公开(公告)号：US10078120B2

公开(公告)日：2018-09-18

申请号：US15112661

申请日：2015-01-20

Applicant: Doty Scientific, Inc.

Inventor： David Doty

IPC: G01V3/00 ,  G01R33/28 ,  G01R33/38

CPC classification number: G01R33/282 ,  G01R33/38

Abstract: A tunable millimeter-wave (mmw) DNP probe head is disclosed that is compatible with efficient H/X/Y/e− DNP in samples that may have volume large compared to λ03, where λ0 is the free-space wavelength at the frequency fe of the electron paramagnetic resonance (EPR) when placed in an external polarizing field B0, where B0 is typically in the range of 6.5 T to 35 T, corresponding to fe in the range of 180-1000 GHz, and corresponding to proton resonance frequency fH in the range of 280 MHz to 1500 MHz. The probe head comprises a tune cavity of adjustable volume, a sample cavity that is large compared to the sample wavelength, a tapered conical feed transition filled with a high dielectric material at the small end, and a selectively reflective wall that is substantially reflective of electromagnetic radiation at fe but substantially transparent to electromagnetic radiation at fH.

公开(公告)号：US09062904B2

公开(公告)日：2015-06-23

申请号：US14239094

申请日：2013-09-10

Applicant: Doty Scientific, Inc.

Inventor： F David Doty

IPC: F25B19/00 ,  F17C13/00 ,  F25D3/10 ,  F25J1/00 ,  F25J1/02 ,  F17C7/04 ,  F17D1/04 ,  F17D1/08 ,  G01R33/31

CPC classification number: F25D3/10 ,  F17C1/00 ,  F17C7/04 ,  F17C13/00 ,  F17C2270/0509 ,  F17D1/04 ,  F17D1/082 ,  F25J1/0015 ,  F25J1/0072 ,  F25J1/0257 ,  F25J1/0276 ,  G01R33/31 ,  Y10T137/6579

Abstract: An improved method of supplying pressurized cold gas consistently of predominately N2 and He at low flow rate (typically under 1 g/s) with a desired N2 liquid fraction to an instrument requiring such is disclosed. Pressurized ultra-dry nitrogen gas of a controlled mass-flow rate is cooled inside fine coils bathed in liquid nitrogen to condense it to a vapor fraction less than about 20% and typically under 3%. A second gas stream consisting of predominately nitrogen plus helium, supplied from a controlled pressure, is cooled in a separate set of coils to an exit mean temperature significantly above the temperature of saturated nitrogen vapor in this mixture. The fluid from the first (condensed) mixture is injected into the cooled gas from the second mixture and transferred through a thermally insulated line to the input of the instrument needing a supply of cold gas of a target vapor fraction.

Abstract translation: 公开了一种将需要N2的液体部分以低流量（通常为1g / s以下）主要以N2和He供给的加压冷气的改进方法。 在液氮中沐浴的精细线圈内冷却具有受控质量流量的加压超干燥氮气，以将其冷凝至小于约20％，通常低于3％的蒸汽馏分。 由受控压力提供的主要由氮气和氦气组成的第二气流在单独的一组线圈中冷却至明显高于该混合物中饱和氮气温度的出口平均温度。 将来自第一（冷凝）混合物的流体从第二混合物注入冷却的气体中，并通过绝热线路输送到需要供应目标蒸气馏分的冷气体的仪器的输入端。

公开(公告)号：US20140216080A1

公开(公告)日：2014-08-07

申请号：US14239094

申请日：2013-09-10

Applicant: Doty Scientific, Inc.

Inventor： F David Doty

IPC: F25D3/10 ,  F17D1/08 ,  G01R33/31 ,  F17D1/04

CPC classification number: F25D3/10 ,  F17C1/00 ,  F17C7/04 ,  F17C13/00 ,  F17C2270/0509 ,  F17D1/04 ,  F17D1/082 ,  F25J1/0015 ,  F25J1/0072 ,  F25J1/0257 ,  F25J1/0276 ,  G01R33/31 ,  Y10T137/6579

Abstract: An improved method of supplying pressurized cold gas consistently of predominately N2 and He at low flow rate (typically under 1 g/s) with a desired N2 liquid fraction to an instrument requiring such is disclosed. Pressurized ultra-dry nitrogen gas of a controlled mass-flow rate is cooled inside fine coils bathed in liquid nitrogen to condense it to a vapor fraction less than about 20% and typically under 3%. A second gas stream consisting of predominately nitrogen plus helium, supplied from a controlled pressure, is cooled in a separate set of coils to an exit mean temperature significantly above the temperature of saturated nitrogen vapor in this mixture. The fluid from the first (condensed) mixture is injected into the cooled gas from the second mixture and transferred through a thermally insulated line to the input of the instrument needing a supply of cold gas of a target vapor fraction.

Abstract translation: 公开了一种将需要N2的液体部分以低流量（通常为1g / s以下）主要以N2和He供给的加压冷气的改进方法。 在液氮中沐浴的精细线圈内冷却具有受控质量流量的加压超干燥氮气，以将其冷凝至小于约20％，通常低于3％的蒸汽馏分。 由受控压力提供的主要由氮和氦组成的第二气流在单独的一组线圈中冷却至出口平均温度，明显高于该混合物中的饱和氮气温度。 将来自第一（冷凝）混合物的流体从第二混合物注入冷却的气体中，并通过绝热线路输送到需要供应目标蒸气馏分的冷气体的仪器的输入端。

公开(公告)号：US20250128793A1

公开(公告)日：2025-04-24

申请号：US18685759

申请日：2022-10-23

Applicant: Doty Scientific, Inc.

Inventor： F David Doty ,  Glenn N Doty

IPC: B63B35/00 ,  A01G15/00 ,  B01F33/502

Abstract: A large nuclear-powered ship, such as a repurposed aircraft carrier or a large cargo ship, is outfitted with a plurality of large downward-directed subsurface mixer propellers secured on its sides and/or ends. The propellers are positioned below the bottom of the ship and have blade lengths in the range of 10-60 m. They are coupled to the ship's steam turbines by drive shafts and gearing compatible with the required propeller power and rotational rates, typically 25-150 MW per mixer propeller and with blade tip speeds typically around 40 m/s. They produce a large-diameter low-velocity downward plume of surface sea waters below the ship that induces upwelling of cold nutrient-rich deep waters in areas where the cyclone genesis index is high. The downward mass-flow magnitude (typically 3-30 times the flow rate over Niagara Falls, but at only a few m/s) is on the scale needed for a small number of such ships to essentially end cyclone genesis in the Atlantic. At the same time, the induced upwelling of nutrient-rich deep waters is expected to lead to the newly mixed areas becoming highly productive fishing areas.

公开(公告)号：US20160334476A1

公开(公告)日：2016-11-17

申请号：US15112661

申请日：2015-01-20

Applicant: DOTY SCIENTIFIC, INC.

Inventor： David Doty

IPC: G01R33/28 ,  G01R33/38

CPC classification number: G01R33/282 ,  G01R33/38

Abstract: A tunable millimeter-wave (mmw) DNP probe head is disclosed that is compatible with efficient H/X/Y/e− DNP in samples that may have volume large compared to λ03, where λ0 is the free-space wavelength at the frequency fe of the electron paramagnetic resonance (EPR) when placed in an external polarizing field B0, where B0 is typically in the range of 6.5 T to 35 T, corresponding to fe in the range of 180-1000 GHz, and corresponding to proton resonance frequency fH in the range of 280 MHz to 1500 MHz. The probe head comprises a tune cavity of adjustable volume, a sample cavity that is large compared to the sample wavelength, a tapered conical feed transition filled with a high dielectric material at the small end, and a selectively reflective wall that is substantially reflective of electromagnetic radiation at fe but substantially transparent to electromagnetic radiation at fH.

Abstract translation: 公开了可调谐毫米波（mmw）DNP探针头，其与λ03相比可能具有体积大的样品中的有效H / X / Y / e-DNP兼容，其中λ0是频率fe的自由空间波长 的电子顺磁共振（EPR）放置在外部偏振场B0中，其中B0通常在6.5T至35T的范围内，对应于在180-1000GHz的范围内的fe，并且对应于质子谐振频率fH 在280MHz至1500MHz的范围内。 探头包括可调节体积的调谐空腔，与样品波长相比较大的样品腔，在小端填充有高电介质材料的锥形进给转变，以及基本反射电磁的选择性反射壁 在fH处的辐射，但在fH处的电磁辐射基本透明。

公开(公告)号：US11978943B2

公开(公告)日：2024-05-07

申请号：US18259077

申请日：2023-02-22

Applicant: Doty Scientific, Inc.

Inventor： F David Doty

IPC: H01P3/12 ,  H01P3/127 ,  H01P3/14 ,  H01P3/16 ,  H01P11/00

CPC classification number: H01P3/122 ,  H01P3/127 ,  H01P3/14 ,  H01P3/165 ,  H01P11/002 ,  H01P11/006

Abstract: An overmoded dielectric-lined waveguide, particularly for the 0.03 to 3 terahertz frequency range, is disclosed with performance advantages relative to prior dielectric-lined waveguides, cost and size advantages relative to corrugated waveguides, and with coupling, bandwidth, and cost advantages relative to micro-structured-fiber waveguides. The waveguide comprises a single-clad flexible microwave laminate rolled into a cylinder with said copper surface on an outside of said guide tube and said dielectric surface on an inside of said guide tube. The rolled laminate is supported inside a metal tube. The same method of achieving the structure needed for efficient guiding of HE11 mode may be applied to a conical tube to make a low-cost efficient overmoded tapered waveguide transition for the 0.03-3 THz range.

公开(公告)号：US20230402731A1

公开(公告)日：2023-12-14

申请号：US18259077

申请日：2023-02-22

Applicant: Doty Scientific, Inc.

Inventor： F David Doty

IPC: H01P3/16 ,  H01P11/00 ,  H01P3/127

CPC classification number: H01P3/165 ,  H01P11/006 ,  H01P3/127 ,  H01P11/002

Abstract: An overmoded dielectric-lined waveguide, particularly for the 0.03 to 3 terahertz frequency range, is disclosed with performance advantages relative to prior dielectric-lined waveguides, cost and size advantages relative to corrugated waveguides, and with coupling, bandwidth, and cost advantages relative to micro-structured-fiber waveguides. It comprises a single-clad flexible microwave laminate rolled into a cylinder with its copper surface outward and its dielectric surface facing inward. The rolled laminate is supported inside a metal tube. The same method of achieving the structure needed for efficient guiding of HE11 mode may be applied to a conical tube to make a low-cost efficient overmoded tapered waveguide transition for the 0.03-3 THz range.

公开(公告)号：US20130034478A1

公开(公告)日：2013-02-07

申请号：US13650578

申请日：2012-10-12

Applicant: Doty Scientific, Inc.

Inventor： F David Doty

IPC: B01J8/06

CPC classification number: C25B1/12 ,  C01B3/02 ,  C01B3/36 ,  C01B3/506 ,  C01B3/52 ,  C01B13/02 ,  C01B2203/025 ,  C01B2203/0415 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/048 ,  C01B2203/0495 ,  C01B2203/062 ,  C01B2203/84 ,  C10G2/30 ,  C10G2300/1025 ,  C10G2300/4081 ,  Y02E60/366 ,  Y02E70/10 ,  Y02P20/129 ,  Y02P20/133 ,  Y02P20/146 ,  Y02P20/582

Abstract: A Renewable Fischer Tropsch Synthesis (RFTS) process is disclosed for producing hydrocarbons and alcohol fuels from wind energy, waste CO2 and water. The process includes (A) electrolyzing water to generate hydrogen and oxygen, (B) generating syngas in a reverse water gas shift (RWGS) reactor, (C) driving the RWGS reaction to the right by condensing water from the RWGS products and separating CO using a CuAlCl4-aromatic complexing method, (D) using a compressor with variable stator nozzles, (E) carrying out the FTS reactions in a high-temperature multi-tubular reactor, (F) separating the FTS products using high-pressure fractional condensation, (G) separating CO2 from product streams for recycling through the RWGS reactor, and (H) using control methods to maintain the temperatures of the reactors, electrolyzer, and condensers at optima that are functions of the flow rate. The RFTS process may also include heat engines, a refrigeration cycle utilizing compressed oxygen, and a dual-source organic Rankine cycle.

Abstract translation: 公开了可再生费托合成（RFTS）方法，用于从风能，废二氧化碳和水中生产碳氢化合物和醇燃料。 该方法包括（A）电解水以产生氢气和氧气，（B）在反向水煤气变换（RWGS）反应器中产生合成气，（C）通过冷凝来自RWGS产物的水和分离CO 使用CuAlCl4-芳族络合方法，（D）使用具有可变定子喷嘴的压缩机，（E）在高温多管式反应器中进行FTS反应，（F）使用高压分级冷凝分离FTS产物 ，（G）通过RWGS反应器从产物流中分离CO 2以再循环，和（H）使用控制方法将反应器，电解器和冷凝器的温度保持在作为流速函数的最佳状态。 RFTS方法还可以包括热机，利用压缩氧的制冷循环和双源有机朗肯循环。