Low temperature annealing of the ultrasonic attenuation in prestrained lif after co60 gamma irradiation at liquid nitrogen temperature

Ultrasonic pulse study of lithium fluorid

Flexible substrate for printed wiring

A very flexible substrate for printed wiring is disclosed which is composed of a blend of phenoxy resin-polyisocyanate-brominated epoxy resin in which the equivalent ration of the functional groups is hydroxyl grouped: isocyanate group: epoxy group = 1:0.2 to 2:0.5 to 3. The product has outstanding solder resistance and is applied to metal without using adhesives

Flexible composite film for printed circuit board

A flexible printed circuit for a printed circuit board in which layers of reaction product composed of a combination of phenoxy resin - polyisocyanate - brominated epoxy resin, and in which the equivalent ratio of those functional groups is hydroxyl group: isocyanate group: epoxy group - 1 : 0.2 to 2 : 0.5 to 3 are laminated on at least one side of saturated polyester film is discussed

Phase Field Model for Dynamics of Sweeping Interface

Motivated by the drying pattern experiment by Yamazaki and Mizuguchi[J. Phys. Soc. Jpn. {\bf 69} (2000) 2387], we propose the dynamics of sweeping interface, in which material distributed over a region is swept by a moving interface. A model based on a phase field is constructed and results of numerical simulations are presented for one and two dimensions. Relevance of the present model to the drying experiment is discussed.Comment: 4 pages, 7 figure

ON THE JAPANESE SPECIES OF VICARYA

1. The genus Vicarya was established by D\u27ARCHIAC and HAIME upon Nerinea? verneuili D\u27ARCHIAC, a Miocene species from India.2. Discussions as to the generic value of Vicarya and as to its generic position have been given by K. MARTIN, W. H. DALL, W. D. SMITH, K. A. V. ZITTEL and recently by T. TAKEYAMA. Its position is now placed in the Potamidinae.3. The following forms are now considered as valid in the genus Vicarya, namely, ecocenica, verneuili, callosa, callosa japonica, callosa martini, callosa yokoyamai, yatuoensis and probably callosa semperi.4. Vicarya is a genus having species restricted in geographical distribution to the Far East, and ranging in time from the Eocene to Miocene, being best developed in the Lower or Middle Miocene, a time prior to its extinction which may be Upper Miocene, according to the usage of the term.5. In the Japanese Miocene are found the following forms, namely, callosa japonica, callosa yokoyamai, callosa martini and yatuoensis ; all are restricted to the Middle Miocene of Japan, and play an important role in the geological history and stratigraphical relationships of geographically isolated geological formations.6. The manuscript genus Vicaryella of T. TAKEYAMA is here defined and thus made valid ; the following species are now found to belong here, namely, tyosenica the genotype, nipponica, bacula and probably ishiiana.7. The habitat of both Vicarya and Vicaryella was one of brackish-water, at very shallow depths such as at the tidal zone, of warm water and particular nature.8. From the associated faunules of both Vicarya and Vicaryella, it is found that their stratigraphical importance is nearly equal.9. Keys to the species of both genera have been given in order to faciliate workers along this line.10. Descriptions and figures of all known species of both genera are given

Relationships between a roller and a dynamic pressure distribution in circular hydraulic jumps

We investigated numerically the relation between a roller and the pressure distribution to clarify the dynamics of the roller in circular hydraulic jumps. We found that a roller which characterizes a type II jump is associated with two high pressure regions after the jump, while a type I jump (without the roller) is associated with only one high pressure region. Our numerical results show that building up an appropriate pressure field is essential for a roller.Comment: 10 pages, 7 PS files. To appear in PR

Primary Primitive Neuroectodermal Tumor of the Conus Medullaris in an Elderly Patient: A Case Report and Review of the Literature

Primary spinal primitive neuroectodermal tumors (PNETs) are very rare conditions. Most of these tumors occur in children and young adults. A 63-year-old man with a primary spinal PNET in the conus medullaris from the L1 to L2 level is presented in this report. The optimal treatment of primary spinal PNETs is yet unknown. Surgical resection, radiation therapy, and chemotherapy have been advocated for the treatment of spinal PNET based on PNETs at other sites. However, the outcome is very poor. There are a few reports of cases with long-term survival and no recurrence. In these patients, en bloc resections were performed