摘要:
A phenolic foam is made by foaming and curing a formable phenolic resin composition that comprises a phenolic resin, a blowing agent, an acid catalyst and an inorganic filler. The blowing agent comprises a blend of chlorinated aliphatic hydrocarbon containing 2 to 5 carbon atoms and an aliphatic hydrocarbon containing from 3 to 6 carbon atoms mixed in a ratio of 60/40 to 95/5 parts by weight. The inorganic filler is at least one selected from a metal hydroxide, a metal oxide, a metal carbonate and metal powder. The phenolic foam has a pH of 5 or more and a water uptake less than 1 kg/m2. A phenolic foam with a higher pH value compared with conventional phenolic foam reduces corrosion risk when in contact with metallic materials. The phenolic foam maintains excellent long-term stable thermal insulation performance, low water uptake and fire resistance performance and by using the said blowing agent, does not harm the environment as an ozone or global warming depleting material.
摘要翻译:通过发泡和固化包含酚醛树脂,发泡剂,酸催化剂和无机填料的可成形酚醛树脂组合物来制备酚醛泡沫。 发泡剂包含含有2至5个碳原子的氯代脂族烃和含有3-6个碳原子的脂族烃的混合物,其混合比例为60/40至95/5重量份。 无机填料是选自金属氢氧化物,金属氧化物,金属碳酸盐和金属粉末中的至少一种。 酚醛泡沫体的pH为5以上,吸水量小于1kg / m 2。 与常规酚醛泡沫相比,具有较高pH值的酚醛泡沫体在与金属材料接触时可降低腐蚀风险。 酚醛泡沫塑料具有优异的长期稳定的隔热性能,低吸水性和耐火性能,并且通过使用所述发泡剂,不会对臭氧或全球变暖消耗材料造成危害。
摘要:
A method of protonating a hydrogen molecule includes bringing hydrogen gas into contact with a surface of a solid having a relative dielectric constant of more than 78.
摘要:
An information processing device includes: an accumulating unit for accumulating encoded data obtained by encoding image data; a reading unit for reading out the encoded data in data increments; a determining unit for determining whether or not a parameter indicating the accumulated state of the encoded data at the accumulating unit satisfies a predetermined accumulation condition; a forbidding unit for forbidding readout of encoded data to be read out following encoded data being read out by the reading unit in data increments, which serves as a reference, in the case of the determining unit determining that the parameter satisfies the accumulation condition; and a control unit for controlling the reading unit to omit readout of encoded data of which readout is forbidden by the forbidding unit in data increments, and performing readout of encoded data of which readout is not prohibited by the forbidding unit in data increments.
摘要:
An incombustible wave absorber of the application-on-the-spot type includes a wave absorber body, and a cap attached to the absorber body wherein the absorber body is composed of a board for setting up a wave absorber made of a carbon-containing inorganic short fiber board or organic foam board and has folding portions and/or bonding portions which permit the board to be set up on the spot in the form of a hollow pyramid, wedge, polygon or corrugation, and the board is set up, on the spot, in the form of a hollow pyramid, wedge, polygon or corrugation to provide the absorber body, which is attached to the surfaces of walls, a ceiling or a floor of a field-free chamber.
摘要:
A wide bandwidth color video signal, such as a high definition television (HDTV) signal is recorded on a video disc by timebase expanding the luminance component and timebase compressing the color difference components to a bandwidth substantially equal to the bandwidth of the timebase expanded luminance component. The timebase expanded luminance component and the timebase compressed color difference components are time division multiplexed and separated into plural channels of multiplexed signals, each of which is recorded in a respective track on the video disc. Signals recorded in this format are recovered by reproducing the plural channels of multiplexed luminance and color difference components from respective tracks, demultiplexing the timebase expanded luminance component and the timebase compressed color difference components, timebase compressing the separated luminance component to return it to its conventional timebase, and timebase expanding the separated color difference components to return them to their conventional time base.
摘要:
In an apparatus and method for optically recording on an optical disk a television signal comprised of a color image signal and an audio signal; one horizontal period portion of an original luminance signal and one horizontal period portion of two original color difference signals from a standard television signal are time-base-compressed to generate a time-base-compressed video signal for one horizontal period, the audio signal is digitized and time-base-compressed, and then the time-base-compressed digital audio signal and the time-base-compressed video signal are time-division-multiplexed with each other and recorded on the optical disk.
摘要:
This invention relates to a PWM power converter for switching a plurality of bridge-connected semiconductor switching elements based on PWM signals. As the semiconductor switching elements, elements with a low ON voltage and small conduction loss, and elements with a small switching loss and capable of high-speed switching are combined to improve power conversion efficiency.
摘要:
Disclosed are a receiving apparatus, a receiving method, and a program capable of reliably obtaining predetermined information. In a case where a broadband signal where the same control information is arranged in different frequency bands is received and processed, a frequency where the control information is stably received is detected, and the control information is obtained again using the detected frequency. This frequency detection is performed by detecting a frequency capable of avoiding a no-signal band in a signal array of the broadband signal determined based on the obtained control information and the like. This technology can be applied to a receiving apparatus that receives a signal conforming to a DVB-C2 standard.
摘要:
Provided is a nonaqueous electrolytic solution secondary battery having a high energy density, and a positive electrode and a negative electrode used therefor. The nonaqueous electrolytic solution secondary battery includes a positive electrode and a negative electrode, wherein: the negative electrode contains a negative electrode active material having an initial charge/discharge efficiency of 75% or less when charged and discharged by employing metallic Li as a counter electrode; and the positive electrode contains a metal oxide (X) represented by AxMeOy (wherein A is Na and/or K, Me is Ni and/or Cu, x satisfies 1.9≦x≦2.1, and y satisfies 1.9≦y≦2.1).
摘要:
Provided is a nonaqueous electrolytic solution secondary battery having a high energy density, and a positive electrode and a negative electrode used therefor. The nonaqueous electrolytic solution secondary battery includes a positive electrode and a negative electrode, wherein: the negative electrode contains a negative electrode active material having an initial charge/discharge efficiency of 75% or less when charged and discharged by employing metallic Li as a ocounter electrode; and the positive electrode contains a metal oxide (X) represented by AxMeOy (wherein A is Na and/or K, Me is Ni and/or Cu, x satisfies 1.9≦x≦2.1, and y satisfies 1.9≦y≦2.1).
摘要翻译:提供了具有高能量密度的非水电解液二次电池,以及用于其的正极和负极。 非水电解液二次电池包括正极和负极,其中:负极含有通过使用金属Li作为对置电极进行充放电时,初期充放电效率为75%以下的负极活性物质 ; 正极包含由AxMeOy(其中A为Na和/或K,Me为Ni和/或Cu,x满足1.9 @ x @ 2.1,y满足1.9 @ y @ 2.1)的金属氧化物(X)。