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Art of STEM 2015
Show moreThis photo shows a rather waxy plant whose surface caused water droplets to remain separated on its surface. The photo was taken using a Nikon D7100 with 300m lense.
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Show moreIndium nitride (InN) nanowires were synthesized on Si (100) substrate by chemical vapor deposition (CVD) method via a vapor-liquid-solid growth mechanism. The Si substrate was covered with 15 A Au film deposited via thermal evaporation. High purity Indium foil and ammonia were used as group III and group V sources respectively. The growth temperature and pressure were 580 C and 10 Torr respectively. The growth was conducted for 1.5 hr. The SEM image shows two different orientations of the InN nanowires; non polar m-plane with triangular cross section and polar c-plane with hexagonal cross section. The image was taken at the Swagelok Center for Surface Analysis of Materials (SCSAM) at CWRU.
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Show moreThis is a Silicon Carbide crystal growing on top of Silica glass. The image was taken using an FEI Helios 650 high resolution scanning electron microscope at the Swagelok Center for Surface Analysis of Materials. The image was acquired using secondary electrons at relatively low voltage (5kV) to boost contrast and a tilt angle of 52 degrees to enhance the 3D feel of the surface.
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Show moreSEM autograph of Pseudomonas aeruginosa: a ubiquitous, gram-negative, rod-shaped bacterium. It has been intensively studied as an opportunistic human pathogen. It is one of the most common pathogens for nosocomial infection in immunocompromised individuals. This image was taken with FEI Helios Nanolab 650 using 2 KV 50 pA with TLD mode 2. The specimen was prepared with the OTO technique.
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Show moreThis piece is intended to show the effects of the queen and the mandibular pheromone she emits to the worker bees and to highlight the parallels between the ring structure in methylparaben, a key component of Queen Mandibular Hormone, and the hexagonal honeycombs that make up the bee hive. The piece is 13 x 18 inches
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Show more2D materials are of great attraction for their exotic properties. The flow in the image shows a facile way to manipulate these nano-scale materials. The manipulation is assisted by a PDMS stamp with the help of a micro-positioner. The optical microscopic (lower-left) and SEM (upper-right) images of a fabricated 2D material device are shown. This manipulating technique helps scientists and engineers explore the characteristics and applications of these promising materials.
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Show more"The Marsupial Mother: Embryonic Diapause in Macropus rufus" is intended to educate viewers of the female kangaroo's reproductive adaptations. The illustration depicts the anatomy of the reproductive organs, as well as the development of an embryo into a joey. By clearly showing the life stages of the newborn, this piece visually conveys a large quantity of information that is readable for the viewers. The project design focuses on a specimen's adaptation rather than an emphasis on the animal in general. This piece effectively uses the two, filled line art insets, as well as the realistic rendering of the mother and joey kangaroo to communicate how the adaptation pertains to the subject. Through its visual aesthetic and the subject matter, this project is able to inform, intrigue, and stimulate curiosity, ultimately finding a unique approach to education.
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Show more"The picture is a Secondary Electron image on the FEI Helios 650 combined with an iPad photo. The sample in the SE image is a Tin balls specimen used for system alignment. The imaging was done at ""Swagelok Center for Surface Analysis of Materials"" (SCSAM) in the Case School of Engineering."
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Show moreA group of silica microspheres are "dancing" to high-frequency "music" of a multimode, micromechanical plate resonator in an aquatic environment. The magical two dimensional (2D) geometric patterns, namely, Chladni figures, visualize the multiple flexural modes when microspheres are stabilized along nodal circles and nodal lines. This is the first time we resolved such microscale Chladni figures on a silicon carbide trampoline resonator, and such techniques may enable single-cell manipulation, cell patterning, size-based cell sorting and related cellular and biophysical studies.
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Show more"The Moment You Live" is the piece that I decided to make when I was walking in the silent woods. In the woods, if you look at the numbers on the cut out stone and binary numbers on the piece, every second you would think about humanity and nature. Perhaps you will find yourself in the moment. The piece in the photo was created by collaboration with think[box]. I cut out the sand stone with shop bot at think[box]. And they helped a lot to make this work. It was possible to make a hole in a stone because I could work with think[box].
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Show moreElectron transparency of the microstructure features from a Nickel based alloy after a FIB-SEM lift out looks like a real life scene! A sheep with curly hair eating grass and living happily 20 microns deep into an oxide layer of a jet motor turbine.
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Show moreNorthern Lights are magical. Unlike a revealed magic trick, the magic of Northern Lights is just as awe-inspiring even after you understand how they work. Pictured: An Icelandic church, with lit crosses bedecking its graves, sits frozen as the Northern Lights dance all around it.
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Show moreDr. Rollins, Daniel Hageman, Alexander Kolberg and Nicole Mammoser are observing chimpanzees on a brief excursion to Uganda in order to assess medical needs.
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Show morePolarized light microscopy of mechanically aligned, electrochemically compacted collagen. Collagen molecules are isolated from skin samples and processed into a semi-viscous fluid. This fluid is then introduced into a mold between two carbon electrodes. By applying a voltage across the electrodes, a pH gradient is formed. The collagen molecules are driven into a thin sheet or thread, which can then be used as a scaffold for cell culture studies and development of engineered tissue. These scaffolds can be stretched in order to align the molecules, which in turn will induce any cells seeded on the scaffold to align. By varying the amount of stretching, varying degrees of alignment can be achieved. In the polarized light microscopy image "Order in Organic Chaos" a partial alignment of the scaffold is presented. The blue areas indicate alignment along the diagonal of the image running from the bottom left to the top right, whereas the other shades represent localized misalignment. The elliptical shapes are the result of gas bubbles, released during electrical compaction, being trapped in the sheet. By varying the time of compaction the presence of such bubbles can be limited. And so, from a vial of randomly floating molecules, ordered structures can be formed and controlled.
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Show more"View inside a semiconductor growth vacuum chamber. The magenta glow is the result of ionized molecular hydrogen plasma that enters from the quartz tube positioned vertically at the top. When the positively charged hydrogen ions recombine with the excited electrons, light waves of this hue are emitted. The central barbell shaped crucible is filled with molten indium (In). When nitrogen gas is added to the plasma, atomic N dissolves into the liquid metal and the target material indium nitride (InN) can grow. The purpose of the design is to generate a large temperature difference from the top of the crucible to the bottom. The narrow crucible stem has a low thermal conductivity so that heat energy accumulates at the top. The two copper leads at the top of the crucible provide current to a heater. The two pincer-like probes measure the temperature at the top and bottom of the indium well. The copper base plate efficiently removes heat from the base of the crucible to a water-cooled vacuum jacket heat sink. This design generates a temperature difference of 150 degC over a span of two centimeters. The temperature at the top is too hot for InN to grow. At the cooler bottom however the growth temperature is optimum. Therefore, away from the chaotic and dynamic surface, as the dissolved N reaches the bottom, the measured growth of InN should happen from the bottom-up producing high quality material. Recommended size height=16"" and width=12""."
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Show moreSingle image obtained by using graphical software to merge digital reproduction of a fairy figure from the artist's original acrylic painting and DiI-stained image of a rat neuron captured using a confocal microscope.
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