A simple micromanipulator.

نویسندگان

  • L J MANHOFF
  • M W JOHNSON
چکیده

Science, founded in 1880, Is published each Friday by the American Association for the Advancement of Science at the Business Press, 10 McGovern Ave., Lancaster, Pa. Entered as second-class matter at the Post Office at Lancaster, Pa., January 13, 1948, under the Act of March 3, 1879. Acceptance for mailing at the special rate postage provided for in the Act of February 28. 1925, embodied in Paragraph (d-2) Section 34.40 P. L. & R. of 1948. All correspondence should be sent to Science, 1515 Massachusetts Ave., N. W.. Washington 5, D. C. The AAAS assujmes no responsibility for the safety of manuscripts or for the opinions expressed by contributors. Four weeks' notice

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Simple and Rapid Method for Mounting Serial Sections for Electron Microscopy

A considerable need has been felt for a simple and reliable method of mounting serial sections for electron microscopy. Techniques so far published have necessitated special optical and micromanipulative equipment. An extremely simple and inexpensive micromanipulator capable of very fine movements in three dimensions was first described by Goldacre (1954). It consisted of several glass microsco...

متن کامل

Dahl Model-Based Hysteresis Compensation and Precise Positioning Control of an XY Parallel Micromanipulator With Piezoelectric Actuation

This paper presents a new control scheme for the hysteresis compensation and precise positioning of a piezoelectrically actuated micromanipulator. The scheme employs an inverse Dahl model-based feedforward in combination with a repetitive proportionalintegral-derivative feedback control algorithm along with an antiwindup strategy. The dynamic model of the system with Dahl hysteresis is establis...

متن کامل

Design and Analysis of a New High Precision Decoupled XY Compact Parallel Micromanipulator

With the development of nanotechnology that contains automatic control, precision machinery and precise measurement, etc., micro/nano manipulation has become a new research direction in recent years. This paper presents the design and analysis procedures of a new high precision XY decoupled compact parallel micromanipulator (DCPM) for micro scale positioning applications. The DCPM is made up of...

متن کامل

A simple technique for obtaining mating types in heterothallic diploid yeasts, with special reference to their uses in the genus Hansenula.

A procedure has been devised by which large numbers of ascospore isolates may be obtained from yeasts without the use of a micromanipulator and auxiliary costly laboratory equipment or a need for the exacting skills which such tools require. The procedure is being continually applied in this laboratory to the genus Hansenula. Some of the species of this genus produce many ascospores, but so few...

متن کامل

Bioc 471a/571a -applied Molecular Genetics Fall 2001 -dr. Roger Miesfeld

Generating transgenic mice using fertilized egg cells Purified experimental DNA is directly injected into the male pronucleus of a fertilized mouse egg using a microscope-mounted manipulator and microneedle. The three essential instruments for embryo injection are an inverted microscope with stage magnification of 400X, a micromanipulator-mounted negative pressure holding pipette (left) and a m...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Science

دوره 112 2899  شماره 

صفحات  -

تاریخ انتشار 1950