Key Techniques of Interoperable DRM on Linux Platform

2009 ◽  
Author(s):  
Yulin Wang ◽  
Xuebin Liu
Keyword(s):  
Key Techniques ◽  
Linux Platform

Design of NIC Driver and Simple IP for Multi-Process Micro-Kernel Embedded OS on ARM

2013 ◽  
Vol 347-350 ◽  
pp. 1260-1263
Author(s):  
Bo Qu ◽  
Zhong Xue Yang
Keyword(s):  
Operating System ◽  
Network Performance ◽  
Embedded Operating System ◽  
System Research ◽  
Tool Chain ◽  
Embedded Os ◽  
Design And Implementation ◽  
Technical Details ◽  
Key Techniques ◽  
Linux Platform

This paper describes the design and implementation of NIC driver and simple IP for an embedded OS in technical details, including the key techniques of designing NIC driver, ether net interface, ARP, IP and ICMP routines. The network routines are implemented for the ARM based multi-process micro-kernel embedded operating system developed by the author of this paper on Linux platform with GNU tool chain. A shell command, ping, is designed to show the effect of network performance. Based on the NIC driver, UDP, TCP and socket routines can be designed further. This multi-process micro-kernel embedded operating system with network capabilities is suitable and helpful for both embedded operating system research and related curriculum teaching.

Design of ARM Based Tiny Multi-Process Mono-Kernel

2013 ◽  
Vol 347-350 ◽  
pp. 1268-1271
Author(s):  
Bo Qu
Keyword(s):  
Operating System ◽  
Process Management ◽  
Embedded Operating System ◽  
System Research ◽  
Tool Chain ◽  
System Calls ◽  
Process Creation ◽  
Key Techniques ◽  
Linux Platform

This paper describes the key techniques for designing and implementing an ARM based tiny multi-process mono-kernel, including architecture of multi-process mono-kernel, init process creation, system calls, process management, interrupt-mode UART and simple TTY, etc. The entire kernel is developed on Linux platform with GNU tool chain by the author of this paper from scratch. On the premise of implementing essential functions of an ordinary embedded operating system, the kernel is designed as simple as possible, made up of only 3,600 lines of code, therefore suited to both embedded operating system research and embedded related curriculum teaching.

Submarine Operation Tool and Intelligent Device

2012 ◽  
Vol 455-456 ◽  
pp. 1109-1114
Author(s):  
He Jin ◽  
Meng Qing Xing
Keyword(s):  
Primary Study ◽  
Intelligent Machine ◽  
Key Techniques

. Analysis is made to the operating task in ocean, making the series devices of marine intelligent machine the primary study content and having the deep research on its key techniques. At the same time, the corresponding prototype was produced and then tested. It proved to be that the research is feasible and the production is successful. It makes contributions towards the domestic submarine operating technology.

scholarly journals Re-Imagining Social Mobility: The Role of Relationality, Social Class and Place in Qualitative Constructions of Mobility

2021 ◽  
pp. 136078042098512 ◽  
Author(s):  
Louise Folkes
Keyword(s):  
Social Class ◽  
Working Class ◽  
Social Mobility ◽  
Educational Achievement ◽  
Ethnographic Study ◽  
Ontological Security ◽  
Occupational Position ◽  
Individual Level ◽  
Key Techniques ◽  
Class Community

Discussions around social mobility have increasingly gained traction in both political and academic circles in the last two decades. The current, established conceptualisation of social mobility reduces ‘success’ down to individual level of educational achievement, occupational position and income, focusing on the successful few who rise up and move out. For many in working-class communities, this discourse is undesirable or antithetical to everyday life. Drawing upon 13 interviews with 9 families collected as part of an ethnographic study, this article asks, ‘how were social (im)mobility narratives and notions of value constructed by residents of one working-class community?’ Its findings highlight how alternative narratives of social (im)mobility were constructed; emphasising the value of fixity, anchorage, and relationality. Three key techniques were used by participants when constructing social (im)mobility narratives: the born and bred narrative; distancing from education as a route to mobility; and the construction of a distinct working-class discourse of fulfilment. Participants highlighted the value of anchorage to place and kinship, where fulfilment results from finding ontological security. The findings demonstrate that residents of a working-class community constructed alternative social mobility narratives using a relational selfhood model that held local value. This article makes important contributions to the theorisation of social mobility in which it might be understood as a collective rather than individual endeavour, improving entire communities that seek ontological security instead of social class movement and dislocation.

scholarly journals Robotic Precisely Oocyte Blind Enucleation Method

2021 ◽  
Vol 11 (4) ◽  
pp. 1850
Author(s):  
Xiangfei Zhao ◽  
Maosheng Cui ◽  
Yidi Zhang ◽  
Yaowei Liu ◽  
Xin Zhao
Keyword(s):  
Success Rate ◽  
Nuclear Transfer ◽  
Operation Time ◽  
Volume Control ◽  
Translation Control ◽  
Cleavage Rate ◽  
Training Time ◽  
Manual Method ◽  
Control Oocyte ◽  
Key Techniques

Oocyte enucleation is a critical procedure for somatic cell nuclear transfer. Yet, the main steps of oocyte enucleation are still manually operated, which presents several drawbacks such as low precision, high repetition error, and long training time for operators. For improving the operation efficiency and success rate, a robotic precise oocyte blind enucleation method is presented in this paper. The proposed method involves the following key techniques: oocyte translation control, oocyte immobilization and penetration control, and enucleation volume control based on the adaptive slide mode. Compared with the manual blind enucleation method, the proposed robotic blind enucleation method reduced the operation time by 44.5% (manual method: 62 s vs. proposed method: 34.4 s), increased the accuracy of enucleation by 83.1% (manual method: 30.7 vs. proposed method: 5.2), increased the success rate from 80% to 93.3%, and increased the cleavage rate from 41.7% to 63.3%.

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