Research on Control Methods of Measuring Super High-Rise Buildings

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.580-583.2820 ◽

2014 ◽

Vol 580-583 ◽

pp. 2820-2823

Author(s):

Xu Yang Xie

Keyword(s):

Control Methods ◽

High Rise ◽

Control Survey ◽

New Tv

This paper took Guangzhou New TV Tower as an example to introduce how to ensure the systematicness and controllability of vertical measurement through the control survey in the process of constructing the high-rise buildings, how to ensure the unity of the each axis system in monomer construction and unity of the whole structure, providing a reference basis for similar projects.

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Wind-Induced Vibration Response Analysis of a High-Rise Structure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.94-96.999 ◽

2011 ◽

Vol 94-96 ◽

pp. 999-1002

Author(s):

Yu Jie Pan ◽

Zhong Rong Lv ◽

Ji Ke Liu

Keyword(s):

Random Process ◽

Wind Engineering ◽

Computational Time ◽

Induced Response ◽

Response Analysis ◽

High Rise ◽

Engineering Vibration ◽

New Tv ◽

Wind Induced Vibration ◽

Wind Induced Vibration Response

Autoregressive (AR) method can provide a simulation of random process with relatively short computational time and acceptable accuracy while Newmark-β Method is a quick way to accomplish the response analysis. Therefore in this paper, the combination of these two methods will solve the problem of wind-induced response analysis quickly and precisely. According to several theories, such as wind engineering, vibration theory and random process, we succeed to model 37-dimensional correlated random wind velocity and it is used for the response analysis. Then we utilize Newmark-β method to analyze successfully and the key results demonstrate that Guangzhou New TV Tower does not satisfy the requirements in the building code of China thus vibration control is needed.

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Systematic Evaluation of Implemented Strategic Trypanosomosis and Vector control activities by the Application of Insecticides (Deltamethrin base) using Stationary attractive devices (targets), Ground sprays and Live bait techniques in upper Birbir valley, Ethiopia

10.21203/rs.3.rs-31536/v1 ◽

2020 ◽

Author(s):

Behablom Meharenet ◽

Tekalegn Desta ◽

Dessalew Shitu ◽

Mintesnot Tsegaye

Keyword(s):

Vector Control ◽

Systematic Evaluation ◽

Baseline Survey ◽

Supporting Evidence ◽

Control Methods ◽

Infected Cattle ◽

Study Results ◽

Control Survey ◽

Live Bait ◽

And Control

Abstract Background Trypanosomosis and vector control methods have evolved from game animal destruction and bush clearing, which mainly targeted on the removal of the source of food and shade, to insecticide spraying following the discovery of DDT. Baseline and control entomological and parasitological surveys or studies were carried out from September 2016 to February 2018, with the purpose intended to systematically evaluate the effectiveness of implemented strategic trypanosomosis and vector control activities. Results Baseline and control entomological surveys or studies were compared; and an overall apparent fly density of 2.61 flies/trap/day during the baseline survey was declined to 1.68 flies/trap/day with the rate of 64.37% after control with supporting evidence of a decrease in the daily mean catch of fly per single trap from 5.23 ± 1.58 to 3.35 ± 1.58, (Mean catch ± SD). Based on baseline and control survey or study results the overall prevalence of bovine trypanosomosis was compared and significantly declined from 7.91–4.81%, likelihood-ratio = 13.49, Pr = 0.000, with the rate of 60.81%. Furthermore, significantly better heard mean packed cell volume was observed during control survey or study 22.53 ± 4.48, 25.68 ± 4.04 (Mean PCV ± SD), when compared with baseline 21.87 ± 4.57, 25.41 ± 4.27 (Mean PCV ± SD), in parasite-infected and non- infected cattle respectively. Conclusions The study concluded that the use of stationary attractive devices (targets), Ground sprays, and Live bait techniques of Deltamethrin based insecticide had shown a significant decline in the density of tsetse fly (vector hosts) and trypanosomosis prevalence with a better heard mean PCV of infected and non-infected cattle. Therefore, the research recommended that such kind of control methods which are environmentally friendly or non-intrusive, cheap, and non-complicated for farmers and experts living at endemic tsetse belt areas.

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