NIMBY or NIABY? Who defines a policy problem and why: Analysis of framing in radioactive waste disposal facility placement in South Korea

This paper applies discourse analysis to policies surrounding the siting of radioactive waste disposal facilities in South Korea. We question the premises of previous studies that define the radioactive waste disposal facilities decision outcomes in Korea as ‘repeated failures’. Instead, we suggest that underlying ideas and value systems surrounding the policy problem differ between supporting and opposing parties. In particular, our focus is on the ‘framing’ strategies manifest in policy discourse. Our analysis of newspaper articles shows that participants define and frame the policy issue in distinctive ways. Framing strategies include selective attention to, and naming of, the policy issues in the processes of frame articulation, amplification, extension and transformation. Overall, our analysis shows that framing analysis is a useful tool for understanding the policy decision‐making process from a different perspective than traditional policy analysis.     

水稻抽穗扬花期耐热性的QTL分析

培育高产稳产、对环境钝感的优质杂交稻新组合已成为当前水稻育种的重要目标;近年高温造成水稻结实率显著下降而导致产量的严重损失,水稻耐热性的改良也日益迫切。本研究用一个籼粳交重组自交系群体构建遗传连锁图谱,图谱拟合157个SSR标记位点,覆盖水稻基因组2352．62cM,标记间平均遗传距离14．89cM。以常温和高温结实率的差值作为耐热指数,采用复合区间作图法,对水稻抽穗扬花期的耐热性进行了QTL分析,在第2、3、5连锁群上检测到3个新的耐热QTL。贡献率为：6．59％、10．72％和10．7％,联合贡献率为28．01％。     

我国数控机床的现状及发展趋势

论述我国数控机床发展的过程与现状,对数控机床的发展趋势进行了探讨,提出了我国数控机床发展的对策。     

Estimation of design water requirement using FAO Penman–Monteith and optimal probability distribution function in South Korea

Estimation of the design water requirement (DWR) is a key part of design and operation of agricultural water resource systems. DWR is determined from frequency analysis of crop water requirement, and the reference return period has been 10 years in South Korea. This study aimed to propose a guideline for determining DWR using Food and Agriculture Organization (FAO) Penman–Monteith method and optimal probability distribution function (PDF). To find an optimal PDF, nine types of PDF were tested using the Kolmogorov–Smirnov (K–S) and Probability Plot Correlation Coefficient (PPCC) goodness-of-fit methods. From the test, the Generalized Logistic (GLO) was selected and DWRs were estimated using the chosen optimal PDF. To demonstrate the DWR differences among the PDFs, DWR and drought reference design year were compared for the three selected PDFs, GLO, Generalized Extreme Values (GEV) and Weibull (WBU). The results would effect on the design and operation of the agricultural water resources structures in terms of capacity and capability in South Korea.     

保护地桃花芽分化观察

2000年6月到10月对保护地桃品种早醒艳桃的花芽进行取材,采用扫描电镜技术和制作石蜡切片系统地研究了保护地桃花芽分化的过程。结果表明：保护地桃花芽分化时间从7月中旬到9月下旬,7月末到9月中旬是早醒艳桃花芽集中分化期。研究发现花芽分化与温度、不同类型枝条、同一枝条不同节位以及营养物质积累有密切关系。     

Hydrophilic modification of PET fabric via continuous photografting of acrylic acid (AA) and hydroxyethyl methacrylate (HEMA)

Poly(acrylic acid) and poly(hydroxyethyl methacrylate) were introduced onto PET fabrics by UV-induced photografting to improve its hydrophilicity. Several factors affecting the photografting were studied including irradiation energy, monomer, and photoinitiator (PI) concentrations. ATR and ESCA analyses proved successful grafting of the two monomers onto PET. Morphology of fabric surface was examined using FE-SEM. Both zeta potential and water wetting time of the grafted PET fabrics decreased with increasing grafting yield. Also cationic dyeability of the grafted PET fabrics increased because of the increased electrostatic interactions between the anionic dyeing sites and cationic dyes.     

Thyroid hormone‐induced swim bladder and eye maturation are transduced by IGF‐1 in zebrafish embryos

Maternally derived thyroid hormones (THs) deposited in yolk promote fish embryogenesis and survival, and understanding early regulatory mechanisms could lead to improved seedstock production. We have tested the hypothesis that some thyroid actions may be mediated by insulin‐like growth factor I (IGF‐1), another promoter of embryo development. Differentiation and performance were assessed in embryos treated with THs in the presence or absence of an IGF‐1 receptor blocking peptide. Treatment with the TH triiodothyronine (T₃) promoted IGF‐1 gene expression at days 1 and 5, and advanced swim bladder and eye development, but blocking the IGF‐1 receptor eliminated the swim bladder and eye effects. Growth and survival at 1 week of age were impaired by the IGF‐1 receptor blocking peptide alone, but concurrent treatment with T₃ partially restored these indices. Our results confirm interaction of T₃ and IGF‐1 regulatory signalling in zebrafish embryogenesis and transduction by IGF‐1 of thyroid‐driven swim bladder and eye maturation.     

Dietary lipid requirement of whiteleg shrimp Litopenaeus vannamei juveniles cultured in biofloc system

An eight‐week feeding trial was conducted to evaluate the contribution of biofloc on dietary lipid requirement in whiteleg shrimp Litopenaeus vannamei. Five diets with graded levels of dietary lipid (45, 60, 90, 120 and 150 g/kg) were fed to juvenile shrimp. Final weight, weight gain and specific growth rate of shrimp fed diets with 60, 90 and 120 g/kg lipid levels were significantly higher than those of shrimp fed diets with lipid levels 45 and 150 g/kg (p < .05). Feed efficiency and protein efficiency ratio of shrimp fed 60, 90 and 120 g/kg were higher than those fed 150 g/kg diet. Plasma total cholesterol and triglyceride levels were lower in shrimp fed 45 g/kg compared with those fed the 90 g/kg (p < .05). Also, lysozyme activity for 90 g/kg group was higher than the 15 g/kg group. Hepatopancreas lipase and amylase activities of shrimp fed 90 and 120 g/kg diets were significantly higher than those of shrimp fed 45 and 150 g/kg diets. Broken‐line regression analysis for weight gain indicated that the dietary lipid requirement of whiteleg shrimp juveniles reared in a biofloc system was estimated to be higher than 56 g/kg but <60 g/kg.     

Substitution effect of sea tangle (ST) (Laminaria japonica) with tunic of sea squirt (SS) (Halocynthia roretzi) in diet on growth and carcass composition of juvenile abalone (Haliotis discus,Reeve 1846)

Substitution effect of sea tangle (ST) with tunic of sea squirt (SS) in diet on growth and carcass composition of juvenile abalone was determined. One thousand four hundred and seventy abalones were distributed into 21 containers. Six formulated diets in triplicate were prepared. A 200 g/kg ST was included into the ST0 diet. The 200, 400, 600, 800 and 1000 g/kg of ST were substituted with the same amount of tunic of SS, referred to as the ST200, ST400, ST600, ST800 and ST1000 diets, respectively. Finally, Undaria was prepared to compare effect of the formulated diets on performance of abalone. The experimental diets were fed to abalone for 16 weeks. Weight gain of abalone fed the ST400 diet was higher than that of abalone fed the ST0, ST600, ST800 and ST1000 diets and Undaria. Weight gain of abalone fed the formulated diets was higher than that of abalone fed the Undaria. The chemical composition of the carcass of abalone was affected by dietary substitution of ST with tunic of SS. In conclusion, ST could be completely substituted with tunic of SS without retardation in performance of abalone. Abalone fed the ST400 diet substituting 400 g/kg ST with tunic of SS achieved the best growth.     

冰下保温涡流增氧机的研究

涡流增氧机是解决越冬鱼池增氧的专用设备，结构新颖，体积小，工效高，且制造简单、操作容易。由于采用涡流原理，叶轮工作时能自由吸由外界大气中直接补氧。被吸空气经机内加热，呈温暖之细气泡进入水体，可达到增氧和避免水温下降的双重效果。