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CRISPR Gene Editing Symposium, September 18, 11:00am-1:45pm
by Ewing, Virginia G 27 Aug '15

27 Aug '15

From: Field, Wendy Sent: Thursday, August 27, 2015 9:05 AM Subject: CRISPR Gene Editing Symposium, September 18, 11:00am-1:45pm Good morning all, Please distribute the attached seminar notice to your department. If possible, please post in your area as well. Many thanks, Wendy Wendy Field Research Administrative Coordinator Bindley Bioscience Center 1203 West State Street West Lafayette, IN 47907 765-494-0497 wfield(a)purdue.edu<mailto:wfield@purdue.edu>

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Summary of safety incidents in FRNY reported over the summer
by Nagy, Gabriela 24 Aug '15

24 Aug '15

Hello Everyone, Please find attached a summary of the safety incidents and near misses that occurred in our School and were reported to me from my last report (June 2015) until now. I hope that sharing this information with you will prevent similar situations from happening. Please continue to report all safety incidents and near misses using the form "Safety Incident/Near Miss Report" posted on our website: https://engineering.purdue.edu/ChE/AboutUs/Safety.html under "Workplace Injury Information". As a reminder, when someone is injured during a safety incident, even if the injury does not require medical attention, this needs to be reported to REM, using the First Report of Injury (FROI) form: https://www.purdue.edu/ehps/rem/home/forms/froi.pdf. The form, which is also available on our website, needs to be submitted by the supervisor. Should you have any questions, please let me know. Thank you for your commitment to safety! Sincerely, Gabriela On behalf of the ChE Safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director ChE Safety Committee Chair School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>

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News re our friend, Nicholas Peppas
by Varma, Arvind 23 Aug '15

23 Aug '15

Dear All, A quick note that, as you may be aware, after six years of service Nicholas Peppas is stepping down as BME chair at UT-Austin at the end of this month. The news release is below: http://www.engr.utexas.edu/news/8004-peppas-bme-chair . Arvind

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Traffic and student move-in
by Murray, Chris L 12 Aug '15

12 Aug '15

From: elist39-bounces(a)lists.purdue.edu [mailto:elist39-bounces@lists.purdue.edu] On Behalf Of List 39 Administrator Sent: Wednesday, August 12, 2015 11:01 AM To: elist39(a)purdue.edu; elist39d(a)purdue.edu Subject: [Elist39] Traffic and student move-in [Purdue University] TO: Executive Vice Presidents, Chancellors, Vice Presidents, Vice Chancellors, Vice Provosts, Deans, Directors and Heads of Schools, Divisions, Departments and Offices FROM: Frank Dooley, vice provost for teaching and learning DATE: August 12, 2015 RE: Traffic and student move-in As you all are certainly aware by now, Interstate 65 in Tippecanoe County is causing challenging traffic issues for those traveling to or around Purdue. Soon, more than 40,000 students will be arriving on campus, further compounding the issue. Purdue is working to alert all students via email and social media of the Interstate closure and advising them to plan ahead, expect delays and be as patient as possible while state, area, local and Purdue law enforcement work to assist traffic in every way possible. As a reminder, Purdue's West Lafayette students attending Boiler Gold Rush will move into their on-campus housing on August 17-18, a Monday and a Tuesday, accommodating a shifted Boiler Gold Rush schedule designed to improve student engagement and connect orientation more closely to the start of the academic term. Boiler Gold Rush will take place August 19-22. Residence hall contracts for returning students begin Friday, August 21. The first day of classes is August 24. During the move-in days, the central campus area will experience heavy traffic that may cause delays or disruptions to normal business. The most-affected areas will include State Street from Martin Jischke Drive to Airport Road; Stadium Avenue between Northwestern Avenue and McCormick Road; Martin Jischke Drive from State Street to Stadium Avenue; Third Street from Martin Jischke Drive to McCormick Road and all side roads in the vicinity of residence halls. On August 18, the new student induction event will take place at 4:00-4:45 p.m. in Mackey Arena. Before and after that period, about 6,000 undergraduate students and 6,000 parents will be walking from the residence halls areas to the arena, then returning to the halls and parking areas. It is important for employees to anticipate delays and give themselves additional time for their morning commutes and/or to travel around campus for meetings during these periods. At the same time, I hope that departments and supervisors will exercise discretion and an extra degree of understanding if the additional activity during the workday causes unavoidable delays for workers. Additional information about the Boiler Gold Rush, move-in and how it will affect those on campus is available online at www.purdue.edu/bgr<http://www.purdue.edu/bgr>. Those with immediate questions should contact Dan Carpenter, director of student success, at dwcarpen(a)purdue.edu<mailto:dwcarpen@purdue.edu>.

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Lounge
by Farmus, Cristina D 11 Aug '15

11 Aug '15

Good afternoon, It is my pleasure to inform you that effective immediately we have a lounge that you can use. Until now, room B137 has been used as a lounge for the janitors; we will continue to share this room with them and the overlap should be minimum, since they only start working at 4.00 pm. The room is equipped with a sink, refrigerator, microwave and coffee maker. The furniture and layout are conducive to lunch and small gatherings. The room will be locked at all times, if you are interested in obtaining a key please talk to Jeff or Nick. I hope you will enjoy using this room and if you have any suggestions for improvements please let me know. Cristina

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FW: CoE Staff Awards of Excellence- ChE nominees
by Farmus, Cristina D 11 Aug '15

11 Aug '15

If you are interested in nominating a staff member for the 2016 College Excellence Staff Awards please let me know by August 21, we want to coordinate all nominations from the School. The categories are: * Team * Leadership * Professional achievement * Customer service (AP and clerical) * New employee Regards, Cristina From: Engap-list [mailto:engap-list-bounces@ecn.purdue.edu] On Behalf Of Sondgerath, William J Sent: Monday, July 27, 2015 10:18 AM To: 'engfaculty(a)purdue.edu'; 'Engap-list(a)ecn.purdue.edu'; 'Engcs-list(a)ecn.purdue.edu' Subject: [engap-list] CoE Staff Awards of Excellence- Accepting Nominations- by September 16 Dear Colleagues, On behalf of the College of Engineering's Staff Awards Committee, nominations for the fourteenth annual Awards of Excellence for Engineering Staff are now being accepted. Please find the nomination information and criteria here: https://engineering.purdue.edu/Intranet/Groups/Administration/AA/Awards/Nom…. Faculty and staff may review the nomination categories and selection criteria and nominate deserving A/P and C/S staff members! Nominations are due by September 16, 2015, and should be sent electronically to Marsha Freeland<mailto:mjfreeland@purdue.edu>. Past nominations may be carried over for one year following the initial submission. Nominators will be contacted the second year and will be provided the option of putting the nominee forward a second time, as well as having an opportunity to update their original submission. Recipients will be recognized at the Staff Awards Banquet which will take place at 6:30 p.m. on December 4, 2015, so be sure to mark your calendars. Thank you for taking the time to nominate your colleagues to recognize their achievements. - The Staff Awards Committee William J. Sondgerath Administrative Director, College of Engineering Neil Armstrong Hall of Engineering Purdue University West Lafayette, IN 47907 765-494-1871 wsondger(a)purdue.edu<mailto:wsondger@purdue.edu> [Description: W:\PU_signature_white_bg_215x80.png]

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Aaron Harrison Dissertation Defense, Thursday, August 13th, at 1:30 p.m. in FRNY 3062B
by Green, Corwin S 06 Aug '15

06 Aug '15

This e-mail is to announce that Aaron Harrison will be defending his dissertation, Detailed Investigations of Capillary and van der Waals Forces in the Adhesion between Solids, on Thursday, August 13th, at 1:30 p.m. in FRNY 3062B. The dissertation is directed by Dr. Beaudoin, and the abstract is below. All are welcome to attend. Abstract: The primary focus of this dissertation is on characterizing two fundamental forces common to adhesion between solids: capillary and van der Waals forces. These two forces have a significant impact on how solids flow, stick to surfaces, agglomerate and break; therefore, understanding their behavior can lead to better processing techniques. Capillary forces are responsible for caking in the food, cosmetic, and pharmaceutical industries and are caused by the spontaneous formation of liquid bridges between two surfaces in close contact. To better understand how capillary forces depend on the system relative humidity (RH), solid surface separation, and surface hydrophilicity, the Wang-Landau Monte Carlo technique on a lattice-gas framework has been used. For a smooth, hydrophilic AFM tip against a flat, hydrophilic plate on a 45x45 lattice, a maximum capillary force occurs when the separation distance is one molecular diameter of the adsorbate and the capillary force decreases as the separation distance increases, except when the tip and the surface are in contact. The capillary forces associated with completely wetting AFM tips are strongly dependent on the system RH, while partially wetting and partially drying tips are relatively independent of RH. Interestingly, capillary forces can be significant in low RH environments and thus cannot be ignored in AFM studies involving hydrophilic surfaces. Another aspect in predicting capillary forces involves the use of the Kelvin equation, which describes the relationship between the system saturation and the curvature of the liquid-vapor interface. Using a two-dimensional lattice-gas model with mean-field density functional theory, the effect of meniscus curvature on the prediction of the Kelvin equation has been studied. First, the dependence of the surface tension on the curvature of the liquid-vapor interface is established for critical bubbles forming within a bulk liquid. It is demonstrated that for a pure-component, bulk system the Kelvin equation properly describes the curvature of the interface at the Gibbs surface of tension, even for very small bubbles. Next, the system is modified to include parallel, hydrophilic surfaces between which capillary bridges can form. The curvature of these capillary bridges is quantified at differing saturation levels, separation distances and contact angles and then compared to the Kelvin equation. For these capillary bridges, it is found that the radius of curvature is not constant (i.e., the meniscus is not circular) and that the Kelvin equation is a non-physical extrapolation as the system approaches zero saturation or as the separation distance decreases. Therefore, the Kelvin equation best describes curvatures for pure-component systems or for capillary bridges that are near or at saturation and with large plate separations. Dry adhesion caused by dipole-dipole interactions (i.e.,van der Waals forces) have also been considered. The Hamaker constants (which are a measure of the van der Waals forces) and dispersive surface energies have been characterized for ten energetic powders using inverse gas chromatography. It has been determined that the effect of the amount of fuel additives in the energetic powders on Hamaker constants is not statistically significant. In addition, the Hamaker constants agree with Lifshitz theory indicating that inverse gas chromatography is a possible alternative for characterizing the dry adhesion of powders. Lastly, when combined with a better prediction of capillary forces, these experimentally determined Hamaker constants can lead to better models describing the removal of these energetic materials. Finally, an ancillary project investigating the nanoscopic, chemical properties of crystalline griseofulvin embedded in polymer is also included in this dissertation. Obtaining small-scale chemical information from traditional infrared (IR) spectroscopy has recently been improved from 3-30 μm to 10-100 nm by combining atomic force microscopy (AFM) with IR and is known as AFM-IR. It is shown that AFM-IR can chemically distinguish drug nanoparticles embedded in polymer with a sub-100 nm resolution, which is a considerable improvement over traditional IR techniques. Corwin Green Graduate Office Secretary School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette, IN 47907 E-mail: csgreen(a)purdue.edu<mailto:csgreen@purdue.edu> www.engineering.purdue.edu/ChE<https://engineering.purdue.edu/ChE/index.html>

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FW: OSHA Inspections
by Valley, Jeffrey L 03 Aug '15

03 Aug '15

From: Valley, Jeffrey L Sent: Monday, August 03, 2015 8:41 AM To: 'cheq(a)ecn.purdue.edu'; 'chmegrad(a)ecn.purdue.edu' Subject: OSHA Inspections BE ADVISED - Tentatively tomorrow morning , Aug. 4th , OSHA will begin inspections of all the rooms in the building to make sure we are compliant. The Dept.'s Safety Committee conducted an inspection in June and reported back any violations or possible violations that were found and hopefully they have been corrected since then. Please check your office or labs again to verify that all is as it should be according to policy. If you have any questions please contact me. Thanks. Jeff Valley

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My term as Head
by Varma, Arvind 01 Aug '15

01 Aug '15

Dear Colleagues, I joined Purdue as ChE Head on January 1, 2004. Following two five-year terms, beginning January 1, 2014 I accepted a partial term of "approximately three years." In my mind, approximately 3 years meant 2.5 to 3.5 years. Over the past several months, I decided to make the term duration definitive. I am writing to inform that I plan to leave my Head position effective July 31, 2016 - 2.5 years into my current term. Dean Leah Jamieson is aware of my plans - the full one-year notice will permit her to conduct a search to appoint a new Head effective August 1, 2016. My personal plan is to be on a one-year leave and return to the faculty effective August 1, 2017 to continue my teaching and research programs. It has been my honor to serve as the 10th Head of our School, since its founding on June 14, 1911. I have tried my best to uphold the high standards of leadership and excellence established by my distinguished predecessors. During my service, I have been overwhelmed by the strong support of the faculty, staff, students, alumni, corporate and other friends. The support of the College administration, notably by Deans Linda Katehi and Leah Jamieson, has also been very important for me and our School. I thank all for the opportunity to serve and look forward to completing the last year of my term to help raise our School to even greater heights - our collective future is brilliant! With best wishes, Arvind Arvind Varma R. Games Slayter Distinguished Professor Jay and Cynthia Ihlenfeld Head of Chemical Engineering Purdue University

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Nicole Devlin Dissertation Defense, Monday, August 3rd, at 1:00 p.m. in FRNY 3062B
by Green, Corwin S 28 Jul '15

28 Jul '15

This e-mail is to announce that Nicole Devlin will be defending her dissertation, The Separation of Two Different Sized Particles Via Droplet Evaporation, on Monday, August 3rd, at 1:00 p.m. in FRNY 3062B. The dissertation is directed by Dr. Harris, and the abstract is below. All are welcome to attend. Abstract: An evaporating droplet with different sized particles was examined both computationally and experimentally. During evaporation, particles can naturally separate into concentric rings by size with one ring per particle size. The objective of this investigation was to determine factors that contribute to this separation process. Computationally, the finite element method was used to solve a transport model for the droplet fluid velocity in two directions (radial and axial), the pressure, the temperature inside the droplet, and the concentration of each particle size. Experimentally, an aqueous droplet with 1 µm and 3 µm polystyrene spheres was evaporated on a silicon substrate. It was determined that several factors contribute to particle separation. First, the surface tension driven Marangoni currents caused by evaporative cooling on the droplet surface significantly affect the separation process. The Marangoni currents keep the particles suspended in the droplet for the majority of the evaporation, which allows for separation by geometric constraints. A maximum packing concentration for the spheres was implemented in the simulations and without Marangoni currents, the maximum packing limit is reached quickly, before separation can occur. Second, gravity was determined to have a large effect on particle deposition. Pendant droplet simulations and experiments result in larger (3 µm) particles depositing in the center of the droplet and the smaller (1 µm) particles depositing on the edge of the droplet. The third investigation was a computational study on the influence of buoyancy-driven flow in an evaporation. It was determined that buoyancy-driven flow is present in the initial stages of droplet evaporation, especially when the environment is humid. And finally, an experimental investigation on the surface roughness and droplet contact line depinning on particle separation was conducted. Both high surface roughness and contact line depinning prevent the separation of particles in an evaporating droplet. Corwin Green Graduate Office Secretary School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette, IN 47907 E-mail: csgreen(a)purdue.edu<mailto:csgreen@purdue.edu> www.engineering.purdue.edu/ChE<https://engineering.purdue.edu/ChE/index.html>

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