2019 27th Iranian Conference on Electrical Engineering (ICEE)最新文献_第7页

5–6 GHz Dual-Vector Phase Shifter in 0.18 µm LID CMOS 5-6 GHz双矢量移相器，0.18µm LID CMOS

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786542

Armin Choopani, M. Fakharzadeh, A. Safarian

引用次数: 1

An iterative LMA method for parameter estimation in dynamic modeling of TGFβ pathway using ODE 基于ODE的tgf - β通路动态建模参数估计的迭代LMA方法

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786632

Pooya Borzou, J. Ghaisari, I. Izadi, Y. Gheisari

{"title":"An iterative LMA method for parameter estimation in dynamic modeling of TGFβ pathway using ODE","authors":"Pooya Borzou, J. Ghaisari, I. Izadi, Y. Gheisari","doi":"10.1109/IranianCEE.2019.8786632","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786632","url":null,"abstract":"Transforming Growth Factor (TGF) β signalling pathway is a key regulator of a variety of biological processes in physiological and pathological conditions. In spite of numerous investigations, the dynamics of this complex pathway is largely unknown. Hence, developing mathematical models can pave the way for discovering novel therapeutics. The pathway model has unknown parameters that could be estimated using experimental data. Nonlinear least square methods are commonly used to solve this problem. Because of the difficulties of measuring biological data and its high cost, most of the experiments on this pathway have few data samples. This makes parameter estimation harder and in some cases, with non-unique solutions. In this paper, first a model of TGFβ pathway and its parameters are chosen from the literature. After simulation, model outputs are sampled and used to estimate model parameters. A small number of samples are selected to emulate experimental data. After estimating model parameters multiple times with different initial points, estimation results are compared with the actual value of each parameter by analysing its probability distribution function. In addition, an iterative Levenberg-Marquardt algorithm (LMA) method is proposed in which parameters are divided into groups depending on the state variables they affect. Then, only one group of parameters is estimated in each iteration. Simulation results show the efficiency of the proposed method. By testing the method on the TGFβ model it is shown that it is able to find the optimum point of model residual and solves big network estimation problems with less computation cost.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"151 1","pages":"1140-1144"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73702477","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: 3

Optimal Design of Passive Permanent Magnet Bearings 被动永磁轴承的优化设计

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786766

R. Safaeian, H. Heydari

引用次数: 4

Efficient Wide Range Telecom Wavelength Conversion in Hydrogenated-Amorphous Silicon-Polymer Waveguide 氢化-非晶硅-聚合物波导中的高效宽范围通信波长转换

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786651

Babak Janjan, V. Ahmadi, D. Fathi, M. Heidari

引用次数: 1

Root Cause Analysis of Process Faults Using Alarm Data 基于告警数据的流程故障根本原因分析

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786718

Ali Noroozifar, I. Izadi

引用次数: 3

Low Power Approximate Unsigned Divider Design Using Gate Diffusion Input Logic 采用门扩散输入逻辑的低功耗近似无符号分频器设计

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786452

Mohammad Heidary Takaby, S. Sayedi

{"title":"Low Power Approximate Unsigned Divider Design Using Gate Diffusion Input Logic","authors":"Mohammad Heidary Takaby, S. Sayedi","doi":"10.1109/IranianCEE.2019.8786452","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786452","url":null,"abstract":"With the advancement of technology in recent decades and increase of integrated circuits density, the importance of power consumption in design of electronic circuits is steadily increasing. Among the four basic and widely used computational units, division unit has most complexity, so design improvement of this unit has a significant impact on the hardware complexity of the related system. To implement the circuit, GDI is a suitable logic structure to be used. In this structure, the design of complex circuits can be done with less number of transistors and less power consumption. In some applications in digital signal and image processing like machine vision and machine learning, if there are some inaccuracies in calculations, the system still has capability of producing output in an acceptable accuracy range. In this paper, an unsigned approximate division algorithm is proposed and implemented in GDI structure with the aim of reducing the hardware complexity of divider unit. Simulation results reveal that proposed divider implemented in GDI structure compared to its CMOS counterpart show a reduction of 61% in dynamic power consumption, 41% in delay and 69% in area.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"119 1","pages":"66-70"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79420401","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

A Broadband Fixed Phase Shifter in Substrate Integrated Waveguide Technology 衬底集成波导技术中的宽带固定移相器

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786700

A. K. Horestani, F. Sadeghikia, Z. Shaterian

引用次数: 1

Titanium Trisulfide as Sensitive Gas Sensor 三硫化钛作为灵敏气体传感器

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786396

Seyyed Mohammad Sadegh Seyyedi, M. Pourfath

引用次数: 0

Design, Fabrication, and Testing of a Shore-line Wave Energy Converter with Mechanical Gear Motion Rectifier 带机械齿轮运动整流器的岸线波能转换器的设计、制造和测试

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786426

M. Pendar, Hamed Sarjan

{"title":"Design, Fabrication, and Testing of a Shore-line Wave Energy Converter with Mechanical Gear Motion Rectifier","authors":"M. Pendar, Hamed Sarjan","doi":"10.1109/IranianCEE.2019.8786426","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786426","url":null,"abstract":"The technology of ocean Wave Energy Converters (WEC) has dramatically developed during recent years. These WECs apply various power take-off (PTO) system which are continuing to improve. Different types of PTOs such as hydroelectric, electromagnetic and air turbine systems have been introduced in different relevant studies. The most significant challenge in ocean WECs is related to different power take-off systems. This work introduces a new development of a WEC from a concept of taking energy from ocean waves to the prototype stage and testing along the southern coast of the Caspian Sea. The point absorber Single-body WEC, which is a popular design, was selected to model the proposed system under different conditions, including irregular and regular waves. The bi-directional motion of a wave is converted to the unidirectional motion which rotates the generator by the proposed PTO system that named “Mechanical Gear Rectifier” (MGR), in which a new pinion system is applied. A prototype of our small-scale WEC was designed, built, and then a close analysis of it is performed. Finally, the performance of proposed WEC carefully tested in different wave conditions (regular and irregular waves). The simulation results demonstrate the high efficiency of the proposed MGR-WEC.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"8 1","pages":"2100-2105"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85369972","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

A Seven-Port Receiver for MIMO 2x2 Communication Systems 用于MIMO 2x2通信系统的七端口接收器

2019 27th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2019-04-01 DOI: 10.1109/IranianCEE.2019.8786755

Mehran Hazer-Sahlabadi, A. Abdipour, A. Mohammadi

引用次数: 0