1121 results about "Cell parameter" patented technology

Apparatus for a modular battery management system with interchangeable slave modules connected to each cell and including a master module controlling and managing the battery system. All the modules receive power through a transfer switch that selectively switches between an external source, an auxiliary source, and the battery. The modules are configured to connect to a cell of the battery for charging and monitoring the cell individually. Each module is electrically isolated from the other modules. The modules are autonomous and shut down the battery and disconnect the module when a critical parameter of the cell is reached. When the battery is in service and a cell parameter approaches the critical level, the master controller instructs the corresponding slave module to charge the cell using battery power. The master module initializes the slave modules to uniquely identify the modules.

The active component of ultrastable Y-type RE molecular sieve is composite modified Y-zeolite containing RE oxide 8-25 wt%, P 0.1-3.0 wt% and sodium oxide 0.3-2.5 wt%, and with degree of crystallization 30-55 % and unit cell parameter 2.455-2.477 nm. It is prepared with Y-zeolite as material and through the steps of exchange with RE and the first roasting to obtain RE-Na Y-zeolite; reaction with RE, reaction with P-containing compound, and the second roasting. The ultrastable Y-type RE molecular sieve is used as the active component of cracking catalyst and has the obvious effect of lowering olefin content in gasoline and the features of resulting in moderate coke yield and high diesel oil yield. The preparation process is simple and high in the utilization of the modifying elements.

The invention discloses a hydrocracking catalyst and a preparation method thereof. The catalyst comprises hydrogenation active metals and a carrier containing modified Y molecular sieve, alumina and amorphous aluminium silicon, wherein, the Y molecular sieve is prepared by the following method: the Y molecular sieve undergone hydro-thermal treatment by mixed water solution of aluminium salt and acid is adopted; the performance of the Y molecular sieve is as follows: specific surface is 800m<2>/g-900m<2>/g, total aperture volume is 0.40ml/g-0.50ml/g, relative crystallinity is 90%-130%, cell parameter is 2.434-2.440nm, aluminium silicon mol ratio is 20-100, infrared acid volume is 0.3-0.8mmol/g, the mol ratio of acid B and acid L is above 7.0, sodium oxide content is less than or equal to 0.05wt%. The catalyst prepared by the invention has the advantages of high catalytic activity, good target product selectivity and can produce heavy naphtha, aviation fuel and diesel fuel, and the like, with high yield and good quality.

Methods and apparatus for estimating the state and parameters of an electrochemical cell. More particularly, for example, a method for estimating present states and present parameters of an electrochemical cell system comprising: estimating a state value of the electrochemical cell with a cell state filter to estimate the state value; estimating a parameter value of the electrochemical cell with a cell parameter filter to estimate the parameter value, and exchanging information between the cell state filter and the cell parameter filter. Also an apparatus configured to estimate present states and present parameters of an electrochemical cell comprising: a first component configured to estimate a cell state value; and a second component configured to estimate a cell parameter value. The first component and second component are in operable communication to exchange information there between.

Apparatus and methods are provided for adaptively determining a handover measurement interval. Power savings are achieved when a mobile terminal in a digital broadcast broadband network does not constantly attempt to measure the signal strength of nearby cells. By determining cell parameters, such as size and carrier frequency, and also determining dynamic information, such as signal strength and mobile speed over time, the time until the next handover measurement is adjusted up or down. When a mobile terminal is moving towards a transmitter in a cell, the handover measurement interval may be lengthened, and when a mobile terminal is moving away from a transmitter, the interval may be shortened.

The invention discloses a hydrocracking catalyst for producing heavy naphtha in great abundance and a preparation method thereof. The catalyst contains hydrogenation active metals and a carrier which consists of modified Y molecular sieves and alumina, wherein the Y molecular sieves are obtained by using a mixed aqueous solution of aluminum salts and an acid to perform hydro-thermal treatment. The properties of the modified Y molecular sieves are as follows: the specific surface area is between 750 m<2>/g and 850 m<2>/g; the total pore volume is between 0.35 and 0.48 ml/g; the relative crystallinity is between 90 and 130 percent; the cell parameter is between 2.437 and 2.445 nanometers; the silicon-aluminum mol ratio is between 15 and 70; the infrared acid amount is between 0.5 and 1.0 mmol/g; the B acid/L acid is more than 7.0; and the content of sodium oxide is less than or equal to 0.05 weight percent. The hydrocracking catalyst has the characteristics of good catalytic activity, high heavy naphtha selectivity, high yield, high latent content of heavy naphtha arene, and so on.

The invention relates to a hydrocracking catalyst with high activity and high-medium oil selectivity. According to the hydrocracking catalyst, amorphous silicon aluminum is used as a carrier, and a specially-modified Y-type molecular sieve is used as acid component, the molecular sieve has high degree of crystallization and low cell parameters, rich secondary holes, large surface area, less uniformly-distributed acid sites, no strong acid center, and most of medium-strength acid centers, and also has strong nitrogen-resisting performance and better damage capacity; and the hydrocracking catalyst using the molecular sieve has high hydrocracking activity and high middle oil selectivity, and stronger nitrogen resisting capacity. The catalyst provided by the invention is used in the process of producing an intermediate distillate product by adopting a heavy hydrocarbon single-section or one-section hydrocracking process, and has better activity and middle oil selectivity.

A monitoring device includes an input terminal configured to receive an input signal from a battery system management (BSM); an output terminal configured to output cell parameters used to determine an open cell voltage associated with one of a plurality of cells within the battery stack connected to the monitoring circuit based on the input signal received from the BSM; a processor; and a memory storing executable instructions for causing the processor to: measure a cell voltage associated with the one of the plurality of cells within the battery stack; measure a voltage drop associated with a measured balancing current; calculate the open cell voltage by adjusting the measured cell voltage based on the measured voltage drop; and balance the battery stack based on the calculated open cell voltage, wherein balancing and calculating the open cell voltage are performed concurrently.

A system and method of automatically communicating traffic information from a traffic probe vehicle to a traffic information and management system when the probe vehicle is operated within an active traffic information reporting region. Geographic information about a traffic reporting region, or plurality of regions, is stored in the probe vehicle as an array of geographic cells so as to reduce the data storage requirements. The geographic cells have associated with them certain cell parameters related to the cell, such as a recording priority, a recording interval and a reporting interval. The recording priority of a cell may be associated with certain roadway types located within that cell. As a probe vehicle travels within an active traffic information reporting region, its location is established within the traffic information reporting region and a corresponding geographic cell, wherein certain vehicle data are recorded and stored in the vehicle for transmission to the traffic information and management system in accordance with the cell parameters. These cell parameters may be selected so as to reduce the volume of information and the frequency of communication required, thereby minimizing communication costs associated with the implementation of the method.

A catalytic cracking catalyst and its production are disclosed. The catalyst consists of clay 20 - 80m%, silica sol 5 - 30m%, pseudodiaspore 0 - 30%, faujusite with cell parameters of (2.432 - 2.472nm) 5 - 40%, and balanced of ZSM-5 zeolite, beta zeolite and their mixture, oxide selected from Sb, rare earths, Ti, Mg, Zn, P, Sr or their mixture. It uses silica sol as substrate or silica sol and pseudodiaspore as composite substrate to increase macromolecular cracking ability and to improve wearproof performance. It can be produced by non-continuous process or multi-stream continuous process with easy mass production.

Techniques are described for wireless communication. A first method includes generating a first type of synchronization signal based at least in part on a first type of transmission in a shared radio frequency spectrum band, and generating a second type of synchronization signal based at least in part on a second type of transmission in the shared radio frequency spectrum band. The second type of synchronization signal is different from the first type of synchronization signal. A second method includes receiving a synchronization signal associated with a type of transmission in a shared radio frequency spectrum band; determining a type of the synchronization signal; and determining one or more cell parameters based at least in part on the synchronization signal.

We describe the use of coordination polymers (CP) as coatings on microcantilevers for the detection of chemical analytes. CP exhibit changes in unit cell parameters upon adsorption of analytes, which will induce a stress in a static microcantilever upon which a CP layer is deposited. We also describe fabrication methods for depositing CP layers on surfaces.

The invention relates to a sulfurized gallium and barium monocrystal as well as a growing method and an infrared nonlinear optical device thereof. A molecular formula of the sulfurized gallium and barium monocrystal is BaGa4S7, the sulfurized gallium and barium monocrystal belongs to the field of rhombic systems, a space group is Pmn21, and a cell parameter is as follows: a=14.755 A, b=6.228 A, c=5.929 A, and alpha=beta=gamma=90 DEG. The nonlinear optical materials are prepared by adopting a crucible decent method to obtain compositions and monocrystals of the same and can be used for manufacturing a secondary harmonic generator, an upper frequency converter, a lower frequency converter and an optical parametric oscillator.

The invention discloses a photovoltaic cell parameter identification method based on an improved particle swarm algorithm. The implementation process framework of the method comprises the steps of establishing a recursive least-square model form of a photovoltaic cell and determining a parameter to be identified, initializing the position and speed of a particle swarm, calculating a particle fitness value, an individual extremum and a group extremum, updating the position and speed of particles, adding the individual extremum to a Gauss operator, calculating the fitness value and updating the individual extremum, calculating the distance between each particle and a global extremum, calculating the particle fitness value, conducting individual extremum and group extremum updating and outputting the optimal value of the photovoltaic cell parameter to be determined. The photovoltaic cell parameter identification method based on the improved particle swarm algorithm is used for parameter analysis of a series-parallel connection m*n type photovoltaic module array in a grid-connected photovoltaic power generation system and can be used for identifying an undetermined parameter of an I-V equation of the photovoltaic cell, determining an I-V mathematical model of the photovoltaic cell and analyzing failure activating causes of the photovoltaic cell.

The invention discloses a device and a method for dynamically confirming a CFI (Control Format Indication). The device comprises a cell parameter configuration unit, a PHICH (Physical Hybrid Indication Channel) calculation unit, a scheduling calculation unit, a CFI calculation unit and a CFI mapping unit. The method comprises the following steps of: acquiring cell configuration parameters; calculating a PHICH parameter of the cell according to the cell configuration parameters; calculating and acquiring a total CCE (Command Control Equipment) resource bit needed by the empty subframe according to the numbers of information to be scheduled and UE (User Equipment) to be scheduled in the empty subframe when the number of the information to be scheduled is changed in an empty subframe of the cell; and calculating a total REG (Registered) number needed by the empty subframe and calculating the CFI value of the empty subframe of the cell according to the total REG number needed by the emptysubframe. The invention dynamically confirms the CFI value and improves the resource utilization ratios of downlink PDCCH (Physical Downlink Control Channel) and PDSCH (Physical Downlink Shared Channel) resources.

The invention provides a cerium-zirconium composite oxide, a preparation method of the cerium-zirconium composite oxide and a use of the catalyst. The cerium-zirconium composite oxide has a composite phase structure and comprises a cerium oxide phase and a cerium-zirconium solid solution. The cerium-zirconium solid solution has a chemical formula of CexZr1-x-yMyO2, wherein M represents one or more of rare earth elements but cerium, transition metal elements and alkali earth metals, x is in a range of 15-85mol% and y is in a range of 0-20mol%. The cerium oxide phase and the cerium-zirconium solid solution have different cell parameters so that the cerium oxide phase and the cerium-zirconium solid solution have different phase boundaries and a contact area of a sintering neck is reduced. Under action of cooperation or coupling of the cerium oxide phase and the cerium-zirconium solid solution, the cerium-zirconium composite oxide has high anti-sintering performances so that high temperature stability of the cerium-zirconium composite oxide is improved.

The invention relates to a cell parameter transmission device for a pure electric bus, comprising a control mainboard and an expansion board. The control mainboard is provided with a CPU of ARM920T based on an ARM core and internally integrated with a CAN bus interface so that the device has simple assembly structure, high-speed start and lower cost. For improving the communication reliability and the systematic reliability of the device, a watchdog circuit is designed on the expansion board to automatically detect a communication link state and a halted state of the device and recover from the halted state. The device is used for acquiring a great amount of cell parameter data by the CAN bus on a vehicle and transmitting a great amount of cell parameter data with a monitoring center in a GPRS wireless communication mode, wherein the cell parameter data comprise a voltage value of each single cell, a temperature value of each node of a cell box, and the like. The invention takes important effect on monitoring the cell parameters of a vehicle in the monitoring center.

A method and computer program for efficient cell failure rate estimation in cell arrays provides an efficient mechanism for raising the performance of memory arrays beyond present levels/yields. An initial search is performed across cell circuit parameters to determine failures with respect to a set of performance variables. For a single failure region the initial search can be a uniform sampling of the parameter space and when enough failure points have been accumulated, a mean is chosen from the mean of the detected failure points. Mixture importance sampling (MIS) is then performed to efficiently estimate the single failure region. For multiple failure regions, a particular failure region is selected by varying the memory circuit cell parameters along a random set of vectors until failures are detected, thus identifying the boundary of the failure region of interest as the closest failure region. A new mean is chosen for MIS in conformity with the location of the detected boundary.

The invention relates to a nonlinear optical crystal of a potassium borate chloride compound and a preparation method as well as application thereof. The chemical formula of the compound is K3B6O10Cl, and the molecular weight of the compound is 377.61. The crystal does not have a symmetric center and belongs to a trigonal system and a space group R3m, and cell parameters are as follows: a=10.0624(14), b=10.0624(14), c=8.8361(18), Z=3, and V=774.8 (2). The powder frequency-doubled effect reaches about 3 times of KDP(KH2PO4), the Mohs hardness is 4-5, and the light transmission waveband is 165nm-3460nm. A solid phase reaction method is used for synthesizing the compound, and a cosolvent method is used for growing the crystal. The crystal has the advantages of simple operation, low cost, large size, short growth cycle, few inclusion enclaves and larger mechanical hardness, and can be cut, polished, processed and saved easily. The crystal is used for generating twofold frequency or three-fold frequency or fourfold frequency or fivefold frequency harmonic light output for laser beams of which the wavelength is 1064nm.