实时故障诊断专家系统的应用研究

介绍了对某钢厂冷轧大型自动化生产线进行状态监测和故障诊断的实时故障为诊断专家系统的研究及实现，对开发类似实时故障诊断专家系统有参考价值。     

Avian species richness in cities: A review of the Spanish-language literature from the Southern Cone of South America

Urban Ecosystems - South America sustains an important part of the world’s terrestrial biodiversity and its population is highly urbanized. Global syntheses have revealed a paucity of urban...     

AIDE: Adaptive intrapatient dose escalation designs to accelerate Phase I clinical trials

Designing Phase I clinical trials is challenging when accrual is slow or sample size is limited. The corresponding key question is: how to efficiently and reliably identify the maximum tolerated dose (MTD) using a sample size as small as possible? We propose model-assisted and model-based designs with adaptive intrapatient dose escalation (AIDE) to address this challenge. AIDE is adaptive in that the decision of conducting intrapatient dose escalation depends on both the patient's individual safety data, as well as other enrolled patient's safety data. When both data indicate reasonable safety, a patient may perform intrapatient dose escalation, generating toxicity data at more than one dose. This strategy not only provides patients the opportunity to receive higher potentially more effective doses, but also enables efficient statistical learning of the dose-toxicity profile of the treatment, which dramatically reduces the required sample size. Simulation studies show that the proposed designs are safe, robust, and efficient to identify the MTD with a sample size that is substantially smaller than conventional interpatient dose escalation designs. Practical considerations are provided and R code for implementing AIDE is available upon request.     

组织结构视角下农业社会化服务模式研究

基于组织结构的视角,以第一批全国农业社会化服务典型案例为研究对象,可以将我国现有的优秀农业社会化服务模式大致分为层级型、平台型和网络型三大类.研究发现,平台型和网络型服务模式在带动小农户、拓展服务内容、降低服务成本等方面,明显强于层级型服务模式.但是,平台型和网络型服务模式中的服务内容复杂繁多、所涉及资源要素偏多,往往需要实力较强的龙头企业带动;而层级型服务模式中,很少需要龙头企业等工商资本介入,其对农业社会化服务主体整合服务资源的能力要求偏低,便于农民自发组织开展,在我国很多农村地区更具有推广的可行性.     

单片机应用系统的自动恢复技术

从软件的角度简要讨论了单片机系统在遭受干扰后，及时发现和拦截失去控制的程序流向并尽可以无扰动地恢复系统正常工作状态的各种方法和措施。