,!ffll詞
曲
Landscape Team Digs for Compliments
T he dictionarydefinition 州咖ape
gardening is "the art of laying out grounds in imitation of natural scenery’，因Aquick look around the campus, and most people would agree that landscape officer Jack Chan and his 19-s仕onghorticulture team have certainly worked
!!!!!L~
wonders in bringing a 盟”，和 touch of nature to aformer construction site.
But that
’
s not good enough for Jack and the ’,H-Team’,. They are con但stantly str甘mg to im-prove plant and tree displays, provide year-round color and keep of-fices in a plentiful supply of healthy greenery.
Odd as it may seem, the beautiful setting of the campus is a .hin -drance rather than a
help. One major problem is tl叫出esite is basically cut out of rock, leaving a very thin layer of topsoil. This does not affect shrubs, but it makes it difficult for trees to establish a really gocid root s仕ucture. ’，That’s why yc_;m see so many trees around the campus supported by bamboo poles," explains land-scape technician Prisca Tsui.
Combine this with the second problem, the exposed, north”east facing site, open to typhoons and strong win血， andyou start to understand why trees have such a hard time.
scaped area suffers drought conditions for five months out of every year.’,
As well as keeping things running smoothly on the maintenance front, the H-team devotes a lot of energy to changing and improving original planted displays.
Cor-recting the "mis-takes" made by landscape archi-tects, who design
the overall plan加gpl凹， shouldnot be such a big pr由lemfor the Phase III staff and sh1- . dent quarters, due for completion later this year.百吐stime, Jack and his team will have input at the design phase. "From O山，on-site experience we know what will and won't work species- and site-wise," says Jack.
All-year-round color is something that Prisca, who is in charge of the flowering plant displays, strives for. This means planning at least six months in advance to make the most of the brief flowering season of many plants, particu-larly the a1muals.’,This is a very challenging site. Keeping things looking good all year round takes a lot of planning," says Another major
prob-lem is water supply: in the dry season only three or four of the six original bore holes are operational at any o斗e 也肘，’，Thewa ter quantity from the bore holes is just not sufficient for all our landscaped ar-eas,’, says Jack.’,In fact,
about 60% of the
land-The need for pesticides has Pris凹， agreen-fingered horticul-dropped over the past 俗wyears. tural graduate from Guelph.
Certainly the staff and residents seem to be appreciative of the department's ef-forts.’,Staff often report back compliments that they’ve received when they’re work”
ing,’,says Jack. But they do get some
com-pl位ntstoo. The most common complaint is
"Why do you h·im the trees so much?’, There is a good reason for this, exp！也ns Jack, who is a foreshγgraduate. ’，Especially after typhoons, if a h·ee has been blown over we have to cut a lot of branches to minin:吐ze
仕1eamo山1tof water evapora自1gthrough the le抑的， Thisallows the h·ee to recover and get a root system established again.’,
In fact, Jack welcomes feedback from residents, staff and students alike. The H-team’s latest initiative, to use the copious ammmts of grass clippings as compost, was the result of a suggestion by a Genesis reader. Jack and his team will soon be the proud owners of two brand-new grass composters from the U.S., which should save them $20,000 in fertilizer a year.
、 Other complaints, mostly about the use of pesticides, have dropped over the past couple of years’ mainly because the horticulture team have been using fewer chemical pesticides since they introduced some environmentally friendly h·ea他1ents.These include using bio-logic祉 pesticidesand using the right sh·a
•
巴gyin pesticide application.But the main reason for the reduction is that, with the passing of tirn巴， theplanted areas have gradually matured and the nah1-ral ecosystem has re-established itself. In fact, bringing back a natural and balanced ecosystem to the campus is one of the hor-ticulture team
’
s main goals. As Jack says, ’,The best landscape is nature on its own.’,STUDE
N
TS-
Win
a free
lun
ch
!
Look for the challenge on page 2.
恭賀新禧
HAPPY
CHINESE NEW YEAR
Th
i
rd Patent for HKUST
E
\
rdayitemsstcould‘be set for perform缸1ce 凶1provementsin the future, thanks to a new magnetic sensor developed at HKUST. The device has been awarded a patent by the U.S. Patent Office, HKUST
’
s third and the first for the School of Engineering.can integrate the circuits there are lots of advantages such as lower manufacturing costs and more reliable and mor~ sensitive read heads.’,
But don
’
t expect to see an overnight revolution in the tape re-The new magnetic sensor was developed by Dr. Jack Lau, Dr.Clu-istopher C. T. Nguyen, Prof. Ping Ko and Dr. Philip Chan, all of the ·Department of Electrical and Electronic Engineering, and c紅ne out of Dr. Lau
’
s work for his PhD thesis. Dr. Lau was the Universi-ty’
s fir叫 PhDgraduate.According to Dr. Lau, the sensor
’
s big advantage is that it is made out of material that is compatible with silicon-based circuits.叭Thyis this so important? Dr. Lau explains:
cor吐ermarket-the invention still
has to go tlu-ough the development
stage to S凹 ifit is corr叮叮仗的lly vi-able. ’,There don’t seem to be any fundamental barriers but there might be manufacturing issues that we don’t know about,’, says Dr. Lau.
Manufacturing is still a long way off. Firlding a potential user
’,Typically irl magnetic recording devices you have a magnetic
read head and some circuits to process and amplify the signal. These
也·eusually made of completely different materials, which means they have to be manufactured as separate components.
The new device came out of Dr. who could act as a co-developer is
Lau's work for his PhD thesis. the immediate priority. Discussions
’,Because our magnetic sensor is designed using compatible
material, it can potentially be integrated with the circuits. Once you
have already begun with mainland-based, Hong Kong-owned manufacturers. But, as Dr. Lau pragmatically says of these
discus-sions:’,We'll see.’,
Wh
a
t I
s a
n
A
l
go
rithm?
~月ff,叭叭t
An
nlgori枷 is
asys-圖會J胃部 tematic step句也tep
pro-回轉軍F A曹亞 cedure for solving a
暉部J_Q哥觀 pr也lem.Given any
prob-蟬掛弱，腳融吾 lem,an algorithm f。rit is
t:J:i~.1•:::t：：山洞＇＂＇＂＂泊 aprocedure for solving it through a series of unambiguous steps.
The word comes from the title of the
La出 h·anslationof a book written in 825 AD by an Arabic scholai~ Muhammad Ibn Musa Al-Khwarizmi, who lived in what is now Iraq and Iran (mostly in.Baghdad). The book, which only survives in its Latin translation, is Algorit111i de Numero Indorum
(Al-Khwarizmi Concerning the Hindu Art of Reckoning). Algorithms perhaps originated in the work of ancient Hindu mathemati-cians who compiled rules for solving linear
and quadratic equations.
As an example, we show Eratosthenes
Sieve, an algorithm for finding all prime numbers 三 somegiven integer n. A prime number is a positive integer> 1 which is di” visible only by itself and 1. Here is the algori也mbyEratos也凹的
(3rd cenhuy BC).
Initial step Write all
inte-gers from 1 to n in a sequence
and sh·ike off 1. Set a pointer at
2 which is the first n山nberin the sequence
not yet struck o丘
General step Let r be the cmrent
posi-位onof the pointer. 1' is the next prime n山nber.
St但﹒出gyourcoun加gfrom
r,
strike off every’
2by Prof. Katta G. Murty
rth number in 血Esequence. Then move the pointer to the next number not struck o丘.If there is no such nurnbet~ the numbers not struck off are the primes 呈几 terminate.
0th-erwise, repeat this general step with the pointer at its new position.
For n = 10, at termination, here is the
sequence. 1 2, 3,
4, 5, 6,
7, 8，吼叫.Hence2,3,5, 7 位Eall the primes below 10.
Here is another classical problem for which Euler developed a beautiful algorithm in 1736 AD. In the figure we show the streets
(all two-way) in a Poshnan
’
s beat.The nodes are h·affic centers, and the arcs are the streets. He has to travel tlu.ough every sh·eet to deliver mail. Beginning at the post office, node 1, is tl1ere a way that he can
h＇的el 也rougheach sh·eet exactly once, and
rehrrn to the post o飢ceat the end? (E叫肘，s
algorithm: Find the degree of each node, which is the number of 也℃sincident at it. The
an-swer to the question is
’
yes’
if, and only if, all node degrees are even).An extension of Euler
’
s problem has been posed by a Chinese re-searcher Guan Mei-Gu in the context of finding op-timum routes for pos切1en'sbeats. Hence it is called tl1e Chi,悶tpostman problem. Anef-ficient algorithm is now available to solve it. A challenge. The heads of 10 countries in Europe, we will denote them by Hl to
HlO,aremee出gat a round table conference. Here is a list of all pairs of heads who speak a common language: (Hl, HZ), (Hl, HS), (Hl, H6), (HZ, H3), (HZ, H7), (H3, H4), (H3, HS), (H4, HS), (H4, H9), (HS, HlO), (H6, HS), (H6, H9), (H7, H9), (H7, HlO), (HS, HlO). It is required to find a seating arrangement of the heads around the table, so tl1at as far as possible, each head can talk to both his/her adjacent heads without a h·anslator. There will be a penalty of 10 if a head catmot speak
with either of his/her neighbors, and a
pen-alty of S if he/she can only speak with one neighb01~ without a h·anslator. Find a
seat-ing arrangement that minimizes the total penalty. The first S students who come up witl1 the optimum solution will be treated by me to a surnph1ous lunch. Send your s。一
lutions to me, Prof. Katta G. Murty, IEEM at Rm SS49, or e-mail to murti;@usthk.ust.hk.
These days
’
companies have to optimize their production costs, and provide high quality products at the least possibleco哎， inorder to survive in the market place. To optimize production costs, we construct
a mathematical model for a company
’
s op-erations, and solve it using an algorithm. Efficient algorithms have been developed for many types of problems, but the searchfor more efficient algorithms is one of the most exciting areas of research today.
♂Prof Murty kicks off n new occnsionnl co/1111111 i11 Gen-esis, en/led Ask the Expert. E-mnil your questions 011 popular scie11ce lo genesis or fnx to 2358 0537.
E且~且且且且皇島旦旦且!ill
E旬onomiCS Expe叫 Consult倒 in
Cricket
~isp晦
S ri
L叫an cricketing 伽 Muttiah
Muralitharan, the young bowler at the center of an international 記hucking’， dis pu妞， made a stealthy visit to the HKUST campus earlier this month for a series ofse-cret tests on his bowling teclmique. The tests were 趴ebrainchild of Dr. Ravi Goonetilleke, a lecturer in the Depar凶1ent
of Indush·ial Engineering and Eng泊eering Management, who vohmteered his ergo-nomics expertise to help resolve the inter-national dispute. Dr. Goonetilleke stepped into the rumpus in the hope that he could bring some hard scientific evidence to bear in the case.
The dispute centers around the conh·o-versial off-spinner Muttiah Muralitharan,
who was "no-balled
'’
by two differentum-. pixes during Sri Lanka's recent tour of Aus-tralia. The bowler was no-balled for
"chucking’， or 句hrowing’，－straightening
the bowling arm just
r
－國Ebefore releasing the ball. This is outlawed by the International Cricket Council.
But fue 23-ye扭
old bowler and his
supporters insist that he is not chucking.
Despite his having undergone four d匠，
ferent tests in Aush·alia, fue issue remains un” resolved as far as the ICC is concerned, and
a cloud hangs over fue young man
’
s career. When Dr. Goonetilleke heard about fue case on a recent holiday to his homecoun-try, he immediately thought of using ergo-nomics equipment to collect scientific meas-urements on the
change in elbow
an-gle. The Board of Con-trol for Cricket in Sri
Lanka (BC CSL)
agreed to give the technique a try and
sent fue bowle1~ who is nicknamed Murali, to Hong Kong for a
trial.
the bowler was chucking or not.
’,The tests were very
successful,’, sai'ct Dr.
Goonetilleke after a long weekend of recording and
Dr. Goonetilleke
’
s novel approachin-volved taping a lighι weight electrical
· analyzing.’,This is one of the most innovative and accurate methods available
to pinpoint precisely when
the ball is released- this is
critical for determining
whether a bowler is chuck-ing," says Dr. Goonetilleke. The test results have been
sent to the BCCSL and, says Dr. Goonetillek巴， it’s
up to them to take tl1e
is-D『：Goonetilleke adjusts the electrogoniometer. r , . , sue tmther. device-an elech·ogoniometer-to Murali
’
sbowling elbow. This device was set to meas-ure the angle of the elbow 500 times a second and record the in-formation in a portable
compu-ter. This is combined wifu a force
sensor on Murali' s 仙1ger. ’，Every
time he.
’
s holding fue ball tl1ere' sa reading on fue force sensor. The moment he releases tl1e ball tl1e
reading goes down to zero. That defines the point where he is
re-leasing fue ball, and we can see
whefu巴r fuere was a p訂tialor a complete
s仕aightenirigof fue elbow just before
deliv-ery," expl也mDr. Goonetilleke.
Just a quick look at the graphs of the two recordings is sufficient to see whether
It
’
s noteworfuy that the last few homs of testing were spent perfecting thetech-nique. 叮叮is in the hope that the ICC w山 eventually approve it for use in match con-ditions to help 山npires in fueir
decision-making. ’，它1eproblem is that according to the definition of chucking, you need to monitor two things: what is the po趴tof ball release and did his arm straighten?’,says
Dr. Goonetilleke.’,I don’t fuink it’s physi-cally possible for any human being to moni-tor that.’,
• A11 i11Jor111nl cricket practice takes pince every Snt11rdny Oil cn11圳sfrom 3 to 5幼p.111. 011 the Pl,耐 II[lmu11
nren. A11yo11e i11terested i11 joi川i11gi11 with these limited-over gnm郎， orsetti11g 11p matches with 011tside teams,
s/,011/d co11tnct Amnb Bisi th1日11ghe-mnil mabisi@ U泊nail.ust.l虫，
R胸前her
Tes·崎 Automated
Vehicle
Lice間 P個te
System at HKUST Gate
':Dr附
rs 叫ering
HKUST’
s main gate will be furthering the cause ofre-search for the next six
months.
Wi血 thehelp of EMO,
Dr. John C. M. Lee (Compu-ter Science) has installed his VELIN or Vehicle Licens巴 Reco伊itionsystem to dem-onsh·ate its operation to p。” tential buyers.
In less than one
sec-ond, a camera captures the
Using a Pentium 90mHz processor. a computer 臼n
accurately read a license plate in 0.7 seconds.
license plate and passes the image to a connected PC which reads the letters and numbers, checks them against a database of
author-ized vehicle IDs and beeps approval to the guards.
’官吐ssoftware-implemented ne盯alnetwork successfully
in-GENESIS, 22 Feb 1996
tegra tes different techi吐queswhich together make the
sys-tern fast, powerful and highly accurate,’,says Dr. Lee, who
with the help of graduate student Wing-Kin Wong has devel-oped several applications for this technology.
Several large companies and organizations have ex-pressed an interest in VELIN and will be visiting the campus
to see it r山ming.Sponsorship by the Sino-Software Research
A sensor in the 間dtriggers the system to capture the car license. A spotlight will allow the
camera to see at night.
Centre enabled Dr. Lee to set up the test-site.
Another application of this tech-nology is the reading of container iden-tification marks.百1atsystem,known as VECON, has proved to be 95%
accu-rate in any wea 出eror lighting
condi-tions. Already, VECON is being installed in a Shanghai port depot and
is capturing the attention of port
man-agers aroLmd the world.
For Love of a Good Argument
T hey love a good fight. A verbal bat-tle, that is.
This affection, call it need, for in-formed debate on current events brought together the eight mem-bers of the loosely organized group called CARE, or Current Affairs Research Enlightenment.
During the winter and summer breaks, the group works together to pro-~uce a larger, more comprehensive report
Each member of the group takes a turn at researching and writing a monthly short report on a subject of current interest. The January report, "Entering a Dark Era: Newspapers", tables the newspaper price war for discussion. The two-page report begins, "By the reduction of the cover price of 60% on 5th Dec. last
Current affairs junkies: Sophia Chun Fei Sung, Fion Siu Wah, Paul Ka-Wai Chan and Wilson Chiu Wai Sun.
year, Oriental Daily News brought- the local newspaper industry to its darkest and most chaotic era."
YEAR-ONE STUDENT PROFILE
on a given issue. Unemployment was the topic of last summer's report.
The group has a scheduled monthly meeting to discuss the reports.
To encourage wider participation, the group posts the reports on the student electronic notice board TIN.
"We enjoy the discussion very much," says Fion ~iu Wah, a 2nd year student in applied physics.
"At HKUST there is no humanities or arts faculty for undergraduates; most stu-dents are interested only in their subjects - engineering, science or business. They seem not to even have much of an idea about society, about what's happening in Hong Kong. We care about our society and we want to share this feeling with our classmates," says Sophia Chun Fei Sung, a 2nd year accounting student.
CARE welcomes all students inter-ested in current affairs to join them. Con-tact Wilson Chiu Wai Sun at his e-mail address:
[email protected].
Underweight
.
and
Unfit?
A .bout half of the incoming students who participated in the SAO comprehensive screen-ing exercise during reg-ish·a tion in August 1995 were estimated to be under-weight (37% male and 55% female).
The majority of the new sh1dents who did the physical fitness as-sessment part of the ex-ercise scored below av-erage in cardiorespira-tory functions, muscu-lar sh·ength and motor
Previous Physical Activity Level of Year 1 Students (95/96)
400 I 3501
E
300 1 Q) 250 'O :::, I 159 u5 2001 O Iil
'"
IJ
ci 150 z 50 low 300 249 91~-L
Moderate Vig.:-1 Hr. Vig.: 1 -6 Hrs. Vig.: +6 Hrs.
Physical Activity Over a Week
look for some norms on the physical fih1ess aspect," Theresa says, adding that there are no existing statistics on the average physical fitness levels of Asia's university-level students. The norms used as a measuring stick of fitness come from the West.
"There is also a potential for us to do cross analysis, to see whether there is a correlation between mental health and physical health," says Samuel Ho, a student counselor who made a brief presentation of the work SAO is doing to promote good health among students at an international health seminar in the United States
last summer. functions (general
bal-ance, speed of upper limb movement and nmning speed and agility).
The new Some 18% of respondents to the survey on physical activity said they did no physical activity
during a given week, while 38% did a moderate 1 O tp 60 minutes of physical activity a week. students are taking SAO's fitness message to heart, if the numbers registering for sports courses are anything to go by.
TI1ere is consolation in the fact that the in-comingclass of 1995-96 is similar to that of 1994-95, and that the vast majority want to improve their general fitness by participating in sports-92% of sh1dents surveyed said they would like to take part in a sports-related activity.
long basic fitness assessment (52% participated) or a two-hour-long intensive test (13%).
"We hope that in addition to their aca-demic career, students will think about wellness and how they can achieve this by participating in fih1ess programs," says Pandora Yuen, the senior SAO officer in charge of the comprehen-sive screening.
SAO uses the data to help plan sports and health programs.
"If students are made aware that their fit-ness level is low, they may be keener to join our sports courses," says Theresa Leung, a physical education officer.
Festival Fun
A . c~ive members of the Students' Un-ion certainly had their work cut out over the winter session-these guys weren't taking it easy, they were busy organizing the week-long Students' Festival '96. A full program of events, including a food festival, flea mar-ket, bookfair and tug-of-war, amongst other things, kicked off with an opening ceremony with President Chia-Wei Woo as guest of honor. The aim of the festival was "to pro-mote a sense of belonging among students, to allow our fellow schoolmates to partici-pate actively in
extra-curricular activities, to have fun and relax," says the SU. The Un-ion is also confident that an annual student festival wi.11 take its place as one of HKUST's h·aditions.
More
Stress; Less Smoking, Drinking
G -iven that health workers in Hong Kong are seeing the stress levels of the general population shoot up, SAO cow1selors were not surprised to find the 1995-96 incoming students more stressed out than their coun-terparts tested in 1994-95.
About 20.3% of the new sh1dents sur-veyed as part of the SAO comprehensive screening exercise experience some psymo-logical stress that needs further attention or more exploration, says Student Affairs Office co1mselor Samuel Ho.
In 1994, 15.7% of the new students who completed the general health questi01maire---an internationally recognized screening tool
' of mental health-were experiencing similarly high stress levels.
the cumulative effect can be worrisome." The good news is that the vast majority of HKUS'f students display highly positive coping skills.
Indices on smoking and drinking-both considered. by health practitioners to be nega-tive ways of blowing off steam-among new sh1dents are down from already low levels.
Of the 95% of new sh1dents answering the generalhealthquestionnaire, 0.5%said they smoke and 0.3% drink TI1ose figW"es are down from the 1.2% of incoming sh1dents in 1994-95 who said they smoked and 1.5% who said they drank.
Those who do smoke and drink consume an average of 4.7 cigarettes a day and the equiva-lent to 2.8 cans of beer a day.
Immediate feedback is the key to the suc-cess of the comprehensive screening exercise.
Upon completion of the general health questionnaire, which students score themselves, students know if their stress levels need atten-tion. If their scores are above the threshold, SAO
will give them a handbook on stress designed for university students and information about counseling services. SAO will also invite them back for reassessment three months later. The results from this year's follow-up exercise are not yet available.
For the second year rurming, the Sh1dent Affairs Office has mobilized its staff to test and probe incoming students during their regish·a -tion period with the aim of promoting students' awareness of their fih1ess level. Students vol-untarily fill out a general health questionnaire (95% of the 1,942 new students responded) and a survey on their physical activity level (94% responded) and participate in either an
hour-SAO has another, more long-range pur-pose in collecting this data. "We are trying to
"More than 700 new students en-rolled in our fall courses, but the dis-appointing thing is that most cannot stay with the course," Theresa says. "Once they have other com-mitments, they stop coming."
Basketball is one of the top five favorite sports of men surveyed.
"In general the stress level of Hong Kong people has gone up, maybe due to economic and political uncer-tainty," Samuel says. "It's not surprising that more students are tmder stress, though for most the sh·ess is h·ansient, re-lated to the anxieties of a new environment, moosingnew friends, at-tending lechu·es and reg-istering. But for some sh1dents, if their coping skills are not good and they face many hassles,
Samuel calls the screening preventive medi-cine. Sh1dents benefit both from the self-knowl-edge that results from taking part in the assessment, and from knowing that the Unive r-sity cares about them enough to conduct such a time-consuming exercise.
"This screening ach1ally reduces our reme-dial cotmseli.ng work," Samuel says.
~
4
GENESIS, 22 Feb 1996 GENESIS, 22 Feb 1996Q
Why should staff and students' ID be checked at sports facilities? I understand that a possible concern is that some people not affiliated with the University might use them. However, is the concern big enough to justify the hassle of carrying ID and the salary of several inspectors?A
Kenny Chow (Senior PhysicalEducation Officer): "Sports facilities are luxuries in Hong Kong, especially facilities that are well-maintained and where admission is free of charge. The.identity check is therefore necessary. Sports Attendants perform a variety of duties such as daily cleaning and routine mainte-nance of facilities, repairs and maintenance of sports equipment, venue and equipment arrangement for PE courses and special events, loan of equipment and other on-the-spot services and so
on-identity check is only part of their duties. In our experience,
if the facilities and equipment are not properly maintained, the maintenance and repJacement costs will be high and cause incon-venience to the users in general."
Q
I filed a complaint to the Campus Services Office inDecember after discovering a piece of rusted metal in a box of vegetables which I had bought at LG1. I later received a copy of the memo from CSO to the caterer concerning the complaint. I was quite disturbed to find that my name was mentioned. Unless you want to discourage customers from coming forward and pointing out what is wrong for the benefit of other customers, I don't think it is appropriate to
reveal the identity of the complainant. Also, is it possible to post a notice at all catering outlets on campus informing customers of the official complaints procedure?
A
Vivien Choi Cheung (DCSO): "We are sorry to learn that our procedures in handling users' feedback have disturbed one of your readers. Let me explain our current practice in respond-ing to complaints about the Coffee Shop, G/F Chinese Restau-rant, LGl Western Restaurant cl!1d LGl Cafeteria."In the case of comments about slow service, an unclean floor, menu variety, etc., we do not need to share specific information about the complainant with the caterer.
"But for feedback on an individual meal experience that may call upon the use of the penalty system*, such as rude service, foreign objects found in dishes, incorrect billing, etc., the caterers are required to understand the case in detail, including the venue, time, servers and users, and food item/ service involved. We expect the caterers to follow up on the complaint promptly and properly as part of good customer service.
"The procedure is not intended to deter users from lodging complaints, but rather aims to provide a channel for all parties involved to discuss and rectify the situation. To date the prac-tice has proved to be effective and well accepted by users and caterers. However, if some users do not feel comfortable with it, we will consider seeking approval from users before sharing information with the caterers.
"Regarding channels for reporting feedback on catering services, there is a suggestion box in each outlet along with comment forms."
*According to the pe11nlty system in the entering contract, the caterers
are required to pay the University $500 when a foreign object is found in food
(the case must be documented), $1,000 for the se.cond case within the same
month, and $2,000 for any additional incidents that month. The complninnnt
needs to report the case to CSO; CSO will verifiJ the incident and the penalty
will be invoked
if
the caterer is proved to be at fault."E-111nil your questions to genesis orfnx tile111 to 2358 0537.,
... 岳重﹔m•萃，．
“以害為先”的人事處
表斤年新結構。人事處最近改組 2 由過往的
三組（招聘、福利和策劃及總務組）增至五組， 由按職責分配工作改為以大學各部門為服務對 象，致力為科大的教職員提供高效而優質的服 務。︱組長
職責
︱
自一月八日起，人事處已改為五組》各自為 特定的部門服務。 人事處處長霍林佩文表示 3 人事處是／j;.:改組 的首要關注是提高以顧客為本的服務水平。同事 今後如有任何有關人事方面的問題，不管是招聘 程序 3 醫療償款，還是申請旅遊贅龍的僱主證 明，都只需與人事處其中一個小姐聯繁。 此外，她也希望透過改姐，讓科大各部門的 同事與人事處五個小姐有更多的接觸，建立更密 切的關係。 徑改組後人事處五個小組的組長及其負責的 部門詳見附表。 除了昕厲的人事處小組外，同事也可與分管 招聘、福利及總務的三名人事經理聯絡，她們分 別為陳碧姬、林美好及何佩賢。她們將勵賣協明 人事處處長制定及執行人事政策的工作。 李潔儀 內線 6599 電子郵遞。 p月什an 謝賣東 內線 6609 電子郵遞 popctse 李濁笑慧 內線。 6600 電子郵遞 posy/via 李瑞美 內線 6751 電子郵遞， po1ess1e 黃紀秋 內線：6605 電子郵遞 pome/ody.
人文社會科學學院院長辦公室及屬下兩個學部、秘書處、校園服務處、校 產管理處、學生事務處與安全及環保處。.
招聘行政事務助理。＊.
教學技術中心、計算及電訊中心、語吉中心、圖書館、實驗室事務處、材 料﹔則製中心、研究經費統籌處及技術轉移中心。.
招聘文員、高級文員及學生助理。.
工學院院長辦公室及屬下六個學系、微電子製進中心、機械工場、計算機 輔助設計及製造中心、高性能工程材料研究中心、研究中心、校長辦公 室、副校長（行政及總務）辦公室及副校長（研究及發展）辦公室。.
招聘高級助理主任、助理主任及行政助理。.
商學院院長辦公室及屬下六個學系、副校長（學術）辦公室、審計處、公 共事務處、策劃及協調處與大學基金發展處。.
招聘秘書、助理文員及辦公室助理員。.
理學院院長辦公室及屬下五個學系、入學註冊處、財務處、人事處及採購 處。 ＊一般議級（行故事務助理‘文員及泌書等）員工的招聘，仍將自 λ事處中央統籌，以精簡招聘程序﹒科大舉辦教育展覽
SOUVENm fl!:.弓，也 INFORl\直ATIONSHOP 噓，』Vii CENTRE
一一→達四天的第 六屆教育及職業博覽 會巳於二月人日假香 港會議展覽中心舉 行。在眾多攤位中， 科大的攤位煞是煜 目 ， 吸引數以萬計的 莘莘學子參觀。 今年科大的主 題，是科大一九九四 年第一批本科畢業生 的成就。該九名校友 分別畢業於理學院、 工學院及工商管理學 院，現於不同的機榜 工作，有的則赴海外 深造。他們都不約而同指出 ，三年來在科大聲益良多 ， 對他們畢業後不論開創事業或留學深造均大有幫助。回 顧在科大的歲月，他們都認同科大為他們提供一流的專 業訓練，為日後的事業打下穩健的根基。 為讓參觀者更深入了解科大的課程，理學院、工學 院及工商管理學院在展覽期間均舉行講座，介紹一九九 六／九七學年各個學院開辦的本科生及研究生課程。
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Managing Editor Paulette Flahavin
Editors Regina Chow Jacky Tsang
Maggie Verrall Ling Zhou
Design & Production Howard Chan
Hester Chau
Photography Leo Chan Butcher Poon
Genesis is published by the Office of Public Affairs
and printed by ETC on recycled paper. 。1996by The Hong Kong Unive『sityof Science and Technology. All rights reserved.
The next issue of Genesis will appea「 on Wednesday, 6 March 1996.
Cont『ibutionsare welcome. Deadline for submission is two weeks before publication date.
Send to e-mail add『essgenesis.
M蘊遍遍講團
拉曼光當登入藝俯殿堂
）、說“真貨價值千金
，
綿不值一錢”。無論是欣賞古書古畫，或
是收藏古董，誰都希望且可見所得的是貨真價實的真晶。然而，去偏存真 卻非一樁易事，一般人肉眼凡胎 ， 自然難辨真假，即使是高明的鑑賞 家，也有一籌莫展的時候。 從顏料顯粒中反射出來的散射光光譜。不要小看了這些散射光，它們好 似人的指紋，能反映出物質內部的化學結構特徵。拉曼光譜既方便快 捷，又無損畫面，並且它在高靈敏度、高精確度以及抗干擾性方面更是 令其他的儀#If望塵莫及。 如今己有許多現代化的分析儀器進入藝術殿堂，成為古代藝術品分 析鑑定的得力幫手﹔最近，又有一門新的光譜技術一一拉曼光譜一一邁 入了這一領域。不久前，應邀來科大講學的英國倫敦大學學院（University College London）化學系魯賓，克拉克（Robin Clark）教授，便是將
這門技術引入古代藝術品鑑定的科學家。
克拉克教授先後鑑定了大量的古畫和古書稿 3 包括十二、三世紀中
不同版本的 《聖經﹜ 、穆斯林《可蘭經〉 以及古代經文歌等 3 建成功地
鑑定了一些古代陶瓷製晶。
拉曼光譜在藝術領域裡的應用 3也為歷史學家提供了有價值的參考
資料。例如 ，天青石色顏料（lapis lazuli）原產於阿富汗的與者II庫什山
用光譜技術鑑定藝術品 ，主 要著重於對顏料成份與結構的分 析。五光十色的顏料，都是由不 同成份的固體化合物，磨成細 粉，拌以水或油製備而成。運用 拉曼光譜，能測定出微小顏料穎 粒的化學結構，再參考顏料的產 地、生產年代等輔助資料，鑑定 出作品問世的時間。鑑定技術除 了辨別真悔之外 ，對藝術品的保 存、修復和資料收集等都具有極 大的價值。 有許多分析技術，如電子掃 描顯微鏡、 X螢光光譜以及X1行射 光譜等，需要從原園中取些顏料 的樣品來分析。但許多古書稿因 年代久遠，非常脆弱易損，既不 易搬動，更無法取樣分析，令許 多儀擺也束手無策。而用拉曼光 譜，抵需將一東單色光對準畫面 脈，經拉曼光譜驗証，這種顏料早在 十三世紀就用在法國的書籍中 ，顯然 是通過賀易途徑流通到了法國。由此 可知，歐亞之間的悠貿交流比文獻所 記載的整整早了兩個世紀。 激光拉曼光譜技術是六十年代 初蠣起的一門分析技術，如今它的 應用範園己廣及化學、物理學、醫 學、生物學以及新型材料學等領 域，達到了難以取代的程度。科大 化學系系主任尤乃亭教授，便是一 位國際知名的拉曼光譜學家，他首 次將拉曼光譜引入生命科學領域 3 使它成為早期診斷白內陣、糖尿病 等疾病的有力工具。
照入，光譜儀便能清楚地記錄下 德國經文歌（GemanChoir Book）封面，經拉曼光譜鑑定，此書為十六世紀的作品。
拉曼光譜技術進入藝術領域， 更開拓了它的應用範圈 ，也使古代 藝術品的鑑定如虎添翼，用克拉克 教授的話說：“有拉曼光譜與其他 的分析方法相得益彰，鑑定技術一 定會發展得更完整。’，
