Circuit protects regulated power supply against overload current

Sensing circuit in which a tunnel diode controls a series regulator transistor protects a low voltage transistorized dc regulator from damage by excessive load currents. When a fault occurs, the faulty circuit is limited to a preset percentage of the current when limiting first occurs

Regulated power supply Patent

Design, development, and operating principles of power supply with starting circuit which is independent of voltage regulato

Closing the California Clean Energy Divide: Reducing Electric Bills in Affordable Multifamily Rental Housing with Solar+storage

This economic analysis indicates that pairing solar PV with battery storage systems can deliver significant electricity bill savings for California affordable housing residents and property owners.Battery storage is emerging as an effective new strategy for reducing electricity costs for affordable multifamily rental housing in California. Battery storage systems not only provide economic returns today, they can also preserve the value of solar in an evolving policy and regulatory environment. Because batteries empower owners of solar photovoltaic (PV) systems to take control of the energy they produce and when they consume it, storage can deliver deeper cost reductions that can be shared among affordable housing owners, developers, and tenants.California has installed numerous integrated solar and battery storage projects; however, few have served lowincome tenants or owners of affordable rental housing. This disparity is due to many factors, including a lack of information about the economics of these systems in multifamily housing. To provide that needed information, Clean Energy Group, California Housing Partnership, and Center for Sustainable Energy, with analytical support from Geli, are embarking on a series of reports on solar and storage in California affordable multifamily rental housing.This first report examines the utility bill impacts of adding battery storage to stand-alone solar in affordable rental housing facilities in California's three investor-owned utility service territories, each with different rate structures. It is the first such report ever completed on these technologies in this sector in California.The report reaches several key conclusions:Under current utility rate tariffs, the combination of solar and storage technologies could virtually eliminate electric bills for many owners of affordable housing properties. Unlike stand-alone solar, which reduces energy consumption expenses but does little to offset demand related charges, a properly sized solar and battery storage system can eliminate nearly all electricity expenses, resulting in an annual electric utility bill of less than a few hundred dollars in some cases.It makes good economic sense today for solar and battery storage to be installed in affordable multifamily rental housing in California. The addition of battery storage to solar improves the economics of each property analyzed across all utility territories, reducing project payback by over three years in some cases.The addition of storage technologies has the potential to nearly double stand-alone solar electricity bill savings at about a third of the cost of solar. For example, the addition of a $112,100 battery storage system to a$385,000 solar installation increased savings from $15,000 per year to$27,900, an 85 percent increase in savings for only a 29 percent increase in cost

Master of Fine Arts

thesisAs a designer, I am influenced by the appearance and tactility of the materials that surround me. I notice their color, shape, texture, type and decoration. My subconscious records these details and replays them as I design. I have a particular affinity for things with history. For this reason I am drawn to the collection of materials that once belonged to ancestors and family members residing in my grandmother's attic. These items range from fine china and linens to boxes of letters, photographs, toys, and other ephemeral materials. I initially justified my interest in documenting this collection as a way to use my graphic design skills in service to my grandmother, who feels compelled to plan a way to distribute her things to her descendants before her death. However, I am also compelled to record the collection as bones in the skeleton of my own identity. "In the West, the fact of collecting is linked to the construction of identity. Baudrillard points out that it is "a dimension of our lives that is both essential and imaginary, as essential as dreams themselves."1 By handling the material things that surrounded my ancestors when they lived, I hope to divine something of who they were and how much of them is in me. All of the choices they made, minor or major,led to my existence, and perhaps my disposition. In some way these objects retain a memory of all the things that involved them, much like German psychologist Ewald Hering "concluded that every living cell contains the memory of the experience of the entire series of its parent cells and even those of former generations... every moment leaves traces that continue to affect all subsequent physical or mental processes. The past collects in the fibers of the body as it does in the mind and determines the way we walk and dance as well as the way we think.

Strengthening Community Partnerships Through Sponsorship

Session presented on Thursday, September 25, 2014, and Wednesday, September 24, 2014: For the past 28 years, the Delta Phi chapter of Sigma Theta Tau has partnered with a local College of Nursing to promote nursing scholarship within the community through an event entitled Kaleidoscope of Nursing Research Day. The Kaleidoscope of Nursing Research Day is a half-day event that showcases faculty, clinical partner and student research in order to celebrate nursing scholarship. Three years ago, the Delta Phi chapter became the sole promoter and planner of this event as a result of changes within the College. In an effort to sustain the culture of scholarship, as well as to improve publicity of the event, the Delta Phi chapter of Sigma Theta Tau initiated a pilot project to identify community sponsors willing to partner with our chapter to promote nursing research and collaboration. Sponsorship letters were developed by the chapter board and distributed to five prominent clinical partners central to the success of the traditional baccalaureate nursing program. Levels of sponsorship were defined by chapter leaders and sent to chief nursing executives or regional administrators locally. Support was garnered from three of the five community agencies - two of which provided support at the gold, or highest level. Sponsors were given the opportunity to provide displays advertising their organization at the event as well as encouraging nursing employees to submit abstracts and participate in the dissemination of their scholarship. One sponsor indicated gratitude for the invitation to support nursing scholarship while also encouraging their employees to pursue nursing research. The support of these prominent health care agencies within our community lends credibility to the event as well as enhances connections between clinical and academic settings. This successful pilot provided encouragement to continue to expand partnerships with community agencies while fostering shared scholarship to serve the needs of our community. Future plans are in place to reach out to additional community partners for the advancement of nursing scholarship and research within our community