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Journal articles on the topic 'Project influence curve'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Selyukov, D. D., and N. V. Vishnyakov. "INFLUENCE OF VERTICAL CURVE ON HIGHWAY TRAFFIC SAFETY." Science & Technique 17, no. 3 (2018): 255–60. http://dx.doi.org/10.21122/2227-1031-2018-17-3-255-260.

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The paper is devoted to a challenging problem of ensuring traffic safety on the sections of a highway vertical curve and it provides an analysis for works concerning design, lay-out and organization of a project roadway. A change in vehicle speed has been analyzed depending on the length of a curve and a maximum longitudinal slope of a project roadway. The paper presents statistical data about accidents in the Republic of Belarus for several years on the sections of curves pertaining to project roadways. Comparative analysis of difference between point marks on a parabola is given in the paper

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Xiong, Chun Bao, Mei Jiao Xiao, and Xiao Rui Shi. "Test Analysis of Groundwater Withdrawal and Land Subsidence in Tianjin Airport Project." Applied Mechanics and Materials 204-208 (October 2012): 418–24. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.418.

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The pumping tests on the hydrogeology, including single well tests, group wells tests and land subsidence analysis, were carried out for Tianjin transportation center project. The straight-line graphical method, curve fitting method, formula method and infiltration curve extrapolation method were applied to obtain the permeability coefficients and influence radius of the main aquifers, and to obtain the mutual influence between the aquifers. The results of the land subsidence observations indicate that amount of land subsidence decreases with increasing distance from the wells. And it is also

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Crispim, José, Luiz Henrique Silva, and Nazaré Rego. "Project risk management practices: the organizational maturity influence." International Journal of Managing Projects in Business 12, no. 1 (2019): 187–210. http://dx.doi.org/10.1108/ijmpb-10-2017-0122.

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PurposeThe purpose of this paper is to identify patterns of project risk management (PRM) practices’ adoption, and provides empirical evidence concerning the importance (and key attributes) of organizational PRM maturity to the use of risk-related practices and project performance.Design/methodology/approachThe research involved two phases: interviews with five project managers, and a worldwide survey of project managers that resulted in the analysis of 865 valid questionnaire responses. Cluster analysis was used to classify PRM practices’ use, factor analysis to detect the structure of the re

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Hu, Da, Yongsuo Li, Xiaoqiang Liang, Youping Wu, Sheng Zhang, and Qi Yao. "Analysis and Prediction of Pavement Settlement Caused by Jacking Construction of Ultra-Shallow Rectangular Shield Frame Bridge." Mathematical Problems in Engineering 2020 (October 28, 2020): 1–14. http://dx.doi.org/10.1155/2020/9624927.

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The primary purpose of this paper is to analyze and predict the ground settlement law of large-span rectangular shield frame bridge jacking project, to provide a reference for the optimization design and safe construction of similar projects. In this paper, combined with the jacking project of ultra-shallow buried soft soil layer rectangular shield frame bridge, through the on-site monitoring, the settlement deformation law of the longitudinal and transverse sections of the expressway pavement during the jacking construction process is discussed, and the reasons for the large settlement and re

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Zheng, Xi Jian, Zhong Nan Wang, and Lei Ma. "Analysis of Influence Parameters of the Project Ribbed Bar Machining Quality." Applied Mechanics and Materials 328 (June 2013): 426–31. http://dx.doi.org/10.4028/www.scientific.net/amm.328.426.

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This paper presents the method of calculating roller spacing and press amount of straightening roll. based on rigid-flexible virtual prototype technology, the entities model of straightening block was established by Pro/E, then it was imported into the ADAMS environment and constraints were added to create a rigid model, the model neutral file generated by ANSYS, thereby the rigid-flexible coupling virtual prototype was established. The distance of the point in the steel-bar relative to the end in Y direction is obtained through simulation, the acceleration curve and the range of roller spacin

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Huang, Qiang, Wei Ping Wang, and Hai Yan Deng. "Study on the Influence of Shallow Groundwater Source Heat Pumps on Groundwater Quality in Weifang, China." Applied Mechanics and Materials 641-642 (September 2014): 97–100. http://dx.doi.org/10.4028/www.scientific.net/amm.641-642.97.

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Selecting 4 shallow groundwater source heat pump (GSHP) projects as research objects in Weifang city of Shandong province, China, the groundwater quality in the project area was, observed and analyzed by sampling continuously. The results show that the concentrations of chloride and the total hardness are relatively stable, and there are no apparent changes; In the change curve of TDS in different kind of shallow GSHPs, the worse the sealing condition of the project, the more obvious the rising trend of TDS; The concentration of nitrate is generally on the rise, and the concentration of ammoni

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Hua, Xi. "Study on Engineering Materials with Results of the Analysis of the Influence of Foundation Pit Surrounding Buildings Settlement." Advanced Materials Research 788 (September 2013): 631–35. http://dx.doi.org/10.4028/www.scientific.net/amr.788.631.

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In this project, some engineering materials will be used, such as reinforcing bar, commercial concrete. Because the site underground water level is higher, in order to prevent the surrounding buildings and roads happens the non-uniform settlement, the settlement must be observed, using single double station observation way, each settlement will draw up the curve, and according to the settlement curve for foundation pit precipitation to the influence of the architecture around the research.

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Giessler, M., F. Gauterin, K. Wiese, and B. Wies. "Influence of Friction Heat on Tire Traction on Ice and Snow." Tire Science and Technology 38, no. 1 (2010): 4–23. http://dx.doi.org/10.2346/1.3298679.

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Abstract The internal drum test bench of the Universität Karlsruhe (TH) allows tire performance measurements under controllable conditions. In cooperation with Continental AG a research project was initiated to focus on traction on ice and snow surfaces. The test chamber was upgraded with a cooling system, surface conditioners and a snow production system. As a major result of these experiments, a strong correlation of thermal conditions and transmittable forces has been discovered. Furthermore, a high-speed infrared camera was used to monitor the temperature increase of the tire surfaces unde

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Li, Ju, Chang Lin Liao, and Shi Li. "Characteristics Curve of Multicontact for CO₂ Flood." Advanced Materials Research 734-737 (August 2013): 1161–64. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.1161.

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Miscible and/or near miscible CO2 flood are among the most widely used enhanced oil recovery techniques. The successful design and implementation of a miscible gas injection project is dependent upon the accurate determination of MMP[1]-[9], the pressure above which the displacement process becomes multicontact miscible. This paper presents a method to get the characteristics curve of multicontact. The curve can illustrate the character in the Miscible and/or near miscible gas injection processes, based the curve, From the change of characteristics curve of multicontact ,we can known the type

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Sidorova, E. A., O. N. Vaganova, and A. Yu Slastenin. "Methods for determining the position of the curve in the plan and the influence of the geometry of the track on the indicators of interaction between the track and the rolling stock." VNIIZHT Scientific Journal 79, no. 6 (2021): 365–72. http://dx.doi.org/10.21780/2223-9731-2020-79-6-365-372.

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The article substantiates the necessity of supplementing the existing estimate of the track position in the plan by the difference of adjacent bending arrows with an estimate of deviations from the fixed initial position, which ensures the constancy of the characteristics of a single-radius curve or the components of a multi-radius curve along their entire length. As a fixed initial position of the reference base (base position), it is proposed to accept the design position or the position of the track after the repair performed according to the project, and in the absence of the project, the

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Wang, Ya-Qiong, Wei-Kang Kong, and Zhi-Feng Wang. "Effect of Expanding a Rectangular Tunnel on Adjacent Structures." Advances in Civil Engineering 2018 (November 6, 2018): 1–13. http://dx.doi.org/10.1155/2018/1729041.

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The expansion of urban underpass has become the mainstream of development to cope with urban congestion, and the effect on adjacent existing structures during enlarging construction is also an important issue in the construction process. In order to better understand the influence of tunneling on adjacent structures, the pedestrian underpass expanding project above-crossing Xi’an Metro Line 1 was investigated. The aim was to analyze the deformation curves characteristics of adjacent structures by field observation of ground settlement, heave of existing tunnels, and settlement of piles. The re

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Yang, Yu Si, Ru Dong, and Jie Gao. "The Fehleranalyse Error Analysis of Fully Characteristic Curve of Pump to Be Nominalization and Study for the Influence on Result of Hydraulic Transients Calculation." Advanced Materials Research 250-253 (May 2011): 3696–701. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.3696.

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In this paper，by transforming the fully characteristic curve of pump with eighty specific speed to be numeralization he obtained fehleranalyse error of discrete data were analyzed based on the pump similarity theory and the difference between certain assumed condition and real situation in numeralization process. Then the influence of the fehleranalyse error of numeralization method on the pressure boost caused by Pump-off water hammer was computed by a Pump-off water hammer calculation within an real engineering project. The reliability of numeric calculation method of fully characteristic cu

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Hernandez, Paul R., Patricia D. Hopkins, Krysta Masters, et al. "Student Integration into STEM Careers and Culture: A Longitudinal Examination of Summer Faculty Mentors and Project Ownership." CBE—Life Sciences Education 17, no. 3 (2018): ar50. http://dx.doi.org/10.1187/cbe.18-02-0022.

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It is widely recognized that the United States needs to attract and retain more people in science, technology, engineering, and mathematics (STEM) careers. Intensive undergraduate research experiences (UREs) are one of the few strategies shown to improve longitudinal student interest and persistence in STEM-related career pathways; however, less is known about the underlying process linking activities to positive outcomes. The tripartite integration model of social influences (TIMSI) provides a framework for understanding the social influence processes by which students integrate into STEM car

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Yan, Qing Hui, Han Min Xiao, Ling Hui Sun, Wei Dong Liu, and Jun Cheng Hu. "Study on the Features of Production Decline Law in Oil Manufacturing System in Wangyao Block." Applied Mechanics and Materials 252 (December 2012): 388–93. http://dx.doi.org/10.4028/www.scientific.net/amm.252.388.

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Features of production decling determines the deployment of development project in oilfield, which has heavy influence on the oil manufacturing system. Eq.(17)and (18) have shown the final results. The characteristics of oil and water percolation, presented by Figure.1, are the primary factors for decline law. Oil-water relative permeability equations of WangYao Block, in AnSai oilfield, was deducted, and the oil-water relative permeability curves were drawn according to the equations. The oil phase curve presents a change from a linear relationship to an exponential relationship with the incr

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Figueredo, Aurelio José, Audrey J. Brooks, H. Stephen Leff, and Lee Sechrest. "A Meta-Analytic Approach to Growth Curve Analysis." Psychological Reports 87, no. 2 (2000): 441–65. http://dx.doi.org/10.2466/pr0.2000.87.2.441.

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A meta-analytic approach to growth curve analysis is described and illustrated by applying it to the evaluation of the Arizona Pilot Project, an experimental project for financing the treatment of the severely mentally ill. In this approach to longitudinal data analysis, each individual subject for which repeated measures are obtained is initially treated as a separate case study for analysis. This approach has at least two distinct advantages. First, it does not assume a balanced design (equal numbers of repeated observations) across all subjects; to accommodate a variable number of observati

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Liu, Yan, Kai Xu, and Meirong Wei. "A study on MEMS oscillators‘ frequency drift of temperature." MATEC Web of Conferences 189 (2018): 11002. http://dx.doi.org/10.1051/matecconf/201818911002.

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The frequency output of oscillators is subject to a series of factors, such as working temperature, humidity, shock and vibration. Most of these factors are related to the manufacturing processes and packaging techniques employed in the semiconductor industry. Among the above factors, the influence of temperature is the most direct and most significant. And the effect of temperature on the frequency output of the oscillator is also called oscillators‘ frequency drift of temperature. This project aims to study frequency drift of two types of oscillators influenced by temperature, namely Quarts

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Marco, Y., I. Masquelier, V. Le Saux, and P. Charrier. "FAST PREDICTION OF THE WÖHLER CURVE FROM THERMAL MEASUREMENTS FOR A WIDE RANGE OF NR AND SBR COMPOUNDS." Rubber Chemistry and Technology 90, no. 3 (2017): 487–507. http://dx.doi.org/10.5254/rct.16.83755.

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ABSTRACT In previous papers, a protocol using thermal measurements to predict the fatigue lifetime throughout an energy-based criterion afforded a very efficient prediction of the deterministic Wöhler curve with only one sample, within less than 1 day. Nevertheless, these papers investigated a limited number of materials because the fatigue campaigns required to provide a validation of this fast prediction are very demanding in time and specimens. In this study, the PROFEM project (supported by the French National Research Agency) allowed us to investigate a very wide range of materials includ

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Huang, Shan Ming, Yu Chuan Liu, and Cheng Cheng Wang. "Stability Analysis of Sinkhole Considering Groundwater Level Fluctuation." Applied Mechanics and Materials 226-228 (November 2012): 1426–31. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1426.

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The Method of Finite Element Method Strength Reduction is used to numerical calculate and analyse the subgrade with soil cave, by considering the influence of groundwater level fluctuation in its stability. Nondimensionalize the effect factors, and draw the stability curve to get the regression curve, then make the result regression coefficient directly to the project cases. The result shows that under the weight of the subgrade, the subgrade with soil cave is damaged by that the soil around the soil cave is sheared. The more the value of is, the larger the stability coefficient is, and the hi

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Zhang, Jie, Gang Wang, Haobo Jiang, Fangzheng Zhao, and Guilin Tian. "Research and Appalication of Software Defect Predictionn based on BP-Migration learning." MATEC Web of Conferences 232 (2018): 03017. http://dx.doi.org/10.1051/matecconf/201823203017.

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Software Defect Prediction has been an important part of Software engineering research since the 1970s. This technique is used to calculate and analyze the measurement and defect information of the historical software module to complete the defect prediction of the new software module. Currently, most software defect prediction model is established on the basis of the same software project data set. The training date sets used to construct the model and the test data sets used to validate the model are from the same software projects. But in practice, for those has less historical data of a so

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Jiang, Kaiyuan, Yutong Zhang, Haibin Wu, Aili Wang, and Yuji Iwahori. "Heterogeneous Defect Prediction Based on Transfer Learning to Handle Extreme Imbalance." Applied Sciences 10, no. 1 (2020): 396. http://dx.doi.org/10.3390/app10010396.

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Software systems are now ubiquitous and are used every day for automation purposes in personal and enterprise applications; they are also essential to many safety-critical and mission-critical systems, e.g., air traffic control systems, autonomous cars, and Supervisory Control And Data Acquisition (SCADA) systems. With the availability of massive storage capabilities, high speed Internet, and the advent of Internet of Things devices, modern software systems are growing in both size and complexity. Maintaining a high quality of such complex systems while manually keeping the error rate at a min

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Fertilia, Novika Candra, and Hana Sary Ayuningtias. "CAUSE ANALYSIS OF CONTRACT AMENDMENT IN THE X DRY DAM CONSTRUCTION PROJECT IN INDONESIA." Neutron 20, no. 01 (2020): 33–40. http://dx.doi.org/10.29138/neutron.v20i01.46.

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The government is building two dams to pursue flood capacity in Jakarta, one of which is the X Dry Dam project. There were obstacles during the construction of this project, which resulted in several changes in the form of contract amendments. The purpose of this study is to determine the most influential factors that cause contract amendments and give suggestions for that factors, so the next contract amendment can be minimized and the project can run according to the costs and time that has been set. In this study, the authors use quantitative research methods by distributing questionnaires

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Wang, You Xi, and Jun Qing Ma. "Analysis of Unconfined Compressive Strength Calculation Formula of Soil-Cement." Advanced Materials Research 243-249 (May 2011): 6869–74. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6869.

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The soil-cement is applied in hydraulic engineering, construction engineering and highway engineering. It needs take much time and energy to do the experiment of soil-cement design, because the influence factors of soil-cement unconfined compressive strength are many. The study is based on the former experimentations, and quantitative analyzed relationships among soil-cement unconfined compressive strength, earthiness, cement mixing amount and curing time by nonlinear curve fitting. Then, rational experience formula is given in this paper. It is tested in Nantong Building foundation excavation

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Shen, Xiang, Da-Jun Yuan, and Da-Long Jin. "Influence of Shield Attitude Change on Shield–Soil Interaction." Applied Sciences 9, no. 9 (2019): 1812. http://dx.doi.org/10.3390/app9091812.

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The mechanism of shield–soil interaction and multi-phase equilibrium control theory in shield tunneling process still lack sufficient understanding. Aiming at this problem, with the improved calculation method of loose earth pressure, the initial boundary problem of shield attitude calculation was solved. Based on the ground reaction curve, the shield–soil interaction was simulated by the equivalent springs, and the displacement of surrounding soil was calculated during the change of the shield attitude. Then, the theoretical method of surrounding soil load acting on the shield were obtained.

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Połoński, M. "Application Of The Work Breakdown Structure In Determining Cost Buffers In Construction Schedules." Archives of Civil Engineering 61, no. 1 (2015): 147–61. http://dx.doi.org/10.1515/ace-2015-0010.

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AbstractThe paper presents methods of determining the location of cost buffers and corresponding contingency costs in the CPM schedule based on its work breakdown structure. Application of correctly located cost buffers with appropriately established reserve costs is justified by the common overrunning of scheduled costs in construction projects. Interpolated cost buffers (CB) as separate tasks have been combined with relevant summary tasks by the start–to–start (SS) relationship, whereas the time of their execution has been dynamically connected with the time of accomplishment of particular s

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Guo, Jianhua, Zhangjun Dai, Shichang Li, Nadeem Muhammad, and Hui Gao. "Study on Creep Characteristics of Expansive Soil in High-Fill Channel of South-to-North Water Transfer Project." Advances in Civil Engineering 2020 (November 11, 2020): 1–19. http://dx.doi.org/10.1155/2020/8852131.

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In the Nanyang section of the midroute of the South-to-North Water Transfer Project, the expansive soil is often used as a filler for high-fill channels. After the channel is stabilized, the expansive soil undergoes creep deformation over time. Studying the creep characteristics of expansive soils in different environments is particularly important for evaluating the safe operation of high-fill channels. In the current study, the creep test of expansive soil under different moisture content and dry density was carried out. It is proposed that the slope of the fitted straight line in the compre

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Holzhütter, Hermann-Georg. "A General Measure of In Vitro Phototoxicity Derived from Pairs of Dose-Response Curves and its Use for Predicting the In Vivo Phototoxicity of Chemicals." Alternatives to Laboratory Animals 25, no. 4 (1997): 445–62. http://dx.doi.org/10.1177/026119299702500407.

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In pharmacology, it is common to evaluate the influence of external effectors (for example, temperature, pH, and presence of a second drug) on dose-response relations by the potency factor (PF50): [Formula: see text] where ED50 (± effector) denotes the 50% effective dose in the presence and in the absence of the effector, respectively. In this paper, the external effector is ultraviolet (UV) light, and PF50 is referred to as the photoirritancy factor (PIF). There are two parameters which limit the applicability and toxicological reliability of the PIF. Firstly, the physical properties (for exa

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Malakhova, E. Y., A. M. Lamminpiya, and Yu E. Shelepin. "The influence of part of speech text structure on eye movements during natural reading." Experimental Psychology (Russia) 9, no. 4 (2016): 18–32. http://dx.doi.org/10.17759/exppsy.2016090403.

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The difficulty of lexical processing can explain substantial part of variability in fixation duration during the reading process. Factors like word length, frequency, syntactic and semantic ambiguity impact fixation time. On the other hand, there is not much understanding of how saccades parameters vary depending on the text characteristics. Here we investigate how part-of-speech text structure influences eye-movements during the natural reading process. We presented text excerpts from Russian classic literature containing overabundant quantity of verbs, nouns or adjectives to the participants

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McKenzie, Jennifer A., Edward P. Weiss, Ioana A. Ghiu, et al. "Influence of the interleukin-6 −174 G/C gene polymorphism on exercise training-induced changes in glucose tolerance indexes." Journal of Applied Physiology 97, no. 4 (2004): 1338–42. http://dx.doi.org/10.1152/japplphysiol.00199.2004.

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A polymorphism in the IL-6 gene, a G-to-C substitution 176 bp upstream of the ATG translation initiation site, has been associated with diabetes prevalence and insulin resistance. Interventions including exercise training are frequently used to modify cardiovascular disease risk factors. Consequently, this project examined associations between the IL-6 −174 genotype and oral glucose tolerance test outcomes in 50- to 75-yr-old sedentary men and postmenopausal women before and after aerobic exercise training. Among the 87 individuals who started the study, 56 were retested after 6 mo of aerobic

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Jing, Shu Guang, Xue Ping Gao, and Yun Peng Han. "Study on Hydraulic Characteristics of the Dragon-Raise-Head Spillway Tunnel." Advanced Materials Research 748 (August 2013): 1095–98. http://dx.doi.org/10.4028/www.scientific.net/amr.748.1095.

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This study compared the hydraulic characteristics of the Dragon-Raise-Head spillway tunnel by using a 3-D turbulence model, taking one specific spill tunnel reconstruction project as an example. In the first place, we proved the feasibility of the numerical stimulation results by the hydraulic model test of the Dragon-Head-Raise spillway tunnel comparatively. Then we comapared discharge capacity, head loss and flow state of four inlet elevations of the Dragon-Raise-Head spillway tunnel. The results showed little influence of different inlet elevations on discharge capacity, head loss and flow

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Abualbasal, Wejdan, Emad Abu-Shanab, and Heba Al-Quraan. "Dynamic Analysis of UTAUT." International Journal of Web-Based Learning and Teaching Technologies 11, no. 3 (2016): 40–54. http://dx.doi.org/10.4018/ijwltt.2016070104.

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The technology adoption domain is rich with studies that utilized a cross-sectional snapshot of subjects' perceptions regarding the adoption of new technology. This research tried to implement a longitudinal study that took three measures within 4 months to estimate the influence of time and experience on students' perceptions. The study adopted a modified version of the Unified Theory of Acceptance and use of Technology (UTAUT) with effort expectancy, performance expectancy, facilitating conditions, and locus of control predicting the intention to use Microsoft Project. Results supported the

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Liu, Xin, Wenbin Gu, Jianqing Liu, Zhenxiong Wang, Jinglin Xu, and Tao Cao. "Investigation of the Propagation Characteristics of Underwater Shock Waves in Underwater Drilling Blasting." Shock and Vibration 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/9483756.

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During the first-stage project of the main channel of Ningbo-Zhoushan Port’s Shipu Harbor, underwater shock waves were monitored. By analyzing a typical measured pressure time history curve, the characteristics of underwater shock waves in an engineering context were obtained. We obtained a traditional exponential attenuation formula for underwater shock waves based on the measured data, simplified the model of underwater drilling blasting based on engineering practice, deduced a revised formula for underwater shock wave peak overpressure on the basis of dimensional analysis, established a lin

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Shek, Daniel T. L., and Xiaoqin Zhu. "Paternal and Maternal Influence on Delinquency among Early Adolescents in Hong Kong." International Journal of Environmental Research and Public Health 16, no. 8 (2019): 1338. http://dx.doi.org/10.3390/ijerph16081338.

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Objective: The aim was to examine the effects of parental behaviors and the parent-child relationship on delinquency levels as well as growth rates among early adolescents, and to explore the cross-sectional and longitudinal influence of fathers and mothers. Method: The study used and analyzed data collected at Waves 1–3 (N = 2669, age 12.56 ± 0.71 years at Wave 1) in a six-year research project. Results: While both parents’ behavioral control significantly predicted a lower initial level of delinquency, only higher behavioral control of fathers predicted a fast increase in delinquency. In con

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Yi, Chin-Chun, Chyi-In Wu, Ying-Hwa Chang, and Ming-Yi Chang. "The Psychological Well-Being of Taiwanese Youth." International Sociology 24, no. 3 (2009): 397–429. http://dx.doi.org/10.1177/0268580909102914.

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This study examines the growth trajectory of the psychological well-being of Taiwanese adolescents from early to late adolescence. Under the competitive educational system in Taiwan, family and school context are two major loci accounting for the developmental outcome. Data are taken from the Taiwan Youth Project, which is a longitudinal panel study of 2696 students since the year 2000. The study uses individual depressive symptoms as the dependent variable. Family cohesion, family educational strategy as well as classroom effects at school are chosen to indicate the potential contextual influ

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Di Giulio, Giuseppe, Alexandros Savvaidis, Matthias Ohrnberger, et al. "Exploring the model space and ranking a best class of models in surface-wave dispersion inversion: Application at European strong-motion sites." GEOPHYSICS 77, no. 3 (2012): B147—B166. http://dx.doi.org/10.1190/geo2011-0116.1.

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The inversion of surface-wave dispersion curve to derive shear-wave velocity profile is a very delicate process dealing with a nonunique problem, which is strongly dependent on the model space parameterization. When independent and reliable information is not available, the selection of most representative models within the ensemble produced by the inversion is often difficult. We implemented a strategy in the inversion of dispersion curves able to investigate the influence of the parameterization of the model space and to select a “best” class of models. We analyzed surface-wave dispersion cu

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Sze, Tat-Ming, Sieh-Hwa Lin, Pei-Jung Hsieh, and I.-Jung Chen. "Sex Differences in the Development of Perceived Family Cohesion and Depressive Symptoms in Taiwanese Adolescents." Psychological Reports 113, no. 1 (2013): 54–72. http://dx.doi.org/10.2466/10.02.pr0.113x18z2.

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This study investigates the progression of family cohesion perceptions and depressive symptoms during the character development stage in adolescents. Data were used from the Taiwan Youth Project. The final sample comprised 2,690 adolescents with 1,312 girls (48.8%; M age = 13.0 yr., SD = 0.5). Latent curve growth analysis was employed to explore these developments. Seventh-grade girls reported greater family cohesion and more depressive symptoms than boys, and boys reported greater growth in family cohesion than girls. However, progression of depressive symptoms was not associated with the chi

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Yang, Teng, Jiaqi Zhang, Xiao Zhang, Qingsong Zhang, and Zhanchao Yin. "Layered Grouting Technology Based on a Comprehensive Water-to-Cement Ratio for the Overlying Loess Stratum of Urban Shallow Tunnels." Advances in Civil Engineering 2020 (June 16, 2020): 1–13. http://dx.doi.org/10.1155/2020/2904789.

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Different from sand and clay, loess has special engineering properties; hence, existing soil grouting theories are not suitable for the disaster treatment of shallow loess tunnels. In this study, a fine grouting reinforcement test system was developed, and the Yuhan Road tunnel overlying loess was used as the injection medium. An orthogonal test based on slurry dry density, moisture content, water-to-cement ratio, and grouting pressure was conducted. Results revealed that the loess samples have high integrity after grouting, and the cohesion and compressive strength improved significantly. The

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Gaffney, Michael, Jenny Munro, Ben Inns, et al. "Young people’s participation in service evaluation." Aotearoa New Zealand Social Work 25, no. 4 (2016): 62–70. http://dx.doi.org/10.11157/anzswj-vol25iss4id64.

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The Otago Youth Wellness Trust is a charitable organisation that has been operating for 15 years in Dunedin, New Zealand. It decided to evaluate the wraparound service it provided to young people in the community. The young people are referred by other agencies, including schools, and are usually deemed to be in need of significant support. In this article, members of a Youth Advisory Group (YAG), describe the experience of being involved in this service evaluation project. The YAG was made up of a small number of ‘service users’ who developed methods for engaging young people as evaluation pa

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Shen, Xi Zhong, Jin Xia Zhang, and Min Zhang. "Research on Un-Linear Deformation Characteristics of Unsaturated Clay with General Triaxial Test." Advanced Materials Research 243-249 (May 2011): 3117–22. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.3117.

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Difficult in soil-water characteristic curve achieved, existence of non-uniqueness and indistinct in influence of unlinear deformation characteristics of soil about density and water content, deformation characteristics of unsaturated soil were studied difficultly with general triaxial test, thus direct application of unlinear Duncan-Chang model in unsaturated soil was restricted. General triaxial tests with combined dry density and water content are carried out, changing rules of parameters of Duncan-Chang model are summarized, mathematical functions between dry density, saturation and parame

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Osborne*, Dennis, Douglas C. Sanders, and Donn R. Ward. "Fresh Produce Food Safety Training Program and Curriculum Development for the Southeast." HortScience 39, no. 4 (2004): 830D—831. http://dx.doi.org/10.21273/hortsci.39.4.830d.

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This project directly addresses national food safety “priority issues”. Project design incorporates food safety and food chain security as focal points of educational efforts, then initiates practical, producer-level research, teaching, and extension whereby food handling and safety issues are addressed in a systems context. The overall Project goals are (1) to deliver information about Fresh Produce Food Safety (“FPFS”) programs and principles defined in the FDA Guide to fresh fruit and vegetable handlers in the Southeastern United States, (2) to provide hands-on individual state assistance w

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Wei, Zhengde, and Yanpeng Zhu. "A Theoretical Calculation Method of Ground Settlement Based on a Groundwater Seepage and Drainage Model in Tunnel Engineering." Sustainability 13, no. 5 (2021): 2733. http://dx.doi.org/10.3390/su13052733.

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Seepage is ubiquitous during tunneling in areas with high groundwater tables. The ground settlement trough on a single tunnel is well described by Peck’s formula, but it cannot reflect the settlement caused by seepage. In this paper, assuming that the groundwater inside and outside the tunnel is a one-dimensional steady-state seepage condition, the groundwater seepage and drainage model of the tunnel was established. Based on the model and the principle of groundwater dynamics, the seepage flow calculation formula was derived, and the dewatering funnel curve equation of the groundwater level s

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Ge, Dangke, Haiying Cheng, Mingjun Cai, Yang Zhang, and Peng Dong. "A New Predictive Method for CO2-Oil Minimum Miscibility Pressure." Geofluids 2021 (January 4, 2021): 1–8. http://dx.doi.org/10.1155/2021/8868592.

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Gas injection processes are among the effective methods for enhanced oil recovery. Miscible and/or near miscible gas injection processes are among the most widely used enhanced oil recovery techniques. The successful design and implementation of a miscible gas injection project are dependent upon the accurate determination of minimum miscibility pressure (MMP), the pressure above which the displacement process becomes multiple-contact miscible. This paper presents a method to get the characteristic curve of multiple-contact. The curve can illustrate the character in the miscible and/or near mi

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Luo, Yanbin, Jianxun Chen, Bao Liu, Lijun Chen, and Jiangtao Xie. "Analysis of Pipe-Roof in Tunnel Exiting Portal by the Foundation Elastic Model." Mathematical Problems in Engineering 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/9387628.

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The Pasternak double-parameter elastic foundation model of pipe-roof during the construction of tunnel exits is first established. Based on the portal project of Hanjiashan highway tunnel, an inclinometer is adopted to measure the settlement deformation of a pipe-roof and demonstrates the deformation law in tunnel exiting portals. The formulas for calculating the deflection and internal forces are derived to analyze the deformation of the pipe-roof in each excavation stage, and the results are compared with field monitoring data. Finally, the influences of excavation height, excavation footage

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Zheng, Yuchao, Jianyong Lei, Fei Wang, Liang Xiang, Jianfeng Yang, and Qingshuai Xue. "Investigation on Dewatering of a Deep Shaft in Strong Permeable Sandy Pebble Strata on the Bank of the Yellow River." Geofluids 2021 (September 24, 2021): 1–15. http://dx.doi.org/10.1155/2021/9994477.

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This paper reports the dewatering scheme of a deep excavation in sandy pebble strata. The excavation is in high permeability strata and is close to the Yellow River, making the dewatering difficult during construction. At present, few researchers have specially studied the dewatering scheme of deep excavations in strong permeable strata near the water resource. Field pumping test was conducted before the excavation activity, and the permeability coefficient of the strata was obtained by reverse analysis. According to the characteristics of the project, the dewatering scheme of “ waterproof cur

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Zhang, Liguo, Dong Wang, and Jiaxing Dong. "Assessment of the Excavation Damaged Zones in the Surrounding Rock of an Underground Powerhouse under High In Situ Stress Using an Acoustic Velocity Detecting Method." Advances in Civil Engineering 2020 (July 4, 2020): 1–13. http://dx.doi.org/10.1155/2020/7297260.

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Excavation damaged zones (EDZs) in deeply buried underground powerhouse have become major obstacles to design and support, which potentially threaten safety and stability and increase construction and support costs. In this study, investigations of the EDZs were performed by applying an acoustic velocity detecting method in Houziyan hydropower project, southwest of China. A total of 38 testing boreholes distributed in high sidewalls of the main powerhouse were carried out, and corresponding 153 curves were obtained and analyzed. Then, EDZs were divided into highly damaged zone (HDZ), slightly

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Ma, Tianzhong, Yanpeng Zhu, and Xiaohui Yang. "Calculation of Bearing Capacity and Deformation of Composite Pile Foundation with Long and Short Piles in Loess Areas." Advances in Civil Engineering 2020 (October 20, 2020): 1–10. http://dx.doi.org/10.1155/2020/8829779.

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In order to calculate the bearing capacity and settlement deformation of composite pile foundations with long and short piles in collapsible loess areas, the theoretical approximate solution was used to obtain the location of the neutral point of single piles. Additionally, based on the equation to calculate the bearing capacity of multielement composite foundations, a method considering the negative frictional resistance was proposed for calculating the bearing capacity of composite pile foundations with long and short piles. Based on the shear displacement method and the principle of deforma

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Makaske, B., and W. Z. Hoek. "Reply to the comment by M.P. Hijma & K.M. Cohen on the paper by Van de Plassche et al. (2010)." Netherlands Journal of Geosciences - Geologie en Mijnbouw 90, no. 1 (2011): 55–57. http://dx.doi.org/10.1017/s0016774600000676.

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First of all, we want to stress that this reply to the comment by Hijma & Cohen on the paper by Van de Plassche et al. (2010) reflects our personal view and not necessarily the opinion of the first author of the paper under discussion, Orson van de Plassche. After a long career dedicated to sea-level research, Orson passed away on May 4, 2009, and left us with the Vlaardingen data set and his explicit wish to publish this material, which ultimately led to the Van de Plassche et al. (2010) paper. In the present paper we will: (1) give some background information on the Vlaardingen data set

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Liu, Hongbo, and Hanho Kim. "Ecological Footprint, Foreign Direct Investment, and Gross Domestic Production: Evidence of Belt & Road Initiative Countries." Sustainability 10, no. 10 (2018): 3527. http://dx.doi.org/10.3390/su10103527.

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This research is employed to examine the environmental issues embedded in Belt & Road Initiative (BRI), to be more specific: testify which of these hypotheses: Pollution Havens Hypothesis, Pollution Halo Hypothesis, Environmental Kuznets Curve is in accordance with the current development condition of BRI counties; whether there exists a bidirectional relationship among Ecological Footprint, Gross Domestic Production, Foreign Direct Investment (FDI) in Belt & Road Initiative countries. In this paper, Panel Vector Autoregression is utilized to analyze a dataset of 44-member countries in

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Peng, X., R. Horn, D. Deery, M. B. Kirkham, and J. Blackwell. "Influence of soil structure on the shrinkage behaviour of a soil irrigated with saline - sodic water." Soil Research 43, no. 4 (2005): 555. http://dx.doi.org/10.1071/sr04116.

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Soil structural properties of swelling/shrinking soils play an important role in assessing hydraulic properties. However, the effect of shrinkage/swelling processes on structure formation and strength especially in saline–sodic soils, such as a Typic Chromexert, has not yet been clarified. In this study, we investigate the changes in the shrinkage pattern after applying saline sewage water and use a 3-parameter sigmoidal curve model to fit its shrinkage data. Our aims were to determine the overall effect of sewage water application on soil structure and shrinkage processes after applying salin

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Gu, Xiang, Shang Ying Xie, and Shao Min Jia. "Analysis of Parameters Influence on Structure of Continuous Curved Bridge." Applied Mechanics and Materials 501-504 (January 2014): 1251–54. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1251.

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In the modern urban bridge projects,especially the urban interchange projects and the urban viaduct projects,the long-span curved bridge with the small radius is often inevitably used,considering the transportation under bridges,pipelines and aesthetic factors.This kind of long-span curved bridge with small radius was adopted on the south of Second Ring Road in Chendu of the project of "Two Expressways,Two Extended Roads,Two Ring Roads".The influence,which the change of the parameters on the structure had,was analyzed by using the finite element software of Midas Civil 2010.Then,the parameter

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Li, Jun, and Jian Zhou. "3-D Numerical Simulation for Large-Diameter Cast-In Situ Tubular Pile." Applied Mechanics and Materials 71-78 (July 2011): 4009–13. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.4009.

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Large-diameter cast-in-situ tubular pile (shorted as LTP) is a new, efficiency and energy saving, environmental protection pile and has been widely put into use in the foundation treatment. Using finite element method (FEM) to analyze and study the behavior of LTP is a very effective research method. This paper adopted the finite element computation software ANSYS 11.0 to conduct a 3-D numerical simulation for the LTP of a typical project. In this paper, it introduced how to realize the finite element model, specifically discussed how to select the appropriate key parameters and proposed an ef

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