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Exploration on optimal eclosion condition of pupa for Hermetiaillucens(Dipter:Stratmyidae)
Gug-In Han,Young-Hye Lee,Geun-seop Kim,Hong-Kook Kim,Sang-Deok Seo,Seok-Ki Jung,Byeong-Soo Kim 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
To investigate the proper eclosion condition of Black Soldier Fly(BSF), Hermetia illucens was investigated the eclosionperiod and rate by cluster size and temperature for 3 weeks. Respectively, ten pupaes were added to the pupae(FTP)and rice husk (TTR) at 25℃, also treated only with pupae(TTR) and rice husk (TTR) at 30℃. In addition, Four hundredpupaes of each pupa were treated with only pupa (SP) and rice husk(SR) at 25℃, while was tested only pupa(TP) andrice husk(TR) at 30℃. As a result of the small group experiment, the FTR group showed the highly rate of emergencerate of 96.6%, which was more efficiently than other treatments, and also, TR group showed of highly efficiency (96.25%).Compared to the small group experiment, the algebra rate and algebra rate averaged 1.1 days faster and increased by13.3%. Two experimental results showed that eclosion rate was influenced by temperature and eclosionrate by shelter.
Lee, Su-Rok,Kim, Eun-Sung,Kim, Sung-Woo,Kim, Hyeong-Chul,Shim, Kwan-Seob,Kim, Jong-Gug The Korean Society of Animal Reproduction 2012 Reproductive & developmental biology Vol.36 No.2
After spermatogenesis, spermatozoa come in contact with fluids in the epididymis where they mature. During ejaculation, spermatozoa are mixed with secretions from prostate gland, vesicular glands, and bulbourethral glands. During natural mating, seminal plasma is deposited in the female reproductive tract eliciting various physiological and immunological responses. With the advances in proteomics, the components of seminal plasma have been identified and the information may be valuable in identifying markers for fertility. Components of seminal plasma that affect fertility have been discovered and the mechanism of action of these factors has been determined. The objective of this study was to determine the specific seminal plasma proteins from Korean native cattle, Hanwoo, and Korean native brindle cattle (KNBC) with the long term goal of improving fertilization rate. After SDS-PAGE and 2-dimensional gel electrophoresis, proteins were identified by Q-ToF analysis. They include plasma serine protease inhibitor precursor and platelet-activating factor acetylhydrolase after SDS-PAGE. Number and density of the spots in 2-dimensional gels were higher in KNBC than Hanwoo. Proteins identified from the paired spots of both breeds include chain A, bull seminal plasma PDC-109 Fibronectin Type II module, BSP-30 kDa precursor, and Spermadhesin Z13 or its precursor. Interestingly, some proteins were identified from multiple spots. The functional differences of these diverse forms of the proteins may require further studies. With their previously reported roles in sperm capacitation by these proteins, the studies on the mechanism of action, ligand interaction and the variation in the genome may help improving fertility in cattle.
Lee, Jin Bae,Chang, Sung Gug,Kim, So Yeon,Lee, Young Soo,Ryu, Jae Kean,Choi, Ji Yong,Kim, Kee Sik,Park, Jae Sik Springer Netherlands 2012 INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING Vol.28 No.7
<P>The aim of the study was to assess the accuracy of the three-dimensional (3D) quantitative coronary analysis (QCA) system by comparing with that of intravascular ultrasound (IVUS) QCA and two-dimensional (2D) QCA. 3D QCA, 2D QCA and IVUS QCA were performed in 45 vessel segments. The obtained values for the branch to branch segment vessel length and the proximal part of the segment vessel’s lumen diameter were measured. Inter-technique agreement was analyzed using paired sample <I>t</I>-test and Bland–Altman analysis. No differences were found in vessel lengths taken by 3D QCA and IVUS QCA (mean difference: 0.29 ± 1.06 mm, <I>P</I> = 0.07). When compared with IVUS QCA, 2D QCA underestimated vessel length (mean difference: −1.78 ± 2.55, <I>P</I> < 0.001). Bland–Altman analysis showed close agreement and a small bias between 3D QCA and IVUS QCA in the measurement of vessel length. The vessel lumen diameter measurements by 2D QCA and 3D QCA were significantly lower than that by IVUS QCA (mean difference: −0.64 ± 0.69, <I>P</I> < 0.001; −0.56 ± 0.52, <I>P</I> < 0.001 respectively). Rotational angiography with 3D reconstruction can provide a more accurate vessel length measurement, whereas 2D and 3D QCA underestimated the vessel lumen diameter compared with IVUS QCA.</P>
Comparison on decomposition efficiency for larva of Hermetiaillucens(Dipter:Stratmyidae)
Gug-In Han,Young-Hye Lee,Geun-seop Kim,Hong-Kook Kim,Sang-Deok Seo,Seok-Ki Jung,Byeong-Soo Kim 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
Environmental cleansing insect which is well known for Black Soldier Fly(BSF), Hermetia illucens egg mass wightby hatch survival rate and animal carcass and pig feces decomposition ability trial and examined survival rate. BSF eggmass examined A-1,2,3 group each 4.56g equivalent condition hatch after survival rate, Survival BSF larva was36,394.67±3,038.863, survival rate average was 64.8%. Put the BSF larva 45,000 into the Python regius carcass showeddecomposition takes 9 days, wight was decreased rate to 67%. Put A-1,2,3 survival BSF larva dived half into pig feces,carcass. Pig carcass, feces each 6.35kg decomposition take 12 days, 14 days, wight decreased rate to 58.8%, 63.2%, Survivalrate showed to 4.87%, 85.6%, one larva per 1.16g, 2.26g pig carcass, feces take decomposition. Since the lack of food,BSF larva didn’t grow more than the pig carcass feed group, extra in 6kg of pig feces feed. Amount pig feces take12.35kg decomposition during 32 days. Manure make 4.2kg.
A New Resistance Model for a Schottky Barrier Diode in CMOS Including N-well Thickness Effect
Lee, Jaelin,Kim, Suna,Hong, Jong-Phil,Lee, Sang-Gug The Institute of Electronics and Information Engin 2013 Journal of semiconductor technology and science Vol.13 No.4
A new resistance model for a Schottky Barrier Diode (SBD) in CMOS technology is proposed in this paper. The proposed model includes the n-well thickness as a variable to explain the operational behavior of a planar SBD which is firstly introduced in this paper. The model is verified using the simulation methodology ATLAS. For verification of the analyzed model and the ATLAS simulation results, SBD prototypes are fabricated using a $0.13{\mu}m$ CMOS process. It is demonstrated that the model and simulation results are consistent with measurement results of fabricated SBD.
Spiral Inductor Design for Quality Factor
Lee, Sang-Gug,Kim, Sin-Cheol The Institute of Electronics and Information Engin 2002 Journal of semiconductor technology and science Vol.2 No.1
A closed form expression for the quality factor of the spiral inductor, methodologically, is presented as a function of the inductance ($L_{ind}$), metal-line width (W), spacing (S), inner and the diameter ($D_i$). For a given inductance, the dependences of quality factor on W, S, and $D_i$ are analyzed, and suggested the design optimization guidelines.