51 results about "Level ii" patented technology

A technique for demodulating secondary data from a hierarchically modulated signal includes a number of steps. A gray coded eight phase shift key (8-PSK) hierarchically modulated signal is received that includes primary data and secondary data. An imaginary portion of the signal is determined and a real portion of the signal is determined. An absolute value of the real portion of the signal may then be subtracted from an absolute value of the imaginary portion of the signal to provide the secondary data. The gray coded 8-PSK hierarchically modulated signal may be a uniform gray coded 8-PSK hierarchically modulated signal or a non-uniform gray coded 8-PSK hierarchically modulated signal.

A graphical user interface centralizes Level I quote information in the center of a circular display while Level II (or regional) data appears in peripheral bands layered on the outside of the Level I information. The interface is also split into two main sections, a “bid” quote information section and an “ask” quote information section. The bid quote information appears on the left of the interface while the ask quote information appears on the right side of the interface. Through clicking in any one of the peripheral bands, an order can be placed at that price point.

The invention relates to a large-thickness structural steel plate for a high-rise building and further relates to a production method of the steel plate at the same time. The steel plate is formed by melting the following component percentages by weight: 0.16-0.19% of C, not more than 0.55% of Si, 1.40-1.55% of Mn, not more than 0.012% of P, not more than 0.003% of S, 0.020-0.050% of TAl (total aluminum), 0.020-0.30% of Nb, 0.035-0.050% of V, not more than 0.30% of Ni, not more than 0.30% of Cr, not more than 0.05% of Ti, and the balance of Fe and inevitable impurities. The production method comprises the steps as follows: smelting; refining; continuously casting; stacking; heating; rolling; stacking and slowly cooling; detecting defects; normalizing; and obtaining the finished steel plate. The shop sign of the steel plate is Q390GJC / Z35, the delivery state of the steel plate is normalization, continuous casting blanks with cross sections of 330 mm * 2400 mm are adopted to form the steel plate, the maximum thickness of the steel plate is 120 mm, and the requirements of the level II in the JB / T4730.3-2005 detection standard are met; and the steel plate has the characteristics of capability of being formed by the continuous casting blanks, larger thickness, higher strength and toughness, good lamellar tearing resistance and the like, and is suitable for manufacturing structural members for the high-rise building.

The invention relates to a technical method for recovering carbon from coal gasification ash residues. According to the method, pre-deashing is conducted through a deashing pool, pre-processing is conducted through a coal slurry preprocessor, and rough concentration and fine concentration are conducted through a flotator. The technical method recovers clean coal from the ash residues, thereby being scientific and optimal and achieving energy saving and environment friendliness, and meanwhile, the problems of resource waste and high ash residue utilization difficulty of a coal gasification system caused by overhigh carbon content in the gasification ash residues when operation parameters such as coal types, the oxygen-coal ratio and furnace temperature are changed are effectively solved. Bymeans of the technical method for recovering carbon from the coal gasification ash residues, on the one hand, secondary utilization of residual carbon in the ash residues can be achieved, and on theother hand, the residues can reach the national pulverized ash standards of the level I, the level II and the level III. Coal dust in the ash residues is effectively recovered, the resource utilization rate is increased, resource utilization of low-carbon ash residues is further achieved, and meanwhile environmental pollution caused by stacking of a large amount of unrecycled ash residues can be avoided.

The invention discloses a large-scale tube body welding technology. The large-scale tube body welding technology includes the steps that blanking of tube body steel plates is carried out, the circumference within 120mm is subjected to ultrasonic flaw detection, and qualification is required to reach the level II; and splicing grooves are formed in annular plates, straight slit grooves are formed in tube bodies, dye penetrant inspection is carried out after grinding, and the length of the tube body steel plates is 2-3mm less than the actual size length; the annular plates are spliced, manual welding is adopted for priming, weld preheating is carried out with the preheating temperature being equal to or greater than 100 DEG C, end tabs are added for submerged-arc welding, the submerged-arc welding is carried out after regulation of working faces and back gouging, and heat preservation is carried out after welding; plates are rolled, straight slits are welded after the plates are bent toa round shape, the manual welding is used for priming, the preheating temperature is equal or greater than 100 DEG C, end tabs are added for submerged-arc welding, the submerged-arc welding is carriedout after the regulation of the working faces and the back gouging, and tube segments are rewound after welding. The large-scale tube body welding technology is simple, welding defects can be avoidedduring welding, the stability of the welding can be ensured, and high strength and good stiffness after welding of the tube bodies can be achieved.

Provided is a method for breeding beef cattle. A selected cowhouse site is no smaller than 500 m away from traffic arteries of level II or above, towns and plants, 6-8 h solar radiation is maintained every day for the beef cattle, feed is first rough and then refined, the beef cattle first feed and then drink water, and minerals and microelements should be supplemented. In order to obtain high-quality beef cattle, in two months after cows are pregnant, 1-2 kg of concentrated feed is supplemented each day and is fed averagely to each meal; and in two months after the cows lay cows, 1-2 kg of concentrated feed is fed each day and is supplemented averagely to each meal. The reproductive capacity of the high-quality beef cattle is improved, recycled straw forms feed through fermentation to be fed to the beef cattle, and an environmental pollution problem caused by straw burning is solved.

The invention discloses an evaluation method for occurrence degree of insect damage to tea trees in tea regions of southern Anhui, and a prevention method of the insect damage to the tea trees in thetea regions of the southern Anhui. According to the evaluation method, occurrence quantities of empoasca flavescens, tea geometrid and aleurocanthus spiniferus are taken as the basis, and the overalloccurrence level of the insect damage to tea gardens is judged by comparing the ranges of the occurrence quantities; on the basis of the evaluation method, three green prevention technical modes are developed correspondingly in the prevention method, so that the situations that conventional prevention methods are simple and cannot be quantized and prevention modes cannot be selected scientificallyand reasonably according to different insect damage occurrence degrees are changed. The evaluation method has the advantages that the occurrence degree of the insect damage to the tea trees in the tea regions of the southern Anhui is divided into three levels, namely level I, level II and level III, so that judgment of the insect damage occurrence degree can be quantized, and foundation is laid for research on the prevention modes; the prevention method has the advantages that the corresponding prevention modes can be selected specifically according to the different insect damage levels, so that simplification of conventional methods and techniques and high pesticide residue volume are changed fundamentally, and quality and safety of tea leaves are guaranteed effectively.

The invention discloses a pavement base course forming method adopting aeolian sand as a raw material. The pavement base course forming method superficially comprises the following steps that brick powder is made; the brick powder, level-II pulverized fuel ash and P.O42.5 cement are sequentially added into aeolian sand, and full stirring is performed in a stirrer to obtain a dry mixed powder; water is added to the obtained dry mixed powder, and full stirring is performed in the stirrer to obtain mixed slurry; the obtained mixed slurry is spread on a pavement, then primary compression is performed by using a smooth wheel roller, then normal rolling compaction is conducted on the pavement till the measured compaction degree of a pavement base course after rolling compaction is 97% or above, and finally pavement maintenance is performed to obtain the formed pavement base course. The cheap aeolian sand easy to obtain is adopted to serve as the main raw material, and the cost for building the pavement base course is reduced.