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Online since: November 2012
Authors: Rong Hua Zhang, Shao Dong Liu, Jin Yun Liu, Wei Guo
; (5) Where, is the natural frequency of j-th vibration mode, can be computed through the dynamic equilibrium equation of the structure; is the damping ratio of j-th vibration mode, can be obtained by analyzing structure form and experimental data, is taken as 0.05 in this paper.
A lot of calculation demonstration were conducted in this paper, and some typical data are shown in Table 2.
4.4390 3.5131 2.2501 0.0003 0.0003 0.0001 B 2.2244 0.1592 0.0555 5.1733 4.4143 3.3143 0.0004 0.0003 0.0003 ωn=12.57 50%ω A 1.3300 0.1232 0.0662 3.8236 3.3250 2.3279 0.0003 0.0002 0.0001 B 1.1234 0.1578 0.0555 5.4836 4.7276 3.6305 0.0004 0.0003 0.0003 ωn=18.85 75%ω A 0.9002 0.1219 0.0660 5.2672 4.7860 4.2553 0.0004 0.0004 0.0003 B 0.7626 0.1557 0.0554 5.7893 5.0722 4.0440 0.0005 0.0005 0.0004 ωn=20.11 95%ω A 0.7239 0.1206 0.0658 5.1872 5.0726 4.6946 0.0006 0.0005 0.0004 B 0.6154 0.1534 0.0554 5.8127 5.1105 4.6547 0.0005 0.0005 0.0004 ωn=25.13 100%ω A 0.6903 0.1202 0.0657 5.5722 5.4577 5.0792 0.0006 0.0006 0.0005 B 0.5875 0.1527 0.0553 6.9013 6.1991 5.3051 0.0005 0.0005 0.0004 ωn=50.27 200%ω A 0.3946 0.1110 0.0640 7.4114 6.7627 5.8706 0.0006 0.0006 0.0005 B 0.3475 0.1352 0.0549 5.9162 5.6933 5.0975 0.0006 0.0006 0.0005 Table 3 Inter-Storey Shearing Force of Each Storey(ωn=25%ω) Floor number Direct storey-adding structure (103kN) Storey-adding Isolated Structure (103kN) Building A Reduction
rate of shearing force (%) Building B Reduction rate of shearing force (%) 1 10.390 4.4390 57.28 5.1733 50.21 2 9.559 3.5131 63.25 4.4143 53.82 3 8.233 2.2501 72.67 3.3143 59.74 4 6.497 0.9468 85.43 1.9741 68.62 5 4.566 0.5395 88.18 0.8638 81.08 6 2.384 0.2644 88.91 0.3366 85.88 Table 4 Inter-storey Drift of Each Storey(ωn=25%ω) (m) Floor number Direct storey-adding structure Storey-adding Isolated Structure Building A Reduction rate of shearing force (%) Building B Reduction rate of shearing force (%) 1 0.0008 0.0003 62.5 0.0004 50 2 0.0008 0.0003 62.5 0.0003 62.5 3 0.0007 0.0001 85.7 0.0003 57.14 4 0.0006 0.00524 Increased 0.0002 66.67 5 0.0004 0.0000 100 0.0438 Increased 6 0.0002 0.0000 100 0.0000 100 Conclusions 1.
Vol.42 (2009), p.2 (in Chinese) [4] Tao Song, Xindong Zhao: Low Temperature Architecture Technology, Vol.32 (2010), p.51 (in Chinese) [5] Fulin Zhou: Vibration-Reduction Control of Engineering Structures (Earthquake Publishing House, China 1997).
Online since: December 2013
Authors: A.A. Vereschaka, M.S. Migranov
At the first phase, compositions of materials, most adapted by their properties to the restructuring at thermomechanical effect caused by friction, and that allowed using the main way to control friction associated with reduction in the level of self-organization.
Analysis of the obtained data allowed proposing the following physical mechanism of the indicated processes.
Mass and EELFS spectrometry data showed that on surface of tools made of powder materials, including material with addition ofBN, secondary structure arise in the form of simple and complex oxygen-containing phases with amorphous structure.
The first method relates to alloying with application of compounds that achieve significant reduction in the level of self-organization as a result of decrease in the coefficient of friction at operating temperatures.
The first approach is connected with reduction of the level of self-organization and is performed by alloying with 5% Al2O3 to decrease the coefficient of friction at operating temperatures.
Online since: November 2012
Authors: Jan Wawryszczuk, Marek Pietrow
In previous paper [7] we have published some data about the distribution of trap depths in pure alkanes.
The data in Fig. 1 were collected using W source (see “Samples and Instruments”).
Fig. 2: Reduction of Ps intensity as a function of wavelength for C7 at 133 K.
While applying slightly longer wavelength (585 nm), we observe the reduction of quenching ability.
Next reduction of quenching appears at 950 nm, and with further increase of wavelength (1300 nm and more) the ΔI decreases continuously.
Online since: January 2013
Authors: Hoy Yen Chan, Jie Zhu, Saffa Riffat
Weather data of London.
The weather data for London was obtained from the EnergyPlus Energy Simulation Software’s database [5].
The data includes the monthly average daily global horizontal irradiance, air temperature and air humidity (Fig. 3).
According to the weather data on cooling degree days (CDD) with a baseline of 291K, cooling is needed during the months of June, July and August.
Department of Energy, EnergyPlus: weather data, Energy Efficiency and Renewable Energy Office. http://apps1.eere.energy.gov/buildings/energyplus/cfm/weather_data.cfm [6] Cali, C.F.
Online since: July 2011
Authors: Jin Feng Zhu, Guang Liang Li, Jian Jun Liu, Yan Qiu Jing, Hai Tang Huang, Hong Min Hu, Hong Li Zhang, Xiao Hui Xie
The purpose of the current work was to study the effects of different filter ventilation levels on the deliveries of some important flavor constituents and routine components in mainstream smoke and thereby to obtain some data which might be helpful in the cigarette leaf blending, casing and flavoring.
The deliveries and the reduction of flavor constituents at different filter ventilation levels Compound 50% 70% B.P. 。
E.g., the reduction of methylpyrazine is 16% at 10% ventilation and 88% at 70% ventilation.
Table 5 shows the deliveries and the reduction of TPM, nicotine, tar, carbon monoxide and water in cigarette mainstream smoke at the five cigarette ventilation levels.
The deliveries and the reduction of routine smoke components at different filter ventilation levels ID component Filter ventilation 0 10% 30% 50% 1 CO Delivery[mg/cig] 14.20 12.90 10.30 6.40 2.60 Reduction[%] 0.00 9.20 27.50 54.90 81.60 2 Tar Delivery[mg/cig] 15.00 13.40 12.00 7.60 3.00 Reduction[%] 0.00 10.70 20.00 49.30 80.00 3 TPM Delivery[mg/cig] 19.00 17.32 15.79 10.42 5.53 Reduction[%] 0.00 8.80 16.90 45.20 70.90 4 Nicotine Delivery[mg/cig] 1.20 1.15 1.03 0.79 0.49 Reduction[%] 0.00 4.10 14.20 34.20 59.20 5 Water Delivery[mg/cig] 2.82 2.80 2.74 2.05 2.00 Reduction[%] 0.00 0.70 2.80 27.30 29.10 The effects of filter ventilation on sensory quality.
Online since: August 2016
Authors: Begoña Ferrari, Ana Maria Pires Pinto, Elena Gordo Odériz, Antonia Jiménez-Morales, Alexandra C. Alves, Fatih Toptan, Roberto G. das Neves, Andreia Lima
EIS spectra in the form a) Nyquist and b) Bode diagrams of experimental data, and fitted curves for titanium and Ti-Al2O3 composite.
Figure 3 shows the equivalent circuit that was used to fit the experimental data for the titanium and Ti-Al2O3 composite representing the native oxide film on the surface in contact with the electrolyte.
Equivalent circuit parameters obtained from EIS data for titanium and Ti-Al2O3 composite.
From this data it is possible to see that the difference between the materials was not significant, which means that the corrosion behavior of titanium and composite is very similar.
Corrosion data obtained from potentiodynamic tests.
Online since: October 2018
Authors: Vadim Aleksandrov, Denis Drugov, Evgeniya Neelova, Marsel Kadyrov, Andrey Ponomarev
Hypsometric marks of the OWC position (conditional counting levels for some deposits) were defined acc. to well logging and well testing data.
The T1 formation section is represented by alternation of well-porous and impermeable carbonate differences, and well logging data clearly show a transition zone within the interval of depths of 1968-1980 m.
An effective oil-saturated thickness uncovered by well 5 was 4.6 m and is characterized by low oil saturation according to well logging data.
The geophysical interpretation of well logging data shows oil saturation in the roofing part of the T1 formation, and the water/oil contact under resistance curves can be adopted at the absolute elevation of 1779.2 m, which is above the bottom of the oil-saturated reservoir in well 314 by 15.8 m.
The attributive analysis of seismic survey data found no stable links between seismic attributes of the wavefield and gave no opportunity to assess porosity and permeability properties of producing sediments.
Online since: December 2012
Authors: Shih Hsien Lin, Pi Lien Kao, Huan You Lin
Advantages of implementing ERP are mostly the reduction of costs, increase of productivity, increase of the employees’ average business volume, decrease of expenditure of information service department, reduction of inventory level, reduction of reaction time, enhancement of customer satisfaction and loyalty, reduction of data key-in frequency, enhancement of business efficiency, etc [1].
The core is a general database, which collects all business activities and process data in the enterprises.
When there are new data, the related information will be updated to match the strategy, organizational characteristics and corporate culture in order to fulfill maximum benefits [3].
Project Preparation Go-Live and support Business Blueprint Realization Final Preparation Exploration Contextualization Development Deployment Venture capital Promotions Salary increases Guaranteed work Job hopping Continuing education Vocational training Operation Performance Figure 2 Integration of the ERP system Acknowledgment The authors would like to thank the small and medium enterprises in the study, the interviewers who collected the data, and Choice Language Service is appreciated for his editorial assistance.
Online since: September 2016
Authors: Valentina V. Smirnova, Alexander P. Ilyin, Andrey V. Korshunov, Sergey V. Zmanovskiy
Introduction The reduction of particle diameter of aluminum powders from general considerations of the kinetics of heterogeneous reactions should lead to increased reactivity [1].
Mass fractions of metal aluminum in the samples were determined using volumetric analysis and by calculation according to the DTA data.
The results of research of influence of storage conditions of powders at different humidity showed that oxidation rate and composition of products is not consistent with the data on the effect of dispersion of the samples on the thermal stability to oxidation when heated.
To confirm the conclusion made on the basis of volumetric data XRD analysis of the samples was carried out after incubation in saturated water vapor above the solutions and above silica gel for 14 days.
In accordance with the received data micron powders of aluminum is less resistant to water vapor than aluminium nanopowders.
Online since: March 2024
Authors: Tri Widodo Besar Riyadi, Rouf Muhammad, Wahyu Tri Ardhana
Uncertainty analysis was conducted to predict the accuracy of the measured data.
All measurements were recorded in real-time and stored in a data logger.
All measurements are calibrated to get accurate data.
The measured data comprises the temperature and electrical output.
The system's temperature and power were measured and stored in a data logger.
Showing 6631 to 6640 of 40324 items