73results about How to "Improve operating profit" patented technology

A synchronous memory device which generates a data output enable signal corresponding to a set CAS latency mode including: a control clock generator for generating an A-type first control clock and a B-type first control clock; a first redundancy enable signal generator for shifting an internal read signal by a predetermined interval in synchronization with one of the A-type first control clock and the B-type first control clock and generating a plurality of first redundancy enable signals; a second redundancy enable signal generator for synchronizing the plurality of first redundancy enable signals with a DLL clock and generating a plurality of second redundancy enable signals; and an output enable signal generator for selecting one redundancy enable signal corresponding to the set CAS latency mode among the first redundancy enable signals and the second redundancy enable signals and generating the selected redundancy enable signal as the data output enable signal.

The invention discloses a carbon fiber composite. The carbon fiber composite comprises a metal inner layer, a local reinforcement layer, a reinforcement layer and an outer protection layer in sequence, wherein the reinforcement layer is formed by preferably winding large-tow carbon fibers. The invention also discloses a preparation method of the carbon fiber composite. The invention further discloses a tank prepared from the carbon fiber composite. The tank can be used for carrying liquid, powder, gases, pulp and other substances. The carbon fiber composite and the tank have the beneficial effects that compared with the traditional metal tanks, the tank prepared from the carbon fiber composite is lightened by more than 50%; the carrying capacity of a tank car can be obviously improved, and fuel consumption and carbon dioxide emission can be reduced; and the tank has the double effects of increasing the operating profits and reducing the environmental pollution.

In a semiconductor device constituted of stacked semiconductor chips, in order to independently test each of the chips, a second chip is disposed to face a first chip, with a second interconnection terminal thereof connected to a first interconnection terminal of the first chip. First and second external terminals of the first and second chips are formed on surfaces of the first and second chips, the surface being on a same side of the first and second chips. Therefore, even after the first chip and the second chip are pasted together, it is possible to test the first chip and the second chip while operating them independently. Further, since test probes or the like can be brought into contact with the external terminals of the first chip and the second chip from the same side, it is possible to simultaneously test the first chip and the second chip.

Systems and methods for controlling fluid flow utilizing a synthetic jet actuator, are provided. An example of a synthetic jet actuator system includes a synthetic jet actuator including a dual bimorph subsystem to provide low, medium, and high synthetic jet velocities and / or fine flow control response, and an arc-forming subsystem to provide enhanced pressure, velocity, and mass flow performance, enhanced flow control response, and / or heating of the fluid within the bimorph chamber to extend the performance or operating margin of the dual bimorph subsystem of the synthetic jet actuator. The arc-forming subsystem includes a pair of electrodes interfaced with inner surface walls of the dual bimorph subsystem. Various configurations of power supplies can be utilized to provide simultaneous function to both the subsystem and the arc-forming subsystem to allow selective activation.

In a semiconductor memory device, a memory cell is connected with a local sense amplifier and a global sense amplifier via a local bit line and a global bit line. The local sense amplifier is a single-ended sense amplifier including a single MOS transistor, which detects a potential of the local bit line which varies when reading and writing data with the memory cell. The threshold voltage of the MOS transistor is monitored so as to produce a high-level write voltage and a low-level write voltage, which are corrected and shifted based on the monitoring result so as to properly perform a reload operation on the memory cell by the global local sense amplifier. Thus, it is possible to cancel out temperature-dependent variations of the threshold voltage and shifting of the threshold voltage due to dispersions of manufacturing processes.

In a single intersection type (open bit line type) dynamic RAM, sub-arrays are disposed to the left and right sides of a sense amplifier column placed at the center. Each sub-array has a multiplicity of dynamic memory cells. In the subarrays located to the left and right of the sense amplifier column, bit lines in the same row constitute a complementary bit line pair. In each subarray, shielding wiring patterns that are formed parallel to, and in the same wiring layer of, these bit lines are disposed between the bit lines. All of these wiring patterns are set at a fixed potential, such as a power supply potential. Thus, interference noise between adjacent bit lines is effectively reduced.

The invention discloses a hybrid pressurized multi-stage filling and hydrogenation device which comprises the following composition units: a high-pressure unloading pry, a high-pressure compressor pry, a multi-stage filling high-pressure energy accumulator, a 70MPa high-pressure hydrogenation machine, a low-pressure unloading pry, a low-pressure compressor pry, a low-pressure energy accumulator, a35MPa low-pressure hydrogenation machine, a first four-way valve provided with a port a, a port b, a port c and a port d, a second four-way valve provided with a port e, a port f, a port g and a porth, and a water chilling unit used for cooling the high-pressure compressor pry and the low-pressure compressor pry. All the composition units are connected through a pipeline system, so that the purposes of 35MPa / 70MPa hybrid filling, low-pressure hydrogen multi-stage hybrid pressurization, and enabling the high-pressure energy accumulator and the low-pressure energy accumulator as mutual standbyhydrogen sources are achieved. On the basis of not influencing an original 35MPa skid-mounted hydrogenation device, pressurization and capacity expansion are carried out, wherein the hydrogenation pressure is increased from 35MPa to 70MPa / 35MPa for hybrid pressurization, and the daily hydrogenation scale is increased from not more than 500kg / d to 1000kg / d and above; and a pressurization and capacity expansion structure provided by the scheme has the advantages of being simple in structure, convenient to install, small in modification workload, low in cost and the like.

At the time of, for example, a set operation (SET) for making a phase-change element in a crystalline state, a pulse of a voltage Vreset required for melting the element is applied to the phase-change element, and subsequently a pulse of a voltage Vset that is lower than Vreset and is required for crystallizing the element is applied thereto. And, the magnitude of this voltage Vset is then changed depending on the ambient temperature so that the magnitude of the voltage Vset is small as the temperature becomes high (TH). In this manner, a margin of a write operation between the set operation and a reset operation (RESET) for making the element to be in amorphous state is improved.

In a semiconductor memory device including memory cells each having two inverters connected in a cross-coupled configuration to hold High data and Low data as a pair and two access transistors, a plurality of word lines, and a plurality of bit lines, the potential of the selected one of the plurality of word lines is controlled to be lower than a potential obtained by adding up the potential of one of Low-data-holding power sources each for holding the Low data at any time other than during a read operation and the threshold voltage of each of the access transistors.

Nonvolatile evaluation memory cells are programmed to be a plurality of different values in advance, respectively. An internal voltage generating circuit can change the value of an internal voltage according to adjusting signals. To make the internal voltage close to its expected value, a voltage adjusting circuit outputs adjusting signals in accordance with cell currents that flow through the evaluation memory cells, respectively, in a read operation on the evaluation memory cells. As a result, the interval voltage that is shifted from its expected value due to variations in manufacturing conditions can automatically be set to the expected value by using the adjusting signals. Since an internal circuit operates on a correct internal voltage, operation margins can be increased. The yield of a nonvolatile semiconductor memory can thus be increased.

The invention discloses a system and a method for supervising and counting loading and transporting vehicle linkage operation. The system comprises a loading end monitoring device, a goods yard end monitoring device, a cloud server and a remote management center. The loading end monitoring device is arranged in a cargo loading field and comprises a data acquisition device, an on-site controller, ahuman-computer interaction interface and a voice output device. The goods yard end monitoring device is arranged on a goods unloading yard. The field controller is in communication connection with the cloud server through a wireless communication network, and the cloud server is further in communication connection with the remote management center so as to achieve real-time sharing of field datainformation. According to the system, a monitoring mechanism is generated from the source in a mode of respectively acquiring information and uploading, storing by a server and analyzing data to generate a report form in a mine field and a freight yard, and multi-post manpower is replaced by equipment, so that the personal safety risk and the labor amount in a high-risk environment during operation monitoring of mine enterprises are reduced to the maximum extent.

The leakage current of an OTP-EPROM cell formed using buried channel PMOS technology can be reduced. The reduction in leakage current of the OTP-EPROM can be achieved by blocking implantation of the Vtp implant into a channel region of an n-well that substantially underlies a floating gate structure. The Vtp implant can be blocked by providing a mask overlying the surface of the channel region of the n-well during implantation of the Vtp implant.

A semiconductor device having a memory cell including first and second load transistors, first and second driver transistors, and first and second transfer transistors. The semiconductor device includes a first gate-gate electrode layer and a first drain-gate wiring layer. A distance L1 between the edges of the first drain-gate wiring layer and an active region of the first driver transistor is greater than or equal to a distance L2 between the first drain-gate wiring layer and an active region of the first load transistor. This structure provides semiconductor devices in which memory cells having desired characteristics can be readily fabricated. The invention also provides memory systems and electronic apparatuses which include the above semiconductor devices.

An interlace-type PDP is driven by an improved driving method so as to achieve a greater operating margin, higher resolution, and higher brightness. The interlace-type PDP is driven using odd and even frames in such a manner that the cells are grouped into cell groups such that each cell group includes two or three cells which are adjacent in a direction crossing the electrode pairs, and the cells are driven in units of cell groups. The grouping of cells is performed differently for even and odd frames such that, in one type of frame, locations of two or three cells grouped into each group are shifted by one cell, in the direction crossing the electrode pairs, from the locations of cells grouped together in the other type of frame.

A non-volatile memory and method for controlling the same prevents a faulty operation from being generated in a read operation, resulting in increase in operation reliability. The non-volatile memory device includes a cell array configured to include a plurality of unit cells in which a read or write operation of data is achieved in a unit cell in response to a variation of resistance, a reference cell array configured to include a plurality of reference cells, each of which has the same structure as that of the unit cell, a global reference current generation circuit configured to generate a global reference current corresponding to a position of the reference cell so as to verify data stored in the reference cell array, and a sense-amplifier configured to compare a current flowing in the reference cell array with the global reference current during a write verification operation of the reference cell array, and thus sense data.

The invention relates to a water pumping and air compressing integrated energy storage system utilizing an abandoned mine underground roadway. The water pumping and air compressing integrated energy storage system comprises an earth surface center power supply unit, a compressed air energy storage unit, a water pumping energy storage unit, a first turbine generator and a second turbine generator, wherein an air compressor and a high-pressure air pump in the compressed air energy storage unit are driven by the earth surface center power supply unit to store high-pressure air in a high-pressure air storage roadway, so that renewable energy absorbed by the earth surface center power supply unit is converted into compressed air stored energy; a water pumping electric motor in the water pumping energy storage unit is driven by the earth surface center power supply unit to extract water in an underground water storage reservoir to an earth surface reservoir, so that the renewable energy absorbed by the earth surface center power supply unit is converted into gravitational potential energy; and finally, the compressed air stored energy and the gravitational potential energy are converted into electric energy so as to be output through the turbine generators. Compared with the prior art, the water pumping and air compressing integrated energy storage system utilizing the abandoned mine underground roadway provided by the invention has high economical efficiency and energy storage efficiency, and a new way is provided for recycling of an abandoned mine.