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IMPLEMENTATION OF THE RED MECHANISM FOR CONGESTION AVOIDANCE USING C++ LANGUAGE 使用c++语言实现红色的拥塞避免机制
EPH - International Journal of Science And Engineering Pub Date : 2017-12-27 DOI: 10.53555/eijse.v3i4.111
Haytham Ahmed
{"title":"IMPLEMENTATION OF THE RED MECHANISM FOR CONGESTION AVOIDANCE USING C++ LANGUAGE","authors":"Haytham Ahmed","doi":"10.53555/eijse.v3i4.111","DOIUrl":"https://doi.org/10.53555/eijse.v3i4.111","url":null,"abstract":"Congestion lowers the network utilization, throughput which causes very large queuing delays, data loss and degrades quality of service. In this paper the technique Random Early Detection (RED) has been studied in more details and other queuing techniques have been derived in general in order to solve congestion problem in the computer networks. The simulation program has been built using C++ language to simulate Random Early Detection (RED) algorithm which gave a detailed result about the algorithm","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116203160","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
CONSTRUCTION OF COFFER DAMS FOR FIGHTING FEROCIOUS KOSI 建造围堰以对抗凶猛的高西
EPH - International Journal of Science And Engineering Pub Date : 2017-12-27 DOI: 10.53555/eijse.v3i4.115
Anil . Kumar
{"title":"CONSTRUCTION OF COFFER DAMS FOR FIGHTING FEROCIOUS KOSI","authors":"Anil . Kumar","doi":"10.53555/eijse.v3i4.115","DOIUrl":"https://doi.org/10.53555/eijse.v3i4.115","url":null,"abstract":"Kosi River is an alluvial stream flows through Shivalih hill in Nepal & Tibet (China).It comes on the plane at Chatra about 45km North of Indo –Nepal border. There is a barrage on Indo-Nepal border at Bhim Nagar, Birpur in Supaul District of Bihar, Inia.Kosi River was devastating before it was tamed.In eighteen century it was flowing near Purnea town and shifted westward, now flowing near Supaul. It shifted about 120 km westward in 275 years.  This river is formed by the confluence of seven small streams flowing through Tibet a Nepal. These seven streams are – Indravati, Tamar Kosi, likhu Kosi, Doodh Kosi, Arun Kosi and Tama Kosi. It travels about 729 kms from source to confluence with Ganga in Kurshela. Some hydraulic particulars of the rivers were:-  Design Discharge of Barrage -9, 50, 000 cusec Max Discharge observed on 5th Oct 1968- 9,13,000 cusec( after construction of barrage) Total No .of Gate- 46On 16th Aug, 2008 there was a breach in eastern Kosi Afflux Bund of river Kosi In Nepal. The location of breach point was 13 m upstream from barrage. The river was flowing in three streams. Technical experts decided to construct three coffer dams to retrain the three streams into one and bring back the river river in main channel. it was on 24th Janurary,2008 on which the main flow of Kosi was stopped through bridge and diverted towards barrage through pilot channel. The barrage again stated functioning.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123933806","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
ANALYSIS STABILITY SYSTEM RUDDER ROLL OF SHIP CARGO A. PIONEER 船货舵摇稳系统分析
EPH - International Journal of Science And Engineering Pub Date : 2017-12-27 DOI: 10.53555/eijse.v4i1.149
Devina Puspita Sari
{"title":"ANALYSIS STABILITY SYSTEM RUDDER ROLL OF SHIP CARGO A. PIONEER","authors":"Devina Puspita Sari","doi":"10.53555/eijse.v4i1.149","DOIUrl":"https://doi.org/10.53555/eijse.v4i1.149","url":null,"abstract":"Cargo Ship in dire needs good maneuverability while operating in the sea. Maneuverability is influenced by the ship's steering system which also affects the rolling stability of the ship. Rolling stability control plays an important role in the ship that can return the ship to its normal state in response to sea wave disruption, where Rudder roll is able to control the heading until the rolling motion is reduced. The disturbance used is a sea state 1 and sea state 7 in wave linear disturbances. The higher the level of interference, the longer the rolling stability reaches the steady state. The stability performance of rudder roll stabilization system has been in accordance with existing stability parameters. The maneuverability of the rudder roll stabilization system with 200 heading has an advanced distance of 275 meters in diameter.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124347603","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
CAN COMMUNICATION MODEL TO HANDLE VEHICLE CONTROL SYSTEM & ITS APPLICATIONS USING RASPBERRY PI 树莓派通信模型能否处理车辆控制系统及其应用
EPH - International Journal of Science And Engineering Pub Date : 2017-12-27 DOI: 10.53555/eijse.v3i4.118
S. Chikhale, S. Hate
{"title":"CAN COMMUNICATION MODEL TO HANDLE VEHICLE CONTROL SYSTEM & ITS APPLICATIONS USING RASPBERRY PI","authors":"S. Chikhale, S. Hate","doi":"10.53555/eijse.v3i4.118","DOIUrl":"https://doi.org/10.53555/eijse.v3i4.118","url":null,"abstract":"CAN communications helps us to engrave the complex wired source into the simple form. Using raspberry pi CAN bussystem can work effectively to access the vehicle internal ECU parameters and now-a-days different applications withIOT compliance. We can control the vehicle system remotely using the raspberry pi application. Also, not only for the system of vehicle we can control the home equipment’s using this technique. So automation which is the need of future can be effectively managed using the CAN withIOT convergence. We suggest some basic implementation of such scenarios over this paper.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133620934","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
PERFORMANCE ANALYSIS OF HEAT-BASED SMARTCELL PHONE CHARGER 基于热的智能手机充电器性能分析
EPH - International Journal of Science And Engineering Pub Date : 2017-12-27 DOI: 10.53555/eijse.v3i4.109
Mgbachi C. A., Nwobodo H. N
{"title":"PERFORMANCE ANALYSIS OF HEAT-BASED SMARTCELL PHONE CHARGER","authors":"Mgbachi C. A., Nwobodo H. N","doi":"10.53555/eijse.v3i4.109","DOIUrl":"https://doi.org/10.53555/eijse.v3i4.109","url":null,"abstract":"Smart phone services have become all-encompassing in these modern life activities. These phones operate with batteries that provide the necessary electrical power. The batteries’ stored energy often got used up; and the conventional electrical power charging sources like public power supply, generating sets, solar devices among others are not only unreliable but most times totally unavailable in some villages and camp settlements. There was then the need to produce simple, inexpensive and easily accessible battery chargers for the phones. This paper therefore studies and analyses the performance of a locally-made, off-grid and renewable energy power phone charger. The device output voltage, current and hence power has been tested at varying degrees of temperatures. Finally it was tested with different heat sources like, charcoals, Gas- burner, kerosene stove, wood stove, and Camp and Barbecue fires for heat source efficiencies. The results prove that charcoals and gas-burner heat sources are the most efficient heat source for operating the heat-smart- phone charger.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123592403","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
THE HOW, ENERGY FROM CHAOS BECOMES DISCRETE - MONADS 如何，能量从混沌变成离散的单子
EPH - International Journal of Science And Engineering Pub Date : 2017-09-27 DOI: 10.53555/eijse.v3i3.82
Markos Georgallid
{"title":"THE HOW, ENERGY FROM CHAOS BECOMES DISCRETE - MONADS","authors":"Markos Georgallid","doi":"10.53555/eijse.v3i3.82","DOIUrl":"https://doi.org/10.53555/eijse.v3i3.82","url":null,"abstract":"All above happen in , Material-Point , where the Positive ⊕ constituent , is Eternally self-rolling   on the Negative ⊝ constituent , with Angular-Velocity , w , in Infinite Spherical traces , either at Great -circles  or Small-circles , or any other close Spherical-curve , and by Applying all laws of Mechanics into this Energy - Chaos , is thus created the → First – Discrete – Energy - monad , which is the Material Point  i.e. , the Quantum of Physics and ,  of all Energy- Space -Universe .    \u0000 ","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"1088 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116038962","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
RESEARCH ON DIRECT TORQUE CONTROL OF BRUSHLESS DC MOTOR BASED ON NEW STATOR FLUX LINKAGE SETTING 基于新型定子磁链整定的无刷直流电动机直接转矩控制研究
EPH - International Journal of Science And Engineering Pub Date : 2017-09-27 DOI: 10.53555/eijse.v3i3.99
M. Yi, W. Hai-feng, L. Liming, Z. Jiong, Jin Cheng
{"title":"RESEARCH ON DIRECT TORQUE CONTROL OF BRUSHLESS DC MOTOR BASED ON NEW STATOR FLUX LINKAGE SETTING","authors":"M. Yi, W. Hai-feng, L. Liming, Z. Jiong, Jin Cheng","doi":"10.53555/eijse.v3i3.99","DOIUrl":"https://doi.org/10.53555/eijse.v3i3.99","url":null,"abstract":"Aiming at the torque ripple problem of Brushless DC motor, a new stator flux setting method is proposed on the basis of direct torque control system. Firstly, the basic forming principle of traditional stator flux vector locus of circular and hexagonal is analyzed.And then, a new stator flux linkage setting method based on rotor position and dynamic current mode is proposed.The new stator flux linkage method is applied to the direct torque control system of Brushless DC motor.Theoretical analysis shows that the given flux linkage trajectory is consistent with the expected reference value, the torque ripple is smaller. The simulation results verify its effectiveness and are suitable for BLDCM DTC operation.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129045702","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
INTELLIGENT SYSTEMS FOR TESTING KNOWLEDGE IN DISTANCE EDUCATION 远程教育知识测试智能系统
EPH - International Journal of Science And Engineering Pub Date : 2017-09-27 DOI: 10.53555/eijse.v3i3.101
Dr. Jurij Tekutov, Elena Moščenkova, R. Tamelienė
{"title":"INTELLIGENT SYSTEMS FOR TESTING KNOWLEDGE IN DISTANCE EDUCATION","authors":"Dr. Jurij Tekutov, Elena Moščenkova, R. Tamelienė","doi":"10.53555/eijse.v3i3.101","DOIUrl":"https://doi.org/10.53555/eijse.v3i3.101","url":null,"abstract":"The article reviews the issues of testing student knowledge related to the possibility of choosing the correct answer from among several options, and the intelligent knowledge testing systems (ITS), that use open-ended questions for examining student knowledge, i.e., when students are asked to independently construct an answer rather than choose from among various options that are presented to them.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"117 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126409809","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
SIMULATION STUDY OF FINNED DOUBLE PIPE HEAT EXCHANGER 翅片式双管换热器的仿真研究
EPH - International Journal of Science And Engineering Pub Date : 2017-09-27 DOI: 10.53555/eijse.v3i3.95
Anbu Clemensis Johnson, Aws Sadoon Mohammed
{"title":"SIMULATION STUDY OF FINNED DOUBLE PIPE HEAT EXCHANGER","authors":"Anbu Clemensis Johnson, Aws Sadoon Mohammed","doi":"10.53555/eijse.v3i3.95","DOIUrl":"https://doi.org/10.53555/eijse.v3i3.95","url":null,"abstract":"Double pipe heat exchangers are extensively used in process industries. Increasing the surface area of heat exchanger results in enhanced heat transfer. In the current study double pipe heat exchanger was simulated using ANSYS Fluent simulator program. The fins were added to the outer surface of the inner pipe and the geometries studied were, rectangular, triangular and leaf shaped. Water outlet temperature of the heat exchanger was studied with mass flow rates of 0.20 kg/s, 0.24 kg/s and 0.28 kg/s. It was determined that with increase in mass flow rate the outlet temperature of cold water decreased. Higher outlet temperature of cold water was obtained with leaf fins as compared to rectangular, triangular and without-fin cases at mass flow rates of 0.20 kg/s and 0.24 kg/s. The percentage differences in temperature gradient seem to vary with change in mass flow rate. It is shown from the study that the length of heat exchanger with fins could be reduced to half to achieve about 90% of the temperature gradient.","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133417155","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
POLAR PLOTS OF A DIRECTIONAL MICROPHONE WITH REAL-WORLD SOUNDS AND ITS SPECTRUM DISTORTION 具有真实声音的定向麦克风的极坐标图及其频谱失真
EPH - International Journal of Science And Engineering Pub Date : 2017-09-27 DOI: 10.53555/eijse.v3i3.87
Xubao Zhang PhD
{"title":"POLAR PLOTS OF A DIRECTIONAL MICROPHONE WITH REAL-WORLD SOUNDS AND ITS SPECTRUM DISTORTION","authors":"Xubao Zhang PhD","doi":"10.53555/eijse.v3i3.87","DOIUrl":"https://doi.org/10.53555/eijse.v3i3.87","url":null,"abstract":"Some references discussed and evaluated performances of conventional directional microphones in hearing aids, from their conclusions, it is undoubted for the microphones to improve S/N, yet conditions of the advantage somewhat confused to hearing aid clinicians and professionals. To supplement the incompletion, we investigated behaviors of a directional microphone in extensive situations. We built an SimuLink laboratory, selected realistic talking voices and noises from wave files and made many experiments to find out illustrative evidences. Electroacoustic models are used for components of modelling a directional microphone; we operated the microphone with these sounds from real-world to calculate, view, measure and record behaviors of the directional microphone. We acquired  many waveforms, statistics and recordings of the experiments with woman’s and man’s talking voices, and environmental noises; we also listened to sounds at input and output of the directional microphone to perceive changes of the speech naturalness. \u0000Comparing to an omni microphone, the directional microphone does not enhances the speech signals on average; sensitivity-gain of the directional microphone is higher than that of the omni microphone when the tone frequency > 1.78 kHz; the directional microphone cancels the undesired speech well, as well as the babble noise and the environmental white noise from a beamed source at rear side; the directional microphone cannot improve the S/N of a speech within babble or white noise fields; in addition, we also observed and heard the speech spectrum distortion caused by the directional microphone","PeriodicalId":354866,"journal":{"name":"EPH - International Journal of Science And Engineering","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127639055","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
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