Hideo Ohashi, Prof. Emeritus
University of Tokyo & Kogakuin University
The Window to Society after Retirement from Engineering Education
This top page is to transmit the proof that I am still alive and enjoying
retired life, mainly to my relatives, friends and former students. A story
or an event is selected from monotonous daily life and my thoughts and
experience are introduced.
From Daily Life - 31: Topics of eye
Keeping sound eyesight is a grateful privilege in daily life. I had a
visual acuity of 2.0 all the time when I was young. After around the age
of 50, I started to recognize various symptoms. The first change I noticed
was that focusing became slow. When I had a meeting in a big room, I shifted
my viewpoint from the materials at hand to the projected figures far away.
It took an instant to get focusing. It could be caused by a weakening of
the eye muscles. Then, presbyopia, which makes it difficult to see nearby,
began, and astigmatism added to it. I started wearing glasses on a daily
basis from around the age of 60. The glasses have also changed from simple
ones to advanced ones that correct lens power and astigmatism for three
targets in far, middle and near distance. Currently, I regularly use glasses
that emphasize middle and near sight, and use for driving glasses that
emphasize distant and middle sight.
Corrected visual acuity is maintained at 1.0 to 1.2, but the glasses last
for more than 10 years, probably because the eye condition has settled
down. Cataracts are slightly cloudy in the right eye, but far from the
surgical treatment. There are other eye weaknesses. Elderly people are
required to inspect their field of vision and light-dark adaptation speed
when they renew their driver's license. I have no problem with the inspection,
and I don't feel tired even when I drive long at night. I am very grateful
for keeping sound eyes for my age. I don't hear much about the training
that strengthens eyes like muscle training. I brush my teeth every day
but have never taken care of my eyes.
Last year I visited an eye doctor almost every 3 months. Occasionally
I feel discomfort at the outer corner of the left eye like a small particle
gets in, and it does not disappear even after washing the eye. After the
first diagnosis, the doctor said that it was caused by reverse eyelashes.
After pulling off several thin eyelashes, the discomfort instantly disappeared.
It must be also an ageing phenomenon, but the female doctor complimented
me as "It's because you're young and energetic." I wish neither
getting irregular eyelashes nor getting so weak that even eyelashes stop
to grow. This is likely to continue for a while.
Something interesting has happened recently. When I was looking at the
sky, I found a small cloud like a panda's face. As I watched, I noticed
that the panda was winking. Cloud would never wink! I carefully investigated
the phenomenon and found that it was synchronized with my pulse and occurred
only in the left eye. I went to the eye doctor and explained my symptoms,
thinking that something was wrong with my retina. After taking and examining
photographs of the fundus and tomographic images of the retina, the doctor
found no particular abnormality in the retina. After about a week, the
small pulsating region in the sight became much smaller. Now I cannot notice
it unless I observe very carefully. It was a happening that made me realize
the retina was alive.
My generation lived without looking at television and displays. Children
these days seem to work their eyes too heavily. I hope that eye training
would spread in the same way as muscle training.
→ Past Top Pages
"From Daily Life"
1: Tracing family roots
2: The second last car
3: August 15. my memorial day
4: Battlefield rations
5: Begginer at the gym
6: Fuji View Hotel
7: Lesson in Hiragana writing by brush
8: Moving from old to new smartphone
9: Living alone in my second year
10: Welcomed by cherry blossom
11: Eden of peach blossom
12: Tama River Walk
13: Chichibu Pilgrimage
14: Bonds with local community
15: About my homepage
16: Annual report of athletic gym
17: Pilgrimage to Mt. Tsukuba
18: Reunion of alumni and classmates
19: Braking by left foot
20: Battlefield rations in the sequel
21: Granddaughter has come!
22: Visit to Kobayashi Residence
23: Wake-up exercise
24: Digital photo album
25: Seven tools for brushing teeth
27: Quick report on drive monitoring
28: Hearing aid
29: Jindai Botanical Park
30: 2020, a historic year
Series 1: Parade with Doctor hat on the head
Series 2: Calligraphy in a frame
Series 3: A young man from the Orient
Series 4: Sumo-stamping
Series 5: Waiting room of Shanghai Station
Series 6: Let's Walk Festival
Series 7: Last long-distance drive
Series 8: My Car No. 3
Series 9: Ski camp
Series 10: Safari experience
Series 11: First encounter with dogwood
Series 12: Mt. Fuji
"Treasure Box of Words"
Series 1: Virtue brings profit
Series 2: Wait for a ripe moment
Series 3: Catch the symptoms
Series 4: Words are selected metaphors
Series 5: Start with two humans
Series 6: Optimism is a will, pessimism a mood
Series 7: Atop a summit, and another becomes visible
Series 8: We see only what we want to see
Series 9: Chanllenge is the privilage of the young
Series 10: Today is the first day of my life
Engineer Series 1: Who's engineer, juveniles' answer
Series 2: Corus of "We raise engineers!"
Series 3: From Nobel Prize to Gold Medal
Series 4: Professionals in three categories
Series 5: Various tasks in engineering
Series 6: Classification of EPs by IEA
Series 7: Science, technology and related professionals
Series 8: Proposal for the classification of engineers
Series 9: Revised proposal for the classification of engineers
Series 1 - 10: Whole Series including summary and remarks
Cartoon Series 1: Mechanism of viscosity
Series 2: Mechanism of loss generation
Series 3: Commuter packer and enthalpy
Series 4: Skinny grasshopper and fat pupa
Series 5: From hand-drawn picture to ready-made clip art
Series 6: Why do you learn? - 1
Series 7: Why do you learn? - 2
Series 8: Two Sciences
Series 9: Scientist and Engineer
Series 10: Science and Non-science
Series 11: Structure of human relations
Series 12: Oriental subconsciousness
Nostalgia Series 1: The first own car
Series 2: The first driver's license
Series 3: Comparison of German and Japanese Diploma
Series 4: The first air travel
Series 5: Tachometer used 60 years ago
Series 6: The three sacred calculators
Series 7: The first home computer
Series 8: Sentimental journey to Nordkapp
Series 9: Change of photograph
Series 10: Story of passport
Let's find facts! Final version revised in August, 2016.
Japanese universities found in statistics
Brief Self Introduction
Mail address: PGA02322@nifty.com
- Born in 1931 in Tokyo, male, married, two sons and five grandchildren.
175-2 cm (due to aging) / 66+ε kg (target; ε=zero, reality; ε=1), gray
hair with 20 % darkness. Lost wife in 2017 and live alone.
- Studied mechanical engineering. Five years industrial experience as a gas
turbine design engineer, including two years doctoral research at Technische
Hochschule Braunschweig, Germany.
- 1959-1992: 33 years education and research
at Mechanical Engineering Department of the University of Tokyo, specified
in fluids engineering with emphasis on the application to turbomachinery.
Emeritus Professor of the University after retirement.
- 1992-2003: 11 years education as Professor
of Mechanical Engineering of Kogakuin University, a private engineering college
established in 1887 with some 6000 undergraduate and 700 graduate students.
Nine years of that period were spent for administration of the University
as the President from 1994 through 2003. Emeritus Professor of the University
after the second retirement.
- 2003 to 2011: Chair, Board of Directors, Incorporated Educational Institution
"Kogakuin University". The Institution manages the University
along with two attached schools, a junior high and a high school.
- Advisor to Japan Federation of Engineering Societies (JFES) and Japan Accreditation
Board for Engineering Education (JABEE).
- Member of the Engineering Academy of Japan (EAJ).
Place of residence: Tokyo, Japan
Major Past Activities
- As the President and Chiar of "Kogakuin University":
The origin of Kogakuin
University was founded in 1887 as a private two-year college of technology. Responding
to the increasing needs for qualified engineers, it was converted in 1949
to a modern four-year university specialized in engineering education.
Tokyo Urban Tech, the sub-name of the University, comes from the facts
that the main campus is located at the heart of the Metropolis, and many
of our researches deal with engineering problems arising from urbanization.
More than 90 thousand graduates from our schools spread out to every sector
of industries and are supporting the basis of modern industrial society.
The total enrollment of our university and attached schools is around 8000.
The Board of Directors is responsible for the management and financing
of the Educational Institution.
- To Establish Engineering Profession in Japan: Modern society
is filled with human-made products that are planned, designed, manufactured
and operated by engineers. Engineers are responsible for the safety
and reliability of their products, similar to medical doctors who are responsible
for the health of people. Engineering profession of today must be quality-assured
with globally compatible standards. In accordance with this new requirement,
our Professional Engineers Act was revised in 2000 by the proposals compiled
by the Council of Professional Engineers of Science and Technology Agency,
and went into effect since April, 2001. Engineering education
is the basis of the profession and the quality must be assured by an accreditation
process. In November 1999, Japan Accreditation Board for Engineering
Education (JABEE) was founded as the accreditation agency representing
Japan. I am one of the founding members and have been supporting the
development and management of JABEE since its foundation. JABEE became the
provisional member of the Washington Accord in 2001 and became the 9th signatory
- Other past activities: Director, Hatakeyama Culture Foundation; Councilor,
Kurata Memorial Hitachi Science and Technology Foundation, etc
Membership of Academic/Professional
- Japan Society of Mechanical Engineers (President 92-93); Turbomachinery
Society of Japan (President 90-92); Multi-Phase Flow Society of Japan (President
91-93); Japan Society of Aero- and Astronautics; Gas Turbine Society of
Japan; Visualization Society of Japan; Japan Society of Hydro- and Pneumatic
Engineering; Japan Society of Fluid Mechanics; Chinese Mechanical Engineering
Society (Honorary Member 91- ).
- Engineering Academy of Japan (Member
- Japan Federation of Engineering Societies (President 99-03, advisor, fellow)
- Japan Society for Engineering Education (Vice-President 98-04)
- Japan Accreditation Board for Engineering Education (Vice-President 99-05,
President 05-09, advisor)
- Science Council of Japan (Council Member 91-00,
Director of Engineering Division 97-00, Member 06-11)
- Graduated from the Department of Mechanical
Engineering, School of Engineering, University of Tokyo in March 1954.
- April 1954 - June 1959: Design engineer
of gas turbine and industrial compressors at Ishikawajima Heavy Industries,
- October 1956 - September 1958: Research
student (on DAAD Stipend) with supervision of Prof. H. Schlichting at Technische
Hochschule Braunschweig, Germany. Obtained Dr.-Ingenieur Degree in August
1958 by the thesis work on tandem compressor cascades.
- July 1959 - March 1992: Faculty staff
at the Department of Mechanical Engineering, University of Tokyo, specialized
in fluids engineering and fluid machinery. Lecturer (1959), Associate Professor
(1960) and Professor (1976-1992). Professor Emeritus (1992-).
- April 1992- March 2003: Professor of
Mechanical Engineering at Kogakuin University. April 1994 - March 2003: President
of the University. Professor Emeritus (2003-).
- April 2003 - March 2011: Chair, Board of Directors,
Incorporated Educational Institution "Kogakuin University".
- Awards: Paper Award of Japan Society of Mechanical Engineers (1969, 1980,
1984 and 1993); Paper Award of Turbomachinery Society of Japan (1986);
National Medal of Honors with Blue Ribbon (1992, contribution to industrial
standardization); National Medal of Honors with Purple Ribbon (1997, contribution
for the progress of fluids engineering); Minister's Award of MITI (1987,
contribution to industrial standardization); Minister's Award of Science
and Technology Agency (1995, contribution to the safety of nuclear power
generation); Order of the Sacred Treasure, Gold Rays with Neck Ribbon (2011,
national conferment); Distinguished Engineer Award (2015, Asian Fluid Machinery
Committee); Distinguished Achievement Award (2018, Turbomachinery Sociedty
- Main research theme: Steady and
unsteady cascade flow; unsteady performance of turbomachinery; unsteady
fluid forces on whirling impellers of turbomachinery; unsteady loss
characteristics of piping elements such as branch, diffuser and step;
two-phase flow in turbopumps; instability of two- phase flow pumping
system; two-phase flow in two-dimensional cascades, analysis and experiment;
diffusion in turbulent wall jet; longitudinal diffusion in vehicle tunnels;
ventilation, safety and environmental problems of vehicle tunnels; numerical
simulation of vehicle fire in tunnels; environmental fluid mechanics.
The center of gravity of recent publications
has been shifting from those with the topics in fluids engineering to those
in engineering education. Please refer to Publications List of the recent papers written in