44results about How to "The production is convenient" patented technology

The invention discloses a silicon-based Mach-Zehnder modulator bias control device and system based on a pilot frequency method, belonging to the field of integrated photonic system control, including: a monitoring module and a bias control circuit; a monitoring module, the input end of which is connected to a silicon The output terminal of the Kimach-Zehnder modulator, which is used to obtain part of the output optical signal and convert it into an electrical signal representing optical power information; the bias voltage control circuit includes: a pilot signal generation module, whose output terminal is connected to the silicon-based Mach-Zehnder The first thermal regulator of the modulator, which is used to generate a pilot signal and apply it to the first thermal regulator; the bias voltage adjustment module, whose input terminal is connected to the output terminal of the monitoring module, and whose output terminal is connected to the silicon-based Mach Zeng The second thermal regulator of the Del modulator is used to determine the current bias point information according to the electrical signal, and generate a corresponding bias voltage, which is applied to the second thermal regulator to compensate for the drift of the bias point. The invention can improve the bias voltage control precision of the silicon-based Mach-Zehnder modulator.

The invention discloses a penaeus vanmamei circulating integrated culture system and method. The system comprises a biogas digester, a culture pond and a culture shed. The biogas digester is located underground. The culture pond is located on the biogas digester and arranged in the culture shed. The culture shed further comprises a heat supply device and an oxygen supply device. The culture pool and the biogas digester are built based on the prior art. The integrated circulating structure of the biogas digester and the culture pond is adopted for culturing penaeus vanmamei, the greenhouse type heat accumulation and preservation system design is adopted, fuel gas produced by the biogas digester is provided for the shed for keeping temperature constant, meanwhile, an appropriate temperature field can be produced in the biogas digester conveniently, the energy utilization cyclicity is improved, waste produced by culture is used for the biogas digester, and resources are reasonably utilized.

The invention relates to manufacture of garbage incinerator, and in particular relates to a whirlwind suction garbage incinerator which has the advantage of rapidness, environmental friendliness and energy conservation. The garbage incinerator comprises a furnace structure, a chassis structure and a furnace cushion structure and is characterized in that the furnace structure is a whole furnace body which is cylindrical, a center steel tube is arranged in a hearth, and the centre steel tube is vertically installed and communicated with a chimney; the top of the hearth, the bottom of the hearthand a bent tube part are connected with an exhaust pipe which is communicated with the outside of the furnace body, the periphery of the lower part of the furnace body is provided with a plurality offans, and the inlet air pipe of each fan extends into the hearth so as to form a rotary airflow forming assembly on the chassis structure; the chassis structure part in the hearth is provided with a cavity with an upward hydraucone, the hearth of the furnace cushion structure is provided with one segment of cavity with an upward hydraucone, and two segments of cavities with downward hydraucones are positioned above; and the upper part of the furnace body is provided with at least two feed inlets. The garbage incinerator provided by the invention has the advantages of rapidness, environmental friendliness, energy conservation and lower cost.

The invention belongs to the weaving field, and particular relates to a hemp and long-staple cotton blended 80-count yarn and a production method. <{EN2}>The blended 80-count yarn is produced by blending the hemp and the long-staple cotton in a weight proportion of 40-50:60. <{EN3}>The production method comprises the steps of cotton blending, blooming, combing, fine combing, drawing, roving, spinning and winding. <{EN4}>The 80-count yarn blended by the hemp and the long-staple cotton belongs to high count yarns and the content of the hemp is 40% and more, and realizing the purpose of producing a high count yarn when the content of the hemp is high. <{EN5}>The blended 80-count yarn can be used to produce clothes, and the fabrics obtained has the clean feeling of hemp and the soft feeling of cotton fabrics, no scratchiness and has bacteriostasis and antibacterial function; the yarn has the advantages of moisture absorption, ventilation, cool and comfort feeling; the yarn is safe and has excellent ultraviolet resistance function, antistatic performance, heatproof performance, lightfastness and no pollution; and the yarn is the first choice for producing a high-grade shirt.