Abstract: A vehicle air conditioning device is disclosed. The air condition device includes an air conditioning case having a passage in which air flows, a blower connected to the air conditioning case for blowing the air, a cooler and a heater housed in an interior of the air conditioning case, and a duct provided in the air conditioning case for conveying the air that has been temperature controlled by the cooler and the heater. The passage includes a cool air passage in which the cooler is disposed, a warm air passage in which the heater is disposed, and an introduction passage provided between the cool air passage and the warm air. A switching door is provided in the introduction passage for controlling an amount of the air flowing to the cool air passage and the warm air passage.

Abstract: An ultrasonic probe (1) sends out ultrasound waves to a steel sheet (100) obliquely at a plurality of angles, using transmission signals provided from a transmission signal processing unit (3a). In addition, the ultrasonic probe (1) receives echoes corresponding to the plurality of angles from the steel sheet (100). A reception signal processing unit (3b) determines amplitudes of the echoes received by the ultrasonic probe (1) and corresponding to the plurality of angles, and periods of time from when the ultrasound waves are sent out until the echoes are received, as reception times, and identifies a location of a flaw (101) in the steel sheet (100) from the reception times and a ratio between the amplitudes.

Abstract: An ultrasonic probe (1) sends out ultrasound waves to a steel sheet (100) obliquely at a plurality of angles, using transmission signals provided from a transmission signal processing unit (3a). In addition, the ultrasonic probe (1) receives echoes corresponding to the plurality of angles from the steel sheet (100). A reception signal processing unit (3b) determines amplitudes of the echoes received by the ultrasonic probe (1) and corresponding to the plurality of angles, and periods of time from when the ultrasound waves are sent out until the echoes are received, as reception times, and identifies a location of a flaw (101) in the steel sheet (100) from the reception times and a ratio between the amplitudes.

Abstract: A plurality of ground-tint patterns are prepared. A ground-tint pattern adding unit adds a ground-tint data to a printing data to be output to a printer. The ground-tint data includes a copy-suppression pattern that is prepared by combining optically readable copy-surviving patterns with optically difficult-to-read copy-extinctive pattern and are manifested in reproductions. The ground-tint pattern adding unit changes the copy-suppression pattern in the ground-tint data to be added to the printing data with time.

Abstract: A plurality of ground-tint patterns are prepared. A ground-tint pattern adding unit adds a ground-tint data to a printing data to be output to a printer. The ground-tint data includes a copy-suppression pattern that is prepared by combining optically readable copy-surviving patterns with optically difficult-to-read copy-extinctive pattern and are manifested in reproductions. The ground-tint pattern adding unit changes the copy-suppression pattern in the ground-tint data to be added to the printing data with time.

Abstract: Toner for developing an electrostatic charge image comprises: polyethylene wax having a value (Mw/Mn) of weight average molecular weight/number average molecular weight which is larger than 1.5, melt viscosity lower than 10 mPa•s at 140° C., and degree of crystallinity lower than 90%.

Abstract: A photosensitive element for electrophotography has an electrically conductive substrate and a layer structure thereon comprising a charge generating substance and a charge transport substance. An improved charge transport substance is a derivative of triphenylamine in which at least 80% of the electrons in the highest occupied molecular orbital are located on the triphenylamine skeleton. Examples of such compounds have the following formula: ##STR1## wherein X is a an optionally substituted heterocyclic radical containing at least one ring nitrogen, Q is a single bond or --C.dbd.C--, and Z.sub.1, Z.sub.2 and Z.sub.3 are H, lower alkyl or alkoxy, aryl, NO.sub.2, CF.sub.3, --N(R').sub.2, --S--C.sub.6 H.sub.5 or --S(R').sub.2.

Abstract: An image forming system includes an image processor, a print engine, optional units, and a serial signal line. The print engine includes a device managing a variety of information including data relating to its own status and data relating to status of the otpional units. The variety of information are represented by corresponding codes based on total status of the image forming means and the optional units. Each of the optional units includes a device for managing the aforementioned data relating to its own status, and a device for sending the print engine the data relating to its own status.

Abstract: An electrophotographic photosensitive material having a long lifetime can be provided by forming an amorphous silicon layer having a thickness of 0.01-0.08 .mu.m on the photoconductive layer on the electrically conductive substrate in the said material without changing the characteristics of the photoconductive layer.

Abstract: In an electrophotographic plate comprising a substrate and a photoconductive layer formed on said substrate, when said substrate is made of an age-hardening type aluminum alloy and has a Vickers hardness of 60 Hv or higher, there can be produced electrophotographic plates high in dimensional accuracy, good in resistance to mechanical damages and impact, and very small in eccentricity when molded in the form of a drum. When the surface hardness of the selenium photoconductive layer is made 5 H or harder in pencil hardness, the resulting electrophotographic plate is excellent in printing performance and has a long life.

Abstract: A light source is disclosed which can be used in atomic absorption analysis using the Zeeman effect. In operation, an external magnetic field is applied to the hollow cathode of the light source to cause the Zeeman-splitting of an emission line from the cathode material. The hollow cathode is made of a ferromagnetic metal as which is the element of interest for analysis and a metal for reducing the magnetic shield of the externally applied magnetic field by the ferromagnetic metal so that the external magnetic field effectively acts on the hollow portion of the cathode to provide the desired Zeeman-splitting. The hollow cathode is designed such that the product of the saturation flux densities of the cathode materials and the volume thereof is equal to or smaller than 0.2(Wb.multidot.m).times.10.sup.-6. The emission line from the cathode material is produced by excitation from a high frequency power supply, the power supply being connected to the cathode and the anode of the light source.