摘要:
Compositions and methods are provided for stabilizing polypeptide antigens such as amyloid-beta (Aβ) to produce vaccines for oral delivery. One embodiment provides an immunogenic polypeptide complex of Aβ42 and an fragment of receptor for advanced glycation endproducts (RAGE).
摘要:
A power generation system includes first and second turbines. The first turbine including a low-pressure compressor (14) and a high-pressure compressor (16). A combustion chamber (22) combusts compressed oxidant and a fuel stream to generate a hot flue gas (31). The first turbine further includes a high-pressure expander (20) for receiving the flue gas and generating a CO2 rich exhaust gas. A low-pressure expander (22) generates a first final exhaust (52) and electrical energy. A CO2 separation system receives exhaust gas (38) and provides a CO2 lean gas fed to low-pressure expander (22). The second turbine including a compressor section (64) configured to discharge a recycle stream (71) from a high pressure compressor (70) to a second combustion chamber (72) and supply a split stream (84) from a low-pressure compressor (68) to high pressure compressor (16) of the first turbine.
摘要翻译:发电系统包括第一和第二涡轮机。 第一涡轮机包括低压压缩机(14)和高压压缩机(16)。 燃烧室(22)燃烧压缩的氧化剂和燃料流以产生热的烟道气(31)。 第一涡轮进一步包括用于接收烟道气并产生富二氧化碳排气的高压膨胀器(20)。 低压膨胀器(22)产生第一最终排气(52)和电能。 CO 2分离系统接收废气(38)并提供供给低压膨胀器(22)的贫二氧化碳气体。 第二涡轮机包括压缩机部分(64),其构造成将再循环流(71)从高压压缩机(70)排放到第二燃烧室(72)并从低压压缩机(84)供应分流(84) 68)连接到第一涡轮机的高压压缩机(16)。
摘要:
Disclosed herein are systems and methods for reducing power plant CO2 emissions. In one embodiment, a method for reducing emissions in a combustion stream, comprises: combusting a gaseous stream to produce an exhaust stream comprising carbon dioxide, and separating CO2 from the exhaust stream by passing CO2 through a membrane to produce a CO2 product stream and a CO2 lean exhaust stream.
摘要翻译:本文公开了用于减少发电厂CO 2排放的系统和方法。 在一个实施方案中,一种用于减少燃烧流中的排放的方法包括:燃烧气流以产生包含二氧化碳的排气流,并通过使CO 2从排气流中分离出CO 2, 2通过膜以产生CO 2 CO 2产物流和CO 2贫排气流。
摘要:
In one aspect, there is provided a handheld vision tester comprising a display, cursor control, interface port, and camera. The display delivers a series of images making up vision tests to a user who interacts with the vision tests by using the display and cursor control of the handheld vision tester. The camera verifies the user is taking the vision tests. The results of the vision tests are stored in the handheld communication device. The interface port allows for communication of the stored results of the vision tests with external devices. In another aspect, there is provided a calibration system for the handheld vision tester. The calibration system includes a stand to hold the handheld vision tester and a reflective surface substantially parallel to a display of the handheld vision tester.
摘要:
A method of generating energy in a power plant (30) having a gas turbine (29), includes a first step a gas containing air (1) is compressed in a first compressor (2) of the gas turbine (29), a second step the compressed gas (3, 3a, 3b; 5; 7a, 7b) is fed to a combustion process with the addition of fuel (8) in a combustor (23), a third step the hot flue gas (9) from the combustor (23) is expanded in an expander or a turbine (10), driving a generator (18), of the gas turbine (29) while performing work, and a fourth step a partial flow of the expanded flue gas (11) is recirculated to the inlet of the first compressor (2) and admixed with the gas containing air (1). Carbon dioxide (CO2) is separated from the compressed gas (3, 3a, 3b; 5; 7a, 7b) in a CO2 separator (6) before the third step. In such a method, the overall size and energy costs are reduced by virtue of the fact that, to permit increased CO2 concentrations in the CO2 separator (6), not more than about 70% of the carbon dioxide contained in the compressed gas (3, 3a, 3b; 5, 5a, 5b; 7a, 7b) is removed from the compressed gas (3, 3a, 3b; 5, 5a, 5b; 7a, 7b).
摘要:
A handheld vision tester and a method of self-testing vision of a user of the handheld vision tester are provided. The method ensures that a display of the handheld vision tester is within an acceptable distance to eyes of the user. Variations of the acceptable distance are compensated for. The method further displays different shapes, either dynamically or statically, on the display to the user. The method also allows for input to the handheld vision tester by the user in response to the different shapes displayed. Results of the self-test are determined from the inputs to the handheld tester by the user.
摘要:
A handheld vision tester and a method of self-testing vision of a user of the handheld vision tester are provided. The method ensures that a display of the handheld vision tester is within an acceptable distance to eyes of the user. Variations of the acceptable distance are compensated for. The method further displays different shapes, either dynamically or statically, on the display to the user. The method also allows for input to the handheld vision tester by the user in response to the different shapes displayed. Results of the self-test are determined from the inputs to the handheld tester by the user.
摘要:
A power generation system includes at least one turbine system. The turbine system includes a compressor section comprising at least one stage, configured to supply a compressed oxidant and a combustion chamber configured to combust the compressed oxidant and a fuel stream comprising carbon-based fuels and to generate a hot flue gas. The turbine system further includes an expander section having an inlet for receiving the hot flue gas comprising at least two stages. The two stages include a high-pressure expander configured to generate an expanded exhaust gas rich in CO2. The high-pressure expander fluidly coupled to a low-pressure expander configured to generate a final exhaust and electrical energy. A CO2 separation system is fluidly coupled to the high-pressure expander for receiving the expanded exhaust gas from the high-pressure expander and providing a CO2 lean gas that is then fed to the low-pressure expander.
摘要:
Power plants and process for lowering CO2 emissions generally includes extracting a portion of the recirculated CO2-rich flue gas mid-way through the compression pathway of a gas turbine and removing the CO2 in a separation unit. The remaining portion of the CO2 rich flue gas (i.e., the portion of the recirculated flue gas that was not fed to the separation unit) is mixed with fresh air coming from an additional compressor-expander and then fed back to the compression pathway. As a result, flue gas recirculation increases the CO2 concentration within the working fluid, leading to an additional increase in CO2 partial pressure. As the concentration and partial pressure of CO2 is increased, a lower energy penalty is observed to remove the CO2. Moreover, a reduced volume is fed to the CO2 separation unit during operation. Consequently, the size of the separation equipment can be reduced as well as the energy required for the separation process.
摘要:
In one embodiment, a power system comprises: a first compressor unit, a syngas generator in fluid communication with a fuel stream and the first compressor unit, a syngas expander unit configured to directly receive the first syngas stream from the syngas generator, a first steam generator, a water gas shift reactor, and a carbon dioxide removal unit. The first compressor unit is configured to compress an air stream and form a first pressurized stream, while the syngas generator is configured to generate a first syngas stream. The syngas expander is configured to reduce the pressure of the first syngas stream. The first steam generator is configured to cool the second syngas stream. The carbon dioxide removal unit configured to remove carbon dioxide from the converted syngas stream.