Controlled environment life support system: Calcium-related leaf injuries on plants

Calcium related injuries to plants grown in controlled environments under conditions which maximize plant growth rates are described. Procedures to encourage movement of calcium into developing leaves of lettuce plants were investigated. The time course and pattern of calcium accumulation was determined to develop effective control procedures for this injury, termed tipburn. Procedures investigated were: (1) increasing the relative humidity to saturation during the dark period and altering root temperatures, (2) maximizing water stress during light and minimizing water stress during dark periods, (3) shortening the light-dark cycle lengths in combination with elevated moisture levels during the dark cycles, (4) reducing nutrient concentrations and (5) vibrating the plants. Saturated humidities at night increased the rate of growth and the large fluctuation in plant water potential encouraged calcium movement to the young leaves and delayed tipburn. Root temperature regulation between 15 and 26 C was not effective in preventing tipburn. Attempts to modulate water stress produced little variation, but no difference in tipburn development. Variations in light-dark cycle lengths also had no effect on calcium concentrations within developing leaves and no variation in tipburn development. Low concentrations of nutrient solution delayed tipburn, presumably because of greater calcium transport in the low concentration plants. Shaking of the plants did not prevent tipburn, but did delay it slightly

Apparatus and method for protecting a photographic device Patent

Camera protecting device for use in photographing rocket engine nozzles or other engine component

Resettable binary latch mechanism for use with paraffin linear motors

A new resettable Binary Latch Mechanism was developed utilizing a paraffin actuator as the motor. This linear actuator alternately latches between extended and retracted positions, maintaining either position with zero power consumption. The design evolution and kinematics of the latch mechanism are presented, as well as the development problems and lessons that were learned

Controlled environment life support system: Growth studies with potatoes

Results of experiments conducted to maximize the productivity of potatoes grown under controlled environmental conditions are discussed. A variety of parameters is examined which affect potato growth, specifically, photoperiod, light intensity, temperature, nitrogen nutrition, carbon dioxide concentration and culture techniques. These experiments were conducted using five different cultivars, Russet Burbank, Norchip, Superior, Kennebec and Norland. To achieve high productivity, three specific objectives were explored: (1) to develop effective cultural procedures, (2) to determine the most effective photoperiod and (3) to develop a mist culture system. It is felt that the productivity obtained in this study is below the maximum that can be obtained. High irradiance levels coupled with tuber-promoting conditions such as cooler temperatures, increased CO2 levels and lowered nitrogen concentrations should allow increases in tuber production. Tuberization appears to be accelerated by short daylengths although final yields are not increased. Mist culture techniques have not yet produced fully developed tubers. The use of supporting media and alteration of the nitrogen content of the mist solution are being explored as a way to allow tubers to develop to maturity

Utilization of potatoes in bioregenerative life support systems

Data on the tuberization, harvest index, and morphology of 2 cvs of white potato (Solanum tuberosum L.) grown at 12, 16, 20, 24 and 28 C, 250, 400 and 550 micromol/s/m photosynthetic photon flux (PPF), 350, 1000 and 1600 microliter 1 sup -1 CO2 is presented. A productivity of 21.9 g/m day sup -1 of edible tubers from a solid stand of potatoes grown for 15 weeks with continuous irradiation at 400 micromol/s/m, 16 C and 1000 microliter 1 sup -1 CO2 was obtained. This equates to an area of 34.3 sq m being required to provide 2800 kcal of potatoes per day for a human diet. Separated plants receiving side lighting have produced 32.8 g/m day sup -1 which equates to an area of 23.6 sq m to provide 2800 kcal. Studies with side lighting indicate that productivities in this range should be realized from potatoes. Glycoalkaloid levels in tubers of controlled environment grown plants are within the range of levels found in tubers of field grown plants. The use and limitation of recirculating solution cultures for potato growth is discussed

Human Rights Education Here and Now: U.S. Practices and International Processes

As a U.S. national, I had been steeped in the language of civic education and peace education, but had not come across “human rights” and didn’t initially understand how these standards and the United Nations could have any bearing on curriculum and classroom practices, aside from a reference to the United Nations in social studies classes

Senior Capstone Project final research report : Linking services : Lyceum of Monterey County and Monterey Bay Charter School

The purpose of this capstone project is to link the services offered by the Lyceum of Monterey County to Monterey Bay Charter School in order to meet the school\u27s need for an after school program appropriate for sixth, seventh and eighth grade students. Through experiential learning opportunities in art, music, and drama children who participate will be exposed to hands-on learning experiences that will challenge them to learn by doing, encourage creative self-expression, and realize their potential to succeed

The John Glenn College of Public Affairs Washington Academic Internship Program

STEP Category: InternshipsI spent 12 weeks living and working in Washington, D.C. as John Glenn Fellow with a cohort of 35 other Ohio State students. We interned 32 hours a week, Monday-Thursday, and participated in weekly "study tours" and "policy salons" on Fridays and evenings. We also wrote a capstone policy paper, and took a class on issues in contemporary governance. For this whole program, I received 12 Ohio State credit hours. I strongly recommend WAIP to anyone interested in government, policy, or nonprofits.The Ohio State University Second-year Transformational Experience Program (STEP)Academic Major: Public AffairsAcademic Major: Women's, Gender, and Sexuality Studie

Folding Forms

“Folding Forms” is a creative research project that examined the process of converting two-dimensional graphics into three-dimensional forms for architectural and interior use. The work required a non-linear, design process involving hand sketching, digital graphics, printing, scoring, cutting and folding, resulting in conceptual, folded paper forms. Extensive prototype and exploratory models were built to achieve the desired outcome. The seemingly simple graphics produce complex forms