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702 results about "Lean manufacturing" patented technology

Lean manufacturing or lean production is a systematic method originating in the Japanese manufacturing industry for the minimization of waste (無駄 muda) within a manufacturing system without sacrificing productivity, which can cause problems. Lean also takes into account waste created through overburden (無理 muri) and unevenness in work loads (斑 mura). Working from the perspective of the client who consumes a product or service, "value" is any action or process that a customer would be willing to pay for.

Flexible wearable electronic strain sensor and manufacturing method thereof

The invention relates to the sensor manufacturing and packaging technology field and discloses a flexible wearable electronic strain sensor and a manufacturing method thereof. The flexible wearable electronic strain sensor comprises a flexible substrate, wherein the flexible substrate internally has a flexible micro channel, the micro channel is internally provided with a liquid conductor or a semi-liquid conductor, and two ends of the micro channel are provided with electrodes. Wearable equipment has the flexible wearable electronic strain sensor. The manufacturing method of the flexible wearable electronic strain sensor comprises steps that the flexible substrate having the flexible micro channel is manufactured; the micro channel is internally injected with the liquid conductor or the semi-liquid conductor, and the electrodes are inserted at the two ends of the micro channel. The flexible wearable electronic strain sensor and the manufacturing method thereof are advantaged in that high flexibility, stretching property and thinness are realized, so the flexible wearable electronic strain sensor can be directly integrated with any flexible actuating mechanisms, sensitivity is high, anti-interference capability is strong, and the flexible wearable electronic strain sensor can normally operate even when strain reaches 300%.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Pneumatic multi-nozzle complex tissue and organ manufacturing system with multiple degrees of freedom

The invention relates to a pneumatic multi-nozzle complex tissue and organ manufacturing system with multiple degrees of freedom, belonging to the field of organ manufacturing. The system comprises an X-direction movement mechanism, a Y-direction movement mechanism, a Q-direction rotation mechanism, a lifting platform, a rotary forming table, a shell, a high-pressure air source, a multi-nozzle forming unit, a spray solution pressure tank, a temperature control device, a sterilization device and a control unit. Under the control of the control unit, the multi-nozzle unit moves according to the set path and can spray according to the set sequence, so that the forming size is wide in cover range; the relative angle formed between a center shaft of a spray valve and the surface of the rotary forming table can be changed, so that a complex curved surface can be conveniently manufactured. The system enables multiple cells and support materials to be arranged at the corresponding positions for once according to the computer instruction, and various subsequent processing processes can be completed at the same time; the formed three-dimensional structure is directly connected with the corresponding circulating system in vivo, and various physiological functions of the complex tissues and organs can be rapidly realized.
Owner:TSINGHUA UNIV

Assembly type overhead construction process

The invention provides an overhead construction process, which comprises the following steps of measuring data and calculating the wire length, wherein field data and the influencing quantity of the pressure welding length of a strain clamp are collected and the length of a strain insulator-string is measured; and calculating the wire length according to a formula, wherein L is the wire length; H is the conductor tension; omega is the weight of the conductor per unit length; l is the horizontal distance between the hanging points of the conductor; h is the altitude difference between the hanging points of the conductor; performing fixed-length manufacturing and machining wires, wherein the length of each conductor is calculated according to a wire length calculation formula, the conductor allocation is performed based on the control of the longest conductor of each phase, and the length of the conductor of each coil to be machined is determined; releasing the wires; and tightly hanging the wires. In the overhead construction process, the length of the required wire of each span can be measured directly on the ground, the installation position of a suspension clamp is demarcated, and thus the wires are suspended to achieve the preset completion sag without wire sag observation. Meanwhile, the overhead construction process and the quality level are improved, while the construction quality and the safety are ensured.
Owner:HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENG

Folding-type microchannel porous flat pipe and molding method thereof

The invention discloses a folding-type microchannel porous flat pipe and a molding method thereof. The flat pipe is formed by subjecting a single thin slab to integral molding, and the single thin slab is sequentially advanced by a mechanical bending mechanism in a multi-point molding control manner, wherein two ends of the single thin slab are respectively bent circuitously, then the circuitously bent parts are vertically bent twice and then horizontally turned and folded once and are butt-jointed at a mesal position of the single thin slab for integral molding, and thus, a porous flat pipe with mutually spaced fine pores is further formed. Compared with the prior art, the invention has the beneficial effects that: 1, the structural form of the flat pipe disclosed by the invention is suitable to being used in a light-weight heat exchanger with light weight and high heat conductivity; 2, the advantages of compact entire structure, high heat exchange efficiency, light weight, firmness, durability, and operation safety and reliability are achieved; 3, by adopting the integral folding and molding structure, the energy consumption of a product production process is low, and the pressure resistance of products is good; and 4, the effect of producing and yield can be achieved through mechanical control, the inventory level is greatly reduced, the product turnover efficiency is increased, and the requirement on lean production can be met.
Owner:YANGJIANG BAOMALI AUTO AIR CONDITIONER

Differential capacitive micro-acceleration transducer and manufacturing method thereof

The invention discloses a differential capacitive micro-acceleration transducer and a manufacturing method thereof. According to the method, the manufacturing of a movable mass block and an elastic beam is completed by using a bulk-silicon process, and the structure manufacturing and the releasing of a device structure are simultaneously completed by using a dry etching method; a movable electrode and the movable mass block are same in shape and size, so that an operation of repeated photoetching is avoided, thereby greatly simplifying the process; the stiffness of the designed elastic beam is small in the sensitive direction and large in the sensitive vertical direction, therefore, the elastic beam is higher in selectivity and anti-crosstalk capacity; and a device is simply and reliably packaged by using a wafer-level low-temperature vacuum aligned-bonding technology, thereby facilitating the large-scale manufacturing of the device. In addition, the differential capacitive micro-acceleration transducer disclosed by the invention adopts a variable-area type operating principle, so that the movable mass block is only damped by a sliding membrane in the process of moving, thereby improving the sensitivity.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Method for promoting Bunsen reaction in thermochemical iodine-sulfur cycle for hydrogen manufacturing

ActiveCN103213945AOmit the concentration stepIncreased reaction kinetic rateHydrogen productionMass ratioDistillation
The invention relates to a technique of iodine cycles for hydrogen manufacturing, and aims to provide a method for promoting a Bunsen reaction in a thermochemical iodine-sulfur cycle for hydrogen manufacturing. The method comprises the following steps: adding I2 and H2O in a reactor, and heating a reaction solution to 30-72 DEG C; adding hydroiodic acid under the condition that the mass ratio of HI / H2O is 1 / 36-1 / 18: 1, and mixing the reaction solution at a uniform speed so as to ensure I2 is completely dissolved; feeding SO2 at a constant flow rate, and spontaneously carrying out the Bunsen reaction so as to obtain H2SO4 and HI; and in the presence of excessive iodine, carrying out the separation of liquid-liquid phases, so that the reaction achieves a liquid-liquid equilibrium state finally. According to the invention, the original gas-liquid-solid three-phase reaction is transferred into a gas-liquid reaction, and then the kinetic velocity of the Bunsen reaction is improved; and added HI has certain contribution to the improvement of the concentration of HI in a HIx phase in a thermodynamic equilibrium state, and HI achieves a super azeotropic concentration, so that the situation that pure HI steam is obtained through subsequent distillation is facilitated, and a HI concentration step can be cancelled, therefore, the method is extremely advantageous to the simplification of a whole SI circulation system and the improvement of the thermal efficiency of the system.
Owner:ZHEJIANG UNIV
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