scholarly journals KEY FACTORS AFFECTING THE DISCONNECTION OF EXPERIMENTAL AND MODEL CURVES IN MODELING P–N-TRANSITION ON PULSE BROADBAND SIGNALS

2021 ◽  
Author(s):  
Gleb Shevchenko ◽  
Eduard Semenov
Keyword(s):  
Transit Time ◽  
Series Resistance ◽  
Charge Carriers ◽  
Transient Processes ◽  
Key Factors ◽  
Static Approximation ◽  
Factors Affecting ◽  
Spice Model ◽  
Quasi Static Approximation ◽  
Factors Influencing

The article discusses the key factors influencing the discrepancy between the experimental and model curves when simulating a p – n junction on pulsed broadband signals. The reason for the discrepancy lies in the quasi-static representation of the forward and backward reconstruction of the p – n junction in the standard SPICE model. The quasi-static approximation does not take into account the transient processes in the p – n junction, which are associated with the transit time of minority charge carriers and the series resistance of losses.

Research on software synchronization method of real-time ethernet distributed motion control system

2019 ◽  
Vol 39 (5) ◽  
pp. 904-916
Author(s):  
Zhengyu Huang ◽  
Lingyu Chen ◽  
Lianchao Zhang ◽  
Shixun Fan ◽  
Dapeng Fan
Keyword(s):  
Control System ◽  
Real Time ◽  
Motion Control ◽  
Key Factors ◽  
Motion Control System ◽  
Content Type ◽  
Factors Affecting ◽  
Synchronization Method ◽  
Factors Influencing ◽  
Synchronization Performance

Purpose This paper aims to analyze the key factors influencing the synchronization performance of distributed motion control system and to improve the synchronization performance for peripherals control of this system. Design/methodology/approach This paper deals with the software synchronization problems of distributed motion control system based on real-time Ethernet. First, combined with communication and control tasks, the key factors affecting synchronization performance of system are analyzed. Then, aiming at key factors and considering the synchronization of system bus, protocol conversion and task scheduling, a software synchronization method based on CANopen protocol and real-time Ethernet is proposed. Finally, the feasibility of this method is verified by establishing distributed motion control system and testing the synchronization performance of terminal control signals of slaves. Findings Based on this method, the results show that the synchronization accuracy for peripherals control of all slaves could be about 100 ns. Practical implications This research provides high-precision synchronization method, which could lay a foundation for the application of distributed motion control system in the field of assembly automation, such as multi-axis assembly robots control. Originality/value In distributed motion control system, many factors affect the synchronization performance. At present, there is no synchronization method that could comprehensively consider these factors. This paper not only analyzes the key factors influencing the synchronization performance of system but also proposes a synchronization method. Therefore, the method proposed in this paper has certain theoretical value and engineering significance.

scholarly journals Factors affecting guardians’ decision making on clinic-based purchase of children’s spectacles in Nigeria

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254517
Author(s):  
Ving Fai Chan ◽  
Ai Chee Yong ◽  
Ciaran O’Neill ◽  
Christine Graham ◽  
Nathan Congdon ◽  
...  
Keyword(s):  
Urban Areas ◽  
Cross Sectional Study ◽  
Key Factors ◽  
Design Quality ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Cross River ◽  
Cross River State ◽  
Frame Design ◽  
Factors Influencing

Background This study aims to understand the key factors influencing guardians’ decisions when purchasing spectacles for their children in semi-urban and urban areas of Cross River State, Nigeria, where a spectacle cross-subsidisation scheme will be implemented. Methods This cross-sectional study was conducted among all consecutive guardians visiting the Calabar (urban), Ugep, Ikom and Ogoja (semi-urban) public eye clinics in Cross River State, southern Nigeria, from August 1 to October 31 2019, and whose children had significant refractive errors (myopia ≤-0.50D, hyperopia ≥1.50D, astigmatism >0.75D) and received spectacles. Guardians were interviewed using a questionnaire which included i) close-ended questions on reasons guardians choose to purchase spectacles for their children in eye clinics, ii) guardians’ perceptions of the quality and design of children’s current spectacle, iii) factors most heavily influencing their choice of spectacles for children, and iv) open-ended questions to seek guardians’ suggestions on how to improve the current spectacle range. Results All 137 eligible guardians (67.2% women [n = 92]) who visited the selected eye clinics participated in the study (response rate = 100%), with 109 (79.6%) from semi-urban and 28 (20.4%) attending urban clinics. Guardians from both urban and semi-urban clinics prioritised frame design, quality, and material as the main factors affecting their decision when purchasing spectacles for their children. Female guardians and those with higher incomes were both 1.5 times more likely to emphasise frame quality when describing selection criteria for purchasing spectacles for their children than male guardians (p = 0.01) or guardians earning less (p = 0.03). Conclusion Design, material, and frame quality are key factors influencing guardians when purchasing spectacles for their children in these setting and female guardians or those with higher income prioritise frame quality. This study could guide the planning and implementation of a novel cross-subsidisation scheme in Cross River State.

scholarly journals The Importance of Factors Affecting the Entry of Entrepreneurial Subjects to Organic Farming in the Czech Republic

2018 ◽  
Vol 66 (4) ◽  
pp. 1017-1024
Author(s):  
Hana Stojanová ◽  
Veronika Blašková ◽  
Michaela Lněničková
Keyword(s):  
Czech Republic ◽  
Organic Farming ◽  
Questionnaire Survey ◽  
Internal Communication ◽  
Primary Data ◽  
Key Factors ◽  
The Czech Republic ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Research Questions

The aim of the article is to identify the key factors influencing the entry of entrepreneurial subjects into the sphere of organic farming in the Czech Republic. Primary data for the research was obtained from a questionnaire survey carried out in 2016 through an internal communication system of the PRO BIO Association, comprising 481 operators in the field of organic farming in the Czech Republic. The research questions mainly concerned the reason for entering the sphere of organic farming, and what influenced this decision, the motivation of entrepreneurs to stay in organic farming and what could possibly be the reason for their departure from this sector of business. Another part of the research questions related to the knowledge about organic farming in the establishment of their business. a combination of factors that are important in deciding on entry into the industry and subsequent stay was found.

scholarly journals Factors Affecting Guardians' Decision Making on Clinic-based Purchase of Children's Spectacles in Nigeria

2021 ◽  
Author(s):  
Ving Fai Chan ◽  
Ai Chee Yong ◽  
Ciaran O'Neill ◽  
Christine Graham ◽  
Nathan Congdon ◽  
...  
Keyword(s):  
Urban Areas ◽  
Cross Sectional Study ◽  
Key Factors ◽  
Design Quality ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Cross River ◽  
Cross River State ◽  
Frame Design ◽  
Factors Influencing

Background: This study aims to understand the key factors influencing guardians' decisions when purchasing spectacles for their children in semi-urban and urban areas of Cross River State, Nigeria, where a spectacle cross-subsidisation scheme will be implemented. Methods: This cross-sectional study was conducted among all consecutive guardians visiting the Calabar (urban), Ugep, Ikom and Ogoja (semi-urban) public eye clinics in Cross River State, southern Nigeria, from August 1 to October 31 2019, and whose children had significant refractive errors (myopia ≤-0.50D, hyperopia ≥1.50D, astigmatism >0.75D) and received spectacles. Guardians were interviewed using a questionnaire which included i) close-ended questions on reasons guardians choose to purchase spectacles for their children in eye clinics, ii) guardians' perceptions of the quality and design of children's current spectacle, iii) factors most heavily influencing their choice of spectacles for children, and iv) open-ended questions to seek guardians' suggestions on how to improve the current spectacle range. Results: All 137 eligible guardians (n=92, 67.2% women) who visited the selected eye clinics participated in the study (response rate=100%), with 109 (79.6%) from semi-urban and 28 (20.4%) attending urban clinics. Guardians from both urban and semi-urban clinics prioritised frame design, quality, and material as the main factors affecting their decision when purchasing spectacles for their children. Female guardians and those with higher incomes were both 1.5 times more likely to emphasise frame quality when describing selection criteria for purchasing spectacles for their children than male guardians (p=0.01) or guardians earning less (p=0.03). Conclusion: Design, material, and frame quality are key factors influencing guardians when purchasing spectacles for their children in these setting and female guardians or those with higher income prioritise frame quality. This study could guide the planning and implementation of a novel cross-subsidisation scheme in Cross River State.

The healthy and sustainable bugs appetite: factors affecting entomophagy acceptance and adoption in Western food cultures

2020 ◽  
Vol 37 (3) ◽  
pp. 291-303 ◽  
Author(s):  
Wided Batat ◽  
Paula Peter
Keyword(s):  
Food Consumption ◽  
Well Being ◽  
Healthy Food ◽  
Food Level ◽  
Key Factors ◽  
Content Type ◽  
Factors Affecting ◽  
Novel Foods ◽  
Factors Influencing ◽  
Food Cultures

Purpose The purpose of this paper introduces entomophagy as an alternative food consumption (AFC) capable of contributing to food well-being (FWB) among Western consumers. Specifically, it provides a conceptual framework where key factors related to the acceptance and adoption of insects and insects based foods are identified. This paper takes a sociocultural, symbolic and contextual perspective to offer marketers and public policymakers a set of recommendations to promote entomophagy as a sustainable and healthy food practice to help consumers achieve their FWB. Design/methodology/approach In this paper, first, the authors review the literature on entomophagy from its rise to establishment in different food cultures by considering two main perspectives as follows: historical and sociocultural. Second, the authors review the salience of entomophagy as an important AFC capable of addressing sustainability and food health issues. Finally, the authors propose a framework in which the authors define key factors related to the acceptance and adoption of an insects-based diet in Western food cultures. The identification of these factors will help marketing and public policymakers to set up educational programs and strategies to promote entomophagy as a sustainable and healthy food practice within different Western food cultures, and thus, help consumers to achieve their FWB. Findings To identify the key factors influencing the acceptance of entomophagy as AFC, this paper provides a summary of the core motivators characterizing the acceptance and adoption of insects and insect-based foods in Western food cultures. Specifically, the authors identify the key factors influencing the acceptance of entomophagy as food consumption in Western food cultures and based on the extant literature by Batat et al. (2017) the authors provide an entomophagy framework that includes both idiocentric and allocentric factors considering the adoption of insects and insect-based foods in Western food cultures. Table I provides a summary. Social implications The authors believe entomophagy has the potential to generate societal benefits, as its appeal at the social (hunger in the world), environmental (reducing meat consumption and its impact on ecology) and health (less calories and nutritive food) level. Originality/value The research contributes to creating new knowledge that simulates debate among public policy and marketing scholars about entomophagy as a novel food in Western food cultures. The focus on key factors related to its acceptance and adoption of Western food cultures calls for empirical evidence to be tested in the marketplace using possibly different insect categories and other novel foods. Further, the framework should stimulate thinking about ways the authors can change consumers’ negative perceptions of disgusting food. Marketers and policymakers can achieve it by making their practices more efficient in terms of promoting sustainable AFC, as well as with efficient policy initiatives focused on supporting AFC, including the regulation of insect introduction.

scholarly journals The problem of insufficient debtor’s property during bankruptcy

2021 ◽  
Vol 118 ◽  
pp. 04006
Author(s):  
Igor Valerievich Sarnakov ◽  
Aleksandra Vadimovna Sarnakova ◽  
Igor Valentinovich Matveev ◽  
Natalya Alekseevna Matveeva ◽  
Ekaterina Sergeevna Yulova
Keyword(s):  
Key Factors ◽  
Factors Affecting ◽  
Scientific Methods ◽  
Factors Influencing ◽  
Scientific Analysis ◽  
Special Scientific ◽  
General Scientific ◽  
Key Participants ◽  
Degree Of Filling ◽  
Epidemiological Situation

The purpose of the study is to determine the key factors affecting the occurrence of insufficiency of debtors’ property in modern conditions, as well as to formulate the main directions of overcoming them. The methodological basis of the research was the dialectical method of scientific knowledge, general scientific (analysis, synthesis, modeling), and special scientific methods (formal and legal, statistical). The result of the work was the formulation and substantiation of tasks, the setting of which is necessary for further scientific research aimed at increasing the number of satisfied creditors’ claims. In addition, the authors identified the elements of the legislatively enshrined bankruptcy mechanism, which require changes to resolve the indicated problem. In particular, the measures proposed by the authors will make it possible to increase the degree of filling the bankruptcy estate by modernizing the procedure for selling the debtor’s property, stimulating a more active position of the arbitration administrator to challenge the debtor’s transactions, and bringing his controlling persons to subsidiary liability. The novelty of the work lies in the identification of key factors influencing in modern conditions the appearance of signs of insolvency, the quality, and quantity of debtors’ assets, the insufficiency of their bankruptcy estate. Among them, objective economic reasons, imperfection of bankruptcy legislation, dishonesty of key participants in legal relations related to bankruptcy (debtor, bankruptcy administrator, majority creditors), unwillingness to use the institution of bankruptcy rehabilitation mechanisms, and the epidemiological situation are highlighted.

Key Factors Affecting Construction Organizations' Acceptance of BIM: A Comparative Study

2016 ◽  
Author(s):  
Ying Hong ◽  
Samad M.E. Sepasgozar ◽  
Akbarnezhad Ali
Keyword(s):  
Organizational Support ◽  
Structural Equation ◽  
Influential Factors ◽  
Adoption Process ◽  
Key Factors ◽  
Factors Affecting ◽  
Face To Face ◽  
Perceived Needs ◽  
Factors Influencing ◽  
Construction Organizations

Governments and clients expect contractors to utilise BIM for construction and maintenance purposes at higher level of details. However, the process of BIM implementation is not as quick as it was expected and looks some contractors have not used BIM at all, or do not use it for some of projects. This justifies an urgent study on the process of BIM adoption to identify drivers and key factors influencing the contractorsäó» decision. Many studies focus on exploring BIM advances, its applications and individual matters of BIM acceptance. However, less effort has been made to investigate the impacts of organizationsäó» intention considering BIM performance value and their support for BIM implementation. Therefore, this study aims to identify factors that affect the BIM adoption process at the organization level regarding perceived needs, organizational support and ease of operation. Quantitative and qualitative information are collected through survey and face-to-face interview in Chinese and Australian construction organizations. Structural equation modelling analysis is used to quantify the relationships between influential factors and organizationäó»s intention towards BIM utilization. Analysis results indicate that äóÖBIM Awarenessäó», äóÖPerceived Needsäó», äóÖOrganizational Supportäó», and äóÖDown Timeäó» are four critical factors influencing BIM acceptance in Chinese and Australian construction organizations. Moreover, this study provides an insight of BIM adoption challenges in Chinese and Australian construction industries.

Study on Selective Depression of Pyrite during Copper Bioleaching

2007 ◽  
Vol 20-21 ◽  
pp. 172-173 ◽  
Author(s):  
Ren Man Ruan ◽  
Gui Ying Zhou ◽  
Jian Kang Wen
Keyword(s):  
Redox Potential ◽  
Culture Medium ◽  
Influencing Factor ◽  
Size Fraction ◽  
Key Factors ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Key Factor ◽  
Initial Ph ◽  
Leaching Efficiency

During Zijinshan copper heap bioleaching, pyrite was leached in plenty resulting in high ferric concentration in solution. This affected bioleaching and extraction processing greatly. The paper studied the factors influencing in the course of leaching of pyrite and a mixture of chalcocite and pyrite respectively. It focuses on the effect of the redox potential for copper bioleaching so as to find key factors affecting the dissolution difference between chalcocite and pyrite. The experiment results showed that redox potential is an important influencing factor in bioleaching. Copper and pyrite extents of the leaching process were 95% and 11% respectively and there is great dissolution difference between them at redox potential 700 mV (SHE). It is indicated that copper can be selectively bioleached by controlling redox potential of bioleaching. The conclusion will provide theoretic foundation on balance of acid and iron during bioleaching for copper of higher S/Cu ratio. A simple sulfide, pyrite and chalcocite, were selected as test minerals. The samples were obtained from rich mineral in Zijin Mine. The concentrated samples were milled to obtain the size fraction of 320 mesh percent of 90. Bacterium culture: 9K culture medium contained the following composition in kg/m3 distilled water: (NH4)2SO4, 3.0; K2HPO4·3H2O, 0.5; KCl, 0.1; MgSO4·7H2O, 0.5; Ca(NO3)2·2H2O, 0.01. The initial ferrous concentration was 9.0g/L, the initial pH was adjusted to 1.6, and the temperature set at 30°C. The rotation speed of shaking bed was 150r/min. A three-day-old inoculum previously grown in medium was used in bioleaching process. A 5% inoculum was added to give an initial bacteria concentration in the medium was (3-6)×107 cells/m3. The experiments investigated factors influencing bioleaching including ferrous concentration and redox potential during bioleaching. The extent Cu leached was over 90%. Cu leached velocity increased as redox potential turned higher. Cu leached velocity rapid increased at redox potential 700mV. During chalcocite and pyrite bioleaching, redox potential is important factor to influence of bioleaching rate and the results showed that pyrite and chalcocite bioleaching rate was correlated with redox potential. It is indicated that copper can be selectively bioleached during copper bioleaching by controlling redox potential of bioleaching. It can be concluded that: (1) Pyrite and chalcocite bioleaching rate was correlated with redox potential. Redox potential was shown to be the key factor affecting the dissolution difference between chalcocite and pyrite. (2) Chalcocite and pyrite leaching efficiency were 95% and 11% respectively and there is great dissolution difference between them at redox potential 700 mV (SHE). (3) It is indicated that copper can be selectively bioleached during copper bioleaching by controlling redox potential of bioleaching.

Factors affecting cane yield and commercial cane sugar in the Tully district

2002 ◽  
Vol 42 (4) ◽  
pp. 473 ◽  
Author(s):  
R. A. Lawes ◽  
K. E. Basford ◽  
L. M. McDonald ◽  
R. J. Lawn ◽  
M. K. Wegener
Keyword(s):  
Variance Components ◽  
Cane Sugar ◽  
Cane Yield ◽  
Key Factors ◽  
Factors Affecting ◽  
Commercial Cane Sugar ◽  
Factors Influencing ◽  
The Impact ◽  
Commercial Environment ◽  
Plant Crop

The Tully Sugar Mill has collected information about sugarcane supplied for crushing from every block in the mill district from 1970 to 1999. Data from 1988 to 1999 were analysed to understand the extent of the variation in cane yield per hectare and commercial cane sugar in the Tully mill area. The key factors influencing the variation in cane yield and commercial cane sugar in this commercial environment were identified and the variance components computed using a restricted maximum likelihood methodology. Cane yield was predominantly influenced by the year in which it was harvested, the month when the crop was ratooned (month of harvest in the previous year) and the farm of origin. These variables were relatively more important than variety, age of crop or crop class (plant crop, first ratoon through to fourth or older ratoons) and fallowing practice (fallow or ploughout-replant). The month-of-ratooning effect was relatively stable from year-to-year. Commercial cane sugar was influenced by the year of harvest, the month of harvest and their interaction, in that the influence of the month of harvest varied from year to year. Variety and farm differences were also significant but accounted for a much lower portion of the variation in commercial cane sugar. An empirical model was constructed from the key factors that influenced commercial cane sugar and cane yield to quantify their combined influence on sugar yield (t/ha). This may be used to assist mill personnel to predict their activities more accurately, for example to calculate the impact of a late finish to the current harvest season on the following year's crop.

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