57results about How to "Significant safety benefits" patented technology

An apparatus for sectioning fresh unfixed tissue into very thin layers with preserved tissue architecture, antigenicity, mRNA content, and amenable to 3-D computer reconstruction without mechanical or thermal damage by employing a sectioning tool having an electrode with an intense focused electrical field at an edge. A computer controlled x-y-z translation stage moves the sectioning tool through the tissue as defined by a predetermined program. The sectioning tool produces consecutive thin sections of fresh tissue for immunohistochemical and nucleic acids analyses without mechanical or thermal damage, ultimately allowing high-resolution volumetric reconstruction of gene and protein expression patterns of large tissue specimens. The geometry of the sectioning tool is selected so as to produce a spatially localized electrical field of sufficient intensity to sever molecular bonds or propagate flaws in tissue without mechanical cutting.

The invention relates to a live-working drainage wire bracket which is characterized in that a plurality of through holes (21) are uniformly formed in a sleeve (2); the rear end of the sleeve (2) is connected with a fixing device (4) through a T-shaped plate (22); elastic pins (11) in match with the through holes (21) are arranged on a moving rod (1); a fixing clamp (5) is arranged at the end part of the moving rod (1); the fixing device (4) consists of a left semicircular bracket (41) and a right semicircular bracket (42); one end of the left semicircular bracket (41) is hinged with one end of the right semicircular bracket (42); the other end of the left semicircular bracket (41) is fixed on one side of the T-shaped plate (22); the other end of the right semicircular bracket (42) is slightly shrunk and is movably connected with the other side of the T-shaped plate (22), so that the right semicircular bracket (42) can be opened and conveniently fixed on a electric power pole. By adopting the bracket, a live-working drainage wire can be effectively fixed, the times of power outage are greatly reduced, and the reliability in power supply is improved.

A vehicle notification sound emitting apparatus is basically provided with a first sound emitting device, a second sound emitting device and a notification sound control device. The first sound emitting device emits a first intermittent notification sound inside a cabin interior of a vehicle. The second sound emitting device emits a second intermittent notification sound outside of the cabin interior of the vehicle. The notification sound control device operates the first and second sound emitting devices to separately emit the first and second intermittent notification sounds in at least a partially overlapping pattern in response to occurrence of a vehicle condition to convey a same type of vehicle information to both inside and outside of the cabin interior of the vehicle. The notification sound control device includes a cabin interior-exterior notification sound synchronizing section that is configured to synchronize the first and second intermittent notification sounds.

The embodiment of the invention discloses a construction method for excavating square piles through a rotary excavating machine and a square chiseling head combined. The construction method comprisesthe following steps that (1) pile casings are embedded; (2) pile positions are set out; (3) small drilled holes are subjected to rotary excavating; (4) large drilled holes are subjected to rotary excavating; (5) the square chiseling head conducts trimming and hole clearing, and the square chiseling head comprises a connecting part and a square pipe, wherein one end of the connecting part is detachably connected with a drill rod of the rotary excavating machine, one end of the square pipe is fixedly connected with the outer wall of the connecting part, a notch is formed in the other end of thesquare pipe, and the notch is provided with a plurality of bucket teeth at intervals; and (6) pile hole forming detection is conducted, reinforcement skeletons are mounted, pile foundation concrete ispoured, the pile casings are detachably and pulled, thus the square piles are formed, and square pile construction is completed. According to the construction method, by designing the square chiseling head, after the rotary excavating machine adopts a traditional rotary excavating drill bit to drill circular holes, the rotary excavating drill bit is replaced with the square chiseling head, the inner walls of the pile holes are trimmed, thus a mechanical trimming mode of the square chiseling head replaces an existing manual excavating mode, the construction duration is obviously shortened, andthe construction efficiency is improved.

The invention discloses a generator set three-stage parallel serial connection bypass system and an adjusting method thereof. The system comprises a high-pressure bypass system, a low-pressure bypasssystem and a low-low-pressure bypass system; the high-pressure bypass system comprises a high-pressure bypass filter, a high-pressure bypass valve and a high-pressure bypass isolation valve, the low-pressure bypass system comprises a low-pressure bypass filter, a low-pressure bypass valve and a low-pressure bypass isolation valve which are sequentially connected between a reheating steam heat segment pipeline and a condener, the low-low-pressure bypass system comprises a low-pressure cylinder isolation valve and a medium-pressure exhaust low-pressure bypass communication valve, the low-pressure cylinder isolation valve is arranged on an air guide pipe between a medium pressure cylinder and a low-pressure cylinder, an inlet pipeline of the medium-pressure exhaust low-pressure bypass communication valve is arranged on a medium-pressure cylinder exhaust pipeline, an outlet pipeline is arranged on a pipeline between the low-pressure bypass valve and the low-pressure bypass isolation valve,the high-pressure bypass system and the low-pressure bypass system are connected through a high and low pressure bypass communication valve, and a pipeline between the low-pressure bypass valve and the isolation valve is connected with a heat net heater through a low-pressure bypass heat supply adjusting valve.

The invention relates to a method for removing arsenic impurities from tin. The method comprises the following steps of: adding an arsenic-containing tin alloy into a vacuum furnace, wherein arsenic elements in the tin are volatilized under the conditions that pressure in the furnace is in the range of 0.1-50Pa, the temperature in the furnace is between 1000 DEG C and 1500 DEG C, and the volatilization time of the arsenic-containing tin alloy is more than 0.25h; condensing the arsenic elements to obtain a metal arsenic; and separating the arsenic from the tin to obtain crude arsenic containing more than 90% of arsenic, wherein the removal rate of arsenic is greater than 90%. The invention provides a novel process for removing the arsenic from tin; the whole process is safe and controllable; and the method has the advantages of convenience for operation, high recovery rate of tin and arsenic, no need of adding chemical reagents and no pollution on the environment.

Embodiments of the present invention are directed to devices and methods for performing photoreactions of photo-reacting compounds in solution. The invention features a vessel and a light source. The vessel has at least one wall defining a chamber. The chamber, for performing photoreactions, has a chamber volume, a first window, an inlet and an outlet. The inlet and outlet are in fluid communication with a source of photo-reacting compounds in solution. The first window is transparent to light transmission and is placed in optical communication with a light source to receive photons. The chamber is for receiving a solution over time to define a dwell time. The solution potentially has one or more photo-reactive compounds having a concentration. The device further comprises a light source, in optical communication with the first window, for emitting photons which photons are received by the first window and transmitted into the chamber.

The invention discloses a hydraulic railhead track jack and a use method thereof. The hydraulic railhead track jack comprises an oil tank and a base; the oil tank is arranged at the top of the base; alifting handle is connected to the oil tank; a manual oil return valve is also arranged on the base; a track lifting structure is arranged at the bottom of the base; the track lifting structure comprises a pair of track lifting hooks symmetrically arranged; hook heads of the two track lifting hooks are also oppositely arranged; rotating shafts are arranged on the track lifting hooks; the interiors of the rotating shafts are in communication with the oil tank; the track lifting hooks are connected to the bottom of the base through rotating shafts so that the track lifting hooks turn over to the external sides for 90 degrees to rotate around the rotating shafts; a hydraulic oil cylinder is connected to each track lifting hook; the two hydraulic oil cylinders are also symmetrically arranged;and rotatable feet are connected to piston ends of the hydraulic oil cylinders. The hydraulic railhead track jack can be applicable to but not limited to the track lifting operations of broad-gauge sleeper slabs under a situation of a small space.

The invention provides an old foundation treatment construction method for an underground diaphragm wall. The method comprises the following steps that S1, a guide wall groove is excavated; S2, a guide wall is constructed, wherein after the guide wall groove is excavated and an old foundation is ascertained, the excavation width of the guide wall groove is expanded according to the position of the old foundation, then a groove bottom cushion layer and guide wall steel bars are subjected to binding construction, the guide wall steel bars are bound according to the expansion of the groove, and after that, single-side formwork erection and guide wall concrete pouring construction are conducted; S3, old foundation impact treatment is conducted, wherein after the guide wall maintenance reaches the age, the old foundation in a groove section is subjected to impact crushing; S4, grooving construction is performed, wherein grooving construction is conducted after old foundation impact treatment is completed; S5, reinforcing meshes are manufactured and installed; and S6, the groove section is poured. According to the method, the material waste in the construction process and the later bulge treatment difficulty are reduced at the same time, the diaphragm wall construction quality is guaranteed, and the economic, quality and safety benefits of implementation and application are remarkable.

The invention relates to the technical field of plate paint spraying, in particular to a plate paint spraying device for electric fire box production. The device comprises a rolling barrel conveyor and a support; the top ends of the rolling barrel conveyor on the front side and the rear side are rotationally connected with the bottom end of the support, a spring is fixedly connected to the rear end of the support at the front side, and a rubber disc is rotationally connected to the rear end of the spring at the front side; a horizontally arranged plate is arranged at the rear end of the rubberdisc at the front side, and a gear is fixedly connected to the outer side of the rubber disc, the reverse rotation of the plate is realized through the rubber disc. According to the device, the rubber disc, the gear and a rack are arranged, the reverse rotation of the plate is realized, painting of the back face and the side face of the plate are facilitated, the side face of the plate is prevented from being affected with damp deformation, the electric fire box can be conveniently and stably spliced, manual painting is not needed, time and labor are saved, leakage coating is prevented, and quality of a finished product paint plate is guaranteed; and the design concept is ingenious, the design is reasonable, huge safety benefits and wide application prospects are achieved, and the deviceis worthy of popularization and use.

The embodiment of the invention discloses a tunneling roadway impact ground pressure ground sound pre-warning method and device. The method includes the steps that ground sound probes are arranged inpotential dangerous zones of a roadway tunneling surface; the ground sound probes are subjected to noise reduction; the ground sound probes are used for acquiring the ground sound energy or frequencyof the current tunneling surface; and the ground sound energy or frequency of the current tunneling surface is analyzed through an MK trend test algorithm, time sequence characteristics of impact ground pressure ground sound precursors are determined, and the impact danger of the tunneling surface is determined according to the time sequence characteristics. The time sequence characteristics of ground sound monitoring data of the roadway tunneling working surface can be fully analyzed, and precursor information of impact ground pressure can be caught in time. By means of the method, danger evaluation and short-time real-time pre-warning of a ground sound monitoring system for the impact ground pressure of the tunneling working surface are effectively improved.

The invention relates to a manually-operated electric tool which comprises a switch (18) for switching on or switching off the circuit of an electric driver (21) thereof, and electric connection devices (26, 28) arranged in the circuit. The manually-operated electric tool can be easily modified by adding circuits to meet the corresponding newly requirements for safety. The manually-operated electric tool further comprises a coupling device (36) used for subsequent electrical connections of the circuit, particularly electrical connection with electric and/or electronic circuits (50) that are not originally provided in the power circuit.

The invention relates to the technical field of spraying devices and particularly relates to a spraying device with an adjustable connecting rod. The spraying device comprises a shell body and a sealing ring, wherein the inner side of the right end of the shell body is fixedly connected with the outer side of the sealing ring, the inner side of the sealing ring is rotatably connected with a rotarycolumn which is horizontally arranged, a piston plate is arranged at the outer side of the rotary column, the right end of the sealing ring is rotatably connected with a rotating plate which is arranged vertically, and the top end of the rotating plate is fixedly connected with a connecting rod which is arranged vertically. According to the spraying device with the adjustable connecting rod, a hand grip position on the connecting rod can be adjusted through an arranged spring, a rubber block and a piston, free adjustment can be performed according to difference of arm lengths and force applying habits of all practitioners, occupational disease symptoms such as arthritis and scapulohumeral periarthritis caused by long-term manual work are avoided and reduced, and thus, health of work of the practitioners is facilitated; and this design is novel in conception and is scientific, so that the spraying device has huge safety benefits and extensive market prospects and is worthy of popularization.