• Journal of The Korean Society of Grassland and Forage Science
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• v.12 no.4
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• pp.246-252
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• 1992

In order to reduce the problems from overlapping between rye harvest and maize seeding dates, and also to improve the growth, productivity and nutritive value of rye (Secale cereale L.), an experiment was carried out to determine the variety effect of rye on the forage production system, and seeding date effect on the yield and quality of rye. The experiment was conducted in the forage testing field of S.N.U., Suweon, from September 1988 to May 1989. The dry matter and in vitro digestible dry matter yields of rye harvested 14 April were 5.2 t and 4.6 t/ha with an early maturing rye variety, Winter more, but 3.1 t and 2.8 t/ha were obtained with a late maturing rye variety, Kodiak. When seeding date was delayed, a significant decrease in dry matter yield was observed. ADF and NDF contents, and IVDMD of an early maturing rye, Winter more, harvested 14 April were 25.6, 44.8 and 81.9 %, but those of a late maturing rye, Kodiak, were 21.1, 39.5 and 88.9 %, respectively. ADF and NDF contents of rye were increased as the seeding date was delayed, but ail forage ryes from different seeding dates as well as varieties were recorded as the 1st grade proposed by market hay grades. The dry matter and in vitro digestible dry matter yields of rye harvested at 80 %heading stage were significantly decreased as delayed seeding date, but no significant differences were found between early and late maturing varieties. No differences in ADF and NDF contents, and IVDMD of the rye harvested at 80% heading stage were found among the treatments, but all forage ryes were evaluated as the 4 th grade proposed by market hay grades.

• ALGAE
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• v.29 no.1
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• pp.35-45
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• 2014

Palmaria palmata was integrated with Atlantic halibut Hippoglossus hippoglossus on a commercial farm for one year starting in November, with a temperature range of 0.4 to $19.1^{\circ}C$. The seaweed was grown in nine plastic mesh cages (each $1.25m^3$ volume) suspended in a concrete sump tank ($46m^3$) in each of three recirculating systems. Two tanks received effluent water from tanks stocked with halibut, and the third received ambient seawater serving as a control. Thalli were tumbled by continuous aeration, and held under a constant photoperiod of 16 : 8 (L : D). Palmaria stocking density was $2.95kg\;m^{-3}$ initially, increasing to $9.85kg\;m^{-3}$ after a year. Specific growth rate was highest from April to June (8.0 to $9.0^{\circ}C$), 1.1% $d^{-1}$ in the halibut effluent and 0.8% $d^{-1}$ in the control, but declined to zero or less than zero above $14^{\circ}C$. Total tissue nitrogen of Palmaria in effluent water was 4.2 to 4.4% DW from January to October, whereas tissue N in the control system declined to 3.0-3.6% DW from April to October. Tissue carbon was independent of seawater source at 39.9% DW. Estimated tank space required by Palmaria for 50% removal of the nitrogen excreted by 100 t of halibut during winter is about 29,000 to $38,000m^2$, ten times the area required for halibut culture. Fifty percent removal of carbon from the same system requires 7,200 to $9,800m^2$ cultivation area. Integration of P. palmata with Atlantic halibut is feasible below $10^{\circ}C$, but is impractical during summer months due to disintegration of thalli associated with reproductive maturation.

• The Korean Society of Law and Medicine
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• v.9 no.1
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• pp.259-284
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• 2008

Im sog. Kemptener-Fall aus dem Jahre 1994 in Deutschland hat der 1. Strafsenat des BGH die Bedeutung des Patientenwillens erstmals $f{\ddot{u}}r$ einen solchen Fall hervorgehoben, in dem die Krankheit noch keinen irreversibel $t{\ddot{o}}dlichen$ Verlauf genommen hat. Der 1. Senat des BGH entwickelt aus den $Pr{\ddot{a}}missen$, die er in drei $Leits{\ddot{a}}tzen$ $festh{\ddot{a}}lt$, $schl{\ddot{u}}ssig$ und im $gel{\ddot{a}}ufigen$ Modus der Dogmatik eine $Begr{\ddot{u}}ndung$, die gleichwohl den weitaus ${\ddot{u}}berwiegenden$ Teil der eigentlichen Probleme des Falles nicht einmal sichtbar genacht, geschweige denn einer $L{\ddot{o}}sung$ $n{\ddot{a}}hbar$ $br{\ddot{a}}chte$. Die $Leits{\ddot{a}}tze$ formulieren rechtliche Prinzipien, beziehen aber unvermeidlich zugleich und $selbstverst{\ddot{a}}ndlich$ Stellung zu einigen der schwierrigsten und $ungel{\ddot{o}}sten$ ethischen Fragen der modernen Medizin. Im sog. Kemptener-Fall brachte die $L{\ddot{o}}sung$ des Senat $f{\ddot{u}}r$ Mediziner, Ethiker und Juristen keine befriegende $L{\ddot{o}}sun$, sondern allein zahlose Zweifel und Unklarheiten. Denn dabei geht es nicht um moralisch $unerw{\ddot{u}}nschten$ Ergebnis der Rechtsanwendung im Einzelfall. Vielmehr hat die moderne Medizin $f{\ddot{u}}r$ den ${\ddot{a}}rztlichen$ Eintscheidungsbereich zwischen Leben und Tod einen Typus professionellen Alltagshandelns gebracht. Deshalb ist es eine Illusion, wollte man von der strafrechtlichen Dogmatik befriegende Resoltate erwarten. Trotzdem kann man nicht die dogmatische Untersuchung $aufh{\ddot{o}}ren$, weil eine Gesetzgebungslehre oder eine Strafrechtspolitik von den dogmatischen Probleme ausgehen muss. In diesem Hintegrund im Beitrag wurde dieser Fall durch kriti sche Auseinandersetzung strafrechtsdogmatisch zu begrunden versucht, Dabei wird die $Interessenabw{\ddot{a}}gung$ zwischen Lebens- und Sterbensinteressen als der $Rechtfertigungsbegr{\ddot{u}}ndung$ beim $t{\ddot{o}}dlichen$ Behandlungsabbruch vertreten.

• Journal of Korean Society on Water Environment
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• v.29 no.3
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• pp.354-364
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• 2013

The performance of the stormwater wetlands can be significantly influenced by antecedent stormwater in storage at the commencement of a stormevent. As inflows are intermittent and stochastic in nature, the evaluation of the treatment efficiency of a stormwater wetland should be considered by runoff capture and water treatment characteristics during interevent periods. In this study, analytical probabilistic model is applied to identity runoff capture rate and treatment efficiency of the stormwater wetland. To achieve this, continuous rainfall data recorded in Busan for 31 years has been analyzed to derive the runoff capture rate, and 1st order kinetic decay constants ($k_V$, 1/d) are calculated from regression analysis to identify pollutants removal during interevent periods. The results show that about 60.9% of annual average runoff is captured through the stormwater wetland. The annual average treatment efficiencies of SS, BOD, COD, TN and TP is about 11.4, 8.9, 9.8, 4.3 and 9.6%, respectively. The analytical model has been compared with the numerical model and it shows that analytical model is valid. Performance evaluation methods developed in this study has the advantages of considering characteristics of rainfall-runoff, facility type and pollutant removal.

• JSTS:Journal of Semiconductor Technology and Science
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• v.10 no.3
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• pp.240-250
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• 2010

Double Gate MOSFETs (DG MOSFETs) with doping in one or two thin layers of an otherwise intrinsic channel are simulated to obtain the transport characteristics, threshold voltage and leakage current. Two different device structures- one with doping on two layers near the top and bottom oxide layers and another with doping on a single layer at the centre- are simulated and the variation of device parameters with a change in doping concentration and doping layer thickness is studied. It is observed that an n-doped layer in the channel reduces the threshold voltage and increases the drive current, when compared with a device of undoped channel. The reduction in the threshold voltage and increase in the drain current are found to increase with the thickness and the level of doping of the layer. The leakage current is larger than that of an undoped channel, but less than that of a uniformly doped channel. For a channel with p-doped layer, the threshold voltage increases with the level of doping and the thickness of the layer, accompanied with a reduction in drain current. The devices with doped middle layers and doped gate layers show almost identical behavior, apart from the slight difference in the drive current. The doping level and the thickness of the layers can be used as a tool to adjust the threshold voltage of the device indicating the possibility of easy fabrication of ICs having FETs of different threshold voltages, and the rest of the channel, being intrinsic having high mobility, serves to maintain high drive current in comparison with a fully doped channel.

• Journal of the Korean Academy of Clinical Electrophysiology
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• v.5 no.2
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• pp.47-59
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• 2007

The purpose of this study were to investigate the effects of electroacupuncture(EA) on sensory nerve function in acute hyperglycemia rats. Male Sprague-Dawley rats weighing 250~270 g(8 weeks of age) were used in this study, and the induced hyperglycemia rats were produced by intraperitoneal injection of streptozotocin(70 mg/kg body weight). Only animals with blood glucose levels of 300 mg/dl or higher were used in this study. Animal were divided into two groups: the control group and EA group (n=7 in each group). For EA, two stainless-steel needles were inserted into Zusanli (ST36) which is located at the anterior tibial muscle and about 10mm below the knee joint. Pulsed current(2 Hz, 0.3 ms) were applied to the inserted needle for 20 mim. We measured glucose level, weigh, sensory nerve conduction and somatosensory evoked potential(5EP) before and after injecting streptozotocin, 2 weeks, 4 weeks. The change of blood glucose on EA group trended to decrease compared with the control group and there were significant differences(p<0.05). The body weight of the EA group trended to be reduced compared with the control group and there were significant differences(p<0.05). The amplitude of sensory nerve action potential on EA group to increase compared with the control group and there were significant differences(p<0.05). There were no significant differences in SEP. These results suggest that EA has beneficial effect on diabetic neuropathy and this effect may be related in part with prevention of hyperglycemia.

• Journal of Environmental Science International
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• v.18 no.6
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• pp.691-698
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• 2009

Trickling filter has been extensively studied for the domestic wastewater treatment especially for the small scale plants in rural area. The performance of the trickling filter depends on the microbial community and their activity in the biofilms on the media. Nitrification. denitrification, and phosphorus removal of the trickling filter from the wastewater depend on the activity and the amount of the specific microorganisms responsible for the metabolism. For the estimation of the performance of a trickling filter, batch nitrification experiment and fluorescence in situ hybridization (FISH) were carried out to measure the microbial activity and its distribution on the media of the trickling filter. Batch nitrification activity measurement showed that the top part of the 1st stage trickling filter had the highest nitrification activity and the maximum activity was 0.002 g $NH_4$-N/g MLVSS${\cdot}$h. It is thought that higher substrate (ammonia) concentration yields more nitrifying bacteria in the biofilms. The dominant ammonia oxidizer and nitrite oxidizer in the biofilm were Nitrosomonas species and genus Nitrospira, respectively, by FISH analysis. Less denitrifiers were found than nitrifiers in the biofilm by the probe Rrp1088 which specifically binds to Rhodobacter, Rhodovulum, Roseobacter, and Paracoccus. Phosphorus accumulating bacteria were mostly found at the surface of the biofilm by probe Rc988 and PAO651 which specifically binds to Rhodocyclus group and their biomass was less than that of nitrifiers.

• Journal of the Korean Society of School Health
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• v.33 no.1
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• pp.19-27
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• 2020

Purpose: This study is to confirm the effectiveness of the character education program applied to high school students. Methods: The study used a one-group pretest-posttest design with a sample of students aged 15 (n=263, male), the members of eleven 10th grade classes in a high school in Seoul, from March 1st, 2019 to February 28th, 2020. In order to confirm the effectiveness of the program, the Korean Educational Development Institute (KEDI) character questionnaire was used, and a paired t-test was performed using IBM SPSS statistics 25 statistical program. Results: In this study, character levels were significantly higher after the character education program than before. The pre-post differences in character levels were measured for Sincerity (t=5.63, p<.001), Self-respect (t=2.78, p=.011), Decorum (t=3.97, p<.001), Responsibility (t=5.35, p<.001), Consideration and communication (t=5.89, p<.001), Citizenship (t=5.28, p=p<.001), Self-regulation (t=6.25, p<.001), Justice (t=2.62, p=.011), Wisdom (t=5.75, p<.001), and Honesty and courage (t=7.11, p<.001). Conclusion: In this study, and were found to be significantly related to improvements in character.

• Journal of Chest Surgery
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• v.30 no.3
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• pp.348-348
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• 1997

A 48 year old man, has been suffering from a growing chondrosarcoma of sternum which has deeply invading the anterior mediastinum: He underwent wide resection of the chest wall tumor including a 4 cm free margin of normal tissue on all portions. The tumor as 15 × 16× 10cm in size arising from sternum and include both proximal one third of the clavicle and the 1 st, 2nd, and 3rd coital cartilages. The resected skeletal defect in the anterior wall was very large after wide resection of the'tumor and reconstructed due to paradoxical chest wall movement with sandwich like method of double over lapping Marlex mesh and methylmethacreylate, and steel wires. The soft tissue reconstructive procedure was dont with myocutaneous flap transposition use of pectoralis muscle. But the patient go infected with tuberculosis in the mediastinum two months after the operation. We had removed all of previously inserted prosthetics and performed curettage and drainage. Recently we experienced a case with giant chondrosarcoma of the sternum associated with tuberculous mediastinitis. The patient had an uneventful postoperative course and was discharged with adjuvant treatment such as antituberculous medication for 1 year.

• Journal of The Korean Society of Grassland and Forage Science
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• v.16 no.1
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• pp.47-52
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• 1996

To investigate the effects of phosphate($P_2O_5$) fertilization levels on the dry matter(DM) yield, nutrition yield, and $P_2O_5$ efficiency of forages in mixed sward of alfalfa-grasses, a field experiment arranged by randomized complete block design with five treatments(0, 50, 100, 150 and 200kg $P_2O_5$/ha) was conducted at Livestock Experiment Station in Suwon, September, 1990 to Feb~ary, 1993. During two years, average DM yields of forages increased as $P_2O_5$ fertilization level was increased, but no significant difference was found between DM 10,754kg of $P_2O_5$ 150kg/ha and DM 10,845kg of $P_2O_5$ 200kg/ha. Cmde protein and energy productivity of forages increased as $P_2O_5$ fertilization level was increased, and the increasing degree was highest between $P_2O_5$ l00kg and 150kg/ha feriilization. With increasing $P_2O_5$ fertilization, mineral contents tended to increase in P, K and WCa+ Mg equivalent ratio, but not to be regular in the other elements. Efficiency of $P_2O_5$ was highest at $P_2O_5$ 150kg/ha fertilization, which produced DM 12.8kg. net energy lactation 75.4MJ. starch equivalent 6.lkStE, and total digestible nutrients 8.6kg per Ikg $P_2O_5$.