38 results about "Environmental issue" patented technology

Processing test results from a plurality of individual semiconductor testers by analyzing each test result at an adaptive test engine. A centralized system jointly analyzes all the test results from the plurality of individual semiconductor testers. The adaptive test engine or the centralized system identifies, based on the analysis of each test result or the joint analysis of all the test results, one or more of: a test environmental issue, a tester variability issue, a tester calibration issue, a product variability issue, and a manufacturing process variability issue. The adaptive test engine or the centralized system determines whether one or more of the plurality of individual semiconductor testers causes one or more of the identified issues or whether semiconductor products tested by the plurality of individual semiconductor testers causes one or more of the identified issues.

This patent application discloses method and apparatus to cut an extended slot connecting a well to a substantial cross section of a desired producing formation whereby material can flow freely between the formation and the wellbore and at least partially overcome the flow limitations of low permeability formations without the environmental issues associated with hydraulic fracturing. It is further disclosed that the connection between said slot and the formation may be further enhanced by explosive or combustive processes that rapidly generate gas pressure within the large surface area of the slot, thereby changing its characteristics and forcing open additional fractures into the cross section of formation exposed to the slot. The method may significantly increase the recoverable percentage or natural gas from low permeability deposits such as shale and coal.

The present invention discloses a garbage collector for detecting a state of a garbage bag. The garbage collector comprises a container body with an upper opening, the upper portion of which is provided with an annular fixing member fixed to an outer wall of the container body, and the fixing member is provided with a plurality of clamping mechanisms. A photosensitive resistor is arranged on the inner wall of the inner cavity of the container body close to the opening and is electrically connected with a control device, and the control device is electrically connected with an alarm lamp. The alarm lamp is arranged on the outer wall of the container body; and when the garbage bag placed in the inner cavity of the container body has its pocket falling off or is broken, the photosensitive resistor is radiated by light entering from the opening of the container body, and the control device detects current of the photoelectric resistor and controls the alarm lamp to flash. The cleaning trouble or the environmental issues caused by falling or breaking of the garbage bag are avoided, the staff can conveniently replace the garbage bags in time, and can also understand the state of the garbage bags in the distance. The garbage collector is convenient and comfortable to use.

The invention provides a method for recycling well flushing waste water in in-situ leaching uranium exploration. The method comprises the steps that (a), well flushing waste water of a liquid pumping well and a liquid injection well for in-situ leaching uranium exploration is elevated to the ground surface and then settles through a settling basin, and underflow slurry of the settling basin is drained into an evaporation pond; (b) clean liquid 1 is fed into a hydrocyclone, clean liquid 2 discharged out from the hydrocyclone enters the step (c), and a sand-containing solution discharged out from the hydrocyclone returns to the settling basin for closed cycle treatment; (c) the clean liquid 2 enters a self-cleaning filter, clean liquid 3 is obtained through filtering and enters the step (d), and waste liquid generated by automatic reverse flushing enters the hydrocyclone for closed cycle treatment; (d) the clean liquid 3 enters a bag filter, and clean liquid 4 obtained through filtering enters a buffer pool; and (e) the clean liquid 4 in the buffer pool enters the liquid injection well through high-pressure injection. By means of the method, zero emission of waste water is realized, and the problems that due to outwards drainage of well flushing waste water, an evaporation pond occupies the land, environmental issues are caused and uranium recovery is difficult are solved.

The invention provides a bipolar membrane method for recovering lithium hydroxide from a solution. The lithium sulfate solution is treated with a bipolar membrane system, and the produced water after the bipolar membrane system treatment is lithium hydroxide and sulfuric acid. The invention not only solves the problem of environmental protection, but also reduces the consumption of alkali and acid, realizes clean production, saves energy and reduces emissions, and reduces operating costs.

The invention discloses an incentive method for multi-relay node cooperative game. The method is applied to the wireless ubiquitous environment, solves the complex communication problem in the wireless ubiquitous environment, uses game theory to model multi-relay forwarding nodes, and establishes The utility function and cost function of the forwarding node alliance select the optimal relay node forwarding alliance for the source node that needs data transmission service, which greatly promotes the enthusiasm of the relay node for forwarding. At the same time, the method is very simple and easy to implement, has good application prospects, and can well avoid the problem of a single mechanism.