Coatings

Stafford, R. W.; Shay, J. F.

doi:10.1021/ac60073a003

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Comparison of formation control methods [34,41,75,86,104,106,[109][110][111]113,114,117,123,124]. Seeded in a field (12 simulation robots) [107] Artificial potential field Little calculation;…”

Section: • Formation Controlmentioning

confidence: 99%

Research Progress on Synergistic Technologies of Agricultural Multi-Robots

Mao

Liu

et al. 2021

Applied Sciences

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Multi-robots have shown good application prospects in agricultural production. Studying the synergistic technologies of agricultural multi-robots can not only improve the efficiency of the overall robot system and meet the needs of precision farming but also solve the problems of decreasing effective labor supply and increasing labor costs in agriculture. Therefore, starting from the point of view of an agricultural multiple robot system architectures, this paper reviews the representative research results of five synergistic technologies of agricultural multi-robots in recent years, namely, environment perception, task allocation, path planning, formation control, and communication, and summarizes the technological progress and development characteristics of these five technologies. Finally, because of these development characteristics, it is shown that the trends and research focus for agricultural multi-robots are to optimize the existing technologies and apply them to a variety of agricultural multi-robots, such as building a hybrid architecture of multi-robot systems, SLAM (simultaneous localization and mapping), cooperation learning of robots, hybrid path planning and formation reconstruction. While synergistic technologies of agricultural multi-robots are extremely challenging in production, in combination with previous research results for real agricultural multi-robots and social development demand, we conclude that it is realistic to expect automated multi-robot systems in the future.

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Section: • Formation Controlmentioning

confidence: 99%

Research Progress on Synergistic Technologies of Agricultural Multi-Robots

Mao

Liu

et al. 2021

Applied Sciences

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“…(180) Ward, L. F., Jr., Moore, R. T., and Ball, J. S., Ibid., 25, 1070 (1953) THIS biennial review is intended as a selective and critical consideration of papers on the analysis of coatings, as previously defined (19), from November 1952 through October 25, 1954. As such, it represents a departure from the comprehensive bibliographies of the past years (19)(20)(21)(22)31). The selection was made from a large number of possible inclusions, collected from the literature over the past two years, and represents, in the reviewers' opinion, the notable highlights of this particular field.…”

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confidence: 99%

Review - Coatings

Stafford¹,

Deichert²

1955

Anal. Chem.

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Thermosensitive polyurethane film and finished leather with controllable water vapor permeability

Shi

Chen

Fan

et al. 2010

J of Applied Polymer Sci

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Three types of water based polyurethane (PU), i.e. one ordinary elastomeric polyurethane (EPU) and two thermosensitive polyurethane (TSPU), were synthesized and applied in leather finishing. Differential scanning calorimetry, positron annihilation lifetimes (PAL), water swelling, and water vapor permeability (WVP) were measured to evaluate how the structure of the synthesized PU and the temperature influenced the WVP of the PU finished leather. In contrast to EPU, TSPU(b) with a glass transition reversible phase and TSPU(c) with a crystal transition reversible phase showed an obvious phase separation structure and a phase transition in the normal wearing temperature range. PAL study indicated that when the temperature was higher than the designed phase transition temperature, the ortho-positronium lifetime (s 3 ) and the average radius (R) of free volume of TSPU showed dramatic changes, whereas s 3 and R of EPU remained unchanged.The water swelling and WVP of TSPU finished leather were found to depend on the structure of the polymer and the temperature, and they gave different responses to temperature variation. When the temperature was higher than the designed phase transition temperature, a significant WVP increase from 3800 g/(m 2 24 h) to 7830 g/(m 2 24 h) for TSPU(b) finished leather and from 4100 g/(m 2 24 h) to 9450 g/(m 2 24 h) for TSPU(c) finished leather were observed. Whereas EPU finished leather showed low WVP, and increased slightly as temperature increased. Phase transition accompanying a significant change in WVP can be used to develop ''smart leather'' with controllable water vapor permeability.

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Coatings

Cited by 4 publications

References 11 publications

Research Progress on Synergistic Technologies of Agricultural Multi-Robots

Research Progress on Synergistic Technologies of Agricultural Multi-Robots

Review - Coatings

Thermosensitive polyurethane film and finished leather with controllable water vapor permeability

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