Illinois Institute of Technology

About: Illinois Institute of Technology is a education organization based out in Chicago, Illinois, United States. It is known for research contribution in the topics: Electric power system & Wireless network. The organization has 10188 authors who have published 21062 publications receiving 554178 citations. The organization is also known as: IIT & Illinois Tech.

The system architect's workbench

Abstract: This paper presents an overview of The System Architect's Workbench, a behavioral synthesis system under development at Carnegie Mellon University. This system converts an abstract behavioral description of a piece of hardware into a set of register-transfer components and a control sequence table. Two-synthesis methodologies are supported: one is tuned specifically to design microprocessors, and the other supports a more general design style. Results are presented here for both approaches.

Changing mental illness stigma as it exists in the real world

Abstract: Persons with mental illness frequently encounter public stigma. This review seeks to clarify mental illness stigma and discuss methods for changing stigma in the real world. Following an overview of public stigma we discuss the main avenues recognised for changing stigma in the real world: protest, education and contact; and give examples of anti-stigma strategies in practice. Finally, we discuss the most effective method, contact, in greater detail through three different areas where anti-stigma efforts have been focused: disclosure, children, and patient-based programs. Anti-stigma programs that focus upon the most effective ways to diminish stigma will help bring about change in the stigmatising attitudes of the general public.

Unusual Strong-Coupling Effects in the Tunneling Spectroscopy of Optimally Doped and Overdoped Bi 2 Sr 2 CaCu 2 O 8 + δ

Abstract: Tunneling spectroscopy measurements are reported on single crystals of ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+\ensuremath{\delta}}$ using vacuum tunneling and point-contact methods. A reproducible dip feature in the tunneling conductance is found near $|\mathrm{eV}|\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2\ensuremath{\Delta}$, observed for both voltage polarities in the best resolved spectra. With overdoping the position of the dip continues to scale with $\ensuremath{\Delta}$, and its magnitude decreases as $\ensuremath{\Delta}$ decreases. These results indicate that the dip feature arises from a strong-coupling effect whereby the quasiparticle lifetime is decreased at a characteristic energy of $\mathrm{\ensuremath{\sim}}2\ensuremath{\Delta}$, consistent with an electron-electron pairing interaction.

Wide-Bandgap Solid-State Circuit Breakers for DC Power Systems: Device and Circuit Considerations

Abstract: DC circuit protection applications provide a unique market opportunity for wide-bandgap (WBG) semiconductors, which are outside the conventional focus on power electronic converters. This paper presents an overview of emerging dc power systems, the needs for dc solid-state circuit breakers (SSCBs), and the benefits and advantages of various WBG SSCB concepts. Furthermore, a new class of self-powered SSCBs based on SiC or GaN normally-ON switching devices is proposed in this paper. One implementation of the SSCB concept based on a 1200 V SiC JFET experimentally demonstrated turn-off of a fault current of 125 A at a dc voltage of 400 V within $1~\mu $ s without requiring any external power supply. The SSCB detects short-circuit faults by sensing its drain–source voltage rise and draws power from the fault condition to turn off the SiC JFET. Various implementations of the SSCB concept for unipolar and bipolar capability using both SiC and GaN are also discussed from both device and circuit perspectives. It is concluded that very low ON-resistance normally-ON WBG switching devices are excellent candidates for the emerging SSCB applications.

Optimal Transactive Market Operations With Distribution System Operators

Abstract: Distribution system operator (DSO) has traditionally been responsible for the reliable operation of power distribution systems. The advent of distributed energy resources (DERs) and microgrids in distribution networks has required a new platform for DSOs. The new DSO, which is for the most part an independent agent, is responsible for aggregating a widely dispersed DERs (which include small thermal generation units, energy storage, and demand response) and flexible loads in electricity markets. DSO coordinates and balances the transactive dispatch of supply and demand at the distribution level and links wholesale and retail electricity markets. In this paper, a framework for the day-ahead transactive market is proposed which includes end-to-end power system participants starting from the bulk power ISO and ending at DSO, which includes the management of retail customers with small loads. In this paper, DERs are considered in a local distribution area (LDA). The day-ahead transactive scheduling of LDA is modeled as an MILP and solved using the CPLEX solver. This paper offers numerical results considering a DSO that is responsible for the optimal and secure operation of LDA with microgrids. The simulation results show that the proposed DSO framework in a transactive market can efficiently reduce the supply cost of LDA and increase the GenCos’ payoff considering the optimal power exchange with the ISO.