재래한우의 보존을 위한 혈청 및 혈구단백질의 유전적 다형현상

한상기(S . K . Han),윤희섭(H . S . Yoon),정의룡(E . Y . Chung),신유철(Y . C . Shin),변희대(H . D . Byun) 한국축산학회 1995 한국축산학회지 Vol.37 No.1

Biochemical polymorphisms of five red cell and semen proteins, Hemoglobin(Hb), Transferrin(Tf), Post-transferrin 2(Ptf2), Post-albumin(Pa) and Albumin(Alb) as genetic markers in Korean cattle were analyzed by Starch and Polyacryamide gel electrophoresis and their phenotypes, genotypes and gene frequencies were estimated in order to analysis the genetic constitution of Korean native cattle population. In the Hemoglobin(Hb) locus four different phenotypes AA, AB, BB and CH were observed and assumed to be controlled by four different alleles designated Hb^A, Hb^B, Hb^C and Hb^H, and the Hb^H type was rare variant of Korean native cattle. The observed distribution of phenotypes were 73.37% for AA type, 23.37% for AB type. 2.72% for BB type and 0.54%r for CH type. Gene frequencies of Hb^A, Hb^B, Hb^C and Hb^H were 0.8505, 0.1440, 0.0027 and 0.0027. Semen Transfetrin(Tf) locus, 11 different phenotypes AA, AD₁, AD₂, AE, AH, D₁D₁, D₁D₂, D₁E, D₂H, D₂D₂, D₂E, EE and EH type were identified, which considered to be controlled by codominant alleles TF,^A Tf^D, Tf^D, Tf^E and Tf^H at a single locus. The frequencies of Tf genotypes AD₁, D₁E, D₁D₂, D₂E, AA, AE, D₁D₂, AD₂, D₁D₁, EE, AH, D₂H and EH were found to be 16.30, 13.33, 11.85, 10.37, 9.69, 8.15, 7.41, 9.63, 5.93, 4.44, 1.48, 0.74 and 0.01%, respectively. Gene frequencies of TF^A, Tf^(D1) Tf^(D2) and Tf^H were 0.2741, 0.2704, 0,2333, 0.2074 and 0.0148, respectively. And TfH gene were newly identified in Korean native cattle. Considering Post-transterrin 2 locus, three different phenotypess FF, FS and SS were identified, which considers to he controlled by two alleles Ptf^F and Ptf^S at a single autosomal locus. The frequencies of Rf genotypes FS, FF and SS were found to be 51.06. 36.88 and 12.06%n, respectively and gene frequencies of Ptf^F and Ptf^S were 0.6241 and 0.3759. In the Postalbumin(Pa) locus, three different phenotypes FF, FS and SS type were observed to be genetically controllled by Pa^F and Pa^S gene. And genotypes frequencies FS. FF amd SS type were 48.65, 36.(H and 1_5.32%, respectively. The gene frequencies of Pa^F and Pa^S were 0.6036 and 0.3964. The Albumin(Alb) locus were observed to lack any individual variation. Therefore, this locus were defined to be monomorphic. In comparison of genetic distance and dendogram calculated from the gene frequencies, close relationship was obtained between the Japanese cattle and the Korean cattle.

Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

Chilikin, K.,Adachi, I.,Aihara, H.,Al Said, S.,Asner, D. M.,Aulchenko, V.,Ayad, R.,Babu, V.,Badhrees, I.,Bakich, A. M.,Bansal, V.,Barberio, E.,Besson, D.,Bhardwaj, V.,Bhuyan, B.,Biswal, J.,Bobrov, A. American Physical Society 2017 Physical Review D Vol.95 No.11

<P>We perform a full amplitude analysis of the process e(+)e(-)-> J/psi D (D) over bar, where D refers to either D-0 or D+. A new charmoniumlike state X*(3860) that decays to D (D) over bar is observed with a significance of 6.5 sigma. Its mass is (3862(-32)(+26) (+40)(-13) )MeV= c(2), and its width is (201(-67) (+154)(-82) (+88)) MeV. The J(PC) = 0(++) hypothesis is favored over the 2(++) hypothesis at the level of 2.5s. The analysis is based on the 980 fb(-1) data sample collected by the Belle detector at the asymmetric-energy e(+)e(-)collider KEKB.</P>

Resource allocation for device-to-device communications underlaying LTE-advanced networks

Phunchongharn, P.,Hossain, E.,Kim, D. I. IEEE 2013 IEEE wireless communications Vol.20 No.4

<P>The Long Term Evolution-Advanced (LTEAdvanced) networks are being developed to provide mobile broadband services for the fourth generation (4G) cellular wireless systems. Deviceto- device (D2D) communications is a promising technique to provide wireless peer-to-peer services and enhance spectrum utilization in the LTE-Advanced networks. In D2D communications, the user equipments (UEs) are allowed to directly communicate between each other by reusing the cellular resources rather than using uplink and downlink resources in the cellular mode when communicating via the base station. However, enabling D2D communications in a cellular network poses two major challenges. First, the interference caused to the cellular users by D2D devices could critically affect the performances of the cellular devices. Second, the minimum quality-of-service (QoS) requirements of D2D communications need to be guaranteed. In this article, we introduce a novel resource allocation scheme (i.e. joint resource block scheduling and power control) for D2D communications in LTE-Advanced networks to maximize the spectrum utilization while addressing the above challenges. First, an overview of LTE-Advanced networks, and architecture and signaling support for provisioning of D2D communications in these networks are described. Furthermore, research issues and the current state-of-the-art of D2D communications are discussed. Then, a resource allocation scheme based on a column generation method is proposed for D2D communications. The objective is to maximize the spectrum utilization by finding the minimum transmission length in terms of time slots for D2D links while protecting the cellular users from harmful interference and guaranteeing the QoS of D2D links. The performance of this scheme is evaluated through simulations.</P>

Characterization of Interface States in MOS Systems by Using Photonic High-Frequency Capacitance-Voltage Responses

S.J.Song,H.T.Kim,S.S.Chi,M.S.Kim,W.S.Chang,S.D.Cho,H.T.Shin,T.E.Kim,H.J.Kang,D.J.Kim,D.M.Kim 한국물리학회 2002 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.41 No.6

Based on the photonic high-frequency capacitance-voltage response of Metal-Oxide-Semiconductor capacitors, we report an improved characterization method for the analyzing of interface states in MOS systems. An optical source with a photonic energy $E_{ph}$ = 0.943 eV ($\lambda$ = 1314.5 nm) is employed for photonic deep-depletion (fast sweep rate) high-frequency Capacitance-Voltage (photonic DD HF-CV) characterization of interface states distributed in the photo-responsive energy band. Using the photonic DD HF-CV characterization, we obtained a U-shaped distribution of $D_{it}$ over ($E_V + E_g/2 - q\phi_f) < E_t < (E_V + E_g/2 - q\phi_f + q\phi_S$) for N-type Metal-Oxide-Semiconductor capacitors and ($E_C - E_g/2 - q\phi_f + q\phi_S) < E_t < (E_C - E_g/2 - q\phi_f$) for P-type Metal-Oxide-Semiconductor capacitors.

Potential roles of D-serine and serine racemase in experimental temporal lobe epilepsy

Ryu, H.J.,Kim, J.-E.,Yeo, S.-I.,Kim, D.-S.,Kwon, O.-S.,Choi, S.Y.,Kang, T.-C. Wiley Subscription Services, Inc., A Wiley Company 2010 Journal of neuroscience research Vol.88 No.11

<P>To confirm the roles of D-serinergic gliotransmission in epilepsy, we investigated the relationship between spatiotemporally specific glial responses and the D-serine/serine racemase system in mesial temporal structures following status epilepticus (SE). In control animals, D-serine and serine racemase immunoreactivities were detected mainly in astrocytes. After SE, D-serine and serine racemase immunoreactivities were increased in astrocytes. Double-immunofluorescence study revealed that up-regulation of serine racemase immunoreactivity was relevant not to D-serine immunoreactivity but to nestin or vimentin immunoreactivity. Neither D-serine nor serine racemase was found in naïve or reactive microglia. In addition, phosphorylated N-methyl-D-aspartate (NMDA) receptor subunit 1 (pNR1-Ser896) immunoreactivity in the hippocampus was increased compared with controls. Increased D-serine immunoreactivity showed direct correlation with the phosphorylation of Ser896 of NR1. Given the findings of our previous study, these findings suggest that D-serine and serine racemase in astrocytes may play roles in neuronal hyperexcitability via a cooperative activation of NMDA receptors. Furthermore, serine racemase may be involved in migration and differentiation of immature astrocytes, which is relevant to reactive astrogliosis. © 2010 Wiley-Liss, Inc.</P>

An upgrade of the magnetic diagnostic system of the DIII-D tokamak for non-axisymmetric measurements.

King, J D,Strait, E J,Boivin, R L,Taussig, D,Watkins, M G,Hanson, J M,Logan, N C,Paz-Soldan, C,Pace, D C,Shiraki, D,Lanctot, M J,La Haye, R J,Lao, L L,Battaglia, D J,Sontag, A C,Haskey, S R,Bak, J G American Institute of Physics 2014 Review of scientific instruments Vol.85 No.8

<P>The DIII-D tokamak magnetic diagnostic system [E. J. Strait, Rev. Sci. Instrum. 77, 023502 (2006)] has been upgraded to significantly expand the measurement of the plasma response to intrinsic and applied non-axisymmetric '3D' fields. The placement and design of 101 additional sensors allow resolution of toroidal mode numbers 1 n 3, and poloidal wavelengths smaller than MARS-F, IPEC, and VMEC magnetohydrodynamic model predictions. Small 3D perturbations, relative to the equilibrium field (10(-5) < δB/B0 < 10(-4)), require sub-millimeter fabrication and installation tolerances. This high precision is achieved using electrical discharge machined components, and alignment techniques employing rotary laser levels and a coordinate measurement machine. A 16-bit data acquisition system is used in conjunction with analog signal-processing to recover non-axisymmetric perturbations. Co-located radial and poloidal field measurements allow up to 14.2 cm spatial resolution of poloidal structures (plasma poloidal circumference is ~500 cm). The function of the new system is verified by comparing the rotating tearing mode structure, measured by 14 BP fluctuation sensors, with that measured by the upgraded B(R) saddle loop sensors after the mode locks to the vessel wall. The result is a nearly identical 2/1 helical eigenstructure in both cases.</P>

Survey of heating and current drive for K-DEMO

Mikkelsen, D.R.,Kessel, C.E.,Poli, F.M.,Bertelli, N.,Kim, K. International Atomic Energy Agency 2018 Nuclear fusion Vol.58 No.3

<P>We present calculations of heating and current drive by neutral injection and by electromagnetic waves in the ion cyclotron, helicon, lower hybrid, and electron cyclotron frequency ranges for the steady state burn conditions in a K-DEMO configuration with <img ALIGN='MIDDLE' ALT='$I_{\rm p}=12.3$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn001.gif'/> MA, <I>a</I>  =  2.1 m, <img ALIGN='MIDDLE' ALT='$R_{\rm o}=6.8$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn002.gif'/> m, <img ALIGN='MIDDLE' ALT='$B_{\rm o}=7.4$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn003.gif'/> T, <img ALIGN='MIDDLE' ALT='$ \newcommand{\nebar}{{\overline{n}_{\rm e}}} \nebar=1.1 \times 10^{20}$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn004.gif'/> m<SUP>−3</SUP>, <img ALIGN='MIDDLE' ALT='$T(0)=40$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn005.gif'/> keV, and <img ALIGN='MIDDLE' ALT='$Z_{\rm eff}=1.5$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn006.gif'/>. Lower hybrid wave current drive calculations comprise a 2D scan over poloidal launcher location and launched <img ALIGN='MIDDLE' ALT='$ \newcommand{\Nparallel}{{n_{\Vert}}} \Nparallel$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn007.gif'/>, at a fixed frequency of 5 GHz. An ICRF frequency scan over 50–100 MHz is based on an ITER-like ICRF midplane antenna; the absorption calculation includes thermal D, T, He, Ar, and W as well as suprathermal beam ions and alphas. Helicon fast wave performance is surveyed by varying frequency over 0.6–2.5 GHz, launched <img ALIGN='MIDDLE' ALT='$ \newcommand{\Nparallel}{{n_{\Vert}}} \Nparallel$ ' SRC='http://ej.iop.org/images/0029-5515/58/3/036014/nfaaa4d2ieqn008.gif'/> from  −1.6 to  −3, and launcher position from top to bottom on the low-field side. An ITER-like 1 MeV neutral beam system with quasi-tangential geometry is scanned over elevation to vary the targeted minor radius. The electron cyclotron survey varies the frequency (190–300 GHz), launcher poloidal location, and the poloidal and toroidal direction of the launched waves. We report for each system the range of minor radius in which current is driven, the current drive efficiency, the optimal system parameters, and typical profiles of driven current. Electron and ion heating profiles are reported for the ICRF and NBI systems.</P>

화력발전소의 대기오염물질 배출계수 산정 연구

김대곤,엄윤성,홍지형,이석조,석광설,이대균,이은정,방선애 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.3

The main purpose of this study was to characterize the air pollutants emission factors in electric power plant (EPP) using fossil fuels. The electric power plant is a major air pollution source, thus knowing the emission characteristics of electric power plant is very important to develop a control strategy. The major air pollutants of concern from EPP stacks are particulate matter (PM), sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO) and heavy metals. Throughout the study. the following results arc estimated: - PM : 8.671E-05∼8.724E+01 PM emission (kg) per fuel burned (ton) - SOx: 4.749E-04∼7.877E+01 SOx emission (kg) per fuel burned (ton) - NOx : 1.578E-02∼9.857E+00 NOx emission (kg) per fuel burned (ton) - CO : 3.800E-04∼1.291E+00 CO emission (kg) per fuel burned (ton) - Hg : 1.220E+01∼3.108E+02 Hg emission (mg) per fuel burned (ton) From the statistical analysis by Wilcoxon signed ranks test between the emission factors of ours and U.S. EPA's. we can yielded that: p > 0.05.

자외선 조사간격이 브로일러 병아리 다리 피부의 비타민 D3 함량에 미치는 영향

장윤환(Y . H . Chiang),조인호(I . H . Cho),여영수(Y . S . Yeoh),이은택(E .T . Lee),배은경(E . K . Bae),김중달(J . D . Kim),M . F . Holick(M . F . Holicka) 한국영양사료학회 1993 韓國營養飼料學會誌 Vol.17 No.6

NonChanges in Serum Vitamin E end Trace Mineral Levels and Other Blood Parameters in Growing Thoroughbred Horses During the Period of Pasture Grazing and Stable Feedin

Lee, C. E.,Park, N. K.,Jin, S. H.,Kim, Y. J.,Kang, D. H.,Kim, K. I. 한국동물자원과학회 2002 한국축산학회지 Vol.44 No.6

본 연구는 Thoroughbred 육성마에서 계절별 사양체계에 따른 혈청 비타민 E, 미량광물질 수준 및 혈액 화학치의 변화를 측정하기 위하여 수행되었다. 사사기간(이른 봄) 동안 50두의 육성마(암, 11∼14개월령)에게 농후사료(체중의 1.4%), 오챠드그라스 건초(0.62%)와 알팔파 건초(0.37%)를 급여하였다. 방목기간 동안 봄부터 초여름까지는 농추사료를 체중의 1.1% 보충급여 하였고 이 후 가을철 방목종료까지는 농후사료 1.1%와 알팔파 건초 0.5%를 급여하였다. 혈액을 이른 봄(사사기), 이른 여름 및 늦가을(방목기) 3회에 걸쳐 채취하였다. 방목사양은 혈청 비타민 E, 혈중 요소(BUN), GOT, GTP, T-bilirubin 및 D-bilirubin 함량을 증가 시켰다. (P<0.01). 혈청 Fe 및 Zn 함량은 가을 방목사양에서가 다른 사양체계에서 보다 높게 (P<0.01) 나타났다. Cu는 방목기간에 비해 사사기간 동안에 높았다(P<0.01). 혈중 glucose 및 creatinine 함량은 방목기간에 비해 사사기간에 높게 (P<0.01) 나타났다. 본 연구결과 말 혈청 비타민 E 및 미량광물질 함량과 각종 혈액 화학치는 사양체계 및 급여사료에 큰 차이가 있음을 보여주었다. 따라서 비타민이나 미량광물질의 추가 공급은 계절별 사양체계 또는 급여되고 있는 사료내 함량 및 이용성 등을 고려하여 이루어져야 할 것으로 사료된다. Nutritional adequacy of growing Thoroughbred horses raised in an alternate feeding system - grazing during late spring through late fall and stable feeding for the rest of seasons - was assessed by determining vitamin E and Trace mineral levels in the serum and blood chemistry related to nutrition and health. During the stable feeding in winter and early spring, 50 growing female horses were fed concentrates (1.4% of their body weight), grass hay (0.62%) and alfalfa hay (0.37%). For the grazing period, the same horses were fed supplementary concentrates (1.1%) during late spring through early summer, and concentrates (1.1%) and alfalfa hay (0.5%) during late summer through late fall. Blood samples were collected before grazing in early spring, and during grazing in early summer through late fall. Serum vitamin E, BUN, GTP, total bilirubin and direct bilirubin levels were increased (P<0.01) by grazing compared to those measured before the initiation of grazing. Horses had lower (P<0.01) serum Fe contents in early summer than in late fall or in time of stable feeding. Stable feeding increased (P<0.01) serum Cu content compared to grazing in both early summer and late fall. In late fall, serum Zn level increased (P<0.01) compared to that found in the other seasons. Blood glucose and creatinine levels decreased (P<0.01) after grazing. Results indicate that supplementations of some minerals and vitamin E are not always necessary in diets for growing horses and should be done after careful evaluation of diets with regard to concentrations and biological availability of minerals.