• 한국가금학회지
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• 제50권3호
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• pp.119-124
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• 2023

본 연구는 산란후기 '우리맛닭' 종계의 사료 내 ME 수준이 체중, 산란율, 종란품질 및 부화율에 미치는 영향을 조사하기 위해 수행되었다. 48주령 '우리맛닭' 종계 암탉 80수를 개별 케이지에 분배한 후 16주간 사양실험을 실시하였다. 처리구는 두 가지 수준의 ME(2,500 kcal/kg, 2,700 kcal/kg)사료를 4반복과 반복 당 10수씩 배치하여 급여하였다. 본 연구결과, 종계의 체중과 사료섭취량은 ME의 수준에 따른 통계적 차이가 없었다. 48~52주령의 종계는 2,500 kcal/kg 처리구에서 2,700 kcal/kg 처리구보다 개선된 산란율을 나타냈다(P<0.05). 그러나 52~64주령의 종계에서는 처리구 간 유의적 차이가 없었다. 종란의 난중, 난각두께 및 난각강도는 처리구 간에 차이가 나타나지 않았다. 종란의 수정률과 부화율은 ME 수준에 따른 차이를 보이지 않았다. 결론적으로 산란후기 '우리맛닭' 종계의 ME 수준을 2,500 kcal/kg으로 낮추어도 생산성 측면에서 에너지 요구량을 충족시킬 것으로 판단된다.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2007년도 학술대회
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• pp.401-403
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• 2007

⇒ 초록(영문) 입력자 : This document defines JSR298 Telematics API for Java ME. The main purpose of JSR298 is to be able to provide automotive telematics services through use of this specification on embedded devices that are using Java ME platform. The goal is to standardize specification in order to provide automotive telematics services using embedded devices with Java ME as their base platform. This specification defines methods for controlling and obtaining diagnostic information and conditions on various components built in to the vehicle. Therefore, this document will provide specifications required for controlling various equipments built into the vehicles as well as obtaining diagnostic information on these components and vehicle conditions. Automotive components are defined as equipments that are accessible for drivers including airbag, door, window, and brake. This specification is applicable to telematics-specific automotive terminals as well as other various portable devices including cellular phones and PDAs.

• Journal of Advanced Marine Engineering and Technology
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• 제32권3호
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• pp.421-429
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• 2008

Various kinds of ship are operated to transport cargo or passengers at sea in the world. Most of the important auxiliary machineries installed in those ships are fluid machineries such as pumps, compressors, and fans. A large percentage of fluid machinery is pumps which are classified turbo and positive displacement pumps. This paper analyzes only positive displacement pumps. This thesis has two aims: (a) to analyze the present status of pumps installed in merchant and training ships and (b) to find the correlation among sea going pump kW, port pump kW, total pump kW, GE kW, ME MCR, number of pumps, ME kgf, pump kgf. Based on ship's type, this paper seeks to find special characteristics as a result of analyzing head, flow rate, and kW. Moreover this paper analyzes and compares number of pumps, pump kW/ME MCR, pump kW/GE kW under the conditions of seagoing and berthing according to ship's type.

• Communications for Statistical Applications and Methods
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• 제12권2호
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• pp.285-294
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• 2005

This paper deals with the comparison of parameter estimation methods in a 3-parameter Kappa distribution which is sometimes used in flood frequency analysis. Method of moment estimation(MME), L-moment estimation(L-ME), and maximum likelihood estimation(MLE) are applied to estimate three parameters. The performance of these methods are compared by Monte-carlo simulations. Especially for computing MME and L-ME, three dimensional nonlinear equations are simplified to one dimensional equation which is calculated by the Newton-Raphson iteration under constraint. Based on the criterion of the mean squared error, L-ME (or MME) is recommended to use for small sample size( n$\le$100) while MLE is good for large sample size.

• Bulletin of the Korean Chemical Society
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• 제16권6호
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• pp.518-523
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• 1995

New square planar nickel(Ⅱ) complexes with various 1-alkyl (4a-4c) and 1-hydroxyalkyl (4d-4f) derivatives of the 14-membered pentaaza macrocycle 8-ethyl-8-nitro-1,3,6,10,13-pentaazacyclotetradecane have been synthesized by two-step metal template condensation reactions of ethylenediamine, nitroethane, formaldehyde, and appropriate primary amines. The nitro group and/or hydroxyl group of 4a-4f are not directly involved in the coordination. The nickel(Ⅱ) complexes exist in coordinating solvents such as MeCN, Me2SO, and H2O as equilibrium mixtures of the square planar [Ni(L)]2+(L=4a-4f) and octahedral species [Ni(L)S2]2+(S=solvent molecule). Although the ligand field strength and redox potentials of the complexes are not affected by the nature of the substituents, the formation of octahedral species for 4d-4f in MeCN is strongly restricted by the hydroxyl group. Synthesis, characterization, and solution behaviors of the nickel(Ⅱ) complexes are described.

• Nuclear Engineering and Technology
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• 제55권5호
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• pp.1559-1566
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• 2023

This study developed a quasi-monoenergetic neutron source (QMN) for the semiconductor device's soft error rate test (SER). Quasi-monoenergetic neutrons are generated by ⁹Be(p, n)⁹B nuclear reaction with a 1 mm beryllium target and 30 MeV protons from a cyclotron. An 8 mm water in the back of the beryllium target is used for avoiding proton penetration. The neutron spectra simulated by MCNP showed that the peak energy was around 26.5 MeV. The heat flow and mechanical properties are numerically analyzed, and the safe operating conditions are therefore determined.

• Journal of Advanced Marine Engineering and Technology
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• 제32권7호
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• pp.1051-1060
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• 2008

Now days, various types of ships are operated to transport both cargo and passengers all around the world. Most of the important auxiliary machinery installed in those ships is fluid machinery such as pumps, compressors, and fans. A large percentage of fluid machinery is pumps which are classified as turbo and positive displacement pumps. This paper analyzes only turbo pumps out of the two types. This thesis has two aims: (a) to analyze the present status of pumps installed in merchant and training ships and (b) to find the correlation among sea going pump kW, port pump kW, GE kW, ME MCR, number of pumps, ME kgf, pump kgf. Based on the ship's type, my paper seeks to find special characteristics as a result of analyzing head, flow rate, and kW. Moreover this paper analyzes and compares number of pumps, rpm of pumps, pump kW/ME MCR and pump kW/GE kW under the conditions of seagoing and berthing according to the ship's type. In conclusion, (1) For the exact comparison, information on the head, kW, flow rate, number of pumps by ship's type, the pump installation status of the Merchant Ships and Training Ships were tabulated and compared in this paper. (2) In order to qualify one ship as the delegate ship, several methods were used. The result of the examination indicates that the chosen ships could be justified as a suitable representation of ships of their own type. (3) The correlation of several values(total pump kW, port pump kW, GE kW, seagoing pump kW, pump weight, ME weight, ME MCR, number of pumps and ME kW) could be obtained.

• 한국진공학회지
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• 제6권3호
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• pp.249-254
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• 1997

Fe가 첨가된 반절연성 InP(100)의 특성을 photoreflectance(R) 측정으로 조사하였다. 관측한 PR 신호로부터 300K에서 띠간격 에너지($E_o$)와 넓어지기 변수(broadening parameter:$\Gamma$)는 각각 1.336eV 및 11.2meV의 값을 얻었다. 측정온도를 300~80K로 낮춤에 따라 PR 신호는 엑시톤과 2차원의 띠사이 전이가 중첩된 형태(300K)에서 전형적인 엑시톤 에 의한 전이형태(80K)로 변함을 알았다. 또한 Varshni 계수 $\alpha=-0.94\pm$0.07meV/K, $\beta=587\pm$35.2K와 Bose-Einstein 계수 aB=33.6$\pm$2.02meV, $\theta=165\pm$33K의 값을 얻었다. 그리고 등온 및 등시 열처리를 수행한 후 측정 결과, 온도 $300^{\circ}C$에서 10~20분 정도 열처리시켰을 때 InP 시료의 결정성이 가장 좋아짐을 정성적으로 알 수 있었다.

• 자원ㆍ환경경제연구
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• 제26권4호
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• pp.613-639
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• 2017

카리브호수의 카펜타 자원량을 추정하기 위해 최대엔트로피(ME)모델과 분석적 모델이 적용된다. ME모델을 이용하여 25,372톤의 최대지속가능 어획량(MSY)과 MSY의 어획노력량인 109,731의 어획일수(fishing nights)를 추정하였는데, 이는 현재 어획노력량 수준이 과잉투자됨으로써 1988년 이후 2009년 현재까지 자원량을 감소시키는 요인인 것을 나타낸다. 분석적 모델은 매년의 생물학적 허용 어획량(ABC)과 연간 1.21의 어획사망계수(일반적 어획사망계수인 0.927 보다 큰)를 추정한다. 이 두 모델은 1982년 기준년도의 자원량 추정에 적용할 수 있는 유사한 자원량을 추정한다. ME모델에 의하면 1988년의 최대 자원량(156,047톤)에 대해 1/3수준이하 까지 점점 하락하는 결과를 추정하였는데, 이는 최근의 어획량이 MSY 수준 이하이지만 ABC수준보다 높게 나타나 남획된 것을 암시한다. 다시 말해서, 분석적 모델은 ME모델에서의 MSY보다 더 보수적인 ABC를 제공함으로써, 보수적인 어업관리정책(총허용어획량제도, 어획노력감소정책 등)을 적극적으로 고려해야함을 내포하고 있다.

• 대한음성학회지:말소리
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• 제64호
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• pp.89-103
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• 2007

In this paper, we introduce mel-cepstrum modulation energy (MCME) for a feature to discriminate speech and music data. MCME is a mel-cepstrum domain extension of modulation energy (ME). MCME is extracted on the time trajectory of Mel-frequency cepstral coefficients, while ME is based on the spectrum. As cepstral coefficients are mutually uncorrelated, we expect the MCME to perform better than the ME. To find out the best modulation frequency for MCME, we perform experiments with 4 Hz to 20 Hz modulation frequency. To show effectiveness of the proposed feature, MCME, we compare the discrimination accuracy with the results obtained from the ME and the cepstral flux.