Since the introduction of the smartphone, mobile computing has become pervasive in our society. Meanwhile, Mobile devices have evolved far beyond the stereotypical personal devices and been employed in various traditi...
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ISBN:
(纸本)9781450349284
Since the introduction of the smartphone, mobile computing has become pervasive in our society. Meanwhile, Mobile devices have evolved far beyond the stereotypical personal devices and been employed in various traditional real-time embedded domains. Of the currently available mobile systems, Android has seen the most widespread deployment outside of the consumer electronics market. Its open source nature has prompted its ubiquitous adoption in sensing, medical, robotics, and autopilot applications. However, it is not surprising that Android does not provide any real-time guarantee since it is designed as a mobile system and optimised for mobility, user experience, and energy efficiency. Although there has been much interest [1, 2, 3] in adopting Android in real-time contexts, surprisingly little work has been done to examine the suitability of Android for real-time systems. Existing work only provides solutions to traditional problems, including real-time garbage collection at the virtual machine layer, real-time OS scheduling and resource management. While it is critical to address these issues, it is by no means sufficient. After all, Android is a vast system that is more than a Java virtual machine and a kernel. Our work [4, 6, 7] examines the internals of Android, the Android programming model, libraries and core systems services. We discuss the implications and challenges of adapting Android constructs and core system services for real-time and present a solution for each, name RTDroid, as a whole system. It is unique in that it redesigns Android's internal components, replaces Android's Dalvik/art with a real-time Java virtual machine, FijiVM, and leverages off-the-shelf real-time OSes. RTDroid also provides an event-driven programming model [5] for the development of real-time applications. To retain a familiar style of Android application, we make a number of changes to the Android abstractions and how they interact withthe underlying system as well as each
In condition-based maintenance, preventive replacement threshold and inspection scheme play important roles in maintenance performance. Major research considers cost as the main objective for measuring maintenance per...
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Li-ion batteries are widely used in the fields of electric vehicles and energy storage because of high energy density, low self-discharge rate, long cycle life, and wide operation temperature range. To ensure safety a...
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this paper puts forward the experimental course of the combination of reverse and numerical control programming. In the process of experiment teaching, the LK three coordinate measuring machine(CMM) is used to collect...
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this paper puts forward the experimental course of the combination of reverse and numerical control programming. In the process of experiment teaching, the LK three coordinate measuring machine(CMM) is used to collect the data of the object, and NX Siemens software is used to realize the CAD inverse modeling, and then the Powermill numerical control programming software is used to carry on the numerical control programming. through the opening of this experiment, Practice has proved that students not only master the advanced measurement technology, but also master the relevant technology of reverse design and NC programming. It has greatly improved the students' comprehensive application ability and innovation ability, also increased the students' employment competitiveness.
this paper investigates the impact of outcome- based education (OBE) on students' learning achievement from a software engineering (SE) program. It is not easy to transform an SE curriculum from traditional knowle...
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this paper investigates the impact of outcome- based education (OBE) on students' learning achievement from a software engineering (SE) program. It is not easy to transform an SE curriculum from traditional knowledge-based education (KBE) method to OBE method since it requires us to identify the outcomes clearly and map the outcomes withthe expected capabilities of students. We first give a briefing on our SE program and outline the curriculum, then investigate the impact of OBE in two selected courses in SE program, withthe completion of one course being the prequisite for admission into the other one. Experimental results show that OBE can greatly improve the learning effectiveness of students and teaching quality.
the power system is continuously evolving towards a smarter grid by adding intelligent electrical devices that leverage communication technologies to provide visualisation, control and automation. the integration of p...
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Currently, the proportion of leveraged projects grows and leverage complicates the use of traditional project evaluation methods. Capital budgeting/project selection problem uses linear programming to select suitable ...
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Currently, the proportion of leveraged projects grows and leverage complicates the use of traditional project evaluation methods. Capital budgeting/project selection problem uses linear programming to select suitable projects but does not take into account leverage and the existence of tax shield. the aim of the article is to quantify the net present value of leverage projects using the adjusted net present value that takes into account the tax shield. the second step is to select the optimal set of projects that meet the required conditions. Finally, it is analyzed how the selection of projects could be changed if all investment projects were to be funded by equity.
this study focused on the comparative performances of different classification algorithms provided in WEKA such as Neural Network,Na?ve Bayes,Part and J48 Decision Tree classifier in classifying students learning *** ...
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this study focused on the comparative performances of different classification algorithms provided in WEKA such as Neural Network,Na?ve Bayes,Part and J48 Decision Tree classifier in classifying students learning *** student's behavior and navigational patterns have been observed while using a learning management system and eleven attributes have been found to be significant in classifying student's learning styles based on the Felder-Silverman learning style model.A total of 60,158 rows of log and interaction data from 565 students of Computer programming 1 Moodle online course have been extracted.A 10-fold cross validation was used to evaluate the selected *** accuracy,training errors and kappa statistics have been observed to measure the performance of each *** experiment showed that the J48 decision tree technique had the highest collective average value of correctly classified instances at 87.56% accuracy and it could be used to classify the learning styles of students in a Learning Management System.
this paper describes an automated test system for Analog to Digital Converters(ADC)combining various instruments controlled by Lab VIEW,to implement standardbased real-time measurement which accurately characterizes t...
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this paper describes an automated test system for Analog to Digital Converters(ADC)combining various instruments controlled by Lab VIEW,to implement standardbased real-time measurement which accurately characterizes the statistical and dynamic ***,the proposed system provides an automated input parameter sweep-function,which realizes the ADC intelligent automation test with different input *** Instruments(VIs)were created in system program to control signal generation and data *** system is not limited to the type or speed of the ADC under test due to its high compatibility and hardware *** describe in detail the hardware arrangement and software programming,as well as the experimental testing of real ADCs,to demonstrate system's performance.
Bugs epidemic is a widespread outbreak in the rice field in a severe form in the *** year,thirty seven percent(37%) is the estimated average of farmer's rice crops that suffer due to diseases and bugs species *** ...
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Bugs epidemic is a widespread outbreak in the rice field in a severe form in the *** year,thirty seven percent(37%) is the estimated average of farmer's rice crops that suffer due to diseases and bugs species *** species such as Rice Black Bug(RBB) infest rice plants at all growth stages from maximum tilling to ripening *** stated that the practice of inorganic pesticide to RBB would also destroy its natural *** this reason,farmers are advised to avoid spraying inorganic pesticides to control *** a substitute of utilizing pesticides,the government has to support other ways to prevent insect pests.A previous the study shown that these sap-sucking bugs are strongly attracted to high intensity *** study aimed to design and develop Solar-powered Rice Black Bug Light Trap that will help in the rapid production of rice in the industry using Arduino-Microcontroller Unit and C++ programming *** study used questionnaires answered by the respondents,which is divided into five(5) categories;these are the Efficiency,Functionality,Maintainability,Reliability,Usability and Cost-effectiveness of the *** assessed the prototype which is resulted to 3.7 overall weighted mean where expert's response is "Highly Acceptable".
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