CONTENTS

Essay

My reminiscence

YOSHIKI Haruo /441

Technical Comments and Reports

Special Issue - "Environmentally Conscious Technologies in Gas Turbine Application"

DOI Yoshiyuki, AOTA Yoyosei, AKITA Hideaki, MAEHATA Shigeru, SHIMADA Nobuyoshi, OKADA Hidetake /442

Washable Filter for Gas Turbine Air Intake

KINOSHITA Yasuhiro /447

Combustion Techniques of Low NOx Emission for Bio Gas

KOBAYASHI Hideo /453

Aerodynamic and Structural Measurement Engineering for Aircraft Turbine Engines

NAKATA Yasushi, MINAGAWA Nobuya /459

High Efficiency combined Power Plant System to be Applied Middle Capacity Gas Turbine

SUE Motohiko, NAGATOMO Takashi /465

Lecture

Aerodynamic Noise (1) (Turbomachinery Noise)

KOBAYASHI Hiroshi /471

Contributed Papers

Optical Blade-Tip Clearance Sensor for Non-Metal Gas Turbine Blade

MATSUDA Yukio, TAGASHIRA Takeshi /479

Boundary Layer Bypass Transition on a Flat Plate Induced by Periodic Wake Passage affected Pressure Gradients (Effect of Free-Stream Turbulence)

KOYABU Eitaro, FUNAZAKI Ken-ichi, TAKAHASHI Jun /485

Strength Evaluation to Develop the High Pressure Turbocharger (2nd report, Influence of Turbine Scroll on Blade Vibration)

IWAKI Fuminori, MITSUBORI Ken, TAGUCHI Hidetoshi, CHINO Chitoshi, OBATA Masakazu /493

Tearoom

Surai Koukouki

TAKAHARA Kitao /498

Letters from R&D Groups

R & D on Small Gas Turbines and Turbo Chargers in Nagasaki Research & Development Center Mitsubishi Heavy Industries, Ltd.

TOKUDA Kimishiro, KONDO Takeshi, HIGASHIMORI Hirotaka /499

Communicated Articles

XV ISABE (Fifteenth International Symposium on Airbreathing Engines)

FUTAMURA Hisao /502

Photograph on Cover

1000 kVA Mobile Gas Turbine Generator

IIZUKA Yasunobu /505

Notice

508