摘要:
A process for producing spherical inorganic particles which have high flowability, can be incorporated in a high proportion, and are useful as a filler for composite substrates such as printed wiring boards and encapsulating materials. Also provided is a process for producing spherical inorganic particles which have high flowability and can be incorporated in a high proportion and which are useful as a filler for encapsulating materials and give an encapsulating material having high electrical insulating properties. One of the processes for producing spherical inorganic particles comprises: (a1) pulverizing a silicate-containing inorganic material to form a pulverization product; (b1) heating the pulverization product in an atomized state to form the pulverization product into spherical particles; (c1) spraying water over the spherical particles to cool them while maintaining the atomized state of the spherical particles; and (d1) collecting the spherical particles. The other process, which is for producing spherical glass particles, comprises: a pulverization step in which a silicate-containing vitreous material is pulverized to form a pulverization product; an acid treatment step in which the pulverization product is contacted with an acid; and a sphering step in which the pulverization product is heated in a suspended state and formed into spherical particles.
摘要:
A process for producing spherical inorganic particles which have high flowability, can be incorporated in a high proportion, and are useful as a filler for composite substrates such as printed wiring boards and encapsulating materials. Also provided is a process for producing spherical inorganic particles which have high flowability and can be incorporated in a high proportion and which are useful as a filler for encapsulating materials and give an encapsulating material having high electrical insulating properties. One of the processes for producing spherical inorganic particles comprises: (a1) pulverizing a silicate-containing inorganic material to form a pulverization product; (b1) heating the pulverization product in an atomized state to form the pulverization product into spherical particles; (c1) spraying water over the spherical particles to cool them while maintaining the atomized state of the spherical particles; and (d1) collecting the spherical particles. The other process, which is for producing spherical glass particles, comprises: a pulverization step in which a silicate-containing vitreous material is pulverized to form a pulverization product; an acid treatment step in which the pulverization product is contacted with an acid; and a sphering step in which the pulverization product is heated in a suspended state and formed into spherical particles.
摘要:
A drive device having an improved capability of reproducing data is disclosed. If an error occurs during a reproducing operation, reproduction is retried after changing amplitude reference values depending on whether the recording laser power is adequate. This makes it possible for the retrying operation to successfully read data that the previous reproducing operation failed to correctly read owing to an inadequate recording laser power. The determination as to whether the recording laser power is adequate is performed on the basis of the degree of asymmetry of the waveform of a data signal read by head means.
摘要:
To enable a physically rewritable disc to be appropriately used as a write-once type.When the rewritable disc is used in rewritable application, the position where writing of a predetermined data unit (for example, an ECC block) in data is started is set to a first position with respect to a reference position to record or play back the data. In contrast, when the rewritable disc is used in write-once application, the position where writing of the predetermined data unit in the data is started is set to a second position different from first position to record or play back the data. The position where writing of the data is started in the rewritable application is shifted from the position where writing of the data is started in the write-once application to disable rewriting of the data recorded on a rewritable recording medium when the rewritable recording medium for the write-once application is loaded in a recording-playback apparatus that does not assume the use of the rewritable recording medium in the write-once application.
摘要:
A nitrogen-containing thermoelectric material, which has an element composition represented by: AlzGayInxMuRvOsNt (A) or AlzGayInxMuRvDwNm (B) (wherein M represents a transition element; R represents a rare earth element; D represents at least one element selected from elements of the Group IV or II; 0≦z≦0.7, 0≦y≦0.7, 0.2≦x≦1.0, 0≦u≦0.7, 0≦v≦0.05, 0.9≦s+t≦1.7, 0.4≦s≦1.2, 0≦w≦0.2, and 0.9≦m≦1.1; and x+y+z=1), and has an absolute value of a Seebeck coefficient of 40 μV/K or more at a temperature of 100° C. or more. These thermoelectric materials comprise elements having low toxicity, are excellent in a heat resistance, a chemical resistance and the like, and have a high thermoelectric transforming efficiency.
摘要翻译:一种含氮热电材料,其具有由以下公式表示的元素组成:<?in-line-formula description =“In-line formula”end =“lead”→> Al < 在 u> sub> sub> sub> (A)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> 在&lt; x&gt;&gt;&lt;&lt; (B)<?in-line-formula description =“In-line formula”end =“tail”?>(其中M表示过渡元素; R表示稀土元素 ; D表示选自IV或II族元素的至少一种元素; 0 <= z <= 0.7,0 <= y <= 0.7,0.2 <= x <= 1.0,0 <= u <= 0.7,0 <= v <= 0.05,0.9 <= s + t <= 1.7,0.4 <= s <= 1.2,0 <= w <= 0.2和0.9 <= m <= 1.1; x + y + z = 1 ),并且在100℃以上的温度下具有40kV / K以上的塞贝克系数的绝对值。 这些热电材料包含低毒性,耐热性,耐化学性等优异的元件,具有高的热电转换效率。
摘要:
A wiring system is provided. Using the system, a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head for guiding the wire conductor and the substrate such that the wiring head relatively moves along an adhesive layer on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact.
摘要:
The present invention relates to an optical disk device and can be applied to, for example, a reproduction system of a phase-change-type optical disk device handling high density recording in order to improve the detection accuracy of specific patterns, such as a synchronizing pattern, without increasing the redundancy of the format. A specific pattern is detected by using NRZI data D1R that is obtained by signal processing of a reproduction signal DRF, and has been NRAI-modulated from pulse-position-modulated data D2R.
摘要:
To enable a physically rewritable disc to be appropriately used as a write-once type. When the rewritable disc is used in rewritable application, the position where writing of a predetermined data unit (for example, an ECC block) in data is started is set to a first position with respect to a reference position to record or play back the data. In contrast, when the rewritable disc is used in write-once application, the position where writing of the predetermined data unit in the data is started is set to a second position different from first position to record or play back the data. The position where writing of the data is started in the rewritable application is shifted from the position where writing of the data is started in the write-once application to disable rewriting of the data recorded on a rewritable recording medium when the rewritable recording medium for the write-once application is loaded in a recording-playback apparatus that does not assume the use of the rewritable recording medium in the write-once application.
摘要:
An ACS of a Viterbi decoder generates status data that an SMU represents a status transition corresponding to the maximum likelihood status transition selected corresponding to each read clock pulse. A merge block generates decoded data corresponding to status data. A timing generator generates timings of a leading edge and a trailing edge of a reproduced RF signal corresponding to status data. A PEC generates a phase error signal PE corresponding to a reproduced signal value sampled at these the timings (namely, sampling values of an A/D converter). With the phase error signal PE, a VCO is controlled. The memory length of the SMU that generates the timings is smaller than the memory length for a decoding process. One of the memory lengths can be selected depending on whether data is reproduced from a header area or a data area.
摘要:
In a Viterbi decoder, an SMU is used instead of a PMU. The SMU has four status memories that process a status data value composed of a plurality of bits that represent a status at a time. The status memories generate a sequence of four status data values. A merge block generates decoded data corresponding to the four status data values, detects mismatches of four status data values, and generates a mismatch detection signal NM. The number of mismatches is counted corresponding to the mismatch detecting signal NM. The quality of decoded data and reproduced signal are evaluated corresponding to the count value.