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Raspberry Pi


Chromatography

Use of advanced chromatography techniques e.g. GC, HPLC

  • 2017-05-24 15:25:13
  • 34 views
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Scanning Electron Microscope (SEM)

A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that contain information about the sample's surface topography and composition. The electron beam is scanned in a raster scan pattern, and the beam's position is combined with the detected signal to produce an image. SEM can achieve resolution better than 1 nanometer. The image is a butterfly wing in large magnification, which shows its nanostructure to reflect particular color on the wing. It is extremely good for STEM programs in secondary schools to investigate nature specimens in nanoscale.

  • 2017-05-23 01:38:18
  • 38 views
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CVD grown 2D layered MoS2

10.1021/nn4024834

2D layered MoS2 with different numbers of layers were produced by chemical vapor deposition (CVD) synthesis. We have successfully and reproducibly grown MoS2 vertical heterostructures from 1 to 3 layers over a large area (up to 2cm x 2cm).

  • 2017-05-23 01:12:03
  • 14 views
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Exfoliated 2D layered material s

Single-crystal can be cleaved by the use of an adhesive tape. This was also the initial route for obtaining graphene, a one-layer thick graphite slab. In particular on the nature of the surprisingly small number of repetitive steps that are needed in order to obtain a single-layer slab. This is the cheapest and easiest way to obtain perfect 2D layered materials at low cost, which is suitable for the STEM program at secondary schools.

  • 2017-05-23 00:56:54
  • 13 views
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Multiband magnetic resonance fingerprinting

Multiband magnetic resonance fingerprinting

  • 2016-09-05 16:24:42
  • 395 views
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Characterizing the transplanar and in-plane water transport properties of fabrics under different sweat rate: Forced Flow Water Transport Tester

10.1038/srep17012

The water absorption and transport properties of fabrics are critical to wear comfort, especially for sportswear and protective clothing. A new testing apparatus, namely Forced Flow Water Transport Tester (FFWTT), was developed for characterizing the transplanar and in-plane wicking property of fabrics based on gravimetric and image analysis technique. The uniqueness of this instrument is that the rate of water supply is adjustable to simulate varying sweat rates with reference to the specific end-use conditions ranging from sitting, walking, running to other strenuous activities. This instrument is versatile in terms of the types of fabrics that can be tested. Twenty four types of fabrics with varying constructions and surface finishes were tested. The results showed that FFWTT was highly sensitive and reproducible in differentiating these fabrics and it suggests that water absorption and transport properties of fabrics are sweat rate-dependent. Additionally, two graphic methods were proposed to map the direction of liquid transport and its relation to skin wetness, which provides easy and direct comparison among different fabrics. Correlation analysis showed that FFWTT results have strong correlation with subjective wetness sensation, implying validity and usefulness of the instrument.

  • 2016-02-10 16:41:10
  • 390 views
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physical properties measurement system

the PPMS is a product from Quantum Design in California. The model number is HT605 equimed with a VSM and kind of electric and thermal properties testing modes

  • 2016-01-19 15:38:07
  • 692 views
  • 1 quoted

perovskite solar cell

The cells generate electricity when light particles (photons) collide with electrons, creating 'excited' electrons and holes. The electric field of the p–n junction guides excited electrons towards the n-side and holes towards the p-side. They are picked up by metal contacts, electrodes, which enable them to flow around the circuit to create an electric current.

  • 2016-01-19 15:31:19
  • 513 views
  • 1 quoted

2DEG THIN FILM