挖掘机器人控制系统CAN总线接口

根据挖掘机器人控制系统的设计特点，采用基于CAN总线通信的多控制主体结构方案，实现了单片机CAN总线接口硬件和软件的设计。     

汉江水体和沉积物中噬菌体特征研究

基于2014年3月和10月汉江中下游6个断面的水体和沉积物监测样品,获得384个高质量vOTUs(viralOperationalTaxonomicUnits)。研究表明,vOTUs中95%以上隶属Caudovirales (有尾噬菌体目),丰度居前3位的科分别为Myoviridae (肌尾噬菌体科)、Siphoviridae (长尾噬菌体科)和Podoviridae(短尾噬菌体科)。主坐标分析和相似性分析结果表明,沉积物中病毒群落结构相对稳定,而水体中群落易随季节发生变化,同流域的水体和沉积物中群落可能具有连通性。宿主来自2域(界) 19门,丰度最高的宿主是Proteobacteria门(变形菌门)。88%的vOTUs具有单一的门水平的宿主,有3个vOTUs跨越5个门。跨域(界)感染的vOTUs在感染古菌界Thermoproteota门的同时,最常见的是感染细菌界的Bacteroidota门(拟杆菌门)。与水体相比,沉积物中宿主的群落组成更加多样。Pearson相关分析表明,噬菌体与其宿主的组成在门水平上一致。     

晶种煅烧同时掺加复合矿化剂对3CaO·SiO2［C3S］生成的影响

讨论了掺加晶种的生料在煅烧过程中Ｃ３Ｓ生成的热力学和动力学，并分析了在掺加晶种的生料中再掺加复合矿化剂对Ｃ３Ｓ生成速度和生成量的影响     

湘西五倍子蚜虫冬寄主藓类植物的筛选与人工培植

作者通过几年来所作的植藓养蚜实验及其效果的调查分析,确定并筛选出一批适合本地在生产上推广使用的冬寄主藓种,以及适于不同冬寄主藓的不同的植藓养蚜方法,并在实践的基础上总结出植藓养蚜的生态法则,认为冬寄主藓的载蚜效果,不仅与藓种本身有关,而且受藓的生长情况,生境中诸多环境因子的控制,因此植藓养蚜时必须选择或创造适于藓的生长同时又能满足虫子寄生对生态条件要求的环境,这样才能取得较好的效果.     

Avoidance of competition by spruce bark beetles,Ips typographus andPityogenes chalcographus

Bark beetles,Ips typographus andPityogenes chalcographus, attracted by synthetic or natural pheromone to Norway spruce logs,Picea abies, preferred to colonize uninfested logs rather than logs occupied by these beetles, probably as a means of avoiding intra-and interspecific competition. The aggregation pheromone components ofP. chalcographus, chalcogran and methyl (E, Z)-2,4-decadienoate, inhibited the attraction response ofI. typographus to its pheromone components (methyl butenol andcis-verbenol), while the converse was not true. However, verbenone released from colonized bark inhibited pheromonal response ofP. chalcographus.     

新疆哈密瓜叶枯病及防治的研究

哈密瓜叶枯病是我国哈密瓜生产中的新病害,一般发病率80—100％,病情指数30—100,直接危害着哈密瓜的生产。该病以为害叶片为主,造成叶斑,严重者可使叶片枯焦。经鉴定该病系Alternaria cucumerina侵染所致,该菌主要在病残内越冬,以分生孢子侵染寄主,发病适温25—33℃,潜育期3—4天,借气流传播,一般7月中旬至8月中旬雨水次数多或灌水多,病害最为猖獗。作者对该菌的寄主范围、病害发生发展规律、药剂筛选、防治都作了研究,且提出调查与分级的新方法。采用综合防治措施,严格控制浇水,发病初期选喷退菌特、波尔多液、代森锰锌等杀菌剂,经大面积生产应用,只要及时周到,可收到显著效果。     

Host selection of Helicoverpa armigera and H. assulta and its inheritance

The difference in host selection between the polyphagous Helicoverpa armigera (Hübner) and the oligophagous H. assulta Quenée was examined, with cotton (Gossypium hirsutum), tomato (Lycopersicon esculentum) (hosts of H. armigera), tobacco (Nicotiana tobaccum) (host of both H. armigera and H. assulta), and bush redpepper (Capsicum frutescens) (host of H. assulta) as testing plants. A multiple-choice test was used with caged plant cuttings for adult oviposition and with leaf discs for larval feeding. A no-choice test was run for evaluating larval growth rate. The results indicated that the relationship between larval performance and adult preference of H. assulta was more conspicuous than that of H. armigera. Reciprocal hybridization between H. armigera and H. assulta followed by backcrossing of the hybrids (F1) with H. armigera was also carried out for genetic study on host selection of these two insect species. A two-choice test with cotton and bush redpepper leaf discs showed that H. armigera larvae preferred to feed on cotton, and H. assulta larvae to bush redpepper; feeding preferences of the two F1 lines were intermediate between those of their parents, but close to that of their female parent; preference indexes of backcross lines also showed that both maternal factor and chromosomal inheritance were involved in feeding selection of two Helicoverpa species.     

基于免疫的系统安全扫描模型

根据生物免疫学的原理 ,提出了用于内部安全扫描的计算免疫模型 ,希望计算机系统的安全免疫能够具有类似生物的自适应性或者智能性 .并且还介绍了根据该模型设计并初步实现的“网络卫士”安全系统安全评估系统 .     

基质掺杂离子对(Y,Rn)_2O_2S∶Sm~(3 ),Ti~(4 ),Mg~(2 )(Rn=La,Gd,Lu,Ga,Al)红色长余辉材料余辉性能的影响

采用高温固相法制备了基质掺杂的(Y,Rn)_2O_2S∶Sm~(3 ),Ti~(4 ),Mg~(2 )(Rn=La,Gd,Lu,Ga,Al)红色长余辉材料,主峰均为4G5/2→6H7/2跃迁的红橙色光发射,不受基质掺杂的影响.余辉性能测试表明掺杂离子半径对余辉性能具有重要的影响:单掺时,与Y3 半径相近并略小时样品的余辉时间有正增长;双离子共掺时均为小半径的掺杂对余辉性能有显著的提高,其中之一半径较大时即具有负效应.并对可能存在的机理进行了初步探讨.     

基质掺杂离子对(Y,Rn)2O2S:Sm3+,Ti4+,Mg2+(Rn=La,Gd,Lu,Ga,Al)红色长余辉材料余辉性能的影响

采用高温固相法制备了基质掺杂的(Y,Rn)2O2S:Sm3 ,Ti4 ,Mg2 (Rn=La,Gd,Lu,Ga,Al)红色长余辉材料,主峰均为4G5/2→6H7/2跃迁的红橙色光发射,不受基质掺杂的影响.余辉性能测试表明掺杂离子半径对余辉性能具有重要的影响:单掺时,与Y3 半径相近并略小时样品的余辉时间有正增长;双离子共掺时均为小半径的掺杂对余辉性能有显著的提高,其中之一半径较大时即具有负效应.并对可能存在的机理进行了初步探讨.