http://205.166.159.208/wiki/api.php?action=feedcontributions&feedformat=atom&user=Aferris 2026-05-03T11:55:16Z User contributions MediaWiki 1.35.5 http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=12260 2019-11-25T21:39:51Z

<p>Aferris: Where</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> ==Undergraduate Research Activities==<br /> <br /> ===Summer 2019===<br /> Kieft Summer Research with Bradley Sturgeon (Electron Paramagentic Resonance)<br /> <br /> [[File:epr 7.png|250px]] [[File:epr 6.png|250px]] <br /> <br /> Electron Paramagnetic Resonance (EPR) is procedure which utilizes the the splitting in energy levels between the two possible spin configuration of an electron in the presence of a magnetic field, in order to detect the coupling of a given electron to the nuclei of an adjacent atom. Once the substance is introduced to a magnetic field of a given strength, a range of microwave frequencies is panned through in order to find the frequency with the resonant energy. An unpaired electron which is delocalized evenly throughout a molecule will only show one iteration of splitting, the splitting in energy levels between the two spin configurations caused by the magnetic field. However, in a system where additional interactions exist between magnetic field created by the electron and the nuclear magnetic moment of a given atomic nuclei, Hyperfine Splitting will occur. This further splitting infers that the unpaired electron is not evenly delocalized around the all nuclei in the molecule, rather it is interaction more strongly at some positions (atomic nuclei) in the molecule than others. The phenomena is called hyperfine splitting becuase it further splits the primary splitting caused by the magnetic field. However, since the biased interactions between the electron and a given nuclei is quite minute, the splitting caused by these interactions also pale in comparison to to the original splitting. <br /> <br /> [[File:epr 9.png|250px]]<br /> <br /> Hyperfine Splitting provides information on the magnitude of the electron's interaction with a given atomic nuclei when the electron is not evenly delocalized. The magnitude of the splitting is proportional to the strength of the electron-nuclei interactions and therefor the amount of time the electron spends in that position (a evenly delocalzied electron would spend the same amount of time on all positions and therefore no hyperfine coupling would be present). The magnitude of the splitting is recorded in energy unit of Gauss, and is displayed on the EPR spectrum as the distance between peaks. Quantitatively the magnitude of the hyperfine splitting (and therefore the strength of the ineraction between the eloectron and that given atomic nuclei) is represented by the Hyperfine Coupling Coefficient. <br /> An unpaired electron was transferred to naphthalene by Sodium metal, via a reduction reaction. Where a molecule such as Benzene would have an unpaired electron evenly delocalized around the entire structure due to its chiral symmetry, a molecule such as Naphthalene would have two different positions due to its chiral asymmetry. We would expect to see two different Hyperfine Coupling Coefficients, one for each unique position.<br /> <br /> ===Fall 2019===<br /> [[Ion_Chromatography|Ion Chromatography]]<br /> <br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_9.png&diff=12259 2019-11-25T21:31:36Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_7.png&diff=12258 2019-11-25T21:06:28Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_7.png&diff=12254 2019-11-25T20:37:02Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_6.png&diff=12253 2019-11-25T20:34:51Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_4.png&diff=12252 2019-11-25T20:12:57Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_3.gif&diff=12251 2019-11-25T20:09:27Z

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Aferris http://205.166.159.208/wiki/index.php?title=File:Epr_2.jpg&diff=12250 2019-11-25T20:09:26Z

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Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12249 2019-11-25T20:05:21Z

<p>Aferris: /* Fish Tank */</p> <hr /> <div>Intro statement <br /> <br /> From [https://en.wikipedia.org/wiki/Ion_chromatography wikipedia]...<br /> <br /> Ion chromatography (or ion-exchange chromatography) is a chromatography process that separates ions and polar molecules based on their affinity to the ion exchanger. It works on almost any kind of charged molecule—including large proteins, small nucleotides, and amino acids. However, ion chromatography must be done in conditions that are one unit away from the isoelectric point of a protein.[1]<br /> ==Instrument==<br /> [[File:IC.PNG|200px]]<br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]<br /> <br /> ==Projects==<br /> <br /> ===Fish Tank===<br /> The water chemistry of a fish tank is critical to the well being of tank inhabitants. Fish food is consumed and converted to waste products. These waste products include ammonia, nitrite, and nitrate.<br /> <br /> <br /> [[File:fish.png|400px]]</div>

Aferris http://205.166.159.208/wiki/index.php?title=File:Fish.png&diff=12248 2019-11-25T20:05:02Z

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Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12210 2019-11-18T16:29:16Z

<p>Aferris: /* Projects */</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> [[File:IC.PNG|200px]]<br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]<br /> <br /> ==Projects==<br /> <br /> ===Fish Tank===</div>

Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12209 2019-11-18T16:27:45Z

<p>Aferris: /* Instrument */</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> [[File:IC.PNG|200px]]<br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]<br /> <br /> ==Projects==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12208 2019-11-18T16:26:39Z

<p>Aferris: /* Instrument */</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> [[File:IC.PNG|200px]]<br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]</div>

Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12203 2019-11-18T16:20:16Z

<p>Aferris: /* Instrument */</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> [[File:ic.jpg|400px]]<br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]</div>

Aferris http://205.166.159.208/wiki/index.php?title=File:Ic.jpg&diff=12202 2019-11-18T16:19:44Z

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Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12200 2019-11-18T16:11:52Z

<p>Aferris: /* Instrument */</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> <br /> At Monmouth College we own a [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]</div>

Aferris http://205.166.159.208/wiki/index.php?title=Ion_Chromatography&diff=12199 2019-11-18T16:10:38Z

<p>Aferris: Created page with &quot;Intro statement ==Instrument== At Monmouth College [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]&quot;</p> <hr /> <div>Intro statement <br /> <br /> ==Instrument==<br /> <br /> At Monmouth College [https://www.thermofisher.com/order/catalog/product/22176-60002#/22176-60002 Dionex™ Aquion™ Ion Chromatography (IC)]</div>

Aferris http://205.166.159.208/wiki/index.php?title=Chromatography&diff=12198 2019-11-18T16:06:31Z

<p>Aferris: Created page with &quot;These are the chromatography instruments on the Monmouth campus. ==HPLC== ==GC-MS== ==IC== ==Flash==&quot;</p> <hr /> <div>These are the chromatography instruments on the Monmouth campus.<br /> <br /> ==HPLC==<br /> <br /> ==GC-MS==<br /> <br /> ==IC==<br /> <br /> ==Flash==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=12194 2019-11-18T15:42:46Z

<p>Aferris: /* Undergraduate Research Activities */</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> ==Undergraduate Research Activities==<br /> ===Summer 2019===<br /> Kieft Summer Research with Bradley Sturgeon (Electron Paramagentic Resonance)<br /> ===Fall 2019===<br /> Ion Chromatography<br /> <br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=12193 2019-11-18T15:39:25Z

<p>Aferris: </p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> ==Undergraduate Research Activities==<br /> Summer 2019: Kieft Summer Research with Bradley Sturgeon (Electron Paramagentic Resonance)<br /> <br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Glassblowing_Lathe&diff=10984 2019-05-31T20:01:26Z

<p>Aferris: /* Step 2) Can we now run two stepper motors using an Arduino? */</p> <hr /> <div>This page documents the build of a glassblowing lathe. Projected started on May 29, 2019 by BES and Andrew Ferris.<br /> <br /> ==Introduction==<br /> Q: So what is a lathe?<br /> <br /> A: [https://www.dictionary.com/browse/lathe Definition]: ''a machine [used] for shaping wood, metal, or other material by means of a rotating drive which turns the piece being worked on against changeable cutting tools.''<br /> <br /> [https://en.wikipedia.org/wiki/Lathe Wikipedia - General discussion]<br /> <br /> [[File:lathe_diagram.jpg|400px]]<br /> <br /> The most basic parts of a lathe include:<br /> :1) Head stock assembly<br /> :2) Tail stock assembly<br /> :3) spindle/chuck<br /> <br /> The '''head stock assembly''' is composed of two main parts: 1) the motor that turns the &quot;piece&quot; and 2) it holds the spindle/chuck where the &quot;piece&quot; is mounted.<br /> <br /> The '''tail stock assembly''' on a standard lathe is where the &quot;piece&quot; is held/stabilized on the other side.<br /> <br /> Lathes are physically different based on the material of the piece.<br /> :1) Wood lathes<br /> ::There are 2 wood working lathes in the MC Physics Machine Shop]<br /> :2) Metal lathes<br /> ::[http://esr.monmsci.net/wiki/index.php/Lathe_operation metal cutting lathe in the MC Physics Machine Shop]<br /> :3) Glassblowing lathes<br /> ::these lathes are very specialized and hence as &gt;$8k, if you can find them. So we are going to build one!<br /> ::The major difference in a glassblowing lathe is there are 2 motors, one on each end that move in unison and the tail stock motor needs to move. A typical glassblowing lathe will have a common gear that drives both motors, but the need for the tailstock assembly to move adds a level of complication. We are proposing to use two stepper motors run by the smae driver??? (see below).<br /> <br /> [[File:Screen Shot 2019-05-31 at 7.40.43 AM.png|400px]]<br /> <br /> ==Construction==<br /> ===Step 1) can we control a stepper motor using an Arduino?===<br /> <br /> [https://www.arduino.cc/en/Tutorial/StepperSpeedControl Example from Arduino Website]<br /> <br /> ===Step 2) Can we now run two stepper motors (and in opposite directions) using an Arduino.===<br /> <br /> [https://www.youtube.com/watch?v=rRzVy2pX0CQ&amp;feature=youtu.be stepper motors (YouTube)]<br /> <br /> ===Step 3) Can we mount the two stepper motors onto a rail and how one movable?===<br /> <br /> ===Step 4) Can we construct a glassblowing &quot;chuck&quot; to be mounted on the stepper motors?===<br /> <br /> ===Other links===<br /> <br /> [http://www.big-list.com/glasslathe.html Homemade Mini Glassworking Lathe]<br /> <br /> [https://www.youtube.com/watch?v=-yBLYRZcF0o Chuck+Stepper+support...all in one]</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=10924 2019-05-28T16:36:49Z

<p>Aferris: /* Undergraduate Research Activities */</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> Contact Info: 309-678-1775<br /> <br /> ==Undergraduate Research Activities==<br /> Summer 2019: Kieft Summer Research with Bradley Sturgeon (Electron Paramagentic Resonance)<br /> <br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=10923 2019-05-28T16:36:33Z

<p>Aferris: /* Undergraduate Research Activities */</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> Contact Info: 309-678-1775<br /> <br /> ==Undergraduate Research Activities==<br /> Summer 2019: Doc Kieft Summer Research with Bradley Sturgeon (Electron Paramagentic Resonance)<br /> <br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=10920 2019-05-28T16:33:39Z

<p>Aferris: /* Personal Information */</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> <br /> Hometown: Galesburg, IL<br /> <br /> Contact Info: 309-678-1775<br /> <br /> ==Undergraduate Research Activities==<br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=10917 2019-05-28T16:33:05Z

<p>Aferris: /* Personal Information */</p> <hr /> <div>==Personal Information==<br /> Senior Biochemistry Major<br /> Hometown: Galesburg, IL<br /> Contact Info: 309-678-1775<br /> <br /> ==Undergraduate Research Activities==<br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris http://205.166.159.208/wiki/index.php?title=Andrew_S_Ferris&diff=10912 2019-05-28T16:30:30Z

<p>Aferris: Created page with &quot;==Personal Information== ==Undergraduate Research Activities== ==Presentations== ==Interests== ==Career Goals==&quot;</p> <hr /> <div>==Personal Information==<br /> ==Undergraduate Research Activities==<br /> ==Presentations==<br /> ==Interests==<br /> ==Career Goals==</div>

Aferris