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1

Zhang, Ling, Yuting Wang, Yalun Liang, and Zhong Shao. "CompCertOC: Verified Compositional Compilation of Multi-threaded Programs with Shared Stacks." Proceedings of the ACM on Programming Languages 9, PLDI (2025): 651–74. https://doi.org/10.1145/3729276.

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It is a long-standing open problem to support verified compilation of multi-threaded programs compositionally when sharing of stack data between threads is allowed. Although certain solutions exist on paper, none of them is completely formalized because of the difficulty in simultaneously enabling sharing and forbidding modification of stack memory in presence of arbitrary memory operations (e.g., pointer arithmetic). We present a compiler verification framework that solves this open problem in the setting of cooperative multi-threading . To address the challenges of sharing stack data, we int
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Suo, Chun Guang, Wen Bin Zhang, and Shi Su. "Fabrication of Micro DMFC Stack Using MEMS Technology." Advanced Materials Research 690-693 (May 2013): 985–88. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.985.

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This paper presents two kinds of direct methanol fuel cell (μDMFC) stack in planar array. The silicon-based DMFC stack is designed in a flip-flop configuration using MEMS technology, and the stainless steel stack is fabricated using stamping technology. Compared to stainless steel stack, the flip-flop silicon-based stack may reduce the connection space and lower the contact resistance between the membrane electrode assembly and the plates. The electrical characterization of this μDMFC stack was carried out by tests. The experimental results showed the prototype was able to generate an open-cir
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3

Adhitama, Yoga Nur, Danang D. Cahyadi, Ikhsan Setiawan, and Agung B. S. Utomo. "Experimental study on the effect of hydraulic radius of stack on the performance of thermoacoustic prime mover with open resonator." Journal of Physics: Theories and Applications 2, no. 1 (2018): 1. http://dx.doi.org/10.20961/jphystheor-appl.v2i1.28996.

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<p class="Abstract">Thermoacoustic prime mover is a device which converts thermal energy into acoustic work. The device mainly consists of a resonator pipe, a stack (a porous medium), and two heat exchangers. Four stacks were made of a pile of stainless wire-mesh screens with various mesh numbers of #12, #14, #16, and #18, providing the effective hydraulic radius of 0.32 mm, 0.28 mm, 0.25 mm, 0.23 mm, respectively. Each stack has 4 cm length. By using the wire-mesh screens, it is easier to vary the hydraulic radius of stack than any other material. The stack is sandwiched between a hot h
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4

Chiang, Hsiu Lu, Teng Lang Feng, Ay Su, and Zhen Ming Huang. "Performance Analysis of an Open-Cathode PEM Fuel Cell Stack." Advanced Materials Research 939 (May 2014): 630–34. http://dx.doi.org/10.4028/www.scientific.net/amr.939.630.

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Hydrogen is known to be an ideal fuel that provides zero-emission energy. Fuel cells have emerged as one of the most promising candidates for fuel-efficient and emission-free vehicle power generation. PEMFC stacks require liquid cooling which can be operated in an open-cathode mode with air supplied by one or several fans, thus reducing the overall complexity of the PEMFC system. In this study, an open cathode PEMFC is used as the dependable power source and experiments are carried out to investigate the temperature characteristic of open cathode PEMFC. Combined with the using of oxidant and c
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5

Suman, Rathod, Satya Prakash Yadav, M. K. Ravikumar, Satish Patil, and A. K. Shukla. "Developing Shunt-Current Minimized Soluble-Lead-Redox-Flow-Batteries." Journal of The Electrochemical Society 168, no. 12 (2021): 120552. http://dx.doi.org/10.1149/1945-7111/ac436c.

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Shunt currents in membrane-less soluble-lead-redox-flow-batteries (SLRFB) are observed in open-circuit condition and found to depend on size of the stack, manifolds, flow rates and charge/discharge parameters. Ramifications of shunt currents on the performance of membrane-less SLRFB stacks with internal and external manifolds are reported. In the case of stacks with 3, 5 and 7-cells and internal manifold design, the charge current for the middle cell decreases by 3.3%, 6%, and 8.5%, while the discharge current increases by 2.6%, 5.5%, and 6.6%, respectively, for 3 A charge/discharge current. B
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Sasmito, Agus Pulung, Erik Birgersson, Kah Wai Lum, and Arun Mujumdar. "COMPUTATIONAL STUDY OF FREE AIRBREATHING PEM FUEL CELL: SINGLE CELL AND STACK." ASEAN Engineering Journal 2, no. 1 (2012): 78–92. http://dx.doi.org/10.11113/aej.v2.15343.

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The operation of proton exchange membrane (PEM) fuel cell for single cells and stacks with free air-breathing open-cathode manifold requires careful thermal, water and gas management for optimal performance. Here, the cathode channel design and orientation of the cell/stack in the gravitational field are essential due to presence of buoyancy-driven flow. To study the impact of these effects, a three-dimensional two-phase flow model accounting for conservation equations of mass, momentum, species and energy are solved in ambient and cell/stack with additional conservation of charge, agglomerate
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7

Hmad, Ali A., and Nihad Dukhan. "Cooling Design for PEM Fuel-Cell Stacks Employing Air and Metal Foam: Simulation and Experiment." Energies 14, no. 9 (2021): 2687. http://dx.doi.org/10.3390/en14092687.

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A new study investigating the cooling efficacy of air flow inside open-cell metal foam embedded in aluminum models of fuel-cell stacks is described. A model based on a commercial stack was simulated and tested experimentally. This stack has three proton exchange membrane (PEM) fuel cells, each having an active area of 100 cm2, with a total output power of 500 W. The state-of-the-art cooling of this stack employs water in serpentine flow channels. The new design of the current investigation replaces these channels with metal foam and replaces the actual fuel cells with aluminum plates. The cons
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8

Kostyunichev, D. N., and N. S. Otdelkin. "Assessment of the meshed screens operability to reduce dust emissions of bulk cargo from the ports open warehouses." Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 16, no. 1 (2024): 55–63. http://dx.doi.org/10.21821/2309-5180-2024-16-1-55-63.

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Currently, the coal terminals of sea and river ports have a significant negative impact on the environment through their activities. The operation of the terminals technological equipment leads to high concentrations of dust in the air and dust emissions of bulk cargo. The main sources of dust emissions and dust removal are open coal storage warehouses. Recently, dust screens have been used to combat dusting in open coal warehouses and port terminals. However, the processes of wind flows interaction with stacks of port open slads and meshed screens have not been studied enough. In this regard,
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9

Chen, Zai Ping, Feng Wang, and Chao Jia. "Research of CANopen Slave Node Based on Embedded System." Advanced Materials Research 219-220 (March 2011): 629–32. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.629.

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As a typical application layer protocol of CAN-bus, CANopen has been widely accepted in many fields. In this paper, CanFestival, which is a kind of open-source CANopen stack, is briefly introduced. The implementation scheme of CANopen slave node is proposed, which is based on a kind of AVR microcontroller-AT90CAN128 and open-source CANopen stack-CanFestival. In this paper the hardware design of slave node and the open-source protocol stack transplant have completed successfully. The debugging experiment of this slave node communication has been carried out, and the correctness of the scheme of
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10

Zhang, Shidong, Roland Peters, Nicolas Kruse, R. Deja, Felix Kunz, and Rüdiger-A. Eichel. "Investigation of Heat Distribution in SOC-Stacks By Multiphysical Modeling." ECS Meeting Abstracts MA2022-02, no. 50 (2022): 2556. http://dx.doi.org/10.1149/ma2022-02502556mtgabs.

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In the scope of clean energy, the solid oxide cell (SOC) offers a promising solution for different applications. The electrolyte, the air electrode and the fuel electrode of an SOC are typically based on yttrium stabilized zirconia (YSZ), lanthanum strontium cobaltite (LSC) or manganite (LSM) and nickel cermet, respectively. It typically operates in a temperature range of 600 – 1000 oC and can be operated as a fuel cell (SOFC), an electrolysis cell (SOEC) or reversibly (rSOC). An SOC-stacks consists of several repeating units, each of which is assembled by various components. Among them, the s
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11

Bultel, Yann, Corine BAS, Florence Dubelley, Fabrice Micoud, Sébastien Rosini, and Christine Nayoze-Coynel. "Anode Defects’ Propagation in Polymer Electrolyte Membrane Fuel Cells Stack." ECS Meeting Abstracts MA2023-02, no. 38 (2023): 1835. http://dx.doi.org/10.1149/ma2023-02381835mtgabs.

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Reliability and durability are key considerations to successfully deploy Proton Exchange Membrane Fuel Cells (PEMFCs). Defects induced by manufacturing processes and fuel cell operating conditions may shorten the lifetime of PEMFC due to membrane electrode assembly (MEA) components degradations. If the degradation mechanisms occurring along ageing are now well-known, the propagation of these defects to other materials or to other locations in the stack was poorly investigated in the literature. Recently, we investigated a defect-propagation in MEA via accelerated stress tests combining load an
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12

Hellmann, Eugen. "On arithmetic families of filtered -modules and crystalline representations." Journal of the Institute of Mathematics of Jussieu 12, no. 4 (2012): 677–726. http://dx.doi.org/10.1017/s1474748012000813.

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AbstractWe consider stacks of filtered$\varphi $-modules over rigid analytic spaces and adic spaces. We show that these modules parameterize$p$-adic Galois representations of the absolute Galois group of a$p$-adic field with varying coefficients over an open substack containing all classical points. Further, we study a period morphism (defined by Pappas and Rapoport) from a stack parameterizing integral data, and determine the image of this morphism.
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13

Dhathathreyan, K. S., N. Rajalakshmi, K. Jayakumar, and S. Pandian. "Forced Air-Breathing PEMFC Stacks." International Journal of Electrochemistry 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/216494.

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Air-breathing fuel cells have a great potential as power sources for various electronic devices. They differ from conventional fuel cells in which the cells take up oxygen from ambient air by active or passive methods. The air flow occurs through the channels due to concentration and temperature gradient between the cell and the ambient conditions. However developing a stack is very difficult as the individual cell performance may not be uniform. In order to make such a system more realistic, an open-cathode forced air-breathing stacks were developed by making appropriate channel dimensions fo
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14

Auriemma, Fabio, and Yaroslav Holovenko. "Use of Selective Laser Melting for Manufacturing the Porous Stack of a Thermoacoustic Engine." Key Engineering Materials 799 (April 2019): 246–51. http://dx.doi.org/10.4028/www.scientific.net/kem.799.246.

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In this study the authors investigate the possibility of using Selective Laser Melting (SLM) to manufacture the porous element (stack) of a thermoacoustic engine. Two stacks, provided with different internal geometries but with the same hydraulic radii, have been produced: one with parallel plates and one with a new, oblique pin array configuration. The pin array stacks provide smaller amount of viscous losses during the thermal to acoustic power conversion when working fluids with Pr < 1, e.g. air. Furthermore, the oblique configuration is designed to reduce the heat transmission from the
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15

N. Luta, Doudou, and Atanda K. Raji. "Comparing Fuzzy rule-based and fractional Open Circuit Voltage MPPT techniques in a fuel cell stack." International Journal of Engineering & Technology 8, no. 4 (2019): 402. http://dx.doi.org/10.14419/ijet.v8i4.29343.

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The concept of power tracking was at first applied to renewable power systems and especially those based on solar and wind to extract as much power as possible from them. Both types of power systems operate on the principle of converting either solar or wind into electricity. Thus, their output power is direct dependent on the solar radiation for solar power systems and on the wind speed for wind generators. To maintain efficient system operations, the output power of these power systems is optimized through maximum power tracking techniques. In the similar vein, fuel cell stacks display nonli
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16

Borges, Renata Coura, Letícia Mombrini Marques, Cláudio Fernando Mahler, and Alfredo Victor Bellido Bernedo. "Determination of the concentration of Ce, La, Sm and Eu in a phosphogypsum stack, in Imbituba city, Santa Catarina, Brazil." Eclética Química Journal 43, no. 3 (2018): 37. http://dx.doi.org/10.26850/1678-4618eqj.v43.3.2018.p37-44.

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Phosphate fertilizer industry produces phosphoric acid from phosphate rocks, and as a byproduct, it produces phosphogypsum, also known as agricultural gypsum. This material was stock an open-air stacks near the producing units. In order to determine levels of rare-earth elements in phosphogypsum stacks, located in Imbituba, Brazil. Samples of 1000 grams of phosphogypsum were collected in nine different points in stack 1. The concentration of rare-earth elements was determined through neutron activation analysis and results indicate significant values of rare earth elements in the phosphogypsum
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17

Prakash, Hari. "Research Paper on Social Media Application Using MERN Stack." International Journal for Research in Applied Science and Engineering Technology 12, no. 5 (2024): 1918–22. http://dx.doi.org/10.22214/ijraset.2024.61983.

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Abstract: With rapid increase in the technology it is very essential to understand about emerging computing technology in the world. This research paper will highlight the popular MERN stack which includes four open source technologies i.e MERN ( MongoDB, Express, ReactJs, NodeJs). The demand for skilled MERN stack developers is skyrocketing. Companies across industries are recognizing the power and flexibility of this technology stack and are constantly seeking talented individuals who can bring their ideas to life using MERN. We will be discussing MERN Stack Application Social Media App
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18

Pluta, Janusz, and Marek Sibielak. "Testing of Throttle Valve Prototype Controlled by Piezoelectric Stack." Solid State Phenomena 177 (July 2011): 47–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.177.47.

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This paper aims to present the results of the testing a single-stage electrically actuated throttle valve, in which a piezoelectric stack was used for adjustment of the flow section area of the throttle aperture. The valve prototype was built based on a proprietary design, using the components of a standard manufactured overflow valve. The complete valve was designed on the basis of the results of simulation tests performed on a mathematical model. The constitutive equations presented herein, describing all critical phenomena and influences present in the component, were applied for the modell
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19

Ryoo, Won Sun, and Jinsu Yoo. "Study on Key Parameters of Reverse Electrodialysis (RED) Cell-Stack Performance Based on Equivalent Circuit Model." ECS Meeting Abstracts MA2022-02, no. 50 (2022): 2550. http://dx.doi.org/10.1149/ma2022-02502550mtgabs.

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Reverse electrodialysis (RED) is a direct process to convert salinity-gradient energy to electricity utilizing ion exchange membranes. The current density of a unit cell based on normal area of ion exchange membrane is well related to the membrane resistances, channel structure, flowrates and salinities of dilute and concentrate water feed. Alternate stacking of cation and anion exchange membranes enables directional control of ion migration relaxing the concentration gradient, and it increases the voltage in proportion to stack number. High salinity of concentrate water often causes parasitic
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20

T, Abirami. "Telco Data Analytics using Open-Source Data Pipeline: Detailed Architecture and Technology Stack." International Journal for Research in Applied Science and Engineering Technology 9, no. 10 (2021): 1717–25. http://dx.doi.org/10.22214/ijraset.2021.38644.

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Abstract: Open-source technology has influenced data analytics at each step from data storage to data analysis, and visualization. Open source for telco big data analytics enables sharp insights by enhancing problem discoverability and solution feasibility. This research paper talks about different technology stacks using open source for telco big data analytics that are used to deploy various tools including data collection, data storage, data processing, data analysis, and data visualization. This open source pipeline micro-services architecture built with modular technology stack and orches
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21

Chen, Fengxiang, Liming Zhang, and Jieran Jiao. "Modelling of Humidity Dynamics for Open-Cathode Proton Exchange Membrane Fuel Cell." World Electric Vehicle Journal 12, no. 3 (2021): 106. http://dx.doi.org/10.3390/wevj12030106.

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The durability and output performance of a fuel cell is highly influenced by the internal humidity, while in most developed models of open-cathode proton exchange membrane fuel cells (OC-PEMFC) the internal water content is viewed as a fixed value. Based on mass and energy conservation law, mass transport theory and electrochemistry principles, the model of humidity dynamics for OC-PEMFC is established in Simulink® environment, including the electrochemical model, mass flow model and thermal model. In the mass flow model, the water retention property and oxygen transfer characteristics of the
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Zimmermann, Lukas, Nidhal Mars, Manuel Schappacher, and Axel Sikora. "Development of Thread-compatible Open Source Stack." Journal of Physics: Conference Series 870 (July 2017): 012001. http://dx.doi.org/10.1088/1742-6596/870/1/012001.

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Cazzolato, Benjamin, Orddom Leav, and Carl Howard. "When less is more: Reducing environmental noise from open cycle gas turbines with acoustically transparent stacks." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A103. http://dx.doi.org/10.1121/10.0022936.

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Sound radiation from large open cycle gas turbine power stations is strongly refracted by high temperature and velocity gradients in the near field of the exhaust stack outlet. Recent research by the authors has shown that in the presence of a cross-flow, the exhaust plume bends downwind and in doing so leads to significant increases in far-field sound pressure levels of up to 10dB compared to levels predicted from spherical spreading. This paper is the second in a series that explores a unique “acoustically transparent silencer,” which limits sound refraction consequently reducing downwind SP
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Ma, Yu Ting, Liang Huang, and Wei Wei Shao. "New Open Loop Control Improves Linearity of Piezoelectric Actuators." Advanced Materials Research 211-212 (February 2011): 520–24. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.520.

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The piezoelectric material is subject to hysteresis and creep resulting in a nonlinear relationship between the applied voltage and the output mechanical displacement. An approach for compensation of both the hysteresis and creep characteristics of a piezoelectric stack actuator is proposed by utilizing a switched capacitor charge pump. The new charge pump transfers the same amount of charges to the piezoelectric actuator quantitatively, and the actuator will be excited to change its length with constant step. Compared with voltage driving mode, experiments show that both creep and hysteresis
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25

Mao, Yiwei, Christopher H. Betters, Bradley Evans, et al. "OpenHSI: A Complete Open-Source Hyperspectral Imaging Solution for Everyone." Remote Sensing 14, no. 9 (2022): 2244. http://dx.doi.org/10.3390/rs14092244.

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OpenHSI is an initiative to lower the barriers of entry and bring compact pushbroom hyperspectral imaging spectrometers to a wider audience. We present an open-source optical design that can be replicated with readily available commercial-off-the-shelf components, and an open-source software platform openhsi that simplifies the process of capturing calibrated hyperspectral datacubes. Some of the features that the software stack provides include: an ISO 19115-2 metadata editor, wavelength calibration, a fast smile correction method, radiance conversion, atmospheric correction using 6SV (an open
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26

Bouwman, Peter Jaime. "(Invited) Industrialization of PEM Electrolyzer Stack Platforms: Driving Lab-Scale Innovation to Multi-MW Implementation." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1866. http://dx.doi.org/10.1149/ma2024-01341866mtgabs.

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The Hydrogen production plays important role as part of energy transition strategy in Germany as well as in visions and subsequent policy of European Green Deal activities. Schaeffler [1] is driving further technological development with strong financial backing of European (CHP) and German funding (H2Giga). PEM water electrolysis is regarded as powerful technology, bringing advantages of limited installation footprint, broad range of operating conditions, especially in terms of dynamic load range and featuring high efficiency between 75-90% (based on HHV) [2]. Minimizing the Levelized Cost of
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27

Powell, M. A., R. A. Eaton, and J. F. Webber. "The role of micro-arthropods in the defacement of sawn lumberby sapstain and mould fungi." Canadian Journal of Forest Research 25, no. 7 (1995): 1148–56. http://dx.doi.org/10.1139/x95-127.

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Fungal sap stain, mould, and basidiomycete defacement of boards sawn from the sapwood of freshly felled logs of Corsican pine (Pinusnigra var. maritima (Aiton) Melville) was assessed during a 14-week field trial at a sawmill in southern England. The boards were placed in nonstickered stacks to reduce moisture loss, and stacks were constructed in a nest arrangement to allow experimental untreated board samples to be positioned centrally in each stack. The experimental samples were placed in plastic tanks, and the open tank faces were left either uncovered or were covered with a fine-mesh nylon
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28

Liu, Zhi, Tingting Sun, and Fuqiang Bai. "Numerical Study on Effect of Flow Field Configuration on Air-Breathing Proton Exchange Membrane Fuel Stacks." Energies 17, no. 11 (2024): 2501. http://dx.doi.org/10.3390/en17112501.

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Air-breathing proton exchange membrane fuel cells (PEMFCs) show enormous potential in small and portable applications because of their brief construction time without the need for gas supply, humidification and cooling devices. In the current work, a 3D multiphase model of single air-breathing PEMFCs is developed by considering the contact resistance between the gas diffusion layer and bipolar plate and the anisotropic thermal conduction and electric conductive in the through-plane and in-plane directions. The 3D model presents good grid independence and agreement with the experimental polariz
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Iosifescu Enescu, Ionuț, David Hanimann, Dominik Haas-Artho, et al. "Open Data – Open Software: Implementing Geospatial Requirements in EnviDat with an Open-Source Stack." Abstracts of the ICA 3 (December 13, 2021): 1. http://dx.doi.org/10.5194/ica-abs-3-120-2021.

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de Wild, Jessica, Gizem Birant, Guy Brammertz, Marc Meuris, Jef Poortmans, and Bart Vermang. "Ultrathin Cu(In,Ga)Se2 Solar Cells with Ag/AlOx Passivating Back Reflector." Energies 14, no. 14 (2021): 4268. http://dx.doi.org/10.3390/en14144268.

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Ultrathin Cu(In,Ga)Se2 (CIGS) absorber layers of 550 nm were grown on Ag/AlOx stacks. The addition of the stack resulted in solar cells with improved fill factor, open circuit voltage and short circuit current density. The efficiency was increased from 7% to almost 12%. Photoluminescence (PL) and time resolved PL were improved, which was attributed to the passivating properties of AlOx. A current increase of almost 2 mA/cm2 was measured, due to increased light scattering and surface roughness. With time of flight—secondary ion mass spectroscopy, the elemental profiles were measured. It was fou
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Ajdari, Mohammadamin, Patrick Raaf, Mostafa Kishani, Reza Salkhordeh, Hossein Asadi, and André Brinkmann. "An Enterprise-Grade Open-Source Data Reduction Architecture for All-Flash Storage Systems." ACM SIGMETRICS Performance Evaluation Review 50, no. 1 (2022): 59–60. http://dx.doi.org/10.1145/3547353.3530963.

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Data reduction technologies have proven their effectiveness to decrease the ever-growing demands on storage system capacities, but also introduce new complexity in the system I/O stack that can easily invalidate well-known best practices. In this paper, we conduct an extensive set of experiments on an enterprise all-flash storage (AFS) system equipped with an open-source data reduction module, i.e., RedHat VDO, and reveal novel observations on the performance gap between the state-of-the-art and the optimal AFS stack with integrated data reduction. We then offer cross-layer optimizations to en
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32

Bagchi, Mayukh. "Conceptualising a Library Chatbot using Open Source Conversational Artificial Intelligence." DESIDOC Journal of Library & Information Technology 40, no. 06 (2020): 329–33. http://dx.doi.org/10.14429/djlit.40.06.15611.

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Conversational software, or chatbots in popular parlance, has been in vogue amongst organizations for a few decades now. In sync with the trend, various libraries and knowledge resource centres have also adopted them within their technological fold, with an aim to provide improved services to patrons. The only bottleneck towards such implementation has been the dearth of open source conversational software platforms. The purpose of the paper is to conceptualize a library chatbot using a recently developed, artificial intelligence-powered open source conversational software platform named Rasa
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Bawane, Mohanish. "A Review on Technologies used in MERN stack." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (2022): 479–88. http://dx.doi.org/10.22214/ijraset.2022.39868.

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Abstract: MERN stack is one of the well known web stack that has acquired significance over other stack. This is a direct result of its UI delivering and execution, Cost-Adequacy, Open Source and is not difficult to switch among customer and server. Its essential target is to improve the general exhibition of the application. This stack, as well as utilizing superior execution and tweaked advances, considers web applications and programming to be grown rapidly. MERN stack is an assortment of strong and amazing innovations used to foster adaptable expert web applications, containing front-end,
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34

Nikolić, Dragan D. "Parallelisation of equation-based simulation programs on heterogeneous computing systems." PeerJ Computer Science 4 (August 13, 2018): e160. http://dx.doi.org/10.7717/peerj-cs.160.

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Numerical solutions of equation-based simulations require computationally intensive tasks such as evaluation of model equations, linear algebra operations and solution of systems of linear equations. The focus in this work is on parallel evaluation of model equations on shared memory systems such as general purpose processors (multi-core CPUs and manycore devices), streaming processors (Graphics Processing Units and Field Programmable Gate Arrays) and heterogeneous systems. The current approaches for evaluation of model equations are reviewed and their capabilities and shortcomings analysed. S
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Bolag, Altan, Hironobu Hayashi, Pierre Charbonnaz, Naomi Sakai, and Stefan Matile. "Self-Organizing Surface-Initiated Polymerization of Multicomponent Photosystems: Stack Exchange with Fullerenes." ChemistryOpen 2, no. 2 (2013): 55–57. http://dx.doi.org/10.1002/open.201300004.

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Sasmito, A. P., E. Birgersson, K. W. Lum, and A. S. Mujumdar. "Fan selection and stack design for open-cathode polymer electrolyte fuel cell stacks." Renewable Energy 37, no. 1 (2012): 325–32. http://dx.doi.org/10.1016/j.renene.2011.06.037.

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Ali, Omer, Mohamad Khairi Ishak, Muhammad Kamran Liaquat Bhatti, Imran Khan, and Ki-Il Kim. "A Comprehensive Review of Internet of Things: Technology Stack, Middlewares, and Fog/Edge Computing Interface." Sensors 22, no. 3 (2022): 995. http://dx.doi.org/10.3390/s22030995.

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The Internet of Things (IoT) is an extensive network of heterogeneous devices that provides an array of innovative applications and services. IoT networks enable the integration of data and services to seamlessly interconnect the cyber and physical systems. However, the heterogeneity of devices, underlying technologies and lack of standardization pose critical challenges in this domain. On account of these challenges, this research article aims to provide a comprehensive overview of the enabling technologies and standards that build up the IoT technology stack. First, a layered architecture ap
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Wang, Zhaoyu, Pingchuan Ma, Huaijin Wang, and Shuai Wang. "PP-CSA: Practical Privacy-Preserving Software Call Stack Analysis." Proceedings of the ACM on Programming Languages 8, OOPSLA1 (2024): 1264–93. http://dx.doi.org/10.1145/3649856.

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Software call stack is a sequence of function calls that are executed during the runtime of a software program. Software call stack analysis (CSA) is widely used in software engineering to analyze the runtime behavior of software, which can be used to optimize the software performance, identify bugs, and profile the software. Despite the benefits of CSA, it has recently come under scrutiny due to concerns about privacy. To date, software is often deployed at user-side devices like mobile phones and smart watches. The collected call stacks may thus contain privacy-sensitive information, such as
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Zhang, Ruiyu, Yuqing Wang, Jixin Shi, and Yixiang Shi. "Design and Fabrication of an Easily Assembled Anode Supported Microtubular SOFC Stack." ECS Transactions 111, no. 6 (2023): 851–57. http://dx.doi.org/10.1149/11106.0851ecst.

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Anode-supported micro-tubular solid oxide fuel cell has shown many advantages which make it suitable for portable devices. In this study, we developed a micro-tubular SOFC stack and module using a metallic current collector and interconnector which enabling pluggable modular design pattern. In order to ensure the sealing performance, we adopted the low-temperature sealing method and the temperature at the sealing position is under 130℃ while the stack is operated at 750℃.The stack was made of 8 micro-tubular cells, which were connected in series and parallel, in a 2×4 array. The open circuit v
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Chen, Yu Feng, Chuan Qi Tan, Feng Xia Li, and Qing Yi Zhang. "A Novel and Fast Method for Content-Based Image Retrieval via Stack-Triangles Geometrics Histogram." Advanced Materials Research 341-342 (September 2011): 785–89. http://dx.doi.org/10.4028/www.scientific.net/amr.341-342.785.

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In this paper, a novel method is proposed for solving an open problem of shape matching in content-based image retrieval. Our method regards the stack-triangles geometrics histogram to be the feature of an image, the correlation of two images was decided by the compare result of their stack-triangles geometrics histograms. First of all, these methods extract the key contour fragments of an image, so that a shape can be presented as many key contour fragments in this way. In addition, we derivation stack triangles of a shape by the key contour fragments we get it before. Then, we can get the st
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Paredes-Baños, Ana Belén, Angel Molina-Garcia, Antonio Mateo-Aroca, and José Javier López-Cascales. "Scalable and Multi-Channel Real-Time Low Cost Monitoring System for PEM Electrolyzers Based on IoT Applications." Electronics 13, no. 2 (2024): 296. http://dx.doi.org/10.3390/electronics13020296.

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This paper discusses and evaluates a novel multi-channel real-time architecture aimed at monitoring a Proton Exchange Membrane (PEM) electrolyzer, both at the individual cell and stack levels. The proposed solution includes two primary subsystems: a hardware subsystem dedicated to data acquisition (DAQ) and a software subsystem focused on monitoring purposes. The DAQ subsystem utilizes an Arduino platform, being an affordable and open-source solution. The real-time monitoring data can be encoded in JSON format, widely used as a light-weight inter-exchange data format between a variety of IoT a
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Yu, Tingchao, Qiang Ding, Luwen Wang, David Z. Zhu, and Yu Shao. "Experimental study on air pressure variation in a horizontal pipe of single-stack drainage system." Water Science and Technology 79, no. 1 (2019): 114–25. http://dx.doi.org/10.2166/wst.2019.014.

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Abstract The water trap seal under the sanitary appliances is the primary defense against the ingress of foul gases and odors. However, research on air pressure variation in a horizontal pipe of a single-stack drainage system is very limited. Thus a physical model study was conducted to investigate the air pressure variation in a horizontal pipe. Four parameters were studied that affect the pressure variation; that is, water flow rate, inlet height, ventilation condition and outlet condition. When the top of the vertical drainage stack and the outlet were fully open to the atmosphere, the flow
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Yang, Guang You, Si Jian Zhu, Rui Quan, and Zhi Yan Ma. "Research on Wireless Sensor Networks Based on Open Source System." Key Engineering Materials 621 (August 2014): 712–18. http://dx.doi.org/10.4028/www.scientific.net/kem.621.712.

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As the key technologies such as wireless communication, sensor continues to mature, wireless sensor networks has become a domestic and foreign focus of research in the field of wireless networks. The main work of the thesis is to implement ZigBee wireless sensor networking, using open source protocol FreakZ On the base of existing hardware. WSN hardware node consists of 32-bit microprocessor STM32F102CB based on ARM Cortex-M3 kernel and AT86RF212 radio transceiver; the software platform uses a lightweight multi-tasking operating system Contiki and open source protocol stack called FreakZ follo
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Adunyah, Adwoa S., Harshal A. Gawli, and Carrie M. Hall. "A Control-Oriented Model for Predicting Variations in Membrane Water Content of an Open-Cathode Proton Exchange Membrane Fuel Cell." Energies 17, no. 4 (2024): 831. http://dx.doi.org/10.3390/en17040831.

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Proton exchange membrane (PEM) fuel cells have emerged as a viable alternative energy production source for stationary and transportation applications. Reliable and sustainable fuel cell operation requires effective water management. Membrane water content can vary along the stack during transients which can lead to losses in fuel cell performance. To control these variations, a model that predicts the internal humidity dynamics of the stack is needed. In this study, a control-oriented model for predicting membrane water content variation was developed and implemented in MATLAB/Simulink. A lum
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Mohammed, Lawal Toro. "Understanding the Consistency of Stack Overflow Code: A Cautionary Suggestion." LC International Journal of STEM (ISSN: 2708-7123) 2, no. 1 (2021): 40–47. https://doi.org/10.5281/zenodo.5149852.

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Community Question and Answer platforms (CQA) use the power of online groups to solve or gain information about problems. Since these websites contain valuable information, high-quality data must be given on these pages, so that consumers may trust the data. Given the widespread usage of data in all parts of contemporary society, this is particularly important for software creation. Stack Overflow is CQA 's leading programmer platform, with a community of over 10 million contributors.        Although research supports Stack Overflow's popularity, doubts have be
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Gupta, Ashish. "Revolutionizing Web Development: The Power of the MERN Stack." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–9. https://doi.org/10.55041/ijsrem46471.

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Abstract— MERN stack is an open-source, full-stack JavaScript library employed in the creation of contemporary web applications, It combines MongoDB, Express.js, React, and Node.js to deliver a scalable and stable solution to develop dynamic, data-driven websites and applications. First which was developed in the early 2010s, the MERN stack acquired widespread popularity because of its effectiveness and versatility. MERN uses JavaScript client-side and server-side development, which streamlines the development process by same language throughout the entire application. MongoDB is a NOSQL datab
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Kieltyka, Mackenzie R., Julian Singell, Jabari Allen, et al. "PGM-Free Catalyst Modification for Air-Breathing Stacks." ECS Meeting Abstracts MA2024-02, no. 46 (2024): 3232. https://doi.org/10.1149/ma2024-02463232mtgabs.

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The operation and viability of an air-breathing fuel cell stack will heavily depend on the cleanest available local air, unless its cathode is tolerant to impurities. Previous research on the impact of air impurities showed deleterious impacts on overall performance utilizing platinum catalysts. To date, fuel cell research findings using air impurities employing non-platinum catalysts, platinum group metal-free (PGM-free), is scarce. To test the viability of a PGM-free stack, a miniature four-cell stack with PGM-free catalyst was assembled to compare with results from a standard eight-cell sta
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Wu, Xue Qin, Lu Lu Li, and Hong Jun Chen. "Realization of CAN Based on Automotive Open System Architecture." Applied Mechanics and Materials 347-350 (August 2013): 1625–29. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1625.

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AUTOSAR will make the software better portable and expansible, will shorten the development cycle and reduce the cost of development. Because of AUTOSARs module idea, this paper designs the communication stack basing on Controller Area Network (CAN), and describes the critical realization of CAN driver, CAN interface, CAN transport layer, communication and diagnostic management. So it can meet the requirement of automotives control network.
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Polak, Adam. "Simulation of Fuzzy Control of Oxygen Flow in PEM Fuel Cells." Energies 13, no. 9 (2020): 2372. http://dx.doi.org/10.3390/en13092372.

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This paper presents an alternative approach to the flow control of an oxidizer in a proton exchange membrane (PEM) fuel cell system in which pure oxygen is the gas supplied to the cathode channel of the stack. The proposed oxygen flow control is implemented based on information about the current drawn from the fuel cell stack and the voltage variation in the stack. This information and a fuzzy-logic-based control algorithm are used to increase oxygen utilization in a PEM fuel cell system without a recirculation system in relation to the control, in which the oxygen flow rate is determined only
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Talla, Vamsi, Joshua Smith, and Shyamnath Gollakota. "Advances and Open Problems in Backscatter Networking." GetMobile: Mobile Computing and Communications 24, no. 4 (2021): 32–38. http://dx.doi.org/10.1145/3457356.3457367.

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Despite significant research in backscatter communication over the past decade, key technical open problems remain underexplored. Here, we first systematically lay out the design space for backscatter networking and identify applications that make backscatter an attractive communication primitive. We then identify 10 research problems that remain to be solved in backscatter networking. These open problems span across the network stack to include circuits, embedded systems, physical layer, MAC and network protocols as well as applications. We believe that addressing these problems can help deli
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