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1.发明授权Quarter-square analog four-quadrant multiplier using MOS integrated circuit technology 失效使用MOS集成电路技术的四分之一平方的模拟四象限乘法器
公开(公告)号：US4546275A
公开(公告)日：1985-10-08
申请号：US500540
申请日：1983-06-02
CPC分类号： G06G7/164
摘要： A four-quadrant NMOS transconductance multiplier including plural NMOS transistors formed in a substrate to produce a pair of summer stages and a pair of squaring stages which process a pair of input signals V.sub.1, V.sub.2 to produce an output signal V.sub.o according to the quarter-square algebraic identity,V.sub.o =1/4[(V.sub.1 +V.sub.2).sup.2 -(V.sub.1 -V.sub.2).sup.2 ]=V.sub.1 V.sub.2.In a preferred embodiment, the substrate doping N.sub.A =6.7.times.10.sup.15 cm.sup.-3 and the channel width and channel length of each of the NMOS transistors forming the summer and squaring stages is greater than 10 .mu.m.
摘要翻译： 一个四象限的NMOS跨导乘法器，包括形成在衬底中的多个NMOS晶体管，以产生一对加法级，并且一对平方根处理一对输入信号V1，V2以产生根据四分之一平方的输出信号Vo 代数识别，Vo = 1/4 [（V1 + V2）2-（V1-V2）2] = V1V2。 在优选实施例中，掺杂NA = 6.7×10 15 cm -3的衬底以及形成夏季和平方级的每个NMOS晶体管的沟道宽度和沟道长度大于10微米。
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公开(公告)号：US4538825A
公开(公告)日：1985-09-03
申请号：US590429
申请日：1984-03-15
CPC分类号： A61G5/1021 , A61G5/10 , A61G5/1008 , A61G5/1027 , A61G5/1035 , A61G5/1086 , A61G5/1024 , B62B5/048 , Y10S297/04
摘要： The customary side hand propulsion ring adjacent to each main wheel of a manual wheelchair is mounted through a lost motion connection between the propulsion ring and main wheel so that the propulsion ring can have limited rotational movement relative to the main wheel. A friction brake drum or partial drum fixed to the wheelchair frame inside of the main wheel is engaged by at least one of a plurality of circumferentially spaced over center friction locking devices pivotally held on the main wheel. Each over center friction locking device is moved by a release element to a non-locking position relative to the drum or partial drum in response to reverse movement of the propulsion ring by a chair occupant. Economy and ease of operation are provided for. The wheelchair occupant need not remove his or her hand from the propulsion ring when operating the anti-rollback mechanism.
摘要翻译： 与手轮轮椅的每个主轮相邻的常规侧手推进环通过推进环和主轮之间的空动连接安装，使得推进环相对于主轮具有有限的旋转运动。 固定在主轮内部的轮椅架上的摩擦制动鼓或部分滚筒由枢转地保持在主轮上的多个周向间隔开的中心摩擦锁定装置中的至少一个啮合。 响应于推动环由椅子乘员的反向移动，每个过中心的摩擦锁定装置通过释放元件相对于鼓或部分鼓被移动到非锁定位置。 提供经济性和易操作性。 轮椅乘员在操作防回卷机构时，不需要从推进环中取出他或她的手。
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3.发明授权Fractional distillation of C.sub.2 /C.sub.3 Hydrocarbons at optimum pressures 失效在最佳压力下对C2 / C3烃进行分馏
公开(公告)号：US4464189A
公开(公告)日：1984-08-07
申请号：US385576
申请日：1982-04-05
申请人： Daniel W. Tedder
发明人： Daniel W. Tedder
CPC分类号： F25J3/0242 , C07C7/04 , F25J3/0219 , F25J3/0238 , F25J2210/12 , F25J2215/62 , F25J2215/64
摘要： A method of recovering by distillation the separate components of a hydrocarbon gas mixture comprising ethylene, ethane, propylene and propane which comprises separating the ethylene and ethane as an overhead from a propylene and propane bottom in a first distillation tower at from about 400 to about 600 psia, separating ethylene and ethane as an ethylene overhead and an ethane bottom in a second distillation tower at from about 600 to about 700 psia, and separating propylene as an overhead from a propane bottom in a third distillation tower at from about 280 to about 300 psia is disclosed.
摘要翻译： 通过蒸馏回收包含乙烯，乙烷，丙烯和丙烷的烃气混合物的分离组分的方法，其包括在第一蒸馏塔中将乙烯和乙烷作为塔顶馏出物从丙烯和丙烷底部以约400至约600 psia，以约600至约700psia在第二蒸馏塔中分离乙烯和乙烷作为乙烯塔顶馏出物和乙烷底部，并将第二蒸馏塔中的丙烷作为塔顶馏出物从丙烷底部分离，约280至约300 psia被披露。
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公开(公告)号：US4428308A
公开(公告)日：1984-01-31
申请号：US326046
申请日：1981-11-30
CPC分类号： C10J3/26 , C10J3/36 , C10J3/723 , C10J3/74 , C10J2300/0916 , C10J2300/0956 , C10J2300/1253 , C10J2300/1846 , C10J2300/1869 , C10J2300/1884 , Y02P20/129 , Y02P20/145
摘要： A biomass gasification method and apparatus employs a rectangular design and linear injection of feedstock to allow compact modular design to accommodate a wide variety of energy demands with a single-size production unit which can be stacked with others for different energy output demands. The method and construction make use of a long and narrow grate in combination with an air supply system and producer gas return system which uses a down-draft technique to restrict and control by-products and to improve the efficiency of the energy conversion system.
摘要翻译： 生物质气化方法和装置采用矩形设计和线性注射原料，以允许紧凑的模块化设计，以适应各种各样的能量需求与单一尺寸的生产单元，可以与其他堆叠与不同的能量输出需求。 该方法和结构采用长而窄的格栅结合空气供应系统和生产天然气回流系统，采用下降技术来限制和控制副产品，提高能量转换系统的效率。
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公开(公告)号：US4343765A
公开(公告)日：1982-08-10
申请号：US215269
申请日：1980-12-11
申请人： Lewis W. Elston , David R. Hurst
发明人： Lewis W. Elston , David R. Hurst
CPC分类号： F24F3/16 , A61L9/00 , A61L9/015 , B01D53/34 , F24F2003/1671 , F24F2011/0021 , Y02B30/78
摘要： In a first embodiment of the method and apparatus, the oxidant is loaded upon a support bed and is continuously regenerated by an ozone generator located upstream from the support bed. The ozone generator has a capacity less than the peak load requirement for the oxidant but fully regenerates the oxidant during low load periods. An ozone detector is located downstream from the support bed and includes a control circuit for selectively deactivating the ozone generator when the ozone downstream from the support bed exceeds a predetermined level. The support bed is composed of inert or adsorbing granular material. In a second embodiment, an aqueous solution containing a water soluble oxidant is applied to the support bed and is rinsed out following a purification cycle. The rinsed oxidant is replaced by fresh oxidant from a reservoir and the rinsed, spent oxidant is regenerated in an electrolytic or chemical regenerator and returned to the oxidant reservoir. Parallel, alternatively operated, conduit sections including support beds therein may be provided so that one conduit section is operative to purify air flow while the other conduit section is being regenerated.
摘要翻译： 在该方法和装置的第一个实施方案中，氧化剂被加载到支撑床上，并且通过位于支撑床上游的臭氧发生器连续再生。 臭氧发生器的容量小于氧化剂的峰值负载要求，但在低负载期间完全再生氧化剂。 臭氧检测器位于支撑床的下游，并且包括当从支撑床下游的臭氧超过预定水平时选择性地使臭氧发生器停用的控制电路。 支撑床由惰性或吸附颗粒材料组成。 在第二个实施方案中，将含有水溶性氧化剂的水溶液施加到载体床上，并在纯化循环后进行冲洗。 漂洗后的氧化剂由来自储存器的新鲜氧化剂代替，并且经过冲洗的废氧化剂在电解或化学再生器中再生并返回到氧化剂储存器。 平行的，可选地操作的，可以设置包括其中的支撑床的导管部分，使得一个管道部分可操作以净化空气流，同时另一管道部分被再生。
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公开(公告)号：US4284860A
公开(公告)日：1981-08-18
申请号：US135085
申请日：1980-03-28
IPC分类号： H04R29/00
CPC分类号： H04R29/003
摘要： A novel method for the measurement of the Thiele-Small small-signal parameters of a moving-coil electromagnetic transducer driver is disclosed. The technique is based on a time domain analysis of the transient response of a loudspeaker voice coil circuit to a current step of excitation. By sampling the damped sinusoidal transient generated by such an excitation, the loud-speaker parameters can be calculated from a linear predictive analysis of the recorded data.
摘要翻译： 公开了一种用于测量动圈式电磁换能器驱动器的Thiele-Small小信号参数的新颖方法。 该技术基于对扬声器音圈电路到当前激励步骤的瞬态响应的时域分析。 通过对由这种激励产生的阻尼正弦瞬态进行采样，可以从记录数据的线性预测分析中计算扬声器参数。
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公开(公告)号：US4153978A
公开(公告)日：1979-05-15
申请号：US828893
申请日：1977-08-29
申请人： Louis H. Bangert
发明人： Louis H. Bangert
摘要： A method and apparatus are provided for aligning individual fibers parallel to the main fluid stream that is conveying them, using fluid-dynamic forces. This method and apparatus are based on the use of converging streamlines in a nearly irrotational flow to provide the necessary moments to rotate the fibers so that they become parallel to the streamlines. Counterflow jets are provided to create the desired streamline behavior in a main fluid stream. The irrotationality of the flow and the nearly parallel streamlines thus prevent further fiber rotation downstream.
摘要翻译： 提供了一种方法和装置，用于使用流体动力力对准平行于正在传送它们的主流体流的各个纤维。 该方法和装置基于在几乎不旋转流中使用会聚流线，以提供必要的时刻来旋转纤维，使得它们变得平行于流线。 提供逆流喷嘴以在主流体流中产生所需的流线性能。 流动的不协调性和几乎平行的流线因此阻止下游进一步的纤维旋转。
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公开(公告)号：US2795979A
公开(公告)日：1957-06-18
申请号：US44333554
申请日：1954-07-14
申请人： GEN MOTORS CORP
发明人： ZERWICK JOHN C
IPC分类号： B23B51/10
CPC分类号： B23B51/10 , B23B2251/282 , Y10T408/9095
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9.发明授权
公开(公告)号：US4660038A
公开(公告)日：1987-04-21
申请号：US546311
申请日：1983-10-28
IPC分类号： G01S13/95
CPC分类号： G01S13/951
摘要： An apparatus and method are disclosed which employ the Doppler principle to measure the terminal velocity and, hence, the size distribution of hydrometeors such as raindrops and hailstones. The apparatus of the present invention employs a ground-based, upwardly directed, low power, 10.525 GHz homodyne continuous wave radar module to transmit microwave signals to falling hydrometeors within the size range of 0.5 mm through 4.0 cm, to record the frequency distribution and power spectrum of the reflected signals, and to process these data with "terminal velocity"-to-"hydrometeor diameter" calibration data to generate information on the hydrometeor size distribution in the precipitation under observation. The disclosed method permits a user of the apparatus to select the Doppler velocity threshold above which data are recorded for processing with a Fast Fourier Transform technique to determine hydrometer velocity values.
摘要翻译： 公开了一种使用多普勒原理来测量终端速度的装置和方法，因此测量诸如雨滴和冰雹之类的水力计的尺寸分布。 本发明的装置采用基于地面的向上导向的低功率10.525GHz零差连续波雷达模块，以将微波信号传输到在0.5mm至4.0cm的尺寸范围内的下降的水力发生器，以记录频率分布和功率 反射信号的频谱，并用“终端速度”到“水文流星直径”校准数据处理这些数据，以产生观测降水中水汽流体大小分布的信息。 所公开的方法允许设备的用户选择多普勒速度阈值，在该多普勒速度阈值上方，数据被记录以用快速傅立叶变换技术进行处理以确定比重计速度值。
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公开(公告)号：US4537415A
公开(公告)日：1985-08-27
申请号：US583407
申请日：1984-02-24
CPC分类号： A61G5/1016 , A61G5/1008 , A61G5/1013 , A61G5/1035 , B62B5/0476 , Y10S297/04
摘要： To substantially reduce the physical effort required to slow or stop a manually propelled wheelchair, the customary propulsion ring attached to the outer side of each main chair wheel is mounted on the wheel for limited inward axial movement under manual pressure and is biased outwardly by spring force. A brake ring of similar diameter near the interior side of each wheel in a plane parallel to the plane occupied by the propulsion ring is connected directly with the propulsion ring. An opposing friction brake shoe attached to the chair frame is engaged by the brake ring to slow or stop the chair whenever the chair occupant pushes the propulsion ring axially inwardly.
摘要翻译： 为了大大减少用于减慢或停止手动推进轮椅所需的身体力量，附接到每个主椅轮的外侧的常规推进环安装在车轮上，用于在手动压力下有限的向内轴向运动，并且通过弹簧力向外偏置 。 在平行于由推进环占据的平面的平面附近的每个车轮的内侧附近的类似直径的制动环直接与推进环连接。 安装在椅子框架上的相对的摩擦制动蹄与制动环接合，以便当椅子乘员沿轴向向内推动推进环时，减慢或停止椅子。
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