Works by 郭大勇

Results: 16

气动先导阀动态特性仿真优化研究.

Published in:

Machine Tool & Hydraulics, 2024, v. 52, n. 11, p. 204, doi. 10.3969/j.issn.1001-3881.2024.11.030

By:

郭大勇;
司国雷;
周亚玲

Publication type:

Article

气动电磁阀动态特性优化.

Published in:

Machine Tool & Hydraulics, 2023, v. 51, n. 20, p. 199, doi. 10.3969/j.issn.1001-3881.2023.20.031

By:

郭大勇;
司国雷;
陈君辉;
王嘉磊

Publication type:

Article

压力平衡气动比例阀设计与试验研究.

Published in:

Machine Tool & Hydraulics, 2023, v. 51, n. 18, p. 122, doi. 10.3969/j.issn.1001-3881.2023.18.019

By:

郭大勇;
司国雷;
唐兵

Publication type:

Article

一种高效直驱液压角度位置伺服控制系统的研究和实现.

Published in:

Machine Tool & Hydraulics, 2023, v. 51, n. 9, p. 124, doi. 10.3969/j.issn.1001-3881.2023.09.021

By:

郭大勇;
陈照弟;
司国雷

Publication type:

Article

一种高效直驱液压角度位置伺服控制系统的研究和实现.

Published in:

Machine Tool & Hydraulics, 2023, v. 51, n. 8, p. 124, doi. 10.3969/j.issn.1001-3881.2023.09.021

By:

郭大勇;
陈照弟;
司国雷

Publication type:

Article

气动电磁阀ＰＷＭ控制可控占空比工作范围的拓宽.

Published in:

Machine Tool & Hydraulics, 2023, v. 51, n. 6, p. 176, doi. 10.3969/j.issn.1001-3881.2023.07.030

By:

郭大勇;
司国雷;
唐兵;
王嘉磊

Publication type:

Article

Zn 污染对石灰性水稻土Fe氧化和还原的影响.

Published in:

Journal of Henan Agricultural Sciences, 2021, v. 50, n. 7, p. 57, doi. 10.15933/j.cnki.1004-3268.2021.07.008

By:

范浩隆;
王旭刚;
孙丽蓉;
赵旭;
郭大勇;
石兆勇

Publication type:

Article

土地利用方式对豫西丘陵区土壤团聚体稳定性及其化学计量特征的影响.

Published in:

Journal of Henan University of Science & Technology, Natural Science, 2024, v. 45, n. 3, p. 88, doi. 10.15926/j.cnki.issn1672-6871.2024.03.011

By:

郭大勇;
刘海燕;
杜鹃;
曾祥;
王翔宇;
周子琪;
刘雪涛;
寇太记;
陈鲜妮

Publication type:

Article

基肥减量对冬小麦生长、产量构成和氮肥利用效率的影响.

Published in:

Journal of Henan University of Science & Technology, Natural Science, 2020, v. 41, n. 3, p. 81, doi. 10.15926/j.cnki.issn1672-6871.2020.03.013

By:

徐晓峰;
石兆勇;
常会庆;
郭大勇;
吕元丰

Publication type:

Article

石灰性水稻土中硝酸盐依赖型与光合型亚铁氧化过程.

Published in:

Acta Pedologica Sinica / T'u Jang Hsueh Pao, 2023, v. 60, n. 1, p. 127, doi. 10.11766/trxb202104010174

By:

陈志怀;
王旭刚;
孙丽蓉;
董乐恒;
郭大勇;
石兆勇

Publication type:

Article

秸秆源性碳在黑土和褐土中的转运及其对氮肥的响应.

Published in:

Acta Pedologica Sinica / T'u Jang Hsueh Pao, 2022, v. 59, n. 5, p. 1248, doi. 10.11766/trxb202105210059

By:

陈鲜妮;
吴姗薇;
寇太记;
徐鹏飞;
谭晓华;
郭大勇

Publication type:

Article

豫西旱作褐土剖面土壤的氧化铁还原与亚铁氧化特征.

Published in:

Acta Pedologica Sinica / T'u Jang Hsueh Pao, 2018, v. 55, n. 5, p. 1208, doi. 10.11766/trxb201712070430

By:

王旭刚;
孙丽蓉;
张颖蕾;
徐晓峰;
郭大勇;
石兆勇

Publication type:

Article

黄河中下游湿地土壤铁还原氧化过程的温度敏感性.

Published in:

Acta Pedologica Sinica / T'u Jang Hsueh Pao, 2018, v. 55, n. 2, p. 120, doi. 10.11766/trxb201708110352

By:

王旭刚;
孙丽蓉;
马林娟;
郭大勇;
徐晓峰

Publication type:

Article

4UGS2 型双行甘薯收获机的研制.

Published in:

Transactions of the Chinese Society of Agricultural Engineering, 2018, v. 34, n. 11, p. 26, doi. 10.11975/j.issn.1002-6819.2018.11.004

By:

李涛;
周进;
徐文艺;
李青龙;
张华;
秦喜田;
李娜;
李维华;
郭大勇

Publication type:

Article

精囊镜探查技术在慢性精囊炎诊治中的应用价值.

Published in:

Journal of Modern Medicine & Health, 2018, v. 34, n. 11, p. 1714, doi. 10.3969/j.issn.1009⁃5519.2018.11.037

By:

李新伟;
张绍辉;
郭大勇;
高喆

Publication type:

Article

小果甜柿遗传转化体系建立及其抗冻性遗传改良的初步研究.

Published in:

Journal of Fruit Science, 2024, v. 41, n. 8, p. 1678, doi. 10.13925/j.cnki.gsxb.20240201

By:

邱梅逸;
陈文兴;
徐莉清;
郭大勇;
张青林;
罗正荣

Publication type:

Article