250results about How to "Overcome loss" patented technology

A cellular wireless internet access system which operates in the 2.5 to 2.68 GHz band and which must comply with complex government regulations on power levels, subscriber equipment and interference levels yet which provides high data rates to users and cell sizes of 1½ miles radius or more from base stations with subscriber equipment and antennas mounted indoors. Such base stations are mounted low and use spread-spectrum transmission to comply with interference rules with respect to adjacent license areas. An unidirectional tear-drop coverage pattern is used at multiple cells to further reduce interference when required. Time division duplex is used to allow the system to operate on any single channel of varying bandwidth within the 2.5 to 2.68 GHz band. Backhaul transmission from base stations to the Internet is provided using base station radio equipment, operating either on a different frequency in the band or on the same frequency using a time-division peer-to-peer technique. Different effective data-rates are provided by a prioritization tiering technique.

The present invention features a method of making hydrous zirconium oxide having desirable properties, including resistance to moisture content, predetermined particle size, and developed porosity and surface area. The inventive material is suitable for use as an ion exchanger, a catalyst and a catalyst support. The process comprises providing a liquid comprising a zirconium compound and an alkali metal-containing reagent. The alkali metal-containing reagent may comprise a compound selected from the group consisting of MOH-M₂SO₄, MOH-M₃PO₄, and combinations thereof, where M is at least one of Li, Na and K. The zirconium compound may be treated with the alkali metal-containing reagent effective to form a mixture which achieves an uptake of alkali metal in an amount ranging from 0.5 to 2.5 meq/g. The mixture is reacted to form the hydrous zirconium oxide. A molar ratio of SO₄/Zr and PO₄/Zr in the mixture may range from 0.2-0.7:1. The mixture may be heated at a temperature ranging from 80 to 150° C. to produce a reaction product. The reaction product may be treated with acid having a pH ranging from 4 to 8 at a temperature ranging from 20 to 60° C. to form the hydrous zirconium oxide. Also featured is a method of making hydrous hafnium oxide. The inventive hydrous zirconium oxide and hydrous hafnium oxide are characterized by at least one of the following: stability against moisture loss, a particular surface area, a particular pore size distribution, an affinity towards anions including at least one of PO₄, HPO₄, H₂PO₄, AsO₄, HAsO₄, H₂AsO₄ and AsO₃, oxoanions of Cr, Se, B, Mo,and W, and/or resistance against poisoning by SiO₃ and SO₄.

A robot comprising: a base; an articulated arm extending distally of the base and including two arm members coupled by a joint; a motor; a gearbox having an input shaft coupled to an output of the motor and an output shaft configured to drive relative motion of the arm members about the joint; a position sensor configured to sense relative position of the arm members about the joint; and a control system coupled to the arm configured to drive the motor, the control system being arranged to perform a calibration operation to estimate torque loss in the gearbox by the steps of (i) estimating the inertia of the portion of the arm distal of the joint for motion about the joint; (ii) applying a determined drive power to the motor; (iii) receiving from the position sensor position data indicating the motion of the arm in response to the applied drive power; and (iv) estimating the torque loss in the gearbox in dependence on the estimated inertia, the determined drive power and the position data.

The invention discloses a rainwater collection and water-saving irrigation system used for an upland sloping field. The system comprises a rainwater collection pond or weir, a high-position water storage reservoir, a plurality of low-position water storage reservoirs, a water pump and a water conveying pipe, wherein the rainwater collection pond or weir is arranged on the middle part or lower part of a valley; the high-position water storage reservoir is arranged on the upper part of a hill body with maximum height in each hill body close to the rainwater collection pond or weir; the plurality of low-position water storage reservoirs are arranged on each hill body at the periphery of the high-position water storage reservoir respectively and are lower than the high-position water storage reservoir; the water pump is arranged beside the rainwater collection pond or weir; a water inlet of the water pump is connected with the rainwater collection pond or weir, and a water outlet of the water pump is connected with the high-position water storage reservoir; and the water conveying pipe is laid between the high-position water storage reservoir and each low-position water storage reservoir. By using the rainwater collection and water-saving irrigation system, surface runoff water produced by rainwater is accumulated in the rainwater collection pond or weir, water in the rainwater collection pond or weir is lifted to the high-position water storage reservoir by the water pump, water of the high-position water storage reservoir is conveyed to each low-position water storage reservoir through the water conveying pipe respectively, and water accumulated in each low-position water storage reservoir is used for irrigation when the irrigation is needed.

A method is disclosed for recovering timing information between master and slave nodes interconnected over a packet network having an underlying time grid with a distinct granularity. A series timing packets are exchanged between said master and slave nodes to measure the time offset of the time grid relative to clocks at the master and slave clocks. This offset is then used to either adjust the local clock at the slave node, or generate the clock using a digital controlled oscillator.

The invention discloses a combined soil sampler capable of sampling in a layering manner. The combined soil sampler comprises a top cover, more than two cylinders and a sampling head, wherein each cylinder comprises an outer cylinder and an inner cylinder; each outer cylinder is divided into two half bodies along the middle axis; each inner cylinder is closely attached to the inner wall of the corresponding outer cylinder; each two half-bodies are connected to form a whole body through a connection clip; the top cover and the cylinders are in threaded connection; the various cylinders are in threaded connection; the cylinders and the sampling head are in threaded connection; the two parts in threaded connection are also fastened through a movable buckle; an air hole is formed in the top cover; a horizontal rotary handle is arranged on the side wall of the top cover. According to the invention, a plurality of detachable cylinders are combined, and thus pollution caused by the fact that a soil sample is in contact with a sampling cylinder during multiple times of sample collecting, and loss and pollution caused by transferring the cylinder into other containers again are avoided; in addition, because a sample is cylindrically packaged in the inner sampling cylinders, the possibility of preserving the sample for a long time and layering the sample again is realized.

An embodiment of the present invention improves the fabrication and operational characteristics of a type-II superlattice material. Layers of indium arsenide and gallium antimonide comprise the bulk of the superlattice structure. One or more layers of indium antimonide are added to unit cells of the superlattice to provide a further degree of freedom in the design for adjusting the effective bandgap energy of the superlattice. One or more layers of gallium arsenide antimonide are added to unit cells of the superlattice to counterbalance the crystal lattice strain forces introduced by the aforementioned indium antimonide layers.

The invention relates to a garlic sprout harvester and belongs to the field of agricultural machinery. The garlic sprout harvester can erect a single row of garlic sprout stems and gather the garlic sprout stems into a bundle, vertically gash the epidermis of each garlic sprout stem at certain height, transversely make a cut with certain depth in the gashed epidermis and draw the garlic sprouts by using a drawing device. The invention solves the problem of mechanized harvesting of garlic sprouts. The technical proposal of the invention can increase the production rate for harvesting garlic sprouts, reduce the labor intensity for harvesting garlic sprouts and enhance the mechanization level of garlic planting.

The invention relates to a treatment method for wastewater containing phenol and dissoluble amine salts produced in chemical industry production, and particularly relates to a phenol and ammonia wastewater recycling treatment method by using a single tower for performing de-acidification and de-amination simultaneously. By means of an energy-saving technology which uses a single device for decomposing amine salts and achieving separation and purification, the device investment is reduced; and the energy recycling is achieved by using a differential pressure rectification technology, so that the energy consumption is reduced. Specifically, a de-acidification and de-amination coupling tower is used, and side withdrawing and differential pressure rectification technologies are utilized for achieving a simultaneous de-acidification and de-amination process and recycling ammonia and phenol in coal gasification wastewater, and accordingly, the method is energy saving and emission reducing, the technological process is simplified simultaneously, and the operation difficulty is reduced. According to the phenol and ammonia wastewater recycling treatment method by using the single tower for performing de-acidification and de-amination simultaneously, technical problems of large device investment and high energy consumption in phenol and ammonia wastewater recycling in a coal gasification process are solved, the technological process is simplified through the coupling of devices, and high economic and social values are provided.

The invention relates to medlar coreopsis tinctoria flower tea, which is a tea bag formed by uniformly mixing the following raw materials in percentage by weight: 65-73% of purified and impurity-removed coreopsis tinctoria flowers, 8-12% of xylitol, and 18-24% of medlar extract. According to the invention, nutritional substances and flavors of coreopsis tinctoria flowers are greatly retained; and the disadvantages of high loss amount of effective substance, low absorbance amount and poor mouth feel caused by the traditional method are thoroughly overcome.

The present invention discloses a high performance optical architecture for multiplexing and demultiplexing channels for use in high spectral efficiency optical systems. In general, the MUX and DeMUX architectures of the present invention will fall into two key sections or stages: a wavelength group section and a channel section. The group section makes use of characteristic associated with groups of multiplexed channels for separating said groups from an optical signal having a plurality of multiplexed groups. Advantageously, in preferred embodiments, the channel section is colorless (non-wavelength specific between groups) in order to reduce cost and complexity. With respect to the colorless channel section, components with free spectral ranges (FSRs) have been strategically added to provide repetitive optical filtering functions on group of channels (i.e., subsets of channels within each band of wavelengths) so that the colorless channel section can operate in any respective group identically. Hence each of said colorless channel sections are interchangeable. Advantageously Distortion compensation can be performed on a per group basis.

The invention discloses a multi-modal process fault detection method and system based on vine copula correlation description. The detection method comprises the following steps: obtaining a training sample set of normal data under different modals according to expert knowledge or adopting a clustering method; carrying out correlation modeling by utilizing C-vine copula and obtaining a joint probability density function of each modal; carrying out sampling on the joint probability density functions of different modals by utilizing a Markov Monte Carlo method and calculating the value of the joint probability density function of each sample; determining discretization step length l according to control limits and establishing a static density quantile table of the process by utilizing a density quantile method; estimating general local probability index PL<k> (Xt<monitor>), under the modal k, of monitoring data Xt<monitor> at the moment t by searching the table; and calculating BIP index by adopting Bayesian reasoning, and judging whether the index is beyond the limit so as to achieve real-time process monitoring.

The invention relates to the technical field of cell preservation, in particular to a storage method of immune cells and a cell freezing medium. The method includes: separating and collecting peripheral blood mononuclear cells, and adding the cell freezing medium to store the cells in a frozen manner, wherein the cell freezing medium comprises, by weight percentage, 0-62% of serum-free liquid culture medium, 0.5-1.5% of penicillin-streptomycin solution, 5-10% of dimethyl sulfoxide and 30-92% of autologous plasma. The storage method of the immune cells has the advantages that the method is simple and effective, the infectious disease risks of exogenous serum are avoided, the survival rate of the revived freezing-stored cells after induction culture is above 90%, the various biological indexes of the cells satisfy the requirements, and a good storage effect is achieved; the method can monitor and trace cell bank samples in real time, accurately record information such as cell storage positions, temperature and cell sources, each cell has a unique identifier, and the method is convenient to use and safe and reliable.

The invention relates to a high-covering high-luminance quantum dot diffusion barrier and a preparation method and application thereof, belongs to the field of optical films, and aims at overcoming the problem that a present quantum dot backlight diffuser plate is high in luminance loss and general in dodging capability. A quantum dot film is combined with a diffusion barrier, The quantum dot diffusion barrier comprises a quantum dot substrate layer of a single-layer film structure and diffusion layers coating the upper and lower surfaces of the substrate layer. The quantum dot can provide a higher luminance of a backlight module, the diffusion layer can play a light diffusion angle correction role, light of a light source is refracted, reflected or scattered in the surfaces when passing diffusion particles on the diffusion film, light of a backlight source is spread flexibly and uniformly, and the problem that the quantum dot backlight module is not uniform in light emission at present is solved.

The invention discloses a gastrodia tuber noodle and making method, which comprises flour and fresh rhizoma Gastrodiae slurry by the proportion of 1 : 0.03-0.15, and the preparing process comprises the steps of feed preparation (including washing, scraping, slacking, beating) and enzyme eradicating at 80-90 deg. C, material mixing, forming and packaging.

The invention relates to a garlic composite oil which uses fresh garlic as main material, and relative preparation, wherein the garlic oil is formed by garlic oil, scallion oil and onion oil. The invention is characterized in that it comprises 50-60% garlic, 25-30% scallion, and 15-20% onion. And the preparation comprises that washing materials, slicing into sheets or sections, preparing materials as said ratio, refrigerating at low temperature, extracting and separating as ultra-critical carbon dioxide, low-temperature depositing extractive and eccentrically separating to obtain the final garlic composite oil, while the garlic composite oil can be separated into volatile garlic composite oil and non-volatile garlic composite oil via short molecule distillation method. The inventive garlic composite oil can hold effective components most of fresh garlic, scallion and onion, without secondary pollution to meet the demands of third-generation flavoring, health-care product and drug.

This invention discloses a hydrogenation catalyst pre-curing method. The method used the by-products of the oil and gas industry processing acidic gas as medium sulfide, pretreatment the hydrogenation catalyst, the main component of acid gas is hydrogen sulfide and carbon dioxide, the invention can be used inside or outside of pre-vulcanization mode, put the oxidation states catalyst into vulcanization reactor, heated to200-500degree centigrade in an inert atmosphere, and then conducted hydrogen and acid gas to sulphate under 0.1-10MPa pressure, the reaction time is 0.5 to 30 hours, of which an acid gas occupy 1-40%. The invention method not only overcome the presence of sulfide wet curing agent losses, metal tube surface corrosion defects, also have fast curing process, even curing, can greatly improve the activity and stability of catalysts, extended catalyst life and other advantages, and wide sulfide-media sources, easy to get, significantly lower sulfide cost.

A transceiver according to some embodiments of the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter of another transceiver and adjusts the power output of certain channels in a transmitter of the receiver. Upon start-up, the power output levels of signals in individual channels in the transmitter can be preset. A power balance can determine new power output levels of the transmitter from parameters in the receiver while receiving data transmitted by a similarly situated complementary transmitter in a second transceiver coupled to the transceiver. In some embodiments, a complementary receiver of the other transceiver determines the power outputs of the transmitter and the power levels are transmitted to the transmitter by the other transceiver.

The invention discloses a method for separating and preparing instant tea by use of multilayer membranes. The method comprises the following steps: performing conventional treatment such as extraction, filtering and the like on tea leaves; filtering through a microfiltration membrane film, an ultrafiltration film and a nano filter membrane to obtain the tea filtered concentrated liquid; and drying to obtain the instant tea. Through the method disclosed by the invention, harmful germs, useless components and pesticide residue in tea leaves can be removed, the content of heavy metals such as lead and the like can be obviously reduced, and the quality and sanitation index of the tea leaf product are improved.

The invention discloses a CO2 absorption separation device and a CO2 absorption separation method by a hot potash process, belonging to the technical field of marsh gas separation and purification. In the invention, the absorption liquid is prepared by using carbonate as an absorbent, metaborate as an activating agent and metavanadate as a corrosion inhibitor, and the CO2 absorption separation device is used for carrying out absorption separation on the CO2. The carbonate absorbent selected in the invention has the advantages of wide raw material sources and low cost, and is environment-friendly; and the addition of the metaborate enhances the absorption rate so as to obviously increase the CO2 absorption capacity, lowers the corrosion degree of equipment, and increases the absorption rate. The invention has an important promotion action on energy and chemical engineering, particularly development of marsh gas purification and separation technology.

The invention discloses a current detection circuit, which comprises a voltage bias circuit, a first amplifier, a second amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a first N-channel metal oxide semiconductor (NMOS) tube, a second NMOS tube, a first P-channel metal oxide semiconductor (PMOS) tube, a second PMOS tube, a third PMOS tube and a switch component. In the current detection circuit, a full-phase current sampling signal is subjected to level shift amplification by a level shift operational amplifier consisting of the first amplifier, the first resistor and the second resistor, so that a current phase discrimination circuit consisting of the second amplifier, the third resistor, the switch component and the third PMOS tube can discriminate phase correctly; and the current phase discrimination circuit outputs a control signal, controls the switch component to adjust the flowing direction of signal current and replaces the traditional rectifier bridge or the diode to finish the rectification function, so that the full-phase current detection function of a power supply circuit of a single power supply without the rectifier bridge or the diode is realized.

Apparatus and method for counteracting high frequency attenuation of a differential input data signal as the signal is conducted through a data link. A differential input data signal is transmitted from a transmitter to a receiver through a data link. The data eye of the differential input data signal is modified at the transmitter in response to feedback from the receiver where the extent of the data eye of the differential input data signal, after being conducted through the data link, is determined. The feedback to the transmitter, dependent on the determination of the extent of the data eye, controls the data eye at the transmitter and the equalization of the differential input data signal by adapting the differential input data signal to anticipate high frequency attenuation of the differential input data signal in the data link.

The invention belongs to the technical field of phase array radar task scheduling and particularly relates to a priori knowledge based phase array radar self-adaption task scheduling method. The priori knowledge based phase array radar self-adaption task scheduling method includes steps of S1, establishing a radar classified task chain list; selecting n/2 radar classified task chain lists according to the high-to-low sequence of priority; implementing a step S2 if time window of each radar task in the selected n/2 radar classified task chain list is longer than scheduling interval of a phase array radar; S2, obtaining a scheduling sequence of each radar task based on time minimum loss principle; S3, establishing a novel radar classified task chain list according to the two radar classified task chain lists with highest priority; scheduling each radar classified task chain list according to the high-to-low sequence of the priority until each radar task in each radar classified task chain list is scheduled.

The invention discloses a low-power-consumption distributed medium access control method based on TDMA. The method mainly solves the problem that the energy consumption in the existing mobile ad hoc network is too high, and the implementation scheme is realized according to the scheduling of time slots and the statistical comparison of transmission data volume: when no node accesses the network, only one available network access time slot is reserved for monitoring, and when the node accesses the network, the number of available network access time slots is increased for monitoring; When the time slots of the nodes are remained, the remaining time slots of the nodes are distributed according to the actual time slot requirements of the adjacent nodes, and the next time slot distribution result is dynamically adjusted; When the data transmission quantity of the node in a period of time is lower than a set threshold value, the frequency of periodic starting of the node is reduced by increasing the period length, and the dormancy period is prolonged. According to the method, the power consumption during network operation is reduced, the residual time slots of the nodes can be accurately distributed according to the requirements of the adjacent nodes, and the method can be used for a small-scale low-flow mobile communication network.