, 1989 该项研究经过野外调查、观测、室内分析和田间定位试验，在深入阐明矿区土壤基本特征、采金复田前后土壤理化性质变化规律的作物田间试验的基础上，确定了复田的工艺指标，制定了不同类型土壤的复田工艺，提出了复田土壤的增产措施，使多种农作物的产量在复田的当年就接近或达到当地采金前的产量水平。对创造适合于高产土体结构的技术措施在国内是一种突破。并对人工造田，建设理想的土体结构在理论上进行了有益的探索，不仅为恢复当地农业生产保护国土资源提供了一种有效措施，也为砂金工业的顺利发展铺平道路。同时 ...
黄福珍 +7 more
core
[Liquid-liquid interface synthesized covalent organic framework films for efficient extraction of okadaic acid from seawater]. [PDF]
Se PuZhang WM, Fang M, Zhang L.
europepmc +1 more source
[Experimental curriculum design for undergraduates based on the improvement of scientific research abilities： taking determination of pyrimidine fungicides in soil by QuEChERS-gas chromatography-mass spectrometry as an example]. [PDF]
Se PuLyu F, Shan X, Zhao R, Zheng W.
europepmc +1 more source
[Application and challenges of tissue engineered scaffolds in treatment of long-segment laryngotracheal stenosis]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYu Q +7 more
europepmc +1 more source
[Application of whole-process nutritional management based on IKAP theory in patients undergoing radical cystectomy with ileal conduit diversion]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanXu L, Pi S, Shen Q, Liu Y, Liu J, Xue J.
europepmc +1 more source
Gongye shui chuli由于油田开发采出液含水率上升和海上平台空间的限制，亟需紧凑型污水处理设备用于对海上油田含油污水处理。对此设计了卧式紧凑型旋流气浮装置，通过Fluent数值模拟方法对该装置旋流筒区域的流场分布及油水分离性能开展了系统研究，探究了旋流筒结构、入口管径、含油污水入口速度和入口含油率等因素对油水分离效果的影响。结果表明，在入口管径为20 mm，含油污水入口速度为2 m/s时，采用导流叶片的旋流筒结构能获得较好的流场分布；含油污水入口速度越大切向速度衰减越严重；旋流筒在高度为100~300 mm时切向速度衰减较大，
龚俊 +4 more
doaj
[<i>Yiqi Jiedu</i> Formula inhibits proliferation, invasion and migration of nasopharyngeal carcinoma cells by inhibiting the AKT1/GLUT1 signaling pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXu H +8 more
europepmc +1 more source
[Parent-child relationship and preschoolers' social skills: the cross-time chain mediating role of executive function and emotion regulation]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLi YW +6 more
europepmc +1 more source
[Clinical efficacy of vocal fold injection with fat and rectus abdominis fascia combined with voice training in the treatment of glottal insufficiency]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanTao G +6 more
europepmc +1 more source
[Analysis of early complications and risk factors in patients with amyotrophic lateral sclerosis after percutaneous endoscopic gastrostomy]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanTian X, Song Z, Huang Y, Yao W.
europepmc +1 more source