Crystal Engineering: A Textbook
Crystal Engineering Intermolecular Interactions Crystal Design Strategies Crystallization and Crystal Growth Polymorphism Multi-component Crystals Coordination Polymers.
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Theory of ferromagnetic hysteresis: determination of model parameters from experimental hysteresis loops
The authors describe how the parameters defining hysteresis in the theory of hysteresis can be obtained from a set of experimental magnetization measurements. The hysteresis parameters can be calculated from the anhysteretic susceptibility at the origin, the coercivity, the remanence, and the coordinates of the hyster…
A model for switching impulse leader inception and breakdown of long air-gaps
A mathematical model is described for continuous leader inception and breakdown of long gaps under positive switching impulses with critical time-to-crest. The model deals with rod, sphere, and conductor-plane gaps. It provides novel analytical expressions for continuous leader inception voltage, height of the final j…
Texture control in the production of grain oriented silicon steels.
The most successful texture control has been achieved in the production of grain oriented silicon steels. This paper reviews the historical background and current knowledge of texture control for ensuring the high performance of the Goss oriented silicon steel sheets. Special emphasis is placed on the important contri…
Rate of release of extracellular amino acids and carbohydrates from the marine diatom Chaetoceros affinis
Excretion from the marine diatom Chaetoceros affinis was investigated in batch cultures. The rates of release of carbohydrates and amino acids per cell were higher in rapidly growing cells than in stationary phase cells. However, because photosynthesis per cell decreased significantly during nutrient depletion, excret…
The preparation and properties of low molar mass liquid crystals possessing lateral alkyl chains
The first twelve members of three new mesogenic homologous series have been characterized, each of which are composed of molecules possessing lateral alkyl chains. The n-alkyl 2,5-bis-(4-n-hexyloxy-benzoyloxy)-benzoates are purely nematic whereas both nematic and smectic behaviour is observed for the 4-cyano-4′-biphen…
Differences in silica content between marine and freshwater diatoms
Marine diatoms are shown to have on average one order of magnitude less silica per unit of biovolume than freshwater species. Silica content (pmol cell −1 ) increases linearly with biovolume ( µ m 3 ) in both marine (1og 10 [silica content] = 0.91 log 10 [biovolume] — 3.16; r = 0.92; P < 0.0001; N = 44) and freshwa…
Intercalation of organic and inorganic anions into layered double hydroxides
A procedure for intercalating layered double hydroxides is described:power X-ray diffraction, i.r., and thermogravimmetric measurements confirm that for sebacic acid, toluene-p-sulphonic acid, and dodecyl sulphate intercalation takes place and results in gallery heights of 11.5,12.2, and 8.4 Å respectively.
Deformed helix ferroelectric liquid crystal display: A new electrooptic mode in ferroelectric chiral smectic C liquid crystals
A new electrooptic mode of operation of ferroelectric chiral smectic C liquid crystal displays (LCDs) is proposed and demonstrated. The effect, which is called the deformed helical ferroelectric (DHF) effect, is based on the deformation of the helical structure by weak electric fields. In the unbiased device the smect…
The Cahn-Hilliard Model for the Kinetics of Phase Separation
In this paper we consider the Cahn-Hilliard mathematical continuum model of spinodal decomposition (or phase separation) of a binary alloy. The phenomenological model is derived in section one. The existence theory for the Cahn-Hilliard equation is reviewed in section two. Various aspects and generalizations are surve…
Adsorption of carbon monoxide and carbon dioxide on cerium oxide studied by Fourier-transform infrared spectroscopy. Part 2.—Formation of formate species on partially reduced CeO2 at room temperature
The adsorption of CO on partially reduced CeO2[CeO2(573-H) and CeO2(673-H), CeO2 reduced in H2 at 573 and 673 K for 1 h, respectively] has been studied by Fourier-transform infrared spectroscopy (F.t.i.r.). The observation of formate species (771, 1329, 1369, 1558, 1587, 2852 and 2945 cm–1) formed by the reaction of C…
Fabric Performance in Clothing and Clothing Manufacture
After the performance of clothing fabric in use has been satisfied to some extent, consumers seek better-quality, that is, more comfortable, fabrics. Fabric performance in relation to ‘better fitting to the human body’ is an essential requirement of clothing materials. From the mechanical-comfort viewpoint, textile pr…
The lubrication force between two viscous drops
The hydrodynamic force resisting the relative motion of two unequal drops moving along their line of centers is determined for Stokes flow conditions. The drops are assumed to be in near-contact and to have sufficiently high interfacial tension that they remain spherical. The squeeze flow in the narrow gap between the…
Tool and Manufacturing Engineers Handbook
The TMEH Desk Edition presents a unique collection of manufacturing information in one convenient source. Contains selected information from TMEH Volumes 1-5--over 1,200 pages of manufacturing information. A total of 50 chapters cover topics such as machining, forming, materials, finishing, coating, quality control, a…
ISOTROPY SUBGROUPS OF THE 230 CRYSTALLOGRAPHIC SPACE GROUPS
This book gives a rather exhaustive list of isotropy subgroups of the 230 crystallographic space groups. The symmetry changes for the vast majority of observed phase transitions in crystalline solids can be found in the list. With each entry, information is given concerning both physical and abstract characteristics o…
A review of the charge simulation method and its applications
The author provides a comprehensive review of the basic charge simulation method and its various modified versions reported in the literature. Applications of the charge simulation method, alone as well as in combination with other methods, are considered. Different aspects of this method are critically examined and i…
Fundamentals of Shaped Charges
History of shaped charges applications the Gurney velocity approximation shaped charge jet formation the visco-plastic jet formation theory comments on explosive welding, bonding and forming the breakup of shaped charge jets shaped charge jet penetration models other aspects of shaped charges computational aspects of…
Relative Effectiveness of Various Ions on the Solubility and Crystal Growth of Lysozyme
Crystallization conditions for hen egg white lysozyme in the presence of various ions were determined at pH 4.5 and 18 degrees C. The corresponding solubility curves show that the main effects are due to anions in the following order: SCN- greater than NO3- greater than Cl- greater than citrate2- greater than CH3COO-…
Plasma Treatment for Improved Bonding: A Review
The nature of low-pressure glow-discharge plasma, plasma equipment, and the effect of plasma on materials is reviewed. Examples are given of the improved adhesive bonding of polymers after plasma treatment (2–10 times improvement in lap-shear) and of the surface cleaning and chemical modification that occurs during pl…
Response times and voltages for PDLC light shutters
The response times and operating voltages of light shutters formed from polymer dispersed liquid crystals (PDLCs) have been studied experimentally and the results compared with calculations based on non-sperhically shaped nematic droplet models. The experiments were performed on light shutters with elongated and unifo…