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Books > Science & Mathematics > Science: general issues > Scientific equipment & techniques, laboratory equipment
The Transmission Electron Microscope (TEM) is the ultimate tool to
see and measure structures on the nanoscale and to probe their
elemental composition and electronic structure with sub-nanometer
spatial resolution. Recent technological breakthroughs have
revolutionized our understanding of materials via use of the TEM,
and it promises to become a significant tool in understanding
biological and biomolecular systems such as viruses and DNA
molecules. This book is a practical guide for scientists who need
to use the TEM as a tool to answer questions about physical and
chemical phenomena on the nanoscale.
Atomic Force Microscopy: Principles, Developments and Applications
presents Atomic Force Microscopy (AFM) as one of the most powerful
tools for the analysis of morphologies because it creates
three-dimensional images at the angstrom and nano scale. This
technique has been exhaustively used in the analyses of the
dispersion of nanometric components in nanocomposites and in
polymeric blends because of the easiness of the sample preparation
and lower equipment maintenance costs compared to the electron
microscopy. Contributions to different application areas using the
AFM are described, emphasizing the analysis of the morphology of
composites/nanocomposites and polymeric blends based on elastomeric
materials. Following this, the authors examine the basic concept of
DEP and its integration with AFM to generate DEP, as well as review
DEP-based AFM methods of imaging local electric polarizability with
nanoscale spatial resolution. The direct measurement of DEP
strength and polarity using a multi-pass AFM technique is
described, contributing to the optimization and calibration of DEP
integrated nano-devices for the effective control and manipulation
of target biomolecules. The combination of in situ AFM-study of
model crystals and ex situ-scanning of natural crystals makes it
possible to carry out a partial reconstruction of natural
crystallogenetics processes. With the use of these methods and
microtomography, the authors estimate the concentration of silica
in the mother solution at the time of capture of inclusions was
estimated for the first time. Next, a study is presented with the
goal of evaluating the morphology of surface asphalt films obtained
through spin coating and characterized by AFM. The samples were
pure asphalt and modified with two types of asphaltenes called
continental type and archipelago type. The asphaltene fractions in
the micellar system define the morphological stability of the
asphalt resulting from a contribution of all the existing forces
between the supramolecules of the system. The closing study
presents in situ AFM investigations of crystal dissolution. The
statistical data shows considerable differences in tangential
dissolution rate on the two spirals consisting of nine and four
screw dislocations.
This book describes modern focused ion beam microscopes and
techniques and how they can be used to aid materials metrology and
as tools for the fabrication of devices that in turn are used in
many other aspects of fundamental metrology. Beginning with a
description of the currently available instruments including the
new addition to the field of plasma-based sources, it then gives an
overview of ion solid interactions and how the different types of
instrument can be applied. Chapters then describe how these
machines can be applied to the field of materials science and
device fabrication giving examples of recent and current activity
in both these areas.
"I want to get at the blown glass of the early cloud chambers and
the oozing noodles of wet nuclear emulsion; to the resounding crack
of a high-voltage spark arcing across a high-tension chamber and
leaving the lab stinking of ozone; to the silent, darkened room,
with row after row of scanners sliding trackballs across projected
bubble-chamber images. Pictures and pulses--I want to know where
they came from, how pictures and counts got to be the bottom-line
data of physics." (from the preface)
"Image and Logic" is the most detailed engagement to date with the
impact of modern technology on what it means to "do" physics and to
be a physicist. At the beginning of this century, physics was
usually done by a lone researcher who put together experimental
apparatus on a benchtop. Now experiments frequently are larger than
a city block, and experimental physicists live very different
lives: programming computers, working with industry, coordinating
vast teams of scientists and engineers, and playing politics.
Peter L. Galison probes the material culture of experimental
microphysics to reveal how the ever-increasing scale and complexity
of apparatus have distanced physicists from the very science that
drew them into experimenting, and have fragmented microphysics into
different technical traditions much as apparatus have fragmented
atoms to get at the fundamental building blocks of matter. At the
same time, the necessity for teamwork in operating
multimillion-dollar machines has created dynamic "trading zones,"
where instrument makers, theorists, and experimentalists meet,
share knowledge, and coordinate the extraordinarily diverse pieces
of the culture of modern microphysics: work, machines, evidence,
and argument.
This book is written specifically for the students of intermediate
(or Higher Secondary) standard. Keeping in view of the standard of
their education, the book is written in simple and lucid language.
Each of the experiments written in the book comprises necessary
introductions and theoretical details alongwith stepwise procedure
for performing practicals, so that they can easily follow this book
in their Laboratory classes. Whenever needed the experiments are
followed by Viva-Vice questions along with their answers. These
questions will help the students to guide them for their college
practical examinations in advance.
Learn about the Physics of Balls Rocking, Rolling, Falling,
Bouncing, & Flying Force, Trajectory, Velocity, &
Acceleration In this book, readers gain access to real scientific
data pertaining to balls, promoting graph-reading, comparison,
contrast, and calculation skills. Graphs show data from the
following scientific instruments: Video Analysis Dual-Range Force
Meter This book allows readers to analyze real data without
purchasing expensive lab equipment. This volume focuses on an
assortment of balls, including a kickball andwiffle ball, hard and
soft clay balls, and a set of bean-filled cloth hackeysacks, plus
styrofoam balls, puffy pom-poms, and an irregularly-shaped ball.
Graphs show the motion of these balls as they are roll on flat and
inclined surfaces, bounce, and fly through the air. These balls
were deliberately chosen because their motion provides a greater
range of variety than the balls studied earlier in the series. The
graphs and data contained in this book can be used by teachers and
parents to supplement traditional lesson plans. Bonus Material:
Several graphs provide additional data on the wiffle ball,
including initial force for a straight trajectory and rocking
motion on a flat surface. The appendix also contains pictures of
soft clay balls which have deformed due to impact with a hard wood
surface.
Learn about the Physics of Balls Focus: Projectile Motion and
Collisions Force, Trajectory, Velocity, & Acceleration In this
book, readers gain access to real scientific data pertaining to
balls, promoting graph-reading, comparison, contrast, and
calculation skills. Graphs show data from the following scientific
instruments: Video Analysis This book allows readers to analyze
real data without purchasing expensive lab equipment. Graphs show
the motion of a tennis ball, cricket ball, racquetball, lacrosse
ball, softball, field hockey ball, street hockey balls (high and
low density), and Swedish hockey puck-handling ball as they fly
through the air. Some graphs also show the balls hitting a wall and
bouncing back. The graphs and data contained in this book can be
used by teachers and parents to supplement traditional lesson
plans. Bonus Material: For comparison and contrast, a selection of
balls from Volume 3 are provided. Graphs show data from a
basketball, soccer ball, volleyball, dodge ball, 3 baseballs
(official, safety, and plastic), 3 golf balls (official, foam and
plastic), a ping pong ball, and a plastic apple as they fly through
the air. Several of these graphs also show the trajectory of balls
bouncing off a wall.
Erfahren Sie mehr uber die Biophysik des Eislaufen
Korpergelenkwinkel & Bewegungsbereich Elektrische Signale der
Herz & Muskeln Atem Muster & Lunge Kapazitat Blutdruck
& Herzfrequenz In diesem Buch erhalten die Leser Zugriff auf
Echt wissenschaftlichen Daten in Bezug von Eislaufen, die Forderung
Graphen Lesen, Vergleich, Kontrast und Rechenfertigkeiten.
Diagramme zeigen Daten aus den folgenden wissenschaftlichen
Instrumenten: Goniometer EKG / EMG-Sensor Blutdruck-und
Herzfrequenzsensor Spirometer Dieses Buch erlaubt es dem Leser
echten Daten ohne den Kauf teurer Laborausstattung zu analysieren.
Diagramme enthalten Daten zu den Biophysik Eislaufen,
einschliesslich Gelenkwinkel/Positionen, die elektrische Aktivitat
des Herzens (EKG) und Muskeln (EMG), Atemfrequenz, Lungenvolumen,
Blutdruck, und Puls mit Eislaufen. Proben untersuchen Schritten,
Verbindungselemente, Piroutetten, und Sprunge. Die Ubungen werden
gezeigt und auf dem Boden analysiert. Diese Daten sind Biophysik
Proben von einem Individuum und sind nicht reprasentativ fur die
Bevolkerung. Diese Daten konnen fur Unterrichtsplane von Lehrern
und Eltern verwendet werden."
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