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    • 89. 发明授权
    • Non-invasive method of determining inflammation of the gastrointestinal
tract
    • 确定胃肠道炎症的非侵入性方法
    • US5524622A
    • 1996-06-11
    • US309255
    • 1994-09-20
    • Richard A. Wilson
    • Richard A. Wilson
    • A61B5/026A61B6/00
    • A61B5/42A61B5/0261A61B6/4258
    • A non-invasive method of determining the presence of inflammation in a region of the gastrointestinal tract of an organism comprises introducing an arterial dilating agent into the circulatory system that provides blood flow to that region, then introducing a blood flow marking medium into the circulation providing blood flow to that region. The amount of blood flow marking medium present in that region is then monitored as an indication of the extent of inflammation present in that region. The capability of inflamed gastrointestinal tract tissue to take up increased amounts of the blood flow marking medium provides an indication of the presence of an abnormal pathologic process in that region of the gastrointestinal tract. In the preferred embodiment of the method, the arterial dilator is dipyridamole. The blood flow marking medium is thallium-201, and its accumulation in the region of the gastrointestinal tract is monitored by measuring the radioactive emissions by thallium-201 scintigraphy. The method permits the non-invasive determination of the presence of inflammation in the gastrointestinal tract of an organism.
    • 确定生物体的胃肠道区域中存在炎症的非侵入性方法包括将动脉扩张剂引入到向该区域提供血液流动的循环系统中,然后将血液流动标记培养基引入循环中,提供 血液流向该地区。 然后监测存在于该区域中的血流量标记培养基的量作为该区域中存在的炎症程度的指示。 发炎胃肠道组织摄取增加量的血流标记培养基的能力提供了在胃肠道区域存在异常病理过程的指征。 在该方法的优选实施方案中,动脉扩张器是双嘧达莫。 血液流动标记培养基是铊-201,通过测量铊-201闪烁扫描的放射性排放来监测其在胃肠道区域的积累。 该方法允许非侵入性确定生物体的胃肠道中炎症的存在。
    • 90. 发明授权
    • Control system for automatic guided vehicles
    • 自动导向车控制系统
    • US4811229A
    • 1989-03-07
    • US500
    • 1987-01-05
    • Richard A. Wilson
    • Richard A. Wilson
    • G05D1/02G06F15/50
    • G05D1/0244G05D1/0242
    • A control system for guiding a vehicle over a floor. The system includes a narrow length of retroflective tape applied to the floor to define a path, an array of LED-phototransistor sensors to generate light toward the tape and generate sensor output signals proportional to the portion of the sensor fields of view occupied by the retroreflective tape. The output signal of each of the sensors is compared to a stair-step reference signal during a 10 millisecond cyclic time period and a binary output signal for each sensor is generated indicating whether the amplitude of the sensor output signal is above or below the changing threshold reference signal. The binary value of each of the sensor output signals is sampled once each millisecond during the time period and the binary values are combined to generate a byte for each sampling occasion. Each of the bytes corresponds to a location in a lookup table which includes interim vehicle lateral directional and displacement commands. The commands corresponding to each of the table location values generated during the 10 millisecond period are mathematically summed to generate a final vehicle command. Two lookup tables are provided for selectively following the left or right edge of the tape.
    • 一种用于将车辆引导到地板上的控制系统。 该系统包括应用于地板以限定路径的窄长度的反光带,用于产生朝向带的光的LED-光电晶体管传感器的阵列,并且产生与传感器视场成比例的传感器输出信号,所述传感器视场被逆反射 胶带。 每个传感器的输出信号在10毫秒循环时间周期内与阶梯参考信号进行比较,并且生成每个传感器的二进制输出信号,指示传感器输出信号的幅度是否高于或低于变化阈值 参考信号。 每个传感器输出信号的二进制值在时间周期内每毫秒采样一次,二进制值被组合以产生每个采样时刻的一个字节。 每个字节对应于查找表中的位置,其包括临时车辆横向和位移命令。 对应于在10毫秒周期期间产生的每个表位置值的命令被数学求和以产生最终车辆命令。 提供了两个查找表,用于选择性地跟随磁带的左边缘或右边缘。