1718 results about "Incubator" patented technology

The invention relates to the technical field of microbial culture, and provides a culture device for agricultural microbial agent production and a use method, the culture device comprises a culture box, and the top of the culture box is hermetically and detachably provided with a box cover. According to the device, the air pump is controlled by the controller to be started, so that the air pressure in the closed space is increased, the air passes through the non-woven fabric and the polymer microporous membrane, more tiny bubbles can be generated under the action of the polymer microporous membrane, a nutrient solution flows and is mixed, and the stirring effect on the nutrient solution is achieved; a nutrient solution in the incubator flows into the culture dish through the liquid discharge pipe, so that the stirring of the nutrient solution and the injection of the nutrient solution into the culture dish to be mixed with a microbial inoculum can be completed without using more structural components, the operation is simple, and the condition of pollution caused by improper cleaning is avoided; therefore, the subsequent microbial agent culture effect is improved.

The invention discloses an intelligent control method and system for a constant-temperature incubator based on deep learning. The method comprises the following steps: acquiring an equipment state vector in real time; analyzing the equipment state vector by using an improved model, and predicting an environmental parameter demand trend in a culture process to obtain a prediction result; modeling a control strategy into an MDP Markov decision process through a DRL deep reinforcement learning framework according to the prediction result, and dynamically optimizing power distribution of a heater, a refrigerator, a humidifier and a fan by taking minimization of energy consumption and temperature fluctuation as objective functions to obtain an initial control strategy; and adjusting the power of the actuator according to the initial control strategy by using a fuzzy PID algorithm, monitoring sensor data in real time through an isolated forest model, and adjusting the initial control strategy when abnormality is detected to obtain a target control strategy. The environment demand change is pre-judged in advance, and the hysteresis problem of traditional control is solved.

The invention discloses laboratory centralized full-automatic analysis five-day biochemical oxygen demand monitoring equipment, which relates to the technical field of five-day biochemical oxygen demand monitoring equipment, and comprises a laboratory centralized full-automatic analysis system, a sample temporary storage incubator, an incubator, a sample transport vehicle and a pretreatment system, the pretreatment system is arranged at the side part of the laboratory centralized full-automatic analysis system. According to the laboratory centralized full-automatic analysis five-day biochemical oxygen demand monitoring equipment, the sample temporary storage constant temperature box, the culture box, the sample transport vehicle, the pretreatment system and other structures are arranged, so that the defect of a laboratory centralized full-automatic analysis system in the aspect of five-day biochemical oxygen demand monitoring is overcome, and the overall automation level of a laboratory is improved; tedious consumable preparation of a laboratory is simplified, operation of experimenters can be greatly simplified, personal errors in the experiment process are reduced, and result accuracy is guaranteed.

The utility model provides a livestock cub incubator which comprises a fan-shaped incubator body, a fixing sleeve, an excrement scraper and a liquid passing hose, two heat preservation lamps are installed at the upper end of the interior of the fan-shaped incubator body, and a positive and negative rotation motor is installed on the left front side of the upper end of the fan-shaped incubator body. A rotating shaft is longitudinally installed on the left front side of the interior of the fan-shaped heat preservation box body through a bearing, the lower end of the exterior of the rotating shaft is fixedly sleeved with a fixing sleeve, a swing plate is longitudinally fixed to the rear end of the fixing sleeve, a plurality of rubber push blocks are installed at the right end of the swing plate, and a lateral groove is formed in the left end of the swing plate. In order to solve the problem that when excrement of a cub is cleaned regularly, a livestock worker needs to move the cub out of a heat preservation box firstly and then manually clean the excrement of the cub, which is relatively inconvenient, the utility model designs a novel swing type scraper structure, and the excrement of the cub can be automatically scraped out; the cubs can be pushed out of the device in advance in the swinging process to be disinfected.

The invention discloses a cell culture box convenient for taking and placing cell culture dishes, and relates to the technical field of cell culture, the cell culture box comprises a box body, the inner wall of the box body is fixedly connected with a plurality of placing plates, and the side walls of the top ends of the plurality of placing plates are provided with a plurality of first grooves. The inclination angle of the second clamping plate is the same as that of the outer wall of the corresponding cover plate, so that the cover plate is screwed above the cell culture dish by utilizing the second clamping plate, the primary installation between the cell culture dish and the cover plate is completed, and then a buckle on the outer side of the cover plate can be pressed into a clamping groove in the outer wall of the cell culture dish through a clamping block; when the cell culture dish needs to be taken out, a buckle is pulled out of a clamping groove in the outer wall of the cell culture dish by utilizing a pulling plate, and then the cover plate is taken down from the cell culture dish by utilizing a second clamping plate, so that the culture efficiency and reliability during cell culture are greatly improved.

The utility model relates to the technical field of mineralizing bacteria equipment, in particular to an oil reservoir CO2 mineralizing bacteria activity continuous monitoring device which comprises an incubator filled with a culture medium for culturing mineralizing bacteria. The air outlet end of the air supply assembly is located on the lower side in the incubator; the carbon dioxide concentration monitoring assembly is mounted at the upper end part of the incubator; the strain concentration monitoring assembly is mounted on the side wall of the incubator and is communicated with the incubator; the control assembly is electrically connected with the air supply assembly, the carbon dioxide concentration monitoring assembly and the strain concentration monitoring assembly. The activity of mineralized bacteria can be rapidly and continuously monitored, and the monitoring efficiency is improved.

The utility model relates to the technical field of microorganism barrier tests, and provides a microorganism barrier dry test device which comprises a dry test bottle and an incubator, the incubator comprises a box body, the box body is provided with a containing space, and the containing space is used for containing the dry test bottle; the box cover is rotationally arranged on the box body, and the containing space is opened or closed after the box cover rotates; the partition plate is arranged in the containing space, the partition plate is used for dividing the containing space into a first space and a second space which are not connected with each other, and the first space and the second space are both provided with temperature control devices and are both used for containing dry test bottles. By means of the technical scheme, the problems that in the prior art, in the temperature adjusting process, the culture environment deviates from the optimal state, test flora is possibly affected, and then the test result is affected are solved.

The utility model discloses an artificial breeding device for light red ink head fish, which belongs to the technical field of aquatic product hatching and fry breeding and comprises a spawning induction pond, a hatching pond and a fry collecting pond. Cobblestones are laid at the bottom of the spawning induction pond, a spraying mechanism is fixedly connected to the top of the spawning induction pond, an ovulation pipe is communicated with the center of the spawning induction pond, the top of the ovulation pipe is lower than the top face of the spawning induction pond, and the bottom end of the ovulation pipe penetrates through the spawning induction pond to be communicated with the hatching pond; a filtering mechanism is detachably connected to the middle of the hatching pond, an overflow pipe is arranged in the filtering mechanism, and the bottom of the overflow pipe penetrates through the hatching pond to communicate with the outside; the side wall of the bottom of the hatching pond is communicated with a seedling outlet pipe, and the seedling outlet pipe is fixedly connected with a control valve and communicated with the seedling collecting pond. The device can effectively simulate the natural breeding environment of the light red ink head fish, accurately control various key parameters in the breeding process, and improve the reproductive performance of parent fish, the hatching rate of fish eggs and the survival rate of fish fries.

The invention relates to the technical field of patient management, and discloses a patient management method and system based on incubator traceability, and the method comprises the steps of information binding, data storage, expiration reminding and data verification. The system corresponds to the method. According to the application, the scanning device is utilized to realize accurate association of the incubator code and the patient identifier, and in combination with matching verification of the incubator function and the diagnosis and treatment stage, mistakes and omissions of manual binding are effectively avoided; equipment information, patient information and cleaning records are stored through an incubator database, multi-dimensional historical tracing query is supported, and full-life-cycle transparent management of an incubator use track and a cleaning process is achieved; a diagnosis and treatment association verification model is constructed, the accuracy of diagnosis and treatment data of a patient is intelligently verified based on multi-rule cross comparison such as spatial position, time logic and state change, and meanwhile, the early discovery capability of equipment abnormality and data contradiction is improved based on real-time monitoring of environmental parameters and linkage verification of physical sign data.

The utility model relates to the technical field of seed cultivation devices, and discloses a seed cultivation device for biological breeding, which comprises a constant-temperature incubator body, a first fixing shaft is rotatably connected to the inner side of the constant-temperature incubator body, a support frame is fixedly connected to one end of the first fixing shaft, a connecting frame is fixedly connected to the top of the support frame, and the connecting frame is fixedly connected to the bottom of the constant-temperature incubator body. A second fixing shaft is rotationally connected to the side wall of the connecting frame, a placement tray is fixedly connected to the outer side of the second fixing shaft, and a groove is formed in one side of the constant-temperature incubator body. The seed cultivation device for biological breeding solves the problems that when an existing seed cultivation device is used, seed cultivation pots are generally placed on a horizontal supporting plate, and the specific growth condition of each seed cultivation pot is difficult to see clearly through the horizontally-placed supporting plate when the number of the seed cultivation pots is large; and a user is difficult to control the breeding condition of the seeds in the culture pot.

The invention provides slide specimen dyeing equipment which comprises a cabinet, an incubation box and an inclination mechanism, the incubation box comprises a pot body, at least one incubation assembly can be arranged in the pot body, each incubation assembly comprises a support, a cover plate and a slide, and the cover plate and the slide are matched and obliquely arranged on the support; the inclination mechanism is arranged on the cabinet, is in driving connection with the incubator and can drive the incubator to swing downwards, so that the inclination angles of the cover plate and the slide glass relative to the horizontal plane are reduced. Therefore, in the incubation process, the situation that the reagent between the cover plate and the slide glass is lost from the bottom of the gap due to the fact that the inclination angle between the cover plate and the slide glass is too large can be avoided, the reagent dosage can be saved, the reagent does not need to be added repeatedly, and the detection efficiency is improved.

The utility model relates to the technical field of vegetable seed germination accelerating, and discloses a vegetable seed germination accelerating device which comprises a germination accelerating heat preservation box, a heat preservation door is installed on the germination accelerating heat preservation box, a bearing frame is installed in the germination accelerating heat preservation box, and a bearing net plate is placed on the bearing frame. According to the vegetable seed germination accelerating device, by arranging the bearing frame, the bearing net plate, the first gauze layer, the driving assembly, the mounting plate, the covering net plate and the second gauze layer, seeds to be soaked only need to be scattered on the first gauze layer, the driving assembly drives the mounting plate to move, the mounting plate drives the covering net plate to move, and the covering net plate drives the second gauze layer to move; when the first gauze layer is covered with the second gauze layer, seed coating and seed germination accelerating are completed, and when the seed germination accelerating condition needs to be checked, the mounting plate is driven to drive the covering net plate to ascend, the second gauze layer can be opened for checking, seeds do not need to be moved, germinated seeds are prevented from being damaged, and checking is convenient.

The invention relates to the technical field of culture devices, and discloses a fan regulation and control method for an incubator, which comprises the following steps: acquiring a temperature rise stage and an inner chamber temperature of the incubator and an environment temperature of an environment where the incubator is located; under the condition that the inner chamber temperature does not meet the first inner chamber temperature condition, according to the temperature rising stage of the incubator, a circulating fan is controlled to operate according to the temperature rising air speed; and after the inner chamber temperature meets the first inner chamber temperature condition, the temperature rising air speed of the circulating fan is adjusted according to the environment temperature. According to the method, the problem of back drop after temperature overshoot after the incubator is heated for the first time can be solved, the temperature fluctuation range of the temperature in the inner chamber is controlled, and the culture effect of cells / tissues in the incubator is improved. The invention further discloses a fan regulation and control device for the incubator, the incubator and a storage medium.

The invention belongs to the technical field of medical apparatus and instruments, and discloses a mechanical intelligence-based incubator closed blue light irradiation data management system, which comprises a state cluster data module for collecting multi-source heterogeneous data, correcting clock skew between an incubator and a preset biosensor through a space-time alignment protocol, and sending the corrected clock skew to a server; dynamically adjusting the sampling rate of the multi-source heterogeneous data based on the infant physiological data in the multi-source heterogeneous data after time alignment, and outputting a state cluster data packet with a timestamp; the layered extraction module is used for constructing a three-level feature processing assembly line based on the state cluster data packet, and comprises a base layer for calculating a base statistical magnitude through a sliding window; the logic layer generates a temperature and light effect index and a sealing safety coefficient according to the basic statistics and in combination with the multi-source heterogeneous data; the decision-making layer establishes a treatment efficiency prediction matrix based on a temperature-light effect index and a sealing safety coefficient, and predicts a correlation trend of blue light irradiation and bilirubin metabolism; the safety and the curative effect stability of infant treatment are improved.

Disclosed herein is an instrument and associated methods for a fully automated bench-top NULISA platform, comprising an X-Y-Z-gantry, a microtiter plate stage, an incubator, a quantitative PCR module, a decontamination cleaner for microtiter plates, a microtiter plate sealer, a magnetic probe and comb assembly for sample mixing and magnetic bead extraction, a storage unit for reagents and supplies, and a controller.

Disclosed herein is an instrument and associated methods for a fully automated bench-top NULISA platform, comprising an X-Y-Z-gantry, a microtiter plate stage, an incubator, a quantitative PCR module, a decontamination cleaner for microtiter plates, a microtiter plate sealer, a magnetic probe and comb assembly for sample mixing and magnetic bead extraction, a storage unit for reagents and supplies, and a controller.

The invention provides a microorganism streak culture and result scanning device, and solves the problems of low automation degree, scattered device layout and unsmooth connection of all mechanisms of the existing microorganism treatment device. Comprising a workbench, a pretreatment system and a culture box are sequentially arranged on the surface of the workbench, and a culture frame is arranged in the culture box; a first turnover mechanism and a conveying mechanism are sequentially arranged between the pretreatment system and the culture frame, the first turnover mechanism clamps the culture dishes to turn over horizontally and conveys the culture dishes to the conveying mechanism, and the conveying mechanism conveys the culture dishes to the position below the culture frame; a pushing mechanism is arranged below the culture frame, and the pushing mechanism pushes the culture dishes into the culture frame; a taking-out and carrying mechanism and a scanning and storing system are sequentially arranged on the adjacent side of the incubator, and the taking-out and carrying mechanism takes out the culture dishes in the culture shelf and carries the culture dishes into the scanning and storing system; the scanning storage system comprises an active uncovering mechanism and a photographing and scanning mechanism, and the photographing and scanning mechanism is matched with the active uncovering mechanism to photograph and scan the interior of the culture dish.

The invention discloses an akabane virus inactivated vaccine preparation method, which comprises: carrying out Vero cell passage in a cell bottle, taking well growing cells until the cells grow to 80-90%, adding into a DMEM culture medium containing 10% of fetal calf serum, taking out the cells growing to 80-90% and having a good state, adding akabane virus CH-JL-01-2022 according to a volume ratio of 0.1%, and carrying out culture at a temperature of 80-90 DEG C so as to obtain the akabane virus inactivated vaccine. Culturing for 2-3 days in an incubator with the temperature of 37 DEG C and 5% CO2; the method comprises the following steps: preparing 0.25 M BEI, 0.1 M BPL and a 40% formaldehyde solution as inactivators, setting five concentration gradients according to the volume ratios of 0.01%, 0.05%, 0.1% and 0.5%, and collecting after 6 hours, 12 hours, 24 hours, 36 hours and 48 hours after adding; the screening of the akabane virus inactivation conditions according to the types, concentrations and inactivation time of inactivators finds that 0.5% formaldehyde shows a complete inactivation effect after inactivation for 36 hours. The inactivated virus liquid is mixed with MONTANIDETM ISA 201, an ImjectI aluminum adjuvant and a manganese adjuvant according to the volume ratio of 1: 1, and then immunization is carried out, and the protection effect of the ImjectI aluminum adjuvant is found to be optimal.

According to the indigenous plant adaptability screening test method simulating the environmental stress condition, the transparent incubator is combined with real-time monitoring equipment such as the high-resolution miniature camera array and the optical fiber sensor, complex laboratory equipment is replaced, and the root system observation problem is solved. The environmental stress condition of a target habitat is accurately simulated, the environmental characteristics of drought, depletion, special soil structure and the like of the high and steep slope are accurately restored by adopting layered matrix and dynamic stress intervention, a systematic evaluation system is established by combining multi-index quantification and a similar analytic hierarchy process, the subjectivity of artificial experience judgment is avoided, and the evaluation accuracy of the high and steep slope is improved. And the scientificity and engineering applicability of indigenous plant screening are remarkably improved.

The invention discloses an effect of OsCPK18 in inhibition of pre-harvest germination of rice. According to the invention, the Zhonghua 11 is taken as the background, and two mutant plants, namely, KO-OsCPK18 # 1 and KO-OsCPK18 # 2, with OsCPK18 gene function defect mutation are obtained through transgenosis; in a seed germination experiment, it is found that seed germination of the OsCPK18 mutant material is delayed, and the final germination rate is not affected; a pre-harvest sprouting simulation experiment is carried out in a high-temperature and high-humidity environment arranged in an incubator, and the pre-harvest sprouting resistance of the OsCPK18 mutant material is found to be remarkably higher than that of a wild type. The results show that the OsCPK18 gene under the background of ZH11 has important significance on crop breeding, the invention provides a method for improving the pre-harvest sprouting resistance of rice, and the cultivation process of a new pre-harvest sprouting resistant rice variety can be accelerated.

The utility model relates to the technical field of water culture, in particular to a plant water culture device capable of adding water regularly, which comprises a culture box and a timing water adding component arranged on one side of the culture box, a plurality of culture components are arranged on the culture box, a fixed frame is pulled towards the direction far away from a first culture frame, the movement of the fixed frame can stretch a spring, and the fixed frame is fixed to the culture box. After the clamping rods are separated from the positions of the clamping holes, the position of the second culture frame can be adjusted, after the clamping rods are adjusted to the proper position, the fixing frame is loosened, the clamping rods enter the clamping holes in the corresponding positions through the pulling force of the springs, and then the position of the second culture frame is adjusted and fixed; the length of the whole culture equipment is increased, the equipment can adapt to different plants, it is ensured that the plants have enough growth space, the situation that the growth of the plants is limited due to insufficient space is avoided, and meanwhile the length of the culture frame can be reduced for small plants or plants in the initial growth stage so that space and resources can be saved.

The utility model relates to the field of incubators, and discloses a meat product production sample detection incubator which comprises an incubator body, an adjuster is fixedly connected to the left side of the front end of the incubator body, an incubator sealing door is rotatably connected to the front end of the incubator body, and a handle is fixedly connected to the right side of the front end of the incubator sealing door. A plurality of guide supporting rails are fixedly connected to the left side and the right side of the inner wall of the incubator body, a culture dish frame is slidably mounted on the incubator body through the guide supporting rails, a plurality of first adjusting rods are rotatably connected to the inner wall of the culture dish frame, and first bevel gears are fixedly connected to the rear ends of the first adjusting rods. According to the detection incubator, a culture dish fixing structure is arranged in the incubator, so that other culture dishes in the detection incubator can be prevented from being knocked off in the taking process, and the situation that cultures are possibly polluted or damaged due to falling of the culture dishes is avoided.

The invention discloses a multi-layer uniform mixing method for microorganism culture, which comprises the following steps: putting: putting microorganisms to be cultured and a culture solution into test tubes, and putting the test tubes into a plurality of culture cavities arranged in a culture box layer by layer in batches; temperature regulation: independently regulating and controlling the temperature in the plurality of culture cavities by a temperature regulation and control mechanism; uniformly mixing: the test tubes revolve and rotate in the incubator, and meanwhile, the test tubes are pushed to oscillate in a small amplitude under the action of an oscillation mechanism, so that the microorganisms and the culture solution are uniformly mixed. The incubator is provided with a plurality of culture cavities, bin doors are hinged to the front sides of the culture cavities, the incubator comprises trays, rotating discs, placement grooves, oscillation blocks and a temperature regulation and control mechanism, the trays are installed in the culture cavities in a sliding mode, the rotating discs are rotatably arranged at the tops of the trays, and the placement grooves rotate while rotating along with revolution of the rotating discs. The invention is used for solving the problem of inaccurate detection result caused by poor mixing effect of the existing mixing device.

This invention discloses a hepatocyte model with silencing or overexpression of LCMT1 and its construction method, comprising: passage and seeding cells in logarithmic growth phase into well plates; diluting plasmid siRNA1 or siRNA2 or an overexpression plasmid to an appropriate concentration, and then mixing it with transfection reagent dilution to obtain a transfection mixture; washing the cells in each well of the plate and adding another culture medium, then gently dripping the transfection mixture into the well plate, shaking well, and culturing in a cell culture incubator for a period of time; replacing the culture medium with complete culture medium without antibiotics to obtain the constructed hepatocyte model with silencing or overexpression of LCMT1. This invention, by constructing a hepatocyte model with silencing or overexpression of LCMT1 in the liver, allows for validation experiments to be conducted to study the development mechanism of liver fibrosis. It is suitable for widespread application in various laboratories and provides an experimental model basis for research on liver fibrosis and drug trials.

1. The name of the design product: egg incubator (16 PRO). 2. The use of the design product: applied to egg incubation. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a test method and a test system for stored particles and a storage medium, the stored particles are placed in an incubator, and the test method comprises the following steps: carrying out heating operation on the incubator; in response to the condition that the current temperature of the storage particles is smaller than a first preset temperature, performing writing and / or erasing operation on the storage particles to enable the storage particles to generate heat; and in response to that the current temperature of the storage particles is greater than or equal to the first preset temperature, performing a high-temperature aging test on the storage particles. According to the scheme, the temperature rise speed of the storage particles is increased by utilizing the heat generated when the storage particles are written and / or erased, so that the temperature of the storage particles is increased to the preset temperature more quickly, the time required for the storage particles to enter a high-temperature aging test is shortened, and the test efficiency is improved.

The invention relates to the technical field of parameter cooperative control, and discloses a multi-parameter cooperative control method and an incubator, and the method comprises the steps: carrying out the disturbance measurement of the heating power and carbon dioxide injection in an incubator body, and calculating a temperature-to-concentration influence coefficient and a concentration-to-temperature influence coefficient; identifying door opening disturbance according to the door state signal jump and the maximum temperature drop rate and the concentration drop rate of the N temperature sensors, and collecting maximum temperature deviation and concentration deviation; on the basis of the maximum temperature deviation and the concentration deviation, the opening degree of an electromagnetic proportional valve is set to be in a large-flow state to rapidly recover the carbon dioxide concentration, and after concentration recovery is completed, control parameter compensation is conducted according to the temperature-to-concentration influence coefficient and the concentration-to-temperature influence coefficient. According to the method, the problem that temperature adjustment and concentration adjustment interfere with each other is solved, and cooperative control over parameters is achieved.

The utility model discloses an edible fungus incubator networking alarm device, which relates to the technical field of edible fungus cultivation, comprises a box body, and is characterized in that a box door is arranged on one side of the box body, a sealing gasket is arranged on one side, close to the box body, of the box door, and three mounting blocks are arranged on each of two sides of the inner wall of the box body. And draining plates are arranged among the three groups of mounting blocks. The sealing effect between the box body and the box door can be improved through the arranged sealing gasket, external dust and impurities are prevented from entering the box body to influence thallus embryos, when the box body needs to be atomized and humidified, some small water drops in the culture groove are gathered together, water can fall into the draining groove through the draining holes, and therefore the thallus embryos are prevented from being damaged. Therefore, some water can be prevented from being deposited in the culture tank for a long time to influence thalli in the culture tank, the quality of produced edible mushrooms is ensured, the culture plate can be taken out by pulling the handle, the water collected in the draining tank can be conveniently recycled, and waste of water resources is avoided.

The utility model discloses a constant-temperature shaking incubator convenient to clean, which belongs to the technical field of biological instruments, comprises an incubator body, and is characterized in that the incubator body comprises a left chamber, a middle chamber and a right chamber, a lower plate is arranged in the middle chamber in a sliding manner, a vertical motor is fixedly arranged at the upper part of the lower plate, and a driving wheel is fixedly arranged at the end part of an output shaft of the vertical motor; a middle plate is arranged above the lower plate, a driving seat is fixedly arranged in the center of the upper portion of the middle plate, an eccentric shaft set is rotatably arranged in the center of the upper portion of the driving seat, a driven wheel is rotatably arranged below the center of the driving seat, and the center of the upper portion of the driven wheel is fixedly connected with the center of the lower portion of the eccentric shaft set. An upper plate is arranged above the middle plate, a connecting sleeve is fixedly arranged at the central position of the lower part of the upper plate, the connecting sleeve is movably sleeved with the upper part of the eccentric shaft group, and a spring clip is fixedly arranged at the upper part of the upper plate.

1. Name of the product in this design: Incubator (Parrot Incubator). 2. Purpose of this design: For keeping parrots warm. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.