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    • 11. 发明授权
    • Single expander and a cold compressor process to produce oxygen
    • 单一膨胀机和冷压机生产氧气
    • US5901576A
    • 1999-05-11
    • US10966
    • 1998-01-22
    • Rakesh AgrawalDonn Michael HerronYanping Zhang
    • Rakesh AgrawalDonn Michael HerronYanping Zhang
    • F25J3/04F25J3/00
    • F25J3/04351F25J3/04054F25J3/0406F25J3/0409F25J3/04284F25J3/04303F25J3/04412F25J3/04418F25J2200/54F25J2215/50F25J2250/20F25J2250/42F25J2250/52
    • In a process for the cryogenic distillation of air in a distillation column system that contains at least one distillation column wherein the boil-up at the bottom of the distillation column producing the oxygen product is provided by condensing a stream whose nitrogen concentration is equal to or greater than that in the feed air stream, which comprises the steps of: (a) generating work energy which is in excess of the overall refrigeration demand of the distillation column system by at least one of the following three methods: (1) work expanding a first process stream with nitrogen content equal to or greater than that in the feed air and then condensing at least a portion of the expanded stream by latent heat exchange with at least one of the two liquids: (i) a liquid at an intermediate height in the distillation column producing oxygen product and (ii) one of the liquid feeds to this distillation column having an oxygen concentration equal to or preferably greater than the concentration of oxygen in the feed air; (2) condensing at least a second process stream with nitrogen content equal to or greater than that in the feed air by latent heat exchange with at least a portion of an oxygen-enriched liquid stream which has oxygen concentration equal to or preferably greater than the concentration of oxygen in the feed air and which is also at a pressure greater than the pressure of the distillation column producing oxygen product, and after vaporization of at least a portion of oxygen-enriched liquid into a vapor fraction due to latent heat exchange, work expanding at least a portion of the resulting vapor stream; and (3) work expanding a fraction of the feed air; (b) using the work which is generated in excess of the refrigeration need of the distillation column system to cold compress a process stream at a temperature lower than the ambient temperature.
    • 在含有至少一个蒸馏塔的蒸馏塔系统中对空气进行低温蒸馏的方法中,其中产生氧产物的蒸馏塔底部的沸腾是通过将其浓度等于或等于 大于进料空气流,其包括以下步骤:(a)通过以下三种方法中的至少一种产生超过蒸馏塔系统的总体制冷需求的工作能量:(1)工作扩展 氮气含量等于或大于进料空气中的第一工艺流,然后通过与两种液体中的至少一种进行潜热交换来冷凝至少一部分膨胀流:(i)中间高度的液体 在蒸馏塔中生产氧气产物和(ii)到该蒸馏塔的液体进料之一,其氧浓度等于或优选大于浓度 进料空气中的氧气; (2)通过与氧浓度等于或优选大于或等于或等于或等于或等于或等于或等于或等于或等于或等于或等于的氧的富氧液流的至少一部分的潜热交换来冷凝至少等于或大于进料空气中的氮含量的第二工艺流 进料空气中的氧气浓度也大于产生氧气产物的蒸馏塔的压力的压力,并且在至少一部分富氧液体由于潜热换热而蒸发成蒸气馏分之后,工作 膨胀所得蒸气流的至少一部分; 和(3)扩大进料空气的一部分; (b)使用超过蒸馏塔系统的制冷需要产生的作业在低于环境温度的温度下冷却工艺流。
    • 15. 发明申请
    • Mobility management entity information deleting method and device
    • 移动管理实体信息删除方法和设备
    • US20100234019A1
    • 2010-09-16
    • US12783359
    • 2010-05-19
    • Yanping ZhangWeihua HuHan ZhouZhongping Chen
    • Yanping ZhangWeihua HuHan ZhouZhongping Chen
    • H04W8/02
    • H04W8/04H04W60/00
    • A mobility management entity (MME) information deleting method includes: receiving a message sent by a first MME; and if needed, determining whether it is necessary to delete information about the first MME according to version information about the first MME. The method further includes: receiving a message sent by a target MME, in which the message carries version information about a source MME acquired by the target MME or an indication of deleting information about the source MME added by the target MME; and deleting the information about the source MME according to the message. A network device for deleting MME information is also provided. According to the present invention, a network device, such as a home subscriber server (HSS), is capable of acquiring version information about a source MME or receiving an indication of deleting information about the source MME, so as to determine whether it is necessary to delete the information about the MME.
    • 移动性管理实体(MME)信息删除方法包括:接收由第一MME发送的消息; 如果需要,根据关于第一MME的版本信息确定是否需要删除关于第一MME的信息。 该方法还包括:接收目标MME发送的消息,其中该消息携带由目标MME获取的源MME的版本信息或关于目标MME添加的源MME的删除信息的指示; 根据该消息删除源MME的信息。 还提供了用于删除MME信息的网络设备。 根据本发明,诸如归属订户服务器(HSS)的网络设备能够获取关于源MME的版本信息或者接收关于源MME的删除信息的指示,以便确定是否需要 删除关于MME的信息。
    • 16. 发明授权
    • Micro structure and its manufacture method
    • 微结构及其制造方法
    • US06379773B1
    • 2002-04-30
    • US09602274
    • 2000-06-23
    • Takanori KatohYanping Zhang
    • Takanori KatohYanping Zhang
    • B32B324
    • B81C1/00126B32B3/02B32B27/06G03F7/00G03F7/075G03F7/09G03F7/2039Y10T428/24331Y10T428/24339
    • A laminated substrate is prepared, the laminated substrate having two layers including a first film and a second film in tight contact with the first film, the second film being made of a material capable of being etched with synchrotron radiation light. A mask member with a pattern is disposed in tight contact with the surface of the second film of the laminated structure or at a distance from the surface of the second film, the pattern of the mask member being made of a material not transmitting the synchrotron radiation light. The synchrotron radiation light is applied on a partial surface area of the second film via the mask member to etch the second film where the synchrotron radiation light is applied and to expose a partial surface area of the first film on the bottom of an etched area.
    • 制备层压基板,层压基板具有包括第一膜和与第一膜紧密接触的第二膜的两层,第二膜由能够用同步加速器辐射光蚀刻的材料制成。 具有图案的掩模构件设置成与层压结构的第二膜的表面紧密接触或者距离第二膜的表面一定距离,掩模构件的图案由不透射同步辐射的材料制成 光。 经由掩模构件将同步加速器辐射光施加在第二膜的部分表面区域上,以蚀刻施加了同步加速器辐射光的第二膜并暴露蚀刻区域的底部上的第一膜的局部表面区域。
    • 18. 发明授权
    • Analog-to-digital converter with controlled error calibration
    • 具有受控误差校准的模数转换器
    • US09191021B1
    • 2015-11-17
    • US14696482
    • 2015-04-26
    • Zhiling SuiZhijun ChenZhihong ChengYanping Zhang
    • Zhiling SuiZhijun ChenZhihong ChengYanping Zhang
    • H03M1/10H03M1/12H03M1/42H03M1/44
    • H03M1/0639H03M1/0695H03M1/1009H03M1/12H03M1/164H03M1/44
    • A pipelined analog-to-digital converter (ADC) that converts an analog input voltage signal Vin into a digital output value Dout. The ADC has a sequence of stages including a first calibrated stage having: (1) an ADC sub-module that receives Vin and provides an ADC sub-module digital output value based on Vin, (2) a DAC sub-module that receives the ADC sub-module digital output value and outputs a corresponding analog voltage signal VDAC, (3) a first difference module that generates an analog residual-voltage signal based on a difference between Vin and VDAC, and (4) an artificial-noise-insertion module that inserts an analog artificial-noise voltage signal into the residual voltage signal to generate an analog combined voltage signal. The analog combined voltage signal is used to calibrate the first calibrated stage. The artificial-noise-insertion module generates the polarity of the artificial-noise voltage signal based on the polarity of the corresponding residual voltage signal.
    • 用于将模拟输入电压信号Vin转换为数字输出值Dout的流水线模数转换器(ADC)。 ADC具有一系列级,包括第一校准级,其具有:(1)ADC子模块,其接收Vin并基于Vin提供ADC子模块数字输出值,(2)DAC子模块,其接收 ADC子模块数字输出值,并输出相应的模拟电压信号VDAC,(3)基于Vin和VDAC之间的差产生模拟残留电压信号的第一差分模块,(4)人造噪声插入 模块,其将模拟人造噪声电压信号插入残余电压信号中以产生模拟组合电压信号。 模拟组合电压信号用于校准第一个校准级。 人造噪声插入模块基于相应的残留电压信号的极性产生人为噪声电压信号的极性。