A New Strategy for Objective Estimation of the Quality of Audio Signals

2004 ◽  
Vol 2 (3) ◽  
pp. 162-167
Author(s):  
J.G.A. Barbedo ◽  
A. Lopez
Keyword(s):  
2004 ◽  
Vol 2 (3) ◽  
pp. 6-11
Author(s):  
J. Garcia Arnal Barbedo ◽  
A. Lopes
Keyword(s):  

2020 ◽  
Vol 16 (3) ◽  
pp. 303-311
Author(s):  
Qi Huang ◽  
Chunsong Cheng ◽  
Lili Li ◽  
Daiyin Peng ◽  
Cun Zhang

Background: Scutellariae Radix (Huangqin) is commonly processed into 3 products for different clinical applications. However, a simple analytical method for quality control has rarely been reported to quickly estimate the degree of processing Huangqin or distinguish differently processed products or unqualified Huangqin products. Objective: To study a new strategy for quality control in the processing practice of Huangqin. Methods: Seven kinds of flavonoids that mainly exist in Huangqin were determined by HPLC-DAD. Chromatographic fingerprints were established to study the variation and discipline of the 3 processed products of Huangqin. PCA and OPLS-DA were used to classify differently processed products of Huangqin. Results: The results showed that baicalin and wogonoside were the main components in the crude and the alcohol Huangqin herb while baicalein and wogonin mainly existed in carbonized Huangqin. The results of mathematical statistics revealed that the processing techniques can make the quality of medicinal materials more uniform. Conclusion: This multivariate monitoring strategy is suitable for quality control in the processing of Huangqin.


HortScience ◽  
2017 ◽  
Vol 52 (3) ◽  
pp. 450-456 ◽  
Author(s):  
Jason E. Stout ◽  
Joan R. Davenport ◽  
R. Troy Peters

Drought conditions in the western United States have limited water availability for the irrigation of agricultural products. This can have a dramatic impact on yield and quality of specialty perennial crops, such as juice grapes (Vitis labruscana Bailey). Washington State juice grape industry typically irrigates to 100% of crop-specific evapotranspiration (ETc) throughout the season to minimize yield loss. However, as conditions have limited water availability, growers need a new strategy to cope with the limited water supply. Regulated deficit irrigation (RDI) applies less water than plant ETc and has been shown to improve fruit quality in red wine grapes (Vitis vinifera). The objectives of this study were to evaluate the effects of RDI treatments on the yield and quality of ‘Concord’ juice grapes as compared with current commercial practice. The treatments reduced the amount of water applied between bloom and veraison by 25% (−25%), 33% (−33%), and 45% (−45%) from the control application. The results of this 4-year study initially indicated a dramatic decrease in yield in the −45% treatment (7.5 Mg/ha) as compared with the control treatment (19.2 Mg/ha); however, yield for the RDI treatments recovered in the subsequent seasons and was not statically different from the control. There were no statistical differences in fruit quality between treatments. This indicates that RDI has the potential to decrease water applied between bloom and veraison without impacting fruit quality; however, to avoid a sudden decrease in yield, it would be necessary to gradually reduce water applications over several years.


2022 ◽  
Vol 21 (2) ◽  
pp. 290-302
Author(s):  
Fu'adi Fu'adi ◽  
Putu Sudira ◽  
Kun Setyaning Astuti

Idris Sardi is known as a music maestro in Indonesia. This study aims to reveal the influence of Idris Sardi on the development of music and its implications in music education. This study uses a qualitative method with a narrative approach. The data were collected through observation, in-depth interviews, and documentation. The research informants were carefully selected from the family, violin students, and colleagues of Idris Sardi in Jakarta and Bogor, West Java. The data were analyzed by organizing data and creating codes, describing codes in chronological categories and themes, developing interpretations, and visualizing data. The results showed that Idris Sardi was influential in developing (1) keroncong music by varying the tempo and expanding the repertoire; (2) the violin playing techniques included unique characters such as vibrato, glissando, and octave variations; (3) ethnic and popular music were made through orchestrations and collaboration with orchestral music. The implications in music vocational education were (1) problem-based learning by creating a new keroncong style to be accepted by society; (2) the improvement capability by exploring skills to play the violin; (3) life-based-learning by raising local and popular music to be qualified while enhancing the level of society’s music appreciation. In conclusion, Idris Sardi provided a strong influence on the music development in Indonesia, and the implication could be a new strategy to improve the quality of music education.


Author(s):  
Kazuhiro Kondo

This chapter proposes two data-hiding algorithms for stereo audio signals. The first algorithm embeds data into a stereo audio signal by adding data-dependent mutual delays to the host stereo audio signal. The second algorithm adds fixed delay echoes with polarities that are data dependent and amplitudes that are adjusted such that the interchannel correlation matches the original signal. The robustness and the quality of the data-embedded audio will be given and compared for both algorithms. Both algorithms were shown to be fairly robust against common distortions, such as added noise, audio coding, and sample rate conversion. The embedded audio quality was shown to be “fair” to “good” for the first algorithm and “good” to “excellent” for the second algorithm, depending on the input source.


Author(s):  
Bob Woods

This chapter documents the developments in Wales relating to a National Dementia Vision and Strategy. A new Strategy is to appear by December 2016. While activity and progress are evident in many areas, much remains to be done. Wales benefits from having an Older People’s Commissioner, a statutory voice for older people, including those living with dementia, and from its rich cultural, linguistic, and artistic heritage, with active third-sector organizations. Like many countries, Wales has had well-publicized scandals in relation to quality of care in hospitals and care homes, which have provided learning and impetus for development. Compared with other parts of the United Kingdom, dementia diagnosis rates in Wales appear low and are now the subject of government targets. The new Strategy will need to fully engage with people living with dementia in order to address these challenges, while building on the growing social movement of dementia-friendly communities.


2019 ◽  
Vol 26 (2) ◽  
pp. 1305-1320 ◽  
Author(s):  
Alberto De Ramón Fernández ◽  
Daniel Ruiz Fernández ◽  
Yolanda Sabuco García

Business Process Management is a new strategy for process management that is having a major impact today. Mainly, its use is focused on the industrial, services, and business sector. However, in recent years, it has begun to apply for optimizing clinical processes. So far, no studies that evaluate its true impact on the healthcare sector have been found. This systematic review aims to assess the results of the application of Business Process Management methodology on clinical processes, analyzing whether it can become a useful tool to improve the effectiveness and quality of processes. We conducted a systematic literature review using ScienceDirect, Web of Science, Scopus, PubMed, and Springer databases. After the electronic search process in different databases, 18 articles met the pre-established requirements. The findings support the use of Business Process Management as an effective methodology to optimize clinical processes. Business Process Management has proven to be a feasible and useful methodology to design and optimize clinical processes, as well as to automate tasks. However, a more comprehensive follow-up of this methodology, better technological support, and greater involvement of all the clinical staff are factors that play a key role for the development of its true potential.


2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Yun-xia Li ◽  
Xiao-hong Gong ◽  
Mei-chen Liu ◽  
Cheng Peng ◽  
Peng Li ◽  
...  

Polygonum multiflorum Thunb. (HSW) is widely used as herb medicine and health food additive. Recently, a series of HSW-induced hepatotoxicities have been reported and many studies have been carried out to investigate it. But contradictory conclusions were drawn that might be caused by the inconsistent quality of market decoction pieces. Therefore, the HSW decoction pieces quality was evaluated with a developed novel method in the paper. 25 batches of raw HSW (RHSW) and 21 batches of processed HSW (PHSW) samples were purchased from different provinces of China. HPLC determination was performed to identify and detect the contents of 16 chemical compounds in herbal material. Fingerprint similarity was analyzed using chromatography information and the results showed that most herbs were in good similarity. Then, a comprehensive evaluation strategy based on principal component analysis with representative quality control indicators was developed to evaluate the quality of HSW samples. And the rationality of the developed method was verified by HCA analysis. The results showed that the herb from Dabashan, Sichuan Province, no matter RHSW or PHSW had the best quality. Different representative components were selected for RHSW or PHSW decoction pieces which might be caused by the chemical reaction during processing. And most PHSW were unqualified according to the requirement of Chinese Pharmacopeia which might take the responsibility for the toxicity of HSW.


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