• 아동학회지
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• 제34권1호
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• pp.123-140
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• 2013

The purpose of this study was to examine the effects of counting ability on young children's mathematical ability and mathematical learning potential. The subjects in this study were 75 young children of 4 & 5 years old who attended kindergartens and child care center in the city of B. They were evaluated in terms of counting ability, mathematical ability and mathematical learning potential(training and transfer) and the correlation between sub-factors and their relative influence on the partipants' mathematical ability was then analyzed. The findings of the study were as follows : First, there was a close correlation between the sub-factors of counting and those of mathematical ability. As a result of checking the relative influence of the sub-factors of counting on mathematical ability, reverse counting was revealed to have the largest impact on total mathematical ability scores and each sub-factors including algebra, number and calculation, geometry and measurement. Second, the results revealed a strong correlation between counting ability and mathematical learning ability. Regarding the size of the relative influence of the sub-factors of counting ability on training scores, reverse counting was found to be most influential, followed by continuous counting. While in relation to transfer scores, reverse counting was found to exert the greatest influence.

• Nuclear Engineering and Technology
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• 제53권12호
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• pp.4122-4129
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• 2021

The counting efficiencies obtained using anthropomorphic physical phantoms are generally used in whole-body counting measurements to determine the level of internal contamination in the body. Geometrical discrepancies between phantoms and measured individuals affect the counting efficiency, and thus, considering individual physical characteristics is crucial to improve the accuracy of activity estimates. In the present study, the counting efficiencies of whole-body counting measurements were calculated considering individual physical characteristics by employing Monte Carlo simulation for calibration. The NaI(Tl)-based stand-up and HPGe-based bed type commercial whole-body counters were used for calculating the counting efficiencies. The counting efficiencies were obtained from 19 computational phantoms representing various shapes and sizes of the measured individuals. The discrepancies in the counting efficiencies obtained using the computational and physical phantoms range from 2% to 33%, and the results indicate that the counting efficiency depends on the size of the measured individual. Taking into account the body size, the equations for estimating the counting efficiencies were derived from the relationship between the counting efficiencies and the body-build index of the subject. These equations can aid in minimizing the size dependency of the counting efficiency and provide more accurate measurements of internal contamination in whole-body counting measurements.

• Environmental Engineering Research
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• 제24권3호
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• pp.397-403
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• 2019

Microcystis sp. is one of the most common harmful cyanobacteria that release toxic substances. Counting algal cells is often used for effective control of harmful algal blooms. However, Microcystis sp. is commonly observed as a colony, so counting individual cells is challenging, as it requires significant time and labor. It is urgent to develop an accurate, simple, and rapid method for counting algal cells for regulatory purposes, estimating the status of blooms, and practicing proper management of water resources. The flow cytometer and microscope (FlowCAM), which is a dynamic imaging particle analyzer, can provide a promising alternative for rapid and simple cell counting. However, there is no accurate method for counting individual cells within a Microcystis colony. Furthermore, cell counting based on two-dimensional images may yield inaccurate results and underestimate the number of algal cells in a colony. In this study, a three-dimensional cell counting approach using a novel model algorithm was developed for counting individual cells in a Microcystis colony using a FlowCAM. The developed model algorithm showed satisfactory performance for Microcystis sp. cell counting in water samples collected from two rivers, and can be used for algal management in fresh water systems.

• 한국보육지원학회지
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• 제11권3호
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• pp.129-148
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• 2015

본 연구는 국내에서 이루어진 유아 수세기(counting) 관련 연구물의 연구동향을 알아보고자 수행되었다. 이를 위해 수세기를 주제어로 다루고 있거나 제목으로 명시한 국내의 학위 및 학술지 논문 59편을 선정하였고, 연구시기, 연구내용, 연구방법별 분석기준을 마련하여 분석을 실시하였다. 분석 결과 첫째, 시기별로 보면 수세기 연구물은 2001-2005년 사이에 현저하게 많았고 그 이외의 시기 동안에는 비슷한 비율로 발표되고 있는 것으로 나타났다. 둘째, 내용별로 보면 수세기의 발달적 경향을 알아보는 연구가 가장 많았고 다음은 수세기와 기타 수학적 개념 및 능력과의 관련성을 알아보는 연구가 많았다. 셋째, 연구방법별로 보면 양적 연구가 절대 다수를 차지하고 있었고 질적 연구는 매우 미미했으며, 연구대상은 3-5세의 일반 유아에게 집중되어 있었다. 본 연구결과를 통해 향후에는 이전에 확인된 내용들에 대해 중복적인 연구를 피하고 새로운 주제가 탐색될 필요가 있으며 영아를 대상으로 한 질적 연구가 활성화될 필요가 있음을 제안하였다.

• 동의신경정신과학회지
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• 제25권1호
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• pp.47-54
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• 2014

Objectives: The purpose of this research was to analyze the responses of breath-counting meditations with the psychological test and the physical index. Methods: Breath-counting meditation was applied to 10 normal adults. Then, clinical research State-Trait Anxiety Inventory (STAI), State-Trait Anger eXpression Inventory (STAXI), Psychosocial Well-being Index Short Form (PWI-SF), Brief Encounter Psychosocial Instrument-Korean version (BEPSI-K), Heart Rate Variability (HRV), and Vital Signs (V/S) were carried out to analyze the responses of breath-counting meditations. Results: 1) Systolic Blood Pressure (SBP) decreased on the fifteenth day of breath-counting meditation, and Body Temperature (BT) increased on the fifteenth day. In addition, respiration decreased throughout the period of breath-counting meditation. 2) Standard deviations of N-N interval and Total Power (TP) of HRV all significantly increased on the fifteenth day of breath-counting meditation. 3) Scores of STAI1, STAXI1, STAXI2, and PWI-SF decreased after the breath-counting meditation. Conclusions: The results suggested that breath-counting meditations have positive responses to anger, anxiety and stress.

• 대한수학교육학회지:학교수학
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• 제18권2호
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• pp.375-396
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• 2016

본 연구는 우리나라 초등학교 교과서와 지도서를 '수 세기 이론'의 관점에서 고찰하였다. 먼저 여러 선행연구를 통해 수 세기가 초등학교 수학에서 어떠한 의미가 있는지 검토하였다. 이를 바탕으로 우리나라 교과서와 지도서, 이어서 미국, 싱가포르, 중국 교과서를 조사하였다. 그 결과, 이들 교과서는 우리나라에 비해 수 세기 이론의 관점을 전반적으로 적극적으로 반영하고 있었다. 특히 연산의 중요한 기초로서 수 세기를 명시적으로 활용하고 있는 점이 우리나라와 큰 차이를 보였다. 지도서는 수 세기 이론을 몇 차례 소개하지만 내용이 제한적이고 이론의 전후 맥락이 선명하지 않았다. 이러한 고찰을 바탕으로 수 세기 이론의 초등학교 교과서 반영에 대해 논의하였다.

• 대한영양사협회학술지
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• 제5권1호
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• pp.64-73
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• 1999

Carbohydrate(CHO) counting is a meal planning approach used with diabetic patients that focuses on carbohydrate as the primary nutrient affecting post-prandial glycemic response. However, it has not been used in meal management of diabetic patients in Korea. CHO counting can be used by clients with type 1 and 2 diabetes. The purpose of the study was to determine the barriers to utilize the CHO counting when three levels of CHO counting were educated to type 2 diabetic patients who started continuous subcutaneous insulin infusion (CSⅡ) therapy by nutrition lectures and counseling. And the CHO-to-insulin ratios were determined for the individual patients who followed the carbohydrate counting as a meal management, and the factors to influence the CHO-to-insulin ratios were selected through the stepwise regression analysis. Twenty- four subjects were received three lectures, and one or two nutritional counseling for a month. The average age of the subjects was 50.7 years, and the duration of diabetes was 9.4 years. Their body mass index (BMI) was 21.5 kg/$m^2$. The difficulties of using CHO counting were 1) confusing the CHO exchange system to diabetic food exchange system, 2) lack of basic nutrition and not distinguishing nutrients such as CHO, fat and calorie, and 3) lack of motivation to make effort to count and record the amount of carbohydrates eaten. Nutritional counseling replenished the nutrition education and made patients practice CHO counting. Average CHO-to-insulin ratios at breakfast, lunch and dinner were 4.1$\pm$3.3, 2.9$\pm$2.6 and 2.9$\pm$3.0units/23g of CHO, respectively. CHO-to-insulin ratios were influenced by gender, age, BMI, post-prandial blood glucose levels and post-prandial c-peptide levels. The effective education and nutritional counseling of CHO counting can make CHO counting applicable to type 2 diabetic patients as meal management for improving glycemic control with less hypoglycemic episode.

• 사상체질의학회지
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• 제27권2호
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• pp.231-239
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• 2015

Objectives The purpose of this study is to find out whether or not there are differences of effects when we count breaths on inspiration or expiration, and how differently the effects show up according to gender or Sasang Constitution Methods A group of 79 participants were enrolled and diagnosed Sasang Constitution by Sasang Constitution Diagnosis System of the Korea Institute of Oriental Medicine. Physical responses to respiratory changes were measured by Biofeedback sensors that were attached to the participants while they were seated comfortably on a sofa and breathing normally without counting for 5 minutes, counting on inspiration for 5 minutes, and counting on expiration for 5 minutes. Results and Conclusions 1. Mean heart rate and respiration rate decreased in association with breathing counting on inspiration and expiration more than breathing normally without counting. Especially respiration rate was stabilized during counting on inspiration and mean heart rate was stabilized during counting on expiration. 2. Interaction between breathing methods and gender did not appear. In comparison between gender, LF/HF ratio was higher in male during breathing normally without counting and counting on inspiration. Body temperature was higher in male during counting on inspiration and expiration. 3. Interaction between breathing methods and Sasang Constitution did not appear. In comparison between Sasang Constitution, mean heart rate was higher in Soyang-in, Soeum-in than Taeeum-in and abdominal amplitude was lower in Taeeum-in than Soeum-in.

• 제어로봇시스템학회논문지
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• 제11권9호
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• pp.810-815
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• 2005

As the pharmaceutical industry grows and becomes more competitive, the need of automation increases to establish effective mass production and to maintain consistent quality control. Accurate counting and packing of medicinal pills is one of the most essential processes that the automation can benefit. In conventional automated counting and packing processes, the performance of counting process varies with the size, the shape and the dispersion degree of pills. In this research, the authors developed a new pill-counting algorithm based on carefully analyzed characteristics of the pill-drop behavior. Also a new scheme for the packing of an exact number of pills has been implemented. A pill counting and packing machine with the new pill-counting algorithm and the new packing scheme has been constructed and put in an actual production line. To achieve precise and quick sensing of pills dropping at a high speed from the preceding processors, the machine uses non-contact photo sensors. Experimental results from the actual process using the machine are included to verify the effectiveness of the proposed algorithm and the machine.

• 한국경영과학회지
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• 제42권1호
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• pp.19-28
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• 2017

Moments of stationary intervals and those of the counting process can be used for moment fittings of the point processes. As for the Markovian arrival processes, the moments of stationary intervals are given as a polynomial function of parameters whereas the moments of the counting process involve exponential terms. Therefore, moment fittings are more complicated with the counting process than with stationary intervals. However, in queueing network analysis, cross-correlation between point processes can be modeled more conveniently with counting processes than with stationary intervals. A Laplace-Stieltjies transform of the stationary intervals of MAP (3)s is recently proposed in minimal number of parameters. We extend the results and present the Laplace transform of the counting process of MAP (3)s. We also show how moments of the counting process such as index of dispersions for counts, IDC, and limiting IDC can be used for moment fittings. Examples of exact MAP (3) moment fittings are also presented on the basis of moments of stationary intervals and those of the counting process.