Search results

The coal mining subsidence area of Shanxi locates in the area with low hill and low water table.
In Shanxi province, the reclamation process used for the subsidence area with low water table and no ponding, as well as the coal gangue area is applied.
And the construction technology related to reclamation projects such as irrigation and drainage, water, soil and water conservation, watershed management, gangue mountain extinguishment and environment protection may refer to the special requirements [4].
Ecological restoration plan is made under the conditions of comprehensively taking into account various factors, utilizing professional knowledge and coordinating the requirements of various projects and the relationship between various local departments, to reasonably determine the scale and sequence of restoration project, thus ensuring that restoration work operates step by step, feasibly and beneficially.
From the top to bottom, to form a coordinating body in agriculture, forestry, environmental protection, and water conservancy departments.

To solve the main methods of fouling water descaling and high pressure gas descaling two.
Water descaling will water spray system installed in the cabinet, the pipeline, nozzle and drain composition, water is commonly tap water, the pressure of 0.3 MPa, but this kind of descaling down time long, affects the normal use of the unit.
High pressure gas descaling system USES and water spray system similar structure, but its pipeline for high pressure pipeline, high pressure air using compressed air or nitrogen, pressure is 0.8-1.5 MPa, the operation is simple, descaling rapidly, and improve the operation efficiency of the unit.
Through the professional software for automatic dynamic balance calculation results.

Convergence accuracy of the instrument measured value is not only related with the professional skills of measurement, but also affected by the hook attached to the foreign bodies and the temperature inside of the tunnel.
The heavy rainfall brought a lot of rain water seeping into the soft rock and making loose rock constantly reinforced, resulting in surface subsidence with a large variation.
The water of the tunnel arch angle on both sides was still not clear, the danger was looming.
The mechanical strength of the surrounding rock of tunnel arch angle is weakened due to both sides of the excavated plane soaked in water for half a month.
The tunnel drainage is too lag that a great amount of water can be seen everywhere in the hole.

Architects understand their professional duty to lead to the “greening” of construction, so they began to focus more on sustainable and green building design for their clients.
The air-water heat pump system as well as the passive house building envelope reduced impact by approximately 20%.
A condensing gas boiler is used for domestic central space heating and hot water preparation.
Heat pump is used as the source of space heating and hot water preparation, which is stored in 300 l insulated hot water tank.
This is due to the fact that heat pump is used as the source of space heating and hot water preparation in house 2.

To generate tsunami-type waves, a special tank was placed in the area of water supply of the test rig.
During each experiment, measurements were performed of the wave parameters and the maximum velocity of the water flow.
After the wave passed the upstream platform face, the water level dropped sharply for some time.
Consequently, water pressure decreased for some time too.
EERI/FEMA NEHRP 2006 Professional Fellowship Report. 34 p

In the 1st type, water action weakens or damages the adhesion bonding within the asphalt binder.
In the 2nd type, asphalt binder peels off the aggregate surface due to water action.
A group of pavement professionals and researchers believes that antistripping agents are helpful to reduce moisture damage or stripping.
The SB has been widely used as a binder modifier, usually as dispersion in water (latex).
“Measurement of the Forces Between Gold Surfaces in Water by Atomic Force Microscopy.”

The corresponding database can commonly be designed through professional software such as SQL server, Oracle, or others developed by one’s own.
Automatic data collecting platform consists of kinds of intelligent monitoring units, which can gauge information like stress, strain, displacement, temperature, humidity, deformation, underground water, seismic wave.
This system was examined and used in deep pit engineering of HengLong square in Jinan city, underground water table, pit deformation and supporting structure stresses were measured and the data facilitated the pit excavation and design optimization.
After studied on the duration curves of the slope top lateral displacement, settlement, underground water table and deep lateral displacement 20days before failed, L.
Feng[7] concluded that the monitoring data of displacement and underground water table of a deep pit changed suddenly at a considerable magnitude when reaching critical failure state, and informative monitoring is of value and importance to indicate an early alarm in the engineering of deep pit excavations.

This gas is highly toxic where in the presence of water it will form corrosive acid.
Therefore, these absorbents are highly soluble in water.
The required amount of CuCl2.2H2O (Merck) was weighed and dissolved in distilled water.
The solvent was then evaporated using a water bath at 80 °C followed by overnight drying in the oven at 100 °C.
Gulf Professional Publishing, Oxford, UK, 2011

According to document retrieval, it is reported that the fiber optic sensor with non-electric detection, long-distance detection and high sensitivity is applied to quality seed cultivation, irrigation and water conservancy as well as agricultural planting; after constant experiments and applications in recent years, these sensors have already had good stability, applicability for system requests, excellent cost performance and other features, and been increasingly adopted in agricultural field.
Utilizing the Internet of Things technology and based on the Internet of Things, the farmland automatic water-saving irrigation system features real-time collecting and transmission of sensor data, irrigating pipe network controlled by irrigation controller, real-time irrigation by zones and soil humidity adjustment, spatiotemporal difference and efficient water use required by precision agriculture.
Controlling the irrigation (water pump, sprinkler and drop irrigation) equipment and fertilization equipment by computer chips can be totally settled.
In the Internet of Things system for field crop growth monitoring, perception layer is composed of acquisition sensor for agriculture use, RFID reader writer and wireless sensor network consisted of a number of collection equipment, used for dynamic collection of field crop growth forms and environmental information; network layer is composed of wireless and wired data transmission network, data analysis and control center and professional processing system, used for the transmission, storage, analysis and processing of dynamic collection data; application layer is composed of agricultural research, agricultural production, environmental monitoring, production control and other parts, used for application services of data, such as scientific research service, monitoring service, control service. 2．Several Urgent Problems 2.1 Reasonability of Collecting Point Distribution Design The basic input on the Internet of Things construction is a large amount of money, in which the acquisition
Farmland Automatic Water-Saving Irrigation System Based on the Internet of Things.

Project profile Planning area of the project is 33.75 square kilometers (the water area is included).
Goals Function orientation.Tourism services are provided mainly in the tourism integrated service area which includes tourism service center, local product business, ecological inns, pastoral education center, cultural theatre, farming household; Water amusement and rest is in the wetland and rural scenery area constituted by wetland garden, birds’ heaven, fishing in wetland, boating in wetland, water's edge of art beauty, and pastoral post; Ecological experience happens in the Lohas picking experiencing area where there are Picking Areas in greenhouse, Orchard Picking Area, base for organic vegetables, ecologic restaurants, Lohas farm, Lohas herb house and others; pastoral mood can be experienced in the outward survival and development area which is composed of pastoral development camp, military sports park, water exploration, children's playground, DIY agricultural workshop, rural barbecue and bonfire party; as for movie & TV culture, there is a movie & TV culture and media area including
The projects provide exciting experience and can be used for high quality professional training.
Agricultural and scientific wonders, water-borne amusement, countryside walk, characteristic native residential village, etc. will provide multiple choices.