• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.66-68
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• 2008

This paper provides a user interface for mutual collaboration table top display technology. The biggest difference is that the existing interface with existing research through a single device to multiple users simultaneously enabled oriented way of face to face. On the other hand, in collaboration important deadline table top display device to device-oriented approach in which the order of one of the devices require users. Collaborative research is actively underway, but to do so focused still many challenges in this situation. This paper provides for collaboration on global trends on a table top display interface for more mutual collaboration with the user interface for about checking out on a table top display, currently being developed by a collaboration among users against a table top display technology.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.224-229
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• 2008

In this paper, we propose an object control system on table top display to support augmented reality in which objects in real-world control computer-generated data. We developed LED-based object control system over table top display so that it is capable of controlling networked table top display. The LED-based object control system supports more natural interactive interface. In this paper, infrared LED is used to implement the object control device to be recognised by table top display. We applied LED-based object control system in air hockey game where a team has a point if their puck goes to opponent's net on a table. Since users can control objects in cyber world with the proposed object control device, it is realized augmented reality.

• Journal of the Korea Furniture Society
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• v.13 no.2
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• pp.1-10
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• 2002

A computer top table was manufactured with the solid wood wastes that has been landfilled, combustion or burnt as a fuel at the present time. The computer table is different in form and size to that of existing fixed rectangular. It is idea1 product not only convenient and functional to use and beautiful design but also processing Performance of edge area and overlaying properties. The main technologies to develop this computer top table are plan for moulder to mould the Product and producing, molding the most suitable material and composition, suitable adhesives selecting and synthetic technology, investigation for the moulding conditions such as temperature, time etc, adequate overlaying materials selecting and overlaying technology have to be chocked.

• Journal of Korea Multimedia Society
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• v.12 no.5
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• pp.708-716
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• 2009

Applications which are implemented on Table Top Display are controlled by hands, so that they support an intuitive interface to users. Users feel the real sense when they interact on the virtual scene in Table Top Display. However, most of conventional augmented reality applications on Table Top Display satisfy only visual sense. In this paper, we propose an interface that supports multi-modal sense in that tactile sense is utilized for augment reality by vibrating a physical control unit when it collides to virtual objects. Users can feel the collision in addition to visual scene. The proposed system facilitates tactile augmented reality through an air hockey game. A physical control unit vibrates when it receives virtual collision data over wireless communication. Since the use of tabletop display environment is extended with a tactile sense based physical unit other than hand, it provides a more intuitive interface.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.108-111
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• 2008

In this paper, we propose the Table-top system for using educational contents. Table-top system that is matched visual information and interaction space offers easy and intuitive interface. Moreover, because the effectiveness of education is enlarged if the content for education intuitive recognizes and an interaction, the table top system is suitable. In this paper, the multi touch,that is the advantage of the table top system, was implemented in the content for education manufactured as a flash. This system can solve the member of the instinctive interaction between a user and the contents which was short in the system like the existing desktop.

• Journal of The Korean Society of Grassland and Forage Science
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• v.7 no.1
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• pp.37-41
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• 1987

The purpose of this study is to clarify the effect of top dressing on the thatch losses in bentgrass (Agrostis palustris). Top dressing materials used were clay loam, sand, zeolite, and sawdust. Data were taken on July 10 ($T_1$), Aug. 7 (($T_2$ ) and Sept. 4 (($T_3$) respectively. The results are summarized as follows: 1. The dry weight of accumulated thatch was significantly different between treatments and dates of survery, and for the interaction of treatment x date of survey. 2. The dry weight of accumulated thatch showed a tendency to decrease as growth progressed in all treatments. (Table 1) The dry weight of accumulated thatch was the smallest at sand but the largest at clay loam in each date of survey. 3. The losses rate of accumulated thatch showed a tendency to slightly increase as affected by top dressing materials. (Table 2) Sand showed a significantly higher losses rate of accumulated thatch than that of other treatments. 4. The dry weight of accumulated thatch showed a significant negative correlation (p<0.01) with the losses rate of accumulated thatch. (Fig. 1) 5. Turf coverage was significant difference between treatments and dates of survey. 6. Turf coverage showed a tendency to increase as growth progressed in all treatments. (Table 3) 7. Turf coverage indicated significant negative correlation (p<0.001) with the dry weight of accumulated thatch. (Fig. 2)

• Journal of Korea Multimedia Society
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• v.18 no.12
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• pp.1569-1577
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• 2015

Recently, the development of IT technology, utilization of smart devices 3-5-year-old infants Upon smart device penetration rate per household increases has also sharply increased. In this paper, the educational contents for kid are considered and implemented by reflecting this trend. Content that has been produced in this paper are based on learning theory of constructivism, was to be performed naturally learn the content of the table-top display of applying the NUI technology. Also, the content creation that can help you learn infants through experiments crafted tabletop display interface content, it is believed to be the basis for the improvement of usability.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.05a
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• pp.189-190
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• 2006

A patient table considering x-ray transparency, mechanical safety and compact multi-axis moving mechanism has been developed. The goal of medical imaging technology is to keep radiation exposure of patients during x-raying to a minimum. In order to obtain clear pictures at low dose, however, the x-ray table which supports the patient must be sufficiently permeable to radiation to allow good image resolution. The table top is made of low density foam for x-ray transparent effective area and structural aluminum plate to connect moving mechanism under the table, covered with thin carbon fiber. This sandwich construction is very rigid and lightweight, so the table top can handle relatively heavy load comparing to its cantilevered structure which is unavoidable as long as cooperate with C-arm radiography. To verify the design results finite element static analysis and experimental tests have been done. According to the verification the results well satisfy certification guide lines as a medical device.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.40 no.2
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• pp.195-202
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• 1995

This experiment was performed to characterize the optimum water table level for the growth and yield of barley(var. Olbori) and wheat(var, Grumil), Olbori and Grumil were grown in the 550 liter plastic pot filled with silt loam or sandy loam, During the whole growth period, the water table adjusted to be 20, 30, 40, 50, and 70cm, Higher water table was resulted in the decrease in plant height and top dry weight, but in the increase of the ratio of top to root dry weight, especially in barley, This suggested that high water table level affected more the growth of top than that of root, The number and area of green leaves were decreased as the water table was higher than 30 to 40cm at the late growth period(May 18, 1993), The largest number and area of green leaves were shown at 50cm of water table in sandy loam and at 70cm in silt loam, As the water table was high, the leaf chlorophyll content was low, And barley was affected more significantly than wheat by soil texture, The photosynthetic activity was decreased remarkably at 20cm water table, Heading period was 2 to 3 and 4 days earlier at the 20cm water table of sandy loam in barley and wheat, respectively, However this earlier heading was not shown in silt loam, Grain filling was accelerated 5 to 7 days earlier in barley and 10 days in wheat grown at 20cm water table, The highest yield was present at 50 and 70cm water table, The yield was decreased remarkably at 20cm water table, resulting that yield reduction ratio of barley was 71.1% and 72, 2%, and that of wheat was 41.0% and 60, 0% in sandy loam and silt loam, respectively, High water table decreased the number of spike per unit area, but increased the seed weight per spike in barley, However, High water table reduced the seed weight per spike in wheat. There was significant correlation between yield and leaf chlorophyll content in wheat and barley, Yield was correlated significantly with green leaf area in barley, and with top dry weight, ratio of top to root dry weight chlorophyll content and photosynthetic activity in wheat. The optimum water table was 50 to 70cm in wheat and barley, They grew fairly well at 30cm water table of sandy loam, and at 40cm of silt loam.

• Proceedings of the KIEE Conference
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• 1987.07a
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• pp.98-100
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• 1987

A granite optical table with a vibration isolator system is designed and constrvcted. The table top is made with granite and the vibration isolation system is constrvcted using a pneumatic isolator. The performance of the table is evalvated by the vibration measurement.