Relevant bibliographies by topics / Digital Pump

Academic literature on the topic 'Digital Pump'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Digital Pump"

1

Yue, Daling, Xiukun Zuo, Zengguang Liu, Yinshui Liu, Liejiang Wei, and Yuyang Zhao. "An Adaptive Control Method for the Distribution Valve of a Digital Pump." Machines 11, no. 2 (January 21, 2023): 148. http://dx.doi.org/10.3390/machines11020148.

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Perfect flow distribution is extremely important and essential for digital pumps. However, the fluctuation of motor speed and the change of valve dynamic characteristics cause the flow distribution flaw, which generates the backflow of the oil in the piston chamber and the decrease in pump volumetric efficiency. Based on the three-dimensional and mathematical modeling of the digital pump, the perfect distribution state of the digital pump is analyzed. Then, the adverse effects of the variations in motor speed and valve dynamic characteristics on the flow distribution of the digital pump were simulated and investigated by the software AMESim. To overcome the aforementioned problems, we proposed an adaptive control method for the flow distribution valve of a digital pump, which was realized by adopting the axis rotation angle and the pressure difference between the inlet and outlet of the flow distribution valve. The results show that the control signal of the flow distribution valve can be regulated automatically along with the motor speed and the valve dynamic characteristics, achieving the ideal flow distribution of the digital pump designed in this paper. The study can be used as a reference for the optimal design and prototype manufacturing of the digital pump.
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Sato, Daisuke, Yosuke Watanabe, Jun Ogawa, Nahin Islam Shiblee, Ajit Khosla, Masaru Kawakami, and Hidemitsu Furukawa. "(Digital Presentation) Development of a Low-Torque Transfer System Using a Progressive Cavity Pumps with Gels." ECS Meeting Abstracts MA2022-01, no. 57 (July 7, 2022): 2375. http://dx.doi.org/10.1149/ma2022-01572375mtgabs.

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Progressive cavity pumps (PCPs) consist of a rotor and a stator. The extrusion process of PCPs is governed by a single-helical rotor which rotates eccentrically within a double-helical stator of twice the pitch length. Between the seal lines (the contact lines of rotor and stator), there are cavities which are constantly moved towards the discharge end of the pump. As one cavity is eliminated, another cavity develops, keeping the cross-sectional area of the cavities constant. The process makes a continuous non-pulsating flow in the PCPs. The developed pushing–and–suction action allows PCPs to exert significantly lower shear rates on the pumped material, compared to other pump types, such as membrane pumps or peristaltic pumps. However, the sliding of the rotor and stator in the pump causes a biting phenomenon [1-3]. Therefore, the degradation of particles in the fluid occurs. In this study, we adopted a flexible, low-friction gels as the stator material. By using gels materials as stator, we could make a pump that could discharge at low torque as previously reported by our group [4]. In this work, the rubber stator and the gels stator fabricated by 3D printing were compared and evaluated by performing discharge and torque test. References: [1] K. Nishimura, E. Uetsuji, and Y. Iwai, “Study on the Behavior of Particles in the Sliding Portion of a Progressive Cavity Pump”, Journal of Japanese Society of Tribologists, Vol. 63 (2018), No. 9 pp. 641-650 [2] P. Fisch, M. Holub, and M. Z. Wong, “Improved accuracy and precision of bioprinting through progressive cavity pump-controlled extrusion”, 2021 Biofabrication 13 015012 [3] M. Horie, S. Shigemitsu, S. Ookura, “Fundamental Study on Pediatric Single Eccentric Screw Blood Pump”, Turbomachinery, vol. 43(2015), No.4 pp.222-228 [4] Yeh, Yee Cheng, Naoya Yamada, Yosuke Watanabe, MD Nahin Islam Shiblee, Jun Ogawa, Ajit Khosla, Masaru Kawakami, Teruaki Akamatsu, and Hidemitsu Furukawa. “3D Printing of Soft-Matter Mono Pump in Infant Ventricular Assist Device (VAD) for Blood Pumping” ECS Transactions 98, no. 13 (2020): 31.
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Breidi, Farid, Jordan Garrity, and John Lumkes. "Design and Testing of Novel Hydraulic Pump/Motors to Improve the Efficiency of Agricultural Equipment." Transactions of the ASABE 60, no. 6 (2017): 1809–17. http://dx.doi.org/10.13031/trans.11557.

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Abstract. Hydraulic systems are prevalent in agricultural machinery and equipment and can be found transmitting power for vehicle drive wheels, powering attachments, and controlling motion (booms, steering, load height, etc.). Agricultural applications of fluid power have advanced in terms of capability and efficiency, but opportunities remain for significant improvements in efficiency, noise reduction, and reliability. The average system-level hydraulic efficiency of current mobile agricultural machines is only 21.1%. Because nearly all hydraulic systems use pumps to convert engine power to fluid power, improving the efficiency of the pumps (and motors when used as actuators) significantly impacts the system efficiency. This work examines the impact of using more efficient digital pump/motors to improve the overall efficiency of agricultural equipment, such as tractors, harvesters, planters, fertilizers, sprayers, and attachments. Maintaining higher pump/motor efficiency throughout the operating range is the central principal for the energy savings. Currently used variable-displacement pumps have low efficiencies at low displacement levels due to constant losses that do not scale with the power produced. Digital pump/motors minimize these inefficiencies because energy losses scale more closely with the power produced. Experimental results indicate an average efficiency of 85% when operating at 20% to 100% displacement. This efficiency is 15% to 20% higher on average than with current variable-displacement axial piston pumps. This study demonstrates that achieving this improvement in the efficiency of the pump/motors used in tractors and harvesters alone would conservatively save $61.7 million worth of energy annually for end users in the U.S. agricultural sector. Keywords: Agricultural equipment, Digital hydraulics, Efficiency improvement, Hydraulic pump/motor.
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Zagar, Philipp, Helmut Kogler, Rudolf Scheidl, and Bernd Winkler. "Hydraulic Switching Control Supplementing Speed Variable Hydraulic Drives." Actuators 9, no. 4 (December 4, 2020): 129. http://dx.doi.org/10.3390/act9040129.

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Primary control of linear motion by variable speed electric motors driving a hydraulic cylinder via a constant displacement pump is an established and successful concept with a frequent use in industry. One problem arises when low or zero motion speed has to be realized under high pump pressure conditions. Such load scenarios occur frequently in certain pressing processes, e.g., for sintering or veneering. Most pumps have a lower speed limit, below which critical tribological conditions occur which impair lifespan and efficiency. In addition, pump speed control and pump fluctuation suffer from the mixed lubrication conditions in such an operation range. For a circumvention of such low speed pump operation, a digital valve control concept is presented and studied in this paper. Valve control is used in load holding phases with low speed. Pressure is provided by an accumulator which is charged by the pump in short charging cycles at reasonable pump speeds. It is shown that the mean control error during load holding phase lies within the desired band and the fluctuations of the control force are lower than those of the pump control. In addition, the unfavorable pump operation conditions can be avoided via digital control.
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Azzam, Israa, Keith Pate, Jose Garcia-Bravo, and Farid Breidi. "Energy Savings in Hydraulic Hybrid Transmissions through Digital Hydraulics Technology." Energies 15, no. 4 (February 13, 2022): 1348. http://dx.doi.org/10.3390/en15041348.

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Hydraulic hybrid drivetrains, which are fluid power technologies implemented in automobiles, present a popular alternative to conventional drivetrain architectures due to their high energy savings, flexibility in power transmission, and ease of operation. Hydraulic hybrid drivetrains offer multiple environmental benefits compared to other power transmission technologies. They provide heavy-duty vehicles, e.g., commercial transportation, construction equipment, wagon handling, drilling machines, and military trucks, with the potential to achieve better fuel economy and lower carbon emissions. Despite the preponderance of hydraulic hybrid transmissions, state-of-the-art hydraulic hybrid drivetrains have relatively low efficiencies, around 64% to 81%. This low efficiency is due to the utilization of conventional variable displacement pumps and motors that experience high power losses throughout the drive cycle and thus fail to maintain high operating efficiency at lower volumetric displacements. This work proposes and validates a new methodology to improve the overall efficiency of hydraulic hybrid drivetrains by replacing conventional pump/motor units with their digital counterparts. Compared to conventional pump/motors, the digital pump/motor can achieve higher overall efficiencies at a wide range of operating conditions. A proof-of-concept digital pump/motor prototype was built and tested. The experimental data were integrated into a multi-domain physics-based simulation model of a series hydraulic hybrid transmission. The proposed methodology permits enhancing the overall efficiency of a series hydraulic hybrid transmission and thus allows for energy savings. Simulating the system at moderate load-speed conditions allowed achieving a total efficiency of around 89%. Compared to the average efficiency of the series hydraulic hybrid drivetrains, our simulation results reveal that the utilization of the state-of-the-art digital pump enables improving the total efficiency of the series hydraulic hybrid drivetrain by up to 25%.
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Ballo, Andrea, Michele Bottaro, Alfio Dario Grasso, and Gaetano Palumbo. "Regulated Charge Pumps: A Comparative Study by Means of Verilog-AMS." Electronics 9, no. 6 (June 15, 2020): 998. http://dx.doi.org/10.3390/electronics9060998.

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This paper proposes a comparative study of regulation schemes for charge-pump-based voltage generators using behavioral models in Verilog- Analog Mixed Signal (AMS) code. An accurate and simple model of the charge pump is first introduced. It allows reducing the simulation time of complex electronic systems made up by both analog and digital circuits while maintaining a good agreement with transistor-level simulations. Finally, a comprehensive comparative study of the different regulation schemes for charge pumps is reported which allows the designer to choose the most suitable topology for a given application and Charge Pump (CP) operative zone.
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Anjum, Gazala. "Automated Digital Petrol Pump using Arduino ATmega2560." International Journal for Research in Applied Science and Engineering Technology 7, no. 9 (September 30, 2019): 977–82. http://dx.doi.org/10.22214/ijraset.2019.9136.

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Rokhman, Mukhamad Ryan Nur, Bambang Guruh Irianto, and Her Gumiwang Ariswati. "Digital Pressure Meter Tensimeter Dan Suction Pump." Jurnal Teknokes 12, no. 1 (September 19, 2019): 1–4. http://dx.doi.org/10.35882/teknokes.v12i1.1.

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Kalibrasi merupakan suatu kegiatan teknis yang terdiri atas penetapan, penentuan satu atau lebih sifat dan karakteristik dari suatu produk, proses atau jasa sesuai dengan prosedur khusus yang telah ditetapkan. Tujuan kalibrasi yaitu untuk menjamin hasil pengukuran sesuai dengan standar nasional maupun internasional. Digital pressure meter (DPM) Tensimeter dan Suction Pump merupakan alat kalibrasi yang digunakan untuk menentukan tekanan positif maupun negatif (vacum). Memiliki titik resolusi naik turun 0,25 mmHg. Display yang digunakan pada modul ini adalah LCD 4x20 dimana pemograman keseluruhan menggunakan arduino ATmega328. Setelah melalui proses pembandingan dengan alat Pressure Calibrator di BPFK yang terkalibrasi di dapat nilai kesalahan dan error cukup rendah untuk nilai kesalahan pada tekanan positif bernilai kurang dari 0,83 mmHg, dan kurang dari 0,67 untuk tekanan negatif. Memiliki hasil rata-rata error sebesar 0,24% untuk tekanan positif dan tekanan negative.
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Min Hu, Hejun Du, and Shihfu Ling. "A digital miniature pump for medical applications." IEEE/ASME Transactions on Mechatronics 7, no. 4 (December 2002): 519–23. http://dx.doi.org/10.1109/tmech.2002.805620.

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Shrestha, Rajesh, Arun Raj Dhakal, Saroj Thakur, Dipak Subedi, and Mahesh Sharma. "Design of Digital Solar Water Pump Using Microcontroller ATmega 32." Electrical Science & Engineering 4, no. 2 (October 19, 2022): 11. http://dx.doi.org/10.30564/ese.v4i2.4945.

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This paper focuses on the application of solar energy along with microcontrollers to design and run a motor to pump water from various sources. The solar water pump is one of the applications or appliance that perform task with the use of solar radiation. The solar water pump consists of solar PV array, solar pump, inverter, AC water pumping device etc. Solar energy radiation is converted in electrical current or power source which is then used to run a pump and draw water directly from ground, wells, rivers, lakes etc. In this paper, the relationship between flow rate of the water and luminous intensity of the solar irradiance is studied and the data are linearly fitted to find out the correlation between these parameters. Also the study about efficiency of the solar powered water pump shows that the operation of this type of pumping system is quite efficient than other types of fossil fuel engines like diesel, petrol, kerosene etc. in long run. The use of Arduino Uno, flow sensor, LDR sensors in the solar powered water pump helps to analyze the relation between these parameters and know the conditions favorable for excess supply of water in short time efficiently. These solar powered devices are the future of clean and green future of this world. Thus it is not only necessary but also compulsory to enhance the usage of solar energy throughout the globe.
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Dissertations / Theses on the topic "Digital Pump"

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Rampen, William Hugh Salvin. "The digital displacement hydraulic piston pump." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/12829.

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The digital displacement hydraulic piston pump is a hybrid device which combines a microcompressor with an established form of high-pressure pump to create a highly integrated machine which can produce a variable high-power output directly from an electronic command. The actively controlled inlet poppet-valve in each cylinder can be held open against the discharging flow in order to disable it during a single cycle. Cylinders can be disabled in this manner, following a maximally smooth sequence, allowing a controlled output flow to be achieved. A compliant device located near the pump, such as an accumulator, provides time-averaging of the flow pulsations in order to minimise the effects of the quantisation error caused by cylinder disabling. The advantages of this approach over the conventional variable-swash axial piston pump lie with both the response speed and the inherent energy efficiency of real-time cylinder selection. Disabling cylinders in this way restricts parasitic losses to very low levels since unused cylinders are not pressurised nor do they incur loads on their associated bearings. The response time of the pump is related to shaft speed, with the pump able to attain either full or zero output from any starting condition, in less than a single shaft revolution. At induction motor speeds this allows large-signal response times of the same order as those achieved by commercial proportional valves. The thesis chronicles the development of the Digital Displacement pump. It begins with the formulation of a simulation model which is able to predict the behaviour of the machine in both flow and pressure control modes. The valve control possibilities are then explored and the design of active valve latches using finite-element analysis described. The sinusoidal flow forces on the disabled poppet are evaluated through a large range of experiments and the results condensed into parametric equations useful for predicting the valve latching requirements of most machines. The mechanical and electronic hardware design, leading to the construction of the prototype, is then discussed.
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Pellegri, Matteo, Matthew Green, Jill Macpherson, Callan McKay, and Niall Caldwell. "Applying a multi-service digital displacement® pump to an excavator to reduce valve losses." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71185.

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Reducing the energy consumption of off-highway machinery due to poor system efficiency is an urgent challenge. Several advanced and innovative architectures have been proposed over the years to tackle this problem, but very few of them found fertile ground for commercial applications due to increased complexity and cost. In this paper, the design, implementation, and testing of a multi-service Digital Displacement ® Pump architecture applied to an excavator are presented. The Digital Displacement ® Pump allows for a dynamic physical displacement allocation to services at different pressure levels, thus reducing throttling losses required to operate multiple actuators simultaneously. A feed-forward control logic is implemented and applied to the system using a closed-centre architecture. The results indicate a fuel reduction of more than 30% compared to the baseline excavator.
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Burbidge, Martin John. "Simple generic digital-only DfT methodologies applicable for embedded charge-pump based frequency synthesis systems." Thesis, Lancaster University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430016.

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Madhusudanan, Jayasurya. "Evaluation of a digitial displacement pump in a load haul dump application." Thesis, Linköpings universitet, Fluida och mekatroniska system, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-162594.

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Hydraulics has always been the first choice of actuation in off-road, construction and mining vehicles due to its power density, low cost, built in cooling and lubrication. However, the current state of our environment along with stricter regulations has brought light to newer technologies within hydraulics to improve the existing system. This urge to enhance efficiency and reduce energy consumption has led to a point where new technologies must be evaluated. One such technology is the programmable hydraulic pump called the digital displacement pump (DDP). This new pump may have the potential to revolutionize mobile hydraulics as it can be used to improve part load efficiencies, response and make it easier to control from a system perspective. The DDP is a radial piston pump that has been fit with solenoid on/off valves at the inlet of each cylinder to control the flow of the working fluid. The displacement setting of the pump depends on the displacement of each cylinder controlled digitally by the 'active' inlet valve. The pump can act as a single unit to supply one circuit or it can dedicate pistons for supplying several circuits in parallel using different pump outlet configurations. They can be setup to run in pressure controlled or flow controlled systems to achieve the above mentioned flow sharing capability. An energy study based on two fixed drive cycles (short and intermediate) are conducted on the existing system of a loader used for mining called the ST14 Battery. A breakdown of the energy consumption in the machine is created to look at the impact of the three main actuators (boom, bucket and steering), pump losses and throttling losses have. The losses due to simultaneous load handling and the energy that can be saved by swapping the pumps with a digital displacement pump are also found out and analysed. A model of the existing hydraulic system is made using Simulink and Hopsan using the data and results from the energy study. It will be used to simulate and evaluate future system architectures. This model is then used to simulate a system architecture where the existing pumps are swapped with digital displacement pumps. This architecture is more energy efficient due to the higher energy efficiency of the pump. The findings from the energy study and simulations are compared and results are obtained regarding power losses, energy consumption and overall usability of the models. The addition of the two DDP’s instead of the existing inline pumps has resulted in energy savings resulting in 4% more running time in the intermediate cycle and 5.6% in the short cycle while keeping the functionality of the machine.
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Fu, Minghua. "Development and evaluation of a robust and intelligent digital control system for a rotary blood pump /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487953204280546.

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Al, Sabbagh Mhd Zaher. "0.18um phase/frequency detector and charge pump design for digital video broadcasting for handheld's phase-locked-loop systems." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196281141.

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Al, Sabbagh Mhd Zaher. "0.18μm phase/frequency detector and charge pump design for digital video broadcasting for handheld’s phase-locked-loop systems." The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1196281141.

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Yogesh, Mitesh. "A Self-compensated, Bandwidth Tracking Semi-digital PLL Design in 65nm CMOS Technol-ogy." Thesis, Linköpings universitet, Elektroniksystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-85143.

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In a conventional charge-pump based PLL design, the loop parameters such as the band-width, jitter performance, charge-pump current, pull-in range among others govern the ar-chitecture and implementation details of the PLL. Different loop parameter specificationschange with a change in the reference frequency and inmost cases, requires careful re-designof some of the PLL blocks. This thesis describes the implementation of a semi-digital PLLfor high bandwidth applications, which is self-compensated, low-power and exhibits band-width tracking for all reference frequencies between 40 MHz and 1.6 GHz in 65nm CMOStechnology.This design can be used for a wide range of reference frequencies without redesigning anyblock. The bandwidth can be fixed to some fraction of the reference frequency during designtime. In this thesis, the PLL is designed to make the bandwidth track 5% of the referencefrequency. Since this PLL is self-compensated, the PLL performance and the bandwidthremains same over PVT corners.
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Vyas, Rushi J. "An embedded, wireless-energy-harvesting platform (E-WEHP) for powering sensors using existing, ambient, wireless signals present in the air." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52291.

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The objective of this research is to develop an embedded, wireless, energy-harvesting prototype (E-WEHP) that can power on and sustain embedded sensing functions using the power present in ambient wireless signals in urban areas. This research is part of a bigger effort towards greening RF circuits and applications in order to reduce their pollution foot-print. Pollution due to modern electronics is primarily caused by non-biodegradable packaging waste and batteries that form a big part of most electronics. Electronic waste can especially be a nuisance in RFID and wireless sensors that are mass-produced and widely-used in consumer items, buildings, industries, agriculture and transportation. The first part of this research effort addresses the issue of minimizing electronic packaging waste by characterizing and using biodegradable substrates such as Paper and Perfluoropolymer (PFA) as a dielectric material in RF circuits. Towards this goal, the first of its kind active wireless sensor modules made of biodegradable paper substrate using a clean and novel inkjet-printing technology is developed and successfully operated in the 900 MHz free ISM band. The second and third part of this research effort addresses the issue of battery waste by investigating the use of ambient solar and wireless radiation for powering RF and embedded electronics for wireless localization and sensing applications without the use of batteries. The second part of this work presents a unique solar-powered tag called SOLTAG that combines solar cells along with an RFID-type powering mechanism to implement a very low-cost, battery-less, semi-passive wireless-tag but with a much longer range than passive EPC-Gen2 RFID tags. A GPS-like, low-cost, vehicle-tracking system based on a received-signal-strength-indication method using SOLTAGs in vehicles and a wireless network of Mica-motes is successfully developed and tested with accuracy down to 1.62 meters The third and main part of this research work presents a novel embedded-wireless-energy-harvesting-prototype (E-WEHP) that can successfully power-on and sustain sensing and M2M peripherals in a 16-bit microcontroller using the power present in ambient, wireless, Digital-TV signals without the use of batteries. This work involves an in-depth characterization of OFDM signals used in Digital-TV broadcasts in Tokyo and Atlanta along with the design and development of the E-WEHP hardware and firmware that exploits the multi-carrier nature of such TV signals for powering itself at a range of over 6 km from the TV broadcast sources. This work opens up the possibility of pervasively powering sensor motes for applications such as environmental sensing, smart homes, structural health monitoring, security and internet of things without the environmental and logistical cost of periodic battery replacement and disposal.
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Terlemez, Bortecene. "Oscillation Control in CMOS Phase-Locked Loops." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4841.

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Recent advances in voltage-controlled oscillator (VCO) design and the trend of CMOS processing indicate that the oscillator control is quickly becoming one of the forefront problems in high-frequency and low-phase-noise phase-locked loop (PLL) design. This control centric study explores the limitations and challenges in high-performance analog charge-pump PLLs when they are extended to multiple gigahertz applications. Several problems with performance enhancement and precise oscillator control using analog circuits in low-voltage submicron CMOS processes, coupled with the fact that analog (or semi-digital) oscillators having various advantages over their digitally controlled counterparts, prompted the proposal of the digitally-controlled phase-locked loop. This research, then, investigates a class of otherwise analog PLLs that use a digital control path for driving a current-controlled oscillator. For this purpose, a novel method for control digitization is described where trains of pulses code the phase/frequency comparison information rather than the duration of the pulses: Pulse-Stream Coded Phase-Locked Loop (psc-PLL). This work addresses issues significant to the design of future PLLs through a comparative study of the proposed digital control path topology and improved cutting-edge charge-pump PLLs.
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Books on the topic "Digital Pump"

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Giannakou, Klia. Pulp fiction: The downloadable digital text measured against the traditional paperback, will it ever take over?. London: LCP, 2001.

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Boudjaoui, Anissa, and Michael B. Sutton. Pump it Up Magazine: With Michael Matthews Founder of Digital Radio Tracker. Pump It Up Magazine, 2021.

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Lotus Solutions for the Enterprise, Notes Pump: The Enterprise Data Mover. Ibm, 1998.

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Wignall, Liam. Kinky in the Digital Age. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780197503195.001.0001.

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Once a secretive and hidden practice, kinky sex is visible like never before, represented in songs, books, and Hollywood movies. Yet away from these fantastical representations of sensationalized sex, kink is practiced by ordinary people in communities and imbued with psychological meaning for their social identities. This book focuses on the social worlds of gay and bisexual men who engage in kink, and it reveals the dynamic interplay of sexual desires and social meaning that constitutes contemporary kink cultures. Melding psychological and sociological theories, this book documents significant changes in kink narratives among people immersed in kink communities while highlighting the diverse ways in which non-community members engage in kinky sexual practice. Drawing on longitudinal data from 74 in-depth interviews with gay and bisexual men, in addition to ethnographic observations with several kink communities and events over a period of 6 years, the book provides a groundbreaking account of how the internet has transformed the experiences of kink for gay men as well as the communities in which it is practiced. Rejecting a binary of online versus “real life,” this book shows how the digital is increasingly a part of kink communities and subcultures. The second half of the book examines the emergence of pup play as a kink activity and its consolidation as a community and subculture that enables people to explore kink in more playful ways.
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Freeman, M., C. Scolari, and P. Bertetti. Transmedia Archaeology: Storytelling in the Borderlines of Science Fiction, Comics and Pulp Magazines. Palgrave Pivot, 2014.

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Freeman, M., C. Scolari, and P. Bertetti. Transmedia Archaeology: Storytelling in the Borderlines of Science Fiction, Comics and Pulp Magazines. Palgrave Macmillan Limited, 2014.

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Transmedia Archaeology: Storytelling in the Borderlines of Science Fiction, Comics and Pulp Magazines. Palgrave Pivot, 2014.

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Storrs, Tim. DIGITAL PULP : a Series of Fiction: CROSS JOSEPH P. I. Episode #1 the Melvin Jefferson Matter. Independently Published, 2018.

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Carbonell, Curtis D. Dread Trident. Liverpool University Press, 2019. http://dx.doi.org/10.3828/liverpool/9781789620573.001.0001.

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Dread Trident examines the rise of imaginary worlds in tabletop role-playing games (TRPGs), such as Dungeons and Dragons. With the combination of analog and digital mechanisms, from traditional books to the internet, new ways of engaging the fantastic have become increasingly realized in recent years, and this book seeks an understanding of this phenomenon within the discourses of trans- and posthumanism, as well as within a gameist mode. The book explores a number of case studies of foundational TRPGs. Dungeons and Dragons provides an illustration of pulp-driven fantasy, particularly in the way it harmonizes its many campaign settings into a functional multiverse. It also acts as a supreme example of depth within its archive of official and unofficial published material, stretching back four decades. Warhammer 40k and the Worlds of Darkness present an interesting dialogue between Gothic and science-fantasy elements. The Mythos of HP Lovecraft also features prominently in the book as an example of a realized world that spans the literary and gameist modes. Realized fantasy worlds are becoming ever more popular as a way of experiencing a touch of the magical within modern life. Following Northrop Frye’s definition of irony, Dread Trident theorizes an ironic understanding of this process and in particular of its embodied forms.
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Book chapters on the topic "Digital Pump"

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Rajeshwari, D. S., and P. V. Rao. "Architectures of Charge Pump for Digital Phase Locked Loops." In Lecture Notes in Networks and Systems, 29–38. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3812-9_3.

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Ivanov, Evgeniy, Aleksandr Zharkovskii, Igor Borshchev, and Arsentiy Klyuyev. "Comparison of the Shape of Digital Models of Pump Components." In Proceedings of International Scientific Conference on Telecommunications, Computing and Control, 99–108. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6632-9_8.

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Reich, Jan, Joshua Frey, Emilia Cioroaica, Marc Zeller, and Martin Rothfelder. "Argument-Driven Safety Engineering of a Generic Infusion Pump with Digital Dependability Identities." In Model-Based Safety and Assessment, 19–33. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58920-2_2.

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Villagomez, Luis E., Daniel Cortés, José Ramírez, Alejandro Álvarez, Rafael Batres, Ivann Reyes, Germán Esparza, Nancy Cruz, and Arturo Molina. "Discrete Event Simulation as a Support in the Decision Making to Improve Product and Process in the Automotive Industry - A Fuel Pump Component Case Study." In Collaborative Networks and Digital Transformation, 572–81. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28464-0_50.

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Vesanen, Teemu, Kiviniemi Markku, Kostas Tsatsakis, and Gabriele Masera. "Digital Tools for Fast-Track Renovation Operations." In Innovative Tools and Methods Using BIM for an Efficient Renovation in Buildings, 75–94. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04670-4_6.

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AbstractDigital tools for fast-track renovation operations developed in the project aim to shorten the duration of renovation and disturbance to the occupants with BIM-enabled methods and tools in operations management at site and with prefabrication to speed up the installation tasks. The chapter presents an ensemble of tools, concepts and use cases. First, two tools are described that are used to support construction production management and user communication. Then a concept how product data could be used as part of the tools and further how the product data and the tools could support in achieving the overall BIM4EEB objectives in the use cases of prefabricated exhaust air heat pump and prefabricated thermal insulation. Target of the work was to improve the state-of-the-art planning and monitoring. A new tool was created that combines the BIM model and typical work breakdown structure (WBS) based project scheduling into location breakdown structure (LBS) based user-interface. Continuously updated LBS provide valuable information to stakeholders with web-service and mobile applications. The 24/7 situational awareness of the renovation activities status provides unprecedented transparency of the project progress. Hence, the system allows scheduling the site activities with shorter lead times to shorten the total construction duration while it is possible to immediately take control of possible deviations in implementation. The reliable progress data is available also to the clients and occupants with right timed guidance and safety instructions. The other aim in the work was to utilise BIM for increasing the share of prefabrication in renovation projects. The BIM-based design allows to manage the compatibility and tolerances between design disciplines and adapting those with mapped geometry of the building will enable the prefabrication and preassembling of structural and system components also in renovation. Two best practice examples were developed and described showing how to utilise prefabrication in real renovation scenarios.
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Bagrov, A. Y., R. I. Dmitrieva, O. V. Fedorova, E. A. Kuznetsova, and N. I. Roukoyatkina. "Endogenous Digitalis in Acute Myocardial Ischemia." In The Sodium Pump, 787–90. Heidelberg: Steinkopff, 1994. http://dx.doi.org/10.1007/978-3-642-72511-1_143.

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Lichtstein, D., I. Gati, S. Samuelov, D. Berson, Y. Rozenman, L. Landau, and J. Deutsch. "New steroidal digitalis-like compounds in human cataractous lenses." In The Sodium Pump, 759–62. Heidelberg: Steinkopff, 1994. http://dx.doi.org/10.1007/978-3-642-72511-1_136.

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Balzan, S., S. Ghione, L. Pieraccini, P. Biver, V. Di Bartolo, and U. Montali. "Endogenous Digitalis-Like Factor from Umbilical Cord and Ouabain: Comparison of Biochemical Properties." In The Sodium Pump, 755–58. Heidelberg: Steinkopff, 1994. http://dx.doi.org/10.1007/978-3-642-72511-1_135.

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Schmidt, T. A., H. Bundgaard, H. L. Olesen, N. H. Secher, and K. Kjeldsen. "Digoxin Treatment and Congestive Heart Failure in Light of Human Cardiac and Skeletal Muscle Digitalis Glycoside Receptor Studies." In The Sodium Pump, 832–35. Heidelberg: Steinkopff, 1994. http://dx.doi.org/10.1007/978-3-642-72511-1_152.

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Xu, Qianyi, Tanfeng Sun, Xinghao Jiang, and Yi Dong. "HEVC Double Compression Detection Based on SN-PUPM Feature." In Digital Forensics and Watermarking, 3–17. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64185-0_1.

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Conference papers on the topic "Digital Pump"

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Banister, M., and S. Vohnout. "Digital-pulse-activated cell pump." In Smart Structures and Materials, edited by Yoseph Bar-Cohen. SPIE, 2006. http://dx.doi.org/10.1117/12.658782.

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Goda, Srinivas Goud, Mukesh Kumar, Vitthal K. Khandagale, and Leons Antony Lawrence. "Positive Displacement Gear Lube Pump CFD Analysis." In SAE WCX Digital Summit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-01-0828.

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Kärnell, Samuel, and Liselott Ericson. "Analysis of a Digital Pump With Variable Speed Drive." In BATH/ASME 2022 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fpmc2022-88503.

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Abstract The interest in speed-control of hydraulic pumps is increasing with the electrification of mobile machinery. With speed-control at hand, it is tempting to use fixed pumps where variable pumps earlier have been used. However, it can be beneficial to use variable pumps in combination with variable speed since it can allow downsizing of electric machines and reduce losses. But there are downsides with conventional variable pumps, such as increased complexity, cost, and low efficiency. Digital pumps (i.e., pumps with a discrete number of displacement settings) can address these problems. This paper is focused on the performance of a digital pump, both efficiency-wise and from a dynamic perspective. Shunt-based concepts that can improve the dynamics during switching are proposed. Simulation results show that the concepts can reduce the disruption in output flow during switchings.
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Larsson, L. Viktor, Robert Lejonberg, and Liselott Ericson. "Control Optimisation of a Pump-Controlled Hydraulic System using Digital Displacement Pumps." In SICFP’21 The 17:th Scandinavian International Conference on Fluid Power. Linköping University Electronic Press, 2021. http://dx.doi.org/10.3384/ecp182p161.

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When dealing with electrification of working machines, energy-efficient operation is key to maximise the usage of the limited capacity of on-board batteries. Previous research indicate that plenty is gained by reducing component and system losses by means of design. In contrast, this paper focuses on how to maximise energy efficiency by means of control optimisation. Dynamic programming with backward-facing simulation is used to find the optimal electric motor speed trajectory for a scooptram machine equipped with pump control, using digital displacement pumps with dynamic flow sharing as enabling technology. The results show that low shaft speed is preferred to minimise drag losses from parasitic components, partly facilitated by the relatively high and operation point-independent efficiencies of the pumps and electric motor. The results indicate energy reduction of 5 - 9 %, where higher figures could be expected for other, more hydraulic-intense applications, such as excavators.
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Oliveira e Silva, Dimitri, Luiz Alexandre Barros de Carvalho, Victor Juliano De Negri, and Gierri Waltrich. "Digital Hydraulic Pump: an energy efficiency study." In 26th International Congress of Mechanical Engineering. ABCM, 2021. http://dx.doi.org/10.26678/abcm.cobem2021.cob2021-1613.

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Li, Meng. "Compressor Sizing for a Battery Electric Vehicle with Heat Pump." In SAE WCX Digital Summit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-01-0221.

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Williamson, Christopher, and Noah Manring. "A More Accurate Definition of Mechanical and Volumetric Efficiencies for Digital Displacement® Pumps." In ASME/BATH 2019 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/fpmc2019-1668.

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Abstract The apparent volumetric displacement of digital displacement pumps and motors is reduced with increasing fluid pressure. So-called pump shrinkage has been documented in previous publications, where fluid compressibility effects were assumed to affect input and output power equally. In this paper, the authors derive the torque and flow rate of an ideal digital displacement pump. It is shown that the output power shrinks slightly more than the input. The difference between input and output shrinkage is counted as a power loss according to the accepted definition of total efficiency. New equations are presented for calculating mechanical and volumetric efficiencies which are up to 2% more accurate than the previous method (which assumes equal shrinkage) and up to 5% more accurate than conventional equations (which assume no shrinkage). Compressibility effects may be even more significant depending on pump design parameters, fluid properties, flow control algorithms and operating conditions. Calculations of partial pump efficiencies require a derived displacement volume to be known. The derived displacement volume of digital displacement pumps is considered for the first time in this paper. The contributions of this work are instructive for understanding the unique characteristics of digital displacement pumps as well as check-valve type pumps in general.
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Rohman, A. F. "Quadrant Mapping Artificial Lift Concept." In Digital Technical Conference. Indonesian Petroleum Association, 2020. http://dx.doi.org/10.29118/ipa20-e-51.

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This paper outlines a concept for monitoring performance of artificial lift performance such as electrical submersible pump (ESP), hydraulic pumping unit (HPU), sucker rod pump (SRP) and progressive cavity pump (PCP), for a large number of wells. The objective is to generate simplified monitoring performance of artificial lift with a huge number of wells on one page by creating quadrant mapping consisting of two coordinates with x axis representing pump efficiency and y axis showing pump submergence. We made a four-quadrant limit by pump efficiency (50%) and submergence (200 m). Optimum wells will show on range pump efficiency above 50% and submergence below 200 m, and 3 other quadrants are classified as artificial lift problems, well potential and sizing/design problems. By using the quadrant mapping concept, we can generate performance of artificial lift for 1500++ wells in one page, and this mapping consists of four quadrants (quadrant 1, quadrant 2, quadrant 3 and quadrant 4), quadrant 1 showing wells which have artificial lift problem, quadrant 2 showing well which have potential to increased production , quadrant 3 showing the optimum wells operation and quadrant 4 showing the wells which required to re-sizing/re-design artificial lift, this mapping can be shown to Engineers, manager’s and shareholder to show overall performance and classification detailed problems to create a troubleshooting, optimization program to increased oil production, run life artificial and result in better production performance. This mapping also helps petroleum engineers to get a better field view and create priorities and program optimization based on the quadrant mapping result and classification.
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Claussen, Jonathan, Jerry Maxwell, Tai Tran, and Raghvendra Gejji. "Digital Horsepower Control of Electrohydraulic Variable Volume Pump." In International Off-Highway & Powerplant Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/921742.

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Bhooma, G., S. Kokila, K. Jayanthi, and V. Jagadeesh Kumar. "A digital instrument for venous muscle pump test." In 2011 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2011. http://dx.doi.org/10.1109/imtc.2011.5944063.

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