Senior Recital: Cameron Kotovsky

Kemp Recital HallMarch 31, 2010Saturday Afternoon2:30 p.m

Learning and Problem Solving Under a Memory Load

A problem solving experiment is described where the difficulty Ss experienced in solving a panicular puzzle is manipulated using a dual task paradigm. Although Ss show impaired performance solving the puzzle the first time, performance improves considerably on a second trial and Ss are not impaired by a second trial memory load. In spite of the improvement in performance, Ss are unable to report virtually any information about the problem or their solution strategies. A model is presented that describes the pattern of performance across the levels of memory load and across the two trials. The theoretical implications of this model are discussed

HURRIYYA COLLECTION Equity and Inclusion: Cycling in Saudi Arabia & Muslim Female Traditional Dress; with a Focus on Professional & Pedestrian Cyclist

94 pagesIn many Muslim cultures women remain suppressed from basic human rights, how do we design for cultural needs to create a path of entry into sport? The understanding how cycling has held barriers to entry for women, in Muslim culture women remain suppressed of basic human rights, how do we design for cultural needs to create a path of entry into sport? Many issues that create this barrier are rooted in traditional garment of the Muslim faith and culture that are either legally restriction or systemic norms. The scope that will be further examined will look at both pedestrian and professional women cyclist needs with the lens of keeping with traditional and legal boundaries in Saudi Arabia. The target market will be aimed for women 18-35 years of age given the population and user growth in cycling. This will be done by unpacking Competitive Goals and Cultural Goals as a vehicle for women’s freedom and liberation via cycling

Design of a de-skewing system for automatic bill handling machines

Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1990.Includes bibliographical references (leaf 70).by Jack Kotovsky.B.S

HURRIYYA COLLECTION: Equity and Inclusion: Cycling in Saudi Arabia & Muslim Female Traditional Dress; with a Focus on Professional & Pedestrian Cyclist

94 pagesIn many Muslim cultures women remain suppressed from basic human rights, how do we design for cultural needs to create a path of entry into sport? The understanding how cycling has held barriers to entry for women, in Muslim culture women remain suppressed of basic human rights, how do we design for cultural needs to create a path of entry into sport? Many issues that create this barrier are rooted in traditional garment of the Muslim faith and culture that are either legally restriction or systemic norms. The scope that will be further examined will look at both pedestrian and professional women cyclist needs with the lens of keeping with traditional and legal boundaries in Saudi Arabia. The target market will be aimed for women 18-35 years of age given the population and user growth in cycling. This will be done by unpacking Competitive Goals and Cultural Goals as a vehicle for women’s freedom and liberation via cycling

Comparison and Mapping Facilitate Relation Discovery and Predication

Relational concepts play a central role in human perception and cognition, but little is known about how they are acquired. For example, how do we come to understand that physical force is a higher-order multiplicative relation between mass and acceleration, or that two circles are the same-shape in the same way that two squares are? A recent model of relational learning, DORA (Discovery of Relations by Analogy; Doumas, Hummel & Sandhofer, 2008), predicts that comparison and analogical mapping play a central role in the discovery and predication of novel higher-order relations. We report two experiments testing and confirming this prediction

Сенсор для измерения парциального давления кислорода в подкожных тканях

В роботі представлений сенсор для визначення парціального тиску кисню у підшкірних тканинах транскутанним методом, який застосовується для діагностики та контролю стану пацієнтів у процесі лікування. Показані особливості сенсору кисню для дослідження газообмінних процесів у біологічних об’єктах, проведено аналіз проблеми створення конструкції транскутанного сенсору кисню. Проаналізовано вплив конструктивних особливостей сенсорів для вимірювання вмісту кисню в підшкірних тканинах на метрологічні характеристики.In the paper presented by the sensor to determine the partial pressure of oxygen in the subcutaneous tissue transcutaneous method that is used for the diagnosis and monitoring of patients during treatment. The features of the oxygen sensor are shown to study the gas exchange processes in biological systems, analysis of the problem of creating designs transcutaneous sensor oxygen is carried out. The influence of structural features of sensors for measuring oxygen content in the subcutaneous tissue on the metrological characteristics is analysed.В работе представлен сенсор для определения парциального давления кислорода в подкожных тканях транскутанным методом, который применяется для диагностики и контроля состояния пациентов в процессе лечения. Показаны особенности сенсора кислорода для исследования газообменных процессов в биологических объектах, проведён анализ проблемы создания конструкции транскутанного сенсора кислорода. Проанализировано влияние конструктивных особенностей сенсоров для измерения содержимого кислорода в подкожных тканях на метрологические характеристики

Исследование влияния поляризации на метрологические характеристики сенсора кислорода

В роботі проводилося дослідження різних чинників, які впливають на метрологічні характеристики сенсору. Підвищення метрологічних характеристик приладів може бути досягнуто при використанні імпульсних методів поляризації електродів сенсорів. Новизна роботи полягає в застосуванні імпульсної поляризації сенсорів кисню та розробці нових методів обробки вихідних сигналів з метою підвищення метрологічних характеристик приладів. Досліджено кінетику процесів відновлення кисню на катодах сенсорів при поляризації імпульсною напругою. Застосування нових методів поляризації приводить до мінімального впливу роботи сенсора на рівноважні процеси в біологічних об’єктах, що підвищує точність вимірювання та забезпечує швидку реакцію приладу на зміну впливу зовнішніх чинників.The research of different factors influencing on the metrological characteristics of the sensor was conducted in the paper. The elevation of the devices’ metrological characteristics can be achieved by using pulsed methods of polarization of sensors’ electrodes. Novelty of work consists in application of pulse polarization of sensors of oxygen and development of new methods of processing of target signals for the purpose of increase of metrological characteristics of devices. Kinetics of the processes of oxygen reduction on sensors’ cathode under polarization of the pulse voltage is researched. Application of the new methods of polarization leads to minimal influence on the work of sensor on equilibrium processes in biological objects which increases accuracy of measurement and provides quick reaction of the device on the alteration of the effect of external factors.В работе проводились исследования различных факторов, влияющих на метрологические характеристики сенсора. Повышение метрологических характеристик приборов может быть достигнуто при использовании импульсных методов поляризации электродов сенсоров. Новизна работы заключается в применении импульсной поляризации сенсоров кислорода и разработке новых методов обработки выходных сигналов с целью повышения метрологических характеристик приборов. Исследована кинетика процессов восстановления кислорода на катодах сенсоров при поляризации импульсным напряжением. Применение новых методов поляризации приводит к минимальному влиянию работы сенсора на равновесные процессы в биологических объектах, что повышает точность измерения и обеспечивает быструю реакцию прибора на изменение воздействия внешних факторов

Real-Time Estimation of Pathological Tremor Parameters from Gyroscope Data

This paper presents a two stage algorithm for real-time estimation of instantaneous tremor parameters from gyroscope recordings. Gyroscopes possess the advantage of providing directly joint rotational speed, overcoming the limitations of traditional tremor recording based on accelerometers. The proposed algorithm first extracts tremor patterns from raw angular data, and afterwards estimates its instantaneous amplitude and frequency. Real-time separation of voluntary and tremorous motion relies on their different frequency contents, whereas tremor modelling is based on an adaptive LMS algorithm and a Kalman filter. Tremor parameters will be employed to drive a neuroprosthesis for tremor suppression based on biomechanical loading

Evaluation of ENTLN Performance Characteristics Based on the Ground Truth Natural and Rocket-Triggered Lightning Data Acquired in Florida

The performance characteristics of the Earth Networks Total Lightning Network (ENTLN) were evaluated by using as ground truth natural cloud-to-ground (CG) lightning data acquired at the Lightning Observatory in Gainesville (LOG) and rocket-triggered lightning data obtained at Camp Blanding (CB), Florida, in 2014 and 2015. Two ENTLN processors (data processing algorithms) were evaluated. The old processor (P2014) was put into use in June 2014 and the new one (P2015) has been operational since August 2015. Based on the natural-CG-lightning data set (219 flashes containing 608 strokes), the flash detection efficiency (DE), flash classification accuracy (CA), stroke DE, and stroke CA for the new processor were found to be 99%, 97%, 96%, and 91%, respectively, and the corresponding values for the old processor were 99%, 91%, 97%, and 68%. The stroke DE and stroke CA for first strokes are higher than those for subsequent strokes. Based on the rocket-triggered lightning data set (36 CG flashes containing 175 strokes), the flash DE, flash CA, stroke DE, and stroke CA for the new processor were found to be 100%, 97%, 97%, and 86%, respectively, while the corresponding values for the old processor were 100%, 92%, 97%, and 42%. The median values of location error and absolute peak current estimation error were 215 m and 15% for the new processor, and 205 m and 15% for the old processor. For both natural and triggered CG lightning, strokes with higher peak currents were more likely to be both detected and correctly classified by the ENTLN