53 results about "Critical period" patented technology

In Pavlovian and instrumental conditioning, rewards typically come seconds after reward-triggering actions, creating an explanatory conundrum known as the distal reward problem or the credit assignment problem. How does the brain know what firing patterns of what neurons are responsible for the reward if (1) the firing patterns are no longer there when the reward arrives and (2) most neurons and synapses are active during the waiting period to the reward? A model network and computer simulation of cortical spiking neurons with spike-timing-dependent plasticity (STDP) modulated by dopamine (DA) is disclosed to answer this question. STDP is triggered by nearly-coincident firing patterns of a presynaptic neuron and a postsynaptic neuron on a millisecond time scale, with slow kinetics of subsequent synaptic plasticity being sensitive to changes in the extracellular dopamine DA concentration during the critical period of a few seconds after the nearly-coincident firing patterns. Random neuronal firings during the waiting period leading to the reward do not affect STDP, and hence make the neural network insensitive to this ongoing random firing activity. The importance of precise firing patterns in brain dynamics and the use of a global diffusive reinforcement signal in the form of extracellular dopamine DA can selectively influence the right synapses at the right time.

The invention discloses a construction and stock breeding method for cultured grass carp families. The method comprises the following steps of: selecting grass carps which move actively and have high heritability and of which the weight is 15 to 20 percent more than the average weight, as parent fishes; marking cultured grass carps by using periodic interrupt timer (PIT) electronic labels, after sexual gland is matured, facilitating maturation by using hormone solution, performing artificial insemination on female and male parent fishes to obtain oosperm, performing self-hatching, then growing seedlings, breeding fishseed, breeding one-year fishes, feeding respectively, and establishing the families; from the second year to maturation time, injecting the PIT electronic label into the grass carps with the different families; performing mixed culture in a same pond, and eliminating the inferior grass carps, wherein the rest families are the basic families for next generation breeding; the young grass carps, the one-year grass carps, two-year grass carps, three-year grass carps and four-year grass carps are a critical period of family breeding; preferably choosing, and establishing the families serving as backup parent fishes; and then matching teams, raising the seedlings and then breeding continuously. A new product with high quality, high yield and stable yield is bred by establishing the different families of the cultured grass carps; and the method is used for researching the genetic characteristic and breed differentiation conditions by mating the male and female fishes among the grass carp families and inbreeding the male and female fishes in the grass carp family.

The invention provides an industrial loach breeding and fry culturing method and belongs to the field of aquaculture. The method includes industrial breeding and fry culturing workshop construction and a specific breeding and fry culturing method. The specific breeding and fry culturing method includes: arranging bi-layer open net cages in a cement pool in a breeding workshop, wherein inner net cages are rutting and spawning places for parents, and outer net cages receive eggs concentratedly; and arranging a plurality of open foam boxes in a hatching and fry culturing workshop, placing the eggs into the foam boxes after counting, feeding loach fries by micro initial feed after hatching to fries to enable the loach fries to live through an initial critical period to become strong fries, and selling the fries or placing the fries into a pond for large-scale fingerling rearing. A workshop production process is adopted, breeding and hatching and fry culturing environments are guaranteed effectively, operation is facilitated, working efficiency is high, fecundity can be measured accurately, fertilization rate reaches above 98%, hatching rate basically reaches 100%, fry survival rate basically reaches 100%, and survival rate of large-scale fingerling rearing by placing the strong fries into the pond reaches above 50%.

The invention relates to an energy consumption optimization method for a fixed priority periodic task of a hybrid critical system, the method comprising the following steps: establishing a hybrid critical periodic task model comprising a plurality of hybrid critical periodic tasks; determining priority of hybrid critical periodic tasks by using the critical hierarchy partitioning method; calculating the lowest feasible speed S of hybrid critical period task scheduling; calculating an idle time ST generated by a task of a high critical level in a low mode, and determining an execution speed Siof the processor by using the idle time, wherein the low level critical tasks and high level critical tasks are always executed at speed Si in low mode, and the high critical level tasks are executedat maximum processor speed with extra load in high mode; using dynamic power management technology to reduce processor power consumption. The method of the invention effectively reduces the system energy consumption by utilizing the idle time generated by the high-critical-level tasks and the dynamic power consumption management technology.

Described embodiments improve the performance of a computer network via selectively forwarding packets to bypass quality of service (QoS) processing, avoiding processing delays during critical periods of high demand, increasing throughput and efficiency may be increased by sacrificing a small amount of QoS accuracy. QoS processing may be applied to a subset of packets of a flow or connection, referred to herein as “lazy” processing or lazy byte batching. Packets that bypass QoS processing may be immediately forwarded with the same QoS settings as packets of the flow for which QoS processing is applied, resulting in tremendous overhead savings with only minimal decline in accuracy. In case of backlog, packets may be collected together into an aggregated or ‘uber’ packet, with QoS processing applied based on a virtual size of the aggregated packet.

An active implantable medical device, such as a pacemaker, defibrillator and/or cardiovertor having an AAI and/or an AAI/DDD operating mode. This device detects atrial and ventricular events and stimulates the atrium, and calculates an atrial escape interval (AEI). The device defines a critical period preceding or following the end of the AEI and determines, in the event of detection of a ventricular extrasystole (VES), if the moment of occurrence of the VES is in the critical period. The device then recognizes a risk of inappropriate operation and/or false diagnosis related to the temporal proximity of the VES and end of the AEI. In such a case, the device modifies an operating parameter so as to eliminate this risk, for example, by resetting the counting of AEI (AEI*) on detection of the VES. The device can also inhibit a switching of AAI mode to a DDD mode in the event of risk of false diagnosis of atrio-ventricular block.

The invention provides a method for rapidly analyzing ecological water need season difference. Aiming at the deficiency that different types of ecological water need computation methods can not rapidly analyze the ecological water need time difference under the condition of the lack of ecological and hydrological related information of an ecological system at present, an ecological target the ecological system of which changes following the time is divided into a critical period ecological target and a water need quantity and time change target. The requirement of the biological reproduction period with obvious contradiction of ecological need water and production need water on habitat environment factors is used as a critical period ecological target, and the critical period ecological water need quantity is determined; and an average natural runoff annual time change rate for years is used as a critical period ecological target, finally, the ecological water need season difference isdetermined, thereby meeting the requirement of rapidly analyzing the ecological water need season difference. The invention avoids complex computational effort and information quantity demand and effectively achieves the purpose of rapidly analyzing the ecological water need season difference.

This invention relates to a medicine for humans, and particularly to a pharmaceutical combination comprising Epidermal Growth Factor (EGF) and Growth Hormone secretagogue hexapeptide (GHRP) for use in preventing tissue damage due to blood flow suppression by enhancing tissue repair following ischemic damage. The aforementioned combination may be applied as a single pharmaceutical composition. Alternatively, an individual may also receive both EGF and GHRP in a separate manner but within a single therapeutic regime to enhance cellular survival when organs are subjected to blood flow deprivation for a critical period of time. This combination attenuates reactive oxygen species (ROS) formation and its associated cytotoxicity. It is also useful in promoting cellular survival when tissue or organs are exposed to prolonged ischemic periods. The combination is useful as a prophylactic agent in those subjects prone to multiple organ failure (MOF) such as burn victims, multiple trauma patients, hypoxic neonates, acute respiratory distress syndrome patients, and necrotizing enterocolitis patients.

The invention is directed to a method for improving learning and/or memory (e.g., auditory, visual, somatosensory or motor) in adults and children of an age which is beyond the early critical period for learning, said method comprising inhibiting (i) ecto-5′-nucleotidase (Nt5e, aka CD73) or (ii) A1 adenosine receptor (A1R, aka Adora1) expression or function in the brain. The invention is also directed to a method for treating learning and memory defects and neurological diseases associated with an abnormal auditory, visual, or somatosensory perception by inhibiting Nt5e or A1R expression or function in the brain.

The present invention relates generally to a system and method for conducting online auctions, and has particular application in conducting business over a network of computers such as the Internet for establishing materials or service supply contracts. The invention relates to use of default final offers in an online auction event between a first party and at least two counter-parties, being competing participants in the online auction event, and the method includes the steps of designating a time period for the online auction event, permitting each of said competing participants to prescribe a default final offer before or during the online auction event, conducting the auction between the competing participants by permitting the participants to submit bids, checking, at or after the expiry of said time period, default final offers prescribed by competing participants, and, if a competing participant's default final offer represents a competitive offer, registering the offer as a valid bid without any further intervention by that competing participant. The invention, which can be applied to both forward and reverse auctions, permits competing participants to selectively safeguard their respective positions in the event of inadvertent disconnection from the online auction system, or other circumstances that prevent them actively participating in a critical period of the auction event.

The invention provides an early ripening maize high-yield cultivation technology, belongs to the field of agriculture, and especially relates to a maize cultivation technology. The invention provides the early ripening maize high-yield cultivation technology which is fast in grouting and full in particles. The early ripening maize high-yield cultivation technology is characterized by comprising the following steps: 1, processing seeds and selecting seeds, pelleting seeds, using a seed coating to coat, to prevent and control pest and disease damages; 2, sowing and conserving seedlings: (1) ensuring soil moisture and sowing in proper moisture in soil, appropriately sowing early, on 5-10 cm land, when ground temperature being constant at 8 DEG C, sowing, to prevent sowing too late; 3, applying fertilizer and irrigating, according to target yield and foil fertility, determining fertilizer and water safeguard measures, to strictly guard against drought, especially paying attention to moisture supply in a critical period; 4, controlling pests and diseases later, in a belltop stage, using 10 ml chlorantraniliprole.thiamethoxam, 15 ml Ainong, and 30 kg water in each mu, spraying on stem leaves, to prevent European corn borers, oriental armyworms, aphids, and leaf spot diseases, rust disease, and gall smut, etc.

A monitoring system for an RF transmission system, such as a multi-channel television broadcasting antenna feed system, gathers data about the physical and electrical condition of the RF transmission system in real time. The system can detect and localize deterioration and other time-dependent faults in the transmission system by the tendency of faults to produce reflections back to the transmitter that were not part of the original characterization of the installation. Some kinds of faults, identified early enough, can be corrected without replacing components, and especially without shutting down the transmission system during prime viewing hours in the case of television broadcasters, or during a critical period of use of the system in the case of other user types. Other faults can be detected in time to order replacement parts before the underlying problem becomes severe, and to allow servicing during periods of low demand.

The invention relates to a method for artificially breeding purple nacre strain hyriopsis cumingii, which comprises the following steps of: (1) selecting parent clams, namely optimizing the cold shock method of the hyriopsis cumingii and a dental mirror in-vivo observational technique, establishing a loss-free, quick and accurate hyriopsis cumingii nacre color in-vivo identification technique, and screening the parent clams by combining hyriopsis cumingii pearl-breeding properties; (2) breeding small clams, namely hanging and inbreeding male and female parents in a water body without heterogenic sperm interference according to the inbred combination, and independently breeding from mating, seedling parasitizing, seedling growing to pearl breeding; (3) breeding pearl-breeding clams, namely sending offspring of each female clam after pearl inserting to a plurality of culturing farms and independently breeding; and (4) breeding the purple nacre hyriopsis cumingii strain, namely determining early stage of pearl inserting operation and later stage of pearl breeding as critical periods of breeding and optimizing small clams and pearl-breeding clams. The method has the advantages of visual breeding properties, accurate identification, and capability of breeding the purple nacre strain hyriopsis cumingii and improving the color purity and yield of pearls.

Described embodiments improve the performance of a computer network via selectively forwarding packets to bypass quality of service (QoS) processing, avoiding processing delays during critical periods of high demand, increasing throughput and efficiency may be increased by sacrificing a small amount of QoS accuracy. QoS processing may be applied to a subset of packets of a flow or connection, referred to herein as “lazy” processing or lazy byte batching. Packets that bypass QoS processing may be immediately forwarded with the same QoS settings as packets of the flow for which QoS processing is applied, resulting in tremendous overhead savings with only minimal decline in accuracy.

The invention discloses a natural visual environment desk lamp imitating a super visual area, and a control method. The natural visual environment desk lamp comprises a light regulating device, an array lamp panel and a photodetector, wherein the array lamp panel comprises a multispectral array lamp bank composed of seven kinds of visible light and A ultraviolet light sources and used for generating and controlling simulated natural spectra; the illumination of a detected area is transmitted to the light regulating device through the photodetector, and the light regulating device comprises anillumination control module and an spectral rhythm control module with preset optical environment data of the super visual area; the illumination control module is used for starting and controlling the multispectral array lamp bank so that control over the illumination is achieved, and the spectral rhythm control module is used for controlling the multispectral array lamp bank so that the controlover spectral rhythm is achieved. The invention provides the desk lamp with natural light distant vision and tracing vision training devices, and according to the desk lamp, the natural light illumination, spectra and rhythmic change of the simulated super visual area are controlled with an intelligent technology; and a health mini-vision environment working area for preventing myopia at a critical period of an eyeball development window is formed.

The invention discloses a rice cultivation method. The method includes the steps that seedlings to be transplanted are manufactured; tillage and fertilizer application management are conducted; transplanting and planting are conducted; field fertilizer application management is conducted. According to the method, liquid silicon potassium is sprayed to leaf surfaces in the inverse fourth leaf stage and in the inverse second leaf stage respectively according to the amount of 200 mL/mu; when the number of stem tillers reaches 85% of the predicted ear number one leaf age before the critical period of effective tillers, drainage and water treatment start, jointing is conducted till rice is ripe, then moistening irrigation is conducted, and alternation of wetting and drying is conducted. According to the cultivation method, the yield of super rice can be increased, ventilation and light-pervious performance on the lower middle portions in the later stage of breeding can be improved, rice blast of super rice is reduced, jointing is conducted till rice is ripe, then moistening irrigation is conducted, alternation of wetting and drying is conducted, and the aims of high yield of super rice, sheath blight prevention and rice blast prevention are achieved.

The invention discloses a simplified design and calculation method of morphological feature parameters of a solar-greenhouse building space, and belongs to the field of energy-saving design of facility agriculture buildings. When a geographical latitude of a construction project site, a vegetable production critical-period which a greenhouse needs to ensure and a span of the solar greenhouse which needs to be constructed are determined, optimal design values of the morphological feature parameters, such as a high-span ratio of the solar greenhouse, rear-roof projection length and north-wall height under a corresponding span condition, of the solar-greenhouse building space can be calculated and obtained according to the method of the invention by consulting local average outdoor-air temperature and daily average total solar radiation amount in the corresponding period. Calculation results show that during an overwintering production period of solar greenhouses, the amount of heat which needs to be provided to the ''optimal-design greenhouse'' is 8340 MJ under a condition of ensuring that greenhouse environment temperature is not lower than 8 DEG C, and is decreased by 14.7% as compared with 9670MJ of the ''current greenhouse'', an energy-saving effect is significant, and an advantageous condition is provided for fully utilizing solar energy or other renewable energy sources as supplemental heat sources by the greenhouse.

The invention discloses a crop water-need critical-period growth regulating agent, relates to crop growth regulating agents, and belongs to the technical field of crop planting. The crop water-need critical-period growth regulating agent is characterized by being composed of, by weight, 1.3-1.7% of auxin, 1.5-2.5% of ethylene, 1.3-1.7% of gibberellin, 1.8-2.2% of 6-benzylaminopurine, 25-35% of glycolic acid, 20-50% of polyacrylamide, 10-30% of polysorbate 80, 5.0-8.0% of manganese sulfate and the balance water. The crop water-need critical-period growth regulating agent has the advantages that the composite regulating agent is composed of plant hormones and element material required by living things, is particularly suitable for being used for salt, alkali and drought environmental conditions, can induce expression of crop stress resistance genes, and facilitates coordination and unification between crop and the environment, between individuals and colonies, between roots and overground parts, and between plant external forms and internal physiological functions.

A method for performing data access via software according to communication protocol handling includes: calculating a time slot period and an upper limit of a processing time for performing a predetermined data processing according to time slot information defined in a communication protocol, a critical period and a time slot number; defining a clock frequency of a processor according to the upper limit of the processing time; and performing data access according to the slot time by the processor operating at the clock frequency. Accordingly, design inflexibility arising from performing data access via hardware is addressed, and a non-real-time issue caused by performing data access via software is also prevented.

The invention relates to the field of intelligent control and especially relates to a method and a system for acquiring a PID (Proportion Integration Differentiation) self-tuning parameter of a positioner. A level output circuit is arranged and is used for outputting different levels according to a detected practical opening degree of an adjusting valve. An opening degree vibration period of the adjusting valve is recorded through the output time of the detected level, so that the vibrating critical period of the adjusting valve can be accurately recorded and calculated and the calculation of the PID parameter of the positioner is accurate and quick.

The invention relates to a magnetically controlled tackle protection device for gymnastic training and application of the magnetically controlled tackle protection device. The protection device comprises a bracket, a sliding device and a protective belt, wherein the sliding device is arranged at the upper part of the bracket; the protective belt penetrates through two sides of the sliding device; the sliding device drives the protective belt to perform position adjustment when the sliding device moves on the bracket; a sliding block device is provided with a magnetic controller; the magnetic controller can be adsorbed to, fixed with or detached from magnets in different positions of the bracket, so that the position of the sliding block device is adjusted, therefore the distance between the protective belt and sports equipment is adjusted. The protection device disclosed by the invention has the advantages that the sliding device is controlled by utilization of a magnetically controlled device, and a traditional fixed protective belt is replaced; a trainer pulls the protective belt to control the sliding device to move forward and backward and immobilize, so that an assistant force is opportunely given to a sportsman in a critical period, the sportsman can be effectively assisted to rapidly master various types of related highly difficult movements of related items, such as gymnastics, the kinetic qualitativeness is built more quickly, and the various types of highly difficult movements are completed in a high quality manner; the effects of novel design, scientific structure and high practicability are achieved.

The present invention provides the use of SphK2 inhibitor ABC294640 in the preparation of a drug for promoting hematopoietic and immune system reconstruction after bone marrow transplantation. ABC294640 can increase the number and function of hematopoietic stem, and enhance its ability to differentiate into many blood cells and immune cells, which can help patients quickly through the critical period after transplantation. The invention provides a novel drug source for treating complications of various hematopoietic dysfunction of bone marrow transplantation patients.

The invention relates to the technical field of artificial breeding, in particular to a secondary debonding method for acipenser dabryanus. The method includes the steps of placing fertilized eggs in a container after the fertilized eggs of acipenser dabryanus are hatched to the gap-shaped blastopore period-wide neural plate period and are hatched for 46 hours to 54 hours at the temperature of 18 DEG C, adding talcum powder with the mass concentration of 8% to 12% or milk powder with the mass concentration of 13% to 17%, stirring the mixture in the same direction for 15 minutes to 30 minutes, and placing the fertilized eggs in a sturgeon hatching device directly or after washing the fertilized eggs to continue to be hatched. By means of the method, stability of water flow in the hatching process is ensured, man-made stimulation of the critical period of fertilized egg hatching is reduced, the probability of fertilized egg blocking is greatly lowered, the probability of blocky water molds is lowered, the loss ratio of live eggs is decreased, and the hatchability is improved.

The invention belongs to the field of elevator planning in building design, and discloses an elevator running mode in the working rush hour and an elevator planning method. The elevator planning method comprises the steps that the elevator running mode in the working rush hour is set to be that passengers are loaded on the first floor, and the passengers are unloaded on other floors except for thefirst floor; the needed longest time T of elevator running for one time is calculated according to the elevator running mode in the working rush hour; the average waiting time t which is acceptable for the passengers is set; and the elevator number n needed by the working rush hour is determined according to the needed longest time T of elevator running for one time, the average waiting time t which is acceptable for the passengers and the following relational expression of n=T/(t*n) which is met by the elevator number n needed by the working rush hour, N represents the number of the passengers capable of being loaded when the elevator is fully loaded, and elevator planning of a traffic critical period can be simply and rapidly completed.

The invention discloses a method for regulating chlorophyll content in rice leaves. The method comprises the steps of conducting germination on rice seeds in deionized water, cultivating rice seedlings with a hydroponic nutrient solution, cultivating the obtained rice seedlings in the hydroponic nutrient solution in which o-dihydroxybenzene is added from the rice seedling stage for regulating thechlorophyll content, stopping the cultivation until the end of the rice tillering preliminary stage, and completing the adjustment of the chlorophyll content of the rice leaves. The method uses the o-dihydroxybenzene as a growth regulator of exogenous crops, and can effectively regulate the content of chlorophyll in the rice leaves, the action period is a critical period of rice vegetative growth(from the rice seedling stage to the tillering preliminary stage), thereby affecting rice biomass and yield, the operation process is simple, the operating conditions required are not high, and the environment protection pressure is alleviated.