本稿はSeismic Un*x (SU) をMac OS X上で動作させる方法について解説する。SUは反射法地震探査データの処理ソフトウェア・パッケージであり，さまざまなベースのOSにインストールできる。Mac OS XはベースのOSであり，SUをMacintoshとしての利用の延長上で使用できる。Mac OS X上にSUを導入するために必要な環境の整備について解説するとともに，SUのソフトウェア・パッケージの入手方法からSUのインストールの手順までを詳しく記述した。

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The consumption of a soldering iron by Pb-free solder is examined and the kinetic analysis of the reaction between the solder and the soldering iron is discussed. The consumption of the soldering iron increases with prolonged contact time between the solder and the soldering iron. No thick reaction layer is detected at the solder/soldering iron interface at the position where fused solder is removed by compressed air cleaning. However, at the position where fused solder remains, a thick reaction layer is formed. In particular, a thick FeSn₂ reaction layer is observed when fused solder sticks on the surface of the soldering iron for a long time. On the basis of the reaction kinetics, the growth rate of the reaction layer is demonstrated to be controlled by iron diffusion through the reaction layer. The mechanism of soldering iron consumption by Pb-free solder is as that a ∼30 nm-thick layer is formed during one soldering process and then flaked off from the surface of the soldering iron during compressed air cleaning.

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We propose the Eigen Co-occurrence Matrix (ECM) method, which is a modeling method for tracking the behaviors of an individual, system, or network in terms of event sequences of discrete data. Our method uses the correlation between events in a sequence to extract distinct characteristics. A key idea behind the ECM method is to regard a sequence as a serialized sequence that originally had structural relations and to extract the embedded dependencies of the events. To test its retrieval performance, we applied the ECM method to the problem of anomaly detection in intrusion detection systems. Specifically, we used the method to model a command sequence and attempted to detect intruders masquerading as valid users. The experimental results reveal that the ECM method offers distinct characteristic models for analyzing event sequences.

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We propose the Eigen Co-occurrence Matrix (ECM) method, which is a modeling method for tracking the behaviors of an individual, system, or network in terms of event sequences of discrete data. Our method uses the correlation between events in a sequence to extract distinct characteristics. A key idea behind the ECM method is to regard a sequence as a serialized sequence that originally had structural relations and to extract the embedded dependencies of the events. To test its retrieval performance, we applied the ECM method to the problem of anomaly detection in intrusion detection systems. Specifically, we used the method to model a command sequence and attempted to detect intruders masquerading as valid users. The experimental results reveal that the ECM method offers distinct characteristic models for analyzing event sequences.

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愛知淑徳大学では,AV資料(オーディオ・ビジュアル資料)の教材としての利用度をあげるため,専用のデータベースを作成して,資料・ブース検索,貸し出し・返却管理および学習管理を可能とするシステムを上に構築した。同システムの開発目的,特徴,機能および効果・課題を述べて,その概要を紹介する。

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For sea traffic data acquisition we have ; direct observation, radar image and radar ARPA. This is the basic method today of analyzing sea traffic. Nowadays, the number of AIS equipped ships is increasing, so that sea traffic can be more readily observed by AIS. In this paper, we propose creating a sea traffic database system using AIS. Also, the outline and conclusion of such a system in Osaka bay is described. This system would aim to offer sea traffic data for analysis and in various fields.

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Information systems are required in radiology to unify HIS, RIS, and PACS. In 1990, LAN construction plans were as follows: 1)adoption of Ethernet without dependency on traders, 2)use of image transmission with a standard transmitting protocol (TCP/IP), and 3)utilization of FTP-applications. This helped to realize image transmission among CT, MRI, and RI. From 1995 to 1996, the information system underwent a major reconstruction so that real-time image transmission could be obtained. We examined the use of FDDI (fiber distributed data interface), Switching HUB, a server, and workstation in order to improve transmission speed and maintain a former system. sufficient speed for practical image transmission with the existing LAN was obtained using FDDI (100 Mbps).

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The growth of material and semicondutor technology enable the tremendously increase in disk density. Hard disk capacility has grown from mega-byte capacility to gigibtye and maybe we may even seen terbytpe disk in the near future. With the growth in disk capacity, we also see a increase in volume of data. Getting terabtyes of data in and out of disks is not trivial, especially with realtime requirement. In this paper, we discuss a new system achitecture and file system that is specifically designed to handle large data requirement.

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TVOCs (total organic compounds) emission process of the drying building materials belongs to interior control diffusion mode, so it influences indoor air quality in a long-term. The mixing ventilation is one of widely used modes in actual ventilation engineering application, which inflow concentration relates to outflow concentration and mixing ratio of fresh air and return air. Meaning while, the inflow velocity is usually varied based on the occupant exposure environment temperature. The impact of environment temperature on TVOCs emission rate also needs to consider during the program and simulation as well. The objective of this paper was to develop a user program to simulate the indoor TVOCs concentration distribution with the consideration of the above affecting factors under an integrated environment of FLUENT/ 6.1.22. TVOCs concentration distribution features of indoor and inside the material were analyzed. The average concentrations of two occupant exposure zones with respect to time and TVOCs emission rate were also investigated. At last, the residual TVOCs percentage in the material was presented. The program and simulation are helpful for further research of healthy occupant environment and designing proper ventilation.

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ITインフラ構築プロジェクトでは,アプリケーション・コードのような工数算出のベースがないため,モデル化された工数算出手法がない.工数見積りの誤りはプロジェクトの失敗の原因となるため客観的な算出手法が求められる,本論文ではプロジェクト開始時における概算工数見積りモデルを提案する.本手法を以下に示す.(1)プロジェクト分析を行い,工数算出の要素としての規模と難易度要因を明確にする.(2)難易度要因を難易度係数を用いて規模で表現する.(3)規模と規模で表された難易度からプロジェクトの全体工数を求める.工数はプロジェクト実績の分析により考案したプロジェクトの工数算出式を用いる.本手法を実際のプロジェクトの工数見積りに適用し,有効な工数算出モデルであることが実証できた.

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複雑なシステムの全体的な構造を把握するために, 一対比較データにファジィ理論を用いて項目間の全体的な関係を多階層有向グラフ表示するFSM(Fuzzy Structural Modeling)法が提唱されている.本研究では, オペレーティング・システムのユーザビリティ研究にFSM法の適用を試みた.すなわち, オペレーティング・システムのユーザビリティに関係する項目について, 項目の重要性, ユーザビリティ改善の方向性に関する一対比較に基づく質問紙調査を行い, 得られた一対比較データをFSM法を用いて分析を行った.その結果, Windowsおよびの各々のオペレーティング・システムに特徴的な使いにくさ, 操作をする際に留意しなければならない点, 改善の方向性などに関する知見が得られた.また, FSM法のコンピュータ・ユーザビリティ研究に適用することの有効性が考察された.

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Internet is the largest computer network interconnecting most part of the world. STA (Science Technology Agency) has begun a project of IMNet (Inter-Ministry computer Network). IMNet is used for study of computer network technology, communication protocol, data base, and so on. And it's connected with Internet. ENRI (Electronic Navigation Research Institute) has joined the project since 1994.

In this paper, I introduce a summary of equipment for connecting to IMNet and its employment.

Results of the employment are summarized as follows.

1. ENRI has closed network connection to JUNET with UUCP (

to CoPy) and begun to connect to IMNet with TCP/IP (Transmisson Control Protocol/Inernet Protocol). SRI (Ship Research Institute) also has been connected.

2. I have set up a small network as “Firewall” and run proxy server on the Firewall.

3. Users in ENRI and SRI could use various Internet services such as e-mail (electronic mail), netnews, ftp (File Transfer Protocol), telnet and WWW (World Wide Web).

4. I examined traffic of e-mail and netnews. A statistic is showed that most e-mail traffic is from other parties in Japan.

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