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Related Concept Videos

Periodic Classification of the Elements04:00

Periodic Classification of the Elements

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The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
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Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
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Related Experiment Video

Updated: Jan 26, 2026

Fabrication of Surface Acoustic Wave Devices on Lithium Niobate
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Finite Element Analysis for Surface Acoustic Wave Device Characteristic Properties and Sensitivity.

Tao Wang1,2,3, Ryan Green4,5, Rasim Guldiken6,7

  • 1James A Haley VA Hospital, Tampa, FL 33612, USA. taowang@mail.usf.edu.

Sensors (Basel, Switzerland)
|April 25, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel 3D finite element model for surface acoustic wave (SAW) biosensors, enhancing device design. The model accurately predicts performance, with the imaginary part of the response shift showing highest sensitivity.

Keywords:
IrO2ZnOfinite element method (FEM)sensitivitysurface acoustic wave (SAW)

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Biotechnology

Background:

  • Surface Acoustic Wave (SAW) devices are crucial for electronics, telecommunications, and biosensors due to their cost-effectiveness and portability.
  • Optimization of SAW device design is vital for developing new and existing sensors and transducers.
  • A comprehensive three-dimensional (3D) finite element model for characterizing SAW biosensors has been lacking.

Purpose of the Study:

  • To develop and validate a novel 3D finite element model for analyzing shear horizontal Love wave resonator devices.
  • To provide a design guideline for future SAW device optimization.
  • To correlate SAW device sensitivity with various performance parameters using a 3D model.

Main Methods:

  • Developed a novel 3D finite element modeling approach for shear horizontal Love wave resonator devices.
  • Verified the modeling methodology using fabricated devices.
  • Performed a thorough analysis of the 3D model and experimental device, including S-parameters, reflection/transmission coefficients, and phase velocity.

Main Results:

  • The 3D finite element model demonstrated a close match between simulated and experimental results.
  • This is the first study to use a 3D finite element model to correlate SAW device sensitivity with phase shift, response components, insertion loss, and frequency shift.
  • The imaginary part of the response shift was identified as the most sensitive parameter.

Conclusions:

  • The developed 3D finite element model serves as an effective design guideline for optimizing SAW devices.
  • The model accurately predicts device performance, facilitating future advancements in SAW biosensor technology.
  • The findings highlight the superior sensitivity of the imaginary part of the response shift for SAW device characterization.