管道防腐层检测技术在油田生产中的应用

叙述了管道防腐层检测技术的应用水平及发展该技术的重要性，介绍了三种管道防腐层检测方法，即多频管中电流法，地面电位电场法和管地电位法，针对河口采油厂7条油，气，水，管道腐蚀严重的状况，采用多频管中电流法对管道进行了腐蚀层综合评价，提出了管道合理防腐大修方案。     

具有温度约束的设备双层保温经济厚度计算

对于设备保温而言，两层保温材料夹缝处的温度即为外层保温的最大可能使用温度，而该蔡同时受到内，外层保温材料厚度变化的影响。为得到双层保温材料的经济厚度，就要合理调整内，外层保温材料厚度，根据传热学原理，建立了具有温度约束时的双层保温最优化目标函数和约束条件，采和内部惩罚函数法对约束最优化问题进行了求解。     

埋地钢质管道补口材料的失效分析

通过案例分析和研究调查，提出埋地管道补口材料的早期失效是影响管道外防腐层完整性的主要形式。对管道外防腐层补口材料失效的原因进行了分析，指出补口材料施工工艺复杂、现场施工难度高导致了补口材料失效。根据各种防腐涂料的不同性能和应用条件，提出了管道补口材料的选用应注意的问题。     

Effects of supplementation of coated crystalline amino acids on growth performance and body composition of juvenile kuruma shrimp Marsupenaeus japonicus

Supplementation of crystalline amino acids (CAA) in shrimp diets is unsuccessful in most cases. In the present study, various pre‐coated CAA were developed to minimize the leaching losses from diets in water and assessed using kuruma shrimp Marsupenaeus japonicus juveniles. Experimental diets were supplemented with coated CAA or non‐coated CAA to simulate the dietary amino acid profile to that found in the whole body protein of shrimp. The four diets contained CAA coated with either carboxymethyl cellulose (CMC) (diet 1), zein (diet 2), k‐carrageenan (diet 3) or agar (diet 4), respectively. Another four diets contained CMC‐coated CAA with the addition of either zein (diet 5), casein‐gelatin (diet 6), zein and k‐carrageenan (diet 7), or casein‐gelatin and k‐carrageenan (diet 8), respectively. The 8 weeks feeding trial demonstrated that the diets containing coated CAA gave significantly higher weight gains than diets containing non‐coated CAA, with the highest value for the diet 6. The diets containing coated CAA also yielded higher feed conversion efficiency, protein efficiency ratio, and specific growth rate than diets containing non‐coated CAA. Leaching trials suggested that shrimp growth performance was improved partly due to the retardation or reduction of CAA leaching by coating them with specific binders.     

60％吡虫啉SC种衣剂拌种对水稻苗期虫害的防治效果及秧苗素质的影响

[目的]研究60％吡虫啉sc种衣剂拌种对水稻苗期害虫的防治效果及秧苗素质的影响。[方法]设4个处理,于水稻秧田期进行拌种处理。[结果表明]60％吡虫啉Sc种衣剂对秧田灰飞虱和蓟马具有较好的防治效果,lkg稻种拌60％吡虫啉sc种衣剂5ml对灰飞虱揭膜后20d的防效在85．51％,对蓟马的防效在90％以上,控制期长达30d以上,且对水稻秧苗素质的提高有明显作用。[结论]60％吡虫啉sc种衣荆是秧田期控制灰飞虱和蓟马为害的理想药剂。     

不同药剂·方法和时间浸种对水稻恶苗病的防治效果

[目的]研究不同药剂、方法和时间浸种对水稻恶苗病的防治效果.[方法]选择生产上常用及目前新上市的几种药剂,采取不同方式、时间等进行试验,以明确最佳药剂及处理方式.[结果]咪氰烯菌脂及其复配剂防效优异,浸种方法、时间与效果无明显相关性.咪鲜·杀螟丹日浸夜露法优于连续浸种法;24～60 h浸种时间延长,秧田期防效有升高趋势,但分蘖和灌浆期不明显.亮盾、适乐时与锐胜混用拌种,前期防效较高,但灌浆期（后期）效果下降.杀螟·乙蒜素防效一般.[结论]氰烯菌酯及其复配剂效果表现优异.     

氢氧化铝改性丙烯酸酯乳液胶黏剂及阻燃性能研究

采用机械共混方式获得Al(OH)3改性丙烯酸酯乳液胶黏剂,研究了分散剂种类及用量、增稠剂用量和Al(OH)3用量对胶黏剂基本性能和流体力学性能的影响。结果表明,在分散剂六偏磷酸钠(SHMP)用量为0.35%、增稠剂羟乙基纤维素(HEC)用量为0.20%和阻燃剂Al(OH)3用量为30%时,改性后丙烯酸酯乳液胶黏剂的性能较好,黏度为1 360 m Pa·s,p H值为5.45,贮存30天后稳定性较好,氧指数达到32;流体力学性能研究表明乳液体系为非牛顿假塑性流体弹性体系。阻燃性能研究表明Al(OH)3改性后丙烯酸酯乳液胶黏剂的热释放速率和烟释放量大大降低,CO生成量降低50%以上,引燃时间由60 s延长至77 s,热释放速率峰值由528 k W/m2降为165 k W/m2,燃烧速率为明显减缓(80 s至110 s),质量损失速率明显降低,有较好的阻燃性。     

土壤调理剂显效水分阈值试验研究

在不同土壤水分条件下,研究不同剂型土壤调理剂对玉米、大豆和黑麦草出苗的影响,找出土壤调理剂作种子包衣的显效土壤水分阈值,为发挥土壤调理剂的抗旱保苗功效提供依据。     

Effects of coated hatching eggs obtained from old broiler breeders with chitosan on embryonic growth,hatching results and chick quality

The aim of this research was to determine the effects of coating broiler hatching eggs with chitosan on egg quality, embryonic growth, hatching results and chick quality. Eggs obtained from old broiler breeder, aged 59 weeks, were used. Eggs were divided into two groups (coated with chitosan and uncoated) groups. Each group was divided into three groups according to the storage period. Eggs were stored for periods of 1, 4 and 7 days at 15°C and 80% humidity. Then, they were incubated. Storage period of eggs up to 7 days did not affect the egg quality, egg weight loss, embryo growth, chick properties and hatchability of fertile eggs. However, embryo development, relative residual yolk sac weight and relative chick weight were affected by coating eggs with chitosan. Interaction was not found between storage lengths and coating of eggs with chitosan for all examined parameters. The results of the present study suggested that hatching eggs obtained from old broiler breeder flocks were immersed into chitosan solution once and quickly have negative effect on the embryo weight, yolk sac absorption and relative chick weight. It has been observed that covering the hatching eggs with chitosan is not suitable in this respect even if immersion takes place once and in a short time.     

新型环保种衣剂促进刺槐种子生长的实验研究

将一种以天然高分子多糖为主要成分的环保型种衣剂用于刺槐种子包衣,取得了良好的效果。试验结果表明,经该种衣剂包衣后刺槐树种的发芽势、发芽率及幼苗生长量等指标均明显优于未包衣的空白种子或传统有毒的种衣剂,与其相比,种子发芽率分别提高了6%和10%。当包衣处理时的药种比控制在1：50,种衣剂中天然高分子多糖的含量为3.5%时...