scholarly journals The Analysis of the Applications of Crop Seed Tape Sowing Technology and Equipment: A Review

2021 ◽  
Vol 11 (23) ◽  
pp. 11228
Author(s):  
Baofeng Zhang ◽  
Dan Liu ◽  
Xiaobo Xi ◽  
Yifu Zhang ◽  
Chao Chen ◽  
...  
Keyword(s):  
High Speed ◽  
Agricultural Landscape ◽  
Special Equipment ◽  
Manufacturing Equipment ◽  
Land Preparation ◽  
The Core ◽  
Key Technologies ◽  
Carrier Materials ◽  
Cultivation Technology ◽  
Further Development

Seed tape sowing technology is a kind of crop cultivation technology based on a carrier. This technology first wraps crop seeds in a kind of carrier materials and makes them into seed tape. The seed tape is then laid down in farmland with special equipment. Seed tape planting has the advantages of accurate control of hill spacing, simplification of field sowing process and helps to implement order agriculture. Seed tape manufacturing and laying equipment are the core equipment of the technology and their working reliability directly affects the advantages of seed tape planting technology. Based on the research status of seed tape planting technology and equipment, this article made comparisons between the key technologies which include the method for seed tape manufacturing, seed tape sowing, furrowing, seed tape guiding technology, etc. In this paper, the basic problems of seed tape technology that still need further study are put forward. The future development of tape sowing technology and equipment are predicted as follows: the intelligent high precision and high-speed seed tape manufacturing equipment, the large intelligent integrated seed tape planter of “land preparation-seeding tape making-sowing”, the small and medium-sized mobile walk-behind planters, the application on the agricultural landscape and the crop transplanting. This study will be helpful to promote the further development of seed tape planting technology and provide a reference for the research of tape planting technology and equipment.

The Application of FEA in High-Speed Cutting

2011 ◽  
Vol 287-290 ◽  
pp. 104-107
Author(s):  
Lian Qing Ji ◽  
Kun Liu
Keyword(s):  
High Speed ◽  
Feeding Rate ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Material Model ◽  
Friction Model ◽  
Cutting Depth ◽  
High Speed Cutting ◽  
Key Technologies

The history and application of the FEA are briefly presented in this paper. Several key technologies such as the building of material model, the establishment of the chip - tool friction model as well as meshing are described. Taking the high-speed cutting of titanium alloy (Ti - 10V - 2Fe - 3Al) as an example , reasonable cutting tools and cutting parameters are determinted by simulating the influences of cutting speed, cutting depth and feeding rate on the cutting parameters using FEA.

scholarly journals Sharing communities – Community currency in the sharing economy

2020 ◽  
Author(s):  
Eszter Szemerédi ◽  
Tibor Tatay
Keyword(s):  
High Speed ◽  
Essential Element ◽  
Sharing Economy ◽  
Ease Of Use ◽  
Smart Contracts ◽  
Efficient Operation ◽  
Blockchain Technology ◽  
Community Currency ◽  
Efficient Alternative ◽  
Further Development

AbstractFor the further development and more efficient operation of the sharing economy, a fast and inexpensive peer-to-peer payment system is an essential element. The aim of this study is to outline a prototype that ensures the automation and decentralization of processes through smart contracts without blockchain technology. The model has been built based on the narrative that a community currency created through smart contracts can promote genuine practices of sharing as opposed to the profit-oriented approach that most of the currently operating sharing economy platforms have. Features of the model, such as ease of use, high-speed transactions without transaction cost are benefits that can provide a more efficient alternative to the traditional or to the cryptocurrency-based centralized sharing economy platforms.

scholarly journals METHODOLOGICAL GOING IS NEAR MANAGEMENT COMPETITIVE EDGES ON BASIS OF BALANCED OF MONEY STREAMS

2021 ◽  
Vol 5 (40) ◽  
pp. 236-247
Author(s):  
O. Guseva ◽  
S. Lehominova ◽  
R. Dymenko ◽  
O. Voskoboieva ◽  
O. Romashchenko
Keyword(s):  
High Speed ◽  
Process Management ◽  
Methodological Approach ◽  
Jel Classification ◽  
Competitive Advantages ◽  
Active Object ◽  
Continuous Training ◽  
Combined Use ◽  
Balanced Distribution ◽  
Further Development

Abstract. Taking into account global development trends, integration and globalization processes, encourage the search for and further development of new products, services and management mechanisms. The economic-mathematical model of optimization of parameters of type NBIC-direction of competitive advantages is developed. The model is formed by the criterion of maximizing  the net discounted cashflow. Based on the developed scientific and methodological approach, 4 types of NBIC-direction of competitive advantages of telecommunication enterprises are proposed, which are based on a combination of levels of innovative activity of the enterprise (from low to high) and complementarity of cashflow management (from low to high). As a result, the types of NBIC-direction of competitive advantages of the enterprise are proposed: adaptive-passive, adaptive-active, object-oriented; foresight-progressive. Complementary cashflow management involves a balanced distribution of cashflows by certain NBIC-components, namely: Nano-components (application of Nano-development stop rovide high-speed telecommunications), Bio-components (introduction of artificial intelligence in organizational culture, implementation of self-organization in the enterprise), Info-components (introduction of innovative standards of telecommunication activity, information software in business process management), Cogno-components (cognitive flexibility of top and middle managers, ability of personnel to complementarity, development of knowledge management system at enterprise, introduction of system of continuous training of all employees links). Thus, the combined use of these components provides an increase in cashflows and forms a modern platform for breakthrough competitive development of enterprises. Keywords: management, competitive advantage, cashflow, innovation, complementarity. JEL Classification B26,  D61 Formulas: 14; fig.: 3; tabl.: 2; bibl.: 15.

Information Filtering and Personalization Services

2005 ◽  
pp. 76-96 ◽  
Author(s):  
Chunxiao Xing ◽  
Chun Zeng ◽  
Zhiqiang Zhang ◽  
Lizhu Zhou
Keyword(s):  
Digital Libraries ◽  
Information Filtering ◽  
Vector Space Model ◽  
Research Area ◽  
User Interests ◽  
The Core ◽  
Personalized Services ◽  
Key Technologies ◽  
Similarity Computation ◽  
And Performance

Personalization service is becoming one of the core services in digital libraries, and an exciting and challenge research area. In this chapter, we analyze several key technologies and the related works in information filtering and personalized services, and then present a content-based personalized searching algorithm and a probabilistic model to represent user interests, which is more effective than the vector space model by the experiments. To solve the data sparsity and scalability problems in collaborative filtering, we present new methods for similarity computation and instance selection. The experiments show it is higher predicted precision and performance than the others. Based on the above research results, we design and develop a prototype, TH-PASS, which provides personalized searching and recommending services.

Mesoamerican Polyhedral Cores and Prismatic Blades

1968 ◽  
Vol 33 (4) ◽  
pp. 446-478 ◽  
Author(s):  
Don E. Crabtree
Keyword(s):  
High Speed ◽  
Large Series ◽  
High Speed Photography ◽  
High Quality ◽  
Pressure Method ◽  
The Core ◽  
Quality Material ◽  
Muscular Coordination

AbstractThis paper deals with the results of the author"s attempts to replicate the obsidian polyhedral cores and prismatic blades of Mesoamerica. Blades have been produced by the direct percussion, indirect percussion, and pressure methods. The pressure method using a chest crutch and a clamp produces cores and blades which are true replicas of aboriginal specimens. The importance of preforming the core and of platform preparation is stressed, and it is pointed out that, usually, actual removal of the blade offers few problems. However, to produce exhausted cores which show the perfection of aboriginal specimens and a large series of nearly identical blades requires good muscular coordination, high quality material, the establishment of patterns or rhythms of motor habits, and the absence of distractions. The author also discusses the difficulties of recovering from mistakes in manufacture.High-speed photography of prismatic blade removal, at 5,000 frames per second, has helped illustrate the behavior of the material and of the stoneworker. These photographs also indicate that under the present experimental and photographic conditions the author (Crabtree) is able to remove a prismatic blade from a core in about 1,250th of a second.

An efficient improved routing strategy for multilayer networks

2020 ◽  
pp. 2150078
Author(s):  
Jinlong Ma ◽  
Min Li ◽  
Yaming Li ◽  
Xiangyang Xu ◽  
Weizhan Han ◽  
...  
Keyword(s):  
Multilayer Structure ◽  
High Speed ◽  
Multilayer Networks ◽  
Traffic Dynamics ◽  
The Core ◽  
Transmission Process ◽  
Routing Strategy ◽  
Traffic Capacity ◽  
Average Transmission ◽  
Simulation Results

Traffic dynamics of multilayer networks draws continuous attention from different communities since many systems are actually proved to have a multilayer structure. Since the core nodes of network are prone to congested, an effective routing strategy is of great significance to alleviate the congestion of the multilayer networks. In this paper, we propose an efficient improved routing strategy, with which the core nodes that can reasonably avoid congestion at the high-speed layer in the transmission process of packets, and can also make the most of the traffic resources of the low-speed layer nodes to optimize the traffic capacity of multilayer networks. The simulation results show that the proposed routing strategy can not only improve the network traffic capacity, but also shorten the average path length and average transmission time.

Capsule chemistry technology for high-speed clinical chemistry analyses.

1985 ◽  
Vol 31 (9) ◽  
pp. 1453-1456 ◽  
Author(s):  
M Cassaday ◽  
H Diebler ◽  
R Herron ◽  
M Pelavin ◽  
D Svenjak ◽  
...  
Keyword(s):  
High Speed ◽  
Analytical Approach ◽  
Clinical Chemistry ◽  
Flow Path ◽  
Physical Interaction ◽  
Carrier Materials ◽  
Line Detector ◽  
Selective Analysis

Abstract We describe a new analytical approach--"capsule chemistry"--for high-speed, selective analysis of a wide variety of analytes. Sequential micro-aliquots of sample and reagents are encapsulated within an inert fluorocarbon liquid. The resulting "test capsule" is introduced into a single analytical flow path, composed of a solid fluorocarbon, Teflon, where the sample is incubated, mixed, reacted, and measured as a moving series of individual tests. These randomly selective assays are processed at a rate of 720 per hour. The unique physical interaction between the liquid and solid fluorocarbon carrier materials effectively prevents detectable "carryover" of aqueous constituents between the successive test capsules. Reactions are monitored through the walls of the Teflon analytical channel at nine in-line detector stations for colorimetric and nephelometric measurements.

scholarly journals Magnetizing lead-free halide double perovskites

2020 ◽  
Vol 6 (45) ◽  
pp. eabb5381
Author(s):  
Weihua Ning ◽  
Jinke Bao ◽  
Yuttapoom Puttisong ◽  
Fabrizo Moro ◽  
Libor Kobera ◽  
...  
Keyword(s):  
High Speed ◽  
Double Perovskite ◽  
Lead Free ◽  
Great Success ◽  
Double Perovskites ◽  
Temperature Dependent ◽  
Magnetic Elements ◽  
Halide Perovskites ◽  
New Generation ◽  
Further Development

Spintronics holds great potential for next-generation high-speed and low–power consumption information technology. Recently, lead halide perovskites (LHPs), which have gained great success in optoelectronics, also show interesting magnetic properties. However, the spin-related properties in LHPs originate from the spin-orbit coupling of Pb, limiting further development of these materials in spintronics. Here, we demonstrate a new generation of halide perovskites, by alloying magnetic elements into optoelectronic double perovskites, which provide rich chemical and structural diversities to host different magnetic elements. In our iron-alloyed double perovskite, Cs2Ag(Bi:Fe)Br6, Fe3+ replaces Bi3+ and forms FeBr6 clusters that homogenously distribute throughout the double perovskite crystals. We observe a strong temperature-dependent magnetic response at temperatures below 30 K, which is tentatively attributed to a weak ferromagnetic or antiferromagnetic response from localized regions. We anticipate that this work will stimulate future efforts in exploring this simple yet efficient approach to develop new spintronic materials based on lead-free double perovskites.

A Remote Operating Slit Lamp Microscope System

2011 ◽  
Vol 50 (05) ◽  
pp. 427-434 ◽  
Author(s):  
N. Tanabe ◽  
K. Go ◽  
Y. Sakurada ◽  
M. Imasawa ◽  
F. Mabuchi ◽  
...  
Keyword(s):  
High Speed ◽  
Slit Lamp ◽  
Ocular Diseases ◽  
Diagnostic Ability ◽  
The Core ◽  
Examination Time ◽  
Loading System ◽  
High Consistency ◽  
Time Required ◽  
Completion Times

SummaryObjectives: To develop a remote-operating slit lamp microscope system (the remote slit lamp) as the core for highly specialized ophthalmology diagnoses, and to compare the utility of this system with the conventional slit lamp microscope system (the conventional slit lamp) in making a diagnosis.Methods: The remote slit lamp system was developed. Three factors were evaluated in comparison to the conventional slit lamp. The ability to acquire skills was investigated using a task loading system among specialists and residents in ophthalmology. Participants repeated a task up to ten times and the time required for each task was analyzed. The consistency of the two systems in making a diagnosis was investigated using eyes of patients with ocular diseases as well as healthy volunteers.Results: The remote slit lamp is composed of a patient’s unit and ophthalmologist’s unit connected by high-speed internet. The two units share images acquired by the slit lamp in addition to the images and voices of patients and ophthalmologists. Both ophthalmology specialists and residents could minimize the completion times after several trials. The remote slit lamp took more time than the conventional slit lamp. Both systems showed a high consistency in evaluations among eyes with healthy eyes or those with ocular diseases.Conclusions: The remote slit lamp has a similar diagnostic ability, but required more examination time in comparison to the conventional slit lamp. The currently developed remote slit lamp has the potential to be employed for telemedicine purposes in the field of ophthalmology.

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