68 results about "Tidal zone" patented technology

Devices, methods and systems for wave and water level measurement using a single DC (direct current)-coupled CW (continuous wave) Doppler radar for detecting water elevation changes in time when installed up to several meters from the water surface. The radar is wireless and can stream continuous data to a local PC (personal computer) or base station in range of its radio. The radar can sample up to 40 Hz and can run on batteries for continuous sampling. The radars can include multiple radar configurations of 1, 2 and 4 radar configurations. Applications for this radar can include the measurement of beach run-up, free surface elevation in tidal zones, and storm surge elevations near bridges and critical infrastructure during storm events.

The invention provides a component assembly-type roll-on berth structure and an assembly method. The component assembly-type roll-on berth structure comprises supporting piles, cross beams, steel reinforcement cages, prefabricated plates, reinforced concrete connectors and a reinforced concrete pavement, wherein the supporting piles are driven into the seabed; the cross beams are fixedly arranged on the upper parts of the supporting piles; the steel reinforcement cages are fixedly arranged on the top parts of the supporting piles; the fabricated plates are lap jointed on the cross beams; the reinforced concrete connectors are cast-in-place reinforced concrete and are fixedly connected with the supporting piles, the cross beams and the prefabricated plates; the reinforced concrete pavement is cast-in-place reinforced concrete, is cast on the upper parts of the prefabricated plates and the cross beams, and is fixedly connected with the reinforced concrete connectors; and the slope ramp roll-on berth structure is integrally formed. According to the component assembly-type roll-on berth structure, the amount of cast-in-place reinforced concrete is small at tidal zones; only the connectors and the pavement are cast-in-place reinforced concrete; and most of the components are prefabricated components and types are fewer, so that construction is very convenient; the construction period is short; the construction cost is low; the quality is easy to ensure; and the component assembly-type roll-on berth structure has the advantages especially at open sea islets and other places with poor construction conditions.

A cultivation process by constructing pool in intertidal region, wherein an area similar the natural sea is constructed for providing a growth environment superior to the natural sea region, water drainage is proceeded everyday in the pool, and waves are formed during water inflow, which increasing the oxygen-containing volume of the water body, and culture excrement and old water can be discharged during water drainage. The cultivation investment needed by the process is less than other cultivation modes, and no contamination is produced.

The invention belongs to the technical field of seaweed cultivation, and relates to a seaweed cultivation method. Natural seawater is contained in a seawater tank, and the temperature and the ultraviolet lamp irradiation are controlled to conduct disinfection treatment for standby application; selected and collected seed seaweeds are washed, disinfected and dried, then conventional culture media are selected according to different seaweed types, temperature control and dim-light static cultivation are carried out, and then enzymolysis or direct cultivation is carried out; after to-be-cultivated somatic cells, to-be-cultivated gametophytes or to-be-cultivated callus mature, bolting-silk filtering, sectioning processing and / or centrifugal collecting are carried out, the somatic cells, the gametophytes or the callus are placed into the culture media according to the requirements of different kinds of seaweeds, the temperature, the illumination and the osmotic pressure are controlled for cultivation, and the somatic cells, the gametophytes / sporophores and the callus of the seed seaweeds are attached to the silk net faces in the culture media; silk nets are then manually scattered into the offshore or the tidal zone to conduct conventional seawater cultivation. The seaweed cultivation method is simple in technology, low in cost, convenient to operate, short in seedling growing time, good in cultivation effect and high in cultivation yield, and manpower is saved.

The invention discloses a solvent-free epoxy coating, comprising a main agent and a curing agent in the weight ratio of 8:1. The main agent comprises the following components: 30-40 parts of aliphatic silicone modified epoxy resin, 7.0-10.0 parts of an elastic epoxy active diluent, 0.3-3.0 parts of a wetting and dispersing agent, 0.1-0.3 part of an antifoaming agent, 0.1-0.3 part of a defoaming agent, 1.0-2.0 parts of an anti settling agent, 0.1-3.0 parts of an anti sagging agent, 0.5-1.0 part of a silane coupling agent, 2-5 parts of a pigment, 11.0-22.0 parts of glass flake, and 30.0-35.5 parts of feldspar powder; and the curing agent comprises the following components by weight: 95.0-97.0 parts of modified amine and 3-5 parts of a curing accelerator. The paint can play good anticorrosion protection effect on the steel in tidal zone of the sea.