All issues
Volume 55, Issue 3
Displaying 1-19 of 19 articles from this issue
- |<
- <
- 1
- >
- >|
-
[in Japanese]2001 Volume 55 Issue 3 Pages 273
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (734K) -
2001 Volume 55 Issue 3 Pages 274-277
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSJapanese paper industry has long been making efforts to promote utilization of the recovered paper setting up a target from time to time. In 1995, for example, the industry planned to bring the rate up to 56 percents by the fiscal year 2000. Helped by the environmental awareness among the consumers and industry, the target was achieved in fiscal 1999, one year earier than had been anticipated. Now, the industry drew up a new plan to raise the rate up to 60 percent by the fiscal year 2005 on the assumption that necessary investment be made for the target.View full abstractDownload PDF (548K) -
[in Japanese]2001 Volume 55 Issue 3 Pages 279-290
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (5091K) -
Toward Human Friendly Medical EquipmentsYoshinori Suzuki2001 Volume 55 Issue 3 Pages 291-298,015
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe recent developments of medical equipments, including X-CT (X-ray Computed Tomography) and MRI (Magnetic Resonance Imager) are remarkable. It is not too much to say that the appearance of these new medical equipments made the early diagnosis of diseases possible. However, the existing medical equipments are not sufficient for the early detection and treatments of serious diseases, especially cancer, infarction and senile dementia. A lot of researches on medical equipments have been being made all over the world. This paper shows the present states and future prospects of medical equipments.View full abstractDownload PDF (5721K) -
Hitoshi Hasegawa, Masai Muto2001 Volume 55 Issue 3 Pages 299-303,015
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe unique feature of the Japanese Maglev system is that the vehicles are propelled and levitated using the superconducting magnets on board. The development of this system was started in 1970. In 1977, Japanese National Railways constructed a 7-km test track in Miyazaki prefecture. Many kinds of running tests have been continued these nearly 20 years. after attaining the speed record of 517 km/h in 1979.
As a result of the success on the Miyazaki Test Track. the construction of a longer test line was decided in 1989 and was completed at the end of 1996. The running tests using the first train set of MLX 01 were started in April 1997.View full abstractDownload PDF (2734K) -
Kazuya Nakamura2001 Volume 55 Issue 3 Pages 304-309,016
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSFutatuka mill has installed DCS for about 20 years. Each process is being done by CRT operation. System has been improved due to modification of the plant and maintenance. This time we would like to report regarding the renewal of DCS.View full abstractDownload PDF (2192K) -
Kenji Takahashi2001 Volume 55 Issue 3 Pages 310-316,016
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSIn order to reduce troubles of accidental failures through acceleration of streamlining activities in maintenance sections and appropriate maintenance plans with aiming at improving productivity by stable operation of production facilities at every mill, we have tackled an installation of Computerized Maintenance Management System (CMMS).
With respect to introduction of the CMMS, this article describes the background and the purpose including some of our application.View full abstractDownload PDF (3085K) -
Tomoaki Hamada2001 Volume 55 Issue 3 Pages 317-324,016
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSIn order to improve the problems in our factory working environment such as decrepit equipment, a downward trend in profitability, and ineffectiveness in the teamwork structure, we introduced ‘TPM’ activity in 1986. We have tried to create a maintenance planning system to reduce equipment trouble to a minimum or remove it completely.
Furthermore, we have improved the information management system, because we considered it an important positive step to promote ‘TRY’ activity. We designed and made use of a maintenance management software system to obtain improvements in production efficiency and the stabilization of the equipment in the factory. We report the progress and the utilization examples that we designed and used for our maintenance management software system.View full abstractDownload PDF (4048K) -
An Example and ConsiderationsHiroaki Yoshikawa2001 Volume 55 Issue 3 Pages 325-328,017
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSAiming at improving cost-performance of investment for equipment and efficiency of plant operation. Nippon Steel Corp. has been proposing and realizing integration between Electrical control and Instrumental control for a decade. That type of integration, started with a system supplied by a single vendor (i. e. closed system), is developing to a system with multiple vendors connected to a open control bus link (i. e. open & light-sized system).
In this paper, an application of control bus link between DCS and MCC, using Toshiba CIEMACDS controller for DCS and CCR 21 for MCC linked by TOSLINE-F 10 M, is presented, and some considerations are described.View full abstractDownload PDF (982K) -
Kan-e Kuriyama2001 Volume 55 Issue 3 Pages 329-333,017
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSFoundation Fieldbus (hereinafter, referred to as Fieldbus) is a two-way and all digital communication method. It is expected to be the main communication method for the next generation field networks. In 1996, its first specification was released. Since then, many vendors developed all kinds of compatible devices and the test of corresponding devices has been carried out in a trail plant. In 1999, the Fieldbus systems were actually applied in a good many plants in the world. The application of the fieldbus systems will be greatly widened in the year of 2000.View full abstractDownload PDF (3043K) -
Toshiyuki Takahashi2001 Volume 55 Issue 3 Pages 334-338,018
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe all digital Spot Detector manufactured by Toshiba Engineering Corporation was installed for the No.3 and No.5 paper machine. This system has the various features, for example, all digital processing, equipment special filter for slight low contrast defects. etc. But, on one hand, some problems are secured by reason of the first installation to paper machine.
We report the outline of this system and some problem after installation.View full abstractDownload PDF (2905K) -
Atsushi Hiroshima, [in Japanese]2001 Volume 55 Issue 3 Pages 339-343,018
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe No.8 paper machine of the Shiraoi Mill was installed in 1968. Since then it mainly produces diazo base paper.
In 1998, we remodeled the No.8 paper machine in order to improve the quality of productThe existing headbox was replaced with headbox of the dilution system with which stable BD profile is obtained, and the quality of a product has been improved by it.
However there was a defect of headbox overflow level meter as a trouble related to instrumentation. This report is the improvement example.View full abstractDownload PDF (2562K) -
Takayuki Okayama, Tadashi Kano, Tetsuhisa Oishi2001 Volume 55 Issue 3 Pages 344-349,019
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSISO/TC 6 held the 16 th meeting on September 25-30 in Whistler, Canada. Meetings of two Sub Committees. SC 2 and SC 5 were also held on September 28 and 29, respectively. Fourteen of Working Groups and one Task Force met during the week of the ISO/TC 6 meetings. 61 delegates representing 16 countries attended the meeting of TC 6.
The meeting decided to disband ISO/TC 6/SC 3 and to transfer its present work load to ISO/TC 6. BSI (United Kingdom) gave a notice to relinquish the secretariat of ISO/TC 6/SC 2. ISO/TC 6 was authorized to accept an offer from Sweden to undertake the secretariat of ISO/TC 6/SC 2. The next meeting will be held in Paris in 2002. The 20 th meeting will be held in Tokyo in 2006.View full abstractDownload PDF (1770K) -
Focus on Barium Scale as Well as Calcium, Silicon and Aluminium ScaleKenji Ito, Kenji Mochizuki2001 Volume 55 Issue 3 Pages 350-358,019
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe key aspect of minimizing the descent of quality and productivity in papermaking is to identify the origins of scale and to realize the appropriate treatment. Scale derived from calcium, silicon and aluminium is most commonly reckoned and easily collected. In the present study, we focus our attention on another serious situation of such adherent scale as barium sulfate, of which boil-out treatment by chemicals, either alkalization or acidification, has been found unavailing so far. A promising clue to inhibit the increase of barium scale would be the avoidance of derivation out of aluminium sulfate and sul furic acid. Since SO42- exists in these two sources, an investigation on variation between the two different induction lines was performed.
Here we found that these two induction lines were similar in the developing amount of barium sulfate scale, while the mechanism of each scale film might be different. The induction of barium sulfate on the surface of the walls and the pipes of wet end processes was more in the line of sulfuric acid than of aluminium sulfate. The present results indicate that the restriction of the use of sulfuric acid is one of the relevant approaches to solve the barium scale problems.View full abstractDownload PDF (4388K) -
[in Japanese]2001 Volume 55 Issue 3 Pages 364
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (258K) -
[in Japanese]2001 Volume 55 Issue 3 Pages 365
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (243K) -
Chemical Composition and PulpabilityGuo-xin Xue, Jian-weng Zheng, Yuji Matsumoto, Gyosuke Meshitsuka2001 Volume 55 Issue 3 Pages 366-372,020
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThree species of plantation fast-growing Acacia woods of different ages were subjected to kraft cooking and bleaching by the use of CEH sequence. Chemical composition, and structural features of cell wall components of these Acacias were also characterized. Species of Acacia used in this experiment were Acacia mangium, Acacia auriculiformis, and Acacia crassicarpa. These three Acacias were easily pulped using the conventional kraft process with acceptables pulp yields, i. e. 50% total yield with kappa number of 20. Co-cooking of these Acacias, either as a mixture of different ages of the same species or as a mixture of different species, also showed acceptable results. The pulp could be bleached using conventional CEH bleaching sequence giving brightness greater than 75%. Analytical results indicated that these Acacias have typical chemical characteristics of hardwood without any significant drawback unfavorable for chemical pulping even at the age of three years.View full abstractDownload PDF (1620K) -
Chiaki Nagai2001 Volume 55 Issue 3 Pages 373-380,020
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe bubbling fluidized bed reactor of iron oxide direct causticizing process, which constitutes a main part in the process, was developed. In this process, high-grade iron oxide, whose diameter is 0.2-1.0mm was used as causticizing agent as well as bed material. Concentrated black liquor was fed over the bubbling iron oxide bed by means of spray nozzle at the temperature of 1, 173-1, 273K.Reacted sodium ferrite was hydrolyzed to recover sodium hydroxide and residue iron oxide was recycled. During the reaction in the bed as well as hydrolysis, iron oxide particle was gradually attritted so that the operation of fluidized bed became difficult. Compacting pelletizing of as much as 50% in weight of pulverized iron oxide powder was found to be effective not only for preservation of fluidized bed but for sodium recovery through process simulation as well as 40 hrs' continuous operation of 500 mm sq.bench scale test.View full abstractDownload PDF (2430K) -
[in Japanese]2001 Volume 55 Issue 3 Pages 381-384
Published: March 01, 2001
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (3098K)
- |<
- <
- 1
- >
- >|