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Some results of modeling D-D seismogenic pattern by the fracture model experiment of large-scale rock samples(I) 被引量:2
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作者 陆阳泉 赵家骝 +2 位作者 钱家栋 王玉祥 刘建毅 《Acta Seismologica Sinica(English Edition)》 CSCD 1998年第2期95-102,共8页
sing the natural limestone samples taken from the field with dimension of 500 mm×500 mm×1 000 mm, the D-D (dilatancy-diffusion) seismogeny pattern was modeled under the condition of water injection, which ob... sing the natural limestone samples taken from the field with dimension of 500 mm×500 mm×1 000 mm, the D-D (dilatancy-diffusion) seismogeny pattern was modeled under the condition of water injection, which observes the time-space evolutionary features about the relative physics fields of the loaded samples from deformation, formation of microcracks to the occurrence of main rupture. The results of observed apparent resistivity show: ① The process of the deformation from microcrack to main rupture on the loaded rock sample could be characterized by the precursory spatial-temporal changes in the observation of apparent resistivity; ② The precursory temporal changes of observation in apparent resistivity could be divided into several stages, and its spatial distribution shows the difference in different parts of the rock sample; ③ Before the main rupture of the rock sample the obvious ″tendency anomaly′ and ′short-term anomaly″ were observed, and some of them could be likely considered as the ″impending earthquake ″anomaly precursor of apparent resistivity. The changes and distribution features of apparent resistivity show that they are intrinsically related to the dilatancy phenomenon of the loaded rock sample. Finally, this paper discusses the mechanism of resistivity change of loaded rock sample theoretically. 展开更多
关键词 fracture experiment of large-scale rock sample D-D seismogenic pattern apparent resistivity
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Analytical quality-by-design approach for sample treatment of BSA-containing solutions 被引量:2
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作者 Lien Taevernier Evelien Wynendaele +1 位作者 Matthias D'Hondt Bart De Spiegeleer 《Journal of Pharmaceutical Analysis》 SCIE CAS 2015年第1期27-32,共6页
The sample preparation of samples conlaining bovine serum albumin(BSA),e.g..as used in transdermal Franz diffusion cell(FDC) solutions,was evaluated using an analytical qualily-by-design(QbD)approach.Traditional... The sample preparation of samples conlaining bovine serum albumin(BSA),e.g..as used in transdermal Franz diffusion cell(FDC) solutions,was evaluated using an analytical qualily-by-design(QbD)approach.Traditional precipitation of BSA by adding an equal volume of organic solvent,often successfully used with conventional HPLC-PDA,was found insufficiently robust when novel fused-core HPLC and/or UPLC-MS methods were used.In this study,three factors(acetonitrile(%).formic acid(%) and boiling time(min)) were included in the experimental design to determine an optimal and more suitable sample treatment of BSAcontaining FDC solutions.Using a QbD and Derringer desirability(D) approach,combining BSA loss,dilution factor and variability,we constructed an optimal working space with the edge of failure defined as D〈0.9.The design space is modelled and is confirmed to have an ACN range of 83 ± 3% and FA content of 1 ±0.25%. 展开更多
关键词 Bovine serum albumin(BSA)solutions Franz diffusion cell(FDC) Analytical quality-by-design(QbD) Sample preparation Design of experiment(DOE) Derringer desirability(D)
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Estimation of Durability of Profit of Small and Medium Enterprises by Statistical Matching
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作者 Yukiko KURIHARA 《Journal of Mathematics and System Science》 2015年第5期173-182,共10页
This study computes the durability of Return on Assets (ROA) in small and medium enterprises from different sample datasets. Utilizing information from the Financial Statements Statistics of Corporations by Industry... This study computes the durability of Return on Assets (ROA) in small and medium enterprises from different sample datasets. Utilizing information from the Financial Statements Statistics of Corporations by Industry, it verifies the precision of correlation coefficients using the Non-iterative Bayesian-based Imputation (NIBAS) and multiple imputation method for all combinations of common variables with auxiliary files. The following are the three important findings of this paper. First, statistical matching estimates of higher precision can be obtained using key variable sets with higher canonical correlation coefficients. Second, even if the key variable sets have high canonical correlation coefficients, key variables that are correlated extremely strongly with target variables and have high kurtosis should not be used. Finally, using auxiliary flies can improve the precision of statistical matching estimates. Accordingly, the durability of ROA in small and medium enterprises is computed. The author finds that the series of ROA correlation fluctuates for smaller enterprises compared to larger ones, and thus, the vulnerability of ROA in small and medium enterprises can be clarified via statistical matching. 展开更多
关键词 Bayesian regression imputation Multiple imputation Canonical correlation coefficient sampling experiment.
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Seed and Wasp Production in the Mutualism of Figs and Fig Wasps 被引量:1
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作者 YaoJin-yan ZhaoNan-xian +3 位作者 ChenYi-zhu JiaXiao-cheng DengYuan YuHui 《Forestry Studies in China》 CAS 2005年第1期25-28,共4页
Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ov... Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ovaries which can either produce one seed or one wasp. From observation on Ficus virens Ait., we showed that female flowers with outer layer of ovaries (near to the wall of syconium) had no significant difference from that with inner and interval layer of ovaries (near to the syconium cavity), in which most seeds and wasps were produced. This meant that fig tree provided the same potential resource for seed and wasps production. Observation indicated that there was usually only one foundress in syconium at female flower phase and no com- petition pollinators. Measurement of the style length of female flowers and the ovipositor of pollinators indicated that most ovaries could be reached by pollinator’s ovipositor. However, at the male flower phase, production of seeds was significantly more than that of wasps including non-pollinating wasps but there was no significant difference between seed and pollinating wasp production when without non-pollinating wasps produced. This result indicated that non-pollinating wasps competed ovaries not with seeds but with pollinating wasps for ovipositing. Bagged experiment showed that the sampling fig species was not self-sterile which was important for figs and wasps to survive bad season. Seed production in self-pollinated figs was not significantly different from total wasps in- cluding non-pollinating ones. This might be related with the weaker competition among wasps since bagged figs were not easy to reach by wasps from outside. 展开更多
关键词 FICUS Ficus wasp mutualism conflicts seed and wasp production Seed and Wasp Production in the Mutualism of Figs and Fig Wasps Yao Jin-yan1 2 Zhao Nan-xian1 Chen Yi-zhu1* Jia Xiao-cheng1 2 Deng Yuan1 2 Yu Hui1 2 1South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 P. R. China 2Graduate School of the Chinese Academy of Sciences Beijing 100039 P. R. China ABSTRACT Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ovaries which can either produce one seed or one wasp. From observation on Ficus virens Ait. we showed that female flowers with outer layer of ovaries (near to the wall of syconium) had no significant difference from that with inner and interval layer of ovaries (near to the syconium cavity) in which most seeds and wasps were produced. This meant that fig tree provided the same potential resource for seed and wasps production. Observation indicated that there was usually only one foundress in syconium at female flower phase and no com- petition pollinators. Measurement of the style length of female flowers and the ovipositor of pollinators indicated that most ovaries could be reached by pollinator’s ovipositor. However at the male flower phase production of seeds was significantly more than that of wasps including non-pollinating wasps but there was no significant difference between seed and pollinating wasp production when without non-pollinating wasps produced. This result indicated that non-pollinating wasps competed ovaries not with seeds but with pollinating wasps for ovipositing. Bagged experiment showed that the sampling fig species was not self-sterile which was important for figs and wasps to survive bad season. Seed production in self-pollinated figs was not significantly different from total wasps in- cluding non-pollinating
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ARISTOTLE SAID "HAPPINESS IS A STATE OF ACTIVITY" - PREDICTING MOOD THROUGH BODY SENSING WITH SMARTWATCHES
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作者 Peter A Gloor Andrea Fronzetti Colladon +2 位作者 Francesca Grippa Pascal Budner Joscha Eirich 《Journal of Systems Science and Systems Engineering》 SCIE EI CSCD 2018年第5期586-612,共27页
We measure and predict states of Activation and Happiness using a body sensing applicationconnected to smartwatches. Through the sensors of commercially available smartwatches we collectindividual mood states and corr... We measure and predict states of Activation and Happiness using a body sensing applicationconnected to smartwatches. Through the sensors of commercially available smartwatches we collectindividual mood states and correlate them with body sensing data such as acceleration, heart rate, lightlevel data, and location, through the GPS sensor built into the smartphone connected to the smartwatchWe polled users on the smartwatch for seven weeks four times per day asking for their mood state. Wefound that both Happiness and Activation are negatively correlated with heart beats and with the levelsof light. People tend to be happier when they are moving more intensely and are feeling less activatedduring weekends. We also found that people with a lower Conscientiousness and Neuroticism andhigher Agreeableness tend to be happy more frequently. In addition, more Activation can be predictedby lower Openness to experience and higher Agreeableness and Conscientiousness. Lastly, we find thattracking people's geographical coordinates might play an important role in predicting Happiness andActivation. The methodology we propose is a first step towards building an automated mood trackingsystem, to be used for better teamwork and in combination with social network analysis studies. 展开更多
关键词 Body sensing systems mood tracking smartwatch experience sampling HAPPINESS ACTIVATION
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Daily loneliness and social media use:The role of fear of missing out
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作者 Chengjin Li Moran Wang +1 位作者 Yongjuan Li Yaoshan Xu 《PsyCh Journal》 2023年第3期467-469,共3页
This study explored the effect of daily loneliness on social media use and the mediating role of fear of missing out(FoMO).A total of 106 college students participated in a 2-week experience sampling study,yielding 11... This study explored the effect of daily loneliness on social media use and the mediating role of fear of missing out(FoMO).A total of 106 college students participated in a 2-week experience sampling study,yielding 1194 data points.The results showed that daily loneliness predicted social media use via FoMO. 展开更多
关键词 experience sampling method fear of missing out LONELINESS social media use
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Do daily interaction patterns differ between empty nesters and nonempty nesters?The role of different interaction partners in a Chinese sample
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作者 Xiying Li Zepei Ma +2 位作者 Xingyu Zhang Xiaohui Ma Zhongling Pi 《PsyCh Journal》 2023年第4期572-583,共12页
The empty nest is a phase of life that most parents will experience when their children grow up and leave home.However,little attention has been given to changes that take place in empty nesters’daily patterns of int... The empty nest is a phase of life that most parents will experience when their children grow up and leave home.However,little attention has been given to changes that take place in empty nesters’daily patterns of interaction.This study aimed to examine the differences between empty nesters and non-empty nesters in relation to their daily interactions and the affect of various social partners.A total of 208 participants were recruited via convenience sampling;they were asked to record their daily interactions using the Rochester Interaction Record and to rate their affect after each interaction using the Positive Affect–Negative Affect Scale.The results showed that daily interactions were related to a higher increase of positive affect in empty nesters than in non-empty nesters when interactions were with adult children.In contrast,daily interactions of non-empty nesters were related to a higher decrease in negative affect when the interactions were with friends,neighbors,and strangers.These findings indicate that the patterns of daily interactions differ between empty nesters and non-empty nesters.Specifically,the daily interactions of empty nesters were seen to be more related to a higher increase in positive affect,whereas the daily interactions of non-empty nesters were seen to be more related to a higher decrease in negative affect.This study showed the differences in daily interaction patterns between empty and non-empty nesters across diverse social partners.The findings on the daily interaction patterns have some implications for older adults:(1)empty nesters can improve daily interaction with adult children,relatives,and colleagues for a higher positive affect;(2)non-empty nesters can improve daily interactions with friends,neighbors,and strangers to relieve their negative affect. 展开更多
关键词 daily interaction empty nest experience sampling method negative affect positive affect
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