124results about How to "Promote harmony" patented technology

The present invention relates to regulated power supplies or ballasts integrated with an LED light source. The invention provides a power factor correction scheme producing a greater circuit power factor and improved frequency spectrum characteristics, in which a voltage corresponding to the instantaneous inductor current is sampled and compared to a scaled sample of the rectified input AC line voltage. The line voltage sample modulates the inductor peak charge current in the envelope of the rectified AC voltage waveform. This drives the LED output voltage at a frequency of twice the input line voltage frequency, such that no flicker is perceived in the light output because the persistence in LED phosphor assists in averaging the flux output.

The invention discloses a high-sublevel subdivision mining method of a moderately thick heavy-pitch waste-rock-containing interlayer phosphate orebody along a strike. The high-sublevel subdivision mining method comprises four steps of exploiting, mining preparation, cutting and recovery, wherein a footwall intermediate-section main roadway is respectively arranged on a high sublevel along a top plate and a bottom plate of the orebody, and the intermediate-section main roadways of the top plate and the bottom plate are connected through a communication channel at intervals of 100m, therefore reduced roadway cutting construction, small development rate and simple process are achieved; after overall blasting of a stope is finished, a large amount of concentrated ore drawing is carried out, and the production efficiency is high; tail sand is adhered and filled after space pillars are mined first, then rooms are evacuated, and the rooms are filled with waste rocks or tail sand in a non-adhering way, thus recovery rate is high; and the high-sublevel subdivision mining method has little damage to the environment and capabilities of changing oredressing tail sand and waste rocks generated in open-air production into valuables and reducing geological disaster from happening. Due to the adoption of the high-sublevel subdivision mining method disclosed by the invention, ore recovery rate can be increased, ore dilution rate and emission of mine wastes are reduced, capacity of slag disposal pit is relatively increased, expropriation of land is decreased, and mineral land harmony is promoted.

The invention relates to a zebra crossing pedestrian monitoring and warning device based on laser inspection. The current devices have bad using effects. The device of the invention comprises a pedestrian monitoring device, a control box and signal lamps, wherein the pedestrian monitoring device comprises two trigger gates respectively arranged at the start and end of a zebra crossing; each trigger gate comprises a laser emission column and a laser pick-off column arranged on a sidewalk respectively at two ends of the zebra crossing; the laser emission column of each trigger gate emits laser beam and the laser pick-off column of each trigger gate picks off the laser beam; when a pedestrian passes through the trigger gates, the laser beam is cut off; two rows of signal lamps are respectively arranged at two sides of the zebra crossing; and the control box is arranged on a telegraph pole of the sidewalk. The device of the invention adopts the pedestrian monitoring systems arranged at two ends of the zebra crossing, and each pedestrian monitoring system is additionally provided with a passing in and out direction judging function, thereby improving the efficiency of system operation. The device of the invention is more conductive to remind drivers to avoid collision to reduce hidden danger of traffic accidents.

The invention discloses a lightweight peccancy parking detection device based on full view vision. The device comprises a full view vision sensor which is used for acquiring a video image of a wide range monitoring zone and a microprocessor which is used for analyzing and understanding the video image and carrying out peccancy parking detection. A high definition camera is connected with the microprocessor through a video interface, and carries out real-time vision detection on vehicles on a road. When the behavior of peccancy parking is detected in a vision detection range, a peccancy parking driver is told or warned not to carry out peccancy parking through a voice playing unit. If the parking time exceeds a specified time threshold, a system snapshots a peccancy vehicle, and automatically generate a peccancy parking record. According to the invention, a video image detection method which uses points to replace a side is used to reduce spatial redundancy, thus lightweight peccancy parking vision detection is realized.

The invention discloses a commodity transaction settlement method and system, which can effectively solve the two problems of difficulty in financing and settlement of small and medium enterprises in the field of commodity transaction settlement. The technical scheme is as follows: a settlement center is introduced besides a supplier, a purchaser and a third-party logistics (TPL), thus integrating the purchaser, the supplier, the TPL and the settlement center tightly and organically as a common body. A triangular circular flow chain is formed among the settlement center, the supplier and the purchaser, namely, the settlement pays the supplier in advance, and then the purchaser repays the delayed factoring goods payment to the settlement center in a preset period. Under the pattern, a whole supplying chain financial system is controlled by an electronic business information system, thus removing all anthropic factors, being capable of realizing rapid payment return of the supplier by realizing real transaction and delivery only if commodities are good for sales, and thoroughly solving the dilemma of difficulty in payment settlement.

The invention discloses a phytoremediation method for soil with cadmium pollution. The method comprises the following steps: ryegrass is planted in soil with cadmium pollution; organic acid is added before harvest, and the organic acid is one selected from ethylene diamine tetraacetic acid, oxalic acid, glacial acetic acid, propane diacid, tartaric acid or malic acid. In the method, based on ryegrass as a biomass raw material, when the ryegrass is used to restore the soil with cadmium pollution, through activation and induction actions of the organic acid, the bio-availability of heavy metal cadmium is raised, absorption and enrichment of cadmium of plants are promoted, and therefore the phytoremediation speed of soil with heavy metal pollution is raised. In addition, the organic acid can promote increase of amount of dry matter of overground parts and root systems of ryegrass to some extent, and finally, long-term goals of harmony of soil productivity restoration and local landscapes, ecological balance and sustainable development are achieved.

The invention discloses a saline-alkali soil improving method by engineering-chemistry-biology-desalination and water conservation-information technology. The saline-alkali soil improving method includes steps of S1, lowering salt content in the saline-alkali soil to be treated gradually by engineering measures and isolating and discharging soluble salt in the soil; S2, reasonably utilizing water resource of the saline-alkali soil to be treated by brackish water desalination technology; S3, reasonably irrigating the saline-alkali soil to be treated by water-saving irrigation technology; S4, online detecting the saline-alkali soil to be treated by information technology; S5, improving chemical components of the saline-alkali soil to be treated by chemical measures; S6, finally improving the saline-alkali soil to be treated by biotechnology measures. The saline-alkali soil improving method provides a feasible, economic and efficient scheme for improving the saline-alkali soil in coastal regions, improvement time is short, effect is good and no backflow is caused after improvement.

The invention discloses a fabricated prestressed heat-resistant cement concrete pavement and a construction process thereof. The pavement is formed by splicing a plurality of fabricated prestressed heat-resistant pavement plates which are parallelly paved and connected into a whole through transverse prestressed steel stranded wires, wherein each fabricated prestressed heat-resistant pavement plate comprises a fabricated prestressed pavement plate which consists of a plurality of pavement plate blocks connected through connecting plates, and a vermiculite concrete heat-resistant paving layer which is paved on the fabricated prestressed pavement plate; each pavement plate block comprises a plurality of common plates which are connected into a whole through longitudinal prestressed steel stranded wires; and the connecting plates and the common plates are cement concrete prefabricated plate blocks. The construction process comprises the following steps of: 1, prefabricating the cement concrete prefabricated plate blocks; 2, transporting the cement concrete prefabricated plate blocks; and 3, paving the pavement. The pavement is reasonable in structural design, convenient to construct, low in input cost and short in construction period, and has heat resistance, construction quality is easy to ensure, and various practical problems of the traditional fabricated cement concrete pavement can be solved.

The invention discloses a method for evaluating and optimizing auto generation control (AGC) effect of a large power network grid-connected power plant. The method is characterized by comprising the following steps of: 1) acquiring machine set power, AGC in-service and out-of-service signals, AGC adjustment limit value and AGC command data from an EMS system; 2) accurately calculating the actual rate of the AGC through a linear area search speed test method and a forced unperturbed speed test method; and 3) examining the parts, which do not satisfy a basic AGC service, according to an AGC basic service examination algorithm and an AGC assistant service compensation algorithm, and compensating the parts of an AGC assistant service. In an integrated system for the operation evaluation of the large power network grid-connected power plant in a certain area, the method originally realizes the evaluation of the comprehensive effect of the power plant AGC, examines the parts which do not satisfy the basic AGC service, compensates the parts of the AGC assistant service, promotes the plant-grid harmonization, and upgrades the operation stability of the power network.

The invention discloses a flattening conducting information system which comprises a service management unit, a mesh patrol unit, an alarm-receiving auxiliary unit, an alarm-handling auxiliary unit, a ring layer sealing control unit, a police order transmitting unit, a pre-plan management unit, an intelligence combat unit and a video prevention and control unit. The service management unit is used for achieving precision management and evaluation of organizations, operators on duty, vehicles on duty and carried weapons. The requirements for everyday service management, performance evaluation, intensifying actual combat and practical working of various police classes of police security are really met, and the distance between the people and the police is completely shortened. The existing police basic system and the practical service current situation are combined, a brand-new conducting and dispatching mode with information image, voice interaction and scientific instruct effective executing and timely feedback combined is established in an innovation mode, conversion from single-direction passive reaction type service to a double-direction active response mode is well promoted, the visualization and the flattening of a service conducting mode are achieved, service efficacy is further improved, an active service mechanism is strengthened, and police-people harmony is promoted.

The invention discloses a comprehensive utilization method for tail gas in the production of a mercuric chloride catalyst. The method comprises the following steps: the temperature of tail gas coming from a dryer in the production of the mercuric chloride catalyst is between 90 and 105 DEG C; the discharge temperature of the tail gas of which the waste heat is recovered is controlled to be not higher than 45 DEG C through a heat exchange device serially connected with the back of the dryer; the tail gas of which the waste heat is recovered and the tail gas which comes from the other processes in the production of the mercuric chloride catalyst are mixed together, and enters from the lower part of a filler countercurrent gas-washing tower; mixture liquid of BaCl2 and Ba(OH)2 is continuously sprayed down from the top of the filler tower to perform countercurrent gas washing; liquid after washing flows into an anticorrosion circulation tank on the bottom of the tower; washing liquid is continuously circulated and sprayed under the action of a circulating anticorrosion pump; and the tail gas after washing is adsorbed to remove foam through dry activated carbon in an activated-carbon device for adsorbing and removing foam, so as to obtain the tail gas reaching discharge standard. The method can ensure that the tail gas after purification treatment reaches the discharge standard, and both solid waste and liquid waste generated can be directly used for producing the mercuric chloride catalyst, so as to save energy and reduce consumption.

The embodiment of the invention provides a shadow evaluation method, device and system for a wind power plant. The shadow evaluation method comprises the steps that the meteorological information of the wind power plant is obtained; and whether shadow is generated by wind power generation units of the wind power plant or not is judged according to the meteorological information of the wind power plant. According to the shadow evaluation method for the wind power plant, whether shadow is generated by the wind power generation units in the wind power plant or not is judged according to the meteorological information of the wind power plant, and the judgment result, based on the comprehensive meteorological information of the wind power plant, of the shadow flicker effect is more accurate and more credible, so that subsequent further evaluation of the influence range of the shadow flicker effect is facilitated, and the negative influences of the shadow flicker effect on surrounding potential objects can be reduced easily.

The invention discloses a safe-operation method of a social platform. The safe-operation method of the social platform is characterized in that a user registration controlling module, a user login controlling module, a data mining module, a risk rating module and a data base are arranged in a social platform server. The safe-operation method of the social platform includes the following steps of device fingerprint identification of a mobile terminal; data mining and risk evaluation; and track of the mobile terminal, wherein each ID corresponding to each device is only allowed to register less than three effective accounts, the data mining module conducts keyword search on interaction information occurring on the social platform, the risk rating module is used for conducting risk evaluation on interaction information which relates to sensitive information keywords on the social platform, and the ID of a corresponding device is tracked by means of the effective accounts. Due to the fact that the safe-operation method of the social platform is applied to soft hardware transformation of the social platform server and the mobile terminal, the phenomenon of counterfeit fans is effectively restrained, spreading of false commercial advertising which violates commercial ethics and social morality and political propaganda information is contained, and safe and healthy operation of social contact is promoted.

The invention discloses a children acute lymphoblastic leukaemia genotyping diagnosis chip. The children acute lymphoblastic leukaemia genotyping diagnosis chip is a DNA chip which is fixed with 62 DNA fragment arrays on the surface of a carrier. .The nucleotide sequences of the 62 DNA fragment arrays are respectively the sequence 1 to the sequence 62 of the sequence list. The invention further discloses a children acute lymphoblastic leukaemia genotyping method. The genetic chip of the invention can provide precise typing so as to help correctly choose a chemo-treatment plan of appropriate strength, thereby reducing complicating disease and improving curative ratio and life quality. The genetic chip of the invention can be used to carry out genotyping on childhood ALL. Therefore, the genetic chip not only saves diagnosis cost, but also has significance in protecting labour resource and promoting family and society harmony.

The invention provides a frequency management method and system for a low-power wide-area network based on broadcast and television frequency bands. Periodic sweep frequency detection is carried out on a preset frequency band range by a spectrum sensing unit; a spectrum management unit is informed of a spectrum state; a different-frequency networking mode is employed among gateways of the low-power wide-area network; a frequency band range is dynamically adjusted according to a spectrum environment state monitored by the spectrum sensing unit; and the spectrum management unit is informed of updating spectrum utilization information in real time. According to the method and the system, the interference resulting from the same frequency between different Internet of things services is reduced to a great extent; the coexistence of an Internet of things service and a broadcast and television service is realized; and the good user experience and a high-efficiency spectrum utilization rate are provided.

The invention discloses a flattening conducting information system mesh patrol system and method. A patrol task management module, a patrol duty checking module, a patrol roll call module, a patrol studying and judging module and a patrol evaluation module are included. The patrol task management module is used for establishing a patrol task according to the occurring features of patrol zone stage illegal criminal cases. The patrol duty checking module is used for checking, supervising and urging the task executing situations of a patrol group. The patrol roll call module is used for checking, supervising and urging the task executing situations of patrol members. The patrol studying and judging module is used for overlapping recent case distribution diagrams and various case statistics situations on a patrol mesh. The patrol evaluation module is used for comprehensive evaluation on the task executing grades of patrol personnel. A brand-new conducting dispatching mode with information images, voice interaction, scientific instruction effective executing and timely feedback combined is established in an innovation mode, conversion from single-direction passive reaction type service to a double-direction active response mode is well promoted, the visualization and the flattening of a service conducting mode are achieved, and service efficacy is improved.

The invention discloses a flattening conducting information system alarm-receiving auxiliary system and method. An alarm-receiving auxiliary unit comprises an alarm-receiving information recording module, a crime site map showing module and a crime site and periphery video monitoring information calling module. The alarm-receiving information recording module is used for recording alarming information. The crime site map showing module is used for showing a crime site on a map, and recorded detailed alarm-receiving information is checked by clicking. The crime site and periphery video monitoring information calling module is used for calling crime site and crime site periphery video monitoring information, and the case reporting content of an alarm giver is verified. During alarm receiving, alarm-receiving information is recorded comprehensively in a systematic mode, the police is helped to carry out alarm receiving, alarm handling and police dispatching, monitoring video of a crime site or a crime site periphery can be called timely, flattening management is achieved, step-by-step application is of no need, efficiency is high, the case reporting content of the alarm giver can be verified accurately and reliably, effective alarming is pushed, and invalid alarming is filtered.

The invention discloses a carriage of a virescence maintenance sprinkler. The carriage comprises a carriage body, wherein a water storage tank is arranged in the middle of the carriage body and connected with a pressurizer; a dust collector A is arranged at the front end of the water storage tank; a dust collector B is arranged at the rear end of the water storage tank; the lower end of the water storage tank is connected with two spray pipelines; a water nozzle is arranged at the top of each spray pipeline; a water filling hole is formed in the upper end of the water storage tank; a high-pressure water pipe is arranged on the panel of the water storage tank. The carriage is compact in structure and simultaneously has the three functions of virescence, dust collection and fire disaster relief, and the functions of the carriage are fully utilized.

The invention discloses a multichannel man-machine interaction table surface television. A laser screen scanning device is installed on the outer surface of a television screen; when a finger or an object is in touch and carries out multichannel interaction with the outer surface of the television screen, a laser screen is intercepted by touch; a reflecting light spot image signal of man-machine interaction is formed on the surface of the screen; the signal is collected by a recognizing device and forms a recognizing control signal for being transmitted to a computer program processor device to be fused with the surface display of the television screen after analyzing man-machine interaction signals of all channels; and the recognizing control signal can also be used for starting multichannel man-machine interaction instruction executing operation, such as near field communication for carrying out communication interaction between a television and a mobile phone, and the like. The invention also discloses a method for fixing a table surface television casing and a high-thickness transparent screen base. The connecting positions of the high-thickness transparent screen base and four edges of an upper opening of a table television casing are made into a plurality of through holes for fixing screws so that the high-thickness transparent screen base is tightly fixed on the table surface television casing.

The tonic wine with the functions of invigorating kidney, producing life essence and strengthening Yang is prepared with spirit and ten kinds of Chinese medicinal materials including angelica, epimedium, desert cistanche, gecko, prepared rhizome of rehmannia, etc. It has obvious effects and mild cost.

The invention discloses a gas insulating transformer, which is composed of a gas tank, an iron core, a low voltage winding, a high voltage winding and an insulating medium, wherein the iron core is arranged in the gas tank; the low voltage winding and the high voltage winding are both sheathed on the iron core, the high voltage winding is arranged on the outer side of the low voltage winding, and the low voltage winding and the high voltage winding are separated by insulating materials; the insulating medium is purely gaseous SF6; the high voltage winding adopts a tangled-continuous structure, and the surfaces of the conductors of the low voltage winding and the high voltage winding are insulated and made of PET materials. The invention has favorable safety performance and small floor space; compared with the traditional power transformer, the invention lowers no-load loss by 20%, lowers no-load current by 30%, and lowers load loss by 10%; and compared with the transformer with the same volume, the invention lowers yearly operation cost by about 15% averagely and saves cost for enterprises.

The invention belongs to the technical field of hydraulic engineering construction and relates to a process method for borrowing earth used for embankment reinforcement. The method solves the problems of large earth volume required in an embankment reinforcement project, large operational pressure in land acquisition in the early period of the project, poor construction conditions and large project investment. The construction method is as follows: borrowing earth from dyke protection areas to earth up an embankment, and then getting earth beside river banks in wider floodplain areas with hydraulic power to fill borrow pits in the dyke protection areas to realize replacement earth borrowing for embankment reinforcement. The construction according to the method can save areas of permanently acquired land and acquired reclaimable land and consequently saves project investment. At present, upper reaches of rivers and river branches are blocked seriously. The replacement earth borrowing technique of the invention, together with river improvement, contributes to flood discharge and shipping condition enhancement by removing the earth volume in the floodplain areas.

The invention discloses a traditional Chinese medicinal composition for enhancing immunity and relieving fatigue, as well as a preparation method and application of the traditional Chinese medicinal composition. The traditional Chinese medicinal composition for enhancing the immunity and relieving the fatigue comprises the following raw materials in parts by weight: 1 to 6 parts of radix astragali, 2 to 8 parts of rhodiola rosea, 2 to 5 parts of acanthopanax root and 2 to 10 parts of rhizoma polygonati; the invention also discloses the application of a medicinal composition which consists of water and / or alcohol extracts of the raw materials above serving as active ingredients and pharmaceutically acceptable additives in preparation of food, healthcare food or a medicine for improving human immunity and relieving the fatigue. The traditional Chinese medicinal composition for enhancing the immunity and relieving the fatigue, and the preparation method and the application thereof have the beneficial effects that the formula comprises the four traditional Chinese medicinal raw materials, namely, the radix astragali, the rhodiola rosea, the acanthopanax root and the rhizoma polygonati, which can be used as food and medicines; the raw materials which can be used as the food and the medicines can be used as delicious food for eating, and can also be used as medicinal materials for treating diseases; through a plurality of years, even hundreds of years and thousands of years eating, the raw materials which can be used as the food and the medicines are proved to be beneficial and harmless to human bodies, and are suitable for common population to eat for a long time; the four raw materials in the product are environmentally friendly, so that the immunity can be enhanced, the fatigue can be relieved, the safety is high, and adverse actions are avoided.

The invention provides an antisepsis and anti-inflammation sanitary towel for eliminating melanin at genitals and promoting blood circulation. The sanitary towel comprises a non-woven fabric surface layer and an inner water absorbing layer, wherein a packing interlayer is arranged between the non-woven fabric surface layer and the inner water absorbing layer. The sanitary towel is characterized in that the packing in the packing interlayer comprises a powder mixture of traditional Chinese herbal medicines and tourmaline, wherein the traditional Chinese herbal medicines comprise American ginseng, Puer tea, carrots, raspberry, tea flowers, ginger, kudzu vine roots, dwarf cowlily seeds and bee glue. By adopting the formula, the traditional Chinese herbal medicines do not need to be orally taken, but only the sanitary towel or a similar sanitary health product need to be used for a long time, then the color of the skin at genitals of females can be whitened, the skin elasticity can be recovered, functions of antisepsis and anti-inflammation can be achieved, gynecological diseases can be prevented, and the sex harmony can be promoted.

The invention relates to a health-care food having functions of balancing nutritive cells and recuperating five internal organs. A making method of the health-care food comprises the following steps of taking cereal type materials and seed type materials, performing stir-frying, and performing grinding to obtain 200-mesh powder; and performing freeze-baking on other materials, performing grindingto obtain 200-mesh powder, and performing mixing to obtain the health-care food. The health-care food is purely natural, free from additives, free from transgenesis, free from pesticides and heavy metal remains, scientific and professional in formula, comprehensive in nutrient collocation, convenient to eat, and good in mouth feel, is suitable for different crowds to eat for a long term, is free from any side effects, and can improve body healing capacity, delay senescence and prolong life.

The invention discloses a flattening conducting information system pre-plan management system and method. A pre-plan exercise module comprises a pre-plan selecting sub-module, an exercise mode selecting sub-module, a video pre-plan retrival sub-module, a pre-plan force checking sub-module, an instruction sending sub-module and a resource displaying sub-module. A pre-plan executing module comprises a pre-plan selecting sub-module, an exercise mode selecting sub-module and a video pre-plan retrival sub-module. An electronic sand table module is used for carrying out quick police strength deployment and resource calling for an emergency on an empty map, and a displayed pre-plan is subjected to emptying operation. A system management module is used for maintaining an icon unit. A series of rehearsing for large-scale security activities of public security, police strength deployment, resource presentation, auxiliary decisions and decision instruction presentation of the emergency are achieved, all levels of personnel achieve line deployment and pre-management of information of vehicle, personnel and the like according to the pre-plan management system, practical experience is increased, and preparation for the emergency is achieved in advance.

The invention relates to a storied house which has a fire-retardant structure and mainly consists of three areas: A, B and C; the Area A is for living / commercial purpose and is positioned at the outer layer of the cross-sectional geometric shape of the whole building, the upstairs dweller and the downstairs dweller in the area is completely separated; the Area B is a vertical channel, is positioned at the central position of the cross-sectional geometric shape of the whole building, and is used for installing the elevator, water and power shaft and pedestrian stairs; The Area C is between the Area A and the Area B, is used for connecting the Area A and the Area B and is a safe platform area for the public use and fire-control evacuation. The invention arranges the commercial / living area, the public area and the elevator / fire-control stair in a separate way, no vertical channel is arranged between the dwellers in the commercial / living area, which improves the utilization ratio of the elevator and saves the energy source; the public area provides a platform for the neighbors to communicate with each other and a space for afforestation, which can promote the interpersonal communication, friendship and the living quality of the dwellers; the fire-control safety performance is higher as no vertical channel is arranged between the dwellers in the commercial / living area.

The invention relates to a method for plant-animal-microorganism combined restoration of an abandoned steel rehabilitation hill, belonging to the technical field of ecological restoration. According to the invention, a steel rehabilitation hill is divided into a steel rehabilitation hill foot restoration zone, a steel rehabilitation hill versant restoration zone and a steel rehabilitation hill toprestoration zone, wherein each area adopts different animals, plants and microorganisms. For the steel rehabilitation hill foot restoration zone, the method of restoration via a combination of Xanthoceras sorbifolium Bunge, Haloxylon ammodendron and VA mycorrhizas is adopted; for the steel rehabilitation hill versant restoration zone, the method of restoration via a combination of creepers and earthworms is adopted; and for the steel rehabilitation hill top restoration zone, the method of restoration via a combination of torch trees and AM mycorrhizas is adopted. With the method, the landscape of the steel rehabilitation hill and the surrounding landscape are made beautified, and the quality of water around the steel rehabilitation hill is greatly improved.

The invention discloses a connecting piece of a vertical swirl and water drainage pipe in a caisson type restroom. A nut cover, a plastic gasket, a pipe tightening rubber ring, a vertical pipe seat at the layer, a tee joint, a dust remover, a waist seat body, a swirl pipe body and a vertical pipe seat at the lower layer are arranged sequentially from the top to the bottom end, wherein a small cylindrical lug boss of the dust remover is fixed with a dust remover positioning hole of the waist seat body in a glue joint manner; the waist cylindrical surface of the waist seat body is fixed with the lower glue joint surface of the vertical pipe seat at the lower layer in a glue joint manner; the middle cylindrical surface and the upper glue joint surface of the tee joint are respectively fixed with the waist cylindrical surface of the waist seat body and the upper cylindrical surface of the vertical pipe seat at the layer in a glue joint manner; the pipe tightening rubber ring and the plastic gasket are arranged at the upper end of the inner part of the vertical pipe seat at the layer and are pressed and fixed through the nut cover; the swirl pipe body is fixedly arranged in the vertical pipe seat at the lower layer. The connecting piece has the advantages of simple structure, scientific design and reasonable arrangement. Besides, the problem of the secondary water drainage for the leakage of the deposited water in the caisson during the water drainage at the same layer is solved, and the connecting piece can be widely applied to water drainage pipeline systems of industrial buildings and residential buildings.

Provided is a fragrance composition containing a compound that is highly harmonious with other various fragrances and that can impart a stronger floral feeling by being blended. A fragrance composition containing 3,6-dimethyl-heptane-2-ol. The fragrance composition may further contain at least one selected from the group consisting of, for example, 7-methyloctane-3-ol, esters, carbonates, aldehydes, ethers, lactones, and alcohols other than 3,6-dimethylheptane-2-ol.