scholarly journals RESEARCH STATUS AND DEVELOPMENT TREND OF MECHANIZED STRAW RETURNING TECHNOLOGY. A REVIEW

2021 ◽  
pp. 465-475
Author(s):  
Fang Liang ◽  
YuBing Wang ◽  
WeiHong Deng ◽  
Shaoning Yuan ◽  
Zirui Wang
Keyword(s):  
Agricultural Development ◽  
Soil Surface ◽  
Development Trend ◽  
Time Saving ◽  
Evaluation Indexes ◽  
Precise Control ◽  
Research Status ◽  
Modern Agriculture ◽  
Burial Rate ◽  
Major Development

As the application of agricultural mechanized production technology becomes more and more extensive, the application of mechanized straw returning technology has become more and more valuable. The mechanized return of straw to the field is a time-saving and labor-saving technology. It is an effective way to achieve sustainable agricultural development and is of great significance to the development and progress of modern agriculture. This article analyzes the current research status of mechanized straw returning to the field, discusses the process structure and characteristics of different mechanized straw returning methods, and focuses on the analysis of the composite technology of straw returning to the field. At the same time, the key problems of straw returning to the field, such as the length of straw not meeting the standard, the shallow depth of straw returning to the field, and the uneven distribution of straw, are put forward and analyzed. By taking the cover and burial rate of straw on the soil surface and the spatial distribution uniformity of straw in the soil as the performance evaluation indexes of straw mechanized field return, each index is elaborated. Finally, two major development trends are proposed: the development of mechanized straw returning to the field from a single process to a composite process, and the effect of straw returning to the field towards uniform mixed burying and precise control.

scholarly journals Review and Development Trend of Digital Hydraulic Technology

2020 ◽  
Vol 10 (2) ◽  
pp. 579
Author(s):  
Qiwei Zhang ◽  
Xiangdong Kong ◽  
Bin Yu ◽  
Kaixian Ba ◽  
Zhengguo Jin ◽  
...  
Keyword(s):  
Energy Saving ◽  
Developmental Process ◽  
Development Trend ◽  
Research Status ◽  
Uniform Definition ◽  
Definition Of ◽  
The Development Trend ◽  
Exact Definition

Since the emergence of digital hydraulic technology, it has achieved good results in intelligence, integration, energy saving, etc. After decades of development, and it has also attracted wide attention in the industry. However, for many years, the definition of digital hydraulic technology has differed between researchers, and there is no uniform definition. Such a situation affects the development of it to a certain extent. Therefore, this paper gives the exact definition of digital hydraulic technology based on a large number of researches on it. At the same time, the paper analyzes the research status and developmental process of the such a technology, and we forecast the development trend of it.

scholarly journals Research Status and Development Trend of Intelligent Excavators

2020 ◽  
Vol 56 (13) ◽  
pp. 165
Author(s):  
LI Yunhua ◽  
FAN Rujun ◽  
YANG Liman ◽  
ZHAO Bin ◽  
QUAN Long
Keyword(s):  
Development Trend ◽  
Research Status

scholarly journals A scientometric analysis of e-participation research

2018 ◽  
Vol 2 (2) ◽  
pp. 136-148 ◽  
Author(s):  
Tuotuo Qi ◽  
Tianmei Wang ◽  
Yanlin Ma ◽  
Wei Zhang ◽  
Yanchun Zhu
Keyword(s):  
Information Visualization ◽  
Development Trend ◽  
Scientometric Analysis ◽  
Content Type ◽  
Research Status ◽  
The Usa ◽  
Visualization Technology ◽  
The Uk ◽  
New Research ◽  
Participation Research

Purpose Due to the increasing demand for public services, as a new form of public governance, e-participation has emerged. Scholars from various disciplines have published plenty of research results on e-participation. This paper aims to reveal the research status frontiers directly by mapping knowledge domains. Design/methodology/approach The authors take 1,322 articles on e-participation published in Web of Science from 2001 to 2017 as research object. They then run the information visualization software CiteSpace to drill deeper into the literature data. Findings The study found that e-participation research has the obvious interdisciplinary feature; the author and institution cooperation networks with less internal cooperation are relatively sparse; the USA ranks first in the field of e-participation research, followed by the UK, with the other countries lagged behind; and e-participation through social media is gradually becoming the new research focus. Originality/value Based on the objective data and information visualization technology, the research intuitively reveals the research status and development trend of e-participation.

scholarly journals Research Status and Development Trend of Chinese Medicine Chewing Gum

2020 ◽  
Vol 185 ◽  
pp. 03046
Author(s):  
Ni Yan ◽  
Ya Wen ◽  
Xi-Mei Tu
Keyword(s):  
Health Care ◽  
Chinese Medicine ◽  
Development Trend ◽  
Chewing Gum ◽  
Medical Field ◽  
Preparation Technology ◽  
Research Status ◽  
Function Formulation ◽  
Increasing Demand ◽  
Demand For Health

At present, chewing gum plays a certain role in the medical field. With the increasing demand for health care functional products, Chinese Medicine Chewing Gum is gradually developing. In this paper, the function, formulation and preparation technology of Chinese medicine chewing gum are summarized and analyzed in detail based on literature and patent, expecting that the chewing gum will be given more value and meaning in the future.

scholarly journals Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China

2020 ◽  
Vol 12 (16) ◽  
pp. 6603
Author(s):  
Li Ma ◽  
Ming’an Shao ◽  
Tongchuan Li
Keyword(s):  
Soil Temperature ◽  
Soil Water ◽  
Agricultural Development ◽  
Soil Layer ◽  
Soil Surface ◽  
Soil Evaporation ◽  
Water Evaporation ◽  
Soil Columns ◽  
Soil Surface Temperature ◽  
Water Holding

Earthworms have an important influence on the terrestrial ecological environment. This study assesses the effect of different earthworm densities on soil water content (SWC) and evaporation in a laboratory experiment. Four earthworm densities (0 no-earthworm, control [C]; 207 earthworms m−2, low density [LDE]; 345 earthworms m−2, medium density [MDE]; and 690 earthworms m−2, high density [HDE]) are tested in soil columns. Results show that cumulative evaporation occurs in the decreasing order of densities: C (98.6 mm) > LDE (115.8 mm) > MDE (118.4 mm) > HDE (124.6 mm). Compared with the control, earthworm activity decreases cumulative soil evaporation by 5.0–20.9%, increases soil temperature to 0.46 °C–0.63 °C at 8:00, and decreases soil temperature to 0.21 °C–0.52 °C at 14:00 on the soil surface. Temperature fluctuations reduce with increasing earthworm densities. A negative correlation is found between cumulative soil evaporation and earthworm density (R2 = 0.969, p < 0.001). Earthworms significantly (p < 0.05) decrease the surface SWC loss (0–20 cm) soil layer but increase the subsoil SWC loss (60–100 cm) by adjusting the soil temperature and reducing soil water evaporation. Earthworm activities (burrows, casts…) improve the soil water holding ability by adjusting soil temperature and reducing soil water evaporation. Thus, the population quantity of earthworms may provide valuable ecosystem services in soil water and heat cycles to save water resources and realize sustainable agricultural development.

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