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Journal articles on the topic 'Processeurs many-Core'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Kamran, Arezoo, and Zainalabedin Navabi. "Self-Healing Many-Core Architecture: Analysis and Evaluation." VLSI Design 2016 (July 25, 2016): 1–17. http://dx.doi.org/10.1155/2016/9767139.

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More pronounced aging effects, more frequent early-life failures, and incomplete testing and verification processes due to time-to-market pressure in new fabrication technologies impose reliability challenges on forthcoming systems. A promising solution to these reliability challenges is self-test and self-reconfiguration with no or limited external control. In this work a scalable self-test mechanism for periodic online testing of many-core processor has been proposed. This test mechanism facilitates autonomous detection and omission of faulty cores and makes graceful degradation of the many-

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2

Caimi, Luciano Lores, Rafael Faccenda, and Fernando Gehm Moraes. "A Survey on Security Mechanisms for NoC-based Many-Core SoCs." Journal of Integrated Circuits and Systems 16, no. 2 (2021): 1–15. http://dx.doi.org/10.29292/jics.v16i2.485.

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The adoption of many-cores systems introduces the concern for data protection as a critical design requirement due to the resource sharing and the simultaneous executions of several applications on the platform. A secure application that processes sensitive data may have its security harmed by a malicious process. The literature contains several proposals to protect many-cores against attacks, focusing on the protection of the application execution or the access to shared memories. However, there is a gap to be fulfilled: a solution covering the entire application lifetime, including its admis

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Moriam, Sadia, Elke Franz, Paul Walther, Akash Kumar, Thorsten Strufe, and Gerhard Fettweis. "Efficient Communication Protection of Many-Core Systems against Active Attackers." Electronics 10, no. 3 (2021): 238. http://dx.doi.org/10.3390/electronics10030238.

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Many-core system-on-chips, together with their established communication infrastructures, Networks-on-Chip (NoC), are growing in complexity, which encourages the integration of third-party components to simplify and accelerate production processes. However, this also adversely exposes the surface for attacks through the injection of hardware Trojans. This work addresses active attacks on NoCs and focuses on the integrity and availability of transmitted data. In particular, we consider the modification and/or dropping of data during transmission as active attacks that might be performed by mali

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Aktulga, Hasan Metin, Chris Knight, Paul Coffman, Kurt A. O’Hearn, Tzu-Ray Shan, and Wei Jiang. "Optimizing the performance of reactive molecular dynamics simulations for many-core architectures." International Journal of High Performance Computing Applications 33, no. 2 (2018): 304–21. http://dx.doi.org/10.1177/1094342017746221.

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Reactive molecular dynamics simulations are computationally demanding. Reaching spatial and temporal scales where interesting scientific phenomena can be observed requires efficient and scalable implementations on modern hardware. In this article, we focus on optimizing the performance of the widely used LAMMPS/ReaxC package for many-core architectures. As hybrid parallelism allows better leverage of the increasing on-node parallelism, we adopt thread parallelism in the construction of bonded and nonbonded lists and in the computation of complex ReaxFF interactions. To mitigate the I/O overhea

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Zhang, Shaoqing, Haohuan Fu, Lixin Wu, et al. "Optimizing high-resolution Community Earth System Model on a heterogeneous many-core supercomputing platform." Geoscientific Model Development 13, no. 10 (2020): 4809–29. http://dx.doi.org/10.5194/gmd-13-4809-2020.

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Abstract. With semiconductor technology gradually approaching its physical and thermal limits, recent supercomputers have adopted major architectural changes to continue increasing the performance through more power-efficient heterogeneous many-core systems. Examples include Sunway TaihuLight that has four management processing elements (MPEs) and 256 computing processing elements (CPEs) inside one processor and Summit that has two central processing units (CPUs) and six graphics processing units (GPUs) inside one node. Meanwhile, current high-resolution Earth system models that desperately re

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Higashi, Akira, and Yoshiyuki Fujii. "Studies on microparticles contained in medium-depth ice cores retrieved from east Dronning Maud Land, Antarctica." Annals of Glaciology 20 (1994): 73–79. http://dx.doi.org/10.1017/s0260305500016268.

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SEM observations of microparticles in ice-core samples retrieved by the Japanese Antarctic Research Expedition in east Dronning Maud Land have been carried out since 1987. Morphology and elemental composition by EDS of many microparticles taken from various depths of the 700 m Mizuho ice core were compared with each other and with those of stratospheric microparticles in NASA Cosmic Dust Catalogs and microparticles hitherto found in deep ice cores retrieved in Antarctica. Number concentrations of microparticles were measured on all samples throughout the 700 m Mizuho ice core. Remarkable fluct

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Tandong, Yao, and L. G. Thompson. "Trends and features of climatic changes in the past 5000 years recorded by the Dunde ice core." Annals of Glaciology 16 (1992): 21–24. http://dx.doi.org/10.1017/s0260305500004766.

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Α δ18O record from Dunde Ice Cap, located in the Qilian mountains on the northeastern margin of the Tibetan Plateau, has been analyzed and interpreted. With an ice temperature of –7.3°C at a depth of 10 m and –4.7°C at the bottom of the ice cap, and an accumulation rate of 400 mm a−1, the Dunde core has provided interesting results. The upper part of this core, core D-l, can be easily dated by a combination of δ18O, microparticle concentration and conductivity. It can also be dated as far back as 4550 BP by counting dust layers in ice. Based on the time scale established by the above methods a

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Jiankan, Han, Xie Zichu, Dai Fengnian, and Zhang Wanchang. "Volcanic eruptions recorded in an ice core from Collins Ice Cap, King George Island, Antarctica." Annals of Glaciology 29 (1999): 121–25. http://dx.doi.org/10.3189/172756499781821139.

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AbstractCareful mineral and structural analyses have revealed the characteristics of volcanic ash in the nine horizons of an 80.2 m ice core from Collins Ice Cap, King George Island, Antarctica.Under the assumption of steady state, the Dansgaard-Johnsen flow model was employed to date the core. The volcanic eruptive sequence established for the South Shetland Islands region since AD 1650 shows seven volcanic eruptive cycles during the past 340 years covered by the ice core. It seems that during the period 1875-1925 there was frequent volcanic activity, with perhaps many eruptions at Deception

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9

Lee, Hyunju, and Doohwan Lee. "Synthesis Chemistry and Properties of Ni Catalysts Fabricated on SiC@Al2O3 Core-Shell Microstructure for Methane Steam Reforming." Catalysts 10, no. 4 (2020): 391. http://dx.doi.org/10.3390/catal10040391.

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Heat and mass transport properties of heterogeneous catalysts have significant effects on their overall performance in many industrial chemical reaction processes. In this work, a new catalyst micro-architecture consisting of a highly thermally conductive SiC core with a high-surface-area metal-oxide shell is prepared through a charge-interaction-induced heterogeneous hydrothermal construction of SiC@NiAl-LDH core-shell microstructures. Calcination and reduction of the SiC@NiAl-LDH core-shell results in the formation of Ni nanoparticles (NPs) dispersed on SiC@Al2O3, referred to as Ni/SiC@Al2O3

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10

Kann, Michael, Beate Sodeik, Angelika Vlachou, Wolfram H. Gerlich, and Ari Helenius. "Phosphorylation-dependent Binding of Hepatitis B Virus Core Particles to the Nuclear Pore Complex." Journal of Cell Biology 145, no. 1 (1999): 45–55. http://dx.doi.org/10.1083/jcb.145.1.45.

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Although many viruses replicate in the nucleus, little is known about the processes involved in the nuclear import of viral genomes. We show here that in vitro generated core particles of human hepatitis B virus bind to nuclear pore complexes (NPCs) in digitonin-permeabilized mammalian cells. This only occurred if the cores contained phosphorylated core proteins. Binding was inhibited by wheat germ agglutinin, by antinuclear pore complex antibodies, and by peptides corresponding either to classical nuclear localization signals (NLS) or to COOH-terminal sequences of the core protein. Binding wa

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11

Koerner, Roy M. "Some comments on climatic reconstructions from ice cores drilled in areas of high melt." Journal of Glaciology 43, no. 143 (1997): 90–97. http://dx.doi.org/10.1017/s0022143000002847.

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AbstractPoor consideration has been given in many Arctic circum-polar ice-core studies to the effect of summer snow melt on chemistry, stable-isotope concentrations and time-scales. Many of these corps are drilled close to the firn line where melt is intense. Some come from below the firn line where accumulation is solely in the form of super-imposed ice. In all cases, seasonal signals are reduced or removed and, in some, time gaps develop during periods of excessive melting which situate the drill site in the ablation zone. Consequently, cross correlations of assumed synchronous events among

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12

Sun, Christine (Qin), Dong Zhang, Larry C. Wadsworth, and Mac McLean. "Development of Innovative Cotton-Surfaced Nonwoven Laminates." Journal of Industrial Textiles 31, no. 3 (2002): 179–88. http://dx.doi.org/10.1106/152808302026111.

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Cotton-based nonwovens have been developed at Textiles and Nonwovens Development Center (TANDEC), The University of Tennessee, with the cotton fibers on the surface or in the core layer laminated with meltblown (MB) and/or spunbonded (SB) webs. Both Cotton-Surfaced Nonwovens (CSN) and Cotton-Core Nonwovens (CCN) have excellent soft hand, breathability, absorbency, and tensile properties making them ideal for many medical applications such as isolation gowns, hospital drapes and gowns, shoe covers, head covers, underwear, pillowcases, diaper components (acquisition, core, back sheet), feminine

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13

Langer, N. "Wolf-Rayet stars as a diagnostic of internal mixing processes in massive mass losing stars." International Astronomical Union Colloquium 108 (1988): 90–91. http://dx.doi.org/10.1017/s0252921100093519.

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Massive stars (MZAMS ≳ 30 M⊙) develop during their observable hydrostatic evolutionary phases — i.e. central H- and He-burning — three different large scale convective zones, which are: 1) The H-burning convective core, 2) the intermediate convective shell (ICZ) above the hydrogen shell source, which forms at time of hydrogen exhaustion, and 3) the He-burning convective core. The spatial extent of these convective regions, wherein the chemical structure is rapidly homogenised, can be predicted from theory only with a large uncertainty. Different assumptions on the efficiency of these mixing pr

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14

Cochrane, Grant W. G. "The significance of Levallois and discoidal technology in the Arcadia Valley, south central Queensland." Queensland Archaeological Research 17 (May 8, 2014): 1. http://dx.doi.org/10.25120/qar.17.2014.229.

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<p>An analysis of stone artefacts from the Arcadia Valley in south central Queensland is used to develop a core reduction sequence model for the region. During the initial construction of this model, core types are identified that reflect phases or end points in reduction trajectories. The model shows that core reduction methods employed in the Arcadia Valley during the mid-to-late Holocene included Levallois, discoidal, prismatic and burin blade core methods, along with less formal reduction strategies. In recognition of the equifinality of many reduction processes, the model has a flex

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15

LIKHOSHVAI, VITALI, and ALEXANDER RATUSHNY. "GENERALIZED HILL FUNCTION METHOD FOR MODELING MOLECULAR PROCESSES." Journal of Bioinformatics and Computational Biology 05, no. 02b (2007): 521–31. http://dx.doi.org/10.1142/s0219720007002837.

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Development of an in silico cell is an urgent task of systems biology. The core of this cell should consist of mathematical models of intracellular events, including enzymatic reactions and control of gene expression. For example, the minimal model of the E. coli cell should include description of about one thousand enzymatic reactions and regulation of expression of approximately the same number of genes. In many cases detailed mechanisms of molecular processes are not known. In this study, we propose a generalized Hill function method for modeling molecular events. The proposed approach is a

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16

Fryer, Brian J., and John D. Greenough. "Evidence for mantle heterogeneity from platinum-group-element abundances in Indian Ocean basalts." Canadian Journal of Earth Sciences 29, no. 11 (1992): 2329–40. http://dx.doi.org/10.1139/e92-181.

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Oceanic-island tholeiitic basalts recovered from four sunken oceanic islands along the Reunion hot-spot trace show trace-element and mineralogical characteristics ranging from typical oceanic-island tholeiites to incompatible-element-depleted tholeiites resembling mid-ocean-ridge basalts. There are also variable degrees of magma evolution at each island. Noble metal (Au, Pd, Pt, Rh, Ru, Ir) abundances tend to decrease with magma evolution and with magma "alkalinity", indicating that the metals behave as compatible elements during crystal fractionation processes and during mantle melting proces

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17

Inamoto, Shin, and Yuji Otsuka. "Energy-dispersive X-ray spectroscopy for an atomic-scale quantitative analysis of Pd–Pt core-shell nanoparticles." Microscopy 69, no. 1 (2020): 26–30. http://dx.doi.org/10.1093/jmicro/dfz113.

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Abstract The properties of core-shell nanoparticles, which are used for many catalytic processes as an alternative to platinum, depend on the size of both the particle and the shell. It is thus necessary to develop a quantitative method to determine the shell thickness. Pd–Pt core-shell particles were analyzed using scanning transmission electron microscopy (STEM) and energy-dispersive X-ray spectroscopy (EDX). Quantitative EDX line profiles acquired from the core-shell particle were compared to four core-shell models. The results indicate that the thickness of the Pt shell corresponds to two

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18

KEMELMAN, Rachel, and Daniela COJOCARU. "NURSING CORE CURRICULUM REVISION IN ISRAEL: HISTORICAL REVIEW." Social Research Reports 11, no. 3 (2019): 90–96. http://dx.doi.org/10.33788/srr11.3.6.

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The Nursing Core Curriculum has been continually developed and revised in many countries over recent decades. These revisions are shaped mainly by social changes and challenges: for example, the forecast that the elderly will become a significant percentage of populations in developed countries, global migration processes, computerization of medical services, and new complex medical devices have all necessitated changes in the education of 21st century nurses. In Israel, nursing education has developed simultaneously under the influences of both the British versus the American core curricula t

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19

Luo, Bin, Yiding Zhong, Hualing Chen, Zicai Zhu, and Yanjie Wang. "Direct Writing Corrugated PVC Gel Artificial Muscle via Multi-Material Printing Processes." Polymers 13, no. 16 (2021): 2734. http://dx.doi.org/10.3390/polym13162734.

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Electroactive PVC gel is a new artificial muscle material with good performance that can mimic the movement of biological muscle in an electric field. However, traditional manufacturing methods, such as casting, prevent the broad application of this promising material because they cannot achieve the integration of the PVC gel electrode and core layer, and at the same time, it is difficult to create complex and diverse structures. In this study, a multi-material, integrated direct writing method is proposed to fabricate corrugated PVC gel artificial muscle. Inks with suitable rheological proper

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20

Halgren, Eric. "PET may image the gates of awareness, not its center." Behavioral and Brain Sciences 18, no. 2 (1995): 358–59. http://dx.doi.org/10.1017/s0140525x00038826.

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AbstractPET detects changes in metabolism between task periods and is thus insensitive to areas that are activated during all or most of cognition. Depth-recorded, evokedpotentials indicate that many multimodal and limbic cortical areas may be activated during most cognitive tasks. Thus, PET may be insensitive to some core processes of awareness that are difficult to eliminate from the control periods.

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Münch, Thomas, Martin Werner, and Thomas Laepple. "How precipitation intermittency sets an optimal sampling distance for temperature reconstructions from Antarctic ice cores." Climate of the Past 17, no. 4 (2021): 1587–605. http://dx.doi.org/10.5194/cp-17-1587-2021.

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Abstract. Many palaeoclimate proxies share one challenging property: they are not only driven by the climatic variable of interest, e.g. temperature, but they are also influenced by secondary effects which cause, among other things, increased variability, frequently termed noise. Noise in individual proxy records can be reduced by averaging the records, but the effectiveness of this approach depends on the correlation of the noise between the records and therefore on the spatial scales of the noise-generating processes. Here, we review and apply this concept in the context of Antarctic ice-cor

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Stauffer, Bernhard, Jacqueline Flückiger, Eric Wolff, and Piers Barnes. "The EPICA deep ice cores: first results and perspectives." Annals of Glaciology 39 (2004): 93–100. http://dx.doi.org/10.3189/172756404781814500.

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AbstractTwo deep ice cores are being drilled in Antarctica in the frame of the European Project for Ice Coring in Antarctica (EPICA). The Dome C ice core will provide more information about mechanisms of global climatic changes over several climatic cycles. The DML core, drilled at Kohnen station, will provide a detailed record over the last climatic cycle, which can be compared with Greenland records. The drilling at Dome C reached 3200 m depth during field season 2002/03, and the age of the ice at the bottom of the hole could be 900 000 years according to preliminary estimates. The depth at

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23

Ugalde, Paula C., Jay Quade, Calogero M. Santoro, and Vance T. Holliday. "Processes of Paleoindian site and desert pavement formation in the Atacama Desert, Chile." Quaternary Research 98 (June 19, 2020): 58–80. http://dx.doi.org/10.1017/qua.2020.39.

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AbstractA distinct feature of many of the earliest archaeological sites (13,000-11,200 cal yr BP) at the core of the Atacama Desert is that they lie at or just below the surface, often encased in desert pavements. In this study, we compare these sites and undisturbed desert pavements to understand archaeological site formation and pavement development and recovery. Our results indicate these pavements and their soils are poorly developed regardless of their age. We propose that this is because of sustained lack of rain and extreme physical breakdown of clasts by salt expansion. Thus, the core

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He, Hailing, Yuezhao Pang, Zhiwei Duan, Na Luo, and Zhenqing Wang. "The Strengthening and Toughening of Biodegradable Poly (Lactic Acid) Using the SiO2-PBA Core–Shell Nanoparticle." Materials 12, no. 16 (2019): 2510. http://dx.doi.org/10.3390/ma12162510.

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The balance of strengthening and toughening of poly (lactic acid) (PLA) has been an intractable challenge of PLA nanocomposite development for many years. In this paper, core–shell nanoparticles consisting of a silica rigid core and poly (butyl acrylate) (PBA) flexible shell were incorporated to achieve the simultaneous enhancement of the strength and toughness of PLA. The effect of core–shell nanoparticles on the tensile, flexural and Charpy impact properties of PLA nanocomposite were experimentally investigated. Scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS) measu

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Schauber, Holli. "Using the EPOSTL for Dialogic Reflection in EFL Teacher Education." GiST Education and Learning Research Journal, no. 11 (December 14, 2015): 118–37. http://dx.doi.org/10.26817/16925777.290.

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For many pre-service English as a Foreign Language (EFL) teachers and their mentors, the theory and practice driven European Portfolio for Student Teachers of Languages (EPOSTL)3 occupies a prominent and practical role in their preparation programs as a delivery system of core pedagogical skills and knowledge. Interest in the role that dialogical reflection plays in this process is studied in an EFL teacher education program at a Swiss university that relies heavily on the EPOSTL for the professional development awareness-raising. While the EPOSTL contributes valuable core knowledge to the pro

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Myers, Philip C. "Formation of star clusters: Models and simulations." Proceedings of the International Astronomical Union 11, S315 (2015): 130–37. http://dx.doi.org/10.1017/s1743921316007390.

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AbstractRecent progress is reviewed in describing the physical processes of star cluster formation, from the viewpoint of theoretical models and numerical simulations. In many studies, supersonic turbulent flows structure the gas into a network of clumps, filaments, and cores. Self-gravity drives star formation, moderated by turbulence, magnetic fields, and stellar feedback. Recent models and simulations describe the core mass function, the protostar mass function, and the star-formation rate. Several simulations indicate similar protostar birthrates, a mass advantage for firstborn protostars,

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Rankin, Joanna M. "Single Pulses and the Plasma-physical Processes of Pulsar Radio Emission." Proceedings of the International Astronomical Union 13, S337 (2017): 73–78. http://dx.doi.org/10.1017/s1743921317010341.

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AbstractPulsars were discovered on the basis of their individual pulses, first by Jocelyn Bell and then by many others. This was chart-recorder science as computers were not yet in routine use. Single pulses carry direct information about the emission process as revealed in the detailed properties of their polarization characteristics. Early analyses of single pulses proved so dizzyingly complex that attention shifted to study of average profiles. This is turn led to models of pulsar emission beams—in particular the core/double-cone model—which now provides a foundation for understanding singl

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Boebinger, Greg, Daniel L. Cox, Alan J. Hurd, and David Pines. "Up Close: The Institute for Complex Adaptive Matter, An Emergent Institution." MRS Bulletin 29, no. 12 (2004): 963–66. http://dx.doi.org/10.1557/mrs2004.268.

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Many of the key challenges and opportunities in the study of matter involve complex and collective phenomena in which many parts exhibit organization without a central instruction set or clock. At the core of this enterprise in the study of matter is the search for an understanding of “emergent behavior”—that is, phenomena whose ultimate cause involves interactions between many simple units but which cannot be easily predicted from knowledge of the component parts alone. Examples of emergence are ordered convection cells in fluids, metabolic processes in cells, cognition, and stripes in superc

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Prakash, Anuj V., Anwesha Chaudhury, and Rohit Ramachandran. "Parallel Simulation of Population Balance Model-Based Particulate Processes Using Multicore CPUs and GPUs." Modelling and Simulation in Engineering 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/475478.

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Computer-aided modeling and simulation are a crucial step in developing, integrating, and optimizing unit operations and subsequently the entire processes in the chemical/pharmaceutical industry. This study details two methods of reducing the computational time to solve complex process models, namely, the population balance model which given the source terms can be very computationally intensive. Population balance models are also widely used to describe the time evolutions and distributions of many particulate processes, and its efficient and quick simulation would be very beneficial. The fir

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Zhou, Wuzong. "Reversed Crystal Growth." Crystals 9, no. 1 (2018): 7. http://dx.doi.org/10.3390/cryst9010007.

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In the last decade, a reversed growth route has been found in many crystal growth processes. In these systems, a single crystal does not develop from a single nucleus. The precursor molecules/ions or nanocrystallites aggregate into some large amorphous or polycrystalline particles. Multiple-nucleation on the surface of the amorphous particles or surface re-crystallization of the polycrystalline particles then takes place, forming a single crystal shell with a regular morphology. Finally, the crystallization extends from the surface to the core to form single crystals. This non-classical crysta

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Gillies, Graeme. "Predictions of the shear modulus of cheese, a soft matter approach." Applied Rheology 29, no. 1 (2019): 58–68. http://dx.doi.org/10.1515/arh-2019-0006.

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Abstract The rheological and structural properties of cheese govern many physical processes associated with cheese such as slumping, slicing and melting. To date there is no quantitative model that predicts shear modulus, viscosity or any other rheological property across the entire range of cheeses; only empirical fits that interpolate existing data. A lack of a comprehensive model is in part due to the many variables that can affect rheology such as salt, pH, calcium levels, protein to moisture ratio, age and temperature. By modelling the casein matrix as a series core-shell nano particles a

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Cho, Kyuman, Taehoon Hong, and Changtaek Hyun. "Scheduling model for repetitive construction processes for high-rise buildings." Canadian Journal of Civil Engineering 38, no. 1 (2011): 36–48. http://dx.doi.org/10.1139/l10-108.

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In a high-rise building project that involves many repetitive construction processes, the effective control of such repetitive construction processes is a key factor in the success of the project. Unlike the existing scheduling methods for repetitive construction processes, a scheduling model that considers (i) the flexible job logic of the multiple work tasks that comprise a construction process and (ii) the productivity of the construction equipment and labor was developed in this paper. Various theories and algorithms such as the linking dummy, the linear scheduling method, and the producti

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Donsbach, Pascal, and Dagmar Klostermeier. "Regulation of RNA helicase activity: principles and examples." Biological Chemistry 402, no. 5 (2021): 529–59. http://dx.doi.org/10.1515/hsz-2020-0362.

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Abstract RNA helicases are a ubiquitous class of enzymes involved in virtually all processes of RNA metabolism, from transcription, mRNA splicing and export, mRNA translation and RNA transport to RNA degradation. Although ATP-dependent unwinding of RNA duplexes is their hallmark reaction, not all helicases catalyze unwinding in vitro, and some in vivo functions do not depend on duplex unwinding. RNA helicases are divided into different families that share a common helicase core with a set of helicase signature motives. The core provides the active site for ATP hydrolysis, a binding site for no

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Kjær, Helle Astrid, Lisa Lolk Hauge, Marius Simonsen, et al. "A portable lightweight in situ analysis (LISA) box for ice and snow analysis." Cryosphere 15, no. 8 (2021): 3719–30. http://dx.doi.org/10.5194/tc-15-3719-2021.

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Abstract. There are enormous costs involved in transporting snow and ice samples to home laboratories for “simple” analyses in order to constrain annual layer thicknesses and identify accumulation rates of specific sites. It is well known that depositional noise, incurred from factors such as wind drifts, seasonally biased deposition and melt layers can influence individual snow and firn records and that multiple cores are required to produce statistically robust time series. Thus, at many sites, core samples are measured in the field for densification, but the annual accumulation and the cont

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Gao, Fei, Xiang Dong Guo, and Wen Sheng Xia. "Design and Research of Industrial Robot Control Base on CNC Platform." Applied Mechanics and Materials 614 (September 2014): 188–90. http://dx.doi.org/10.4028/www.scientific.net/amm.614.188.

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In the pipeline for connecting rod body and the rod bushing assembly processes, still using manual complete, so the labor intensity is relatively large, the production efficiency is low. With the rapid development of CNC technology, digital technology is moving towards high-precision, high-speed, high flexibility, high reliability and composite direction of development, there are many new knowledge, new technologies, new processes and new methods. Meanwhile CNC system is the CNC technology foundation and core. Through CNC system for the robot's control to the assembly point in real time captur

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Frank, Lukas, Rouven Poll, Maximilian Roeglinger, and Rupprecht Lea. "Design heuristics for customer-centric business processes." Business Process Management Journal 26, no. 6 (2020): 1283–305. http://dx.doi.org/10.1108/bpmj-06-2019-0257.

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PurposeCustomer centricity has evolved into a success factor for many companies, requiring all corporate activities – including business processes – to be aligned with customer needs. With most existing approaches to business process (re-)design focusing on process efficiency, customers are often treated as second-class citizens. Despite emergent research on customer process management, there is a lack of guidance on how to design customer-centric business processes.Design/methodology/approachThe authors conducted a structured literature review and analyzed companies awarded for outstanding cu

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Couchman, John R., Hinke Multhaupt, and Ralph D. Sanderson. "Recent Insights into Cell Surface Heparan Sulphate Proteoglycans and Cancer." F1000Research 5 (June 29, 2016): 1541. http://dx.doi.org/10.12688/f1000research.8543.1.

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A small group of cell surface receptors are proteoglycans, possessing a core protein with one or more covalently attached glycosaminoglycan chains. They are virtually ubiquitous and their chains are major sites at which protein ligands of many types interact. These proteoglycans can signal and regulate important cell processes, such as adhesion, migration, proliferation, and differentiation. Since many protein ligands, such as growth factors, morphogens, and cytokines, are also implicated in tumour progression, it is increasingly apparent that cell surface proteoglycans impact tumour cell beha

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Virkkunen, K., J. C. Moore, E. Isaksson, et al. "Warm summers and ion concentrations in snow: comparison of present day with Medieval Warm Epoch from snow pits and an ice core from Lomonosovfonna, Svalbard." Journal of Glaciology 53, no. 183 (2007): 623–34. http://dx.doi.org/10.3189/002214307784409388.

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Snow pits sampled during two consecutive years (2001, 2002) at the summit of Lomonosovfonna ice cap in central Spitsbergen, Svalbard, showed that ion concentrations were spatially homogeneous. The snowpack on Lomonosovfonna shows no evidence of aerosol deposition from Arctic haze, in contrast to Holtedahlfonna (a glacier at a similar altitude in northern Spitsbergen) where there is a clear signature. In common with many other ice caps in the Arctic, Lomonosovfonna experiences periodic melting, and the deepest of the snow pits contained a record of one exceptionally warm (2001) and one long sum

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Barnes, Piers R. F., Robert Mulvaney, Kenneth Robinson, and Eric W. Wolff. "Observations of polar ice from the Holocene and the glacial period using the scanning electron microscope." Annals of Glaciology 35 (2002): 559–66. http://dx.doi.org/10.3189/172756402781816735.

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AbstractSamples taken from the Dome C ice core, Antarctica, and the GRIP ice core, Greenland, are examined using the scanning electron microscope to determine their microstructure. In both cores, samples are taken from two differing climatic periods: the Holocene and the last glacial period. Many of the usual features observed in similar samples under the light microscope are observed, including: bubbles, grain boundaries and clathrate hydrates. Features not resolvable using the light microscope are also found. Dust particles are found in situ. Eighty-five per cent of those observed contained

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Kreiner, T., W. Sossin, and R. H. Scheller. "Localization of Aplysia neurosecretory peptides to multiple populations of dense core vesicles." Journal of Cell Biology 102, no. 3 (1986): 769–82. http://dx.doi.org/10.1083/jcb.102.3.769.

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Many neurons in the mollusc Aplysia are identifiable and provide a useful model system for investigating the cellular mechanisms used by the neuroendocrine system to mediate simple behaviors. In this study we determined the subcellular localization of eight Aplysia neuropeptides using immunogold labeling techniques, and analyzed the size distribution of dense core and granular vesicles in peptidergic neurons. Recent observations demonstrate that many neurons use multiple chemical messengers. Thus, an understanding of the functional significance of cotransmitters requires an analysis of their r

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Mosier, Alexander E., and Jennifer M. Hurley. "Circadian Interactomics: How Research Into Protein-Protein Interactions Beyond the Core Clock Has Influenced the Model of Circadian Timekeeping." Journal of Biological Rhythms 36, no. 4 (2021): 315–28. http://dx.doi.org/10.1177/07487304211014622.

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The circadian clock is the broadly conserved, protein-based, timekeeping mechanism that synchronizes biology to the Earth’s 24-h light-dark cycle. Studies of the mechanisms of circadian timekeeping have placed great focus on the role that individual protein-protein interactions play in the creation of the timekeeping loop. However, research has shown that clock proteins most commonly act as part of large macromolecular protein complexes to facilitate circadian control over physiology. The formation of these complexes has led to the large-scale study of the proteins that comprise these complexe

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YUSHANKHAI, V., and L. SIURAKSHINA. "ANALYSIS OF CRYSTAL-FIELD MULTIPLETS OF V3+ ION IN PEROVSKITE OXIDES FOR RESONANT INELASTIC X-RAY SCATTERING SPECTROSCOPY." International Journal of Modern Physics B 27, no. 31 (2013): 1350185. http://dx.doi.org/10.1142/s0217979213501853.

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Spectral properties related to the low-energy d–d excitations in nearly cubic vanadium perovskites are examined for the expected L-edge resonant inelastic X-ray scattering (RIXS) measurements. Multiplet structure of V 3+ ion in the basic [Formula: see text] electron configuration is calculated with the help of ab initio quantum-chemical method applied to VO 6 cluster embedded in a crystalline environment. In the intermediate states of the RIXS process the induced 2p-core hole is taken into account by including strong 2p–3d electron interactions. A symmetry-group approach is applied to generate

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Orpen, John, and David Orpen. "Error-Proofing Diamond Drilling and Drill Core Measurements." SEG Discovery, no. 123 (October 1, 2020): 23–34. http://dx.doi.org/10.5382/geo-and-mining-09.

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Editor’s note: The Geology and Mining series, edited by Dan Wood and Jeffrey Hedenquist, is designed to introduce early-career professionals and students to a variety of topics in mineral exploration, development, and mining, in order to provide insight into the many ways in which geoscientists contribute to the mineral industry. Abstract The diamond drill is the most productive tool available for the earth scientist to explore and map the subsurface. However, the quality of the information obtained for analysis and modeling depends on how well the processes involved are understood so as to el

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Guillermic, Maxence, Sambuddha Misra, Robert Eagle, Alexandra Villa, Fengming Chang, and Aradhna Tripati. "Seawater pH reconstruction using boron isotopes in multiple planktonic foraminifera species with different depth habitats and their potential to constrain pH and <i>p</i>CO<sub>2</sub> gradients." Biogeosciences 17, no. 13 (2020): 3487–510. http://dx.doi.org/10.5194/bg-17-3487-2020.

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Abstract. Boron isotope systematics of planktonic foraminifera from core-top sediments and culture experiments have been studied to investigate the sensitivity of δ11B of calcite tests to seawater pH. However, our knowledge of the relationship between δ11B and pH remains incomplete for many taxa. Thus, to expand the potential scope of application of this proxy, we report δ11B data for seven different species of planktonic foraminifera from sediment core tops. We utilize a method for the measurement of small samples of foraminifera and calculate the δ11B-calcite sensitivity to pH for Globigerin

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Yang, Jian Ping, Tian Xin, and Yang Liu. "Real Estate Groups Core Business Process Design Based on BRI." Applied Mechanics and Materials 433-435 (October 2013): 2373–76. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.2373.

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Along with changes in both self-development and external environment, many issues have arisen within todays real estate enterprise management. As the outcome of speedy technological innovation and gradual emergence of knowledge economy, management processes have been optimized by these transformations in real estate industry. According to the theory of business process Improvement, this research first analyzed the core processes in real estate enterprise, then re-deigned the process by using the tool of The turtle analysis diagram, finally came up with suggestions according to potential risks

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Mancini, Silvia, Luigi Langellotto, Giovanni Zangari, Riccardo Maccaglia, and Andrea Di Schino. "Optimization of Open Die Ironing Process through Artificial Neural Network for Rapid Process Simulation." Metals 10, no. 10 (2020): 1397. http://dx.doi.org/10.3390/met10101397.

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The open die forging sequence design and optimization are usually performed by simulating many different configurations corresponding to different forging strategies. Finite element analysis (FEM) is a tool able to simulate the open die forging process. However, FEM is relatively slow and therefore it is not suitable for the rapid design of online forging processes. A new approach is proposed in this work in order to describe the plastic strain at the core of the piece. FEM takes into account the plastic deformation at the core of the forged pieces. At the first stage, a thermomechanical FEM m

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Sutherland, Ann, and Alyssa Lesko. "Pulsed actomyosin contractions in morphogenesis." F1000Research 9 (February 25, 2020): 142. http://dx.doi.org/10.12688/f1000research.20874.1.

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Cell and tissue shape changes are the fundamental elements of morphogenesis that drive normal development of embryos into fully functional organisms. This requires a variety of cellular processes including establishment and maintenance of polarity, tissue growth and apoptosis, and cell differentiation, rearrangement, and migration. It is widely appreciated that the cytoskeletal networks play an important role in regulating many of these processes and, in particular, that pulsed actomyosin contractions are a core cellular mechanism driving cell shape changes and cell rearrangement. In this revi

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Scherz, Ruth, Vera Shinder, and David Engelberg. "Anatomical Analysis of Saccharomyces cerevisiaeStalk-Like Structures Reveals Spatial Organization and Cell Specialization." Journal of Bacteriology 183, no. 18 (2001): 5402–13. http://dx.doi.org/10.1128/jb.183.18.5402-5413.2001.

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ABSTRACT Recently we reported an unusual multicellular organization in yeast that we termed stalk-like structures. These structures are tall (0.5 to 3 cm long) and narrow (1 to 3 mm in diameter). They are formed in response to UV radiation of cultures spread on high agar concentrations. Here we present an anatomical analysis of the stalks. Microscopic inspection of cross sections taken from stalks revealed that stalks are composed of an inner core in which cells are dense and vital and a layer of cells (four to six rows) that surrounds the core. This outer layer is physically separated from th

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Dobosz, St M., A. Grabarczyk, K. Major-Gabryś, and D. Bolibruchova. "Elasticity of cores manufactured in cold box technology." Archives of Metallurgy and Materials 62, no. 1 (2017): 351–54. http://dx.doi.org/10.1515/amm-2017-0053.

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Abstract In the foundry industry, as in many other fields we seek to achieve the best quality with the least losses and the lowest cost. To meet these demands numerous plants increased automatization of their manufacturing processes. However, with changes in the production process it is necessary to change also the materials used. Not only casting alloys that are used in production, but also applied moulding and core sands are important. Proper selection and evaluation of the properties of used moulding mixtures is crucial in order to achieve a highly efficient production. In this article a ne

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Chmielecki, Michał. "Culture as a barrier of knowledge sharing." Journal of Intercultural Management 5, no. 2 (2013): 101–11. http://dx.doi.org/10.2478/joim-2013-0013.

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Abstract Management in last decades has seen knowledge sharing become a key tool for the success of a variety of institutions. Many international companies and other organizations have developed knowledge management programs as key to their future development strategies. There are number of international organizations that have identified knowledge sharing as one of their core management tools. Yet despite its growing popularity, knowledge sharing remains a complex and challenging task. This article discusses what cultural barriers can impede knowledge sharing processes

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