المؤلفون: Kim, Minseo, Kim, Jeounghoon

المصدر: 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI)

الإتاحة: https://doi.org/10.1109/cisp-bmei.2017.8302048Test
http://xplorestaging.ieee.org/ielx7/8293044/8301897/08302048.pdf?arnumber=8302048Test

المؤلفون: Lee, Jiwon, Kim, Minseo, Kim, Kwantae, Song, Kiseok, Lee, Sanghoon, Kim, Weon, Woo, Jong Shin, Yoo, Hoi-Jun

المصدر: 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

الإتاحة: https://doi.org/10.1109/embc.2017.8037109Test
http://xplorestaging.ieee.org/ielx7/8026122/8036736/08037109.pdf?arnumber=8037109Test

المؤلفون: Kim, Minseo¹ (AUTHOR) kim4m@cmich.edu, Beehr, Terry A.¹ (AUTHOR)

المصدر: International Journal of Human Resource Management. Sep2020, Vol. 31 Issue 16, p2017-2044. 28p. 2 Diagrams, 3 Charts.

مصطلحات موضوعية: *ORGANIZATIONAL commitment, *EMPLOYEE retention, *LEADERSHIP, STRUCTURAL equation modeling

مستخلص: This study tested a mediation model in which empowering leadership was negatively related to three withdrawal behaviors: lateness, absenteeism, and turnover intention, with affective organizational commitment as a mediator. With 294 full‐time US employees, results from structural equation modeling indicated that empowering leader behaviors at one time were positively related to estimates of affective organizational commitment at a second time, which in turn was negatively related to absenteeism and turnover intention at a final time. Additionally, no significant direct effect was found between empowering leadership and withdrawal behaviors, further supporting the mediation model. However, neither empowering leadership nor affective commitment influenced followers' lateness. Empowering leadership, which provides employees with autonomy and developmental support, may have a favorable effect on employees' decisions to attend and stay in the organization, as well as their affective reaction to the organization in the form of psychological commitment. This study extended prior research models by examining a full range of withdrawal behaviors in relation to empowering leadership and showed that commitment may explain why empowering leader behaviors can affect employees' retention decisions. [ABSTRACT FROM AUTHOR]

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المؤلفون: Kim, Minseo, Ha, Unsoo, Lee, Kyuho Jason, Lee, Yongsu, Yoo, Hoi-Jun

الوصف: An ultra-low power true random number generator (TRNG) based on a sub-ranging SAR analog-to-digital converter (ADC) is proposed. The proposed TRNG is composed of a coarse-SAR ADC with a low-power adaptive-reset comparator and a low-power dynamic amplifier. The coarse-ADC part is shared with a sub-ranging SAR ADC for area reduction. The shared coarse-ADC not only plays the role of discrete-time chaotic circuit but also reduces the overall SAR ADC energy consumption by selectively activating the fine-SAR ADC. Also, the proposed dynamic residue amplifier consumes only 48 nW and the adaptive-reset comparator generates a chaotic map with only 6-nW consumption. The proposed TRNG core occupies 0.0045 mm(2) in 0.18-mu m CMOS technology and consumes 82 nW at 270-kbps throughput with 0.6-V supply. It successfully passes all of National Institute of Standards and Technology (NIST) tests, and it achieves the state-of-the-art figure-of-merit of 0.3 pJ/bit.

العلاقة: IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.52, no.7, pp.1953 - 1965; https://ieeexplore.ieee.org/document/7919157Test/; https://scholarworks.unist.ac.kr/handle/201301/24537Test; 3698; 30711; 2-s2.0-85018914009; 000404301300020

الإتاحة: https://doi.org/10.1109/JSSC.2017.2694833Test
https://scholarworks.unist.ac.kr/handle/201301/24537Test
https://ieeexplore.ieee.org/document/7919157Test/

المؤلفون: Kim, Minseo, Jang, Jaeeun, Kim, Hyunki, Lee, Jihee, Lee, Jaehyuck, Lee, Jiwon, Lee, Kyoung-Rog, Kim, Kwantae, Lee, Yongsu, Lee, Kyuho Jason, Yoo, Hoi-Jun

الوصف: A wearable electrical impedance tomography (EIT) system is proposed for the portable real-time 3-D lung ventilation monitoring. It consists of two types of SoCs, active electrode (AE)-SoC and Hub-SoC, mounted on wearable belts. The 48-channel AE-SoCs are integrated on flexible printed circuit board belt, and Hub-SoC is integrated in the hub module which performs data gathering and wireless communication between an external imaging device. To get high accuracy under the variation of conductivity, the dual-mode current stimulator provides the optimal frequency for time difference-EIT and frequency difference-EIT with simultaneous 4 k-128 kHz impedance sensing. A wide dynamic range instruments amplifier is proposed to provide 94 dB of wide dynamic range impedance sensing. In addition, the 48-channel AE system with the dedicated communication and calibration is implemented to achieve 1.4-m Omega sensitivity of impedance difference in the in vivo environment. The AE-/Hub-SoCs occupy 3.2 and 1.3 mm2in 65-nm CMOS technology and consume 124 mu W and 1.1 mW with 1.2 V supply, respectively. As a result, EIT images are reconstructed with 90% of accuracy, and up to 10 frames/s real-time 3-D lung images are successfully displayed.

العلاقة: IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.52, no.11, pp.2829 - 2842; https://ieeexplore.ieee.org/document/8057579Test/; https://scholarworks.unist.ac.kr/handle/201301/24536Test; 3698; 30710; 2-s2.0-85031790706; 000413941800004

الإتاحة: https://doi.org/10.1109/JSSC.2017.2753234Test
https://scholarworks.unist.ac.kr/handle/201301/24536Test
https://ieeexplore.ieee.org/document/8057579Test/

المؤلفون: Cho, Hyunwoo, Kim, Hyunki, Kim, Minseo, Jang, Jaeeun, Lee, Yongsu, Lee, Kyuho Jason, Bae, Joonsung, Yoo, Hoi-Jun

الوصف: A low-energy 40/160 MHz dual-band full duplex body channel communication (BCC) transceiver and a 13.56 MHz R-C oscillator-based super-regenerative transceiver are integrated in 65 nm CMOS mixed mode process for both entertainment and healthcare applications. The on-chip R-C duplexer uses notch filters for full duplex communication with 40 Mb/s data rate and combined dual-band operation shows 80 Mb/s data rate with half duplex communication. 40MHz sine wave and 160 MHz rectangular wave are adopted for modulation in the dual-band transmitter with 30 dB SNR improvement, and shared-loop BPSK receiver reduces the power consumption by 25%. The proposed super-regenerative transceiver including an OOK transmitter and an R-C oscillator-based receiver achieves >60 dB interference rejection with 100 kb/s data rate and 42.5 mu W power consumption under the 0.8 V supply.

العلاقة: IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.51, no.1, pp.310 - 317; https://ieeexplore.ieee.org/document/7362129Test/; https://scholarworks.unist.ac.kr/handle/201301/24528Test; 3698; 30715; 2-s2.0-84971003292; 000367719400030

الإتاحة: https://doi.org/10.1109/JSSC.2015.2498761Test
https://scholarworks.unist.ac.kr/handle/201301/24528Test
https://ieeexplore.ieee.org/document/7362129Test/

المؤلفون: Kim, Minseo, Beehr, Terry A.

المصدر: Stress and Health ; volume 34, issue 3, page 367-378 ; ISSN 1532-3005 1532-2998

الوصف: Based on the job demand‐resource theory, this study examined the differential relationships of two types of job demands, challenge and hindrance stressors, with three outcomes: ill health, organizational citizenship behaviour, and work engagement. These relationships were mediated by two personal resources: psychological empowerment and organization‐based self‐esteem (OBSE). Data were collected at two separate points, 2 weeks apart. With 336 full‐time U.S. employees, results from path analysis indicated that the challenge stressor, workload, was positively related to psychological empowerment and OBSE, both of which were in turn positively related to good work behaviours as well as negatively related to ill health, an indication that employees experienced physical symptoms and psychological strains. In contrast, hindrance stressors (role stressors and interpersonal conflict) showed the opposite patterns of relationships with these intermediate outcomes, resulting in less empowerment and OBSE. Overall, findings suggested that psychological empowerment and OBSE were important intrinsic motivational mechanisms through which some stressors (especially hindrance demands) can promote employees' favourable work behaviours as well as alleviate the negative health outcomes.

الإتاحة: https://doi.org/10.1002/smi.2796Test

المؤلفون: Hong, Seong Kyung, Bae, Seonghan, Jeon, Hyungkook, Kim, Minseo, Cho, Seong J., Lim, Geunbae

المساهمون: National Research Foundation of Korea

المصدر: Nanoscale ; volume 10, issue 6, page 3037-3045 ; ISSN 2040-3364 2040-3372

الوصف: A nanofibrous cellulosic membrane effectively separates large amounts of oil/water mixtures in chemically harsh environments at high fluxes.

الإتاحة: https://doi.org/10.1039/c7nr08199eTest
http://pubs.rsc.org/en/content/articlepdf/2018/NR/C7NR08199ETest

المؤلفون: Kim, Minseo, Beehr, Terry A.

المصدر: The International Journal of Human Resource Management ; volume 31, issue 16, page 2017-2044 ; ISSN 0958-5192 1466-4399

الإتاحة: https://doi.org/10.1080/09585192.2018.1424017Test

المؤلفون: Ha, Unsoo, Lee, Jaehyuk, Kim, Minseo, Roh, Taehwan, Choi, Sangsik, Yoo, Hoi-Jun

المصدر: IEEE Journal of Solid-State Circuits ; volume 53, issue 6, page 1830-1843 ; ISSN 0018-9200 1558-173X

الإتاحة: https://doi.org/10.1109/jssc.2018.2810213Test
http://xplorestaging.ieee.org/ielx7/4/8364639/08320516.pdf?arnumber=8320516Test