加强科技期刊经营决策迎接新的机遇与挑战

中国科技期刊业正面临新的挑战和巨大的发展机遇。但是如何走向市场，如何在市场竞争中立于不败之地，这就要求我们面对市场，做好经营决策。     

物理实验课中如何加强学生的实验操作能力

新课改中加强了对物理实验操作能力的要求，文章就规范演示实验、重视基本操作和基本技能训练、扎扎实实上好实验课、积极开展课外科技活动并开放实验室，弥补实验课的不足几方面与大家进行探讨。     

安徽宿东矿区煤体构造破坏对煤储层特征的影响

论述了安徽宿东矿区受层滑构造而引起的煤层破碎、揉皱或塑性流动可导致煤储层的孔裂隙、渗透性及吸附能力等一系列的变化。在构造破坏程度低的区域,煤储层裂隙发育,有利于煤层气的抽排;煤层构造破坏程度较高的地区,煤层发生揉皱变形,煤储层的渗透率降低,因此不利于煤层甲烷的抽排。     

试论写作技巧中的无技巧

无技巧是写作时表现出来的似无实有的最高技能。它具有超越性、自然性、永恒性等特征。混化内容和形式的裂痕，使二者完美结合；有意识的积极参与，尤其是无意识强大的推动力；勤写多练：是无技巧形成的基本原因。它的艺术价值在于，重视艺术的独立性，重视受体的再创造功能，突破时空，永远流传。     

中国破产法如何投向市场经济--简议《破产法》的立法宗旨

本对于我国现行破产法在立法宗旨上的滞后性、破产立法与实践中出现的问题进行了较深入的探讨，同时也对如何重新确立《破产法》的立法宗旨，完善《破产法》提出了一点建议。     

略论我国公用企业的反垄断问题

本文对我国现阶段公用企业中的垄断特征及成因作了初步分析，也对我国公用企业中因存在自然垄断而造成的阻碍竞争、阻碍市场经济体制构建第一系列危害性作了详细分析，明确了在我国公用企业中反垄断的必要性，并提出了通过构建现代企业制度、引入竞争机制及规范公用企业的市场行为等措施来完善反公用企业垄断法律制度的建议。     

The effects of morphological structure on reading proficiency—A developmental study

The present report with three inter-related studies examined the effects of morphological complexity on reading proficiency in 103 fourth graders, 88 fifth graders and 107 sixth graders trichotomized into below average, average and above average readers. The reaction time paradigm and the developmental framework with three age groups provided more sensitive and stable results for inferring mental processes in accessing the lexicon. Study 1 on lexical decision with visually presented words and non-words with different morphemic boundaries suggests that words can be accessed in a decomposed state as morphemes by children. Study 2 and the complementary Study 3 requiring the vocalization of derived or base forms of words primed by target items in sentence frames indicate that words might be accessed in full forms. Further, the depth of derivational morphology and of base morphology with correlated phonological changes affect reading proficiency.     

Thermal mixing of two miscible fluids in a T-shaped microchannel

In this paper, thermal mixing characteristics of two miscible fluids in a T-shaped microchannel are investigated theoretically, experimentally, and numerically. Thermal mixing processes in a T-shaped microchannel are divided into two zones, consisting of a T-junction and a mixing channel. An analytical two-dimensional model was first built to describe the heat transfer processes in the mixing channel. In the experiments, de-ionized water was employed as the working fluid. Laser induced fluorescence method was used to measure the fluid temperature field in the microchannel. Different combinations of flow rate ratios were studied to investigate the thermal mixing characteristics in the microchannel. At the T-junction, thermal diffusion is found to be dominant in this area due to the striation in the temperature contours. In the mixing channel, heat transfer processes are found to be controlled by thermal diffusion and convection. Measured temperature profiles at the T-junction and mixing channel are compared with analytical model and numerical simulation, respectively.     

乡村学校课程建设的空间悖论及其消解

学校课程建设是在物理与社会空间中开展的课程资源特色化开发、序列化建构的教育实践.在乡村振兴和城镇化发展的时代背景下,乡村学校的课程建设蕴含着特定的空间权利及空间哲学问题.现实的乡村学校是嵌入乡村的,拥有特色化的课程发展空间,但在价值定位上却是逃离乡村的,在课程建设中漠视甚至吞噬着乡村取向的课程发展空间,由此形成乡村学校课程建设的空间悖论.为消除上述悖论,乡村学校需要立足本土知识与儿童经验,建设乡村学校优质课程;同时要整合地方经验与开放空间,拓展乡村学校课程视域,还要加强课程知识转化与价值建构,改善乡村儿童的自我理解.