Phosphorus diffusion from a spin-on doped glass (SOD) source during rapid thermal annealing

Limiting thermal exposure time using rapid thermal processing (RTP) has emerged as a promising simplified process for microelectronics applications and for manufacturing of terrestrial solar cells in a continuous way. Especially, rapid thermal diffusion (RTD) of phosphorus from doped oxide films (SOD) was extensively used for the emitter formation purpose but few work concerned the diffusion mechanism.Here we investigate more in details the diffusion kinetics of phosphorus after rapid thermal annealing of P-SOD coated silicon samples. The observed enhanced distribution of phosphorus after RTD is discussed based on the dopant sources and processing conditions. Comparisons between experimental profiles and simulation results using up to date phosphorus diffusion models allow us to discriminate between various possible enhancement mechanisms.     

Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do

Evaporation of fluid at micro and nanometer scale may be used to self-assemble nanometre-sized particles in suspension. Evaporating process can be used to gently control flow in micro and nanofluidics, thus providing a potential mean to design a fine pattern onto a surface or to functionalize a nanoprobe tip. In this paper, we present an original experimental approach to explore this open and rather virgin domain. We use an oscillating tip at an air liquid interface with a controlled dipping depth of the tip within the range of the micrometer. Also, very small dipping depths of a few ten nanometers were achieved with multi walls carbon nanotubes glued at the tip apex. The liquid is an aqueous solution of functionalized nanoparticles diluted in water. Evaporation of water is the driving force determining the arrangement of nanoparticles on the tip. The results show various nanoparticles deposition patterns, from which the deposits can be classified in two categories. The type of deposit is shown to be strongly dependent on whether or not the triple line is pinned and of the peptide coating of the gold nanoparticle. In order to assess the classification, companion dynamical studies of nanomeniscus and related dissipation processes involved with thinning effects are presented.     

Comparison of Shelf Life of Eggs Coated with Chitosans Prepared under Various Deproteinization and Demineralization Times

Internal quality of eggs coated with chitosans prepared under various deproteinization (DP at 0, 5, 15 min) and demineralization (DM at 0, 10, 20, 30 min) times was evaluated. Chitosans prepared under DP 0 min/DM 30 min, DP 5 min/DM 30 min, and/or DP 15 min/DM 20 min conditions can be effectively used as an egg‐coating material in preserving the internal quality of eggs compared with chitosan prepared under the DP 15 min/DM 30 min condition. The Haugh unit and yolk index values suggested that the chitosan‐coated eggs can be preserved for at least 2 wk longer than the control noncoated eggs during 5 wk of storage at 25°C.     

气水反冲洗滤池设计和运行探讨

介绍了气水反冲洗滤池的运行操作和一般注意事项，针对滤池运行中存在的问题，提出了解决方法。     

多臂井径测井技术在油田套损检测领域的应用

本文通过研究表明,多臂井径测井资料尤其是独立臂测量井径测井资料,可以确定套损点主剪切面,精确识别套损地质层位,为套损机理研究提供依据;可以判定套损点或套损段的具体形态,如剪切形态、弯曲形态、缩径形态等,为准确制订大修措施提供依据。实际证明,多臂井径测井技术在油田套损防治领域作用重大、前景广阔。     

M. Powell Lawton (1923-2001).

M. Powell Lawton, PhD (1923-2001), the founding editor of Psychology and Aging (1986-1991), died on January 29, 2001, of a brain tumor. Dr. Lawton's groundbreaking studies of the environmental psychology of later life and the needs of Alzheimer's patients and their caregivers, as well as his continuing interest in probing areas of health and well-being in aging, have played a major role in enhancing the quality of life of elderly people. Dr. Lawton was a strong advocate for the needs of elderly people. He was a delegate to the White House Conference on Aging in 1971, a member of the National Technical Committee on Housing, and chair in 1996 of APA's Ad Hoc Committee on Issues of the Older Adult. In addition to his scholarly achievements, Dr. Lawton was a wonderful mentor and friend to many in gerontology. He was truly a giant and will be missed greatly. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of elevated temperatures and cooling regimes on normal strength concrete

The compressive strength of normal strength concrete at elevated temperatures up to 700^°C and the effect of cooling regimes were investigated and compared in this study. Thus, two different mixture groups with initial strengths of 20 and 35 MPa were produced by using river sand, normal aggregate and portland cement. Thirteen different temperature values were chosen from 50 to 700^°C. The specimens were heated for 3 h at each temperature. After heating, concretes were cooled to room temperature either in water rapidly or in laboratory conditions gradually. The residual strengths were determined by an axial compressive strength test. Strength and unit weight losses were compared with the initial values. Throughout this study, ASTM and Turkish Standards were used. It was observed that concrete properties deteriorated with the heat; however, a small increase in strength was observed from 50 to 100^°C. Strength loss was more significant on the specimens rapidly cooled in water. Both concrete mixtures lost a significant part of their initial strength when the temperature reached 700^°C. Copyright © 2008 John Wiley & Sons, Ltd.     

Zur Berechnung des Feuchtdeverhaltens von Bauteilen aus Holz und Holzwerkstoffen

It was stated which moisture properties for wood and wood based materials are available and how far they are suitable for the determination of the new coefficients. In spite of substantial deficits some evaluations as well as calculation examples have approximatively been possible. Starting points for further investigations, especially concerning moisture properties, and practical fields of application are pointed out.     

Robert J. Gatchel: Award for Distinguished Professional Contributions to Applied Research.

Provides the biography of Robert J. Gatchel and announces that he has received the APA Award for Distinguished Professional Contributions to Applied Research (2004) for exceptional and pioneering research and training in clinical health psychology. A selected bibliography is also provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)