检索结果-南通市图书馆

橡胶参考资料 2000年第4期30卷 1-6页

作者： Jin kuk Kim 王进文

前言橡胶制品,特别是废旧轮胎的大规模处理在世界上许多地方造成了严重的环境问题。由于环境和经济上的原因,人们做了许多回收废轮胎的研究工作。回收旧轮胎的最古老的方法是再生,轮胎翻新的方法也使用了许多年。

关键词：废轮胎胶粉橡胶填料

子女教育对韩国妇女就业影响的实证研究——基于8700户家庭的调查

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

人口与经济 2014年第1期 88-98页

作者：南国铉李天国首尔国立大学经济研究所中国社会科学院亚太与全球战略研究院北京100007

文章基于韩国8700个家庭的调查数据,采用二阶段logit模型针对丈夫收入和子女教育对已婚女性劳动供给的影响进行测算。研究结果显示,一般婴幼儿子女具有降低已婚女性劳动供给的效应。丈夫高收入时,高年级子女具有降低已婚女性劳动供给的... 详细信息

文章基于韩国8700个家庭的调查数据,采用二阶段logit模型针对丈夫收入和子女教育对已婚女性劳动供给的影响进行测算。研究结果显示,一般婴幼儿子女具有降低已婚女性劳动供给的效应。丈夫高收入时,高年级子女具有降低已婚女性劳动供给的效应。丈夫低收入时,子女教育费用支出具有提高已婚女性劳动供给的效应。

关键词：子女教育丈夫收入已婚女性劳动供给

弯曲受力时中空管以及混凝土填充纤维复合管的有限元模型:管参数模型的建立、验证与研究

在线全文

学校读者我要写书评

暂无评论

钢结构 2009年第1期24卷 74-75页

作者： Je-kuk Son Amir Fam

建立一个非线性有限元模型研究中空管以及混凝土填充纤维复合管的抗弯性能。考虑材料和几何非线性并检验薄壁空管的局部屈曲性能。在厚壁中空管和混凝土填充纤维复合管中,通过Tsai-Wu准则判断碳纤维增强复合材料的破坏。采用试验数据,... 详细信息

建立一个非线性有限元模型研究中空管以及混凝土填充纤维复合管的抗弯性能。考虑材料和几何非线性并检验薄壁空管的局部屈曲性能。在厚壁中空管和混凝土填充纤维复合管中,通过Tsai-Wu准则判断碳纤维增强复合材料的破坏。采用试验数据,对模型进行了验证。然后,通过模型进行参数研究以检验直径与厚度比为40~125的中空管和混凝土填充纤维复合管的性质。考虑两种不同的纤维增强复合板层:一种是铺层角度与纵向成10°~75°,另一种是纵向纤维含量为25%~75%。研究显示:当纤维角度减少或纵向纤维含量增加时,尤其直径与厚度比较小时,抗弯强度增加。然而,当中空管的直径与厚度比较大时,这个角度对强度没有影响。当角度增加到35°~45°时,混凝土填充的影响变小,稳定性也降低,但不受纵向纤维含量的影响。在相关论文(FamA,SonJe-kuk.中空管以及混凝土填充纤维复合管的有限元模型:第二部分———填充优化和管设计方法)中,模型被用于优化混凝土部分填充纤维增强复合管线杆并对设计方法进行研究。

关键词：管复合材料混凝土填充薄壁局部屈曲有限元方法

在线全文

学校读者我要写书评

暂无评论

丙酮浸出法生产无臭棉籽粕的研究

粮食与饲料工业 1990年第3期 46-47页

作者： R. J. Hron M. S. kuk. 樊俊琪

将脱绒棉籽去壳轧片后,调至一定温度进行蒸炒处理,然后再对半,作干燥和不干燥处理。经过外理的各种样品用索氏抽提器以丙酮抽提5小时。棉籽粕去溶剂,感观评定表明,经过干燥处理的样品,脱脂棉籽粕无臭味。气相色谱分析,此无臭棉籽粕中异... 详细信息

将脱绒棉籽去壳轧片后,调至一定温度进行蒸炒处理,然后再对半,作干燥和不干燥处理。经过外理的各种样品用索氏抽提器以丙酮抽提5小时。棉籽粕去溶剂,感观评定表明,经过干燥处理的样品,脱脂棉籽粕无臭味。气相色谱分析,此无臭棉籽粕中异亚丙基丙酮和双丙酮醇含量为0.3 ppm和0.7ppm;而有臭的棉籽粕为1.6ppm。

关键词：无臭棉籽粕丙酮浸出法饲料

父母资助对城市子女住房费用的影响——基于韩国家庭面板数据的实证研究

在线全文

学校读者我要写书评

暂无评论

人口学刊 2017年第5期39卷 103-112页

作者：李天国南国铉中国社会科学院亚太与全球战略研究院北京100007 釜山大学经济系韩国釜山46241

大城市过高的房价使得很多适婚人群很难仅凭自身经济能力购买住房。因此,很多新婚夫妇向父母寻求经济资助,父母的经济能力和支持程度对新婚夫妇居住的住房条件以及婚房形式产生非常重要的影响。本文利用韩国劳动面板数据分析父母的收入... 详细信息

大城市过高的房价使得很多适婚人群很难仅凭自身经济能力购买住房。因此,很多新婚夫妇向父母寻求经济资助,父母的经济能力和支持程度对新婚夫妇居住的住房条件以及婚房形式产生非常重要的影响。本文利用韩国劳动面板数据分析父母的收入和资产对子女新婚居住形式与费用的影响。分析结果显示,当不区分男女样本进行回归时,子女的收入、教育水平和地区变量等一般认为会影响住房费用的因素在统计上均不显著。这表明新婚夫妇在筹备婚房的过程中所承担的责任往往并不相同。将男女样本分别进行回归时发现父母资产水平对新婚夫妇居住费用产生显著影响。特别是新婚夫妇中男方的住房方式受到父母资产的影响程度高于女方。这反映出婚房筹备方面男性承担主要费用的实际社会现象。而且比起父母当前收入,父母居住的住宅价格对新婚夫妇住宅价格产生更显著的影响,说明父母资产在婚房筹备上起到重要作用。城市居民的住房状况不仅涉及年轻人生活质量,也通过代际关系影响老年人的资产与收入,是关乎民生的重大社会问题。我国政府也面对同样的问题,应该加快建立和完善多层次城镇住房供应体系,对不同收入家庭实行不同的住房供应政策。发展租赁市场作为补充,建立购租并举的住房制度。住房政策与供应模式的创新与改革将有助于解决城市居民购房能力不足的问题,对推动国内消费模式的变化与长期持续中高速经济增长都将产生深远影响。

关键词：父母资助子女住房费用韩国面板数据 Logit模型住房制度

韩国青年失业的原因:期望薪资的影响及其启示

在线全文

学校读者我要写书评

暂无评论

人口学刊 2015年第3期37卷 51-62页

作者：南国铉李天国首尔国立大学经济研究所中国社会科学院亚太与全球战略研究院北京100007

本文使用1998-2008年的韩国劳动面板调查数据,将期望薪资作为保留薪资的代理变量纳入Logit模型,分析韩国青年求职者期望薪资与潜在薪资之间的差异（即高眼光因素）对青年就业的影响。分析结果表明,青年男性求职者期望薪资越高于潜在市... 详细信息

本文使用1998-2008年的韩国劳动面板调查数据,将期望薪资作为保留薪资的代理变量纳入Logit模型,分析韩国青年求职者期望薪资与潜在薪资之间的差异（即高眼光因素）对青年就业的影响。分析结果表明,青年男性求职者期望薪资越高于潜在市场薪资,就业概率越低。但这一结果不适用于中年求职者与女性求职者的就业问题。此外,年龄、学历、求职途径、求职地区、婚姻状态等也对青年就业产生影响。

关键词：韩国青年就业劳动力薪资

在线全文

学校读者我要写书评

暂无评论

线性移频技术的创新使用

中国听力语言康复科学杂志 2008年第1期37卷 27-30页

作者： Francis kuk（America）魏佩芳（译）唯听临床放大研究中心不详

Inteo助听器是首次运用整合信号处理（integrated signal processing，ISP）技术平台达到稳定可听度和自然音质的助听器。Inteo采用的一个独特技术是可听度扩展，即运用线性移频算法将可听度扩展到高频区，这恰恰是传统助听设备无能为... 详细信息

Inteo助听器是首次运用整合信号处理（integrated signal processing，ISP）技术平台达到稳定可听度和自然音质的助听器。Inteo采用的一个独特技术是可听度扩展，即运用线性移频算法将可听度扩展到高频区，这恰恰是传统助听设备无能为力之处。自从该款助听器发布后．我们已进行了数次研究．争取让该技术的使用优化。虽然我们的研究仍在进行之中，对该项技术的理解也需要进一步加深．不过，至少我们已经知道如何利用这种技术．让患者获得最大受益，因此，我们将在这篇文章中和读者分享其中的体会。

关键词：移频技术传统助听设备助听器信号处理技术平台

A Potential Weed Control Using Robotic Implement

在线全文

学校读者我要写书评

暂无评论

Journal of Life Sciences 2014年第5期8卷 473-480页

作者： Kwang Ho Park Soo Hyun Kim Young kuk Kim Han Jong Joo Yoon Shik Hong Jee Hyong Kim Keun Mo Koo Department of Food Crops Korea National College of Agriculture and Fisheries Hwaseong 445-760 Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and Technology Daejeon 305- 701 Republic of Korea Unmanned Technology Research Center Korea Advanced Institute of Science and Technology Daejeon 305-701 Republic of Korea Duksan Mecasys Co. Ltd. 7F 6th Byucksan Digital Valley 481-4 Gasan-Dong Geumcheon-Gu Seou1153-704 Republic of Korea

The research was conducted to develop a robot that can navigate a paddy in between rows or hills which were transplanted by the machine transplanter with equal distance. An initial prototype robotic battery-type weeder was manufactured and tested to navigate and control weeds in rice paddy fields, but a speed was so slow, and thus second engine-type prototype was developed. A working acreage for weed control has been attained at and up to 0.8 ha/day. Small and young weed seedlings were uprooted and destroyed by passive devices in between rows as well as hills. This robot was smoothly navigated in between rows on behalf of the guidance under camera and sensor systems and control weeds with mechanical by the use of implements such as passive rotary weeders and then weeds would be cut and buried into the soils. Also muddy water was generated during operation which was none penetrated by light for weed germination to occur. The authors concluded that the robotic was an effective alternative implement to control weeds in lowland rice paddy as long as this tool was systematically introduced into the rice fields at three time intervals, viz. 15-20 days, 25-30days, and 35-40 days after transplanting of rice seedlings.

关键词： Rice transplanting weed control robotic weeder.

Incremental age-related one-year MACCE after acute myocardial infarction in the drug-eluting stent era （from KAMIR-NIH registry）

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2018年第9期15卷 574-584页

作者： Dae-Won Kim Sung-Ho Her Ha Wook Park Kiyuk Chang Wook Sung Chung Ki Bae Seung Myung Ho Jeong Hyo-Soo Kim Hyeon Cheoi Gwon In Whan Seong Kyung kuk Hwang Shung Chull Chae Kwon-Bae Kim Young Jo Kim Kwang Soo Cha Seok Kyu Oh Jei Keon Chae Ji-Hoon Jung Division of Cardiology Daejeon St. Mary's Hospital College of Medicine the Catholic University of Korea Seoul South Korea Division of Cardiology Seoul St. Mary's Hospital College of Medicine the Catholic University of Korea Seoul South Korea Chonnam National University Hospital Gwangju South Korea Seoul National University Hospital Seoul South Korea Sungkyunkwan Universtiy Samsung Medical Center Seoul South Korea Chungnam National University Hospital Daejeon South Korea Chungbuk National University Hospital Cheongju South Korea Kyungpook National University Hospital Daegu South Korea Keimyung University Dongsan Medical Center Daegu South Korea Yeungnam University Hospital Daegu South Korea Pusan National University Hospital Busan South Korea Wonkwang University Hospital Iksan South Korea Chonbuk National University Hospital Jeonju South Korea Statistical Manager Institute of Toxicology Daejeon South Korea

Objectives To evaluate the age-related one-year major adverse cardiocerebrovascular events （MACCE） after percutaneous coronary intervention （PCI） in acute myocardial infarction （AMI）. We analyzed the association between age and one-year MACCE after AMI. Methods A total of 13,104 AMI patients from Korea Acute Myocardial Infarction Registry-National Institue of Health （KAMIR-NIH） between November 2011 and December 2015 were classified into four groups according to age （Group I, 〈 60 years, n = 4199; Group II, 60-70 years, n = 2577; Group III; 70-80 years, n = 2774; Group IV, ≥ 80 years, n = 1018）. Patients were analyzed for one-year composite of MACCE （cardiac death, myocardial infarction, target vessel revascularization, cerebrovascular events） after AMI. Results The one-year MACCE in AMI were 3.5% （Group I）, 6.3% （Group II）, 9.6% （Group III） and 17.6% （Group IV）. After adjustment for confounding para- meters, the analysis results showed that patients with AMI had incremental risk of one-year MACCE [Group II, adjusted hazard ratios （aHR） = 1.224, 95% CI： 0.965-1.525, P = 0.096; Group III, aHR = 1.316, 95% CI： 1.037-1.671, P= 0.024; Group IV, aHR = 1.975, 95% CI： 1.500-62.601, P〈 0.001） compared to Group I. Especially, cardiac death in the composite of primary end point played a major role in this effect （Group II, aHR = 1.335, 95% CI： 0.941-1.895, P= 0.106; Group III, aHR = 1.575, 95% CI： 1.122-2.210, P= 0.009; Group IV, aHR = 2.803, 95% CI： 1.937-4.054, P 〈 0.001）. Conclusions Despite advanced techniques and medications for PCI in AMI, age still exerts a powerful influence in clinical outcomes. Careful approaches, even in the modem era of developed cardiology are needed for aged-population in AMI intervention.

关键词： Acute myocardial infarction Aged-population Major adverse cardiocerebrovascular events

Gender differences in clinical outcomes of acute myocardial infarction undergoing percutaneous coronary intervention: insights from the KAMIR-NIH Registry

在线全文

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2020年第11期17卷 680-693页

作者： Myunhee Lee Dae-Won Kim Mahn-Won Park Kyusup Lee Kiyuk Chang Wook Sung Chung Tae Hoon Ahn Myung Ho Jeong Seung-Woon Rha Hyo-Soo Kim Hyeon Cheol Gwon In Whan Seong Kyung kuk Hwang Shung Chull Chae Kwon-Bae Kim Young Jo Kim Kwang Soo Cha Seok Kyu Oh Jei Keon Chae Ji-Hoon Jung 无 KAMIR-NIH registry investigators Division of Cardiology Daejeon St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Division of Cardiology Seoul St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Gachon University Gil Medical CenterIncheonSouth Korea Chonnam National University Hospital GwangjuSouth Korea d Korea University Korea University Guro Hospital SeoulSouth Korea Seoul National University Hospital SeoulSouth Korea Sungkyunkwan Universtiy Samsung Medical CenterSeoulSouth Korea Chungnam National University Hospital DaejeonSouth Korea Chungbuk National University Hospital CheongjuSouth Korea Kyungpook National University Hospital DaeguSouth Korea Keimyung University Dongsan Medical Center DaeguSouth Korea Yeungnam University Hospital DaeguSouth Korea Pusan National University Hospital BusanSouth Korea Wonkwang University Hospital IksanSouth Korea Chonbuk National University Hospital JeonjuSouth Korea Institute of Toxicology DaejeonSouth Korea 不详

Background There are numerous but conflicting data regarding gender differences in outcomes following percutaneous coronary intervention(PCI). Furthermore, gender differences in clinical outcomes with acute myocardial infarction(AMI) following PCI in Asian population remain uncertain because of the under-representation of Asian in previous trials. Methods A total of 13,104 AMI patients from Korea Acute Myocardial Infarction Registry-National Institute of Health(KAMIR-NIH) between November 2011 and December 2015 were classified into male(n = 8021, 75.9%) and female(n = 2547, 24.1%). We compared the demographic, clinical and angiographic characteristics, 30-days and 1-year major adverse cardiac and cerebrovascular events(MACCE) in women with those in men after AMI by using propensity score(PS) matching. Results Compared with men, women were older, had more comorbidities and more often presented with non-ST segment elevation myocardial infarction(NSTEMI) and reduced left ventricular systolic function. Over the median follow-up of 363 days, gender differences in both 30-days and 1-year MACCE as well as thrombolysis in myocardial infarction minor bleeding risk were not observed in the PS matched population(30-days MACCE: 5.3% vs. 4.7%, log-rank P = 0.494, HR = 1.126, 95% CI: 0.800-1.585;1-year MACCE: 9.3% vs. 9.0%, log-rank P = 0.803, HR = 1.032, 95% CI: 0.802-1.328;TIMI minor bleeding: 4.9% vs. 3.9%, log-rank P = 0.215, HR = 1.255, 95% CI: 0.869-1.814). Conclusions Among Korean AMI population undergoing contemporary PCI, women, as compared with men, had different clinical and angiographic characteristics but showed similar 30-days and 1-year clinical outcomes. The risk of bleeding after PCI was comparable between men and women during one-year follow up.

关键词： Acute myocardial infarction Asian population Gender difference Percutaneous coronary intervention