• Title/Summary/Keyword: Balance test

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Research and Development of a 2.9 Liter Light-duty DME Truck Using Common Rail Fuel Injection Systems (커먼레일 연료분사 시스템을 장착한 2.9 리터급 경량 DME 트럭의 연구 및 개발)

  • Jeong, Soo-Jin;Park, Jung-Kwon;Oh, Se-Doo;Lee, Gee-Soo;Lim, Ock-Taek;Pyo, Young-Dug
    • Transactions of the Korean Society of Automotive Engineers
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    • v.20 no.6
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    • pp.107-116
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    • 2012
  • In this study, the trucks(2.9-liter) have been developed to use DME as fuel, and performance test of the vehicle's DME engine, power, emissions, fuel economy and vehicle aspects was conducted. For experiments, the fuel system(common-rail injectors and high-pressure pump included) and the engine control logic was developed, and ECU mapping was performed. As a result, the rail pressure from 40MPa to approximately 65% increase compared to the base injector has been confirmed that. Also, the pump discharge flow is 15.5 kg/h when the fuel rail pressure is 400rpm(40MPa), and the pump discharge flow is 92.1 kg/h when the fuel rail pressure is 2,000rpm(40MPa). The maximum value of full-load torque capability is 25.5 kgfm(based on 2,000 rpm), and more than 90% compared to the level of the diesel engine were obtained. The DME vehicle was developed in this study, 120 km/h can drive to the stable, and calculated in accordance with the carbon-balance method of fuel consumptions is 5.7 km/L.

A Case Report of a Patient with Wernicke's Encephalopathy Complaining of Quadriplegia, Ataxia, and Impaired Cognition Improved by Korean Medicine Treatment (한의치료로 호전되었던 사지마비, 운동실조, 인지저하를 호소하는 베르니케 뇌병증 환자 증례보고 1례)

  • Shim, Sang-song;Lee, Hyun-seung;Ahn, Jae-yoon;Chae, Han-nah;Yun, Jong-min;Moon, Byung-soon
    • The Journal of Internal Korean Medicine
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    • v.41 no.5
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    • pp.777-786
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    • 2020
  • Background: This study is a report on a case of a Wernicke's encephalopathy with quadriplegia, ataxia, and impaired cognition, whose condition was improved by Korean medicine treatment. Case report: A 51-year-old man diagnosed with Wernicke's encephalopathy was treated with acupuncture, Banhabakchulchunma-tang mixed with Ondam-tang-gami (半夏白朮天麻湯合溫膽湯加味), cupping, moxibustion, and rehabilitation. Clinical symptoms were measured with the Manual Muscle Test (MMT), Berg Balance Scale (BBS), Korean Mini Mental Status Exam (K-MMSE), Functional Independence Measure (FIM), Modified Barthel Index (MBI), and a numeric rating scale (NRS). After 22 days of treatment, his clinical symptoms showed improvement. The motor function improved (MMT Rt. side Gr. 4+G/4+G, Lt. side Gr. 4G/4+G → Rt. side Gr. 5-N/4+G, Lt. side Gr. 5-N/4+G), Ataxia was relieved (BBS 3→33), cognition improved (K-MMSE 15→27), ADL scores showed improvement (FIM 58→90, MBI 40→75), and the NRS score decreased for headache (3→0). Conclusion: Korean medicine treatment could be effective in the treatment of patients with Wernicke's encephalopathy.

The Influence of Position Change on Autonomic Nervous System Function (자세변화가 자율신경계에 미치는 영향)

  • Kim, In-Bae;Kim, Eun-Kyung;Kang, Jong-Ho
    • Journal of the Korean Society of Physical Medicine
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    • v.9 no.1
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    • pp.63-68
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    • 2014
  • PURPOSE: The purpose of this study was to examine the position changes with tilt table on autonomic nervous system using heart rate variability analysis. METHODS: Fourty healthy adult males volunteered in this study. The low frequency, high frequency and low frequency/high frequency ratio and mean heart rate, standard deviation of all normal R-R intervals, root mean square of successive differences, heart rate variability index were measured at the tilt table angle of $0^{\circ}$, $45^{\circ}$ and $90^{\circ}$ with pulsoximeter. Data were analyzed one-way ANOVA and LSD post hoc test. RESULTS: The mean heart rate, low frequency and low frequency/high frequency ratio increased significantly at higher angle of tilt table(p<.05). The root mean square of successive differences, heart rate variability index decreased significantly at lower angle of tilt table(p<.05). The standard deviation of all normal R-R intervals, high frequency decreased at higher angle of tilt table did not show significant difference. CONCLUSION: The symphathetic activity increased significantly at higher angle of tilt table. The parasymphathetic activity decreased at higher angle of tilt table, but the difference were not significant. The autonomic adaptation, balance and heart rate variability decreased significantly at higher angle of tilt table. Based on these results, in the treatment of patients with a change in posture precedence should be carefully treated. Further studies are necessary to determine the most safety and effective methods.

Short-term Glycemic Control and the Related Factors in Association with Compliance in Diabetic Patients (당뇨병 환자의 치료순응도에 따른 단기간 혈당조절정도와 관련 요인)

  • Kim, Gui-Young;Kim, Bo-Wan;Park, Jae-Yong
    • Journal of Preventive Medicine and Public Health
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    • v.33 no.3
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    • pp.349-363
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    • 2000
  • Objectives : Generally, it seemed that the therapeutic result in diabetic patients was changed by compliance. This study was conducted on the basis of assumption that the therapeutic result id diabetic patients could control according to compliance. This study was conducted to analyze the related factors in association with compliance to drug, diet and exercise therapy. Methods : 224 diabetic patients in Kyungpook National University Hospital were selected through the interviews and HbA1c values from 1 Jan. to 28 Feb.1997. The drug compliance was tested by regularity of drug administration, the diet compliance was tested by restriction of food, exactly allocation, balance of nutrient, measuring food and the exercise compliance was tested by regularity of exercise per day. We assessed compliance by percentage, $x^2-test$ and generalized logit regression model(method:enter). Results : The significant variable was the satisfaction to medical personnels in drug, the knowledge to disease in diet, the participation of the diabetic education in exercise therapy and the satisfaction to medical personnels in HbA1c. Using the generalized logit model(method : enter) in compliance change, the significant variables were the satisfaction to medical personnels and the complication in drug; the significant variables were the age at the first diagnosis, the family history, the concern of health, the knowledge of disease, the self-exertion for therapy and the complication in diet: the only significant variable was the gender in exercise therapy. Conclusions : The degree of glycemic control in diabetic patients was influenced by compliance. In order to improve patient's compliance, we must foster the knowledge on the diseases, lead participation for diabetic education. Because the satisfaction to medical personnels was the important variables, we must build up good relationship between doctors and patients.

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Analysis of Household Overdue Loans by Using a Two-stage Generalized Linear Model (이단계 일반화 선형모형을 이용한 은행 고객의 연체성향 분석)

  • Oh, Man-Suk;Oh, Hyeon-Tak;Lee, Young-Mi
    • The Korean Journal of Applied Statistics
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    • v.19 no.3
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    • pp.407-419
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    • 2006
  • In this paper, we analyze household overdue loans in Korea which has been causing serious social and economical problems. We consider customers of Bank A in Korea and focus on overdue cash services which have been snowballing in the past few years. From analysis of overdue loans, one can predict possible delays for current customers as well as build a credit evaluation and risk management system for future customers. As a statistical analytical tool, we propose a two-stage Generalized Linear regression Model (GLM) which assumes a logistic model for presence/non-presence of overdue and a gamma model for the amount of overdue in the case of overdue. We perform goodness of fit test for the two-stage model and select significant explanatory variables in each stage of the model. It turns out that age, the amount of credit loans from other financial companies, the amount of cash service from other companies, debit balance, the average amount of cash service, and net profit are important explanatory variables relevant to overdue credit card cash service in Korea.

Cell Biological Studies of the Effect of Aromatic Amino Acids on Early Development of Chick Embryo (방향족 아미노산이 초기계배에 미치는 영향에 관한 세포생물학적 연구)

  • 최임순;주충노;최춘근;김재원
    • The Korean Journal of Zoology
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    • v.28 no.4
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    • pp.257-278
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    • 1985
  • The effect of aromatic amino acids such as phenylalaine, tryptophan and tyrosine on somitogenesis at the early stage of chick embryo has been investigated morphologically using light and electron microscopy. Micrographs of aromatic amino acid injected chick embryo showed that an incomplete somite segmentation occurred and some decremental effect on the nervous system were observed. Somites were poorly developed and their size were variable. Electron micrograph of somatic cells from aromatic amino acid injected chick embryo showed that chromatins were coagulated, some of mitochondria were damaged, and nucleus were transformed considerably in some cases. The protein and nucleic acid levels and some enzyme activities of 15-day chick embryo which received the injection of 1mg of aromatic amino acid in 0.05 ml of saline 24 hours after the incubation were analyzed. Protein, DNA and RNA levels of the test group were not lowered significantly but the activities of enzymes for basic metabolism, such as lactate dehydrogenase, succinate dehydrogenase, malate dehydrogenase and glucose 6-phosphate dehydrogenase were considerably lowered as compared with those of control. From the present expeerimental results, it was tentatively suggested that the administration of amino acid might slow down the yolk granule degradation probably by feed back mechanism resulting in the disturbance of amino acid balance in the cell, which might give rise to impair normal metabolic pattern leading to abnormal somitogenesis to chick embryo at very early stage of development.

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A STUDY ON THE FRACTURE OF DENTAL AMALGAM (치과용 아말감의 파절에 관한 연구)

  • Huh, Hyeon-Do;Um, Chung-Moon
    • Restorative Dentistry and Endodontics
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    • v.9 no.1
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    • pp.101-106
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    • 1983
  • It was the purpose of this study to investigate the fracture mode of dental amalgam by observing the crack propagation, and to relate this to the microstructure of the amalgam. Caulk 20th Century Regular, Caulk Spherical, Dispersalloy, and Tytin amalgam alloys were used for this study. After each amalgam alloy and Hg measured exactly by the balance was triturated by the mechanical amalgamator (Capmaster, S.S. White), the triturated mass was inserted into the cylindrical metal mold which was 4 mm in diameter and 12 mm in height and was pressed by the Instron Universal Testing Machine at the speed of 1mm/min with 120Kg. The specimen removed from the mold was stored in the room temperature for a week. This specimen was polished with the emery papers from #100 to #200 and finally on the polishing cloth with 0.06${\mu}Al_2O_3$ powder suspended in water. The specimen was placed on the Instron testing machine in the method similar to the diametral tensile test and loaded at the crosshead speed of 0.05mm/min. The load was stopped short of fracture. The cracks on the polished surface of specimen was examined with scanning electron microscope (JSM-35) and analyzed by EPMA (Electron probe microanalyzer). The following results were obtained. 1. In low copper lathe-cut amalgam, the crack went through the voids and ${\gamma}_2$ phase, through the ${\gamma}_1$ phase around the ${\gamma}$ particles. 2. In low copper spherical amalgam, it was observed that the crack passed through the ${\gamma}_2$ and ${\gamma}_1$ phase, and through the boundary between the ${\gamma}_1$ and ${\gamma}$ phase. 3. In high copper dispersant (Dispersalloy) amalgam, the crack was found to propagate at the interface between the ${\gamma}_1$ matrix and reaction ring around the dispersant (Ag-Cu) particles, and to pass through the Ag-Sn particles. 4. In high copper single composition (Tytin) amalgam, the crack went through the ${\gamma}_1$ matrix between ${\eta}$ crystals, and through the unreacted alloy particle (core).

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Design of 4-Way Wilkinson Divider with Waveguide to Stripline Transition Used in The Monopulse Radar Front-end (도파관 천이 구조를 갖는 모노펄스 레이더용 4-Way 윌킨슨 분배기 설계)

  • Koh, Young-Mok;Ra, Keuk-Hwan
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.47 no.11
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    • pp.69-76
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    • 2010
  • From the present paper we researched about the design of 4-Way Wilkinson divider with waveguide to stripline transition which used to split the LO signal with equi-amplitude and equi-phase in the X-Band Monopulse radar RF front-end. The monopulse radar front end operating in the X-Band is composed of 3 waveguide reception mixers which down convert sum, azimuth and elevation signal to IF and one SSB waveguide mixers which generate X-Band test signal. It is required the 4-way divider with low loss, equi amplitude and equiphase splitting the LO signal to provide the LO signal to each mixer consisting RF frontend. In this paper we designed and fabricated the 4-Way Wilkinson divider with waveguide transition to divide the LO signal into equi-amplitude and equi-phase. The fabricated Wilkinson divider have the insertion loss 6.8dB, VSWR 1.06~1.28, and phase balance maximum 4.5degree for each output ports.

A Study of Grand Sauces (그랜드 소스에 관한 연구)

  • 정청송
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.7
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    • pp.61-85
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    • 1997
  • 1. Background of the Study Old Testament time made some food and Sauces. Cosher food is God's Covernant. Ancient Greek cooking and Roman cooking had been Sauces. Much of what we know of Greek gastronomy is found in the writting of Archestrate, cooking is sigle and direct, Sauces are Cumin, Vinegar, Roman culinary comes from mareus, first century A.D. many of the ingredients used in apicius's recipes are seen againg in midival Eurpean cooking. ① Cumin Sauce for Oyster ② Sauce for grounds, puree, and cardoons. 2. Culinary in the Middle ages Liaquid Flavorings their Sauces tested Verjuice and Vinegar are most often called for when a Liquid is needed, Spices and Liaisons. 3. Cookery the eighteenth century The eighteen the century brought about greated Systemization of basics, coulis, Jus, and bouillons. 4. The twentieth century culinary Careme were Systematized and recorded by Auguste Escoffier in his Guide Culinare Standardized. 5. Grand Sauces are Considered one of the greatest test of a Chef's Skill, Whether they are classics, Such as Sauce, Supreme, demand the highest technical expertise. The Successful paring of Sauce with a good demonstrates an understanding of the food and an ability to judge. Sauce making allows the cook more freedom to work flavors, textures, Aromatics, Tasty, and color than any other area of cooking. A Sauce is never eaten alone, function, balance, the direct flavor, Sauces presents the basic Sauce-making techniques that have been used in the past and that are popular today, Sauces are organized around the primeifhes of classic world cooking 6. Grand Sauces are 1) Brown Sauces are 1) Brown Sauce ① Demiglace ②Espagnole ③ Fond de veau 2) Bechamel Sauce 3) Velote Sauce 4) Tomato Sauce and 5) Hollandaise Sauce ① Brown Sauce made with Stock, Roux, Tomato Paste and Mirepoix. ② Bechamel Sauce made with Roux and Milk. ③ Veloute Sauce made with Roux and White Stock. ④ Tomato Sauce made with Tomto, Vegetable and Stock. ⑤ Hollandaise Sauce made with Egg and Butter.

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Performance Analysis of the Soft Ice-cream Maker Having Two Evaporators Operating at Different Temperatures (두개의 증발기가 장착된 소프트 아이스크림 제조기의 성능 해석)

  • Kim, Jeong-Sik;Kim, Nae-Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.2
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    • pp.517-522
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    • 2013
  • Small size ice-cream maker has two evaporators having different evaporating temperatures of $4^{\circ}C$ and $-8^{\circ}C$. In such case, ice-cream maker system design becomes complicated because multiple capillary tubes affects one another. In this study, performance analysis was conducted for the soft ice-cream maker having two evaporators operating at different temperatures. The compressor was analyzed using efficiency models, the capillary tube was modeled assuming one-dimensional flow, the condenser and the evaporators were modeld based on UA-LMTD method. The refrigeration cycle simulation program was developed applying the enthalpy, pressure and mass balance on each component. Comparison of the test data with the simulated results for R404A revealed that evaporator temperatures of refrigerator and freezer agreed within $3^{\circ}C$.