教育个性化背景下的远程教育

该文通过审视教育个性化的历史和教育个性化与远程教育的关系,讨论如何借助 +远程教育促进教育的个性化发展。文章指出,教育个性化一是满足不同个性学习者的需要,二是促进学生个性的和谐发展。文章探讨了远程教育对教育个性化思想的理论体现和实践措施。这些措施包括办学方向的多元化、教学内容的适切性、教学方法的适应性以及教学手段的选择性。     

关于康熙本《三朝实录》

清朝太祖、太宗、世祖三朝《实录》从初纂几经修订,直到定本的过程中形成两个以上的本字。其中康熙《三朝实录》国内已不存,日本则有其抄本流传。同乾隆定本《三朝实录》及蒙古原始档案的相比,康熙本较乾隆本具有更高的史料价值。     

试论电大远程开放教育的全面质量管理

电大远程开放教育引入全面质量管理就是要“以学生为中心”,把“质量第一”贯穿于教育教学的全过程,通过建立质量标准和质量保证体系,促使电大开放教育质量的持续提高。     

三环互动教学模式中导学探微——兼谈政治经济学导学体会点滴

经过三年的教学实践与探索,黑龙江电大基本形成了在现代远程开放教育条件下,人才培养模式的基本框架及相应的教学模式:三环互动教学模式。其中的导学,使教师角色发生了重要转变,同时对教师及导学质量提出了更高要求。     

Numerical simulation of bubble chaotic motion in a cavitating water jet

~~00002RKRSr= (6) If 0tKt=, Eqs. (2),(3) and (4) change into the following equation that is applied to simulations using the MathCAD software. ddd(,,)dd1dxyygxyzzttt=== (7) where 11251(,,)()(1)gxyzABCyxaaaa=++-+, 2132131145678222124531678831(1),23(1)[(1sin],[3cos()] AyyByxxyxzCxyxyxyxzggaaaaaaaaaaaaagaaaa-------=--=++---+=+-- (8) 5g00pK6g0p…     

柑桔潜叶蛾产卵行为对叶片选择的研究

研究春梢、夏梢和秋梢期间,柑桔潜叶蛾雌成虫产卵行为对新梢叶片长度的选择。根据模型分析,春梢期产卵选择的最佳叶长为1.6m),夏、秋梢期选择产卵的最佳叶长为2.4cm。     

Synthesis of 3-O-Benzoyl-1 ,2-O-isopropylidene-a-D-allofuranose and Its Dimesylated Derivative

Diisopropylidenated a-D-glucofuranose (1) was oxidated with CrO;-Pyridine complex. Oxidated product and its hydrate were separated and were reduced together to synthesize diisopro-pylidenated a-D-allofuranose (3 ). The yield of 3 increased by 8% than that with only oxidated prod-uct as reduction substrate. Benzoylated derivative of 3 was selectively hydrolyzed and dimesylated to synthesize 3-O-benzoyl-l ,2-O-isopropylidene-a-D-allofuranose (5) and its dimesylated deriva-tive respectively. The overall yield of 5 from 1 was 36%. Each step and final products were analyzed by 'H-NMR spectra and other methods. The experiments showed that the influence of acetic acid concentration on selective hydrolysis was obvious. The hydrolysis yield was 81. 8%. Oxidation, re-duction and other procedures were practical and had application potential.     

众叛亲离的“大卫王”斯图潘家族与大卫王家族对比研究

威廉·福克纳的代表作《押沙龙,押沙龙》取材于《圣经》(撒母儿记)。本文作者认为小说人物中惟有斯图潘与大卫王对应关系明确。押沙龙在小说中则没有明确的人物对应关系,而且具有指向的模糊性和多义性。     

战后日本振兴偏僻地区教育的措施及其启示

日本非常重视偏僻地区教育发展,一直将振兴偏僻地区教育作为一项十分重要的国策予以重视。比如,制定专门面向偏僻地区教育发展的《偏僻地区教育振兴法》,建立一整套保障偏僻地区教育发展的财政补助制度,重视面向偏僻地区学校的教师培养和培训,大力推进偏僻地区教育信息化建设。日本振兴偏僻地区教育的措施对我国当前的农村教育特别是贫困地区教育工作的开展具有借鉴作用。     

A parametric study on the contact stress of half toroidal continuously variable transmission

1. Introduction A toroidal continuously variable transmission (CVT) that uses a traction drive to transmit torque has a vastly larger torque capacity than a conventional CVT. This transmission technology has attracted considerable interest owing to its capability in substantially improving vehicle fuel economy and power performance [1]. The half toroidal CVT transmits torque by means of shear resistance of the traction fluid film taking advantage of the property of the fluid solidificatio…