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Journal articles on the topic 'Test Pattern Compaction'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Hou, Jing Ru, and Li Jun Zhao. "Effect of Different Compaction Methods on Bridge Pavement." Advanced Materials Research 671-674 (March 2013): 1073–77. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.1073.

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In order to analyze the influence of different compaction methods on bridge deck vibration and bridge pavement compaction quality, the field test and laboratory test of oscillating compaction and vibrating compaction were carried out. The results demonstrated bridge deck vibration caused by the intrinsic exciting force of compactor contributed to vibrating compaction. On the pattern of oscillating compaction, the disturbance of bridge deck due to the exciting force of compactor is the main factor to induce bridge vibration. Furthermore, the vibration acceleration and amplitude in lateral, long

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Ayari, B., and B. Kaminska. "A new dynamic test vector compaction for automatic test pattern generation." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 13, no. 3 (1994): 353–58. http://dx.doi.org/10.1109/43.265676.

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MATSUNAGA, Yusuke. "A Test Pattern Compaction Method Using SAT-Based Fault Grouping." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E99.A, no. 12 (2016): 2302–9. http://dx.doi.org/10.1587/transfun.e99.a.2302.

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Abdullah, Ayub Chin, and Chia Yee Ooi. "Study on Test Compaction in High-Level Automatic Test Pattern Generation (ATPG) Platform." Circuits and Systems 04, no. 04 (2013): 342–49. http://dx.doi.org/10.4236/cs.2013.44046.

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Saravanan, S., and Har Narayan Upadhyay. "Achieving Low Power Test Pattern By Efficient Compaction Method For SoC Design." Journal of Artificial Intelligence 5, no. 4 (2012): 244–48. http://dx.doi.org/10.3923/jai.2012.244.248.

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Qu, Yang, Ying Dai, and Han Yang Li. "Transverse Compaction Analysis of 2.5D Preform Composite." Key Engineering Materials 729 (February 2017): 51–57. http://dx.doi.org/10.4028/www.scientific.net/kem.729.51.

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Transverse compaction is an important pattern of deformation during the composite resin transfer molding (RTM) process. Reasonable compaction rate is related to both the composite mould design and the fiber volume fraction of the final composite. In this paper, a mesoscopic geometry model based on CT scanning of 2.5D preform reinforcements is presented. Applying this model to the FEM simulation of transverse compaction, we prove the validation on simulating transverse compaction property of 2.5D preform by comparing to results of compaction test. Orientation angle during the progressive compac

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Nithya, N. "An Efficient Implementation of Built in Self Diagnosis for Low Power Test Pattern Generator." International Journal of Students' Research in Technology & Management 3, no. 2 (2015): 269–72. http://dx.doi.org/10.18510/ijsrtm.2015.326.

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A New architecture of Built-In Self-Diagnosis is presented in this project. The logic Built-In-Self-Test architecture method is extreme response compaction architecture. This architecture first time enables an autonomous on-chip evaluation of test responses with negligible hardware overhead. Architecture advantage is all data, which is relevant for a subsequent diagnosis, is gathered during just one test session. Due to some reasons, the existing method Built-In Self-Test is less often applied to random logic than to embedded memories. The generation of deterministic test patterns can become p

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Santini, Manuela Favarin, Marília Pivetta Rippe, Gisele Jung Franciscatto, et al. "Canal Preparation and Filling Techniques do not Influence the Fracture Resistance of Extensively Damaged Teeth." Brazilian Dental Journal 25, no. 2 (2014): 129–35. http://dx.doi.org/10.1590/0103-6440201302392.

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The purpose of this study was to assess the fracture resistance of extensively damaged teeth after two root canal preparation techniques (hand and rotary files) and after two filling techniques (active and passive compaction). Sixty-eight maxillary canines roots with an apical diameter equal to that of a #25 K-file were embedded in acrylic resin and the periodontal ligament was simulated by using a polyether impression material. The roots were randomly distributed into four groups (n=17): hand preparation and active compaction (HA), hand preparation and passive compaction (HP), rotary preparat

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ZHANG, Wenpo, Kazuteru NAMBA, and Hideo ITO. "Scan Shift Time Reduction Using Test Compaction for On-Chip Delay Measurement." IEICE Transactions on Information and Systems E97.D, no. 3 (2014): 533–40. http://dx.doi.org/10.1587/transinf.e97.d.533.

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YAMAZAKI, Hiroshi, Motohiro WAKAZONO, Toshinori HOSOKAWA, and Masayoshi YOSHIMURA. "A Test Compaction Oriented Don't Care Identification Method Based on X-bit Distribution." IEICE Transactions on Information and Systems E96.D, no. 9 (2013): 1994–2002. http://dx.doi.org/10.1587/transinf.e96.d.1994.

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11

Mirza, S. Idris. "Compaction of dune sand backfill by concrete shaft vibrators." Canadian Geotechnical Journal 29, no. 2 (1992): 315–21. http://dx.doi.org/10.1139/t92-035.

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Backfilling is a time-consuming operation at any construction project. Because of construction constraints and to minimize excavation and backfilling costs, utility trenches are made as narrow as practicable, which precludes the use of large compactors. The backfill is therefore placed in thin layers and compacted with hand compactors, making backfilling a slow operation. This paper presents the details of development of a fast, effective, and reliable backfill compaction procedure. This method is based on the concept that the sand being a cohesionless material can be easily densified under it

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Naderi, Navid, Pedram Roshani, Masoud Zabihi Samani, and Mohammad Amin Tutunchian. "Application of Genetic Programming for Estimation of Soil Compaction Parameters." Applied Mechanics and Materials 147 (December 2011): 70–74. http://dx.doi.org/10.4028/www.scientific.net/amm.147.70.

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The aim of this study is to propose two numerical models by a well-known soft computing method, Genetic Programming (GP), for the estimation of soils compaction parameters. Genetic Programming is a pattern recognition approach that has the ability of modeling the non-linear behavior of complex engineering problems. The input variables were the soil classification properties, and the outputs were the Optimum Moisture Content (OMC) and Maximum Dry Density (MDD). To provide model, a database including properties of different soils classified as CH, CI, CL, GC, GM, MH, MI, ML and SC was used. In a

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El-Mahlawy, Mohamed H., Sherif Hussein, and Gouda I. Mohamed. "New Hybrid-Based Self-Test Strategy for Faulty Modules of Complex Microcontroller Systems." Electronics ETF 22, no. 2 (2019): 59. http://dx.doi.org/10.7251/els1822059e.

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In this paper, a new hybrid test strategy, called hybrid-based self-test (HYBST), is presented to test complex digital circuits such as microcontrollers. This test strategy integrates the signature multi-mode hardware-based self-test (SM-BST) with the software-based self-test (SBST). In this test strategy, the microcontroller is divided into a number of main modules, and then test subroutines are used to functionally test each module, based on its instruction set architecture (ISA). The ISA is used to generate test subroutines that represent test pattern generators (TPGs) and part of the test

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Hu, You Chang, Jun Min Shen, Guang Dou Gu, and Hua Nan Cai. "Compressive Properties of Crushed Stone-Loess Reinforced with Geogrid." Applied Mechanics and Materials 353-356 (August 2013): 589–92. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.589.

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In order to study the mechanical properties of Crushed Stone-Loess (CSL), a mixture of loess and crushed stone, and Geogrid-reinforced CSL (GCSL), a series of unconfined compression tests were conducted using samples prepared respectively with CSL, GCSL, Pure Loess (PL) or Geogrid-reinforced PL (GPL). Samples varied either in the number of geogrid-reinforcement layers or in the relative compaction / in the content of crushed stone. Based on the analysis of the test results, the following conclusions are given: (1) The pattern of compressive stress-strain curves of GCSL changes gradually from o

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Liang, Hong, Yan Wang, Tian Ping Zhou, et al. "Dry and Wet Cycle Tri-Axial Test Research of Silt." Applied Mechanics and Materials 90-93 (September 2011): 41–43. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.41.

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Abstract. Silt in some areas of our country is very extensive, its distribution is different from the cohesive soil, or sand soil, has unique engineering characteristic. Silt regional characteristics make it has many unique physic-mechanical performance. This article take the G209 (Inner Mongolia Helin to Qingshuihe section) the roadbed silty soil as the study object, study its basic physics, the mechanical properties as well as the distortion and the intensity change rule under the dry-wet circulation, do a comprehensive and systematic analysis about varieties of basic engineering characteris

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Afriani, Fitri, Evi J, Zaitun Zaitun, and Yuant Tiandho. "Improvement of Hardness of Hydroxyapatite by the Addition of Silica from Tin Tailings." Journal of Engineering and Scientific Research 2, no. 2 (2020): 85–89. http://dx.doi.org/10.23960/jesr.v2i2.48.

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The application of bone scaffolding in bone therapy is an alternative solution developed in bone tissue engineering technology to avoid bone donors' scarcity. The main requirement for a material that can be used as a scaffold is that it is biocompatible. Hydroxyapatite is a calcium phosphate ceramic that is often used as the primary material for scaffolding because it has good biocompatibility properties. However, like most ceramics, hydroxyapatite has low mechanical properties. In this study, we synthesized hydroxyapatite from cockleshell waste. To improve hydroxyapatite's mechanical properti

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Maestre, F. T. "Linking the spatial patterns of organisms and abiotic factors to ecosystem function and management: insights from semi-arid environments." Web Ecology 6, no. 1 (2006): 75–87. http://dx.doi.org/10.5194/we-6-75-2006.

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Abstract. Numerous theoretical and modeling studies have demonstrated the ecological significance of the spatial patterning of organisms on ecosystem functioning and dynamics. However, there is a paucity of empirical evidence that quantitatively shows how changes in the spatial patterns of the organisms forming biotic communities are directly related to ecosystem structure and functioning. In this article, I review a series of experiments and observational studies conducted in semi-arid environments from Spain (degraded calcareous shrubland, steppes dominated by Stipa tenacissima, and gypsum s

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18

Chen, Hui, and Donghai Liu. "Stochastic finite element analysis of rockfill dam considering spatial variability of dam material porosity." Engineering Computations 36, no. 9 (2019): 2929–59. http://dx.doi.org/10.1108/ec-06-2018-0266.

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Purpose The purpose of this study is to develop a stochastic finite element method (FEM) to solve the calculation precision deficiency caused by spatial variability of dam compaction quality. Design/methodology/approach The Choleski decomposition method was applied to generate constraint random field of porosity. Large-scale laboratory triaxial tests were conducted to determine the quantitative relationship between the dam compaction quality and Duncan–Chang constitutive model parameters. Based on this developed relationship, the constraint random fields of the mechanical parameters were gener

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Camargo, L. S. A., T. Aguirre-Lavin, P. Adenot, T. D. Araujo, E. D. Souza, and N. Beaujean. "77 EFFECT OF HEAT SHOCK DURING IN VITRO MATURATION ON HETEROCHROMATIN COMPACTION IN BOVINE EMBRYOS AT 4- AND 8-CELL STAGES: PRELIMINARY STUDY." Reproduction, Fertility and Development 27, no. 1 (2015): 132. http://dx.doi.org/10.1071/rdv27n1ab77.

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High temperatures cause several reproductive losses in cattle. Under in vitro conditions, heat shock decreases oocyte developmental competence and influences embryonic gene expression (Gendelman and Roth 2012 Anim. Reprod. Sci. 134, 125–134). This preliminary study aimed to evaluate whether heat shock during oocyte in vitro maturation (IVM) could have any further effect on chromatin remodelling of fertilized embryos at 4- and 8-cell stages, once such modifications are required for the gene activation in bovine embryos. We evaluated the distribution of heterochromatin 1 (HP1β) and of histone H3

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20

Peterson, Robert L., Kamyar C. Mahboub, R. Michael Anderson, Eyad Masad, and Laith Tashman. "Superpave® Laboratory Compaction Versus Field Compaction." Transportation Research Record: Journal of the Transportation Research Board 1832, no. 1 (2003): 201–8. http://dx.doi.org/10.3141/1832-24.

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Laboratory compaction is an important part of asphalt mix design. For the mix design process to be effective, laboratory compaction must adequately simulate field compaction. In this study mechanical properties measured with the Superpave® shear tester were used to evaluate field compaction and laboratory compaction. The field compaction consisted of three test sections with different compaction patterns. The laboratory compaction used the Superpave gyratory compactor with adjustments to several parameters. Results of this study indicate that current gyratory protocol produces specimens with s

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Weng, Xiao Lin, Liu Jun Zhang, and Wei Wang. "Research on the Treatment for Water Damage to Widened Subgrade of Collapsible Loess Based on Centrifuge." Applied Mechanics and Materials 99-100 (September 2011): 821–25. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.821.

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A centrifugal earth structure deformation test system has been developed to study the mechanism and pattern of subgrade damage as caused by water wetting to the widened roads in collapsible loess areas. It incorporates an upgraded electric sensor logging system and a centrifugal field image pickup system and provides a centrifuge model test platform for both the new road and the original road that are subject to water wetting and infiltration. A centrifuge test model on which actual stress distribution can be simulated was set up to study the forms of water damage to the widened subgrade. In t

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Liu, Yi, Will N. Browne, and Bing Xue. "A Comparison of Learning Classifier Systems’ Rule Compaction Algorithms for Knowledge Visualization." ACM Transactions on Evolutionary Learning and Optimization 1, no. 3 (2021): 1–38. http://dx.doi.org/10.1145/3468166.

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Learning Classifier Systems (LCSs) are a paradigm of rule-based evolutionary computation (EC). LCSs excel in data-mining tasks regarding helping humans to understand the explored problem, often through visualizing the discovered patterns linking features to classes. Due to the stochastic nature of EC, LCSs unavoidably produce and keep redundant rules, which obscure the patterns. Thus, rule compaction methods are invoked to produce a better population by removing problematic rules. Previously, compaction methods have neither been tested on large-scale problems nor been assessed on the performan

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Li, Songlin, Qiang Xu, Minggao Tang, Huajin Li, He Yang, and Yong Wei. "Centrifuge Modeling and the Analysis of Ancient Landslides Subjected to Reservoir Water Level Fluctuation." Sustainability 12, no. 5 (2020): 2092. http://dx.doi.org/10.3390/su12052092.

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Landslides are among the most severe natural hazards with significant impacts in human life and infrastructure. The Three Gorges Reservoir Area (TGRA) is vulnerable to landslides because of the geological environment and human activities. A centrifuge model test of a landslide with a planar sliding surface in the TGRA was conducted. Based on the multiple monitoring systems composed of a 3D laser scanner, pore water pressure transducers, particle image velocimetry and earth pressure sensors, multiphysical data were obtained. The work described here had the objective of researching the long-term

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Duruoha, Charles, Cassio Roberto Piffer, and Paulo Arbex Silva. "CORN ROOT LENGTH DENSITY AND ROOT DIAMETER AS AFFECTED BY SOIL COMPACTION AND SOIL WATER CONTENT." IRRIGA 12, no. 1 (2007): 14–26. http://dx.doi.org/10.15809/irriga.2007v12n1p14-26.

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CORN ROOT LENGTH DENSITY AND ROOT DIAMETER AS AFFECTED BY SOIL COMPACTION AND SOIL WATER CONTENT Charles Duruoha1; Cassio Roberto Piffer2; Paulo Arbex Silva2(1) United States Department of Agriculture (USDA-ARS), National Soil Dynamics Laboratory, Auburn, AL - U.S.A, duruohan@juno.com (2) Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, Departamento de Engenharia Rural, Botucatu, SP 1 ABSTRACT Negative effects of soil compaction have been recognized as one of the problems restricting the root system and consequently impairing yields, especially in the Southern Coastal Plain o

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Lvovska, Tetyana, Tetyana Lytvynenko, and Alla Kariuk. "Soil Compaction Methods Development." International Journal of Engineering & Technology 7, no. 3.2 (2018): 636. http://dx.doi.org/10.14419/ijet.v7i3.2.14605.

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A process of soil compaction methods development including new authors’ methodology is described. The importance of soil compaction for engineering purposes is substantiated. Preconditions for Proctor compaction test appearance are highlighted. Proctor’s approach and suggestions for the degree of soil compaction assessing are analyzed. Soviet version of Proctor’s equipment and Modified Proctor compaction test are given. Principal differences between Proctor test, Standard compaction test and Modified Proctor test are presented. The problems and disadvantages of existent soil compaction tests a

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Zhou, Huisi, Dantong Ouyang, and Liming Zhang. "Efficient static compaction of test patterns using partial maximum satisfiability." Tsinghua Science and Technology 26, no. 1 (2021): 1–8. http://dx.doi.org/10.26599/tst.2019.9010046.

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27

Olabode, Oluwaseun Franklin, and Yinusa Ayodele Asiwaju-Bello. "Insights from the Engineering Geological Mapping of Four Basement Rocks Derived Soils." Sustainable Geoscience and Geotourism 2 (November 2018): 16–34. http://dx.doi.org/10.18052/www.scipress.com/sgg.2.16.

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Due to the rapid expansion and associated construction of civil engineering structures on the Federal University of Technology, Akure (FUTA) campus, there arose an urgent need for an engineering geological mapping of the underlying soils (residual soils). Generalized geological mapping revealed four types of basement rocks namely migmatite-gneisses, granites, quartzites and charnockites. Results from the fifty (50) soil samples from twenty-five test pits collected all over the spread of the campus coverage of 6.4 km2revealed that the campus is underlain by soils of granular and clayey composit

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Balasubramanian, S., W. J. Son, B. Mohana Kumar, et al. "167 EXPRESSION PATTERN OF GAP JUNCTIONAL CONNEXINS DURING IN VITRO AND IN VIVO PREIMPLANTATION EMBRYO DEVELOPMENT IN BOVINE." Reproduction, Fertility and Development 20, no. 1 (2008): 163. http://dx.doi.org/10.1071/rdv20n1ab167.

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During preimplantation development, several connexin proteins are expressed and assembled into gap junctions in the plasma membrane at compaction but the functional significance of connexin diversity remains controversial. The present investigations were (i) to compare the expression pattern of a panel of gap junctional connexin (Cx) gene transcripts from in vitro-produced (IVP) under low (5%) and high (20%) oxygen (O2) concentrations and in vivo-derived (IVD) bovine embryos during various preimplantation stages, and (ii) to evaluate the expression of the same set of gene transcripts in blasto

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Hülle, Robert, Petr Fišer, and Jan Schmidt. "ZATPG: SAT-based test patterns generator with zero-aliasing in temporal compaction." Microprocessors and Microsystems 61 (September 2018): 43–57. http://dx.doi.org/10.1016/j.micpro.2018.05.001.

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Wang, Yixian, Panpan Guo, Xian Li, Hang Lin, Yan Liu, and Haiping Yuan. "Behavior of Fiber-Reinforced and Lime-Stabilized Clayey Soil in Triaxial Tests." Applied Sciences 9, no. 5 (2019): 900. http://dx.doi.org/10.3390/app9050900.

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The beneficial role of combining fiber reinforcement with lime stabilization in altering soil behavior has been established in the literature. However, the coupling effect of their combination still remains unclear in terms of its magnitude and microscopic mechanism, especially for natural fibers with special microstructures. The objective of this study was to investigate the coupling effect of wheat straw fiber reinforcement and lime stabilization on the mechanical behavior of Hefei clayey soil. To achieve this, an experimental program including unconsolidated–undrained (UU) triaxial tests an

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Xue, Zhichao, Weidong Cao, Shutang Liu, Fei Ren, and Qilun Wu. "Artificial Neural Network-Based Method for Real-Time Estimation of Compaction Quality of Hot Asphalt Mixes." Applied Sciences 11, no. 15 (2021): 7136. http://dx.doi.org/10.3390/app11157136.

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With the advancement of intelligent compaction technology, real-time quality control has been widely investigated on the subgrade, while it is insufficient on asphalt pavement. This paper aims to estimate the real-time compaction quality of hot mix asphalt (HMA) using an artificial neural network (ANN) classifier. A field experiment of HMA compaction was designed. The vibration patterns of the drum were identified by using the ANN classifier and classified based on the compaction levels. The vibration signals were collected and the degree of compaction was measured in the field experiment. The

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Das, Sunil R., Nita Goel, Wen B. Jone, and Amiya R. Nayak. "Syndrome Signature in Output Compaction for VLSI Built-in Self-Test." VLSI Design 7, no. 2 (1998): 191–201. http://dx.doi.org/10.1155/1998/45472.

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In this paper, we focus on the use of signature-based output compaction technique for built-in self-testing of VLSI circuits. We give algorithm for single-output and multiple-output signature generation using exhaustive test patterns extending the syndrome conccpt. The signature wc develop is a functional signature and is very effective for both input and internal line fault detection, as seen from simulation on various benchmark circuits. The signature generators can bc easily implemented using the current VLSI technology.

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Novák, O., Z. Plíva, J. Nosek, A. Hlawiczka, T. Garbolino, and K. Gucwa. "Test-Per-Clock Logic BIST with Semi-Deterministic Test Patterns and Zero-Aliasing Compactor." Journal of Electronic Testing 20, no. 1 (2004): 109–22. http://dx.doi.org/10.1023/b:jett.0000009317.31947.c8.

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Duruoha, Charles, Cassio Roberto Piffer, and Paulo Roberto Arbex Silva. "COTTON ROOT VOLUME AND ROOT DRY MATTER AS A FUNCTION OF HIGH SOIL BULK DENSITY AND SOIL WATER STRESS." IRRIGA 13, no. 4 (2008): 476–91. http://dx.doi.org/10.15809/irriga.2008v13n4p476-491.

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COTTON ROOT VOLUME AND ROOT DRY MATTER AS A FUNCTION OF HIGH SOIL BULK DENSITY AND SOIL WATER STRESS Charles Duruoha1; Cassio Roberto Piffer2; Paulo Roberto Arbex Silva21United States Department of Agriculture (USDA-ARS), National Soil Dynamics Laboratory, Auburn, AL, U.S.A,. duruohan@juno.com 2Rural Engineering Departament, School of Agronomic Sciences, São Paulo State University, Botucatu, SP 1 ABSTRACT Soil compaction reduces root growth, affecting the yield, especially in the Southern Coastal Plain of the USA. Simulations of the root restricting layers in greenhouses are necessary to devel

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Wei, Ya, Francis T. K. Au, Jing Li, and Neil C. M. Tsang. "Experimental and numerical investigation of post-tensioned concrete flat slabs in fire." Journal of Structural Fire Engineering 7, no. 1 (2016): 2–18. http://dx.doi.org/10.1108/jsfe-03-2016-001.

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Purpose This paper aims to understand the structural fire performance of two-way post-tensioned flat slabs, particularly their deformations and load-carrying mechanisms in fire, and to explore the behaviour of post-tensioned high-strength self-compacting concrete flat slabs with unbonded tendons in fire. Design/methodology/approach Four tests of post-tensioned high-strength self-compacting concrete flat slabs were conducted under fire conditions. Numerical modelling using the commercial package ABAQUS was conducted to help interpret the test results. Findings Two of the specimens with lower mo

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Wolken, Jane M., Simon M. Landhäusser, Victor J. Lieffers, and Miles F. Dyck. "Differences in initial root development and soil conditions affect establishment of trembling aspen and balsam poplar seedlings." Botany 88, no. 3 (2010): 275–85. http://dx.doi.org/10.1139/b10-016.

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Three studies examined the establishment and early growth of trembling aspen ( Populus tremuloides Michx.) and balsam poplar ( Populus balsamifera L.) from seed. To better understand the differences in initial developmental patterns between both species, we monitored germination and early growth in a washed sand medium with a balanced fertilizer added. Two additional studies used the Ae, Bm, and Bt horizons of a Brunisolic Gray Luvisol soil to test the impact of different soil horizons and conditions (compaction and moisture) on the establishment and early growth of trembling aspen and balsam

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Helincks, Peter, Wouter de Corte, Veerle Boel, and Geert de Schutter. "Influence of Steel Fibre Reinforcement on the Shear Resistance and Crack Pattern Formation of Self-Compacting Concrete Beams." Key Engineering Materials 452-453 (November 2010): 669–72. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.669.

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This paper presents the results of experimental tests carried out on steel fibre reinforced self-compacting concrete (SFR-SCC) beams without stirrups. Sixteen beams are cast using four mixtures of SCC with different steel fibre content, while the longitudinal reinforcement is kept constant in all test members. The beams are subjected to four point bending tests at a shear span-to-depth ratio of 2. The ultimate shear stress is recorded, as well as the crack pattern and the mid-span beam deflection. Test results show that as fibre content increases, higher ultimate shear stresses are achieved. W

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Murer, A. S., K. L. McClennen, T. K. Ellison, et al. "Steam Injection Project in Heavy-Oil Diatomite." SPE Reservoir Evaluation & Engineering 3, no. 01 (2000): 2–12. http://dx.doi.org/10.2118/60853-pa.

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Summary A steam injection project was conducted in diatomite containing heavy, biodegraded oil (12°API, ?3,000 cp) in the South Belridge field, Kern County, California. The diatomite interval tested (the San Joaquin, Etchegoin, and Belridge diatomites) underlies an active steamflood in the sandstone of the Tulare formation. Initially, the test was to determine the viability of cyclic steam recovery from an unpropped, steam fractured completion in the diatomite. Four standard steam cycles were completed, with sluggish oil recovery [oil-steam ratios (OSR) were less than 0.1]. The well was then h

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Li, Jing, Xian Feng Qu, Lin Fu Wang, Chong Qing Zhu, and Juan Li. "Experimental Research on Compressive Strength of Self-Compacting Concrete with Recycled Coarse Aggregates." Advanced Materials Research 306-307 (August 2011): 1084–87. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.1084.

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In order to study cubic compressive strength of recycled coarse aggregates-filled concrete systematically, recycled coarse aggregates with the particle size from 50 to150mm are made from waste solid contents, which are artificially broken from abandoned rubble and concrete blocks. Based on the mix proportion design method of ordinary concrete and test code for hydraulic concrete, 3 groups of recycled coarse aggregates-filled concrete cubic specimens were prepared and the compressive strength of the specimens were tested. The results showed that basic failure pattern of recycled coarse aggregat

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Safan, Mohamed A. "Shear strength of concrete beams cast with self-compacting concrete containing different fillers and coarse aggregates." Canadian Journal of Civil Engineering 39, no. 7 (2012): 760–70. http://dx.doi.org/10.1139/l2012-062.

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An experimental investigation was conducted to evaluate the shear strength provided by different self-compacting concrete mixes proportioned using different fillers and coarse aggregates. A total of 28 simple beams without shear reinforcement were tested in flexure. The test parameters included the use of gravel versus crushed dolomite as coarse aggregates, the amount of longitudinal reinforcement, and the composition and percentage of fillers. Dolomite stone powder with either silica fume or fly ash was used as fillers replacing cement aiming at reducing the cost of the mix and obtaining bett

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Ashtiani, Mohammad Soleymani, Rajesh P. Dhakal, and Allan N. Scott. "Cyclic response analysis of high-strength self-compacting concrete beam-column joints." Bulletin of the New Zealand Society for Earthquake Engineering 51, no. 1 (2018): 23–33. http://dx.doi.org/10.5459/bnzsee.51.1.23-33.

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In this paper, finite element analysis software “DIANA” is implemented to simulate quasi-static cyclic loading test results of three full-scale beam-column joints cast with high-strength self-compacting concrete (HSSCC). The specimens were designed according to the New Zealand concrete standard (NZS3101 2006). Material models for concrete and steel were calibrated based on the physical characteristics of the materials derived either from laboratory tests or using expressions available in literature. Two-dimensional curved-shell elements were used in modelling the specimens. As the specimens we

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Zhang, Tongwei, Yongfeng Deng, Hengxing Lan, et al. "Experimental Investigation of the Compactability and Cracking Behavior of Polyacrylamide-Treated Saline Soil in Gansu Province, China." Polymers 11, no. 1 (2019): 90. http://dx.doi.org/10.3390/polym11010090.

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Polyacrylamide (PAM) is a water-soluble polymer with the ability to enhance a soil’s stability. PAM is currently being used to prevent irrigation-induced erosion and enhance the infiltration in farmland soil. To improve the compaction properties of the saline-soil-based filling material that is used in highway subgrade and the cracking resistance capacity of a saline soil’s crust, the consistency limits, compactability, microstructure, and cracking morphology of untreated and PAM-treated saline soil were investigated. The saline soils were sampled from the soil crust and a depth of 2.0–3.0 m i

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Ghaddar, Maha G. "Effect of Hollow Shape on the Behavior of Reinforced Self-Compacting Concrete Slender Column Under Eccentric Loading." Engineering and Technology Journal 39, no. 6 (2021): 884–92. http://dx.doi.org/10.30684/etj.v39i6.1504.

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Results of testing reinforced self-compacted concrete slender columns having longitudinal holes concealing PVC pipe in their cross sections under axial compression load and uniaxial bending are presented in this paper. The effect of hollow shape on the performance of slender columns having 200x200mm quadratic cross section and 1300mm long under concentric and eccentric loads was investigated. Three different shapes of central hole: circular, square, and lozenge pattern in addition to the different load eccentricity values were considered to investigate the axial loading resistance and cracking

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Rollinson, Njal, and Jeffrey A. Hutchings. "Why does egg size of salmonids increase with the mean size of population spawning gravels?" Canadian Journal of Fisheries and Aquatic Sciences 68, no. 8 (2011): 1307–15. http://dx.doi.org/10.1139/f2011-069.

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Population mean egg size of salmonids increases with the mean size of gravels in which a population spawns. A long-standing hypothesis is that large larvae cannot navigate small-gravel interstices, so mothers must decrease per-offspring investment when spawning gravels are small. We manipulated the size of incubation gravels and egg size of Atlantic salmon (Salmo salar) to test whether size-related entombment of larvae occurs. We find little evidence of size-related entombment, but we find evidence that gravel size does not affect all larval sizes equally. Larger larvae emerge from small grave

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Kuhn, N. J., and H. Zhu. "GIS-based modeling of runoff source areas and pathways." Geographica Helvetica 63, no. 1 (2008): 48–57. http://dx.doi.org/10.5194/gh-63-48-2008.

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Abstract. The application of runoff models that rely on calibration to future land use and climate conditions is restricted to situations where the reaction of Hydrologic Response Units to environmental change is known. This limitation and the ensuing uncertainty of model results can be avoided when a risk-based approach to landscape and runoff analysis is taken. GIS-based landscape analysis provides the possibility of assessing the risks associated with non-linear responses of Hydrologic Response Units to changing rainfall and land use. In this paper, a runoff module designed for IDRISI-Andes

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Soltani, Deng, Taheri, Mirzababaei, and Vanapalli. "Swell–Shrink Behavior of Rubberized Expansive Clays During Alternate Wetting and Drying." Minerals 9, no. 4 (2019): 224. http://dx.doi.org/10.3390/min9040224.

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The present study examines rubber’s capacity of improving the swell–shrink potential of expansive clays. Two rubber types of fine and coarse categories with different geometrical features were considered. The test program consisted of standard Proctor compaction and cyclic wetting–drying tests. Scanning electron microscopy (SEM) analysis was also performed to identify the soil–rubber amending mechanisms, and to observe the evolution of fabric in response to alternate wetting and drying. Cyclic wetting–drying led to the reconstruction of the soil/soil–rubber microstructure by way of inducing ag

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Cheng, Xiang, Guangming Zhao, Yingming Li, Xiangrui Meng, Qingyi Tu, and Chunliang Dong. "Experimental Study on Mechanical Properties and Energy Dissipation of Gas Coal under Dynamic and Static Loads." Advances in Civil Engineering 2020 (December 15, 2020): 1–14. http://dx.doi.org/10.1155/2020/8815730.

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In order to study the mechanical properties and energy dissipation of gas coal under dynamic and static loads, the static loading and impact tests of different strain rates were carried out by the testing systems of SZW-1000 microcomputer servo pressure tester and separated Hopkinson pressure bar (SHPB) for gas coal in the Panxie Coal Field in Huainan City. In the test, the influence laws of various loading patterns on mechanical properties, failure characteristics, and energy dissipation of gas coal sample were analyzed. The results showed that the stress-strain curve of coal gas under dynami

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Al-Bayati, Nabeel A., Bassman R. Muhammed, and Muroj F. Oda. "Effect of Shear Span to Effective Depth Ratio on the Behavior of Self-Compacting Reinforced Concrete Deep Beams Containing Openings Strengthened with CFRP." Association of Arab Universities Journal of Engineering Sciences 26, no. 1 (2019): 1–9. http://dx.doi.org/10.33261/jaaru.2019.26.1.001.

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Results of test on seven simply supported self-compacting reinforced concrete deep beams, including six of these beams containing circular openings in center of load path are reported in this paper. The objective of the tests was determined the influence of, changing shear span to effective depth ratio a/d, the existence of circular openings in shear span and using inclined strips of carbon fiber polymer (CFRP) on behavior of deep beams. The general trend in crack pattern, the load-deflection response, and the mode of failure of reinforced SCC deep beams were also investigated. All specimens h

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Chen, Kellen, Andrea Vigliotti, Mattia Bacca, Robert M. McMeeking, Vikram S. Deshpande, and Jeffrey W. Holmes. "Role of boundary conditions in determining cell alignment in response to stretch." Proceedings of the National Academy of Sciences 115, no. 5 (2018): 986–91. http://dx.doi.org/10.1073/pnas.1715059115.

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The ability of cells to orient in response to mechanical stimuli is essential to embryonic development, cell migration, mechanotransduction, and other critical physiologic functions in a range of organs. Endothelial cells, fibroblasts, mesenchymal stem cells, and osteoblasts all orient perpendicular to an applied cyclic stretch when plated on stretchable elastic substrates, suggesting a common underlying mechanism. However, many of these same cells orient parallel to stretch in vivo and in 3D culture, and a compelling explanation for the different orientation responses in 2D and 3D has remaine

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Cho, Min-Hyung, James O. Wrabl, James Taylor, and Vincent J. Hilser. "Hidden dynamic signatures drive substrate selectivity in the disordered phosphoproteome." Proceedings of the National Academy of Sciences 117, no. 38 (2020): 23606–16. http://dx.doi.org/10.1073/pnas.1921473117.

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Phosphorylation sites are hyperabundant in the eukaryotic disordered proteome, suggesting that conformational fluctuations play a major role in determining to what extent a kinase interacts with a particular substrate. In biophysical terms, substrate selectivity may be determined not just by the structural–chemical complementarity between the kinase and its protein substrates but also by the free energy difference between the conformational ensembles that are, or are not, recognized by the kinase. To test this hypothesis, we developed a statistical-thermodynamics-based informatics framework, w

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