著者

春田 正行

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.39, no.6, pp.433-440, 2002-06-10 (Released:2010-04-30)

参考文献数

7

著者

村田 博之

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.19, no.5, pp.291-295, 1982-05-10 (Released:2010-04-30)

著者

鈴木 耕太 菅野 了次

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.59, no.5, pp.220-225, 2022-05-10 (Released:2022-06-08)

参考文献数

26

---

In materials chemistry, technology related to data science methods is attracting attention because of their high potential. In this review, we introduce the examples of material search for lithium-ion conductors from classical methods to the use of materials informatics, including our practical examples. Appling informatics technology such as the recommender system, the novel approaches in the composition-based material search were examined. Although some novel materials were discovered, high ionic conducting properties (e.g., σ > 10−4 S cm−1) were not confirmed. As a result, in the case of lithium-ion conducting crystalline materials, dramatic improvements in material search efficiency have not been achieved even if the most advanced methods have been applied so far. Therefore, it is necessary to establish a novel approach for material search by combining the various techniques from classical to advanced methods, including the experimental, theoretical calculation, and informatics approaches.

著者

松岡 由香里 大崎 修司 仲村 英也 綿野 哲

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.58, no.8, pp.414-423, 2021-08-10 (Released:2021-10-13)

参考文献数

26

被引用文献数

4

---

In this study, a neural network (NN) was applied to a continuous manufacturing process of tablets to predict the tablet physical properties based on a twin-screw granulation operating conditions and tableting pressure. The hyperparameters in the NN model were optimized to accurately predict the tablet physical properties. The constructed NN model successfully demonstrated the predictive capability with the R2 of ca. 0.9 in both training and validation. The effects of the granulation operating conditions and the tableting pressure on the tablet physical properties were investigated. It was found that the tableting pressure was the most dominant factor for the tablet hardness and disintegration time. Among the granulation operating conditions, liquid solid ratio had the strongest impact on the tablet physical properties. Focusing on the tableting pressure and liquid solid ratio, the contour maps for the relationships between the operating conditions and the tablet physical properties were obtained by the NN model. It was suggested that the obtained contour maps can be helpful to predict the continuous manufacturing of tablets with the desired tablet physical properties.

著者

遠藤 禎行 向阪 保雄

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.33, no.1, pp.30-36, 1996-01-10 (Released:2010-04-30)

参考文献数

40

被引用文献数

2

著者

二階堂 満 吉田 祐希 古関 健一 福村 卓也 渡邊 崇 戸谷 一英

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.55, no.9, pp.483-491, 2018-09-10 (Released:2018-10-25)

参考文献数

14

被引用文献数

1

---

This study is aimed to develop a beneficial use of disposed seashells. Sanriku region in Iwate prefecture has an issue of disposals of seashells. In this study, we mechanochemically ground seashells under dry or wet conditions. We used a planetary ball mill, a tumbling ball mill, and a converge mill as mechanochemical grinding machine. After the grinding, we examined the heavy metal absorbencies of the ground materials, and of the compounds with seashell-origin hydroxyapatite (HAP). As a result, followings were found out: 1) When seashell-origin hydroxyapatite was used, it showed adequate heavy metal absorbency (Cd, Pb). 2) When mechanochemically ground scallop seashells without HAP were used, it showed adequate heavy metal absorbency (Cd, Pb). 3) When the scallop seashells are ground for long time under dry condition (mechanochemical grinding), the material tends to be amorphous, and its heavy metal absorbency becomes greater.

著者

三輪 茂雄

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.35, no.8, pp.595-602, 1998-08-10 (Released:2010-04-30)

参考文献数

14

著者

吉野 彰

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.49, no.1, 2012-01-10

著者

青野 昌司 青山 三樹男 池川 昭子 池森 亀鶴 上田 康 臼井 一男 川北 公夫 小浜 弘幸 水渡 英二 鶴林 一夫 早川 宗八郎 加藤 悦三

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.18, no.2, pp.79-94, 1981-02-10 (Released:2010-04-30)

著者

林 大和

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.56, no.7, pp.409-416, 2019-07-10 (Released:2019-08-06)

参考文献数

15

被引用文献数

1

---

Many innovative processing of metal nanoparticle related material were developed by ultrasound and microwave reactor in solid-liquid system. Ultrasound and microwave reactor not only enhanced chemical reaction but also created novel chemical reaction. Metal oxide was used as eco-metal source in our processing. Solid-liquid (metal oxide–ethanol) system will be high concentration and high throughput processing. Realization of innovative nanomaterial fabrication enabled joining environment, low cost and high throughput by combining these reactor and metal oxide, solid-liquid system. This commentary explained reactor and nanomaterial processing problems and introduced the example of some metal nanoparticles related material processing by synergistic effects of solid-liquid system and ultrasound, microwave reactor.

著者

奥山 喜久夫 I. Wuled LENGGORO

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.37, no.10, pp.753-760, 2000-10-10 (Released:2010-04-30)

参考文献数

28

被引用文献数

6 5

著者

林 弘祐 笠野 俊彦 須原 清治

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.18, no.1, pp.3-10, 1981-01-10 (Released:2010-04-30)

参考文献数

8

---

The effect of the addition of light anhydrous silicic acid to potato starch powdes, which improves the lubricating characteristics of drug powders, is usually cancelled by the absorption of moisture. In order to improve this point, hydrophobic light anhydrous silicic acid was used, and prevention of the loss of the lubricating effect by moisture sorption was examined.1) Moisture sorption of the mixture of dry starch and silicic acid (0.1%) results in the increase of the apparent specific volume and angle of repose, and decrease of dispersibility, with the increase in water content. The resultant mixture shows powder characteristics close to that of starch, that is the lubricating effect of light anhydrous silicic acid is lost. When 0.1% hydrophobic silicic acid is added, its effect was almost the same as when added to moistened starch, and the lubricating effect of hydrophobic silicic acid was not lost due to moisture sorption by starch.2)Examination of such mixtures by a scanning electron microscope revealed that ordinary light anhydrous silicic acid stuck to starch granules that looked like the moistened thin paper to be stuck when light anhydrous silicic acid experienced moisture sorption, and light anhydrous silicic acid could not prevent the contact of the starch granules. This resulted in the reappearance of powder characteristics in starch itself. In the case of hydrophobic light anhydrous silicic acid, the particles do not stick to or fall from starch granules even after moisture sorption and remain attached sterically to the starch granules the same as after their addition, and prevent the contact of starch granules themselves. This is considered to be one of the reasons why hydrophobic light anhydrous silicic acid does not lose its lubricating effect.

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.44, no.11, pp.823-824, 2007-11-10 (Released:2010-04-30)

著者

福居 篤子

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.45, no.7, pp.522-523, 2008

著者

徳本 勇人 野村 俊之 星 英之 新居 靖崇 大谷 俊晴 野本 健太

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.54, no.3, pp.172-177, 2017-03-10 (Released:2017-04-22)

参考文献数

17

---

Particles of additives that are ingested along with food can either adhere to the intestinal microflora or be absorbed, and these may possibly lead to illnesses caused by changes in the microflora composition. Barely 1% of Fe2O3 particles dissolve in acids present in the stomach. In addition, the direct administration of Fe2O3 particles into the stomach with a probe showed no adverse health effects. However, mixing Fe2O3 particles of a smaller diameter into food and orally administering the dose over a period of more than 2 weeks encouraged the multiplication of the diarrhea-causing Clostridium family amongst intestinal flora, indicating the cause of the diarrhea outbreak. On the other hand, multiplication of the Clostridium species was suppressed by the multiplication of another family within the intestinal flora, namely Lactobacillus. It was confirmed that by analyzing the formation of fermentation products such as hydrogen, acetic acid, and lactic acid, symptoms of diarrhea caused by the alteration of intestinal microflora composition spontaneously recovered.

著者

山本 ひとみ 戸塚 裕一 内田 実 竹内 洋文

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.47, no.6, pp.388-393, 2010-06-10 (Released:2010-06-15)

参考文献数

7

被引用文献数

1 3

---

The lubricant property of sucrose esters of fatty acids (SEs) having different particle size and Hydrophile-Lipophile Balance (HLB) was evaluated with a model formulation in tableting. The binding tendency of the model formulation composed of isomalt powder was depressed by adding SEs in the formulation. Tablets containing SE showed faster disintegration time compared to those containing magnesium stearate or calcium stearate, while the tablets containing SEs indicated a high tensile strength. Milled SE (S-370F) exhibited better tablet properties than original SE (S-370). The SEs having different HLB showed different effects on the resultant tablet properties such as the magnitude of tensile strength, disintegration time, and spreading properties. The relatively hydrophilic SE was found to much improve the resultant disintegrating properties of tablet compared to magnesium stearate, calcium stearate and hydrophobic SEs. Consequently, SEs are able to use as lubricants on tablet formulation by appropriately controlling its particle size, content, and HLB.

著者

冬木 正 山田 幸良 井伊谷 鋼一

出版者

The Society of Powder Technology, Japan

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.30, no.7, pp.490-495, 1993-07-10 (Released:2010-04-30)

参考文献数

4

被引用文献数

1

---

Free vortex cyclones are used in various industrial fields because of their simple structure, low equipment investment, easy maintenance and low running cost. Recent studies have improved their performances. A broad range of applications of free vortex cyclones are expected for industrial and especially high temparature dust collections. However, there are still many phenomena that need to be made clearly.In this study, the performances of free vortex cyclones as dust collectors have been experimentally studied under various operating conditions using several types of cyclones and with several kinds of wall surface roughness. It was found that the addition of a little friction resistance to a cyclone's cylindrical wall is desirable to reduce pressure loss without reducing collection efficiency. On the other hand, a special type of cyclone is capable of better performance than that of the normal type. Its pressure loss is lower, and its collection efficiency is slightly higher than the normal type. A cylindrical type has a performace similar to a normal one, but a conical type is inferior. A slightly eccentric exit pipe does not have much effect on the cyclone's performance.

著者

臼井 進之助

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.24, no.12, pp.798-804, 1987-12-10 (Released:2010-04-30)

参考文献数

14

被引用文献数

1

著者

石田 尚之 松坂 修二

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.55, no.2, pp.104-112, 2018-02-10 (Released:2018-03-20)

参考文献数

38

---

???

著者

田中 秀和 中林 祐治 新居 正浩 石川 達雄 中山 武典

出版者

一般社団法人 粉体工学会

雑誌

粉体工学会誌 (ISSN:03866157)

巻号頁・発行日

vol.55, no.5, pp.269-274, 2018-05-10 (Released:2018-07-10)

参考文献数

29

---

In order to simulate the atmospheric corrosion of tannic acid-coated steels in industrial and coastal districts, artificial steel rust particles of α- and β-FeOOH were synthesized by aerial oxidation of aqueous Fe2+ solutions containing various amounts of tannic acid. Increasing addition amount of tannic acid accelerates the formation of amorphous iron-gallic acid complexes to suppress the generation of FeOOH rust. The crystallization and growth of α-FeOOH particles were inhibited by adding tannic acid, while those of β-FeOOH particles are markedly dependent of addition amount of tannic acid. Accordingly, it can be regarded that the tannic acid eluted from tannic acid-coated steels by atmospheric corrosion strongly affects on the formation of α- and β-FeOOH rust and the effect in coastal area is greater than urban district.