DATA ANALYSIS AND PREDICTIVE MODEL GENERATION FOR DELAYS IN NAVY CONSTRUCTION PROJECTS

Currently, Naval Facilities Engineering Command (NAVFAC) records all data on the process from application to awarding of Military Construction (MILCON) projects. This data is not utilized to increase poor performance and lack of timely results on the completion of MILCON projects. The poor performance leads to delays in deliveries to important facilities and delays in warship deployment and degradation of warfighting capabilities. NAVFAC currently has personnel investigating methods on improving the project timelines to minimize delays. Majority of the delays occur during the pre-award phase of the projects with the post-award phase causing additional delays. The purpose of this thesis is to analyze projects across multiple fiscal years from project initiation to contract award. To accomplish this, data was acquired from NAVFAC’s eProjects database and analyzed using machine learning techniques as well as statistical analysis to determine a correlation between the possible causes and the delays that occurred to develop a predictive model for analyzing future project contract delays. This collection will potentially assist NAVFAC in focusing onto ongoing improvements. Reducing the delays in project awarding will further the process for reducing the overall time required to complete MILCON projects. This will shorten the amount of time that ships are in the shipyard further enhancing the Navy’s undersea warfare capabilities with more submarines and other assets deployed.Lieutenant, United States NavyApproved for public release. Distribution is unlimited

Viscous Shock Layer Method to Predict Communication Blackout during Re-entry Phase

Communication blackout generally occurs during the re-entry at high velocities through the atmosphere. Air ahead of the re-entry vehicle dissociates and then ionises, leading to the production of electrons. These electrons may reflect or attenuate the communication signals. Electron densities with plasma frequency exceeding the communication frequency lead to blackout. Electron density is a function of the body shape, velocity and altitude. The viscous shock layer method is used to predict the electron density, and thereby the plasma frequency for various configurations. This method is successfully implemented for analytic and non-analytic geometry configurations available in the literature. The electron densities computed for the RAM-C configuration agree well with the flight results. The onset of blackout during the re-entry phase is also predicted reasonably well by this method. The method performs well at high altitudes, where nonequilibrium conditions prevail.Defence Science Journal, 2011, 61(4), pp.364-369, DOI:http://dx.doi.org/10.14429/dsj.61.108

Brittle Deformation in an Ancient Accretionary Prism Setting: Lopez Structural Complex, San Juan Islands, NW Washington

Fault-bounded slices of allochthonous Paleozoic to Mesozoic bedrock of the San Juan Islands in northwest Washington provide a locality in which to study terrane translation and ductile and brittle deformation in an accretionary wedge setting, as well as the factors involved in preservation of blueschist-facies terranes. This study contributes to understanding of the tectonic evolution of the Lopez Structural Complex, a major Late Cretaceous terrane-bounding fault zone in the San Juan Thrust System. Structural study is combined with X-ray diffraction and fluid inclusion analysis to constrain the relative timing, kinematics, and P-T conditions of fabric formation and post-fabric brittle deformation in the Lopez Structural Complex. Deformation is characterized by multiple generations of ductile and brittle structures. After formation of a regional flattening fabric by two processes, pressure solution and localized bi-directional shearing, the area was crosscut by brittle structures including: 1) early strike-slip structures related to bi-directional northwest/southeast shear, 2) southwest-vergent thrusts, 3) extension veins and normal faults related to northwest/southeast extension, and 4) conjugate strike-slip structures also related to northwest/southeast extension. The presence of comparable structures in the eastern San Juan Islands (Lamb and Schermer, 2003) and adjacent to the Lopez Structural Complex indicates this sequence of brittle deformation is widespread in the San Juan nappes. X-ray diffraction and petrographic observations of vein material identify aragonite- and prehnite-bearing veins associated with thrust, normal, and strike-slip structures, although most of the latest strike-slip faults contain only prehnite and calcite. High pressure minerals constrain brittle deformation to have occurred at greater than ~ 20 km depth and at most ~ 200° C. Fluid inclusion analyses of aqueous and methane-bearing inclusions in vein quartz are in agreement with low temperature conditions after vein formation and tentatively suggest rapid exhumation to shallow depths under near isothermal conditions. Sustained high-pressure - low-temperature conditions and the preservation of widespread aragonite are possible only if structures formed in an accretionary prism during active subduction. Therefore, meter-scale brittle structures in rocks of the Lopez Structural Complex record a pattern of internal wedge deformation at depth or early during uplift of the San Juan nappes. The sequence observed is generally consistent with internal orogen-normal contraction and vertical thickening followed by vertical thinning and lateral along-strike extension. Possible mechanisms for brittle deformation include a change in the angle or magnitude of plate convergence vectors, a large underplating or accretion event, or the collision of the Cretaceous prism with the margin of Wrangellia

\u3ci\u3eAnnwyn Castle\u3c/i\u3e / \u3ci\u3eDragon Sol\u3c/i\u3e / \u3ci\u3eEye of Miranda\u3c/i\u3e

Annwyn Castle: The castle turns and turns westerly, gleaming westerly, all glass and radiating rainbows. Dragon Sol: the golden blood of gods pounds in your core, searing sea of molten force Eye of Miranda: dark shepherdess of epsilon whose lightless watch and silent cyclic tre

Film Boiling Heat Transfer From An Oscillating Sphere

An experimental investigation has been undertaken to determine the effect of oscillation of the heat transfer surface on turbulent film boiling heat transfer. A transient technique was used to calculate the heat flux from copper spheres of 1 in., 3/4 in., and 1/2 in. dia. In all tests, saturated liquid nitrogen at atmospheric pressure was used as the boiling fluid. The data obtained were found to be in good agreement with published theory at zero frequency. The range of frequencies studied was from zero to approximately 12 cps at peak-to-peak amplitudes of 2 in. and 1 in., i.e., at amplitude-to-diameter ratios of 1.00, 1.34, 2.00, 2.67, and 4.00. It was determined that oscillation of the heat transfer surface considerably increases the heal flux for a given temperature difference over that for natural convection film boiling. The results were correlated with a maximum deviation of +35, -17 percent. The correlation equation showed that the Nusselt number was proportional to the vibrational Froude number to the 2/3 power. Tests were conducted with spheres having a corroded surface, a glass-bead-peened surface and a Teflon-coated surface. The results show that the turbulent film boiling from an oscillating sphere is independent of the condition of the heat transfer surface over the range of frequencies and amplitudes tested. © 1969 by ASME

An examination of training on the VertiMax Resisted Jumping Device for improvements in lower body power in highly trained college athletes

Training to develop superior muscular power has become a key component to most progressive sport conditioning programs. Conventional resistance training, plyometrics, and speed/agility modalities have all been employed in an effort to realize superlative combinations of training stimuli. New training devices such as the VertiMax resisted jump trainer are marketed as a means of improving lower body reactive power. The purpose of this study was to evaluate the effectiveness of the VertiMax, in combination with traditional training modalities, for improvements in lower body power among highly trained athletes. Forty men and women Division I collegiate athletes representing the sports of baseball, basketball, soccer, gymnastics, and track completed a 12-week mixed-methods training program. Two groups were constructed with both groups performing the same conventional resistance training and strength training exercises. The training control group performed traditional plyometric exercises while the experimental group performed similar loaded jump training on the VertiMax. Lower body power was measured before and after the training program by the TENDO FiTROdyne Powerlizer and statistically compared for differences between groups. Data analyses identified a significant (p < 0.05) and meaningful difference between power development among the 2 groups, with the VertiMax eliciting a greater treatment effect (effect size = 0.54) over conventional resistance and plyometric training alone (effect size = 0.09). These data convincingly demonstrate that the VertiMax represents an effective strategy for developing lower body power among trained college athletes, when combined with traditional strength and conditioning approaches

Hubungan Keikutsertaan Organisasi Dengan Regulasi Diri Pada Remaja : Studi Kasus Di SMA N 2 Ngawi

Background : Adolescent is development process from children to adult. Self regulation is one of component adolescent development. The school environment is one of the factors that influence self regulation, in this environment student can follow the activities of the organization.Aim : The aim of this study was to determine the relationship between the organization's participation and self regulation in adolescents.Methods : The method of this study was an observational research with cross sectional approach, began from March to July 2015. Subjects were the students in SMA N 2 Ngawi. SRQ (Self Regulation Questionnaire) and the organization's questionnaire validating before were used to collect data. Data was analyzed by Chi-square testResults : The number of respondents were 80 students, consist of 46 respondent who actively participated in the organization and 34 respondents who are not actively participated in the organization. Students who actively participated in the organization of 21.7% has a good self regulation, 65.3% intermediate and 13% low, while students who do not actively participated in the organization of 8.8% has a good self regulation, 53% intermediate and 38.2% low. The value of probability the relationship between the participation of organizations and self regulation was 0,021 (p &lt;0.05).Conclusion : There is a significant correlation between an organization's participation in self-regulation

Integrating a humanities and business education course: Issues, problems, and benefits

Since the mid-nineteenth century, higher education, in particular community colleges, has seen an increased demand to serve the training needs of business and industry. Today, business and industry insist their prospective employees be trained in both job-specific skills (hard) and general skills (soft). These soft skills are defined as management, leadership, teamwork, interpersonal communications, problem-solving, decision-making, and adaptability to change skills (Georges, 1988). However, Stephen Wehrenberg simply described soft skills as being purely mental functions (Wehrenberg, 1986). Hence, traditional occupational education methods of teaching only job-specific skills such as keyboarding, drafting, and auto mechanics are being challenged to include soft skills