Hitachi, Ltd.

Jgc Corporation

Hitachi Seibu Soft Ware Co., Ltd.

Tetsuya Watanabe

Hiroshi Nishihara

Makoto Inomata

Takayuki Yokoyama

Hiromichi Ishikawa

Shigeki Nagamatsu

Akira Sugimoto

Takaaki Kondo

Yoshiyuki Yamaguchi

Hisashi Oono

Masaaki Hatano

Jun Abe

The process for desulfurizing a gas oil fraction according to the invention comprises a low-boiling gas oil fraction hydrodesulfurization step (I) wherein a low-boiling gas oil fraction is desulsurized under the condition of a H/Oil ratio of 70 to 200 Nm/kl to obtain a treated oil, a high-boiling gas oil fraction hydrodesulfurization step (II) wherein a high-boiling gas oil fraction is desulsurized under the condition of a HOil ratio of 200 to 800 Nm/kl to obtain a treated oil, and a step (III) wherein the treated oil obtained in the step (I) is mixed with the treated oil obtained in the step (II), and in this process, at least a part of a gas containing unreacted hydrogen in the step (II) is used for the hydrodesulfurization of the step (I).

Method of desulfurizing gas oil fraction, desulfurized gas oil, and desulfurizer for gas oil fraction

A workflow server is provided with, in association with a user management tablefor managing work items for each user, a listof substitute users for indicating a substitute user for each work or process and a listof users in charge who designates the user as a substitute. When a client terminal user selects a specific user among the users in charge on the list, the workflow server checks the power of substitute by referring to the listof substitute users for the selected user, thereby to allow the client terminal user to process a predesignated unprocessed work item instead of the selected user in charge.

Workflow server and workflow system control method

A multiserver workflow system in which each server and the users who use clients construct one subsystem includes: a plurality of servers; a plurality of clients; and a network to which the servers and the clients are connected. All of the servers have address information of the servers constructing all of the subsystems and correspondence information on all of the users and the subsystem which can be used by respective users. When each client connects to any one of the servers, the client downloads a list of the subsystems which can be used by the user who uses the client and addresses of the servers constructing the usable subsystems from the connection server and stores the list as a connectable server list.

Multiserver workflow system

In a distributed system having a plurality of interconnected computer systems each having an application program, a process manager which determines the need for a communication process, determines an identifier of a destination system and a protocol and issues a communication process request in response to a process request for database access from the application program, and a virtual communication user for determining an application context in response to the communication process request from the process manager are provided, and a communication path a protocol machine establishes for the virtual communication user. A plurality of virtual communication users for managing the communication process are provided and each virtual communication user manages a plurality of protocol machines so that a plurality of protocols and application programs are simultaneously used for a plurality of destination systems from one application program.

System for controlling communications between an application and a

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Yokohama, Japan

Tetsuya Watanabe