Minuteman 2 launched small satellite

The goal of LEOSat Industries' Spring 1994 project was to design a small satellite that has a strong technology demonstration or scientific justification and incorporates a high level of student involvement. The satellite is to be launched into low earth orbit by the converted Minuteman 2 satellite launcher designed by Minotaur Designs, Inc. in 1993. The launch vehicle shroud was modified to a height of 90 inches, a diameter of 48 inches at the bottom and 35 inches at the top for a total volume of 85 cubic feet. The maximum allowable mass of the payload is about 1100 lb., depending on the launch site, orbit altitude, and inclination. The satellite designed by LEOSat Industries is TerraSat, a remote-sensing satellite that will provide information for use in space-based earth studies. It will consist of infrared and ultraviolet/visible sensors similar to the SDI-developed sensors being tested on Clementine. The sensors will be mounted on the Defense Systems, Inc. Standard Satellite-1 spacecraft bus. LEOSat has planned for two satellites orbiting the Earth with trajectories similar to that of LANDSAT 5. The semi-major axis is 7080 kilometers, the eccentricity is 0, and the inclination is 98.2 degrees. The estimated mass of TerraSat is 145 kilograms and the estimated volume is 1.8 cubic meters. The estimated cost of TerraSat is $13.7 million. The projected length of time from assembly of the sensors to launch of the spacecraft is 13 months

KM Maturity Factors Affecting High Performance in Universities

This paper aims to measure Knowledge Management Maturity (KMM) in the universities to determine the impact of knowledge management on high performance. This study was applied on Al-Quds Open University in Gaza strip, Palestine. Asian productivity organization model was applied to measure KMM. Second dimension which assess high performance was developed by the authors. The controlled sample was (306). Several statistical tools were used for data analysis and hypotheses testing, including reliability Correlation using Cronbach’s alpha, “ANOVA”, Simple Linear Regression and Step Wise Regression.The overall findings of the current study suggest that KMM is suitable for measuring high performance. KMM assessment shows that maturity level is in level three. Findings also support the main hypothesis and it is sub- hypotheses. The most important factors effecting high performance are: Processes, KM leadership, People, KM Outcomes and Learning and Innovation. Furthermore the current study is unique by the virtue of its nature, scope and way of implied investigation, as it is the first comparative study in the universities of Palestine explores the status of KMM using the Asian productivity Model

The Role of Technology in Music Education: a Survey of Computer Usage in Teaching Music in Colleges of Education in The Volta Region, Ghana

The study sought to find out the role of computer technology in music education in Colleges of Education in the Volta Region of Ghana. It aimed at surveying the use of computer technology for teaching music and exploring the instructional prospects for computer technology usage in music in Colleges of Education. The study employed Rogers’ Diffusion Innovation theory and descriptive survey research method. Data was collected from the respondents using questionnaire, interview, and observation. The study revealed that even though about 90% of the music tutors have good academic qualification and over five years teaching experience, lack of competence in handling computer technology in teaching music among some music tutors and incoherent ICT initiatives hindered proper application of computer technology in the field of music education. It is however envisaged that increasing access and coherent computer technology initiatives will be paramount for the teaching of music in the Colleges of Education

Application features of the surface laser scanning technology when solving the main tasks of surveying support for reclamation

Purpose. Study of the effectiveness of topographical survey methods when solving the main tasks of surveying support for the disturbed lands reclamation. Methods. Comparative analysis of the topographical survey results, which was conducted with the use of electronic total station and a surface laser scanner during reclamation. The heap leaching dump at the Belaya Gorka Site of the Rodnikovoye Field has been chosen as an object for topographical survey. To compare adequately, the electronic total station and the laser scanner were chosen of the same accuracy class. The determination of the values accuracy of the area and volume of an object during a tacheometric survey depends on the discreteness of surveying pickets. In practice, the density of the pickets’ arrangement is limited by the working capacity of the surveying crew, which, as a rule, is several hundred pickets per day, and the density is two or three survey points per 100 m2 of the object. To determine the dependence of measurement accuracy on the pickets’ density during the tacheometric survey, it was carried out at four different scales, with the distance between the pickets from 5 to 25 meters. The density of points (pickets) of a surface laser scanner, which was used in the studies, is 500 points per 100 m2 of survey area. Findings. Based on the results of the tacheometric survey and surface laser scanning of the heap leaching dump, two variants of the topographic maps of the surface and its smoothed digital model have been obtained. Detailed surface laser scanning at an increased level in comparison with a tacheometric survey improves the topographic map accuracy. Improved accuracy when determining the volume on a survey scale of 1:500 – 1:2000 is 12%. Originality. A new concept for topographical surveying is proposed when solving the surveying problems of reclaiming the disturbed lands, based on the methods of surface laser scanning. Practical implications. Use of the surface laser scanning technology makes possible to obtain the prompt three-dimensional visualization of the surveyed area, to ensure high accuracy and degree of detailed survey, to increase the working capacity and field surveying conditions, to solve the main tasks of surveying support of the disturbed lands reclamation in the shortest possible time and with the required surveying quality.Мета. Дослідження ефективності методів топографічної зйомки при вирішенні основних завдань маркшейдерського забезпечення рекультивації порушених земель. Методика. Порівняльний аналіз результатів топографічної зйомки, проведених із використанням електронного тахеометра та наземного лазерного сканера при рекультивації. Об’єктом топографічної зйомки обраний відвал купчастого вилуговування ділянки Біла Гірка родовища Родникове. Для коректності порівняння, електронний тахеометр і лазерний сканер обрані одного класу точності. Визначення точності значення площі та об’єму об’єкта при тахеометричній зйомці залежить від дискретності знімальних пікетів. На практиці щільність розміщення пікетів обмежена продуктивністю знімальної бригади, яка, як правило, становить кілька сотень пікетів у день, при цьому щільність становить дві або три знімальні точки на 100 м2 площі об’єкта. Для визначення залежності точності вимірювання при тахеометричній зйомці від щільності пікетів, вона проводилася у чотирьох різних масштабах, з відстанню між пікетами від 5 до 25 метрів. Щільність точок (пікетів) наземного лазерного сканера, використаного в дослідженнях, становить 500 точок на 100 м2 площі зйомки. Результати. За результатами тахеометричної зйомки і наземного лазерного сканування відвалу купчастого вилуговування отримані два варіанти планів топографічної поверхні і згладжена її цифрова модель. Підвищена деталізація при наземному лазерному сканування у порівнянні з тахеометричною зйомкою підвищує точність топографічного плану. Підвищення точності визначення обсягу при масштабі зйомки 1:500 – 1:2000 становить 12%. Наукова новизна. Запропоновано нову концепцію проведення топографічної зйомки при вирішенні маркшейдерських завдань рекультивації порушених земель, що заснована на методах наземного лазерного сканування. Практична значимість. Застосування технології наземного лазерного сканування дозволяє отримати миттєву тривимірну візуалізацію території, забезпечити високу точність і ступінь деталізації зйомки, підвищити продуктивність праці та умови польових робіт при зйомці, вирішити основні завдання маркшейдерського забезпечення рекультивації порушених земель у найкоротші терміни і з необхідною якістю зйомки.Цель. Исследование эффективности методов топографической съемки при решении основных задач маркшейдерского обеспечения рекультивации нарушенных земель. Методика. Сравнительный анализ результатов топографической съемки, проведенных с использованием электронного тахеометра и наземного лазерного сканера при рекультивации. Объектом топографической съемки выбран отвал кучного выщелачивания участка Белая Горка месторождения Родниковое. Для корректности сравнения, электронный тахеометр и лазерный сканер выбраны одного класса точности. Определение точности значения площади и объема объекта при тахеометрической съемке зависит от дискретности съемочных пикетов. На практике плотность расстановки пикетов ограничена производительностью съемочной бригады, которая, как правило, составляет несколько сотен пикетов в день, при этом плотность составляет две или три съемочные точки на 100 м2 площади объекта. Для определения зависимости точности измерения при тахеометрической съемке от плотности пикетов, она проводилась в четырех различных масштабах, с расстоянием между пикетами от 5 до 25 метров. Плотность точек (пикетов) наземного лазерного сканера, использованного в исследованиях, составляет 500 точек на 100 м2 площади съемки. Результаты. По результатам тахеометрической съемки и наземного лазерного сканирования отвала кучного выщелачивания получены два варианта планов топографической поверхности и сглаженная ее цифровая модель. Повышенная детализация при наземном лазерном сканирования в сравнении с тахеометрической съемкой повышает точность топографического плана. Повышение точности определения объема при масштабе съемки 1:500 – 1:2000 составляет 12%. Научная новизна. Предложена новая концепция по проведению топографической съемки при решении маркшейдерских задач рекультивации нарушенных земель, основанная на методах наземного лазерного сканирования. Практическая значимость. Применение технологии наземного лазерного сканирования позволяет получить мгновенную трехмерную визуализацию снимаемой территории, обеспечить высокую точность и степень детализации съемки, повысить производительность труда и условия полевых работ при съемке, решить основные задачи маркшейдерского обеспечения рекультивации нарушенных земель в кратчайшие сроки и с требуемым качеством съемки.This paper was prepared within the framework of the Grant Financing Project of the Ministry of Education and Science of the Republic of Kazakhstan 2018/АРО5131591

A Survey on Multisensor Fusion and Consensus Filtering for Sensor Networks

Multisensor fusion and consensus filtering are two fascinating subjects in the research of sensor networks. In this survey, we will cover both classic results and recent advances developed in these two topics. First, we recall some important results in the development ofmultisensor fusion technology. Particularly, we pay great attention to the fusion with unknown correlations, which ubiquitously exist in most of distributed filtering problems. Next, we give a systematic review on several widely used consensus filtering approaches. Furthermore, some latest progress on multisensor fusion and consensus filtering is also presented. Finally, conclusions are drawn and several potential future research directions are outlined.the Royal Society of the UK, the National Natural Science Foundation of China under Grants 61329301, 61374039, 61304010, 11301118, and 61573246, the Hujiang Foundation of China under Grants C14002 and D15009, the Alexander von Humboldt Foundation of Germany, and the Innovation Fund Project for Graduate Student of Shanghai under Grant JWCXSL140

Bibliometric studies on single journals: a review

This paper covers a total of 82 bibliometric studies on single journals (62 studies cover unique titles) published between 1998 and 2008 grouped into the following fields; Arts, Humanities and Social Sciences (12 items); Medical and Health Sciences (19 items); Sciences and Technology (30 items) and Library and Information Sciences (21 items). Under each field the studies are described in accordance to their geographical location in the following order, United Kingdom, United States and Americana, Europe, Asia (India, Africa and Malaysia). For each study, elements described are (a) the journal’s publication characteristics and indexation information; (b) the objectives; (c) the sampling and bibliometric measures used; and (d) the results observed. A list of journal titles studied is appended. The results show that (a)bibliometric studies cover journals in various fields; (b) there are several revisits of some journals which are considered important; (c) Asian and African contributions is high (41.4 of total studies; 43.5 covering unique titles), United States (30.4 of total; 31.0 on unique titles), Europe (18.2 of total and 14.5 on unique titles) and the United Kingdom (10 of total and 11 on unique titles); (d) a high number of bibliometrists are Indians and as such coverage of Indian journals is high (28 of total studies; 30.6 of unique titles); and (e) the quality of the journals and their importance either nationally or internationally are inferred from their indexation status

Robot Autonomy for Surgery

Autonomous surgery involves having surgical tasks performed by a robot operating under its own will, with partial or no human involvement. There are several important advantages of automation in surgery, which include increasing precision of care due to sub-millimeter robot control, real-time utilization of biosignals for interventional care, improvements to surgical efficiency and execution, and computer-aided guidance under various medical imaging and sensing modalities. While these methods may displace some tasks of surgical teams and individual surgeons, they also present new capabilities in interventions that are too difficult or go beyond the skills of a human. In this chapter, we provide an overview of robot autonomy in commercial use and in research, and present some of the challenges faced in developing autonomous surgical robots

The determinants of web-based investor relations activities by companies operating in emerging economies : the case of Jordan

Peer reviewedPublisher PD

The antecedents of e-learning adoption within Italian corporate universities: A comparative case study

The implementation of Information and Communication Technologies (ICT) in business education appears to be influenced by a number of organizational issues, such as culture and technological sophistication. However, extant research has had very little to say about the antecedents that shape the adoption and diffusion of ICT across companies. In order to shed light on the phenomenon under investigation, this paper presents a comparative case study between five Italian companies that have instituted a corporate university. By distinguishing companies in typical cases and deviant cases with regard to the extensive use of e-learning technologies, our findings provide some useful insights about the antecedents that make companies more or less prone to employ the new frontiers of technology in their CUs