• 제목/요약/키워드: falling weight

검색결과 197건 처리시간 0.029초

전신진동운동이 드랍랜딩점프 동작에 미치는 영향 (Effect of Whole Body Vibration Training in Drop Landing Jump)

  • 홍수연;장영관;김진현
    • 한국산학기술학회논문지
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    • 제19권3호
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    • pp.423-429
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    • 2018
  • 연구목적 본 연구의 목적은 전신진동운동(whole body vibration exercise)이 드랍랜딩점프(drop landing jump) 동작에 미치는 영향을 규명하는 것으로 진동운동그룹(n=5, VEG, Vibration Exercise Group)과 단순운동그룹(n=5, OEG, Only Exercise Group)을 4주 동안 트레이닝 시킨 후 운동 전과 운동 4주 후 변화를 비교 분석하였다. 실험방법 3차원 영상 데이터는 10개의 적외선카메라(Vicon, UK)를 샘플링 율, 100 Hz.를 사용하여 획득하였으며, 하지 관절의 파워는 2대의 지면반력기(AMTI, USA)를 샘플링 율 1000Hz.로 데이터를 획득 하였다. 연구결과 첫째, 무게중심의 변동성은 하강국면에서 가장 크게 나타나 점프 후 착지 시 상해위험성이 큰 것으로 나타났다. 둘째, 진동운동그룹은 훈련기간에 관계없이 단순운동그룹보다 점프높이가 증가하였다. 셋째, 운동그룹간의 관절파워가 4주 훈련 후 엉덩관절 P1(굴곡)과 무릎관절 P2(신전)에서 통계적으로 유의한 차이를 보였으나, 훈련기간에 따른 하지의 관절파워는 모든 국면과 운동그룹에 관계없이 통계적으로 유의한 차이를 보이지 않았다. 결론 훈련기간에 관계없이 진동과 운동을 병행한 진동운동그룹이 운동만을 수행한 단순운동그룹보다 점프높이에 증가를 가져왔으나 점프높이와 하지의 관절 파워와의 일관성 규명할 수 없었다.

롤러신발과 일반신발의 착용 후 보행 시 하지근의 근전도 비교 (The Effects of Wearing Roller Shoes on Muscle Activity in The Lower Extremity During Walking)

  • 채원식;임영태;이민형;김정자;김연정;장재익;박원균;진재흥
    • 한국운동역학회지
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    • 제16권3호
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    • pp.137-148
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    • 2006
  • The purpose of this study was to compare muscle activity in the lower extremity during walking wearing jogging and roller shoes. Twelve male middle school students (age: 15.0 yrs, height 173.7 cm, weight 587.7 N) who have no known musculoskeletal disorders were recruited as the subjects. Seven pairs of surface electrodes (QEMG8, Laxtha Korea, gain = 1,000, input impedance >$1012{\Omega}$, CMMR >100 dB) were attached to the right-hand side of the body to monitor the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF), tibialis anterior (TA), and medial (GM) and lateral gastrocnemius (GL) while subjects walked wearing roller and jogging shoes in random order at a speed of 1.1 m/s. An event sync unit with a bright LED light was used to synchronize the video and EMG recordings. EMG data were filtered using a 10 Hz to 350 Hz Butterworth band-passdigital filter and further normalized to the respective maximum voluntary isometric contraction EMG levels. For each trial being analyzed, five critical instants and four phases were identified from the recording. Averaged IEMG and peak IEMG were determined for each trial. For each dependent variable, paired t-test was performed to test if significant difference existed between shoe conditions (p<.05). The VM, TA, BF, and GM activities during the initial double limb stance and the initial single limb stance reduced significantly when going from jogging shoe to roller shoe condition. The decrease in EMG levels in those muscles indicated that the subjects locked the ankle and knee joints in an awkward fashion to compensate for the imbalance. Muscle activity in the GM for the roller shoe condition was significantly greater than the corresponding value for the jogging shoe condition during the terminal double limb stance and the terminal single limb stance. Because the subjects tried to keep their upper body weight in front of the hip to prevent falling backward, the GM activity for the roller shoe condition increased. It seems that there are differences in muscle activity between roller shoe and jogging shoe conditions. The differences in EMG pattern may be caused primarily by the altered position of ankle, knee, and center of mass throughout the walking cycle. Future studies should examine joint kinematics during walking with roller shoes.

시변 가변차단주파수 저역통과필터를 이용한 심전도 고주파 잡음의 제거 (High Frequency Noise Reduction in ECG using a Time-Varying Variable Cutoff Frequency Lowpass Filter)

  • 최안식;우응제;박승훈;윤영로
    • 대한의용생체공학회:의공학회지
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    • 제25권2호
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    • pp.137-144
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    • 2004
  • 심전도 신호에는 근 잡음과 전원잡음 둥의 잡음이 섞이는 경우가 많다. 이러한 잡음들은 심전도 신호의 주요 주파수 성분에 비하여 상대적으로 고주파 성분이지만 전체적으로 보면 주파수 스펙트럼이 중첩된다. 본 논문에서는 연속적으로 변하는 차단주파수를 가지는 시변 저역통과 디지털필터를 이용하여 원신호의 왜곡을 최소화하면서 잡음을 제거하는 신호처리 방법에 대하여 기술한다 이 필터는 차단주파수 제어기와 가변차단주파수 저역통과필터로 구성된다. 차단주파수 제어기는 잡음이 포함된 심전도 신호로부터 신호의 기울기를 이용하여 차단주파수 제어 신호를 생성한다. 가변차단주파수 저역통과필터의 구현을 위해서 본 논문에서는 컨벡스 조합 필터와 계수보간 필터로 불리는 새로운 두 가지 필터 설계방법을 제안하였으며, 이 두 가지 방법을 이용함으로써 저역통과필터의 차단주파수를 임의의 제한된 구간에서 연속적으로 변화시키는 것이 가능하였다. 고주파 잡음이 첨가된 심전도 신호에서 가변차단주파수 저역통과필터의 잡음 제거 능력이 우수함을 보였으며, 본 논문에서 제안된 가변차단주파수 저역퉁과필터는 심전도 신호의 전처리에 유용하게 사용되어질 것으로 판단된다. 특히, 제어된 환경이 아닌 일상생활 환경에서 심전도를 측정하는 재택건강관리 시스템에서 신호의 품질을 개선하는 데에 효과가 있을 것으로 기대한다.

관절염환자(關節炎患者)의 특성(特性)에 대한 조사(調査) 연구(硏究) (A Research in the Characteristic of Arthritis Patienth)

  • 강점덕;남철현;김기열
    • 대한예방한의학회지
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    • 제1권1호
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    • pp.149-165
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    • 1997
  • In order that, investigating the feature of patients suffering arthritis, analysing its contents, and grasping a Primary factor affecting it, I might offerbasic datas which could help to plan and perform healthy affairs to thake precautions beforehand, I have investigated, analysed, and studied a total of 320 patients suffering arthritis, who have received physiotherapy in hospital located in Teaegu area for five months, from November 1 1995 to March 30 1996, of which summary and conclusion is this. 1. The general feature of patients in investigative objects In the distribution of the distinction of sex, men accounted for 26.9% and women, for 73.1%, and, in the fistribution of age, 60-year-old or more, most for 27.2% and from 20 to 29 years old, least for 14.0%. In the distinction of a vocation, housewives most accounted for 34.7% and students(jobless men), least for 19.3%. In the distinction of a matrimonial state, married persons most accounted for 76.7% and people living alone(divorce, separation by death, separation), least for 11.4%. In the distinction of an economic state, the middle classes most accounted for 73.5% and the upper classes, least for 2.9%. In the distinction of their academic careers, graduates of a primary school most accounted for 26.9% and graduates of university, for 14.1%, of which patients, having the ability to decode the national language, reached to 11.3%. In the distinction of the house form, people living in independent houses most accounted for 76.4% and residents in apartment(having an elevator), least for 9.4%. 2. In the distribution of the recurring state in the distinction of the feature, the recurring group was more than the group of patients falling that ill at first as 62.2% and in the distinction of the feature of the recurring group, the recurring group turned high in case of men being from 50s to 60s years old or more, people living alone (divorce, separation by death, separation), students (joblessmen), people working in farming, stockbeeding, forestry, fisheries, a simple labour, graduates of a primary school I having the ability to decode the national language, the upper classes, people part two years since they begined to suffer arthritis, people who had members having ever experienced arthritis among families. 3. In the distribution of arthritis on the distinction of bodily pars, a knee articulation most accounted for 50.2% and the articulation of fingers, for 8.8%, wile the simultaneous, several parts (multiple) accounted for 35.1%. In the distinction of the feature, arthritis of a knee turned high in case of men being from 20s to 30s years old, unmarried persons, people having academic careers of university, the middle classes, residents in apartment (having stairs). In the dictnction of a feature the case of several parts (multiple) turned high in case of women being from 50s to 60s years old or more, people living alone (divorce, separation by death, separation), people having the ability to decode th. national language, the graduates of a primary school, the upper classes, residents in apartment (having elevator). 4. In the distribution of arthritis on e distinction of a contracting term, two years or more most accounted for 51.6% and the case of contacting from one year to two years, for 15.3%. Analysing the distinction of the feature, the case of two years or more turned high in case of women being from 50s to 60s years old or more, people living alone (divorce separation by death, separation), the upper classes, people having the ability to decode the national language, residents in apartment (having elevator). 5. In the distribution of an treatment institution before patients came to help, their not curing most accounted for 39.1%, general, orthopedic, neurological surgery (physical therapy), for. 20.0%, and th. therapy of Chinese medicine (acupuncture, moxacautery, Chinese medicine), for 17.5%, and a pharmacy (medical therapy), for 13.4%. The case of patients not curing, in the distinction of a feature, turned high in case of men 20s years old, unmarried, the lower classes, people having academic careers of university, residents in apartment (having elevator). 6. In e distribution of the extent of satisfaction with treatment, common most accounted for 54.4% and some satisfaction, for 32.8%. The case of common, in the distinction of a feature, turned high, in case of men living alone from 50s to 60s years old (divorce, separation by death, separation), married persons, the upper classes, people having academic careers of university, residents in independent house, residents in apartment (having elevator), 7. In the distribution of the degree of knowledge of the cause of arthritis, patients knowing that the cause is to use very much a articulation in normal times most accounts for 60.1%, and patients knowing the state of short nutrition as a cause, for 2.5%. The case of patients knowing that the cause is to use very much in normal times, in the distinction of a feature, turned high in·case of ment being 20s and 60s years old or more, unmarried persons, e lower classes, people having the ability to decode. the national language, people having academic careers of university, residents in apartment (having stairs), 8. In the distribution of the state of physical exercise before arthritis contracted, patients exercising very much on the whole most accpimend for 40.3%, and patients not exercising, for 34.7%. The case of patients exercising very much on the whole, in the distinction of the feature, turned high in case of men being from 50s to 60s years old or more, people living alone(divorce, separation by death, separation), the lower classes, people having the ability to decode the national language, graduates of a primary school, residents in apartment (having elevator). 9. In the taste of patients suffering from arthritis, while the group of patients falling that ill at first and the recurring group didn't smoke cigarets, during alcohol and coffee on the whole, and the group of patients falling once again that ill drank a cup of distilled linquor and three cup of coffee or more on the whole per one day, and the group of patients falling that ill at first liked sort of vegetables and the recurring group liked very much sons of vegetables and fresh and meat in their loving food normal times. 10. Analysing the distribution on the dining table used by patients and the structure of a powder room, at first, in the structure of a powder room, the group of patients filling that ill have a toilet stool using as their sits, and a Bush toilet on the whole, and the recurring group, a toilet stool using as their sits and conventional type, and in the structure of a dinning table, the group of patients falling that ill at first and the recurring group turned high, each as 66.9% and 6.3%, who have a dining table carring here and there. 11. In the distribution of patients of arthritis in relation to stress, the case that they feeled severly symptoms of arthritis when thay got stress, turned high, each, as 78.6% in the recurring poop, and the case not knowing, as 61.5% in the first group. In the extent of stress normal times, the case that they got much stress on the whole turned high, each, as 72.4% in e recurring group, and the care that got less stress on the whole, as 60.0%. 12. In the distribution on the distinction of symptoms and impedimental extent, the recurring group turned high in each variable. Analysing the feature of the recurring group, in the distinction of symptoms, the case that they fooled much that the node of an articulation is stiff, turned high, as 71.6, and in the distinction of treatment before. patients came to helpk, the theraphy of Chinese medicine (physical theraphy), as 84.4%, the theraphy of Chinese medicine (acupuncture, moxacautery, Chinese medicine), as 73.2%, and in the distinction of the satisfing extent on treatment, the case of comman, as 72.3%, and in the cause of arthritis, the case not recruiting their health after a birth, as 68.5%, and the case not recovering wholely an articulation having got hurt, as 62.8%, and in the state of physical exercise before they begined suffering from arthritis, the case exercising very much on the whole, (as 74.2%), and in the extent of subjective impediment, the case of not being able to act almost, as 66.7%, the case of acting but feeling some hard, as 66.3%. 13. The correlation in variables in relation to arthritis Analysing realted variables, the recurring frequency showed correlation with such as the extent that patients got stress normal times, and the exercising state before suffering arthritis, and showed contra-correlation with academic careers, the wights, coffee. The cigaret, e loving food of taste, showed corralation with the weight, stature, alcohole as the loving food of taste. On the basis of this result medical members of heal, who are related to the regular education, public education or development of this program, should be concerned to prevent orthris.

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수목 도복의 3D 충격량 산출 기법 개발 (Development of 3D Impulse Calculation Technique for Falling Down of Trees)

  • 김채원;김충식
    • 한국조경학회지
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    • 제51권2호
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    • pp.1-11
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    • 2023
  • 수목의 파손은 주변 재산과 생명에 치명적인 위험을 초래한다. 특히, 도복으로 인한 위험은 피해범위가 넓고, 충격의 강도가 높기 때문에 선제적으로 대응하는 것이 중요하다. 이에 도복 시 예상되는 잠재적 위험범위를 산정하거나 위험등급을 평가한 시도가 있었지만, 구체적인 물리량으로 위험을 정량화하지 못하였다. 또한, 수목과 피해대상의 형상을 입체적으로 반영하지 못했다는 아쉬움이 있다. 본 연구는 수목의 도복 시 발생할 수 있는 위험범위와 충격량을 정량적, 입체적으로 예측하기 위한 기법의 개발을 목적으로 하였다. 주요 결과는 다음과 같다. 첫째, 수목의 도복 시 발생하는 위험범위와 충격량 산출식을 정립하였다. 위험범위 산출 시 수목이 쓰러져 미끄러지는 가능성을 반영해 수고의 1.5배를 반경으로 하는 원의 내부 범위로 확대하여 계산하였다. 수목의 기울기에 따라 직립으로 생육하는 수목은 근원부를 중심으로 360° 범위, 기울어져 생육하는 수목은 기운 방향에서 180° 범위로 설정하였다. 충격량은 충돌이 발생하기 직전 수목의 나중운동량이 피해대상에 전달되는 현상을 이용해 산출하였다. 또한, 수목이 쓰러질 때 근원부를 기점으로 회전운동 하는 것을 반영해 각운동량을 산출하였으며, 이를 선운동량으로 전환하여 충격량을 계산하였다. 둘째, Rhino3D와 Grasshopper를 이용하여 위험범위, 충격량 산출 알고리즘을 개발하였다. 알고리즘은 3차원 모델 제작, 산출, 조회 기능으로 구성하였다. 3차원 모델은 Rhino3D를 이용하여 지형, 건물, 수목의 형상을 입체적 모델로 제작하였고, 이를 Grasshopper에 연결하여 공간정보를 구축하였다. 산출 기능에서는 산출식을 활용하여 알고리즘을 코딩하였다. 산출 시 수고, 기울기, 중량 등 수목의 생육 정보와 인접수목, 피해대상, 분석범위 등 주변 환경을 고려하였다. 조회 기능에서는 산출 결과를 종합하여 3차원 모델에 가시화하였다. 산출값에 따라 색상으로 구분하여 위험수목과 위험구역을 효율적으로 판단하였다. 본 연구는 수목의 도복 시 발생하는 잠재적 위험범위와 충격량을 정량적으로 산출하고, 이를 가시화하여 우선관리가 필요한 대상을 효율적으로 판단하는 방법을 제시하였다. 이는 도복 발생 시, 주변 건물과 관람객의 안전을 위한 대책 수립 및 재난 예방의 기초자료로 활용될 수 있을 것이다. 또한, 도심지와 공원, 문화재구역에서 명확한 기준 없이 진행되는 수목의 제거를 방지하는데 기여할 것이다.

지역별(地域別)로 본 소년기(少年期)의 영양섭취상태(營養攝取狀態)가 체위향상(體位向上)에 미치는 영향(影響) (The Effects of the Nutrition in the Boyhood upon the Improvement of the Body in Various Regions)

  • 이금영
    • 한국식품영양과학회지
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    • 제5권1호
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    • pp.39-51
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    • 1976
  • We arrive at the conclusion as follows as for the connection between dietary life, hours of exercise and growth of body, based on the survey of their height, this circumference of the breast and their body weight, and the questionnaires to the pupils of 36,547 in totals (contained the primary and middle school boys and girls) in four districts(named A, B, C and D district) of Jeonlla Bug Do from April, 1970 to March, 1973. (1) The growth in height. The boys from 6 to 7 years old are nearly same in all districts, but as age increases, those of A district grow more rapidly than those of B, C and D districts, while those of B, C and D districts grow almost samely. The girls already from 6 years old on are different between A district and B, C, D district. The average of height in Jeonlla Bug Do is not different from that of Gyungi Do and whole nation in the pupils from 6 to 11 years old, and that of Japan from 6 to 7 of age, while it falls behind them as age increases. (2) The growth in the circumference of the breast. The boys from 6 to 9 years old show nearly the same tendency in all districts, after that age the boys in A district tend to grow rapidly, those in B district most fall behind, and those in C, D districts show the same tendency. Contrasted with height the growth in the circumference of the breast does not show the difference in each district so far as 14 of age, but after 15 years old it shows a little difference by falling behind of pupils in A district, while those B, C, D districts show almost the same tendency. The average of the circumference of the breast in Jeonlla Bug Do of the pupils from 10 to 11 of age is almost same to that of Gyungi Do, whole nation and Japan, but shows difference after that age. (3) The growth of body weight. The body weight of boys over-all the investigated whole age shows the superiority in A district and a little lowness in D district which is almost same to that of B, C districts. In that of girls, A district is superior in from 6 to 9 of age, and all districts are nearly same after that age. The average in Jeonlla Bug Do is one and the same to those of Gyungi Do, whole nation and Japan as in the height, but shows the great difference as years grow. (4) The dietary life of the pupils in Jeonlla Bug Do depends chiefly upon a carbohydrate and is very low in the intake of fat and protein. Connected with a view point of districts, the intake of protein is a little more in A district than in the other districts, and is nearly same in the other districts. They tend more to eat mixed food, but about 40% of them do not yet eat it. The contents and taking of lunch is bad in the highest degree, to which their parents are entirely indifferent. As far as the hours of exercise are concerned with, about 40% of all pupils must go to the school from very far, which gives them the heavy physical suffering, and especially it is remarked that the middle school boys and girls should attend school from farther than the primary school boys and girls.

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정적자세에서 유도된 비정시의 유형에 따른 신체균형의 변화 (Changes of Body Balance on Static Posture According to Types of Induced Ametropia)

  • 김상엽;문병연;조현국
    • 한국안광학회지
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    • 제19권2호
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    • pp.239-246
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    • 2014
  • 목적: 정적자세에서 유도된 비정시가 신체균형에 미치는 영향을 알아보았다. 방법: 평균 연령 $23.4{pm}2.70$세의 20명(남 10, 여 10)을 대상으로 ${pm}0.50D$, ${\pm}1.00D$, ${\pm}1.50D$, ${\pm}2.00D$, ${\pm}3.00D$, ${\pm}4.00D$, ${\pm}5.00D$의 렌즈를 사용하여 비정시(양안근시, 단순근시성부동시, 양안원시, 단순원시성부동시)를 유도하였다. TETRAX the biofeedback system을 이용하여 신체안정성지수, 체중분포지수, 낙상지수를 측정하였다. 신체균형 검사는 각 조건 당 32초간 측정되었고, 반복측정 후 완전교정상태에서 측정한 값과 비교하였다. 결과: 안정성지수는 양안근시의 경우 +0.50 D부터, 단순근시성부동시의 경우 +1.00 D부터, 양안원시의 경우 -1.00 D부터, 단순원시성부동시의 경우 -1.50 D부터 완전교정상태와 비교하여 유의하게 증가되었다. 낙상지수는 양안근시의 경우 +4.00 D부터, 양안원시의 경우 -1.00 D부터, 단순원시성부동시의 경우 -1.50 D부터 유의하게 증가되었다. 모든 비정시 유형에서 체중분포지수의 변화는 없었다. 결론: 비정시의 유형에 상관없이 굴절이상의 미교정은 신체균형의 전반적인 안정성을 감소시키고, 낙상의 위험도를 증가시킬 수 있다.

공항 콘크리트 포장의 잔존수명 산출 논리 개선 연구 (Development of a Procedure for Remaining Life Estimation in Airfield Concrete Pavement)

  • 권수안;서영찬;조용주
    • 한국도로학회논문집
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    • 제8권1호
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    • pp.131-138
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    • 2006
  • 공항 콘크리트 포장은 설계기준을 역순으로 하거나, FWD 장비로부터 얻어진 탄성 계수를 근거로 포장체의 잔존수명을 추정하여 왔었다. 그러나 FWD로부터 얻어진 탄성계수 값은 역산 방법에 따라 변동성이 심하므로 잔존수명의 일관성이 결여된 한계가 있다. 또한 구조적 측면만 고려하여 포장의 상태를 평가하므로. 기능적 측면을 반영하지 못하는 한계가 있었다. 따라서 본 연구에서는 공항 콘크리트 포장의 잔존수명 산출에 있어서 구조적 측면 및 기능적 측면 모두를 고려하는 논리를 제시하였으며, 각 논리별 세부 절차별에 있어서의 기준 및 모델 적용을 제안하였다 구조적 잔존수명 추정 논리를 개선하기 위해 오래된 공항을 대상으로 하여 하중을 받은 구간과 받지 않은 구간에서의 잔존수명 추정 인자 선정을 위한 실험을 실시하였다. 그 결과 기존에 주로 사용되어 왔던 탄성계수보다는 하중전달효율이 잔존수명 추정 인자로 규명되었다. 새롭게 개발한 잔존수명 추정 논리 및 세부 모형들의 현장 적용성을 파악하기 위하며 오래된 공항 한 개소를 선정하였다. 새로운 논리에 따라 현장 실험 및 분석을 수행한 결과 실무에 적용하는데 무리가 없음을 알 수 있었다.

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도로함몰 위험도 평가를 위한 실대형 포장가속시험 기초 연구 (A Preliminary Study for Assessing the Risk of Road Collapse Using Accelerated Pavement Testing)

  • 박희문;김연태;최지영;김기현
    • 한국도로학회논문집
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    • 제18권5호
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    • pp.57-62
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    • 2016
  • PURPOSES : The objective of this study is to evaluate the effect of size and depth of cavities on the pavement failure using the full-scale accelerated pavement testing. METHODS : A full-scale testbed was constructed by installing the artificial cavities at a depth of 0.3 m and 0.7 m from the pavement surface for accelerated pavement testing. The cavities were made of ice with a dimension of 0.5 m*0.5m*0.3m, and the thickness of asphalt and base layer were 0.2 m and 0.3 m, respectively. The ground penetrating radar and endoscope testing were conducted to determine the shape and location of cavities. The falling weight deflectometer testing was also performed on the cavity and intact sections to estimate the difference of structural capacity between the two sections. A wheel loading of 80 kN was applied on the pavement section with a speed of 10 km/h in accelerated pavement testing. The permanent deformation was measured periodically at a given number of repetitions. The correlation between the depth and size of cavities and pavement failure was investigated using the accelerated pavement testing results. RESULTS : It is found from FWD testing that the center deflection of cavity section is 10% greater than that of the intact section, indicating the 25% reduction of modulus in subbase layer due to the occurrence of the cavity. The measured permanent deformation of the intact section is approximately 10 mm at 90,000 load repetitions. However, for a cavity section of 0.7 m depth, a permanent deformation of 30 mm was measured at 90,000 load repetitions, which is three times greater than that of the intact section. At cavity section of 0.3 m, the permanent deformation reached up to approximately 90 mm and an elliptical hole occurred at pavement surface after testing. CONCLUSIONS : This study is aimed at determining the pavement failure mechanism due to the occurrence of cavities under the pavement using accelerated pavement testing. In the future, the accelerated pavement testing will be conducted at a pavement section with different depths and sizes of cavities. Test results will be utilized to establish the criteria of risk in road collapse based on the various conditions.

누에똥 간이 수집장치 개발 (Development of Collecting System of Silkworm Excreta Using a Devised Equipment)

  • 정이연;강필돈;김기영;이상욱;김미자;류강선
    • 한국잠사곤충학회지
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    • 제48권1호
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    • pp.28-31
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    • 2006
  • 효율적으로 누에똥을 수집할 수 있는 사육장치 및 수집기를 개발하기 위하여 본 연구를 수행하였다. 1. 사육장치 무게를 경량화하고 조립식 및 바퀴를 부착하여 급상 및 수집작업시 편리성을 제고하였다. 2. 누에자리망 크기별 수집량은 7.0*7.0 mm망 이용시 5.0*5.0 mm 대비 36% 많았으나, 떨어지는 누에가 5령 사육기간 동안 다소(0.3%) 있었다. 3. 누에 수거기를 이용한 수집노력은 수작업 대비 37%의 절감효과가 있었다. 4. 상자당 누에똥 수집량은 2단 사육시 19.7kg의 잠분이 수집되었다. 5. 노동투하시간(시간/상자)은 현행(손수집) 대비 개선(수집기)이 65%수준으로 35%의 노력절감이 있었고 노동생산성(kg/시간)은 55% 증가하였다. 6. 생산비에서도 현행 대비 개선이 35.9% 비용절감이 있었다. 7 누에수거 및 누에통수거시 흡입구 조절할 수 있도록 제작하였다.