Abstract: The present invention detects print data areas set in one-block units with white lines as boundaries, calculates division numbers for divisionally driving a line head every areas extending in its main scan direction to thereby output print data when the numbers of dots set every lines in the print data areas exceed the maximum number of printable dots set by a head drive unit, detects maximum division numbers n in the print data areas, sets paper feed velocities V1 through V4 in inverse proportion to the maximum division numbers n respectively, and executes printing in the print data areas set in the one-block units on the condition that the line head is divisionally driven with the maximum division numbers n and paper is fed at the set paper feed velocities V1 through V4. Thus, a reduction in power consumption can be satisfied. Since it is possible to increase a paper feed velocity in proportion as a print data area low in the number of dots in particular, the speeding up of printing can be achieved.

Abstract: The present invention detects print data areas set in one-block units with white lines as boundaries, calculates division numbers for divisionally driving a line head every areas extending in its main scan direction to thereby output print data when the numbers of dots set every lines in the print data areas exceed the maximum number of printable dots set by a head drive unit, detects maximum division numbers n in the print data areas, sets paper feed velocities V1 through V4 in inverse proportion to the maximum division numbers n respectively, and executes printing in the print data areas set in the one-block units on the condition that the line head is divisionally driven with the maximum division numbers n and paper is fed at the set paper feed velocities V1 through V4. Thus, a reduction in power consumption can be satisfied. Since it is possible to increase a paper feed velocity in proportion as a print data area low in the number of dots in particular, the speeding up of printing can be achieved.

Abstract: A catalyst composition suitable for effecting simultaneous hydrodesulphurisation and hydrodemetallisation of sulphur and metals containing feedstocks which shows a high hydrodesulphurisation activity, a high hydrodemetallisation activity, and a long life is disclosed.The catalyst includes: a) a support, at least 90 wt. % of which includes alumina, which alumina has an R value of from 0.08 to 0.30, the R value being defined as the ratio between the integrated intensity of the X-ray diffraction peak at 2 .theta.=32.degree. and the integrated intensity of the X-ray diffraction peak at 2 .theta.=46.degree., b) from 2 to 8 wt. % of a Group VIB metal component, calculated as metal, c) from 0.5 to 2.5 wt. % of a Group VIII metal component, calculated as metal; and d) a pore size distribution as determined by nitrogen adsorption satisfying the following requirements: (i) a pore volume of from 0.5 to 1.

Abstract: A process for hydrotreating a hydrocarbon oil contaminated with suspended solid particles and dissolved metallic compounds, comprising the contacting of the oil at an elevated temperature in the presence of hydrogen with porous inorganic oxide particles having a surface area of 1 m.sup.2 /g or less and a pore volume of at least 0.1 ml/g in pores having a diameter of at least 10 microns.

Abstract: Novel quinolinecarboxylic acid derivatives of the formula: ##STR1## wherein Z is ##STR2## in which R.sup.1 is hydrogen atom, a halogen atom, hydroxy or a lower alkyloxy; R.sup.2 is a halogen atom, hydroxy or a lower alkyloxy; R.sup.3 is a lower alkyl; and R.sup.4 is hydroxy or a di(lower alkyl)amino, and a pharmaceutically acceptable salt thereof, which have excellent antibacterial activities and are useful as an antibacterial agent, a pharmaceutical composition containing the same, and process for preparing the same.

Abstract: Novel quinolinecarboxylic acid derivatives of the formula: ##STR1## wherein Z is ##STR2## or ##STR3## in which R.sup.1 is hydrogen atom, a halogen atom, hydroxy or a lower alkyloxy; R.sup.2 is a halogen atom, hydroxy or a lower alkyloxy; R.sup.3 is a lower alkyl; and R.sup.4 is hydroxy or a di(lower alkyl)amino, and a pharmaceutically acceptable salt thereof, which have excellent antibacterial activities and are useful as an antibacterial agent, a pharmaceutical composition containing the same, and process for preparing the same.

Abstract: Quinolinecarboxylic acid derivatives of the formula ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl are useful intermediates for preparation of antibacterial compounds.

Abstract: A new catalyst, which is Ni-Mo metal loaded on zeolite-alumina carrier, provides efficient hydrotreatment of solvent for coal liquefaction and cracking of high boiling fractions, especially high boiling n-paraffins, whereby undesired accumulation of n-paraffins can be prevented and liquefaction operations can be stably performed over long periods of time.

Abstract: Novel quinolinecarboxylic acid derivatives of the formula: ##STR1## wherein Z is ##STR2## in which R.sup.1 and R.sup.2 are each hydrogen atom or a lower alkyl, R.sup.3 is hydrogen atom, hydroxy or a lower alkyl and R.sup.4 is hydrogen atom, hydroxy, amino, aminomethyl, a (lower alkyl)aminomethyl or a di(lower alkyl)aminomethyl, and a pharmaceutically acceptable salt thereof. The compounds have excellent antibacterial activities and are useful as an antibacterial agent.

Abstract: Novel quinolinecarboxylic derivatives of the formula: ##STR1## wherein Z is ##STR2## in which R.sup.1 is hydrogen atom or a lower alkyl, R.sup.2 is hydrogen atom, hydroxyl or a lower alkyl and R.sup.3 is hydrogen atom, hydroxyl or an amino, and a pharmaceutical salt thereof have excellent antibacterial activities and are useful as an antibacterial agent.

Abstract: Supported catalysts for hydrotreating hydrocarbons comprise (a) at least one member selected from the group consisting of oxides of metals in Groups IV and VIII of the Periodic Table, and (b) at least one organic compound having a mercapto radical or radicals (--SH) selected from the group consisting of mercapto-carboxylic acids, including alkali metal, alkaline earth metal and ammonium salts thereof and esters thereof, bivalent mercaptans, amino-substituted mercaptans, and thiocarboxylic acids. These catalysts can be easily activated by treatment in the presence of hydrogen gas at a temperature in the range from room temperature to 400.degree. C. show higher activity than catalysts activated by conventional methods.

Abstract: Novel quinolinecarboxylic derivatives of the formula: ##STR1## wherein Z is ##STR2## in which R.sup.1 is hydrogen atom or a lower alkyl, R.sup.2 is hydrogen atom, hydroxyl or a lower alkyl and R.sup.3 is hydrogen atom, hydroxyl or an amino, and a pharmaceutical salt thereof have excellent antibacterial activities and are useful as an antibacterial agent.