Task Program

2016 ◽  
Author(s):  
H. M. Kingston ◽  
M. L. Kingston
Keyword(s):  
2014 ◽  
Vol 532 ◽  
pp. 62-69
Author(s):  
Yi Chuan Gao ◽  
Guo Chang Liu

A novel actuator controller for greenhouse control system is proposed in this paper. This controller can solve the problems existing in traditional greenhouse control system such as generating electric arc, short circuit risk, lack of communication and smart ability. We adopt five separate magnetic latching relays to control the three-phase motor. In order to prevent generating electric arc in the process of turning off relay, the alternating current zero-crossing detection circuit is designed. In software side, the relay-off task program is running in the real-time operating system, which can ensure turn-off operation at the point of alternating current zero-crossing. In addition, the controller is capable of detecting motors operation parameter and having multiple communication interfaces. Finally, we implement our controller in practice and experimental results meet the design requirements.


2006 ◽  
Vol 17 (02) ◽  
pp. 251-270 ◽  
Author(s):  
THOMAS RAUBER ◽  
GUDULA RÜNGER

Multiprocessor task (M-task) programming is a suitable parallel programming model for coding application problems with an inherent modular structure. An M-task can be executed on a group of processors of arbitrary size, concurrently to other M-tasks of the same application program. The data of a multiprocessor task program usually include composed data structures, like vectors or arrays. For distributed memory machines or cluster platforms, those composed data structures are distributed within one or more processor groups. Thus, a concise parallel programming model for M-tasks requires a standardized distributed data format for composed data structures. Additionally, functions for data re-distribution with respect to different data distributions and different processor group layouts are needed to glue program parts together. In this paper, we present a data re-distribution library which extends the M-task programming with Tlib, a library providing operations to split processor groups and to map M-tasks to processor groups.


Author(s):  
Sohyune Sok ◽  
Eunyoung Shin ◽  
Seyoon Kim ◽  
Myeongshin Kim

The elderly population in Korea is rapidly increasing. It is necessary to develop multi-faceted and complex interventions for prevention and delay of dementia, balance improvement, and physical activity, among the elderly living in the community. This study aimed to examine the effects of the cognitive/exercise dual-task program on cognitive function, health status, depression, and life satisfaction of the elderly living in the community. A quasi-experimental study design using a pretest-posttest control group was employed. The study included a total of 65 elderly participants (intervention: n = 32, control: n = 33) in Seoul, South Korea. The cognitive/exercise dual-task program as an intervention was composed of 20 sessions for a total of 10 weeks, held twice a week for about 50 min each session. Measures were general characteristics of study participants, the Korean version of Mini-Mental State Examination (MMSE-K), Korean elderly health status assessment tool, Korean version of Geriatric Depression Scale, and the elderly life satisfaction scale. Data were collected from October 2020 to March 2021. There were statistically significant differences on cognitive function, health status, depression, and life satisfaction between two groups. The cognitive/exercise dual-task program was an effective intervention for improving cognitive function, health status, and life satisfaction, and for decreasing depression of the elderly living in the community. Health care providers need to pay attention to cognitive/exercise dual-task programs for elderly living in the community.


1984 ◽  
Vol 54 (2) ◽  
pp. 483-490 ◽  
Author(s):  
Donald B. Bailey ◽  
William N. Bender ◽  
Gary B. Stuck ◽  
Marvin D. Wyne

Peer ratings of the behaviors of 42 third and 73 sixth grade low-achieving children were examined to assess the extent co which effects of a highly structured time-on-task program generalized to the regular classroom. When compared with low-achieving peers who received supplementary remedial instruction in basic skills in a tutorial program, time-on-task students received significantly higher post-intervention peer ratings on task orientation. These results indicated that effects on task orientation generalized to the regular class, but effects on classroom misbehavior or social acceptance did not generalize. Implications for the availability of time-on-task in classrooms were discussed.


2013 ◽  
Vol 347-350 ◽  
pp. 1589-1593
Author(s):  
Yan Xin Yang ◽  
Huan Zou ◽  
Xue Ping Zhang

In order to accomplish the real-time simulation application of embedded Ethernet parallel system, the DSP boot mode and the loading process are researched according to the analysis of the parallel simulation system structure and the basic characteristic of BF548 loader file structure. It has proposed a multiple-load method which is a kind of download method based on initialization code. Task program can automatic download after DSP launched in this way, and the problem of complex download procedure of DSP parallel system is solved. Through the actual test, the feasibility and validity of the download method have been verified, that provide a convenient and flexible experimental method and implementation technique of parallel simulation.


2010 ◽  
Vol 16 ◽  
pp. S53
Author(s):  
S. Pajares ◽  
C. González ◽  
O. Robles ◽  
P. Casado ◽  
A. Gómez ◽  
...  

2011 ◽  
Vol 23 (5) ◽  
pp. 707-711 ◽  
Author(s):  
Myung Hwan Ahn ◽  
Chang Sik Ahn ◽  
Myung Chul Kim

2021 ◽  
Author(s):  
Haowei Sun ◽  
Peiwei Sun

Abstract Due to the small size, the high-power density and the strong environmental adaptability, the heat pipe cooled reactor has a broad application prospect in the fields of space exploration, underwater vehicle power system and other fields[1]. It will be one of the subversive technologies which will change the future nuclear power development. The safe operation of the heat pipe cooled reactor requires an effective power control system. 3KeyMaster is a comprehensive real-time simulation analysis platform and the control system can be built by using its logic module. The interface program can be developed in its task program, and other program can be integrated in this platform[2]. The system program of the heat pipe cooled reactor has compiled as a dynamic linking library. Through the task program of the 3KeyMaster simulation platform to call the dynamic linking library by using C++ program, the system program is coupled with the 3KeyMaster simulation platform. The modules of 3KeyMaster platform exchange data with the system program by shared memory. Through the responses of the temperature due to step change in the reactor power obtained by 3KeyMaster, the transfer functions are obtained by using the system identification module in MATLAB & Simulink. The power disturbance is introduced, and simulation is carried out on the 3KeyMaster. The changes of the important parameters are analyzed to obtain its dynamic characteristics. Based on the dynamic analysis on the system responses, the control strategy for the power control system is proposed. The power control system is implemented in MATLAB & Simulink. The control system parameters are tuned to determine a group of suitable control parameters[3]. Finally, the control performance of power control system is evaluated by simulations.


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