• 제목/요약/키워드: gross

검색결과 3,051건 처리시간 0.025초

Assessment of natural radioactivity in soil and olive mill pomace utilizing nal (TI) gamma-ray spectrometry and low background alpha/beta counting system

  • Amani Kraishan;Mohammad Abu Shayeb;Hafedh Belmabrouk;Ahmad Ali Husein Qwasmeh;Muzahir Ali Baloch
    • Nuclear Engineering and Technology
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    • 제56권5호
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    • pp.1925-1931
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    • 2024
  • The study conducted in the northwest region of Jordan aimed to assess the levels of natural radioactivity in soil and olive mill pomace (OMP) samples. The researchers used Nal (TI) gamma-ray spectrometry to measure the activity concentrations of 226Ra, 232Th, 40K, and 137Cs in the samples. The average activity concentrations of 226Ra, 232Th, 40K, and 137Cs in the soil samples were found to be 18.624 ± 5.82, 12.276 ± 5.728, 518.33 ± 212.57, and 0.140 ± 0.09 (Bq, kg-1), respectively. In the OMP samples, the average activity concentrations of 226Ra, 232Th, and 40K were 7.272 ± 4.386, 3.454 ± 1.503, and 169.997 ± 81.873 (Bq kg-1), respectively, and no 137Cs was detected. The study also investigated fundamental parameters associated with radon, specifically the radon emanation coefficient (RnEC) and radon mass exhalation rate (Ex). The RnEC values ranged from 0.621 to 0.78 (Bq kg-1), with an average value of 0.71 ± 0.06 (Bq kg-1). The estimated Ex from the soil samples ranged from 65.83 to 124.86 (mBq kg-1h-1), with an average value of 99.74 ± 21.73 (mBq kg-1h-1). Regarding radiological hazards, the study examined various parameters, including radium equivalent activity, external and internal hazard indices, gamma and alpha indices, absorbed gamma dose rate, and excess lifetime cancer risk. All of these assessed values were found to be below the worldwide recommended limits for radiological safety. Additionally, the study analyzed the concentrations of gross alpha and gross beta radioactivities in soil and OMP samples. The soil samples had an average gross alpha activity of 4.642 ± 1.04 (Bq kg-1) and an average gross beta activity of 48.13 ± 14.50 (Bq kg-1). The OMP samples showed an average gross alpha activity of 0.32 ± 0.27 (Bq kg-1) and an average gross beta activity of 59.19 ± 12.94 (Bq kg-1). Overall, the obtained results are crucial for evaluating the radiological risks associated with natural radioactivity in the northwest region of Jordan. The findings establish baseline data for comparison and reference for radioactivity levels in the environment.

CAUCHY PROBLEMS FOR A PARTIAL DIFFERENTIAL EQUATION IN WHITE NOISE ANALYSIS

  • Chung, Dong-Myung;Ji, Un-Cig
    • 대한수학회지
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    • 제33권2호
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    • pp.309-318
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    • 1996
  • The Gross Laplacian $\Delta_G$ was introduced by Groww for a function defined on an abstract Wiener space (H,B) [1,7]. Suppose $\varphi$ is a twice H-differentiable function defined on B such that $\varphi"(x)$ is a trace class operator of H for every x \in B.in B.

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Studies On The Primary Production In Suyong Bay

  • Kang, Yong Joo
    • 한국해양학회지
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    • 제2권1_2호
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    • pp.13-23
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    • 1967
  • Seasonal changes in the primary production of surface water in Suyong Bay, Pusan, were measured using a light-dark bottle method. Gross photosynthesis followed a distinct seasonal change with highest levels in spring and fall. Respiration of plankton community showed its maximum only in the late summer and early fall. Net photosynthesis of plankton community is considerably variable throughout year, but followed a seasonal change similar to gross photosynthesis. Seasonal changes in temperature and salinity are related to the seasonal change in plankton metabolism.

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SHARP THRESHOLDS OF BOSE-EINSTEIN CONDENSATES WITH AN ANGULAR MOMENTUM ROTATIONAL TERM

  • Lu, Zhongxue;Liu, Zuhan
    • Journal of applied mathematics & informatics
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    • 제29권3_4호
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    • pp.901-908
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    • 2011
  • In this paper, we establish a sharp condition of global existence for the solution of the Gross-Pitaevskii equation with an angular momentum rotational term. This condition is related to the ground state solution of some steady-state nonlinear Schrodinger equation.

프로바디마사지가 뇌병변 장애우의 신체적 특성과 대동작 기능 및 관절 가동범위에 미치는 영향 : 사례연구 (Effects of the Probody Massage on the Physical Characteristics, Gross Motor Function and ROM in Youth with Cerebral Palsy : Case study)

  • 김의숙;양정옥;이중숙
    • 한국운동역학회지
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    • 제25권4호
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    • pp.453-463
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    • 2015
  • Objective : The purpose of this study was to investigate the effects of the Probody Massage Program on the physical characteristics, gross motor function and ROM (Range Of Motion) of children with cerebral palsy. Method : The subjects of this study were two children who have been diagnosed with first grade cerebral palsy that utilized T development support center located in B Metropolitan city for 8 weeks, twice a week, to carry out the Probody Massage Program for 30 minutes. Physiological reactions (height, weight, BMI, blood pressure (an index of inflammation), pulse rate) and large operating functions (sitting, crawling and the joints' range of motion as an angle of the shoulders' upper limb articulation) were measured pretest, after 4 weeks, and after 8 weeks. Results : The Probody Massage Program showed positive changes in physical characteristics (blood pressure, sitting, and crawling), gross motor function (upper limb shoulder movement), joint range of motion, height, body weight, metabolic activation and blood circulation of children with cerebral palsy. Conclusion : We believe making a practical impact on the growth and development, functional recovery of daily life, and improvement of quality of life of children with cerebral palsy by utilizing Probody Massage Program improves blood pressure (an index of inflammation), pulse, sitting, crawling, and the joints' range of motion as an angle of the shoulder joints' upper limb movement of children with cerebral palsy.

낙동감 하구 사구의 갈대, 천일사초 및 갯잔디군락의 생산능력 (Production Dynamics of Phragmites longivalvis, Carex scabrifolia and Zoysia sinica Stand of a Sand Bar at the Negdong River Estuary)

  • Kim, Joon-Ho;Kyung-Je Cho;Hyeong-Tae Mun;Byeong Mee Min
    • The Korean Journal of Ecology
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    • 제9권1호
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    • pp.59-71
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    • 1986
  • Net production, dead material increments were measured, and annual respiration loss was simulated through a year to determine the gross production at the Phragmites longivalvis, Carex scabrifolia and Zoysia sinica stand on Okryudeung, a sand bar of the Nagdong river estuary. The maximum live biomass for above-ground organs of the three stands occured in October, i.e., 1, 985, 744 and 1, 013g/m2, and belowground net productions were estimated to be 650, 440 and 412g/m2, respectively. Materials died or shedding from live aboveground organs during the growth season were estimated to be 167, 81 and 0 g/$m^2$. From the results of simulation, annual variation of respiratiion was primarily dependent on the annual variation of temperature through a year. For annual respiration loss in three stands, 21.893, 6.147 and 5.036kg $CO_2/m^2$ were calculated, respectively. Corresponding gross productions were 72, 203, 22, 109 and 19, 909kcal/$m^2$. Respiration of belowground organs corresponded to 65%, 66% and 37% of the total plant respiration, and annual respiration loss accounted for 85%, 78% and 71% of the annual gross production. In view of efficiency of solar energy utilization, 5.8%, 1.8% and 1.6% of incident light energy were converted to gross production of plants during a year. With incident light energy during the growth season from April to September, energy utilizations for net production were estimated to be 1.2%, 0.4% and 0.6% at the three stands.

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Correlation Between the Activities of Daily Living Assessment and Gross Motor Function Measures in Children with Spastic Cerebral Palsy

  • You, Hee-Joo;Park, Sun-Wook;Lee, Han-Suk
    • The Journal of Korean Physical Therapy
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    • 제27권6호
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    • pp.425-429
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    • 2015
  • Purpose: This study was to identify the whether there is any correlation between Gross Motor Function Measures (GMFM) and Functional independence Measurement for children (WeeFIM) in order to identify a relevance of daily life motor with gross motor function of children with cerebral palsy. Methods: Subjects were instructed to evaluated by an occupational therapist using WeeFIM (reliability 0.83-0.99) and by a physical therapist using GMFM (reliability 0.93). 10 male children and 13 female children among 23 children being diagnosed as cerebral palsy were targeted for this study. A correlation between GMFM and WeeFIM was analyzed with Kendall correlation. Results: Participants showed significant correlation between GMFM and WeeFIM in all categories, except in the GMFM's walking running jumping category, standing category of GMFM and self care, sphincter control, communication category of WeeFIM. Lying rolling and sitting and crawling kneeling area of GMFM showed a significant correlation with self care(r=0.35, 0.39, 0.4), sphincter control (r=0.45, 0.43, 0.61), mobility transfer (r=0.44, 0.36, 0.64), locomotion (r=0.41, 0.35, 0.74), communication (r=0.4, 0.44, 0.51), and social cognition (r=0.43, 0.51, 0.64) area of WeeFIM (p<0.05). Standing of GMFM and mobility transfer (r=0.74), locomotion (r=0.47) and social cognition (r=0.4) area of WeeFIM showed a significant correlation (p<0.05). Conclusion: These findings indicated significant correlation between activity of daily living (ADL) and gross motor function of children with cerebral palsy. However, because there are a few results that are not significant, both assessment tools should be used for evaluations so that treatment can be achieved with an accurate assessment and establish a therapeutic plan.

먹이에 따른 물가자미 (Eopsetta grigorjewi) 치어의 에너지 수지 (Energy Budget of Snotted Halibut Juvenile, Eopsetta griorjewi with Two Different Prey Items)

  • 이선식;한경남;윤원득
    • 한국수산과학회지
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    • 제36권4호
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    • pp.358-364
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    • 2003
  • Gross energy intake fecal, nitrogen excretory and metabolized energy of snotted halibut juvenile, Eopsetta grigorjewi, fed on Tigriopus iaponicus (Group A) and the enriched Artemia nauplii (Group B), were quantitatively investigated and represented as balance equations of energy and material. Absorption efficiency (AE), gross conversion efficiency $(K_1)$ and net conversion efnciency $(K_2)$ were also estimated to understand the changes in efficiency by the prey Gross energy intake, fecal, nitrogen excretory, metabolized and growth energy of Group A were $2.790\pm0.247,\;0.495\pm0.046,\;0.018\pm0.003,\;0.214\pm0.047\;cal\;mg^{-1}\;day^{-1}$ and $2.063\;cal\;mg^{-1}\;day^{-1},$ respectively. The same parameters of Group B were $4.801\pm0.165,\;0.579\pm0.031,\;0.055\pm0.010,\;0.306\pm0.048\;cal\;mg^{-1}\;day^{-1}$ and $3.861\;cal\;mg^{-1}\;day^{-1},$ respectively. Energy budget of Group A and B were represented as 100 C= 7.67 M+17.7 F+0.65 U+73.94 G and 100C=6.37 M+ 12.1 F+1.15 U+80.42 G, respectively, where C, M, F, U, and G represent gross energy intake, metabolized energy, fecal energy, nitrogen excretory (non-fecal) energy and growth energy, respectively. AEs of Croup A and B were $81.52\pm1.89,\;86.79\pm0.70\%,$ respectively, with significant difference at p=0.01 level. However, $K_1\;and K_2$ of Group A and B showed no significant difference at p=0.01 level, with $74.21\pm6.57,\;80.48\pm2.76\%\;and\;91.17\pm7.26,\;92.74\pm2.69\%$ respectively. These results suggest that T. japonicus is a possible substitute for Artemia nauplii for the snotted halibut juvenile.

뇌성마비 아동의 일상생활동작에 영향을 미치는 요인에 관한 구조방정식 모형 검증 (Structural Equation Modeling of Factors Contributing to Activities of Daily Living in Children With Cerebral Palsy)

  • 박은영
    • 한국콘텐츠학회논문지
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    • 제9권10호
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    • pp.206-217
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    • 2009
  • 이 연구는 뇌성마비 아동의 운동손상, 손기능, 대동작 기능과 일상생활동작 수행능력 간의 인과관계를 구조방정식 모형 검증을 통해 알아보기 위해 실시되었다. 이를 위해 만 6~12세 뇌성마비 아동 105명을 대상으로 근긴장도, 근력, 관절가동범위, 선택적 운동조절 능력, 손기능, 대동작 기능, 일상생활동작 수행능력 평가를 실시하였다. 이 연구의 결과는 다음과 같았다: 첫째, 운동손상 변인 중 근긴장도, 근력, 선택적 운동조절 능력은 일상생활동작 수행능력의 하위 영역과 상관이 유의한 것으로 나타났다(p < .05); 둘째, 대동작 기능과 손기능은 일상생활동작 하위 영역과 유의한 상관이 있는 것으로 나타났다(p < .05); 셋째, 뇌성마비 아동의 운동손상, 손기능, 대동작 기능과 일상생활동작 수행능력과의 관계를 알아보기 위해 구조방정식 모형 검증을 실시한 결과, 이 연구의 모형은 적합도가 양호한 것으로 나타났다. 이 연구는 뇌성마비 아동의 운동손상, 손기능, 대동작 기능과 일상생활동작 수행능력 간의 관계를 구조방정식 모형 검증을 통해 규명하였다는데 의의가 있다.

항혈청 투여에 의한 돼지 전염성 위장염의 예방효과 II.임상검사, 병리조직학적 검사, 면역조직화학적 검사 (Preventive Effects on Transmissible Gastroenteritis Using by TGEV Antiserum II. Clinical Sign, Histopathological and Immunohistochemical Findings)

  • 지영철;한정희;권혁무;정현규
    • 한국수의병리학회지
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    • 제7권1호
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    • pp.43-54
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    • 2003
  • The purpose of this study was to investigate protective effects against transmissible gastroenteritis virus (TGEV) infection in piglets by administration of the TGEV antiserum orally at 2hrs, 24hrs and 36hrs after birth. Five piglets administered with the TGEV antiserum were experimentally challenged with TGEV at four-day-old. Control group was four piglets challenged with TGEV only. Clinical signs and gross, histopathological and immunohistochemical findings were examined. In clinical signs, piglets of the control group appeared the typical signs such as severe watery diarrhea, depression and anorexia but piglets of the TGEV antiserum adminstered group recovered progressively. In clinical signs, piglets of the control group appeared the typical signs such as severe watery diarrhea, depression and anorexia but piglets of the TGEV antiserum adminstered group recovered progressively. In mortality, control group showed 75%, but TGEV antiserum adminstered group showed 20.0 %, respectively. In gross findings, piglets of the control group appeared the typical findings of congestion, distension of lumen, contaning curdes of undigested milk in stomach. But gross findings of piglets of the TGEV antiserum adminstered group appeared milder than them of control group. In histopathological findings, piglets of the control group appeared the typical findings of villous atrophy and fusion, congesion, exfoliation, vacuolation, squamation, loss of cilia and proliferation of crypt. But histopathological findings of piglets of the TGEV antiserum adminstered group appeared milder than them of control group. In immunohistochemical findings, piglets of the TGEV antiserum adminstered group showed more intensive in reaction for IgA and IgG than them of control group. The recation for IgA was stronger than that of IgG. It was concluded that oral administration of TGEV antiserum to piglets was effective to prevent TGEV infection and reduce their mortality.

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