CFG桩和石灰桩复合地基处理技术在郑步某建筑升级改造中的应用分析

CFG桩（水泥、粉煤灰、石屑、碎石桩）和石灰桩（生石灰、粉煤灰）,具有加固改良地基提高地基承载力和水稳定性、密实土层的优点。施工对环境无污染、无噪声,机具设备简单,技术易于掌握,质量易控制。文中简单介绍了复合地基CFG桩和石灰桩的施工技术。     

Teacher self‐efficacy and successful intelligence among Chinese secondary school teachers in Hong Kong

This study assessed perceptions of self‐efficacy and successful intelligence among 220 Chinese prospective and in‐service secondary school teachers in Hong Kong. Teacher self‐efficacy in six domains – teaching highly able learners, classroom management, guidance and counselling, student engagement, teaching to accommodate diversity, and teaching for enriched learning – was related to the three triarchic dimensions (analytical, creative, and practical) of successful intelligence. Each of the three triarchic abilities was found to contribute independently and in combination to the prediction of the six domains of teacher self‐efficacy. Practical abilities were the most significant predictor of self‐efficacy beliefs in five domains. Teaching teachers for successful intelligence, in strategies to enhance teacher self‐efficacy, is discussed.     

高职办学实践之国际比较浅谈——以无锡科技职业学院为例

文章试图采用调查研究法、统计分析法对无锡科技职业学院的办学实践进行初步的国际的比较研究,映射出现今我国高职院校与国际接轨的某些先进的办学理念。     

小麦条锈菌的紫外诱变处理及致病性变异体的筛选

用紫外线以不同时间处理小麦条锈菌水源致病类型1-4、条中29-3、条中23-2,当夏孢子致死率达90%左右时,确定为最适诱变时间分别为12、8、5min.以紫外线12min处理水源致病类型1时,经6批次筛选未获得突变体.以8 min处理条中29-3,得到在Hybrid46上表现3型的菌系,在尤皮Ⅱ号上表现4型的菌系和在阿夫上表现2型的菌系,分别命名Hybrid46菌系、尤Ⅱ菌系和阿夫菌系,三菌系经4代转接该品种,最后获得2个稳定的突变菌系,包括毒性突变产生的尤Ⅱ菌系和非毒性突变产生的阿夫菌系.以5 min处理条中23-2得到两个突变菌系：在尤皮Ⅱ号上表现3型的菌系和在水源11上表现2型的菌系,分别命名为尤Ⅱ-23菌系和水源11菌系,其中尤Ⅱ-23菌系经4次转接仍保持毒性.     

Attribution‐based strategies for initiating and terminating friendships

Research in attribution theory has almost exclusively focused on the perception process to the neglect of studying how communicators incorporate attribution‐based information in their message behavior. This study derived a typology of attribution‐based strategies from Kelley's attribution cube and Jones' ingratiation tactics to assess respondent strategies for initiating and for terminating same‐sex friendships. Respondents were 191 persons drawn from fifth grade, high school, college, and post‐college groups. Results of the study included: 1) distinctiveness information was disproportionately employed in the strategy repertoires to the neglect of consistency‐based and consensus‐based information; 2) respondents had greater variety in types of strategies for their initiation repertoires as opposed to their termination repertoires; 3) repertoire variety for both initiation and termination increased from childhood through adolescence.     

地下电缆沟道漏水原因分析及处理方法

地下电缆沟道漏水是因变形缝止水带处理不当,底板与侧壁施工缝及沟道两侧埋件安装误差太大造成的。应采用综合防水堵漏、防水剂处理。     

Influence of different surface treatments of H13 hot work die steel on its thermal fatigue behaviors

Thermal fatigue checking is general failure of hot work die steels,which is relative with the structures and properties of the steels and the stress alternated during the employment.The Uddeholm test method on thermal fatigue is used to compare the behaviors of different samples,which are treated with plasma nitriding 、plasma sulfur-carbon-nitriding、boronizing or not treated.The results show that the nitriding improves the thermal fatigue property of the tool steel,while the plasma sulfur-carbon-nitriding and the boronizing impair the property.The mechanisms are induced as follows .By increasing the hardness and changing the stress distribution in the surface layer,surface treatment can decrease the plastic deformation and the temsile stress during the cycling.Therefore,the generation and growth of the cracks are restrained.On the other hand,as results of surface treating,in the surface layer the toughness declines and the expanding coefficient ascendes;the latter change caused the strengthening of the tensile and compressive stress during the cycling.Thus the resistance to thermal fatigue is weakened.Whether or not the surface treatment is favor to thermal fatigue of tool steels relies on which factor is dominant.