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Journal articles on the topic 'Bent pyramid'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Rossi, Corinna. "Note on the Pyramidion Found at Dahshur." Journal of Egyptian Archaeology 85, no. 1 (1999): 219–22. http://dx.doi.org/10.1177/030751339908500116.

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The significant discrepancy between the slope of the pyramidion found at Dahshur and the slope of the Red Pyramid, beside which it was found, suggests that this pyramidion might have been planned for another pyramid. Study of surviving pyramidia and the evidence provided by the other pyramids in the area seem to point to the second stage of the construction of the Bent Pyramid as its original destination.

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Yaroschuk, A. M. "EGYPT, DASHUR: AN ANCIENT CO/CO2 GAS GENERATOR DISCOVERED ON THE LOWER LEVEL OF THE BENT PYRAMID OF SNEFERU." Bulletin of Kemerovo State University, no. 2 (June 29, 2017): 104–10. http://dx.doi.org/10.21603/2078-8975-2017-2-104-110.

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The article researches the design and the purpose of the lower tier chamber in the Bent Pyramid of Sneferu in Dashure. The review of the earlier archeological research materials has shown that the purpose of the chamber has not been determined. In the process of the current research a technological link between the lower and the upper tiers of the pyramid has been found. It has been proven that the lower tier elements (the chamber itself, the shaft, and the chimney) all together comprised an ancient furnace – a CO/CO2 gas generator. Its purpose was to produce a mixture of carbon monoxide and c

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Yaroschuk, A. M. "EGYPT. AN UNKNOWN PORTCULLIS TYPE IS DISCOVERED IN THE BENT PYRAMID OF SNEFERU IN DUSHORE." Bulletin of Kemerovo State University, no. 4 (November 26, 2016): 104–7. http://dx.doi.org/10.21603/2078-8975-2016-4-104-107.

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The article analyzes the design and operation of the portcullis blocking the corridor in the Bent Pyramid. It proves that the drawing of an activated portcullis demonstrated by D. Perring in 1939 is wrong. Egyptologists have been making references to the drawing for many years. The author concludes that a new type of portcullis was activated in the attempt of the robbers to enter the pyramid.

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Yaroschuk, A. M. "EGYPT. THE BENT PYRAMID OF SNEFERU AT DAHSHUR. THE UPPER CHAMBER – THE CHAMBER OF DEATH." Bulletin of Kemerovo State University, no. 1 (March 20, 2017): 80–84. http://dx.doi.org/10.21603/2078-8975-2017-1-80-84.

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The article investigates the design and the purpose of the Upper chamber of the Bent Pyramid of Sneferu. The author proves that the Upper chamber was a false tomb of the Pharaoh. The chamber served as bait for thieves and was designed to kill them with carbon dioxide in the confined space. Repetitive "reconstructions" of the chamber were performed to reduce the volume of air suitable for breathing. The portcullis, when triggered, ensured the airtightness of the chamber. The article establishes the connection between the ways of the portcullis conjugation in the Sneferu Pyramid and a modern lab

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Kennedy, John B., Mokhtar Seddeik, and Frank Brady. "Deformations in Cold-bent HSS Members." Engineering Journal 23, no. 3 (1986): 117–23. http://dx.doi.org/10.62913/engj.v23i3.468.

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The purpose of this investigation is to predict the relation between the radius of bend and the distortion of Hollow Structural Section (HSS) members. An experimental program was carried out using twenty-seven different profiles of HSS members. The pyramid-type, three-roller bending machine was used as the method of cold-bending. The cross-section distortion is defined by two parameters that describe the permanent deformations in the flange and web of the crosssection. Multiple regression analysis was used to obtain a relation between each of these parameters, the cross section properties and

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6

MacKenzie, Kenneth J. D., Mark E. Smith, Alan Wong, John V. Hanna, Bernard Barry, and Michel W. Barsoum. "Were the casing stones of Senefru's Bent Pyramid in Dahshour cast or carved?" Materials Letters 65, no. 2 (2011): 350–52. http://dx.doi.org/10.1016/j.matlet.2010.10.035.

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Siidra, O. I., S. V. Krivovichev, N. V. Chukanov, et al. "The crystal structure of Pb5(As3+O3)Cl7 from the historic slags of Lavrion, Greece – a novel Pb(II) chloride arsenite." Mineralogical Magazine 75, no. 2 (2011): 337–45. http://dx.doi.org/10.1180/minmag.2011.075.2.337.

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AbstractThe crystal structure of new lead chloride arsenite, Pb5(As3+O3)Cl7 [orthorhombic, Pbcn, a = 16.894(2), b = 10.913 (1), c = 16.760(2) Å, V = 3090.1(7) Å3], from the historic slags of Lavrion, Greece, has been solved by direct methods and refined to R1 = 0.069. The structure contains five symmetrically unique Pb, one As, eight Cl and three O sites. The As atom forms three nearly equal As—O bonds which result in the formation of an AsO3 trigonal pyramid with As at the apex. The Pbl. Pb2, Pb3 and Pb4 atoms are bonded to the AsO3 groups via Pb2+—O bonds to form complex [Pb4(AsO3)] chains p

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8

Chaudhary, Neha, and Priti Dimri. "LATENT FINGERPRINT IMAGE ENHANCEMENT BASED ON OPTIMIZED BENT IDENTITY BASED CONVOLUTIONAL NEURAL NETWORK." Indian Journal of Computer Science and Engineering 12, no. 5 (2021): 1477–93. http://dx.doi.org/10.21817/indjcse/2021/v12i5/211205124.

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Fingerprints are unique biometric systems (BSs) in which none of the human possesses similar fingerprint structures. It is one of the most significant biometric processes used in the identification of criminals. Latent fingerprints or latents are generated mainly by the finger sweat or oil deposits which is left by the suspects unintentionally. The impressions of latents are blurred or smudgy in nature and not viewed by naked eye. These fingerprints are of low quality, corrupted by noise, degraded by technological factors and exhibit minor details. Latents display consistent structural info wh

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Ciută, Marius-Mihai, and Radu Ota. "A Figurative Roman Period Monument Recently Recorded into the Collection of the National Union Museum Alba Iulia. Considerations Regarding its Significance." Ephemeris Napocensis 31 (February 10, 2022): 151–64. http://dx.doi.org/10.33993/ephnap.2021.31.151.

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The scope of this scientific endeavour is the analysis of the Roman funeral monument, recently recovered by the judicial bodies from a certain individual from Alba Iulia. Upon the presentation of the method of recovery of the monument, the authors refer to an unfortunate implications’ phenomenon for the cultural heritage, which is occurring in Alba Iulia, where under lies the largest urban concentration within the former Roman province, namely Dacia. We are referring to the urban centre Apulum where, each year, numerous vestiges come to light, because of archaeological exploitations. Unfortuna

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Garta, Ibrahim Yahaya, Shao-Kuo Tai, and Rung-Ching Chen. "Improved Detection of Multi-Class Bad Traffic Signs Using Ensemble and Test Time Augmentation Based on Yolov5 Models." Applied Sciences 14, no. 18 (2024): 8200. http://dx.doi.org/10.3390/app14188200.

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Various factors such as natural disasters, vandalism, weather, and environmental conditions can affect the physical state of traffic signs. The proposed model aims to improve detection of traffic signs affected by partial occlusion as a result of overgrown vegetation, displaced signs (those knocked down, bent), perforated signs (those damaged with holes), faded signs (color degradation), rusted signs (corroded surface), and de-faced signs (placing graffiti, etc., by vandals). This research aims to improve the detection of bad traffic signs using three approaches. In the first approach, Spiral

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Zhang, Aidong, and Yongqing Fang. "Language-Culture Pyramid in the Era of Belt and Road." International Journal of Languages, Literature and Linguistics 5, no. 4 (2019): 263–73. http://dx.doi.org/10.18178/ijlll.2019.5.4.240.

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12

Berger, Thomas, and Klaus-Jürgen Range. "Zwei Metasilicate mit Vierer-Einfach-Ketten: Hochdrucksynthese und Strukturverfeinerung von Sr2(VO)2Si4O12 (Haradait) und Sr2(TiO)2Si4O12 / Two Metasilicates with Vierer Single Chains: High-Pressure Synthesis and Structure Refinement of Sr2(VO)2Si4O12 (Haradaite) and Sr2(TiO )2Si4O12." Zeitschrift für Naturforschung B 51, no. 8 (1996): 1099–103. http://dx.doi.org/10.1515/znb-1996-0807.

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Single crystals of Sr2(VO)2Si4O12 could be obtained by high-pressure high-temperature reaction of a SrSiO3/SiO2/V2O5 mixture in a modified Belt-type apparatus. The green crystals are orthorhombic, space group Cmcm, with a = 5.3139(3), b = 14.6281(7), c = 7.0329(4) Å and Z = 2. The structure comprises vierer single chains of SiO4 tetrahedra, the resulting Si4O12 units being connected by VO5 square pyramids. There is one short distance (V - O = 1.61 (1) Å) within the square pyramid, giving definite evidence to a (VO)2+ group with a V = O double bond.The crystal structure of microcrystalline Sr2(

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13

Zhang, Jian, Bin Luo, Li Li, and Hongguang Liu. "Cutting Characteristics for Sugar Maple Using Single Grit with Spherical Cone and Triangular Pyramid Geometries." Materials 12, no. 21 (2019): 3621. http://dx.doi.org/10.3390/ma12213621.

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Abrasive belt sanding plays an important role in wood processing. The abrasive grits on the belt perform similar to small cutting tools with negative rake angles. In this study, a series of single-grit scratching tests were carried out on Sugar maple workpieces to investigate the cutting characteristics of two different abrasive-grit shapes. The spherical cone grits had two kinds of included angles, and the triangular pyramid grits provided two cutting forms: one main cutting edge and two side cutting edges as well as two main cutting edges. Both scratching along and across the wood grain dire

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14

Xie, Xiaona, Zhengwei Chang, Zhongxiao Lan, Mingju Chen, and Xingyue Zhang. "Improved YOLOv7 Electric Work Safety Belt Hook Suspension State Recognition Algorithm Based on Decoupled Head." Electronics 13, no. 20 (2024): 4017. http://dx.doi.org/10.3390/electronics13204017.

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Safety is the eternal theme of power systems. In view of problems such as time-consuming and poor real-time performance in the correct use of seat belt hooks by manual supervision operators in the process of power operation, this paper proposes an improved YOLOv7 seat belt hook suspension state recognition algorithm. Firstly, the feature extraction part of the YOLOv7 backbone network is improved, and the M-Spatial Pyramid Pooling Concurrent Spatial Pyramid Convolution (M-SPPCSPC) feature extraction module is constructed to replace the Spatial Pyramid Pooling Concurrent Spatial Pyramid Convolut

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15

Indira, K., M. K. Rudra Warier, and T. R. Ananthakrishnan. "Bending Energy Minimisation Criterion for Molecular Geometry in XY3 Pyramidal Systems." Zeitschrift für Naturforschung A 47, no. 11 (1992): 1119–20. http://dx.doi.org/10.1515/zna-1992-1104.

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AbstractA study of the variation of the vibrational potential energy contribution with interbond angles in XY3 pyramidal molecules confirms the observation previously made for XY2 bend symmetric systems that the actual equilibrium y configuration lies in the premises of minimum A study of the variation of the vibrational potential energy contribution with interbond anglesin XY3 pyramidal molecules confirms the observation previously made for XY2 bend symmetricsystems that the actual equilibrium configuration lies in the premises of minimum Vbend and zero Vstretch-bend *

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Yan, Wendou, Xiuying Wang, and Shoubiao Tan. "YOLO-DFAN: Effective High-Altitude Safety Belt Detection Network." Future Internet 14, no. 12 (2022): 349. http://dx.doi.org/10.3390/fi14120349.

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This paper proposes the You Only Look Once (YOLO) dependency fusing attention network (DFAN) detection algorithm, improved based on the lightweight network YOLOv4-tiny. It combines the advantages of fast speed of traditional lightweight networks and high precision of traditional heavyweight networks, so it is very suitable for the real-time detection of high-altitude safety belts in embedded equipment. In response to the difficulty of extracting the features of an object with a low effective pixel ratio—which is an object with a low ratio of actual area to detection anchor area in the YOLOv4-t

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17

Beuthe, Tatjana. "New Insights into the Step Pyramid Complex: Klasens’ Unpublished Seal Impression Drawings." Journal of Egyptian Archaeology 105, no. 1 (2019): 135–41. http://dx.doi.org/10.1177/0307513319889333.

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The Egypt Exploration Society archive contains unpublished pencil drawings by A. Klasens of seal impressions found in the Step Pyramid complex of Saqqara. Digitally inked versions of these drawings are published here for the first time. The seal impressions can be sourced to the Northern Galleries of the complex. The impressions were sealed on clay formerly plastered on a wall, and also bore the imprints of the end(s) of cylinder seals. To explain the presence of seal impressions of Khasekhemwy among the sealings drawn by Klasens, an attempt is made to trace the construction and use history of

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18

Karen-Lizbeth, Flores-Rodriguez, Trujillo-Romero Felipe, and Gonzalez-Barbosa Jose-Joel. "Active object search using a pyramid approach to determine the next-best-view." IAES International Journal of Robotics and Automation (IJRA) 11, no. 1 (2022): 70–88. https://doi.org/10.11591/ijra.v11i1.pp70-88.

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The development of service robotics continues to arouse interest in the scientific community due to the complexity of the activities performed like interaction in human environments, identifying and manipulating objects, and even learning by themselves. This paper proposed to improve the perception of the environment by searching for objects in service robotics tasks. We present the development and implementation of an active object search method based on three main phases: Firstly, image pyramid segmentation to examine in detail the im- age features. Second step, object detection at each leve

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19

Sarmento Esteves, Luís Pedro F. R. "Inverted pyramid Azores - an eternal hybrid structure." Structural Mechanics of Engineering Constructions and Buildings 17, no. 3 (2021): 261–69. http://dx.doi.org/10.22363/1815-5235-2021-17-3-261-269.

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Engineering structures are designed with observation of rules for structural performance under specific design loads, defined in the so-called structural codes. While dead loads are directly dependent from the selection of structural materials to a given structural function, live and accidental loads are often linked to the region where the structure must perform. In a complete opposition to engineering principles in Ancient Egypt, the inverted pyramid was designed to become a statement of how to bend gravitational laws, and what can be achieved by modern engineering, sill with intelligence to

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20

Brandenberger, L., L. K. Wells, and B. Bostian. "SCREENING OF NEW HERBICIDES FOR WEED CONTROL IN THREE CHENOPOD CROPS." HortScience 40, no. 3 (2005): 886a—886. http://dx.doi.org/10.21273/hortsci.40.3.886a.

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Because of the limited number of herbicides in spinach, beet, and swiss chard, a screening study was initiated to identify new preemergence herbicides. Field soil at the study was a fine sandy loam. The study was initiated on 8 Apr. 2004 at Bixby, Okla. Each plot had four direct seeded rows of spinach, beet and chard. 22 treatments were replicated four times in a RBD that included a nontreated check. Treatments used 12 preemergence herbicides. Herbicides were applied PRE with a research sprayer at 20 GPA in a 6-ft swath perpendicular to crop rows. The experimental area received 0.5 inch of irr

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21

Abdelmohsen, Abdel-Rehim Mohamed. "Unpublished Pyramidal Stone in Beni Suief Museum." International Journal of Tourism, Archaeology and Hospitality 5, no. 2 (2025): 22–31. https://doi.org/10.21608/ijtah.2025.373829.1145.

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22

Ambriško, Ľubomír, Daniela Marasová, and Peter Klapko. "Energy Balance of the Dynamic Impact Stressing of Conveyor Belts." Applied Sciences 13, no. 7 (2023): 4104. http://dx.doi.org/10.3390/app13074104.

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This paper presents research into the energy balance of stressing conveyor belts by impact processes. Research is described in the areas of measuring the resistance of conveyor belts to puncture, the impact process, and the effect of changes to the impact height on the tensile and impact forces. Measurements were performed on a rubber–textile belt with a polyamide carcass. Hammers with pyramidal and spherical impactors were used to compare the resistance of the examined conveyor. Values were obtained for the maximum energies for the selected impact heights and the residual positional energies

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23

Deslongchamps, Ghislain, and Pierre Deslongchamps. "Bent bonds and the antiperiplanar hypothesis – a simple model to rationalize [1,3]-sigmatropic alkyl shifts." Organic & Biomolecular Chemistry 14, no. 32 (2016): 7754–67. http://dx.doi.org/10.1039/c6ob01139j.

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24

Antonov, Egor E. "“PYRAMIDIC” BELT OF TARPANCHI FORTRESS (THE NORTHWESTERN CRIMEA)." Journal of historical philological and cultural studies 1, no. 71 (2021): 109–25. http://dx.doi.org/10.18503/1992-0431-2021-1-71-109-125.

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25

Yin, Sha, Linzhi Wu, and Steven Nutt. "Stretch–bend-hybrid hierarchical composite pyramidal lattice cores." Composite Structures 98 (April 2013): 153–59. http://dx.doi.org/10.1016/j.compstruct.2012.11.004.

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26

Nakajima, Daiki, Tatsuya Kikuchi, Taiki Yoshioka, et al. "A Superhydrophilic Aluminum Surface with Fast Water Evaporation Based on Anodic Alumina Bundle Structures via Anodizing in Pyrophosphoric Acid." Materials 12, no. 21 (2019): 3497. http://dx.doi.org/10.3390/ma12213497.

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A superhydrophilic aluminum surface with fast water evaporation based on nanostructured aluminum oxide was fabricated via anodizing in pyrophosphoric acid. Anodizing aluminum in pyrophosphoric acid caused the successive formation of a barrier oxide film, a porous oxide film, pyramidal bundle structures with alumina nanofibers, and completely bent nanofibers. During the water contact angle measurements at 1 s after the water droplet was placed on the anodized surface, the contact angle rapidly decreased to less than 10°, and superhydrophilic behavior with the lowest contact angle measuring 2.0°

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27

Jędruszczak, Maria. "The development of weeds sugar beet (Beta vulgaris L.) fields depending on the weeding method used." Acta Agrobotanica 43, no. 1-2 (2013): 173–82. http://dx.doi.org/10.5586/aa.1990.014.

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The process of weed development in a sugar beet field was followed under the climatic conditions of mideastern Poland in 1977. The sugar beet was cultivated on loess soil and weeded using two methods: mechanical and chemical (Pyramin 5 kg/ha just after sowing). The results of the study revealed a specific developmental rythm of the particular weed species on each of the weeded objects. The lise of the herbicide delayed the germination of weeds and limited their repeatability, eliminated sonic species from the weed community as well as delaying the start of generative development of some weeds.

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28

Balakhvantsev, Archil S. "Achaemenid Decoration with an Eight-Pointed Star from Filippovka 1." Vostok. Afro-aziatskie obshchestva: istoriia i sovremennost, no. 2 (2022): 234. http://dx.doi.org/10.31857/s086919080019626-5.

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The article is devoted to the publication of a piece of jewelry with an eight-pointed star – a symbol of the goddess Inanna / Ishtar. The main decorative elements (an eight-pointed star, a filigree made of braids and smooth wire, an end with pyramids of four grain balls, additional elements of chains in the form of wires ending in pyramids of grain on which beads were strung, and drop-shaped pendants decorated with pyramids of four grains, four-bladed pendants, consisting of two thin almond-shaped plates bent at right angles, soldered together along the fold line), as well as the use of cloiso

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29

Kupchishin, A. I., M. N. Niyazov, B. G. Taipova, A. T. Abdukhairova, and G. Sh Yar-Mukhamedova. "THE STUDY OF THE DEFORMATION OF THE PLEXIGLAS BENDING IRRADIATED WITH ELECTRONS." NNC RK Bulletin, no. 1 (March 30, 2019): 126–28. http://dx.doi.org/10.52676/1729-7885-2019-1-126-128.

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Experiments were carried out on the dependence of strain on stress in the test for a flat straight bend of samples of non-irradiated and irradiated corrugated Plexiglas. It is found that with increasing voltage the relative elongation of corrugated samples of Plexiglas (both non-irradiated and irradiated) increases linearly. It is revealed that the irradiation leads to a noticeable change in the deformation-strength characteristics of the material, manifested in a decrease in plasticity. Elongation striped acrylic plastic after irradiation is changed to 20 %, and the pyramid – 40 %. In this ca

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30

Charbonnier, Robin, Pierre Poinsignon, and Thomas Paris. "Du BoP dans le beat, une analyse des transformations numériques dans la musique." Revue Française de Gestion 47, no. 294 (2021): 115–34. http://dx.doi.org/10.3166/rfg.2021.00502.

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Dans un marché de la musique morne, le distributeur numérique Believe s’est développé au point de concurrencer les majors du secteur. Cet article analyse ses choix stratégiques singuliers pour en tirer des enseignements sur les mutations numériques. L’ouverture de Believe à des artistes exclus de l’industrie conduit les auteurs à mobiliser la littérature « bas de la pyramide ». Ils montrent que ce choix est à l’origine d’un modèle qui casse les frontières traditionnelles de l’industrie en mêlant prestation technique pour le plus grand nombre et accompagnement d’artistes sélectionnés.

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Liu, Yingjie, Wenxi Wang, Xiaoyu Zhao, Shudong Zhao, Lai Zou, and Chao Wang. "Acoustic signal-based wear monitoring for belt grinding tools with pyramid-structured abrasives using BO-KELM." Computers in Industry 166 (April 2025): 104235. https://doi.org/10.1016/j.compind.2024.104235.

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Deb, Disha, Harish Rajan, Rajiv Kundu, and R. Mohan. "CFD and Machine Learning based Simulation of Flow and Heat Transfer Characteristics of Micro Lattice Structures." IOP Conference Series: Earth and Environmental Science 850, no. 1 (2021): 012034. http://dx.doi.org/10.1088/1755-1315/850/1/012034.

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Abstract In this paper, systematic CFD analysis using ANSYS Fluent was carried out to generate the dataset for developing the Machine Learning model, which predicts the average final temperature of water and the pressure drop from the set of input parameters considered for applications. There are six micro lattice structures, kagome, tetrahedral, pyramidal, hexagonal, windward bent and hexagonal-windward bent, modelled for this study using FUSION 360 by Autodesk. The study of heat transfer between liquid water and the micro lattice structures realized with the independent variables, initial fl

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Borrego, Gallardo Francisco L. "Le sens et l'étymologie du mot ḫndw". Trabajos de Egiptología. Papers on Ancient Egypt 6 (5 червня 2015): 7–33. https://doi.org/10.25145/j.TdE.2015.06.01.

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This paper reconsiders the original meaning and etymology of a noun referring a kind of a seat, ḫndw, which is documented since the Third Dynasty. From the analysis of the semagrams of its spellings of the Old Kingdom, it has been possible to determine  that very probably ḫndw described a throne or seat whose main feature is having free-standing legs of a medium-sized length. Likewise, in accordance with this aspect, it seems more plausible that the etymon of ḫndw was the 3-lit. verb ḫnd "to tread" (being thus a "treader/treading seat"), and not an alleged verb *ḫnd "to be curve, to bend"

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Mathivathanan, Logesh, Raquel Cruz та Raphael G. Raptis. "A [Cu3(μ3-O)]–pyrazolate metallacycle with terminal nitrate ligands exhibiting point group symmetry 3". Acta Crystallographica Section E Crystallographic Communications 72, № 4 (2016): 492–94. http://dx.doi.org/10.1107/s2056989016003741.

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The trinuclear triangular cuprate anion of the title compound, tris[bis(triphenylphosphoranylidene)ammonium] tris(μ2-4-chloropyrazolato-κ2N:N′)-μ3-oxido-tris[(nitrato-κ2O,O′)cuprate(II)] nitrate monohydrate, (C36H30P2N)[Cu3(C3H2ClN2)3(NO3)3O]NO3·H2O, has point group symmetry 3., with the μ3-O atom located on the threefold rotation axis. The distorted square-pyramidal coordination sphere of the CuIIatom is completed by two N atoms oftrans-bridging pyrazolate groups and a chelating nitrate anion. The complex anion is slightly bent, with the nitrate and pyrazolate groups occupying positions above

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35

Bibbig, Andrea, Roger D. Traub та Miles A. Whittington. "Long-Range Synchronization of γ and β Oscillations and the Plasticity of Excitatory and Inhibitory Synapses: A Network Model". Journal of Neurophysiology 88, № 4 (2002): 1634–54. http://dx.doi.org/10.1152/jn.2002.88.4.1634.

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The ability of oscillating networks to synchronize despite significant separation in space, and thus time, is of biological significance, given that human γ activity can synchronize over distances of several millimeters to centimeters during perceptual and learning tasks. We use computer simulations of networks consisting of excitatory pyramidal cells (e-cells) and inhibitory interneurons (i-cells), modeling two tonically driven assemblies separated by large (≥8 ms) conduction delays. The results are as follows. 1) Two assemblies separated by large conduction delays can fire synchronously at β

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Arzig, Matthias, Michael Salamon, Norman Uhlmann, Bertil A. Johansen, and Peter J. Wellmann. "Growth Conditions and In Situ Computed Tomography Analysis of Facetted Bulk Growth of SiC Boules." Materials Science Forum 924 (June 2018): 245–48. http://dx.doi.org/10.4028/www.scientific.net/msf.924.245.

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Two 3inch SiC boules were grown in a PVT setup using source material of different packing density. During the growth, in-situ computed tomography of the growing boules showed differences in the development of the growth interface. A slightly bent growth interface was found for the smaller packing density. For the higher packing density the resulting crystal exhibits the onset of 6 pyramidal facets on its flanks. Besides that, strong anisotropic lateral growth was found on its (000-1) facet. Numerical simulations show an impact of the powder on the thermal gradient in the growth cell and theref

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Li, Jia, Yujuan Si, Liuqi Lang, Lixun Liu, and Tao Xu. "A Spatial Pyramid Pooling-Based Deep Convolutional Neural Network for the Classification of Electrocardiogram Beats." Applied Sciences 8, no. 9 (2018): 1590. http://dx.doi.org/10.3390/app8091590.

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An accurate electrocardiogram (ECG) beat classification can benefit the diagnosis of the cardiovascular disease. Deep convolutional neural networks (CNN) can automatically extract valid features from data, which is an effective way for the classification of the ECG beats. However, the fully-connected layer in CNNs requires a fixed input dimension, which limits the CNNs to receive fixed-scale inputs. Signals of different scales are generally processed into the same size by segmentation and downsampling. If information loss occurs during a uniformly-sized process, the classification accuracy wil

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Che, Yuhang, Hongyi Bai, Laijun Sun, Yanru Fang, Xinbo Guo, and Shanbing Yin. "Real-Time Detection of Varieties and Defects in Moving Corn Seeds Based on YOLO-SBWL." Agriculture 15, no. 7 (2025): 685. https://doi.org/10.3390/agriculture15070685.

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Sorting corn seeds before sowing is crucial to ensure the varietal purity of the seeds and the yield of the crop. However, most of the existing methods for sorting corn seeds cannot detect both varieties and defects simultaneously. Detecting seeds in motion is more difficult than at rest, and many models pursue high accuracy at the expense of model inference time. To address these issues, this study proposed a real-time detection model, YOLO-SBWL, that simultaneously identifies corn seed varieties and surface defects by using images taken at different conveyor speeds. False detection of damage

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Xu, Xin, Huan-Li Dong, Rui-Li Sang, and Li Xu. "Unprecedented Dawson isomerism induced by a central [WO5] and four 45°-rotated belt square pyramids." Chemical Communications 48, no. 100 (2012): 12177. http://dx.doi.org/10.1039/c2cc36999k.

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FIDELIZ, YASMIN, JOSÉ GERALDO VIDAL VIEIRA, RENATA LÚCIA MAGALHÃES DE OLIVEIRA, RICARDO COSER MERGULHÃO, and JOÃO EDUARDO A. R. DA SILVA. "Os impactos do COVID-19 no consumo de bens básicos e suas implicações na gestão da logística urbana." Revista Brasileira de Transportes 1, no. 2 (2021): 98–145. http://dx.doi.org/10.12660/rbt.v1n2.2021.83946.

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O objetivo desta pesquisa é caracterizar o comportamento do consumidor e a percepção do lojista quanto às compras de suprimentos básicos, antes e durante o COVID-19, assim como relacionar os comportamentos e percepções dos agentes com os desafios da logística urbana de abastecimento do mercado. Foram aplicados dois questionários em regiões classificadas como BOP (Base of Pyramid) e feitas análises descritivas e multivariadas por meio da análise de cluster. A pesquisa mostra que há um aumento na frequência de compra dos consumidores no período de pandemia, o que aumenta também a demanda dos loj

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Wei, Zhen Hua, Xue Sen Li, Shi Bo Song, and Le Zhang. "Abnormal Behavior Recognition Based on Multi-Information Decision in Power Generation." Applied Mechanics and Materials 121-126 (October 2011): 2482–86. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.2482.

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So far most research of human behavior recognition focus on simple individual behavior, such as wave, crouch, jump and bend. This paper will focus on abnormal behavior with objects carrying in power generation. Such as using mobile communication device in main control room, taking helmet off during working and using umbrella in high place. In global environment, there are some almost fixed features for portable objects of workers, such as clothes. So we adopted edge detecting by color tracking to recognize object in worker. The sequence of 3D human behavior data would be expressed by geometric

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Dias, H. V. Rasika, and Jose Thankamani. "Thallium(I) complexes of fluorinated bis- and tris(pyrazolyl)borate ligands: [H2B{3,5-(CF3)2pz}2]Tl and [HB{3,5-(CF3)2pz}3]Tl." Acta Crystallographica Section C Crystal Structure Communications 69, no. 9 (2013): 959–62. http://dx.doi.org/10.1107/s0108270113016612.

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X-ray crystal structural data at 100 (2) K for the thallium(I) complex of a fluorinated bis(pyrazolyl)borate, {bis[3,5-bis(trifluoromethyl)-1H-pyrazol-1-yl-κN2]borato}thallium(I), [Tl(C10H4BF12N4)], abbreviated as [H2B{3,5-(CF3)2pz}2]Tl, and the related tris(pyrazolyl)borate, {tris[3,5-bis(trifluoromethyl)-1H-pyrazol-1-yl-κN2]borato}thallium(I), [Tl(C15H4BF18N6)], abbreviated as [HB{3,5-(CF3)2pz}3]Tl, are reported. [H2B{3,5-(CF3)2pz}2]Tl features a two-coordinate TlIatom with a bent geometry and a boat-shaped bis(pyrazolyl)borate ligand. It also has several additional inter- and intramolecular

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Wu, Ligang, Liang Zhang, Le Chen, Jianhua Shi, and Jiafu Wan. "A Lightweight and Multisource Information Fusion Method for Real-Time Monitoring of Lump Coal on Mining Conveyor Belts." International Journal of Intelligent Systems 2023 (September 4, 2023): 1–11. http://dx.doi.org/10.1155/2023/5327122.

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Since the underground transportation of coal mainly relies on the mine conveyor belt to complete, the mine conveyor belt with large pieces of coal will affect transportation safety. Therefore, to address the problem of real-time monitoring of lump coal, the method Ghost-ECA-Bi FPN (GEB) YOLOv5 for lump coal in the process of mining conveyor belt transportation is proposed based on a lightweight neural network and multisource information fusion. First, the image preprocessing is performed by adaptive histogram equalization, which reduces the influence of coal dust, dust, and uneven lighting on

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Tanabe, Mitsuo, Beat H. Gähwiler, and Urs Gerber. "L-Type Ca2+ Channels Mediate the Slow Ca2+-Dependent Afterhyperpolarization Current in Rat CA3 Pyramidal Cells In Vitro." Journal of Neurophysiology 80, no. 5 (1998): 2268–73. http://dx.doi.org/10.1152/jn.1998.80.5.2268.

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Tanabe, Mitsuo, Beat H. Gähwiler, and Urs Gerber. L-type Ca2+ channels mediate the slow Ca2+-dependent afterhyperpolarization current in rat CA3 pyramidal cells in vitro. J. Neurophysiol. 80: 2268–2273, 1998. Single-electrode voltage-clamp recordings were obtained from CA3 pyramidal cells in rat hippocampal organotypic slice cultures, and the slow Ca2+-dependent K+ current or afterhyperpolarization current ( I AHP) was elicited with brief depolarizing voltage jumps. The slow I AHP was suppressed by the selective L-type Ca2+ channel antagonists isradipine (2 μM) or nifedipine (10 μM). In contra

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Zhao, Xiaoyu, Lai Zou, Wenxi Wang, Yilin Mu, Yingjie Liu, and Chao Wang. "Elucidating wear evolution and its impact on material removal via modeling for curved surface belt grinding with pyramid-structured abrasives." Wear 572-573 (July 2025): 206060. https://doi.org/10.1016/j.wear.2025.206060.

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Goh, Qi-Lun, Pei-Song Chee, Eng-Hock Lim, and Danny Wee-Kiat Ng. "An AI-Assisted and Self-Powered Smart Robotic Gripper Based on Eco-EGaIn Nanocomposite for Pick-and-Place Operation." Nanomaterials 12, no. 8 (2022): 1317. http://dx.doi.org/10.3390/nano12081317.

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High compliance and muscle-alike soft robotic grippers have shown promising performance in addressing the challenges in traditional rigid grippers. Nevertheless, a lack of control feedback (gasping speed and contact force) in a grasping operation can result in undetectable slipping and false positioning. In this study, a pneumatically driven and self-powered soft robotic gripper that can recognize the grabbed object is reported. We integrated pressure (P-TENG) and bend (B-TENG) triboelectric sensors into a soft robotic gripper to transduce the features of gripped objects in a pick-and-place op

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Yang, Hui, Songcheng Jiang, Yan Wang, and Hong Xiao. "Fluid–Structure Coupling and Aerodynamic Performance of a Multi-Dimensional Morphing Wing with Flexible Metastructure Skin." Aerospace 10, no. 8 (2023): 678. http://dx.doi.org/10.3390/aerospace10080678.

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A multi-dimensional morphing wing skeleton mechanism is proposed with double-sided triangular pyramid units, which can realize continuous variable span-wise bend, span-wise twist, and sweep. A lockable morphing unit is designed, and its mechanism/structure characteristics, degree of freedom, and the deformable function of its deformable wing skeleton mechanism are analyzed. One kind of flexible skin is proposed to meet the performance requirements, consisting of an internal metastructure and a flexible surface bonded on both sides. The morphing wing skeleton mechanism and the equivalent treate

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Xu, Xin, Huan-Li Dong, Rui-Li Sang, and Li Xu. "ChemInform Abstract: Unprecedented Dawson Isomerism Induced by a Central [WO5] and Four 45°-Rotated Belt Square Pyramids." ChemInform 44, no. 12 (2013): no. http://dx.doi.org/10.1002/chin.201312019.

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Yang, Bo Sung, Jin Cheng Yeh, Ming Shin Tsai, et al. "Dynamic Frictions between AISI 316L and 3M^TM Trizact^TM Structured Abrasive Belts during Mirror-Like Polishing." Key Engineering Materials 642 (April 2015): 227–30. http://dx.doi.org/10.4028/www.scientific.net/kem.642.227.

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polishing is an essential process for deriving of the mirror-like surface of the AISI 316L stainless steel to minimize the surface roughness. Sliding, plowing and cutting, the fundamental mechanisms of abrasive machining, are occurred during the polishing and then would decrease the roughness on the surface. By 3MTM TrizactTM structured abrasive belts, the previous stainless steel are polished. Pyramid arrays containing the abrasives and epoxy formed on the belt give the abrasive machining. The glass transition and degradation temperatures of epoxy are about 150 and 250 degrees, respectively.

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Reinders, Jordan D., William J. Moar, Graham P. Head, Safeer Hassan, and Lance J. Meinke. "Effects of SmartStax® and SmartStax® PRO maize on western corn rootworm (Diabrotica virgifera virgifera LeConte) larval feeding injury and adult life history parameters." PLOS ONE 18, no. 7 (2023): e0288372. http://dx.doi.org/10.1371/journal.pone.0288372.

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Field-evolved resistance of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, to Bacillus thuringiensis Berliner (Bt) proteins Cry3Bb1 and Cry34/35Ab1 (now classified as Gpp34Ab1/Tpp35Ab1) expressed in the pyramid SmartStax® has been documented in areas of the United States (U.S.) Corn Belt. SmartStax® PRO is a recently registered rootworm-active pyramid containing the same Bt proteins expressed in SmartStax® plus DvSnf7 dsRNA. Little to no published data is available comparing efficacy of the technologies or potential effects of dietary exposure on adult WCR fitness. Th

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