• Journal of the Korean Society for information Management
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• v.37 no.3
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• pp.157-175
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• 2020

This study aimed to understand why small libraries, which have been continuously extended by the increase of social interest in them and the enactment of 「Promotion of Small Library Act」, an independent law about small libraries, are poorly activated. To this end, it examined the actual status of small library operation, related policies, support and legislations. By summarizing the results, it proposed a policy direction and tasks for activating small libraries. The policy tasks for activating them consist of three main tasks such as 'the improvement of laws and institutions for establishing the base of policies and securing practical momentum', 'the reestablishment of roles by policy units and the reinforcement of cooperation systems' and 'the construction of stable operation support system for small libraries', and their 14 sub-tasks, under the vision of 'the activation of small libraries support local residents' happy life' and the core value of 'a comprehensive policy ground, the innovation of policy systems and sustainable management support'.

• Journal of the Korean Chemical Society
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• v.63 no.3
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• pp.183-195
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• 2019

In this study, we investigated the characteristics of the authentic inquiry components in the inquiry tasks of Science Inquiry Experiments textbooks developed under the 2015 Revised National Curriculum. After classifying inquiry tasks by core concepts, we analyzed the cases that students autonomously planned or performed the authentic inquiry components. The results of the study revealed that investigating multiple materials component most frequently appeared in all units. However, generating research question, selecting variables, observing multiple variables and transforming observations components appeared in a few tasks of history and everyday science units as they were often guided or structured in textbooks. Controlling simple or complex variables, observing intervening variables and considering methodological flaws components rarely appeared in all units as most of textbooks did not consider or indicate explicitly. Authentic inquiry components of everyday science unit tended to be handled in small group activities. On the bases of the results, the implications for the development of the inquiry tasks of Science Inquiry Experiments textbooks are discussed.

• Imaging Science in Dentistry
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• v.53 no.4
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• pp.271-281
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• 2023

Purpose: The objective of this scoping review was to investigate the applicability and performance of various convolutional neural network (CNN) models in tooth numbering on panoramic radiographs, achieved through classification, detection, and segmentation tasks. Materials and Methods: An online search was performed of the PubMed, Science Direct, and Scopus databases. Based on the selection process, 12 studies were included in this review. Results: Eleven studies utilized a CNN model for detection tasks, 5 for classification tasks, and 3 for segmentation tasks in the context of tooth numbering on panoramic radiographs. Most of these studies revealed high performance of various CNN models in automating tooth numbering. However, several studies also highlighted limitations of CNNs, such as the presence of false positives and false negatives in identifying decayed teeth, teeth with crown prosthetics, teeth adjacent to edentulous areas, dental implants, root remnants, wisdom teeth, and root canal-treated teeth. These limitations can be overcome by ensuring both the quality and quantity of datasets, as well as optimizing the CNN architecture. Conclusion: CNNs have demonstrated high performance in automated tooth numbering on panoramic radiographs. Future development of CNN-based models for this purpose should also consider different stages of dentition, such as the primary and mixed dentition stages, as well as the presence of various tooth conditions. Ultimately, an optimized CNN architecture can serve as the foundation for an automated tooth numbering system and for further artificial intelligence research on panoramic radiographs for a variety of purposes.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.11 no.10
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• pp.4948-4967
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• 2017

On mobile devices, image sequences are widely used for multimedia applications such as computer vision, video enhancement, and augmented reality. However, the real-time processing of mobile devices is still a challenge because of constraints and demands for higher resolution images. Recently, heterogeneous computing methods that utilize both a central processing unit (CPU) and a graphics processing unit (GPU) have been researched to accelerate the image sequence processing. This paper deals with various optimizing techniques such as parallel processing by the CPU and GPU, distributed processing on the CPU, frame buffer object, and double buffering for parallel and/or distributed tasks. Using the optimizing techniques both individually and combined, several heterogeneous computing structures were implemented and their effectiveness were analyzed. The experimental results show that the heterogeneous computing facilitates executions up to 3.5 times faster than CPU-only processing.

• 제어로봇시스템학회:학술대회논문집
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• 1990.10b
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• pp.923-928
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• 1990

This paper describes the design and implementation of a real-time, high-precision vision system and its application to SMT(surface mounting technology) automation. The vision system employs a 32 bit MC68030 as a main processor, and consists of image acquisition unit. DSP56001 DSP based vision processor, and several algorithmically dedicated hardware modules. The image acquisition unit provides 512*480*8 bit image for high-precision vision tasks. The DSP vision processor and hardware modules, such as histogram extractor and feature extractor, are designed for a real-time excution of vision algorithms. Especially, the implementation of multi-processing architecture based on DSP vision processors allows us to employ more sophisticated and flexible vision algorithms for real-time operation. The developed vision system is combined with an Adept Robot system to form a complete SMD system. It has been found that the vision guided SMD assembly system is able to provide a satisfactory performance for SND automation.

• Journal of Electrical Engineering and information Science
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• v.2 no.4
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• pp.1-7
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• 1997

A multiprocessor microprocessor named SMPC(scaleable multiprocessor chip) that contains tow IU (integer unit) is presented in this paper. It can execute multiple instructions from several tasks exploiting task-level parallelism that is free from instruction dependencies, and provide high performance and throughput on both single program and multiprogramming environments. the IU is a 32-bit scalar processor expecially designed to boost up the performance of string manipulations which are frequently used in RDBMS(relational data base management system) applications. A memory management unit and a data cache shared by two IUs improve the performance and reduce the chip area required. ETH SMPC is implemented in VLSI circuit by custom design and automated design tools.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.24 no.62
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• pp.49-58
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• 2001

In recent years, a number of robot work measurement systems have been developed. This study discusses CARS (Computer Aided Romum System) which is to computerize the existed manual version ROMUM (RObot Modularization of the Unit Motion) method as the predetermined time system for robot work measurement. The ROMUM was developed to establish the standard time of work through modularize the unit motions in robot tasks. The CARS is designed on a menu driven form by computer assist for user interface and then interacts with user effectively. Therefore, the system can provide the convenience of use and minimization of analysis time and degree of judgement for establishing standard time.

• School Mathematics
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• v.2 no.1
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• pp.183-202
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• 2000

The purpose of this study is to restructure the 10th grade mathematics curriculum for teaching the function area under the computer environment using ‘Mathview’, which is a computer algebra system designed for exploring algebra dynamically. The instructional sequence of the function area was redesigned to highlight the functions and properties of the computer software. And, based on the newly designed sequence, this study develops the sample ‘teaching unit’ using Mathview. The basic principle of the materials is to encourage students to investigate mathematics by manipulate various experimental tasks by themselves or through group study. And, the draft of the sequence and teaching unit was reviewed by some mathematics teachers and revised through the feedback.

• International Journal of Highway Engineering
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• v.11 no.1
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• pp.85-94
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• 2009

In cost estimation of construction, several methods including quantity-per-unit costing, job costing, unit cost estimation and lumpsum estimation are being utilized in Korea. Among them, a Quantity-per-unit Costing Method is used as a standard of cost estimation in public and private works. This paper presents the realistic job-costing method on all road construction tasks through statistical analyses with field survey data to solve the problems induced by the existing quantity-per-unit costing method. Furthermore, it was found that the newly developed job costing method is able to produce a simple costing procedure and a more actual construction cost estimation by a case study, which was performed to compare particular construction costs produced by two different methods, existing quantity-per-unit costing and newly developed job costing. These methods is compared by Case-study about sub-base. In the case of Job costing method, the estimate is shorter than the other case about 50% and can make up for the weak point about instrument in the current Standard of cost estimation. And it can be depict by Job Costing method about progress of work for using by a plan about construction management.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.12 no.1
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• pp.121-130
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• 2005

Purpose: This study was done to determine the rate for handwashing by intensive care unit nurses according to the content of nursing tasks, to investigate the relationship between hand washing practice evaluated by nurses themselves and their actual practice observed, and finality to provide basic materials for strategy for hand washing education. Method: Data were collected by observing 27 nurses working in intensive care units of a hospital in Uijeongbu, Gyeonggi-do and by using observation and a structured self-assessment tool. Collected data were analyzed with SPSS and SAS. Results: The handwashing rate for the nurses was 4.3%. The handwashing rate was high in proportion to the risk of cross infection. In addition, the handwashing rate was highest in nurses working in the neurosurgery intensive care unit. The average score for self-assessment of handwashing was $49.42{\pm}3.78$ points and it was higher than their actual practice of handwashing. Conclusion: In order to improve handwashing by nurses, it is necessary to educate them on the importance of handwashing. In addition, there should be strategies for standardizing knowledge and attitudes to handwashing and inducing nurse:3 to practice hand washing in compliance with the policies and working conditions of the institution.