Crafting a Degree, Empowering Students, Securing a Nation: The Creation of a Modern Cyber Security Degree for the 21st Century

To create the next generation of skilled university graduates that would help in filling the national need for cybersecurity, digital forensics, and mobile computing professionals, a team of minority/under-represented graduate students, the University Upward Bound Program (a federally funded program and part of the U.S. Department of Education; one of 967 programs nationwide) staff, and faculty from the Computer Science (CS) department got together and proposed a focused 10-week long funded summer camp for two local high schools with the following objectives: 1. Provide graduate students to instruct in the areas of` mobile application development, forensics and cyber Security 2. Provide CS one-on-one mentors for students while conducting their work-based learning experience in Computer Science 3. Assign hands-on interdisciplinary projects that emphasize the importance of STEM fields when using and developing software applications. 4. Promote and develop soft skills among participants including leadership, communications skills, and teamwork. 5. The proposal was funded, and the summer camps were conducted in the summer of 2019 with participation of more than 40 students from two local high schools. 6. The paper will present our efforts in each of the above areas: 7. The criteria/application/selection of high school student based on interest and needs. 8. The criteria/specification for purchased equipment 9. The selection and hiring of graduate students as instructors who can not only teach, but also serve as role models for the incoming students. 10. The development of course material into two parts: foundational material required by everyone, and specialized material where the student selects his/her area of interest. Presented results will show how the summer-camps benefited the students through the focused instruction given by graduate students, and how the students gained valuable knowledge and problem-solving skills in certain STEM fields. 11. The mentorship provided by the CS faculty to the instructors and the students through scheduled visits and agile approach for the software projects assigned. 12. The development of soft skills: how the planned social activities helped in honing the students software skills and allowed them to interact with people from all over the world (through faculty mentorship, conference attendance, project presentation), and prepared them academically and socially for their upcoming university experience. By presenting our study, we hope that other institutions who are considering summer camps can benefit from our experience by adopting best practices while avoiding pitfall

Weak Mitoticity of Bounded Disjunctive and Conjunctive Truth-Table Autoreducible Sets

Glaßer et al. (SIAMJCOMP 2008 and TCS 2009 (The two papers have slightly different sets of authors)) proved existence of two sparse sets A and B in EXP, where A is 3-tt (truth-table) polynomial-time autoreducible but not weakly polynomial-time Turing mitotic and B is polynomial-time 2-tt autoreducible but not weakly polynomial-time 2-tt mitotic. We unify and strengthen both of those results by showing that there is a sparse set in EXP that is polynomial-time 2-tt autoreducible but not even weakly polynomial-time Turing mitotic. All these results indicate that polynomial-time autoreducibilities in general do not imply polynomial-time mitoticity at all with the only exceptions of the many-one and 1-tt reductions. On the other hand, however, we proved that every autoreducible set for the polynomial-time bounded disjunctive or conjunctive tt reductions is weakly mitotic for the polynomial-time tt reduction that makes logarithmically many queries only. This shows that autoreducible sets for reductions making more than one query could still be mitotic in some way if they possess certain special properties

Study of the Judder Characteristics of Friction Material for an Automobile Clutch and Test Verification

Abstract The friction judder characteristics during clutch engagement have a significant influence on the NVH of a driveline. In this research, the judder characteristics of automobile clutch friction materials and experimental verification are studied. First, considering the stick-slip phenomenon in the clutch engagement process, a detailed 9-degrees-of-freedom (DOF) model including the body, each cylinder of the engine, clutch and friction lining, torsional damper, transmission and other driveline parts is established, and the calculation formula of friction torque in the clutch engagement process is determined. Second, the influence of the friction gradient characteristics on the amplification or attenuation of the automobile friction judder is analyzed, and the corresponding stability analysis and the numerical simulation of different friction gradient values are carried out with MATLAB/Simulink software. Finally, judder bench test equipment and a corresponding damping test program are developed, and the relationship between the friction coefficient gradient characteristics and the system damping is analyzed. After a large number of tests, the evaluation basis of the test is determined. The research results show that the friction lining with negative gradient characteristics of the friction coefficient will have a judder signal. When the friction gradient value is less than −0.005 s/m, the judder signal of the measured clutch cannot be completely attenuated, and the judder phenomenon occurs. When the friction gradient is greater than − 0.005 s/m, the judder signal can be significantly suppressed and the system connection tends to be stable