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Статті в журналах з теми "Indented Head"

Автор: Grafiati

Опубліковано: 10 січня 2023

Оновлено: 31 липня 2025

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1

Ebsary, B. A. "Ceramotylenchus tesselatus n. gen., n. sp. and Pleurotylenchus minor n. sp. (Nematoda: Tylenchida) from Alabama." Canadian Journal of Zoology 64, no. 1 (1986): 238–42. http://dx.doi.org/10.1139/z86-037.

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A new genus and species of Duosulciinae and a new species of Pleurotylenchus are described and illustrated. Ceramotylenchus tesselatus n. gen., n. sp. is distinguished by having a cuplike oral disc, two crenate lateral incisures, absence of lateral vulval flaps, and alternating rows of blocks on the head and body that gives a tilelike appearance. Pleurotylenchus minor n. sp. is distinguished from P. sachsi by a smaller body size, more posterior vulva, shorter stylet, laterally indented head annules, and by the lateral field that begins on the first body annule.

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2

Charchar, João, Maria Jose Charchar, Jonathan Eisenback, and Maria Esther Boiteux. "Meloidogyne pisi n. sp. (Nematoda: Meloidogynidae), a root-knot nematode parasitising pea in Brazil." Nematology 10, no. 4 (2008): 479–93. http://dx.doi.org/10.1163/156854108784513905.

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AbstractMeloidogyne pisi n. sp. is described and illustrated from specimens obtained from roots of pea cv. Mikado in Brasilia, Brazil. The female perineal pattern is variable in shape, most are rounded to ovoid, whereas others have a moderately high, squarish dorsal arch, and can be marked with several striae parallel to the vulva or may be nearly free of striae. Lateral fields may contain a few irregular, wavy, transverse striae or be difficult to discern. Female medial lips are wide and long, sometimes with distinctly indented outer margins; the lateral lips are large and triangular, head an

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3

Folęga, Piotr. "Impact of Structural Characteristics of Flexspline on the Stresses Occurring at the Tooth Space Bottom." Advanced Materials Research 1036 (October 2014): 631–36. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.631.

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The author of the article applied the boundary element method (BEM) to determine stresses occurring in a toothed rim of a flexspline. The relevant numerical calculations were conducted using software developed at the Faculty of Transport of the Silesian University of Technology. The numerical analysis conducted for flexsplines entailed the impact exerted by parameters of an indented toothed flexspline rim (number of teeth, addendum modification coefficient) and of a gear tool (gear tool head curve radius, pressure angle) on values of the stresses occurring at the tooth space bottom. Results of

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4

BRUCE, NIEL L. "A new deep-water species of Natatolana (Crustacea: Isopoda: Cirolanidae) from the Chatham Rise, eastern New Zealand." Zootaxa 265, no. 1 (2003): 1. http://dx.doi.org/10.11646/zootaxa.265.1.1.

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Natatolana rekohu sp. nov. from the Chatham Rise, off southeastern New Zealand is described and figured. Natatolana rekohu was collected at a depth of 2799 metres, close to the greatest recorded depth for this genus. The species is a scavenger, and was feeding on dead fish in a sediment trap. Natatolana rekohu is characterised by: reduced eyes; strongly indented anterior margin of the head; pentagonal frontal lamina, with weakly convex lateral margins; pleonites 1 and 2 not produced, 3 weakly and pleonite 4 rounded; pereopods 1 and 2 usually with 5 or 6 setae on the propodal palm. In males the

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5

Wang, Bo, Kathleen M. C. Sullivan, and Kathy Beckingham. "Drosophila Calmodulin Mutants With Specific Defects in the Musculature or in the Nervous System." Genetics 165, no. 3 (2003): 1255–68. http://dx.doi.org/10.1093/genetics/165.3.1255.

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Abstract We have studied lethal mutations in the single calmodulin gene (Cam) of Drosophila to gain insight into the in vivo functions of this important calcium sensor. As a result of maternal calmodulin (CaM) in the mature egg, lethality is delayed until the postembryonic stages. Prior to death in the first larval instar, Cam nulls show a striking behavioral abnormality (spontaneous backward movement) whereas a mutation, Cam7, that results in a single amino acid change (V91G) produces a very different phenotype: short indented pupal cases and pupal death with head eversion defects. We show he

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6

Taylor, Blake E. S., Irene Say, Pratit Patel, and Luke D. Tomycz. "Microsurgical Clip Ligation of an Unruptured Azygos Bifurcation Aneurysm Indented by the Falx Cerebri: 3-Dimensional Operative Video." Operative Neurosurgery 19, no. 3 (2020): E294. http://dx.doi.org/10.1093/ons/opz393.

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Abstract Dissecting pericallosal aneurysms from the falx cerebri is technically challenging, as one must release the adherent dome but minimize shearing injury, which could result in intraoperative rupture. We discuss a 51-yr-old woman with a history of hypertension and smoking who presented with severe headaches and was found to have a 6-mm unruptured, multilobulated pericallosal aneurysm abutting the falx, with anterior and superior projecting domes on either side. She also had an azygos anterior cerebral artery (ACA), a rare anatomic variant associated with pericallosal aneurysms, where bot

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7

Castillo, Pablo, Alberto Troccoli, and Nicola Vovlas. "Hemicriconemoides macrodorus n. sp. with observations on two other species of the genus (Nematoda: Criconematidae)." Nematology 2, no. 4 (2000): 395–405. http://dx.doi.org/10.1163/156854100509259.

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AbstractHemicriconemoides macrodorus n. sp. is described and illustrated from a bisexual population collected in a natural habitat at Santa Elena, Jaén, southern Spain. The new species falls into the 'group 2', based on lip patterns (Decraemer & Geraert, 1992), which contains 13 other species characterised by a cephalic region with an offset, raised, narrower oral disc, followed by broader head annuli. The main distinctive characters of the new species are: lip region truncate, very long stylet (90-100 μ m), long body 548-750 μ m, R = 127-148, conical tail, VL/VB = 1.0-1.5, spined juvenile

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8

Putra, I. B. Werdi, Yohanes Setiyo, and I. Gusti Ngurah Apriadi Aviantara. "Kajian Kualitas Beras Sosoh Dari Berbagai Macam Ukuran Daya Mesin Penggiling." Jurnal BETA (Biosistem dan Teknik Pertanian) 8, no. 1 (2019): 130. http://dx.doi.org/10.24843/jbeta.2020.v08.i01.p16.

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Rice is a staple food for the people of Indonesia. Even though Indonesia is an agrarian country, Indonesia currently imports rice. In producing rice from rice there are obstacles. One of the main obstacles is post-harvest handling of rice with high yield loss during post-harvest. The amount of post-harvest loss occurs because most farmers still use traditional methods or the handling is not good and right. The purpose of this study was to determine the relationship between the capacity of the grinding machine and the quality of sosoh rice produced by the mill and to know the quality comparison

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9

Gao, Jinling, Nesredin Kedir, Boon Him Lim, Yizhou Nie, Xuedong Zhai, and Weinong Chen. "Transverse Loading on Single High-Performance Fibers by Round-Head Indenters and the Fibers’ Failure Visualization." Fibers 10, no. 6 (2022): 48. http://dx.doi.org/10.3390/fib10060048.

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High-performance fibers are well-known for their high stiffness and strength under axial tension. However, in their many applications as critical components of textiles and composites, transverse loads widely exist in their normal service life. In this study, we modified a micro material testing system to transverse load single fibers using round-head indenters. By integrating the loading platform with the Scanning Electron Microscopy (SEM) operating at a low-vacuum mode, we visualized the failure processes of fibers without conductive coatings. Post-fracture analysis was conducted to provide

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10

Zhu, Y., L. Zhou, Ying Xue Yao, and Gui Wen Kang. "Molecular Dynamics Simulation for Single Crystal Aluminum Nano-Indentation Effect by Indenter Radius." Applied Mechanics and Materials 10-12 (December 2007): 401–5. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.401.

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Three dimension indenter model was established to replace the ideal shape indenter model in the study of nano-indentation simulation. The limitation of short of comparing to actual condition can be solved. Single crystal aluminum surface nano-indentation on the condition of arc indenter is researched by molecular dynamic simulation. The influences of different arc radius of indenter head to testing results are discussed and compared to experiment results. The results show that The measured hardness value increases with indenter head arc radius on the same indentation depth condition. With the

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11

Kikovic, Sasa, Ivan Tavcar, Tamara Dragovic, et al. "Insulinoma- how to localize the tumor?" Vojnosanitetski pregled 75, no. 12 (2018): 1172–77. http://dx.doi.org/10.2298/vsp160222049k.

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Background/Aim. Arterial stimulation with calcium and venous sampling (ASVS) enables us to reach the goal of avoiding that any patient with insulinoma undergoes a blind surgical exploration. Since ASVS is both a functional and morphological localization procedure, its sensitivity is not influenced by factors that are causing the insensitivity of usual anatomical and morphological procedures. Based on our own experience in preoperative localization of insulinoma, we indented to show why we believe that ASVS should be performed to all patients regardless of data collected from other preoperative

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12

C., T. E. "SUCCESSFUL MANAGEMENT OF PROTRUSION OF THE TONGUE IN A FIVE-YEAR-OLD ENGLISH BOY (1805)." Pediatrics 79, no. 4 (1987): 514. http://dx.doi.org/10.1542/peds.79.4.514.

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The following case report published in 1805 describes the successful treatment of a markedly protruding tongue in a young boy. The method is so simple that one wonders whether the author has not omitted something in the history. On Thursday, May 24, 1804, Ralph Heighington, five years old, was admitted into the Sunderland Dispensary. He had been much distressed with worms, and for this complaint he was put under my charge. He had every appearance of scrofula, such as ophthalmia tarsi, and marks under the chin from scrofulous sores, etc.; but what chiefly attracted my attention was his tongue,

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13

Usami, Hatsuhiko, Tomoya Kadomae, Daisuke Igimi, and Mineo Mizuno. "Effect of Indenter Materials on Indentation Fracture of Alumina Ceramics." Key Engineering Materials 290 (July 2005): 23–30. http://dx.doi.org/10.4028/www.scientific.net/kem.290.23.

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The present study describes the effect of indenter materials on Hertzian cracking behavior of alumina ceramics in sphere indentation. Numerical analysis (FEM) was carried out to investigate the influence of the frictional resistance at the interface due to the elastic mismatch between the indenter and the flat specimen on the stress distribution near the contact area. Two kinds of alumina ceramics with different mechanical properties were used for the flat specimen. Materials of the sphere indenter were cemented carbide, silicon nitride, alumina and hardened steel. The indenter was penetrated

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14

Pakkratoke, Montree, Shinnosuke Hirata, Chisato Kanamori, and Hisayuki Aoyama. "Development of Microscopic Hardness and Stiffness Investigation System with Microrobot 2nd Report, Vision Based Precise Navigation." Journal of Robotics and Mechatronics 25, no. 1 (2013): 97–105. http://dx.doi.org/10.20965/jrm.2013.p0097.

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A microsurface measurement system that is composed of the microrobot with the indenter and a vision based navigation system is proposed for investigating hardness and stiffness of such microparts. Here the tiny robot with the electromagnetic legs and the piezo elements incorporates with an electromagnetic driven microforce generator. This force generator can provide small forces up to 17 mN with 50 µN resolutions and push down the microindenter to the surface. The displacement of the indenter head can be also measured by the Linear Valuable Differential Transformer (LVDT) on machine. Thus, thi

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15

Salim, M. M., D. M. France, and C. B. Panchal. "Heat Transfer Enhancement on the Outer Surface of Spirally Indented Tubes." Journal of Enhanced Heat Transfer 6, no. 5 (1999): 327–41. http://dx.doi.org/10.1615/jenhheattransf.v6.i5.10.

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16

Panchal, C. B., and D. M. France. "Heat transfer and pressure drop in large pitch spirally indented tubes." International Journal of Heat and Mass Transfer 36, no. 3 (1993): 565–76. http://dx.doi.org/10.1016/0017-9310(93)80032-p.

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17

Lee, Sang Chun, Sang Chul Nam, and Tae Gon Ban. "Performance of heat transfer and pressure drop in a spirally indented tube." KSME International Journal 12, no. 5 (1998): 917–25. http://dx.doi.org/10.1007/bf02945559.

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18

Johnson, Matthew, and John W. Bond. "Visualizing Indented Writing on Thermal Paper by the Controlled Application of Heat." Journal of Forensic Sciences 62, no. 5 (2017): 1366–71. http://dx.doi.org/10.1111/1556-4029.13400.

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19

Mareš, V., and J. Blahovec. "Variation of the tree ring micro-hardness demonstrated on spruce wood." Journal of Forest Science 50, No. 3 (2012): 135–41. http://dx.doi.org/10.17221/4608-jfs.

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Micro-hardness was used for the study of wood structure (Norway spruce) in the line perpendicular to tree rings (radial surface). The steel indentor 0.25 mm in diameter with flat head was used for this purpose. The individual penetration tests were performed at constant velocity 0.0167 mm/sinto a depth of 0.3 mm. Local wood strength was defined as the mean pressure on the indentor head at 0.02 mm penetration. The set of tests (~ 320) gave information about stress variation in dependence on the location of the test place in the tested surface. The stress was understood as a parameter describing

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20

Bunonyo, K., C. Israel-Cookey, and E. Amos. "MHD Oscillatory Flow of Jeffrey Fluid in an Indented Artery with Heat Source." Asian Research Journal of Mathematics 7, no. 4 (2017): 1–13. http://dx.doi.org/10.9734/arjom/2017/37604.

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21

Ivanov, I. A., and G. E. Persiyanova. "Increasing the efficiency of heating systems through the use of direct contact heat exchange." E3S Web of Conferences 498 (2024): 01007. http://dx.doi.org/10.1051/e3sconf/202449801007.

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You should leave 8 mm of space above the abstract and 10 mm after the abstract. The heading Abstract should be typed in bold 9-point Arial. The body of the abstract should be typed in normal 9-point Times in a single paragraph, immediately following the heading. The text should be set to 1 line spacing. The abstract should be centred across the page, indented 17 mm from the left and right page margins and justified. It should not normally exceed 200 words.

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22

Pakkratoke, Montree, Shinnosuke Hirata, Chisato Kanamori, and Hisayuki Aoyama. "Development of Microscopic Hardness and Stiffness Investigation System with MicroRobot." Journal of Robotics and Mechatronics 24, no. 1 (2012): 123–32. http://dx.doi.org/10.20965/jrm.2012.p0123.

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In order to investigate micro hardness and stiffness in a special chamber, the development of a small-force generator mechanism and a piezodriven microrobot is described in this paper. This small-force generator is simply composed of a Voice Coil Actuator (VCA) and the tandem leaf spring mechanism. The small force can be controlled by an electrical current, which is supplied to the coil and positioned precisely at the balance point with the parallel leaf spring with no mechanical friction. The full bridge strain gauges on both sides of the double leaf spring can detect a small force that is ap

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23

Salman, Mohammad, Myeong Hyeon Park, Ranchan Chauhan, and Sung Chul Kim. "Experimental analysis of single loop solar heat collector with jet impingement over indented dimples." Renewable Energy 169 (May 2021): 618–28. http://dx.doi.org/10.1016/j.renene.2021.01.043.

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24

Ogulu, A., and T. M. Abbey. "Simulation of heat transfer on an oscillatory blood flow in an indented porous artery." International Communications in Heat and Mass Transfer 32, no. 7 (2005): 983–89. http://dx.doi.org/10.1016/j.icheatmasstransfer.2004.08.028.

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25

Kessentini, Amir, Marwa Allouch, Hanen Jrad, et al. "Mathematical Formulation and Numerical Simulation of the Mechanical Behavior of Ceramic/Metal (TiB/Ti) FG Sheets Subjected to Spherical Indenter." Mathematics 12, no. 2 (2024): 209. http://dx.doi.org/10.3390/math12020209.

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The main motivation for the present work is to provide an improved description of the response of Functionally Graded (FG) structures under a spherical indenter, considering material nonlinearities. This is achieved through the implementation of elastoplastic material behavior using integration points to avoid the division of the structure into multiple layers. The current paper proposes a numerical investigation into the mechanical response of functionally graded materials (FGMs) in contact with a rigid hemispherical head indenter. The numerical model considers both the Mori–Tanaka model and

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26

Bérces, G., J. Lendvai, A. Juhász, and N. Q. Chinh. "Dynamic characterization of Portevin–Le Chatelier instabilities occurring in depth-sensing microhardness tests." Journal of Materials Research 18, no. 12 (2003): 2874–81. http://dx.doi.org/10.1557/jmr.2003.0401.

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Characteristic properties of plastic instabilities were studied using depth-sensing microhardness experiments on an Al–3.3 wt.% Mg alloy and computer simulations based on a macroscopic dynamic model of the experimental setup. A stepwise increase was observed in the indentation depth versus load (d-F) curves measured in constant loading rate mode, indicating hardness oscillations around a nearly constant value of the conventional dynamic microhardness. These oscillations were correlated with plastic instabilities starting from the contact surface between the sample and the indenter head. Taking

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27

Wu, T. W., and C.-K. Lee. "Micro-impact technique and its applications." Journal of Materials Research 9, no. 3 (1994): 797–804. http://dx.doi.org/10.1557/jmr.1994.0797.

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A micro-impact tester has been designed and built by using a piezoelectric impact hammer as an impactor driver. During the course of an impact process, force interactions between the impactor and target surfaces were monitored continuously by a miniaturized piezoelectric loadcell embedded in the flying head assembly. A 3-sided pyramidal diamond indenter (Berkovich indenter) was used as an impactor. After having fully characterized such an impact system, the trajectory of the impactor can be calculated by using the corresponding prerecorded impact force interaction in a simulation program. The

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28

Squires, M. C., J. Latimer, R. D. Adams, and C. G. Maher. "Indenter head area and testing frequency effects on posteroanterior lumbar stiffness and subjects' rated comfort." Manual Therapy 6, no. 1 (2001): 40–47. http://dx.doi.org/10.1054/math.2000.0379.

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29

Vansse, Olivier, Ute Kutschera, Béatrice Legendre, and Frédéric Osterstock. "Quantitative Approach of the Effective Coefficient of Heat Transfer During Quenching Vickers Indented Ceramic Samples." Key Engineering Materials 132-136 (April 1997): 607–10. http://dx.doi.org/10.4028/www.scientific.net/kem.132-136.607.

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30

Umesh, V., S. Bala Vignesh, and B. Raja. "A Study on Nucleate Boiling Heat Transfer Characteristics of Acetone on Smooth and Indented Surfaces." Experimental Heat Transfer 29, no. 3 (2015): 414–25. http://dx.doi.org/10.1080/08916152.2015.1012570.

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31

Dong, Z. F., and M. A. Ebadian. "Convective heat transfer in the entrance region of a rectangular duct with two indented sides." Computational Mechanics 8, no. 4 (1991): 269–78. http://dx.doi.org/10.1007/bf00577380.

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32

Tu, T. Huynh. "From Demand for Asiatic Labor to Importation of Indentured Chinese Labor: Race Identity in the Recruitment of Unskilled Labor for South Africa's Gold Mining Industry, 1903–1910." Journal of Chinese Overseas 4, no. 1 (2008): 51–68. http://dx.doi.org/10.1163/179325408788691516.

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AbstractDespite international protests against bonded labor, the flow of indentured laborers during the 19th and early decades of the 20th centuries was extensive compared to the earlier centuries. The focus of this article is on the particularity of the “Chinese coolies experiment” in South Africa's gold mining industry which commenced in 1904. This 20th-century episode of indentured labor is notable for several reasons, and it serves as a springboard for the discussion of some fundamental issues in capitalist development, labor and identity formation. This article emphasizes the last, examin

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33

Rollastin, Boy. "Uji Penetrasi Spesimen Pada Sungkup Helm Berbahan Biokomposit Sebagai Bahan Alternatif Pengganti Helm." Manutech : Jurnal Teknologi Manufaktur 10, no. 01 (2019): 9–15. http://dx.doi.org/10.33504/manutech.v10i01.53.

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The correct function of helmets is to protect motorcycle riders from head injuries during accident and head collision. Most of helmets existing in markets are produced by helmet factories. The price of used materials is quite high because those materials are still imported from overseas. It causes the increasing of helmet production cost and the helmet prices in the market become quite expensive. This research aims to find how a biocomposite material (85 % PP, 10 % husk of rice and 5 % MAPP) can be used as an alternative replacement material for helmet lid preparation on the condition of passi

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34

Zhang, Min, Zhijie Zhu, Yang Zeng, Jingxi Liu, and Zhiqiang Hu. "Analytical Method for Evaluating the Impact Response of Stiffeners in a Ship Side Shell Subjected to Bulbous Bow Collision." Mathematical Problems in Engineering 2020 (April 14, 2020): 1–11. http://dx.doi.org/10.1155/2020/5025438.

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This paper addresses a simplified analytical method for evaluating the impact responses of the stiffeners in a ship side shell subjected to head-on collision by a bulbous bow. The stiffeners are classified as the “central stiffener” and the “lateral stiffener” according to their relative position to the bulbous bow. In analytical predictions, it is assumed that the flexural bending of the central stiffener and plate occurs simultaneously. However, the deformation mode of the central stiffener outside the indenter contact region is simplified as linear to derive its deformation resistance. The

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35

Marsan, Anne L., Yifan Chen, and Paul J. Stewart. "Surface Feature Parametrization Analogous to Conductive Heat Flow." Journal of Computing and Information Science in Engineering 2, no. 2 (2002): 77–85. http://dx.doi.org/10.1115/1.1510860.

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Direct Surface Manipulation (DSM) allows a designer to add a raised or indented feature to an existing surface. The user bounds the feature with a closed curve, and defines an influence center that indicates the point or curve of maximum displacement from the original surface. As we move radially outward from the influence center to the boundary curve, the magnitude of displacement is scaled gradually by a one-dimensional polynomial basis function whose values range from 0 to 1. In this paper we present a new technique for assigning parameter values in the radial direction, i.e., u, to points

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36

Lee, Dong-Han, Do-Won Kwon, Minho Jang, Jung Eun Shin, and Chang-Hee Kim. "Positional nystagmus in pneumolabyrinth: a case report." Research in Vestibular Science 24, no. 2 (2025): 107–12. https://doi.org/10.21790/rvs.2025.011.

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This report describes a patient with left-sided pneumolabyrinth following a temporal bone fracture and demonstrates characteristic positional nystagmus observed in this condition while discussing its mechanism. A previously healthy 38-year-old man presented with left-sided hearing loss, tinnitus, and positional vertigo after blunt head trauma. Temporal bone computed tomography revealed pneumolabyrinth in the ampulla of the left lateral semicircular canal (LSCC). Pure tone audiometry showed mixed hearing loss on the left (bone, 13.8 dB; air, 42.5 dB). Video Frenzel examination revealed directio

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37

Li, Zhengjie, Caixia Jiang, Gaofei Wang, Nan Zhao, Yue Lu, and Kun Liu. "Experimental and Numerical Study on Damage Characteristics of Web Frame Structure Under Conical Impact." Journal of Marine Science and Engineering 13, no. 5 (2025): 893. https://doi.org/10.3390/jmse13050893.

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This paper investigates the dynamic performance of web frame structures under the impact of a conical hammer head. Compared with existing research on flat plates and stiffened panels, web frame structures exhibit significant differences in load-bearing mechanisms and design principles. To address these limitations, a series of drop-weight impact tests under different impact conditions are conducted, and the effects of drop heights on the dynamic responses of the web frame structure are systematically analyzed. By measuring the impact force responses and damage shapes, nonlinear dynamic charact

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38

Karimov, Isroil Mirzaevich, Utkir Abdunazar ugli Urolov, and Nurillo Raximovich Kulmuratov. "MOVEMENT OF AN INDENTOR WITH A CONICAL HEAD IN A PRESSURE-PLASTIC INCOMPRESSIBLE MEDIUM." Theoretical & Applied Science 146, no. 06 (2025): 55–58. https://doi.org/10.15863/tas.2025.06.146.11.

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39

Angella, Giuliano, Alessandra Fava, Roberto Montanari, Maria Richetta, and Alessandra Varone. "Flat-Top Cylinder Indenter Examination of Duplex Stainless Steel 2205 after Different Heat Treatments." Metals 7, no. 5 (2017): 178. http://dx.doi.org/10.3390/met7050178.

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40

Baiocco, Gabriele, Daniele Almonti, Silvio Genna, Gennaro Salvatore Ponticelli, Vincenzo Tagliaferri, and Nadia Ucciardello. "Neural network implementation for the prediction of load curves of a flat head indenter on hot aluminum alloy." Procedia CIRP 88 (2020): 543–48. http://dx.doi.org/10.1016/j.procir.2020.05.094.

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41

Kharkwal, Himanshi, Mohammed Zamoum, Magali Barthés, François Lanzetta, Hervé Combeau, and Lounès Tadrist. "Vapor bubble on a single nucleation site : Temperature and heat flux measurements." Journal of Physics: Conference Series 2766, no. 1 (2024): 012148. http://dx.doi.org/10.1088/1742-6596/2766/1/012148.

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Abstract This work aimed at gaining a detailed understanding of heat transfer when boiling occurs on a heated substrate. More specifically, this work focuses on thermal transfers occurring at wall-fluid interfaces at the transition between natural convection and nucleate boiling regimes in pool boiling experiments. To avoid parasitic effects, the vapor bubble is created at a single artificial nucleation site. The boiling cell is instrumented with sensors for temperature measurement, pressure control, and parietal heat flux measurement. The fluid tested is Fluorinert FC-72. For providing a boil

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42

Quang, Nguyen Huu, and Alan C. Lin. "Automatic Side-Cores Construction in Injection Plastic Mold Design for Free-Form NURBS Surface Models." Applied Mechanics and Materials 275-277 (January 2013): 2635–39. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2635.

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In computer-aided design for moldings, automatic generation of side-cores is a crucial design task that has an influence on the entire mold structure and manufacturing cost. This paper proposes a synthetic approach for creating the side-cores of free-form NURBS surface models. Based on the geometric properties of entities, surfaces of undercut features which are molded for side-cores are identified. After determining the withdrawal directions for each group of undercut’s surface features, the number of side-cores is optimized. The heads and the bodies of side-cores are finally obtained through

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43

Liu, Xiaoshuang, Yazhe Wang, Xi Zhang, et al. "Crack healing behavior of 4H-SiC: Effect of dopants." Journal of Applied Physics 133, no. 14 (2023): 145704. http://dx.doi.org/10.1063/5.0140922.

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We investigate the crack-healing mechanism of 4H silicon carbide (4H-SiC) and reveal the effect of dopants on the crack-healing behavior of 4H-SiC. Vickers indentation tests and thermal annealing are utilized to generate cracks and heal cracks in 4H-SiC, respectively. High-temperature thermal annealing in the air atmosphere is found to be capable of effectively healing indentation-induced cracks and releasing indentation-induced stress in undoped 4H-SiC by the formation and viscous flow of glass phase SiO2. Nitrogen (N) doping is found to assist the atomic diffusion of 4H-SiC. The crack healin

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44

Rollastin, Boy. "Material Biokomposit Sebagai Material Alternatif Sungkup Helm." Manutech : Jurnal Teknologi Manufaktur 9, no. 01 (2019): 6–11. http://dx.doi.org/10.33504/manutech.v9i01.24.

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A Helmet is an equipment that should be used by motorcycle riders. The correct function of helmets is to protect motorcycle riders from head injuries during accident and head collision. Most of helmets existing in markets are produced by helmet factories. Those helmets have to meet certain standards, including the use of materials to construct the helmet lid and the testing processes on the helmet itself. The price of used materials is quite high because those materials are still imported from overseas. It causes the increasing of helmet production cost and the helmet prices in the market beco

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45

Permyakova, I. E., and M. V. Kostina. "Deformation and fracture of heat treated ribbon of amorphous Co – Fe – Cr – Si – B alloy during indentation." Izvestiya. Ferrous Metallurgy 67, no. 5 (2024): 556–62. https://doi.org/10.17073/0368-0797-2024-5-556-562.

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Indentation is an attractive method for studying the deformation behavior of amorphous alloys for a number of reasons: not being specific to the sample size, these tests are easy to perform and do not lead to macrofracture; plastic deformation in the material is locally limited, which facilitates the study of plastic flow in the zones surrounding and located under the indenter; direct comparison of indentation results with responses, for example, to bending or tension further makes the indentation method an effective “probe” for understanding the physics of plastic deformation and fracture of

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46

Dai, L. Y., G. Y. Niu, and M. Z. Ma. "Microstructure Evolution and Nanotribological Properties of Different Heat-Treated AISI 420 Stainless Steels after Proton Irradiation." Materials 12, no. 11 (2019): 1736. http://dx.doi.org/10.3390/ma12111736.

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In this paper, low-energy proton irradiation experiments with different cumulative fluences were performed on samples of AISI 420 stainless steel that were either annealed or tempered at 600 or 700 °C. The effects of the cumulative proton irradiation fluence on the evolution of the microstructure of AISI 420 were studied by transmission electron microscopy (TEM). Scratch tests were performed using a Tribo Indenter nanomechanical tester, in order to investigate the effects of the cumulative fluence on the tribological properties of the AISI 420 stainless steel. The results indicate that the dis

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47

Burnham, N. A., S. P. Baker, and H. M. Pollock. "Model for mechanical properties nanoprobes." Journal of Materials Research 15, no. 9 (2000): 2006–14. http://dx.doi.org/10.1557/jmr.2000.0288.

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Researchers may use several different instruments to determine chemical and mechanical properties of materials with nanometer-scale vertical, and occasionally, lateral, resolution. Three such instruments are the depth-sensing indenter, the atomic force microscope, and the surface forces apparatus. Until now, these methods were individually modeled, and an analysis of their mechanical response was never done in a general way. In this article, we show that these instruments can be treated as a class—a class that we call mechanical properties nanoprobes (MPNs)—that can be described by a single un

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48

Jung, Chan Hoi, Soon Kook Kim, Chang Woo Jang, et al. "The Heat Treatment Characteristics of Hydroxyapatite Thin Films Deposited by RF Sputtering." Solid State Phenomena 124-126 (June 2007): 1433–36. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.1433.

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RF sputtering process was applied to produce thin hydroxyapatite(HAp, Ca10(PO4)6(OH)2) films on Ti-6Al-4V alloy substrates. The effects of different heat treatment conditions on the bonding strength between HAp thin films and Ti-6Al-4V alloy substrates were studied. Before deposition, the Ti-6Al-4V alloy substrates were heat treated for 1hr at 850°C under 3.0×10-3torr, and after deposition, the HAp thin films were heat treated for 1hr at 400°C, 600°C and 800°C under the atmosphere, and analyzed optical microscope, FESEM, FTIR, XRD, nano-indentor, micro-vickers hardness, respectively. Experimen

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49

Hościło, Bogusław, and Krzysztof L. Molski. "Application of Instrumented Indentation Procedure in Assessing the Low-Cycle Fatigue Properties of Selected Heat-Treated Steels." Materials 17, no. 10 (2024): 2375. http://dx.doi.org/10.3390/ma17102375.

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The paper presents an analysis of the low-cycle fatigue (LCF) properties of C45, X20Cr13, and 34CrNiMo6 steels subjected to various heat treatment processes. Strain-controlled LCF tests were carried out with a total cyclic strain amplitude equal to 0.5, 1 and 1.5%. Fatigue life, cyclic stress-strain behavior and hardness were analyzed. Qualitative and quantitative relationships between material LCF properties resulting from the heat treatment processes, were related to the indentation force P*, which was derived experimentally by applying an instrumented indentation procedure with the use of t

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50

Sokolan, Iu, O. Romanishina, K. Sokolan, P. Maidan, and V. Karazey. "Features of Increasing the Wear Resistance of Machine Parts by Treatment with a Concentrated Heat Flow." Problems of Tribology 28, no. 2/108 (2023): 37–43. http://dx.doi.org/10.31891/2079-1372-2023-108-2-37-43.

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The article discusses the possibility of using surface treatment of parts with a concentrated heat flow to increase the wear resistance of parts. This method provides conditions for the rapid crystallization of the metal structure after zonal surface melting of the sample surface with electric arc plasma. It has been found that the wear resistance of steel increases significantly with increasing scanning speed and decreasing current strength. The near-surface layers on the cross-sectional grinds of the melting areas were studied in comparison with the initial (without melting) state on the bas

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