继电保护隐性故障辨识技术要点分析

本文重点对当前常见的多种继电保护装置隐性故障辨识方法及要点进行分析,以期有效降低继电保护隐性故障处理作业难度,提高现有防护技术的先进性,确保其可对各故障类型进行精准识别,满足广大群众对于稳定、优质电能的使用要求。

菌根真菌促进植物氮磷吸收的研究进展

菌根是自然界普遍存在的一种植物共生体,菌根真菌与植物的互惠共生关系可促进土壤中矿质养分的活化与释放,提高土壤养分生物有效性,从而改善植物营养状况。本文分别从菌丝结构、生理生化、分子生物学等几个方面对菌根真菌如何摄取氮、磷元素,氮、磷代谢转运的分子机理,以及菌根真菌对植物吸收氮、磷的影响等方面的研究进展进行综述,并探讨了目前存在的主要问题与未来的研究重点。

人工潜流湿地系统在查干湖养殖污水净化处理中的应用研究

为验证人工潜流湿地系统在养殖污水净化方面发挥的作用,基于查干湖野鸭湾野鸭救护繁育站为研究对象的水循环体系,以养殖尾水水质净化为目标,采用复合垂直流潜流湿地污水处理技术进行养殖污水净化处理,开展人工潜流湿地水质净化系统研究。工程建设运行后于鸭舍、沉淀池、湿地出口设置3处水质检测采样点,通过对水质检测数据进行对比分析,评价潜流湿地系统的水质净化效果,为吉林西部河湖连通区典型湖泊湿地生态修复及黑臭水体治理提供技术样板。

A Survey of Federated Learning on Non-IID Data

Federated learning(FL) is a machine learning paradigm for data silos and privacy protection,which aims to organize multiple clients for training global machine learning models without exposing data to all parties.However,when dealing with non-independently identically distributed(non-ⅡD) client data,FL cannot obtain more satisfactory results than centrally trained machine learning and even fails to match the accuracy of the local model obtained by client training alone.To analyze and address the above issues,we survey the state-of-theart methods in the literature related to FL on non-ⅡD data.On this basis,a motivation-based taxonomy,which classifies these methods into two categories,including heterogeneity reducing strategies and adaptability enhancing strategies,is proposed.Moreover,the core ideas and main challenges of these methods are analyzed.Finally,we envision several promising research directions that have not been thoroughly studied,in hope of promoting research in related fields to a certain extent.