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.     

Free time,gender and the pandemic: An exploration of children's daily routines in the times of COVID-19 in Chile

This article discusses the differentiation by gender displayed by children between 8 and 12 years old on how they used their free time during the COVID-19 pandemic in Chile. This study had a qualitative approach, where 43 in-depth interviews were conducted with children from three different regions of the country, using participatory photo-elicitation as the central tool. The main results of the study show a configuration of free time based on gender stereotypes, showing that boys are the ones who most adhere to such stereotypes, triggering a crisis in the identity construction of masculinities during childhood. The study also suggests that socioeconomic and territorial differences between children configures different experiences of the use of free time.     

Classification Algorithm for Skin Color (CASCo): A new tool to measure skin color in social science research

Objective

A growing body of literature reveals that skin color has significant effects on people's income, health, education, and employment. However, the ways in which skin color has been measured in empirical research have been criticized for being inaccurate, if not subjective and biased.

Objective

Introduce an objective, automatic, accessible and customizable Classification Algorithm for Skin Color (CASCo).

Methods

We review the methods traditionally used to measure skin color (verbal scales, visual aids or color palettes, photo elicitation, spectrometers and image-based algorithms), noting their shortcomings. We highlight the need for a different tool to measure skin color

Results

We present CASCo, a (social researcher-friendly) Python library that uses face detection, skin segmentation and k-means clustering algorithms to determine the skin tone category of portraits.

Conclusion

After assessing the merits and shortcomings of all the methods available, we argue CASCo is well equipped to overcome most challenges and objections posed against its alternatives. While acknowledging its limitations, we contend that CASCo should complement researchers. toolkit in this area.     

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。