Research of Line Contact Rotate-Milling about Space Ruled Surface

2013 ◽  
Vol 456 ◽  
pp. 3-9
Author(s):  
De Xing Zheng ◽  
Bin Wang
Keyword(s):  
Poor Quality ◽  
Contact Length ◽  
Machining Accuracy ◽  
Line Contact ◽  
Differential Analysis ◽  
Factors Affecting ◽  
Movement Function ◽  
Main Factors ◽  
Theory Error

For there are small contact area between tool and workpiece, low machining precision, and poor quality of face in point-milling, point-milling and line contact milling used in processing are analyzed on this paper. Line contact rotate-milling using which the workpiece is processed as the profile laws is shown, the realization method of line contact rotate-milling is discussed in milling various surfaces, the movement to processing the various surfaces is studied, and the movement function is analyzed. Next, the factors affecting the machining accuracy are analyzed, and the main factors - the geometric errors are analyzed and integrated. Then the error model is created in differential analysis,the output accuracy is analyzed in Matlab. To point-milling, the line contact rotate-milling is the method of processing based on face. In this processing, the way of no profile theory-error is taken, the tool contact length with the workpiece is increased, axis as few as possible and even single-axis is taken, and the accuracy of processing is improved.

scholarly journals Significant influencing factors and practical solutions in improvement of clinical nursing services: a Delphi study

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Sarieh Poortaghi ◽  
Abbas Ebadi ◽  
Mahvash Salsali ◽  
Afsaneh Raiesifar ◽  
Nayyereh Davoudi ◽  
...  
Keyword(s):  
Delphi Study ◽  
Poor Quality ◽  
Clinical Services ◽  
Policy Makers ◽  
Factors Affecting ◽  
Nursing Managers ◽  
Clinical Nursing ◽  
Communication Program ◽  
Nursing Services

Abstract Background Clinical services evaluation with specific indicators are very helpful to identify improvable points. This study was conducted to analyze the factors affecting the quality of clinical nursing services and offer practical solutions for accreditation of clinical nursing services. Methods The present study was conducted using Delphi method with two rounds. At the beginning of the study a questionnaire was prepared using results of another project (clinical nursing services audit). This questionnaire was sent to 47 nursing and accreditation professionals. After the first round, causes and solutions were categorized. Then participants were asked to comment on the significance of each strategy on the prepared questionnaire. Results In the first round of Delphi in response to the question about the main causes and solutions of low quality of nursing clinical services, 394 causes and 212 solutions were mentioned by the participants. In the second round, considering moralists and specialization in the selection of nursing managers, staffing according to workload and attendance in comprehensive exam after graduation and before entering clinical fields attained the most importance. Conclusion Mismatch of human resources with workload and lack of clarity with regard to duties have maximum correlation with poor quality of care. Organizational structure and communication program categories gained the highest and lowest importance respectively. This information could be used by nursing managers and policy makers to plan programs in order to improve the quality of clinical nursing services.

scholarly journals Multifactorial parametric model for assessing and making organizational decisions to ensure the quality of construction

2019 ◽  
Vol 97 ◽  
pp. 03038
Author(s):  
Pavel Zhuravlev ◽  
Evgeniy Bachus ◽  
Irina Markova
Keyword(s):  
Parametric Model ◽  
Assessment Model ◽  
Regulatory Requirements ◽  
Factors Affecting ◽  
Construction Period ◽  
Regulatory Documents ◽  
Full Compliance ◽  
Main Factors ◽  
Capital Construction

As noted by a number of experts in the field of the quality of construction of capital construction objects, at present there are no industry-specific methods for assessing the quality of construction and installation works in construction. The quality assessment and acceptance of capital construction objects is carried out according to the criterion of compliance with the requirements established in the project documentation, the working documentation prepared on its basis and the requirements established in the regulatory documents. It should be noted that the more complex the object, the larger the construction volume, the longer the construction period of the object and the harder it is to achieve full compliance of the object with the established requirements due to the lack of a methodology for choosing organizational decisions, as well as changing regulatory requirements, technological variability, errors.The current situation necessitated the development of an assessment model and the adoption of organizational decisions to ensure the quality of construction. This article highlights and discusses the main factors affecting the quality of organizational decisions. A system for assessing the level of quality assurance of construction is proposed, taking into account the quality of organizational decisions and the main factors cited.

scholarly journals Investigation on Preoperative Interview of Standardized Training for Anesthesiologists

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Yifan Xue ◽  
Rui Xia ◽  
Dan Qiao
Keyword(s):  
Questionnaire Survey ◽  
Evaluation System ◽  
Current Situation ◽  
Hebei Province ◽  
Basic Knowledge ◽  
Online Questionnaire ◽  
Factors Affecting ◽  
Know How ◽  
Main Factors

Objective — To investigate the current situation of preoperative interview of standardized training anesthesiologists in Hebei province by online questionnaire. To understand the current situation of preoperative interview of standardized training anesthesiologists and screen out the main factors affecting the preoperative interview of standardized training anesthesiologists. Methods — The questionnaire is designed by the authors and is distributed through Wechat Mini Program. Questionnaire survey was conducted among standardized training anesthesiologists in several training bases in Hebei Province. Results — 313 valid questionnaires were collected. The standardized training anesthesiologists had problems such as lack of basic knowledge, lack of teacher's evaluation on their preoperative interview, and don't know how to improve. In addition, the number of preoperative interviews in neurosurgery and cardiothoracic surgery was relatively small, and the ability of preoperative interviews in specialized surgery was insufficient. Conclusion — To improve the quality of preoperative interviews, standardized training anesthesiologists need to improve the training and evaluation system and enhance teaching.

scholarly journals FORMATION OF RECREATIONAL AREAS BY USING DISTURBED URBAN LANDS

2021 ◽  
Vol 6 (12) ◽  
pp. 73-83
Author(s):  
R. Galdin ◽  
N. Aleinikova ◽  
T. Yarmosh
Keyword(s):  
Aesthetic Perception ◽  
Factors Affecting ◽  
Forest Park ◽  
Environmental Situation ◽  
Urban Territories ◽  
Main Factors ◽  
Relationship Of ◽  
The Relationship ◽  
The City

The article is devoted to the problems of disturbed lands that are part of urban territories, the need for reclamation and the creation of recreational spaces based on them. There are a large number of quarries on the territory of the Belgorod region, many of which are no longer functioning and they need to be transformed. The work in this direction entails an improvement in the environmental situation, increases the quality of the urban environment and makes these objects attractive for investment. The authors consider the main factors affecting the reclamation of the territory, analyze the types of soil and identify the relationship of geodesy with the architectural component of reclamation, present foreign and domestic experience in solving problems related to disturbed lands, comply a table of the main quarries of the Belgorod region in order to identify features characteristic of this region. As a result of the research, proposals and methods are put forward, taking into account regional peculiarities, for the reclamation of a chalk quarry in order to create a recreational space and then integrate it into the forest park framework in Belgorod, which will lead to an improvement in the environmental situation and aesthetic perception of the city as a whole.

scholarly journals A Study of Mathematics Teachers’ Motivation towards Teaching in Brunei Darussalam

2018 ◽  
Vol 8 (2) ◽  
pp. 18 ◽  
Author(s):  
Hjh Naziah Sahat ◽  
Adina Yantiaryanie Hj A. Abd. Rahman ◽  
Khairul Amilin Tengah ◽  
Hui-Chuan Li ◽  
Nor Azura Abdullah
Keyword(s):  
Mathematics Teachers ◽  
Teacher Motivation ◽  
Online Questionnaire ◽  
Government Schools ◽  
Factors Affecting ◽  
Brunei Darussalam ◽  
Quality Of Teaching ◽  
Main Factors ◽  
The Government

Many factors contribute to the success of students’ academic performance. Admittedly, quality of teaching is one of those factors. In this study, based on the related literature on teacher motivation, six main factors affecting teachers’ motivation towards teaching are identified. Accordingly, an online questionnaire was designed by the authors. In total, 207 (40 males and 167 females) mathematics teachers from primary, secondary and sixth-form government schools in Brunei Darussalam randomly volunteered to respond to this questionnaire. The findings from this study have implications for understanding the extent to which factors may motivate or demotivate teachers to teach. The present research provided education stakeholders with important information to ponder over the motivational factors of mathematics teachers in the government schools. The results from our study also suggested that good interaction and collaboration between teachers can help boost teachers’ motivation to teach.

Structural Analysis of Factors Influencing Quality Innovation Capability in Manufacturing Enterprises

2013 ◽  
Vol 584 ◽  
pp. 268-276
Author(s):  
Wei Hong Li
Keyword(s):  
Innovation System ◽  
Practical Significance ◽  
Structure Model ◽  
Innovation Capability ◽  
Factors Affecting ◽  
Manufacturing Enterprises ◽  
Factors Influencing ◽  
Main Factors ◽  
The Relationship

Through the research on the connotation of quality innovation capability in manufacturing enterprises, 22 factors influencing the quality innovation capability in manufacturing enterprises have been screened out. Based on this, the application of interpretative structural modeling (ISM) has determined the relationship between these factors, establishing the multilevel hierarchical structure model of the main factors affecting the quality innovation capability in manufacturing enterprises, and analyzing the relationships between the five levels of the model and the different roles of each factor that the quality innovation capability of manufacturing enterprises innovation system plays. The results have practical significance for manufacturing enterprises to enhance the quality of innovation capability.

scholarly journals The Role of Trade Infrastructure of the Consumer Market in Improving the Quality of Life of the Population of the Irkutsk Region

2020 ◽  
Author(s):  
Andrey Fedotov ◽  
◽  
Svetlana Schepina ◽  
◽  
Keyword(s):  
Quality Of Life ◽  
Standard Of Living ◽  
Consumer Market ◽  
Factors Affecting ◽  
Irkutsk Region ◽  
Main Factors ◽  
Constituent Elements ◽  
The Impact

One of the fundamental indicators that characterize the state of the socio-economic situation in the region is the quality of life of the population. To this end, it is necessary to analyze and evaluate the volume of consumption of goods per capita, as well as the logistics component of the development of the consumer market. The article considers the impact of the trade infrastructure of the consumer market and its constituent elements on the quality of life of the population of the Irkutsk region. The analysis of the main factors affecting the standard of living of the population is given. Ways to improve the quality of life in the region are proposed.

scholarly journals Assessment of skills gap among intermediaries of cotton supply chain in Punjab, Pakistan

2019 ◽  
Vol 6 (3) ◽  
pp. 186-191
Author(s):  
Adeel Ahmad ◽  
Muhammad Iftikhar ◽  
Babar Shahbaz ◽  
Chris O. Igodan ◽  
Kathy Lechman ◽  
...  
Keyword(s):  
Sample Size ◽  
Value Chain ◽  
Fiber Strength ◽  
Sampling Technique ◽  
Total Sample ◽  
Poor Quality ◽  
Factors Affecting ◽  
Doing Business ◽  
Marketing Costs

Cotton is an important crop in Pakistan as it contributes 1.0% of GDP and 5.1% in agricultural value addition (GOP, 2017). Despite the fact that cotton value chain has strategic importance in Pakistan in terms of its contributions towards GDP, employment, export earnings, poverty alleviation, and empowerment of women, its real value has not yet been realized. One area that has an effect on income of farmers and that has not received attention is the role of middleman in the agricultural marketing. The aims of this study were to address the skill gap of the commission agents and to develop techniques to bridge those gaps. Random sampling technique was used to determine sample size. The total sample size of the study was 50 respondents. SPSS (Statistical Package for Social Sciences) was employed to analyze the collected data. Results show that most of the respondents were in their productive ages to make effective decisions and understand features of doing business. Of the total respondents 6% had no education while 94% had education of varied level. Respondents were experienced in doing business of cotton marketing. Most of the commission agents were having awareness gap regarding quality characteristics of cotton. Commission agents had moderate skills level in management of various marketing costs. Mostly the commission agents were not considering fiber fineness, fiber length, fiber strength, fiber maturity and contamination due to hair as factors towards low prices and poor quality of cotton. Weak capacity of institutional infrastructure and lack of marketing system was the major constraint in marketing of cotton. Commission agents should be equipped with training regarding maintenance of quality attributes, management of marketing costs and controlling of various factors affecting price and quality of cotton.  

scholarly journals ANALYSIS OF THE MAIN FACTORS AFFECTING THE QUALITY OF RESTORATION WORK OF CONCRETE AND REINFORCED CONCRETE STRUCTURES

2021 ◽  
Vol 81 (3) ◽  
pp. 91-97
Author(s):  
B.M. Aubakirova ◽  
◽  
E.R. Onlasynov ◽  
Keyword(s):  
Tensile Strength ◽  
Reinforced Concrete ◽  
Adhesion Strength ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Factors Affecting ◽  
Restoration Work ◽  
Main Factors

This article examines the analysis of the main factors affecting the quality of the restoration work of concrete and reinforced concrete structures. The ways of increasing the capacity of repair concrete by increasing the adhesion strength are shown. As a result, its value should not be lower than the tensile strength of concrete.

scholarly journals Poor-quality embryos compared with available embryos at cleavage stage have similar outcomes in vitrified-thawed single blastocyst transfer

2021 ◽  
Author(s):  
Hanyan Liu ◽  
Shaoquan Zhan ◽  
Xiaolin Long ◽  
Lei Li ◽  
Hongzi Du ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Retrospective Cohort ◽  
Endometrial Thickness ◽  
Poor Quality ◽  
Good Prognosis ◽  
Cleavage Stage ◽  
Factors Affecting ◽  
Single Blastocyst Transfer ◽  
Confounding Variables

Abstract Background It was known that in patients with good prognosis, day 5 good-quality blastocysts formed by available cleavage embryos (AEs) or poor-quality cleavage embryos (PQEs) did not affect clinical outcomes. However, the clinical outcomes of day 5/6 expanded blastocysts cultured in patients who faced with PQEs was unclear. Methods Retrospective cohort study was conducted among women aged ≤ 38 who underwent vitrified-warmed single blastocyst transfers (SBTs) which originated from AEs (n = 382), PQEs with AEs (n = 99), or only PQEs without AEs (n = 101). Results The PQEs compared to the AEs showed lower CPR (38.38% in PQEs with AEs; 36.63% in PQEs without AEs; versus 57.07% in AEs) and lower LBR (28.28%; 29.70%; versus 44.50%), but there was no statistical difference in CPR (adjusted OR 0.78, 95% CI 0.46–1.31; adjusted OR 0.82, 95% CI 0.47–1.42) and LBR (adjusted OR 0.91, 95% CI 0.53–1.59; adjusted OR 0.94, 95% CI 0.50–1.78) after controlling for confounding variables. Better outcomes were associated with thicker endometrial thickness (CPR: adjusted OR 1.18, 95% CI 1.05–1.33; LBR: adjusted OR: 1.16, 95% CI 1.03–1.30) and blastocyst expansion on day 5 (CPR: adjusted OR 2.52 95% CI 1.62–3.94; LBR: adjusted OR: 2.28, 95% CI 1.43–3.65). ICM score C (CPR: adjusted OR 0.08, 95% CI 0.01–0.67; LBR: adjusted OR: 0.10, 95% CI 0.01–0.76) were associated with worse outcomes. Conclusions Once the blastocyst was available, endometrial thickness, ICM grade, and the day of blastocyst expansion were the factors affecting the outcome, while the quality of cleavage embryos (PQEs or AEs) had no effect on subsequent clinical outcomes.

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