News Archive

The following part-time positions have been posted within the past week to UMBCworks. Login to your account (via the link in the Jobs & Internships topic in myUMBC) and find details and application instructions as well as hundreds of other job postings!

9258323 - Office Assistant - LightGrid, LLC
9258265 - Council Assistant - Office of Baltimore Councilman Jim Kraft
9258246 - Social Services Personnel - Crofton Care and Rehabilitation


Last Update: 05/21/2013 - 5:52pm

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Artemis computing camp for rising 9th grade girls
 


Last Update: 05/20/2013 - 4:46pm

Meet the 2013 Artemis Staff

Rose Carignan is majoring in Computer Engineering

Catherine Rossbach is a Math/Physics major with a minor in Computer Science

Shari Kurland is majoring in Computer Science

Neena Paul is majoring in Computer Science

Shawn Lupoli is an lecturer in Computer Science

 

The Artemis Project is a five-week summer program held at UMBC for rising 9th grade girls interested in computing. Artemis 2013 will be in session from June 24 to July 26. Camp will be held from 9:00am-3:00pm Monday through Friday on the UMBC campus. The Artemis Project program originated at Brown University in 1996 and is being brought to UMBC by Professor Marie desJardins through her contact with Amy Greenwald at Brown..

Creative and motivated girls who are curious about mathematics, science or computing and are entering ninth grade in the fall of 2013 can apply. No prior computer experience is necessary or expected.

UMBC's Artemis Project program will be led and taught by four accomplished undergraduate women from UMBC's Department of Computer Science and Electrical Engineering. Shawn Lupoli, who is a lecturer in UMBC's Computer Science program, is the faculty advisor. The Artemis staff are diverse and have a wealth of knowledge and experience in computer science, computer engineering, mathematics and the sciences.

Participants will spend a part of each day learning about different topics in computer science such as computer architecture, cryptology, artificial intelligence and robotics. Students will spend time in the computer lab developing programs in Alice and Python and using applications like Adobe Photoshop and Dreamweaver.

Over the course of the five weeks the group will go on several field trips, listen to and interact with guest speakers to hear about their jobs or research and participate in fun outdoor activities. The field trips will take place every Friday to places like NASA's Goddard Space Flight Center, the Baltimore Science Center and the National Cryptologic Museum. At the end of the program, students will have a day where they can showcase the work they have done for their families and members of the UMBC community.

By the end of the program, students will have had a rigorous introduction to computer science and engineering and applications of technology. They will have learned to think more conceptually and have practical skills that they can carry with them wherever their future leads.

The fee for the camp is $1000, which covers five weeks of lessons, field trips, lunch, and a t-shirt for each student. Financial aid is available. You can find information and application forms on the 2013 UMBC Artemis site.

For more information you can contact one of the people involved i.n this summer's camp. The coordinators are all women who are undergraduate studnets who are studying either computer science or computer engineering.

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The faculty advisor for the 2013 Artemis Project camp is:

 


Last Update: 05/20/2013 - 11:41am

You don’t know until you try.

This is what the leaders behind Computing Education for the 21st Century (CE21-Maryland) have figured out. Drs. Marie desJardins, Penny Rheingans, and Susan Martin say that removing the mystery and misconceptions surrounding Computer Science is the key to getting more women and minorities to purse careers in the field.  

Historically, Computer Science has been dominated by white males. Just take a look at the numbers. In 2010-11 only 12.7% of computing degrees went to women. A mere 4.6% of Computer Science graduates were African Americans and 6.5% were Hispanics.

It’s not that women and minorities are no good at Computer Science.  It’s that they often think they’re no good. When you walk into a classroom and no one looks like you, it’s easy to feel like you don’t belong.

Dr. Marie desJardins, a CSEE professor, gives one part of the explanation for this trend. “Youth gaming culture is really dominating Computer Science majors,” she says. Boys who love video games naturally gravitate to Computer Science in college. Women aren’t typically avid gamers. Instead, they tend to gravitate towards social careers–not something they associate with the field of Computer Science.

Herein lies the problem: most of us don’t know what computer scientists actually do. “There are some iconic careers that we understand,” says CSEE Professor Penny Rheingans. “We know what doctors do. We know what lawyers do. But, nobody knows what Computer Scientists do.”

Only by experiencing the discipline firsthand will kids understand if the field is for them. Take Dr. Rheingans, who was headed down the path to becoming a lawyer when she took a Computer Science class: “And I fell in love,” she says. It was hard and sometimes frustrating, but that challenge got her hooked. “Not enough students have the opportunity to experience that.”

Even if women and minorities want to take Computer Science, they don’t always have the opportunity in high school. Throughout Maryland, inconsistent curriculum and spotty availability has made it hard for students to be introduced to the subject.  

Computer Science is not a graduation requirement, nor is it even offered at every Maryland high school. Most schools offer it as an elective like ceramics or woodshop. Since the class doesn’t count for credit, those students– who aren’t otherwise encouraged by parents, or a longstanding love of computers–don’t have much incentive to take it.

Computers are becoming an increasingly ubiquitous part of our lives. As such, Dr. desJardins thinks that Computer Science should be a requirement for high school students. “We make them take Government, Math, Science, and English. But, we don’t make them take Computer Science—but it’s the fastest growing job market of any discipline,” she says. “I think it’s morally wrong that we’re not teaching children how to master this technology.”

In March 2012, Drs. desJardins, Rheingans, and Martin formed CE21-Maryland to get a deeper understanding of the shortcomings of Computer Science education in Maryland, and to help solve this problem. The group is supported by NSF’s Computing Education for the 21st Century (CE21) program.

Last August, CE21-Maryland held its first mini-summit to raise awareness of these issues among Computer Science high school teachers across the state. The summit successfully helped establish connections among teachers who share this passion for change. “Having a community is absolutely important to helping empower people,” says Dr. Rheingans, who has proven the importance of community first-hand as the director of UMBC’s Center for Women in Technology (CWIT).

On May 17, CE21-Maryland will hold its second Summit for Computing Education. Teachers, administrators, legislators, and industry leaders will gather at UMBC to explore these issues, network, and discuss plans for increasing the number and diversity of students studying Computer Science in our state.

The summit will include a college student panel, where current computing majors will share their journey to becoming Computer Science majors. One session will take a look at the AP CS Principles course, a proposed AP course being developed by the College Board and National Science Foundation, with pilots offered around the country.

Dr. desJardins realizes that recognizing the Computer Science curriculum problem is a lot easier than fixing it.  “It’s a chicken or the egg problem,” she says. Regulating Computer Science classes across the state can’t happen until teachers are trained to teach it. Training is not likely to happen unless enrollment increases. CE21-Maryland envisions a two-pronged approach to train teachers and make connections with legislators who can make a difference.

The women behind CE21-Maryland are working hard to change the compostion of Computer Science majors. But, why?

“First of all it’s a numbers problem. Second of all it’s a diversity problem,” explains Dr. Rheingans. By 2018, nearly 40,000 new computing-related jobs will be available in Maryland each year. But, only about 2,000 bachelor’s degrees in computing and information systems are awarded by Maryland institutions annually. Recruiting more women and minorities to the major will help satisfy the huge need for computing majors in the future.   

But, perhaps more importantt is the chance to add diversity to the next generation of technological problem-solvers. “Different perspectives leads you to stronger, more robust solutions,” she says.


Last Update: 05/16/2013 - 12:15pm

Ph.D. Dissertation Defense

High Power Mid-infrared Quantum Cascade Laser Array
for Standoff Photoacoustic Chemical Detection

Xing Chen

1:00-3:00pm Friday, 17 May 17 2013, TRC CASPR Conference Room

Quantum cascade lasers (QCLs) are compact, portable, powerful semiconductor laser sources with emission wavelengths from mid-infrared (mid-IR) to terahertz (THz) regions of the electromagnetic spectrum. Mid-IR (i.e. wavelengths from 3 to 20 µm) QCLs are of great importance in a wide range of applications such as trace gas sensing, environmental monitoring, free space communication, medical diagnosis and so on. High power QCLs are particularly important to applications such as infrared counter measure (IRCM) and standoff chemical detections. In such applications, the system performances critically depend on the amount of power a QCL can produce. This dissertation includes two major studies: the first part of the dissertation includes design, fabrication and characterization of high power mid-IR QCL arrays; the second part involves standoff chemical detection using QCLs as laser sources and photoacoustic effect as sensing technologies.

In the first part of the dissertation, we design, fabricate and characterize multi-emitter QCL arrays consisting of multiple narrow laser stripes. Simulation results indicate that the proposed multi-emitter laser arrays present much better thermal performance than a broad area laser device, while having the same thermal management ability as a single narrow stripe device. We have successfully fabricated edge emitting and surface emitting QCL arrays with 5 and 16 emitters. Experimental results show that, with the same laser cavity length, a QCL array with 5 emitters produces over 3 times more power than a single emitter laser device. QCL array with 16 emitters generates about 4 W output peak power at wavelength ~7.9 µm. We have also fabricated surface emitting QCL arrays and demonstrated single mode emission.

The second part of the dissertation involves using high power mid-IR QCLs to perform standoff chemical detections based on photoacoustic sensing technologies. Photoacoustic effect is a light-matter interaction effect that involves generation of acoustic waves when a medium absorbs electromagnetic energy from light. It has been known as a sensitive spectroscopic technique for chemical sensing.

Standoff photoacoustic chemical detection with distance more than 41 feet using quantum cascade laser operated at relatively low power, less than 40 mW, is demonstrated. A simplified theoretical model is developed for pulsed laser photoacoustic effect in open-air environment. The standoff photoacoustic signal can be calibrated as a function of different parameters such as laser pulse energy, gas vapor concentration and detection distance. The results yield good agreements with theoretical model. Standoff detection of solid phase explosive chemicals has also been demonstrated by the use of an ultra-sensitive microphone and acoustic reflector. More than 8 feet detection distance is obtained for standoff photoacoustic sensing of explosives.

Committee: Drs. Fow-Sen Choa (Chair), Brian Cullum, Yordan Kostov, Ryan Robucci, Chen-Chia Wang and Li Yan


Last Update: 05/16/2013 - 12:01pm