STUDY ON THE PROCESS OF RAPESEED HULLING BY THE IMPACT

2019 ◽  
Author(s):  
А.О. РЕНЗЯЕВ ◽  
О.П. РЕНЗЯЕВ ◽  
С.Н. КРАВЧЕНКО ◽  
Р.В. КРЮК
Keyword(s):  
Rotational Speed ◽  
Calculated Data ◽  
Quality Characteristics ◽  
Complete Separation ◽  
Edible Oil ◽  
Siberian Region ◽  
The Core ◽  
The Cost ◽  
The Impact

Исследованы прочностные и физико-механические свойства оболочки рапса с точки зрения ее разрушения и удаления. Установлено, что наиболее рациональным является двухстадийный способ обрушивания: 1-я стадия – на вальцовых мельницах, 2-я – на центробежной обрушивающей машине. Определены параметры центробежной обрушивающей машины для обеспечения минимальной необходимой линейной скорости 10,81 м/с: угол наклона отбойной пластины (90 ± 2)°, частота вращения барабана (2400 ± 150) об/мин. Установлено, что правильно подобранные условия и угол, под которым происходит удар, позволяют значительно снизить количество не до конца обрушенного семени и содержание расколотого ядра. При этом при свободном ударе об отбойную пластину под углом, отличным от 88–91°, или подаче недостаточно равномерного потока семян значительно увеличивается содержание необрушенных семян. На разрушение 1 кг семян необходимо затратить 58,45 Дж. Таким образом, по расчетным данным, для семян рапса диаметром 1,5 мм частота вращения барабана должна находиться в диапазоне от 2221 до 2565 об/мин при ударе семени под углом 90°. Диаметр семян рапса, выращиваемого в Сибирском регионе, составляет от 0,8 до 1,8 мм. Установлено, что подсушивание семян рапса в течение 30–40 с при температуре 100°С позволяет увеличить эффективность разрушения оболочки до полного ее отделения от ядра рапса. Представленные результаты позволяют повысить качество очистки семян рапса от оболочки и улучшить качественные характеристики получаемого масла, облегчить последующие технологические процессы получения пищевого масла, снизить затраты на рафинацию и дезодорацию на 2%. The strength and physico-mechanical properties of the shell of rapeseed in terms of its destruction and removal are investigated. It is established that the most rational is a two-stage method of seed hulling: the 1st stage – on roller mills, the 2nd – on a centrifugal hulling machine. The parameters of the centrifugal hulling machine to provide the minimum required linear speed of 10,81 m/s are defined: the angle of inclination of the turnback plate (90 ± 2)°, the rotational speed of drum (2400 ± 150) RPM. It is established that the correctly selected conditions and the angle at which the impact occurs, can significantly reduce the amount is not completely hulling seed and the substance of the split nucleus. At the same time, with a free impact on the turnback plate at an angle different from 88–91°, or the supply of an insufficiently uniform flow of seeds, the content is not completely hulling seed increases significantly. On hulling of 1 kg of seeds it is necessary to spend 58,45 J. Thus, according to the calculated data, for rape seeds with a diameter of 1,5 mm, the rotational speed of drum should be in the range from 2221 to 2565 RPM when the seed is struck at an angle of 90°. The diameter of rapeseed grown in the Siberian region ranges from 0,8 to 1,8 mm. It was found that drying of rapeseed for 30–40 s at a temperature of 100°C, can increase the efficiency of destruction of the shell to its complete separation from the core of rapeseed. The presented results make it possible to improve the quality of cleaning of rape seeds from the shell and improve the quality characteristics of the obtained oil, facilitate the subsequent technological processes of obtaining edible oil, reduce the cost of refining and deodorization by 2%.

Return on Invesment (ROI) of Software Product: A Systematic Literature Review

2015 ◽  
Vol 6 (1) ◽  
pp. 50-57
Author(s):  
Rizqa Raaiqa Bintana ◽  
Putri Aisyiyah Rakhma Devi ◽  
Umi Laili Yuhana
Keyword(s):  
Return On Investment ◽  
Assessment Criteria ◽  
Software Product ◽  
And Performance ◽  
Rational Consideration ◽  
Actual Return ◽  
The Cost ◽  
Investment Models ◽  
The Impact

The quality of the software can be measured by its return on investment. Factors which may affect the return on investment (ROI) is the tangible factors (such as the cost) dan intangible factors (such as the impact of software to the users or stakeholder). The factor of the software itself are assessed through reviewing, testing, process audit, and performance of software. This paper discusses the consideration of return on investment (ROI) assessment criteria derived from the software and its users. These criteria indicate that the approach may support a rational consideration of all relevant criteria when evaluating software, and shows examples of actual return on investment models. Conducted an analysis of the assessment criteria that affect the return on investment if these criteria have a disproportionate effort that resulted in a return on investment of a software decreased. Index Terms - Assessment criteria, Quality assurance, Return on Investment, Software product

Citizen Deliberation Online

2019 ◽  
pp. 689-712
Author(s):  
Patrícia Rossini ◽  
Jennifer Stromer-Galley
Keyword(s):  
Political Engagement ◽  
Future Research ◽  
The Internet ◽  
Digital Platforms ◽  
The Core ◽  
Political Conversation ◽  
Political Talk ◽  
Citizen Deliberation ◽  
The Impact

Political conversation is at the heart of democratic societies, and it is an important precursor of political engagement. As society has become intertwined with the communication infrastructure of the Internet, we need to understand its uses and the implications of those uses for democracy. This chapter provides an overview of the core topics of scholarly concern around online citizen deliberation, focusing on three key areas of research: the standards of quality of communication and the normative stance on citizen deliberation online; the impact and importance of digital platforms in structuring political talk; and the differences between formal and informal political talk spaces. After providing a critical review of these three major areas of research, we outline directions for future research on online citizen deliberation.

scholarly journals Are Multi-Language Design Smells Fault-Prone? An Empirical Study

2021 ◽  
Vol 30 (3) ◽  
pp. 1-56
Author(s):  
Mouna Abidi ◽  
Md Saidur Rahman ◽  
Moses Openja ◽  
Foutse Khomh
Keyword(s):  
Programming Languages ◽  
Language Design ◽  
Functional Requirements ◽  
Code Smells ◽  
Design And Implementation ◽  
Design Smells ◽  
The Cost ◽  
The Impact ◽  
Fault Proneness

Nowadays, modern applications are developed using components written in different programming languages and technologies. The cost benefits of reuse and the advantages of each programming language are two main incentives behind the proliferation of such systems. However, as the number of languages increases, so do the challenges related to the development and maintenance of these systems. In such situations, developers may introduce design smells (i.e., anti-patterns and code smells) which are symptoms of poor design and implementation choices. Design smells are defined as poor design and coding choices that can negatively impact the quality of a software program despite satisfying functional requirements. Studies on mono-language systems suggest that the presence of design smells may indicate a higher risk of future bugs and affects code comprehension, thus making systems harder to maintain. However, the impact of multi-language design smells on software quality such as fault-proneness is yet to be investigated. In this article, we present an approach to detect multi-language design smells in the context of JNI systems. We then investigate the prevalence of those design smells and their impacts on fault-proneness. Specifically, we detect 15 design smells in 98 releases of 9 open-source JNI projects. Our results show that the design smells are prevalent in the selected projects and persist throughout the releases of the systems. We observe that, in the analyzed systems, 33.95% of the files involving communications between Java and C/C++ contain occurrences of multi-language design smells. Some kinds of smells are more prevalent than others, e.g., Unused Parameters , Too Much Scattering , and Unused Method Declaration . Our results suggest that files with multi-language design smells can often be more associated with bugs than files without these smells, and that specific smells are more correlated to fault-proneness than others. From analyzing fault-inducing commit messages, we also extracted activities that are more likely to introduce bugs in smelly files. We believe that our findings are important for practitioners as it can help them prioritize design smells during the maintenance of multi-language systems.

scholarly journals IMMERSIVE TECHNOLOGIES AS A TOOL OF INNOVATIVE MARKETING IN THE FIELD OF BUSINESS ORGANIZATION

2021 ◽  
Author(s):  
Valentyna Fostolovych ◽  
Tetiana Botsian
Keyword(s):  
Human Life ◽  
Digital Technologies ◽  
Digital Transformation ◽  
Competitive Advantages ◽  
Marketing Activities ◽  
Marketing Tool ◽  
The Cost ◽  
The Impact ◽  
Immersive Technologies

The permeability of all spheres of both economic activity and human life with digital technologies encourages the search for new marketing ideas necessary for the implementation of the product (goods, works and services).  Today's consumer has become more demanding both to the product itself and to the ways of presenting it.  Immersive technologies are becoming one of the tools that contribute to the formation of competitive advantages, especially the organization of business in the field of entertainment, as one of the areas of additional income in the field of hotel and restaurant services and marketing activities of enterprises.  Digital transformation leads to the search for new initiatives that will be a tool to meet customer needs and a way to reach wider market segments.  The process of digitalization must first be integrated into the economy of the whole state and the enterprise as a whole, and in all processes of production of goods, works and services.  Digital-transformation of domestic enterprises will help to obtain additional competitive advantages both in the domestic market and in the international market.  The formation of competitive advantages is associated not only with the maximum involvement of digital technologies in business.  It is important to choose such technologies that will be most effective in the implementation of a particular type of enterprise, under certain conditions and in a particular environment. The expediency of using immersive technologies as a marketing tool is undeniable.  However, in addition to tools, immersive technologies are important as a means of education, a separate milestone in the field of entertainment, a means of psychological influence and more.  That is, the impact of this tool on the level of competitiveness of the enterprise in the environment of the demanding consumer is manifested: in the form of reducing the cost of attracting the client; active covert promotion through their use; improving the quality of the presented product (goods, works, services); ensuring the elasticity of the enterprise to the needs and requirements of consumers; the transition of the enterprise to an innovative type of development and active digitalization.

scholarly journals Heterogeneity in urology teaching curricula among Canadian urology residency programs

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Uday Mann ◽  
Ryan Ramjiawan ◽  
Jasmir G. Nayak ◽  
Premal Patel
Keyword(s):  
Postgraduate Education ◽  
Program Directors ◽  
Significant Heterogeneity ◽  
Teaching Session ◽  
Residency Programs ◽  
The Core ◽  
Case Presentations ◽  
The Impact ◽  
Urology Residency

Introduction: Postgraduate education is transitioning to a competency-based curriculum in an effort to standardize the quality of graduating trainees. The learning experiences and opportunities in each institution are likely variable, as no standard exists regarding the teaching curriculum offered through residency. The objective of this study is to examine the various teaching curricula among different Canadian urology residency programs and to identify which teaching modalities are prioritized by program directors. Methods: A 10-question anonymous survey was sent electronically to program directors at all 12 urology residency programs across Canada. Questions were designed to quantify the time allotted for teaching and to assess the various teaching session types prioritized by programs to ensure the successful training of their graduates. We assessed each program’s perceived value of written exams, oral exams, didactic teaching session, and simulation sessions. Responses were assessed using a Likert-scale and a ranking format. Descriptive statistics were performed. Results: Overall survey response rate from residency program directors was 75% (9/12). Sixty-seven percent of programs designated one day of teaching per week, whereas 33% split resident teaching over two days. Review of chapters directly from Campbell-Walsh Urology textbook were deemed the most valuable teaching session. Practice oral exams were also prioritized, whereas most programs felt that simulation labs contributed the least to residency education. All programs included review of the core urology textbook in their weekly teaching, while only 67% of programs included faculty-led didactic sessions and case presentations. Forty-four percent of programs included resident-led didactic sessions. Practice oral exams and simulation labs were the least commonly included teaching modalities. Conclusions: Although most program directors prioritize the review of chapters in the core urology textbook, we found significant heterogeneity in the teaching sessions prioritized and offered in current urology residency curricula. As we move to standardize the quality of graduating trainees, understanding the impact of variable educational opportunities on residency training may become increasingly important.

scholarly journals Consideration of quality change of railway transport maintenance operations in managing costs of goods transport

2018 ◽  
Vol 239 ◽  
pp. 03005
Author(s):  
Lidia Shkurina ◽  
Eugenia Maskaeva ◽  
Stanislav Maskaev
Keyword(s):  
Cost Management ◽  
Rolling Stock ◽  
Market Demand ◽  
Railway Transport ◽  
Quality Change ◽  
The Cost ◽  
The Impact ◽  
Financial Result ◽  
Freight Market

the authors reviewed the quality of operational work of railway transport in the cost management system, presented methods for assessing the impact of the quality of rolling stock on the current costs of transportation activities, considered the issues of the impact of the quality of operational work on the formation of freight market demand and of financial result of the transport company - the owner of infrastructure and traction rolling stock, represented methods of assessing financial and economic efficiency of improving the quality of operational work for the company - a participant of the freight market.

scholarly journals What counts for quality in interdisciplinary accounting research in the next decade

2019 ◽  
Vol 32 (1) ◽  
pp. 2-25 ◽  
Author(s):  
James Guthrie ◽  
Lee D. Parker ◽  
John Dumay ◽  
Markus J. Milne
Keyword(s):  
Core Values ◽  
Research Quality ◽  
Journal Ranking ◽  
Content Type ◽  
Accounting Research ◽  
The Core ◽  
Citation Metrics ◽  
The Impact

Purpose The purpose of this paper is to reflect upon the focus and changing nature of measuring academic accounting research quality. The paper addresses contemporary changes in academic publishing, metrics for determining research quality and the possible impacts on accounting scholars. These are considered in relation to the core values of interdisciplinary accounting research ‒ that is, the pursuit of novel, rigorous, significant and authentic research motivated by a passion for scholarship, curiosity and solving wicked problems. The impact of changing journal rankings and research citation metrics on the traditional and highly valued role of the accounting academic is further considered. In this setting, the paper also provides a summary of the journal’s activities for 2018, and in the future. Design/methodology/approach Drawing on contemporary data sets, the paper illustrates the increasingly diverse and confusing array of “evidence” brought to bear on the question of the relative quality of accounting research. Commercial products used to rate and rank journals, and judge the academic impact of individual scholars and their papers not only offer insight and visibility, but also have the potential to misinform scholars and their assessors. Findings In the move from simple journal ranking lists to big data and citations, and increasingly to concerns with impact and engagement, the authors identify several challenges facing academics and administrators alike. The individual academic and his or her contribution to scholarship are increasingly marginalised in the name of discipline, faculty and institutional performance. A growing university performance management culture within, for example, the UK and Australasia, has reached a stage in the past decade where publication and citation metrics are driving allocations of travel grants, research grants, promotions and appointments. With an expanded range of available metrics and products to judge their worth, or have it judged for them, scholars need to be increasingly informed of the nuanced or not-so-nuanced uses to which these measurement systems will be put. Narrow, restricted and opaque peer-based sources such as journal ranking lists are now being challenged by more transparent citation-based sources. Practical implications The issues addressed in this commentary offer a critical understanding of contemporary metrics and measurement in determining the quality of interdisciplinary accounting research. Scholars are urged to reflect upon the challenges they face in a rapidly moving context. Individuals are increasingly under pressure to seek out preferred publication outlets, developing and curating a personal citation profile. Yet such extrinsic outcomes may come at the cost of the core values that motivate the interdisciplinary scholar and research. Originality/value This paper provides a forward-looking focus on the critical role of academics in interdisciplinary accounting research.

Crack Repair Using Hybrid Additive Manufacturing and Friction Stir Processing

2019 ◽  
Author(s):  
Fadi Al-Badour ◽  
Ibrahim H. Zainelabdeen ◽  
Rami K. Suleiman ◽  
Akeem Adesina
Keyword(s):  
Additive Manufacturing ◽  
Friction Stir Processing ◽  
Welding Speed ◽  
Rotational Speed ◽  
Hardness Test ◽  
Mechanical Tests ◽  
Friction Stir ◽  
Al 6061 ◽  
The Impact

Abstract A hybrid additive manufacturing (AM) and friction stir processing (FSP) was used to heal a crack in 6 mm thick Al 6061-T6 aluminum alloy. AL-6061 is usually used in H2 high-pressure vessel fabrication as well as aerospace applications. In this work, Al-Si powder was utilized to fill the crack, then FSP was applied to consolidate and stir the powder with the base metal to fill and close the crack zone. Effect of FSP parameters including welding speed and tool rotation speed on the quality of repair was studied. Various mechanical tests, as well as characterization techniques such as hardness test, optical microscopy, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS), were employed to study the newly developed hybrid process on the quality of the repair. The investigation revealed that low rotational speed of 800 rpm results in minimum variation in microhardness. Moreover, the impact of welding speed on microhardness is smaller as compared to rotational speed.

The Impact of Mesh Implantation on Vaginal Smooth Muscle Innervation and Contraction

2013 ◽  
Author(s):  
Zegbeh C. Jallah ◽  
Pamela Moalli ◽  
Andrew Feola ◽  
William Barone ◽  
Stacy Palcsey ◽  
...  
Keyword(s):  
Structural Integrity ◽  
Surgical Repair ◽  
The United States ◽  
Pelvic Organ ◽  
Muscle Innervation ◽  
Vaginal Canal ◽  
The Cost ◽  
Vaginal Smooth Muscle ◽  
The Impact

Pelvic organ prolapse (POP) is a multifactorial disorder characterized by the descent of the pelvic organs into the vaginal canal. This disorder is associated with decreased quality of life, and even depression, yet 50% of women over the age of fifty are living with POP. The cost associated with the repair of POP exceeds one billion dollars annually, in the United States alone. This rather exorbitant figure includes the cost of surgery performed for symptom management, but does not include strategies which address the underlying cause of the disorder for which there are none. Because failure rates of native tissue repairs are as high as 30%, vaginal mesh is increasingly used in the surgical repair of POP. The procedure aims to reinforce the fibromuscular layer of the vagina and the paravaginal attachments, thus providing structural integrity to the weakened native tissues. However, the use of mesh is limited by mesh-related complications including exposure, erosion, pain contraction and infection.

scholarly journals Methodological Characteristics of Clinical Trials: Impact of Mandatory Trial Registration

2019 ◽  
Vol 22 ◽  
pp. 131-141
Author(s):  
Ashish Kumar Kakkar ◽  
Biswa Mohan Padhy ◽  
Sudhir Chandra Sarangi ◽  
Yogendra Kumar Gupta
Keyword(s):  
Clinical Trial ◽  
Clinical Trials ◽  
Statistical Methods ◽  
Quality Characteristics ◽  
Allocation Concealment ◽  
Trial Registration ◽  
Control Group ◽  
Study Protocols ◽  
The Impact

Purpose: Numerous studies across multiple specialties have evaluated the impact of trial registration on quality of study reports and found significant improvements over several domains. However, the impact of mandatory trial registration on the quality of clinical trial protocols remains hitherto unexplored. Methods: We carried out a retrospective cohort study of clinical trial applications submitted to drug regulatory authority of India for initial review with the objective of comparing methodological characteristics of their protocols. Since trial registration was made mandatory in the country in June 2009, we selected two study periods as between January 2007 to May 2009 (Period I) and July 2009 to December 2011 (Period II). Seventy-five protocols were randomly selected using a computer-generated list for each study period, making a total of 150 protocols. Data on twelve key methodological characteristics were collected including clearly defined primary outcomes, randomization, blinding, use of control group, statistical methods, handling of withdrawals amongst others. Results: More than 3/4th of the trial applications in the two study periods were for new chemical entities and nearly 90% were pharmaceutical industry sponsored studies. Comparing the period before and after implementation of mandatory trial registration, description of clearly defined trial outcomes improved from nearly 42% to 80% (p<0.001), sample size justifications increased from 38% to 70% (p<0.001) and use of allocation concealment improved from 24% to 49% (p=0.001). Marked improvement was also noted for blinding, description of statistical methods and handling of withdrawals and dropouts. Remaining characteristics did not change significantly between the two study periods. The mean cumulative scores for the study protocols improved significantly from 7± 0.296 in the first period to 8.93± 0.346 (p<0.001) in the second period. Conclusions: Our study found a significant improvement in the methodological quality characteristics of the protocols particularly in elements related to minimization of bias and statistical methods, which could be attributed to mandatory trial registration. Overall, the significant improvement was limited to global clinical trials, and room for improvement was noted for two quality characteristics – proportion of randomized studies and trials adequately describing the generation of allocation sequence.

Sign in / Sign up

Export Citation Format

Share Document