http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
CpBV infection causes endocrine alteration of Plutella xylostella and inhibits pupal metamorphosis
Jiwan Kim,Yonggyun Kim 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Parasitization by Cotesia plutellae inhibits pupal metamorphosis of diamondback moth, Plutella xylostella. Two questions are raised : (1) which parasitic factor(s) is responsible for the antimetamorphosis and (2) how the parasitized larvae are altered in endocrine signals. This study addressed both questions. When C. plutellae bracovirus (CpBV), a parasitic factor of the wasp, alone was injected to nonparasitized P. xylostella larvae, it significantly inhibited pupal metamorphosis in a dosedependent manner. Corpora allata (CA) and prothoracic gland (PTG) were compared in both nonparasitized and parasitized P. xylostella. In both groups, size and shape of CA were not different. However, PTG was detected on prothoracic tracheal trunk in nonparasitized larvae, but not detected in parasitized. CpBV injection to nonparasitized larvae inhibited the growth of PTG. Transcriptional factor, broad complex, was partially cloned and expressed in nonparasitized P. xylotella. In parasitized or CpBV-injected larvae, broad complex gene was not expressed during late larval stage.
Hereditary protein S deficiency presenting acute pulmonary embolism
Kim, Jiwan,Kim, Sung Hea,Jung, Sang Man,Park, Sooyoun,Yu, HyungMin,An, Sanghee,Kang, Seonghui,Kim, Hyun-Joong Yeungnam University College of Medicine 2014 Yeungnam University Journal of Medicine Vol.31 No.1
Protein S deficiency is one of the several risk factors for thrombophilia and can cause blood clotting disorders such as deep vein thrombosis and pulmonary embolism. A 54-year-old man was admitted with the complaint of dyspnea and was diagnosed with pulmonary embolism. The patient had very low level of free protein S, total protein S antigen, and protein S activity (type I protein S deficiency). In history taking, we found that his mother, 78 year old, had a history of same disease 10 years ago, and confirmed the pronounced low level of protein S. The patient's son also had very low level of protein S, however there had not been any history of pulmonary embolism yet. This case study suggests that asymptomatic persons with a family history of protein S deficiency and pulmonary embolism should be checked regularly for early detection of the disease, as protein S deficiency can be suspected.
Hereditary protein S deficiency presenting acute pulmonary embolism
Jiwan Kim,Sung Hea Kim,Sang Man Jung,Sooyoun Park,HyungMin Yu,Sanghee An,Seonghui Kang,Hyun-Joong Kim 영남대학교 의과대학 2014 Yeungnam University Journal of Medicine Vol.31 No.1
Protein S deficiency is one of the several risk factors for thrombophilia and can cause blood clotting disorders such as deep vein thrombosis and pulmonary embolism. A 54-year-old man was admitted with the complaint of dyspnea and was diagnosed with pulmonary embolism. The patient had very low level of free protein S, total protein S antigen, and protein S activity (type I protein S deficiency). In history taking, we found that his mother, 78 year old, had a history of same disease 10 years ago, and confirmed the pronounced low level of protein S. The patient’s son also had very low level of protein S, however there had not been any history of pulmonary embolism yet. This case study suggests that asymptomatic persons with a family history of protein S deficiency and pulmonary embolism should be checked regularly for early detection of the disease, as protein S deficiency can be suspected.
Yonggyun Kim,Jiwan Kim 한국응용곤충학회 2012 한국응용곤충학회 학술대회논문집 Vol.2012 No.05
Parasitization by an endoparasitoid wasp, Cotesia plutellae, extends a larval period of Plutella xylostella and inhibits a larva-to-pupa metamorphosis. To determine antimetamorphic parasitic factor(s) in this host-parasitoid interaction, an effect of its symbiotic polydnavirus, Cotesia plutellae bracovirus (CpBV), was investigated by injecting purified virus particles to nonparasitized larvae of P. xylostella. Larvae injected with CpBV exhibited antimetamophosis in a viral dose-dependent manner. Also, the susceptibility to the viral injection was increased at young larval stages. Parasitized or virus-injected larvae shwed significant decrease in cell size of prothoracic gland and reduction in expression of ecdysone receptor (EcR) gene. However, they increased and maintained expression of insulin receptor (InR) gene. Twenty four CpBVsegments were individually injected to nonparasitized larvae. Only two segments (S22 and S27) had significant antimetamorphic effect. Subsequent RNA interference using double stranded RNA (dsRNA) was performed in each of encoded genes in each segment. Protein tyrosine phosphatase, ELP, and three hypothetical genes were determined to be antimetamorphic factors.
Semitransparent quantum dot light-emitting diodes by cadmium-free colloidal quantum dots.
Kim, Yohan,Ippen, Christian,Greco, Tonino,Oh, Min Suk,Chul, Jong Han,Lee, Jeongno,Wedel, Armin,Kim, Jiwan American Scientific Publishers 2014 Journal of Nanoscience and Nanotechnology Vol.14 No.11
<P>The InP/ZnSe/ZnS multishell colloidal quantum dots (QDs) were prepared by convenient heating-up method for an emission layer of semitransparent quantum dot light-emitting diodes (QD-LEDs). The synthesized InP/ZnSe/ZnS multishell QDs exhibited an emission peak at 545 nm for clear green color with a full-width at half-maximum (FWHM) of 50 nm, and photoluminescent (PL) quantum yield (QY) of 45%. The multishell on the indium phosphide (InP) core helped increasing QY and stability by reducing interfacial defects. Using a Ca/Ag cathode, the whole QD-LEDs were semitransparent throughout the visible wavelengths. The maximum brightness and currernt efficiency of semitransparent QD-LEDs reached 587 cd/m2 and 1.52 cd/A by controlling the thickness of Ca/Ag cathode, which is comparable to the device with opaque LiF/Al cathode (1444 cd/m2 and 1.98 cd/A). The performance of our semitransparent and eco-friendly device is not matched with traditional cadmium (Cd) based QD-LEDs yet, but it shows the great potential for various window-type information displays.</P>
Kim, Yoon Jin,Ha, Son-Tung,Lee, Gun Joo,Nam, Jin Ho,Ryu, Ik Hyun,Nam, Su Hyun,Park, Cheol Min,In, Insik,Kim, Jiwan,Han, Chul Jong American Scientific Publishers 2013 Journal of Nanoscience and Nanotechnology Vol.13 No.5
<P>This paper reported a research on space charge distribution in low-density polyethylene (LDPE) nanocomposites with different types of graphene and graphene oxide (GO) at low filler content (0.05 wt%) under high DC electric field. Effect of addition of graphene oxide or graphene, its dispersion in LDPE polymer matrix on the ability to suppress space charge generation will be investigated and compared with MgO/LDPE nanocomposite at the same filler concentration. At an applied electric field of 80 kV/mm, a positive packet-like charge was observed in both neat LDPE, MgO/LDPE, and graphene/LDPE nanocomposites, whereas only little homogenous space charge was observed in GO/LDPE nanocomposites, especially with GO synthesized from graphite nano fiber (GNF) which is only -100 nm in diameter. Our research also suggests that dispersion of graphene oxide particles on the polymer matrix plays a significant role to the performance of nanocomposites on suppressing packet-like space charge. From these results, it is expected that nano-sized GO synthesized from GNF can be a promising filler material to LDPE composite for HVDC applications.</P>
Jiwan Seo,Jae Seung Kim,Kyu Hong Kim 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
JP-10 is an important fuel in the petroleum and aviation industries because it has the highest specificimpulse among kerosene-type jet fuels. Thus, a high predictive performance for the thermodynamicproperties of JP-10 is necessary for high-fidelity computational analysis. To accurately and efficiently predictthe thermodynamic properties of JP-10, the extended Redlich-Kwong-Peng-Robinson (eRK-PR) equationof state (EoS) is developed. A new d parameter constraint condition and correlation between theexperimental critical compressibility factor (Zexpc ) and the critical compressibility factor of the EoS(ZEoSc ) are proposed to extend the range of the available Zexpc in the Redlich-Kwong-Peng-Robinson EoS. Subsequently, the predictive performance of the eRK-PR EoS is evaluated on eight test compounds andJP-10. The predicted thermodynamic properties of nine pure compounds are compared with thoseobtained using a variety of EoSs and the National Institute of Standards and Technology data. The resultsconfirm that the eRK-PR EoS predicts the thermodynamic properties of JP-10 more accurately than theother EoSs.