Log in

Relevant bibliographies by topics / Sand cord / Journal articles

To see the other types of publications on this topic, follow the link: Sand cord.

Journal articles on the topic 'Sand cord'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Sand cord.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bede, Peter, Ronan Walsh, Andrew J. Fagan, and Orla Hardiman. "“Sand-watch” spinal cord: a case of inferior cervical spinal cord atrophy." Journal of Neurology 261, no. 1 (2013): 235–37. http://dx.doi.org/10.1007/s00415-013-7193-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

TATE, Takayuki, and Hideyuki TSUKAGOSHI. "Fluid Powered Soft Cord Robot aiming to move in the sand." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2016 (2016): 2A1–04b2. http://dx.doi.org/10.1299/jsmermd.2016.2a1-04b2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kucera, Martin. "Komplementärberatung: Den Faktor Mensch professionell einbinden." kma - Klinik Management aktuell 24, S 01 (2019): S10—S11. http://dx.doi.org/10.1055/s-0036-1595733.

Full text

Abstract:

Sind Mitarbeiter in Veränderungsprozesse nicht eingebunden, verlaufen gute Beratungsansätze oft im Sand. Um das zu verhindern, bietet das Beratungsunternehmen CoSolvia seit neuestem die Komplementärberatung an. Sie führt die Ansätze von Fach- und Prozessberatung zusammen. Im Gespräch mit kma erklärt Geschäftsführer Cord Brüning, wie das funktioniert.

APA, Harvard, Vancouver, ISO, and other styles

4

Levin, Martin A., Lisa L. Cale, and Valerie Lynch-Holm. "The ultrastructure of the abdominal musculature of an orchestid amphipod." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 3 (1990): 464–65. http://dx.doi.org/10.1017/s0424820100159862.

Full text

Abstract:

Orchestia is a genus of amphipod in the crustacean class Malacostraca. The order Amphipoda contains over 6000 species commonly called side swimmers, scuds and beach fleas(1). Most are marine bottom-dwellers utilizing their thoracic legs and posterior abdominal uropods for walking, crawling and swimming. However, some, like those in the genera Orchestia and Hyale are semiterrestrial. These amphipods, commonly referred to as “beach fleas,' “beach hoppers” or “sand fleas” can hop vigorously for great distances (up to 50 times their length) by extending their abdomens and telsons against the sand(

APA, Harvard, Vancouver, ISO, and other styles

5

A.G., Narayanaswamy, Meenakshi K., Porchelvan S., Vinoth Kumar J., Bavya S., and SharanyaShre E. S. "Umbilical cord serum lipid profile of healthy neonates- A single center study from rural Tamil Nadu, India." Biomedicine 42, no. 2 (2022): 268–73. http://dx.doi.org/10.51248/.v42i2.1253.

Full text

Abstract:

Introduction and Aim: Umbilical cord lipid profile of neonates might help facilitate the assessment of risk of developing atherosclerotic disorders later in life. This study prospectively measures the cord blood lipid profile of healthy newborn at birth in medical college hospital in rural Tamil Nadu. Material sand Methods: Consecutive full-term newborns (n=105) were enrolled for this study. Umbilical cord blood sample was collected from placental end of the cord immediately after delivery of placenta of each baby and sent to the lab for lipid profile estimation. Results: In the newborns born

APA, Harvard, Vancouver, ISO, and other styles

6

Selin, Dmitry, Alexander Lebedintsev, Pavel Grebenyuk, and Alexander Fedorchenko. "Ceramics of the Old Bering Sea Culture from the Kozhevnikov Cliff Site (Cape Schmidt): Features of Pottery Technology." Nizhnevolzhskiy Arheologicheskiy Vestnik, no. 2 (June 2024): 161–72. http://dx.doi.org/10.15688/nav.jvolsu.2024.2.8.

Full text

Abstract:

During the excavations of a dugout at the Kozhevnikov Cliff site (Cape Schmidt), N.N. Dikov obtained a collection of pottery vessels of the Old Bering Sea culture (fourteen specimens). The technology of ceramic production was analyzed using the methodology developed by A.A. Bobrinsky. It was determined that potters selected iron-rich clays of two subtypes, differing in the amount of natural sand content, for pottery production. Five recipes for the molding clay were identified, including three unmixed: 1) clay + sand (7 specimens); 2) clay + wool (3 specimens); 3) clay + organic solution (2 sp

APA, Harvard, Vancouver, ISO, and other styles

7

Bio, Djara Moussa, Laïbi Raoul A., and Christophe Kaki. "Influence of Amenities in the Functioning of a Coastal Sediment Cell with a Moving Barrier: Case of Benin Coastal Segment between Hillacondji and Djondji in the Township of Grand Popo." Journal of Geography, Environment and Earth Science International 10, no. 4 (2017): 1–13. https://doi.org/10.9734/JGEESI/2017/33402.

Full text

Abstract:

The coast of Benin, 125 km long, is part of the overall west African coast, characterized by a narrow strip of coarse and medium sand and by an important coastal transit, which makes it an essentially fragile coastline. This coast also suffers from a strong anthropic pressure marked by the presence of port and hotel infrastructures as well as the administrative and private buildings wich disturb sedimentary dynamics of the coastline. The coastal sector between Hillacondji and Grand-Popo, which for a while, is confronted to erosional phenomena of sandy band, which was the subject of the present

APA, Harvard, Vancouver, ISO, and other styles

8

LOWRY, J. K. "Talitrid amphipods from ocean beaches along the New South Wales coast of Australia (Amphipoda, Talitridae)." Zootaxa 3575, no. 1 (2012): 1. http://dx.doi.org/10.11646/zootaxa.3575.1.1.

Full text

Abstract:

The sand-hopper Bellorchestia mariae sp. nov. is described from Honeymoon Bay on the north coast of Jervis Bay, NewSouth Wales, Australia. It is the sister species of B. richardsoni Serejo & Lowry, 2008 and appears to have a limited dis-tribution from about Narrawallee in the south to northern Jervis Bay. The distribution of B. richardsoni Serejo & Lowry,2008 is extended from Point Ricardo, Victoria, northwards to Ulladulla on the New South Wales coast. A new synonymyis proposed for the sand-hopper Notorchestia quadrimana (Dana, 1852) which includes N. novaehollandiae (1899) andN. loba

APA, Harvard, Vancouver, ISO, and other styles

9

Hountondji, Babilas, Lambert K. Ayitchéhou, François De Paule Codo, and Martin P. Aina. "Innovative Method of Carrying Out Coastal Protection Works: Monitoring Coastal Risks and Soft Solutions in Benin." European Journal of Applied Sciences 13, no. 02 (2025): 176–83. https://doi.org/10.14738/aivp.1302.18325.

Full text

Abstract:

Coastal erosion is a phenomenon of natural or anthropogenic origin that affects many coastal regions around the world. In response to its worsening over time, adaptation strategies have been developed: construction of dikes, operations to re-silt beaches, rock structures, etc. Among these strategies, the establishment of sand dunes is a territorial entity which fluctuates in space and time depending on natural (tide, erosion, sedimentation, etc.) and human factors (dams, etc.). The Beninese dune cord in the sector of the mouth of the Mono River in the commune of Grand Popo is in a state of lam

APA, Harvard, Vancouver, ISO, and other styles

10

Skrzyński, M., R. Dańko, and J. Kamińska. "Reclamation of Mixtures of Spent Sands of Inorganic and Organic Type." Archives of Foundry Engineering 13, no. 4 (2013): 93–96. http://dx.doi.org/10.2478/afe-2013-0089.

Full text

Abstract:

Abstract The results of investigations of the reclamation of spent moulding and core sands, originated from one of the Polish foundry plants, are presented in the paper. Four mixtures consisting of two types of spent sands (spent moulding sand and spent core sand) were subjected to the regeneration process. Each tested mixture consisted of an inorganic type spent moulding sand and of an organic type spent core sand. Proportions of mutual fractions of spent moulding and core sands in mixtures was 70%-30% and was representative for the waste sands from the foundry, from which these sands origina

APA, Harvard, Vancouver, ISO, and other styles

11

Nishikawa, Misao, Masaki Yoshimura, Kentaro Naito, et al. "The Symptomatic Calcification and Ossification of the Ligamentum Flavum in the Spine: Our Experience and Review of the Literature." Journal of Clinical Medicine 13, no. 1 (2023): 105. http://dx.doi.org/10.3390/jcm13010105.

Full text

Abstract:

Introduction: We report our experience regarding the clinical features and pathological findings of the calcification of the ligamentum flavum (CLF) and ossification of the ligamentum flavum (OLF) in the spine. In addition, we reviewed the previous studies on CLF and OLF to enhance the understanding of these conditions. Materials and Methods: We compared the clinical, radiological, and histopathological features of CLF and OLF. Results: In CLF, a computed tomography (CT) scan showed egg-shaped or speck-like calcification in the ligamentum flavum. Magnetic resonance (MR) imaging demonstrated sp

APA, Harvard, Vancouver, ISO, and other styles

12

Sun, Qing Zhou, Li Jin, Pu Qing Zhang, Zhong Kui Zhao, Jian Wang, and Jing Guang Yan. "The Process Adaptability Study under the Conditions of Reclaimed Clay Sand Variable System." Applied Mechanics and Materials 432 (September 2013): 11–15. http://dx.doi.org/10.4028/www.scientific.net/amm.432.11.

Full text

Abstract:

This paper studies the process adaptability of reclaimed clay sand with core sand, and discovers that the reclaimed clay sand with furan resin self-setting sand can be used to mix the water-glass sand and hot core box sand; but it can not be used to mix the cold core box sand and coated sand. The reclaimed clay sand with water-glass sand can not be used to mix the hot core box sand, cold core box sand and coated sand; the reclaimed clay sand with hot core box sand can be used to mix the water-glass sand, cold core box sand and coated sand; the reclaimed clay sand with cold core box sand can be

APA, Harvard, Vancouver, ISO, and other styles

13

Liu, Jingjing, Long Yu, Xiaoyan Li, and Jing Liu. "An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String." Journal of Marine Science and Engineering 12, no. 3 (2024): 421. http://dx.doi.org/10.3390/jmse12030421.

Full text

Abstract:

Dredging hoses are flexible and are particularly suitable for slurry transportations for mud or sand in dredging projects. To achieve sufficient bending stiffness and to prevent the pipe body from collapsing, this type of hose segment is a composite structure that is embedded with several cord reinforcement layers and steel wires in its rubber layer. To quickly evaluate the nonlinear bending mechanical properties of rubber hoses, this study proposes the equivalent stiffness method of linear superposition, which is verified by test data and numerical results. The results show that the equivalen

APA, Harvard, Vancouver, ISO, and other styles

14

Collins, Patrick Michael. "Geomechanical Effects on the SAGD Process." SPE Reservoir Evaluation & Engineering 10, no. 04 (2007): 367–75. http://dx.doi.org/10.2118/97905-pa.

Full text

Abstract:

Summary Steam-assisted gravity drainage (SAGD) is a robust thermal process that has revolutionized the economic recovery of heavy oil and bitumen from the immense oil-sands deposits in western Canada, which have 1.6 to 2.5 trillion bbl of oil in place. With steam injection, reservoir pressures and temperatures are raised. These elevated pressures and temperatures alter the rock stresses sufficiently to cause shear failure within and beyond the growing steam chamber. The associated increases in porosity, permeability, and water transmissibility accelerate the process. Pressures ahead of the ste

APA, Harvard, Vancouver, ISO, and other styles

15

Herndon, Richard L. "A summary of two Late Woodland Ralls phase settlements in northeastern Missouri." North American Archaeologist 38, no. 3 (2017): 211–36. http://dx.doi.org/10.1177/0197693117696537.

Full text

Abstract:

Investigations associated with the recently completed Avenue of the Saints highway project resulted in the documentation of two Late Woodland Ralls phase (cal A.D. 700–900) bluff-base settlements located in the Mississippi floodplain of northeastern Missouri. This article summarizes the result of excavations at both sites. Pottery consisted mostly of crushed rock and sand-tempered jars with cord-roughened exterior surfaces. Decoration on the orifice of vessels was very common. Burlington/Keokuk chert was the primary raw material used in the production of flaked tools and is assumed to be from

APA, Harvard, Vancouver, ISO, and other styles

16

Kotwicki, Artur, Mirza Hassan Baig, Yngve Bolstad Johansen, et al. "Evaluating Petrophysical Properties and Volumetrics Uncertainties of Sand Injectite Reservoirs – Norwegian North Sea." Petrophysics – The SPWLA Journal of Formation Evaluation and Reservoir Description 63, no. 1 (2022): 82–103. http://dx.doi.org/10.30632/pjv63n1-2022a5.

Full text

Abstract:

Sand injectites on the Norwegian Continental Shelf have proven their commercial significance. Some are already producing, e.g., Volund, Viper, Balder, Ringhorne, and Kobra Fields, while others such as in production licenses (PL) 340 and 869 have recently been discovered and appraised. Extensive literature on the geology of sand injectites has been published (e.g., Jenssen et al., 1993; Jolly and Lonergan, 2002; Huuse et al., 2003; Hurst et al., 2005). However, few references are available on the petrophysical and geophysical aspects of sand injectite reservoirs. This paper discusses the petrop

APA, Harvard, Vancouver, ISO, and other styles

17

Dańko, R., J. Dańko, A. Burbelko, and M. Skrzyński. "Core Blowing Process - Assessment of Core Sands Properties and Preliminary Model Testing." Archives of Foundry Engineering 14, no. 1 (2014): 25–28. http://dx.doi.org/10.2478/afe-2014-0006.

Full text

Abstract:

Abstract The effects of filling the core box cavity and sand compaction in processes of core production by blowing methods (blowing, shooting) depend on several main factors. The most important are: geometrical parameters of cavity and complexity of its shape, number, distribution and shape of blowing holes feeding sands as well as the venting of a technological cavity. Values of individual parameters are selected according to various criteria, but mostly they should be adjusted to properties of the applied core sand. Various methods developed by several researchers, including the authors own

APA, Harvard, Vancouver, ISO, and other styles

18

Williams, B. P. J., E. K. Wild, and R. J. Suttill. "PARAGLACIAL AEOLIANITES: POTENTIAL NEW HYDROCARBON RESERVOIRS, GIDGEALPA GROUP, SOUTHERN COOPER BASIN." APPEA Journal 25, no. 1 (1985): 291. http://dx.doi.org/10.1071/aj84026.

Full text

Abstract:

Facies analysis of core from the Gidgealpa Group has led to the first recognition of sandstones of aeolian origin in the Cooper Basin. The aeolian suite was recognised in core from the Merrimelia Formation penetrated by wells within the Merrimelia field.The Merrimelia 5 aeolianites occur in core between 8603 and 8659 ft drill depth. These were correlated to similar facies in core from Merrimelia 1 between 9649 and 9674 ft drill depth, where other lithotypes of the suite were identified.Gamma ray-sonic log response over cored aeolianite intervals can be correlated to Merrimelia 13, where simila

APA, Harvard, Vancouver, ISO, and other styles

19

Braga, Bernardo M., and Roberto P. Tavares. "Mathematical model for prediction of hydrogen pick-up of liquid steel during filling of a continuous casting tundish." Metallurgical Research & Technology 115, no. 4 (2018): 409. http://dx.doi.org/10.1051/metal/2018009.

Full text

Abstract:

Steels for several applications, such as steel cord for tires and heavy plates, present severe hydrogen restriction in their chemical composition. However, the hydrogen content of the liquid steel usually increases during tundish filling. This phenomenon, known as hydrogen pick-up, occurs due to direct steel contact with humidity present in the lining refractory, ladle sand and atmospheric air. The present work investigated by means of an analytical mathematical model the magnitude of hydrogen pick-up promoted by steel-air interaction. The relative importance of this mechanism was evaluated co

APA, Harvard, Vancouver, ISO, and other styles

20

Zakrzewski, Mateusz, and Jacek Domski. "Analysis of Rheological Properties of Cement Composites Based on Waste Materials." Rocznik Ochrona Środowiska 25 (2023): 159–73. http://dx.doi.org/10.54740/ros.2023.016.

Full text

Abstract:

This report presents the results and analysis of long-term properties of fiber-reinforced cement composite based on waste aggregate. The long-term tests were carried out on the stand proposed by the authors for simultaneously testing three beams with dimensions of 100x200x2900 mm. A total of 8 mixtures of cement composites with aggregate from ceramic waste and waste sand were tested. Three beams were made for each mixture. One without dispersed reinforcement and two with 0.5% and 1.0% fiber reinforcement ratios. As dispersed reinforcement, steel cord and hooked steel fibers were used. The beam

APA, Harvard, Vancouver, ISO, and other styles

21

Theologou, P., and M. Whelan. "FORMATION EVALUATION AND STATIC MODELLING IN THE WHEATSTONE GAS FIELD." APPEA Journal 46, no. 1 (2006): 161. http://dx.doi.org/10.1071/aj05010.

Full text

Abstract:

The Wheatstone gas discovery is located about 110 km north-northwest of Barrow Island in the Dampier Subbasin, northwest Australia. Gas was intersected within the AA sands of the Mungaroo Formation, and within a thin overlying Tithonian sand. Core was acquired through the base of the Tithonian sand and the upper section of the Mungaroo Formation.A combination of logging while drilling, wireline logging, core acquisition and special core analysis has formed the basis of an extensive formation evaluation program for Wheatstone–1. The acquisition of this dataset, and associated interpretation, ha

APA, Harvard, Vancouver, ISO, and other styles

22

Dańko, R. "Validation of the Theoretical Model of Determining the Strength of Cores Made by the Blowing Method." Archives of Foundry Engineering 17, no. 3 (2017): 27–30. http://dx.doi.org/10.1515/afe-2017-0085.

Full text

Abstract:

AbstractCore sands for blowing processes, belong to these sands in which small amount of the applied binding material has the ability of covering the sand matrix surface in a way which - at relatively small coating thickness - allows to achieve the high strength. Although the deciding factor constitute, in this aspect, strength properties of a binder, its viscosity and ability to moisten the matrix surface, the essential meaning for the strength properties of the prepared moulding sand and the mould has the packing method of differing in sizes sand grains with the coating of the binding materi

APA, Harvard, Vancouver, ISO, and other styles

23

Sego, D. C., P. K. Robertson, S. Sasitharan, B. L. Kllpatrick, and V. S. Pillai. "Ground freezing and sampling of foundation soils at Duncan Dam." Canadian Geotechnical Journal 31, no. 6 (1994): 939–50. http://dx.doi.org/10.1139/t94-109.

Full text

Abstract:

In situ ground freezing to obtain undisturbed samples of a loose sand beneath the Duncan Dam in British Columbia is described. This was the first known use of ground freezing to assist in obtaining samples at depth greater than 10 m in Canada. Once frozen, the sand was cored and brought to the surface using a Cold Regions Research and Engineering Laboratory core barrel, which is used extensively in permafrost regions. The design, installation, and performance of the liquid nitrogen freezing systems are described in detail. The drilling, sampling, and preparation of the frozen core for transpor

APA, Harvard, Vancouver, ISO, and other styles

24

Meza-Díaz, Brigida, Ron Sawatzky, and Ergun Kuru. "Sand on Demand: A Laboratory Investigation on Improving Productivity in Horizontal Wells Under Heavy-Oil Primary Production—Part II." SPE Journal 17, no. 04 (2012): 1012–28. http://dx.doi.org/10.2118/133500-pa.

Full text

Abstract:

Summary The cold-production-recovery process, also known as cold heavy-oil production with sand (CHOPS), is a method for enhancing primary heavy-oil production by aggressively producing sand. It is successful in vertical (or slanted or deviated) wells in western Canada. In this process, large amounts of sand are produced on a continuing basis along with heavy oil. Attempts at cold production in horizontal wells have not been particularly successful. When sand production has been generated in horizontal wells, these wells have tended to become plugged with sand. This paper presents the results

APA, Harvard, Vancouver, ISO, and other styles

25

Rauba-Bukowska, Anna. "Microscopic Analysis of Pottery Fragments from the Corded Ware Culture at Sites 11, 15 and 20 in Święte, Jarosław District." Baltic-Pontic Studies 23, no. 1 (2018): 163–77. http://dx.doi.org/10.2478/bps-2018-0005.

Full text

Abstract:

Abstract For microscopic examination, 22 pottery fragments from sites 11, 15 and 20 in Święte, Jarosław District were selected. The pottery types included beakers (N=19) and amphorae (N=3). The goal of the petrographic analysis was to identify mineralogical composition of ceramic fabric, sources of raw materials, and intentional additives to the clay. The analysis yielded data that helped determine ceramic fabrics types and preparation methods, as well as pottery firing conditions and approximate firing temperature. In all samples analysed, ceramic fabrics were prepared in a similar way, using

APA, Harvard, Vancouver, ISO, and other styles

26

Zakrzewski, Mateusz, and Jacek Domski. "Cracking Behavior and Deflections in Recycled-Aggregate Beams Reinforced with Waste Fibers Subjected to Long-Term Constant Loading." Materials 16, no. 10 (2023): 3622. http://dx.doi.org/10.3390/ma16103622.

Full text

Abstract:

This report presents the results of long-term tests on concrete beams reinforced with steel cord. In this study, natural aggregate was wholly replaced with waste sand or with wastes from the production of ceramic products and ceramic hollow bricks. The amounts of individual fractions used were determined in accordance with guidelines for reference concrete. A total of eight mixtures were tested; these differed in terms of the type of waste aggregate used. Elements with various fiber-reinforcement ratios were made for each mixture. Steel fibers and waste fibers were used in amounts of 0.0%, 0.5

APA, Harvard, Vancouver, ISO, and other styles

27

Holtzer, M., S. Żymankowska-Kumon, R. Dańko, and A. Kmita. "Elution of Mixed Moulding Sands with the GEOPOL Binder and Core Sands with the Phenolic Resin." Archives of Foundry Engineering 13, no. 4 (2013): 53–56. http://dx.doi.org/10.2478/afe-2013-0081.

Full text

Abstract:

Abstract Out of moulding and core sands used in the foundry industry, sands with organic binders deserve a special attention. These binders are based on synthetic resins, which ensure obtaining the proper technological properties and sound castings, however, they negatively influence the environment. Depending on the kind of the applied resin under an influence of a temperature such compounds as for example BTEX group and polycyclic aromatic hydrocarbons (PAHs) can be formed and released. During storing or economic utilization of used sand is possibility of eluting harmful substances into the

APA, Harvard, Vancouver, ISO, and other styles

28

Dańko, J., R. Dańko, M. Skrzyński, M. Dereń, and Ł. Zygmunt. "Influence of the Reclaim from the Cordis Technology on the Core Sand Strength." Archives of Foundry Engineering 14, no. 4 (2014): 17–20. http://dx.doi.org/10.2478/afe-2014-0078.

Full text

Abstract:

Abstract The investigation results of the mechanical reclamation of spent moulding sands from the Cordis technology are presented in the paper. The quality assessment of the obtained reclaim and the influence of the reclaim fraction in a matrix on the core sand strength is given. The reclaim quality assessment was performed on the basis of the determination of losses on ignition, Na2O content on reclaim grains and pH values. The reclaim constituted 100%, 75% and 50% of the core sand matrix, for which the bending strength was determined. The matrix reclamation treatment was performed in the exp

APA, Harvard, Vancouver, ISO, and other styles

29

Holtzer, Mariusz, Rafał Dańko, Sylwester Piasny, et al. "Research on the Release of Dangerous Compounds from the BTEX and PAHs Groups in Industrial Casting Conditions." Materials 14, no. 10 (2021): 2581. http://dx.doi.org/10.3390/ma14102581.

Full text

Abstract:

The assessment of the harmfulness of moulding and core sands is mainly based on investigations of compositions of gases emitted by liquid casting alloys during the mould pouring. The results of investigations of moulding sands obtained under industrial conditions are presented in this paper. A unique research stand was designed and built for this aim. It allowed us to determine emissions of gases at individual stages of casting a mass up to 50 kg. This approach enables simulation of foundry conditions. Moulding sands bound by organic binders (phenol-formaldehyde; furan), inorganic binders and

APA, Harvard, Vancouver, ISO, and other styles

30

Irani, Mazda. "Predicting Geomechanical Dynamics of Steam-Assisted Gravity-Drainage Process. Part II: Modified Cam-Clay Model." SPE Journal 25, no. 06 (2020): 3366–85. http://dx.doi.org/10.2118/201186-pa.

Full text

Abstract:

Summary In Part I of this study (Irani 2018), the geomechanical effects in the reservoir associated with steam-assisted gravity drainage (SAGD) steam chamber growth was evaluated on the basis of two core assumptions: reservoir yield behavior follows that of the Mohr-Coulomb (MC) dilative behavior, and the reservoir stress response follows that of a drained sand. In Part I, it was shown that although the dilative model nicely described the shearing and the sheared zone thickness at the front of the SAGD steam chamber, it could not predict the displacements associated with cold dilation in SAGD

APA, Harvard, Vancouver, ISO, and other styles

31

Ha, Tae Kyu, Jong Min Kim, Jeong Il Youn, and Young Jig Kim. "The Effect of the Artificial Sand on the Gas Emission for Aluminum Casting." Key Engineering Materials 968 (December 6, 2023): 175–80. http://dx.doi.org/10.4028/p-1u4vbk.

Full text

Abstract:

The effect of artificial sand on the amount of core gas emission was examined. Mass loss by thermal decomposition of the binder was evaluated when resin-coated sand (RCS) with various amounts of artificial sand was exposed to high temperature. Compared to natural sand, the mass loss and temperature variation of artificial sand was reduced. It was confirmed that this is because the contact area between the two particles is reduced when the binder bridge is created between the foundry sands. Therefore, the surface morphology of the artificial sand has ragged surface, so that the heat conduction

APA, Harvard, Vancouver, ISO, and other styles

32

Yahodynska, M. O., V. V. Ilchyshyn, and M. P. Sokhatsky. "NEW RESEARCH ON BURIALS OF THE GLOBULAR AMPHORAE CULTURE IN TERNOPIL REGION." Archaeology and Early History of Ukraine 46, no. 1 (2023): 101–15. http://dx.doi.org/10.37445/adiu.2023.01.05.

Full text

Abstract:

The article introduces the results of archaeological research in the tombs of the Globular Amphorae culture near the Bilyi Potik and Ozeriany villages of Chortkiv district, Ternopil region (Western Podillia). The description of the archaeological material found during the excavations has been provided. Both tombs from Bilyi Potik and Ozeriany differ in number and composition of the buried individuals. All those buried in Bilyi Potik were men. There were two men, two women and a child in Ozeriany. The question of their family relations remains open before additional research. The set of a

APA, Harvard, Vancouver, ISO, and other styles

33

Sun, Qing Zhou, Rong Fu Xu, Zhong Kui Zhao, Pu Qing Zhang, and Wei Liu. "Study on the Technological Adaptability of the Reclaimed Sand Applied in the Chemical Bonded Sand." Advanced Materials Research 139-141 (October 2010): 524–27. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.524.

Full text

Abstract:

The technological adaptability of the reclaimed sand applied in the chemical bonded sand was studied in this paper. The reclaimed sand can be obtained by the process of high-temperature baking followed by mechanical reclamation and separation of micro-powder. The reclaimed green sand which containing different types of chemical bonded core sand were applied in corresponding system of chemical bonded sand process, such as the process of cold-box sand, hot-box sand, precoated sand, sodium silicate sand and self-hardening sand. Through technological experiments, it can be found that the tensile s

APA, Harvard, Vancouver, ISO, and other styles

34

Do, Thi Xuan Phuong, Thi Ngoc Ha Nguyen, Thi Hien Mai, et al. "Influence of media and cellular origin on growth factors secreted by mesenchymal stem cells." Tạp chí Sinh lý học Việt Nam 25, no. 2 (2022): 1–12. http://dx.doi.org/10.54928/vjop.v25i2.2.

Full text

Abstract:

Objective: Investigating influences of the culture media and cellular origin on the expression of several growth factors carried by exosomes secreted from umbilical cord-derived mesenchymal stem cells (UCMSC) and bone marrow-derived mesenchymal stem cells (BMMSC). Methods: 03 UCMSC samples was cultured in StemMACs and PowerStem, 03 BMMSC samples was cultured in StemMAC sand ACF Plus. At the passage 2, conditioned media were collected for exosome isolation. Exosomes were then investigated for the expression of growth factors, including: vascular endothelial growth factor A (VEGF-A), fibro

APA, Harvard, Vancouver, ISO, and other styles

35

Do, Thi Xuan Phuong, Thi Ngoc Ha Nguyen, Thi Hien Mai, et al. "Influence of media and cellular origin on growth factors secreted by mesenchymal stem cells." Tạp chí Sinh lý học Việt Nam 25, no. 2 (2021): 1–12. http://dx.doi.org/10.54928/vjp.v25i2.2.

Full text

Abstract:

Objective: Investigating influences of the culture media and cellular origin on the expression of several growth factors carried by exosomes secreted from umbilical cord-derived mesenchymal stem cells (UCMSC) and bone marrow-derived mesenchymal stem cells (BMMSC). Methods: 03 UCMSC samples was cultured in StemMACs and PowerStem, 03 BMMSC samples was cultured in StemMAC sand ACF Plus. At the passage 2, conditioned media were collected for exosome isolation. Exosomes were then investigated for the expression of growth factors, including: vascular endothelial growth factor A (VEGF-A), fibro

APA, Harvard, Vancouver, ISO, and other styles

36

Usende, I. L., O. R. Attah, F. O. Oyelowo, et al. "Morphology and Morphometry of the Brain of African side necked turtle ‎‎(Pelusios castaneus): A Preliminary Investigation‎." Sahel Journal of Veterinary Sciences 19, no. 3 (2022): 20–27. http://dx.doi.org/10.54058/saheljvs.v19i3.304.

Full text

Abstract:

The brain and spinal cord make up the central nervous system and studying its morphology and morphometry in African side necked turtle (Pelusios castaneus) enhance understanding the neurobiology of this reptile. The current study is aimed to document the normal features on gross morphology and morphometry of the brain of Pelusios castaneus, and discuss the structure-function paradigm. The study was conducted on six (6) brains of African side necked turtle without sex differences. The main morphologic features observed were: 1- a pear-shaped olfactory brain, sand-wished between the two eyes and

APA, Harvard, Vancouver, ISO, and other styles

37

Dungan, Robert S., and James B. Reeves. "Near Infrared Spectroscopic Analysis of Foundry Moulding and Core Sands." Journal of Near Infrared Spectroscopy 15, no. 3 (2007): 189–94. http://dx.doi.org/10.1255/jnirs.729.

Full text

Abstract:

Sands coated, mixed and polymerised with a wide variety of materials are used to make moulds and cores for the casting of metals. Heating results in the production of a wide variety of organic materials by pyrolysis. These resulting compounds may need to be characterised before waste sands can be beneficially used in the environment. The objective of this work was to examine the potential of near infrared (NIR) spectroscopy to qualitatively identify organic residues in waste green sands (clay-bonded moulding sand). Examination of spectra of waste green sands, burnt and unburnt cores and compon

APA, Harvard, Vancouver, ISO, and other styles

38

Ma, Binhui, Wenbiao Tang, Tian Lan, Xu Deng, and Bicheng Du. "Three-Dimensional Discrete Element Analysis of Bearing Characteristics of Concrete–Cored Sand–Gravel Pile Composite Foundation under Cyclic Dynamic Load." Buildings 14, no. 6 (2024): 1660. http://dx.doi.org/10.3390/buildings14061660.

Full text

Abstract:

Concrete-cored sand–gravel piles are a kind of composite pile formed by wrapping a concrete-cored pile with a sand–gravel shell, which has the advantages of both a rigid pile and bulk-material pile. The bearing characteristics of the concrete-cored sand–gravel pile composite foundation were investigated by establishing a three-dimensional discrete element numerical model for a cyclic dynamic loading test. The results show that the vertical stress of the core pile body fluctuates greatly at the beginning of loading, and the fluctuation amplitude decreases with the depth, and gradually tends to

APA, Harvard, Vancouver, ISO, and other styles

39

Fan, Zhaoqi, Daoyong Yang, and Xiaoli Li. "Quantification of Sand Production Using a Pressure-Gradient-Based Sand-Failure Criterion." SPE Journal 24, no. 03 (2019): 988–1001. http://dx.doi.org/10.2118/185009-pa.

Full text

Abstract:

Summary Cold heavy-oil production with sand (CHOPS) has been one of the major recovery processes for developing unconsolidated heavy-oil reservoirs by taking advantage of sand production and foamy-oil flow. However, effective characterization and accurate prediction of sand production is still a challenge. In this work, a pressure-gradient-based sand-failure criterion is proposed for quantifying sand production and characterizing wormhole propagation. The proposed sand-failure criterion was initially developed at the pore-scale level, while a pseudointeraction force between two neighboring san

APA, Harvard, Vancouver, ISO, and other styles

40

Fairburn, W. A. "GEOMETRY OF RESERVOIR TRENDS IN THE EPSILON FORMATION SANDS, SOUTHERN COOPER BASIN, SOUTH AUSTRALIA." APPEA Journal 32, no. 1 (1992): 339. http://dx.doi.org/10.1071/aj91027.

Full text

Abstract:

Sandstone reservoirs within the Lower Permian Epsilon Formation, despite being gas productive in several fields in the Cooper Basin of South Australia, in particular Big Lake and Moomba, have proved to be elusive targets for exploration. This is mainly due to the distribution pattern of these sands, which differs markedly from that of the thicker and laterally extensive fluvial sands which are prevalent in the Toolachee and Patchawarra formations. As a consequence, there has been some acceptance that the distribution of Epsilon Formation reservoirs are unpredictable.Log correlation studies of

APA, Harvard, Vancouver, ISO, and other styles

41

Oyeneyin, Babs Mufutau, Amol Bali, and Ebenezer Adom. "Optimisation of Steam Assisted Gravity Drainage [SAGD] for Improved Recovery from Unconsolidated Heavy Oil Reservoirs." Advanced Materials Research 367 (October 2011): 403–12. http://dx.doi.org/10.4028/www.scientific.net/amr.367.403.

Full text

Abstract:

Most of the heavy oil resources in the world are in sandstone reservoir rocks, the majority of which are unconsolidated sands which presents unique challenges for effective sand management. Because they are viscous and have less mobility, then appropriate recovery mechanisms that lower the viscosity to the point where it can readily flow into the wellbore and to the surface are required. There are many cold and thermal recovery methods assisted by gravity drainage being employed by the oil industry. These are customised for specific reservoir characteristics with associated sand production and

APA, Harvard, Vancouver, ISO, and other styles

42

Minh, Chanh Cao, and Padmanabhan Sundararaman. "Nuclear-Magnetic-Resonance Petrophysics in Thin Sand/Shale Laminations." SPE Journal 16, no. 02 (2010): 223–38. http://dx.doi.org/10.2118/102435-pa.

Full text

Abstract:

Summary We discuss the use of nuclear-magnetic-resonance (NMR) logging in the petrophysical evaluation of thin sand/shale laminations. NMR helps detect thin beds, determine fluid type, establish the hydrocarbon type and volume if hydrocarbon is present, and, finally, determine the permeability of the sand layers (as opposed to that of the sand/shale system). Experiments were conducted on samples of 100% sand, 100% clay, and sand/clay layers with an NMR-logging tool at surface to verify the characteristic T2 bimodal relaxation distribution often observed in NMR logs that are acquired in thin be

APA, Harvard, Vancouver, ISO, and other styles

43

Wang, Xiuyu, Chuanying Zhang, and Guorui Sun. "Investigation on Swelling Performance of Oil Sands and Its Impact on Oil Production during SAGD Processes." Energies 15, no. 18 (2022): 6744. http://dx.doi.org/10.3390/en15186744.

Full text

Abstract:

SAGD (Steam Assisted Gravity Drainage) is used in Canadian fields where there are interlayers that impede steam chamber development and thus impede production. Many experiments have been conducted on the effect of interlayers on oil recovery. However, the swelling characteristics of interlayers under different conditions, as well as the possible clay mineral transformation and particle migration of clay particles at high temperatures, are rarely studied. In this paper, the swelling characteristics of natural oil sands and artificial clay samples were studied by high temperature hydration swell

APA, Harvard, Vancouver, ISO, and other styles

44

Bakhtiyarov, Sayavur I. "Numerical Simulations and Experimental Study of Liquid Metal Flow Around Sand Core." Journal of Fluids Engineering 128, no. 3 (2005): 541–47. http://dx.doi.org/10.1115/1.2175160.

Full text

Abstract:

This paper presents the results of experimental and numerical studies of the hot distortion phenomenon in the phenolic urethane cold box systems used in metal casting. Dual Pushrod Dilatometry has been used to measure a thermal expansion/contraction of phenolic urethane cold box sand core specimens at temperatures ranging from 20°C to 600°C. High temperature tensile tests showed that the tensile strength of the phenolic urethane cold box sand cores is significantly affected by the bench life, temperature and binders level. High temperature hot distortion furnace tests on cylindrical cores show

APA, Harvard, Vancouver, ISO, and other styles

45

Korotchenko, A. Yu, D. E. Khilkov, A. A. Khilkova, and M. V. Tverskoy. "Improving the Quality of Production of Sand Core on Core Shooting Machines." Materials Science Forum 989 (May 2020): 589–94. http://dx.doi.org/10.4028/www.scientific.net/msf.989.589.

Full text

Abstract:

The article is devoted to the study of the method of modeling the core shooting process of manufacturing core from cold hardening mixtures (CHM) in the software package Flow-3D, as well as consideration of recommendations on the parameters of the core shooting process, to ensure quality castings of cast iron and steel. This technology of production of cores belongs to technologies which are widely used in foundry production.

APA, Harvard, Vancouver, ISO, and other styles

46

Dai, Yu, Quan-yang Ma, Xiao-hua Li, et al. "The Research on Characterization of Crushability for Foundry Sand Particles." Archives of Foundry Engineering 17, no. 4 (2017): 231–35. http://dx.doi.org/10.1515/afe-2017-0161.

Full text

Abstract:

AbstractIn this paper, crushability of foundry sand particles was studied. Three kinds of in-service silica sands in foundry enterprises selected as the study object, and foundry sand particles were subjected to mechanical load and thermal load during service were analyzed. A set of methods for simulating mechanical load and thermal load by milling and thermal-cold cycling were designed and researched, which were used to characterize the crushability for silica sand particles, the microstructure was observed by SEM. According to the user’s experience in actual application, the crushability of

APA, Harvard, Vancouver, ISO, and other styles

47

SULAIMAN, Izzat Niazi, and Yahya Jirjees TAWFEEQ. "A LABORATORY SYSTEM FOR INVESTIGATING OF FLUIDS FLOW CAPACITY THROUGH UNCONSOLIDATED SAND SAMPLES." Periódico Tchê Química 17, no. 36 (2020): 634–45. http://dx.doi.org/10.52571/ptq.v17.n36.2020.649_periodico36_pgs_634_645.pdf.

Full text

Abstract:

Practically all studies of reservoir engineering involve detailed knowledge of fluid flow characteristics. The fluid flow performance in porous media is affected by pressure, flow rate, and volume of single fluid phases. Permeability is a measure of how well a porous media allows the flow of fluids through it. Permeability and porosity form the two significant characteristics of reservoir rocks. This research aimed to present the design of laboratory equipment to test the ability of fluid flow through different sandstone samples. Two sand core samples (coarse sand sample and fine sand sample)

APA, Harvard, Vancouver, ISO, and other styles

48

Adagunodo, T. A., and I. A. Akinlabi. "Petrophysical analysis to determine the hydrocarbon prospectivity of sands in AA field, Niger Delta." IOP Conference Series: Earth and Environmental Science 1342, no. 1 (2024): 012042. http://dx.doi.org/10.1088/1755-1315/1342/1/012042.

Full text

Abstract:

Abstract Petrophysical analysis is a crucial process in the oil and gas industry. It entails the analysis and interpretation of well logs, fluid samples or core smaples to understand the behaviour of the embedded reservoirs in the subsurface. Three well logs from AA field were provided for this study, but two well data were finally loaded to the workstation due to absence of key well logs (such as gamma ray and density logs) from the third well. The quality control check of the data was done prior to the uploading of data. Delineation of lithologies and identification of hydrocarbon reservoirs

APA, Harvard, Vancouver, ISO, and other styles

49

Jamrozowicz, Ł. "Influence of the Gas Dosage Method on Pressure Changes and Technological Properties of Core Sand Used in the Technology Resol-Co2." Archives of Metallurgy and Materials 58, no. 3 (2013): 891–94. http://dx.doi.org/10.2478/amm-2013-0094.

Full text

Abstract:

Abstract The results of gas pressure measurements in intergranular spaces of fast-setting sands hardened by active gaseous factor are presented in the paper. The research stand and the measuring methodology are described. Investigations concern the determination and recording gas pressure changes in the core sand along the hardened core, in three measuring points. The hardening gas was introduced both in a continuous and impulse way (gas-pause) at a constant pressure. The determined pressure changes of the active gas, which takes part in the chemical reaction of the hardening process, are comp

APA, Harvard, Vancouver, ISO, and other styles

50

Kukartsev, Viktor A., Vladislav V. Kukartsev, and Vadim S. Tynchenko. "AlpHaset Process and Molding Sands in Russia." Materials Science Forum 992 (May 2020): 534–39. http://dx.doi.org/10.4028/www.scientific.net/msf.992.534.

Full text

Abstract:

The advantages of the AlpHaset process, the features of its application, the requirements for the materials used are considered. Molding sands, making in Russia are analyzed. It is noted that the consumption of molding and core mixture used in the manufacture of castings using this process is reduced by 3-4 times. The mixture after knocking out is regenerated up to 90%, which, in comparison with liquid glass, does not require the removal of spent molding and core mixtures to the dump, thereby, improving the environmental situation in the industrial zone. In addition, this process contributes t

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!