• Journal of the Semiconductor & Display Technology
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• v.16 no.3
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• pp.59-64
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• 2017

As the demand on displays increases, new thin-film transistors such as metal oxide transistor are continuously being invented. When designing a circuit consisting of such new transistors, a new transistor model based on proper charge transport mechanisms is needed for each of them. In this paper, a modeling framework which enables to choose charge transport mechanisms that are limited to certain operation regions and assemble them into a transistor model instead of making an integrated transistor model dedicated to each transistor. The framework consists of a graphic user interface to choose charge transport models and a current calculation part, which is also implemented in AIM-SPICE for circuit simulation.

• Journal of Industrial and Engineering Chemistry
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• v.67
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• pp.316-325
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• 2018

Aluminum based metal-organic framework using a di-carboxylate linker succinic acid (Al-SA MOF), are synthesized in water with minimal generation of secondary pollutants. The physicochemical properties of Al-SA MOF were examined, followed by its utility for the adsorption of Acid Black 1 (AB1) in aqueous media. Influences of key parameters such as pH, contact time, initial AB1 concentration,temperature, and selectivity on the adsorption process were assessed. A series of adsorption mechanisms are proposed, which involve electrostatic, hydrogen bonding, and hydrophobic interactions. These findings suggest that Al-SA MOF is a potent candidate in removing complex azo dyes molecules from aqueous media.

• The Journal of Korea Robotics Society
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• v.16 no.4
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• pp.336-344
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• 2021

This paper presents a robust deep learning-based human tracking framework in crowded environments. For practical human tracking applications, a target must be robustly tracked even in undetected or overcrowded situations. The proposed framework consists of two parts: robust deep learning-based human detection and tracking while recognizing the aforementioned situations. In the former part, target candidates are detected using Detectron2, which is one of the powerful deep learning tools, and their weights are computed and assigned. Subsequently, a candidate with the highest weight is extracted and is utilized to track the target human using a Kalman filter. If the bounding boxes of the extracted candidate and another candidate are overlapped, it is regarded as a crowded situation. In this situation, the center information of the extracted candidate is compensated using the state estimated prior to the crowded situation. When candidates are not detected from Detectron2, it means that the target is completely occluded and the next state of the target is estimated using the Kalman prediction step only. In two experiments, people wearing the same color clothes and having a similar height roam around the given place by overlapping one another. The average error of the proposed framework was measured and compared with one of the conventional approaches. In the error result, the proposed framework showed its robustness in the crowded environments.

• Journal of Science and Technology Studies
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• v.19 no.2
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• pp.41-83
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• 2019

Recently, the establishment of the Special Act on National Research and Development(tentatively named) has been discussed with the aim of providing a legal basis for the comprehensive management of national research and development programs, which have thus far been independently implemented by government ministries. This paper analyzes the legislative process of the Framework Act on Science and Technology(hereafter, the "Framework Act") introduced for a similar purpose in 2001. By examining who had proposed various versions of the legislation prior to the enactment of the Framework Act, and which draft bill was derived ultimately through controversies, this paper will present the following two arguments: First, the obsession with a single regulation that can be applicable to all national research and development programs may lead to unintended consequences, given that the history of national research and development programs, each of which has been implemented by different government ministries, is quite long. Second, the Framework Act has an impact to date while it consistently internalizes the very unique orientations, as the concepts of "national competitiveness" and "national innovation system" postulate, even though it failed to establish an integrated rule. The case of the Framework Act will be a window through which one can glimpse how the present debate on the enactment of the Special Act on National Research and Development shall proceed, and further, reflect on the issues that were overlooked.

• Journal of the Korea Institute of Military Science and Technology
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• v.21 no.5
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• pp.704-713
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• 2018

The purpose of this study is to develop a systematic framework that can scientifically and quantitatively evaluate the effectiveness of an LVC training system. The proposed framework is based on QFD(Quality Function Development) methodology. The process of developing the framework begins with identifying various needs of stakeholders related to the introduction of the LVC training system. Then the effectiveness areas and factors are derived based on the needs. The measured effectiveness for each factors on alternatives by L, V, C systems are finally synthesized into the one overall effectiveness of each training system for relative comparison among them. In addition, we developed an Excel$^{TM}$-based tool based on the proposed framework methodology to provide an ease-of-use environment for rapid evaluation on the effectiveness of each training system with the given stakeholder need importance combinations, training scenarios and assets. The suggested framework and the measurement tool are expected to be useful for efficient knowledge-based decision making on an acquisition of the LVC training system.

• Journal of Korea Technology Innovation Society
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• v.17 no.1
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• pp.95-123
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• 2014

Recently, as the role of science and technology in social domain is more increased and the creative economy becomes a important matter in national development strategy, it is necessary that the improvement of legal system on science and technology for efficiently responding to paradigm shift into Innovation driven science and technology policy. Especially, The Framework Act On Science And Technology as a general and basic norm on science and technology policy is necessary to revise in systematic and substantial aspect in order to correspond with changed environment and current of the times. The Framework Act On Science And Technology was established in 2001 and revised several times, but substantial amendment reflecting the political facts as the need to demand was insufficient because it was revised only related with restructuring the government organization and changing the S&T Policy Coordinating Committee system. And therefore, this paper aims to review the problems and complementary factors and suggest the improvement draft on The Framework Act On Science And Technology. According to study, the revision methodologies are following : first, the Chapter and Paragraph of the law should be restructured to improve the systemicity, next the comprehensiveness, effectiveness, connections with related special laws and compatibility of the law should be complemented by adding the new provision or amending the inadequate provision to improve the position and function as a general and basic norm.

• Proceedings of the Technology Innovation Conference
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• 2005.06a
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• pp.24-43
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• 2005

On industry highly developed and competition with each company, technology is considered as the one of the most significant variables in the era of technology competition. So, the needs of technology valuation and valuating technology competitiveness are increasing to measure value of company. However, in many cases of valuation tools, elaborate valuation technique is required all the more by reason of difficulty of defining the valuation target, the valuation perspective and the purpose of valuation. This study tried to define valuation framework of technology competitiveness for technology intensive small medium venture company to valuate technology environment and company's capability related with technology synthetically as well as technology itself which company uses. And also the purpose of technology valuation, the purpose of technology competitiveness, basic elements of technology valuation, trend of technology valuation in major countries including Korea are presented and analyzed.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.7 no.2
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• pp.234-252
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• 2013

Due to the uncertain of connections in Delay Tolerant Networks (DTNs), most routing algorithms in DTNs need nodes to forward the message to others based on the opportunistic contact. The contact is related with the beaconing rate. In particular, nodes have more chances to encounter with each other with bigger beaconing rate, but more energy will be used. On the other hand, if the nodes forward the message to every node all the time, the efficiency of the routing algorithm is better, but it needs more energy, too. This paper tries to exploit the optimal beaconing rate and forwarding rate when the total energy is constraint. First, a theoretical framework is proposed, which can be used to evaluate the performance with different forwarding rate and beaconing rate. Then, this paper formulates a joint optimization problem based on the framework. Through Pontryagin's Maximal Principle, this paper obtains the optimal policy and proves that both the optimal forwarding and beaconing rates conform to threshold form. Simulation results show the accuracy of the theoretical framework. Extensive numerical results show that the optimal policy obtained in this paper is the best.

• Proceedings of the Technology Innovation Conference
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• 1999.12a
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• pp.63-81
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• 1999

The environment of Information and Telecommunication industry has rapidly changed. This is leading the growth of the world economy. Because of the characteristic of the information and communication, the standardization plays a important role in this market. The company that owns the standardization in its industry has dominant power like Microsoft in personal computer software, and Qualcomm in digital cellular phone system. Therefore, to take advantage of this standardization power, it is important to find which technology will be set up as a new standard. This paper presents how to capitalize the standardization as a market strategy. To perform this strategy, we take two steps. The first step is to strategically choose the most important technology or service which would lead the information and telecommunication market. We used modified AHP(Analytic Hierarchy Process) to set the priorities among the various standard related technologies and services, We interviewed with the information and telecommunication experts to find out some criteria and the weights of them. The second step is to select the standard to realize the technology. Actually, this is very hard to decide which technology we should select, because there are lots of alternative standards to develop the technology. In this step, we use a strategic framework for choosing the standard. This framework provides how the research institution and company do to get a maximum benefit from the standardization strategy, Finally, we applied these to Korea's situation simply in order to show how to take advantage of the framework.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.8 no.6
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• pp.1869-1880
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• 2014

Wireless communication is one of most active areas in modern communication researches, QoS (Quality of Service) assurance is very important for wireless communication systems design, especially for applications such as streaming video etc., which requires strict QoS assurance. The modern wireless networks multi-layer protocol stack structure results in QoS metrics layered and acting in cascade and QoS metrics vertical mapping between protocol layers. Based on virtual buffer between protocol layers and queuing technology, a unified layered QoS mapping framework is proposed in this paper, in which we first propose virtual queue concept, give a novelty united neighboring protocol layers QoS metric mapping framework, and analysis method based on dicerete-time Markov chain, and numerical results show that our proposed framework represents a significant improvement over previous model.