電子科学のためのサイバーインフラストラクチャ
1Engineering and Physical Sciences Research Council, Polaris House, North Star Avenue, Swindon SN2 1ET, UK.
Science (New York, N.Y.)
|May 10, 2005
まとめ
本研究では,科学研究を進めるためのeインフラストラクチャの要件を概説しています. サービス指向的なアプローチの必要性を強調し,研究能力を高めるために構成可能なサービスと意味論を強調しています.
科学分野:
- コンピュータサイエンス コンピュータサイエンス
- 科学コンピューティング 科学コンピューティング
- 情報科学 情報科学
背景:
- 現在の科学研究は,高度なコンピューティングリソースを必要とします.
- 既存のeインフラストラクチャは,進化する研究ニーズを満たすために強化する必要があります.
研究 の 目的:
- 次世代のeインフラストラクチャの要件を定義する.
- 科学コンピューティングにおけるサービス指向アーキテクチャを提唱する.
- 現実の世界でのe-Scienceプログラムの例を使って,そのメリットを説明します.
主な方法:
- 先進的な科学研究能力に対する要求の分析.
- イギリスのe-Scienceプログラムからのケーススタディ.
- サービス指向型インフラストラクチャの概念化.
主要な成果:
- より速く,より良く,新しい研究を支援するeインフラストラクチャの主要な要件を特定しました.
- 構成可能なサービスとセマンティック技術の有用性を実証しました.
- イギリスを中心とした"プラグ・アンド・プレイ"のeインフラストラクチャのビジョンを提示した.
結論:
- サービス指向のeインフラストラクチャは,将来の科学的発見に不可欠です.
- コンポーザブルサービスとセマンティックは,高度な研究のための基本的な要素です.
- 提案されたインフラストラクチャは,より効率的で革新的な科学的探査を可能にします.
関連する概念動画
01:21Electric Circuit Elements
Circuit elements are the basic building blocks of an electric circuit. Essentially, an electric circuit is the interconnection of these elements. Within electric circuits, one can find two types of elements: passive and active. Active elements have the ability to generate energy, whereas passive elements do not. Passive elements include components like resistors, capacitors, and inductors, while active elements typically encompass generators, batteries, and operational amplifiers.
The most...
The most...
01:14Circuit Terminology
An electrical network is a system composed of interconnected elements, such as resistors, capacitors, inductors, and voltage or current sources. Unlike a circuit, an electrical network does not necessarily form a closed path. In other words, while all circuits can be considered networks due to their interconnected nature, not every network qualifies as a circuit.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.
01:16RC Circuit without Source
When a DC source is abruptly disconnected from an RC (Resistor-Capacitor) circuit, the circuit becomes source-free. Assuming that the capacitor was fully charged before the source was removed, its initial voltage, denoted as V0, can be considered as the initial energy that stimulates the circuit.
Applying Kirchhoff's current law at the top node of the circuit and substituting the current values across the components, a first-order differential equation is obtained. By rearranging the terms in...
Applying Kirchhoff's current law at the top node of the circuit and substituting the current values across the components, a first-order differential equation is obtained. By rearranging the terms in...
01:25Network Function of a Circuit
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
01:21Electrical Systems
In electrical engineering, the analysis of networks composed of passive linear components — resistors (R), capacitors (C), and inductors (L) — is fundamental. These components are organized into circuits where the relationship between input and output can be analyzed using transfer functions. The transfer function of an RLC circuit, which relates the voltage across a capacitor to the input voltage, can be derived using Kirchhoff's laws.
To derive the transfer function, consider an RLC circuit...
To derive the transfer function, consider an RLC circuit...
01:30Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...