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公开(公告)号：US20130269508A1
公开(公告)日：2013-10-17
申请号：US13093602
申请日：2011-04-25
IPC分类号： F41H5/06
摘要： A shock wave barrier comprises a periodic structure having the proper symmetry and local contrast modulation of the acoustic index to divert an incident shock wave by using constructive/destructive interference phenomena that produce a “band gap” in the transmission spectrum of the periodic structure. In general, shock wave energy within the band gap is reflected from the structure. Defect cavities may be formed in the periodic structure to create transmission resonances or “windows” in the band gap. A portion of the incident energy passes through the window and is concentrated in the defect cavities where it is dissipated by other means. The band gap can be quite wide, at least 50% of the center wavelength, and thus can provide an effective barrier from a wide variety of threats with varying blast pressure and range. The structure may be periodic in two or three dimensions providing a band gap barrier in two or three dimensions, respectively.
摘要翻译： 冲击波屏障包括通过使用在周期性结构的透射光谱中产生“带隙”的建构性/相消干涉现象，具有声学指数的适当对称性和局部对比度调制以转移入射冲击波的周期性结构。 一般来说，带隙内的冲击波能量从结构中反映出来。 可以在周期性结构中形成缺陷腔，以在带隙中产生传输谐振或“窗口”。 入射能量的一部分通过窗口并集中在缺陷腔中，在其中通过其它方式消散。 带隙可以相当宽，至少占中心波长的50％，从而可以提供来自各种各样的威胁的有效屏障，具有不同的鼓风压力和范围。 该结构可以是两维或三维的周期性的，分别提供两维或三维的带隙势垒。
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公开(公告)号：US08082844B1
公开(公告)日：2011-12-27
申请号：US12473275
申请日：2009-05-28
IPC分类号： F42D5/045
CPC分类号： F42B12/207 , C06B45/00 , C06C7/00 , F42B39/14 , F42D5/04
摘要： An acoustic crystal explosive, which gains its properties from both its periodic structure and its composition, may be configured to suppress or enhance the sensitivity of detonation of the explosive in response to an acoustic wave. An explosive material and a medium (explosive or inactive) are arranged in a periodic array that provides local contrast modulation of the acoustic index to define a band gap in the acoustic transmission spectrum of the explosive materials. At least one defect cavity in the periodic array creates a resonance in the band gap. The defect cavity concentrates energy from an incident acoustic (shock) wave to detonate the explosive. Multiple defect cavities may be configured to provide a desired shaped charge or volumetric detonations. Means may be provided to reprogram the defect cavity(ies) to reconfigure the explosive.
摘要翻译： 从其周期性结构及其组成中获得其性质的声晶体炸药可以被配置为抑制或提高爆炸物响应于声波的爆震的灵敏度。 爆炸性材料和介质（爆炸性或非活性）以周期性阵列布置，其提供声学指数的局部对比度调制以限定爆炸材料的声学透射谱中的带隙。 周期性阵列中的至少一个缺陷腔在带隙中产生共振。 缺陷腔集中来自入射声（冲击）波的能量以引爆炸药。 多个缺陷腔可以被配置成提供期望的成形电荷或体积爆炸。 可以提供装置以重新编程缺陷腔以重新配置炸药。
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公开(公告)号：US08555768B1
公开(公告)日：2013-10-15
申请号：US13093602
申请日：2011-04-25
IPC分类号： F41H5/24
摘要： A shock wave barrier comprises a periodic structure having the proper symmetry and local contrast modulation of the acoustic index to divert an incident shock wave by using constructive/destructive interference phenomena that produce a “band gap” in the transmission spectrum of the periodic structure. In general, shock wave energy within the band gap is reflected from the structure. Defect cavities may be formed in the periodic structure to create transmission resonances or “windows” in the band gap. A portion of the incident energy passes through the window and is concentrated in the defect cavities where it is dissipated by other means. The band gap can be quite wide, at least 50% of the center wavelength, and thus can provide an effective barrier from a wide variety of threats with varying blast pressure and range. The structure may be periodic in two or three dimensions providing a band gap barrier in two or three dimensions, respectively.
摘要翻译： 冲击波屏障包括通过使用在周期性结构的透射光谱中产生“带隙”的建构性/相消干涉现象，具有声学指数的适当对称性和局部对比度调制以转移入射冲击波的周期性结构。 一般来说，带隙内的冲击波能量从结构中反映出来。 可以在周期性结构中形成缺陷腔，以在带隙中产生传输谐振或“窗口”。 入射能量的一部分通过窗口并集中在缺陷腔中，在其中通过其它方式消散。 带隙可以相当宽，至少占中心波长的50％，从而可以提供来自各种各样的威胁的有效屏障，具有不同的鼓风压力和范围。 该结构可以是两维或三维的周期性的，分别提供两维或三维的带隙势垒。
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公开(公告)号：US20120006216A1
公开(公告)日：2012-01-12
申请号：US12473275
申请日：2009-05-28
CPC分类号： F42B12/207 , C06B45/00 , C06C7/00 , F42B39/14 , F42D5/04
摘要： An acoustic crystal explosive, which gains its properties from both its periodic structure and its composition, may be configured to suppress or enhance the sensitivity of detonation of the explosive in response to an acoustic wave. An explosive material and a medium (explosive or inactive) are arranged in a periodic array that provides local contrast modulation of the acoustic index to define a band gap in the acoustic transmission spectrum of the explosive materials. At least one defect cavity in the periodic array creates a resonance in the band gap. The defect cavity concentrates energy from an incident acoustic (shock) wave to detonate the explosive. Multiple defect cavities may be configured to provide a desired shaped charge or volumetric detonations. Means may be provided to reprogram the defect cavity(ies) to reconfigure the explosive.
摘要翻译： 从其周期性结构及其组成中获得其性质的声晶体炸药可以被配置为抑制或提高爆炸物响应于声波的爆震的灵敏度。 爆炸性材料和介质（爆炸性或非活性）以周期性阵列布置，其提供声学指数的局部对比度调制以限定爆炸材料的声学透射谱中的带隙。 周期性阵列中的至少一个缺陷腔在带隙中产生共振。 缺陷腔集中来自入射声（冲击）波的能量以引爆炸药。 多个缺陷腔可以被配置成提供期望的成形电荷或体积爆炸。 可以提供装置以重新编程缺陷腔以重新配置炸药。
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公开(公告)号：US4601344A
公开(公告)日：1986-07-22
申请号：US548899
申请日：1983-09-29
申请人： Russell Reed, Jr. , May L. Chan , Kenneth L. Moore
发明人： Russell Reed, Jr. , May L. Chan , Kenneth L. Moore
摘要： A gas generating composition containing glycidyl azide polymer and a high trogen content additive selected from the group consisting of guanylaminotetrazole nitrate, bis(triaminoguanidinium)5,5'azotetrazole, ammonium 5-nitraminotetrazole and high bulk density nitro guanidine generates large quantities of nitrogen gas upon burning and can be used to extinguish fires.
摘要翻译： 含有缩水甘油基叠氮化物聚合物和选自硝基胍氨基四唑，双 燃烧并可用于扑灭火灾。
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公开(公告)号：US4263069A
公开(公告)日：1981-04-21
申请号：US91286
申请日：1979-11-05
CPC分类号： C06B21/0083 , C06B45/22
摘要： Gun propellant is coated with an oligomer having the structure: ##STR1## wherein R is --CH.sub.2 CH.sub.2 CH.sub.2 Si(OCH.sub.3).sub.3 ; wherein ns an integer of from 5 to 50 and wherein m is an integer of from 1 to 5. The purpose of the coating is to decrease the peak pressure produced but make the pressure that is produced last longer.
摘要翻译： 喷枪推进剂涂有具有以下结构的低聚物：其中R是-CH 2 CH 2 CH 2 Si（OCH 3）3; 其中n为5-50的整数，并且其中m为1至5的整数。涂层的目的是降低所产生的峰值压力，但使产生的压力持续更长时间。
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公开(公告)号：US06918885B2
公开(公告)日：2005-07-19
申请号：US10124513
申请日：2002-04-16
申请人： Kenneth L. Moore , Shirley H. Moore
发明人： Kenneth L. Moore , Shirley H. Moore
CPC分类号： A41D13/1245 , A61F5/3746
摘要： An arm sling assembly is disclosed for supporting at least one of the arms of a patient in an angled orientation against the torso. The assembly includes a sleeveless vest dimensioned to be worn on the torso of the patient. The vest is openable at the front to facilitate donning of the assembly. Moreover, attached to the one or both of the front portions of the vest is an arm support cuff. In particular, the support cuff is stitched to the front left or right portion of the vest along vertically spaced upper and lower attachment zones and is detached from the front portion between the zones so as to define an open-sided arm passageway in which the arm is inserted and supported. An alternative embodiment is also disclosed wherein the arm cuff is adjustably and removably attached to the vest at the upper attachment zone. This embodiment further includes a retaining strap that attaches to the back of the vest and encircles the supported arm(s), the arm support cuff(s), and a portion of the torso to securely retain the supported arm(s) against the torso of the patient.
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公开(公告)号：US4277203A
公开(公告)日：1981-07-07
申请号：US139077
申请日：1980-04-10
CPC分类号： C08G18/3256 , C08G18/3234 , C09K17/30
摘要： A method for stabilizing the soil wherein a liquid selected from the grouponsisting of (1) a mixture of dimer diisocyanate and dimer diamine; and (2 ) a mixture of dimer diisocyanate and a ketimine derivative of dimer diamine is applied to the soil and allowed to polymerize to form an elastomeric resin which bonds the soil particles together to form a composite structure.
摘要翻译： 一种稳定土壤的方法，其中选自（1）二聚体二异氰酸酯和二聚二胺的混合物的液体; 并且（2）将二聚体二异氰酸酯和二聚二胺的酮亚胺衍生物的混合物施加到土壤上并使其聚合以形成将土壤颗粒结合在一起以形成复合结构的弹性体树脂。
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9.发明授权Apparatus for determining projectile position and barrel pressure characteristics 失效用于确定弹丸位置和枪管压力特性的装置
公开(公告)号：US4147055A
公开(公告)日：1979-04-03
申请号：US860814
申请日：1977-12-15
摘要： Measurement and correlation of chamber pressure and projectile position d is accomplished using an array of phototransistors, illuminated by collimated light, which phototransistors are sequentially switched off due to the interruption of the collimated light by the passing projectile. Pulses generated thereby may be displayed on an oscilloscope along with the pressure-time trace.
摘要翻译： 腔室压力和射弹位置数据的测量和相关性使用由准直光照射的光电晶体管阵列实现，该光电晶体管由于通过射弹的准直光的中断而被顺序关闭。 由此产生的脉冲可能与压力 - 时间迹线一起显示在示波器上。
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公开(公告)号：US4106906A
公开(公告)日：1978-08-15
申请号：US764135
申请日：1977-01-31
摘要： A continuous polymer film formed by air-activated cross-linking of polyfuional prepolymers is applied to the surface of a body of water for suppressing evaporation.
摘要翻译： 通过多功能预聚物的空气活化交联而形成的连续聚合物膜被施加到水体的表面以抑制蒸发。
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