Setting the problem of designing monitoring systems for engineering structures and methods of its solution

The unprecedented construction of large-span, high-rise and technically complex Olympic facilities in a very short time sets the goal of ensuring the engineering safety of the facilities being built. A necessary condition for its solution is a well-functioning system of continuous monitoring the state of load-bearing structures. It should be capable of identifying unacceptable deviations in the operability of the structure (reducing its reliability) and notifying operating services in a timely manner. The research is devoted to designing such systems. The research subject of the study is a set of requirements for monitoring systems for engineering structures. The feed data for the conducted studies was information about accidents that occurred at constructional projects with various purposes. Analysis of monitoring tools and controlled parameters was used as a research method. The paper investigated some of the existing monitoring systems. The following global monitoring tasks are formulated: what to control; how to control; controlled parameters.

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Comparison of Glucose Concentrations between Flash and Continuous Monitoring Systems in Patients with Diabetes Mellitus

Diabetes ◽

10.2337/db18-917-p ◽

2018 ◽

Vol 67 (Supplement 1) ◽

pp. 917-P

Author(s):

RYO KUMAGAI ◽

AIKO MURAMATSU ◽

MASANAO FUJII ◽

YUKINO KATAKURA ◽

KEIKO FUJIE ◽

...

Keyword(s):

Diabetes Mellitus ◽

Continuous Monitoring ◽

Monitoring Systems ◽

Patients With Diabetes

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Experience of Operation of the Mine Winding Plants Equipped with Continuous Monitoring Systems

Occupational Safety in Industry ◽

10.24000/0409-2961-2019-6-52-58 ◽

2019 ◽

pp. 52-58

Author(s):

G.D. Trifanov ◽

◽

A.A. Knyazev ◽

A.P. Filatov ◽

V.V. Lauk ◽

...

Keyword(s):

Continuous Monitoring ◽

Monitoring Systems

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METODE DEMONSTRASI DAN LATIHAN GUNA MENINGKATKAN HASIL BELAJAR SKETSA PADA SISWA KELAS X DKV DI SMK NEGERI 9 MEDAN

Gorga Jurnal Seni Rupa ◽

10.24114/gr.v8i2.16070 ◽

2019 ◽

Vol 8 (2) ◽

pp. 435

Author(s):

Lystia Nurhaliza Hasibuan ◽

R. Triyanto ◽

Raden Burhan ◽

Mangatas Mangatas

Keyword(s):

Action Research ◽

Learning Outcomes ◽

Research Method ◽

Initial Conditions ◽

Research Subject ◽

Learning Method ◽

Training Method ◽

Classroom Action Research ◽

Academic Year ◽

And Training

AbstrakPenelitian ini dilaksanakan di SMK Negeri 9 Medan, Jenis penelitian yaitu Penelitian Tindakan Kelas. Subjek penelitian ini adalah siswa kelas X DKV 1 yang berjumlah 36 orang siswa terdiri dari 20 laki-laki dan 16 perempuan, Penelitian ini bertujuan untuk meningkatkan hasil belajar sketsa, melalui motode demonstrasi dan latihan. Berdasarkan hasil observasi awal yang di temukan oleh peneliti, masih rendahnya hasil belajar sketsa siswa. Peneliti melakukan pre test untuk mengetahui kondisi awal sebelum dilaksanakannya tindakan persiklus. Hasil pre test menunjukkan masih rendahnya ketuntasan belajar siswa, dari 36 orang siswa hanya 7 orang siswa (19,4%) yang tuntas dalam pembelajaran sketsa. Penelitian ini menggunakan motode pembelajaran demonstrasi dan latihan. Pada siklus I diperoleh 24 orang siswa (66,7%) yang tuntas dan 12 orang siswa (33,3%) yang tidak tuntas. Dengan begitu, peneliti melanjutkan ke siklus II dengan perolehan 35 orang siswa (97,2%) yang tuntas dan 1 orang siswa (2,8%) tidak tuntas dalam pembelajaran sketsa. Terdapat peningkatan dari siklus I ke siklus II sebesar 30,5%, maka peneliti tidak melanjutkan ke siklus berikutnya. Dengan demikian dapat disimpulkan bahwa penggunaan motode pembelajaran demonstrasi dan latihan dapat meningkatkan kemampuan belajar sketsa pada siswa kelas X DKV 1 di SMK Negeri 9 Medan Tahun Pembelajaran 2019/2020.Kata Kunci: hasil belajar, sketsa, demonstrasi, latihan.AbstractThis research was conducted at SMK Negeri 9 Medan. The research employs a classroom action research method. The research subject was the ten grade students of DKV 1 with a total of 36 students consist of 20 men and 16 women. This research aims to improve skectch learning outcomes through demonstration and training method. Based on the results of preliminary observations found by researcher, the researcher found the low student sketch learning outcomes. The researcher used a pre-test to determine the initial conditions before the pre-cycle action was carried out. The result of pre-test showed that students' learning completeness was still low. From 36 students only 7 students (19,4%) who complete in sketching learning. This research was taught by using demonstration and training learning method. In cycle I, there were 24 students (66,7%) was complete and 12 students (33,3%) was incomplete. Therefore, the researcher proceed to cycle II with the acquisition of 35 students (97,2%) was complete and 1 students (2,8%) was incomplete in sketch learning. There was increase from cycle I to cycle II of 30,5%, the researcher does not proceed to the next cycle. Thus, it can be concluded that the use of demonstration and training method can improve the ability in sketch learning of the ten grade students DKV I at SMK Negeri 9 Medan in the academic year 2019/2020. Keywords: learning outcomes, sketch, demonstration, training.

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Enterprise knowledge graphs with applications to continuous monitoring systems

Intelligent Systems in Accounting Finance & Management ◽

10.1002/isaf.1491 ◽

2021 ◽

Vol 28 (1) ◽

pp. 84-93

Author(s):

Daniel E. O'Leary

Keyword(s):

Continuous Monitoring ◽

Monitoring Systems ◽

Knowledge Graphs

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Autonomes Fahren statt Stop and Go: Vorschläge zur effektiven Gestaltung der deutschen Kurzarbeit

Zeitschrift für Wirtschaftspolitik ◽

10.1515/zfwp-2019-2022 ◽

2019 ◽

Vol 68 (3) ◽

pp. 252-260

Author(s):

Almut Balleer ◽

Britta Gehrke ◽

Brigitte Hochmuth ◽

Christian Merkl

Keyword(s):

Labor Market ◽

Business Cycle ◽

Great Recession ◽

Timely Manner ◽

Rule Based ◽

The Great Recession ◽

Stop And Go ◽

Time Work ◽

The Business Cycle ◽

Short Time

Abstract This article argues that short-time work stabilized employment in Germany substantially during the Great Recession in 2008/09. The labor market instrument acted in timely manner, as it was used in a rule-based fashion. In addition, discretionary extensions were effective due to their interaction with the business cycle. To ensure that short-time work will be effective in the future, this article proposes an automatic facilitation of the access to short-time work in severe recessions. This reduces the likelihood of a too extensive use at the wrong point in time as well as structural instead of cyclical interventions.

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Monitoring the dynamic behaviors of the Bosporus Bridge by GPS during Eurasia Marathon

Nonlinear Processes in Geophysics ◽

10.5194/npg-14-513-2007 ◽

2007 ◽

Vol 14 (4) ◽

pp. 513-523 ◽

Cited By ~ 5

Author(s):

H. Erdoğan ◽

B. Akpınar ◽

E. Gülal ◽

E. Ata

Keyword(s):

Frequency Domain ◽

Element Model ◽

Traffic Load ◽

Suspension Bridges ◽

Engineering Structures ◽

Low Frequencies ◽

Temperature Changes ◽

Bridge Responses ◽

Special Complex ◽

Short Time

Abstract. Engineering structures, like bridges, dams and towers are designed by considering temperature changes, earthquakes, wind, traffic and pedestrian loads. However, generally, it can not be estimated that these structures may be affected by special, complex and different loads. So it could not be known whether these loads are dangerous for the structure and what the response of the structures would be to these loads. Such a situation occurred on the Bosporus Bridge, which is one of the suspension bridges connecting the Asia and Europe continents, during the Eurasia Marathon on 2 October 2005, in which 75 000 pedestrians participated. Responses of the bridge to loads such as rhythmic running, pedestrian walking, vehicle passing during the marathon were observed by a real-time kinematic (RTK) Global Positioning System (GPS), with a 2.2-centimeter vertical accuracy. Observed responses were discussed in both time domain and frequency domain by using a time series analysis. High (0.1–1 Hz) and low frequencies (0.00036–0.01172 Hz) of observed bridge responses under 12 different loads which occur in different quantities, different types and different time intervals were calculated in the frequency domain. It was seen that the calculated high frequencies are similar, except for the frequencies of rhythmic running, which causes a continuously increasing vibration. Any negative response was not determined, because this rhythmic effect continued only for a short time. Also when the traffic load was effective, explicit changes in the bridge movements were determined. Finally, it was seen that bridge frequencies which were calculated from the observations and the finite element model were harmonious. But the 9th natural frequency value of the bridge under all loads, except rhythmic running could not be determined with observations.

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Hydraulic Numerical Simulations of La Sabana River Floodplain, Mexico, as a Tool for a Flood Terrain Response Analysis

Water ◽

10.3390/w13243516 ◽

2021 ◽

Vol 13 (24) ◽

pp. 3516

Author(s):

Rosanna Bonasia ◽

Mackendy Ceragene

Keyword(s):

Developing Countries ◽

Numerical Simulations ◽

Flood Risk ◽

Maximum Flow ◽

Monitoring Systems ◽

Response Analysis ◽

Hydraulic Analysis ◽

River Floodplain ◽

Monitoring Tools ◽

Risk Preparedness

The floodplain of La Sabana River, Guerrero State, Mexico, was subject to disastrous floods due to the passage of extreme weather phenomena. This is a situation facing many ungauged rivers in Mexico, as well as in other developing countries, where increased urbanization and a lack of monitoring systems make many inhabited areas more vulnerable to flooding. The purpose of this work is to provide a tool for determining the flood terrain response to flooding based on a hydraulic study. This methodology combines a hydrological analysis of the river basin with the floodplain hydraulic study for the precise identification of overflow points and the resulting flood levels. Results show that, for an ungauged river, hydraulic analysis is an essential tool for determining the main potential flood points and establishing whether the river has the capacity to contain floods. Specifically, it is shown that La Sabana River is predisposed to overflow long before the river reaches its maximum flow, even in correspondence with more frequent flood scenarios. This study shows a further application that a hydraulic model can have to improve flood risk preparedness for ungauged rivers of regions where other types of monitoring tools cannot be used.

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The effect of vertical near-field ground motions on the collapse risk of high-rise reinforced concrete frame-core wall structures

Advances in Structural Engineering ◽

10.1177/13694332211056106 ◽

2021 ◽

pp. 136943322110561

Author(s):

Arsam Taslimi ◽

Mohsen Tehranizadeh

Keyword(s):

Reinforced Concrete ◽

Seismic Performance ◽

Fragility Curves ◽

Ground Motions ◽

Reinforced Concrete Frame ◽

Engineering Structures ◽

Intensity Measures ◽

Vertical Excitation ◽

High Rise ◽

Wall Structures

According to the observations of past earthquakes, the vertical ground motions have had a striking influence on the engineering structures, especially reinforced concrete ones. Nevertheless, the number of studies on their aftermath is insufficient, and despite some endeavors done by researchers, there is still a shortage of knowledge about the inclusion of vertical excitation on the seismic performance and the collapse probability of RC buildings. Hence, the variation in the collapse risk of three high-rise RC frame-core wall structures when they undergo bi-directional ground motions is discussed. In this paper, incremental dynamic analyses are carried out under two circumstances, including the horizontal (H) and the combined horizontal and vertical (H+V) earthquakes, and the seismic fragility curves are derived. The inter-story drift ratio corresponding to the onset of collapse has also been defined. The buildings collapse risk under the two circumstances is obtained from the risk integral. Results indicate that in the H+V state, structures meet the collapse criteria for lower intensity measures. Thus, the collapse risk increases as the structures are subjected to bi-directional seismic loads, and the consideration of this effect leads to a more accurate evaluation of buildings seismic performance.

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A Comparative Analysis of Open Source Network Monitoring Tools

International Journal of Open Source Software and Processes ◽

10.4018/ijossp.2016040101 ◽

2016 ◽

Vol 7 (2) ◽

pp. 1-19

Author(s):

Ali Al Shidhani ◽

Khalil Al Maawali ◽

Dawood Al Abri ◽

Hadj Bourdoucen

Keyword(s):

Open Source ◽

Continuous Monitoring ◽

Network Monitoring ◽

Suitable Candidate ◽

Monitoring Tools ◽

Comparison Results ◽

Increasing Demand ◽

Closed Source ◽

Network Administrators ◽

Free Open Source

Nowadays, the heavy reliance on computer networks necessitates minimizing outage time, increasing the availability of services, and preventing network related problems. Such realization requires continuous monitoring and observation. This is not a trivial task. Thus, automatic network monitoring tools are deployed to monitor and analyze the traffic trespassing network devices. There is an increasing demand for automated network monitoring tools and selecting a suitable candidate can become a challenging task. Some computerized network monitoring tools and systems are available, including expensive proprietary/closed-source solutions and Free Open Source Software (FOSS) systems. Three of the most popular FOSS network monitoring systems are: Nagios, OpenNMS and Zabbix. They are solid competitors to the available proprietary solutions. This paper evaluates the strengths and weaknesses of these tools. A qualitative and quantitative evaluation of the tools were conducted through monitoring real-time network traffic. The paper presents a thorough comparison between the tools. The comparison results are vital for network administrators wishing to adopt the studied monitoring tools.

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