scholarly journals PROCPECTS OF 3D INNOVATION APPLICATION IN MOTOR-CAR INDUSTRY

2016 ◽  
Vol 2016 (1) ◽  
pp. 60-66
Author(s):  
Геннадий Барсуков ◽  
Gennadiy Barsukov ◽  
Елена Степанова ◽  
Elena Stepanova ◽  
Елена Збинякова ◽  
...  
Keyword(s):  
3D Printing ◽  
New World ◽  
Sheet Material ◽  
Product Layer ◽  
Layer Growth ◽  
Medium Size ◽  
Car Industry ◽  
World Trend ◽  
Technological Mode ◽  
Additive Technique

A new world trend consists in additive technologies or 3D – printing – product layer growth out of powder, liquid or sheet material. It is emphasized that these techniques will become a core of the sixth technological mode. There are revealed branches of economy and industry where 3D-printing finds an application. There are shown potentialities for additive techniques excluding any limitations for common working technologies. Possible materials for the realization of these techniques are mentioned. A large extent of materials from the skill of 3D printing application in motorcar industry as one of leading branches in mechanical engineering and a source for the creation and a considerable consumer of innovations is shown. New market recesses for smallscale, medium – size and large works in the field of 3D – printing at all stages of a life cycle of motor transport are pointed out. Different approaches to the innovations of large companies and smallscale business is emphasized. The paper reports the analysis of prospects for 3D-printing development in motorcar industry, and also in repetition work, batch and singlepart production. The state of these techniques in Russia and successes achieved are shown. The problem matters on the additive technique introduction in our country and the ways for their solution are presented.

scholarly journals The influence of fertilization on yield of caraway, anise and coriander in organic agriculture

2013 ◽  
Vol 58 (2) ◽  
pp. 85-94 ◽  
Author(s):  
Milica Acimovic
Keyword(s):  
Field Experiment ◽  
Plant Species ◽  
Organic Agriculture ◽  
Agricultural Production ◽  
New World ◽  
Folk Medicine ◽  
Poultry Manure ◽  
Organic Fertilizers ◽  
World Trend ◽  
Vojvodina Province

Many plants of Apiaceae family have long been well known because of flavorful aromatic spice and, because of its healing properties, are often used in folk medicine and in cooking. In our study three plants of this family were included: caraway (Carum carvi L.), anise (Pimpinella anisum L.) and coriander (Coriandrum sativum L.). Regarding good agro-ecological conditions for growing these plants in Serbia, and a new world trend of increasing organic agricultural production, the aim of this study was to investigate the effects of application of various types of fertilizers on yield of studied plant species. The field experiment was carried out during the years of 2011 and 2012, in three localities in Vojvodina Province with the local ecotypes and six different treatments (control, ?Slavol?, ?Bactofil B-10?, ?Royal Ofert?, vermicompost and NPK). The highest caraway yield was obtained by the application of biofertilizer ?Bactofil B-10?. As regards anise and coriander the highest yield was achieved by the application of chemical fertilizer. The most effective organic fertilizers were the following: vermicompost for anise and specific poultry manure ?Royal Ofert? granules for coriander.

scholarly journals Academic library innovation through 3D printing services

2017 ◽  
Vol 38 (4/5) ◽  
pp. 208-218 ◽  
Author(s):  
Galina Letnikova ◽  
Na Xu
Keyword(s):  
Community College ◽  
3D Printing ◽  
Professional Education ◽  
Academic Library ◽  
Historical Context ◽  
Medium Size ◽  
Library Services ◽  
Student Survey ◽  
Content Type ◽  
College Library

Purpose One of the most innovative library services recently introduced by public and academic libraries, the technology of 3D printing, has the potential to be used in multiple educational settings. The purpose of this paper is to examine how this novel library digital service motivates students’ learning, and to investigate managerial issues related to the introduction of 3D printing services at a medium-size urban community college library with restricted funding. Design/methodology/approach Since Fall 2014, the LaGuardia Library Media Resources Center has been offering a portable consumer-end 3D printer for classroom use. This paper provides historical context for the implementation of 3D printing as a service offered by librarians and discusses how the community college library managed 3D printing services to support class curriculum. At the end of the three-semester-long project students were asked to volunteer to take a survey conducted by the librarian and the class instructor. Findings The results of the student survey demonstrated that library 3D printing services significantly promoted students’ motivation to learn. The conceptual model of a makerspace should be an essential part of the twenty-first century academic library. To help make that possible this paper examines certain challenges and limitations faced by librarians when introducing 3D printing, including dedicated space management, professional education, and personnel availability. Originality/value During the project described students were able to use library services to print out and study complex engineering and biology models in 3D. The proper planning and management of this innovative service allows academic librarians to enhance class curriculum by providing the means of transforming theory into physical reality.

scholarly journals 3D printing in prosthodontics

2014 ◽  
Vol 5 (4) ◽  
pp. 152-157 ◽  
Author(s):  
Edward Hems ◽  
Nigel J Knott
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
New World ◽  
Technological Revolution ◽  
Human Skills

A technological revolution in dentistry is creating new paradigms of innovation that were unimaginable only a decade ago. A bull has entered the antique china shop and is running rampant among long-established manufacturing practices dependent upon expensive human skills and craftsmanship. Adventurous dental technophiles and their patients are beginning to enjoy a new world of peerless technical excellence with prodigious potential. The digitisation of dental processes, which includes 3D printing (or rapid prototyping) is beginning to deliver real firepower in dental surgeries.

scholarly journals 3D Printing in Geology and Geophysics: A New World of Opportunities in Research, Outreach, and Education

2021 ◽  
Vol 9 ◽  
Author(s):  
Christodoulos Kyriakopoulos ◽  
Nicolas C. Barth ◽  
Paula Koelemeijer ◽  
Jeff Winterbourne ◽  
Renaud Toussaint
Keyword(s):  
3D Printing ◽  
New World ◽  
Outreach And Education

scholarly journals Comparison of the Mechanical Properties of Temporary Abutments Made of Polyetheretherketone and Photopolymeric Resin

2021 ◽  
Vol 15 (1) ◽  
pp. 512-519
Author(s):  
Maria -Alejandra Barragán-Paredes ◽  
Isabella Mosquera-Victoria ◽  
Carlos Alberto Viveros-Rebolledo ◽  
Martha Lucia Rodríguez-Paz ◽  
Mario Fernando Muñoz-Velez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Statistical Analysis ◽  
3D Printing ◽  
Dental Implants ◽  
Null Hypothesis ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Additive Technique

Background: Provisional abutments are widely used in the rehabilitation of dental implants as it allows the use of a provisional crown in order to restore patient aesthetics while the final restoration is being carried out; most of the temporary abutments available on the market are made of titanium alloygrade V (type Ti-6Al-4Va) and polyetheretherketone (PEEK), a material that exhibits very low adhesion to polymethylmethacrylate (PMMA). Objective: This research is aimed to compare the mechanical properties of commercially available PEEK abutments and abutments made using an additive technique with photopolymeric resin. Methods: Eighteen commercial temporary abutments manufactured in PEEK and eighteen experimental abutments manufactured by 3D printing using photopolymeric resin were used. The two groups of abutments were subjected to compression, bending and adhesion tests using six abutments of each type by test. Statistical analysis was performed with STATA 14 software. The data were analyzed by means of the Wilcoxon Mann-Whitney test, as these were two independent samples of reduced size. Values ​​lower than (p <0.05) were considered statistically significant in all tests and rejected the null hypothesis of equality between the group medians. Conclusion: The results indicate that it is possible to make abutments with good mechanical properties in photopolymeric resin (CLEAR FLGP04) using additive techniques to be used as temporary abutments.

The measurement of thin-film reaction layers with high-resolution FESEM

1995 ◽  
Vol 53 ◽  
pp. 330-331
Author(s):  
Paul G. Kotula ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
High Resolution ◽  
Reaction Layer ◽  
Product Layer ◽  
Buffer Layers ◽  
Oxide Superconductors ◽  
Rate Limiting Step ◽  
Ceramic Thin Film ◽  
Backscattered Electron ◽  
Boundary Reaction

Thin-film reactions in ceramic systems are of increasing importance as materials such as oxide superconductors and ferroelectrics are applied in thin-film form. In fact, reactions have been found to occur during the growth of YBa2Cu3O6+x on ZrO2. Additionally, thin-film reactions have also been intentionally initiated for the production of buffer layers for the subsequent growth of high-Tc superconductor thin films. The problem is that the kinetics of ceramic thin-film reactions are not well understood when the reaction layer is very thin; that is, when the rate-limiting step is a phase-boundary reaction as opposed to diffusion of the reactants through the product layer. In this case, the reaction layer is likely to be laterally non-uniform. In the present study, the measurement of thin reaction-product layers is accomplished by first digitally acquiring backscattered-electron images in a high-resolution field-emission scanning electron microscope (FESEM) followed by image analysis. Furthermore, the problem of measuring such small thicknesses (e.g., 20-500nm) over lengths of interfaces longer than 3mm is addressed.

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