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Journal articles on the topic "Rock 'N Ball"
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Priyono, Joko, and Robert John Gilkes. "Dissolution Kinetics of Milled-Silicate Rock Fertilizers in Organic Acid." Journal of Tropical Soils 13, no. 1 (January 1, 2008): 1–10. http://dx.doi.org/10.5400/jts.2008.v13i1.1-10.
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A dissolution experiment was carried out to identify the effects of milling condition on dissolution kinetics of silicate rock fertilizers. Initially ground materials (Ø < 250 μm for basalt, dolerite, gneiss, and Ø < 150 μm for K-feldspar) were further milled with a ball mill (Spex 8000) under dry and wet conditions for 10, 60, and 120 minutes. The rock powders were dissolved in a mixture of 0.01M acetic-citric acid at a rock powder/solvent ratio of 1/1000, and the solution was agitated continuously on a rotary shaker at 25o C. The concentrations of dissolved Na, K, Ca, Mg, Al, and Si from the milled rocks were determined at intervals from 1 hour up to 56 days. Results indicated that the relationships of quantity of dissolved rock and elemental plant nutrients (Et) with time (t) were well described by a power equation: Et = Eo + atn with reaction order (n) of 0.3 – 0.8. Milling increased quantity of total and individual dissolved element (Et ), dissolution rate (Rt), the proportion of rapidly soluble rock or element (Eo), and dissolution constant a. The increases in dissolution due to dry milling were larger than for wet milling. Although further proves should be provided, results of this dissolution experiment clearly indicates that SRFs may be used as multinutrient fertilizers as well as remedial materials for acidic soils; and dry milling may be applied as an appropriate method for manufacturing effective SRFs.
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Gálviz-García, Beatriz, D. Torres-Torres, E. Martínez, Jhon J. Olaya-Flórez, and Elisabeth Restrepo-Parra. "Influence of Slight Pressure Variations on the Mechanical and Tribological Properties of Ti/TiAlV/TiAlVN Coatings Produced by Magnetron Sputtering." Modern Applied Science 12, no. 10 (September 29, 2018): 171. http://dx.doi.org/10.5539/mas.v12n10p171.
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Ti/TiAlV/TiAlV(N) coatings were deposited by D.C magnetron sputtering technique. This experiment was carried out on 316L stainless steel substrates, and it was produced varying the working pressure, in an environment composed by a mixture of Ar/N2. While Ti and TiAlV layers were produced at a constant pressure, TiAlV(N) layers were grown at 0.6, 0.8, 0.9 and 1.0 Pa, for samples M1, M2, M3 and M4, respectively. After the production, morphological, compositional and structural properties of coatings were studied using techniques as x-ray diffraction (XRD), energy dispersive spectroscopy (EDS), and atomic force microscopy (AFM). Next, mechanical and tribological properties such as hardness, Young’s modulus, coefficient of friction, and adherence were evaluated, using nanoindentation, scratch test and ball on disc methods. XRD analysis evidenced that coatings crystallized in a salt rock FCC structure, and the crystallite size tended to increase with the increase of pressure. The XPS analysis allowed to demonstrate the presence of the doublets corresponding to metallic aluminum. Titanium was also found as well as the presence of oxygen as an oxidizing element of the coating. Regarding to the morphological analysis, it was observed an increase of the roughness when the coatings were grown, compared with the stainless substrates; moreover, no significant influence of the small pressure variation was observed on properties as hardness, coefficient of friction, and critical load.
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Kiljunen-Siirola, R., and A. Pajunen. "Production of container-grown nursery plants on capillary sand beds." Agricultural and Food Science 60, no. 7 (December 1, 1988): 661–71. http://dx.doi.org/10.23986/afsci.72335.
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This study investigated the effect of growth medium on the growth of nursery plants in a capillary irrigation system, the use and amount of slow-release fertilizer for the fertilization of container-grown nursery plants, and the need fora base dressing with a slow release fertilizer. Also investigated were the effect of different concentrations of alkyl aryl trimethyl ammonium chloride solution (Gloquat C) in preventing rooting through, and the use of a watering control device based on measuring radiation energy in field conditions. The experiments on growth medium revealed that all the growth media included in the experiment, i.e. sphagnum peat, peat/rock wool mixture (1 : 1),or peat/sand mixture (3 : 1), can be used for container-grown nursery plants if a base dressing is used with Nutricote(70), a slow-release fertilizer. The effect of slow-release fertilizer was better in peat mixtures, and this effect was especially clear when no base dressing was used. The use of slow-release fertilizer proved to be a good fertilization method in a capillary irrigation system. The fertilizing effect of Nutricote (70) given in the spring lasted until early June of the following year. Nutricote(70) was found to need a base fertilizer dressing. Abase dressing of 1.2 kg/m3 of a compound fertilizer (Turpeen Y-lannos; N 11 % P 10.5 %, K 18.3 %) with 1.5 kg/m3 of slow release fertilizer proved to be a suitable fertilization method for ornamental woody nursery plants in a capillary irrigation system. The tallest plants were obtained with a base dressing that was mixed with 3 kg/m3 of the slow-release fertilizer. Plants thus fertilized were, however, considered to be too large for transport and handling. The problem of a secondary root ball under the pot in sand beds was prevented by spreading 15 ml/m2 of Gloquat C on the sand surface. The capillary irrigation system and the automatic irrigation control worked well in experiments carried out under practical conditions. The potted nursery plants were kept evenly moist, and the plants grew to market size in one growing season.
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Trigunasih, Ni Made, and I. Nyoman Dibia. "AGROECOSYSTEMS OF LAND SUITABILITY IN SUB-DISTRICT OF SOUTH KUTA FOR COMMODITY DEVELOPMENT HORTIKULTURA FRUITS IN BADUNG DISTRICT, BALI." International Journal of Biosciences and Biotechnology 6, no. 2 (August 16, 2019): 114. http://dx.doi.org/10.24843/ijbb.2019.v06.i02.p04.
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This study aims to: (1) to know the suitability of the land for the development of several fruit horticultural commodities in the Sub-district of South Kuta, (2) determine the suitability of land in agroecosystem and its limiting factors, (3) provide ecommendations for land management in the study area. The study used a field survey method with the determination of observation samples carried out in a stratified purposive sampling with land units as the strata. Land quality/characteristics as a determinant of land suitability observed include: annual mean temperature, water availability; rooting media; availability of oxygen; nutrient retention, CEC, BS, pH, and organic matter; nutrients available; erosion; flood hazard; land preparation. Land suitability assessment is done by matching the land quality with the growing requirements for the plants evaluated. The results showed that the actual land suitability for food crops of fruit horticulture (citrus, mango, starfruit, banana, sapodilla, grape, klengkeng, papaya, grain guava, guava, jackfruit, soursop, avocado, srikaya, breadfruit and pineapple) belonged according to conditional marginal suitable (S3), until not appropriate (N) with the quality of the land as a limiting factor are: rooting media (effective depth of soil); land preparation (surface rocks and rock outcrops); erosion hazard; and nutrient availability (especially N-total and P-available). The assumption is that some land quality/characteristics that are as limiting factors can be improved, then the suitability of the potential land is quite suitable (S2) to marginal suitable (S3) with the quality/characteristics of the land as a limiting are: availability of water (long dry months), rooting media (effective depth), land preparation (surface rocks, rock outcrops), and nutrient retention (rather high soil pH). Increased land productivity in the study area can be done by improving land management by providing inputs such as: the addition of sufficient organic material, adition of fertilizer containing elements of N (ZA), and fertilizer containing elements of Potasium (SP36), taking conservation measures in the form of making terraces on sloping lands.
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Zaheer, Jawad, Qazi Najam-Us-Saqib, Misba Qamar, and Muhammad Akram. "In vitro (anti-alpha-glucosidase) activity and in vivo anti-diabetic activity of Androsace foliosa (common rock jasmine) in alloxan-induced diabetic BALB/c mice." European Journal of Inflammation 17 (January 2019): 205873921985742. http://dx.doi.org/10.1177/2058739219857429.
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Androsace foliosa syn. Androsace sarmentosa (botanical name of common rock jasmine) ( Primulaceae) is used in the treatment various disorders. The aim of this study is to evaluate in vitro anti-diabetic activity of crude methanolic extract of leaves and roots of A. foliosa by anti -alpha-glucosidase (α-Glc) and in vivo anti-diabetic activity of n-hexane fraction on alloxan-induced diabetic mice. Results of in vitro anti-diabetic (α-Glc) activity showed that n-hexane leaves fraction was most potent among all the fractions and showed IC50 (half maximal inhibitory concentration) value of 64.91 ± 0.16 µg and % inhibition of 89.35 ± 0.45, comparable to that of standard acarbose. In vivo n-hexane leaves fraction decreases blood glucose level and reduces body weight similar to that of standard drug glibenclamide. Based on the conclusion of both in vitro and in vivo activities, it can be accomplished that the plant A. foliosa acquires noteworthy anti-diabetic action and can be used to treat diabetes mellitus type II and to reduce body weight.
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King, Chris, Peter Kennett, and Elizabeth Devon. "Earthlearningidea: promoting deep questioning in lab and field." Terrae Didatica 14, no. 3 (September 28, 2018): 263–70. http://dx.doi.org/10.20396/td.v14i3.8653524.
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The Earthlearningidea website (www.earthlearningidea.com) launched in 2008 as part of the International Year of Planet Earth, publishes geoscience teaching ideas online as free-to-download pdfs. The website publishes a new idea every two weeks, so that more than 280 ideas have now appeared in English. Translators around the world kindly offered to translate the ideas into their own languages and more than 900 translations can now be accessed through the website. So far, nearly 3.5 million pdfs of the ideas have been downloaded across the world at a mean rate of more than 40,000 per month. The activi-ties have been used in teacher training in a number of countries, as recorded in the Earthlearningidea blog at http://earthlearningidea.blogspot.co.uk/. An analysis was published in 2016 of the different approaches used in the ideas pub-lished to that date. The analysis (n=250) showed that some ideas covered several of categories, and that overall coverage was: basic skills, 4%; observation, 16%; illustration 39%; investigation, 10%; diagrammatic models, 5%; physical models, 44%; thought experiments, 13% and unattributed, 12%. The thought experiments were deliberately focused on promoting deep un-derstanding through deep questioning in the lab and field. They include examples such as: ‘Earthquake through the window - what would you see, what would you feel?: asking pupils to picture for themselves what an earthquake through the window might look like’; ‘Sand on a sill: What will happen to a sand grain left on a window sill? – a rock cycle discussion’; ‘From clay balls to the structure of the Earth: a discussion of how physics can be used to probe Earth’s structure’; ‘Is there life in this soil sample? - questions to consolidate pupil understanding of soil-formation’; ‘The ‘What could hurt you here?’ ap-proach to field safety - teaching how to keep safe during fieldwork and other outdoor activities’; ‘What was it like to be there – in the rocky world? – bringing the formation of solid rock to life by imagining yourself there when it formed’; ‘Fieldwork: the ‘All powerful’ strategy – discussing geological histories in imaginative ways’ and ‘Fieldwork – interactive re-creation: ac-tivities using simple transportable apparatus to simulate features in the field’. Two of these Earthlearningidea activities are given in full, as examples of the Earthlearningidea approach in general, and the use of the ‘thought experiment’ ideas to gen-erate deep questioning and discussion in the lab and field, in particular.
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Utama, Ditamulia Slamet. "EVALUASI KESESUAIAN LAHAN TANAMAN PADI DAN BUAH-BUAHAN BERDASARKAN AGROEKOSISTEM DAN AGROEKONOMI DI DESA TANGGUWISIA DAN JOANYAR, KECAMATAN SERIRIT, KABUPATEN BULELENG, BALI." AGRICA 4, no. 1 (July 22, 2020): 82–96. http://dx.doi.org/10.37478/agr.v4i1.469.
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Agroecosystem and agroeconomic evaluation of land suitability for fruit and rice agriculture in Tangguwisia and Joanyar Village, Seririt District, Bali, Indonesia. This research was conducted in the Tangguwisia Village and Joanyar Village, Seririt District, Buleleng Regency, Bali, from January to April 2011. The goals of this study were to determine the suitability of land-based agroecosystems and agroeconomies for rice and fruit crops from an agroeconomic perspective and at the level of the subclass, to understand the characteristics and qualities of the land that allow for increased production of rice and fruits and to create thematic maps of land suitability for rice plant, banana, mango, rambutan, durian, and grape in the agriculturally viable area. Land suitability was evaluated in several stages. First, a preparation phase was followed by the classification of land units (S1, S2, S3 and N). Agroecosystems with extremely agriculturally suitable soil were labelled (S1), systems with reasonably suitable soil were labelled (S2), systems with marginally suitable soil were labelled (S3) and systems considered completely unsuitable for agriculture were labelled (N). Sample points were determined and field surveys were conducted followed by soil analysis and data collection. This data was used to determine agroeconomic and agroecosystem suitability, and to make land-use planning recommendations, all of which culminated in the production of a land suitability map. Existing rice agroecosystems S2, S3 and N were found to be suitable for rice, with slope and texture as limiting factors. Land sections S3 and N were found to be suitable for bananas, with rainfall, dry season length, texture, slope and erosion as limiting factors. Land sections S2, S3 and N were found to be suitable for mango agriculture with rainfall, texture, slope, surface rock, and erosion as limiting, banana, mango, rambutan, and durian). S1 was found to be most suitable to the growing of grapes factors. Rambutan and durian cultivation was found to be best suited to the conditions in land unit N, with rainfall and texture as limiting factors. Vines were found to be suitable in section S2, S3 and N, with dry season length, texture, drainage, slope and erosion as limiting factors. Land units S1 and S2 were found to be suitable to the widest variety of crops (rice).
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Lomas, L. W., J. W. Slocombe, and G. A. Milliken. "Storage Losses From Large Round Bales of Alfalfa, Tall Fescue, and Big Bluestem Hay." Applied Engineering in Agriculture 34, no. 2 (2018): 445–54. http://dx.doi.org/10.13031/aea.12681.
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Abstract. An 18-month study was conducted to evaluate the effects of storage location, wrapping material, storage surface, and cover on losses of dry matter (DM) and nutrients from large round hay bales. The study consisted of (n=40 bales each) of alfalfa ( L.), tall fescue [ (Schreb.) S.J. Darbyshire], and big bluestem () hay. Bales were wrapped with plastic twine or plastic net and stored indoors or outdoors. Bales stored outdoors were placed on soil or crushed rock with either no cover or thetophalf covered by a tarp. Bales were individually weighed and sampled at harvest and again after 6, 12, and 18 months of storage. Samples were analyzed for DM, crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF), and total digestible nutrient (TDN) values were calculated. After 18 months of storage, alfalfa and fescue hay stored inside had a greater (P<0.05) DM concentration and smaller (P<0.05) DM loss than hay stored outside. Storage location and/or treatment had no effect (P>0.05) on DM loss from big bluestem hay. Across all hay types, net-wrapped bales stored outside had numerically smaller DM loss than twine-wrapped bales; however, differences in most cases were not significant (P>0.05). Alfalfa bales stored outside on crushed rock had smaller (P<0.05) DM loss than those stored on soil 18 months after harvest. Storage surface had little or no effect on DM loss from tall fescue and big bluestem hay at any sampling time. Covering the top half of the bale consistently reduced DM loss from alfalfa and tall fescue hay stored outside, but had no effect (P>0.05) on storage losses from big bluestem hay. The effects of storage treatment on CP, NDF, ADF, and TDN were small and in most cases were not significant (P>0.05). The results of this study indicate that alfalfa hay should either be stored inside, or outside on rock with the top-half covered to minimize DM loss. Fescue and big bluestem hay can be stored outside with minimal losses using any of the storage treatments evaluated provided bales are stored on a well-drained surface. Keywords: Alfalfa, Big bluestem, Dry matter, Hay, Net-wrap, Quality, Round bales, Storage losses, Tall fescue.
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Bonjack, Stephanie. "Does the Noise in My Head Bother You? A Rock ‘N’ Roll Memoirby Steven Tyler with David DaltonBetween a Heart and a Rock Place: A Memoirby Pat Benatar with Patsi Bale CoxRat Girl: A Memoirby Kristin HershLifeby Keith Richards with James Fox." Music Reference Services Quarterly 15, no. 4 (October 2012): 281–85. http://dx.doi.org/10.1080/10588167.2012.728109.
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Houser, Natalie E., Jane Cawley, Angela Kolen, Daniel Rainham, Laurene Rehman, Joan Turner, Sara Kirk, and Michelle Stone. "A Loose Parts Randomized Controlled Trial to Promote Active Outdoor Play in Preschool-aged Children: Physical Literacy in the Early Years (PLEY) Project." Methods and Protocols 2, no. 2 (April 4, 2019): 27. http://dx.doi.org/10.3390/mps2020027.
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BACKGROUND: The Physical Literacy in the Early Years (PLEY) intervention is a randomized mixed-methods controlled trial focused on embedding loose parts materials into the outdoor play spaces of regulated child care centres across Nova Scotia. The aim is to evaluate the efficacy of the PLEY intervention versus standard regulated childcare practice in influencing thoughts and behaviors of children, parents, and educators. METHODS: Participating early child care centres (n = 19) were randomly assigned to intervention or control sites. Intervention sites received loose parts kits at the beginning of the project while control sites received kits upon project completion. The kits included items such as rocks, tree cookies, balls, wood planks, tubes, tires, ropes, and pulleys. Children (n = 183 at baseline) had their physical activity (accelerometers) and movement skills (TGMD-3 and PGMQ) measured before and after the intervention. All centres provided responses to environmental surveys (Go NAP SACC and Site Context Questionnaire), and educators in intervention sites participated in focus group and photovoice sessions. Educators were also provided with a full day professional development opportunity (plus ongoing mentoring) focused on physical activity, physical literacy, outdoor play, risk-taking, and loose parts. Parents participated in an interview addressing active outdoor play, physical literacy, and attitudes towards risk taking during play. DISCUSSION: This study will provide a better understanding of how integrating loose parts materials into outdoor play spaces impacts children’s health, and the impact on educator and parent attitudes, beliefs, and understanding around physical literacy, active outdoor play and risk-taking during play.
Books on the topic "Rock 'N Ball"
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Tom, Badgett, ed. Ultimate unauthorized Nintendo game strategies: Winning Strategies for 100 Top Games. New York: Bantam Books, 1989.
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Arnold, J. Douglas. Awesome Super Nintendo Secrets. Maui, USA: Sandwich Islands Publishing, 1992.
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Inc, Game Counselor. Game Counselor's Answer Book for Nintendo Players. Redmond, USA: Microsoft Pr, 1991.
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Tom, Badgett, ed. Official Sega Genesis and Game Gear strategies, 2ND Edition. Toronto: Bantam Books, 1991.
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Sandler, Corey. Official Sega Genesis and Game Gear strategies, 3RD Edition. New York: Bantam Books, 1992.
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Inc, Game Counsellor, ed. The Game Counsellor's answer book for Nintendo Game players: Hundredsof questions -and answers - about more than 250 popular Nintendo Games. Redmond, Washington: Microsoft Press, 1991.
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Awesome Super Nintendo Secrets II. Bournermouth, U.K.: Paragon Publishing, Limited, 1993.
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Official Sega Genesis and Game Gear Strategies, '94 Edition. New York, NY: Random House, Electronic Publishing, 1993.
Find full textConference papers on the topic "Rock 'N Ball"
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Griffin, J., D. J. Rojas, A. Al Shmakhy, and P. Scranton. "Application of Interventionless Single Point Entry Technology to Improve Proppant Placement Control and Well Production." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205865-ms.
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Abstract The hydraulic fracture treatment (HFT) and its effectiveness to enhance wellbore drainage directly correlate with each well’s overall production performance and underlining economics. This paper will discuss the potential of ultra high stage count Single Point Entry (SPE) sleeves and their ability to increase control over proppant placement and isolation during the HFT as a method for optimizing well performance, economics, and reduce non-uniformity between treatments and wells. To address the limitations of current completion methods, full ID single point entry systems have been developed for open hole and cemented applications. These systems provide unlimited frac stage count with lower frac tortuosity, provide increased control over proppant placement and well production, reduce or eliminate over- flush and formation damage, and achieve higher efficiency during and after frac stimulation than previous conventional plug-and-perf (PnP) and sleeve systems, thereby reducing costs. While the ball-and-seat completion technique revolutionized the efficiency of multi-stage single point entry fracturing, its vast array of limitations (primarily ID restrictions), limited stage count, and compatibility with cemented liners quickly sidelined it in place of PnP. PnP offers increased surface area contact through additional entry points compared to sleeve systems of the past and remains the accepted method for achieving zonal isolation and initiation during stimulation. However, the time intensive operations of PnP present challenges in maintaining efficiencies due to variability in wireline during deployment and coiled tubing during millouts. The increase in number of clusters per stage and number of stages per well achieved with PnP often results in higher stimulated rock volumes (SRV) however, due to the number of multiple clusters open simultaneously, this method gained a "pump-n-pray" reputation due to the uncertainty of cluster efficiency and its unpredictability. The lack of cluster control over the years has created a series of challenges in terms of parent-child well relationships and spacing, economical asset development, and loss of potential production. With over 4,000 stages fracture stimulated across US, Canada, and Asia, some wells containing 220 individual stages, this paper will address the differences in production in terms of bbl of oil equivalent (BOE) for direct and indirect offsets in trials, compare capital efficiency with spud to put on production (POP) timelines, demonstrate economical completion optimization for lower commodity pricing of oil, and carbon intensity reduction measures to lower greenhouse gas emissions.