bluuebunny/crossref_metadata_2025_split huggingface dataset:
Introductory quantum physics courses using a LabVIEW multimedia module
Authors: Orquín Ismael , García‐March Miguel‐Ángel , de Córdoba Pedro Fernández , Urcheguía Javier F. , Monsoriu Juan A. 
Published: July 2007

AbstractWe present the development of a LabVIEW multimedia module for introductory Quantum Physics courses and our experience in the use of this application as an educational tool in learning methodologies. The program solves the time‐dependent Schrödinger equation (TDSE) for arbitrary potentials. We describe the numerical method used for solving this equation, as well as some mathematical tools employed to reduce the calculation time and to obtain more accurate results. As an illustration, we present the evolution of a wave packet for three different potentials: the repulsive barrier potential, the repulsive step potential, and the harmonic oscillator. This application has been successfully integrated in the learning strategies of the course Quantum Physics for Engineering at the Polytechnic University of Valencia, Spain. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 124–133, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20100
Spreadsheet for cyclone and hydrocyclone design considering nonspherical particle geometry
Authors: Lenzi Marcelo K. , Lenzi Ervin K. 
Published: July 2007

AbstractCyclones and hydrocyclones are widely used for gas–solid and liquid–solid particle separations, respectively. The key feature is the presence of a centrifugal field. Equilibrium zone concept is one of the most used approaches for equipment design. This work revisits the design equations for nonspherical particles and compares design results considering nonspherical geometry to results considering spherical geometry and correcting the values to the non‐spherical particle geometry. A didactic spreadsheet was prepared for analysis and instruction, and depending on the particle shape and on the particle orientation, errors up to 38% may be obtained in the cut diameter and 10% in the global collection efficiency. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 134–142, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20102
An educational tool for 6‐DOF industrial robots with quaternion algebra
Authors: Cakir Mustafa , Butun Erhan 
Published: July 2007

AbstractRobot manipulators have gained popularity in the past few decades with successful implementation for intelligent manufacturing in many industrial areas. This is why many colleges are now offering robotics courses. Understanding of a manipulation in robotics is difficult for engineering students because there is no direct and obvious link between what the end‐effector needs to do in physical space and what the actuator does to move it robots are usually equipped with internal position sensors in order to measure the relative position of two neighboring links. So, teaching students a robotic manipulator in a laboratory, or training technical staff, is time consuming and may be an expensive task. This article presents an educational tool for robotic with flexible structure and graphical interface by using a new and useful algebra, quaternion algebra. System parameters can be changed easily under different operating conditions. Then, students may perform experiments to verify learned theory and to interpret and discuss the results without a detailed programming knowledge. Six degree of freedom (6‐DOF) robot manipulators of general architecture can be solved easily with the help of this educational software with reducing general robot laboratory costs. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 143–154, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20104
Web‐based remote online maximum wind power monitoring and control system
Authors: Lin Hsiung Cheng 
Published: July 2007

AbstractThe shortage of traditional energy sources like fossil fuels is getting worse on earth today. Therefore, the exploitation in dipping renewable energy such as wind power has become an essential issue in both academia and industry recently. The installed wind power capacity in the world has been increasing rapidly over the past decade. However, wind energy is distributed, and varies significantly according to the meteorological conditions. As a result, the development of online wind power monitoring system is indispensable before installing a wind power generation. In this article, a PC‐based virtual instrument (VI) that can carry out an online maximum wind power tracking using LabVIEW and the microprocessor (MCS‐8051) is proposed. The nearby PC (Server) can collect real‐time data, that is, wind direction, speed, etc., that is transmitted to remote PCs (clients) for instant wind power analysis via the Web. The history of wind information can also be recorded and tracked in the database by clients. A practical model of small wind generation system is set up to demonstrate its online operation for remote dynamic maximum wind power monitoring and control. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 155–165, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20106
A chemical engineering laboratory over distributed control and measurement systems
Authors: Guo Jing , Kettler David , Al‐Dahhan Muthanna 
Published: July 2007

AbstractRemote control of lab apparatus via the Internet allows flexible scheduling of experiments and exercises. This paper presents a novel application of computers and Internet technology in chemical engineering education that highlights interactive learning for an undergraduate course in online measurement and control. The proposed client–server architecture can be adapted to drive different kinds of devices and can be easily expanded. The developed online laboratory has been tested by many students using different connections and operating conditions. This Internet‐based solution can improve undergraduate engineering education in a conventional unit operation laboratory. As an example, the application of remote experiments to characterize a plug flow reactor is described. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 174–184, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20108
Teaching microprocessors, microcontrollers, and digital signal processing courses using only one target processor: The newborn dsPIC30F™ from Microchip™
Authors: Mohanna Yasser , Hamad Mostafa , Jabr Rabih , Alaeddine Ali , Bazzi Oussama 
Published: July 2007

AbstractAs the technology of electrical and computer engineering (E&CE) grows, undergraduate programs are under constant pressure to keep content up‐to‐date within a 4‐year context of a fixed number of credits hours allowed for graduation. Teaching Microprocessors, Microcontrollers and Digital Signal Processing using only one target processor (dsPIC30F™) can save many credit hours and efforts. The newborn dsPIC30F from Microchip is a microcontroller with digital signal processing power and a new Harvard architecture. In addition, the same processor can be easily used in lab experiments, final year projects and research works. © 2007 Wiley Periodicals, Inc. Comput Appl Eng Educ. 15: 185–191, 2007; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20109
From projection pursuit to other unsupervised chemometric techniques
Authors: Daszykowski Michał 
Published: July 2007

AbstractThe main goal of exploratory data analysis is to reveal clusters of objects, local changes of data density, outlying objects and/or influential sources of data variance. These different aspects of data exploration can sometimes be accomplished simultaneously with the use of one algorithm, the projection algorithm (PA). In this paper, the PA is described and discussed in detail. It is shown that this algorithm can be considered as a general platform to perform principal components analysis (PCA), robust PCA and independent component analysis (ICA). This goal is achieved by optimizing various different projection indices in the PA. Among these indices one can find entropy, variance and robust scale estimator. The present paper can be regarded as tutorial, aiming to provide a better understanding of the projection pursuit approaches (PPs). Copyright © 2007 John Wiley & Sons, Ltd.
A componential approach to hypnotic memory facilitation: focused meditation, context reinstatement and eye movements
Authors: Wagstaff G.F. , Cole J. , Wheatcroft J. , Marshall M. , Barsby I. 
Published: July 2007

AbstractAlthough hypnosis is now less popular as an interviewing technique in forensic investigations than it used to be, recent evidence suggests that some of the components of hypnotic interviewing might still be useful in the development of brief memory facilitation procedures. Two experiments are described which continue this componential approach to hypnotic interviewing. In the first experiment, the effects on episodic memory of a brief context reinstatement (revivication) procedure were examined together with a focused breathing meditation technique which shares similarities with traditional hypnotic induction. A second experiment investigated the effects of horizontal eye movements which some have also associated with hypnotic responding. Results indicated that a combined context reinstatement and focused meditation procedure was more effective than context reinstatement alone in facilitating memory for an emotional event without the increase in false positive errors familiar to more traditional hypnosis techniques. In contrast, an instruction to perform horizontal eye movements was not effective in facilitating memory and, when combined with a suggestion for improved recall, produced higher confidence in incorrect responses. Implications are discussed. Copyright © 2007 British Society of Experimental & Clinical Hypnosis. Published by John Wiley & Sons, Ltd.
Synthesis of Novel Spinosyn A Analogues by Pd‐Mediated Transformations
Authors: Tietze Lutz F. , Brasche Gordon , Grube Alexander , Böhnke Niels , Stadler Christian 
Published: July 2007

AbstractThe concept of modern crop protection demands for a continuous supply of new or modified established pesticides to avoid the development of serious resistances. Recent reports on the insecticidal spinosyns 1 and 2 show that also this class of pest managing agents is increasingly exposed to the formation of resistances. The synthesis of new derivatives is therefore highly desirable. We describe in this paper a convergent approach towards novel enantiopure spinosyn A analogues of type 3, which is based on investigations of structure–activity relationships and employs a twofold Heck reaction as key step for the preparation of the tricyclic backbone assembly.
Productive Synthesis and Properties of Polydiaminoanthraquinone and Its Pure Self‐Stabilized Nanoparticles with Widely Adjustable Electroconductivity
Authors: Li Xin‐Gui , Li Hu , Huang Mei‐Rong 
Published: July 2007

AbstractWholly aromatic poly(1,5‐diaminoanthraquinone) (PDAA) particles were productively synthesized for the first time by chemically oxidative polymerization of 1,5‐diaminoanthraquinone (DAA) by using CrO3, K2Cr2O7, K2CrO4, or KMnO4 as oxidants in acidic DMF. The effects of the oxidant species, oxidant/DAA ratio, polymerization temperature, and medium on the polymerization yield, macromolecular structure, size, electroconductivity, solubility, solvatochromism, thermostability, photoluminescence, and silver‐ion sorption of the PDAA particles were systematically studied by IR, UV/Vis, fluorescence, and solid‐state 13C NMR spectroscopies, wide‐angle X‐ray diffraction, scanning and transmission electron microscopies, and laser particle‐size, differential scanning calorimetry (DSC), and thermal gravimetric (TG) analyses. It seems that the DAA is oxidatively polymerized at the 1,4‐ and 5,8‐positions. Surprisingly, the chemical oxidative polymerization of DAA with CrO3 at 0 °C in H2SO4/DMF in the absence of external stabilizer simply affords novel PDAA nanoparticles of around 30 nm in diameter with high purity, clean surfaces, inherent semiconductivity, and self‐stability that can be ascribed to the presence of a large number of 1,4‐benzoquinone units that are negatively charged on their macromolecular chains. The polymers exhibit a high thermal stability at temperatures below 400 °C. Two unique nanoeffects were found, namely the strongest silver‐ion adsorbability and photoluminescence of the PDAA nanoparticles. This gives a facile and general route for the application of the versatilities of PDAA nanomaterials. The PDAA particles are good semiconductors with a widely adjustable conductivity that moves across seven orders of magnitude through simple HClO4 redoping or Ag+ sorption, as expected.
Hydrolytic Reactions of Thymidine 5′‐O‐Phenyl‐N‐Alkylphosphoramidates, Models of Nucleoside 5′‐Monophosphate Prodrugs
Authors: Ora Mikko , Ojanperä Jarno , Lönnberg Harri 
Published: July 2007

AbstractTo obtain detailed data on the kinetics of hydrolytic reactions of triester‐like nucleoside 5′‐O‐aryl‐N‐alkylphosphoramidates, potential prodrugs of antiviral nucleoside monophosphates, the hydrolysis of diastereomeric (RP/SP) thymidine 5′‐{O‐phenyl‐N‐[(1S)‐2‐oxo‐2‐methoxy‐1‐methylethyl]phosphoramidate} (3), a phosphoramidate derived from the methyl ester of L‐alanine, has been followed by reversed‐phase HPLC over the range from H0=0 to pH 8 at 90 °C. According to the time‐dependent product distributions, the hydrolysis of 3 proceeds at pH<4 by two parallel routes, namely by nucleophilic displacement of the alaninyl ester moiety by a water molecule and by hydrolysis of the carboxylic ester linkage that allows intramolecular attack of the carboxy group on the phosphorus atom, thereby resulting in the departure of either thymidine or phenol without marked accumulation of any intermediates. Both routes represent about half of the overall disappearance of 3. The departure of phenol eventually leads to the formation of thymidine 5′‐phosphate. At pH>5, the predominant reaction is hydrolysis of the carboxylic ester linkage followed by intramolecular displacement of a phenoxide ion by the carboxylate ion and hydrolysis of the resulting cyclic mixed anhydride into an acyclic diester‐like thymidine 5′‐phosphoramidate. The latter product accumulated quantitatively without any indication of further decomposition. Hydroxide‐ion‐catalyzed POPh bond cleavage of the starting material 3 occurred as a side reaction. Comparative measurements with thymidine 5′‐{N‐[(1S)‐2‐oxo‐2‐methoxy‐1‐methylethyl]phosphoramidate} (4) revealed that, under acidic conditions, this diester‐like compound is hydrolyzed by PN bond cleavage three orders of magnitude more rapidly than the triester‐like 3. At pH>5, the stability order is reversed, with 3 being hydrolyzed six times as rapidly as 4. Mechanisms of the partial reactions are discussed.
Characterization and Photoluminescence Properties of Tb‐Doped SiO2 Nanowires as a Novel Green Emitting Phosphor.
Authors: Lin Jing , Huang Yang , Zhang Jun , Gao Jianming , Ding Xiaoxia , Huang Zhixin , Tang Chengcun , Hu Long , Chen Dongfeng 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reliable Predictions of the Thermochemistry of Boron—Nitrogen Hydrogen Storage Compounds: BxNxHy, x = 2, 3.
Authors: Matus Myrna H. , Anderson Kevin D. , Camaioni Donald M. , Autrey S. Thomas , Dixon David A. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
[Mo16O53F2]12‐: A New Polyoxofluoromolybdate Anion.
Authors: Stover Adam K. , Gutnick Jesse R. , Sarjeant Amy Narducci , Norquist Alexander J. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mechanism of the Fe3+ Reduction at Low Temperature for LiFePO4 Synthesis from a Polymeric Additive.
Authors: Ravet N. , Gauthier M. , Zaghib K. , Goodenough J. B. , Mauger A. , Gendron F. , Julien C. M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Effect of Pb on the Properties of Sr2YRu1‐xCuxO6 Crystals Grown from PbO‐PbF2 Solutions at High Temperatures.
Authors: Rao S. M. , Wu M. K. , Wang K. J. , Yen N. Y. , Ling M. C. , Liu H. L. , Chen C. L. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cycloadditions of 3,4‐Dihydro‐2H‐pyrrole N‐Oxide with Thioketones and a Selenoketone.
Authors: Shioji Kosei , Matsumoto Akio , Takao Masahiko , Kurauchi Yoshimitsu , Shigetomi Toshiyuki , Yokomori Yoshinobu , Okuma Kentaro 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iron‐Catalyzed Benzylic Oxidation with Aqueous tert‐Butyl Hydroperoxide.
Authors: Nakanishi Masafumi , Bolm Carsten 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Scope, Limitations and Mechanistic Aspects in the Selective Homogeneous Palladium‐Catalyzed Reduction of Alkenes under Transfer Hydrogen Conditions.
Authors: Brunel Jean Michel 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Intramolecular Michael Reaction Catalyzed by Proline‐Derived Small Anilides.
Authors: Kikuchi Makoto , Inagaki Tomohiko , Nishiyama Hisao 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Contrasting Chemoselectivities in the Ultrasound and Microwave‐Assisted Bromination Reactions of Substituted Alkylaromatics with N‐Bromosuccinimide.
Authors: Heropoulos Georgios A. , Cravotto Giancarlo , Screttas Constantinos G. , Steele Barry R. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Ruthenium Catalysts for Asymmetric Transfer Hydrogenation of Prochiral Ketones.
Authors: Enthaler Stephan , Hagemann Bernhard , Bhor Santosh , Anilkumar Gopinathan , Tse Man Kin , Bitterlich Bianca , Junge Kathrin , Erre Giulia , Beller Matthias 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
I2O5: Mild and Efficient Reagents for the Oxidation of Alcohols in Water.
Authors: Liu Zhong‐Quan , Zhao Yankai , Luo Haiqing , Chai Lingzhi , Sheng Qiuju 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lewis Acid Catalyzed Reduction of Dithioacetals by 1,4‐Cyclohexadiene.
Authors: Ikeshita Kei‐ichiro , Kihara Nobuhiro , Sonoda Motohiro , Ogawa Akiya 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Simple and Highly Efficient Method for the Synthesis of Chalcones by Using Borontrifluoride‐etherate.
Authors: Narender T. , Reddy K. Papi 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Addition of 1‐Ethynylcyclohexene to Both Aromatic and Heteroaromatic Ketones Catalyzed by a Chiral Schiff Base—Zinc Complex.
Authors: Wang Quan , Zhang Bangzhi , Hu Guowen , Chen Chao , Zhao Qinyang , Wang Rui 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Simple Primary Anilines as Iminium Catalysts for the Epoxidation of α‐Substituted Acroleins.
Authors: Erkkilae Anniina , Pihko Petri M. , Clarke Melanie‐Rose 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cationic Iron‐Catalyzed Intramolecular Hydroalkoxylation of Unactivated Olefins.
Authors: Komeyama Kimihiro , Morimoto Takayuki , Nakayama Yuushou , Takaki Ken 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Waste‐Free Oxidative Coupling via Regioselective C—H Bond Cleavage: Rh/Cu‐Catalyzed Reaction of Benzoic Acids with Alkynes and Acrylates under Air.
Authors: Ueura Kenji , Satoh Tetsuya , Miura Masahiro 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Development of Copper‐Mediated Allylation of γ‐Activated‐α,β‐Unsaturated Lactam Toward Peptide Mimetic Synthesis.
Authors: Sasaki Yoshikazu , Yamaguchi Keiko , Tsuji Takashi , Shigenaga Akira , Fujii Nobutaka , Otaka Akira 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hexamethyldisilazane‐iodine Induced Intramolecular Dehydrative Cyclization of Diamides: A General Access to Natural and Unnatural Quinazolinones.
Authors: Kshirsagar Umesh A. , Mhaske Santosh B. , Argade Narshinha P. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Total Synthesis of (‐)‐Synrotolide Diacetate from D‐Ribose.
Authors: Krishna Palakodety Radha , Reddy P. Srinivas 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot Stereoselective Synthesis of β‐N‐Aryl‐glycosides by N‐Glycosylation of Aromatic Amines: Application to the Synthesis of Tumor‐Associated Carbohydrate Antigen Building Blocks.
Authors: Bridiau Nicolas , Benmansour Moulay , Legoy Marie Dominique , Maugard Thierry 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.