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Journal articles on the topic 'Grindstone'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Butenko, Victor, Valery Lebedev, Irina Davydova, and Georgy Serga. "Abrasive tool for processing components made from chrome-nickel steels and alloys." E3S Web of Conferences 110 (2019): 01040. http://dx.doi.org/10.1051/e3sconf/201911001040.

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The technology of obtaining an abrasive tool on a ceramic bond for surfacing components made of chrome-nickel steels and alloys including the composition of the abrasive mass with wood flour, and the process of tool impregnation with an aqueous solution of chrome diiodide are considered. The comparison results on the efficiency of grindstones made according to the developed technology with their redress life between two consecutive shapings, and the performance quality indices of the processed component surfaces are presented. An empirical dependence of the efficient grindstone life between tw

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2

Ramakrishnan, R., J. A. Donovan, and A. I. Medalia. "The Effect of Abrading Surfaces on the Wear of Rubber Tread Compounds." Rubber Chemistry and Technology 68, no. 4 (1995): 609–22. http://dx.doi.org/10.5254/1.3538762.

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Abstract The wear rate, produced by a modified Lambourn abrader, of rubber tread compounds, depends on the normal load, frictional force, the grit size and the number of grits per unit area of the grindstone. A preliminary model for the wear rate incorporating the grindstone characteristics, the normal and frictional force, and the fatigue exponent of the compound has been developed. The model needs further refinement but predicted the wear rate of SBR and EXXPRO™ rubber compounds well enough to be developed further. The current major limitation is accurate characterization of the grindstone.

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3

Naqvi, Arshi, Mohd Shahnawaaz, Arikatla V. Rao, Daya S. Seth, and Nawal K. Sharma. "Synthesis of Schiff Bases via Environmentally Benign and Energy-Efficient Greener Methodologies." E-Journal of Chemistry 6, s1 (2009): S75—S78. http://dx.doi.org/10.1155/2009/589430.

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Non classical methods (water based reaction, microwave and grindstone chemistry) were used for the preparation of Schiff bases from 3-chloro-4-fluoro aniline and several benzaldehydes. The key raw materials were allowed to react in water, under microwave irradiation and grindstone. These methodologies constitute an energy-efficient and environmentally benign greener chemistry version of the classical condensation reactions for Schiff bases formation.

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Bitay, Enikő, László Márton, and János Talpas. "The Story of a Re-Operating Windmill." Műszaki Tudományos Közlemények 14, no. 1 (2021): 10–17. http://dx.doi.org/10.33894/mtk-2021.14.02.

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Abstract Research on the history of the development of grain milling structures is a priority topic of the Department of Technical Sciences of the Transylvanian Museum Association. Quite a few publications and study volumes contain the results of the research. The present dissertation presents another grinding structure, the windmill, its reconstruction, creating a connection between the theoretical foundations and the practical implementation. Although it was built as a museum and tourist object, it is also a significant work from the point of view of technical history. The Felsőszentiván win

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5

Qi, Liangtao, Lei Qiu, and Xiao Zhou. "Fault diagnosis method of mechanical power system based on image processing technology." International Journal of Advanced Robotic Systems 17, no. 2 (2020): 172988142091409. http://dx.doi.org/10.1177/1729881420914093.

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Fault detection and diagnosis become one of today’s hot spots, which describes that image information is an important form of fault information, it can quickly through the image processing technique, and can accurately extract the characteristic signal. This article selects the color of the particle image, the integrated use of digital image processing, pattern recognition theory, the characteristic parameters of tribology knowledge, as well as the extraction, optimization, and digital; verifies the feasibility of iron spectrum of abrasive fault recognition, and provides a new efficient ferrog

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6

Ramakrishnan, R., J. Kliman, and J. A. Donovan. "Temperature of the Rubber Wheel during Wear Testing on a Lambourn Abrader." Rubber Chemistry and Technology 69, no. 1 (1996): 62–72. http://dx.doi.org/10.5254/1.3538358.

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Abstract Contact of a slipping rubber wheel with the grinding wheel during wear testing on a Lambourn abrader cools the rubber wheel in the contact zone because: (a) the relatively high thermal conductivity of the grindstone conducts the heat into the grindstone; and (b) there is little or no sliding, and therefore no heat generated by sliding. The temperature increase, measured on the rubber wheel outside the contact zone, results from compression and adhesional or tangential deformation hysteresis, and is not from sliding friction. Therefore, the temperature in the wear zone is only 5–10°C a

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7

MELEY, M., A. CZORNY, M. VIRTE, J. F. CHASSAGNE, and M. STRICKER. "Craniofacial Lesions by Grindstone Wheels." Journal of Trauma: Injury, Infection, and Critical Care 25, no. 6 (1985): 557–59. http://dx.doi.org/10.1097/00005373-198506000-00017.

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8

Ikechukwu, I. F., O. S. Onwuka, and M. C. Nwogu. "Production of Periwinkle Shell Reinforced Grindstone." Journal of Applied Sciences and Environmental Management 26, no. 6 (2022): 1157–62. http://dx.doi.org/10.4314/jasem.v26i6.24.

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The study involves the use of periwinkle shell particles as reinforcement in the production of grindstone to meliorate its physical and mechanical properties. The assessment of the properties of the periwinkle shell reinforced concrete grindstone showed that reinforcement yielded several promising results. The compressive strength was higher for samples with lower water/cement ratio (7%) than those with higher water/cement ratio (10%). The introduction of concrete that contains periwinkle shells as fine aggregates resulted in the loss of smooth like appearance and reduction in weight. The loss

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9

Kawasaki, Kazumasa, and Isamu Tsuji. "Polishing of Large-Sized Spiral Bevel Gears Using Radial Bristle Brush." Applied Mechanics and Materials 873 (November 2017): 48–53. http://dx.doi.org/10.4028/www.scientific.net/amm.873.48.

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A machining method of large-sized spiral bevel gears in cyclo-palloid system has been developed using a computer numerical control (CNC) machining center. As a result of trial machining, the tooth surfaces were rough and leprous tool mark occurred. Therefore, the tooth surfaces were polished using a poly-vinyl alcohol (PVA) elastic grindstone after machining in order to improve the surface roughness and the occurrence of leprous tool mark. However, the wear and clogging of the elastic grindstone occurred after polishing. In this paper, the tooth surfaces of the large-sized spiral bevel gears a

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10

Nic Eoin, Luíseach. "The gatherer and the grindstone: towards a methodological toolkit for grindstone analysis in southern Africa." Azania: Archaeological Research in Africa 51, no. 2 (2015): 291–92. http://dx.doi.org/10.1080/0067270x.2015.1093745.

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11

Safari, Javad, and Soheila Gandomi-Ravandi. "Fe3O4–CNTs nanocomposites: a novel and excellent catalyst in the synthesis of diarylpyrimidinones using grindstone chemistry." RSC Adv. 4, no. 22 (2014): 11486–92. http://dx.doi.org/10.1039/c3ra47827k.

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12

Gusev, Vladimir. "Comparison study of rotary grindstone mechanical strength." Science intensive technologies in mechanical engineering, no. 3 (March 12, 2022): 18–26. http://dx.doi.org/10.30987/2223-4608-2022-3-18-26.

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The problem of high-strength grinding tool creation is decribed. The possibility of intensifying grinding modes by using prefabricated textured wheels is shown. It is found that high-strength abrasive segments with edge and axial projections should be used, respectively, for narrow and wide prefabricated textured wheels.

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13

Motiur Rahman, A. F. M., and Adnan A. Kadi. "Solvent free Cannizzaro reaction applying grindstone technique." Arabian Journal of Chemistry 9 (November 2016): S1373—S1377. http://dx.doi.org/10.1016/j.arabjc.2012.02.010.

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14

dos Santos Filho, José Maurício, and Savio Moita Pinheiro. "Stereoselective, solvent free, highly efficient synthesis of aldo- and keto-N-acylhydrazones applying grindstone chemistry." Green Chemistry 19, no. 9 (2017): 2212–24. http://dx.doi.org/10.1039/c7gc00730b.

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An efficient and stereoselective methodology for the synthesis of N-acylhydrazones is disclosed, based on grindstone chemistry. The method tolerates a broad variety of substrates, as demonstrated by the 51 examples, 21 of them unpublished.

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15

Deb, Barnali, Sudhan Debnath, Ankita Chakraborty, and Swapan Majumdar. "Bis-indolylation of aldehydes and ketones using silica-supported FeCl3: molecular docking studies of bisindoles by targeting SARS-CoV-2 main protease binding sites." RSC Advances 11, no. 49 (2021): 30827–39. http://dx.doi.org/10.1039/d1ra05679d.

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Silica supported FeCl3 catalyzed simple protocol for the synthesis of bis-indolylmethanes was explored via grindstone chemistry. Synthesized compounds were screened virtually as inhibitor by targeting the binding site of SARS-CoV-2 main protease enzyme.

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16

Koshimizu, Shigeomi, and Shigeru Aoki. "Micro-Grooving of Glass Using Small-Diameter Diamond Grindstone with Ultrasonic Vibration." Advanced Materials Research 797 (September 2013): 368–73. http://dx.doi.org/10.4028/www.scientific.net/amr.797.368.

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The purpose of this study was to achieve grooving on glass substrates with high levels of efficiency and precision with the use of a diamond grindstone with a small diameter in the range of 1.0-1.8 mm. Mechanical material removal by grinding has high efficiency and enables process control for creating complicated forms, but has a drawback of generating chippings on the processed surface of the brittle glass material. The study gave ultrasonic vibration of 10 μm at 20 kHz in the thrust direction to the rotating small-diameter diamond grindstone in the grinding process, in order to attain high l

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17

Gandhi, Divyani, and Shikha Agarwal. "Urea nitrate catalyzed synthesis of 2-arylbenzothiazoles using the grindstone technique." Heterocyclic Communications 24, no. 6 (2018): 307–10. http://dx.doi.org/10.1515/hc-2018-0133.

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Abstract An efficient, green and environmentally friendly grindstone method for the synthesis of 2-arylbenzothiazole derivatives in the presence of urea nitrate as the catalyst under solvent-free conditions was developed. All products were characterized by elemental analysis and spectral methods.

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18

Yuan, L., V.-M. Jårvenpåå, E. Keskinen, and M. Cotsaftis. "Response and analysis of multi-degree-of-freedom cylindrical roll grinding system." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 216, no. 4 (2002): 315–25. http://dx.doi.org/10.1243/146441902320992400.

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The dynamic response of a roll grinding system with non-constant delay is investigated on the basis of a non-linear multidegree-of-freedom (MDOF) model. A delay effect originates from shape error regeneration on the surface of the roll, and the delay varies with the rotational speed of the roll. A five-degree-of-freedom (5DOF) system is considered. Two equations describe the vibration response of the roll in rotating coordinates, and the other three express the rotational rigid-body vibration system of the roll, the grindstone and its motor. Rotational speed controllers of drives are introduce

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19

Thirupathi, G., M. Venkatanarayana, P. K. Dubey, and Y. Bharathi Kumari. "L-Tyrosine as an Eco-Friendly and Efficient Catalyst for Knoevenagel Condensation of Arylaldehydes with Meldrum’s Acid in Solvent-Free Condition under Grindstone Method." Organic Chemistry International 2012 (November 13, 2012): 1–4. http://dx.doi.org/10.1155/2012/191584.

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We investigate L-Tyrosine as an efficient catalyst for the Knoevenagel condensation of arylaldehydes with meldrum’s acid containing cyclic active methylene group in solvent-free condition under grindstone method at room temperature to produce substituted-5-benzylidene-2,2-dimethyl-[1,3]dioxane-4,6-diones 3(a–j).

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20

Abdel Hameed, Afaf M. "Rapid synthesis of 1,6-naphthyridines by grindstone chemistry." Environmental Chemistry Letters 13, no. 1 (2015): 125–29. http://dx.doi.org/10.1007/s10311-015-0494-6.

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21

Hanger, R. A., R. D. Hoare, and E. E. Strong. "Permian Polyplacophora, Rostroconchia, and Problematica from Oregon." Journal of Paleontology 74, no. 2 (2000): 192–98. http://dx.doi.org/10.1017/s0022336000031425.

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A silicified fauna from the early Permian Coyote Butte Limestone within the Grindstone terrane of central Oregon contains a diverse fauna including five polyplacophorans, one rostroconch, and one problematic taxa. New taxa includeGryphochiton planoplatanew species,Arcochiton soccusnew species,Homeochiton triangularisnew genus and species,Arceodomus sphairikosnew species, andDiadeloplax apiculatusnew species.

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22

Sonawane, Ratnamala P. "Comparative Study of Chemical Synthesis of Pyrimidine Derivatives by Using Grindstone Chemistry Technique and Conventional Method." International Letters of Chemistry, Physics and Astronomy 33 (May 2014): 22–27. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.33.22.

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The majority of the drugs on the market today are entirely chemically synthesized in the laboratory. Several scientists had synthesized dihydropyrimidine (DHPMs) derivatives showing a wide spectrum of biological actions as antibacterials, antivirals as well as antitumor agents. This activity is principally due to presence of steriogenic carbon C4 in their structure. The current investigation is comparative study of chemically synthesis of two DHPMs derivatives by Biginelli Reaction using conventional method and grindstone chemistry technique. The synthesis of DHPMs derivative involves a multic

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23

Sonawane, Ratnamala P. "Comparative Study of Chemical Synthesis of Pyrimidine Derivatives by Using Grindstone Chemistry Technique and Conventional Method." International Letters of Chemistry, Physics and Astronomy 33 (May 11, 2014): 22–27. http://dx.doi.org/10.56431/p-4d2o25.

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The majority of the drugs on the market today are entirely chemically synthesized in the laboratory. Several scientists had synthesized dihydropyrimidine (DHPMs) derivatives showing a wide spectrum of biological actions as antibacterials, antivirals as well as antitumor agents. This activity is principally due to presence of steriogenic carbon C4 in their structure. The current investigation is comparative study of chemically synthesis of two DHPMs derivatives by Biginelli Reaction using conventional method and grindstone chemistry technique. The synthesis of DHPMs derivative involves a multic

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24

Paraskevas, Kosmas I., Frank J. Veith, and Jean-Baptiste Ricco. "Asymptomatic carotid stenosis revisited with nose to the grindstone." Journal of Vascular Surgery 72, no. 1 (2020): 383–84. http://dx.doi.org/10.1016/j.jvs.2020.01.080.

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25

Findlay, Merrill. "Romancing the grindstone on Gunningbland Creek: a reflective essay." Futures 37, no. 8 (2005): 893–903. http://dx.doi.org/10.1016/j.futures.2005.01.015.

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26

Niemeyer, James E. "Super-sniffer mice put their noses to the grindstone." Lab Animal 45, no. 9 (2016): 319. http://dx.doi.org/10.1038/laban.1099.

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27

Mabee, William R., Brandy S. Bergthold, Carl K. Wakefield, and Matthew D. Combes. "New State Records and Habitat Characteristics for Kloosia Kruseman (Diptera: Chironomidae) from Wadeable Streams in Missouri." Transactions of the Missouri Academy of Science 48, no. 2020 (2020): 1–3. http://dx.doi.org/10.30956/mas-23r1.

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Abstract First records of occurrence of the midge genus Kloosia Kruseman in Missouri are reported based upon aquatic macroinvertebrate community samples collected during April 2012 and October 2015 from reaches of Grindstone Creek in Dekalb County and South Blackbird Creek in Schuyler County in the Central Dissected Till Plains. Select physical and water quality characteristics from the reaches are also provided.

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28

LÖNNBERG, BRUNO. "DEVELOPMENT OF WOOD GRINDING 2. EFFECTS OF WOOD MOISTURE ON FIBRE PROPERTIES." Cellulose Chemistry and Technology 55, no. 1-2 (2021): 113–16. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.11.

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"The wood grinding model recently published was based on an energy balance of the active grinding zone, i.e. the limited volumes of wood and grindstone that were heated by the grindstone generated compression and tension strains in the wood surface. Generally speaking, the data obtained in well controlled laboratory grindings complied with the derived model meaning that compression–tension power ratios presented as a function of the specific pulp production resulted in linears. However, the wood moisture contents varying from water-saturated to air-dried wood needed further elaboration for bet

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29

Singh, Gurupreet, and Khan Chand. "Development and performance evaluation of pedal operated dehuller for black soybean." INTERNATIONAL JOURNAL OF AGRICULTURAL ENGINEERING 13, no. 2 (2020): 245–51. http://dx.doi.org/10.15740/has/ijae/13.2/245-251.

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Black soybean is a food source which contains high quality protein and does not contain cholesterol and saturated fatty acids. It is rich in vitamin and minerals and has significant medicinal effect. In India, traditional method of dehusking the black soybean is hand operated grindstone (Chakki). In grindstone, main disadvantage is the incomplete dehulling of the beans. This method of dehusking is also tedious and time consuming process. Therefore post harvest management and processing of black soybean are very important and hence an effort has been made to develop a pedal operated dehuller fo

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30

Huai, Wenbo, and Xiaojun Lin. "An optimization study of polishing efficiency of blisk and its technological parameters." Science Progress 103, no. 3 (2020): 003685042095785. http://dx.doi.org/10.1177/0036850420957850.

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When applied to blisk blade profile polishing of aero-engines, “five-axis NC + flexible grinding head + elastic grindstone” polishing technological equipment has advantages of high precision, minor interference, favorable adaptivity, etc. In order to improve the polishing quality and polishing efficiency, a mathematical calculation formula of polishing efficiency was established according to the polishing principles of elastic grindstone (sanding wheel). The optimized combination of technological parameters ( ω = 6000 r/min, ap = 0.9 mm, vf = 320 mm/min) was obtained through the range method o

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31

El-Hashash, Maher Abd El-Aziz, Sobhi Mohamed Gomha, and Elham Ezz El-Arab. "Utility of Pyrazolylchalcone Synthon to Synthesize Azolopyrimidines under Grindstone Technology." Chemical and Pharmaceutical Bulletin 65, no. 1 (2017): 90–96. http://dx.doi.org/10.1248/cpb.c16-00759.

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32

Kalla, Reddi Mohan Naidu, Jaehwa Lim, Jaeyeong Bae, and Il Kim. "Sulfated choline ionic liquid-catalyzed acetamide synthesis by grindstone method." Tetrahedron Letters 58, no. 16 (2017): 1595–99. http://dx.doi.org/10.1016/j.tetlet.2017.03.023.

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33

Aranguren, Biancamaria, Roberto Becattini, Marta Mariotti Lippi, and Anna Revedin. "Grinding flour in Upper Palaeolithic Europe (25000 years bp)." Antiquity 81, no. 314 (2007): 845–55. http://dx.doi.org/10.1017/s0003598x00095946.

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The authors have identified starch grains belonging to wild plants on the surface of a stone from the Gravettian hunter-gatherer campsite of Bilancino (Florence, Italy), dated to around 25000bp. The stone can be seen as a grindstone and the starch has been extracted from locally growing edible plants. This evidence can be claimed as implying the making of flour – and presumably some kind of bread – some 15 millennia before the local ‘agricultural revolution’.

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34

Yang, Qian, Wangwang Hao, Yangqing He, Qian Zhang, Xiaojiao Yu, and Yaobing Hua. "A Green Synthesis and Antibacterial Activity of N-Arylsulfonylhydrazone Compounds." Heterocyclic Communications 25, no. 1 (2019): 152–56. http://dx.doi.org/10.1515/hc-2019-0023.

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AbstractA green method has been developed for the synthesis of N-arylsulfonylhydrazones via a simple grindstone procedure. By grinding mixtures of benzensulfonyl hydrazides and a series of aryl aldehydes or ketones in the mortar using L-tyrosine as catalyst, 24 N-arylsulfonylhydrazones were synthesized in a few minutes with high yield. All compounds were screened for their antibacterial activities. Most of them exhibit some antibacterial activities especially for 3d, 3l and 3v showing high activity against Staphylococcus aureus and Escherichia coli.

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35

Satasia, Shailesh P., Piyush N. Kalaria, and Dipak K. Raval. "Heteropolyanion-based sulfated ionic liquid catalyzed formamides synthesis by grindstone chemistry." Journal of Molecular Catalysis A: Chemical 391 (September 2014): 41–47. http://dx.doi.org/10.1016/j.molcata.2014.04.005.

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36

Florsch, N., F. Téreygeol, and P. J. Cruz. "The Ore-Dressing Grindstone Called a ‘Quimbalete’: a Mechanics-Based Approach." Archaeometry 58, no. 6 (2015): 881–98. http://dx.doi.org/10.1111/arcm.12203.

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37

Shafiq, Nusrat, Azhar Rasul, Sonia Ashraf, et al. "A Synthesis and Pharmaceutical Evaluation of Pyrimidine Derivatives and Their Docking Studies." FRONTIERS IN CHEMICAL SCIENCES 1, no. 2 (2020): 19–28. http://dx.doi.org/10.52700/fcs.v1i2.9.

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A series of halogenated pyrimidine derivatives tetrahydropyrimidine; Ethyl-6-methyl2-oxo-4-phenyl-1,3,4-tetrahydropyrimidine-5-carboxylate (10a), Ethyl-4-(3-Chlorophenyl)-6-methyl-2-oxo-1,3,4-tetrahydropyrimidine-5- carboxylate (10b) andEthyl-4-(4-Chlorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (10c) were synthesized by using new strategy in “Grindstone protocol “toget high yield in short time. The synthesized compounds werecharacterized by 1HNMR, 13C-NMR and Mass spectral data and evaluated for their anticanceractivityagainsthuman HepG2 Liver cell lines, for antifungal

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38

Banerjee, Mainak, Padmini C. Panjikar, Dharmendra Das, Shruti Iyer, Akhil A. Bhosle, and Amrita Chatterjee. "Grindstone chemistry: A “green” approach for the synthesis and derivatization of heterocycles." Tetrahedron 112 (April 2022): 132753. http://dx.doi.org/10.1016/j.tet.2022.132753.

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39

LIN, Weimin. "Study on the influence of surface conditions of grindstone on tribological characteristics." Proceedings of Mechanical Engineering Congress, Japan 2016 (2016): S1310202. http://dx.doi.org/10.1299/jsmemecj.2016.s1310202.

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40

Luk, Edwin. "Nose to the grindstone: The hidden dangers of long-term oxygen therapy." International Journal of Therapy and Rehabilitation 22, no. 11 (2015): 544–45. http://dx.doi.org/10.12968/ijtr.2015.22.11.544.

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41

CHEN, JENNY, JING REN, and NIDA QADIR. "BACK TO THE GRINDSTONE: A CASE OF DELAYED DIAGNOSIS OF ACCELERATED SILICOSIS." CHEST 166, no. 4 (2024): A5019—A5020. http://dx.doi.org/10.1016/j.chest.2024.06.2979.

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42

Blome, Charles D., and K. M. Reed. "Permian and Early(?) Triassic radiolarian faunas from the Grindstone terrane, central Oregon." Journal of Paleontology 66, no. 3 (1992): 351–83. http://dx.doi.org/10.1017/s0022336000033941.

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Moderately well preserved Permian (late Wolfcampian, Leonardian, Guadalupian, and Djulfian) and Early(?) Triassic radiolarian faunas from sedimentary mélange cherts of the Grindstone terrane in central Oregon are nearly identical to coeval chert faunas in Japan. These Permian faunas are similar to those used in constructing the radiolarian zonations for Japan and the Tethyan regions. Although several Oregon taxa have been reported from limestone sequences in the central United States, most of the Oregon forms have only been found in cherty rocks and nearly half have not previously been reporte

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43

Bose, Ajay K., Suhas Pednekar, Subhendu N. Ganguly, Goutam Chakraborty, and Maghar S. Manhas. "A simplified green chemistry approach to the Biginelli reaction using ‘Grindstone Chemistry’." Tetrahedron Letters 45, no. 45 (2004): 8351–53. http://dx.doi.org/10.1016/j.tetlet.2004.09.064.

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44

BLOME, CHARLES D., and MERLYND K. NESTELL. "Evolution of a Permo-Triassic sedimentary mélange, Grindstone terrane, east-central Oregon." Geological Society of America Bulletin 103, no. 10 (1991): 1280–96. http://dx.doi.org/10.1130/0016-7606(1991)103<1280:eoapts>2.3.co;2.

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45

Kettering, Alison M. "Men at Work in Dutch Art, or Keeping One's Nose to the Grindstone." Art Bulletin 89, no. 4 (2007): 694–714. http://dx.doi.org/10.1080/00043079.2007.10786370.

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46

Godugu, Kumar, and Chinna Gangi Reddy Nallagondu. "Solvent and catalyst‐free synthesis of imidazo[1,2‐a]pyridines by grindstone chemistry." Journal of Heterocyclic Chemistry 58, no. 1 (2020): 250–59. http://dx.doi.org/10.1002/jhet.4164.

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47

Bralower, T. J., K. R. Ludwig, and J. D. Obradovich. "Berriasian (Early Cretaceous) radiometric ages from the Grindstone Creek Section, Sacramento Valley, California." Earth and Planetary Science Letters 98, no. 1 (1990): 62–73. http://dx.doi.org/10.1016/0012-821x(90)90088-f.

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48

SUH, CHANG-MIN, and SANG-CHUN KIM. "AN EVALUATION OF OPTIMAL GRINDING CONDITIONS OF ZrO2 FERRULE BY VIBRATION ANALYSIS OF THE WHEEL SHAFT." International Journal of Modern Physics B 20, no. 25n27 (2006): 4523–28. http://dx.doi.org/10.1142/s0217979206041628.

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Ceramic ferrule, which is a major part of fiber optic connectors, requires a high level of precision in the grinding process. Recently, the requirements for high precision and efficiency have gradually increased to match the international competitiveness within the industrial fields of grinding machine. This trend has had a significant effect on industrial fields. In this study, the effects of the grinding conditions regarding the roundness of ZrO 2 ferrule, that apply to the optical fiber connector, were analyzed and measured using the effects of a run-out for the rotation speed of a spindle,

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LÖNNBERG, BRUNO. "DEVELOPMENT OF WOOD GRINDING 1. GRINDING MODEL." Cellulose Chemistry and Technology 54, no. 9-10 (2020): 939–41. http://dx.doi.org/10.35812/cellulosechemtechnol.2020.54.90.

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The aim of this study was to develop and test a model expected to be useful in interpretation of stone grinding of wood. Since stone grinding has been in use for about two centuries, it is surprising that some grinding mechanisms still remain undiscovered. The application of an energy balance set-up for the wood and grindstone surfaces, valid for wood grinding under conditions presenting continuity, resulted in a useful model. The theoretical model developed suggests that the ratio of the compression and tension powers, called the power ratio, depends linearly on the specific production. The e

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Arshad, Uzma, Sibtain Ahmed, Nusrat Shafiq, et al. "Structure-Based Designing, Solvent Less Synthesis of 1,2,3,4-Tetrahydropyrimidine-5-carboxylate Derivatives: A Combined In Vitro and In Silico Screening Approach." Molecules 26, no. 15 (2021): 4424. http://dx.doi.org/10.3390/molecules26154424.

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Objective: In this study, small molecules possessing tetrahydropyrimidine derivatives have been synthesized having halogenated benzyl derivatives and carboxylate linkage. As previously reported, FDA approved halogenated pyrimidine derivatives prompted us to synthesize novel compounds in order to evaluate their biological potential. Methodology: Eight pyrimidine derivatives have been synthesized from ethyl acetoacetate, secondary amine, aromatic benzaldehyde by adding catalytic amount of CuCl2·2H2O via solvent less Grindstone multicomponent reagent method. Molecular structure reactivity and vir

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