44results about How to "Overcome the shortcoming of single function" patented technology

The invention relates to a tea drink with the functions of moistening the intestine and expelling toxin, in particular to a tea bag prepared from five traditional Chinese medicines of cassia seeds, bunge cherry seeds, apricots, peach seeds and fructus cannabis by crushing and mixing according to a certain ratio. On the one hand, the tea overcomes the defect of single function of the traditional tea bag; on the other hand, what's more important, the tea is mild in relaxing bowel and convenient in use, not only can solve the problem of constipation, but also can not cause diarrhea and also plays roles of of expelling toxin and beautifying the skin.

The invention relates to a macromolecule microcapsule having multiple response in biomedical material technology art and a method for preparing the same. One or a plurality of small hole(s) are provided within the macromolecule of the invention, saturated with biological inert gas in normal pressure, and separated by macromolecule file. Inorganic nano-particles are connected with macromolecule chain by van der waals force, wrapped and winded by the macromolecule chain and existed in a housing and an inner film of the macromolecule microcapsule. The preparing method of the macromolecule microcapsule having multiple response is also provided in the invention. The preparing method and the macromolecule microcapsule having multiple response in the invention can embed multi-functional inorganic nano-particles and gas for contrast-enhanced ultrasonography. The macromolecule microcapsule of the invention has various functions and abroad application field in art of medicine, biochemistry and the like.

The invention belongs to the technical field of medical instruments and relates to a detecting system for a near-infared body surface blood vessel detector. The detecting system comprises a digital photography device and a moving projection device. The digital photography device and the moving projection device are in mutual connection and data transmission through a bus control unit, a near-infared lens is installed on the digital photography device and comprises a near-infared filter, and the near-infared filter blocks visible light, lets near-infared light pass and is a bandpass filter. The detecting system for the near-infared body surface blood vessel detector can help professional medical workers to observe body surface blood vessels of a patient, can display blood information such as flow velocity and flow direction at the part in real time, and has a certain curing promoting effect on body surface wound healing and thrombus ablation of superficial layer veins. In clinical application, the detecting system provides great convenience for the medical workers and is of revolutionary significance. The detecting system has good application prospect in the technical field of medical instruments.

The invention discloses a rearview mirror. The rearview mirror comprises a lens, wherein the lens which is divided into a view-finder area and a non-view-finder area comprises a glass plate and a coating layer covering the glass plate, and the coating layer is used for adjusting the reflection rate of the lens; the back surface, corresponding to the view-finder area, of the glass plate is sequentially provided with a touch sensing layer, a display screen assembly and a backlight assembly in a layering manner. The view-finder area of the rearview mirror can be used as a touch display screen, so that the rearview mirror not only has a rearview function, but also has a touch display function, and the weakness that the function is single in a traditional rearview mirror can be overcome.

The invention discloses a deformable baby carriage, which comprises a handle bar, a pedal transmission mechanism, two parallel fixed wheels, a movable wheel and a baby seat, wherein the handle bar is connected with a frame; the backward-forward position of the movable wheel can be changed; the frame consists of a front frame 10 and foldable transition lever 31 and rear lever 32; a fixed position deformable locking device is fixed on the front frame 10; the transition lever 31 is hinged with the front frame 10 through the fixed position deformable locking device; a foldable locking device is arranged between the transition lever 31 and the rear lever 32; the baby seat is arranged on an extension part of the front frame; and the rear lever 32 is provided with a seat fixing device for clamping a seat stand rod 5. After simple change, the baby carriage can be conveniently changed into a pushing baby carriage and a riding baby carriage, so that the travel range of a user is expanded, and the interestingness and the convenience for traveling with a baby are increased.

The invention discloses a positioning, deviation correcting and theft judging method of an intelligent iron shoe. The positioning, deviation correcting and theft judging method comprises four steps ofsystem initialization, intelligent iron shoe theft judgment, intelligent iron shoe static positioning anti-drift treatment and intelligent iron shoe static positioning deviation correcting. Accordingto the intelligent iron shoe theft judgment algorithm, the intelligent iron shoe theft identification precision is improved layer by layer, the intelligent iron shoe theft state is judged quickly andaccurately, and the calculation amount of the intelligent iron shoe during theft judgment can be effectively reduced, so that the purpose of reducing energy consumption is achieved; the intelligent iron shoe static deviation correction algorithm maps the intelligent iron shoe positioning coordinates to the tracks on which the intelligent iron shoe is placed, so that the influence of GPS positioning errors on intelligent iron shoe state display is reduced. The positioning, deviation correcting and theft judging method of the intelligent iron shoe is suitable for judging the theft state of a railway station and correcting the deviation of the positioning information of the railway station after the intelligent iron shoe is applied to the railway station, which greatly improves the safety ofthe station and relieves the management pressure of personnel in the station.

The invention discloses a portable forklift which comprises a bottom frame provided with two front wheels and two universal rear wheels. A portal vertical frame is welded on a bottom beam on the two front wheels, a fork vertical lifting mechanism comprising an upward push sprocket, a vertical frame roller, an upper hydraulic cylinder, a lower hydraulic cylinder, a hydraulic cylinder fixing rod, afork sliding plate, a downward pressing frame, a downward pressing sprocket, two right-angle forks, an upward push chain and a downward pressing chain is mounted on the portal vertical frame, and a bidirectional hydraulic power unit, a storage battery and an electric control box are mounted on a base on the two universal rear wheels. The shortcoming of single function of an existing small forkliftis overcome, the portal vertical frame retracts into a carriage by the aid of the downward pressing frame and the downward pressing sprocket particularly when the right-angle forks of the forklift rise and move cargoes to be carried into the carriage, the cargoes to be carried can be placed into proper positions in the carriage, the portable forklift is taken away along with a freight vehicle, the cargoes are more conveniently loaded and unloaded when in unloaded, and safety coefficient is greatly improved.

The invention relates a device and a method for optimizing electric energy quality of a photovoltaic poverty-alleviation rural power grid based on cooperative self-government. According to the device and the method, the problems that conventional electric energy quality processing devices are relatively single and do not have ideal treatment effect in rural power grids of existing photovoltaic poverty-alleviation projects can be solved. The device comprises electric energy quality coordinating controllers and a single-phase electric energy quality processing device, wherein electric energy quality coordinating controllers are connected to phases A, B and C of a total inlet wire position of a low-voltage area network of rural power grid and are used for detecting electric energy quality information and sending electric energy quality information to a control circuit of the single-phase electric energy quality processing device; and single-phase electric energy quality processing device comprises an inverter circuit and control circuit, an energy storage device is connected to a direct current side of the inverter circuit, an alternate current side of inverter circuit and control circuit are connected with a phase line and a null line in the phases A, B and C, and control circuit is used for detecting electric energy quality information of an access point, simultaneously receiving energy quality information of electric energy quality coordinating controllers and controlling an IGBT (Insulated Gate Bipolar Translator) switch device to output current. According to the device and method, electric energy quality operation level of low-voltage area network is remarkably improved, operation efficiency and economy of a power distribution network are improved, and meanwhile, electric energy quality construction and transformation costs of low-voltage area network are lowered; and device and method are generally applicable to vast rural power networks.

The invention relates to a tester for testing the fuel economical efficiency of a light-weight automobile. Aiming at the problem that an automobile can be only tested on a simulation chassis rotary drum dynamometer because the existing fuel measurer can only measure transient fuel consumption or kilometer fuel consumption, so that the economical efficiency of an actual automobile cannot be testedon a road according to a rule, the invention provides a tester for testing the fuel economical efficiency of the light-weight automobile. The tester mainly comprises a fuel consumption meter, a singlechip, an interface chip, a control panel, a display, an automobile speed sensor, a main flow sensor, an auxiliary flow sensor, forwarding gear sensors, an analog / digital (A / D) converter, a circuit and the like. Fuel consumption can be tested according to a road spectrum diagram of a circulation working condition prestored into the singlechip or a requirement of a constant-speed working condition,so that a real road condition and an actual automobile condition can be reflected, and the current transient fuel consumption, the kilometer fuel consumption and the total stored fuel consumption canbe displayed and output; data cannot be lost in a state of power failure, and the data can be put off and accumulated in a state of power on; and the tester is convenient to mount, safe and reliable,and on-automobile test is convenient.

The invention discloses a film-type wall water pipe boiler inspection door structure which comprises an embedded part which is fixedly arranged on a service port surrounding film-type wall, wherein a door seat plate is fixedly arranged on the embedded part, and a packaging cover plate is fixedly arranged on the outside of the door seat plate; an inner test port and an outer test port, an inner fire-observing port and an outer fire-observing port as well as an inner manhole and an outer manhole are respectively arranged on the door seat plate and the packaging cover plate in one-to-one correspondence; an inner fire-observing port cover plate is arranged on the inner fire-observing port, and the inner fire-observing port cover plate is articulated with the door seat plate; an openable manhole cover plate is arranged on the inner manhole, and test sensors are install in the inner test port and the outer test port; and an outer fire-observing cover plate is arranged on the outer fire-observing port, an openable outer manhole cover plate which is installed on the packaging cover plate is arranged on the outer manhole, and a driving device is arranged between the packaging cover plate and the inner fire-observing port cover plate. The film-type wall water pipe boiler inspection door structure provided by the invention has the advantages of simple structure, good heat insulation and heat preservation, comprehensive function and suitability for being applied to all film-type wall water pipe boilers.

The invention provides a series of cosmetics containing a pleurotus citrinopileatus extracting solution and a preparation method thereof. The cosmetics comprise toner, emulsion and cream containing the pleurotus citrinopileatus extracting solution. The pleurotus citrinopileatus extracting solution is used as a functional ingredient and added to a cosmetic formula for the first time to fill the blank of pleurotus citrinopileatus in the field of cosmetics application, and the series of new edible mushroom type cosmetics are developed. The pleurotus citrinopileatus extracting solution is rich invarious small molecule functional ingredients such as erythrothioneine, polysaccharide, amino acid, flavonoid and polyphenol. These substances can effectively infiltrate into skin cells to be fully absorbed and utilized by the cells to achieve physiological functions of nourishing the skin, removing free radicals and inhibiting tyrosinase. The series of cosmetics containing the pleurotus citrinopileatus extracting solution can overcome the shortcomings of the single product effect of most products on the market, and have the effects of resisting aging, whitening skin and moisturizing the skin.

The invention provides a novel small and micro displacement fracturing vehicle, which comprises a chassis vehicle and a sub beam, wherein the sub beam is connected with the chassis vehicle through a pull plate; an engine and a gearbox are arranged on the sub beam through screw bolts; the gearbox is arranged at the output end of the engine; the top, positioned at one side of the gearbox, of the subbeam is provided with a hydraulic system through a screw bolt; a first pump base is welded at the top, positioned at one side of the hydraulic system, of the sub beam; a fracturing pump is arranged on the first pump base; the gearbox and the fracturing pump are connected through a transmission shaft; a metering tank is welded at the top, positioned at one side of the fracturing p ump, of the subbeam; a second pump base is welded at the top, positioned at one side of the metering tank, of the sub beam; a small-size high-pressure injection pump is arranged on the second pump base through a screw bolt. The novel small and micro displacement fracturing vehicle has the advantages that the design is reasonable; the equipment is highly integrated; the functions are various; the equipment buyingand maintenance cost can be effectively reduced.

The invention relates to a compound nonspecific immune preparation to breed German mirror carp. The invention is characterized in that the preparation is made with the following effective powder ingeridents based on weight proportion; 0.15-0.25kg Beta- hyskon, 0.8-0.9kg rhubarb, 0.33-0.43kg radix scutellariae, 0.52-0.62kg phellodendron and 0.45-0.55kg vitamin C organic phosphate. The preparation method includes the following steps: (1)add compound nonspecific immune preparation to German mirror carp feedstuff on the ratio of 1:200 and stir the mixture, then make the mixture into feedstuff granules with common preparation method; (2) put one-period(7 days) amount of compound feedstuff every 10 or 14 days with a daily dosage the same with common feedstuff during the breeding course until the carps grow into marketable carps. But in disease season, namely the period between middle July and middle August, compound feedstuff is fed every day. The invention is scientific in preparation and simple in method and operation, and can remarkably improve nonspecific immunity and anti-stress capacity, thus improving the disease prevention capability of the carps and the breeding results.

The invention belongs to the field of biotechnology and relates to a deep processing method of elaeagnus pungens fruit. According to the invention, elaeagnus pungens fruit is processed to obtain elaeagnus pungens wine, which has faint scent of fruit and mellow aroma of wine. By the deep processing method, nutrients and bioactive substances are increased, resistance can be enhanced, blood glucose is reduced, highly processed products of elaeagnus pungens are enriched, economic income is raised for peasant household, and customers' demand is satisfied.

The invention relates to a truck-mounted self-loading and self-unloading forklift with a weighing function. The truck-mounted self-loading and self-unloading forklift with the weighing function comprises a forklift chassis, a pushing handle, a down pressing chain, a first control box, a two-way hydraulic power unit, a pallet fork mechanism, a driving assisting mechanism and a lifting mechanism, afirst frame mechanism and a second frame mechanism are arranged at one end of the forklift chassis, rear foot universal wheels and the pushing handle are arranged at the rear end of the forklift chassis, the pushing handle is arranged at the lower end of the forklift chassis, one end of the pushing handle is rotationally connected with the lower end of the forklift chassis, a bottomless square seat is arranged at the lower end of the forklift chassis, a movable supporting leg telescopic mechanism is arranged in the bottomless square seat, the first control box is arranged at the top end of thesecond frame mechanism, the two-way hydraulic power unit is arranged in the first control box, the lifting mechanism is arranged on the second frame mechanism, and the lifting mechanism is connectedwith the pallet fork mechanism and the driving assisting mechanism. The truck-mounted self-loading and self-unloading forklift with the weighing function has the beneficial effects that after the forklift lifts up and loads a carried object, the whole forklift can be retracted to the height of a carriage, enters the carriage and carries the goods in the carriage.

The invention relates to ionic liquid extraction resin capable of realizing high-efficiency recycling of rare earth as well as preparation and an application method of the ionic liquid extraction resin. The ionic liquid extraction resin has a designable zwitterion structural characteristic; the physical and chemical property of the ionic liquid extraction resin can be regulated and controlled by changing the structure or the type of zwitterions, so that the problems of the conventional extraction resin has a single function and the conventional extraction agent is low in stability are solved; and the ionic liquid extraction resin can be used for recycling and separation of rare earth in a solution. According to the preparation method of the ionic liquid extraction resin, syrene anion exchange resin is used as a carrier material, and an acidic phosphine extraction agent is introduced into a syrene-divinylbenzene framework under the action of a non-covalent bond, so that the ionic liquid extraction resin modified by the acidic phosphine extraction agent is obtained. The ionic liquid extraction resin provided by the invention can effectively recycle rare earth ions, is high in adsorption rate and adsorption selectivity to the rare earth ions and can be used for the separation and the recycling of the rare earth in a complicated system.

The invention discloses a film-type wall water pipe boiler inspection door structure which comprises an embedded part which is fixedly arranged on a service port surrounding film-type wall, wherein a door seat plate is fixedly arranged on the embedded part, and a packaging cover plate is fixedly arranged on the outside of the door seat plate; an inner test port and an outer test port, an inner fire-observing port and an outer fire-observing port as well as an inner manhole and an outer manhole are respectively arranged on the door seat plate and the packaging cover plate in one-to-one correspondence; an inner fire-observing port cover plate is arranged on the inner fire-observing port, and the inner fire-observing port cover plate is articulated with the door seat plate; an openable manhole cover plate is arranged on the inner manhole, and test sensors are install in the inner test port and the outer test port; and an outer fire-observing cover plate is arranged on the outer fire-observing port, an openable outer manhole cover plate which is installed on the packaging cover plate is arranged on the outer manhole, and a driving device is arranged between the packaging cover plate and the inner fire-observing port cover plate. The film-type wall water pipe boiler inspection door structure provided by the invention has the advantages of simple structure, good heat insulation and heat preservation, comprehensive function and suitability for being applied to all film-type wall water pipe boilers.

The invention discloses a small agricultural cultivator. The small agricultural cultivator comprises a frame, wherein a motor shaft rotationally connected with the bottom wall of a power cavity is connected into a motor, a third bevel gear is fixed on the upper side of the motor shaft, a rotating slide block is rotationally connected with the middle side of the motor shaft, the lower side of the motor shaft extends downwards to penetrate the bottom wall of the power cavity and enter a driving cavity, water is firstly fed into a water tank through a water feeding port, to-be-cultivated seeds are added to a seed tank, and the motor is started to drive the motor shaft to rotate. The device has the advantages of being small in size, multifunctional, capable of being operated by a single personand the like, the problem that large machinery cannot work due to small cultivation area in China is solved, and the cultivator can perform sowing and watering during cultivation, can realize turningby one rotating wheel and the other non-rotating wheel and has the advantage of small turning radius.

The present invention relates to an intelligent composite material applicable to civil engineering. It is composed of sheet-layer cement base material and sheet piezoelectric ceramic material which are alternatively arranged. The piezoelectric ceramic sheets are connected in parallel mode by means of signal wire, and the polarization directions of adjacent two piezoelectric ceramic sheets are opposite. The preparation method of said composite material is convenient, its cost is low, its structure compatibility is good, response speed is quick, antijamming power is strong and it has the characteristics of sensing function and driving function multiplex.

Provided is an FM flashlight. According to the FM flashlight, a rechargeable battery of the flashlight can supply power for not only an FM radio but also a bulb for lighting. The FM flashlight comprises a flashlight outer shell, the rechargeable battery, the FM radio module, the bulb and a switch. The FM radio module is embedded into the flashlight outer shell, and the bulb and the FM radio module are connected to the battery in parallel.

The invention discloses a chicken essence seasoning special for a hotpot condiment. The chicken essence seasoning is prepared from the following raw materials in parts by weight: 20-30 parts of sunflower seedlings, 30-35 parts of mushrooms, 10-15 parts of sea sedge, 12-15 parts of Chinese toon, 45-65 parts of dried small shrimps, 3-5 parts of garlic, 20-25 parts of watermelon juice, 3-4 parts of lemon juice, 3-5 parts of green tea, 10-12 parts of fructus jujubae, 5-8 parts of edible salt, 1-1.5 parts of spices, and 13-25 parts of chicken. The chicken essence seasoning special for the hotpot condiment and made by adopting the sunflower seedlings, the mushrooms, the sea sedge, the Chinese toon and the dried small shrimps as the main raw materials to substitute sodium glutamate in a traditional chicken essence seasoning to promote the taste of dishes, and being matched with the chicken has rich nutrients, tastes good, and can sufficiently meet needs of customers.

The invention belongs to the technical field of hat and coat stands, and particularly relates to a multifunctional hat and coat stand which is characterized in that a hat and coat stand body, a lighting component, a mosquito repelling component and a humidifying component form a whole, a lower column body is arranged on a base, a middle column body is arranged on the lower column body, and an upper column body is arranged on the middle column body; at least one hook is arranged on the upper column body; and the humidifying component comprises an air supply assembly, a humidifying assembly, a temperature sensing element and a temperature and humidity sensor. A controller is arranged in the base, the humidifying component is arranged above the upper column body, the air supply assembly is installed on the middle column body, the temperature sensing element is arranged at an air outlet of the humidifying component, and the temperature and humidity sensor is arranged on the upper end faceof the base. The multifunctional hat and coat stand is provided with the humidifying component, the lighting component and the mosquito repelling component, so that the multifunctional hat and coat stand has multiple functions, and the defect that an original hat and coat stand is single in function is overcome.

A tea for moistening throat and clearing lung is proportionally prepared from fig fruit and leaf, Momordica grosvenori, boat sterculia seed and chrysanthemum flower.

The invention belongs to the field of biotechnology, and relates to a health drink containing saffron seeds, which is prepared from the following raw materials in the following weight ratio: 55 parts of scalloped seeds, 3 parts of compound fermentation bacteria, 1 part of vitamin C, citric acid 6 parts, xylitol 6 parts, mixed enzyme 2 parts, plant extract 4 parts. The drink has the fragrance of fruit and the mellow aroma of wine, the fragrance is harmonious, it increases nutrients and biologically active substances, can enhance resistance, lower blood sugar, enrich the deep-processed products of pelagics, improve the economic income of farmers, and has broad potential. application prospects.

The invention discloses a lifting clothes hanger, which comprises a support, a pair of guiding devices arranged on the support, a pair of telescopic brackets, and a moving device. Each telescopic bracket comprises a plurality of unfolding components which are in pivot joint; each unfolding component is provided with a first arm and a second arm which are in pivot joint; the left end of the first arm of each unfolding component at the rear end is pivoted on a boss of the support; the left end of the second arm of each unfolding component at the rear end is movably arranged in each guiding device; the moving device comprises a screw rod, a nut, a guiding rod and a drive rod; the screw rod is movably arranged on a bearing plate of the support; the guiding rod is fixedly arranged on the bearing plate and is parallel to the screw rod; the nut is sleeved on the screw rod and can move along the guiding rod; the drive rod is movably arranged on the nut and is movably connected onto a clothesline pole of each unfolding component at the front end. The lifting clothes hanger provided by the invention overcomes the defect that an existing lifting clothes hanger only has a single function of lifting or telescoping, and is wide in application range.

The invention discloses an environment-friendly mattress capable of promoting blood circulation. The environment-friendly mattress comprises a sponge mattress body and a mattress cover, wherein the sponge mattress body is prepared from the following materials by weight: 80kg of polypropylene glycol (PPG) (epoxy propane condensation compound), 13kg of polyether polyol (POP), 37.5kg of toluene diisocynate (TDI), 6kg H2O, 0.38kg of methene dichloromethane (MC), 0.18kg of T9 (stannous octoate), 1.13kg of silicone oil (triethylene diamine) and 2.82kg of far infrared powder. The preparation method comprises the following steps of: adding the far infrared powder to PPG, stirring fully and cooling to 24.5 DEG C; adding H2O, MC, T9 and silicone oil; stirring at high speed to foam the mixture, and simultaneously adding POP and TDI which are circularly cooled to 23 DEG C in advance by controlling the flow with a computer; and sizing, cutting and covering the mattress body with the mattress cover. According to the invention, the far infrared powder which has normal emissivity and is the most suitable for a human body is blended into the mattress to promote blood circulation and metabolism, thus the sleep quality of insomniac is greatly improved.

The invention discloses a terahertz wave polarization conversion and unidirectional transmission device with a double-layer participating medium-metal grating structure. The device comprises a metal grating layer, a medium substrate layer and a medium grating layer, wherein the metal grating layer and the medium grating layer are respectively positioned on two sides of the medium substrate layer; the medium grating layer is etched by a substrate material; an included angle between ridge orientation of medium grating and ridge orientation of metal grating is 45 degrees; the metal grating and the medium grating are sub-wavelength gratings; and the grating periods of the sub-wavelength gratings are smaller than the wavelength incident light. By the polarizing character of the metal grating layer and the artificial double refraction character of the medium grating layer, polarization conversion rate greater than 95% can be realized, and unidirectional transmission isolation greater than 30 db can also be realized. Due to the mode coupling effect between the metal grating layer and the medium grating layer, compared with a discrete component, the device has the characteristic that the emergent light transmissivity and working bandwidth are remarkably improved. The device is suitable for polarization conversion and unidirectional transmission of terahertz waves.

The invention discloses a fully distributed optical fiber strain and vibration sensor comprising a laser (1), a first coupler (2), a pulse modulation module (3), an optical amplifier (4), a circulator (5), a sensing optical fiber (6), a fiber bragg grating (7), a polarization scrambler, a second coupler, a balance photoelectric detector, an analyzer, a photoelectric detector (12) and a signal processing unit. Continuous light output by the laser (1) is split into two paths through the first coupler (2), wherein one path is used as reference light and is accessed to a first input end of the second coupler (9) through the polarization scrambler (8); and the second path is processed by the pulse modulation module (3) and the optical amplifier (4) and then used as detection pulse light to be injected into a first port of the circulator (5). In the invention, Brillouin optical time domain reflectometry (BOTDR) and polarization optical time domain reflectometry (POTDR) are simultaneously utilized for respectively and correspondingly carrying out fully distributed measurement on strain and vibration on a signal optical fiber, the defects of a system with single BOTDR or POTDR are overcome, and the false alarm rate or missed report rate of the system is decreased.

The invention belongs to the technical field of household appliances, and particularly provides a household flashlight. The household flashlight comprises a shell, a switch arranged on a side wall of the shell, and a rear ring arranged on one side of the rear of the shell, wherein the outer wall of the shell is provided with a luminous ring and a compass dial plate; and the rear ring is connected with a whistle by a wire. In the case of an emergency power off, a handheld part of the flashlight is provided with the luminous ring for emitting light, so that a user can easily find the flashlight; and if the user needs urgent help, the whistle on the flashlight can be whistled to send a distress signal to external personnel. The household flashlight overcomes a shortcoming of single function of the traditional flashlight.