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In this paper, a new zone radius determination algorithm, based on an adaptive nature-inspired routing protocol that emulates the foraging behavior of bees and their ability to find an optimal route from the hive to the nectar sites, is proposed. Instead of tuning one-hop-by-one-hop radius of nodes as in IZRP, our proposed algorithm uses the difference zone radii between adjacent nodes to calibrate...
The coverage problems have been studied in the recent years, most of them with limited detection capability therefore some pivotal sensors consume energy rapidly and there exist a large amount of partially unused sensors when the network lifetime terminated. We introduce an M-M (multiple sensors to multiple targets) probabilistic target coverage problem and its service solution for the wireless sensor...
A hydraulic actuation system for a tilting train is usually composed of independent actuators to remove position errors due to bulk modulus of the hydraulic system. For the hydraulic control system using two independent cylinders, this paper presents the modeling of the hydraulic system, control logic, and simulation results of the hydraulic control system. Simulation results for motion responses...
We previous proposed a dynamical sequential task allocation and reallocation method to resolve a new task assignment domain: dynamical mobile task allocation, by which tasks can move randomly before they are assigned robots to execute, is the condition in which tasks and robots are allowed to be time-dependent before assigned robots to accomplish the relational tasks. It was demonstrated that our...
Though an inverted pendulum is one of the typical examples of nonlinear control systems, it is shown that the inverted pendulum is not feedback linearizable. Saeki proposed a new method to design a backstepping-like controller. This paper presents a swing up controller by combining Saeki's method with the energy function method. First, we give the control input of the cart to cancel the effect of...
The multi-tenant cloud computing infrastructure has become popular because many service providers can deliver their services through it. In dataflow processing applications, the dataflow need to be sequentially processed by a lot of processing components that are provided by different service providers. In order to prevent malicious attackers from modifying processing results or providing incorrect...
The coverage problems have been studied in the recent years, most of them with limited detection capability therefore some pivotal sensors consume energy rapidly and there exist a large amount of partially unused sensors when the network lifetime terminated. We introduce an M-M (multiple sensors to multiple targets) probabilistic target coverage problem and its service solution for the wireless sensor...
A new topography simulation method has been developed for SF6/O2/Si plasma etching of trench gates in IGBTs. This method calculates the ion and fluorine radical flux parameters required for the topography simulation from the etching rate and selectivity obtained from simple basic experiments. The O radical flux was assumed as a function of the operating conditions and the function form was determined...
Ion implantation profiles of boron after a BF3 plasma immersion ion implantation in a plasma implanter with a pulsed voltage ion extraction were investigated both experimentally and by means of numerical simulation. Boron profiles for different ion implantation doses in the range 1015 to 1017 cm−2 were measured using the SIMS method. Simulations were performed using a Monte-Carlo based binary-collision...
This paper is to study the characteristics of nanowire-CMOS and effect of increasing of numbers of nanowires in transistors on the nanowire-CMOS characteristics. This study used MuGFET simulation tool to produce the characteristics of nanowire transistors and used as input to MATLAB software to produce the characteristics of nanowire-CMOS. Increasing channel nanowires in P-channel transistor tends...
We demonstrated an ultra small 12 channels 400GHz AWG on SOI with flattened spectral response using a MMI mode shaper. Insertion loss and crosstalk are −3.29db and 17.0db, respectively. The device size is only 560×350µm2.
In this paper, sensor deployment strategies are studied for effective coverage in wireless sensor networks. In the proposed algorithms, each sensor discovers the coverage holes within its Voronoi polygons, and then moves in a proper direction to minimize them. Novel edge-based and vertex-based strategies are proposed for efficient sensor deployment, and their features are compared with existing techniques...
A review of Geant4 model and benchmark developments in the framework of an Electron Shielding project sponsored by ESA is presented. It includes extensions of electron ionisation models to lower energies, development of a new standard model of bremsstrahlung and a new angular generator of bremsstrahlung, and new standard models of Compton and Rayleigh scattering. New validation benchmarks have been...
We present here a numerically simulated pH sensing performance of Si nanowire (SiNW) FETs. The simulation is formulated based on Fermi-Dirac, Poisson-Boltzman, site-binding and Gouy-Chapman-Stern theories. Device characteristics (Vt, SS, On/Off, etc.) and pH sensing linearity/sensitivity from simulation match well with our sensing experiments using SiNW FETs fabricated with CMOS compatible process...
High power InGaN-based blue LEDs have been commercialized despite the presence of a high dislocation density in the heteroepitaxial structures. Traditional trial-and-error techniques are very inefficient for improving the process of MOVCD. We analyze the relationship between spontaneous, piezoelectric polarization and crystal defaults by adjusting screening values. The simulation results shows to...
Despite its great success, BitTorrent suffers from a content unavailability problem where peers can not complete their content downloads due to some missing chunks, which is caused by an absence of seeders. Multi-swarm collaboration approach is a natural choice for improving the content avail- ability, since the content unavailability can not be managed by one swarm easily. Most existing multi-swarm...
This paper describes features of a new anisotropic etching simulator and its applications on predicting etching shape of quartz crystal. The simulator is suitable to predict etching profiles of two-dimensional initial shape which has a profile formed by straight lines. In this simulator, a program flow with uneven time step was used to furthest reduced the probability of improper shape prediction...
we selected the northern slope of Qilian Mountain as typical study area, so as to detailed study the influence of forest on runoff. Firstly, we divided the study area into different basin-based units( a total of 20 basins from southeast to northwest), then we classified all basins into 7 groups though clustering analysis based on basin features, meteorological and hydrological features data, forest...
The thermo-fluid dynamics of Czochralski (CZ) process for growing 8-inch boron-doped solar grade (SG) ingots is investigated. The thermo-fluid field with argon gas and a silicon melt in a 22-inch hot zone was simulated using CGSim software. The crystallization interface deforms during the CZ process due to crystal pulling and crystal length variant. The results showed that the crystalline front is...
Quantizer design for lossy compression with mismatched side information (SI) at the decoder is investigated. The statistical dependency between the source and SI is assumed to be a function of a random variable, dependency variable (DV). According to the available information about the DV, three design methods are proposed; namely, minimax solution, Average Distribution and Multi-Mode Decoder. The...
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