Showing 1-25 of 1,112 resultsfor "Index Terms":Molar Conductance
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Electrical Analyses of Germanium MIS Structure and Spectroscopic Measurement of the Interface Trap Density in an Insulator/Germanium Interface at Room Temperature
In this paper, we present an equivalent circuit model of a germanium (Ge) MIS structure that is biased in the inversion region, which includes the effects of the high intrinsic carrier density and high diffusion-limited conductance of the Ge substrate at room temperature. The model can successfully express the gate bias and frequency dependences of the capacitance characteristics that are specific...Show More
A metric based battery thermal design approach
Yettella Siva Prasad Reddy;Anirudh Upadhyaya;Vittilapuram Kannan Subramanian
2021 IEEE Transportation Electrification Conference (ITEC-India)
Year: 2021 | Conference Paper |
The rapid advancements in Lithium-ion cell design and chemistry demands a quicker adaptation in battery design for optimal use of cell. Thermal design of a battery pack is one of the critical and time-consuming topics during development, as the designer needs to perform multiple tasks - select the thermal concepts, perform simulations, and evaluate them against the requirements within the given bo...Show More
Measurements of Thermal Boundary Conductance Across α-GeTe/c-GeTe Interfaces
J. Warzoha;Brian F. Donovan;Ionatan Soule;Laura Ruppalt;James Champlain
2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm)
Year: 2020 | Conference Paper |
Cited by: Papers (2)
Chalcogenide glasses play a pivotal role in phase change memory storage and RF devices due to a significant disparity in electrical conduction across an amorphous-crystalline phase transition. Knowledge of thermal transport properties, both within the material and across its boundaries, is critical to predict their behavior in packaging architectures and prevent failure during operation. However, ...Show More
Influence of gate insulator and AlGaN barrier layer on MISHEMT conduction mechanisms
2023 37th Symposium on Microelectronics Technology and Devices (SBMicro)
Year: 2023 | Conference Paper |
The drain current in the Metal-Insulator-Semiconductor High Electron Mobility Transistor (MISHEMT) is studied as a function of AlGaN barrier layer thickness, Al molar fraction, and also the gate insulator thickness, focusing on the different MISHEMT conduction mechanisms. The device has a Si3N4/AlGAN/AlN/GaN heterostructure with 2 channels in the barrier layer - AlGaN (one field effect channel and...Show More
Taylor series expression based equivalent circuit models of LEDs for analysis of LED driver system
2011 IEEE Industry Applications Society Annual Meeting
Year: 2011 | Conference Paper |
Cited by: Papers (2)
This paper presents the Taylor series expression based equivalent circuit models of light emitting diodes (LEDs) for the analysis of the LED driver system. In order to describe the non-linear V-I characteristics of LEDs, Taylor series can be used to express the equivalent conductance components in the DC and AC equivalent circuit models of LEDs. Based on the Taylor series expression, the equivalen...Show More
Shunt active power filter control using signal of load equivalent conductance in asymmetrical three-phase systems under nonsinusoidal conditions
2016 International Conference on Signals and Electronic Systems (ICSES)
Year: 2016 | Conference Paper |
Cited by: Papers (2)
Shunt active power filters (SAPF) can be controlled using conductance signal related to the load active power. The distinctive feature of the considered control method is that certain changes of energy stored in the active filter's reactance elements are utilized as the source of information concerning the load power and then the reference signal for the SAPF action. Particularly difficult SAPF op...Show More
Effect of strain relaxation on the drain conductance in AlGaN/GaN HEMTs
2012 International Conference on Engineering and Technology (ICET)
Year: 2012 | Conference Paper |
Cited by: Papers (1)
The aim of this work is to study the potential offered by microwave power in the device AlmGa1-mN/GaN HEMT. The effects of technological and electrical parameters such as the aluminum mole fraction "m", the thickness of the AlGaN doped layer "dd" and doping concentration "Nd" in the output conductance are studied taking into account the effects of spontaneous and piezoelectric polarizations in the...Show More
Strain relaxation and thermal effects on the drain conductance in AlGaN/GaN HEMT
2013 Saudi International Electronics, Communications and Photonics Conference
Year: 2013 | Conference Paper |
Cited by: Papers (1)
In this work the effects of technological and electrical parameters of AlmGa1-mN/GaN High Electron Mobility Transistors (HEMT) on the output conductance "gd" was studied in the first part. In the second part, the effect on gd of thermal and self heating in the device was analyzed. This study was made by taking into account the effects of spontaneous and piezoelectric polarizations in the heterojun...Show More
An effective conductance cancellation method with minimal design effort
2014 IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS)
Year: 2014 | Conference Paper |
An easy-to-implement conductance cancellation method is proposed. To be specific, the only design work involved in the proposed method is to size a transistor in the negative conductance of the NMOS side. In addition, without the aid of any tuning or calibration circuit and under all process corners, the method is able to maintain a DC gain enhancement of over 28.9dB under temperatures between -40...Show More
An equation for the global speed stability bounds in the variable frequency induction motor drive
International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion
Year: 2012 | Conference Paper |
Results of algebraic formulation for the global frequency stability bounds in the adjustable-speed induction motor drive are presented. The analysis is based on identifying system regenerative bounds with those of the self-excited generation mode. Under the condition, the speed limits will be determined by motor inherent capacity for own saturation while the associated steady-state oscillations wi...Show More
A Detection of Tissue Electroporation with Very Short High Voltage Impulse
2019 5th International Conference on Science and Technology (ICST)
Year: 2019 | Conference Paper |
Electrical properties i.e. conductance of biological tissues have been studied to understand electro-poration (EP). The increase of the electrical conductance after short electric pulses has been considered as an important indication of EP. In this paper an attempt has been made to detect EP during single electric pulse from experimental data. The conductance data collected from EP of a sheep musc...Show More
Simulation and Design of Nanocircuits With Resonant Tunneling Devices
Janet Meiling Wang;Bharat Sukhwani;Uday Padmanabhan;Dongsheng Ma;Kartik Sinha
New nanotechnology-based devices are being researched to replace CMOS devices in order to overcome CMOS technology's scaling limitations. However, many such devices exhibit nonmonotonic I-V characteristics and uncertain properties which lead to the negative differential resistance (NDR) problem and the chaotic performance. This paper proposes two new circuit simulation approaches that can effectiv...Show More
Calculation of equivalent thermal conductivity of Gasar porous materials
2011 International Conference on Electric Information and Control Engineering
Year: 2011 | Conference Paper |
On the basis of special features of porous structures of Porous materials Gasar (GASAR) were made three mathematical models of structural elements GASAR, including models with cylindrical, conical and elliptical pores, and accordingly obtained formulas for calculation of Equivalent thermal conductivity of three models by means of determination of minimal thermal resistance. It was discovered that ...Show More
Spectrum folding and phase noise in LC tuned oscillators
We present a theory of the noise transfer in LC tuned oscillators accounting for the nonlinear operation of the transconductor. We show that the transconductor switching causes a folding of the wide-band noise such as the thermal noise of the spreading resistance of the bipolar transistors and the noise of the tail current generator. The effect is similar to what happens in sampled systems, howeve...Show More
Effective conductivity of cell suspensions
Using finite-element method (FEM) effective conductivity of a cell suspension was calculated for different cell volume fractions and membrane conductivities. Cells were modeled as spheres having equivalent conductivity and were organized in cubic lattices, layers and clusters. The results were compared to different analytical expressions for effective conductivity and they showed that Maxwell theo...Show More
A method is proposed for the design of parallel feedback DR oscillators where output power, frequency stability and other basic performance parameters are simultaneously taken as design objectives. After introducing suitable performance indexes which define the stability and self-starting capability of the oscillator, an efficient procedure aimed at searching for the optimal compromise between opp...Show More
Prediction of thermal contact resistances and temperature distribution at different joints in helix traveling-wave tubes
Vishant Gahlaut;R. K. Sharma;S. M. Sharma;V. Srivastava;S. K. Ghosh
2011 IEEE International Vacuum Electronics Conference (IVEC)
Year: 2011 | Conference Paper |
Cited by: Papers (1)
Improper fitting of helix bundle to rod and rod to barren envelope leads to high thermal resistances and hence restricts average power handling capability of a TWT. In this paper, authors have calculated thermal resistances at different joints of a helix traveling-wave tube (TWT), analytically and validated with COSMOS software.Show More
Imperfect condensers usually are represented by equivalent electrical circuits consisting either of a pure capacitance and a resistance in series or by a pure capacitance and a resistance (or conductance) in parallel. Algebraic relationships existing among these circuit parameters are well known and commonly are used in dielectric study and electric circuit computations. For most dielectrics the e...Show More
Modeling for Equivalent Thermal Conductivity of Heat Pipe Considering the Influence of Multiple Factors
2023 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)
Year: 2023 | Conference Paper |
As an efficient heat transfer element, heat pipes are widely used in heat dissipation. In order to accurately and quickly calculate the equivalent thermal conductivity of heat pipes, this paper uses the equivalent thermal network method, and the equivalent thermal network model of the heat pipes is established to obtain the calculation formula of the equivalent thermal conductivity of the heat pip...Show More
Switzerland is one of the few countries fortunate in having at its disposal more water power than its inhabitants can use conveniently. Hydroelectric power now is supplied to 90 per cent of the total population and to 98 per cent of all municipalities.Show More
A stepwise constant conductance approach for simulating resonant tunneling diodes
2005 IEEE International Symposium on Circuits and Systems (ISCAS)
Year: 2005 | Conference Paper |
Current CMOS technology is reaching its scaling limits and thus the CMOS based devices are slowly being replaced by new nanotechnology devices. These nanotechnology devices, however, pose some simulation challenges due to their non-monotonic I-V characteristics and uncertain properties which lead to the negative differential resistance (NDR) problem and the chaotic performance of the simulator. Th...Show More
A METHODICAL APPROACH TO DETERMINE IMPORTANT THERMAL PARAMETERS OF A PERMANENT MAGNET ALTERNATOR
The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
Year: 2020 | Conference Paper |
This paper presents a thermal analysis methodology of a permanent magnet (PM) machine used in an aerospace application. Thermal uncertainties and important thermal parameters due to manufacture and assembly have been exploited by conducting several thermal tests in the machine pre-assembly stages. Steady state DC thermal tests of the stator windings at standstill are crucial to understand the main...Show More
Electrical Modeling and Analysis of a Mixed Carbon Nanotube Based Differential Through Silicon via in 3-D Integration
Based on the extracted equivalent parasitic parameters, the distributed transmission line model of a mixed carbon nanotube bundle (MCB) built signal-ground-signal-type differential through silicon via (TSV) is established and validated against the multiconductor transmission line model (MTL) results and predictive experiment results over a wide frequency range. Using the proposed model, the effect...Show More
The Hodgkin-Huxley description of electrically excitable conductances is combined with the Eccles description of synaptic conductances to provide the basis of an electronic model of nerve-cell membrane. The models are used to explore neuroelectric interactions between spatially distributed regions of a single neuron and neuroelectric activities in very small groups of neurons. Among other things, ...Show More
Design of detection electrode on contactless conductivity detection in capillary electrophoresis microchip
The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems
Year: 2013 | Conference Paper |
Contactless conductivity detection has attained great attention in the last decade in capillary electrophoresis. But contactless conductivity detection is restricted by its sensitivity, how to improve detection sensitivity has become the key of contactless conductivity. In this paper a novel extended model for the detection cell consisting of a network of resistors and capacitors is proposed accor...Show More
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