Multiple IMU system development, volume 1

A redundant gimballed inertial system is described. System requirements and mechanization methods are defined and hardware and software development is described. Failure detection and isolation algorithms are presented and technology achievements described. Application of the system as a test tool for shuttle avionics concepts is outlined

Failure detection and isolation analysis of a redundant strapdown inertial measurement unit

The objective of this study was to define and develop techniques for failure detection and isolation (FDI) algorithms for a dual fail/operational redundant strapdown inertial navigation system are defined and developed. The FDI techniques chosen include provisions for hard and soft failure detection in the context of flight control and navigation. Analyses were done to determine error detection and switching levels for the inertial navigation system, which is intended for a conventional takeoff or landing (CTOL) operating environment. In addition, investigations of false alarms and missed alarms were included for the FDI techniques developed, along with the analyses of filters to be used in conjunction with FDI processing. Two specific FDI algorithms were compared: the generalized likelihood test and the edge vector test. A deterministic digital computer simulation was used to compare and evaluate the algorithms and FDI systems

Bean Leaf Beetle and Soybean Aphid Control Using Foliar Treatments in a Certified-Organic Operation—Neely-Kinyon Trial, 2010-2011

Summary of Project Goal: The goal of this project is to find effective management treatments for the bean leaf beetle (Cerotoma trifurcata) and soybean aphid (Aphis glycines) for use in certified-organic soybeans. The bean leaf beetle is one of the major vectors of bean pod mottle virus, which causes seed staining and can cause a downgrading of the soybeans at market from food grade to feed grade. Feeding from the soybean aphid causes stunted plants, reduced pods and seeds, and can transmit viruses that cause mottling and distortion of the leaves and a reduced seed set. Discolored seeds may also result from this infection. The use of organic pest management treatments may help organic farmers manage bean leaf beetles and the transmission of virus or fungal agents responsible for seed coat staining and maintain the premium received for organic food-grade soybeans. Outcome and Significance: Findings of the experiment show that there were no consistent significant differences between treatments regarding bean leaf beetle populations and seed staining or aphid populations and soybean yields. Although the project did not result in any treatments providing significant control over bean leaf beetle populations or soybean aphid populations, the experiment is still meaningful in that it has shown the inefficacy of four products on bean leaf beetle and soybean aphid populations so future experiments can concentrate on other products, biological control agents, and/or physical trapping methods

Bean Leaf Beetle and Soybean Aphid Control Using Foliar Treatments in a Certified-Organic Operation—Neely-Kinyon Trial, 2010-2011

Summary of Project Goal: The goal of this project is to find effective management treatments for the bean leaf beetle (Cerotoma trifurcata) and soybean aphid (Aphis glycines) for use in certified-organic soybeans. The bean leaf beetle is one of the major vectors of bean pod mottle virus, which causes seed staining and can cause a downgrading of the soybeans at market from food grade to feed grade. Feeding from the soybean aphid causes stunted plants, reduced pods and seeds, and can transmit viruses that cause mottling and distortion of the leaves and a reduced seed set. Discolored seeds may also result from this infection. The use of organic pest management treatments may help organic farmers manage bean leaf beetles and the transmission of virus or fungal agents responsible for seed coat staining and maintain the premium received for organic food-grade soybeans. Outcome and Significance: Findings of the experiment show that there were no consistent significant differences between treatments regarding bean leaf beetle populations and seed staining or aphid populations and soybean yields. Although the project did not result in any treatments providing significant control over bean leaf beetle populations or soybean aphid populations, the experiment is still meaningful in that it has shown the inefficacy of four products on bean leaf beetle and soybean aphid populations so future experiments can concentrate on other products, biological control agents, and/or physical trapping methods

Apollo guidance, navigation, and control: Candidate configuration trade study, Stellar-Inertial Measurement System (SIMS) for an Earth Observation Satellite (EOS)

The ten candidate SIMS configurations were reduced to three in preparation for the final trade comparison. The report emphasizes subsystem design trades, star availability studies, data processing (smoothing) methods, and the analytical and simulation studies at subsystem and system levels from which candidate accuracy estimates will be presented

Organic Corn Seed Coat Treatments

Organic seed treatments have been limited in organic production. Agricoat NaturalII™ is reported to be “an organic liquid biological seed treatment applied as a seed film coating and formulated with beneficial microbes, macro and micro nutrients, amino acids, organic acids, enzymes, proteins, vitamins, and minerals.” It is applied to “promote root growth and protect seedlings against early season soil-borne pathogens, improving germination,stand establishment, and uniformity.

Sweet Corn Variety and Pest Management Trial—Neely-Kinyon Farm, 2004

Organic sweet corn can be successfully grown in Iowa, based on our agricultural resources and our extensive experience with field corn production. With the continuing growth of organic food consumers in the United States, premium prices can be obtained for organic sweet corn from Iowa. With the potential for major markets across the United States identified, research on production, harvesting, and processing protocols is needed to meet this demand. One of the key pests in organic sweet corn production is the corn earworm. Earworm control was improved through the addition of a certified organic spreader-sticker in preliminary tests in 2001. This project investigated variety selection for early markets and the efficacy of the naturally occurring soil bacterium, Bt (Bacillus thuringiensis), for improved pest management of the corn earworm at the Neely-Kinyon Farm

Evaluation of an Organic No-Till System for Organic Corn, Soybean, and Tomato Production

Cover crops for the Organic No–till Plus experiment were planted on September 12, 2005, and consisted of three treatments: 1) a control (no cover crop/tillage used after planting); 2) a cover crop combination of winter wheat (56.25 lb/acre) and Austrian winter pea (18.75 lb/acre), and 3) a cover crop combination of rye (64 lb/acre) and hairy vetch (32 lb/acre). The cover crops were rolled with a roller/crimper mounted, rear-mounted on a tractor on May 25, 2006. The roller consists of a large steel cylinder(10.5 ft wide × 16 in. diameter) filled with water to provide 2,000 lb of weight. Plots planted to the wheat and pea mix were rolled two times, while those in the rye and hairy vetch mix were rolled 2 to 3 times. The corn and soybeans for the experiment were drilled on the same day as rolling (May 25), the soybeans(BR 3F43) at 160,000 seeds/acre and the corn (BR 67M07) at 32,000 seeds/acre. Nine 6-in. Roma tomato seedlings were planted in three replications of each treatment on June 15. Transplants were side-dressed with 0.5 lb/plant of hoop-house compost at the time of transplanting

Evaluation of Organic Pest Management Treatments for Bean Leaf Beetle and Soybean Aphid--Neely-Kinyon Trial, 2004

Bean leaf beetles have continued to be a problem for organic tofu soybean producers throughout the Midwest because of the resulting seed staining, which can downgrade the quality of the soybeans at market. Beginning in 2000, we have evaluated organically approved treatments for bean leaf beetle and fungal control