Complete Framework for Frequency and Time-Domain Performance Assessment of Vibrating Intrinsic Reverberation Chambers

Supply chain management is a new and evolving paradigm for enterprises to cope with international competition and to improve global logistics efficiency. The suppliers’ performances affect not only supply chain execution results but also the profit capability and business survivability. However, suppliers’ performance assessment always involves a large dimension of supplier behaviors. Information on supplier behaviors is often difficult to be accurately demonstrated as quantitative data. For this reason, the study employs a 2-tuple linguistic variable to perform the initial evaluation and final assessment while keeping track of both linguistic information and data, which can avoid a tied result. Additionally, the modified linguistic ordered weighted averaging (M-LOWA) operator with maximum entropy is used to derive the maximum aggregation value under the current business strategy to reflect on the criteria. The focal company can then rapidly rely on the assessment results to represent the performance of suppliers and provide integrated information to decision makers. This study draws the complete framework for the issue of supplier performance assessment without limitations on categories of variables and scales.

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Frequency- and Time-Domain Performance of Four-Arm Mode-2 Spiral Antennas

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2012.2194656 ◽

2012 ◽

Vol 60 (6) ◽

pp. 2627-2634 ◽

Cited By ~ 7

Author(s):

Mohamed A. Elmansouri ◽

Matthew J. Radway ◽

Dejan S. Filipovic

Keyword(s):

Time Domain ◽

Spiral Antennas ◽

Mode 2 ◽

Domain Performance

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Time-Domain Investigation of Switchable Filter Wide-Band Antenna for Microwave Breast Imaging

Sensors ◽

10.3390/s20154302 ◽

2020 ◽

Vol 20 (15) ◽

pp. 4302 ◽

Cited By ~ 1

Author(s):

Amir Haider ◽

MuhibUr Rahman ◽

Mahdi Naghshvarianjahromi ◽

Hyung Seok Kim

Keyword(s):

Time Domain ◽

Breast Imaging ◽

Wide Band ◽

Tumor Detection ◽

Ultra Wideband ◽

Good Time ◽

Area Network ◽

Microwave Breast Imaging ◽

The Time Domain ◽

Domain Performance

This paper investigates the time-domain performance of a switchable filter impulse radio ultra-wideband (IR-UWB) antenna for microwave breast imaging applications. A miniaturized CPW-fed integrated filter antenna with switchable performance in the range of the Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Local Area Network (WLAN) bands could operate well within a 3.0 to 11 GHz frequency range. The time-domain performance of the filter antenna was investigated in comparison to that of the designed reference wideband antenna. By comparing both antennas’ time-domain characteristics, it was seen that the switchable filter antenna had good time-domain resolution along with the frequency-domain operation. Additionally, the time-domain investigation revealed that the switchable filter wide-band antenna performed similarly to the reference wide band antenna. This antenna was also utilized for a tumor detection application, and it was seen that the switchable filter wide-band antenna could detect a miniaturized irregularly shaped tumor easily, which is quite promising. Such an antenna with a good time-domain resolution and tumor detection capability will be a good candidate and will find potential applications in microwave breast imaging.

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