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Articoli di riviste sul tema "Implements"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 luglio 2024

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1

Kravchenko, Ruslan, Maksat Amantayev, Yevgeniy Zolotukhin e Tursynai Tolemis. "STUDY OF FURROW FORMATION BY THE POWER DRIVEN ROTARY TILLAGE IMPLEMENT FOR THE SURFACE TILLAGE OF SOIL". 3i intellect idea innovation - интеллект идея инновация 3 (2023): 71–77. http://dx.doi.org/10.52269/22266070_2023_3_71.

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For the surface tillage, it is common to utilize machines and tools, and their tillage implements are set in motion through contact with the soil and by the tractor's PTO. The furrow produced by the rotating tillage implements is characterized by an uneven bottom that matches the furrow length and aligns with the direction of the movement of the machine-tractor aggregates. However, an analysis of research suggests that this scenario does not fully capture the process of furrow formation by the cutting blade of the concerned tillage implement powered by the tractor's PTO. For the reasons outlined above, determining the tillage implement parameters to achieve the desired quality of surface soil tillage is quite challenging. This article, therefore, delves into the process of furrow formation using the power driven tillage implement.The objective of this study is to develop a methodology for determining the parameters of the furrow formed by the power driven tillage implement’s cutting blade. Experiments were conducted in a soil box filled with sandy soil, considering approach angles ranging from 30 to 90° and kinematic parameters varying between 0.8 and 2.2. The findings reveal that the cutting blade of the rotating implement, designed in an elliptical fashion, generates a furrow that takes on a parallelogram shape when seen from above. At a small approach angle, the implement's cutting blade produces a short, narrow furrow that deviates from the implement's path and remains within the implement's working width.

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2

Turner, Robert. "Pygmy Implements". Mankind 1, n. 5 (10 febbraio 2009): 110–12. http://dx.doi.org/10.1111/j.1835-9310.1932.tb00889.x.

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3

HACHIYA, Machiko. "WHO IMPLEMENTS INTEGRATION?" EU Studies in Japan 2000, n. 20 (2000): 72–90. http://dx.doi.org/10.5135/eusj1997.2000.72.

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4

Meston, A. L. "Tasmanian Stone Implements." Mankind 2, n. 4 (10 febbraio 2009): 80–82. http://dx.doi.org/10.1111/j.1835-9310.1937.tb00940.x.

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5

Dongre, Saurabh S., Rohit R. Dabir, Sachine P. Topre, Shubham A. Kantode e Shubham G. Gedam. "Fabrication of Multi Spanner Fastener Mechanism". International Journal for Research in Applied Science and Engineering Technology 10, n. 4 (30 aprile 2022): 16–17. http://dx.doi.org/10.22214/ijraset.2022.41152.

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Abstract: The fabrication of a two-way multi-nut tightener and remover is an incipient innovation concept. The main aim of our project is to fabricate the two-way implement which is the cumulation of two implements four nut remover and five nut remover. Nowadays most cars have five nuts and four nut wheels it is arduous to carry two implements and costly to buy both the implement. From our project, we can abbreviate the carrying load of two implements into one implement and withal the cost of buying two implements by buying the sing implement. It minimizes the manpower and equal torque is applied to the entire nut in the car wheel. It can be prosperously utilized as a standard implement provided with an incipient conveyance. Additionally, it can be utilized in the assembly line of automobiles, workshops, and accommodation stations. Keywords: Ball Bearing, Gears, Spanner Socket, Base Plate, Shafts.

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6

Singh, Harbhinder, e Munish Mehta. "Evaluation and Analysis of Tractor Driver’s Seat Vibrations without Implements and with Implements during Tillage Process". YMER Digital 20, n. 11 (25 novembre 2021): 403–9. http://dx.doi.org/10.37896/ymer20.11/35.

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In day to day operations tractor has to move with tillage implements and without tillage implements. In this work emphasis has been given to compare the effect of vibrations on driver’s seat of tractor while working with implements during tillage and while working without implements. The experiment was conducted in the fields of Punjab (India). During the experiment, first time the tractor was made to move without implements and second time tractor was moving with chisel plough (tillage implement). Both times real time vibration data of driver’s seat was collected with three-axis accelerometer and it was observed that when tractor was moving without implements the vibration amplitude was highest in vertical direction Z as compared to transverse direction Y and horizontal direction X. But when the tractor was moving in the fields with tillage implement (chisel plough) the vibration amplitude was high in transverse direction Y relative to horizontal direction X and vertical direction Z.

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7

Dahab, Mohamed Hassan, Abdalla N. O. Kheiry e Mohamed Hamid Numan. "Developed and Field Performance Evaluation of a Combined Cultivator". Journal of Agronomy Research 4, n. 2 (22 ottobre 2022): 12–19. http://dx.doi.org/10.14302/issn.2639-3166.jar-21-3872.

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Sugar cane production requires a number of operations to be carried out in the field through number of implements and machines. Therefore, time consuming and required large amount of energy. A combined field cultivator was designed in Kenana agricultural implements factory (KAIF) to carry out at one time multi operations (cultivation, furrow-reforming and Fertilizer placement). This is to increase field productivity, reduce farm power and lower operation time and cost. The combined implement was evaluated in Kenana cultivation fields and compared with three individual implements, rigid tine cultivator, furrow-reformer and fertilizer applicator. The measured parameters were drawbar pull, power requirements, field capacity, fuel consumption and total time in the field. The results showed highly significant differences at 1% level between the different implements for the field capacity, fuel consumption and significant differences at 5% for the drawbar pull. A power requirement in (kW) for the combined cultivator was 77% of those individual implements. Total time per feddan to accomplish the required operations by the combined cultivator was 57% of that required by the individual implements. Fuel consumption was reduced to 57% when combined implement was used compared to that consumed by individual implements. It was concluded that the combined cultivator was effective in increasing field productivity and reducing power and cost of operation.

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8

Varani, Massimiliano, Michele Mattetti e Giovanni Molari. "Performance Evaluation of Electrically Driven Agricultural Implements Powered by an External Generator". Agronomy 11, n. 8 (21 luglio 2021): 1447. http://dx.doi.org/10.3390/agronomy11081447.

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In the last decade, many studies have been conducted on tractor and agricultural machinery electrification. In particular, the electrification of power take-off (PTO)-powered implements could support many benefits, such as improved comfort and safety during implement connection, less noisiness, accurate control of the implement rotational speed, and fuel consumption reduction. However, commercially available tractors do not generate sufficient electric power to run electrified implements. A solution to this issue is powering eventual electrified implements with an external electric generator powered by the PTO and mounted with the front three-point linkage. This study aimed to evaluate the potential benefits of using this combination with respect to PTO powered implements. The types of implements analyzed in detail in this study were a sprayer and a mulcher. Field tests were performed acquiring performance, operational, and environmental parameters. Results show that on the electrified implements, the absence of the cardan shaft and hydraulic remotes shortened the time required for the hitching phase and reduced the in-work noisiness. Field tests demonstrated that the electrified implements permitted an improvement of the fuel consumption per hectare, up to 33.3% and 29.8% lower than their PTO-powered homologue for the sprayer and the mulcher, respectively.

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9

Bernstein, Carol A. "APA Implements New Structure". Psychiatric News 45, n. 18 (17 settembre 2010): 3. http://dx.doi.org/10.1176/pn.45.18.psychnews_45_18_008.

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10

Turner, Robert. "Notes on Stone Implements". Mankind 1, n. 9 (10 febbraio 2009): 227–29. http://dx.doi.org/10.1111/j.1835-9310.1934.tb00075.x.

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11

Helton, Monica L., e William F. Balistreri. "The Journal implements CrossMark". Journal of Pediatrics 165, n. 2 (agosto 2014): 217–19. http://dx.doi.org/10.1016/j.jpeds.2014.06.020.

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12

BAUM, RUDY. "ACS IMPLEMENTS COST SAVINGS". Chemical & Engineering News 86, n. 50 (15 dicembre 2008): 9. http://dx.doi.org/10.1021/cen-v086n050.p009.

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13

Carballo, David M. "IMPLEMENTS OF STATE POWER". Ancient Mesoamerica 18, n. 1 (2007): 173–90. http://dx.doi.org/10.1017/s0956536107000144.

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AbstractThe expansionary strategies of Teotihuacano political leaders involved the large-scale manufacture of weaponry and the production of ceremonial items representative of a coherent suite of symbols expressing themes of warfare and sacrifice. Recent excavations at the Moon Pyramid demonstrate that such production activities were undertaken next to the monument, where obsidian was reduced into dart points and eccentrics linked to militarism and sacrificial practices in the art and archaeology of the city. These craft production activities were likely directly administered by state functionaries and formed part of the physical and ideational bases of state political authority. The finished products served as means of direct military coercion and symbolic reification of state authority, materialized through the militaristic offering complexes within the major temples of the city. This study presents a detailed technological analysis of the production activities and contextualizes their social significance by examining their symbolic manipulation in the art and sacrificial offerings of Teotihuacán.

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14

Szuromi, P. "Implanted Atoms as Implements". Science 340, n. 6130 (18 aprile 2013): 250–51. http://dx.doi.org/10.1126/science.340.6130.250-d.

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15

Klotz, Laurence H. "CUAJ implements early releases". Canadian Urological Association Journal 5, n. 1 (2 aprile 2013): 7. http://dx.doi.org/10.5489/cuaj.549.

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16

McK. Clough, T. H., e A. R. Woolley. "Petrography and stone implements". World Archaeology 17, n. 1 (giugno 1985): 90–100. http://dx.doi.org/10.1080/00438243.1985.9979952.

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17

Scharfenaker, Mark A. "USEPA Implements Stormwater Regulations". Journal - American Water Works Association 84, n. 2 (febbraio 1992): 18–104. http://dx.doi.org/10.1002/j.1551-8833.1992.tb07295.x.

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18

Zhang, Lanlan, Yanling Pi, Hua Zhu, Cheng Shen, Jian Zhang e Yin Wu. "Motor experience with a sport-specific implement affects motor imagery". PeerJ 6 (27 aprile 2018): e4687. http://dx.doi.org/10.7717/peerj.4687.

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The present study tested whether sport-specific implements facilitate motor imagery, whereas nonspecific implements disrupt motor imagery. We asked a group of basketball players (experts) and a group of healthy controls (novices) to physically perform (motor execution) and mentally simulate (motor imagery) basketball throws. Subjects produced motor imagery when they were holding a basketball, a volleyball, or nothing. Motor imagery performance was measured by temporal congruence, which is the correspondence between imagery and execution times estimated as (imagery time minus execution time) divided by (imagery time plus execution time), as well as the vividness of motor imagery. Results showed that experts produced greater temporal congruence and vividness of kinesthetic imagery while holding a basketball compared to when they were holding nothing, suggesting a facilitation effect from sport-specific implements. In contrast, experts produced lower temporal congruence and vividness of kinesthetic imagery while holding a volleyball compared to when they were holding nothing, suggesting the interference effect of nonspecific implements. Furthermore, we found a negative correlation between temporal congruence and the vividness of kinesthetic imagery in experts while holding a basketball. On the contrary, the implement manipulation did not modulate the temporal congruence of novices. Our findings suggest that motor representation in experts is built on motor experience associated with specific-implement use and thus was subjected to modulation of the implement held. We conclude that sport-specific implements facilitate motor imagery, whereas nonspecific implements could disrupt motor representation in experts.

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19

Sarkar, Pranay. "Active-passive and passive-passive configurations of combined tillage implements for improved tillage and tractive performance: A review". Spanish Journal of Agricultural Research 19, n. 4 (dicembre 2021): e02R01-e02R01. http://dx.doi.org/10.5424/sjar/2021194-18387.

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Proper selection of energy-efficient agricultural machinery helps to reduce drudgery, increase cropping intensity and reduce time required for field preparation. With conventional tillage implements, multiple passes are required to obtain desired seedbed which increase soil compaction due to repeated movement of tractor in field. With combined tillage implements two or more tillage implements are combined to reduce time and fuel energy required for seedbed preparation. In this paper, various researches on active-passive and passive-passive configurations of combined tillage implements have been discussed along with their working principles. It was found that these were associated with less draft, specific energy, and tire slippage compared to conventional implements which provides a sound basis for using them with suitable engine power to improve the power utilization of tractors. Hence, use of these implements could help to reduce soil compaction, labour, fuel cost as well as save time in preparing seedbed. More analytical studies and classical approaches are needed to predict energy requirements of these implements from the knowledge of individual energy requirements of conventional implements to help in proper matching of tractor-implement and also to develop decision support systems. Considering their promising outcomes, they will emerge as effective tools to improve agricultural mechanization.

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20

Čepický, Jáchym. "PyWPS 2.0.0: The presence and the future". Geoinformatics FCE CTU 2 (19 dicembre 2007): 61–64. http://dx.doi.org/10.14311/gi.2.8.

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This paper presents current status of PyWPS program, which implements OGC Web Processing Service standard. PyWPS 0.2.0, which was released only recently, implements OGC WPS 0.4.0. Nowadays, OGC is preparing the WPS 1.0.0 standard, with slightly different characteristics. Next versions of PyWPS should implement this version too.

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21

Gebresenbet, Girma. "Optimization of Animal Drawn Tillage Implements: Part I, Performance of a Curved Tillage Implement". Journal of Agricultural Engineering Research 62, n. 3 (novembre 1995): 173–84. http://dx.doi.org/10.1006/jaer.1995.1075.

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22

Cárdenas Valdez, José Ricardo, Mauro Berber Palafox, Christian Gontrand e José Cruz Núñez Pérez. "Performance Evaluation of a Memory-Polynomial Model for Microwave Power Amplifiers". Programación matemática y software 4, n. 1 (15 giugno 2012): 13–23. http://dx.doi.org/10.30973/progmat/2012.4.1/2.

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This paper is focused on a model for the power amplifier considering the memory effects in short terms, this work was developed for periodic signals through Matlab software and was implemented in Simulink. This model for the power amplifier implements a Memory-Polynomial model. Memory-polynomials prove to be both accurate and easy to implement and was compared with Ghorbani and Saleh quasi- memoryless models to demonstrate its precision.

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23

Wang, Xiaolei, Chaoqun Sun e Jiali Liu. "Social Responsibility Decision-Making of Universities in Stackelberg Competition". Discrete Dynamics in Nature and Society 2021 (9 agosto 2021): 1–17. http://dx.doi.org/10.1155/2021/7686753.

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This paper establishes a Stackelberg competition model of two universities considering social responsibility (SR) and market sensitivity (MS) and examines the equilibrium results of four different scenarios: only the leader implements SR; only the follower implements SR; both the leader and the follower implement SR; neither the leader nor the follower implements SR. Then, a comparative analysis is carried out on the influence of MS and SR level. The results show that the influence of MS depends on SR implementation instead of competitive position. If MS is sufficiently high, two universities have the motive to implement more SR; under different competition scenarios, universities make different SR decisions, but the leader and the government make the same decisions on the optimal SR level. Therefore, the government could encourage the leader to take SR first.

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24

Adams, T., e S. Jeffreson. "Australia implements voluntary folate fortification." American Journal of Public Health 86, n. 4 (aprile 1996): 593–94. http://dx.doi.org/10.2105/ajph.86.4.593.

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25

Kida, H. N. "Ubungo Farm Implements Manufacturing Company". Tanzania Journal of Engineering and Technology 2, n. 1 (31 dicembre 1985): 69–70. http://dx.doi.org/10.52339/tjet.v2i1.33.

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26

Philib, Séamas Mac, Jonathan Bell e Mervyn Watson. "Irish Farming: Implements and Techniques". Béaloideas 56 (1988): 243. http://dx.doi.org/10.2307/20522323.

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27

Illman, J. "Britain Implements Nationwide Cancer Standards". JNCI Journal of the National Cancer Institute 93, n. 7 (4 aprile 2001): 496–97. http://dx.doi.org/10.1093/jnci/93.7.496.

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28

Campbell, T. D. "The Stone Implements of Australia." Mankind 3, n. 11 (10 febbraio 2009): 343–44. http://dx.doi.org/10.1111/j.1835-9310.1947.tb00136.x.

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29

Bobokhyan, A. "Trading implements in early Troy". Anatolian Studies 59 (dicembre 2009): 19–50. http://dx.doi.org/10.1017/s0066154600000867.

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AbstractThe traditional view of Troy as a kind of central site presupposes balance weights and other artefacts that attest weighing procedures among the excavated material. Indeed, already in the works of Homer it is possible to find references to premonetary aspects (for example, the gold standard τάλαντον). The main purpose of this investigation is to provide an archaeological view on the issue of trading implements and their significance in early Troy. The principal group of objects defined as balance weights was unearthed during the excavations of Heinrich Schliemann. By contrast, very little data derive from Wilhelm Dörpfeld's activities at the site. Balance weights are known also from the recent excavations of Manfred Korfmann. In two previous reports I presented the state of balance weights found in the Schliemann and Korfmann excavations (Bobokhyan 2006; 2008a). The aim of this article is to consider the main stages of the investigation of balance weights, with special reference to the excavations of Carl Blegen in Troy. The main problem related to the study of the Trojan balance weights is the lack of knowledge about the archaeological contexts for many of the finds. A considerable number of these implements has been lost or is inaccessible. However, their compilation assists in understanding the abstract way-of-thinking and value perception of the population of ancient Troy. The actual number of balance weights from Troy can be estimated at ca 100. The main period of their appearance is during Troy II–V, less in Troy VI. The principal forms represented are ellipsoid (‘sphendonoid’) and domed, and the materials used most for the weights are haematite as well as granite, basalt, marble and limestone. New research has revealed the existence of multiple weighing systems in Bronze Age Troy, a situation that was typical for mercantile centres such as Tepe Sialk, Susa or Kanes. The investigation of the Trojan balance weights and their contexts hints at the existence of Aegean and eastern Mediterranean, more precisely northern Syrian, directions of contacts.

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FRIEDEN, JOYCE. "Calif. Implements Psychologist Admitting Privileges". Clinical Psychiatry News 33, n. 6 (giugno 2005): 77. http://dx.doi.org/10.1016/s0270-6644(05)70478-1.

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Radomskyi, Ivan, e Оlena Yakubenko. "Stone Implements from Ozaryntsi Settlement". Archaeology, n. 1 (24 marzo 2016): 97–104. http://dx.doi.org/10.15407/archaeologyua2016.01.097.

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Farrell, Kathleen. "CNS Implements Diabetes Clinical Project". Clinical Nurse Specialist 20, n. 2 (marzo 2006): 89. http://dx.doi.org/10.1097/00002800-200603000-00041.

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Perdok, U. D. "Vehicle and machinery design; Implements". Journal of Terramechanics 24, n. 2 (gennaio 1987): 141–52. http://dx.doi.org/10.1016/0022-4898(87)90004-8.

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Zhang, Zhenfang, Min Guo e Wei Yang. "Analysis of NEV Power Battery Recycling under Different Government Reward-Penalty Mechanisms". Sustainability 14, n. 17 (24 agosto 2022): 10538. http://dx.doi.org/10.3390/su141710538.

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As a valuable reuse resource, the efficient recycling of retired power batteries is of great significance to the sustainable development of the new energy vehicle (NEV) industry. With the arrival of the NEV power battery decommissioning tide in China, how the government promotes the relevant responsible subject to improve the recovery rate is becoming urgent. Current studies have not considered the policy role of a government reward-penalty mechanism (RPM) in power battery recycling. Therefore, based on the extended producer responsibility (EPR) system, this paper constructs three models under the government RPM: the government implements the RPM only for vehicle enterprises; the government implements the RPM only for power battery manufacturers, and the government implements the RPM for both vehicle enterprises and power battery manufacturers. The results of the study show that: on the one hand, when the government implements the RPM only for vehicle enterprises, the recovery rate is the highest, and the total profit of the closed-loop supply chain is also the highest. Therefore, it is suggested that the government should set a target recycling rate according to the actual situation of each region and implement the RPM only for vehicle enterprises. On the other hand: when the government implements the RPM only for vehicle enterprises, they can implement the strategy of small profit and quick turnover to improve the recovery rate and their own profits. When the government implements the RPM only for power battery manufacturers, they should adopt the strategy of reducing the wholesale price of power battery to increase their profits by increasing sales. When the government implements the RPM for both vehicle enterprises and power battery manufacturers, if the vehicle enterprises share a large responsibility, all members of the closed-loop supply chain can benefit from the RPM.

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Sun, Fang Hong, Y. Wang, Zhi Ming Zhang e Ming Chen. "Fabrication and Application of Diamond-Coated Bearing Support Implements". Key Engineering Materials 315-316 (luglio 2006): 210–14. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.210.

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The bearing support implement is the key component in the precision process of bearings. Diamond films are deposited on Co-cemented carbide bearing support implements using the acetone and hydrogen as the gas source by the bias–enhanced hot filament chemical vapor deposition (HFCVD) technique. Diamond-coated bearing support implements are fabricated and used in the precision grinding of bearings. The research results show that the appropriate pretreatment methods and CVD process can effectively control the morphology, chemical quality, surface roughness, and adhesion of diamond films. As compared with the cemented carbide bearing support implements, the diamond-coated bearing support implements have obviously better wear resistant properties and working performance. It is of great significance for improvement of the bearing processing quality and raising of the bearing processing level.

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Askari, M., M. H. Komarizade, A. M. Nikbakht, N. Nobakht e R. F. Teimourlou. "A novel three-point hitch dynamometer to measure the draft requirement of mounted implements". Research in Agricultural Engineering 57, No. 4 (14 dicembre 2011): 128–36. http://dx.doi.org/10.17221/16/2011-rae.

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An adjustable three-point hitch dynamometer with a draft capacity of 50 kN was developed to measure forces on the tractor and mounted implements. The design concept of the dynamometer was based on two linkage frames mounted between tractor links and the implement. The force sensing elements were comprised of a loadcell that was installed between the frames. The system provides variable width and height of the dynamometer links to satisfy a wide range of implement dimensions. All mounted tillage implements at categories II and III such as plows, cultivators and harrows were able to be tested by this dynamometer excluding mounted implements powered by power take-off (PTO). The dynamometer was calibrated and several field tests were conducted to measure the force required to pull a moldboard plow in a clay loam soil. The calibration showed a high degree of linearity between the draft requirements and the dynamometer outputs. Field tests showed that it was able to function effectively as intended without any mechanical problems.

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Hůla, J., R. Šindelář e P. Kovaříček. "Operational effects of implements on crop residues in soil tillage operations". Research in Agricultural Engineering 51, No. 4 (7 febbraio 2012): 119–24. http://dx.doi.org/10.17221/4913-rae.

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After spring barley harvest the operational effects of tillers and seed drill on spring barley residues were evaluated in two variants of cultural operations. Generally low values of soil surface coverage by crop residues after cultural operations were performed document that soil tillage and sowing did not comply with the criteria for conservation technologies – the coverage of soil surface by crop residues was lower by 30% after all cultural operations. After silage maize harvest we determined the weight of maize crop residues and coverage of soil surface by these residues after shallow tillage by a disk tiller when nine variants of the operating mode of the tiller were used. Obviously, the change in the operating mode of the tiller was able to influence the coverage of soil surface by maize residues. The evaluation of the operational effects of disc tiller on crop residues indicated some restraints of the use of this group of implements for conservation (erosion-control) technologies of soil tillage.

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Vyas, Neena, e Laxmi Devi. "Tools and Implements Used by Hill Farm Women in Himachal Pradesh". International Journal of Scientific Research 2, n. 4 (1 giugno 2012): 3–6. http://dx.doi.org/10.15373/22778179/apr2013/2.

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von Falkenhausen, Lothar. "Metal Agricultural Implements in Early China". West 86th: A Journal of Decorative Arts, Design History, and Material Culture 28, n. 2 (1 settembre 2021): 344–50. http://dx.doi.org/10.1086/721219.

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Topornin, N. "The European Court Implements New Rules". Russian Politics & Law 37, n. 5 (settembre 1999): 51–54. http://dx.doi.org/10.2753/rup1061-1940370551.

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Nashif, Ahid D., e Gopichand Koganti. "Vibration damping device for sporting implements". Journal of the Acoustical Society of America 103, n. 5 (1998): 2258. http://dx.doi.org/10.1121/1.422699.

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Langgut, Dafna, Naama Yahalom-Mack, Simcha Lev-Yadun, Eitan Kremer, Micka Ullman e Uri Davidovich. "On Chalcolithic maceheads and spinning implements". Antiquity 91, n. 357 (giugno 2017): 777–82. http://dx.doi.org/10.15184/aqy.2017.72.

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We are grateful to Ben-Yosefet al. (above) for their thorough critical evaluation of our recent paper. We identified a group of modified wooden shafts originating in two large complex caves with Late Chalcolithic (Ghassulian) burials in the Negev Desert (Israel) as the earliest Levantine wooden spinning implements (Langgutet al. 2016). Their detailed assessment culminated in the alternative hypothesis that the wooden objects functioned as sticks that carried metal maceheads during rituals. This raises several issues that merit serious consideration. Our response to Ben-Yosefet al.'s suggestions is divided into two sections, each concentrating on one of the two main technologies under discussion: spinning and metallurgy.

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Kulkarni, Madhura, Diane C. Shakes, Katie Guevel e Harold E. Smith. "SPE-44 Implements Sperm Cell Fate". PLoS Genetics 8, n. 4 (26 aprile 2012): e1002678. http://dx.doi.org/10.1371/journal.pgen.1002678.

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44

Bower, B. "Ancient Israeli Implements: Out of Africa". Science News 149, n. 12 (23 marzo 1996): 183. http://dx.doi.org/10.2307/3979766.

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45

Vadlamani, Sri Krishna, Tianyao Patrick Xiao e Eli Yablonovitch. "Physics successfully implements Lagrange multiplier optimization". Proceedings of the National Academy of Sciences 117, n. 43 (12 ottobre 2020): 26639–50. http://dx.doi.org/10.1073/pnas.2015192117.

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Optimization is a major part of human effort. While being mathematical, optimization is also built into physics. For example, physics has the Principle of Least Action; the Principle of Minimum Power Dissipation, also called Minimum Entropy Generation; and the Variational Principle. Physics also has Physical Annealing, which, of course, preceded computational Simulated Annealing. Physics has the Adiabatic Principle, which, in its quantum form, is called Quantum Annealing. Thus, physical machines can solve the mathematical problem of optimization, including constraints. Binary constraints can be built into the physical optimization. In that case, the machines are digital in the same sense that a flip–flop is digital. A wide variety of machines have had recent success at optimizing the Ising magnetic energy. We demonstrate in this paper that almost all those machines perform optimization according to the Principle of Minimum Power Dissipation as put forth by Onsager. Further, we show that this optimization is in fact equivalent to Lagrange multiplier optimization for constrained problems. We find that the physical gain coefficients that drive those systems actually play the role of the corresponding Lagrange multipliers.

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46

Marques da Silva, J. R., e J. M. C. N. Soares. "Description standards of primary tillage implements". Soil and Tillage Research 57, n. 3 (novembre 2000): 173–76. http://dx.doi.org/10.1016/s0167-1987(00)00157-4.

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McNamara, Sharon. "Board implements new meeting agenda strategy". AORN Journal 78, n. 4 (ottobre 2003): 561–62. http://dx.doi.org/10.1016/s0001-2092(06)60663-7.

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Bosch, Xavier. "UK implements embryo screening for cancer". Lancet Oncology 5, n. 12 (dicembre 2004): 704. http://dx.doi.org/10.1016/s1470-2045(04)01638-9.

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Dutta, Siddartha. "London medical school implements admission test". BMJ 329, Suppl S4 (1 ottobre 2004): 0410354a. http://dx.doi.org/10.1136/sbmj.0410354a.

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Schulz, K., H. Kaufer e B. Heilig. "The Deutsche Bundespost Telekom implements IN". IEEE Communications Magazine 30, n. 2 (febbraio 1992): 90–96. http://dx.doi.org/10.1109/35.127564.

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