Business process management (BPM) enables modeling, executing and monitoring organizational processes to achieve certain business goals. Organizations continue to strive for agility and take advantage of the digital e...
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ISBN:
(纸本)9781538641392
Business process management (BPM) enables modeling, executing and monitoring organizational processes to achieve certain business goals. Organizations continue to strive for agility and take advantage of the digital era to bring flexibility in their processes, for example by integrating complex event processing (CEP) techniques. Event handling specifies how a process interacts with its environment and how the environmental occurrences influence the execution of the process. Though highly expressive and feature-rich languages like BPMN exist for process specification, they still lack the flexibility required for event handling in different real-life scenarios. In this work, an event handling model is proposed that take into account the possibilities of event subscription at different points in time with respect to process execution. The model is grounded formally and provides mapping to Petri Nets as implementation semantics. Further, trace analysis ensures correct execution of process behavior while maintaining the temporal dependencies intact among event subscription, event occurrence, event consumption and event unsubscription.
In order to solve the SiC MOSFETs application problems including asymmetric gate voltage, low threshold voltage, lower short circuit withstand time, higher voltage and current transient rate (dv/dt, di/dt) at switchin...
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ISBN:
(纸本)9781728133997
In order to solve the SiC MOSFETs application problems including asymmetric gate voltage, low threshold voltage, lower short circuit withstand time, higher voltage and current transient rate (dv/dt, di/dt) at switching, this paper proposes a novel SiC MOSFET gate driver with ultra-small size integrated a high performance isolated DC-DC converter. The DC-DC power supply with low coupling capacitance and the active gate Miller clamp are used to reducing the influence of high dv/dt which is produced during switch transition. In addition, the proposed gate driver has a rapid short circuit protection with soft shut down up to 300 kHz switching frequency. Experimental results for a double-pulse test (DPT) bench is presented, demonstrating the anticipative driving effect, rapid protection and high dv/dt immunity. Moreover, thanks to the good performance and ultra-small size, the gate driver has been applied to a xEV drivetrain inverter.
Strategic goals and strategic planning have received much attention in Management Sciences literature since the 60s. In this work, we are interested in putting strategic planning on a formal, algorithmic footing by of...
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ISBN:
(纸本)9781538641392
Strategic goals and strategic planning have received much attention in Management Sciences literature since the 60s. In this work, we are interested in putting strategic planning on a formal, algorithmic footing by offering a formal reasoning technique for automatic generation and selection of strategic plans. Towards this end, in previous work [1] we have introduced the concept of strategic goals and dimensional refinement operators that define strategic goals in terms of domain dimensions from the data warehouses literature. Examples of dimensions for a strategic goal such as "Increase sales in Europe over 2 years" might include time, geography and product type. Here, we propose a formalization of strategic goals and their dimensional refinements that allows one to express a strategic goal model as a planning space that can be achieved across different dimensions. Subsequently, we use automated reasoning solvers to produce optimum strategic plans to achieve such strategic goals. Our proposal is illustrated with an example from the literature.
The modeling process plays an important role in software and systems engineering. Models are often created on paper or whiteboards even though software for modeling exists. We conducted an empirical study to identify ...
The modeling process plays an important role in software and systems engineering. Models are often created on paper or whiteboards even though software for modeling exists. We conducted an empirical study to identify how diagram editing can be improved by investigating how people model on whiteboards. The study was designed as a qualitative study and had 34 participants from four different education fields. The participants were recorded in video and audio while performing two tasks in pairs on a whiteboard. In the first task they had to model a subset of a network plan of the local public transport system. In the second task they had to model the daily schedule of a canteen kitchen. After finishing the tasks, we conducted a semi-structured interview. Using this study, we identified minor different preferences between different education fields and gained several insights for improving diagram editing, e., g., support for drawing sketches concurrently and complementary to models, supporting flexible mechanisms for highlighting different parts of a model, better support for making shapes in the model look consistent.
The proceedings contain 7 papers. The special focus in this conference is on Combinations of Intelligent Methods and Applications. The topics include: Target-dependent sentiment analysis of tweets using bidirectional ...
ISBN:
(纸本)9783319667898
The proceedings contain 7 papers. The special focus in this conference is on Combinations of Intelligent Methods and Applications. The topics include: Target-dependent sentiment analysis of tweets using bidirectional gated recurrent neural networks;traffic modelling, visualisation and prediction for urban mobility management;assurance in reinforcement learning using quantitative verification;distillation of deep learning ensembles as a regularisation method;heuristic constraint answer set programming for manufacturing problems.
The important task in organization of transport in metro network is to elaborate a methodology for optimization the transport plan of metro trains. The establishment of a transport plan includes the routing of metro t...
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The important task in organization of transport in metro network is to elaborate a methodology for optimization the transport plan of metro trains. The establishment of a transport plan includes the routing of metro trains and the number of trains. In the study is elaborated a methodology based of uncertainty of passenger flows. In research is applied fuzzy linear programming method that has been solved by membership function. The methodology was experimented for Sofia's metro network and was proposed an organization of metro trains. In the study have been compared the results of the methodology and the real situation. The presented approach could also be used for solving the transport plan in other type of transport.
This paper designs a high reliability and compact PMSM (permanent magnet synchronous machine) controller based on parallel-connected power MOSFETs with an optimized current sharing technology. The innovative work of t...
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ISBN:
(纸本)9781728133997
This paper designs a high reliability and compact PMSM (permanent magnet synchronous machine) controller based on parallel-connected power MOSFETs with an optimized current sharing technology. The innovative work of the paper is as follows: 1. Using self-made pioneering induction coils to select MOSFET with similar performance. 2. The positive voltage and negative voltage are used as the driving circuit to control the power unit, so that the power unit of the same bridge arm can work as synchronously as possible. 3. In the event of a misoperation, multiple protection schemes can turn off the drive signal effectively, thereby ensuring the safety of the power MOSFET. 4. In order to create a high-power output environment, the dual PMSM and dual controller pair drag test is adopted in the experiment which proved the controller can still operate stably even after operating under a 270V voltage and a 30A current. The main contribution of the key technology of the configuration of high current power devices proposed in this paper is to study the controller of high power density motor matching large torque motor and to provide support for the research of robot high power density drive system.
The proceedings contain 16 papers. The topics discussed include: angular dispersion modelling for 5G wireless link with directional antennas;shielding protection comparison for security camera lenses;development and t...
ISBN:
(纸本)9781538647493
The proceedings contain 16 papers. The topics discussed include: angular dispersion modelling for 5G wireless link with directional antennas;shielding protection comparison for security camera lenses;development and testing of a compact voice command recognition algorithm for limited complexity microcontroller devices;design and implementation of an expressive talking mobile robot: TozTorUs;drive mode estimation for electric vehicles via fuzzy logic;evaluation index system of power supply margin in distribution network;turbine fast valving study by the use of a steam turbine real-time simulator;optimal power and signal cables arrangement for minimizing electromagnetic interference in oil and gas industry;neuron circuit based on CCII;optimization of medium voltage distribution network structure based on total supply capability improvement;analysis, design and simulation of buck converter for photovoltaic system;combined electricity and hydraulic analysis of cascade heating supply infrastructure with EA-PSM software;low-cost solution for magnetic field mapping device;design of wireless sensor networks for building management systems;study on mobility and migration in a fog computing environment;and WCNE: a weighted clusterhead node election algorithm for MANET.
We apply the SIMP (Solid Isotropic Material with Penalization) method for the topology optimization of an electromagnetic actuator. Thereby, the gradient of the objective function is computed by the adjoint method. Th...
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ISBN:
(数字)9781728155920
ISBN:
(纸本)9781728155937
We apply the SIMP (Solid Isotropic Material with Penalization) method for the topology optimization of an electromagnetic actuator. Thereby, the gradient of the objective function is computed by the adjoint method. The objective to maximize is the electromagnetic force between yoke and anchor, including the consideration of nonlinear material behaviour. Additionally, the pros and cons between topology optimization and a gradient free optimization method are considered.
Matching concept descriptions against concept patterns was introduced as a new inference task in Description logics two decades ago, motivated by applications in the Classic system. Shortly afterwards, a polynomial-ti...
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