泥沙 - Open Access .click

Results 151 to 160 of about 3,176 (201)

Some of the next articles are maybe not open access.

Engineering Technology and Quality Management
水利工程中的泥沙问题对工程安全和水资源利用具有重要影响。泥沙的沉积会导致水体阻塞、坝体冲刷及设备损坏，进而影响水利工程的正常运行与长期稳定。针对泥沙问题，需采用有效的治理技术，包括泥沙捕捉与排放、疏浚作业、流域管理以及水土保持措施。这些技术旨在减少泥沙对工程的负面影响，保障水利工程的功能与安全。泥沙问题的治理不仅依赖于单一技术的应用，还需综合考虑地质条件、水文特征以及工程设计等因素，以实现最佳的治理效果和经济效益。
思孙 +4 more
semanticscholar +1 more source

多泥沙河道引水枢纽闸室混凝土抗磨修复方法

Engineering Technology and Quality Management
新疆阿克苏河发源于天山东段南坡，河道来水量年内变化幅度大，且悬移质含沙量较大。现状拦河式水利枢纽修建于上世纪70年代。经多年运行，建筑物都出现了不同程度的磨损。为保证工程灌溉、防洪等效益的发挥，每年都需投入资金进行修复。本文以对阿克苏渠首闸墩修复工程为例，采用新型快速修复抗冲磨砂浆及环氧混凝土对冲刷磨损面进行修复，该方法修复速度快、维护成本低、效果持久。
玉忠罗
semanticscholar +1 more source

Retraction of Old English [æ æ] and bifurcation of Danish [a] and the articulatory gesture in dependency phonology

Lingua, 1983
Abstract There have of late appeared alternative generative theories stressing the inadequacies of the standard model of generative phonology. One of the two objects of this paper is to present an outline of one such theory, dependency phonology, including a tentative proposal concerning the consonantal component within this model.
openaire +1 more source

潮汐通道水动力和泥沙的湍参数化效应:南海北部崖门水道