摘要:
A process for manufacturing synthetic quartz glass involves feeding a quartz glass-forming raw material to a high-temperature gas zone within a chamber, converting the quartz glass-forming raw material into quartz soot, and forming synthetic quartz glass from the soot. A suspended soot-discharging gas which has been flow-straightened in a suspended soot discharging direction flows through the chamber in the vicinity of the high-temperature gas zone. This process keeps free suspended soot from settling onto the surface of the quartz ingot where fusion and growth take place, thereby preventing the formation of bubbles within the quartz glass under growth.
摘要:
An image display apparatus comprises, in a vacuum container whose inside is kept under vacuum, a fluorescent layer, an electron emission source having a plurality of electron sources, a deflecting electrode to deflect electron beams emitted from the electron emission source, and an ultrafocusing electrode to focus the electron beams and land the focused electron beams on predetermined positions of the fluorescent layer. The ultrafocusing electrode is arranged between the electron emission source and the fluorescent layer while the deflecting electrode is arranged between the electron emission source and the ultrafocusing electrode, so that the fluorescent layer is illuminated by the electron beams. If the landing position of the electron beam is deviated because of errors such as manufacturing errors in assembling the components into the image display apparatus, the deviation is minimized and an image display apparatus with high resolution can be obtained.
摘要:
A semiconductor device includes a first pMISFET region having an Si channel, a second pMISFET region having an Si channel and an nMISFET region having an Si channel. First SiGe layers which apply first compression strain to the Si channel are embedded and formed in the first pMISFET region to sandwich the Si channel thereof and second SiGe layers which apply second compression strain different from the first compression strain to the Si channel are embedded and formed in the second pMISFET region to sandwich the Si channel thereof.
摘要:
A semiconductor device includes a first pMISFET region having an Si channel, a second pMISFET region having an Si channel and an nMISFET region having an Si channel. First SiGe layers which apply first compression strain to the Si channel are embedded and formed in the first pMISFET region to sandwich the Si channel thereof and second SiGe layers which apply second compression strain different from the first compression strain to the Si channel are embedded and formed in the second pMISFET region to sandwich the Si channel thereof.
摘要:
Synthetic quartz glass is produced by feeding a silica-forming raw material gas, hydrogen gas, oxygen gas and a fluorine compound gas from a burner to a reaction zone, flame hydrolyzing the silica-forming raw material gas in the reaction zone to form fine particles of fluorine-containing silica, depositing the silica fine particles on a rotatable substrate in the reaction zone so as to create a fluorine-containing porous silica matrix, and heat vitrifying the porous silica matrix in a fluorine compound gas-containing atmosphere. This process enables the low-cost manufacture of a synthetic quartz glass having a higher and more uniform transmittance to light in the vacuum ultraviolet region than has hitherto been achieved.
摘要:
A plurality of ink droplets are discharged from the same nozzle during one printing cycle so as to perform multiple gray level printing. A group of driving pulses including an initial pulse P1, a first subsequent pulse P2 and a second subsequent pulse P3 in one printing cycle is supplied to an actuator. Time intervals t1, t2 and t3 between pulses are set to satisfy t1≦t2
摘要:
A process for treating a photographic processing waste solution which comprises: placing a polymer precipitate in a lower portion of a tank having a U-shaped treating space which comprises (i) a first partition, (ii) a second partition and (iii) an interconnecting partition for interconnecting the first partition and the second partition in the lower portion of a tank; introducing into the first partition a photographic processing waste solution containing a processing solution having fixing ability which has processed a silver halide photographic material; treating the photographic processing waste solution in the U-shaped treating space in the presence of a polymer having S atom which can coordinate with a metal; and removing the metal in said photographic processing waste solution.
摘要:
A process for treating a photographic waste liquid containing a used processing liquid resulting from a processing step having a bleaching ability or a fixing ability in the processing of a silver halide photographic material which process comprises adding a polymer-complex-forming agent to the waste liquid in an amount in the range of from 0.5 to 4 equivalents to a metal contained in the waste liquid to thereby form a polymer-metal complex and then filtering off the polymer-metal complex with a mono-membrane filter having a pore size of 0.05 to 10 .mu.m to thereby remove the metal. A device for use in practicing the process is also disclosed.
摘要:
A molecular crystal comprising a molecule represented by formula (I) shown below: ##STR1## The crystal has high blue light transmittance and non-linear optical characteristics.
摘要:
An ultrasonic transducer for medical diagnostic examinations which comprises a transducer element having one surface through ultrasonic waves are emitted, an acoustic impedance matcher, and a contact member brought to contact with an object being examined and formed on the one surface of the ultrasonic transducer element. The contact member includes at least a flat plate or an acoustic lens made of a-4-methylpentene-1-base polymer which has high mechanical strength. Transducer arrays and assemblies using such polymer as a member directly contacted with human body are also described.