首页 > 最新文献

2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)最新文献

英文 中文
Coherence of Oscillations Generated by Single Electronic Circuits 单电路振荡的相干性
A. A. Alhassan, Nihad A. A. Elhag, S. Babiker
Several single electronic circuits have been proposed as candidate frequency generation sources. The quality of oscillations and their stability should be carefully assessed. This paper studies the coherence of the signals. The Monte-Carlo technique is used to compute the distribution of time between tunnel events and then calculate the frequency dependent power spectral density of the resulting oscillations. It is shown that longer arrays perform better than the short arrays and the quality of oscillations varies with the applied voltages. The quality of oscillations could be improved by the proper choice of the components of the circuit.
几个单一的电子电路被提出作为候选的频率产生源。应仔细评估振荡的质量及其稳定性。本文研究了信号的相干性。利用蒙特卡罗技术计算隧道事件之间的时间分布,然后计算结果振荡的频率相关功率谱密度。结果表明,较长的阵列比较短的阵列性能更好,振荡质量随外加电压的变化而变化。通过适当选择电路元件,可以改善振荡的质量。
{"title":"Coherence of Oscillations Generated by Single Electronic Circuits","authors":"A. A. Alhassan, Nihad A. A. Elhag, S. Babiker","doi":"10.1109/ICCCEEE.2018.8515884","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515884","url":null,"abstract":"Several single electronic circuits have been proposed as candidate frequency generation sources. The quality of oscillations and their stability should be carefully assessed. This paper studies the coherence of the signals. The Monte-Carlo technique is used to compute the distribution of time between tunnel events and then calculate the frequency dependent power spectral density of the resulting oscillations. It is shown that longer arrays perform better than the short arrays and the quality of oscillations varies with the applied voltages. The quality of oscillations could be improved by the proper choice of the components of the circuit.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79827084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Non-Invasive System for Detecting Malaria Parasites 非侵入式疟疾寄生虫检测系统
Abdulrahman Al-sanea, Eltahir Mohamed Hussein, R. Amer, A. Omer
In Sudan and in the other side of the world, malaria diagnosis still relies primarily on invasive methods that require taking sample of blood from a patient. However, these methods require highexperience and trained technicians to correctly determine the disease, and this diagnosis is errorprone due to human tiredness. The low number of technicians in Sudan will reduce the attempt to control malaria. Thus, this project aims to find another method to diagnosis malaria noninvasively without taking a sample of blood using infrared (IR) laser source for detecting hemozoin particles in the blood under the effect of magnetic field up to 0.6 Tesla. This study was validated by preliminary experiments across seventeen patients, the obtained results showed that the developed method has accuracy of (93.75%). Less pain, small duration, prevent the spread of infectious diseases and more comfortable malaria test will be presented by this study.
在苏丹和世界的另一边,疟疾诊断仍然主要依靠侵入性方法,需要从病人身上采集血液样本。然而,这些方法需要高经验和训练有素的技术人员才能正确判断疾病,而且由于人的疲劳,这种诊断容易出错。苏丹技术人员数量少将减少控制疟疾的努力。因此,本项目旨在寻找另一种无需采集血液样本的无创诊断疟疾的方法,使用红外(IR)激光源在高达0.6特斯拉的磁场作用下检测血液中的血色素颗粒。本研究通过17例患者的初步实验进行了验证,结果表明所建立的方法的准确率为(93.75%)。本研究将提供更少的疼痛,更短的持续时间,防止传染病的传播和更舒适的疟疾试验。
{"title":"Non-Invasive System for Detecting Malaria Parasites","authors":"Abdulrahman Al-sanea, Eltahir Mohamed Hussein, R. Amer, A. Omer","doi":"10.1109/ICCCEEE.2018.8515814","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515814","url":null,"abstract":"In Sudan and in the other side of the world, malaria diagnosis still relies primarily on invasive methods that require taking sample of blood from a patient. However, these methods require highexperience and trained technicians to correctly determine the disease, and this diagnosis is errorprone due to human tiredness. The low number of technicians in Sudan will reduce the attempt to control malaria. Thus, this project aims to find another method to diagnosis malaria noninvasively without taking a sample of blood using infrared (IR) laser source for detecting hemozoin particles in the blood under the effect of magnetic field up to 0.6 Tesla. This study was validated by preliminary experiments across seventeen patients, the obtained results showed that the developed method has accuracy of (93.75%). Less pain, small duration, prevent the spread of infectious diseases and more comfortable malaria test will be presented by this study.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88824422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GEOWARE: An optimised Matlab software for determination of high-frequency geoid model using relational operators GEOWARE:一个优化的Matlab软件,用于使用关系运算符确定高频大地水准面模型
A. Abdalla, C. Green
We present an optimised software (GEOWARE) for determination of high-frequency geoid height using terrestrial gravity measurements. The optimisation of Stokes integral is based on the extraction of a local area with a radius of a few hundreds kilometres around the computation point which complies with the specified spherical cap sizes. The extraction step is highly important because it detaches the dispensable compartments of the grid which are far from the computation domain. That makes it convenient to avoid passing through the compartments of the entire grid to test whether the spherical distances comply with the truncated cap size or not. Matlab relational operators and vectorisation are powerful optimisation tools because they can replace conditional statements and nested loops efficiently. GEOWARE has been compared with a non- optimised code over different sizes of cap size and it shows a significant improvement in the performance. The run time of GEOWARE in all cap sizes has up to 5 times smaller than that of the code before optimisation. GEOWARE is also compatible with modified Stokes, Newton and Poisson kernels.
我们提出了一个优化的软件(GEOWARE),用于确定高频大地水准面高度使用地面重力测量。Stokes积分的优化是基于在计算点周围以几百公里为半径提取符合指定球帽尺寸的局部区域。提取步骤非常重要,因为它将网格中远离计算域的可有可无的部分分离出来。这样可以方便地避免穿过整个栅格的隔室来测试球面距离是否符合截帽尺寸。Matlab关系运算符和向量化是强大的优化工具,因为它们可以有效地取代条件语句和嵌套循环。GEOWARE已与非优化代码在不同大小的帽大小上进行了比较,它显示了性能的显着改善。GEOWARE在所有封顶大小下的运行时间比优化前的代码少了5倍。GEOWARE也兼容修改斯托克斯,牛顿和泊松核。
{"title":"GEOWARE: An optimised Matlab software for determination of high-frequency geoid model using relational operators","authors":"A. Abdalla, C. Green","doi":"10.1109/ICCCEEE.2018.8515881","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515881","url":null,"abstract":"We present an optimised software (GEOWARE) for determination of high-frequency geoid height using terrestrial gravity measurements. The optimisation of Stokes integral is based on the extraction of a local area with a radius of a few hundreds kilometres around the computation point which complies with the specified spherical cap sizes. The extraction step is highly important because it detaches the dispensable compartments of the grid which are far from the computation domain. That makes it convenient to avoid passing through the compartments of the entire grid to test whether the spherical distances comply with the truncated cap size or not. Matlab relational operators and vectorisation are powerful optimisation tools because they can replace conditional statements and nested loops efficiently. GEOWARE has been compared with a non- optimised code over different sizes of cap size and it shows a significant improvement in the performance. The run time of GEOWARE in all cap sizes has up to 5 times smaller than that of the code before optimisation. GEOWARE is also compatible with modified Stokes, Newton and Poisson kernels.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78621988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Continuous Genetic Algorithm for Traffic Signal Control 交通信号控制的连续遗传算法
E. M. Ahmed
Traffic signal control has many approaches with the aim of reducing congestions on intersections. Genetic Algorithms (GAs) have been applied in traffic signal control recently in some research. However, there is still a room for more using of the GA under different scenarios. In this papers, we introduce an outstanding GA for traffic control. The proposed GA can work on single or multiple intersections. Results show that the proposed GA allows almost all vehicles on intersections to pass through under reasonable delay.
为了减少十字路口的拥堵,交通信号控制有很多方法。近年来,遗传算法在交通信号控制中得到了一些应用研究。然而,在不同的场景下仍然有更多使用遗传算法的空间。本文介绍了一种用于交通控制的优秀遗传算法。所提出的遗传算法可以在单个或多个交叉口上工作。结果表明,所提出的遗传算法在合理的延迟下,几乎允许所有交叉口车辆通过。
{"title":"Continuous Genetic Algorithm for Traffic Signal Control","authors":"E. M. Ahmed","doi":"10.1109/ICCCEEE.2018.8515770","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515770","url":null,"abstract":"Traffic signal control has many approaches with the aim of reducing congestions on intersections. Genetic Algorithms (GAs) have been applied in traffic signal control recently in some research. However, there is still a room for more using of the GA under different scenarios. In this papers, we introduce an outstanding GA for traffic control. The proposed GA can work on single or multiple intersections. Results show that the proposed GA allows almost all vehicles on intersections to pass through under reasonable delay.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81568242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Performance Evaluation and Failure Analysis of Modular Power Amplifier with Gysel and Branch Coupler Network Gysel -分支耦合器网络模块功率放大器性能评估与失效分析
Hamid Mubarak Mustafa Makkawi
Military radio frequency (RF) and microwave amplifier system requires high level of reliability so it is implemented in modular structure. In this paper, Ultra high frequency (UHF) amplifier system with two levels and 4 parallel modules is simulated. The proposed system is investigated for better combining network (Gysel and/or Branch coupler). Also it is critically investigated for performance degradation due to failure in one module or more. Analysis of system failure is simulated by turning off one module or more. The results are represented in terms of Scattering parameters and degradation of the system output power versus number of failed modules. Microwave office software have been used for the design and failure analysis of the proposed system.
军用射频和微波放大系统对可靠性要求较高,采用模块化结构实现。本文对两级4并联模块的超高频放大系统进行了仿真。为了更好地组合网络(Gysel和/或分支耦合器),研究了所提出的系统。此外,它还严格研究了由于一个或多个模块故障而导致的性能下降。通过关闭一个或多个模块来模拟系统故障分析。结果用散射参数和系统输出功率退化与失效模块数量的关系来表示。利用微波办公软件对系统进行了设计和故障分析。
{"title":"Performance Evaluation and Failure Analysis of Modular Power Amplifier with Gysel and Branch Coupler Network","authors":"Hamid Mubarak Mustafa Makkawi","doi":"10.1109/ICCCEEE.2018.8515863","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515863","url":null,"abstract":"Military radio frequency (RF) and microwave amplifier system requires high level of reliability so it is implemented in modular structure. In this paper, Ultra high frequency (UHF) amplifier system with two levels and 4 parallel modules is simulated. The proposed system is investigated for better combining network (Gysel and/or Branch coupler). Also it is critically investigated for performance degradation due to failure in one module or more. Analysis of system failure is simulated by turning off one module or more. The results are represented in terms of Scattering parameters and degradation of the system output power versus number of failed modules. Microwave office software have been used for the design and failure analysis of the proposed system.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72812734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adaptive Immune-Based System For Network Security 基于自适应免疫的网络安全系统
Reem Abdelrahman Ahmed Farah, Y. Mohamed
although a lot of effort has been made and a lot of studies about network security have been carried out, the security requirements for different type of network are increasing daily because of the huge amount of malware and hacking mechanisms are developed daily. Features that must be used in network to provide a high level of protection are; detection, protection and recovery. As such, this study include these features and it is inspired from human immune system, by simulating the mechanism of the natural immune system in computer network to provide security and work as adaptive immune system which learn by themselves. in this research we are concentrating more to learn the system by training the system to distinguish between self and oneself pattern by using different mechanism as calculating checksum of the packet and the checksum of system 32 files, and compare the incoming packet with the created database.. The system can observe any change occur in system 32 and trace any modification, creation, deleting and renaming inside system 32 When the system in learning phase the number of false positive are increase, but after the system gains experience, the false positive rate will decrease gradually. The results indicate that the proposed system is very accurate and is capable of tracking any change and detecting any malware within the system as well as high efficiency.
尽管人们在网络安全方面做了大量的工作和研究,但是由于每天都有大量的恶意软件和黑客机制被开发出来,对不同类型网络的安全要求也在与日俱增。必须在网络中使用的功能,以提供高水平的保护是;检测、保护和恢复。因此,本研究包含了这些特征,并受到人体免疫系统的启发,通过模拟计算机网络中自然免疫系统的机制,提供安全性,并作为自适应免疫系统进行自我学习。在本研究中,我们着重于通过使用不同的机制来训练系统区分self和self模式,如计算数据包的校验和和system 32文件的校验和,并将传入的数据包与创建的数据库进行比较。系统可以观察到系统32中发生的任何变化,并跟踪系统32内部的任何修改、创建、删除和重命名,当系统处于学习阶段时,误报的数量增加,但当系统获得经验后,误报率将逐渐减少。结果表明,该系统具有很高的准确性,能够跟踪系统中的任何变化,检测系统中的任何恶意软件,并且效率很高。
{"title":"Adaptive Immune-Based System For Network Security","authors":"Reem Abdelrahman Ahmed Farah, Y. Mohamed","doi":"10.1109/ICCCEEE.2018.8515827","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515827","url":null,"abstract":"although a lot of effort has been made and a lot of studies about network security have been carried out, the security requirements for different type of network are increasing daily because of the huge amount of malware and hacking mechanisms are developed daily. Features that must be used in network to provide a high level of protection are; detection, protection and recovery. As such, this study include these features and it is inspired from human immune system, by simulating the mechanism of the natural immune system in computer network to provide security and work as adaptive immune system which learn by themselves. in this research we are concentrating more to learn the system by training the system to distinguish between self and oneself pattern by using different mechanism as calculating checksum of the packet and the checksum of system 32 files, and compare the incoming packet with the created database.. The system can observe any change occur in system 32 and trace any modification, creation, deleting and renaming inside system 32 When the system in learning phase the number of false positive are increase, but after the system gains experience, the false positive rate will decrease gradually. The results indicate that the proposed system is very accurate and is capable of tracking any change and detecting any malware within the system as well as high efficiency.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73950337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Perturbing Effect of Stroke on Electric and Magnetic Fields Generated by Transcranial Magnetic Stimulation 脑卒中对经颅磁刺激产生的电场和磁场的扰动效应
Hossamaldin. M. A. Almokashfy, Saba. A. M. Abdelrahman, Marwa. O. D. Elkhidir, S. Ahmed
Transcranial magnetic stimulation (TMS) is a non-invasive and painless technique, used as a tool in medical therapeutic and diagnostic in neurology. Recently, TMS started to be used in the treatment of stroke post-conditions such as half paralysis and difficulties of pronunciation. The main objective of this paper was to study the effect of stroke on the distribution of magnetic field and current density generated from TMS. Two head models were created: healthy and with stroke. TMS coil was designed and both head models were placed 7 mm below the TMS coil. The finite element analysis was used to calculate the magnitude and spatial distribution of magnetic field and induced currents on head tissues that generated by TMS coil. The results showed that the presence of stroke changed the magnitude and spatial distribution of magnetic field and current density. The value of current density was greater in the stroke in comparison to the gray matter, where stroke is placed. The vector distribution of the magnetic field showed that the stroke changed the distribution by attracting the magnetic vectors to the center of the stroke.
经颅磁刺激(TMS)是一种无创、无痛的技术,在医学治疗和神经病学诊断中具有重要的应用价值。最近,经颅磁刺激开始用于治疗中风后的症状,如半瘫痪和发音困难。本文的主要目的是研究行程对经颅磁刺激产生的磁场分布和电流密度的影响。他们制作了两个头部模型:健康的和中风的。设计了经颅磁刺激线圈,并将两个头部模型置于经颅磁刺激线圈下方7mm处。采用有限元分析方法计算了经颅磁刺激线圈在头部组织上产生的磁场和感应电流的大小和空间分布。结果表明,冲程的存在改变了磁场和电流密度的大小和空间分布。与放置笔划的灰质相比,笔划处的电流密度值更大。磁场的矢量分布表明,行程通过将磁矢量吸引到行程中心而改变了磁场的分布。
{"title":"Perturbing Effect of Stroke on Electric and Magnetic Fields Generated by Transcranial Magnetic Stimulation","authors":"Hossamaldin. M. A. Almokashfy, Saba. A. M. Abdelrahman, Marwa. O. D. Elkhidir, S. Ahmed","doi":"10.1109/ICCCEEE.2018.8515769","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515769","url":null,"abstract":"Transcranial magnetic stimulation (TMS) is a non-invasive and painless technique, used as a tool in medical therapeutic and diagnostic in neurology. Recently, TMS started to be used in the treatment of stroke post-conditions such as half paralysis and difficulties of pronunciation. The main objective of this paper was to study the effect of stroke on the distribution of magnetic field and current density generated from TMS. Two head models were created: healthy and with stroke. TMS coil was designed and both head models were placed 7 mm below the TMS coil. The finite element analysis was used to calculate the magnitude and spatial distribution of magnetic field and induced currents on head tissues that generated by TMS coil. The results showed that the presence of stroke changed the magnitude and spatial distribution of magnetic field and current density. The value of current density was greater in the stroke in comparison to the gray matter, where stroke is placed. The vector distribution of the magnetic field showed that the stroke changed the distribution by attracting the magnetic vectors to the center of the stroke.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74014083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An experimental study on using polyethylene glycol (PEG) 600 as phase change material for thermal comfort and energy saving in buildings 聚乙二醇(PEG) 600作为相变材料用于建筑热舒适和节能的实验研究
Adil A. M. Omara, Abuelnuor A. A. Abuelnuor, A. A. Mohammed, Omer M. A. Sirelkhatim, Awab A. M. Suleman
The building sector is one of the sectors where energy consumption has been expanding consistently to achieve 20–40% of the aggregate energy use in most countries. Thermal energy storage (TES) with phase change materials (PCM) is valuable technique for enhancing energy proficiency of a building by lessening the mismatch amongst supply and demand of heat or cold. This paper aims to investigate thermal comfort and energy saving in buildings by incorporating polyethylene glycol (PEG) 600 as phase change material with concrete. A concrete PCM system which is located in Khartoum, Sudan was used to study the thermal behavior of a building in response to outdoor environmental exposure. The concrete PCM ceiling system is consisted of two models; one with PCM and the other without PCM. The experimental analysis was done with and without present of fan in the concrete model with PCM. The results showed that the model with PCM could reduce the peak temperature with and without using fan by 4 °C and 1 °C respectively. The results additionally demonstrated that PCM could improve the storage of thermal mass of concrete about 6 times. The heat capacity and high density of concrete integrated with latent heat storage of PCM provides an energy saving concepts for sustainable built environment.
建筑行业是能源消耗持续扩大的行业之一,在大多数国家达到总能源使用的20-40%。相变材料储热技术是一种有价值的技术,可以通过减少冷热供需之间的不匹配来提高建筑物的能源效率。本文旨在研究聚乙二醇(PEG) 600作为相变材料掺入混凝土对建筑的热舒适性和节能效果。位于苏丹喀土穆的混凝土PCM系统被用于研究建筑物在室外环境暴露下的热行为。混凝土PCM吊顶系统由两种模型组成;一个有PCM,另一个没有PCM。用PCM对混凝土模型进行了有风机和无风机的试验分析。结果表明,采用PCM的模型在使用和不使用风机的情况下,峰值温度分别降低4℃和1℃。结果还表明,PCM可使混凝土的热质量储存量提高约6倍。混凝土的热容量和高密度与PCM的潜热储存相结合,为可持续建筑环境提供了一种节能理念。
{"title":"An experimental study on using polyethylene glycol (PEG) 600 as phase change material for thermal comfort and energy saving in buildings","authors":"Adil A. M. Omara, Abuelnuor A. A. Abuelnuor, A. A. Mohammed, Omer M. A. Sirelkhatim, Awab A. M. Suleman","doi":"10.1109/ICCCEEE.2018.8515846","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515846","url":null,"abstract":"The building sector is one of the sectors where energy consumption has been expanding consistently to achieve 20–40% of the aggregate energy use in most countries. Thermal energy storage (TES) with phase change materials (PCM) is valuable technique for enhancing energy proficiency of a building by lessening the mismatch amongst supply and demand of heat or cold. This paper aims to investigate thermal comfort and energy saving in buildings by incorporating polyethylene glycol (PEG) 600 as phase change material with concrete. A concrete PCM system which is located in Khartoum, Sudan was used to study the thermal behavior of a building in response to outdoor environmental exposure. The concrete PCM ceiling system is consisted of two models; one with PCM and the other without PCM. The experimental analysis was done with and without present of fan in the concrete model with PCM. The results showed that the model with PCM could reduce the peak temperature with and without using fan by 4 °C and 1 °C respectively. The results additionally demonstrated that PCM could improve the storage of thermal mass of concrete about 6 times. The heat capacity and high density of concrete integrated with latent heat storage of PCM provides an energy saving concepts for sustainable built environment.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80378825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Design and Simulation of a Compensator for Automatic-Optical Leveling Instrument 自动光学调平仪补偿器的设计与仿真
Mohamed Nasreldin M.A.
{"title":"Design and Simulation of a Compensator for Automatic-Optical Leveling Instrument","authors":"Mohamed Nasreldin M.A.","doi":"10.1109/iccceee.2018.8515894","DOIUrl":"https://doi.org/10.1109/iccceee.2018.8515894","url":null,"abstract":"","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80591509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Economic Evaluation of Grid Connected Photovoltaic System for a Residential House in Khartoum 喀土穆某住宅光伏并网系统经济评价
Elaff ALfadil Ismail, Dr. Samah Mohammed Hashim
The climatic conditions of Sudan are ideal for solar energy technology. In areas where grid is available grid connected systems are more advantageous. In this study economic evaluation of grid connected photovoltaic system for a residential house located in Khartoum has been conducted to provide information on economic viability of PV-grid connected system to assist taking the decision about system implementation. The proposed system was simulated using PVSYST software to obtain the energy output, and using Microsoft excel sheet the economic evaluation is conducted for two scenarios one with no incentive policies from the government and in this case the system will take 18 years before it starts to produce a profit with 4% internal rate of return. The other case is under the effect of the feed in tariff rate and the payback period is founded to be 9 years with 10% internal rate of return. The system produces 20707kWh yearly and the cost of the kWh is found to be 0.051$. The study is based on a pilot project of 5 kw PV grid connected system in the energy research center at the faculty of engineering, university of Khartoum.
苏丹的气候条件非常适合太阳能技术。在电网可用的地区,并网系统更有优势。本研究对喀土穆某住宅光伏并网系统进行了经济评价,为光伏并网系统的经济可行性提供信息,协助制定系统实施决策。使用PVSYST软件对所提出的系统进行模拟以获得能量输出,并使用Microsoft excel表格对两种情况进行经济评估,一种情况是政府没有激励政策,在这种情况下,系统将需要18年才能开始产生利润,内部回报率为4%。另一种情况是在补贴税率的影响下,投资回收期为9年,内部收益率为10%。该系统年发电量为20707千瓦时,每千瓦时的成本为0.051美元。该研究基于喀土穆大学工程学院能源研究中心的5千瓦光伏并网系统试点项目。
{"title":"An Economic Evaluation of Grid Connected Photovoltaic System for a Residential House in Khartoum","authors":"Elaff ALfadil Ismail, Dr. Samah Mohammed Hashim","doi":"10.1109/ICCCEEE.2018.8515807","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515807","url":null,"abstract":"The climatic conditions of Sudan are ideal for solar energy technology. In areas where grid is available grid connected systems are more advantageous. In this study economic evaluation of grid connected photovoltaic system for a residential house located in Khartoum has been conducted to provide information on economic viability of PV-grid connected system to assist taking the decision about system implementation. The proposed system was simulated using PVSYST software to obtain the energy output, and using Microsoft excel sheet the economic evaluation is conducted for two scenarios one with no incentive policies from the government and in this case the system will take 18 years before it starts to produce a profit with 4% internal rate of return. The other case is under the effect of the feed in tariff rate and the payback period is founded to be 9 years with 10% internal rate of return. The system produces 20707kWh yearly and the cost of the kWh is found to be 0.051$. The study is based on a pilot project of 5 kw PV grid connected system in the energy research center at the faculty of engineering, university of Khartoum.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73583733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
期刊
2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1