Results 11 to 20 of about 35,897 (172)
网络诊断是一种高效且方便的通过端到端路径的性能测量来推断网络内部状态的方法,在有线和无线网络的链路测量和故障定位中得到了广泛应用。对网络诊断的4种基础模型布尔网络诊断技术、可加网络诊断技术、带宽网络诊断技术、随机网络诊断技术的模型基础进行了总结分析。系统梳理了网络诊断技术中的关键问题,主要包括监视器放置、信标服务放置、路径构建和数据分析、网络诊断中可识别性,以及不保证识别性时的网络诊断攻击等。同时梳理了基于网络编码的网络诊断 ...
许晓佳, 王永才, 李德英
doaj +1 more source
目的探讨分析心肌灌注成像(myocardial perfusion imaging,MPI)联合冠状动脉钙化积分(coronary artery calcium score,CACS)诊断冠心病(coronary artery disease,CAD)效能观察。方法选取我院2017年9月-2018年9月收治的130例拟诊断冠心病患者为研究对象并开展回顾性分析,均行MPI联合CACS检查,并于1个月内行CAG检查,以CAG检查结果为金标准,分析MPI、CACS及两者联合的诊断效能。结果 ...
蒲岚, 张玮, 林雪皎
doaj
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang +11 more
wiley +1 more source
ABSTRACT Multi‐element Prussian blue analog (PBA) nanocomposites have attracted wide attention for their superior characteristics to single‐functional nanomaterials in extensive applications of diagnosis and therapy. In this study, a novel hollow nanocomposite was designed and fabricated by embedding S2− and Ag nanoparticles into a NiCuMnFe (PBA).
Tao Ji +7 more
wiley +1 more source
Coproduction as a Causal Process
ABSTRACT That many public goods and services are coproduced jointly by government agencies (regular producers) together with clients and citizens (consumer producers) represents a fundamental insight, although it has proven a challenge to define coproduction clearly and to study it rigorously.
Gregg G. Van Ryzin
wiley +1 more source
现有的基于电磁感应理论的接地网故障诊断方法需要大量的磁场测量数据,为了解决该问题,笔者提出了一种基于支路影响系数分析的分层诊断方法。首先定义了支路影响系数,并根据影响系数建立了支路诊断难易程度的评价体系。在该评价体系的指导下,分层诊断方法的测量点选取更具针对性,并以分层递进的方式实现了高精确度的腐蚀诊断。在诊断模型求解方面,运用改进的鲸鱼优化算法,保证了分层诊断的准确性。最后,进行了分层诊断与普通磁场反演诊断的对比实验。实验结果表明:分层诊断方法可以在保证诊断准确率的情况下大幅减少测量点数量 ...
杨子杰, 王昕, 张轶珠
doaj
Canine atopic dermatitis (cAD) is a chronic condition requiring life‐long management. Accurate diagnosis can be challenging, with no reliable diagnostic test. This study aimed to generate a simple diagnostic model for cAD. This model is a relevant prototype for an app‐based tool to support general practitioners in the diagnosis of cAD alongside ...
Xavier Langon +2 more
wiley +1 more source
ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
wiley +1 more source
ABSTRACT Background Advances in transcriptomics have driven the demand for minimally invasive, reproducible and high‐yield skin sampling methods, particularly for studying inflammatory skin diseases in companion animals. Hypothesis/Objectives We tested tolerability, feasibility and RNA quantity and quality of three minimally invasive skin sampling ...
Ina Herrmann +2 more
wiley +1 more source
CT、MRI在眼眶海绵状血管瘤与眼眶神经鞘瘤影像学鉴别诊断中的研究
目的对CT、MRI在眼眶海绵状血管瘤与眼眶神经鞘瘤的影像学鉴别诊断中的应用价值进行研究。方法选取我院2015年3月至2016年3月收治的经CT诊断为眼眶海绵状血管瘤患者38例和眼眶神经鞘瘤患者45例,经MRI诊断为眼眶海绵状血管瘤患者41例和眼眶神经鞘瘤患者39例。对所有患者进行肿瘤鉴别诊断,主要分为定性诊断符合和定位诊断符合,定性诊断符合是影像学诊断与病理诊断结果一致;定位诊断符合是影像学诊断与手术定位结果一致。分别计算CT、MRI的定性、定位诊断符合率。结果 ...
李金星, 郭庆环, 张林昌
doaj

