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Multilayer Neural Network Based Speech Emotion Recognition for Smart Assistance

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Computers, Materials & Continua 2023年第1期74卷 1523-1540页

作者： Sandeep Kumar MohdAnul Haq Arpit Jain C.andy Jason Nageswara Rao Moparthi Nitin Mittal Zamil S.Alzamil Department of Computer Science and Engineering Koneru Lakshmaiah Education FoundationVaddeswaramAP522502India Department of Computer Science College of Computer and Information SciencesMajmaah University11952Al-MajmaahSaudi Arabia Department of Computer Science and Engineering Teerthanker Mahaveer UniversityMoradabadUttar Pradesh244001India Department of Electronics and Communication Engineering Sreyas Institute of Engineering and TechnologyHyderabad500068India University Centre for Research and Development Chandigarh UniversityMohali140413PunjabIndia

Day by day,biometric-based systems play a vital role in our daily *** paper proposed an intelligent assistant intended to identify emotions via voice message.A biometric system has been developed to detect human emotions based on voice recognition and control a few electronic peripherals for alert *** proposed smart assistant aims to provide a support to the people through buzzer and light emitting diodes(LED)alert signals and it also keep track of the places like households,hospitals and remote areas,*** proposed approach is able to detect seven emotions:worry,surprise,neutral,sadness,happiness,hate and *** key elements for the implementation of speech emotion recognition are voice processing,and once the emotion is recognized,the machine interface automatically detects the actions by buzzer and *** proposed system is trained and tested on various benchmark datasets,i.e.,Ryerson Audio-Visual Database of Emotional Speech and Song(RAVDESS)database,Acoustic-Phonetic Continuous Speech Corpus(TIMIT)database,Emotional Speech database(Emo-DB)database and evaluated based on various parameters,i.e.,accuracy,error rate,and *** comparing with existing technologies,the proposed algorithm gave a better error rate and less *** rate and time is decreased by 19.79%,5.13 *** the RAVDEES dataset,15.77%,0.01 s for the Emo-DB dataset and 14.88%,3.62 for the TIMIT *** proposed model shows better accuracy of 81.02%for the RAVDEES dataset,84.23%for the TIMIT dataset and 85.12%for the Emo-DB dataset compared to Gaussian Mixture Modeling(GMM)and Support Vector Machine(SVM)Model.

关键词： Speech emotion recognition classifier implementation feature extraction and selection smart assistance

Machine learning for weed–plant discrimination in agriculture 5.0:An in-depth review

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Artificial Intelligence in Agriculture 2023年第4期10卷 13-25页

作者： Filbert H.Juwono W.K.Wong Seema Verma Neha Shekhawat Basil andy Lease Catur Apriono Department of Electrical and Electronic Engineering Xi'an Jiaotong-Liverpool UniversitySuzhou 215123China Dpartment of Electrical and Computer Engineering Curtin University MalaysiaMiri 98009Malaysia School of Physical Sciences Banasthali VidyapithRajasthan 304022India Department of Electrical Engineering Universitas IndonesiaDepok 16424Indonesia

Agriculture 5.0 is an emerging concept where sensors,big data,Internet-of-Things(IoT),robots,and Artificial In-telligence(AI)are used for agricultural *** from Agriculture 4.0,robots and AI become the focus of the implementation in Agriculture *** of the applications of Agriculture 5.0 is weed management where robots are used to discriminate weeds from the crops or plants so that proper action can be performed to remove the *** paper discusses an in-depth review of Machine Learning(ML)techniques used for discriminating weeds from crops or *** specifically present a detailed explanation of five steps required in using ML algorithms to distinguish between weeds and plants.

关键词： Agriculture 5.0 Machine learning Unmanned aerial vehicle Weed-plant discrimination

Radicals and Kothe’s Conjecture for Skew PBW Extensions

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Communications in Mathematics and Statistics 2021年第2期9卷 119-138页

作者： Armando Reyes hector Suarez Departamento de Matematicas Universidad Nacional de ColombiaSede BogotaColombia Escuela de Matemáticas y Estadística Universidad Pedagogica y Tecnológica de ColombiaSede TunjaColombia

The aim of this paper is to investigate different radicals(Wedderburn radical,lower nil radical,Levitzky radical,upper nil radical,the set of all nilpotent elements,the sum of all nil left ideals)of the noncommutative rings known as skew Poincare–Birkhoff–Witt *** characterize minimal prime ideals of these rings and prove that the Kothe’s conjecture holds for these ***,we establish the transfer of several ring-theoretical properties(reduced,symmetric,reversible,2-primal)from the coefficients ring of a skew PBW extension to the extension itself.

关键词： Armendariz rings Kothe’s conjecture Skew PBW extensions

基于颜色计算和原位成分分析对紫色玉髓颜色成因的探究

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光谱学与光谱分析 2022年第6期42卷 1891-1898页

作者：罗恒沈锡田中国地质大学(武汉)珠宝学院湖北武汉430074

产于印度尼西亚的紫色葡萄状玉髓,具有特殊的球粒状外观和浓郁的紫罗兰体色,其双面抛光片在反射光照射下为紫色,透射光下则为棕黄色,且颜色浓集于球粒中心。为探究其颜色成因,进行了偏光显微镜和扫描电子显微镜结构观察,显微紫外-可见光... 详细信息

产于印度尼西亚的紫色葡萄状玉髓,具有特殊的球粒状外观和浓郁的紫罗兰体色,其双面抛光片在反射光照射下为紫色,透射光下则为棕黄色,且颜色浓集于球粒中心。为探究其颜色成因,进行了偏光显微镜和扫描电子显微镜结构观察,显微紫外-可见光谱,热处理以及LA-ICP-MS原位成分分析。玉髓具有纤维状核心--粗粒石英外壳的特殊结构,粗粒石英外壳粒度500μm左右,隐晶质部分则主要由粒度小于1μm的形状不规则的SiO_(2)颗粒组成。紫外-可见光谱显示紫色主要来源于540 nm左右的吸收峰,而黄色则由于谱线“左倾”产生的近紫外区及蓝光区强烈吸收所致。紫外-可见光谱使用塞尔迈耶尔方程修正表面反射误差、减去无吸收波段强度矫正仪器误差,并用最小二乘平滑扣除基线得到540 nm吸收峰的强度信息。计算玉髓在反射光下的紫色调及透射光下的黄色调的L^(*)a^(*)b^(*)值和E^(*)值定量表征颜色。热处理实验中,玉髓的紫色调在350℃左右开始褪去,紫外-可见光谱390和540 nm吸收峰消失,反射光和透射光下颜色差异减小,都呈现黄色调。随温度升高至400℃后,棕色调加深,出现478 nm左右的吸收峰。热处理过程中谱线吸收强度升高,“左倾”加剧,峰位“红移”。该现象与铁/二氧化硅纳米粒子(Fe/SiO_(2)NPs)生长过程中的谱形变化相似,有可能与玉髓内部与Fe有关的微细结构或包裹体在热处理过程中的变化有关。颜色参数结合原位成分分析,将数据采用标准分数(Z-score)归一化处理,比对紫色调的E^(*)值与540 nm吸收峰强度及元素含量之间的关系,发现540 nm吸收峰强度可很好的反映紫色的浓集程度,但紫色调与过渡金属元素含量的线性相关性却并不显著,黄色调的E^(*)值则与Fe元素含量具有近似的负相关性。Fe并不以杂质矿物的形式存在,元素含量这一因素也并不能完全决定玉髓的颜色,可能还受到Fe在玉髓中的存在形式,内部微细结构或包裹体等因素的影响。

关键词：紫色玉髓显微紫外-可见光谱 LA-ICP-MS 热处理

Physiological strategies of moult-migrating Black-necked Grebes(Podiceps nigricollis)in a polluted staging site according to blood chemistry

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Avian Research 2023年第3期14卷 453-459页

作者： Juan A.Amat Nico Varo Marta I.Sanchez andy J.Green Damaso Hornero-Mendez Juan Garrido-Fernandez Cristina Ramo Departamento de Ecología y Evolucion Estacion Biologica de Donana(EBD-CSIC)41092SevillaSpain Independent researcher 41010SevillaSpain Departamento de Biología de la Conservacion y Cambio Global Estacion Biologica de Donana(EBD-CSIC)41092SevillaSpain Departamento de Fitoquímica de Alimentos Instituto de la Grasa(IG-CSIC)41013SevillaSpain

After breeding,Black-necked Grebes(Podiceps nigricollis)perform a moult-migration to autumn hypersaline staging sites,where they moult the flight feathers and forage on superabundant brine shrimp(Artemia spp.)before leaving for wintering *** the stay in moulting sites,the grebes experience changes in organs and muscle size(atrophy,hypertrophy),and almost double their body mass,which has been suggested to act as an insurance against a collapse in prey availability in late *** two years we collected blood samples from hundreds of individuals at one of the most important European moulting sites(the Odiel marshes,SW Spain),which is a highly polluted area due to mining drainage and chemical *** assessed the potential effect of moulting stage,day of the year and body condition on 16 blood biochemical *** of the changes in prey availability and body composition of grebes,we expected some physiological adjustments during *** levels of cholesterol suggested that birds in active moult increased foraging effort to face the costs of *** was increased amount of lactate dehydrogenase,corresponding to periods of breast muscle *** in active moult augmented protein ingestion,likely to account for the requirements of feather *** also show that the probability of fasting due to low prey availability increased late in the moulting season,as demonstrated by an increase in plasmaβ-hydroxy-butyrate.

关键词： Blood biochemistry Eared grebe Fasting Feather replacement Odiel marshes Waterbird

Abnormal liver function tests associated with severe rhabdomyolysis

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World Journal of Gastroenterology 2020年第10期26卷 1020-1028页

作者： andy KH Lim Department of General Medicine Monash Health Department of Medicine School of Clinical Sciences Monash University

Rhabdomyolysis is a syndrome of skeletal muscle injury with release of cellular constituents such as potassium,phosphate,urate and intracellular proteins such as myoglobin into the circulation,which may cause complications including acute kidney injury,electrolyte disturbance and cardiac *** liver function tests are frequently observed in cases of severe ***,there is an increase in serum aminotransferases,namely aspartate aminotransferase and alanine *** raises the question of liver injury and often triggers a pathway of investigation which may lead to a liver ***,muscle can also be a source of the increased aminotransferase *** review discusses the dilemma of finding abnormal liver function tests in the setting of muscle injury and the potential implications of such an *** delves into some of the clinical and experimental evidence for correlating muscle injury to raised aminotransferases,and discusses pathophysiological mechanisms such as oxidative stress which may cause actual liver *** aminotransferases lack tissue specificity to allow clinicians to distinguish primary liver injury from muscle *** review also explores potential approaches to improve the accuracy of our diagnostic tools,so that excessive or unnecessary liver investigations can be avoided.

关键词： Rhabdomyolysis Muscle Creatine kinase Liver function tests Alanine aminotransferase Aspartate aminotransferase Aminotransferases

Complex Swift Hohenberg equation dissipative soliton fiber laser

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Photonics Research 2021年第6期9卷 1033-1038页

作者： ANKITA KHANOLKAR YIMIN ZANG andy CHONG Department of Electro-Optics and Photonics University of DaytonDaytonOhio 45469USA Department of Physics University of DaytonDaytonOhio 45469USA

Complex Swift Hohenberg equation(CSHE)has attracted intensive research interest over the years,as it enables realistic modeling of mode-locked lasers with saturable absorbers by adding a fourth-order term to the spectral *** researchers have reported a variety of numerical solutions of CSHE which reveal interesting pulse patterns and *** this work,we have demonstrated a CSHE dissipative soliton fiber laser experimentally using a unique spectral filter with a complicated transmission *** behavior and performance of the laser agree qualitatively with the numerical simulations based on *** findings bring insight into dissipative soliton dynamics and make our mode-locked laser a powerful testbed for observing dissipative solitons of CSHE,which may open a new course in ultrafast fiber laser research.

关键词： fiber laser soliton

Mechanics and safety issues in tailing-based backfill:A review

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International Journal of Minerals,Metallurgy and Materials 2020年第9期27卷 1165-1178页

作者： Xu Zhao andy Fourie Chong-chong Qi School of Civil Environmental and Mining EngineeringUniversity of Western AustraliaPerth 6009Australia School of Resources and Safety Engineering Central South UniversityChangsha 410083China

Voids(referred to as "stopes") are generally created during underground mining activities and can lead to both local and regional geotechnical instabilities. To assist in managing the stability of mining-related voids and improving the recovery of orebodies, tailing-based backfill technology has been widely used around the world. In the design of tailing-based backfill strategy, the specific function and engineering requirements of the filling are intimately dependent on the stress distribution within the backfilled stope. In this paper, the main mechanics involved in tailing-based backfill in underground mines, which include arching, consolidation, hydration process, and movement of surrounding rocks, are reviewed. Research on the safety of a barricade and stability of an exposed fill face are also presented. In conclusion, the backfilling process should be performed on the basis of a better understanding of the complicated interactions of the mechanisms of filling, consolidation, and hydration process(when cement is added).

关键词： tailing-based backfill arching consolidation barricade safety

Natural history and outcomes of patients with liver cirrhosis complicated by hepatic hydrothorax

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World Journal of Gastroenterology 2022年第35期28卷 5175-5187页

作者： Sarah Romero andy KH Lim Gurpreet Singh Chamani Kodikara Rachel Shingaki-Wells Lynna Chen Samuel Hui Marcus Robertson Department of Gastroenterology Monash HealthClayton 3168VictoriaAustralia Department of General Medicine School of Clinical SciencesMonash UniversityClayton 3168VictoriaAustralia Gastroenterology and Liver Transplant Unit Austin HealthHeidelberg 3084VictoriaAustralia

BACKGROUNDHepatic hydrothorax (HH) is an uncommon and difficult-to-manage complicationof cirrhosis with limited treatment *** define the clinical outcomes of patients presenting with HH managed withcurrent standards-of-care and to identify factors associated with *** patients with HH presenting to 3 tertiary centres from 2010 to 2018 wereretrospectively identified. HH was defined as pleural effusion in the absence ofcardiopulmonary disease. The primary outcomes were overall and transplant-freesurvival at 12-mo after the index admission. Cox proportional hazards analysiswas used to determine factors associated with the primary ***, 84 patients were included (mean age, 58 years) with a mean model forend-stage liver disease score of 29. Management with diuretics alone achievedlong-term resolution of HH in only 12% patients. At least one thoracocentesis wasperformed in 73.8% patients, transjugular intrahepatic portosystemic shuntinsertion in 11.9% patients and 33% patients received liver transplantation within12-mo of index admission. Overall patient survival and transplant-free survival at12 mo were 68% and 41% respectively. At multivariable analysis, current smoking [hazard ratio (HR) = 8.65, 95% confidence interval (CI): 3.43-21.9, P < 0.001) and acute kidneyinjury (AKI) (HR = 2.91, 95%CI: 1.21-6.97, P = 0.017) were associated with a significantly increasedrisk of *** patients with HH are a challenging population with a poor 12-mo survival despitecurrent treatments. Current smoking and episodes of AKI are potential modifiable factors affectingsurvival. HH is often refractory of diuretic therapy and transplant assessment should beconsidered in all cases.

关键词： Cirrhosis Portal hypertension Hepatic hydrothorax Ascites Liver transplantation