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Related Concept Videos

Production of Formed Elements01:34

Production of Formed Elements

Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
Most HSCs commit to...
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
Maximum Power Transfer01:16

Maximum Power Transfer

Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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Cyclic Processes And Isolated Systems01:19

Cyclic Processes And Isolated Systems

A thermodynamic system with zero heat exchange and work is an isolated system. For these systems, the internal energy remains constant.
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The Maximum Power Transfer Theorem01:20

The Maximum Power Transfer Theorem

Consider a linear AC Thevenin equivalent circuit connected to a load impedance.
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Related Experiment Video

Updated: Jul 11, 2026

Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System
10:36

Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System

Published on: June 12, 2015

MATERIALS PROCESSING: The Power of Direct Writing.

D B Chrisey

    Science (New York, N.Y.)
    |September 11, 2007
    PubMed
    Summary

    Direct-write technologies enable maskless, micrometer-scale structure fabrication for rapid prototyping. This approach facilitates faster, cost-effective manufacturing of electronics, tissue engineering scaffolds, and biosensors.

    Area of Science:

    • Materials Science
    • Nanotechnology
    • Additive Manufacturing

    Background:

    • Direct-write approaches build micrometer-scale structures without masks, enabling rapid prototyping.
    • These technologies are crucial for advancing electronic component manufacturing, tissue engineering, and biosensor development.

    Purpose of the Study:

    • To provide an overview of current research in direct-write technologies.
    • To highlight the materials science aspects of these fabrication methods.

    Main Methods:

    • Review of current direct-write technologies.
    • Focus on materials science principles and applications.

    Main Results:

    • Direct-write methods allow for maskless, precise fabrication of microstructures.

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    Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory

    Published on: March 7, 2018

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    Last Updated: Jul 11, 2026

    Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System
    10:36

    Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System

    Published on: June 12, 2015

    Laser-induced Forward Transfer of Ag Nanopaste
    08:07

    Laser-induced Forward Transfer of Ag Nanopaste

    Published on: March 31, 2016

    Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory
    08:58

    Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory

    Published on: March 7, 2018

  • Applications span electronics, regenerative medicine, and diagnostics.

    • Conclusions:

    • Direct-write technologies offer significant advantages in speed and cost for microfabrication.
    • Continued research in materials science is key to expanding the capabilities of direct-write approaches.