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Seventh ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing

A system manages a file directory containing data that is exposed by a file-server. The system provides a block-device layered on top of a network share that treats the underlying network share as read-only but allows local file-system semantics to operate on top of the network share. The end-result is a virtual disk containing a locally recognizable file-system that can read and write from the perspective of the operating system but where the data is store in the cloud as network shares. The virtual disk appears to be a fully functional local disk with all the expected local disk semantics.

Virtual disk from network shares and file servers

A system is provided for migrating, in an automated way, old backups created using older software to the current vendor. Generally, backup products are composed of a few broad sub-systems. The migration system organizes old backup data and can present the backup data to a new vendor's system. The embodiments include a virtual appliance, which can include a client (e.g., a consumer of the XBSA API) to drive the legacy vendor with user selections to pull data from existing media and create a server personality that can be presented to the new backup software. The new backup system can then use existing means to discover, backup, and catalog data made available via the virtual appliance.

Backup media conversion via intelligent virtual appliance adapter

This study uses behavioral observation, interviews, and questionnaire research to investigate the residential environment. It also evaluates the elderly in four representative ancient towns of Xiangxi, namely, Liye Ancient Town, Furong Ancient Town, Liexi Ancient Town, and Xichehe Ancient Town. It includes indoor air (CO2, PM2.5, PM10) and light intensity monitoring for the residential environment. The results showed that the elderly had a significant sense of frustration and loneliness. Of the elderyly, 70% believed the current living environment had an impact on healthy living, and 45% believed the safety and convenience of the living environment should be improved. More than 80% of the elderly were dissatisfied with their indoor acoustic environment, and more than 70% were dissatisfied with their home transportation. More than 85% of the elderly considered traditional wooden components and spaces to be the source of cultural identity. Furthermore, the average indoor PM2.5 concentration during the fire pit fire was 350–600 µg/m3, about 4.7–8 times the Chinese standard value. The average concentration of PM10 in all rooms was more than 400 µg/m3, approximately three times the Chinese standard value. Also, targeted environmental improvement strategies were proposed. The study results provided actual information to develop a systematic approach and a targeted design based on the needs to improve the residential environment of the elderly in ancient cities.

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The Ancient Town Residential Environment of the Elderly in Xiangxi Tujia: Survey, Questions, and Recommendations

Mass storage resolves the capacity requirements of huge data storage in the networks of enterprises and organizations. The complexity and cost of storage management needs intelligence to reduce the huge overheads, and intelligent storage becomes the ideal storage solution. The paper illustrates the related work with intelligent storage, proposes a hierarchical multi-agent architecture of the intelligent storage system and analyzes the key technologies. The scheduling policies of the intelligent storage system are also discussed. It is concluded that the storage intelligence lies mainly in time assigning and space distributed strategies.

Intelligent Storage Architecture and Key Technologies Research

The ever growing storage demands of modern applications cultivate a promising area of storage system management, centered upon metadata servers. Some of the works are done at the file system level, which care little about device level data organization. In this paper we present the design of managing metadata at block-level by using storage virtualization techniques. We propose both static and dynamic block mapping policies to meet the diverse needs of applications, balance disk workload and improve storage system performance. We build our prototype in a Virtual Interface based storage area network, and the evaluation results demonstrate that metadata management at block-level can be efficient and flexible.

Flexible Metadata Management for Block-level Storage System

Air pollution is a major health hazard. The traditional habits and unique ethnic fire culture in Hunan Tujia region result in the long-term exposure of residents, especially elderly people, to pollutants. In this study, we conducted field monitoring and assessment of indoor pollutants in the residential houses of Hunan Tujia families and subsequently visualised and simulated fire pollutants in representative residential houses by using fire-dynamic-simulator software. Pollutant-control strategies, using passive smoke collectors and resizing windows, were proposed and simulated for validation. The results revealed that passive smoke collectors reduced the pollutant concentration in the hall house by 43.96%. Furthermore, the optimal window size was 1500 mm × 1500 mm, and the most reasonable windowsill height of the firepit was 1800 mm. The results of the study can be used to improve the indoor air quality of Tujia dwellings and mitigate the adverse health effects of exposure to indoor air pollution without restricting ethnic beliefs and traditional customs.

/pdf/indoor-air-quality-in-tujia-dwellings-in-hunan-china-field-1a84kmnm.pdf

Indoor Air Quality in Tujia Dwellings in Hunan, China: Field Tests, Numerical Simulations, and Mitigation Strategies

A design scheme of Duffing Chaotic circuit module is proposed based on Multisimin study. The operational amplifier is used to construct integrating circuit. The Duffing chaotic circuit is also designed based on the integrating circuit. The results can be shown in a virtual oscilloscope by phase trajectory. The bifurcation results of Duffing oscillator solved by the circuit module are consistent with that obtained by Matlab. The Duffing equation in critical state is selected as Chaos Inspection System (CIS), which is used to identify weak signal with strong noise. Simulation examples show that the chaotic circuit designed in this study can successfully identify many kinds of weak signals, such as sine wave, triangle wave, and square wave etc. This work provides a theoretical basis for the hardware of CIS of weak signal with strong noise.

Mengfei Cheng

Papers

Flexible Metadata Management for Block-level Storage System

Indoor Air Quality in Tujia Dwellings in Hunan, China: Field Tests, Numerical Simulations, and Mitigation Strategies

The Ancient Town Residential Environment of the Elderly in Xiangxi Tujia: Survey, Questions, and Recommendations

Circuit design and application for weak signal detection based on Duffing oscillator

Application of chaotic information entropy for ultrasonic guided wave detection in pipe