Search results for "LoRa"
showing 10 items of 2828 documents
Design Space Exploration for a Custom VLIW Architecture: Direct Photo Printer Hardware Setting Using VEX Compiler
2008
Increasingly more computing power is demanded for contemporary applications such as multimedia, 3D visualization, and telecommunication. This paper presents a design space exploration (DSE) experience for an embedded VLIW processor that allows finding out the best architecture for given application. The proposed method has been implemented and tested using an image processing chain for direct photo printer. Our results show a considerable improvement in hardware cost and performance. After the best architecture is identified, we applied a technique to optimize the code in VEX system that uses ?inlining? function in order to reduce execution time.
Achieving agility and quality in product development -an empirical study of hardware startups
2020
Context: Startups aim at scaling their business, often by developing innovative products with limited human and financial resources. The development of software products in the startup context is known as opportunistic, agility-driven, and with high tolerance for technical debt. The special context of hardware startups calls for a better understanding of state-of-the-practice of hardware startups’ activities. Objective: This study aimed to identify whether and how startups can achieve product quality while maintaining focus on agility. Method: We conducted an exploratory study with 13 hardware startups, collecting data through semi-structured interviews and analysis of documentation. We pro…
Maids and housekeepers at luxury hotels: life stories in hotels of Buenos Aires, Argentina
2021
The tourism industry evinces a high turnover of staff which needs further hard training and organisation. Broadly speaking, the service quality seems to be directly proportional to excessive working hours, which are accompanied by less-paid wages and hard working conditions. This paper interrogates furtherly on the (real) motivations of maid and housekeepers who are professionally educated to serve high purchasing power tourists. The research focuses on the needs, socio-economic background of maid and housekeepers as well as the pro and cons of their daily tasks. Based on the life story and story-telling and as the main method of study, we conduct exploratory research -sampled by 8 in-depth…
Tooth discoloration and internal bleaching after the use of ledermix paste with various bleaching agents ? An in vitro study
2018
Background To assess the reversal of discolouration caused by Ledermix using various bleaching agents. Material and Methods Twenty six extracted human mandibular premolars were taken and divided into four groups. Six teeth were divided into three each which are taken as positive and negative controls. The remaining twenty are divided into two groups (n=10). After conventional access preparation, the Ledermix paste was sealed in the pulp chamber for twelve weeks. The paste was removed by a rinse with sodium hypochlorite (NaOCl). Then the pulp chamber was sealed with a mixture of Sodium perborate and distilled water for group 1 and group 2 was sealed with Sodium tetraborate for 1 to 12 weeks.…
Stakeholder Engagement, Corporate Social Responsibility and Integrated Reporting: An Exploratory Study
2013
There is increasing interest in integrated reporting that includes the company's financial, governance, environmental, and social performance. For this reason, the main objective of this investigation is to study why companies are producing integrated reporting, paying special attention to the links with the assurance of the corporate social responsibility (CSR) report. Based on 7144 worldwide observations, this study identifies the determinants of integrated reporting through a logistic regression model. Our results point out that the likelihood of disclosing an integrated report is positively associated with having the CSR report assured, year, size and supplement industry. Next, we teste…
Employees' perceptions of high-performance work systems and innovative behaviour: The role of exploratory learning
2017
Abstract This paper analyses the influence of employees' perceptions of high-performance work systems (HPWSs) on employees' exploratory learning and innovative behaviour. Furthermore, the mediating role of exploratory learning in this relationship has also been studied. To achieve these objectives, a quantitative analysis was conducted with a sample of 304 researchers from the Spanish public sector. Results showed the relevance of employees' perceptions of HPWSs in promoting exploratory learning and employees' innovative behaviour. The mediating role of exploratory learning in the relationship was assessed. The paper mentions the importance of workers' perceptions on the implementation of H…
Cost consciousness: conceptual development from a management accounting perspective
2015
Purpose – This paper aims to take note of the need to better understand cost consciousness from a management accounting perspective and serves as an exploratory study striving to analyze how the notion has been addressed by management accounting scholars. Design/methodology/approach – This paper presents the findings of a thorough literature review identifying the drivers, interpretations, definitions and results which management accounting scholars have associated with cost consciousness. Findings – This paper has synthesized the definitions and interpretations by considering their conceptual broadness and the subjects that cost consciousness characterizes. In addition, various potential …
Sedation in allergic rhinitis is caused by the condition and not by antihistamine treatment
1996
Sedation is regarded as a common side-effect of most H1-antihistamines. This view must be accepted, yet can hardly be assessed under treatment of allergic disorders. Since central sedative potency is hard to evaluate, different methods of measurement have been introduced in the four phases of clinical investigation. While tests of high complexity in early trials can detect true central effects, they seem to have the disadvantage of not taking into consideration the important interactions of drugs with the disorder. Therefore, we used a visual analog scale (VAS) as an instrument to demonstrate sedative effects in five clinical studies carried out between 1989 and 1994 with a total number of …
A Novel Instrument to Measure the Multidimensional Structure of Professional Agency
2018
This study aimed to construct and validate a quantitative measurement instrument to determine the structure of professional agency in working life. Empirical data (N = 589) were collected via a web-based, theoretically informed questionnaire, within the professional domains of education, healthcare, rescue services, and information technology. The questionnaire items incorporated theoretically based dimensions of professional agency. The structure of professional agency was initially analysed via exploratory factor analysis. Thereafter, using exploratory structural equation modelling, the structure of professional agency was investigated with a view to confirmation and validation. The resul…
Floral Diversity and Pollen Transfer Mechanisms in Bird-pollinated Salvia Species
2007
† Background and Aims Bird-pollinated (ornithophilous) Salvia species (sages) transfer pollen either by means of a staminal lever mechanism or by immovable stamens. As the distribution of the two modes within the genus is not known, we present a survey of all ornithophilous sages. The main focus is given to floral diversity especially with respect to functional lever morphology. Thereby the hypothesis is tested that, due to a pollinator shift from bees to birds, the lever mechanism became unnecessary. † Methods To get a general idea about the diversity of pollen transfer mechanisms, 186 ornithophilous Salvia species were classified according to the functional morphology of the stamen and th…