Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"ripping"”.
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Factors influencing adoption of minimum tillage ripping and animal draught power among smallholder farmers in Zambia
… the adoption of minimum tillage technology of ripping (MTR) and ADP among smallholder farmers in Zambia. It uses panel data from the Rural Agricultural Livelihoods Survey (RALS) conducted by the Indaba Agricultural Policy Research Institute (IAPRI) in 2012 and 2015 in Zambia. The pooled sample …
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Factors influencing adoption of minimum tillage ripping and animal draught power among smallholder farmers in Zambia
… the adoption of minimum tillage technology of ripping (MTR) and ADP among smallholder farmers in Zambia. It uses panel data from the Rural Agricultural Livelihoods Survey (RALS) conducted by the Indaba Agricultural Policy Research Institute (IAPRI) in 2012 and 2015 in Zambia. The pooled sample …
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EVALUATING MINE SOIL PREPARED BY SCRAPER PANS FOR HERBACEOUS PLANTS AND PINE SEEDLINGS AT AN EAST TEXAS LIGNITE SURFACE MINE
… 2) Disking (30-35 cm depth); 3) Single-Ripping (90 cm depth)/Disking (30-35 cm depth); and, 4) Cross-Ripping (90 cm depth)/Disking (30-35 cm depth). Soil physical and chemical properties were investigated at 0-30, 30-60, and 60-90 cm depth intervals. After one growing season, vegetative …
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Physical and Chemical Soil Properties of Ten Virginia Department of Transportation (VDOT) Mitigation Wetlands
… developed soil structure and a lack of deep ripping practices. Many sites also contained high sand content (>50%), which may negatively affect other soil properties. Nine sites had confirmed Hydric Soil Indicators, with their occurrence in a site as high as 70%. Soil reconstruction methods …
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The Use of Veld Restoration Techniques for Rehabilitating Degraded Waterberg Mountain Bushveld in Lapalala Wilderness Reserve, Limpopo Province
… Eight treatments were applied, including soil ripping, sowing grass seed mixtures, and covering treated areas with single and double layers of thorn branches known as brush-packing. These treatments were duplicated at two sites within the game reserve, one of which was located inside the …
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Scaled experimental study on excavation of lunar regolith with rakes/rippers and flat blade
… to JSC-1A. In addition, a math model of the ripping force is developed as a function of material density, which could be the basis of an instrumented-ripper technique for detailed mapping of construction. Prior ripping decreases total excavation energy by up to 20% if the relative density is …
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An assesment of the financial viability of investing in an animal drawn ripper
… Zambia-planting basins for hand hoe farmers and ripping for farmers with access to animal draft power and implements. Maize, cotton, soyabean, sunflower and groundnuts are among the major crops grown by the rural households and were hence considered in this study. Ripping requires some investment …
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An assesment of the financial viability of investing in an animal drawn ripper
… Zambia-planting basins for hand hoe farmers and ripping for farmers with access to animal draft power and implements. Maize, cotton, soyabean, sunflower and groundnuts are among the major crops grown by the rural households and were hence considered in this study. Ripping requires some investment …
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The international covenant on economic social and cultural rights: a critical examination of the relative importance of resource constraints on benchmarks and benchmarking processes in the African context
Ripping away colonial ties and bursting into an era of independence, freedom and development, African states welcomed the international movement for the development of a global human rights system in the 1950s and 60s. The pillars of this system ushered in rights that, it was hoped, would fully …
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In-Flight Fatigue Crack Monitoring of an Aircraft Engine Cowling
… <p>Fatigue cracking was responsible for ripping the top of a fuselage off an Aloha Airlines Boeing 737-200 as it carried passengers over the Pacific Ocean, killing some aboard. This tragedy is perhaps a precursor of problems to come, as our nation’s aircraft age. These planes experience …
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What is really wrong with insider trading?
… and so with the ways fraud occurs on the market, ripping off assets of companies and ultimately investors. Corporate crimes are committed with the help of insiders who may be a director, employee or an officer of the company. Well functioning financial markets, proper criminal justice system and …
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Risk prevention and policy formulation : responding to the 1999 mud-floods catastrophe in El Litoral Central, Venezuela
… This catastrophe ravaged the Caracas seaside, ripping up houses and infrastructure and literally reshaping the coastline and beaches. Historical records indicate that similar natural events leading to landslides have occurred in this region before-each fifty years on average. Moreover, the …
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Appalachian Surface Mine Reforestation Techniques: Effects of Grading, Cultural Treatments and Species Selection
… herbaceous ground cover. On older mines, subsoil ripping to alleviate compaction improved tree survival and growth, in some cases, after five growing seasons. Of the three species groups planted, including Eastern white pine (Pinus strobus), mixed native hardwoods had the best survival and hybrid …
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Climate change adaptation measures in agriculture : a case of conservation agriculture for small-scale farmers in Kalomo District of Zambia
… of crop residue. Within minimum tillage, ripping was found to be practiced on a larger scale compared to making basins. The major challenges include planning and human resource development, financial resource and policy constraints and cultural barriers to adoption of CA.
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Synthesis and characterization of graphene: a raman study of the effect of electromagnetic and proton irradiations on graphene
… individual graphene sheets have progressed, from ripping it with adhesive tape, or gently pushing small graphite crystals along a hard surface to produce high quality graphene by cleaving of graphite, to oxidation of graphite using the modified Hummers method developed by M. Hirata et al. (Carbon …
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Biomass production using short rotation coppice techniques on two coal spoil tips in South Wales
… at the time) included weed control, soil ripping to 500mm and stock proof fencing. After an initial one year establishment period a 'maiden cut’ was undertaken to initiate coppicing. The stools were allowed to grow a further two seasons before harvesting. All interior trees were cut down …
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Beyond Bounds
… that gets a kick out of selling itself, out of ripping its own knickers. This story that lingers interminably like stretch marks. Leave now. Wean yourself off these words. Weave your own song and go with the flow. Cleanse the world with your warm words. Let the future find its own form from your …
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Mechanical Properties of Candidate Materials for Morphing Wings
… direction. A test stand was designed with a gripping device to hold the material. By grounding one side of the material, the other side of the material was pulled using a winch. Using a force transducer and a string potentiometer the required forces and the amount the material was strained was …
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