furthermore, on day 28th of trial the right teat bacterial load was significantly reduced in all treated groups vs control. Out of 1260 milk samples, the clinical and subclinical mastitis was observed in 65 (5.15%) and 226 (23.1 %) animals respectively. The temperature, pulse, respiration, udder circumference and cumulative bacterial load were elevated in untreated animals and on 0 day, which further subsides following treatment in different groups. The milk quantity was seriously reduced in mastitic goats, however some of the lost milk quantity was recovered following different treatments. It has been revealed that the medicinal plants can also be used effectively at very low cost but recovery is slow.
由于农村农民的社会经济地位低下,民族兽医做法在巴基斯坦非常普遍。因此,传统的兽医治疗师越来越受到农民的关注。选取30只乳母山羊,分为5组:A B1 B2 C1 C2。各组分别为:A组为对照组(未处理),B1组为阿莫西林加克拉维酸加氟尼新镁明注射剂,B2组为甲氧苄氨嘧啶加磺胺和氟尼新镁明注射剂,C1组为大蒜(Allium Sativium L.)和姜黄(Curcuma Longa L.)口服治疗组,C2组为紫芹(Centratherum Anthelmenticum)和姜黄(Curcuma Longa L.)口服治疗组。测定治疗前后临床乳腺炎细菌负荷。B组和C组分别在常规和传统治疗第7天和第14天细菌载量显著低于A组。此外,在试验第28天,与对照组相比,所有处理组的右乳细菌载量均显著降低。在1260份乳汁样本中,65只(5.15%)和226只(23.1%)分别出现临床和亚临床乳腺炎。未治疗动物的体温、脉搏、呼吸、乳房围度和累积细菌负荷在第0天升高,不同组在治疗后进一步下降。乳山羊的泌乳量严重减少,但经过不同处理后,泌乳量有所恢复。研究表明,这些药用植物也可以有效利用,成本很低,但回收速度慢。
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引用次数: 0
Life forms study of Acrididae (Orthoptera) in Hyderabad Sindh, Pakistan 巴基斯坦信德省海得拉巴地区蝗科(直翅目)生命形态研究
Pub Date : 2019-12-09 DOI: 10.26692/surj/2019.12.93
B. A. Bughio, A. M. Ahmed, B. Jhakrejo, A. M. Rahoo, S. Rajput
During present work seven species and subspecies of the tribe Acrotylini and Locustini were found and further observed for life forms. It was noticed that Acrotylushumbertianus A.longipessubfasciatus A.longipessubfasciatus were Terri-arenicole, A.insubricusinsubricus, A. patruelisare Terri-deserticole. Herrich-Schaffer and species of tribe Locustini namely, Locustamigratoria are Graminicole, Gastrimargusafricanussulphureus were Graminicole, Therefore life –form study of was taken from Acrididae of Hyderabad that collected from Agricultural field and semi deserted areas and preliminary result are presented here. The occurrence of various life forms of grasshoppers indicated their favorable environmental conditions. Beside this, the insect distribution were also observed.
在本工作中发现了7个Acrotylini和Locustini部落的种和亚种,并进一步观察了它们的生命形式。结果表明,长筋膜下长筋膜下acrotylushumbertius为teri -arenicole、insubicusinsubicus、patruelisa . teri -deserticole。Herrich-Schaffer和Locustini部落的种,即locstamigratoria为Graminicole, Gastrimargusafricanussulphureus为Graminicole,因此本文对在农田和半荒芜地区采集的海得拉巴蝗科进行了生活型研究,并给出了初步结果。蚱蜢的各种生活形式的出现表明了其良好的环境条件。除此之外,还观察了昆虫的分布。
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引用次数: 0
Paratransit Public Transport Satisfaction Level of Common People: Hyderabad city, Pakistan 普通民众对公共交通的满意度:巴基斯坦海得拉巴市
Pub Date : 2019-12-09 DOI: 10.26692/surj/2019.12.108
F. Baig, M. A. H. Talpur, I. Chandio, M. G. Bhellar, R. Khoso
Public transport including formal and informal (Paratransit) transport plays an important role in all major cities throughout the world. One of the important issue regarding this type of transport is passenger’s satisfaction. In context of Pakistan, only few studies were conducted on the satisfaction studies regarding public transport. Furthermore, quality of public transport service as per consumers’ desires is an important issue nowadays. This study aims to assess the citizen’s perceived satisfaction regarding the quality of Paratransit public transport as well as to provide guidelines in order to improve the conditions of transportation system. Sample size for the present study was selected as 384 and an online questionnaire survey methodology with simple random sampling was implied to collect the desired data. Respondents filled Likert-scale based questions focusing demographics of the area, and R programming associated with R studio utilized for data analysis. In addition, statistical correlation was also implied to describe the relationship of various factors on overall public transport satisfaction level of people. Study is significant in terms of indicating the alarming situation of public transport in Hyderabad city and providing the public transport satisfaction related statistics, which allows policy planners to make the transport policies as per public interest.
公共交通,包括正式和非正式(辅助交通)运输在世界上所有主要城市都发挥着重要作用。关于这种运输方式的一个重要问题是乘客的满意度。就巴基斯坦而言,对公共交通的满意度研究进行的研究很少。此外,公共交通服务的质量根据消费者的愿望是一个重要的问题。本研究旨在评估市民对辅助公共交通质量的感知满意度,并为改善交通系统状况提供指导。本研究的样本量为384份,采用简单随机抽样的在线问卷调查方法来收集所需的数据。受访者填写了基于李克特量表的问题,重点关注该地区的人口统计数据,并使用R工作室相关的R编程进行数据分析。此外,还隐含了统计相关性来描述各因素对人们整体公共交通满意度的关系。这项研究在表明海得拉巴市公共交通的惊人状况和提供公共交通满意度相关统计数据方面具有重要意义,这使得政策规划者能够根据公共利益制定交通政策。
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引用次数: 1
Determining Critical Success Factors for Predicting Process Improvement Implementation Success of IT Projects A Case Study of Telecom Industry 确定预测IT项目过程改进实施成功的关键成功因素——以电信行业为例
Pub Date : 2018-06-17 DOI: 10.26692/SUJO/2018.06.0052
M. Syed, A. Ahsan
Now a day’s telecom industry is facing real problem of improving IT processes. PI projects are widely used to overcome these challenges but unfortunately these projects do not have long lasting success results. In this tech savvy era, IT projects are crucial for survival in Telecom industry. Therefore, there is a need for reengineering of PI projects and identification of the critical success factors which are inattentive. The present study was conducted to fill this gap and robust the existing process of implementation of PI in IT projects. Field survey was conducted using 5 likert scale questionnaire, based on extracted critical success factors. In order to collect the data, Purposive sampling was used along Delphi technique. 6 out of 10 experts responded in each subsequent round. Data was analyzed in SPSS. Statistical analysis showed the consensus of experts on 10 CSF’s which played an important role for the successful implementation of PI in IT projects. Implementation of these results was only specifiedto telecom industry which is a limitation of this study. Results of this research can be used for increasing the chances of success of PI implementation in IT projects prior to their initiation.
如今,电信行业正面临着改进IT流程的真正问题。PI项目被广泛用于克服这些挑战,但不幸的是,这些项目没有持久的成功结果。在这个精通技术的时代,IT项目对于电信行业的生存至关重要。因此,有必要对PI项目进行再造,并识别出被忽视的关键成功因素。本研究旨在填补这一空白,并完善IT项目中PI实施的现有流程。基于提取的关键成功因素,采用5李克特量表进行实地调查。为了收集数据,采用德尔菲法进行有目的抽样。在随后的每一轮中,10位专家中有6位做出了回应。数据用SPSS进行分析。统计分析表明,专家对10项CSF的共识对IT项目中PI的成功实施发挥了重要作用。这些结果的实施仅针对电信行业,这是本研究的局限性。本研究的结果可用于在IT项目启动之前增加PI实施成功的机会。
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引用次数: 0
Determination of Approximated Root of Nonlinear Equation by Interpolation Technique 用插值法求非线性方程的近似根
Pub Date : 2018-03-07 DOI: 10.26692/surj/2018.01.0023
M. N. Brohi, A. Shaikh, S. Bhatti, S. Quershi
This beautiful universe is full of mathematical and engineering problems involving nonlinear equations 𝑓(𝑥)=0. The main theme of this paper is to develop an Algorithm to enhance the speed and convergence of bracketing methods for determining the root of nonlinear equations. For this cause, Newton forward interpolation difference formula and Bisection Method are recruit. Developed interpolation technique method guarantees that it converges towards thereal root faster than Bisection Method and RegulaFalsi Method. Few numerical examples are also conferred in this paper to inspect the efficiency of developed method and compared with other existing methods. It is examined from the results that the performance of developed method is better than the existing methods such as Bisection Method and RegulaFalsi Method.
这个美丽的宇宙充满了涉及非线性方程的数学和工程问题𝑓(s1)=0。本文的主题是开发一种算法,以提高确定非线性方程根的括号法的速度和收敛性。为此,引入牛顿正演插值差分公式和等分法。所开发的插值技术方法比等分法和正则法更快地收敛于实根。文中还给出了一些数值算例,以检验所提出方法的有效性,并与其他现有方法进行了比较。结果表明,该方法的性能优于现有的等分法和正则法。
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引用次数: 0
Nutritional Profile and Medicinal Properties of Cucumis melo var Agrestis: A Non- Conventional Vegetable 一种非传统蔬菜——甜瓜的营养成分及药用价值
Pub Date : 2018-03-07 DOI: 10.26692/surj/2018.01.0019
M. Memon, A. Ghanghro, A. Memon, G. Usman, Afsheen Mushtaque Shah, A. Abro
The research study was design to determine the nutritional profile and medicinal properties of non-conventional vegetable Cucumis melo var Agrestis of district Tharparkar, for sake to take a little step for overcoming the situation of malnutrition and to alleviate the nutritional and health status of the community as well. Cucumis melo var Agrestis fruits sample were collected from the vicinity of Mithi, district Tharparkar, Sindh, Pakistan. Biochemical and phytochemical screening via different standard methods was performed to assess the nutritional value of the plant. The outcomes of experimental work were estimate ash content with 3.8%, moisture 80.9%, carbohydrate content 31.2%, moreover protein content of Cucumis melo var Agrestis was detected 18.9% in fruit part. However, the presence of Phenolic compounds alike total alkaloids and total Tannis was also observed, beside this the heavy metals was found available and analysis shows presence of Cu, Fe, Zn, Co with 138, 141, 17.6 and 0.03 of ppm concentration were found respectively, although very minute concentration of Mn, Pb and Cd perceived below the limit of detection. Hence it was concluded from present study that Cucumis melo var Agrestis (Fruit) was found nutritious that can be used as food to overwhelm the situation of malnutrition.
本研究旨在了解Tharparkar地区非常规蔬菜甜瓜(Cucumis melo var Agrestis)的营养成分和药用特性,以期为克服该地区的营养不良状况,改善该社区的营养健康状况迈出一小步。在巴基斯坦信德省Tharparkar区Mithi附近采集了甜瓜和Agrestis果实样本。通过不同的标准方法进行生化和植物化学筛选,以评估植物的营养价值。结果表明,甜瓜果实部分灰分含量为3.8%,水分含量为80.9%,碳水化合物含量为31.2%,蛋白质含量为18.9%。然而,总生物碱和总鞣酸等酚类化合物的存在也被观察到,除此之外,还发现了重金属,分析显示存在Cu, Fe, Zn, Co,浓度分别为138,141,17.6和0.03 ppm,尽管Mn, Pb和Cd的极微量浓度低于检测极限。因此,本研究认为,甜瓜是一种营养丰富的水果,可以作为食物来克服营养不良的状况。
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引用次数: 2
Analysis of Students’ Satisfaction with Hostel Facilities: A Case Study 学生对宿舍设施的满意度分析:个案研究
Pub Date : 2018-03-07 DOI: 10.26692/SURJ/2018.01.0016
M. Memon, M. A. Solangi, S. Abro
Though now a days Hostel life is much essential for students but still there are some restrictions. There are many complications in the hostel life. For this purpose, we investigate the student’s satisfaction with hostel facilities. During the analysis, the student’s feedback for the hostel facilities for the year 2015 and 2016 were taken and the data has been collected from the Director Management Information System (MIS). Statistical Package for Social Sciences (SPSS17) was used to analyze and shows the overall students satisfaction regarding hostel facilities. The results indicated that there is strong evidence of significance relationship between the results of the parameters (Food Quality, Cleanliness, Water supply and First aid) services. The null hypothesis is accepted except for only two parameters of Shah Abdul Latif, Shaikh Sindhi and Bakhtawar hostels.
虽然现在一天的宿舍生活对学生来说是必不可少的,但仍然有一些限制。旅社生活中有许多复杂的事情。为此,我们调查了学生对宿舍设施的满意度。在分析过程中,收集了2015年和2016年学生对宿舍设施的反馈,并从院长管理信息系统(MIS)中收集了数据。社会科学统计包(SPSS17)用于分析和显示学生对宿舍设施的总体满意度。结果表明,食品质量、洁净度、供水和急救服务四个参数的结果之间存在显著性关系。除了Shah Abdul Latif, Shaikh Sindhi和Bakhtawar旅馆两个参数外,零假设被接受。
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引用次数: 6
Measuring the Impact of Risk Events and Uncertainty in Activity Durations on Project Schedul 测量风险事件和活动持续时间的不确定性对项目进度的影响
Pub Date : 2018-03-07 DOI: 10.26692/surj/2018.01.0003
H. Nasir
Construction projects are usually over budget and beyond their planned schedule. One possible reason for these situations is that proper risk management techniques are not applied during the planning and execution of projects. This paper introduces a method which uses the impacts of risk in project scheduling. A simple infrastructure project is considered for analysis. Uncertainty in activity durations is assigned using various statistical distributions. Further, certain risk events are added to the project using risk register. The impact of these uncertainties in activity durations and risk events are modeled and simulated in @Risk software. The software uses Monte Carlo simulations for risk analysis. The results show that the model can predict the impact of uncertainty in activity durations on the pro-ject completion time. The additional days added to the planned schedule because of occurrence of risk events can also be predicted with confidence. The results provide confirmation that risks associated with project schedules can be managed if properly accounted for
建设项目通常超出预算,超出计划进度。出现这些情况的一个可能原因是在项目的计划和执行过程中没有应用适当的风险管理技术。本文介绍了一种在项目进度中考虑风险影响的方法。考虑一个简单的基础设施项目进行分析。活动持续时间的不确定性使用各种统计分布来分配。此外,使用风险登记册将某些风险事件添加到项目中。这些不确定性对活动持续时间和风险事件的影响在@Risk软件中进行建模和模拟。该软件使用蒙特卡罗模拟进行风险分析。结果表明,该模型能较好地预测活动持续时间的不确定性对项目完成时间的影响。由于风险事件的发生而增加到计划进度的额外天数也可以有信心地预测。结果证实,如果适当地考虑,与项目进度相关的风险是可以管理的
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引用次数: 0
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Sindh University Research Journal
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