Engine for cerebral development

A deterministic theoretical model that simulates the developmental process of the human brain is proposed. Observations of the development of the human brain with a high-speed camera show that the bones of the skull become increasingly larger over the neck, and that a lot of soup-like fluid for generating brain cells enters the skull from the body. This process is essentially similar to the intake process of an internal combustion engine, because the volume of the engine’s cylinder, which increases according to the descent of the piston, geometrically corresponds to the development of the skull, and also because the human neck resembles the intake port that serves as the throat of the engine. A higher-order numerical computation of the Navier-Stokes equation reveals the similarity between the convexoconcave forms inside the brain and the flow structure in the internal combustion engine. We will show that the present computation also simulates the emergence of the eyeballs. Finally, we will clarify the reason why cerebral development is strongly influenced by fluid dynamics. This work was presented in part at the First European Workshop on Artificial Life and Robotics, Vienna, Austria, July 12–13, 2007     

An expert system for engine fault diagnosis: development and application

The mass production and wider use of automobiles and the incorporation of complex electronic technologies all indicate that the control of faults should be given an integral part of engine design and usage. Today, artificial intelligence (AI) technology is widely suggested for systematic diagnosis of faults where the amount of well-defined diagnosis knowledge is vast and the sequence of steps required to identify the fault is very long. This article describes on an expert system application for automotive engines. A new prototype named EXEDS (expert engine diagnosis system) has been developed using KnowledgePro, an expert system development tool, and run on a PC. The purpose of the prototype is to assist auto mechanics in fault diagnosis of engines by providing systematic and step-by-step analysis of failure symptoms and offering maintenance or service advice. The result of this development is expected to introduce a systematic and intelligent method in engine diagnosis and mai ntenance environments.     

Improved similarity based prognostics method for turbine engine degradation with degradation consistency test

Applied Intelligence - Similarity-based prediction methods have gained increasing attention in data-driven remaining useful life (RUL) technologies, mainly because of their strong generalization...     

Vague集相似度量方法

提出一种新的Vague集相似度量方法,并证明了它满足若干准则。指出了现有方法的不足,并通过实例说明了该方法的有效性和优越性。     

Vague集相似度量的新方法

根据区间相似性的原理,指出影响Vague集相似性度量的4个因素,指出了现有方法的不足,提出了一种新的Vague集相似性度量方法,证明了它满足若干准则。通过例子证明了方法的有效性和优越性。     

Vague集相似度量的新方法

指出了现有方法的不足,提出一种新的Vague集相似度量方法,并证明了它满足若干准则。通过实例说明了方法的有效性和优越性。     

关于Vague集间相似度量的缺陷及修补

在Vague集中,Vague集间相似度量的应用是最广泛的,但遗憾的是这些公式中的大多数是有缺陷的。用分段函数的方法试图修补这些公式,使得这些公式中的大多数能够继续使用。给出一个新的Vague集间的加权相似度量公式,该公式更具合理性。     

Engine performance and optimum injection timing for 4-cylinder direct injection hydrogen fueled engine

This paper presents the engine performance and optimum injection timing for 4-cylinder direct injection hydrogen fueled engine. The 4-cylinder direct injection hydrogen engine model was developed utilizing the GT-Power commercial software. This model employed one dimensional gas dynamics to represent the flow and heat transfer in the components of engine model. Sequential pulse injectors are adopted to inject hydrogen gas fuel within the compression stroke. Injection timing was varied from 110° before top dead center (BTDC) until top dead center (TDC) timing. Engine speed was varied from 2000 rpm to 6000 rpm, while the equivalence ratio was varied from 0.2 to 1.0. The validation was performed with the existing previous experimental results. The negative effects of the interaction between ignition timing and injection duration was highlighted and clarified. The results showed that optimum injection timing and engine performance are related strongly to the air fuel ratio and engine speed. The acquired results show that the air fuel ratio and engine speed are strongly influence on the optimum injection timing and engine performance. It can be seen that the indicated efficiency increases with increases of AFR while decreases of engine speed. The power and torque increases with the decreases of AFR and engine speed. The indicated specific fuel consumption (ISFC) decreases with increases of AFR from rich conditions to lean while decreases of engine speed. The injection timing of 60° BTDC was the overall optimum injection timing with a compromise.     

Vague集之间的相似度量公式及其应用

提出Vague集之间的一个新相似度量公式,例子表明该公式的分辨力是较强的。农业领域的应用实例进一步表明此公式是实用的。     

搜索引擎系统：UML/OCL模型驱动开发

介绍一个搜索引擎系统的开发。运用UML用例图做系统的需求分析,运用UML类图、状态图、包图进行系统设计。以OCL表达式丰富状态图。使用C#语言和ASP.NET编程,SQL Server存储信息,系统运行在微软.NET环境上。遵循面向对象方法,如逐步求精和模块化,建立UML/OCL模型、组织程序,将系统逐层分解成具有特定功能的模块。系统由收集器、索引器、检索器三大部分组成,分别负责数据收集、数据分析和索引构建、用户检索接口。论文报告系统分析、设计和实现的思想和过程。     

WebOWL: A Semantic Web search engine development experiment

This paper presents WebOWL, an experiment in using the latest technologies to develop a Semantic Web search engine. WebOWL consists of a community of intelligent agents, acting as crawlers, that are able to discover and learn the locations of Semantic Web neighborhoods on the Web, a semantic database to store data from different ontologies, a query mechanism that supports semantic queries in OWL, and a ranking algorithm that determines the order of the returned results based on the semantic relationships of classes and individuals. The system has been implemented using Jade, Jena and the db4o object database engine and has successfully stored over one million OWL classes, individuals and properties.     

句子语义相似度计算

句子或文本片段相似度计算在与Web相关的任务中起着越来越重要的作用。在基于概念之间的语义相似度基础之上,提出一种句子语义相似度的计算方法SSBS并进行了相关的实验。与其他方法相比,SSBS方法在特征的量化过程中不仅考虑两个句子的概念对之间的语义相似度和字符串编辑距离,还考虑了不同词性的概念对句子相似度的影响。     

航空发动机试车计算机辅助试验软件模块化开发

针对航空发动机试车计算机辅助试验（Computer Aided Testing,CAT）软件系统可移植性差、复用性低等问题,采用软件工程思想,探讨其软件结构和模块划分,给出各模块的具体功能和实现方法．具体应用表明,模块化开发技术可提高航空发动机试车计算机辅助试验软件系统的开发质量和效率,减少重复工作．     

A taxonomy for similarity metrics between Markov decision processes

Machine Learning - Although the notion of task similarity is potentially interesting in a wide range of areas such as curriculum learning or automated planning, it has mostly been tied to transfer...     

关于Vague集的相似度量定义的注

克服在许多公式中,当Vague值x=[01]和y=[01]时,Vague值之间的相似度量值M(xy)=1的缺陷,给出Vague集的相似度量新的定义,并给出符合相似度量新定义的一个公式。     

[m]allotROPism: a metamorphic engine for malicious software variation development

International Journal of Information Security - For decades, code transformations have been a vital open problem in the field of system security, especially for cases like malware mutation engines...     

融合目标相似性和作用力的多目标跟踪

目的 多目标跟踪是计算机视觉一个重要的研究方向,为了解决多目标跟踪中错跟和漏跟导致跟踪精度低的问题,提出一种融合目标相似性和作用力的多目标跟踪算法。方法 首先将多目标跟踪问题转化为一个最大后验概率问题,其次将最大后验概率问题映射到网络流中,利用最小代价流寻找最优路径,这样获得的最优路径就是目标轨迹。为了计算网络流中目标节点之间的代价,从以下两方面考虑：1）将目标的外观、运动和位置信息三者结合,计算目标间的相似度;2）考虑目标与目标的相互影响,参考社会力模型中个体之间的吸引力来计算目标节点之间的作用力。结果 在 MOT15、MOT16 和 MOT17 共 3 个公开数据集进行实验评估并与 12 种方法进行比较,实验结果表明,本文算法在 MOTA（multiple object tracking accuracy）、MT（mostly tracked tracklets）、ML（mostly lost tracklets）、FP（false positives）、FN（false negatives）等指标上明显优于 OACDASM（online association by continuous-discreteappearance similarity measurement）、STURE （spatial-temporal mutual representation learning）、IQHMOT （identityquantity harmonic multi-object tracking）和 GCNNMatch（graph convolutional neural network match）等典 型算 法 。 在MOT15 数据集中选取 ETH-Bahnhof、TUD-Stadtmitte 与 PETS09-S2L1 3 个视频序列进行消融实验,验证增加目标作用力之后的数据关联结果,消融实验结果表明,增加目标作用力之后可以改善目标跟踪的精度和其他指标,尤其在遮挡不明显的视频序列中。结论 本文在目标多特征的基础之上增加目标节点间作用力,加强了目标间的数据关联,减少错跟的目标数量,有效地提高了目标跟踪的精度。     

元搜索引擎的现状与发展

元搜索引擎利用现有的独立搜索引擎的查询性能,将搜索引擎看成一个整体,为用户提供一个统一的查询界面与返回结果。介绍了目前网络上比较著名和流行的一些元搜索引擎,对近几年来关于元搜索引擎的研究进行了分析总结,旨在为对元搜索引擎的进一步研究提供参考。