CE ÎNSEAMNĂ QUARTZ CRYSTAL ÎN ENGLEZĂ?
Cuarţ
Cuartul este al doilea cel mai abundent mineral din scoarța continentală a Pământului, după feldspat. Acesta este alcătuit dintr-un cadru continuu de SiO4 silicon-oxigen tetraedra, fiecare oxigen fiind împărțit între două tetraedre, oferind o formulă generală SiO2. Există multe varietăți de cuarț, dintre care câteva sunt pietre semiprețioase. Mai ales în Europa și în Orientul Mijlociu, soiurile de cuarț au fost încă din antichitate cele mai frecvent utilizate minerale în fabricarea de bijuterii și sculpturi din lemn.
Definiția quartz crystal în dicționarul Engleză
Definiția cristalului cuarț din dicționar este o placă subțire sau tijă tăiată în anumite direcții dintr-o bucată de cuarț piezoelectric și măcinată cu precizie, astfel încât să vibreze la o anumită frecvență.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «QUARTZ CRYSTAL»
Descoperă întrebuințarea
quartz crystal în următoarea selecție bibliografică. Cărți în legătură cu
quartz crystal și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Magnetic
Quartz Crystal Microbalance
In this thesis, a new technique for using quartz crystal microbalance (QCM) in magnetic field was explored.
2
Quartz Crystal Oscillator Circuits Design Handbook
The object of this handbook is to assemble a set of design methods for crystal oscillators in the frequency range of 1 KC to 200 MC with the aim of facilitating design, eliminating crystal unit misapplications, and reducing design costs.
3
Applications of Piezoelectric
Quartz Crystal Microbalances
trodes directly onto the piezoelectric quartz crystal plate and coupling the unit to a
circuit with suitable gain and feedback, an oscillator can be formed with its
resonant frequency measured electronically. For a properly designed quartz
crystal ...
C. Lu, A.W. Czanderna,
1984
4
The Anti-Gravity Handbook
This effect was clearly explained in August, 1925 Radio News and December,
1919 Electrical Experimenter. These oscillations are extremely small, but have
nevertheless their technical use in a quartz crystal wave-meter and in
maintaining ...
David Hatcher Childress,
2003
5
A New Dimension in Hydraulic Machinery Testing with the ...
The development of the quartz crystal thermometer with high sensitivity and good stability has added a new dimension to the test evaluation of hydraulic machinery performance.
Alexander Louis London, David Virgil Nelson,
1969
Quartz crystal has been a popular semi-precious gem because of its remarkable
transparency. Now, for an entirely different reason, it is a highly prized jewel of
warfare. Thin wafers cut from quartz crystal have a mysterious reaction known as
...
7
The Electronics Handbook, Second Edition
FUNDAMENTAL THIRD MECHANICAL OVERTONE FIFTH MECHANICAL
OVERTONE FIGURE 3.3 Overtone and spurious frequency response of a quartz
crystal. (Source: Frerking, M.E. 1978. Crystal Oscillator Design and Temperature
...
8
Basics of Optics of Multilayer Systems
Quartz crystal and photometric methods are most commonly used for the purpose
. 3.2.1 Quartz crystal film thickness monitoring Quartz crystal monitoring method
is based on frequency measurement for quartz crystal oscillator located in a ...
Sh. A. Furman, A. V. Tikhonravov,
1992
9
Crystal Clear: The Struggle for Reliable Communications ...
In Crystal Clear, Richard Thompson relates the story of the quartz crystal in World War II, from its early days as a curiosity for amateur radio enthusiasts, to its use by the United States Armed Forces.
Richard J. Thompson, Jr.,
2011
10
Quartz Crystal Microbalance Studies of Atomic Scale Friction ...
This work utilizes the static phase diagrams of such two-dimensional phases, in comparison to the dynamic phase change, to investigate the temperature rise at the sliding interface as a function of the sliding speed of the adsorbed krypton ...
ȘTIRI NOI CARE INCLUD TERMENUL «QUARTZ CRYSTAL»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
quartz crystal în contextul următoarelor știri.
David Hickey of Crystal Journey
Crystal Journey featuring David Hickey will perform Saturday at 7:30 pm at the Mount ... Hickey makes music with quartz crystal bowls, paiste planet gongs, ... «Peterborough Examiner, Apr 15»
Crystals reveal the answer: Detecting drugs with a quartz crystal …
A novel type of high temperature quartz crystal disc could make the perfect detector for small, portable gas chromatography (GC) systems, say US researchers. «separationsNOW.com, Mar 15»
Are We There Yet? Mount Ida has bragging rights as quartz capital
With a population just over 1,000, Mount Ida proclaims itself "Quartz Crystal Capital of the World." The Montgomery County seat is part of a "quartz belt" 30 to 40 ... «Arkansas Online, Feb 15»
Global Quartz Crystal Resonators Industry Report 2015
The Quartz Crystal Resonators industry Report 2014 is a professional and in-depth study on the current state of the Quartz Crystal Resonators Industry with a ... «PR Newswire, Ian 15»
OpenQCM Project Uses 3D Printing to Create a Precision Quartz …
A Quartz Crystal Microbalance, openQCM is an incredibly sensitive — and fully open-source — scientific device for applications in chemical and biological ... «3DPrint.com, Ian 15»
Lasers may replace quartz crystals in future electronics
Quartz crystals "tune" oscillators by vibrating at relatively low frequencies — those that fall at or below the range of megahertz, or millions of cycles per second, ... «Times of India, Iul 14»
Why do so many middle-class women believe crystals can cure their …
Every evening before bed, Patricia Hill carries out the same ritual. She takes off a quartz crystal she wears on a silver chain on her neck and sets it in the centre ... «Daily Mail, Iul 14»
Scientists smash crystals to determine the true age of the moon
However, after smashing open ancient quartz crystals that date as far back as 2.7 billion and 3.4 billion years, researchers at the University of Lorraine in Nancy, ... «Los Angeles Times, Iun 14»
Quartz crystal computer rocks
"Irrational Computing" has interlinked a series of untreated crystals and ... form, but as silicon dioxide in crystals such as quartz, agate, amethyst and rock crystal. «CNET, Mai 14»
Research and Markets: Global Quartz Crystals & Oscillators (XOs …
Comprehensive analysis of the world market for quartz crystals and oscillators - in particular quartz crystals, XOs, TCXOs, VCXOs, and OCXOs. The report ... «Business Wire, Apr 14»