EXBIHIT 3.2.11

                                   SCIMEX, INC

                                     BY-LAWS

                                    ARTICLE I

                                     OFFICES

         Section 1.        The principal office shall be in the City of
Huntsville, County of Madison, State of Alabama.

         Section 2.        The corporation may also have offices at such other
places both within and without the State of Alabama as the Board of Directors
may from time to time determine or the business of the corporation may require.

                                   ARTICLE II

                            MEETINGS OF STOCKHOLDERS

         Section 1.        All meetings of the stockholders for the election of
directors shall be held in Huntsville, State of Alabama at such place as may be
fixed from time to time by the board of directors. Meetings of stockholders for
any other purpose may be held at such time and place, within or without the
State of Alabama, as shall be stated in the notice of the meeting or in a duly
executed waiver of notice thereof.

         Section 2.        Annual meetings of stockholders, commencing with the
year 1987, shall be held on the fourth Friday in October, or, if a legal
holiday, then on the next such day following that



day, at 10:00 a.m. at which they shall elect, by a plurality vote a Board of
Directors, and transact such other business as shall properly be brought before
the meeting.

         Section 3.        Written notice of the annual meeting shall be given
to each stockholder entitled to vote thereat at least ten days before the date
of the meeting.

         Section 4.        The officer who has charge of the stock ledger of the
corporation shall prepare and make, at least ten days before every election of
directors, a complete list of the stockholders entitled to vote at said
election, arranged in alphabetical order, showing the address of and the number
of shares registered in the name of each stockholder. Such list shall be open to
the examination of any stockholder, during ordinary business hours, for a period
of at least ten days prior to the meeting either at a place within the city,
town or village where the election is to be held and which place shall be
specified in the notice of the meeting, or, if not specified, at the place where
said meeting is to be held, and the list shall be produced and kept at the time
and place of election during the whole time thereof, and subject to the
inspection of any stockholder who may be present.

         Section 5.        Special meetings of the stockholders, for any purpose
or purposes, unless otherwise prescribed by statute or by the certificate of
incorporation, may be called by the president and shall be called by the
president or secretary at the request in writing of a majority of the board of
directors, or at the request in writing of holders of not less than one-tenth of
the entire capital stock of the corporation issued and outstanding and entitled
to vote. Such request shall state the purpose or purposes of the proposed
meeting.

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         Section 6.        Written notice of special meeting of stockholders,
stating the time, place and object thereof, shall be given to each stockholder
entitled to vote thereat, not less than ten nor more than fifty days before the
date fixed for the meeting.

         Section 7.        Business transacted at any special meeting of
stockholders shall be limited to the purposes stated in the notice.

         Section 8.        The holders of a majority of the stock issued and
outstanding and entitled to vote thereat, present in person or represented by
proxy, shall constitute a quorum at all meetings of the stockholders for the
transaction of business except as otherwise provided by statute or by the
certificate of incorporation. If, however, such quorum shall not be present or
represented at any meeting of the stockholders, the stockholders entitled to
vote thereat, present in person or represented proxy, shall have power to
adjourn the meeting from time to time without notice other than announcement at
the meeting, until a quorum shall be present or represented. At such adjourned
meeting at which a quorum shall be present or represented any business may be
transacted which might have been transacted at the meeting as originally
notified.

         Section 9.        When a quorum is present at any meeting, the vote of
the holders of a majority of the stock having voting power, present in person or
represented by proxy shall decide any question brought before such meeting,
unless the question is one upon which by express provision of the statutes or of
the certificate of incorporation, a different vote is required in which case
such express provision shall govern and control the decision of such question.

         Section 10.       Each stockholder shall at every meeting of the
stockholders be entitled to one vote in person or by proxy of each share of the
capital stock having power held by such stockholder,

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but no proxy shall be voted on after eleven months from its date, unless the
proxy provides for a longer period, and, except where the transfer books of the
corporation have been closed or a date has been fixed as a record date for the
determination of its stockholders entitled to vote, no share of stock shall be
voted on at any election for directors which has been transferred on the books
of the corporation within twenty days next preceding such election of directors.

         Section 11.       Whenever the vote of stockholders at a meeting
thereof is required or permitted to be taken in connection with any corporate
action by any provisions of the statutes or of the certificate of incorporation,
the meeting and vote of stockholders may be dispensed with, if all the
stockholders who would have been entitled to vote upon the action if such
meeting were held, shall consent in writing to such corporate action being
taken.

                                   ARTICLE III

                                    DIRECTORS

         Section 1.        The number of directors which shall constitute the
whole board shall not be less than three nor more than eleven. The first board
shall consist of three directors. Thereafter, within the limits above specified,
the number of directors shall be determined by resolution of the-board of
directors or by the stockholders at the annual meeting. The directors shall be
elected at the annual meeting of the stockholders, except as provided in Section
2 of this Article, and each director elected shall hold office until his
successor is elected and qualified. Directors need not be stockholders.

         Section 2.        Vacancies and newly created directorships resulting
from any increase in the authorized number of directors may be filled by a
majority of the directors then in office, though less

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than a quorum, and the directors so chosen shall hold office until the next
annual election and until their successors are dully elected and shall qualify,
unless sooner displaced.

         Section 3.        The business of the corporation shall be managed by
its board of directors which may exercise all such powers of the corporation and
do all such lawful acts and things as are not by statute or by the certificate
of incorporation or by these by-laws directed or required to be exercised or
done by the stockholders.

                       MEETINGS OF THE BOARD OF DIRECTORS

         Section 4.        The board of directors of the corporation may hold
meetings, both regular and special, either within or without the State of
Alabama.

         Section 5.        The first meeting of each newly elected board
directors shall be held at such time and place as shall be fixed by the vote of
the stockholders at the annual meeting and no notice of such meeting shall be
necessary to the newly elected directors in order legally to constitute the
meeting provided a quorum shall be present. In the event of the failure of the
stockholders to fix the time and place of such first meeting of the newly
elected board of directors, or in the event such meeting is not to be held at
such time and place so fixed by the stockholders, the meeting may be held at
such time and place as shall be specified in a notice given as hereinafter
provided for special meetings of the board of directors, or as shall be
specified in a written waiver signed by all of the directors.

         Section 6.        Regular meetings of the board of directors may be
held without notice at such time and at such place as shall from time to time be
determined by the board.

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         Section 7.        Special meetings of the board may be called by the
president on five days' notice to each director, either personally or by mail or
by telegram, special meetings shall be called by the president or secretary in
like manner and on like notice on the written request of the directors.

         Section 8.        At all meetings of the board a majority of the
directors shall constitute a quorum for the transaction of business and the act
of a majority of the directors present at any meeting at which there is a quorum
shall be the act of the board of directors, except as may be otherwise
specifically provided by statute or by the certificate of incorporation. If a
quorum shall not be present at any meeting of the board of directors the
directors present thereat may adjourn the meeting from time to time, without
notice other than announcement at the meeting, until a quorum shall be present.

         Section 9.        Unless otherwise restricted by the certificate of
incorporation or these by-laws, any action required or permitted to be taken at
any meeting of the board of directors or of any committee thereof may be taken
without a meeting, if prior to such action a written consent thereto is signed
by all members of the board or of such committee as the case may be, and such
written consent is filed with the minutes of proceeding of the board or
committee.

                             COMMITTEES OF DIRECTORS

         Section 10.       The board of directors may, by resolution passed by a
majority or the whole board, designate one or more committees, each committee to
consist of two or more of the directors of the corporation, which, to the extent
provided in the resolution, shall have and may-exercise the powers of the board
of directors in the management of the business and affairs of the corporation
and may authorize the seal of the corporation to be affixed to all papers which
may require it. Such

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committee or committees shall have such name or names as may be determined from
time to time by resolution adopted by the board of directors.

         Section 11.       Each committee shall keep regular minutes of its
meetings and report the same to the board of directors when required.

                            COMPENSATION OF DIRECTORS

         Section 12.       The directors may be paid their expenses, if any, of
attendance at each meeting of the board of directors and may be paid a fixed sum
for attendance at each meeting of the board of directors or a stated salary as
director. No such payment shall preclude any director from serving the
corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.

                              CHAIRMAN OF THE BOARD

         Section 13.       The board of directors at its first meeting shall
choose a Chairman from among the Directors.

         Section 14.       The Chairman shall have such powers as the board of
directors may from time to time prescribe.

                                 INDEMNIFICATION

         Section 15.       Each director or officer of this corporation, and
each person who at its request has served as an officer or director of another
corporation, partnership, joint venture, trust or other enterprise shall be
indemnified by this corporation against those expenses which are allowed by the

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laws of the State of Alabama and which are reasonably incurred in connection
with any action, suit or proceeding, pending or threatened in which such person
may be involved by reason of his being or having been a director or officer of
this corporation or of such other enterprises. Such indemnification shall be
made only in accordance with the laws of the State of Alabama and subject to the
conditions prescribed therein. The corporation may purchase and maintain
insurance on behalf of any such officers and directors against any liabilities
asserted against such persons whether or not the corporation would have the
power to indemnify such officers and directors against such liability under the
laws of the State of Alabama. If any expenses or other amounts are paid by way
of indemnification, other than by court order, action by shareholders or by an
insurance carrier, the corporation shall provide notice of such payment to the
shareholders in accordance with the provisions of the laws of the State of
Alabama.

         Section 16.       The indemnification provided herein shall not be
deemed exclusive of any other rights, in respect of indemnification or
otherwise, to which those seeking indemnification may be entitled.

                                    ARTICLE V

                                    OFFICERS

         Section 1.        The officers of the corporation shall be chosen by
the board of directors and shall be a president, a vice-president, a secretary
and a treasurer. The board of directors may also choose additional
vice-presidents, and one or more assistant secretaries and assistant treasurers.
Two or more offices may be held by the same person, except that where the
offices of president and secretary are held by the same person, such person
shall not hold any other office.

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         Section 2.        The board of directors at its first meeting after
each annual meeting of stockholders shall choose a president from among the
directors, and shall choose one or more vice-presidents, a secretary and a
treasurer, none of whom need be a member of the board.

         Section 3.        The board of directors may appoint such other
officers and agents as it shall deem necessary who shall hold their offices for
such terms and shall exercise such powers and perform such duties as shall be
determined from time to time by' the board.

         Section 4.        The salaries of all officers and agents of the
corporation shall be fixed by the board of directors.

         Section 5.        The officers of the corporation shall hold office
until their successors are chose and qualify. Any officer elected or appointed
by the board of directors may be removed at any time by the affirmative vote of
a majority of thee board of directors. Any vacancy occurring in any office of
the corporation shall be filled by the board of directors.

                                  THE PRESIDENT

         Section 6.        The President shall be the chief executive officer of
the corporation, shall preside at all meetings of the stockholders and, when
prescribed by the board, at meetings of the board of directors, shall have
general and active management of the business of the corporation and shall see
that all orders and resolutions of the board of directors are carried into
effect.

         Section 7.        He shall execute bonds, mortgages and other contracts
requiring a seal, under the seal of the corporation except where required or
permitted by law to be otherwise signed and

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executed and except where the signing and execution thereof shall be expressly
delegated by the board of directors to some other officer or agent of the
corporation.

                               THE VICE-PRESIDENTS

         Section 8.        The vice-president, or if there shall be more than
one, the vice-presidents in order determined by the board of directors, shall,
in the absence or disability of the president, perform the duties and exercise
the powers of the president and shall perform such other duties and have such
other powers as the board of directors may from time to time prescribe.

                     THE SECRETARY AND ASSISTANT SECRETARIES

         Section 9.        The secretary shall attend all meetings of the board
of directors and all meetings of the stockholders and record all the proceedings
of the meetings of the corporation and of the board of directors in a book to be
kept for committees when required. The secretary shall give, or cause to be
given, notice of all meetings of the stockholders and special meetings of the
board of directors, and shall perform such other duties as may be prescribed by
the board of directors or president, under whose supervision the secretary shall
be. The secretary shall keep in safe custody the seal of the corporation and,
when authorized by the board of directors, affix the seal __________ instrument
requiring it and, when so affixed, it shall be attested by the secretary's
signature or by the signature of an assistant secretary.

         Section 10.       The assistant secretary, or if there be more than
one, the assistant secretaries in the order determined by the board of
directors, shall, in the absence or disability of the secretary, perform the
duties and exercise the powers of the secretary and shall perform such other
duties and have such other powers as the board of directors may from time to
time prescribe.

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                     THE TREASURER AND ASSISTANT TREASURERS

         Section 11.       The treasurer shall have the custody of the corporate
funds and securities and shall keep full and accurate accounts of receipts and
disbursements in books belonging to the corporation and shall deposit all monies
and other valuable effects in the name and to the credit of the corporation in
such depositories as may be designated by the board of directors.

         Section 12.       He shall disburse the funds of the corporation as may
be ordered by the board of directors, taking proper vouchers for such
disbursements, and shall render to the president and the board of directors, at
its regular meetings, or when the board of directors so requires, an account of
all his transactions as treasurer and of the financial condition of the
corporation.

         Section 13.       If required by the board of directors, he shall give
the corporation a bond (which shall be renewed every six years) in such sum and
with such surety or sureties as shall be satisfactory to the board of directors
for the faithful performance of the duties of his office and for the restoration
of the corporation, in case of his death, resignation, retirement or removal
from office, of all books, papers, vouchers, money and other property of
whatever kind in his possession or under his control belonging to the
corporation.

         Section 14.       The assistant treasurer, or if there shall be more
than one, the assistant treasurers in the order determined by the board of
directors, shall, in the absence or disability of the treasurer, perform the
duties and exercise the powers of the treasurer and shall perform such other
duties and have such other powers as the board of directors may from time to
time prescribe.

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                                   ARTICLE VI

                              CERTIFICATES OF STOCK

         Section 1.        Every holder of stock in the corporation shall be
entitled to have a certificate, signed by, or in the name of the corporation by,
the president or a vice president and the treasurer or an assistant treasurer,
or the secretary or an assistant secretary of the corporation, certifying the
number of shares owned by him in the corporation.

         Section 2.        Where a certificate is signed (1) by a transfer agent
or an assistant transfer agent or (2) by a transfer clerk acting on behalf of
the corporation and a registrar, the signature of any such president,
vice-president, treasurer, assistant treasurer, secretary or assistant secretary
may be facsimile. In case any officer or officers who-have signed, or whose
facsimile signature or signatures have been used on, any such certificate or
certificates shall cease to be such officer or officers of the corporation,
whether because of death, resignation or otherwise, before such certificate or
certificates have been delivered-by the corporation, such certificate or
certificates may nevertheless be adopted by the corporation and be issued and
delivered as though the person or persons who signed such certificate or
certificates or whose facsimile signature or signatures have been used thereon
had not ceased to be such officer or officers of the corporation.

                                LOST CERTIFICATES

         Section 3.        The board of directors may direct a new certificate
or certificates to be issued in place of any certificate or certificates
theretofore issued by the corporation alleged to have been lost or destroyed,
upon the making of an affidavit of that fact by the person claiming the
certificate of stock to be lost or destroyed. When authorizing such issue of a
new certificate or certificates, the

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board of directors may, in its discretion and as a condition precedent to the
issuance thereof, require the owner of such lost or destroyed certificate or
certificates, or his legal representative, to advertise the same in such manner
as it shall require and/or to give the corporation a bond in such sum as it may
direct as indemnity against any claim that may be made against the corporation
with respect to the certificate to have been lost or destroyed.

                               TRANSFERS OF STOCK

         Section 4.        Upon surrender to the corporation or the transfer
agent of the corporation of a certificate for shares duly endorsed or
accompanied by proper evidence of succession, assignment or authority to
transfer, it shall be the duty of the corporation to issue a new certificate to
the person entitled thereto, cancel the old certificate and record the
transaction upon its books.

                           CLOSING THE TRANSFER BOOKS

         Section 5.        The board of directors may close the stock transfer
books of the corporation for a period not exceeding fifty days preceding the
date of any meeting of stockholders or the date for payment of any dividend or
the date for the allotment of rights or the date when any change or conversion
or exchange of capital stock shall go into effect or for a period of not
exceeding fifty days in connection with obtaining the consent of stockholders
for any purpose. In lieu of closing the stock transfer books as aforesaid, the
board of directors may fix in advance a date not exceeding fifty days preceding
the date of any meeting of stockholders, or the date for the payment of any
dividend, or the date for the allotment of rights, or the date when any change
or conversion or exchange of capital stock shall go into effect, or a date in
connection with obtaining such consent, as a record date for the determination
of the stockholders entitled to notice of, and to vote at, any such meeting,

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and any adjournment thereof, or entitled to receive payment of any such
dividend, or to any such allotment of rights,. or to exercise the rights in
respect of any such changes, conversion or exchange of capital stock, or to give
such consent, and in such case such stockholders and only such stockholder as
shall be stockholders of record on the date so fixed shall be entitled to such
notice of, and to vote at, such meeting and any adjournment thereof, or to
receive payment of such dividend, or to receive such allotment of rights, or to
exercise such rights, or to give such consent, as the case may be
notwithstanding any transfer of any stock on the books of the corporation after
such record date fixed aforesaid.

                             REGISTERED STOCKHOLDERS

         Section 6.        The corporation shall be entitled to recognize the
exclusive right of a person registered on its books as the owner of shares to
receive dividends, and to vote as such owner, and to hold liable for calls and
assessments a person registered on its books as the owner of shares, and shall
not be bound to recognize any equitable or other claim to or interest in such
share or shares on the part of any other person, whether or not it shall have
express or other notice thereof, except as otherwise provided by the laws of
Alabama.

                                  ARTICLE VII

                               GENERAL PROVISIONS

                                    DIVIDENDS

         Section 1.        Dividends upon the capital stock of the corporation,
subject to the provisions of the certificate of incorporation, if any, may be
declared by the board of directors at any regular or

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special meeting, pursuant to law. Dividends may be paid in cash, in property, or
in shares of the capital stock, subject to the provisions of the certificate of
incorporation.

         Section 2.        Before payment of any dividend, there may be set
aside out of any funds of the corporation available for dividends such sum or
sums as the directors from time to time, in their absolute discretion, think
proper as a reserve or reserves to meet contingencies, or for equalizing
dividends, or for repairing or maintaining any property of the corporation, or
for such other purpose as the directors shall think conducive to the interest of
the corporation, and the directors may modify or abolish any such reserve in the
manner in which it was created.

                                ANNUAL STATEMENT

         Section 3.        The board of directors shall present at each annual
meeting, and at any special meeting of the stockholders when called for by vote
of the stockholders, a full and clear statement of the business and condition of
the corporation.

                                     CHECKS

         Section 4.        All checks or demands for money and notes of the
corporation shall be signed by such officer or officers or such other person or
persons as the board of directors may from time to time designate.

                                   FISCAL YEAR

         Section 5.        The fiscal year of the corporation shall be fixed by
resolution of the board of directors.

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                                      SEAL

         Section 6.        The corporate seal shall have inscribed thereon the
name of the corporation, the year of its organization and the words "Corporate
Seal, Alabama". The seal may be used by causing it or a facsimile thereof to be
impressed or affixed or reproduced or otherwise.

                                  ARTICLE VIII

                                   AMENDMENTS

         Section 1.        The by-laws may be altered or repealed at any regular
meeting of the stockholders or of the board of directors or at any special
meeting of the stockholders or of the board of directors if notice of such
alteration or repeal be contained in the notice of such special meeting. No
change of the time or place of the meeting for the election of directors shall
be made within sixty days _______ before the day on which such meeting is to be
held, and in case of any change of such time or place, notice thereof shall be
given to each stockholder in person or by letter mailed to his last known post
office address at least twenty days before the meeting is held.

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