• 한국지능시스템학회:학술대회논문집
• /
• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
• /
• pp.915-916
• /
• 1993

In this paper, the fuzzy ISODATA algorithm is applied to forecasting liquefaction of sand in the antiseismic structures. According to the data of the earthquake taken place in Tang Shan in 1976, we construct a model of mathematics, on which we forecast 32 samples in the earthquake of Tang Shan. The correct rate of forecast is 90.7 %.

• Parasites, Hosts and Diseases
• /
• 제52권3호
• /
• pp.251-256
• /
• 2014

A novel recombinant Bacille Calmette-Guerin (rBCG) vaccine co-expressed Eimeria tenella rhomboid and cytokine chicken IL-2 (chIL-2) was constructed, and its efficacy against E. tenella challenge was observed. The rhomboid gene of E. tenella and chIL-2 gene were subcloned into integrative expression vector pMV361, producing vaccines rBCG pMV361-rho and pMV361-rho-IL2. Animal experiment via intranasal and subcutaneous route in chickens was carried out to evaluate the immune efficacy of the vaccines. The results indicated that these rBCG vaccines could obviously alleviate cacal lesions and oocyst output. Intranasal immunization with pMV361-rho and pMV361-rho-IL2 elicited better protective immunity against E. tenella than subcutaneous immunization. Splenocytes from chickens immunized with either rBCG pMV361-rho and pMV361-rho-IL2 had increased $CD4^+$ and $CD8^+$ cell production. Our data indicate recombinant BCG is able to impart partial protection against E. tenella challenge and co-expression of cytokine with antigen was an effective strategy to improve vaccine immunity.

• 정보보호학회논문지
• /
• 제33권2호
• /
• pp.325-336
• /
• 2023

자율주행 기술이 발전함에 따라 차량에 탑재되는 외부접점 센서의 수가 증가하고 있으며 특히 차량용 초음파 센서는 버스 토폴로지 형태로서 LIN 프로토콜을 사용하여 연결되며 주변을 감지하고 상태 메시지를 전송하여 차량 내부 네트워크에 접근한다. LIN은 프로토콜의 보안성이 검증되지 않아 공격에 취약하기 때문에 안전성을 평가하기 위한 테스트가 필요하지만, 물리적인 제약으로 인해 실제 차량을 이용한 분석에 한계가 있으며 이를 위한 테스트 환경이 부족하기 때문에 테스트에 어려움이 있다. 따라서, 본 논문에서는 LIN 프로토콜 분석 및 테스트를 위해 CAN과의 연동 분석이 가능한 테스트베드를 개발하고 초음파 센서를 이용하여 그 효용성을 검증하였다.

• Korean Journal of Radiology
• /
• 제24권11호
• /
• pp.1046-1048
• /
• 2023

• 혜화의학회지
• /
• 제16권2호
• /
• pp.121-130
• /
• 2007

In oriental medicine, there is the fundamentals to lead a stirring life, and it is an important matter that make a study of fundamentals for treatment. The su-wen(素問) mentions the fundamentals of sheng(生之本), the fundamentals of qi(氣之本), the fundamentals of feng-cang(封藏之本), the fundamentals of ba-ji(罷極之本) and the fundamentals of cang-lin(倉廩之本). They are terminologies expressing physiological functions of the five viscera - heart, lungs, kidneys, liver and spleen. The five viscera are expressed through face, fur, hair, nail and lips. And the five viscera are closely connected with blood, skin, bone, muscle and flesh. Through the changes of personal appearance, we can recognize those of their internal organs. In oriental medicine, they are called as the cang-xiang(藏象). Heart is the fundamentals of sheng(生), and it is related to spirit, blood and blood vessel. Lungs are the fundamentals of qi(氣), because they master the extensive meaning of qi(氣). Kidneys are the fundamentals of feng-cang(封藏) which means seclusion. Liver is the fundamentals of ba-ji(罷極) that have several view by concept. Spleen, stomach, large and small intestines, paunch and bladder are the fundamentals of cang-lin(倉廩), that is to say, gastrointestinal tract that ingest diet and digest it.

• Asian-Australasian Journal of Animal Sciences
• /
• 제21권7호
• /
• pp.1003-1010
• /
• 2008

The objective of the present study was to identify differences in the expression levels of liver proteins between healthy and ketotic cows, establish a liver metabolic interrelationship of ketosis and elucidate the metabolic characteristics of the liver during ketosis. Liver samples from 8 healthy multiparous Hostein cows and 8 ketotic cows were pooled by health status and the proteins were separated by two-dimensional-electrophoresis (2D-E). Statistical analysis of gels was performed using PDQuest software 8.0. The differences in the expression levels of liver proteins (p<0.05) between ketotic and healthy cows were identified by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF-TOF) tandem mass spectrometry. Five enzymes/proteins were identified as being differentially expressed in the livers of ketotic cows: expression of 3-hydroxyacyl-CoA dehydrogenase type-2 (HCDH), acetyl-coenzyme A acetyltransferase 2 (ACAT) and elongation factor Tu (EF-Tu) were down-regulated, whereas that of alpha-enolase and creatine kinase were up-regulated. On the basis of this evidence, it could be presumed that the decreased expression of HCDH, which is caused by high concentrations of acetyl-CoA in hepatic cells, in the livers of ketotic cows, implies reduced fatty acid ??oxidation. The resultant high concentrations of acetyl-CoA and acetoacetyl CoA would depress the level of ACAT and generate more ??hydroxybutyric acid; high concentrations of acetyl-CoA would also accelerate the Krebs Cycle and produce more ATP, which is stored as phosphocreatine, as a consequence of increased expression of creatine kinase. The low expression level of elongation factor Tu in the livers of ketotic cows indicates decreased levels of protein synthesis due to the limited availability of amino acids, because the most glucogenic amino acids sustain the glyconeogenesis pathway; thus increasing the level of alpha-enolase. Decreased protein synthesis also promotes the conversion of amino acids to oxaloacetate, which drives the Krebs Cycle under conditions of high levels of acetyl-CoA. It is concluded that the livers of ketotic cows possess high concentrations of acetyl-CoA, which through negative feedback inhibited fatty acid oxidation; show decreased fatty acid oxidation, ketogenesis and protein synthesis; and increased gluconeogenesis and energy production.

• 한국지역지리학회지
• /
• 제15권6호
• /
• pp.720-735
• /
• 2009

본 연구에서는 중국 지린(吉林)시 쟝베이(江北) 화학공업단지를 사례로 개혁개방 이후의 산업재구조화 과정의 특성을 기업조직, 생산방식, 노동력, 제품시장에 초점을 두고 고찰하였다. 지린시 화학공업 기업의 기업조직 재구조화는 2001년 이후부터 본격적으로 기업체 간 하청과 협력관계가 증가하였고, 협력기관의 유형에 있어서 연구소와 지방정부가 가장 큰 비중을 차지하였으며, 협력내용은 제품 및 공동기술개발 협력이 가장 높은 비중을 차지하였다. 생산방식의 재구조화는 2007년 현재 여전히 포디즘 생산방식인 소품종 대량생산 방식을 채택하는 기업체 비중이 가장 높다. 중국이 WTO에 가입한 후 지린시 화학공업기업이 생산체제 전환과정에서 채택한 기업의 대응 전략으로는 생산기술에 대한 투자확대가 중심이며 생산기술 변화에 대한 기업전략은 생산설비의 개선과 신제품개발이 중심이다. 노동력 재구조화 전략은 노동조직 면에서 근로자 재교육의 실시가 가장 높게 나타났고, 노사관계에 있어서는 노동자에 대한 직무 수행 능력을 평가하는 기업이 증가하는 추세이다. 제품시장 산업 재구조화 측면에서는 내수 시장판매가 큰 비중을 차지한 반면에 수출이 다소 미약한 것으로 나타났고, 업체들이 품질개선을 통한 고부가가치화로 제품시장변화에 대응하는 전략이 중심이 되고 있으나 생산제품 및 시장다변화 등 다양한 전략으로 수요환경 변화에 대응하고 있는 것으로 나타났다.

• 한국대기환경학회:학술대회논문집
• /
• 한국대기환경학회 2004년도 춘계학술대회 논문집
• /
• pp.194-196
• /
• 2004

• Bulletin of the Korean Chemical Society
• /
• 제23권6호
• /
• pp.899-903
• /
• 2002

• International Journal of Aeronautical and Space Sciences
• /
• 제18권4호
• /
• pp.697-708
• /
• 2017

The complex battlefield environment makes it difficult to intercept maneuvering targets for guided missiles. In this paper, a finite-time convergent (FTC) guidance law based on the second-order sliding mode (SOSM) control theory is proposed to achieve the requirements of stability, accuracy and robustness. More specifically, a second-order sliding mode observer (SMOB) is used to estimate and compensate for the total disturbance of the controlled system, while the target acceleration is extracted from the line-of-sight (LOS) angle measurement. The proposed guidance law can drive the LOS angular rate converge to zero in a finite time, which means that the missile will accurately intercept the target. Numerical simulations with some comparisons are performed to demonstrate the superiority of the proposed guidance law.