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A question-answering system for searching exact answers in text documents provided in the electronic or digital form to questions formulated by user in the natural language is based on automatic semantic labeling of text documents and user questions. The system performs semantic labeling with the help of markers in terms of basic knowledge types, their components and attributes, in terms of question types from the predefined classifier for target words, and in terms of components of possible answers. A matching procedure makes use of mentioned types of semantic labels to determine exact answers to questions and present them to the user in the form of fragments of sentences or a newly synthesized phrase in the natural language. Users can independently add new types of questions to the system classifier and develop required linguistic patterns for the system linguistic knowledge base.

The invention discloses application and a remediation method of calcium polysulfide in chromium-contaminated soil or underground water remediation. Calcium polysulfide is adopted for chromium contamination remediation, and two remediation methods are particularly related. The method for remediating chromium-contaminated soil by calcium polysulfide comprises the following steps: investigating the chromium contamination degree of soil, preparing a calcium polysulfide water agent, determining the adding ratio of the calcium polysulfide water agent, adding the calcium polysulfide water agent, supplying water, carrying out remediation reaction, maintaining soil and adjusting the nature of the remediated soil. The method for remediating chromium-contaminated underground water by calcium polysulfide comprises the following steps: arranging injection points, determining the amount of a remediation agent, preparing the remediation agent, positioning the injection points, injecting the calcium polysulfide remediation agent, adjusting the positions and amounts of the injection points and the like. According to the invention, the operation process is simple; the agents are stable in source; the reaction speed is high; the remediation effect is good; the chromium-contaminated soil or underground water can be stable for a long time after remediation; the remediation method can be applied to large-scale implementation, is economic and reasonable, and is a relatively ideal chromium-contaminated soil or underground water remediation technique.

The invention relates to a method for preparing a preserved beancurd product, which belongs to the production field of the preserved beancurds. Primary fermentation and after fermentation are the key steps. The production process of the preserved beancurd comprises the following steps: soybean soaking, jordaning, filtering, warming, refiltration, defoaming, adding coagulant and blank forming, dicing, inoculating, primary fermentation, pickling, bottling, adding soup, covering and after fermentation. The raw materials of GMO free and green food are that protein contained in the soy bean is more than or equal to 38%, slag contained in the soy milk is less than or equal to 15%, crude protein contained in the bean dregs is less than or equal to 28%, and the final temperature of the soy milk in the final siruping tank of overflow tanks is more than or equal to 90 DEG C. When the jellied bean curd is 50%, turning over is carried out slowly and the flow rate of the coagulant is reduced, and when the jellied bean curd is 80%, turning over and the flow of the coagulant are stopped for standing statically; the squeezing is carried out at 8-10Mpa, the moisture content of white blank is 66-73%, the inoculation is carried out at the temperature of 40 DEG C, the primary fermentation is carried out for 36-48 hours and cages are exchanged for three times, and the first exchange, the second exchange and the third exchange are carried out respectively at the temperature of 23-28 DEG C, 22-26 DEG C and 18-22 DEG C. wherein, the relative humidity in the three exchanges are all 60%; pickling is carried out for 3-5 days, then after fermentation is carried out at the temperature of 15-30 DEG C for 45-60 days, and the finished product contains 3.5-18% of salt. The method of the invention can be used for preparing the preserved beancurd.

The approaches of the present disclosure provide for the efficient technology of intelligent association of still images with contextual information relating to sounds such as a sound that may have been ambient when a still image was captured. In particular, a user may use a media device, such as a smart phone or tablet computer, to capture a still image and record first audio, for example, at the time of capturing the still image for a predetermined period of time. The first audio may be then processed and analyzed so as to recognize a particular song or melody, and then a high quality second audio related to the recognized song or melody is downloaded and associated with the still image. Accordingly, the visual nature of still images is enhanced with data relating to contextual auditory information, which boosts the sensory and memory experience for the user.

Provided is a novel probe for a biological specimen for labelling by itself and clearly visualizing one of a specific cell and a specific cell organ in a living body, the probe having excellent spectral characteristics and exhibiting excellent storage stability. The probe for a biological specimen contains, as an active agent, at least one kind of compound represented by a general formula (I).