***The STORY of ROGER J. CHENG*** 鄭均華

ASRC UALBANY SUNY

纽约州立大学 大气科学研究中心 郑均华研究员

HOME
EXHIBIT
ATMOSPHERE
OCEAN
ENVIRONMENT
LET IT SNOW
SCIENCE
EDUCATION
COMMUNITY
SERVICE
CHINA
CONNECTION
CHENG'S
HAVING FUN
HOME
ATMOSPHERIC
SCIENCES
SNOW and ICE
CLOUD SEEDING
FREEZING
of A WATER DROP
FRAGMENTATION
of A FROZEN DROP
MELTING of
A FROZEN DROP
CHARGE within
An ICE CRYSTAL
PUBLICATION
and CITATION

***SEASON'S GREETING***

***季節的問候和 聖誕 新年快樂***

ROGER J CHENG: ASRC UALBANY SUNY

Roger J. CHENG & ASRC--(1968-2000)

From: ASRC REPORT
Roger J. Cheng joined the scientific staff of the Atmospheric Sciences Research Center (ASRC) at the State University of New York at Albany in 1968. There he worked with Vincent J. Schaefer and many others on the scientific staff of the ASRC. For over thirty years, aided by both the light microscope and the scanning electron microscope, his research interests ranged over a wide variety of problems. His discoveries have been recognized both nationally and internationally.

One of Cheng’s early interests, along with that of Schaefer’s, was the mechanism by which ice particles are produced in clouds. His microscope observations revealed that one way is from the surface of freezing water drops. He found that they carried a negative charge. Years later, this was confirmed by cloud physicists ( Dr. E. R. Williams'term ) at the Massachusetts Institute of Technology.

Cheng has long been interested in the marine sea-salt aerosol. Produced by the sea, primarily by the bursting of bubbles at the surface, the small droplets of seawater are carried high into the marine atmosphere by turbulent mixing and convection. There the droplets can change phase to produce the sea-salt aerosol. It has long been assumed that sea-salt particles are solid spheres and that their mass can be calculated if one knows their diameters. But Cheng, using the scanning electron microscope, found that the particles are not solid but hollow, thus making calculations of their mass very difficult. Cheng’s discovery has been confirmed by German cloud physicists ( Dr. H.R. Pruppacher's term ) at Institute of Atmospheric Physics.

An interesting observation made by Cheng was that sulfate particles were ejected from a droplet of seawater when it changed phase. He believes that this phenomenon can play an important role in the global sulfur cycle.

From the Taj Mahal to the Imperial Palace in Peking to numerous cities in the industrialized nations, gases and particles of the world’s atmosphere are rapidly eating away at stone and monuments that have withstood the onslaught of the winds of the centuries. Cheng turned his attention to this problem. His experiments led him to believe that much of the trouble begins when sulfur dioxide reacts with liquid water on the surface of the stone to produce sulfuric acid. Small airborne particles then act as a catalyst in the reaction to change some of the stone to gypsum, a crumbly material much different from the original hard, smooth surface. Air pollution attacks not only stone but leaves on trees and other vegetation. Cheng’s experiments with a scanning electron microscope and an energy-dispersive x-ray micro-spectrometer have revealed that a concentration of industrial particulates and small sulfate crystals are found around the damaged area of the leaves. As with the case of damage to stone, the leaves are damaged primarily by sulfuric acid.

Few scientists have traveled as often as Cheng has to scientific conferences around the world. Although President Nixon may have been responsible for opening the doors to cultural and scientific interaction with the People’s Republic of China, Cheng wasted little time in passing through these doors. In his first visit since he left China many years earlier, Cheng presented fourteen seminars and visited twenty-five universities, research institutes, and government and local environmental protection agencies. In the other direction, Cheng has visited and given seminars and presentations at many universities and international conferences in Europe and Russia.

Cheng has received international recognition not only for the science revealed by his photographs obtained by the light microscope and the scanning electron microscope, but also for their elegance and beauty. For years these photographs have been in wide demand by editors of both popular and scientific magazines. One graced the cover of SCIENCE magazine.

In addition to his published articles, Cheng was a co-author of the book "Air Pollution and Control". This book, endorsed by the Director of the Chinese National Environmental Protection Bureau, was published in Chinese by the Chinese Environmental Science Service. It was distributed to national, state, and city environmental officers as a handbook and to universities and research institutes as reference materials. The book was the first of its kind in the Chinese language.

In 1978 Cheng received the Chancellor’s Award for Excellence in Professional Service. This high award is granted to University professional service staff members who have demonstrated outstanding job performance.

Although Roger Cheng retired from the Atmospheric Science Research Center in 2000, this has not decreased his enthusiasm for science. He has plans for more visits to China and to other countries. But best of all, he has produced a CD-ROM containing all his papers, magazine covers, and many hundreds of his photographs. This work of a very active lifetime will be encapsulated in this CD-ROM.

 

 

   

JUNE 4th, 2010
MATIONAL TAIWAN
NORMAL UNIVERSITY
   

 

SERENDIPITY in SCIENCE-Twenty Years at Langmuir University

An Autobiography by DR. Vincent J. SCHAEFER

MY MENTOR, TEACHER & FRIEND

*******************************************************************************************************************************

ROGER J CHENG: ASRC UALBANY SUNYA

纽约州立大学,大气科学研究中心 郑均华研究员

  Chapter 13
Vince's Colleagues Recollect

A Life Inspired by Dr. Schaefer

The first time I saw Dr. Vincent J. Schaefer’s name was during my student research in a library on the subject of ice and crystal growth in 1965. I was one of the team members of Dr. Seymour Hess's group at Florida State University. We were in the process of designing a very sensitive hygrometer for Martian exploration for a NASA project.

I wrote to Dr. Schaefer for advice and for suggestions on our task. He wrote back and mentioned a new Department of Atmospheric Sciences was just formed at the State University of New York at Albany, and was a newly emerging scientific field.

I transferred to Albany in 1968 and Dr. Schaefer offered me a job working ten hours a week for $1.25 an hour at the newly formed Atmospheric Sciences Research Center (ASRC). I stayed there for the next thirty-three years!

On one snowy day, I was sitting with Dr. Schaefer in his basement and with a beer in hand I talked with him about the coming new science education arrangement. He pointed to the window and said to me, "Roger, see those tiny ice particles falling from the frosty gutter on the edge of the house? I have been watching this phenomenon for many years I Just could not figure out what is going on there, why don't you look into the problem?"

Ten months later. I gave him a report showing the way that the ice crystals had been broken up and how they carried negative electric charges. He wrote a paper entitled "The production of ice crystal fragments by sublimation and electrification" and very surprisingly with my name as co-author (Dr. Schaefer had very few co-authors for his publications at ASRC). It was published as the featured cover article in the Journal de Recherches  Atmospheriques in 1971. This paper was cited later by the New York Times, London Times, New Scientist, as well as Russian television and many governmental publications this research I had conducted was later confirmed in 1991 by scientists at MIT.

This small technical report was the beginning of our ten years of research on the subject of ice crystal formation and related electrical charges generated in a thundercloud. By the order of Dr. Schaefer a laboratory to study and assist other ASRC scientists on the subject of atmospheric particulates was created and I was appointed its manager At his suggestion I began playing with snowflakes under three different types of microscopes and was the author of five technical reports. My photographs of the snow crystals and reports were all selected by the editors as the featured cover articles.

During my years with Dr. Schaefer I assisted him with his Natural Sciences Institute, one of his pet projects, (science education) and even babysat his students when he was working in the field.

His methods were clearly summed up when he said on August 15, 1960: "As long as we give young minds the privilege and the facilities to roam far and wide, and from time to time to play with unpractical things such as snow crystals, water drops, they are bound to come up with some exciting new angles on the mysteries of nature."

He always said to his students and to me as well: "Go and get your dream! Do not give up and let anyone or anything stop you! Please enjoy it and have fun!"

I did.

Roger J. CHENG 2013 ASRC UALBANY

http://www.squarecirclepress.com/books/SerendipityinScience.htm

 

  • DEDICATION to the MEMORY of DR. SCHAEFER and DR. VONNEGUT
  • MY MENTOR, TEACHER and FRIEND

  • In MEMORY of DR. WALTER C. McCRONE
  • MY MENTOR and TEACHER
\

 

  • CHANCELLOR'S AWARD-(SUNY) to CHENG from
  • DR. MOHNEN and DR. SCHAEFER

 

The MICRO-WORLD in the ATMOSPHERE-

KEY WEB PAGES from: GOOGLE SEARCH

Roger J. CHENG: ASRC SUNY UALBANY

 

大气中的微观世界系列--1.大气 The MICRO-WORLD in the ATMOSPHER...
rogerjcheng.com/index.php -  科学教育 网站介绍 1.大气 2.雷雨 3.环境 4.海洋----纽约州立大学,大气科学研究中心郑均华研究员主持的科学教育项目 ...

大气中的微观世界系列--2.雷雨 The MICRO-WORLD in the THUNDERSTORM ...
rogerjcheng.com/The%20MICRO-... - 
一粒云水滴在雷暴云形成过程中三次物理变化阶段(冰冻,冰晶繁生与溶解) 及起电主因(基 于热学电学效应)过程中的显微观察,测试研究报告 ...

大气中的微观世界系列--3.环境The MICRO-WORLD in OUR ENVIRONMENT ...
rogerjcheng.com/The%20MICRO-... - 
ASRC WHITE-FACE MT. FIELD RESEARCH STATION. Roger J. CHENG, ASRC UALBANY SUNY. ****大气中的微观世界系列---工业污染、酸雨形成及生态环境影响-

大气中的微观世界 系列--4.海洋 MARINE AEROSOL-海洋气溶胶
rogerjcheng.com/MARINE%20AEROSOL%20PORJECT-...Share
SEARCH INDEX-The MICRO-WORLD in the ATMOSPHERE series · Roger J. CHENG, ASRC UALBANY SUNY · 纽约州立大学,大气科学研究中心 郑均华研究员

大气中的微观世界系列--人 工 冰 晶 3-D SNOW CRYSTAL-NATURE ...
rogerjcheng.com/3-D%20SNOW%20CRYSTAL%20b... - 
早在三十年代,大气科学家已经认识到,有时盼雨雨不来的关键原因是云体中缺乏足够的冰晶。天公不作美,人工如何补救呢?1. 946年美国舍弗(Scheafer)博士发现 ...

大气中的微观世界系列--北京沙尘--BEIJING SAND DUST-1982
rogerjcheng.com/CHINA%20DUST.htm -
http://en.cnki.com.cn/Article_en/CJFDTotal-YYQX2002S1020.htm. AIR SAMPLE from The CITY of BEIJING, CHINA-1982 北京 沙尘--电镜的观察

大气中的微观世界 系列-- 三滴水珠的研究故事 The STORY of THREE WATER DROPS  ...
rogerjcheng.com/THREE%20WATER%20DROPS%20... -
1, SCIENCE (1970) **** · "Water Drop Freezing: Ejection of Micro-droplets" · 2, JOURNAL de RECHERES ATMOSPHERIQUES (1971) **** · "The Production of ...

ASRC 大氣坏境研究室,白面山實驗站-RESEARCH STATIONS, LAB ...
rogerjcheng.com/ASRC%20FIELD%20RESEARCH%2... - 
ASRC WHITE-FACE MT. FIELD RESEARCH STATION. Roger J. CHENG, ASRC UALBANY SUNY. ****大气中的微观世界系列**** ...

科学教育展览会 : EXHIBIT-The STORY of THREE WATER DROPS ...
rogerjcheng.com/EXHIBIT-SHOW.htm -
EXHIBIT-The STORY of THREE WATER DROPS · NEW YORK SCIENCE CENTER · PRESENTED by: ROGER J CHENG ASRC UNIVERSITY at ALBANY SUNY ...

郑均华研究员主持的科研项目-PUBLICATION & BOOKS by ROGER J . CHENG..
rogerjcheng.com/PUBLICATIONS%20&%20BOOKS... -
3, The MICRO-WORLD in our ENVIRONMENT. A, CHARACTERIZATION of POWER PLANT EMISSION--OIL and COAL; B, ACID RAIN ...

 

同中国的联系国际合作交流项目-CHINA CONNECTION -SCIENTIFIC EXCHANGES... rogerjcheng.com/CHIN简 历. 姓名:(中)郑均华 (英)ROGER J. CHENG. 服务单位:纽约州立大学,大气科学研究中心. 职位:研究员(终身聘用)(Tenured & Emeritus) ...

中美大气环境科学交流- CHINA CONNECTION-SCIENTIFIC ACTIVITY
rogerjcheng.com/CHINA%20CONNECTION-SCIENT... 
郑均华 约州立大学,大气科学研究中心. 职位:研究员(终身聘用)(Tenured & Emeritus) ...

中美大气污染生态影响学术讨论会-1985 U S-CHINA AIR POLLUTION ...
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郑均华美国纽约州立大学大气科学研究中心研究员美国代表团副团长,翻译,唯一美籍华人代表. 主办单位: 江苏省南京市植物研究所 中国科学院环境化学研究所 ...

室內空氣汚染暨環境衞生研討會-WORKSHOP on INDOOR AIR ...
rogerjcheng.com/... -
ECOLOGICAL EFFECT. ALBEDO of CLOUDS. BUILDING EROSION. ATMOSPHERIC PTS. CARBONACEOUS PTS. AIR POLLUTION CONTROL. REFERENCE: ...

空气污染与控制--ENVIRONMENT-AIR POLLUTION CONTROL
rogerjcheng.com/ENVIRONMENT-AIR%20POLLUTI... - 
作者介绍 沈铎(Thomas T.Shen)教授:美国纽约州政府环保署高级研究员 纽约哥伦比亚大学环科系兼任教授 美加空气污染防治学会技术委员会委员 郑均华(Roger J.CHENG) ...

工业排放与气候变化--CLIMATE CHANGE
rogerjcheng.com/ENVIRONMENT-CLIMATE%20CH... - 
ABSTRACT. We examine the radioactive properties of clouds containing submicron soot Particles as impurities. The soot particles are assumed to be distributed ...

工业污染、酸雨形成及生态环境影响 ENVIRONMENAL SCIENCE ...rogerjcheng.com/ENVIRONMENTAL%20SCIENCE-... - 
通过开展显微镜测量,具体形象的揭示了工业污染排放的二氧化硫及其界面氧化反应. 在酸雨形成过程中的主要特征以及它们在建筑腐蚀、植被灼烧等方面的生态 ...
ACID RAIN FORMATION...

科学教育 网站介绍--The MICRO-WORLD in the ATMOSPHERE ...
rogerjcheng.com/The%20MICRO-... -
大气中的微观世界系列****. 科学教育 网站介绍. 1.大气 2.雷雨 3.环境 4.海洋. 纽约州立大学,大气科学研究中心郑均华研究员主持的科学教育项目 ...

重庆南开中学- NANKAI MIDDLE SCHOOL-CLASS-1948-CHENG
rogerjcheng.com/NANKAI%20MIDDLE%... -
郑均华校友:重庆南开中学48级学生. HOME. EXHIBIT. ATMOSPHERE. OCEAN. ENVIRONMENT. LET IT SNOW. SCIENCE EDUCATION. COMMUNITY SERVICE ...

季節的問候和聖誕 新年快樂--SEASON GREETINGS from ROGER J .CHENG
www.rogerjcheng.com/... - 
LET IT SNOW! LET IT SNOW! LET IT SNOW!*** · ***SEASON'S GREETING*** from ROGER J CHENG. ***季節的問候和聖誕 新年快樂***from--郑均华 ...

 


***The 50 Years ANNIVERSARY***
ATMOSPHERIC RESEARCH & SCIENCE EDUCATION 
大气科学研究 科学教育
ATMOSPHERIC SCIENCES RESEARCH CENTER-(ASRC)
The UNIVERSITY at ALBANY SUNY NEW YORK USA
PRESENTED by: ROGER J. CHENG---
鄭均華

http://rogerjcheng.com/The%2050%20YEARS%20ANNIVERSARY--%E5%A4%A7%E6%B0%A3%E7%A7%91%E5%AD%B8%C2%A0%E7%A0%94%E7%A9%B6%20&%20%E7%A7%91%E5%AD%A6%E6%95%99%E8%82%B2-%E9%84%AD%E5%9D%87%E8%8F%AF-FINALX.jpg

http://rogerjcheng.com/  大气中的微观世界 系列
http://www.rogercheng.com/  意外在科学的发现-观察与思考
http://rogerjcheng.com/EXHIBIT-SHOW.htm  科学教育展览会

ASRC-CHENG-FINAL.jpg


SEARCH INDEX-

The MICRO-WORLD in the ATMOSPHERE

SCIENCE EDUCATION series

Roger J. CHENG-ASRC-SUNY-UALBANY

纽约州立大学,大气科学研究中心 郑均华研究员主持的科研项目

HOME
EXHIBIT
ATMOSPHERE
OCEAN
ENVIRONMENT
LET IT SNOW
SCIENCE
EDUCATION
COMMUNITY
SERVICE
CHINA
CONNECTION
CHENG'S
HAVING FUN
 
 
ATMOSPHERIC
SCIENCES
SNOW and ICE
CLOUD SEEDING
FREEZING
of A WATER DROP
FRAGMENTATION
of A FROZEN DROP
MELTING of
A FROZEN DROP
CHARGE within
An ICE CRYSTAL
PUBLICATION
and CITATION