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Journal articles on the topic 'Replacement and performance'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Jamieson, WR Eric, Eva Germann, Guy J. Fradet, Samuel V. Lichtenstein, and Robert T. Miyagishima. "Bioprostheses and Mechanical Prostheses Predictors of Performance." Asian Cardiovascular and Thoracic Annals 8, no. 2 (2000): 121–26. http://dx.doi.org/10.1177/021849230000800207.

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From 1975 to 1995, 4200 patients had bioprosthetic valve replacements (2240 aortic, 1607 mitral, 353 multiple) and 2038 had mechanical valve replacements (747 aortic, 928 mitral, 363 multiple). Freedom from major thromboembolism or both major thromboembolism and hemorrhage for aortic and mitral valve replacement at 15 years was significantly greater for bioprostheses than mechanical prostheses. Freedom from valve-related mortality and reoperation for both aortic and mitral valve replacements was the same for bioprostheses and mechanical prostheses. Advancing age increased overall mortality (al

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2

Anwar, Faiz Habib, Hilal El-Hassan, Mohamed Hamouda, Gilbert Hinge, and Kim Hung Mo. "Meta-Analysis of the Performance of Pervious Concrete with Cement and Aggregate Replacements." Buildings 12, no. 4 (2022): 461. http://dx.doi.org/10.3390/buildings12040461.

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In recent years, pervious concrete (PC) has gained much attention as one of the strategies for low-impact development (LID) in pavements due to its structural, economic, and road-user benefits. This study sought to review and evaluate changes in the mechanical, hydraulic, and durability performance of PC produced with cement and aggregate replacements. A meta-analysis was conducted to elucidate the feasible range of the replacement percentage and the number of materials that could be used to replace cement and aggregates; single or binary replacements were considered. Results indicated that ce

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3

Zheng, Shiqi, Qing Liu, Fengxia Han, Shan Liu, Tong Han, and Hao Yan. "Basic Mechanical Properties of Self-Compacting Concrete Prepared with Aeolian Sand and Recycled Coarse Aggregate." Buildings 14, no. 9 (2024): 2949. http://dx.doi.org/10.3390/buildings14092949.

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To protect the environment and reduce the consumption of natural resources, this study investigated the performance of self-compacting concrete (SCC) utilizing aeolian sand (AS) as a replacement for fine aggregate and recycled coarse aggregate (RCA) as a replacement for natural coarse aggregate. Twelve mixing ratios were prepared, with AS replacement ratios at 0, 20%, 40%, and 60% and RCA replacement ratios at 0, 25%, and 50%. The evaluation primarily focused on workability, uniaxial compressive strength, split tensile strength, stress–strain curve, modulus of elasticity, and axial compressive

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Beazley, JCS, JP Evans, ND Furness, and CD Smith. "Comparative learning curves for early complications in anatomical and reverse shoulder arthroplasty." Annals of The Royal College of Surgeons of England 100, no. 6 (2018): 491–96. http://dx.doi.org/10.1308/rcsann.2018.0062.

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Introduction There has been a significant increase in the implantation of reverse shoulder replacements over anatomical shoulder replacements in the past five years. Few comparative data exist comparing early complication rates and learning curves. This study aimed to evaluate the early complication rates and learning curves of a single surgeon series of anatomical and reverse shoulder replacements over the first five years of independent practice. Materials and methods The first 100 anatomical and 100 reverse shoulder replacements performed between July 2011 and July 2016 were reviewed to ide

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Shang, Lijun, Guojun Shang, Yongjun Du, Qingan Qiu, Li Yang, and Qinglai Dong. "Post-Warranty Replacement Models for the Product under a Hybrid Warranty." Mathematics 10, no. 10 (2022): 1644. http://dx.doi.org/10.3390/math10101644.

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In this article, by considering both a limited number of failure replacements and a limited number of random working cycles as warranty terms, a hybrid warranty (HW) is designed from the manufacturer’s point of view to warrant the product that does successive projects at random working cycles. The warranty cost produced by HW is derived and analyzed. By defining that HW warrants the product, two types of post-warranty replacement models are investigated from the consumer’s point of view to ensure the reliability of the product through HW, i.e., customized post-warranty replacement and uniform

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Germanovich, A. "Replacement performance of mobile chippers." Актуальные направления научных исследований XXI века: теория и практика 3, no. 4 (2015): 283–86. http://dx.doi.org/10.12737/13946.

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7

Ewens, Michael, and Matt Marx. "Founder Replacement and Startup Performance." Review of Financial Studies 31, no. 4 (2017): 1532–65. http://dx.doi.org/10.1093/rfs/hhx130.

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8

Bull, James, James M. Buick, and Jovana Radulovic. "Investigation of Working Fluid Performance through a Centrifugal Compression System." Applied Mechanics 3, no. 3 (2022): 815–29. http://dx.doi.org/10.3390/applmech3030048.

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Commonly, researchers have investigated many factors that impact the performance of air conditioning and refrigeration systems, such as varied cooling configurations, operating conditions and optimization of specific system components. Although there is an abundance of research detailing the importance of working fluid selection, very few studies focus on how the working fluid selection influences the performance of the individual components of the system, such as the compressor. In this paper, the performances of a selection of working fluids are compared through a centrifugal compressor usin

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Canseco-Tuñacao, H. A. R., K. Remoto, K. Melendres, and I. M. Deguzman. "Recycled Coarse Aggregate from Concrete Waste Using DMDA for Concrete." IOP Conference Series: Earth and Environmental Science 999, no. 1 (2022): 012003. http://dx.doi.org/10.1088/1755-1315/999/1/012003.

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Abstract This study investigates the effect of the replacement of recycled concrete as coarse aggregates using the Densified Mixture Design Algorithm Method (DMDA) in unconfined concrete behavior. DMDA was applied to produce concrete with the least void. Compressive strength, flexural strength and split tensile strength tests were conducted on 7-, 14-, 28- and 56-day old specimens. Compressive strength test results showed that specimens with 20, 30, and 40% RCA replacements at 56 days are relatively lower compared to the control and with 10% RCA replacement specimens. The compressive strengths

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Zhu, Ping Hua, Su Cheng Zhang, and Qun Xia. "Research on Frost Resistance of Recycled High Performance Concrete." Applied Mechanics and Materials 665 (October 2014): 159–62. http://dx.doi.org/10.4028/www.scientific.net/amm.665.159.

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Experimental research on the frost resistance of recycled high performance concrete (RHPC) was carried out, in which three kinds of replacements were considered including recycled coarse or fine aggregate to natural coarse or fine aggregate and together. The results showed that RHPC had the lower dynamic modulus and mass loss than natural aggregate concrete when the replacement of recycled coarse or fine aggregate ranged 30-70% or 10-50%. The best frost resistance of RHPC appeared to the simultaneous replacements of 50% and 10% for recycled coarse and fine aggregate.

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11

Baiee, Ameer. "DEVELOPMENT ULTRA-HIGH STRENGTH CEMENTITIOUS CHARACTERISTICS USING SUPPLEMENTARY CEMENTITIOUS MATERIALS." Journal of Engineering Science 28, no. 3 (2021): 111–15. http://dx.doi.org/10.52326/jes.utm.2021.28(3).10.

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For sustainability purposes, supplementary cementitious materials (SCMs) are considered essential components for gaining ultra-high strength properties of concrete and mortar. This study experimentally investigates the influence of single, binary, and ternary partial cement replacements of the SCMs on the performance of ultra-high-strength mortar. The investigated SCMs were included ground granulated blast furnace slag (GGBS), densified silica fume (DSF), un-densified silica fume (UDSF), and Fly ash (FA). Three replacements ratios were implemented; 10%, 20%, and 30% in addition to mortar witho

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Sabouni, Reem, and Hassan Raad Abdulhameed. "Investigation on Performance of Concrete Incorporating Silica Fume and Local UAE Materials." Key Engineering Materials 803 (May 2019): 222–27. http://dx.doi.org/10.4028/www.scientific.net/kem.803.222.

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In an effort to reduce the amount of cement in the concrete industry and produce greener concrete, emphasis was put on using several industrial by-products such as silica fume, fly ash and slag as partial replacements for cement in concrete. Due to the enormous number of mega reinforced concrete projects constructed in the United Arab Emirates, it is considered to be one of the largest consumers of high strength concrete in the region. On the other hand, only limited research has been done on high strength concrete incorporating local materials in the UAE. The main objective of this research i

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Wardhono, Arie, David W. Law, Mochamad Firmansyah Sofianto, and Meity Wulandari. "Strength performance of fly ash and rice husk ash geopolymer as sustainable infrastructure green materials in supporting SDG 9 and SDG 13." E3S Web of Conferences 568 (2024): 02003. http://dx.doi.org/10.1051/e3sconf/202456802003.

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Cement, the primary material of concrete, is one of the main causes of global warming and climate change issues due to its production process. This paper reports the strength performance of fly ash and rice husk ash geopolymer as cement replacements in sustainable infrastructure green materials in supporting SDG 9 and SDG 13. A comparison with cementbased concrete was applied to identify the strength performance as a cement replacement material. The strength performance was carried out by compressive strength test. The results show that fly ash and rice husk ash can be used as alternative ceme

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Ahmadi, Masoud, Erfan Abdollahzadeh, Mohammad Kashfi, Behnoosh Khataei, and Marzie Razavi. "Life Cycle Assessment and Performance Evaluation of Self-Compacting Concrete Incorporating Waste Marble Powder and Aggregates." Materials 18, no. 13 (2025): 2982. https://doi.org/10.3390/ma18132982.

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This study systematically investigates the utilization of marble industry waste—waste marble powder (WMP) as partial cement replacement and waste marble aggregates (WMA) as partial fine aggregate replacement—in self-compacting concrete (SCC). A detailed experimental program evaluated the effects of various replacement levels (5%, 10%, and 20% for WMP; 20%, 30%, and 40% for WMA) on compressive strength and durability, particularly resistance to aggressive sulfuric acid environments. Results indicated that a 5% WMP replacement increased compressive strength by 4.9%, attributed primarily to the f

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Jingyu Zhang, Jingyu Zhang, Ruihan Zhang Jingyu Zhang, Osama Alfarraj Ruihan Zhang, Amr Tolba Osama Alfarraj, and Gwang-Jun Kim Amr Tolba. "A Memory-Aware Spark Cache Replacement Strategy." 網際網路技術學刊 23, no. 6 (2022): 1185–90. http://dx.doi.org/10.53106/160792642022112306002.

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<p>Spark is currently the most widely used distributed computing framework, and its key data abstraction concept, Resilient Distributed Dataset (RDD), brings significant performance improvements in big data computing. In application scenarios, Spark jobs often need to replace RDDs due to insufficient memory. Spark uses the Least Recently Used (LRU) algorithm by default as the cache replacement strategy. This algorithm only considers the most recent use time of RDDs as the replacement basis. This characteristic may cause the RDDs that need to be reused to be evicted when performing cache

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Bertocci, Gina E., Michael C. Munin, Karen L. Frost, Ray Burdett, Craig A. Wassinger, and Shirley G. Fitzgerald. "Isokinetic Performance After Total Hip Replacement." American Journal of Physical Medicine & Rehabilitation 83, no. 1 (2004): 1–9. http://dx.doi.org/10.1097/01.phm.0000098047.26314.93.

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17

Tang, Waiching, Ali M. Onaizi, Sagheer A. Onaizi, Umer Sajjad, and Yanju Liu. "Integrated Use of Furnace Bottom Ash as Fine Aggregate and Cement Replacement for Sustainable Mortar Production." Materials 17, no. 15 (2024): 3834. http://dx.doi.org/10.3390/ma17153834.

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Recycling fly ash (FA) and furnace bottom ash (FBA) help with reducing greenhouse gas emissions, conserving natural resources, and minimizing waste accumulation. However, research on recycling FBA is progressing more slowly compared to FA. This research aims to investigate the combined use of FBA as a replacement for both fine aggregate and cement and its influence on the performance of mortar. The findings indicated that incorporating 25% FBA as a fine aggregate replacement and 10% or 20% ground FBA (GFBA) as a cement replacement significantly enhanced compressive strength after 28 and 56 day

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18

Overton, Michael W., and Steve Eicker. "Too many? Not enough? Costs and opportunities associated with dairy replacement heifer inventory." American Association of Bovine Practitioners Conference Proceedings, no. 55 (July 17, 2023): 31–34. http://dx.doi.org/10.21423/aabppro20228595.

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Replacement rate (RR), also commonly called cull rate or herd turnover, is the proportion of the adult herd that enters the herd every year, and in a steady-state herd, the number of animals exiting equals the number of animals that enter; thus, the RR is determined by replacement availability. Failing to produce an adequate number of replacements will lower replacement cost but negatively impact profitability by delaying the replacement of inferior producers. The appropriate number of heifers to produce varies by herd but is dependent upon the herd’s anticipated replacement needs plus any bu

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Ferreira, Cláudia, Ana Silva, Jorge de Brito, Ilídio S. Dias, and Inês Flores-Colen. "Maintenance Modelling of Ceramic Claddings in Pitched Roofs Based on the Evaluation of Their In Situ Degradation Condition." Infrastructures 5, no. 9 (2020): 77. http://dx.doi.org/10.3390/infrastructures5090077.

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Existing maintenance policies have several limitations, mainly due to the lack of knowledge regarding the durability and performance of buildings. Usually, the maintenance policies are insufficiently accurate, neglecting the risk of failure over time and the global costs associated with repairs. In this study, a condition-based maintenance model, based on Petri nets, is proposed to evaluate the impact of three maintenance strategies of ceramic claddings in pitched roofs (CCPR): MS1—only total replacement; MS2—composed of total replacement and minor intervention and MS3—composed of total replac

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20

Mohammed, Shatha D., Hadeel K. Awad, and Rawaa K. Aboud. "Compressive Strength Performance of Reactive Powder Concrete Using Different Types of Materials as a Partial Replacement of Fine Aggregate." Key Engineering Materials 857 (August 2020): 39–47. http://dx.doi.org/10.4028/www.scientific.net/kem.857.39.

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Reactive Powder Concrete (RPC) can be incorporate as a one of the most important and progressive concrete technology. It is a special type of ultra-high strength concrete (UHSC) that’s exclude the coarse aggregate from its constitutive materials. In this research an experimental study had been carried out to investigate the effect of using three types of materials (porcelain aggregate) and others sustainable materials (glass waste and granular activated carbon) as a partial replacement of fine aggregate. Four percentages had considered (0, 10, 15 and 20) % to achieve better understanding for t

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Wells, Maxwell J., Robert K. Osgood, and Michael Venturino. "Using Target Replacement Performance to Measure Spatial Awareness in a Helmet-Mounted Simulator." Proceedings of the Human Factors Society Annual Meeting 32, no. 19 (1988): 1429–33. http://dx.doi.org/10.1177/154193128803201926.

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Measurements were made of the ability of 20 subjects to acquire 3, 6 or 9 stationary visual targets and then replace them after they had been removed. The targets were viewed with various sized fields-of-view (FOVs) using a Visually Coupled Airborne Systems Simulator (VCASS), which was mounted on the head and which used head position information to provide space-stabilized computer-generated images. Targets were presented with a blank background or a terrain background. Subjects were instructed to use as much time as they required or to be as quick as possible searching for the targets. Mean t

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Su, Yi Sheng, Er Cong Meng, Zong Ping Chen, and Jun Yu Wu. "Influence of Replacement Rate on Triaxial Mechanical Performance of Recycled Concrete." Applied Mechanics and Materials 584-586 (July 2014): 1531–35. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1531.

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Replacement rate is an important factor that affects the mechanical properties of recycled concrete. In order to study the influence of replacement rate on triaxial mechanical performance of recycled concrete, 20 recycled concrete cylinder specimens for conventional triaxial loading test with recycled aggregate replacement rate as changing parameters were designed. The results show that replacement rate has a great influence on peak stress of recycled concrete specimens under uniaxial stress, but the effects of replacement rate gradually decreased with the increase of lateral confining pressur

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Babu, Repati Mohan, G. V. V. Satyanarayana, and Vivek Kumar C. "Structural behaviour of triple blended high-performance concrete." E3S Web of Conferences 391 (2023): 01193. http://dx.doi.org/10.1051/e3sconf/202339101193.

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After water, concrete was the material for construction that is used on the largest scale on the planet, and as an outcome of technological development, concrete's qualities have evolved over time. A study was carried out to investigate the potential use of mineral admixture as a partial replacement in high performance concrete. Since they can significantly improve concrete strength and durability properties when compared to regular Portland cement supplemental cementations materials (SCM) like Alccofine (AF) and ground granulated blast furnace slag (GGBFS) have all been used as cement replace

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Liu, Yuanwen, Jie Deng, Yigang Jia, Guangyu Wu, Naiwen Ke, and Xianglan Wei. "A Study on the Bearing Performance of an RC Axial Compression Shear Wall Strengthened by a Replacement Method Using Local Reinforcement with an Unsupported Roof." Buildings 14, no. 9 (2024): 2926. http://dx.doi.org/10.3390/buildings14092926.

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When compared with conventional replacement reinforcement methods, the method of replacement using a local reinforcement with an unsupported roof has the advantages of shortening the reinforcement cycle and reducing material loss, and many scholars have carried out useful explorations thereof. At present, the formula for the bearing capacity of reinforcement by replacing concrete in the Code does not consider the effect of stress hysteresis on the parts of the reinforcement; so when the initial stress level is greater than 0.4, the Code’s strength utilization coefficient of 0.8 for the new con

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Jani, Shilest, Gary Williams, Silvio P. Marchese-Ragona, and Briggs Christie. "Using the Atomic Force Microscope to Measure Roughness Characteristics of Acetabular Prosthetic Shells Used as Hip Socket Replacements." Microscopy Today 3, no. 3 (1995): 14–18. http://dx.doi.org/10.1017/s1551929500063215.

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Total replacement of a diseased or traumatized hip joint is fast becoming one of the most common surgical procedures. The acetabular prosthetic shell is gaining widespread acceptance as a socket replacement for this procedure. Bio-materials research is providing a wealth of information regarding the life span, wear characteristics, and performance of these replacements, with a major clinical finding being the destruction of bone (osteolysis) at interfaces with the implants. Osteolysis is widely thought to be associated with the particulate wear debris released from articulation of the ball and

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Huo, Yi, Yongtao Lyu, Sergei Bosiakov, and Feng Han. "A Critical Review of the Design, Manufacture, and Evaluation of Bone Joint Replacements for Bone Repair." Materials 15, no. 1 (2021): 153. http://dx.doi.org/10.3390/ma15010153.

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With the change of people’s living habits, bone trauma has become a common clinical disease. A large number of bone joint replacements is performed every year around the world. Bone joint replacement is a major approach for restoring the functionalities of human joints caused by bone traumas or some chronic bone diseases. However, the current bone joint replacement products still cannot meet the increasing demands and there is still room to increase the performance of the current products. The structural design of the implant is crucial because the performance of the implant relies heavily on

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Cheuvront, Samuel N., Scott J. Montain, and Michael N. Sawka. "Fluid Replacement and Performance During the Marathon." Sports Medicine 37, no. 4 (2007): 353–57. http://dx.doi.org/10.2165/00007256-200737040-00020.

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Kadam, Siddhi R. "Performance Improvement of Existing Cache Replacement Policies." International Journal for Research in Applied Science and Engineering Technology 8, no. 8 (2020): 784–91. http://dx.doi.org/10.22214/ijraset.2020.31031.

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Tanoue, Y., T. Maeda, S. Oda, et al. "Left ventricular performance in aortic valve replacement." Interactive CardioVascular and Thoracic Surgery 9, no. 2 (2009): 255–59. http://dx.doi.org/10.1510/icvts.2009.202309.

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Pieper, Jan, Stephan Nüesch, and Egon Franck. "How Performance Expectations Affect Managerial Replacement Decisions." Schmalenbach Business Review 66, no. 1 (2014): 5–23. http://dx.doi.org/10.1007/bf03396867.

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Jiang, Chen Long, Xiao Rong Li, Zhen Dong Qian, Wen Jie Lv, Ping Zhang, and Kai Feng. "Performance of Lightweight Epoxy Asphalt Mixture." Advanced Materials Research 168-170 (December 2010): 1815–20. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.1815.

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The sandstone in pavement engineering is mostly obtained by mining mountain or river way, which has brought beyond-retrieve destruction for natural environment, such as mountain bareness and ecological damage. So lightweight epoxy asphalt mixture(LEAM) incorporating different replacement percentage of granulated lightweight aggregate(GLWA) and circular lightweight aggregate(CLWA) by weight were researched. Then performances of strength, rutting resistance, moisture susceptibility of epoxy asphalt mixture incorporating GLWA and CLWA and the economical efficiency were evaluated, and results pres

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Ball, J. Chris, Matt Miltenberger, and Brian Pailes. "Distributed Galvanic Anode Performance on Bridges in the U.S." Materials Performance 63, no. 3 (2024): 28–33. https://doi.org/10.5006/mp2024_63_3-28.

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Over time, concrete bridges exposed to de-icing chemicals and marine environments may develop reinforcing steel corrosion. If unchecked, chloride-induced corrosion leads to increased maintenance needs and structural problems. Severe corrosion often necessitates costly structure replacements, causing public access disruption. Yet, with proper repair strategies and corrosion management, structures can be rehabilitated, strengthened, and their service life extended more sustainably than replacement. Distributed galvanic anodes, applied to corroding abutments, columns, and beams, offer effective,

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Crowninshield, R. D., M. P. Laurent, J. Q. Yao, et al. "Cross-Linking to Improve Thr Wear Performance." HIP International 12, no. 2 (2002): 103–7. http://dx.doi.org/10.1177/112070000201200211.

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Polyethylene wear and associated osteolysis can limit the longevity of total hip replacement. In recent years, many improvements have been made in the consolidation, manufacture, and sterilization of polyethylene acetabular components. These improvements provided reduced polyethylene wear and prolonged usefulness of total hip replacement. Recent advances in extensively cross-linking polyethylene offer the possibility to substantially further reduce wear in total hip replacement. Hip simulator wear testing demonstrates an order of magnitude reduction in wear resulting from cross-linking GUR 105

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Ruthik, B., and D. Praseeda. "Mechanical and durability performance of bentonite clay blended cement composites - A Review." Journal of Physics: Conference Series 2779, no. 1 (2024): 012081. http://dx.doi.org/10.1088/1742-6596/2779/1/012081.

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Abstract Cement plays a crucial role as a binder in concrete production. With the evolving population, there is tremendous development happening all over the world in terms of infrastructure which is mostly of concrete. With this development, there is also a greater dependency on the cement. As known cement production contributes to the emission of greenhouse gases which cause harm to the environment. To overcome this problem to some extent, supplementary cementitious materials play a greater role. Materials that are mostly used as partial replacements for cement are the by-products of various

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Jose, Jobin, Shameedha Begum, and Ramasubrmanian N. "Effectiveness Evaluation of Replacement Policies for On-Chip Caches in Multiprocessors." International Journal of Embedded and Real-Time Communication Systems 13, no. 1 (2022): 1–12. http://dx.doi.org/10.4018/ijertcs.289202.

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A Cache plays a vital role in improving performance in the multicore environment, especially the Last Level Cache (LLC). The improvements in performance are based on the block size, associativity, and replacement policies. Most of the papers concentrate on traditional Least Recently Used (LRU) based replacement policies for their replacement decisions. Unfortunately, the replacement decisions do not enhance performance of the cache as expected. An enhanced modified Pseudo LRU policy is proposed, which is an approximation of LRU. The proposed methodology uses counters to enhance the confidence

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Padhy, Avinash Kumar, and N. Manoj Kumar. "Triple Blending Effect of Fly Ash, Silica Fume and Steel Fibers on Performance of High Strength Concrete." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 2299–304. http://dx.doi.org/10.22214/ijraset.2022.42774.

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Abstract: Compressive strength is an integral property of concrete that play a key role in the construction industry. The present works investigates the effect of triple blend of fly ash, silica fume and steel fibers on the compressive, split tensile and flexural strength of concrete. Fly ash (FA) and silica fume (SF) are introduced as a partial replacement for cement for various additions of steel fibers by volume of concrete. A replacement level of 0% FA with 0 %, 5%, 10%, 15% SF in place of cement for 0% addition of steel fibers by volume of concrete is used for the preparation of first set

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I W., TAMI,, I. M. MASTIKA, and I. M. NURIYASA. "PENGGANTIAN TEPUNG IKAN DENGAN TEPUNG KEONG MAS PADA LEVEL BERBEDA DALAM RANSUM TERHADAP PERFORMANS DAN KARKAS ENTOK." Majalah Ilmiah Peternakan 20, no. 3 (2017): 94. http://dx.doi.org/10.24843/mip.2017.v20.i03.p02.

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An experiment was conducted on the replacement of fish meal with golden snails meal at different level onperformance and carcass of muscovy ducks. A randomized complete block design (RCBD), with five treatmentsand four replications was used in this study so in other words there were 20 experiments unit conducted. Muscovyducks were given diet using 15% fish meal as a control diet (R0), the replacement of 25% fish meal with golden snailsmeal (R1), the replacement of 50% fish meal with golden snails meal (R2), replacement 75% fish meal with goldensnails meal (R3) and 100% replacement of fish meal

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Deere, Kevin C., Michael R. Whitehouse, Martyn Porter, Ashley W. Blom, and Adrian Sayers. "Assessing the non-inferiority of prosthesis constructs used in total and unicondylar knee replacements using data from the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man: a benchmarking study." BMJ Open 9, no. 4 (2019): e026736. http://dx.doi.org/10.1136/bmjopen-2018-026736.

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ObjectivesTo investigate the relative performance of knee replacement constructs compared with the best performing construct and illustrate the substantial variability in performance.DesignA non-inferiority study.SettingEngland and Wales.ParticipantsAll primary total and unicondylar knee replacements performed and registered in the National Joint Registry between 1 April 2003 and 31 December 2016.Main outcome measuresKaplan-Meier failure function for knee replacement constructs. Failure difference between best performing construct (the benchmark) and other constructs.MethodsUsing a non-inferio

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Abbood, Ahlam A. "Performance of Self-Compacting Concrete Slab with Grinded Local Rocks." Journal of Engineering 24, no. 10 (2018): 88. http://dx.doi.org/10.31026/j.eng.2018.10.07.

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The effect of using grinded rocks of (quartzite and porcelanite) as powder of (10 and 20) % replacement by weight of cement for self-compacting concrete slabs was investigated in this study. Five slabs with 15 concrete cubes were tested experimentally at 28 days to study the compressive strength, ultimate load, ultimate deflection, ductility, crack load and steel strain. The test results show that, the compressive strength improvement when replacement of local rock powder reached to (7.3, 4.22) % for (10 and 20) % quartzite powder and (11.3, 16.1) % for (10 and 20) % porcelanite powder, respec

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Hammod, Ali, Nihad Ali, Ali Alkassar, and Yasser Jameel. "The Effect of Partial Replacement of Maize by Date Pits on Broiler Performance." Journal of Pure and Applied Microbiology 12, no. 2 (2018): 807–13. http://dx.doi.org/10.22207/jpam.12.2.42.

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Edwin, Romy S., Fatma Balany, Tryantini Sundi Putri, and Irmawatty P. Tamburaka. "The Use of Granulated Copper Slag as Cement Replacement in High-Performance Concrete." International Journal of Materials Science and Engineering 7, no. 1 (2019): 20–25. http://dx.doi.org/10.17706/ijmse.2019.7.1.20-25.

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Huang, Qi, and Fei Chen. "Design and Performance of Ultrathin Overlay Epoxy-Rubber Concrete." Advances in Materials Science and Engineering 2021 (September 23, 2021): 1–9. http://dx.doi.org/10.1155/2021/9231893.

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Epoxy-rubber concrete has a big potential to be used for pavement overlays, but there is currently no appropriate epoxy-rubber concrete design method and process. To explore the reasonable mix design process of epoxy-rubber concrete, the ultrathin overlay aggregate gradation and epoxy resin binder with high toughness and durability were selected to carry out the design process investigation of epoxy-rubber concrete. The performance of epoxy-rubber concrete was characterized by vibration compaction, repeated load CBR, porosity, Fort Kentucky, uniaxial compression, bending, rutting, antiskid per

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Wang, Yinyin, Yuwang Yang, and Qingguang Wang. "An efficient Intelligent Cache Replacement Policy Suitable for PACS." International Journal of Machine Learning and Computing 11, no. 3 (2021): 250–55. http://dx.doi.org/10.18178/ijmlc.2021.11.3.1043.

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An efficient intelligent cache replacement policy suitable for picture archiving and communication systems (PACS) was proposed in this work. By combining the Support vector machine (SVM) with the classic least recently used (LRU) cache replacement policy, we have created a new intelligent cache replacement policy called SVM-LRU. The SVM-LRU policy is unlike conventional cache replacement policies, which are solely dependent on the intrinsic properties of the cached items. Our PACS-oriented SVM-LRU algorithm identifies the variables that affect file access probabilities by mining medical data.

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Mokhtar, Norfaniza, and Nurul Atikah Jalani. "A Review on the Performance of Waste Glass as Partial Replacement of Fine Aggregate." IOP Conference Series: Materials Science and Engineering 1200, no. 1 (2021): 012011. http://dx.doi.org/10.1088/1757-899x/1200/1/012011.

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Abstract Waste glass is one of the biggest contributors in waste production in Malaysia which can be used as partial sand replacement in concrete. Silica exists in waste glass components made it becomes a pozzolanic material and suitable to be used in a concrete mixture. The performance of the waste glass as fine aggregate was reviewed by considering the workability of fresh concrete, the strength, and the splitting tensile of hardened concrete. The range of the replacement waste are 0%, 10%, 20% and 30%. The influence of the waste glass on the microstructure of the concrete also have been eva

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Sirola, Joonas, and Toni Rikkonen. "Muscle performance after the menopause." British Menopause Society Journal 11, no. 2 (2005): 45–50. http://dx.doi.org/10.1258/136218005775544561.

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The timing of the menopause transition has remained fairly constant throughout history. It represents a milestone in female health and, after passing through it, women experience increased musculoskeletal and cardiovascular morbidity. Muscle performance is an important determinant of functional capacity and quality of life among the elderly and is also involved in the maintenance of balance. Therefore, good muscle strength can prevent fragility fractures and lessen the burden of osteoporosis. Muscle strength begins to decline during the perimenopausal years and this phenomenon seems to be part

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Halim, Nuradila Izzaty, Aidan Newman, Muhd Norhasri Muhd Sidek, Hamidah Mohd Saman, and Nurul Huda Suliman. "Effect of Utilisation of Nano POFA on Performance of Self-Consolidating High-Performance Concrete (SCHPC)." Scientific Research Journal 18, no. 2 (2021): 103–17. http://dx.doi.org/10.24191/srj.v18i2.11396.

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Malaysia's palm oil industry plays a significant role in the country's economy. However, a large amount of palm oil fuel ash (POFA), a by-product of this industry, may negatively affect the environment and human health. Hence, this study hypothesized that POFA might be re-used in the form of replacement in concrete to lessen the risk to the environment or human health. Self-consolidating high-performance concrete (SCHPC) has been innovating progressively over the years. In this paper, SCHPC is innovated by utilising nano POFA (NaPOFA) to improve its performance. The POFA performance greatly im

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Chen, Wei, Song Dong, Yuehan Liu, Yue Liang, and Frederic Skoczylas. "Effect of Waste Glass as Fine Aggregate on Properties of Mortar." Materials 15, no. 23 (2022): 8499. http://dx.doi.org/10.3390/ma15238499.

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Currently, most cities landfill most waste glass, resulting in the waste of resources and environmental pollution. Therefore, to realize the recycling of waste glass, solid waste glass was recycled and broken. Waste glass sand was prepared according to the gradation of natural river sand particles and the fineness modulus screening. It was used as an alternative material to natural river sand and mixed with mortar materials with different replacements. Analysis of the mortar with different replacements (0%, 20%, 40%, 60%, 80%) was conducted by combining macro and micro tests on the change law

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Bradley, David H., and John D. Stephens. "Employment Performance in OECD Countries." Comparative Political Studies 40, no. 12 (2007): 1486–510. http://dx.doi.org/10.1177/0010414006292609.

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This article provides the first comprehensive test of the frequent, sharply differing market liberal and insitutionalist political economy recommendations for employment creation. The statistical analysis is a pooled time series for 17 advanced capitalist democracies from 1974 through 1999. Consistent with both neoliberal and institutionalist hypotheses, long-term unemployment replacement rates, social security taxes, and employment protection laws have negative effects on employment levels. Contrary to neoliberal hypotheses but consistent with institutionalist hypotheses, the authors find tha

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Popovic, Z., I. Barac, M. Jovic, et al. "Chordal Preservation Improves Postoperative Ventricular Performance following Valve Replacement for Chronic Mitral Regurgitation." Cardiovascular Surgery 4, no. 5 (1996): 628–34. http://dx.doi.org/10.1177/096721099600400511.

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Worsening of left ventricular performance had been recognized after mitral valve replacement for mitral regurgitation. The effects of chordal preservation on ventricular performance after mitral valve replacement have been assessed. Twelve patients with mitral regurgitation were allocated to group A (undergoing mitral valve replacement with chordal preservation), or to group B (undergoing mitral valve replacement with chordal excision). Transoesophageal echocardiography was recorded simultaneously with radial artery and pulmonary capillary wedge pressures. Load was varied by withdrawal of bloo

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Srinivasan, K., J. Premalatha, and S. Srigeethaa. "A Performance Study on Partial Replacement of Polymer Industries Waste (PIW) as Fine Aggregate in Concrete." Archives of Civil Engineering 64, no. 3 (2018): 45–56. http://dx.doi.org/10.2478/ace-2018-0028.

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AbstractRecycling of plastic wastes helps in reducing waste disposal problems and helps for the sustainable development of the country. Concrete with various % (0 to 55%) of waste plastic aggregates were tested for their mechanical strength properties. In the present work, plastic aggregates obtained as end product of a polymer recycle industry in the form of grains called as plastic aggregates are used as fine aggregate replacements in concrete. The addition of plastic aggregate as fine aggregate replacements results in increase in compressive strength, split tensile strength and flexural str

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