Nonlinear vibration analysis of bridge seismic isolator system using Elastomeric Spherical Bearing

Miah Mohammad Shamim,Dookie Kim,Jeongyun Do,Kun-Nok Park 대한토목학회 2009 대한토목학회 학술대회 Vol.2009 No.10

Fisheries stock assessment and management in Bangladesh

Miah Md Sagir 한국수산과학회 양식분과 2020 한국수산과학회 양식분과 학술대회 Vol.2020 No.7

An Automatic Road Sign Recognizer for an Intelligent Transport System

Miah, Md. Sipon,Koo, Insoo The Korea Institute of Information and Commucation 2012 Journal of information and communication convergen Vol.10 No.4

This paper presents the implementation of an automatic road sign recognizer for an intelligent transport system. In this system, lists of road signs are processed with actions such as line segmentation, single sign segmentation, and storing an artificial sign in the database. The process of taking the video stream and extracting the road sign and storing in the database is called the road sign recognition. This paper presents a study on recognizing traffic sign patterns using a segmentation technique for the efficiency and the speed of the system. The image is converted from one scale to another scale such as RGB to grayscale or grayscale to binary. The images are pre-processed with several image processing techniques, such as threshold techniques, Gaussian filters, Canny edge detection, and the contour technique.

Design and Performance Evaluation of NPK Briquette Applicator for Small-Scale Upland Crops

Miah Md. Sumon,Rahman Md Mashiur,Hoque Muhammad Arshadul,Hossain Md. Ayub 한국농업기계학회 2022 바이오시스템공학 Vol.47 No.3

Purpose Surface broadcasting application of prilled nitrogen, phosphorus, and potassium (NPK) fertilizer by hand in small-scale upland crops is time-consuming, labor-intensive, and wastes of a significant amount of fertilizer, contributing to greenhouse gas (GHG) emissions. Methods For this, a novel hand-held applicator for subsoil placement of NPK briquette was designed, developed, and tested both in the laboratory and experimental fields to evaluate applicator performance and its impact on field crop performance. The applicator works with the four mechanisms—feeding, metering, delivery, and subsurface placement with covering. The field experiment was conducted with four application treatments (NPK briquette application by applicator and hand, prilled NPK fertilizer as same dose and standard dose as applied by farmers). Results The result showed that the applicator had the highest consistent placement of NPK briquette (no losses) during laboratory and field tests. The applicator had a field capacity of 0.039 ha/h and field efficiency of 86.6%, which resulted in better performance than other application methods. The average hole coverage was 85.6%, the depth of placement was 77 mm, and the distance between the plant and the briquette application was 96.8 mm, all of which were close to the reference value. Moreover, crop yield was higher or similar to NPK briquette application by the applicator but significantly (p≤0.05) higher than other application methods. The weight of the applicator is 1.8 kg, so farmers can efficiently operate this user-friendly applicator. Conclusion NPK briquette applicator has shown excellent performance and significant potential for accurate, consistent, and deep precision placement of NPK briquette in the crop root zone for upland crops. Furthermore, the applicator has several advantages, including lower fertilizer costs and less drudgery associated with hand placement, which encourages farmers on a small-scale upland crop production.

CISH is induced during DC development and regulates DC‐mediated CTL activation

Miah, Mohammad Alam,Yoon, Cheol‐,Hee,Kim, Joonoh,Jang, Jinah,Seong, Young‐,Rim,Bae, Yong‐,Soo WILEY‐VCH Verlag 2012 European journal of immunology Vol.42 No.1

<P><B>Abstract</B></P><P>The cytokine inducible SH2‐domain protein (CISH) is a well‐known STAT5 target gene, but its role in the immune system remains uncertain. In this study, we found that CISH is predominantly induced during dendritic cell (DC) development from mouse bone marrow (BM) cells and plays a crucial role in type 1 DC development and DC‐mediated CTL activation. CISH knockdown reduced the expression of MHC class I, co‐stimulatory molecules and pro‐inflammatory cytokines in BMDCs. Meanwhile, the DC yield was markedly enhanced by CISH knockdown via cell‐cycle activation and reduction of cell apoptosis. Down‐regulation of cell proliferation at the later stage of DC development was found to be associated with CISH‐mediated negative feedback regulation of STAT5 activation. In T‐cell immunity, OT‐1 T‐cell proliferation was significantly reduced by CISH knockdown in DCs, whereas OT‐2 T‐cell proliferation was not affected by CISH knockdown. CTLs generated by DC vaccination were also markedly reduced by CISH knockdown, followed by significant impairment of DC‐based tumor immunotherapy. Taken together, our data suggest that CISH expression at the later stage of DC development triggers the shutdown of DC progenitor cell proliferation and facilitates DC differentiation into a potent stimulator of CTLs.</P>

THE ANTECEDENTS OF CHANNEL INTEGRATION IN FASHION INDUSTRY: ORGANIZATION STRATEGIC ORIENTATION, ORGANIZATIONAL STRUCTURE, CHANNEL STRATEGIES

Miah Lee,Eunju Ko,Dayun Jeong 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

Since the arrival of omni-channel retailing, which promotes seamless experience for consumers and zero effort commerce, channel integration has been a big issue in both the domestic and the international retail industry. Some researchers have identified problems that can occur in the process of channel integration, such as cannibalization and channel conflict (Coelho & Easingwood, 2003). However, many studies on channel integration report its positive impact on a firm’s revenue growth through improved trust (Schramm-Klein & Morschett, 2006), higher consumer conversion rates (Neslin et al., 2006), and greater cross-selling opportunities (Berry et al., 2010). Regarding the issue of effectively establishing channel integration in order to bring positive synergy to a company, the present study intends to identify a solution within a company’s internal factors. This study aims to provide a strategic perspective on channel integration formation of domestic fashion retailers by identifying some of the key organizational components that drive a firm’s channel integration in this omni-channel era, when the boundaries between online and offline markets are disappearing. This study predicts that organizational structure and strategic orientation are the key components of a fashion retailer’s channel integration implementation in an omni-channel environment. As shown in previous studies, channel integration has a positive impact on a firm’s performance through active and innovative transformation of the organization’s hardware and software (Cao & Li, 2015; Yan, Wang, & Zhou, 2010). In particular, this study introduces channel (extension) strategies (number of different types of channels in both online and offline markets) into channel integration as one of the crucial variables, in addition to the two existing variables. The data were collected through a survey targeting mid-level executives or above, within a business unit of Korea’s fashion companies with over $10 million revenue. Through this selection, a total of 120 samples were used in the final analysis. Hierarchical regression modeling was used to prove the study’s hypothesis. The revenue size of a parent company and SBU was used as a control variable in the level 1 model; channel strategies in the level 2 model; organizational structure in the level 3 model, and organization strategic orientation in the level 4 model, which was used as an independent variable. Integrated back-end system and integrated human resource management, which are the highest levels of channel integration (Cao & Li, 2015; Oh, Teo, & Sambamurthy, 2012), have been used as dependent variables. The main findings of this study are as follows: In a back-end system integration model, organization strategic orientation was identified as the highest level when the organizational structure becomes more centralized, whereas the system integration level is the highest when the model is competitor-oriented and innovation-oriented. In the human resource management integration model, the human resource management integration level is at its highest when the organizational structure becomes formalized and specialized, and organization strategic behavior becomes more competitor-oriented and innovation-oriented.

Using Pattern, Depletion and Conservation Strategy of the Triphala Trees in the Village Groves of Chittagong Region of Bangladesh

Miah, Danesh Md.,Rashed, Md. Monjur,Muhammed, Nur,Koike, Masao,Sin, Man Yong Korean Society of Forest Science 2006 한국산림과학회지 Vol.95 No.5

Triphala is an important combination of three important forest fruits, i.e., Emblica officinalis, Terminalia chebula and Terminalia bellirica. Chittagong region in Bangladesh was once rich in triphala trees presently subject to the depletion. Thus, these forest resources are being threatened day by day. The study was conducted to learn the present using pattern of the triphala, causes of its depletion and the conservation strategies agreed by the villagers. Eight major uses of triphala trees were recognized. It was revealed that 100% respondents used the triphala as fruit tree followed by 71-78% as fuelwod. The present status of growing stock of triphala was found in depleted condition particularly in the Muslim dominated area. It was found that unawareness was the major cause for depleting the triphala trees agreed by the 87% respondents followed by depleting the village groves by 84%. Awareness creation (100%) and induction of social forestry program (92%) were found major recomendations by the vilagers to retard depleting the triphala tree species in the Chittagong region of Bangladesh.

Toward an Integration of Life and Faith

Miah Yi 한국기독교교육정보학회 2012 Journal of Christian education information tech Vol.0 No.22

One of the primary goals of Christian education is to nurture a whole person who is integrated in one’s life and faith. For this educational task, Christian education needs a pedagogical and methodological foundation. Thomas H. Groom’s educational proposition of shared Christian praxis gives us a good insight for the Christian educational practice. This paper looks at Thomas H. Groom’s pedagogical foundations, and then the components and five movements of his shared Christian praxis as an educational methodology. Moreover, this paper considers an educational application to a Christian education field using shared praxis methodology.

Growth pattern and exploitation of Tenualosa ilisha in Southern Coast of Bangladesh

Miah Md Sagir,S M Nurul Amin,Chang-Ik Zhang 한국수산과학회 양식분과 2021 한국수산과학회 양식분과 학술대회 Vol.2021 No.4

Low Frequency Vibration Energy Harvester Using Stopper-Engaged Dynamic Magnifier for Increased Power and Wide Bandwidth

Miah Abdul Halim,Dae Heum Kim,Jae Yeong Park 대한전기학회 2016 Journal of Electrical Engineering & Technology Vol.11 No.3

We present a piezoelectric energy harvester with stopper-engaged dynamic magnifier which is capable of significantly increasing the operating bandwidth and the energy (power) harvested from a broad range of low frequency vibrations (<30 Hz). It uses a mass-loaded polymer beam (primary spring-mass system) that works as a dynamic magnifier for another mass-loaded piezoelectric beam (secondary spring-mass system) clamped on primary mass, constituting a two-degree-of-freedom (2-DOF) system. Use of polymer (polycarbonate) as the primary beam allows the harvester not only to respond to low frequency vibrations but also generates high impulsive force while the primary mass engages the base stopper. Upon excitation, the dynamic magnifier causes mechanical impact on the base stopper and transfers a secondary shock (in the form of impulsive force) to the energy harvesting element resulting in an increased strain in it and triggers nonlinear frequency up-conversion mechanism. Therefore, it generates almost four times larger average power and exhibits over 250% wider half-power bandwidth than those of its conventional 2-DOF counterpart (without stopper). Experimental results indicate that the proposed device is highly applicable to vibration energy harvesting in automobiles.