Properties of Portland cement concrete cast with magnetized water: a review

2021 ◽  
Vol 12 (2) ◽  
pp. 58
Author(s):  
Mariam Farouk Ghazy ◽  
Metwally Abd Allah Abd Elaty ◽  
Omar Hussein Khalifa
Keyword(s):  
High Performance ◽  
Low Cost ◽  
New Technology ◽  
Cementitious Materials ◽  
Magnetization Process ◽  
Portland Cement Concrete ◽  
Chemical Additives ◽  
Concrete Technology ◽  
Negative Environmental Impact ◽  
The Cost

The water utilized in concrete manufacture plays an important role within the concrete mix, beginning from controlling the process of hydration of cement, besides appropriate curing to achieve the required strength, not to mention controlling the workability and durability of the concrete structure. The utmost significant challenge for concrete technology is to improve the properties of concrete. Nowadays, the engineering field needs to produce structures in harmony with the concept of sustainable development through the utilization of high-performance materials with an eco-friendly impact that is produced at a low-cost. The magnetic water (MW) provides one of the utmost towards this objective. The cost of magnetizing water is low because of the simple instruments used and the cost can be adapted to the scale of the work. In the last two decades, a new technology, so-called MW technology, has been extended to use in concrete manufacturing. Therefore, currently, the researchers are interested in the use of MW in the manufacture of cementitious materials helping to rationalize the cement usage and reducing reliance on chemical additives that have a negative environmental impact. Consequently, this paper presents the effect of the magnetization process in the structure of water molecules, the main properties of water. Additionally, the effect of using MW on the fresh and mechanical properties, as well as the durability characteristics and performance of cementitious materials have been reviewed. Moreover, the factors that affect the magnetization process of water, which highlighted discuss in this study. The results revealed that using MW significantly enhances the flowability and the characteristic strengths of cementitious materials as well as the durability properties.

Constructing a Bioinformatics Platform with Web and Mobile Services Based on NVIDIA Jetson TK1

2015 ◽  
Vol 7 (4) ◽  
pp. 57-73 ◽  
Author(s):  
Chun-Yuan Lin ◽  
Jin Ye ◽  
Che-Lun Hung ◽  
Chung-Hung Wang ◽  
Min Su ◽  
...  
Keyword(s):  
Power Consumption ◽  
High Performance Computing ◽  
Graphics Processing Units ◽  
High Performance ◽  
Low Cost ◽  
Research Direction ◽  
Mobile Services ◽  
Performance Ratio ◽  
The Cost ◽  
Performance Computing

Current high-end graphics processing units (abbreviate to GPUs), such as NVIDIA Tesla, Fermi, Kepler series cards which contain up to thousand cores per-chip, are widely used in the high performance computing fields. These GPU cards (called desktop GPUs) should be installed in personal computers/servers with desktop CPUs; moreover, the cost and power consumption of constructing a high performance computing platform with these desktop CPUs and GPUs are high. NVIDIA releases Tegra K1, called Jetson TK1, which contains 4 ARM Cortex-A15 CPUs and 192 CUDA cores (Kepler GPU) and is an embedded board with low cost, low power consumption and high applicability advantages for embedded applications. NVIDIA Jetson TK1 becomes a new research direction. Hence, in this paper, a bioinformatics platform was constructed based on NVIDIA Jetson TK1. ClustalWtk and MCCtk tools for sequence alignment and compound comparison were designed on this platform, respectively. Moreover, the web and mobile services for these two tools with user friendly interfaces also were provided. The experimental results showed that the cost-performance ratio by NVIDIA Jetson TK1 is higher than that by Intel XEON E5-2650 CPU and NVIDIA Tesla K20m GPU card.

Concurrent Tolerance Design Based on Manufacturing Cost and Quality Loss

2014 ◽  
Vol 687-691 ◽  
pp. 4996-4999
Author(s):  
Zhang Rong
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Engineering Application ◽  
Manufacturing Cost ◽  
Tolerance Design ◽  
Quality Loss ◽  
Product Loss ◽  
Parameterized Model ◽  
The Cost ◽  
Design And Manufacture

With the constraints on manufacturing capacity, the satisfaction of product performance and the cost of manufacture are contradictory, the problem between high-performance and low-cost must be solved at the period of design and manufacture for product. To solve this problem, the product loss model has been analyzed, the parameterized and non-parameterized model of anticipant losses has been researched, with concurrent design, in connection with the product with multiple correlated assembly functional dimensions, the relation function between quality loss and process dimension tolerance has been provided, the concurrent tolerance design mathematical model based on lowest-cost and quality loss has been established. The applied case shows that this method has important guiding significance for engineering application.

Influence of Hydration Temperature on Durability and Mechanical Property Performance of Prestressed and Precast High-Performance Concrete Beams

2000 ◽  
Vol 1696 (1) ◽  
pp. 131-142 ◽  
Author(s):  
John J. Myers ◽  
Ramon L. Carrasquillo
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Cementitious Materials ◽  
Concrete Technology ◽  
The North ◽  
Texas Department ◽  
Concrete Temperature ◽  
Temperature Development ◽  
The Impact ◽  
Property Performance

Concrete technology has continued to advance throughout the years to meet the demands of designers and innovative structural systems. With the advent of high-performance concrete (HPC), which contains large amounts of cementitious materials, the investigation of the impact of concrete temperature development during hydration on concrete performance is of keen interest. Match-curing technology was used to investigate the influence of concrete temperature development during hydration on the mechanical and material property performance of prestressed and precast HPC beams. These members were fabricated for use in two recently constructed HPC bridges in Texas. The investigation was conducted in conjunction with the design, instrumentation, and construction of the Louetta Road Overpass in Houston, Texas, and the North Concho River US-87 and South Orient Railroad Overpass in San Angelo, Texas. FHWA and the Texas Department of Transportation cosponsored these projects as part of the Strategic Highway Research Program to stimulate the use of HPC and to demonstrate the suitability of HPC in highway structures. The results of the study indicated that for HPCs that contain large amounts of cementitious materials, the concrete temperature during hydration can have a dramatic impact on both the mechanical and the material (durability) performance of the concrete. Temperature recommendations are provided to avoid less than optimal concrete performance on the basis of the member shapes and mix designs investigated in the study.

Approaches to the Design and Processing of Novel Titanium Alloys

2007 ◽  
Vol 29-30 ◽  
pp. 127-130
Author(s):  
Colleen J. Bettles ◽  
Rimma Lapovok ◽  
H.P. Ng ◽  
Dacian Tomus ◽  
Barry C. Muddle
Keyword(s):  
Titanium Alloys ◽  
High Performance ◽  
Powder Processing ◽  
Low Cost ◽  
Cost Effective ◽  
Processing Technologies ◽  
Shape Processing ◽  
New Processing ◽  
The Cost ◽  
Processing Techniques

The range of commercial titanium alloys available is currently extremely restricted, with one alloy (Ti-6Al-4V), and derivatives of it, accounting for a very large proportion of all applications. High performance alloys are costly to fabricate and limited to low-volume applications that can sustain the cost. With the emergence of new processing technologies that promise to reduce significantly the cost of production of titanium metal, especially in powder form, there is an emerging imperative for cost-effective near net shape powder processing techniques to permit the benefit of reduced metal cost to be passed on to higher-volume applications. Equally, there is a need for the design and development of new alloys that are intrinsically low-cost and lend themselves to fabrication by novel cost-effective net shape processing. The approaches that might be used to select, design and process both conventional alloys and novel alloy systems will be reviewed, with a focus on innovation in design of low-cost alloys amenable to new processing paths and increasingly tolerant of variability in composition.

Lapping Parabolic Parts Using the Bending Lapping Tool

2014 ◽  
Vol 900 ◽  
pp. 592-595
Author(s):  
Chun Min Shang ◽  
Dong Mei Zhang ◽  
Jian Dong Yang
Keyword(s):  
High Precision ◽  
Low Cost ◽  
New Technology ◽  
Experimental Result ◽  
Work Piece ◽  
Face Shape ◽  
Minimal Error ◽  
Shape Precision ◽  
The Cost ◽  
Easy Operation

Lapping the parabolic work-piece with the lapping tool in bending method is a new technology, which has some good characters such as low cost, scope broad, easy operation, and high precision. The lapping tool is formed by the means of bending and forming with solid abrasives on it in the experiment. The experiment shows that parabolic workpiece can be lapped using this method. The experimental result indicates that the work-piece face shape precision is high with the lapping tool, the maximal error is 0.0881mm and the minimal error is-0.0011mm, and lapping efficiency is high and the cost is low.

High Performance Hyperspectral Imager for Microimaging

2001 ◽  
Vol 7 (S2) ◽  
pp. 14-15
Author(s):  
Henryk Malak ◽  
Petr Herman ◽  
Wayne Moore ◽  
Jaroslav Vecer
Keyword(s):  
Spectral Range ◽  
High Throughput Screening ◽  
High Performance ◽  
Imaging System ◽  
Low Cost ◽  
New Technology ◽  
Ccd Camera ◽  
Imaging Spectrometer ◽  
Parallel Acquisition ◽  
Spectral Imager

A high performance hyperspectral imager with high light throughput suitable for microscopy and analytical imaging was built and tested. The imager utilizes phenomenon of optical activity. The new technique provides a continuous spectral range of several hundreds of nanometers starting in deep UV. Similar spectral range starting in the near IR is also achievable.A performance of a low cost implementation of the new technology is presented. The imager has a form of a microscope adaptor, which is inserted between the microscope and a low-cost 8-bit CCD camera. The resulting instrument is simple, robust, and highly compact. The imager module is placed in-line to the microscope imaging system and does not introduce observable image aberrations. Advantageously, the imager is transparent to conventional imaging operations, thus with the imager in-place there is no need for reconfiguration of the microscope to switch between conventional and hyperspectral video/digital imaging modes.The presented spectral imager answers the need for a practical, sensitive, compact, and affordable imaging spectrometer. The instrument is well suited for a broad range of applications requiring rapid parallel acquisition of highly resolved concurrent spatial and spectral information such as high throughput screening, biochip analysis, remote sensing or nondestructive semiconductor testing.

Application of Polymer Plaster Composites in Additive Manufacturing of High-Strength Components

2015 ◽  
Vol 825-826 ◽  
pp. 763-770 ◽  
Author(s):  
Stefan Junk ◽  
Rebecca Matt
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Low Cost ◽  
New Technology ◽  
High Strength ◽  
Testing Specimen ◽  
Whole Process ◽  
Infiltration Technique ◽  
Cost Of Materials ◽  
The Cost

Today, 3D-printing with polymer plaster composites is a common method in Additive Manufacturing. This technique has proven to be especially suitable for the production of presentation models, due to the low cost of materials and the possibility to produce color-models. But nowadays it requires refinishing through the manual application of a layer of resin. However, the strength of these printed components is very limited, as the applied resin only penetrates a thin edge layer on the surface. This paper develops a new infiltration technique that allows for a significant increase in the strength of the 3D-printed component. For this process, the components are first dehydrated in a controlled two-tier procedure, before they are then penetrated with high-strength resin. The infiltrate used in this process differs significantly from materials traditionally used for infiltration. The result is an almost complete penetration of the components with high-strength infiltrate. As the whole process is computer-integrated, the results are also easier to reproduce, compared to manual infiltration. On the basis of extensive material testing with different testing specimen and testing methods, it can be demonstrated that a significant increase in strength and hardness can be achieved. Finally, this paper also considers the cost and energy consumption of this new infiltration method. As a result of this new technology, the scope of applicability of 3D-printing can be extended to cases that require significantly more strength, like the production of tools for the shaping of metals or used for the molding of plastics. Furthermore, both the process itself and the parameters used are monitored and can be optimized to individual requirements and different fields of application.

scholarly journals Implementation of Quantum Gates using MATLAB

2020 ◽  
Vol 8 (5) ◽  
pp. 3693-3699
Keyword(s):  
Quantum Logic ◽  
High Performance ◽  
Low Cost ◽  
Logic Gates ◽  
Activation Function ◽  
Quantum Gates ◽  
Quantum Logic Gates ◽  
Different Types ◽  
The Cost ◽  
Effective Result

Now days we require low cost and high performance computational based applications. Quantum inspired computational device or circuit performs effective result compare to classical based devices. In the development of quantum-based devices and network needs number of quantum logic gates. Here we studied mathematical description of different types of single and multiple qubits-based quantum logic gates, the reversibility property of quantum gates also proved mathematically. We analyze the cost and effectiveness of each quantum gates has been implemented using neural network with the help of MATLAB. The cost and effectiveness of quantum gates has been analyzed with the comparison of different types of activation function.

scholarly journals Numerical Analysis and Fabrication of Battery Holder for Two Wheelers

2020 ◽  
Vol 78 (2) ◽  
pp. 114-131
Author(s):  
K. N Chethan ◽  
V Sabarinathan ◽  
R Vivek Ram ◽  
G. T Mahesh
Keyword(s):  
Injection Moulding ◽  
High Performance ◽  
Low Cost ◽  
Flow Analysis ◽  
Nylon 6 ◽  
Nylon 66 ◽  
Weather Resistance ◽  
The Cost ◽  
Two Wheeler ◽  
The Impact

The high-performance plastics usage is increasing in the automobile field because of its advantages over other metals and alloys. Corrosion resistance, light weight, low cost, flexibility in design are the major advantages of plastics above the conventional metallic materials. In this paper a metal version component converted into plastic version in order to increase efficiency, reduce the overall cost of a two-wheeler and to improve the production rate of component. Different types of material such as PP + 15% TALC, PP + 30% GF, PP + 30% TALC, Nylon 6 + 15% GF, Nylon 66 UF, Nylon 6 UF, Nylon 66 + 30% GF, ASA LI941 and ASA LI913 tested for 10,000km road test, vibration test and fitment test. An injection moulding used to produce the component and ‘Mouldx3D’ software was used for mould flow analysis and other simulation. The different parts of injection moulding tool made up of C45, P20 and D2 materials. Among different materials, ASA LI913 was selected since it has better weather resistance than others and the impact strength matched to metal version component. Finally, it was found that the cost of the component made of Plastic considerably less than same component made of metal.

scholarly journals A low-cost, high-performance video-based binocular eye tracker for psychophysical research

2021 ◽  
Vol 14 (3) ◽  
Author(s):  
Daria Ivanchenko ◽  
Katharina Rifai ◽  
Ziad M. Hafed ◽  
Frank Schaeffel
Keyword(s):  
Real Time ◽  
High Performance ◽  
Low Cost ◽  
Eye Tracker ◽  
Linear Calibration ◽  
Commercial System ◽  
Real Time Analysis ◽  
Blink Detection ◽  
Fixation Points ◽  
The Cost

We describe a high-performance, pupil-based binocular eye tracker that approaches the performance of a well-established commercial system, but at a fraction of the cost. The eye tracker is built from standard hardware components, and its software (written in Visual C++) can be easily implemented. Because of its fast and simple linear calibration scheme, the eye tracker performs best in the central 10 degrees of the visual field. The eye tracker possesses a number of useful features: (1) automated calibration simultaneously in both eyes while subjects fixate four fixation points sequentially on a computer screen, (2) automated real-time continuous analysis of measurement noise, (3) automated blink detection, (4) and real-time analysis of pupil centration artifacts. This last feature is critical because it is known that pupil diameter changes can be erroneously registered by pupil-based trackers as a change in eye position. We evaluated the performance of our system against that of a well-established commercial system using simultaneous measurements in 10 participants. We propose our low-cost eye tracker as a promising resource for studies of binocular eye movements.

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