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 daily life and my thoughts and experience are introduced.

From Daily Life - 86: Digital records of life

 As we get older, the records of the past just keep piling up. I started using a Nolty Planner to write down my schedule and notes in 1960, and since then I have 65 of them lined up on my shelves. I also have a considerable amount of records of my life that I wrote myself, such as diaries and travelogues. I also have certificates from various occasions of my life, such as graduation certificates, degree diplomas, awards, and orders of appointment. In terms of volume, the largest amount of space is taken up by offprints of papers I have published in academic journals. All of these are physical, paper-based records. If they burn, nothing will remain.
 In the 1980s, personal computer use began to grow rapidly. It was around that time that the habit of keeping records as digital files began. In the 1990s, software that is convenient for creating databases became rapidly popular, and the digitization of life records became firmly established. Below, I would like to introduce how I have made the best of digital records.
 I use the database software Access for most of my digital records, but when I need to do a lot of calculations between items, such as financial records, I use the spreadsheet software Excel.
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1. Personal data (Access): In addition to an address book to keep addresses and phone numbers, I record the following items for each person with whom I have had contact or corresponded; classification code, birthday, family composition, education/work background, New Year's card exchange history, special notes (memos, etc.). Classification codes are related to the sending of New Year's cards, such as 0 for deceased, 1 for sending before year-end, 2 for receiving and replying, 3 for no exchange, and f for sending jointly to the recipient's spouse. The New Year's card exchange history records all sending and receiving since 1974. Currently, there are about 1,300 Japanese and 110 foreigners registered. This is the data base I use most frequently.
2. Papers and career data (Access): This is my professional activity history, and includes the following data.
・Publications (list of titles and journal names of over 800 published papers, editorials, commentaries, essays, etc.)
・Lectures (list of titles, dates, and locations of approximately 200 lectures)
・Appointments (list of approximately 400 appointments issued by government agencies, universities, public corporations, academic societies, etc.)
・Academic society activities (list of assignment and award records of 20 academic societies (14 domestic, 6 foreign))
3. Student guidance data (Access): A list of the names, years, and thesis titles of students who completed their bachelor's, master's, or doctoral theses in my laboratory. 280 students from the University of Tokyo and 180 from Kogakuin University are recorded. Doctoral theses include those that were written without completing a graduate school course.
4. Business card data (Access): A list of the names, affiliations, and positions of business cards received since 1970. 5,300 Japanese and 550 foreigners are recorded. This is extremely useful when searching for old business cards.
5. Financial Data (Excel): Bank deposits, the assessed value of investment trusts, etc., and total financial assets are listed at the end of each month. In addition, income such as salary, miscellaneous income, and pension, as well as income tax and resident tax, are listed at the end of each year to overview the annual trends.
6. Medical Examination Data (Excel): Health examination results, mainly blood test results, are listed by items. Fluctuations in test values from 140 examinations from 1994 to the present can be seen. Test items include standard ones such as blood cell count, cholesterol, triglyceride, protein, and blood sugar, as well as test values under observation such as PSA (prostate-specific antigen) and NT-pro BNP (heart failure assessment).
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 These digital records have been accumulated over nearly 50 years, so I don't feel like I have spent much time on them. But looking back, I am impressed by the perseverance I have shown in updating my records. If we upload files to the cloud, we can check our past anytime, anywhere on the smartphone. We live now in an age where such a miracle is the real. What I introduced here is just an example in the digital age.
 The total recording capacity of these text-based data is less than 40 MB (megabytes). It easily fits on one USB memory. The USB memory shown in the photo above, a small lump of plastic weighing 7 grams, is a can of life records.
The digital records introduced this time do not contain a huge amount of image data. The total storage capacity of image data reaches TB (terabytes), which is incomparable to text-based records.
 When humans die, they leave behind personal belongings. The left family members have done their best to decide the fate, memento or discard. From now on, in addition to physical visible belongings, there will also be invisible belongings stored in storage media. How should we deal with the latter? This is a problem that humanity has never faced before. The left family members will surely be bewildered.



→ 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
        
26: Ambulance
        
27: Quick report on drive monitoring
        
28: Hearing aid
        
29: Jindai Botanical Park
        
30: 2020, a historic year
        
31: Topics of eye
        
32: Final report on drive monitoring
        
33: Cognitive ability test
        
34: PCI to prevent heart infarction
        
35: Ashikaga Flower Park
        
36: 90 years old supported by medication
        
37: 3 years with Subaru
        
38: 45 years living in Seijo
        
39: Caspian Sea yogurt
        
40: Home Museum of Aunt Zschäbitz
        
41: Reunion of university classmates
        
42: Okutama spar tour
        
43: New Year's greeting card
        
44: Implant
        
45: Fuchu Forest Park
        
46: Grave closing
        
47: Walking group of local community
        
48: How-to books for the elderly
        
49: Home altar
        
50: Such a life
        
51: Knee of the elderly
        
52: Metropolitan Kinuta Park
        
53: Shirakaba Art Museum of Kiyoharu
        
54: Haiku; Metasequoia
        
55: Three years with COVID-19
        
56: Battlefield rations in the 6th year
        
57: Hearing impairment
        
58: Shinjuku Station
        
59: Haiku with photograph
        
60: Moving to 5G smartphone
        
61: History of private cars
        
62: Setagaya Art Museum
        
63: FreeCell
        
64: Turbo
        
65: Hinata Temple of Yakushi
        
66: Moving of home computer
        
67: Amakusa tour
        
68: Hand craft as a hobby
        
69: Kitami Community Square
        
70: Photo-Haiku 2
        
71: Support scam abusing Trojan Horse
        
72: Bedside gym
        
73: Metropolitan Nogawa Park
        
74: Family funeral
        
75: Sudoku (Number Place)
        
76: Photo-Haiku 3
        
77: Ohyama Afri Shrine
        
78: Kunisaki Peninsula tour
        
79: The old school system is far away
        
80: Cooking group of local community
        
81: Motor fan group of local community
        
82: Directories disappear!
        
83: Tunnel ventilation
        
84: Hearing aid renewal
        
85: Photo-Haiku 4

   
"Memorable Scenes"
          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

   
The others

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Let's find facts!  Final version revised in August, 2016.

Japanese universities found in statistics

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Brief Self Introduction
Mail address: PGA02322@nifty.com
Place of residence: Tokyo, Japan

Major Past Activities

Membership of Academic/Professional Societies

Curriculum Vitae

Recent Publications

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 English.