Academic literature on the topic 'Tractor Supply Company'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Tractor Supply Company.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Tractor Supply Company"
1
Ryblov, Mikhail V., Denis A. Ukhanov, and Alexander P. Ukhanov. "Developing the Automatic System for the Multi-Point Fumigation of Air Charge in the Diesel Engine." Mordovia University Bulletin, no. 4 (December 28, 2018): 523–36. http://dx.doi.org/10.15507/0236-2910.028.201804.523-536.
Full textAbstract:
Introduction. The study deals with enhancement of an automotive diesel engine duty cycle through fumigating air charge by the certain dose (10−20 %) of hydrocarbon activator (alcohol, gasoline, kerosene, biodiesel, etc.). This is a relevant problem in engineering. In spite of its effectiveness, this method has not yet been widely applied to machinery. The existing mechanical devices for fumigating air charge do not provide the exact dosage of activator and its timely supply in a diesel engine at different operating modes. Materials and Methods. The solution for this problem may be the development of an automatic system for the multi-point fumigation of air charge. This device performs the injection of activator into the diesel engine intake manifold branches with the help of electromagnetic injectors managed by the electronic control unit. The system should provide the injectors operation by the algorithm for the cylinders firing order and calculate the injection duration for the adjusted activator dose. For the programming of the Electronic Control Unit, the injection duration of the exact activator dose was theoretically calculated. The algorithm of electromagnetic injectors operation was substantiated (for D-243 tractor diesel engine by the example). Results. To implement the multi-point fumigation of air charge, it was determined that depending on the activator dose and the engine speed and load mode, the cyclic dose of activator amounts may be from 1 mg per cycle to 13 mg per cycle, while the activator injection duration is from 0.27 ms to 3.5 ms. For the practical realization of the multi-point fumigation of air charge for D-243 diesel engine of MTZ-82.1 tractor the automatic system was designed. The system consists of an activator tank, filter, electric pump, rail, pressure regulator, electromagnetic injectors, electronic control unit, fuel consumption sensor, and sensor of phase and crankshaft speed. Conclusions. The device solves the problem of the automatic fumigation of air charge at the intake stroke and helps to improve power, fuel economy and environmental indicators of the automotive diesel engines. Keywords: diesel engine, fumigation of air charge, activator, system, electromagnetic injector, electronic control unit, sensor For citation: Ryblov M. V., Ukhanov D. A., Ukhanov A. P. Developing the Automatic System for the Multi-Point Fumigation of Air Charge in the Diesel Engine. Vestnik Mordovskogo universiteta = Mordovia University Bulletin. 2018; 28(4):523–536. DOI: https://doi.org/10.15507/0236-2910.028.201804.523-536 Acknowledgements: The authors thank the engineer of PNIEI company A. V. Grunyushkin for help in invention of Electronic Control Unit and in programming of microcontroller; the President of GAKS-Armservis Research and Manufacturing Association, D.Sc. (Engineering), professor S. V. Seynov for help in manufacturing of the modified intake manifold for diesel engine. Special thanks to anonymous reviewers for the objective analysis of the article.
2
Bartłomiejczyk, Mikołaj. "Bilateral power supply of the traction network as a first stage of Smart Grid technology implementation in electric traction." MATEC Web of Conferences 180 (2018): 02003. http://dx.doi.org/10.1051/matecconf/201818002003.
Full textAbstract:
Since 2001, trolleybus system in Gdynia has been involved in many activities related to the reduction of power consumption, both in terms of implementation and research and development. In PKT, in cooperation with SESTO company, started applications of Smart Grid technologies in supply network: the bilateral supply. The paper presents results of this this novel investment.
3
Gabitov, I. I., F. R. Shaihutdinov, and A. V. Negovora. "IMPROVEMENTS IN THE IN-SERVICE AGRICULTURAL MACHINERY AS AN EFFECTIVE FACTOR FOR BETTER EQUIPMENT." VESTNIK OF THE BASHKIR STATE AGRARIAN UNIVERSITY 55, no. 3 (September 25, 2020): 95–99. http://dx.doi.org/10.31563/1684-7628-2020-55-3-95-99.
Full textAbstract:
Farming equipment in Russia suffers from low energy supply. Some regions of the country managed to stop a sharp decline in the equipment level. These regions have fewer machines that have com98 pleted their expected service life and average age. In the Republic of Bashkortostan, the state agricultural enterprise «Bashselkhoztekhnika» is the leading company involved in major overhauls and improvements for agricultural businesses' in-service machinery. The paper highlights that the programmes of subsidizing agricultural producers' costs for capital overhauls and improvements in farm machinery have significantly increased the availability factor of tractors and combine harvesters and enhanced their expected service life.
4
Szelag, Adam, Tadeusz Maciolek, and Marek Patoka. "Effectiveness of filters in 3 kV DC railway traction substations supplied by distorted voltage- measurements and diagnostics." ACTA IMEKO 4, no. 2 (June 29, 2015): 72. http://dx.doi.org/10.21014/acta_imeko.v4i2.232.
Full textAbstract:
Electric energy quality criteria relating to a DC supply system concern the circuits from the rectifiers installed in traction substations till the vehicle's current collector. Energy Law and related implementing provisions unequivocally state that an electrified transport system as the energy recipient shall fulfil the requirements regarding energy consumption, which are defined in the agreement. It imposes certain requirements for the railway power supply company. Introduction into traffic of the traction vehicles that are equipped with converter power electronics drive systems increased requirements regarding voltage quality in a DC catenary. At the same time, increase in share of non-linear recipients causes the increase of distortion in AC voltage supplying traction substations, and they also transfer to the DC side. Both these factors caused a change in operational conditions of the resonance smoothing filters hitherto used in rectifier traction substations supplied by AC medium voltage power lines. This paper presents a research and a case study of the problem of effectiveness of functioning of the used filters, from measurements allowing for problem identification to results of the studies of the proposed new solution of a filter and the results of observed exploitation of a prototype with the application of digital monitoring and diagnostics system.
5
Bartłomiejczyk, Mikołaj. "SMART GRID TECHNOLOGIES IN ELECTRIC POWER SUPPLY SYSTEMS OF PUBLIC TRANSPORT." Transport 33, no. 5 (December 11, 2018): 1144–54. http://dx.doi.org/10.3846/transport.2018.6433.
Full textAbstract:
Nowadays the issue of electric energy saving in public transport is becoming a key area of interest which is connected both with a growth in environmental awareness of the society and an increase in the prices of fuel and electricity. It can be achieved by improving the usage of regenerative breaking. In 2016 the Przedsiębiorstwo Komunikacji Trolejbusowej (PKT, Trolleybus Transport Company) in Gdynia began practical implementation of Smart Grid solutions within its trolleybus network. These activities constitute an element of the project ELIPTIC, realised by PKT within the scientific research fund Horizon 2020. The first stage of implementing intelligent network solutions was completed in 2016, and further activities are planned for the next few years. This paper presents a review of Smart Grid solutions which can be implemented in urban traction supply systems, describes the PKT experience concerning the implementation of Smart Grid solutions in trolleybus network supply system to date.
6
Lafoz, Marcos, Gustavo Navarro, Jorge Torres, Álvaro Santiago, Jorge Nájera, Miguel Santos-Herran, and Marcos Blanco. "Power Supply Solution for Ultrahigh Speed Hyperloop Trains." Smart Cities 3, no. 3 (July 9, 2020): 642–56. http://dx.doi.org/10.3390/smartcities3030033.
Full textAbstract:
The paper analyses the alternatives for the power supply of a Hyperloop type railway transport. The particular case of the technology of the Spanish company ZELEROS was studied. Based on previous technical specifications related to both the first prototype and a commercial system, different options were analyzed. We selected the use of a linear motor driven by a single power electronic converter, a distribution scheme comprising different sections along the acceleration area of the track, and an energy storage system based on supercapacitors for the energy supply. The power/energy ratio and the cycle capability are the reasons to become a feasible and competitive solution. A preliminary design methodology for the energy storage requirements is presented in the paper. Once the type of linear motor was selected, the power supply scheme was presented, based on a motor-side power electronic converter and a DC/DC converter which connects to the energy storage devices. An additional low power grid-tie converter for the recharge of the energy storage system was also used. Different track sections were defined, connected to the power electronic converter through corresponding switches, being supplied sequentially when the capsule presence is detected along the track. The particular characteristics of this application, with relatively short traction track area, as well as the high energy recuperation ratio due to the low losses, make more suitable the use of energy storage systems as the source of power supply than the direct connection to the grid.
7
Croucamp, Patrick Lindsay, and Arnesh Telukdarie. "Lean implementation for rail substation processes." Journal of Quality in Maintenance Engineering 24, no. 4 (October 8, 2018): 468–87. http://dx.doi.org/10.1108/jqme-08-2017-0056.
Full textAbstract:
Purpose Traction substations are an integral part of the railway infrastructure. In order to ensure that machinery and equipment is available and utilised at full capacity, intelligent maintenance methods should be implemented. The purpose of this paper is to focus on the development of lean maintenance strategies implemented on traction substations and offer the maintenance manager an alternative maintenance method to be utilised during optimisation initiatives. Design/methodology/approach The rail company under consideration has various improvement options, the maintenance supply chain is a priority. The existing maintenance process of 3 kVDC traction substations is examined and all operations and activities directly and indirectly associated with maintenance are analysed with lean methodologies. The analysis of maintenance operations and activities reveals that some of these operations and activities are non-value-adding and, therefore, regarded as waste. These activities only prolong the maintenance process without adding value to the process. Alternative operations and activities are suggested and simulated. Findings The application of lean indicates that the maintenance process could be optimised to deliver on a more efficient process, which would improve the quality of maintenance by ensuring that maintenance is timeously carried out. Through reducing the downtime caused by maintenance, the availability of the system is preserved and the railway lines could be used to capacity. Research limitations/implications The research is limited to 3 kVDC traction substations and the associated maintenance process, as this was the area of opportunity for the company. The track and overhead traction equipment maintenance is not included. Practical implications The practical application of this research is in optimisation of the value chain for maintenance, specifically in the rail industry. Originality/value This research could be applied by maintenance managers to effectively implement if a run-to-failure (RTF) maintenance philosophy is being utilised. The research offers maintenance techniques within the RTF maintenance scope which reduces the maintenance cycle and equipment downtime.
8
German, L. A., A. Yu Popov, A. V. Samorukov, D. V. Ishkin, D. V. Yakunin, and K. S. Subkhanverdiev. "A new algorithm for automating power supply of an AC traction network with a sectioning points on switches." Vestnik of the Railway Research Institute 76, no. 5 (October 28, 2017): 266–72. http://dx.doi.org/10.21780/2223-9731-2017-76-5-266-272.
Full textAbstract:
The article considers modern sectioning points on contact network and determining the location of the damage, imthe switches, which differs by the introduction of new functions for plemented in the IntTer smart terminal. These new functions are determining a stable (or passing) short circuit in the disconnected deciding whether to perform a quick automatic restart of the circuit breakers after an emergency shutdown or finding the fault zone without testing the insulation of the contact network. The principle of operation of the functions under consideration is analyzed in the article. The limits of the optimum time of the current-free pause of the circuit breaker for automatic re-activation (AR) for each inter-substation zone are established. The paper describes the existing algorithm for automating power supply of an AC traction network (the normal reclosing algorithm) and indicates the unfavorable consequences from its application, in particular, related to the long time of the absence of voltage in the contact network. It was noted that the decision to reduce the voltage recovery time performed by introducing the function of determining the passing (or stable) short-circuit in the switched-off contact network in traction substations is due to the cost of additional high-voltage equipment and requires a rethinking. Thus, a new algorithm for automating the power supply of the traction network (the BAR algorithm) is presented, which is quite easily implemented at the modern sectioning post, which has voltage transformers for each supply line of the contact network, in contrast to the supply lines of the substation contact network and is caused by the transfer of the function of determining the passing (or steady ) short circuit to the sectioning point. In the article, the issue of performing the automatic reclosure of the power line of the traction substation is considered dependent on the successful operation of the BAR algorithm of the sectioning point. It is established that the most rational option is the implementation of a dependent automatic reclosing of a traction substation using telemechanics. The authors analyze the possibility of manufacturing compact sections of the ac contact network on the basis of single-phase re-closers OR-27.5 kV. It is noted that it is advisable to use a new automation scheme in conjunction with the sectionalization points on reclosers.
9
W. Hago, A., and A. A. Al-Rawas. "Design of a Rotary Kiln for Production of Sarooj." Journal of Engineering Research [TJER] 5, no. 1 (December 1, 2008): 55. http://dx.doi.org/10.24200/tjer.vol5iss1pp55-61.
Full textAbstract:
Sarooj is a local term used for pozzolana. It has been used extensively as a hydraulic binder in buildings, hydraulic installations, forts and castles, and in the renovation of historical monuments. It is produced by burning specific clay soil that possesses adequate quantities of silica, alumina and iron oxides. In the past, the material was produced using a large amount of energy most of which is wasted by blowing winds. The burning system was usually thermally inefficient, and the output is rarely checked for quality. Test on products produced by using the traditional method may yield poor quality Sarooj due to inadequate burning or over burning or even insufficient grinding in the end. In this research, extensive experimentation has been performed on the method of production of Sarooj to determine the factors influencing Sarooj quality. Based on these factors, a new method of production is proposed. In this method, a fully mobile kiln was designed to produce Sarooj on the site. The kiln can produce 200 kg/h of Sarooj, and can be installed within one hour of arriving on the site. It can be towed by a tractor or a normal vehicle to the desired location, connected to the natural gas supply and the electric power. The construction is light, compact, and easy to start and shut down. In this paper, the plant is described in detail, together with some preliminary results of testing done on Sarooj produced by the kiln. Full details of tests on the product of the kiln will be given in a subsequent paper.
10
Mariscotti, Andrea, and Leonardo Sandrolini. "Detection of Harmonic Overvoltage and Resonance in AC Railways Using Measured Pantograph Electrical Quantities." Energies 14, no. 18 (September 8, 2021): 5645. http://dx.doi.org/10.3390/en14185645.
Full textAbstract:
Harmonic resonances are part of the power quality (PQ) problems of electrified railways and have serious consequences for the continuity of service and integrity of components in terms of overvoltage stress. The interaction between traction power stations (TPSs) and trains that causes line resonances is briefly reviewed, showing the dependence on infrastructure conditions. The objective is monitoring of resonance conditions at the onboard pantograph interface, which is new with respect to the approaches proposed in the literature and is equally applicable to TPS terminals. Voltage and current spectra, and derived impedance and power spectra, are analyzed, proposing a compact and efficient method based on short-time Fourier transform that is suitable for real-time implementation, possibly with the hardware available onboard for energy metering and harmonic interference monitoring. The methods are tested by sweeping long recordings taken at some European railways, covering cases of longer and shorter supply sections, with a range of resonance frequencies of about one decade. They give insight into the spectral behavior of resonances, their dependency on position and change over time, and the criteria needed to recognize genuine infrastructure resonances from rolling stock emissions.
Books on the topic "Tractor Supply Company"
1
Work hard, have fun, make money: The Tractor Supply story. Brentwood, Tenn: Tractor Supply Co., 2004.
Find full text
2
Ltd, ICON Group, and ICON Group International Inc. TRACTOR SUPPLY COMPANY: Labor Productivity Benchmarks and International Gap Analysis (Labor Productivity Series). 2nd ed. Icon Group International, 2000.
Find full text
3
Ltd, ICON Group. TRACTOR SUPPLY COMPANY: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series). 2nd ed. Icon Group International, 2000.
Find full textBook chapters on the topic "Tractor Supply Company"
1
"Case Study: Tractor Supply Company." In Becoming a Category of One, 183–207. Hoboken, NJ, USA: Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118256176.ch9.
Full text
2
Thomson, Peter. "Into the Lake—Deep." In Sacred Sea. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195170511.003.0012.
Full textAbstract:
Dress warmly, hold your breath, and take a dive . . . You pierce the surface of Baikal at a soft angle and slip like the low rays of the high-latitude sun into a prism of liquid glass. The water molecules release their bonds with each other to embrace you. Sunlight follows you, wiggles, and scatters; the photons themselves become liquid. Sound becomes a liquid, too, thick and syrupy. Gravity loses its bearings and presses at you from all around. Normal reference points fall away— up and down, left and right—your sense of where you are comes only from subtle changes in light, temperature, and pressure. This will take some getting used to. But not to worry, here in the world’s oldest lake, still in its youth at twenty-five million years, you’ve got nothing but time. And if you put on your special magnifying goggles, you’ll see that you’ve got plenty of company, as well. You’re surrounded by a haze of tiny creatures, each no longer than a millimeter and a half. They’re Epischura baicalensis, those elfin shrimp that float through the lake, sucking massive Baikal through their little digestive tracts, feeding on algae and bacteria, pulling out impurities, and helping to keep the lake clean and clear. Epischura baicalensis are members of a group of organisms known as zooplankton—tiny animals and larva that drift and swim through the water, buffeted about by waves and currents. The miniscule creatures that make up zooplankton live everywhere, in just about every body of water on earth, and like Epischura baicalensis, many of them are little shrimp, or copepods. But Epischura baicalensis live nowhere else, and apparently can’t live anywhere else. It’s said that they can’t live even in a glass of Baikal water removed from the lake. Perhaps they die of homesickness. The water surrounding you as you float in Baikal is about as close as you can get in nature to pure H2O. It’s what aquatic scientists call “oligotrophic”— there’s very little in the way of nutrients and minerals running off into it from the surrounding landscape, and so a very limited supply of some of the basic building blocks of life.
Conference papers on the topic "Tractor Supply Company"
1
Wells, Arthur, Kyle McGann, and John Parmigiani. "Semi-Truck Driver Safe Egress Analysis and Renovation." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24019.
Full textAbstract:
Abstract The backbone of most supply chains is the trucking business. This highly competitive industry requires that loads be delivered on-time and in an economic manner. A major logistics company has found that accidents causing driver injury are inhibiting their ability to meet both requirements. Non-fatal injuries for truck drivers are 7 times the national average, and 30% of these are from falls, slips, and trips. Specifically, an ongoing problem is drivers slipping and falling when entering and exiting tractor cabs. Better entry-and-exit hardware and procedures need to be developed and implemented. To contribute to solving this problem, Oregon State University (OSU) was contacted by a major truck manufacturer to develop supplemental hardware and procedures. The project was pursued through OSU’s Prototype Development Lab (PDL). The work performed consisted of (i) a background investigation to determine accident root causes, (ii) development of alternative design solutions, (iii) selection of a preferred design solution through consultation with all stakeholders, (iv) development of the preferred solution consisting of a hardware prototype and associated procedures, and (v) evaluation and revision of the solution based on user feedback. The background investigation was performed as follows. To determine the causes, the company’s safety procedures and incident reports were reviewed. From this information, a driver survey was developed. This provided a data set from which an industrial engineering analysis was performed. The root causes of the accidents were clearly identified. These are: slipping on steps, not following the “three points of contact” rule, and the handles not proving appropriate grip. Slipping and not having enough grip is a design problem with the driver hardware aids for transiting to and from the cab. Not following procedure is a behavioral problem. There is a well-engineered procedure in place for transiting between the cab and the ground. However, drivers often circumvent this solution leading to accidents. Alternative design solutions were created to address both the shortcomings of the current hardware and the current circumventable procedures. This consisted of four mechanical-device concepts that could be retrofitted to existing cabs that improved grip and prevented the drivers from exiting the cab in a manner contrary to the established procedures. The design selection was performed based on feedback from project stakeholders. Ultimately, the effectiveness of the solutions was determined by driver response, so a second survey was made to gauge driver feedback. This was used to present the options to the trucking manufacturer and logistics company. A single design solution was chosen. The solution was an additional mechanical handle retrofitted to the cab. This handle swings out from the driver’s foot-well and impedes entering and exiting the cab in an improper manner. It also provides a more accessible, more rigid point of contact. To evaluate this solution, a prototype polyethylene handle was made to determine proper placement and function in a truck cab. From this, the handle was revised, and a functional prototype was created. This allowed testing and an ergonomic study to be performed. A final design was then created. This was forwarded to the truck manufacturer for final development and mass production.
2
Takino, Toshiaki, and Tetsuro Iwakami. "Education for the engineers of traction power supply division in East Japan Railway Company." In 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 ECCE-ASIA). IEEE, 2014. http://dx.doi.org/10.1109/ipec.2014.6869682.
Full text
3
Vitins, Janis. "The TRAXX Platform: A New Way to Build Electric and Diesel Locomotives." In IEEE/ASME/ASCE 2008 Joint Rail Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/jrc2008-63010.
Full textAbstract:
The opening of the European market for freight and passenger services has initiated the need for cross-border locomotives which fulfill the specific requirements of each country and comply with new European standards. The TRAXX locomotive platform addresses this new market with four locomotive types. Each type is configured with standard building blocks. The TRAXX platform covers both electric and diesel 4-axle locomotives. A high level of standardization allows manufacturing of all types in a single assembly line, thus also reducing manufacturing costs for small production lots. The key to the TRAXX platform is a high level of system integration. Important innovations are in the traction chain, carbody, air supply, in the development of automatic train protection (ATP) systems based on the future European standard ETCS (European Train Control System) and in system integration. Today, the TRAXX platform covers all major mainline traction needs in continental Europe with more than 1′200 locomotives so far sold. Further developments are needed to optimize the ATP systems for new and important cross-border freight corridors and to streamline the homologation procedures throughout Europe.
4
Waters, Allison J., and Amir Khajepour. "Optimization of Novel Corner Module for Urban Electric Vehicle." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68190.
Full textAbstract:
With urban populations on the rise, sustainable design of cities will be necessary to maintain reasonable quality of life for its inhabitants. Space to accommodate citizens in these densely populated cities will be in short supply and high demand. Strategic shifts in the transportation industry can alleviate the lack of space for residential and commercial facilities in densely populated areas. One opportunity to mitigate this growing problem is to reduce the size of personally owned, commuter vehicles. Smaller vehicles will reduce the storage space and increase the density of vehicles on roads. Another solution gaining traction in the automotive industry today are autonomous vehicles. Autonomous technology can allow cars to travels closer to one another without increasing the likelihood of a crash. Lastly, changing the market from personally owned vehicles to fleets owned by the company to be used as public transportation would reduce the traffic density. These changes to the automotive industry will facilitate a change in the layout and packaging of commercial vehicles to meet new objectives. This paper proposes a novel corner module design that meets the market’s needs for mass production of X-by-wire systems integrated into a compact space while maintaining current levels of vehicle stability, handling and ride comfort. The proposed corner module features an in-wheel motor with electronic steering and braking. To increase the handling of the vehicle, the corner module has active camber control and can be modified for active ride height adjustment. Furthermore, the simplicity and minimal quantity of the components makes the corner module design ready for mass production. The geometry of the purposed corner module was optimized using a genetic algorithm. The objectives were to target a wheel lateral displacement of 10 cm at the −15° of camber angle and to minimize the longitudinal displacement of the wheel in a steer range of −20° to 20° at 0° of camber angle. The optimization had three types of constraints: packaging space limits, component interference and cylinder size. The optimization successfully found a solution that met both objectives while remaining within the constraints. The workspace of the wheel was limited by the rear cylinder size and the fixed length of the linkage.