Search results for "relationship"
showing 10 items of 3616 documents
Closure to “Simple Relationships for the Optimal Design of Paired Drip Laterals on Uniform Slopes” by Giorgio Baiamonte
2016
The author appreciates the interest of the discussers of the paper “Simple Relationships for the Optimal Design of Paired Drip Laterals on Uniform Slopes” and wants to express his gratitude to Joaquin Monserrat and Javier Barragan for the opportunity to discuss the issues they raised. In their discussion, they questioned the use of analytical relationships to derive the design variables that are required for the optimal design of paired sloped laterals. This paper detected the Best Manifold Position (BMP = 0.24) to design optimal paired laterals and, as the discussers mentioned, allows the methodology introduced by Baiamonte et al. (2015) to be applied. Thus, the issues they questioned and …
Explicit relationships for optimal designing rectangular microirrigation units on uniform slopes: The IRRILAB software application
2018
Abstract Many attempts have been made to provide easy tools for designing microirrigation units. However, most of these have dealt with numerical solutions, which require many trial-and-error attempts and time-consuming iterations, performed by applying the basic hydraulic equations from the manifold to the end of both the downhill and the uphill sides of the laterals. Recently, analytical procedures to optimally design paired drip laterals on uniform slopes were proposed, providing readily obtainable results and energy saving. Although these analytical solutions can be practically applied, they only make it possible to design a one-lateral unit; to be really interesting for practical appli…
Simple Relationships for the Optimal Design of Paired Drip Laterals on Uniform Slopes
2016
Microirrigation plants, if properly designed, allow water use efficiency to be optimized and quite high values of emission uniformity to be obtained in the field. It is known that disposing paired laterals, in which two distribution pipes extend in opposite directions from a common manifold, contribute to increasing water use efficiency. Recently, an analytical procedure has been proposed to optimally design paired drip laterals on uniform slopes under the assumption of neglect: (1) the variations of the emitters’ flow rate along the lateral, and (2) the local losses due to the emitters’ insertions. However, this procedure is not readily usable for every geometric and hydraulic characterist…
Traffic simulation models calibration using speed–density relationship: An automated procedure based on genetic algorithm
2016
Calibration of traffic models.Calibration as optimization problem.Use of genetic algorithm. This paper presents the first results of a research which applied a genetic algorithm to calibrate a microscopic traffic simulation model based on speed-density relationships. A large set of traffic data collected from the A22 Freeway, Italy, was used and a comparison was performed between the field measurements and the simulation outputs obtained for a test freeway segment by using the Aimsun microscopic simulator.The calibration was formulated as an optimization problem to be solved based on a genetic algorithm; the objective function was defined in order to minimize the differences between the sim…
Dosing fentanyl buccal tablet for breakthrough cancer pain: dose titration versus proportional doses.
2012
Abstract OBJECTIVES: The aim of this study was to compare the efficacy and safety of doses of fentanyl buccal tablet (FBT) proportional to doses of opioids used for background analgesia versus dose titration starting with the minimal dose for the management of breakthrough cancer pain (BTcP). METHODS: A total of 82 cancer patients with BTcP who were receiving strong opioids in doses of at least 60 mg of oral morphine equivalents and having acceptable background analgesia, were selected for a multicenter unblinded study. Forty-one patients were randomized to receive FBT in doses proportional to the daily opioid doses for four consecutive episodes of BTcP (group P). Forty-one patients underwe…
The buffering effect of coping strategies in the relationship between job insecurity and employee well-being
2012
The modern labour market features job insecurity (JI) as an unavoidable stressor. This study considers the influence of personal coping strategies by combining the conservation of resources with spillover theory. Do coping strategies buffer the negative effects of JI on well-being (work engagement, marital satisfaction and emotional energy at work and home)? A cybernetic coping scale distinguishes five coping strategies and a survey of 2764 Finnish employees reveals that changing the situation and symptom reduction buffer the negative effect of JI on emotional energy at work and home, respectively. Devaluation and accommodation have buffering tendencies in relation to work engagement and m…
Employee‐organization relationship in collective entrepreneurship: an overview
2010
PurposeThe purpose of this paper is to add new theoretical insights on the employee‐organization relationship (EOR) in the context of corporate entrepreneurship (CE), specifically in collective entrepreneurship.Design/methodology/approachThe paper presents a brief overview of the content of each of the articles included in this special issue.FindingsIn the last decades, the study of the EOR has become an integral part of the literature as an approach aimed to provide the theoretical foundations to understanding the employee and employer perspectives to the exchange. Also, the greater complex environment and the higher level of innovativeness have pushed firms to become more entrepreneurial …
Community Relationships and the Practice of Public Relations in Higher Education
2007
In 2004 the Finnish Universities Act was amended to include a third strand as an essential part of research and teaching. This paper focuses on relationship building to explore whether this approach would be helpful in developing university–community relationships and educational public relations. By means of a dialogic community relations model the paper suggests that different forms of social interaction and communication strategies are needed in relationship‐building, maintenance and enhancement; but, when aiming at collaborative community relationships, priority should be given to the development of the two dialogic strategies.
Perceived employability: Investigating outcomes among involuntary and voluntary temporary employees compared to permanent employees
2011
PurposeThe purpose of the present study is to examine how perceived employability relates to job exhaustion, psychological symptoms and self‐rated job performance in involuntary and voluntary temporary employees compared to permanent employees.Design/methodology/approachThe study is based on a cross‐sectional design using a sample of university teachers and researchers (n=1,014) from two Finnish universities. Of the sample, 40 percent (n=408) are permanent employees, 49 percent (n=495) involuntary and 11 percent (n=111) voluntary temporary employees. Most respondents (54 percent) have education above a Master's degree, the average age is 43 years, and 58 percent are women.FindingsThe result…
The logic of the gift and the bonding value: a new perspective for business management
2011
PurposeThis paper aims to conceptualize business relationships so as to include in these dimensions of both gift and gratuity, to develop the concept of “bonding value”, and to offer some ideas for the use of this within firms.Design/methodology/approachThe paper analyses the concept of “bonding value”, distinguishing it from the concepts of “exchange value” and “use value” that are normally used in business, and attempts to investigate its practical implications.FindingsThe paper shows how evaluating both the relationships within the organization and between firm and stakeholders in terms of “bonding value” can have effects on the economic, organizational and social aspects of a firm's act…