A clear distinction generally exists between processes of design generation and processes of design production. The profusion of digital fabrication tools and technologies make evident such distinctions in the context of design production but at the same time carry potential for material and fabrication-based processes promoting generative design methods. Such strategic application and customiz...

歯質に接着性 を有し, 従来か らのBlack方 式の 窩洞形成に変革 をもたらしたコンポジッ トレジン 修復法の発展には目をみはるものがある。特にコ ンポジッ トレジンのエナメル質に対する接着はり ン酸による酸処理 と接着性レジンモノマーを含む ボンディング材の併用により臨床的にはほぼ満足 のい くもの となり, 一・応の解決 をみている。 これに対 して, 象牙質に対する接着は未だ十分 なものとはいえず, 接着性能の向上をはか るため, 最近では各種象牙質前処理剤やプライマー類が開 発 され, あるものは市販されている状態にある。 しか しながら, 口腔衛生の普及や 口内清掃法の 発達により, 歯の延命が顕著 となり, 加 うるに高 齢者社会 を迎えて, 保存修復を必要 とする歯の実 質欠損の態様 も今 までとは変わ りつつあり, 特に 歯頚部, 歯根部の欠損や編蝕が増大 してい...

Ontological multi-level modeling refers to describing domain objects at multiple levels of abstraction. Using traditional semantic data modeling, multi-level modeling can be achieved by representing objects in different abstraction hierarchies, classification, aggregation and generalization. Multiple representation, however, leads to accidental complexity, complicating modeling and extension. S...

In this paper we present a distributed spatial data warehouse system designed for storing and analyzing a wide range of spatial data. The data is generated by media meters working in a radio based measurement system. The distributed system is based on a new model called the cascaded star model. In order to provide satisfactory interactivity for our system, we used distributed computing supporte...

We investigate the experimental effectiveness of XML security views. Our model consists of access control policies specified over DTDs with XPath expression for datadependent access control policies. We provide the notion of security views for characterizing information accessible to authorized users. This is a transformed (sanitized) DTD schema that is used by users for query formulation. To a...