Miracle-dz/UniFAR-FTUs huggingface dataset:
Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China

Abstract. Oxygenated organic molecules (OOMs) are the crucial intermediates linking volatile organic compounds (VOCs) to secondary organic aerosols (SOAs) in the atmosphere, but comprehensive understanding of the characteristics of OOMs and their formation from VOCs is still missing. Ambient observations of OOMs using recently developed mass spectrometry techniques are still limited, especially in polluted urban atmospheres where VOCs and oxidants are extremely variable and complex. Here, we investigate OOMs, measured by a nitrate-ion-based chemical ionization mass spectrometer at Nanjing in eastern China, through performing positive matrix factorization on binned mass spectra (binPMF). The binPMF analysis reveals three factors about anthropogenic VOC (AVOC) daytime chemistry, three isoprene-related factors, three factors about biogenic VOC (BVOC) nighttime chemistry, and three factors about nitrated phenols. All factors are influenced by NOx in different ways and to different extents. Over 1000 non-nitro molecules have been identified and then reconstructed from the selected solution of binPMF, and about 72 % of the total signals are contributed by nitrogen-containing OOMs, mostly regarded as organic nitrates formed through peroxy radicals terminated by nitric oxide or nitrate-radical-initiated oxidations. Moreover, multi-nitrates account for about 24 % of the total signals, indicating the significant presence of multiple generations, especially for isoprene (e.g., C5H10O8N2 and C5H9O10N3). Additionally, the distribution of OOM concentration on the carbon number confirms their precursors are driven by AVOCs mixed with enhanced BVOCs during summer. Our results highlight the decisive role of NOx in OOM formation in densely populated areas, and we encourage more studies on the dramatic interactions between anthropogenic and biogenic emissions.
Automação e competitividade: um estudo de caso italiano Automation and competitiveness: an italian case study

Este artigo descreve a experiencia de uma empresa italiana produtora de dispositivos medicos, em seus passos para a automatizacao da producao, a fim de alcancar uma melhor produtividade e tornar-se mais competitiva no mercado a fim de referencia. E apresentado um estudo de caso que envolve o processo automatizado de producao de uma valvula heparinica, desde a materia-prima para a obtencao ate o teste do produto final. E feita a consideracao sobre as vantagens competitivas obtidas pela adocao desta abordagem automatizada na empresa. A empresa foi bem sucedida ate agora na competicao com outras que operam em paises onde os custos salariais sao muito mais baixos do que no mercado italiano. Por meio da aprovacao automatica e semi-automatica de sistemas de producao, a firma podera cortar custos em mao-de-obra intensiva, ainda assim mantendo um alto padrao de qualidade, que e, juntamente com os custos, a mais crucial vantagem competitiva que uma empresa no setor medico deve garantir. A automacao trouxe a empresa um retorno financeiro significativo, e apesar de o investimento inicial ter sido substancial, o retorno do capital investido esta acontecendo conforme o esperado e mais investimentos estao agora a ser avaliados, assim como a mudanca para um lugar maior para acolher as novas maquinas que estao atualmente em construcao. Abstract . This paper describes the experience of an Italian medical device producing company, in its steps towards production automation for achieving better productivity and become more competitive on the reference market. A case study involving the automated process of producing a heparin valve is described, starting from the raw material to obtain and test the final product together with the consideration about the competitive advantages induced by adopting this automated approach. The firm so far succeeded in competing with other operators in countries where labour costs are much cheaper than in the Italian market. By adopting automated and semi-automated systems of production, the firm could cut costs on labour-intensive productions maintaining a high quality standard, which is, together with costs, the most crucial competitive advantage that a company in the medical sector has to guarantee. Automation brought significant financial returns to the company, and although the initial investments have been substantial, their payback is proceeding as expected and more investments are now being assessed, as the relocation to a bigger place for hosting the new machines that are under construction in this very moment.
Principles of successful reliability growth applications

This paper discusses the successful application of integrated reliability growth testing (IRGT) to the development of a large switching system, and demonstrates the results obtained using a case study. In usual applications of reliability growth testing, it is customary to dedicate development test items for a period of time and implement design changes to improve the reliability of a fielded product. In IRGT, reliability growth is demonstrated through design changes which occur during development testing. This paper identifies the lessons learned from this application of IRGT principles. The success of the IRGT program provided the Switching System Pilot Project with several benefits, including: timely analysis of failed items; accurate problem classification; timely and accurate laboratory failure rates; early identification of pattern failures; metrics demonstrating; achieved reliability growth during development testing. While the Switching System Pilot Project IRGT effort was largely successful, a configuration management problem area was identified in terms of providing adequate configuration data for reliability analysis. <<ETX>>
Recent Trends In Non-Conventional Space-Conditioning Systems

Abstract — Space-conditioning is a dominating energy-consuming service. The demand for heating/cooling/(de)humidification of indoor air is growing with increasing comfort expectations and cooling loads, due to global warming and buildings being designed to squeeze in maximum possible per unit area, owing to space constraints, especially in urban areas, which earlier grew horizontally and now, vertically. Conventional space-conditioning technologies exhibit several clear disadvantages including high energy consumption and electricity peak loads during operation and several negative environmental impacts, as they employ refrigerants. Thus, there is an increasing awareness around the world regarding energy-efficient, environment-friendly space-conditioning systems. The most common economic approach to space-conditioning in buildings is to keep it simplest possible, using locally and easily available materials and technology and leaving nature to do the rest. Various alternative methods of space conditioning have been / are being explored to develop energy-efficient, environment-friendly space-conditioning systems. Three main categories of Non-Conventional Space-Conditioning Systems can be identified as Solar-assisted air-conditioning systems, Earth Tube Heat Exchanger (ETHE) / Buried Tube Heat Exchanger (BPHE) based Space-Conditioning Systems and Other non-conventional space-conditioning systems. There can be varieties in each type depending upon the geographic and climatic conditions for which they are developed, the specific requirements of the system like, work-place, residential building, greenhouse, auditorium, etc. as well as principle on which they work and technology they make use of. This paper aims at studying recent trends in non-conventional space-conditioning systems, their role in energy conservation and their importance in the context of environmental hazards imposed by the conventional systems.
SISTEM PENGELOLAAN SAMPAH KECAMATAN SEMARANG TENGAH, KOTA SEMARANG

Solid waste management has become one of the major problems in developing countries followed by high population and economic growth, so that an integrated of solid waste management in terms technical and non-technical. Technically solid waste management are include the waste reduction and waste handling, is required like storage and separation, collection, transfer, and transport. While in terms of the non-technical are include institutional, sub system regulatory / legal, finance, and community participation. Central Semarang District is one of the districts Semarang City where the local waste management service has reached 100%, and service level reaches 82%. With a population density up to 11894org / km2, shows the density of population in the Central District of Semarang is too big. It is necessary for optimizing the level of solid waste management services with reduction and separation in the source to avoid the accumulation of garbage at the source or at the transfer site.
Detection of Sero-positive Anti- toxoplasmosis Anti-bodes IgG among Women in Baghdad Province

A total of 83 serum samples were randomly collected from different centers in Baghdad province, the results recorded in this study which started in July 2018 until the end of November 2018, by using one technique, method ELISA. The results were showed increased the percentage of seropositive anti- toxoplasmosis IgG antibodies at age groups 20 – 29 years, which were 23.9% among women infected with toxoplasmosis comparative with other age groups. Also showed increase the percentage of sero-positive anti- toxoplasmosis IgG Abs in urban which were 42.9% comparative with rural, which were 8.0%. Also occur increased significantly in percentage IgG Abs in serum of affected women with toxoplasmosis in first and second month from abortion period, which were respectively 17.8% and 16.0%. So increase these antibodies (Abs) in serum of infected women with this disease in 1 st trimester period comparative with other months. Therefore so it was necessary to use of early diagnosis for pregnant infected women with toxoplasmosis.
Cultura de condrócitos humanos para tratamento de lesões cartilaginosas* Human chondrocytes culture to treatement of cartilaginous injuries

: This work presents as objective to test the culture of chondrocytes for a not enzymatic method. For this, they had been isolated chondrocytes of costal cartilage human being for the method of primary explante, where the cells migrate of the cartilage and if they had adhered to the deep one in the bottle of culture. Later, for the method of indirect immunofluorescence it was dosed capacity of production of collagen type II for the isolated chondrocytes in order to evaluate the capacity of the cells to produce extracellular matrix to demonstrate the maintenance of the physiological capacities of the isolated cells in cullture.For bioengineering confides possibility to create cartilage in vitro to substitute one fabric injured, which is not capable of if regenerating by your own. The explante is a simple and cheap method that allows the isolation of human chondrocytes. One proved that the cultivated chondrocytes keep its phenotypic capacity to produce collagen type II. In this way, one proves that the isolated cells produce extracellular matrix typical of the fabric cartilaginous and are potentially usable for treatment of cartilaginous injuries.
Transforming Human Resource Organizations: a Field Study of Future Competency Requuierements

As human resource organizations transform, staff competency requirements after significantly. The question is: to what? The present study attempts to answer this question using data gathered from knowledgeable observers within a single firm and employing a unique future-oriented, role focused methodology. The results suggest a competency model with three parts: a relatively small number of core competencies applicable across the full range of human resource roles studied, an even smaller number of leverage competencies applicable to half or more (but not all) of the roles, and a much larger number of competencies that are role specific. Leverage and roles specific competencies are combined into competency profiles for the various roles which, in turn, suggests a number of implications for the selection, development, and career progression of tomorrow's human resource managers and professionals. While this particular competency model and its implications may be situation specific, the methodology developed during the study can be readily replicated in an abbreviated form in virtually any organization.
Dual-polarised patch antenna with wide bandwidth using electromagnetic feeds

A compact dual-polarised patch antenna with wide impedance bandwidth is proposed. Two different feed mechanisms are designed to excite a dual orthogonal linearly-polarised mode from a single radiating patch. One of the two modes is excited by an electrically-coupled L-shaped probe while the other is excited by a magnetically-coupled loop. The L-shaped probe consists of a copper pin and a coupled strip. The magnetic loop is comprised of a metal loop with a gap and an open-ended transmission line. The proposed antenna has been fabricated and measured. The impedance bandwidth of return loss less than -10 dB is 43.9- (2.4-3.75 GHz) and 32.8- (2.8-3.9 GHz) at port 1 and port 2, respectively. Due to the complementary nature of the electromagnetic feeding structure, the isolation between the two ports of the antenna is better than -23 dB. Moreover, the proposed antenna has a compact structure and stable gain over the operating band, thus making it suitable for use in 3.5 GHz WiMAX systems.
A socio-technical study of design management performance in a construction company

Mrs. Janthea Andersen, PhD Candidate, School of Engineering, University of Queensland Dr. Lesley Jolly, Anthropologist, School of Social Work and Applied Human Sciences, University of Queensland Mr. Michael Nycyk, PhD Candidate, School of Social Work and Applied Human Sciences, University of Queensland Prof. David Radcliffe, Professor of Engineering Education and Professional Development, School of Engineering, University of Queensland
Cumulative coupling in antenna arrays

This paper describes a cumulative coupling problem encountered in large, uniformly spaced, flat, phased arrays. Large impedance mismatch and radiation pattern degradation can occur at certain critical scan angles for which the radar steering phase advances match the antenna coupling delays. Many antenna elements may then contribute in-phase, to the active impedance mismatch of an antenna element in the interior of a large array. Several phased arrays have exhibited scanning "blind" regions which appear to be a consequence of this phenomena. The mechanism is described here and equations are given relating the critical scan angle to antenna coupling coefficients.
Design criteria of the Spheral SolarTM cell

The process sequence for producing 10% efficient Spheral SolarTM cells from upgraded metallurgical grade silicon spheres bonded in aluminum foil was presented at a recent conference.1 Certain design criteria were used to generate the process schedule and these criteria will be described in this paper. Further discussion regarding pilot line equipment and operation will be reserved for a future publication.
Free for All: How Linux and the Free Software Movement Undercut the High-Tech Titans

From the Publisher: Linux and the Free Software Movement began its siege on the seemingly unshakeable Microsoft in 1999. But the story began as far back as 1984 when Richard Stallman, a prolific code writer, founded the Free Software Movement in an effort to break the bureaucratic stranglehold he saw forming in the computer industry. Enter Linus Torvalds in the early '90s, a coding genius and a long-time Stallman disciple, who became the master of Linux code. The result: a marketplace where the best software solutions win and monolithic computer Goliaths are faced with the proverbial David. Free for All tells the fascinating story of how a simple idea provided a framework that organized thousands of open code users and revolutionized the nature of business. It also tells how a group of passionate people have dedicated their lives to creating software that's easierand cheaperthan Microsoft's to use.
Silviculture: Concepts and Applications

Part 1 Introduction and foundations: silviculture as an orderly discipline the silvicultural system logging as a tool of silviculture. Part 2 Regeneration techniques: concepts of regeneration site preparation planning for artificial regeneration nursery production and tree planting regeneration from seed, including direct seeding reproduction methods and their implications selection system and its application uneven-aged reproduction methods growth and development in selection system stands clearcutting shelterwood and seed-tree methods early stand development release cuttings thinning and its effect upon stand development methods of thinning thinning regimes in the even-aged silvicultural system managing quality in forest stands stand protection and health management improvement, salvage and sanitation cuttings partial cutting outside the silvicultural system coppice silviculture adjusting to administrative demands.
Assessment for Learning- putting it into practice

The starting point of this book was the realisation that research studies worldwide provide hard evidence that development of formative assessment raises students’ test scores. The significant improvement in the achievements of the students in this project confirms this research, while providing teachers, teacher trainers, school heads and others leaders with ideas and advice for improving formative assessment in the classroom. Assessment for Learning is based on a two-year project involving thirty-six teachers in schools in Medway and Oxfordshire. After a brief review of the research background and of the project itself, successive chapters describe the specific practices which teachers found fruitful and the underlying ideas about learning that these developments illustrate. Later chapters discuss the problems that teachers encountered when implementing the new practices in their classroom and give guidance for school management and LEAs about promoting and supporting the changes. This book offers valuable insights into assessment for learning as teachers describe in their own words how they turned the ideas into practical action in their schools.
Record high performance modules based on screen printed MWT solar cells

This paper describes an integrated approach towards the realisation of modules based on rear contacted solar cells joining experiences in cell and module manufacturing. While research is ongoing on novel interconnection schemes, from an analysis of different possibilities, a methodology was selected that allows the introduction of the interconnection approach within a production line with minor investments. To support the suggested methodology a number of structural changes were required in the Metallisation Wrap Through cells. However, as these were limited to the layout of the contact pattern, no changes to the established cell process were needed except for the introduction of new screens. Based on the developed simple planar interconnection technology, a number of modules was manufactured with large area (100cm/sup 2/) multi-crystalline rear contacted solar cells demonstrating the electrical added value of rear contacted solar cells and attaining power densities of over 145 W/m/sup 2/.
Ubicación única de fallas en sistemas de distribución por medio de zonas con SVM

Este articulo presenta una nueva metodologia para localizar fallas en sistemas de distribucion por medio de una tecnica de inteligencia artificial -Maquinas de Soporte Vectorial- (SVM). El metodo de localizacion de la falla se basa en la division del sistema electrico en zonas, acotando cada vez mas la region donde esta se encuentra. La ventaja sobre los metodos clasicos de distancia consiste en una unica estimacion del sitio de falla para sistemas ramificados. Un ejemplo de aplicacion con el modelo de un sistema real muestra que la metodologia propuesta es altamente efectiva para resolver el problema, donde se consideran variaciones de carga de ±40 % de la carga nominal.
An extended adaptive structuration theory for the determinants of virtual team success

Virtual team represents an organizational form which can revolutionize the workplace and provide organizations with unprecedented levels of flexibility and responsiveness. Since nineties, virtual teams have been subjected to exhaustive research, mostly focused on the causal relationship between single or multiple constructs and the success variables of virtual teams, such as performance and satisfaction. There have been quite a few reviews on virtual teams which have provided a good overview of the state of virtual team research. These reviews have identified significant constructs in virtual team research, summarized and assessed their findings, proposed frameworks demonstrating the state of present research and posed some challenges and research questions which should be answered by future research on virtual teams. However, existing reviews are too general in terms of portraying relationships, such that their frameworks delineate links among categories of constructs as against among individual constructs themselves. None of the extant reviews identify explicit relationships among the most significant constructs of virtual teams and the research on virtual team performance is still equivocal. An understanding of such explicit relationships between the most significant constructs of virtual teams can get us a deeper insight into how virtual teams achieve effectiveness. Thus, there is a need to structure the current empirical research in order to understand the key direct and indirect drivers of virtual team performance. This study, based on a qualitative review of existing literature on virtual teams, identifies key drivers of virtual team effectiveness and develops a conceptual research framework with 9 propositions linking the identified drivers. It goes beyond the generalized models, such as, AST and Input-Process-Output models and develops a new model EAST (extended adaptive structuration theory) by extending the tenets of AST. This study uses adaptive structuration theory to organize the literature on virtual teams into three broad categories; viz. structural dimensions, social interaction and outcomes, and comes up with hypotheses and research questions linking the above categories.