Design and Test of the Plate Type Plug Seeder Based on Magnetic Attraction

2010 ◽  
Vol 42 ◽  
pp. 280-283
Author(s):  
Yu Jing He ◽  
Bao Liu ◽  
Wan Zhang Wang
Keyword(s):  
Large Scale ◽  
Manual Operation ◽  
Seed Rate ◽  
Existing Problems ◽  
Single Seed ◽  
Magnetic Attraction ◽  
Prototype Test ◽  
Tobacco Seeds ◽  
Plate Type

Focusing on the existing problems of precision seeder the plate type plug seeder based on magnetic attraction was designed. The seeder can complete the process of attracting seeds and planting using magnetic attracting principle. Through prototype test of tobacco seeds the following conclusions can be obtained: in the attracting position the single seed rate comes up to 90% and in the seeding position the planting rate is 100%.This design combines seed pelletization technology and mechanization sowing technique. It can work entirely by manual operation. It has higher planting precision and good adaptability of the seeds. So it is suitable for large-scale factory breeding.

Design and Experiment of the Pneumatic Plate-Type Vegetable Seeder

2011 ◽  
Vol 317-319 ◽  
pp. 627-632 ◽  
Author(s):  
Hong Mei Xia ◽  
Qing Rong Li ◽  
Zhi Wei Li
Keyword(s):  
Influence Factor ◽  
Relative Pressure ◽  
Seed Rate ◽  
Single Seed ◽  
Kinematics Simulation ◽  
Switch System ◽  
Empty Seed ◽  
Suction Hole ◽  
Plate Type ◽  
Main Influence

Structure plan of a new type of pneumatic plate-type vegetable seeder was put forward, and virtual prototype of the seeder was established in the paper. By kinematics simulation and analysis, L-shape arm length and minimum distance between metering device and cell plug tray were optimized. The machine control system and air pressure switch system were designed in detail. Results of orthogonal test show that, the main influence factor for single-seed rate and empty-seed rate is sowing efficiency, the second is diameter of suction hole, next is relative pressure, the minimum is interaction between those factors. The main influence factor for multi-seed rate is diameter of suction hole, the second is relative pressure, next is interaction between factors, the minimum is sowing efficiency. The best seeding effects can be achieved under the condition of 0.9 mm suction hole diameter, -4.5 kPa relative pressure, and 200-tray per hour sowing efficiency. The single-seed rate can be up to 93.59%, the empty-seed rate is 1.25%，and the multi-seed rate is 5.16%。

TO THE PROBLEMS OF COMBATING CORRUPTION IN MODERN RUSSIA AND INTERNATIONAL COOPERATION IN THE FIELD OF ANTI-CORRUPTION

2020 ◽  
Author(s):  
Angela Dranishnikova
Keyword(s):  
Large Scale ◽  
The State ◽  
Point Of View ◽  
Modern Life ◽  
Existing Problems ◽  
Moral Point ◽  
Material Goods ◽  
The Russian Federation ◽  
The Difference ◽  
The Government

In the article, the author reflects the existing problems of the fight against corruption in the Russian Federation. He focuses on the opacity of the work of state bodies, leading to an increase in bribery and corruption. The topic we have chosen is socially exciting in our days, since its significance is growing on a large scale at all levels of the investigated aspect of our modern life. Democratic institutions are being jeopardized, the difference in the position of social strata of society in society’s access to material goods is growing, and the state of society is suffering from the moral point of view, citizens are losing confidence in the government, and in the top officials of the state.

Humans in Large-scale, Networked Virtual Environments

1997 ◽  
Vol 6 (5) ◽  
pp. 547-564 ◽  
Author(s):  
David R. Pratt ◽  
Shirley M. Pratt ◽  
Paul T. Barham ◽  
Randall E. Barker ◽  
Marianne S. Waldrop ◽  
...  
Keyword(s):  
Virtual Environments ◽  
Large Scale ◽  
Group Representations ◽  
Networked Virtual Environments ◽  
Existing Problems ◽  
Body Tracking ◽  
Level Of Details ◽  
New Ideas ◽  
Work Done ◽  
Tracking Technology

This paper examines the representation of humans in large-scale, networked virtual environments. Previous work done in this field is summarized, and existing problems with rendering, articulating, and networking numerous human figures in real time are explained. We have developed a system that integrates together some well-known solutions along with new ideas. Models with multiple level of details, body-tracking technology and animation libraries to specify joint angles, efficient group representations to describe multiple humans, and hierarchical network protocols have been successfully employed to increase the number of humans represented, system performance, and user interactivity. The resulting system immerses participants effectively and has numerous useful applications.

Recent Patents on Third Generation Bearing Testing Machine

2021 ◽  
Vol 15 ◽  
Author(s):  
Yanling Zhao ◽  
Huanqing Zhang
Keyword(s):  
Large Scale ◽  
High Efficiency ◽  
Testing Machine ◽  
Theoretical Research ◽  
Third Generation ◽  
Existing Problems ◽  
Military Equipment ◽  
Bearing Life ◽  
The Future ◽  
Testing Technology

Background: Bearing testing machine is the key equipment for bearing design, theoretical research and improvement, and it plays an important role in the performance of bearing life, fatigue, vibration and working temperature. With the requirements of aerospace, military equipment, automobile manufacturing and other industrial fields of the bearing are becoming higher and higher. There is an urgent need for high-precision and high-efficiency bearing testing machines to monitor and analyze the performance of bearings. Objective: By analyzing the recent patents, the characteristics and existing problems of the current bearing testing machine are summarized to provide references for the development of bearing test equipment in the future. Methods: This paper reviews various representative patents related to the third generation bearing testing machines. Results: Although the structure of bearing testing machines is different, the main problems in the structure and design principle of bearing testing machine have been summarized and analyzed, and the development of trend and direction of the future bearing testing machine have been discussed. Conclusion: Bearing testing machines for health monitoring of bearing life cycle is of great significance. The current bearing testing machine has basically achieved the monitoring and analysis However, due to the emergence of new types of bearings, further improvement is still needed. With the development of testing technology towards intelligent and big data-driven direction, bearing testing machine is moving towards the type of cloud computing and large-scale testing.

scholarly journals Research progress of carbon-assisted etching of silicon nanostructures

2021 ◽  
Vol 2076 (1) ◽  
pp. 012060
Author(s):  
Xiaoyu Yang ◽  
Ling Tong ◽  
Lin Wu ◽  
Baoguo Zhang ◽  
Zhiyuan Liao ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
Development Trend ◽  
Research Progress ◽  
Silicon Nanostructures ◽  
Storage Devices ◽  
Existing Problems ◽  
Energy Conversion And Storage ◽  
Silicon Based

Abstract Silicon nanostructures are attracting growing attention due to their properties and promising application prospects in solar energy conversion and storage devices, thermoelectric devices, lithium-ion batteries, and biosensing technologies. The large-scale and low-cost preparation of silicon nanostructures is critical for silicon-based advanced functional devices commercialization. In this paper, the feasibility and mechanism of silicon nanostructure fabricated by non-metallic carbon catalytic etching, as well as the currently existing problems and future development trend are reviewed.

scholarly journals Peningkatan Kualitas Infrastruktur Permukiman Melalui Pemberdayaan Masyarakat Desa/Kelurahan Berbasis Data Base Digital Keruangan (SPASIAL) Di Kabupaten Wajo

2019 ◽  
Vol 2 (1) ◽  
pp. 22-30
Author(s):  
Abdul Rachman Rasyid ◽  
Andi Lukman Irwan ◽  
Laode Muhammad Asfan Mujahid ◽  
Ihsan ◽  
Mimi Arifin ◽  
...  
Keyword(s):  
Urban Areas ◽  
Large Scale ◽  
Creative Industries ◽  
Easy Access ◽  
Small Scale ◽  
Silk Industry ◽  
Existing Problems ◽  
South Sulawesi ◽  
Regional Location ◽  
Processing Mechanisms

Wajo Regency is one of the districts that have a role in the development and progress of South Sulawesi Province. Therefore, agricultural production facilities will be developed through processing mechanisms to the creative industries. Irrigation will be directed at the development of large-scale and small-scale rural irrigation through artificial embankments, revitalization of swamps and lakes. Whereas in urban areas a residential environment will be held an adjustment, especially near the of Lake Tempe in the area of ​​Sengkang as the Capital of Wajo Regency. The purpose of this study is to find easy access for the community to drinking water and to provide accurate data related to Geographic Information System (GIS)-based regional location conditions. The approach used in this activity is a field survey related to the existing condition of the location by assisting the community, increasing knowledge by training or counseling aimed at solving existing problems in the village / subdistrict in Tempe Subdistrict, Wajo Regency, as well as training and utilizing digital databases related to the profile and potential of the city. The results of the study obtained were that some districts had several problems, namely, solid waste systems, road networks, inadequate buildings and inadequate clean water especially in Attakae, Maddukelleng, Pattirosompe and Tempe. However, there is potential that can be developed to improve the regional economy, such as the silk industry and wood industry.

scholarly journals OPTIMIZATION OF PROCESS PARAMETERS OF PELLETIZER FOR AGROPYRON SEEDS UNDER VIBRATION FORCE FIELD

2020 ◽  
Vol 60 (1) ◽  
pp. 147-154 ◽  
Author(s):  
Zhanfeng Hou ◽  
Yi Qiu ◽  
Zhi Chen ◽  
Haiyang Liu ◽  
Fang Guo ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Vibration Frequency ◽  
Tilt Angle ◽  
Seed Rate ◽  
Rotating Speed ◽  
Experimental Platform ◽  
Single Seed ◽  
The Poor ◽  
Optimization Of Process Parameters

In order to solve the poor pelleting quality of Agropyron seeds, this paper designs a novel pelleting experimental platform. A regression mathematical model of pelleting qualified rate and single seed rate was established and analysed by variance. The results showed that vibration had significant effect on pelleting quality. The order of influence is as follows: rotating speed>vibration frequency> tilt angle of coater. When the speed is 41.7 r/min, the vibration frequency is 20.28 Hz, and the tilt angle is 34.89 °, the pelleting qualified rate and the single seed rate are the highest, 83.1% and 94.9% respectively

Strategy Research on Textile and Garment Export in Jiangsu Province

2011 ◽  
Vol 225-226 ◽  
pp. 1036-1040
Author(s):  
Jun Yi Chen ◽  
Rong Jiang
Keyword(s):  
Textile Industry ◽  
Structural Adjustment ◽  
Large Scale ◽  
Jiangsu Province ◽  
Socialist Economy ◽  
Industrial Upgrading ◽  
Existing Problems ◽  
Economic Output ◽  
Chinese Characteristics ◽  
Pillar Industry

Textile industry is China's traditional leading industries and pillar industries. Total economic output of Textile industry occupy a pivotal position in all large-scale industries, and is the pillar industry in Jiangsu province's industrial economy, and makes an important contribution for the province's economic development and employment. This article discusses existing problems and countermeasures to address these issues of textile export in the Jiangsu Province. At present, Textile Industry is undergoing a critical period of structural adjustment and industrial upgrading. The textile export industry of Jiangsu Province would continue to grow and develop in the increasingly open a mature socialist economy with Chinese characteristics and a closely intertwined world economy.

Efficiency and problems of distance learning: Experience of Russia and Kazakhstan

2021 ◽  
pp. 21-32
Author(s):  
A. S. Adzhemov ◽  
A. B. Denisova ◽  
D. Zh. Satybaldina ◽  
Sh. Zh. Seilov
Keyword(s):  
Distance Learning ◽  
Large Scale ◽  
Learning Experience ◽  
Systematic Analysis ◽  
Limited Mobility ◽  
Existing Problems ◽  
Teachers And Students ◽  
National University ◽  
E Learning ◽  
Distance Work

The last decade has been marked by large-scale and rapid changes in education, taking place on the basis of modern infocommunication and digital technologies, new hardware and software, as well as teaching methods updated in accordance with this. The limited mobility of citizens due to the coronavirus pandemic further intensified these processes, when, even with a low readiness of educational institutions to switch to distance (electronic, remote) technologies, teachers and students had to quickly master these technologies and use them in practice. The resulting experience allows us to identify not only problematic, sometimes even negative, features of distance learning, but also to make sure of the undoubted advantages of these technologies. The article points out the need for a systematic analysis when deciding on the use of e-learning, taking into account both technical and methodological, as well as personnel readiness for the implementation of this technology.The article analyzes these problems using the example of teaching both technical and humanitarian disciplines. The experience of distance work is analyzed on the example of cooperation between the Moscow Technical University of Communications and Informatics (Russia) and the L. N. Gumilyov Eurasian National University (Kazakhstan), which in its practical activities purposefully invites foreign professors to deliver lectures, guide undergraduates, etc., including those based on distance technology. The data of an anonymous questionnaire survey of students of these universities are given, allowing to assess the effectiveness of the decisions made, as well as to clarify the existing problems.

Recommender System in the Context of Big Data

2016 ◽  
pp. 231-246
Author(s):  
Khadija Ateya Almohsen ◽  
Huda Kadhim Al-Jobori
Keyword(s):  
Big Data ◽  
Recommender System ◽  
Large Scale ◽  
Singular Value ◽  
Web Content ◽  
Large Scale Systems ◽  
Existing Problems ◽  
Current State ◽  
The World ◽  
Value Decomposition

The increasing usage of e-commerce website has led to the emergence of Recommender System (RS) with the aim of personalizing the web content for each user. One of the successful techniques of RSs is Collaborative Filtering (CF) which makes recommendations for users based on what other like-mind users had preferred. However, as the world enter Big Data era, CF has faced some challenges such as: scalability, sparsity and cold start. Thus, new approaches that overcome the existing problems have been studied such as Singular Value Decomposition (SVD). This chapter surveys the literature of RSs, reviews the current state of RSs with the main concerns surrounding them due to Big Data, investigates thoroughly SVD and provides an implementation to it using Apache Hadoop and Spark. This is intended to validate the applicability of, existing contributions to the field of, SVD-based RSs as well as validated the effectiveness of Hadoop and spark in developing large-scale systems. The results proved the scalability of SVD-based RS and its applicability to Big Data.

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