Search

There have been three times more attacks to naval ships using sea mines than all other forms combined. Sea mines have always been viewed upon as underhanded and unchivalrous, yet they provide a weaker navy the capability to stall and damage a vastly superior navy. Utilizing unmanned sensors to detect sea mines is the goal of the navy for the future. Computer-aided detection (CAD) of sea mines is much faster and more consistent than a human operator, yet it is not currently being utilized by any of our mine countermeasure assets. Although there are many studies that have incorporated computer aided detection and classification algorithms with sonar imagery for mine warfare, few have used Light Detection and Ranging (LIDAR). During an amphibious assault scenario the ability to land assets quickly and mitigate risk is vital to the success. This thesis analyzes Rapid Overt Aerial Reconnaissance data from an Office of Naval Research experiment by Fort Walton Beach, FL. The CAD algorithm that was developed consistently detects sea mines in LIDAR data while having a manageable false alarm rate.

The purpose of this thesis is to perform a cost-effectiveness analysis on proposals, submitted by vendors, for a telecommunication system. This thesis will be used as a guide in the decision-making process of choosing the most cost-effective system for the Bachelor Officers Quarters of the Naval Postgraduate School. In addition to cost-effectiveness, this study includes a discussion of the analysis criteria, a review of the Statement of Work and an evaluation of the lease purchase decision.

The purpose of this thesis is to perform a cost-effectiveness analysis on proposals, submitted by vendors, for a telecommunication system. This thesis will be used as a guide in the decision-making process of choosing the most cost-effective system for the Bachelor Officers Quarters of the Naval Postgraduate School. In addition to cost-effectivness, this study includes a discussion of the analysis criteria, a review of the Statement of Work and an evaluation of the lease/purchase decision.

溶離液として水を用い, イオン交換反応を利用した導電率増大効果を用いる導電率検出イオン排除クロマトグラフィーによるアンモニウムイオンの高感度定量法を開発した. 本法は, OH-型陰イオン交換樹脂分離カラムによりアンモニウムイオンを水酸化アンモニウムとして共存する強塩基の陽イオンからイオン排除によって分離後, 水酸化アンモニウムを第1導電率増大カラム(Cl-型陰イオン交換樹脂)及び第2導電率増大カラム(H+型陽イオン交換樹脂)を各々用いて最終的に高い当量導電率を有する塩酸に変換し, 導電率検出するものである. 本法は従来法に比べ, 約11倍の検出感度の増大と, 広範な検量線の直線性を有する. 本法は, 回分式による生物学的硝化-脱窒素処理工程に対して応用でき, 本処理工程におけるアンモニウムイオンの生物分解挙動が明らかとなった., Ammonium ion in biological nitrification-denitrification process with batchwise treatment was determined by ion exclusion chromatography using water as an eluent with ion exchange enhancement of conductivity. Ammonium ion was selectively separated by ion exclusion from alkali metal and alkaline earth metal cations. The detection sensitivity of the ammonium ion was improved about 11-fold with two ion exchange enhancement columns inserted in series between the separation column packed with OH--form anion-exchange resin and the detector. The first enhancement column packed with Cl--form anion-exchange resin converts ammonium hydroxide to ammonium chloride and the second enhancement column packed with H+-form cation-exchange resin converts ammonium chloride to hydrogen chloride of much higher limiting equivalent conductivity. The calibration curve of ammonium ion detected as hydrogen chloride was linear over the concentration range of 10 to 100 ppm. The method provides a fast, selective, and sensitivity way to determine the ammonium ion in biological nitrification-denitrification process water.

This is an investigation of the solution of the continuity equation modeled for the F2 region of the ionosphere. Since a numerical method is used to obtain the solution on a digital computer, variations of the model and their effects on the solution for electron densities are all investigated. Several current suggestions for explanations of some of the ionospheric anomalies are studied in this manner. (Author)

There have been three times more attacks to naval ships using sea mines than all other forms combined. Sea mines have always been viewed upon as underhanded and unchivalrous, yet they provide a weaker navy the capability to stall and damage a vastly superior navy. Utilizing unmanned sensors to detect sea mines is the goal of the navy for the future. Computer-aided detection (CAD) of sea mines is much faster and more consistent than a human operator, yet it is not currently being utilized by any of our mine countermeasure assets. Although there are many studies that have incorporated computer aided detection and classification algorithms with sonar imagery for mine warfare, few have used Light Detection and Ranging (LIDAR). During an amphibious assault scenario the ability to land assets quickly and mitigate risk is vital to the success. This thesis analyzes Rapid Overt Aerial Reconnaissance data from an Office of Naval Research experiment by Fort Walton Beach, FL. The CAD algorithm that was developed consistently detects sea mines in LIDAR data while having a manageable false alarm rate., http://archive.org/details/computeraideddet1094538932, Lieutenant, United States Navy, Approved for public release; distribution is unlimited.

The purpose of this thesis is to perform a cost-effectiveness analysis on proposals, submitted by vendors, for a telecommunication system. This thesis will be used as a guide in the decision-making process of choosing the most cost-effective system for the Bachelor Officers Quarters of the Naval Postgraduate School. In addition to cost-effectivness, this study includes a discussion of the analysis criteria, a review of the Statement of Work and an evaluation of the lease/purchase decision., http://archive.org/details/telecommunicatio1094523455, Captain, United States Marine Corps, Approved for public release; distribution is unlimited.