• Title/Summary/Keyword: counting on

Search Result 1,311, Processing Time 0.029 seconds

From Counting to Mathematical Structure

  • Cheng, Chun Chor Litwin
    • Research in Mathematical Education
    • /
    • v.12 no.2
    • /
    • pp.127-142
    • /
    • 2008
  • The most important aim of mathematics education is to promote mathematical thinking. In the Hong Kong primary school, mathematical thinking is usually conducted through the use of formula and working on "application problem" or "word problems". However, there are many other ways that can promote mathematical thinking, and investigation on mathematical structure by using counting is one important source for promoting mathematical thinking for primary school children, as every children can count and hence a well designed question that can be solved by counting can enable children of different abilities to work together and obtain different results.

  • PDF

Report on Two Cases of Treatment of Anxiety Disorder with Panic Attacks-on the Basis of Breath-Counting Meditation (Anapanasati)

  • Yoo, Song-Wun;Kim, Dong-Uk;Park, Se-Jin
    • Journal of Oriental Neuropsychiatry
    • /
    • v.26 no.1
    • /
    • pp.1-10
    • /
    • 2015
  • Objectives: The purpose of this study was to evaluate the effect of breath-counting meditation on anxiety disorder patients with panic attack. Methods: Two anxiety disorder patients with panic attack were treated with Breath-counting Meditation, acupunctures, and herb-medications. The patients have been predicted for anxiety disorder with panic attack through Dignosis and Statistical Manual (DSM-IV), Panic Disorder Severity Scale (PDSS), BDI (Beck Depression Inventory), and BAI (Beck Anxiety Inventory) on their 1st and 6th treatments. Results: After the treatments, both the physical and psychological symptoms have decreased. Conclusions: This study suggests that the breath-counting meditation is an effective way for treating patients who are suffering from anxiety disorder with panic attack.

On Counting-based and Collection-based Computation of Addition and Subtraction Teaching of Natural Number in Korea and United States of America. - Focused on using Number line - (한국과 미국의 자연수 덧셈과 뺄셈 지도에서 세기와 묶음에 기초한 계산방법의 고찰 - 수직선의 활용을 중심으로 -)

  • Choi, Chang Woo
    • East Asian mathematical journal
    • /
    • v.34 no.2
    • /
    • pp.85-101
    • /
    • 2018
  • The purpose of this paper is to investigate counting-based and collection-based computation of the elementary mathematics textbook in Korea and United States of America. As a results, we will provide some suggestive points through how to use and activity of number line, decomposing number, counting, grouping and so on by analyzing counting and collection-based computation in the elementary mathematics textbook of Korea and United States of America.

The Development of Visitor Counting System Based on Ubiquitous Sensor Networks in National Park: Case Study of Nogodan Area in Chirisan National Park (유비쿼터스 센서 네트워크 기반 국립공원 탐방객 통행량 계수시스템 개발)

  • Lee, Ju-Hee;Sim, Kyu-Won;Bae, Min-Ki
    • Journal of Environmental Science International
    • /
    • v.17 no.1
    • /
    • pp.77-83
    • /
    • 2008
  • The purpose of this study was to develop the national park visitor counting system using the ubiquitous sensor network. This system is composed of a sensor node, sink node, gateways, CDMA module, server, and clients. The results of the study were: 1) stable data transmission distance was possible within 100 meters between sensor nodes, 2) the developed counting sensor system showed a network communication stability level of 88.3 percent in 1.2m wide trails. When installed in concentrate use areas or forks of national parks, the visitor counting system will not only contribute to provide reliable visitor counting, but also to improve the quality of national park visitor service, to manage park facilities and natural resources more efficiently, to achieve an information oriented national park system.

A Study on Pedestrian Counting in Outdoor Environment (야외환경에서의 보행자 계수 방법 연구)

  • Kim, Gyu-Jin;An, Tae-Ki;Shin, Jeong-Ryeol;Song, Min-Ji
    • Proceedings of the KSR Conference
    • /
    • 2011.10a
    • /
    • pp.1973-1978
    • /
    • 2011
  • The almost existing automated pedestrian systems are not well suited to the task of counting pedestrians in outdoor environments, and little is known about their effectiveness and accuracy. In this paper, we proposed a system to count pedestrians in crowds from a outdoor camera. And we describes pedestrian counting which detects and count moving people based pixel counting. This method is intended to estimates the number of people in outdoor environment.

  • PDF

Another Look at Average Formulas of Nevanlinna Counting Functions of Holomorphic Self-maps of the Unit Disk

  • Kim, Hong-Oh
    • Kyungpook Mathematical Journal
    • /
    • v.48 no.1
    • /
    • pp.155-163
    • /
    • 2008
  • This is an extended version of the paper [K] of the author. The average formulas on the circles and disks around arbitrary points of Nevanlinna counting functions of holomorphic self-maps of the unit disk, given in terms of the boundary values of the selfmaps, are shown to give another characterization of the whole class or a special subclass of inner functions in terms of Nevanlinna counting function in addition to the previous applications to Rudin's orthogonal functions.

A Study of the Non-Contact Bill Counter using Optical Fiber Sensor (광섬유 센서를 이용한 지폐 계수 장치에 관한 연구)

  • Kang, Dae-Hwa;Shin, Woo-Cheol;Song, Doo-Sang;Jang, Tak-Soon;Hong, June-Hee
    • Transactions of the Korean Society of Machine Tool Engineers
    • /
    • v.16 no.6
    • /
    • pp.231-236
    • /
    • 2007
  • In this paper, we studied the possibility of non-contact bill counting method using optical fiber sensor instead of traditionally used friction counting method. To implement non-contact counting, we designed and made optical fiber sensor and related parts. optical fiber sensor is made of optical fiber of 1mm diameter, photo diode and laser diode. Based on the conclusion which derived from preliminary experiment, instrument part is designed to make unevenness on the surface of bill paper and to stay parallel with optical fiber section. By analyzing the signal of optical sensor, we made counting program. Experimental instrument is composed of sensor part, instrument part, signal handling part. We checked the possibility of non-contact counting method after implementing experiment by using optical fiber sensor and instrument part.

Four-Year-Old Children's Counting Skills and Their Mothers' Use of Number Words: The Mediating Role of Children's Number Word Use (4세 유아의 수세기 기술과 어머니의 수 단어 사용: 유아 수 단어 사용의 매개효과)

  • Jihyeon Park;Youjeong Park;Yujin Lee;Sunjung Baik;Sukyoung Choe
    • Korean Journal of Childcare and Education
    • /
    • v.19 no.6
    • /
    • pp.79-95
    • /
    • 2023
  • Objective: This study examines the relationships among four-year-olds' counting skills, their use of number words, and their mothers' use of number words during mother-child free play. Specifically, we assess whether children's use of number words mediates the relationship between their counting skills and their mothers' use of number words during play. Methods: Forty-two 4-year-old children and their mothers were asked to play freely with a given set of toys at their home for 10 minutes. Children also completed a counting skill test. Frequencies of number word use were calculated for mothers and children from transcriptions of the free play. Results: Children's counting skills, the frequency of their number word use, and their mothers' frequency of number word use were positively correlated with each other. Additionally, the frequency of children's number-word use completely mediated the relationship between their counting skills and their mothers' frequency of number-word use. Conclusion/Implications: The results suggest that children's use of number language may play a crucial role in the provision of number-related language input by parents, based on their children's math skills. Practical implications of the findings are discussed.

A Segmentation Method for Counting Microbial Cells in Microscopic Image

  • Kim, Hak-Kyeong;Lee, Sun-Hee;Lee, Myung-Suk;Kim, Sang-Bong
    • Transactions on Control, Automation and Systems Engineering
    • /
    • v.4 no.3
    • /
    • pp.224-230
    • /
    • 2002
  • In this paper, a counting algorithm hybridized with an adaptive automatic thresholding method based on Otsu's method and the algorithm that elongates markers obtained by the well-known watershed algorithm is proposed to enhance the exactness of the microcell counting in microscopic images. The proposed counting algorithm can be stated as follows. The transformed full image captured by CCD camera set up at microscope is divided into cropped images of m$\times$n blocks with an appropriate size. The thresholding value of the cropped image is obtained by Otsu's method and the image is transformed into binary image. The microbial cell images below prespecified pixels are regarded as noise and are removed in tile binary image. The smoothing procedure is done by the area opening and the morphological filter. Watershed algorithm and the elongating marker algorithm are applied. By repeating the above stated procedure for m$\times$n blocks, the m$\times$n segmented images are obtained. A superposed image with the size of 640$\times$480 pixels as same as original image is obtained from the m$\times$n segmented block images. By labeling the superposed image, the counting result on the image of microbial cells is achieved. To prove the effectiveness of the proposed mettled in counting the microbial cell on the image, we used Acinetobacter sp., a kind of ammonia-oxidizing bacteria, and compared the proposed method with the global Otsu's method the traditional watershed algorithm based on global thresholding value and human visual method. The result counted by the proposed method shows more approximated result to the human visual counting method than the result counted by any other method.

Navigation based Motion Counting Algorithm for a Wearable Smart Device (항법 기반 웨어러블 스마트 디바이스 동작 카운트 알고리즘)

  • Park, So Young;Lee, Min Su;Song, Jin Woo;Park, Chan Gook
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.21 no.6
    • /
    • pp.547-552
    • /
    • 2015
  • In this paper, an ARS-EKF based motion counting algorithm for repetitive exercises such as calisthenics is proposed using a smartwatch. Raw sensor signals from accelerometers and gyroscopes are widely used for conventional smartwatch counting algorithms based on pattern recognition. However, generated features from raw data are not intuitive to reflect the movement of motions. The proposed motion counter algorithm is composed of navigation based feature generation and counting with error correction. The candidate features for each activity are velocity and attitude calculated through an ARS-EKF algorithm. In order to select those features which reveal the characteristics of each motion, an exercise frame from the initial sensor frame is introduced. Counting processes are basically based on the zero crossing method, and misdetected counts are eliminated via simple classification algorithms considering the frequency of the counted motions. Experimental results show that the proposed algorithm efficiently and accurately counts the number of exercises.