• Title/Summary/Keyword: Boiling method

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EFFECTS OF GRID SPACER WITH MIXING VANE ON ENTRAINMENTS AND DEPOSITIONS IN TWO-PHASE ANNULAR FLOWS

  • KAWAHARA, AKIMARO;SADATOMI, MICHIO;IMAMURA, SHOGO;SHIMOHARAI, YUTA;HIRAKATA, YUDAI;ENDO, MASATO
    • Nuclear Engineering and Technology
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    • v.47 no.4
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    • pp.389-397
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    • 2015
  • The effects of mixing vanes (MVs) attached to a grid spacer on the characteristics of air-water annular flows were experimentally investigated. To know the effects, a grid spacer with or without MV was inserted in a vertical circular pipe of 16-mm internal diameter. For three cases (i.e., no spacer, spacer without MV, and spacer with MV), the liquid film thickness, liquid entrainment fraction, and deposition rate were measured by the constant current method, single liquid film extraction method, and double liquid film extraction method, respectively. The MVs significantly promote the re-deposition of liquid droplets in the gas core flow into the liquid film on the channel walls. The deposition mass transfer coefficient is three times higher for the spacer with MV than for the spacer without MV, even for cases 0.3-m downstream from the spacer. The liquid film thickness becomes thicker upstream and downstream for the spacer with MV, compared with the thickness for the spacer without MV and for the case with no spacer.

The High Temperature-Moisturizing Method for Obtaining Quality Postmortem Fingerprints from Decomposed Fingers

  • Kim, Young-Sam;Park, Hee-Chan;Eom, Yong-Bin
    • Biomedical Science Letters
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    • v.13 no.4
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    • pp.369-374
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    • 2007
  • A fingerprint is an impression of the friction ridges of all or any part of the finger. A friction ridge is a raised portion of the epidermis on the palmar (palm and fingers) or plantar (sole and toes) skin, consisting of one or more connected ridge units of friction ridge skin. There are two fundamental principles underlying the use of fingerprints as a means of identifying individuals - immutability and uniqueness. Friction ridges develop on the fetus in their definitive form before birth. Ridges are persistent throughout life except for permanent scarring. Ridge patterns and the details in small areas of friction ridges are unique and never repeated. Friction ridge patterns vary within limits, which allow for classification. We developed the high temperature-moisturizing method to obtained quality postmortem impressions from decomposing friction ridge skin. This technique is a simple procedure that uses boiling water to recondition the skin. This reconditioning process enhances detail present on the fingers and exposes ridge detail not visible to the naked eye. Therefore, we can recover the quality fingerprints, even from the worst decomposed bodies.

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The Study of Literature Review on Poisoning and the Pragmatic Significance of the Processing Method of Armeniacae Amarum Semen to use in oriental medical prescription (방제활용을 위한 행인(杏仁)의 포제 및 독성의 문헌적 고찰)

  • Kim, Se-Ran;Lee, Jin-Won;Lim, So-Yeon;Kim, Jong-Dae
    • Herbal Formula Science
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    • v.19 no.2
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    • pp.151-160
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    • 2011
  • Objectives : The purpose of this study was to investigate Armeniacae Amarum Semen of poison and the Pragmatic significance of the processing method. Methods : We researched several books dealing with Armeniacae Amarum Semen of poison and the Pragmatic significance of the processing method. Results & Conclusions : Armeniacae Amarum Semen is sweet, bitter, warm and harmful in nature. It is known as moistening the lung to arrest cough, moistening the colon, to move the bowels and promoting digestion and curing dog bites. Armeniacae Amarum Semen has toxicity, decreasing toxicity of Armeniacae Amarum Semen is boiling, peeling or roasting. If Armeniacae Amarum Semen has two seeds in one apricot or has six-floral leaf, do not used for medicinal purposes.

The literatual study on the external treatment of premature ejaculation (조루(早漏)의 외치법(外治法)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Park, Chan-uk;Cho, Chung-sik;Kim, Chul-jung
    • Journal of Haehwa Medicine
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    • v.10 no.1
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    • pp.167-174
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    • 2001
  • According to the literatual study on the external treatment of premature ejaculation, the results were as follows. 1. Linition is inunction glans penis after infiltrate ASARI HERBA CUM RADICE(細辛), CARYOPHYLLI FLOS(丁香), CHEBULAE FRUCTUS(訶子), PAPAVERIS FRUCTUS(罌粟殼), FOSSILIA OSSIS MASTODI(龍骨), OSTREAE CONCHA(牡蠣 in oenostagma. 2. Retrojection or hypoatmism method is boiling CHINENSIS GALLA(五倍子), CNIDII FRUCTUS(蛇牀子) and hypoatmism, down temperature infiltrate glans penis. 3. Mesompharion apposition method is calorization VESPAE NIDUS(露蜂房), ANGELICAE DAHARICAE RADIX(白芷), and utilization vineger apposite mesompharion. 4. Medicament belt method is belt on lumbus and bythus by ROSAE LAEVIGATAE FRUCTUS(金櫻子), EURYALES SEMEN, OSTREAE CONCHA(牡蠣), TRIBULI FRUCTUS, AIPINIAE OXYPHYLLAE FRUCTUS(益智仁), NELUMBINIS SEMEN(蓮子肉) Powders. 5. Enema is injection in the rectum ANGELICAE GIGANTIS RADIX(當歸) effusion. 6. Much utilization agent are ASARI HERBA CUM RADICE(細辛), CHINENSIS GALLA(五倍子), OSTREAE CONCHA(牡蠣), CNIDII FRUCTUS(蛇床子), GRANATI PERICARPIUM(石榴皮), CARYOPHYLLI FLOS(丁香), CHEBULAE FRUCTUS(訶子), FOSSILIA OSSIS MASTODI(龍骨), VESPAE NIDUS(露蜂房), PAPAVERIS FRUCTUS(罌粟殼) etc. They are occupied in adstringentia, juventia, divergence agent, liver stabilizer agent.

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Characteristics of OLED Lifetime by ITO/glass Substrate Pre-treatment and Cathode Deposition Methods (ITO/glass 기판 전처리와 음극 전극 증착방법에 따른 OLED 수명 특성)

  • Shin, Se-Jin;Jang, Ji-Geun;Kim, Min-Young
    • Journal of the Semiconductor & Display Technology
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    • v.7 no.2
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    • pp.59-62
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    • 2008
  • The Lifetime of OLEDs by ITO/glass substrates cleaning method and cathode deposition method were investigated in the fabrication of green light emitting OLEDs with $Alq_3$-C545T fluorescent system. In our experiments, the optimum cleaning method was obtained at last processing of boiling IPA(isopropyl alcohol). And the optimum deposition methode was obtained at 3 steps deposition rate of Al. The deposition rate of 3 steps progressed changing from $0.5\AA$/sec to $3\AA$/ sec. The green light emitting OLED with plasma treatment at 150W for 2 minutes showed the highest luminance and efficiency of 20000 cd/$m^2$ and 16 lm/W. On the contrary, the OLED device without plasma treatment showed much lower performance with the luminance and efficiency of 3500 cd/$m^2$ and 2 lm/W.

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Simple and Rapid Identification of Low Level Hepatitis B Virus DNA by the Nested Polymerase Chain Reaction

  • Jang, Jeong-Su;Lee, Kong-Joo
    • Archives of Pharmacal Research
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    • v.19 no.6
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    • pp.469-474
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    • 1996
  • A rapid and sensitive method has been developed to detect hepatitis B virus DNA (HBV) by nested polymerase chain reaction (PCR) technique with primers specific for the surface and core regions in capillary thermal cycler within 80 min. The lower limit for detection by present PCR method is $10^{-5}$ pg of recombinant HBV DNA which is equivalent to that determined by one round of PCR amplification and Southern blot hybridization analysis. When boiled HBV positive serum was serially diluted 10-fold, HBV DNA was successfully determined in $1{\mu}l-10^{-3}$ of serum. HBV DNA was detected by present method in 69 clinical samples including HBsAg positives and negatives by enzyme-linked immunosorbent assay (ELISA). When serum samples were amplified by nested PCR using surface and core region primers, HBV DNAs were detected in 37 of 69 samples (53.6%) and 18 of 69 samples (26.1%), respectively. These results can inform the infectious state of HBsAg positive pateints. A simple and rapid nested PCR protocol by using boiled serum as DNA template has been described for the clinical utility to determine HBV DNA in human serum.

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Food of Maghreb -Algerian food in particular- (마그레브(Maghreb)의 식문화 -알제리아를 중심으로-)

  • Chun, Hui-Jung
    • Journal of the Korean Society of Food Culture
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    • v.11 no.5
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    • pp.651-661
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    • 1996
  • Algeria is located at the Mediterranean coast of north Africa, 90% of its population is concentrated in the coastal area which is mainly devoted to agriculture. Highland steppe and vast desert climate have determined its food culture. Long arab domination has influenced food of Algeria which has also undergone certain impact of Spanish, Turkish and French occupation. A variety of agricultural products, vegetables, fruits, spices and herbs have determined cooking method and food combination of Algeria. It use neither pork nor alcohol. Its main food consists of bread made from wheat flour and couscous cooked with semoule, Mechuwi, roast lamb and chorba, mixed soup are also typical foods of this region. For climatic reason lamb and chicken are prefered. Energy efficient method is applied to cooking through using oil for saute and water for boiling. Under european influence, Algerian salad used dressing for leaf vegetables, root and other kind vegetables were boiled. Serving with cake and cookies as dessert may possibly be the influence from the French occupation. The cake and cookie are made of wheat flour or other grain flour and take a specific form to be fried sweet with honey. Herbs and spices are widely used in cooking which are easily cultivated in household: mint, basil, rosemary, bayleaf, thyme, sage, fennel, marjoram, coriander, celery. Garlic, onion, piment, red pepper, cinammon are also widely used in an ordinary cooking. Reasonable food combination and economic cooking method could be subject of Algerian food study.

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Changes in Pectic Substances of Korean Pickled Cucumbers with Different Preparation Methods (담금 방법을 달리한 오이지의 숙성 중 펙틴질의 변화)

  • 장명숙;박미원;박용곤
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.24 no.1
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    • pp.133-140
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    • 1995
  • This investigation was undertaken for the purpose of studying the changes of pectic substances in alcohol insoluble solids(AIS) extracted from cucumbers pickled in salt. The preparation methods were brining the cucumbers in 10% NaCl solution (bolied, method A), 20% NaCl solution(bolied, method B) and 20% NaCl solution(cool to $25^{\circ}C$ after boiling, method C). The composition ratio of hot water soluble pectin(HWSP) in AIS decreased during brining, while that of 0.4% sodium hexametaphosphate soluble pectin(NaSP) increased remarkably. The contents of Ca and Mg in AIS increased regardless of preparation methods used. By DEAE-cellulose chromatography, HWSP from fresh and brined cucumbers were divided into six fracitons. 0.2M peak was the main fraction in fresh cucumber, whereas 0.05M and 0.2M peak were the main fraction in pickled cucumbers. On the other hands, NaSP from fresh and brined cucumbers were divided into five fractions and 0.4M peak was the main fraction. However, the composition ratios of galacturonic acid and neutral sugar of 0.4M fraction in brined cucumbers were higher than those of fresh cucumber.

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Synthesis and Characterization of Rutile TiO2 Powder by the Sulfuric Acid Method (황산법을 이용한 루틸형 TiO2 분말의 제조 및 특성 평가)

  • Choi, Soon Ok;Cho, Jee Hee;Kim, Won Yong;Lim, Sung Hwan
    • Korean Journal of Metals and Materials
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    • v.50 no.7
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    • pp.523-530
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    • 2012
  • We investigated the experimental method that uses the homogeneous precipitation method to prepare mica flakes-coated rutile-type titania pearlescent pigment with urea as a precipitant. $TiO_2$ particles exhibit a high reflection of lights and optical properties with chemical stabilities, so they are appropriate for coating on luminescent pigments (mica). The coating principle of mi ca coated titania with various thicknesses was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and tested by spectrophotometer. Mica with a particle size in the range of $40-60{\mu}m$ was suspended in water, and metal sulphates and urea were added to the mixture, which was heated to boiling. The change in pH was continuously followed. The metal oxide and crystal structure were affected by the conditions of $TiOSO_4$ concentration and reaction time with a sintering temperature the range of $800-1100^{\circ}C$.

Detection of Enterohemorrhagic Escherichia coli O157:H7 Strains Using Multiplex Polymerase Chain Reaction (Multiplex PCR을 이용한 장출혈성 대장균 O157:H7의 검출)

  • 엄용빈;김종배
    • Biomedical Science Letters
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    • v.4 no.1
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    • pp.43-56
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    • 1998
  • A multiplex PCR method was designed by employing primers specific for the eaeA gene, conserved sequences of Shiga-like toxins (SLT-I.II), and the 60-MDa plasmid of enterohemorrhagic E. coli (EHEC) O157:H7 strain. A set of six synthetic oligonucleotide primers derived from sequences of the SLT-I.II, eaeA, and 60-MDa plasmid genes of E. coli O157:H7 were used in a multiplex PCR amplification procedure to detect these genes in the same enteric pathogens. In two enterohemorrhagic E. coli O157:H7 (ATCC 35150, ATCC 43894) reference strains, PCR products of 317bps (eaeA), 228bps (SLT-I.II), and 167bps (60-MDa plasmid) were successfully amplified simultaneously in a single reaction. However, the specific PCR products were not amplified in control strains of other enteric bacteria. The sensitivity of the multiplex PCR assay for detection of the SLT-I.II, eaeA, and 60-MDa plasmid genes of E. coli O157:H7 was found to be 2.5$\times$10$^{6}$ of bacteria in diarrheal stool to amplify all three bands. The multiplex PCR technology will allow large-scale screening of many clinical specimens or contaminated foods, and will be a very useful method for the detection of a wide range of microorganisms present in the environment, including EHEC O157:H7 in various types of specimens. The multiplex PCR assay has the potential to be used as a specific and rapid method for clinical diagnosis of disease caused by EHEC O157:H7.

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