双机容错在医院信息系统安全中的应用     

罗颢 《中国科技信息》2005,(16):30

双机容错是计算机应用系统稳定、可靠、有效、持续运行的重要保证;为确保医院信息系统的正常运转,防止数据丢失,服务器采用双机容错是必要的。  相似文献   

QTL analysis for some quantitative traits in bread wheat     

Pushpendra KG  Harindra SB  Pawan LK  Neeraj K  Ajay K  Reyazul RM  Amita M  Jitendra K 《Journal of Zhejiang University. Science. B》2007,8(11):807-814

Quantitative trait loci (QTL) analysis was conducted in bread wheat for 14 important traits utilizing data from four different mapping populations involving different approaches of QTL analysis. Analysis for grain protein content (GPC) sug- gested that the major part of genetic variation for this trait is due to environmental interactions. In contrast, pre-harvest sprouting tolerance (PHST) was controlled mainly by main effect QTL (M-QTL) with very little genetic variation due to environmental interactions; a major QTL for PHST was detected on chromosome arm 3AL. For grain weight, one QTL each was detected on chromosome arms 1AS, 2BS and 7AS. QTL for 4 growth related traits taken together detected by different methods ranged from 37 to 40; nine QTL that were detected by single-locus as well as two-locus analyses were all M-QTL. Similarly, single-locus and two-locus QTL analyses for seven yield and yield contributing traits in two populations respectively allowed detection of 25 and 50 QTL by composite interval mapping (CIM), 16 and 25 QTL by multiple-trait composite interval mapping (MCIM) and 38 and 37 QTL by two-locus analyses. These studies should prove useful in QTL cloning and wheat improvement through marker aided selection.  相似文献   

论宗教改革与资本主义民主精神     

邱程 《安庆师范学院学报(社会科学版)》2011,30(8):92-96

宗教改革是继文艺复兴之后又一次思想解放运动,宗教改革的年代是欧洲资产阶级力量上升的时期,它的发展对西欧社会进步产生了巨大的推动作用,引发了思想观念的变革,为社会转型奠定了思想基础。从根本上说,宗教改革是一场在宗教外衣掩护下,新兴资产阶级反对封建统治的政治变革,推动了资本主义民主的发展。  相似文献   

“A就A”复说格式研究     

郭初建 《湖南第一师范学报》2011,11(2):96-99

有多住学者对“A就A”复说格式进行了分析和研究,取得了许多的成果,但对此类格式的分析远没有分析透,存在概念模糊、结论不一的现象。“A就A”的格式意义要分层次论证,分为句法结构层面上的“确认认可义”和语境层面上的“决断容忍”义。  相似文献   

由周作人“文学的自由”与“文艺的宽容”引发的思考     

郝艳萍 《楚雄师范学院学报》2011,26(2):7-11

曾高举"人的文学"的大旗、"五四"时期走在时代前列的周作人,在20、30年代却渐从新文学主潮的带头人变为他所说的"自由的思想者",主张"文学的自由"与"文艺的宽容"。但他的理论与行为成矛盾状态,于是引发了笔者对他所提出的这两个理论所涉及到的一些问题的思考:功利主义文学观与非功利主义文学观能否并存,文学批评是否应该讲究"宽容"。  相似文献   

Development of a space cold atom clock     

Wei Ren  Tang Li  Qiuzhi Qu  Bin Wang  Lin Li  Desheng Lü  Weibiao Chen  Liang Liu 《国家科学评论(英文版)》2020,7(12):1828

Atomic clocks with cold atoms play important roles in the field of fundamental physics as well as primary frequency standards. Operating such cold atom clocks in space paves the way for further exploration in fundamental physics, for example dark matter and general relativity. We developed a space cold atom clock (SCAC), which was launched into orbit with the Space Lab TG-2 in 2016. Before it deorbited with TG-2 in 2019, the SCAC had been working continuously for almost 3 years. During the period in orbit, many scientific experiments and engineering tests were performed. In this article, we summarize the principle, development and in-orbit results. These works provide the basis for construction of a space-borne time-frequency system in deep space.  相似文献   

Influence of organization learning on innovation output in manufacturing firms in Kenya     

《国际创新研究学报(英文)》2020,4(1):16-26

Knowledge entrepreneurship is increasingly becoming important in driving innovation for high levels of competitiveness. The purpose of this study was to investigate the relationship between Organization Learning (OL) and Innovation Output (IO) for improved performance in manufacturing firms in Kenya. The theoretical underpinnings on this study are the Schumpeter’s (1934) innovation theory of and the Gleick (1987) complexity theory. The methodology used was mixed method research because it provides a more holistic understanding of a thematic area. The research design that was used is cross-sectional design because it allows for making observations on different characteristics that exist within a group at a particular time. The target population was manufacturing firms across the country. Multi-stage sampling strategy was used to sample 303 respondents from 101 firms. Primary and secondary data were used to collect both qualitative and quantitative data. The questionnaire, interview schedule and a checklist of key informants were used to collect data. Content validity was used to ascertain the credibility of the research procedure and internal consistency technique was used to test for reliability. Correlation and linear regression were used to determine the relationship between OL and IO. Work disruptions were avoided by making prior arrangements and appointments. The findings indicate that OL has a significant influence on IO. It is recommended that lifelong learning, management support and risk tolerance should be encouraged to improve creativity. High creativity is important in raising the capacity to integrate internal and external knowledge for greater levels of IO. Further research should be carried out to find how customers and suppliers information can be utilized to enriched OL.  相似文献   

云科-18选3的孕穗期耐冷性评价及遗传研究   总被引：1，自引：0，他引：1  

李楠 《河池学院学报》2007,27(2):72-76

在湛江2004和2005年度,于自然条件下对237个水稻材料进行大田分期播种试验和人工气候箱定温试验。并对所有这些材料进行孕穗期耐冷性评价,其中来源于云南农科院并经单株选择的云科-18选3能耐受12℃的低温,是所有供试材料中最为耐冷的。用云科-18选3作母本与不耐冷材料R6067作父本杂交,以低温条件下的自交结实率作为孕穗期的耐冷性评价指标,采用王建康等分析软件,研究表明云科-18选3孕穗期耐冷性受一对主效基因控制。  相似文献   

求解非线性伏尔泰拉积分方程的有限差分方法     

苟斐斐  刘建军  刘卫东  罗莉涛 《中国科学院大学学报》2016,33(3):329-333

研究一类典型的伏尔泰拉积分方程的数值求解方法.通过数值差分离散积分方程,然后将积分方程演化为非线性代数方程组,通过迭代推进求解此类积分方程.分析这种求解方法的代数精度,证明此数值解法的精度高达Δt²阶,可以满足工程计算需要.通过数值仿真验证,数值解与解析解的误差为10^-5.如果采用更高阶的数值积分离散方式,可以获得更高阶精度.  相似文献   

母亲遭受家庭冷暴力对儿童早期多动行为的影响:亲子冲突与睡眠问题的链式中介作用     

高健  高敏  谭欣歌  刘娟 《中国特殊教育》2021,(1):75-82

为探讨母亲遭受家庭冷暴力与儿童早期多动行为的关系及亲子冲突与睡眠问题的链式中介作用,使用家庭冷暴力量表、长处与困难问卷、亲子关系量表和Achenbach儿童睡眠行为量表对2728名1-8岁儿童及其母亲进行测查,采用SPSS26和Mplus8.3对数据进行统计分析并建立结构方程模型.研究发现,在控制了母亲的受教育程度、儿...  相似文献