The UV absorption spectra of o-naphthol,α-naphthylamine,2,7-dihydroxy naphthalene,2,4-dimethoxy ben- zaldehyde and methyl salicylate,overlap severely;therefore it is impossible to determine them in mixtures by tradit...The UV absorption spectra of o-naphthol,α-naphthylamine,2,7-dihydroxy naphthalene,2,4-dimethoxy ben- zaldehyde and methyl salicylate,overlap severely;therefore it is impossible to determine them in mixtures by traditional spectrophotometric methods.In this paper,the partial least-squares(PLS)regression is applied to the simultaneous determination of these compounds in mixtures by UV spectrophtometry without any pretreatment of the samples.Ten synthetic mixture samples are analyzed by the proposed method.The mean recoveries are 99.4%,996%,100.2%,99.3% and 99.1%,and the relative standard deviations(RSD) are 1.87%,1.98%,1.94%,0.960% and 0.672%,respectively.展开更多
An array composed of sixteen gas sensors was constructed to analyze gas mixtures quantitatively. The data of responses from the sensor array to ethane, propane and propylene were treated by three-layer ANN with BP alg...An array composed of sixteen gas sensors was constructed to analyze gas mixtures quantitatively. The data of responses from the sensor array to ethane, propane and propylene were treated by three-layer ANN with BP algorithms and PLS. The analytical results indicated that the concentration predicted with ANN is better than that with PLS. The average prediction errors for ethane, propane and propylene were 5.11%, 8.28%, 2.64%, respectively.展开更多
Natural disasters are common threats to all human beings. With the background of global climate change, major natural disasters have occurred frequently in the last few years and caused heavy casualties with high prop...Natural disasters are common threats to all human beings. With the background of global climate change, major natural disasters have occurred frequently in the last few years and caused heavy casualties with high property losses. Satellite Earth ob-servation has been playing a more and more important role in monitoring展开更多
This paper reviews the current state of knowledge on psychological interventions with empirical evidence of efficacy in treating common psychiatric and behavioral disorders in people with intellectual disability(ID)at...This paper reviews the current state of knowledge on psychological interventions with empirical evidence of efficacy in treating common psychiatric and behavioral disorders in people with intellectual disability(ID)at all stages of their life.We begin with a brief presentation of what is meant by psychiatric and behavioral disorders in this population,along with an explanation of some of the factors that contribute to the increased psychosocial vulnerability of this group to present with these problems.We then conduct a review of empirically supported psychological therapies used to treat psychiatric and behavioral disorders in people with ID.The review is structured around the three generations of therapies:Applied behavior analysis(e.g.,positive behavior support),cognitive behavioral therapies(e.g.,mindfulness-based cognitive therapy),and contextual therapies(e.g.,dialectical behavior therapy).We conclude with some recommendations for professional practice in the fields of ID and psychiatry.展开更多
文摘The UV absorption spectra of o-naphthol,α-naphthylamine,2,7-dihydroxy naphthalene,2,4-dimethoxy ben- zaldehyde and methyl salicylate,overlap severely;therefore it is impossible to determine them in mixtures by traditional spectrophotometric methods.In this paper,the partial least-squares(PLS)regression is applied to the simultaneous determination of these compounds in mixtures by UV spectrophtometry without any pretreatment of the samples.Ten synthetic mixture samples are analyzed by the proposed method.The mean recoveries are 99.4%,996%,100.2%,99.3% and 99.1%,and the relative standard deviations(RSD) are 1.87%,1.98%,1.94%,0.960% and 0.672%,respectively.
文摘An array composed of sixteen gas sensors was constructed to analyze gas mixtures quantitatively. The data of responses from the sensor array to ethane, propane and propylene were treated by three-layer ANN with BP algorithms and PLS. The analytical results indicated that the concentration predicted with ANN is better than that with PLS. The average prediction errors for ethane, propane and propylene were 5.11%, 8.28%, 2.64%, respectively.
文摘Natural disasters are common threats to all human beings. With the background of global climate change, major natural disasters have occurred frequently in the last few years and caused heavy casualties with high property losses. Satellite Earth ob-servation has been playing a more and more important role in monitoring
基金Supported by Ministry of Science,Innovation and Universities,and the State Research Agency,No.PID2019-105737RBI00/AEI/10.13039/501100011033。
文摘This paper reviews the current state of knowledge on psychological interventions with empirical evidence of efficacy in treating common psychiatric and behavioral disorders in people with intellectual disability(ID)at all stages of their life.We begin with a brief presentation of what is meant by psychiatric and behavioral disorders in this population,along with an explanation of some of the factors that contribute to the increased psychosocial vulnerability of this group to present with these problems.We then conduct a review of empirically supported psychological therapies used to treat psychiatric and behavioral disorders in people with ID.The review is structured around the three generations of therapies:Applied behavior analysis(e.g.,positive behavior support),cognitive behavioral therapies(e.g.,mindfulness-based cognitive therapy),and contextual therapies(e.g.,dialectical behavior therapy).We conclude with some recommendations for professional practice in the fields of ID and psychiatry.
