• 한국지구물리탐사학회:학술대회논문집
• /
• 2003.11a
• /
• pp.416-421
• /
• 2003

To develop an easy, low-cost method for evaluating the degree of weathering by radioactive prospecting, radioactive prospecting and the investigation of the degree of weathering were carried out in the southern Kitakami massif of Iwate Prefecture, Japan, in which weathering granitic rocks was distributed. Fifty outcrops in the study area were selected, and strength of the gamma-rays emitted from the weathering bedrock of $^{40}K,\;^{214}Bi,\;and\;^{208}Tl$ was measured for 15 minutes at each point. At the same points, soil hardness was measured on the surface of the outcrop with a Yamanaka soil penetration tester. In addition, 100cc samples of each outcrop were taken with the sampler. The samples were analyzed by XRD, and the kind of the rock-forming minerals containing K was identified. We then compared the degree of weathering and the radioactive prospecting results by using K as an indicator. The relation between $^{40}K/^{208}Tl$ gamma rays counting rate by the radioactive prospecting and the hardness index showed a positive correlation as a result of the investigation, and the correlation coefficient ($R^2$) was 0.67.Moreover, when $^{40}K/^{208}Tl$ gamma rays counting rate emitted from the bedrock was low, the number of rock-forming mineral species containing K was also low. Thus, it was found that $^{40}K/^{208}Tl$ gamma rays counting rate measured by the radioactive prospecting could be used as an indicator of the degree of weathering.

• Explosives and Blasting
• /
• v.24 no.1
• /
• pp.21-28
• /
• 2006

Rock mass classification systems such as RMR and Q system have been widely served as a simple empirical approach for the design of various rock mass structures in the stage of site survey as well as under the construction. For the RQD determination, the boring is partially carried out and what is more, the survey boring is not normally carried out under construction. Therefore RQD is frequently determined by empirical method or indirect method. Since it is difficult to determine the discontinuity characteristics such as RQD, spacing, persistence, filling and so on, it is essential to develop suitable and simple systems without drilled core and a cert 없 n number of representative parameters. One of the primary objectives of the classification systems for a practicing engineer has been to make it simple to use as a preliminary design tool for the structures in rock mass. In the present study, the modifications for both the RMR and GSI system are suggested by authors to introduce new classification system as well as to improve the scope of some of the existing classification systems for a practicing engineer.

• The Journal of Korean Physical Therapy
• /
• v.25 no.4
• /
• pp.204-209
• /
• 2013

Purpose: Children with cerebral palsy generally have a high incidence of respiratory problem, resulted from poor coughing, airway clearance problem, respiratory muscle weakness, kyphoscoliosis and so forth. The purpose of this study is to investigate the possible factors that can be affected to forced vital capacity (FVC) in children with cerebral palsy. Methods: Total thirty six children with diplegic and hemiplegic cerebral palsy were recruited in this study. They were evaluated by general demographic data (i.e., age, gender, body mass index (BMI)) and variables related to respiratory functions (i.e., chest mobility, waist mobility, maximal phonation time, and maximum inspiratory/expiratory pressure (MIP/MEP)). The correlation between forced vital capacity and the rested variables were analyzed, and multiple regression with stepwise method was conducted to predict respiratory function, in terms of FVC as the dependent variable, and demographic and other respiratory variables as the independent variable. Results: FVC showed a significant correlation with waist mobility (r=0.59, p<0.01), maximal phonation time (r=0.48, p<0.05), MIP (r=0.73, p<0.01), and MEP (r=0.60, p<0.01). In addition, the multiple regression analysis model indicated that FVC could be predicted by the assessment of each waist mobility and MIP. Conclusion: These finding suggest that respiratory function is related to body size and respiratory muscle strength, and that BMI, waist mobility, and MIP can be predictable factors to affected respiratory function in term of FVC.

• Journal of the Korean Society for Nondestructive Testing
• /
• v.22 no.5
• /
• pp.516-522
• /
• 2002

For the experimental study of rotor steel, seven kind of specimens with different degradation levels were prepared by isothermal heat treatment at $630^{\circ}C$. Spherical indentation technique was developed to evaluate the flow properties of metallic materials in carbon steel, stainless steel, and alloys, etc. Through the spherical indentation test, differently degraded 1Cr-1Mo-0.25V steel's mechanical properties were observed and compared with conventional standard test data. The flow properties of 1Cr-1Mo-0.25V steel's were estimated by analyzing the indentation load-depth curve. To characterize the flow property, we used material yield slope and constraint factor index rather than strain-hardening exponent because the variation of strain-hardening exponent was very little and the data showed irregularly. And the constraint factor's effect was small when the material yield slope was taken into account.

• Toxicological Research
• /
• v.24 no.3
• /
• pp.183-188
• /
• 2008

The behavioral phenotypes of out-bred ICR mice were compared with those of in-bred C57BL/6 and BALB/c mice. In particular, this study examined the locomotor activity and two forms of hippocampus-dependent learning paradigms, passive avoidance and object recognition memory. The basal open-field activity of the ICR strain was greater than that of the C57BL/6 and BALB/c strains. In the passive avoidance task, all the mice showed a significant increase in the cross-over latency when tested 24 hours after training. The strength of memory retention in the ICR mice was relatively weak and measurable, as indicated by the shorter cross-over latency than the C57BL/6 and BALB/c mice. In the object recognition memory test, all strains had a significant preference for the novel object during testing. The index for the preference of a novel object was lower for the ICR and BALB/c mice. Nevertheless, the variance and the standard deviation in these strains were comparable. Overall, these results confirm the strain differences on locomotor activity and hippocampus-dependent learning and memory in mice.

• Journal of the Korean Society of Tobacco Science
• /
• v.14 no.2
• /
• pp.159-167
• /
• 1992

It would be clear that the constituents of the leaf surface lipid is ye비 important as an evaluation index of tobacco leaf quality since the quality of tobacco specific aroma with leaf species depends on the contents of the lipid and the strength of the aroma is determined by the amounts of the lipid secreted. For the reason, a rapid and peproducible method to quantify DVT, which is a kind of lipid, has been studied. The biosynthesis procedure of DVT in leaf growing processes, and the volatile or decompositional characters of DVT in leaf drying processes were also discussed. In consequence, it might be possible to get the data available to the cultivation of better tobacco leaf and the manufacture of cigarettes with better aroma and taste. The results obtained from this study are as follows. 1. Chloroform/dichloromethane solvent was better than chloroform alone for DVT extraction. The extraction yields of the leaf surface lipid were about 5% 2. The extractives with dichloromethane were treated by silylation with BSTPa and the quantitative analysis of DVT was carried out using SE -54 fused silica capillary column. It was found that rapid and reproducible data could be obtained from these methods. 3. In flue - cured tobacco species, DVT contents were $30.3\mu\textrm{g}/cm^2$ in the beginning stage of leaf drying processes and $12.1\mu\textrm{g}/cm^2$ corresponded to 30% levels of the beginning stage, in the end stage. 4. DVT contents in Burley mere 2 times as large as those in fluecured tobacco. DVT in the upper stalk position of leaf was 3 times larger than that in the lower stalk position. 5. DVT of tobacco leaves was decomposed by $SO_2$ gas or the sun light. The decomposition rate was largest in the sample used methanol as a extraction solvent.

• Journal of Korean Society on Water Environment
• /
• v.21 no.4
• /
• pp.368-378
• /
• 2005

Inorganic matters originated from stone quarries and manufacturing plants could alter the ecological characteristics of adjacent aquatic systems, especially the structure and function of benthic macroinvertebrate community. In such situation, the locality of stone quarry and the quantity of inorganic matters would be important factors that determined the disturbing strength to the benthic macroinvertebrate community. Locality patterns of stone quarries were classified into 3 types in relation to the stream ecosystem; stream-proximity, upstream-inclusion and tributary-inclusion type. In the result of species:abundance analysis, stone quarry B (upstream-inclusion type) showed geometric distribution, while others showed broken-stick distribution pattern. The benthic macroinvertebrate communities closer to stone quarries showed smaller species numbers and standing crops among all types of stone quarries. However the values of species evenness index were not seriously different between controls and directly affected sites. These results indicated that the effect of inorganic disturbance would differ from those of organic pollution that induced the highly dominant state occupied by tolerant species. Number of occurred species, standing crops, community indices and biotic indices indicated that the community of upstream-inclusion type was the most seriously damaged from the inorganic disturbance, and the community would be very simple and unstable. Tributary-inclusion stone quarry heavily damaged to tributary system in biologically, but influence to the main stream seemed to be depended on the scale of main stream. Among 3 types of stone quarry localities, stream-proximity type induced the least damages to benthic macroinvertebrate community, though the degrees of damage were different along with distances between stream and stone quarry.

• Korean journal of food and cookery science
• /
• v.32 no.1
• /
• pp.123-135
• /
• 2016

The purpose of this study was to evaluate the effectiveness of an intervention program using dietary consult and physical exercise conducted by public health center in Chuncheon city for obese adults. This study used a pretest-posttest design. The subjects were 58 out of 90 obese adults with body mass index (BMI) greater than $25kg/m^2$ who completed all education sessions for 8 weeks. Data on dietary habits, dietary behaviors, nutritional knowledge, anthropometric parameters and biochemical indices and daily nutrient intakes assessed by a 24-hour recall were collected before and after the intervention program., in order to evaluate program effectiveness. After the intervention, there were positive changes in exercise status and dietary habits and nutrition knowledge accuracy. Especially, the answer of 'I drink a cup of milk every day' were significantly improved (p<0.001), and the answer of 'I don't overeat', which is a dietary attitude question was significantly improved (p<0.05). Dietary intakes of most of nutrients were not significantly different between pre-test and post-test. But calcium (p<0.05), potassium (p<0.05), vitamin A (p<0.01), vitamin E (p<0.05), and folic acid (p<0.05) were significantly increased in the female group after the intervention. Weight (p<0.05), BMI (p<0.01), blood pressure (p<0.001), were significantly decreased after program, but changes of skeletal muscle mass, body fat mass were not significant. Resting heart rate (p<0.01), flexibility (p<0.001), whole body reaction (p<0.05), grip strength (p<0.01) and balance (p<0.01) showed positive changes after the intervention. Blood glucose level in serum was significantly decreased (p<0.001). These results indicated that dietary education and exercise program was effective not only for weight reduction but also for the improvement of physical fitness in obese adults.

• Korean Journal of Health Education and Promotion
• /
• v.27 no.4
• /
• pp.105-112
• /
• 2010

Objectives: The purpose of this study was to know different effect with uncontrolled hypertension patients after providing health promotion program which consisted with medicine, exercise, nutrition. Methods: The subjects of this study was comprised by uncontrolled hypertension patients in spite of medication and didn't care the pressure by medication. The health promotion program was progressed by group exercise three times a week, nutrition education once a week and medical consultation once a month for 12 weeks. Subjects were measured for body composition(weight, fat mass, % body fat and body mass index), hemo-dynamics(systolic blood pressure(SBP), diastolic blood pressure(DBP), and resting heart rate), and physical fitness (cardiopulmonary endurance, muscular strength, muscular endurance, balance, and flexibility). Results: Groups showed significant improvement in every measure except resting heart rate. SBP is decreased both taking drug group about 18.4mmHg and without taking drug group about 19.4mmHg.(p<0.001) DBP is decreased both taking drug group about 8.7mmHg and without taking drug group about 9.0 mmHg.(p<0.001) Conclusion: There are no statistical significant differences of SBP and DBP decreasing effects by medication, Since effects of decreasing pressure are not different by medication, I think the health promotion program is effective to uncontrolled hypertension patients to decrease pressure.

• Preventive Nutrition and Food Science
• /
• v.13 no.4
• /
• pp.286-291
• /
• 2008

The objective of this study was to investigate the effects of a nutritional education and physical exercise program on obese children (47 boys and 36 girls). The nutritional education and physical exercise program was provided for 6 weeks and dietary habits, nutrient intake and hematological profiles were measured before and after the program. The BMI (body mass index, $kg/m^2$) in male children was significantly reduced to $24.58{\pm}2.81$ from $25.89{\pm}3.27$ (p<0.01) and it was significantly reduced to $24.29{\pm}3.51$ from $25.21{\pm}3.59$ in female children after the completion of nutritional education and exercise program. Body fat in male children was remarkably reduced to $32.69{\pm}7.74%$ after education from $37.38{\pm}9.21%$ (p<0.001). After the program total cholesterol concentration in male children was reduced to $176.48{\pm}29.10\;mg/dL$ from $196.03{\pm}29.10\;mg/dL$, whereas there was no significant difference in females before and after the nutritional education and exercise program. The grasping power of male children (p<0.05) and backmuscle strength of male (p<0.05) and female children (p<0.001) were significantly increased after the exercise program. The nutrient intakes that were different before and after the nutrition education were calories (p<0.05) and carbohydrate (p<0.05) in male children, and a significant increase in intake of vitamin A (p<0.05) was found in female children. There was a significant difference in meal time regularity before and after program. The findings of this study showed that there was a significant decrease in both body fat and weight, in addition to normalization of hematological profiles after the completion of nutrition education and physical exercise programs.