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The purpose of this paper was to study the dynamic changes of conventional nutrients and available energy in the Broussonetia papyrifera leaves at different growth stages. According to the growth cycle of conformation trees in Yangling area of Shaanxi Province, Broussonetia papyrifera leaves with no pests and diseases and normal plants were picked for one year. Starting from April 19th, tree leaf collection was conducted every three weeks, with a total of 10 groups until October 25th. Nutrient composition was determined after sample collection. The results showed that: the crude protein, total fatty acid, unsaturated fatty acid, amino acid, P, S, K, available energy value, relative feeding value, milk yield per ton of feed and relative forage quality from May 10th to May 31th collected Broussonetia papyrifera leaves were significantly higher than other growth stages (P<0.05); the lignin and ADF of collected Brous⁃ sonetia papyrifera leaves in the middle growth stage were significantly higher than other growth stages (P< 0.05); the crude fat, NDF, water-soluble carbohydrate, Ca and Mg of collected Broussonetia papyrifera leaves in late growth stage were significantly higher than other growth stages (P<0.05). According to the results of this experiment, as a high-quality protein feed, the Broussonetia papyrifera leaves can be harvested from May 10th to May 31th as feed materials for most animals. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bulletin of Soil & Water Conservation is the property of Bulletin of Soil & Water Conservation Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Urban Architecture & Development is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, the curing process of Elium resin of various thicknesses was simulated and experimentally verified using Abaqus simulation software. This was done in order to accurately predict the exothermic behavior of Elium resin. A finite element model of Elium resin curing was developed based on the transient non-linear heat transfer equation of the resin curing model. The findings demonstrate that the simulation results for the curing temperature agree with the experimental findings, and the peak curing temperature exhibits a non-linear increasing trend as resin thickness increases. When the peak curing temperature approaches 100 ℃, resin bubbles are produced, providing a theoretical foundation for optimising the Elium composite curing process. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the effects of Semen Cuscutae-Fructus Lycii（SC-FL） on testicular structure and sperm quality of oligoasthenozoospermia mouse models induced by Glucosides of Tripterygium wilfordii hook. F（GTW）. Methods A total of 36 male BALB/c mice were randomly divided into the control group（12） and the model group（24）. The mice in the control group were treated with deionized water, and the mice in the model group with GTW for 4 weeks. Two mice from the control group and four mice from the model group were randomly selected for model verification. After the model was successfully validated, the remaining 10 normal mice were used as the control group, and the mice in the model group were divided into the model group and the treatment group according to the random number table method, with 10 mice in each group. The mice in the control group and the model group were given with deionized water, and the mice in the treatment group intragastrically with SC-FL suspension for 4 weeks. At the end of the 8th week of the experiment, the body mass, testicular mass and semen parameters of mice were measured, and the histological morphology of testes was observed by hematoxylin eosin（HE） staining. Results The testicular quality, sperm concentration, and total sperm motility（PR+NP） of mice in the treatment group were higher than those in the spermatogenic failure model group, with significant differences（P＜ 0.01）. Compared with the model group, the Sertoli cells and spermatids were increased in the testicular tissue of the treatment group, and the seminiferous tubules were structurally intact and arranged closely. Conclusion Semen Cuscutae-Fructus Lycii（SC-FL）can effectively alleviate oligoasthenozoospermia, and its mechanism may be related to the repair of testicular tissue structure damage. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective：To investigate the application of arthroscope in the surgical treatment of the patients with temporomandibular joint synovial osteoma disease, and to clarify its value in improving the clinical diagnosis and treatment efficiency and prognosis of the patients with the disease. Methods：The clinical data of two patients with temporomandibular synovial osteoma disease treated with arthroscope were collected. The opening degree, maximum anterior extension and lateral movements, and pain improvement of the patients were compared before and 6 months after surgery, and the operation procedure was summarized，and the significance of arthroscope application was analyzed combined with literature review. Results：Two patients with temporomandibular synovial osteoma disease both chose the method of open surgery combined with arthroscope. With the assistance of arthroscope, the open surgery completely removed the chondroma bodies, and the removal of inflammatory synovial tissue was carried out. The opening degrees of the patients reached 33 and 35 mm, respectively, 6 months after operation, and the maximum anterior extension and lateral movement were ≥7 mm，the joint function was gradually restored. Conclusion：Arthroscope has obvious advantages in the surgical treatment of the patients with temporomandibular synovial osteoma disease, but fully arthroscopic surgery is limited by the complex structure of the joint, and if the tumor is too large or not confined to the supra-articular cavity, open surgery combined with arthroscope is required when necessary. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Nanchang University (Engineering & Technology) is the property of Nanchang University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Sciencepaper is the property of China Sciencepaper and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To observe the effect of Tianjiang Xueshuantong pills in reducing aortic plaque formation in mice with atherosclerosis（AS），and to explore its mechanism. Methods Sixty-two ApoE-/- male mice were selected and fed with high-fat diet to establish the ApoE-/- mouse AS models. After the ApoE-/- mouse AS models were successfully es⁃ tablished，they were randomly divided into the model group，atorvastatin group，low- dose Tianjiang Xueshuantong pills group，high-dose Tianjiang Xueshuantong pills group，and Tianjiang Xueshuantong pills + lipopolysaccharide（LPS） group，with 12 in each group；another 12 C57BL/6 mice were taken as the normal group. Mice in the atorvastatin group were given intragastric administration of 400 µL atorvastatin（1. 5 mg/mL）；mice in the low-dose and high-dose Tianjiang Xueshuantong pills groups were given 4. 5 and 9 g/mL Tianjiang Xueshuantong pills 400 µL，respectively；mice in the Tianjiang Xueshuantong pills +LPS group were given 18 g/mL Tianjiang Xueshuantong pills solution 200 µL and 10 g/mL LPS 200 µL，and mice in the normal control group and model group were given 200 µL normal saline intragastrically. After 8 weeks of continuous gavage，the aorta was taken out and was used for oil red O staining to observe the formation of aortic plaques，and then we calculated the ratio of plaque area to the total area of aortic vessels. Blood was taken from the abdom⁃ inal aorta，and the levels of total cholesterol（TC），triglyceride（TG），and low-density lipoprotein cholesterol（LDL-C） were detected by automatic biochemical analyzer，and Enzyme-linked immunosorbent assay（ELISA）was used to detect se⁃ rum inflammatory factors interleukin-6（IL-6），interleukin-1β（IL-1β），tumor necrosis factor alpha（TNF-ɑ）and serum cell adhesion molecule monocytes Chemokine 1（MCP-1），intercellular adhesion molecule 1（ICAM-1），and vascular cell adhesion molecule 1（VCAM-1）levels. RT-PCR was used to detect the relative expression levels of TLR4/MyD88/NF-κB signaling pathway-related genes TLR4，MyD88，and NF-κB mRNA in the aortic tissues. Western blotting was used to de⁃ tect the expression levels of TLR4，MyD88，and NF-κB proteins. Results Compared with the normal group，the aortic AS plaque area increased significantly in the model group（P<0. 05）. Compared with the model group，the aortic AS plaque area gradually decreased in the atorvastatin group and low-dose and high-dose Tianjiang Xueshuantong pills groups （all P<0. 05）. Compared with the high-dose Tianjiang Xueshuantong pills group，the aortic AS plaque area increased sig⁃ nificantly in the Tianjiang Xueshuantong pills+LPS group（P<0. 05）. Compared with the normal group，the levels of TC， TG，LDL-C，IL-6，IL-1β，TNF-ɑ，MCP-1，ICAM-1，VCAM-1 significantly increased in the model group（all P<0. 05）. Compared with the model group，the above indicators decreased in the atorvastatin group and low-dose and high-dose Tian⁃ jiang Xueshuantong pill groups（all P<0. 05）. Compared with the high-dose Tianjiang Xueshuantong pills group，the above indicators increased in the Tianjiang Xueshuantong pills+LPS group（all P<0. 05）. Compared with the normal group，the expression levels of TLR4，MyD88，and NF-κB mRNA and protein significantly increased in the model group （all P<0. 05）. Compared with the model group，the expression levels of TLR4，MyD88，and NF-κB mRNA and protein decreased in the atorvastatin group and low-dose and high-dose Tianjiang Xueshuantong pills groups（all P<0. 05）. Com⁃ pared with the high-dose Tianjiang Xueshuantong pills group，the above indicators in the Tianjiang Xueshuantong pills+ LPS group significantly increased（all P<0. 05）. Conclusions Tianjiang Xueshuantong pills can inhibit the formation of aortic plaques in AS mice，and play a role in regulating blood lipids，inhibiting inflammatory responses，and protecting vascular endothelial function. High-dose Tianjiang Xueshuantong pills have more significant effects，and its mechanism may be related to inhibiting the activation of TLR4/MyD88/NF-κB signaling pathway. [ABSTRACT FROM AUTHOR]

Copyright of Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ordnance Industry Automation is the property of Editorial Board for Ordnance Industry Automation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Preventive Veterinary Medicine / Zhongguo Yufang Shouyi Xuebao is the property of Chinese Journal of Preventive Veterinary Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Engineering Management & Technology Discussion is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Engineering Science Research & Application is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Physical Education / Tiyu Xuekan is the property of Journal of Physical Education Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

High-efficiency water-saving irrigation engineering technology is facing a difficult situation to be extended popularly covering the field crops. A feasible way can be to optimize the water-saving irrigation regime, thereby to improve the efficiency of irrigation water. In this study, an optimization design was conducted to develop a water-saving irrigation regime in Xinzheng County, Henan Province, China. Three scenarios were set, including non-irrigation, average irrigation, and insufficient irrigation. The specific procedures were: First, Penman-Monteith formula was used to calculate indirectly the water volumes that the winter wheat required in the full and every growth stages. Second, the collected parameters were selected, such as meteorological data, the field moisture capacity, wilting coefficient of different types of soil texture, and hydro-geological data, thereby to estimate the total water resource that supplied in the full growth stage of winter wheat, including atmospheric precipitation, soil water content, and available water resource for irrigation. Third, the water sensitivity index of winter wheat was used to monitor the water demand of winter wheat in the different growth stages. Taking the maximum yield of winter wheat as a goal, a Jensen-model was selected to optimize the total supply water, and further distribute to the different growth stages of winter wheat. Finally, the obtained parameters were used, including the actual evapotranspiration, atmospheric precipitation, and soil water content, to calculate the irrigation water quota in different growth stages of winter wheat. The results showed that: 1) The total supply water was less than that in normal and dry years in Xinzheng County, Henan Province, China. Therefore, it was necessary to implement deficit irrigation regime. 2) Since the Jensen-model cannot be used to calculate directly the irrigating quota in different growth stages, the actual evaporation can be achieved for the weight coefficient of sensitivity index in different growth stages of winter wheat. Specifically, the allocation proportions of evaporations were 15.8%, 5.4%, 23.4%, 34.9%, 20.5% in seedling, over-wintering, booting, heading, and filling stages. 3) In Xinzheng County, the key irrigation periods of winter wheat were the heading and filling stages. In filling stages, the irrigating quota accounted for 73.3%-96.7% of the total irrigation amount in high flow years. In heading and filling stages, the irrigating quota accounted for 60.8%-68.5% and 32.2%-38.0% in normal flow years. In heading stages，the irrigating quota accounted for 53.9%-71.9% in dry years. In Jensen-model estimation, the yield of winter wheat under insufficient irrigation was 20.6%-40.9% higher than that under non-irrigation or average irrigation in normal flow year, and 23.8%-58.9% higher in dry year. Therefore, the amount of water resources available for irrigation in Xinzheng county was only 640-1225 m³/hm², 28.8%-55.0% of the quota given in Henan Province local standard-agricultural water. Nevertheless, the insufficient irrigation can be recommended for the field crops. The finding can offer the basic counties (cities) data for extending a deficit irrigation regime to other counties. [ABSTRACT FROM AUTHOR]

Copyright of Acta Sedimentologica Sinica is the property of Acta Sedimentologica Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Physical Education / Tiyu Xuekan is the property of Journal of Physical Education Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the problem of reducing the output accuracy of the manipulator when the dead-weight was too large when it was task-oriented, a multi-objective configuration design method based on gravity potential energy was proposed. Firstly, the module library of the manipulator was introduced, including the classification of the modules in the library and the mathematical expression of the modules. Secondly, the optimization desiyn standed of configuration was explained, the rationality and feasibility of the potential energy of gravity as the optimization objective were analyzed, and the functional expression of the operability and the need to overcome the evaluation standard of gravity at the task point were introduced. Finally, combined with the constraint conditions of the manipulator, genetic algorithm was selected to optimize the configuration of the manipulator. The feasibility of the design method was proved by an example of the spray manipulator configuration design. The results indicate that the spray arm designed by this method can ensure the flexibility and have less dead-weight, reduces the influence of the dead-weight of the arm on the output accuracy, and it provides a theoretical basis for the modular arm configuration design [ABSTRACT FROM AUTHOR]