Analysis of the Movement of Materials

2014 ◽  
Vol 484-485 ◽  
pp. 80-83
Author(s):  
Li Ling Xu

The development of sportswear is closely related to the development of scientific and technological,the improvement of the communitys civilization.As the professional sportswear design and production are close to new material,high-tech sportswear will not only help the athletes improve performance and raise campaign skills,but also more advantageous in protecting athletes safety.

Author(s):  
Pascual Timor

Drawing on the author’ professional experience, this article describes the conceptual and instrumental changes that have taken place in the design and production process of serial ceramic products as a result of the appearance of digital tools in the classroom.


2021 ◽  
Vol 51 (1) ◽  
pp. 52-54
Author(s):  
Stanislav V. Mikhailov ◽  
Maxim A. Pomerantsev ◽  
Oleg V. Zimnitsky ◽  
Sergey A. Golubev

The article deals with the topic of cutting tools, which refers to high-tech, constantly improving products. Particular attention in the article is paid to modern trends in the development of cutting tools, including the design of new and improvement of existing designs of tools and technologies for its manufacture. The article is devoted to the topical problem of digital modelling of the cutting inserts that ensures favourable cutting conditions and stable shavings breakage during cutting. The article summarises new material on the practical experience of using digital models in the design of complex-profile inserts. The authors focus on the application of computer simulation of the sharpening operation. This allows to quickly change the geometry of the prototypes by changing the settings of the sharpening machine.


2014 ◽  
Vol 15 (2) ◽  
pp. 98-117
Author(s):  
Igor Semenenko ◽  
Junwook Yoo

Large acquisitions in the United States by Canadian firms lower growth prospects and profitability of Canadian companies. Results are driven by post-acquisition performance of the largest Canadian industries, including oil & gas, mining and precious metals, which together account for almost 40 percent of Canadian firms with asset size above 100 million reported in Compustat research files. Cross-border acquisitions of firms in high tech industries do not improve performance of Canadian firms.


2017 ◽  
Vol 89 (12) ◽  
pp. 1769-1776 ◽  
Author(s):  
Stephan Jokisch ◽  
Thomas Scheibel

Abstract Silks are well known natural fibers used for textile applications and have got for the first time available upon sericulture of silkworms (Bombyx mori) several thousand years ago in China. In contrast to silkworm silk, spider silks offer better mechanical properties such as higher tensile strength and much better toughness, but natural spider silk is less accessible due to the cannibalistic behavior of spiders prohibiting large scale farming, and therefore has not been employed in textile industry yet. In this study, a biotechnologically produced spider silk protein was introduced as a new material for textile applications in form of foam coating material. The spider silk foam coating was developed to increase the abrasion behavior of natural and polymeric furniture textiles. Modern textiles are high-tech materials and optimized concerning yarn design and fabric weave to fit a wide range of applications. Often hydrofluorocarbons based coatings are used to enhance textile performances. Upon coating with sustainable spider silk, yarn fraying was significantly reduced lowering the tendency to form knots and loops. Further, the textile abrasion resistance, analyzed by pilling tests, was improved significantly (17–200%) for all tested types of fabrics, in particular long term strain pilling was minimized.


2021 ◽  
Author(s):  
Tat'yana Novikova

Modern high-tech projects, such as the design and production of microchips, are characterized by a rapid change in the technical and technological base, time constraints in the development and introduction of the product to the market. In such conditions, there is a need for optimal planning and management of the distribution of work.


2003 ◽  
Vol 29 (2-3) ◽  
pp. 269-299
Author(s):  
Janna C. Merrick

Main Street in Sarasota, Florida. A high-tech medical arts building rises from the east end, the county's historic three-story courthouse is two blocks to the west and sandwiched in between is the First Church of Christ, Scientist. A verse inscribed on the wall behind the pulpit of the church reads: “Divine Love Always Has Met and Always Will Meet Every Human Need.” This is the church where William and Christine Hermanson worshipped. It is just a few steps away from the courthouse where they were convicted of child abuse and third-degree murder for failing to provide conventional medical care for their seven-year-old daughter.This Article is about the intersection of “divine love” and “the best interests of the child.” It is about a pluralistic society where the dominant culture reveres medical science, but where a religious minority shuns and perhaps fears that same medical science. It is also about the struggle among different religious interests to define the legal rights of the citizenry.


Author(s):  
X. Lin ◽  
X. K. Wang ◽  
V. P. Dravid ◽  
J. B. Ketterson ◽  
R. P. H. Chang

For small curvatures of a graphitic sheet, carbon atoms can maintain their preferred sp2 bonding while allowing the sheet to have various three-dimensional geometries, which may have exotic structural and electronic properties. In addition the fivefold rings will lead to a positive Gaussian curvature in the hexagonal network, and the sevenfold rings cause a negative one. By combining these sevenfold and fivefold rings with sixfold rings, it is possible to construct complicated carbon sp2 networks. Because it is much easier to introduce pentagons and heptagons into the single-layer hexagonal network than into the multilayer network, the complicated morphologies would be more common in the single-layer graphite structures. In this contribution, we report the observation and characterization of a new material of monolayer graphitic structure by electron diffraction, HREM, EELS.The synthesis process used in this study is reported early. We utilized a composite anode of graphite and copper for arc evaporation in helium.


Author(s):  
F. Shaapur ◽  
M.J. Kim ◽  
Seh Kwang Lee ◽  
Soon Gwang Kim

TEM characterization and microanalysis of the recording media is crucial and complementary to new material system development as well as quality control applications. Due to the type of material generally used for supporting the medium, i.e., a polymer, conventional macro- and microthinning procedures for thin foil preparation are not applicable. Ultramicrotorny (UM) is a viable option and has been employed in previous similar studies. In this work UM has been used for preparation of XTEM samples from a magneto-optical (MO) recording medium in its original production format.The as-received material system consisted of a 4-layer, 2100 Å thick medium including a 300 Å TbFeCo layer enveloped by silicon nitride protective layers supported on a 1.2 mm thick × 135 mm (5.25 in.) diameter polycarbonate disk. Recording tracks had an approximate pitch of 1.6 μm separated by 800 Å deep peripheral grooves. Using a Buehler Isomet low-speed diamond saw, 1 mm wide and 20 mm long strips were cut out of the disk along the recording tracks.


2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.


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