A Customer-Oriented Method to Support Multi-Tasks Scheduling Under Uncertain Time in Cloud Manufacturing

2021 ◽  
Author(s):  
Huagang Tong ◽  
Jianjun Zhu
Keyword(s):  
Cloud Manufacturing ◽  
Tasks Scheduling ◽  
Uncertain Time

Synchronization of Chaotic Systems with Uncertain Time-Varying Parameters

2015 ◽  
Vol 9 (6) ◽  
pp. 568
Author(s):  
Ahmad Al-Jarrah ◽  
Mohammad Ababneh ◽  
Suleiman Bani Hani ◽  
Khalid Al-Widyan
Keyword(s):  
Chaotic Systems ◽  
Time Varying ◽  
Varying Parameters ◽  
Time Varying Parameters ◽  
Uncertain Time

PROTECTION OF INTELLECTUAL PROPERTY ASSOCIATED WITH THE EXPLORATION OF OUTER SPACE

2019 ◽  
pp. 21-26
Author(s):  
A.V. Bagrov
Keyword(s):  
Intellectual Property ◽  
Industrial Revolution ◽  
Outer Space ◽  
Patent Law ◽  
Patent Holder ◽  
Space Flights ◽  
Innovative Solutions ◽  
Space Law ◽  
Uncertain Time

Patent law, which arose at the beginning of the industrial revolution and protects the rights of the patent holder solely on the territory of patenting, does not apply to inventions used in outer space. Space is not included in any patenting territory. It is necessary on a new basis to form the space law on the protection of innovative solutions, which will take into account the uncertain time between the filing of an application for an invention and its first use in space. Now it often exceeds the generally accepted period of validity of patents. For space patents, it is advisable to establish their validity for at least 50 years from the date of first use. All outer space, including all objects located in it, is proposed to be declared a single patent territory. It is necessary to exclude duties on the maintenance of patents used in space flights, if they are used only by the developer or are transferred to them for free leasing.

Finite-time control of uncertain time-varying systems in p-normal form

2020 ◽  
Author(s):  
Kanya Rattanamongkhonkun ◽  
Radom Pongvuthithum ◽  
Chulin Likasiri
Keyword(s):  
Normal Form ◽  
Finite Time ◽  
Control Law ◽  
Time Varying ◽  
Time Control ◽  
Special Cases ◽  
Time Varying Systems ◽  
A Chain ◽  
Uncertain Time ◽  
Power Integrator

Abstract This paper addresses a finite-time regulation problem for time-varying nonlinear systems in p-normal form. This class of time-varying systems includes a well-known lower-triangular system and a chain of power integrator systems as special cases. No growth condition on time-varying uncertainties is imposed. The control law can guarantee that all closed-loop trajectories are bounded and well defined. Furthermore, all states converge to zero in finite time.

scholarly journals An Adaptive Scheduler for Real-Time Operating Systems to Extend WSN Nodes Lifetime

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Roberto Rodriguez-Zurrunero ◽  
Ramiro Utrilla ◽  
Elena Romero ◽  
Alvaro Araujo
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
Research Area ◽  
Rechargeable Batteries ◽  
Wireless Sensor ◽  
Portable Devices ◽  
Wireless Devices ◽  
Changing Environments ◽  
Tasks Scheduling

Wireless Sensor Networks (WSNs) are a growing research area as a large of number portable devices are being developed. This fact makes operating systems (OS) useful to homogenize the development of these devices, to reduce design times, and to provide tools for developing complex applications. This work presents an operating system scheduler for resource-constraint wireless devices, which adapts the tasks scheduling in changing environments. The proposed adaptive scheduler allows dynamically delaying the execution of low priority tasks while maintaining real-time capabilities on high priority ones. Therefore, the scheduler is useful in nodes with rechargeable batteries, as it reduces its energy consumption when battery level is low, by delaying the least critical tasks. The adaptive scheduler has been implemented and tested in real nodes, and the results show that the nodes lifetime could be increased up to 70% in some scenarios at the expense of increasing latency of low priority tasks.

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