No description available.

Helical anchors are a type of deep foundation element that can be installed quickly in almost any location and can accept the immediate application of operational loads. The use of helical anchors has expanded in recent decades from its established application in the power transmission industry to more traditional civil engineering applications such as residential construction, communication tower installations, and static and seismic structural retrofitting and reconstruction. Despite the wide range of helical anchor applications, few advances have been made in improving the understanding of their behavior. For example, existing helical anchor design methods, for cases where the anchors are loaded in uplift in cohesive soils, are based on the assumption that the soil above the helical plate is mobilized in a manner analogous to that beneath a deep foundation in bearing. An appropriate design method would acknowledge the effect of load directionality on the assumed failure mechanism. This thesis evaluates the existing cylindrical shear and individual plate bearing design methods for helical anchor capacity in uplift. Additionally, new capacity models are proposed to improve prediction accuracy and reduce prediction variability. A load test database of helical anchors loaded in tension is established from tests reported in the literature. The existing and proposed capacity models are compared to the capacities observed during loading tests using the statistical bias and its distribution. Load and Resistance Factor Design (LRFD) resistance factors are derived from closed-form solutions using First Order Second Moment (FOSM) reliability procedures. Finally, load-displacement models are developed through the evaluation of observed individual anchor plate breakout behavior and back-calculation of side shear capacity from load tests on multi-plate anchors. The new displacement models are compared to the load-displacement tests in the database. In general the comparisons indicate that the displacement-based models developed in this thesis provide a reasonable estimate of load-displacement behavior of helical anchors for service-level displacements. These findings provide engineers with new tools for design of helical anchor foundations. / Graduation date: 2012

Presented are case studies of two children as they make the transition from Mexican immigrant homes to kindergarten in an English-dominant school in the United States. In the first case, Victor adapts by keeping his attention focused on the teacher, which allows him to avoid disorientation and take on the role of exemplary student. In the second, Natalie adapts to kindergarten through her relationships with peers and the teacher. She often participates in class activities, however, without understanding the narrative or rationale behind them. Cross-case comparisons suggest that each student adapted in a way suited to his or her own needs and resources. The journey from disorientation to adaptation is described through the application of the holistic, systems-oriented, interactionalistic developmental approaches of Werner, Wapner, and Koizumi.

The role of military instructor was quite important in the early age of development in Taiwan.Military instructor dedicate much of their time and efforts for keeping safty and harmony inside school,but their social status has been queried by Taiwan society. It is important for education administration and military instructor to understand the career anchor. The purpose of this study are to find the relationship between recognition of changing in external environment,career anchor & job change intention-An example of military instructor in college.This research uses t test,single variance analysis,pearson analysis and step-by-step regression to study the relations of variance.800 questionnaires were released.419 are available.The results of this research result from the statistical analysis of three variables.They are recognition of changing in external environment,career anchor & job change intention. According to the analysis of the research data,we can get the findings of the study as follows¡G 1.The recognition for social support of organization has negative influence to turnover. 2.The recognition for development of organization in the future has negative influence to outbound after resign. The recognition for social surpport of organization has positive influence to outbound after resign. 3.The interaction between the recognition for social surpport of organization and anchor of service/challange has negative influence to turnover. 4.The interaction between the recognition for development of organization in the future and anchor of service location has negative influence to outbound after resign. It is hoped that this results will provide useful information to the policy and decision makers as well as education administrations on how to manage and improve the quality of a military instructor's service on a campus.

In Western, many television networks always expend largely to mold the star anchor for raising rating. They believe that the more attractive the anchor¡¦s image, the higher the rating. Since the first cable television station has established in Taiwan in 1993, the competition among television stations to attractive the audience become intense. The way to make up anchor¡¦s image is changed; we can read anchor¡¦s stories in newspaper in various ways. General speaking, the only one purpose for publicizing is rating. The main purpose of this study is in connection with news report and anchor¡¦s image. The experimental design is to figure out audiences¡¦ reactions between different newspaper contents (the love & marriage life news and the family life news) and the different aspects (the positive, the negative and the neutral reports). Therefore, the study will also focus on the relationship between anchor¡¦s image and audiences¡¦ television news choices. The study uses questionnaire to collect the data and infers the following results: 1.News report is remarkable to influence anchor¡¦s image. 2.The news report about anchor¡¦s love and marriage has the stronger influence with anchor¡¦s image than the news report about anchor¡¦s family life. 3.It influences with anchor¡¦s ¡§personal glamour¡¨, ¡§professional ability to cover news item¡¨, ¡§trusty¡¨ and ¡§authoritative¡¨ when audiences read the news report about anchor¡¦s love and marriage. 4.The audiences¡¦ imaging evaluations for the news anchor that come from¡¨ negative report¡¨ is apparently higher than other evaluations (which come) from positive and neutral reports. 5.There is the highly positive relationship between the imaging index of the news anchor and the intention of the audience.

This study presents an upper bound plastic limit analysis for predicting drag anchor trajectory and load capacity. The shank and fluke of the anchor are idealized as simple plates. The failure mechanism involves the motion of the anchor about a center of rotation, the coordinates of which are systematically optimized to determine the minimum load at the shackle. For a given anchor orientation, the direction of the shackle force is varied to establish a relationship between the magnitude and direction of the shackle load. Coupling this relationship to the Neubecker-Randolph anchor line solution produces a unique solution for the magnitude and orientation of the shackle force. The anchor is then advanced a small increment about the optimum center of rotation and the process is repeated. The upper bound method (UBM) provides a practical means to determine the trajectory of the anchor and the anchor load capacity at any point in the trajectory. To better understand of the anchor behavior, extensive parameter studies were carried out varying the properties of the anchor, anchor line, and soil. The UBM show good agreement with six full-scale tests covering several different anchor types and centrifuge model tests.

Carbon Fiber Reinforcement Polymer (CFRP) materials are widely used to strengthen reinforced concrete structures because they are light weight, have high strength, and are relatively easy to install. In strengthening applications, CFRP strips are typically attached to the concrete surface using epoxy resin with fibers oriented in the direction needing additional tensile strength. However, if CFRP strips rely exclusively on bond strength with concrete, only 40% to 50% of the CFRP tensile strength can be developed before debonding occurs. In order to fully develop the tensile strength of CFRP strips, some form of anchorage is needed. CFRP anchors can be applied with relative ease and have recently been shown to provide effective anchorage of CFRP strips to concrete members. In many cases, however, current anchorage details may resulting in fracture or failure of CFRP anchors prior to developing the full strength of CFRP strips. Many design parameters, the effects of which are not well understood, can affect the behavior and strength of CFRP anchors. Moreover, previous studies have demonstrated that the quality of installation can influence anchor strength substantially. The objectives of the study presented are to: 1) provide engineers with design guidelines for CFRP anchors, and 2) deliver a reliable test for controlling the quality of installation and materials of CFRP anchorage systems. In all, 39 tests on 6”×6”×24” rectangular concrete beams were conducted to study the influence of five parameters on CFRP anchor strength and effectiveness: 1) the width of the CFRP strip being developed, 2) the material ratio of CFRP anchor to CFRP strip, 3) the concrete strength, 4) the length/angle of anchor fan, and 5) the bond between CFRP strip and concrete (bonded/unbonded). The same tests also served to develop the test methodology for quality control of the CFRP anchorage system. Based on experimental results, guidelines for designing CFRP anchors are proposed. A test specimen and methodology are also proposed for qualifying CFRP materials and anchorage-system installations. A Finite Element (FE) formulation was selected to provide a computational tool that is suited for simulating the behavior of CFRP strips and CFRP anchors. The ability of the selected FE formulation to reproduce the effects on behavior of varying the anchor-material ratio, concrete strength, length of anchor fan, and bond conditions was investigated. Six FE simulations were built by adjusting simulation parameters and comparing results with six experimental tests. Comparisons between experimental and numerical results indicate that the proposed FE formulation and parameter selections reproduced load-deflection and local strain behaviors with high fidelity. / text

No description available.

Research assessed early stages of calcareous soil reclamation along the TMX-Anchor Loop pipeline through Jasper National Park. Calcareous soils are low in nutrients and highly prone to erosion after disturbances. Four sites were established in each of five calcareous soils, and divided into three pipeline right-of-way areas; work, trench and spoil. Ten amendment treatments, established within each right-of-way areaincluded a control and combinations of wood chips, fertilizer and compost with some plots having amendments incorporated. Wood chip treatments decreased availability of soil nutrients, with small plants contributing to high vegetation densities and low cover. Compost treatments increased soil nutrients and aided large plant establishment, creating lower plant densities and higher cover. Light application rates were most successful, with higher native plant densities and cover in relation to heavy application rates, which encouraged robust non-native plants. Pipeline right-of-way areas had no overall impact on early reclamation success. / Land Reclamation and Remediation

Software process improvement is often mentioned in today?s software marketplace. To be able to do process improvement, the organisation must have a process to improve from. These processes are commonly deviated from, and the PDU/PAY organisation at Ericsson AB has experienced that this happens too often within their organisation. The aim of this master thesis was to investigate why such deviations occur and how they could be prevented at PDU/PAY. A survey including a qualitative and a quantitative part was conducted at PDU/PAY to investigate this issue. The result was that processes were often deviated from due to lack of: management commitment, user involvement, synchronisation between processes, change management, anchoring of processes, and communication of processes. In addition to the conducted studies, an improvement proposal is given to the PDU/PAY organisation. This includes one organisational part and one part that is directly related to the actual work with processes. The proposal is intended to give PDU/PAY an essence of how to improve their work with their organisational processes.