Mixed Composite Frostproof Pumping Agent Winter of Common Concrete Construction Quality Monitoring and Research

2011 ◽  
Vol 99-100 ◽  
pp. 768-772
Author(s):  
Ming Ru Zhou ◽  
Hao Jie Zhang ◽  
Ying He ◽  
Zhao Feng Ding ◽  
Xing Zhou Luo
Keyword(s):  
Theoretical Basis ◽  
Quality Monitoring ◽  
Construction Quality ◽  
Concrete Construction ◽  
Ordinary Concrete ◽  
Maintenance Time ◽  
Reconstruction Project

Combining with a large number of concrete test and the moving reconstruction project of Qingyang petrochemical about three million tons, by adjusting “advance maintenance time”, monitor and research on the construction quality of mixed composite pumping antifreeze ordinary concrete in winter. Then provide reference and theoretical basis for construction of this winter antifreeze mixed composite pumping concrete.

Applying Research on Testing Compressive Strength of High Performance Concrete with Rebound Method

2012 ◽  
Vol 452-453 ◽  
pp. 106-109
Author(s):  
Zheng Jun Wang ◽  
Felix Zhao
Keyword(s):  
Compressive Strength ◽  
Concrete Structure ◽  
High Performance ◽  
High Performance Concrete ◽  
Cement Concrete ◽  
Construction Quality ◽  
Concrete Construction ◽  
Estimation Models

In order to grasp timely and accurately quality of high performance concrete, detection of compressive strength of high performance concrete can be non-destructively, rapidly and accurately tested that is very testing index. The paper did some research on compressive strength of high performance concrete applying redound method that it established several estimation models between rebound value and compressive strength. Experiment shows that rebound method can effetely test compressive strength of high performance concrete. Construction quality of Cement concrete structure can timely grasp applying the method.

scholarly journals Analysis on key technical nodes of prefabricated concrete construction

2021 ◽  
Vol 236 ◽  
pp. 05009
Author(s):  
Liu Yalong
Keyword(s):  
Housing Construction ◽  
Construction Technology ◽  
Engineering Project ◽  
Construction Quality ◽  
Concrete Construction ◽  
Practical Applications ◽  
New Type

Prefabricated concrete (PC) buildings are a relatively new type of housing construction. It is not only necessary to ensure the quality of PC components, but also to guarantee the quality of key technical nodes of construction. Based on specific engineering project cases, this article proposes solutions and methods for the key technical nodes of prefabricated concrete construction, and proves their feasibility and effectiveness through practical applications. It illustrates an optimization of prefabricated concrete construction technology to improve construction quality.

scholarly journals Dynamic Quality Monitoring System to Assess the Quality of Asphalt Concrete Pavement

Buildings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 577
Author(s):  
Ziyuan Ma ◽  
Jingxiao Zhang ◽  
Simon P. Philbin ◽  
Hui Li ◽  
Jie Yang ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Quality Evaluation ◽  
Asphalt Pavement ◽  
Quality Monitoring ◽  
Construction Quality ◽  
Digital Monitoring ◽  
Pavement Construction ◽  
Dynamic Quality ◽  
Asphalt Concrete Pavement

With the rapid development of new technologies, such as big data, the Internet of Things (IoT) and intelligent sensing, the traditional asphalt pavement construction quality evaluation method has been unable to meet the needs of road digital construction. At the same time, the development of such technologies enables a new management system for asphalt pavement construction. In this study, firstly, the dynamic quality monitoring system of asphalt concrete pavement is established by adopting the BeiDou Navigation Satellite System, intelligent sensing, the IoT and 5G technology. This allows key technical indicators to be collected and transmitted for the whole process of asphalt mixture, which includes the mixing plant, transport vehicle, paving and compaction. Secondly, combined with AHP and the entropy weight (EW) method, the index combination weight is calculated. The comprehensive index for the pavement digital construction quality index (PCQ) is proposed to reflect the impact of monitoring indicators on pavement quality. An expert decision-making model is formed by using the improved particle swarm optimization (PSO) algorithm coupled with radial basis function neural network (RBF). Finally, the digital monitoring index and pavement performance index are connected to establish a full-time and multi-dimensional digital construction quality evaluation model. This study is verified by a database created from the digital monitoring data of pavement construction collected from a highway construction project. The system proposed in this study can accurately reflect the quality of pavement digital construction and solve the lag problem existing in the feedback of construction site.

Automatic buffer capacity based sensor for effluent quality monitoring

1996 ◽  
Vol 33 (1) ◽  
pp. 81-87
Author(s):  
L. Van Vooren ◽  
P. Willems ◽  
J. P. Ottoy ◽  
G. C. Vansteenkiste ◽  
W. Verstraete
Keyword(s):  
Wastewater Treatment ◽  
Buffer Capacity ◽  
Wastewater Treatment Plants ◽  
Data Interpretation ◽  
Full Scale ◽  
Quality Monitoring ◽  
Effluent Quality ◽  
Capacity Curves ◽  
On Line

The use of an automatic on-line titration unit for monitoring the effluent quality of wastewater plants is presented. Buffer capacity curves of different effluent types were studied and validation results are presented for both domestic and industrial full-scale wastewater treatment plants. Ammonium and ortho-phosphate monitoring of the effluent were established by using a simple titration device, connected to a data-interpretation unit. The use of this sensor as the activator of an effluent quality proportional sampler is discussed.

Quality Monitoring System for Seismic While Drilling

2013 ◽  
Vol 318 ◽  
pp. 572-575
Author(s):  
Li Li Yu ◽  
Yu Hong Li ◽  
Ai Feng Wang
Keyword(s):  
Data Acquisition ◽  
Monitoring System ◽  
Signal Analysis ◽  
Quality Evaluation ◽  
Quality Monitoring ◽  
Quality Of Data ◽  
Whole Process ◽  
Engineering Parameters ◽  
Network Status

In this paper a quality monitoring system for seismic while drilling (SWD) that integrates the whole process of data acquisition was developed. The acquisition equipment, network status and signals of accelerometer and geophone were monitored real-time. With fast signal analysis and quality evaluation, the acquisition parameters and drilling engineering parameters can be adjusted timely. The application of the system can improve the quality of data acquisition and provide subsequent processing and interpretation with high qualified reliable data.

scholarly journals The roles and mechanisms of hypoxia in liver fibrosis

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Jingyao Cai ◽  
Min Hu ◽  
Zhiyang Chen ◽  
Zeng Ling
Keyword(s):  
Quality Of Life ◽  
Liver Fibrosis ◽  
Theoretical Basis ◽  
Liver Diseases ◽  
Molecular Mechanisms ◽  
Clinical Intervention ◽  
Chronic Liver Injury ◽  
Key Factor

AbstractLiver fibrosis occurs in response to any etiology of chronic liver injury. Lack of appropriate clinical intervention will lead to liver cirrhosis or hepatocellular carcinoma (HCC), seriously affecting the quality of life of patients, but the current clinical treatments of liver fibrosis have not been developed yet. Recent studies have shown that hypoxia is a key factor promoting the progression of liver fibrosis. Hypoxia can cause liver fibrosis. Liver fibrosis can, in turn, profoundly further deepen the degree of hypoxia. Therefore, exploring the role of hypoxia in liver fibrosis will help to further understand the process of liver fibrosis, and provide the theoretical basis for its diagnosis and treatment, which is of great significance to avoid further deterioration of liver diseases and protect the life and health of patients. This review highlights the recent advances in cellular and molecular mechanisms of hypoxia in developments of liver fibrosis.

Service Delivery and Accountability of Urban Officials: Evidence from Urban-based Local Government in Bangladesh

2021 ◽  
pp. 097152312110163
Author(s):  
A. H. M. Kamrul Ahsan ◽  
Peter Walters ◽  
Md. Adil Khan
Keyword(s):  
Qualitative Study ◽  
Service Delivery ◽  
Service Providers ◽  
City Government ◽  
Quality Monitoring ◽  
Government Service ◽  
The Poor ◽  
Similar Class ◽  
Rajshahi City

This study compares the state of city government service delivery for communities living in different areas with different level of affluence in Rajshahi City in Bangladesh. Based on the results of a qualitative study, we found a significant service disparity between the affluent and the poor communities. This disparity is due to the inability of the poor to hold service providers accountable, attributable to a lack of knowledge about services and a lack of social status. Lack of quality monitoring and a marked bias in the quality of interactions between the poor and the affluent contribute to the service disparity This disparity is largely invisible to the poor who, instead of comparing themselves with the affluent citizens, compare themselves with a similar class of people.

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