The Polytechnic University of Puerto Rico —commonly referred as Poly or La Poly in Spanish— is a private non-profit university located in San Juan, Puerto Rico. PUPR offers a broad range of technical degrees; specializing in engineering professions. Wikipedia.
News Article | November 1, 2016
When Richard Marzan opened House Doctors in the fall of 2015, it was because he saw an opportunity to meet two needs: he wanted to begin a new career after retiring from the Army and the community needed a trustworthy, professional handyman service. Now Rich and his team are thrilled to celebrate the one-year anniversary of House Doctors of McLean. “The first year of a new business is always a building year and we’ve done that. Now, with a solid foundation, we are moving forward with plenty of lessons learned and a bright future. We exceeded all expectations and we’re receiving strong community support – I’m very excited about year two,” Rich said. House Doctors of McLean offers professional handyman services in Dunn Loring, Falls Church, Great Falls, McLean, Arlington, Oakton, Tysons and Vienna as well as the surrounding areas. The team at House Doctors is focused on professionalism, service excellence and quality workmanship. Their goal is to make home improvements easier for their customers by being on time, doing the job right and offering a one year workmanship guarantee. Rich Marzan, a retired Lieutenant Colonel, served in the United States Army for more than 27 years. He is an ROTC Distinguished Military Graduate and a 1995 graduate of the Armor Officer Basic Course at Fort Knox, KY. Marzan earned his Bachelor’s degree in Industrial Management from the Polytechnic University of Puerto Rico and his Master’s degree in Administration from Central Michigan University. He is also a graduate from the Captains Career Course and the United States Army Command and General Staff College. Rich Marzan’s awards and decorations include the Defense Meritorious Service Medal, Meritorious Service Medal, Iraq and Afghanistan Campaign Medals, Humanitarian Service Medal, NATO Medal, and the Parachutist and Rigger Badge. “I retired from the military in 2015 and I didn’t want to transition into an office job or government contracting work. With the help of the Army Retirement Services, I met with a business coach who opened my eyes to franchising. When I talked to the folks at House Doctors, I knew this business would be a good fit for me and for the region I call home,” Rich said. “House Doctors is a professional handyman service and that means any repair we do will be done right. You won’t be disappointed in our high quality work and, if there are ever any concerns, we are a local company and we are here to help.” House Doctors’ experienced, insured, background checked and uniformed handymen technicians specialize in projects that take two hours to two days to complete, such as light remodeling and repairs of decks, doors, bathrooms and kitchens; repairing drywall; painting; exterior repairs; making home modifications and much more. In addition to using lessons learned to make the second year of business even stronger, Rich is currently working with the House Doctors franchising team to expand his service area into Maryland. “We have an incredible, hardworking team and I know people outside our current service area could use our expertise. Hopefully, we will be serving the people of Maryland before Thanksgiving,” Rich said. For more information about House Doctors of McLean or for an estimate on your project, call (703)639-0391, email HD535(at)HouseDoctors.com or visit http://housedoctors.com/handyman-mclean/. House Doctors Handyman Service has been helping homeowners across the United States with home repair and light remodeling projects for more than 20 years. Our friendly, insured and bonded craftsmen are scheduled to be there on time and are committed to complete customer satisfaction. Each of our technicians are experienced in home maintenance, product installations and a variety of home improvements. We’re so confident in our team and products that every job we perform comes with a one-year guarantee.
Deschapelles B.,Polytechnic University of Puerto Rico
Journal of Structural Engineering | Year: 2011
The analysis of thin-walled structures has been discussed by many theoreticians who produced seminal works. Unfortunately, these studies are based on mathematical formulations which are not easy to understand by the majority of engineers because the background provided by the undergraduate schools does not cover the solution of complex differential equations or the use of area coordinates in the calculation of cross-section properties. Accordingly, practicing engineers are often at a loss in problems involving nonlinear differential equations or the meaning of an elusive mechanical action called bimoment in the evaluation of longitudinal stresses caused by warping torsion. On the other hand, present day formulations should take advantage of the availability of computers that can easily handle the matrix relations on which the finite element analysis is based. This work presents a new finite element that allows the evasion of the aforementioned complexities. The main novelty is the discussion of a nonnodal degree of freedom that efficiently captures the possible shear flow along the longitudinal edges of a beam-column element. © 2011 American Society of Civil Engineers.
Suarez A.,Polytechnic University of Puerto Rico |
Leal-Quiros E.,Polytechnic University of Puerto Rico |
Gonzalez J.,Polytechnic University of Puerto Rico
Journal of Physics: Conference Series | Year: 2015
The electron-molecules collisions in plasmas are fructiferous field of study, particularly in activation of inert species into extremely active chemical reactants. Several gases such as carbon dioxide, methane, nitrogen, argon, water among others are ionized or simply activated under collisions with electrons creating the complex atmosphere plasmas. Based upon the energy distribution of electrons and the cross section of molecules it is possible to stimulate molecules becoming highly active species. This research explores the assembly of methanol over a surface of Cu-O-Zr catalyst when carbon dioxide reacts with water under the plasma developed into the Electron Cyclotron Resonance device (ECR). The process was continuously monitored by a mass spectrometer and the correspondent results show the formation of methanol. The ECR operated at 10-6 torr assisted with a microwave source of 250 Watts of power; the magnetic field was developed with 300 Amp on Helmholtz coils. The mode of operation of plasma was in cusp, and the electron temperature was 6-eV reported by a single Langmuir probe. The mass spectrometry reported the presence of methanol. The catalysts characterization is reported in form of Scanning Electron Microscopy image, a Raman spectroscopy analysis, and the Electron Dispersive Spectroscopy (EDS). © Published under licence by IOP Publishing Ltd.
Torres A.M.,University of Castilla - La Mancha |
Mateo J.,University of Castilla - La Mancha |
Vicente L.M.,Polytechnic University of Puerto Rico
Multidimensional Systems and Signal Processing | Year: 2016
This research proposes an improved narrowband partial adaptive beamformer analysis using a proposed spherical array. Comparison between the fully and the partial adaptive beamformers is given. The study is performed by investigating performance parameters like the beamformer output signal-to-noise ratio and the beamformer output signal-to-interference-plus-noise ratio both in the steady state and along adaptation. Furthermore, computational complexity and convergence speed of the proposed sensor arrangement are also analyzed and examples are given. The results demonstrate that this beamformer considerably reduces the number of complex operations and features faster convergence speed. © 2016 Springer Science+Business Media New York
Rivera Torres P.J.,University of Vigo |
Serrano Mercado E.I.,Polytechnic University of Puerto Rico |
Anido Rifon L.,University of Vigo
Journal of Intelligent Manufacturing | Year: 2015
Modeling manufacturing processes assists the design of new systems, allowing predictions of future behaviors, identifying improvement areas and evaluating changes to existing systems. Probabilistic Boolean networks (PBN) have been used to study biological systems, since they combine uncertainty and rule-based representation. A novel approach is proposed to model the design of an automated manufacturing assembly processes using PBNs to generate quantitative data for occurrence assessment in design failure mode and effects analysis. FMEA is a widely used tool in risk assessment (RA) to ensure design outputs consistently deliver the intended level of performance. Effectiveness of RA depends upon the robustness of the data used. Temporal logic is applied to analyze state successions in a transition system, while interactions and dynamics are captured over a set of Boolean variables using PBNs. Designs are therefore enhanced through assessment of risks, using proposed tools in the early phases of design of manufacturing systems. A two-sample T test demonstrates the proposed model provides values closer to expected values; consequently modeling observable phenomena ((Formula presented.)). Simulations are used to generate data required to conduct inferential statistical tests to determine the level of correspondence between model prediction and real machine data. © 2015 Springer Science+Business Media New York
Geigel A.,Polytechnic University of Puerto Rico
Journal of Computer Security | Year: 2013
This paper presents a proof of concept of a neural network Trojan. The neural network Trojan consists of a neural network that has been trained with a compromised dataset and modified code. The Trojan implementation is carried out by insertion of a malicious payload encoded into the weights alongside with the data of the intended application. The neural Trojan is specifically designed so that when a specific entry is fed into the trained neural network, it triggers the interpretation of the data as payload. The paper presents a background on which this attack is based and provides the assumptions that make the attack possible. Two embodiments of the attack are presented consisting of a basic backpropagation network and a Neural Network Trojan with Sequence Processing Connections (NNTSPC). The two alternatives are used depending on the underlying circumstances on which the compromise is launched. Experimental results are carried out with synthetic as well as a chosen existing binary payload. Practical issues of the attack are also discussed, as well as a discussion on detection techniques. © 2013-IOS Press and the authors. All rights reserved.
Jordan-Conde Z.,Polytechnic University of Puerto Rico |
Mennecke B.,Iowa State University |
Townsend A.,Iowa State University
Computers in Human Behavior | Year: 2014
During the last decade, online social networks such as Facebook™ (Facebook) grew rapidly in popularity and this was due in no small measure to use of these media by adolescents. For many teenagers and young adults, Facebook represents a social institution that can be used by adolescents not only for sharing basic information and for connecting with others, but also as a platform for exploring and divulging information about their identities. To examine issues related to questions about the formation and disclosure of identity-related information by late adolescents, this study investigates the relationship between disclosures of intimate information by late adolescents through Facebook and their stage of psychosocial development. To examine disclosure behaviors of young college students on Facebook, we conducted focus groups in conjunction with a content analysis of Facebook profiles. Findings point to an extended adolescence period resting on the identity construction dilemma posed by digital social networks. © 2013 Elsevier Ltd. All rights reserved.
Perez A.,Polytechnic University of Puerto Rico
IEEE Robotics and Automation Magazine | Year: 2010
The various ways of successfully presenting the research at conferences and competitions are presented. Modern engineers are expected to develop advanced social, communication, presentation, and leadership skills. One must be dare to share the visions about one's research with the community without boosting one's work too much. Well-experienced professionals look for students with concrete perspectives who share a sophisticated view of the field's future. Humility and a good collaborative attitude are crucial to one's success as an engineer. Making sure that one is familiar with the room, the projector, the remote, and the pointer. Presenting one's work with a good and humble attitude at conferences has been the single thing that has opened the most career paths for individuals.
Rodriguez B.,Polytechnic University of Puerto Rico |
Kalathur H.,University of Wisconsin - Madison |
Lakes R.,University of Wisconsin - Madison
Physica Status Solidi (B) Basic Research | Year: 2014
Lattice structures based on bimorph rib elements are fabricated and studied experimentally. The effective piezoelectric sensitivity d is observed to be much larger, by a factor of at least 10 000, in magnitude than that of material comprising the lattice ribs. Bending of the ribs in response to input voltage is responsible for the large sensitivity. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Agency: NSF | Branch: Continuing grant | Program: | Phase: FED CYBER SERV: SCHLAR FOR SER | Award Amount: 824.91K | Year: 2016
This proposal will inaugurate a CyberCorps®: Scholarship for Service (SFS) program at the Polytechnic University of Puerto Rico (PUPR), the second largest Hispanic Higher Education Institution in the USA, serving around 5,000 students in the areas of Engineering, Computer Science, Architecture, and Business Administration. Since its inception, the Institution has graduated approximately 6,000 Hispanic engineers and surveyors. The main goals of the proposed project are: 1) Successfully implement an SFS graduate program to increase research and improve education in technology areas relevant to cybersecurity; 2) Engage students in professional activities such as internships, workshops, outreach, and other SFS-sponsored activities. 3) Increase the number of qualified students entering the fields of information assurance and cyber security to protect and defend the cyberspace. Students will be selected from private and public universities from Puerto Rico and the selected scholars will participate in meaningful summer internships.
The project intends to provide life-changing cybersecurity education to the selected students and to help them lunch life-long cybersecurity professional careers. The project will continue previous efforts to substantially increase the number of women and minorities prepared for graduate studies and careers in Cybersecurity; and will help to alleviate the nationwide shortage of qualified professionals in these areas. Students will be involved in research projects, teamwork and professional development. Research results and thesis of SFS scholars will be disseminated in Cybersecurity journals and conferences, and will also be available through the PUPR web page.