新闻评论节目的电视发展战略窥探——以《老梁观世界》为例

随着电视新闻行业在新媒体时代引擎下的迅速发展,新闻评论节目近年来在影视领域逐渐备受关注,金飞、周立波等新闻明星也进入广大观众的视野之内。梁宏达老师主持的《老梁观世界》等新闻评论节目,以其目光的敏锐、观点的犀利,得到时事爱好者和新闻关注者的普遍认同,但也招致一定争议。以《老梁观世界》为研究对象,通过对老梁评论艺术的分析研讨,试图以点带面窥探新媒体时代新闻评论节目的电视发展战略。     

Steady-state and impedance study of n-GaAs in H2SO4 solution: Mechanism analysis

In this paper, a study on the electrochemical impedance of anodic decomposition of n-GaAs in 0.5 M sulfuric acid, combined with steady-state polarization techniques, is presented. Both dark and daylight conditions have been investigated for comparison of their influence on polarization curves and impedance by hole injection in a potential range from open circuit to breakdown. An inductive loop appears if a high enough positive potential is applied for both conditions, while recombination resistance is only observed for the daylight case. Quantitative simulation of the impedance spectra suggests that the rate-determining step for corrosion/photocorrosion is the generation of mobile intermediates, e.g., AsGa⁺, which are then replaced by competition between a Faradaic process involving immobile intermediate formation and a parallel chemical step to form AsGa-OH.     

Growth mechanism and characterization of chemical oxide films produced in peroxide mixtures on Si(100) surfaces

The growth kinetics of silicon chemical oxides in H₂O₂-containing solutions at various pH values and temperatures was studied by electrochemical impedance spectroscopy (EIS), ellipsometry and X-ray photoelectron spectroscopy. Infrared (IR) spectroscopy was also used to investigate the evolution of the surface chemistry from the initial hydrogen coverage as Si-H bonds to the subsequent oxidation states by analysing the Si-O-Si stretching vibration modes. Successive EIS diagrams obtained as a function of time constituted a series of semicircles indicating that the semiconductor/oxide/electrolyte junction can be modelled as a resistance-capacity (RC) circuit. It was then observed that the resistance term increased with time to almost 1 MΩ cm² after 3 h in SC1 solution. It is generally known that, in alkaline solutions such as SC1, the oxidation rate reaches rapidly a steady regime controlled by the interfacial charge transfer reaction and the subsequent dissolution of the generated oxide. Accordingly, a mechanism involving a diffusion process of reactants through the oxide barrier followed by a simultaneous dissolution of the layer is proposed. Likewise, in acidic media such as SC2, even though the solubility is extremely low, we have extended our model based on the competition between the oxidation rate at the surface and the dissolution of the built-up oxide, and thus it was possible to evidence oxide solubility at the nanoscopic scale. In addition, thickness measurements by ellipsometry together with the observed gradual change in the IR spectrum of the Si-O-Si vibration mode were interesting parameters revealing that the oxide growth proceeds simultaneously with an evolution of the structure leading to a more compact and insulating dielectric layer. The whole of the results lead to a model for the oxidation process accounting for the observed structure and complex impedance properties under various conditions of chemical treatment.     

黄炎培职业教育思想的形成、发展及其重要贡献

黄炎培先生是中国近代著名的民主革命家、教育家,中华职业教育社和中华职业学校（今南京工业职业技术学院）的创立者,开创了我国职业教育的先河。本文阐述了黄炎培职业教育思想形成的历史文化背景,介绍了黄炎培职业教育思想的发展过程和主要内涵,归纳了黄炎培职业教育思想对我国职业教育事业的贡献。指出在大力发展职业教育的今天,我们在不断地吸收外国成功经验的同时,还应当发掘、整理和继承我国近代以来以黄炎培先生为代表的职业教育思想,探索面向新世纪的具有中国特色的职业教育发展之路。     

Moment distributions of clusters and molecules in the adiabatic rotor model

We present a Fortran program to compute the distribution of dipole moments of free particles for use in analyzing molecular beams experiments that measure moments by deflection in an inhomogeneous field. The theory is the same for magnetic and electric dipole moments, and is based on a thermal ensemble of classical particles that are free to rotate and that have moment vectors aligned along a principal axis of rotation. The theory has two parameters, the ratio of the magnetic (or electric) dipole energy to the thermal energy, and the ratio of moments of inertia of the rotor.

Program summary

Program title:AdiabaticRotorCatalogue identifier:ADZO_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/ADZO_v1_0.htmlProgram obtainable from:CPC Program Library, Queen's University, Belfast, N. IrelandLicensing provisions:Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.:479No. of bytes in distributed program, including test data, etc.:4853Distribution format:tar.gzProgramming language:Fortran 90Computer:Pentium-IV, Macintosh Power PC G4Operating system:Linux, Mac OS XRAM:600 KbytesWord size:64 bitsClassification:2.3Nature of problem:The system considered is a thermal ensemble of rotors having a magnetic or electric moment aligned along one of the principal axes. The ensemble is placed in an external field which is turned on adiabatically. The problem is to find the distribution of moments in the presence of the external field.Solution method:There are three adiabatic invariants. The only nontrivial one is the action associated with the polar angle of the rotor axis with respect to external field. It is found by Newton's method.Running time:3 min on a 3 GHz Pentium IV processor.     

Using the “Mr. Big” technique to elicit confessions: Successful innovation or dangerous development in the Canadian legal system?

Canada’s legal system recognizes that police interrogation procedures may contribute to false confessions, and has provided safeguards designed to protect the rights of the accused and reduce the likelihood of these errors. Police in Canada are using a complex noncustodial interrogation procedure called the “Mr. Big” technique, to elicit confessions for recalcitrant suspects. Remarkably, this undercover (in that suspects do not know they are speaking to law enforcement officers) interrogation technique boasts a 75% confession rate and a 95% conviction rate when used (Gardner, 2004). However, it is possible that suspects in these situations may experience undue pressure to confess falsely. The purpose of this paper is fourfold: (1) to explore the nature of the Mr. Big technique; (2) summarize some recent Canadian legal cases relevant to confession evidence (e.g., R. v. Oickle, 2000; R. v. Mentuck, 2000; (3) examine Canadian law and police practices in the context of different jurisdictions around the world; and, (4) discuss the scientific evidence relevant to the Mr. Big procedure. We conclude the paper by discussing recommendations for current and future police practice, directions for future research, and the ways in which psychological research could inform legal policy and procedures in the future. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

项目管理的网络信息平台Mr2000

介绍一套用于项目管理的网络信息平台Ｍｒ２０００，这个系统是使企业的部门之间协同工作的集成系统，不限于单项软件的集合和数据的简单共享，主要实现了数据及软件协调调度的高效、完整体系，为施工单位提供了一套先进的企业管理整体解决方案     

A comparison of time domains for software reliability models

A comparison of time domains (i.e., execution time vs. calendar time) is made for software reliability models, with the purpose of reaching some general conclusions about their relative desirability. The comparison is made by using a generic failure intensity function that represents a large majority of the principal models. The comparison is based on how well the function fits the estimated failure intensity, where the failure intensity is estimated with respect to both kinds of time. The failure intensity in each time domain is examined for trends. Failure intensity estimates are calculated from carefully collected data. The execution time domain is found to be highly superior to the calendar time domain.     

Microbiological changes in mayonnaise-based salads during storage

Within 6 h of manufacture of coleslaw, Florida, potato, Spanish and vegetable salads the concentration of acetic acid in the mayonnaise component decreased by absorption into the plant tissue, and the pH increased. Except in Spanish salad, where the concentration of acetic acid remained at an inhibitory level, these changes allowed the growth of microorganisms in salads stored at 10°C, but not at 5°C, and emphasized the need for careful control of temperature during the distribution and sale of these products.     

Ada programming language standardization

The need for software management and standardization of programming languages used in military systems was first identified by DoD in 1975. DoD at that time supported many limited use languages for what are now called embedded computer applications. This diversity of languages contributed to high software costs. In November 1976, DoD first established seven approved , , , -J3, -J73, , -2, -1. Eventually the number of approved DoD languages may be reduced to three, Ada, , and . Ada was established as Military Standard 1815, on 10 December 1980. The ANSI standardization process for Ada is in progress. The Ada concept places restrictions on what may be called an Ada compiler. Compilers may not be called Ada compilers until they have passed validation tests. Up to 80% of software costs are incurred after the software has been put into service. Ada can promote a programming style that leads to maintainable software. It is in the program maintenance phase of the software life cycle where large savings will be achieved through the use of Ada.