Loss of Air Content in Pumped Concrete Semantic Scholar Related Information

Suicidal Behavior and Loss of the Future Self in Semantic

Semantic dementia (SD) is a neurodegenerative disorder characterized by a progressive loss of the meaning of words, perceptions, and concepts. SD is caused by disease in the anterior temporal lobes, and is 1 of the frontotemporal lobar degenerations with ubiquitin-positive pathology on autopsy ( Hodges et al, 2010; Kertesz et al, 2010 ).

Loss of Air Content in Pumped Concrete

Oct 01, 1992 · Describes an investigation of the phenomenon of loss of entrained air in pumped concrete. Conclusions and recommendations include: 1) With long vertically downward boom or pipe sections, half the air can be lost; 2) Do some sampling at the pump discharge; 3) If air is lost, …

Active control of properties of concrete: a (p)review

Sep 20, 2018 · While curing, air pressures could be increased, possibly combined with increased temperature and/or increased CO 2-content (see also higher), in view of accelerated hardening of the concrete element . External pressure control can thus trigger changes in air content and pore structure, in view of achieving improved material performance.

Concrete: the most destructive material on Earth | Cities

Feb 25, 2019 · Concrete: the most destructive material on Earth. Limestone quarries and cement factories are often sources of air pollution. Photograph: Zoonar GmbH/Alamy. After water, concrete is …

CIP 21 - Loss of Air Content in Pumped Concrete

generally is no significant loss of air. There is some controversy over how frequently air loss is a problem in pumped concrete. Certainly, it doesn't occur every time, or even most times. However, it does occur of-ten enough to be considered seriously until better solu-tions are developed. There are several mechanisms involved, but air loss will occur if the weight of concrete in a vertical or

Vent Pipe Emissions from Storage Tanks at Gas Stations

Feb 10, 2019 · Unburned fuel can be released from storage tanks into the environment through "working" and "breathing" losses. 16 A working loss occurs when liquid is pumped into or out of a tank. For a storage tank, this can happen when it is refilled from a tanker truck or when fuel is dispensed to refuel vehicles 17 if the pressure in the storage tank exceeds the relief pressure of the pressure

An experimental study of the behavior of 3D printed

Mar 01, 2021 · It is clear that the reduced air content of the pumped concrete caused the increased compressive strength. The pumped concrete samples possess a 7-day flexural strength of 5.05 MPa, which is 0.84 MPa more than that of the casted samples.

Electricity generation and health - The Lancet

Sep 13, 2007 · The provision of electricity has been a great benefit to society, particularly in health terms, but it also carries health costs. Comparison of different forms of commercial power generation by use of the fuel cycle methods developed in European studies shows the health burdens to be greatest for power stations that most pollute outdoor air (those based on lignite, coal, and oil).

Storing Energy UnderwaterCompressed Air Energy Storage has

Dec 01, 2012 · A compressor on the shore fed compressed air through a 25 mm line to an inlet at the top of the balloon. We ran compressed air into the balloon for about three minutes, raising the pressure from 182 kPa to 195 kPa. We then released the air more slowly, though we experienced a pressure loss due to friction and the pipe layout.

Central Concrete Pumping in Fort Worth, TX with Reviews

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Influence of pumping on the resistivity evolution of high

For HSC5-HSC6 mixtures, the electrical resistivity decreased by 2.3–7.8% after pumping. One of the main differences between HSC1-HSC4 mixtures and HSC5-HSC6 mixtures was the air content value. The air content of HSC1-HSC4 ranged from 4.2% to 12.4%, while that of HSC5-HSC6 was much lower, and ranged from 0.31% to 4% (see table 5).

Central Concrete Pumping in Fort Worth, TX with Reviews

Find 1 listings related to Central Concrete Pumping in Fort Worth on YP.com. See reviews, photos, directions, phone numbers and more for Central Concrete Pumping locations in Fort Worth, TX.

Concrete pumping and its effect on the air void system

Jul 05, 2018 · The particular effect of pumping on changes in the concrete air void system has been investigated in the past [5,6,7,8,9,10]. The general belief within the North American concrete industry is that pumping reduces air content by two or three percent . However, numerous studies have shown that the behavior of the air void system is not easily

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PUMPNET: a deep learning approach to pump operation

Jan 07, 2021 · Non-urgent high energy-consuming residential appliances, such as pool pumps, may significantly affect the peak to average ratio (PAR) of energy demand in smart grids. Effective load monitoring is an important step to provide efficient demand response (DR) to PAR. In this paper, we focus on pool pump analytics and present a deep learning framework, PUMPNET, to identify the pool pump …

Traffic-Related Air Pollution and Dementia Incidence in

Mar 01, 2016 · Components of air pollution and cognitive function in middle-aged and older adults in Los Angeles. Neurotoxicology 40:1-7 24148924. Crossref, Medline, Google Scholar; Genc S, Zadeoglulari Z, Fuss SH, Genc K. 2012. The adverse effects of air pollution on the nervous system. J Toxicol 2012:782462; doi: 10.1155/2012/782462 22523490.

Chapter 1 Introduction to Wastewater Management

by turning off the air to the diffusers or the mixers and allowing the solids to separate from the wastewater. During this settling period, the flow is diverted into a second SBR tank for continuous treatment. Advantages of this SBR process include a relatively small footprint and the capability of removing nutrients (both nitrogen and phosphorus).

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The contribution of syntactic–semantic approach to the

Apr 20, 2014 · The present paper tries to show that the current state of the art in syntactics and semantics, in computer systems based on the theory of inventive problem solving known as TRIZ, may help in the task of literature based discovery. With a structured and logic cause linkage between concepts, LBD could be faster and with less expert involvement at the beginning of the LBD process. …

Developing Design Support System Based on Semantic of

Jan 01, 2016 · Peer-review under responsibility of KES International doi: 10.1016/j.procs.2016.08.167 ScienceDirect 20th International Conference on Knowledge Based and Intelligent Information and Engineering Systems, KES2016, 5-7 September 2016, York, United Kingdom Developing Design Support System based on Semantic of Design Model Yoshikazu Tanakaa* and