The IEEE Newsletter
A Publication of the IEEE North Jersey Section
February 2002 Newsletter
North Jersey Section Activities
NJ Communications
Society: ECN and the TCP Paradigm
NJ PES/IAS: Electric
Motor Seminar
Spring 2002 Student
Presentation Contest Call for Abstracts
E-Week 2002 Kits Now
Available
NJ PES/IAS:
Electromagnetic Compatibility: Principles and Applications
IEEE North Jersey
Section Course INTRODUCTION TO JAVA PROGRAMMING
IEEE North Jersey Section Course OBJECT-ORIENTED PROGRAMMING
February
2002
Volume 48, Number 8
Publication No: USPS 580-500
"The IEEE Newsletter" (North Jersey Section), is published monthly except June and July by The Institute of Electrical and Electronics Engineers, Inc. Headquarters: 3 Park Avenue, 17th Floor, New York, NY 10016-5997. $1.00 per member per year (included in annual dues) for each member of the North Jersey Section. Periodicals-class postage paid at New York, NY and at additional mailing offices. Postmaster send address changes to: "The IEEE Newsletter", 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331. USPS 580-500 (ISSN 1076-3732).
NEWSLETTER
STAFF
Editor:
Keith Saracinello
Business Manager: Theresa Saracinello
Deadline for receipt of material is the 1st of the month preceding the month of publication. All communications concerning editorial and business matters, including advertising, should be sent to the Business Manager via e-mail at mailto:k.saracinello@ieee.org or to The IEEE Newsletter, c/o Keith Saracinello, 25 Messenger Ln, Ringoes, NJ 08551, (732) 465-4067.
IEEE
NJ SECTION HOME PAGE http://www-ec.njit.edu/~ieeenj/
IEEE NJ SECTION NEWSLETTER HOME PAGE http://www-ec.njit.edu/~ieeenj/NEWSLETTER.html
REPORT
ADDRESS CHANGES TO:
IEEE Service Center, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331,
(732) 981-0060. It is not necessary to inform the North Jersey Section when you
change your mailing address. "The IEEE Newsletter" and other section
mailings use a list provided by IEEE's national headquarters.
SECTION
OFFICERS
Chairman: Dr. Nirwan Ansari, mailto:nirwan.ansari@njit.edu
(973) 596-3670
Vice-Chairman-1: Rodney Cole, mailto:rgcole@ieee.org
(973) 299-9022 Ext. 2257
Vice-Chairman-2: Milton Korn, mailto:miltonkorn@aol.com
(973) 365-2757
Treasurer: Durga Misra, mailto:dmisra@njit.edu
(973) 596-5739
Secretary: Wayne Owens, mailto:wowens@crestron.com
(201) 767-3400, ext. 226
Members-at-Large:
Bhanu Chivakula mailto:b.chivakula@computer.org
Naz Simonelli mailto:naz@sprynet.com
Dr. Richard Snyder mailto:r.snyder@ieee.org
The North Jersey Section Executive Committee usually meets the first Wednesday (except holidays and December) of each month at 7:00 PM. Meetings are open to all members. For information on meeting agenda contact Secretary Wayne Owens at (201) 767-3400, ext. 226, or mailto:wowens@crestron.com
IEEE North Jersey Section Activities
February 2002
Feb. 1-Application Deadline for
27th Annual Trenton Computer Festival Call for Speakers. See http://www.tcf-nj.org/spkr_reg.shtml for details.
Feb. 6-" NJ Section Executive
Committee Meeting" - 7:00 PM, ITT, 100 Kingsland Rd, Clifton, NJ. Wayne
Owens at (201) 767-3400 ext. 226 or mailto: wowens@crestron.com .
Feb. 13-Apr. 24 -" Introduction
to JAVA Programming " - North Jersey Section, Wednesday Evenings, 10
sessions, 6:30-9:00 PM, BAE Systems (formerly GEC-Marconi), 164 Totowa Road,
Wayne, NJ. Bhanu Chivakula at b.chivakula@computer.org.
Feb. 28-"Selling the Value of
Consultants" - NJ Consultants' Network, 7:30 PM, MCE/KDI Integrated
Products, 60 S. Jefferson Road, Whippany, NJ. Robert Walker (973) 728-0344 or http://www.TechnologyOnTap.org/.
Upcoming Meetings
Mar. 5-Apr. 9 -
"Object-Oriented Programming"- North Jersey Section, Tuesday and
Thursday Evenings, 10 sessions, 6:30-9:00 PM, BAE Systems (formerly
GEC-Marconi), 164 Totowa Road, Wayne, NJ. Bhanu Chivakula at b.chivakula@computer.org for details.
Mar. 6-"NJ Section Executive
Committee Meeting" - 7:00 PM, ITT, 100 Kingsland Rd, Clifton, NJ. Wayne
Owens at (201) 767-3400 ext. 226 or mailto:wowens@crestron.com.
Mar. 22 - "Electromagnetic
Compatibility Seminar: Principles and Applications" - NJ IAS/PES Chapters,
9:00 AM to 3:00 PM, location TBA. R. Vittal Rebbapragada, PE, (609) 720-3209 or
mailto:r.rebbapragada@ieee.org.
Apr. 26 - "Electric Motor Seminar" - NJ IAS/PES Chapters, 9:00 AM to 3:00 PM, Longo Industries, Wharton, NJ. Additional details, registration procedures and fees will appear in the March Newsletter. For additional information contact Ken Oexle at (973) 386-1156.
Apr. 26 & 27-"The 11th
Annual Wireless and Optical Communications Conference", 8:00 AM
Registration, 9:00 AM Opening Remarks, Marriott Hotel, Newark Airport, Newark,
NJ. Details can be found on http://www.wocc.org/.
Apr. 28 - "NJ Section Awards
Reception" - 3:00 to 6:00 PM at the Birchwood Manor, 111 North Jefferson
Rd, Whippany, NJ. Anne Giedlinski (973) 377-3175.
May 4 & 5-"27th Annual
Trenton Computer Festival",10:00AM. See http://www.tcf-nj.org/
for details.
Members
and Non-Members Welcome
PLEASE POST
The North Jersey Section IEEE
congratulates the following members who were elected to the Fellow grade:
Mihai Banu
"For contributions to the art
of fully integrated continuous-time >analog-filter design."
Sankar Basu
"For contributions to theory and
application of multidimensional circuits, systems, and signal processing."
Robert M. Goldberg, ITT
Industries
"For contributions to military
test and measurement equipment."
James David Johnston,
AT&T Labs - Research
"For contributions in
perceptual audio coding and its standardization."
Jelena Kovacevic, Bell Labs/Lucent
Technologies
"For contributions to the
theory of signal representation."
Krishnaswamy Nagaraj, Texas
Instruments
"For contributions to the
design of CMOS data converters."
Ulrich Lothar Rohde, Synergy
Microwave Corp.
"For contributions to and
leadership in the development and industrial implementation of microwave
computer-aided design technology."
Richard Dale Schlichting, AT&T
Labs - Research
"For contributions to
fault-tolerant computing and distributed systems."
Juergen Schroeter, AT&T Labs -
Research
"For contributions to
text-to-speech synthesis technology."
ECN
and the TCP Paradigm
On February 13, 2002, the IEEE
North Jersey Section Communications Society Chapter along with NJIT will host a
presentation on "ECN and the TCP Paradigm." The speaker will be Dr.
Teunis J. Ott.
In TCP, packet loss is used by the
source of a TCP flow to gauge congestion and to adapt the congestion window to
the level of congestion in the network. In RED, this mechanism is used by
routers to signal, by preemptively dropping packets, congestion to the sources.
ECN (Explicit Congestion Notification,
see RFC 3168, Floyd and Ramakrishnan, September 2001) replaces
"dropping" with marking the signaling Mechanism. The most obvious
advantage is that marked packets do not need to be re-transmitted. Derived
advantages are that the marking rate can be arbitrarily large, and thus the
amount of information "signaled" can be much greater.
This allows for jointly designing
new router and source behaviors.
The most likely payoff of such a
joint design is to make it possible for "best effort" type traffic to
efficiently utilize the bandwidth left unused by higher priority (say VoIP,
Video) traffic.
A mathematical model that
illustrates the kind of investigation required will be presented, and
simulation results show that even with a fairly naive approach it is possible
to improve QoS to low priority traffic, without doing damage to higher priority
traffic.
Preparatory reading can be found in
http://web.njit.edu/~ott/Papers/index.html Square
Root Law, ECN, and Milcom2001.
Teunis J. Ott is a Professor in the
Department of Computer Science at NJIT. Before joining NJIT he was, for 23 years, a researcher in computer
networking and computer performance at Bell Laboratories, Bellcore, and
Telcordia.
Dr. Ott studied mathematics at the
University of Amsterdam and Operations Research at the University of Rochester.
He probably is currently best
known for his work on the Square Root Law for TCP.
All
Welcome!
You do not have to be a member of
the IEEE to attend. Bring your friends.
Time:
2:30 PM (refreshments start at 2:15 PM), Wednesday, February 13, 2002.
Place:
New Jersey Institute of Technology (NJIT), Room 202, ECE Center, Newark, NJ.
Directions are available at http://www.njit.edu/.
Electric
Motor Seminar
The PES and IAS Chapters will
present a technical seminar on the fundamentals of electric motor selection,
application and maintenance.
Additional
details and registration procedures and fees will appear in the March
Newsletter.
Time:
9:00 AM - 3:00 PM, Friday, April 26, 2002.
Place:
Longo Industries, Wharton, NJ.
Information:
Ken Oexle at (973) 386-1156.
On
Thursday evening, February 28th, 2002, the IEEE Consultants' Network of
Northern NJ (CNNNJ) will sponsor a short seminar entitled, "Selling the
Value of Consultants." The seminar will be conducted by the owners of Special Graphics, a creative marketing agency located in Rockland County.
"Selling the Value of Consultants" is a presentation on marketing, advertising and the creative process that gives us an opportunity to look at ourselves through the eyes of our prospects.
Partners
Deborah Mesibov and Richard Feldman will discuss what goes into communicating
and selling the value of consultants, including:
*
Marketing precepts
* The
marketing, advertising and creative processes
* A brief case study, based on the
Rockland Business Association Consultants Council
Ms.
Mesibov and Mr. Feldman started Special Graphics in the fall of 1982. The
agency is known for its work in direct mail, consumer product packaging,
trade
show display, and publicity. Ms. Mesibov is the Creative Director of Special
Graphics and is a 1975 graduate of the School of Visual Arts in New
York
City. She currently conducts corporate training graphic design classes in Adobe
Photoshop, Illustrator and Quark Express. With 20 years of
experience
in direct mail, database management, print and display development, Mr. Feldman
directs the development of new business for the
firm. He
is a published copywriter, providing the foundation of publicity for the agency
and its clients.
The
agency is an award winning member of the Ad Club of Westchester, a member of
the NJ Commerce & Industry Association, the Rockland Business
Association,
the RBA Consultants Council, and the Eastern Perishable Products Association.
Additional information can be found by visiting the agency's website at http://www.specialgraphics.com/.
The IEEE Consultants' Network of Northern NJ was founded in 1992 to encourage and promote the use of independent technical consultants by business and industry.
All Welcome!
You do not have to be a member of the IEEE or of the Consultants' Network to attend. Networking after the meeting is encouraged. There is no charge for admission.
Time:
7:30 PM, Thursday, February 28, 2002.
Place:
MCE/KDI Integrated Products, 60 S. Jefferson Road, Whippany, NJ. (Use the rear
entrance)
Information: For directions and
up-to-date meeting status, call Robert Walker (973) 728-0344 or visit our
website at www.TechnologyOnTap.org.
Spring 2002 Student Presentation Contest Call for Abstracts
The new
spring-02 student presentation contest is coming up! The North Jersey Section
will be holding a presentation contest scheduled for late-February or
early-March of 2002. This year's host will be New Jersey Institute of
Technology.
If you missed last month's
newsletter article, you can check out the details on the web at the URL located
at the bottom. The exact date and time have not been set but the registration
process has begun.
You can
find there the local section rules, guidelines and how you will be judged on
the presentation. More importantly, follow the link to the registration and
abstract submission page and submit your presentation topic today!
Any and
all questions can be emailed to the contest organizer, mailto:a.j.patel@ieee.org
and check out the website: http://ewh.ieee.org/r1/north_jersey/sac
E-Week 2002 Kits Now Available
National Engineers
Week 2002 is 17-23 February and now is the time to request your free E-Week kit
from IEEE-USA or the E-Week Website.
The kit
features information on the exciting new E-Week program, ZOOM Into Engineering.
Based on ZOOM, the popular PBS series, ZOOM Into Engineering pairs fun
activities for 6-12 year olds with opportunities to interact with engineers.
The kit
also includes "50 Ways You Can Participate" in E-Week, a planning
calendar, talking points, E-Week poster, tips for working with students and a
product catalog and order form.
To
request your kit, contact Rita Hamilton at 202-785-0017, ext. 8354 or mailto:r.m.hamilton@ieee.org.
You can also get one by visiting
https://shop.eweek.org/eweek/ and clicking "Promotional Materials."
Electromagnetic
Compatibility: Principles and Applications
The IEEE North
Jersey Chapters of IAS/PES will host a one day Seminar on "Electromagnetic
Compatibility: Principles and Applications" on Friday March 22, 2002 in
the vicinity of Morristown, NJ.
The
seminar will be conducted from 9:00 AM to 3:00 PM, with breaks for lunch and
coffee. The seminar will cover the following topics:
*
Introduction to EMI environment
* Sources
of conducted and radiated EMI
*
Standards governing the EMI Design Guidelines and Test Practices
* EMI
Measurements, Control Requirements, and Test Methods
* EMI
Issues from Variable Speed Drive Applications
*
Harmonics and its Role in EMI
*
Mitigation Techniques: Shielding, Bonding and Grounding
The
seminar is designed for engineers, contractors, and consultants that are
involved with selection, application, and installation of micro-processor based
control and protection systems, distributed control systems, power electronic
devices such as variable speed drives in industrial, residential, commercial,
and electric utility installation such as generating stations and substations.
This
seminar will be conducted by Mr. R. V. Rebbapragada, PE who has industry
recognized experience with over 25 years of experience in the area of Electro
Magnetic Compatibility. The registration fee for this seminar prior to March
15th will be $175 (non-IEEE members), $125 (IEEE Members), and $50 (students
with valid ID). Registrations after March 15th must include an additional late
fee of $25. The seminar fee includes lunch, refreshments and handouts.
Non-members joining IEEE within 30 days of the seminar will be rebated 50% of
the IEEE registration charge.
Time:
9:00 AM to 3:00 PM, Friday, March 22, 2002.
Place:
For details look for the March 2002 Newsletter Announcement
Information:
R. Vittal Rebbapragada, PE, (609) 720-3209 or mailto:r.rebbapragada@ieee.org.
Registration:
Electromagnetic Compatibility Seminar - Principles &
Applications,
3/22/2002
Register
via US mail to:
K. Oexle
11
Deerfield Rd
Whippany,
NJ 07981
Name: /
Mr. / Mrs. / Miss / Ms. / _____________________________________________
Address:________________________________________________________________
_______________________________________________________________________
Phone__________________
Email ____________________________________________
IEEE
#_________________ Student @___________________________ Non IEEE_____
Payment
Enclosed $_______________ Add $25 late registration after March15th
Make
Check payable to North Jersey Section IEEE
North
Jersey Section
April 28,
2002
Birchwood
Manor, Whippany NJ
A time to
relax, unwind and enjoy --
A time to
pay tribute to our new Fellows --
A time to
honor our Award Winners --
YES it's
time for the Annual Section Reception
The
Annual Section IEEE Awards Reception will be held at the Birchwood Manor, 111
North Jefferson Road, Whippany again this year. The affair is scheduled for
Sunday, April 28, 2002 from 3 to 6 PM. Tickets are $35.00 each and include a
complete prepaid, two-hour open bar, hors d'oevres, buffet, and dessert.
Spouses and guests are welcome. We are limited to 90 attendees, so please make
your reservations early.
Reservations
are required by April 22, 2002. Complete the reservation form and return it
with your payment. If you would like tickets mailed back to you, please enclose
a self-addressed stamped envelope. Otherwise, your tickets will be held at the
door for you. If any additional information is required concerning the
reception, contact Anne Giedlinski at (973) 377-3175.
****************************************************************************
Use this
form for Reception reservations. ENCLOSE A SELF-ADDRESSED STAMPED
ENVELOPE
to receive tickets in advance. Reservations are required by April 22, 2002.
Mail reservation request to:
Anne
Giedlinski
299
Brooklake Road
Florham
Park, NJ 07932
Enclosed
is __________ for ____ ticket(s) at $35.00 each (make check payable
to North
Jersey Section IEEE) for:
NAME:
___________________________________________________________________
ADDRESS: ________________________________________________________________
__________________________________________________________________________
The Eleventh
Wireless and Optical Communications Conference 26-27 April, 2002, Newark
Airport Marriott Hotel, Newark, New Jersey, USA
IEEE North
Jersey Section Course
INTRODUCTION TO JAVA PROGRAMMING
Wednesday Evenings, February 13,
2002 through April 24, 2002 (No class on March 27) Ten weekly classes (February
13, 20, 27, March 6, 13, 20, April 3, 10, 17,
24, 2002)
BAE Systems (Formerly GEC-Marconi),
164 Totowa Road, Wayne, NJ (Checks should not be mailed to this address)
The North Jersey Section IEEE is
offering an evening course entitled "Introduction to Java
Programming." Java Programming has gained enormous popularity in corporate
Information System applications as well as in advanced Webpage Design since
1996. About 2.5 million Java Programmers are currently working on all types of
commercial projects in the world, ranging from cell phone applets, to UNIX
server, to mainframe data-warehouse access. Since Java is similar to C++, it is
an easier transition for C++ Programmers. This course, however, will be for
anyone even he/she never took a programming course. The instructor will provide
the necessary software (compiler and editor) for everyone to get started
immediately from ground zero!
Instructor: Donald Hsu, has been a
corporate manager for 11 years and is an experienced trainer. Since 1997, he
trained 150+ people in Java Programming and Advanced Java Programming courses
in five organizations.
TOPICS
1. Explain the dynamic growth in
Java Programming
2. Contrast the importance of AWT,
CGI, JavaScript and HTML
3. Classify the different types of
Java applets vs Java applications
4. Identify the control structures,
arrays and classes
5. Construct character strings and
graphics tools
6. Define multithreading, files and
streams
7. Draw multimedia, animation and
Swing images
8. Build audio files, JavaBeans and
networking applications
9. Distinguish Java utilities,
error handling, serialization and reflection
10. Analyze real-world projects
using SDK 1.3 development tools
Class size will be limited to a
maximum of 25 with a minimum of 15. Early registration is recommended. Phone
reservations will NOT be accepted.
Reservations accepted after
February 1, 2002 will require a late fee of $25.
No reservations will be accepted
after February 6, 2002.
WHERE:
BAE Systems (Formerly GEC-Marconi),
164 Totowa Road, Wayne, NJ. (Checks should not be mailed to this address)
WHEN:
10 Sessions, Wednesdays, February 13,
20, 27, March 6, 13, 20, April 3, 10, 17, 24, 2002, 6:30-9:00 PM.
COST:
With textbook or notes: IEEE (&
affiliate) members $300; Non-IEEE members $400.
CONTACT:
Bhanu Chivakula - email mailto:b.chivakula@computer.org
_________________________________________________________________
REGISTRATION:
Introduction to Java Programming
Please send checks with
registration form to Bhanu Chivakula, 19 Prestwick Way, Edison, NJ 08820 and
direct inquiries via email to mailto:B.Chivakula@computer.org
with sender's address and postmarking the envelope "Java
Programming". (Checks payable to "North Jersey Section IEEE"
with registration form should be mailed to this address)
Name: / Mr. / Mrs. / Miss / Ms. /
______________________________________
email address
___________________________________________________________
__ Non-member
__ IEEE Member Member
#:_________________________
Member of
_____________________________ technical society
Employer:_________________________________________________________________
Employer
Address:_________________________________________________________
Home Address:_____________________________________________________________
Business (day) telephone
#:___________________________________
Home telephone
#:________________________________
Please enclose required fee payable
to: North Jersey Section IEEE Registration status will be mailed after February
6, 2002. Phone inquiries concerning registration will NOT be honored. In
general, the effective date of the application corresponds to the date when
BOTH a fully completed application/registration and payment are received.
__ Tuition receipt will be mailed
only if this box is checked
Signature:___________________________________________
_________________________________________________________________
Tuesdays and Thursdays (bi-weekly)
on March 5,7,12,14,19,26,28,April 2,4 and 9.
BAE Systems (Formerly GEC-Marconi),
164 Totowa Road, Wayne, NJ
(Checks should not be mailed to
this address)
ABSTRACT
The Object-Oriented concept is
almost universally used today in new design and programming work. Instead of
focusing on functionality (what the programs do) it focuses on the natural
objects comprising the problem and how they, and their capabilities, are modeled
in the program.
This object-oriented programming
course will emphasize C++, because it is the richest language, but will also
cover corresponding capabilities in Java and C#. The course will begin with the
concept of objects and then extend inward to the contents of objects, and
outward to groupings of objects that constitutes solutions to practical
problems.
AUDIENCE
Programmers who want to learn to
understand and program, primarily in C++, but also in Java or C#. Knowledge of
procedural ('old-style') programming is not necessary to take the course, but,
because object-oriented programming is not elementary, a familiarity with such
foundation programming concepts will be very helpful.
COURSE TOPICS
* Object-Orientation: Objects and
classes of objects; declaration and instantiation; how to represent objects.
Methods & attributes, constructors and destructors. Concept of interobject
communication by messages. Encapsulation & abstraction. Keywords.
* Attribute representation: Data
naming, typing and scoping. Declaration & instantiation. Intrinsic data
types: int, float, char, bool, etc. Extended data types: strings, structures,
arrays, defined data types. Constants and parameters. Casting. Namespaces.
* Method representation: Function
naming and overloading. Arguments and returns. Statements and statement
grouping. Declaration & instantiation. Operators. Static.
* Conditional and repetition
operators; Subfunctions.
* Mechanics of program creation:
Compilers, emulators, jit. Formatting, layout, debugging, testing, asserts.
Documentation and comments. O-O design, UML, development tools.
* Input and Output: Streams:
Standard I/O, formatted I/O with manipulators, File and device I/O.
* Interaction of Objects:
Inheritance: base, abstract, virtual, derived classes. Overloading, interfaces,
polymorphism. Dynamic and static objects, garbage collection;
* Interfaces and multiple
inheritance. Properties. this, friend, new. Pointers, references, handles.
* Extending Object capabilities:
operator overloading, inter-type conversions, object I/O. Containers and
iterators. Interface classes. Libraries and templates.
* Special topics: Real life
applications, embedded programs, real-time programs.
* Introduction to O-O Windows
programs. Interaction, widgets, mouse, resources and properties.
Class size will be limited to a
maximum of 25 with a minimum of 15. Early registration is recommended. Phone
reservations will NOT be accepted.
Reservations accepted after
February 19, 2002 will require a late fee of $25. No reservations will be
accepted after February 26, 2002.
WHERE:
BAE Systems (Formerly GEC-Marconi),
164 Totowa Road, Wayne, NJ. (Checks should not be mailed to this address)
WHEN:
10 Sessions, Tuesdays and Thursdays
on March 5, 7, 12, 14, 19, 26, 28, April 2, 4 and 9; Time: 6:30-9:00 PM
COST:
With textbook or notes: IEEE (&
affiliate) members $300; Non-IEEE members $400.
CONTACT:
Bhanu Chivakula - email mailto:b.chivakula@computer.org
_________________________________________________________________
REGISTRATION:
Object Oriented Programming
Please send checks with
registration form to Bhanu Chivakula, 19 Prestwick Way, Edison, NJ 08820 and
direct inquiries via email to mailto:B.Chivakula@computer.org.
Please superscribe the letter "Object Oriented Programming" and
include return address. (Checks payable to "North Jersey Section
IEEE" with registration form should be mailed to this address. )
Name: / Mr. / Mrs. / Miss / Ms. /
______________________________________
email address
___________________________________________________________
__ Non-member
__ IEEE Member Member #:_________________________
Member of
_____________________________ technical society
Employer:_________________________________________________________________
Employer
Address:_________________________________________________________
Home Address:_____________________________________________________________
Business (day) telephone
#:___________________________________
Home telephone
#:________________________________
Please enclose required fee payable
to: North Jersey Section IEEE Registration status will be mailed after February
26, 2002. Phone inquiries concerning registration will NOT be honored. In
general, the effective date of the application corresponds to the date when
BOTH a fully completed application/registration and payment are received.
__ Tuition receipt will be mailed
only if this box is checked
Signature:___________________________________________
_________________________________________________________________