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동씨침(董氏鍼)의 경항통(頸項痛) 치료(治療)에 관한 임상적(臨床的) 고찰(考察)
이채우,조태성,박인범,김상우,안창범,송춘호,윤현민,장경전,Lee, Chae-woo,Cho, Tai-Sung,Park, In-beohm,Kim, Sang-woo,Ahn, Chang-beohm,Song, Choon-ho,Youn, Hyoun-min,Jang, Kyung-jeon 대한침구의학회 2003 대한침구의학회지 Vol.20 No.2
Objective : The purpose of this study was to evidence the effect of Dong-Shi Acupuncture by improving degree of forty four patients who have received a Dong-Shi Acupuncture therapy at Dong Eui oriental hospital OPD and chiefly complained for neck pain and related symptoms. Materials and Methods: Forty four patients were diagnosed with physical inspection and radiography, and investigated into the effect of treatment sharing before treatment and after 2 weeks and 4 weeks treatment by Dr. Kim's method. Results and Conclusions: The conclusion of this study was that improving degree of forty four patients who have received a Dong-Shi acupuncture therapy for all items and excellence of the Dong-Shi Acupuncture was evidenced.
Kim, Jae-Hun,Katoch, Akash,Kim, Hyoun Woo,Kim, Sang Sub unknown 2016 Chemical communications Vol. No.
<P>We have realized the highly sensitive, selective ppm-level carbon monoxide (CO) detection based on graphene oxide (RGO) nanosheets-loaded SnO2 nanofibers with simultaneous Au functionalization. The interplay between RGO/Au and SnO2 in terms of transfer of charge carriers and modulation of potential barriers is responsible for the exceptionally high CO detectability.</P>
Kim, Jae-Hun,Mirzaei, Ali,Kim, Hyoun Woo,Kim, Sang Sub Elsevier 2018 APPLIED SURFACE SCIENCE - Vol.451 No.-
<P><B>Abstract</B></P> <P>Metallic superhydrophobic surfaces are an important class of superhydrophobic materials. We used a simple method to fabricate micro-terrace nano-leaf hierarchical structures to realize superhydrophobicity on commercial aluminum sheets. Microscaled rough surfaces were produced by a simple etching method using Beck’s etchant while nanoscale structures were achieved by dipping in sodium chloride solution. Subsequently, they were fluorinated to decrease the surface free energy. The advantages of hierarchical structures were demonstrated by comparing the superhydrophobic properties in nano-leaf, micro-terrace, and micro-terrace nano-leaf hierarchical structures; the water contact angle increased from to 172° with transition of the surface from a micro-terrace or nano-leaf structure to a micro-terrace nano-leaf hierarchical structure. Sliding angles were extremely low (1°) in both cases. The fabricated aluminum surfaces were stored at very cold and very hot temperatures in air and water; they retained their superhydrophobicity for long times under all conditions, demonstrating the high stability and durability of the fabricated layers under severe conditions. As expected, the hierarchical structure also showed self-cleaning properties. As the approach for producing superhydrophobic aluminum surfaces is very facile and inexpensive, the present method can be easily used to realize superhydrophobic surfaces on other metals and alloys.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Preparation of superhydrophobic aluminum surfaces using a two-step chemical etching. </LI> <LI> Study of effects of etching and dipping times on the final surface properties. </LI> <LI> The highest water contact angle was 172° with a sliding angle of 1°. </LI> <LI> Excellent durability was demonstrated. </LI> <LI> The fabricated surfaces also showed self-cleaning properties. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Superhydrophobic aluminum surfaces prepared by simple chemical etching have micro-terrace nano-leaf hierarchical structure and show self-cleaning properties.</P> <P>[DISPLAY OMISSION]</P>
Superhydrophobic and oleophilic micro‐nano hierarchical Pd‐decorated SiO <sub>2</sub> layers
Kim, Jae‐,Hun,Mirzaei, Ali,Kim, Hyoun Woo,Kim, Sang Sub Wiley (Blackwell Publishing) 2018 Journal of the American Ceramic Society Vol.101 No.9
<P>This paper reports a novel fluorinated micro-nano hierarchical Pd-decorated SiO2 structure (hereafter called Pd/SiO2), which was formed by the deposition of Pd nanoparticles (NPs) on SiO2 microspheres. The SiO2 layers with microscale roughness were fabricated by electrospraying a solution prepared using the sol-gel process. Subsequently, the Pd NPs were deposited using an ultraviolet reduction process. The resulting surfaces exhibited a micro-nano hierarchical morphology. After fluorination, the micro-nano hierarchical surface exhibited outstanding water repellency with a water contact angle (WCA) of 170 degrees and a sliding angle <5 degrees, indicating excellent superhydrophobic properties. The layers exhibited good long-term durability and excellent ultraviolet resistance. Interestingly, the surface was oleophilic (CA of oil similar to 10 degrees). These results show the potential of employing superhydrophobic fluorinated Pd/SiO2 layers in smart devices, such as self-cleanable surfaces and intelligent water/oil separation systems.</P>
Kim, Ki-Hwan,Ka, Kang-Hyeon,Kang, Ji Hyoun,Kim, Sangil,Lee, Jung Won,Jeon, Bong-Kyun,Yun, Jung-Kuk,Park, Sang Rul,Lee, Hyuk Je The Korean Society of Mycology 2015 Mycobiology Vol.43 No.1
We identified single nucleotide polymorphism (SNP) markers in the laccase gene to establish a line-diagnostic system for shiitake mushrooms. A total of 89 fungal isolates representing four lines, including Korean registered, Korean wild type, Chinese, and Japanese lines, were analyzed. The results suggest that SNP markers in the laccase gene can be useful for line typing in shiitake mushrooms.
Kim, Jae-Hun,Mirzaei, Ali,Kim, Hyoun Woo,Kim, Sang Sub Elsevier 2019 Sensors and actuators. B Chemical Vol.296 No.-
<P><B>Abstract</B></P> <P>We introduced a selective and self-heated CO gas sensor based on Au-decorated WS<SUB>2</SUB> nanosheets. Au nanoparticles (NPs) were decorated on WS<SUB>2</SUB> NSs using UV irradiation technique at different irradiation times (1, 15 and 30 s). SiO<SUB>2</SUB> grown on Si was used as substrates and the gas sensors with top electrode configuration were fabricated. Gas sensors were able to work under self-heating mode with an applied voltage of 2 V for selective CO sensing. The results of CO gas sensing demonstrated the promising effects of Au for the enhanced response and selectivity towards CO gas. Also, the low-voltage operation at room temperature resulted in low-power consumption. This study demonstrates realization of selective CO gas sensor using a facile approach along with low power consumption.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We reported CO gas sensing properties of 2D WS<SUB>2</SUB> decorated with Au nanoparticles. </LI> <LI> We revealed the promising effects of Au for the enhanced response and selectivity towards CO gas. </LI> <LI> Low-voltage operation of the fabricated gas sensors resulted in low-power consumption. </LI> </UL> </P>
Effect of Patellar Taping on Quadriceps Muscle of Knee Joint
Sung Eun Lee,Shin Gyun Kim,Sung Hyoun Cho,Yoo Rim Choi,Chang Sook Kim,Sung Joon Kim,Ki San Nam,Gyung Kim 국제물리치료학회 2012 Journal of International Academy of Physical Ther Vol.3 No.1
This study aims to examine the effect of patellar taping common to patients with patellofemoral pain syndrome on the change of knee joint location. The total number of participants is 12 patients with no pain in their knee. There are three different experiments: no-taping, placebo taping, and patellar taping. After application, they squat on their hams. As a result, both the muscle activity of vastus medialis and that of vastus lateralis increased in placebo taping compared to no-taping, which wasn't statistically significant. However, the muscle activity of vastus medialis and that of vastus lateralis decreased in patellar taping compared to no-taping, which was statistically significant. This suggests that patellar taping causing the lateral attraction of knee joint is more influential to the dynamics of knee joint than skin afferent input in placebo taping. Therefore, patellar taping is effective to change the location of knee joint, affect the muscle activity of quadriceps muscle of thigh, and thus correct the misalignments of the knee joint.
Kim, Kyung Su,Ahn, Cheol Hyoun,Jung, Sung Hyeon,Cho, Sung Woon,Cho, Hyung Koun American Chemical Society 2018 ACS APPLIED MATERIALS & INTERFACES Vol.10 No.12
<P>We suggest the use of a thin-film transistor (TFT) composed of amorphous InGaZnO (a-IGZO) as a channel and a sensing layer for low-concentration NO<SUB>2</SUB> gas detection. Although amorphous oxide layers have a restricted surface area when reacting with NO<SUB>2</SUB> gas, such TFT sensors have incomparable advantages in the aspects of electrical stability, large-scale uniformity, and the possibility of miniaturization. The a-IGZO thin films do not possess typical reactive sites and grain boundaries, so that the variation in drain current of the TFTs strictly originates from oxidation reaction between channel surface and NO<SUB>2</SUB> gas. Especially, the sensing data obtained from the variation rate of drain current makes it possible to monitor efficiently and quickly the variation of the NO<SUB>2</SUB> concentration. Interestingly, we found that enhancement-mode TFT (EM-TFT) allows discrimination of the drain current variation rate at NO<SUB>2</SUB> concentrations ≤10 ppm, whereas a depletion-mode TFT is adequate for discriminating NO<SUB>2</SUB> concentrations ≥10 ppm. This discrepancy is attributed to the ratio of charge carriers contributing to gas capture with respect to total carriers. This capacity for the excellent detection of low-concentration NO<SUB>2</SUB> gas can be realized through (i) three-terminal TFT gas sensors using amorphous oxide, (ii) measurement of the drain current variation rate for high selectivity, and (iii) an EM mode driven by tuning the electrical conductivity of channel layers.</P> [FIG OMISSION]</BR>
Pt-Catalyzed Growth of Amorphous SiOx Nanowires
Hyoun Woo Kim,Ik-Mo Lee,Jae-Won Soh,Jong Woo Lee,Keun Hyeung Lee,Mi Kyoung Park,Sang-Eon Park,Seung Hyun Shim,Wan In Lee 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.I
We have fabricated SiO$_x$ nanowires on a large scale through a Pt-catalyzed process. The scanning electron microscopy (SEM) investigation revealed that the nanowires had diameters in the range of 30 $\sim$ 130 nm. X-ray diffraction (XRD), selected area electron diffraction (SAED), and energy-dispersive X-ray (EDX) analyses indicated that the nanowires were amorphous and consisted only of Si and O elements. The growth of the SiO$_x$ nanowires was most likely controlled by the base-growth mechanism with the assistance of the underlying Pt layer. The room-temperature PL spectrum measurement showed a broad emission band, peaking around 3.0 eV. This simple heating method, with the effectiveness of the Pt catalyst, can be applied to a wide range of substrate materials, which may contribute to producing various useful nanostructures.