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Dietary L-proline supplementation ameliorates autism-like behaviors and modulates gut microbiota in the valproic acid-induced mouse model of autism spectrum disorder
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作者 Jingjing Fang Ruixuan Geng +2 位作者 Seong-Gook Kang Kunlun Huang Tao Tong 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第5期2889-2905,共17页
The effective intervention strategy for autism spectrum disorder(ASD)are currently limited.Herein,we attempted to evaluate the potential of L-proline(Pro),a multifunctional amino acid,in ameliorating autismlike behavi... The effective intervention strategy for autism spectrum disorder(ASD)are currently limited.Herein,we attempted to evaluate the potential of L-proline(Pro),a multifunctional amino acid,in ameliorating autismlike behaviors and clarify the molecular mechanisms involved by using the typical valproic acid(VPA)-induced mouse model of ASD.Pro significantly attenuates repetitive behaviors and social dysfunction in ASD mice.The correlation analysis revealed that the beneficial effects of Pro on autism-like behaviors are related to the modulation of gut microbiota structure and composition.The histological analysis revealed that Pro could reverse the decrease of Nissl-positive cells in the prefrontal cortex(PFC)induced by VPA exposure.RNA sequencing demonstrated that Pro can also alter the PFC transcriptomic profile distinguished by the regulation of genes involved in Parkinson disease,neuroactive ligand-receptor interaction,oxidative phosphorylation,and mitogen activated protein kinase signaling pathway.Overall,dietary Pro supplementation may be a promising intervention strategy for ASD. 展开更多
关键词 L-PROLINE Autism spectrum disorder Gut microbiota Prefrontal cortex behavior
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GREEN'S FUNCTION AND THE POINTWISE BEHAVIORS OF THE VLASOV-POISSON-FOKKER-PLANCK SYSTEM
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作者 钟明溁 《Acta Mathematica Scientia》 SCIE CSCD 2023年第1期205-236,共32页
The pointwise space-time behaviors of the Green’s function and the global solution to the Vlasov-Poisson-Fokker-Planck(VPFP)system in three dimensional space are studied in this paper.It is shown that the Green’s fu... The pointwise space-time behaviors of the Green’s function and the global solution to the Vlasov-Poisson-Fokker-Planck(VPFP)system in three dimensional space are studied in this paper.It is shown that the Green’s function consists of the diffusion waves decaying exponentially in time but algebraically in space,and the singular kinetic waves which become smooth for all(t,x,v)when t>0.Furthermore,we establish the pointwise space-time behaviors of the global solution to the nonlinear VPFP system when the initial data is not necessarily smooth in terms of the Green’s function. 展开更多
关键词 Vlasov-Poisson-Fokker-Planck system Green’s function pointwise behavior spectrum structure
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Efficacy of Children Neuropsychological and Behavioral Scale in Screening for Autism Spectrum Disorders through a Combination of Developmental Surveillance
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作者 Jin-hui LI Jin-zhu ZHAO +9 位作者 Li HUA Xiao-lin HU Li-na TANG Ting YANG Tian-yi HE Chen HU Xiao-qun YU Ting-ting XIONG Dan-dan WU Yan HAO 《Current Medical Science》 SCIE CAS 2023年第3期592-601,共10页
Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveil... Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveillance.Methods All participants were evaluated by the CNBS-R2016 and Gesell Developmental Schedules(GDS).Spearman’s correlation coefficients and Kappa values were obtained.Taking GDS as a reference assessment,the performance of the CNBS-R2016 for detecting the developmental delays of children with ASD was analyzed with receiver operating characteristic(ROC)curves.The efficacy of the CNBS-R2016 to screen for ASD was explored by comparing Communication Warning Behavior with Autism Diagnostic Observation Schedule,Second Edition(ADOS-2).Results In total,150 children aged 12–42 months with ASD were enrolled.The developmental quotients of the CNBS-R2016 were correlated with those of the GDS(r=0.62–0.94).The CNBS-R2016 and GDS had good diagnostic agreement for developmental delays(Kappa=0.73–0.89),except for Fine Motor.There was a significant difference between the proportions of Fine Motor,delays detected by the CNBS-R2016 and GDS(86.0%vs.77.3%).With GDS as a standard,the areas under the ROC curves of the CNBS-R2016 were above 0.95 for all the domains except Fine Motor,which was 0.70.In addition,the positive rate of ASD was 100.0%and 93.5%when the cut-off points of 7 and 12 in the Communication Warning Behavior subscale were used,respectively.Conclusion The CNBS-R2016 performed well in developmental assessment and screening for children with ASD,especially by Communication Warning Behaviors subscale.Therefore,the CNBS-R2016 is worthy of clinical application in children with ASD in China. 展开更多
关键词 autism spectrum disorder Children Neuropsychological and behavioral Scale screening for autism spectrum disorder developmental assessment
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Fourier Power Spectrum Analysis of Exons for the Period-3 Behavior
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作者 YuanXinTIAN ChaoCHEN +3 位作者 XiaoYongZOU JianDingQIU PeiXiangCAI JinYuanMO 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第7期939-942,共4页
The period-3 behaviors of 105 exons from 20 genes in human were studied by Fourier power spectrum. The results indicated that not all exons show the period-3 behavior. The exons were adjusted in order to make them acc... The period-3 behaviors of 105 exons from 20 genes in human were studied by Fourier power spectrum. The results indicated that not all exons show the period-3 behavior. The exons were adjusted in order to make them accord with the order of the protein translated, and we found that the period-3 character is relation to the length of exons and the bases distribution in the three codon position. Furthermore, as long as the exons with period-3 behavior accord with the order of protein translated, they would exhibit the synonymous codons usage preference, and the codons with g/c at the third position are used in higher frequency. The results are significant to the gene prediction and the research on the introns. 展开更多
关键词 Period-3 behavior Fourier power spectrum exons.
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The effect of activating fluxes on the cathode spots in the activating TIG welding 被引量:1
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作者 黄勇 王伯洋 +4 位作者 郭建航 刘永刚 黄健康 樊丁 余淑荣 《China Welding》 CAS 2023年第1期7-17,共11页
The cathode spots are a common phenomenon in the TIG(tungsten inert gas)welding process.However,it is rarely observed in the activating TIG welding process.This research is mainly focused on the effect of activating f... The cathode spots are a common phenomenon in the TIG(tungsten inert gas)welding process.However,it is rarely observed in the activating TIG welding process.This research is mainly focused on the effect of activating flux on cathode spots in the activating TIG welding.The characteristics and behaviors of cathode spots were investigated in activating TIG welding by the high-speed camera and the spectrograph.Three kinds of oxide(TiO_(2),SiO_(2),MnO_(2))and two halide(MnCl_(2),CaF_(2))activating fluxes are used in the activating TIG welding process.The results show that differ from the TIG welding,the oxide activating flux increases the number of cathode spots and decreases the velocity.The effect is the opposite for the halide activating flux.Moreover,the number of spots no longer varies with the current except TiO2 activating flux.As the temperature of the weld pool surface increases the spot moves away from the center.But this rule is not valid when silica and manganese compounds activating fluxes are used.The variation of cathode spots is caused by the oxide film reformed and the distribution of weld slag.The formation mechanism of cathode spots might be the impact of ions on the cathode surface and the strong electric field formed near the cathode surface. 展开更多
关键词 cathode spots behaviors activating tungsten inert gas welding high-speed photography spectrum
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Predictors of antenatal health service utilization among left-behind wives of male outmigrants:Evidence from Patna District,India
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作者 Fahad Afzal Arindam Das 《Asian pacific Journal of Reproduction》 2023年第5期220-228,共9页
Objective:To analyze the sociological support system available for left-behind wives of male outmigrants and develop a model that predicts the antenatal care(ANC)services utilization.Methods:A cross-sectional survey w... Objective:To analyze the sociological support system available for left-behind wives of male outmigrants and develop a model that predicts the antenatal care(ANC)services utilization.Methods:A cross-sectional survey was conducted in rural regions of the Patna district,India.The sample size(n=328)was estimated using Cochran’s formula.Five parameters of the social support system were identified(autonomy,spousal support,family support,social circle support,and government support).The score for each was calculated as a composite score using multiple variables;these served as independent variables.The respondents were categorized as efficient and non-efficient users of ANC service based on established criteria.Results:The regression results showed that four out of five social parameters had a significant effect on ANC behavior.Spousal support was the strongest predictor(standardized regression coefficient β=0.57,OR 1.16,95%CI 1.08-1.79,P=0.007).Government support was found to be the second strongest predictor(β=0.40,OR 1.49,95%CI 1.04-2.14,P=0.027),followed by family support(β=0.31,OR 1.36,95%CI 1.23-2.57,P=0.034)and autonomy(β=0.11,OR 1.32,95%CI 1.11-2.26,P=0.030).The social circle support was found to be non-significant in predicting ANC behavior(P>0.05).Conclusions:The policymakers could focus on the identified predictors to strengthen and modify the existing policies for leftbehind wives of male outmigrants.The need of the hour is a strategic intervention for behavioral modification of not only the left-behind wives but also their family members along with reinforcement of the existing social-security net.One strategy we suggest is to launch an awareness campaign focusing on husbands(male outmigrants)and family members. 展开更多
关键词 Antenatal health Reproductive behavior Antenatal care utilization South-East Asia Left-behind wife
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Neurodevelopmental Timing of Ethanol Exposure May Contribute to Observed Heterogeneity of Behavioral Deficits in a Mouse Model of Fetal Alcohol Spectrum Disorder (FASD) 被引量:1
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作者 Katarzyna Mantha Morgan Kleiber Shiva Singh 《Journal of Behavioral and Brain Science》 2013年第1期85-99,共15页
Maternal drinking during pregnancy can result in a wide spectrum of cognitive and behavioral abnormalities termed fetal alcohol spectrum disorders (FASD). The heterogeneity observed in FASD-related phenotypes can be a... Maternal drinking during pregnancy can result in a wide spectrum of cognitive and behavioral abnormalities termed fetal alcohol spectrum disorders (FASD). The heterogeneity observed in FASD-related phenotypes can be attributed to a number of environmental and genetic factors;however, ethanol dose and timing of exposure may have significant influences. Here, we report the behavioral effects of acute, binge-like ethanol exposure at three neurodevelopmental times corresponding to the first, second, and third trimester of human development in C57BL/6J mice. Results show that developmental ethanol exposure consistently delays the development of basic motor skill reflexes and coordination as well as impairs spatial learning and memory. Observed changes in activity and anxiety-related behaviors, however, appear to be dependent on timing of alcohol exposure. The variability in behaviors between different treatment models suggests that these may be useful in evaluating the mechanisms disrupted by ethanol at specific neurodevelopmental times. The results provide further evidence that, regardless of developmental stage, the developing brain is acutely sensitive to alcohol exposure. 展开更多
关键词 Fetal Alcohol spectrum Disorder (FASD) ETHANOL behavior NEURODEVELOPMENT MOUSE Model C57BL/6J
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Calculation of the Behavior Utility of a Network System: Conception and Principle 被引量:4
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作者 Changzhen Hu 《Engineering》 2018年第1期78-84,共7页
The service and application of a network is a behavioral process that is oriented toward its operations and tasks, whose metrics and evaluation are still somewhat of a rough comparison, This paper describes sce- nes o... The service and application of a network is a behavioral process that is oriented toward its operations and tasks, whose metrics and evaluation are still somewhat of a rough comparison, This paper describes sce- nes of network behavior as differential manifolds, Using the homeomorphic transformation of smooth differential manifolds, we provide a mathematical definition of network behavior and propose a mathe- matical description of the network behavior path and behavior utility, Based on the principle of differen- tial geometry, this paper puts forward the function of network behavior and a calculation method to determine behavior utility, and establishes the calculation principle of network behavior utility, We also provide a calculation framework for assessment of the network's attack-defense confrontation on the strength of behavior utility, Therefore, this paper establishes a mathematical foundation for the objective measurement and precise evaluation of network behavior, 展开更多
关键词 NETWORK metric evaluation Differential MANIFOLD NETWORK behavior UTILITY NETWORK attack-defense CONFRONTATION
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EFFECT OF IRRADIATION ON DIELECTRIC BEHAVIOR OF POLYETHERKETONE WITH CARDO GROUP
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作者 张万喜 李树忠 +1 位作者 何忠达 徐俊 《Nuclear Science and Techniques》 SCIE CAS CSCD 1992年第4期239-243,共5页
It is found in this paper that the dielectric behavior of polyetherketone with cardo group (PEK- C) irradiated at a dose of 2.02 MGy has an obvious change. For the irradiated PEK-C, both the temperature spectrum of di... It is found in this paper that the dielectric behavior of polyetherketone with cardo group (PEK- C) irradiated at a dose of 2.02 MGy has an obvious change. For the irradiated PEK-C, both the temperature spectrum of dielectric loss factor (ε " ) within a range of 20-200 ℃ and the frequency spectrum of dielectric coefficient (ε’) in a range of 30 Hz-1 MHz show that ε" and ε’ increase from 5.4×10-3 to 4.6×10-1 andfrom 3 to 5, respectively. 展开更多
关键词 Polyetherketone (PEK- C) IRRADIATION DIELECTRIC behavior Temperature spectrum FREQUENCY spectrum
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Nutritional management and autism spectrum disorder:A systematic review
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作者 Mohammed Al-Beltagi 《World Journal of Clinical Pediatrics》 2024年第4期65-101,共37页
BACKGROUND Autism spectrum disorder(ASD)presents unique challenges related to feeding and nutritional management.Children with ASD often experience feeding difficulties,including food selectivity,refusal,and gastroint... BACKGROUND Autism spectrum disorder(ASD)presents unique challenges related to feeding and nutritional management.Children with ASD often experience feeding difficulties,including food selectivity,refusal,and gastrointestinal issues.Various interventions have been explored to address these challenges,including dietary modifications,vitamin supplementation,feeding therapy,and behavioral interventions.AIM To provide a comprehensive overview of the current evidence on nutritional management in ASD.We examine the effectiveness of dietary interventions,vitamin supplements,feeding therapy,behavioral interventions,and mealtime practices in addressing the feeding challenges and nutritional needs of children with ASD.METHODS We systematically searched relevant literature up to June 2024,using databases such as PubMed,PsycINFO,and Scopus.Studies were included if they investigated dietary interventions,nutritional supplements,or behavioral strategies to improve feeding behaviors in children with ASD.We assessed the quality of the studies and synthesized findings on the impact of various interventions on feeding difficulties and nutritional outcomes.Data extraction focused on intervention types,study designs,participant characteristics,outcomes measured,and intervention effectiveness.RESULTS The review identified 316 studies that met the inclusion criteria.The evidence indicates that while dietary interventions and nutritional supplements may offer benefits in managing specific symptoms or deficiencies,the effectiveness of these approaches varies.Feeding therapy and behavioral interventions,including gradual exposure and positive reinforcement,promise to improve food acceptance and mealtime behaviors.The findings also highlight the importance of creating supportive mealtime environments tailored to the sensory and behavioral needs of children with ASD.CONCLUSION Nutritional management for children with ASD requires a multifaceted approach that includes dietary modifications,supplementation,feeding therapy,and behavioral strategies.The review underscores the need for personalized interventions and further research to refine treatment protocols and improve outcomes.Collaborative efforts among healthcare providers,educators,and families are essential to optimize this population's nutritional health and feeding practices.Enhancing our understanding of intervention sustainability and long-term outcomes is essential for optimizing care and improving the quality of life for children with ASD and their families. 展开更多
关键词 Feeding therapy behavioral interventions Mealtime practices Autism spectrum disorder CHILDREN High-dose methyl cobalamine
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The Effects of Fe2+ on the Aggregation Behavior of Residual Hydrophobic Modified Polyacryamide
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作者 Bin Chen Shijia Chen +3 位作者 Xiaoyan Wu Chengsheng Wang Binbin Wu Li Qi 《Journal of Materials Science and Chemical Engineering》 2016年第12期1-9,共9页
The influences of Fe2+ on the aggregation behavior of residual hydrophobic modified polyacryamide (HMPAM) in treated oily wastewater were studied by fluorescence spectrum and DLS. The result of I1/I3 showed that the p... The influences of Fe2+ on the aggregation behavior of residual hydrophobic modified polyacryamide (HMPAM) in treated oily wastewater were studied by fluorescence spectrum and DLS. The result of I1/I3 showed that the polarity of hydrophobic domain increased and the size of hydrophobic domain may be decreased with the increasing of Fe2+ in produced water. Fe2+ was helpful for the increase of hydrophobic domain, therefore due to the aggregation degree for HMPAM. 展开更多
关键词 Aggregation behavior Fluorescence spectrum Residual Hydrophobic Modified Polyacryamide
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Unlocking the Network Traffic Password of the Sudden Popularity of Oriental Selection:Consumer Behavior Decision-Making Mechanism Based on Mental Accounting Theory
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作者 CHU Tiansi TIAN Hui +1 位作者 Tumpoka Kabinga ZHU Ruoqing 《Psychology Research》 2022年第11期879-889,共11页
This paper explores the decision-making mechanism of the consuming behavior hidden behind the sudden popularity of the Oriental Selection Company in terms of the mental accounting theory.Firstly,according to the“Non-... This paper explores the decision-making mechanism of the consuming behavior hidden behind the sudden popularity of the Oriental Selection Company in terms of the mental accounting theory.Firstly,according to the“Non-alternative”characteristics of mental accounting,this paper expounds how the strategy of the bilingual live-streaming of Oriental Selection promoters stimulates consumers’desire to buy the advertised products and services whilst using the utility theory of mental accounting to analyze how Oriental Selection promoters improve consumers’acquisition utility and total utility.Secondly,we sum up the successful experiences of Oriental Selection:The live-streaming industry should apply the theory of mental accounting in effectively overcoming the shortcomings of the live-streamed marketing by stimulating consumers’desire and influencing their decision-making behavior through the streaming of content that triggers them to make purchases.This is achievable by abandoning the traditional ways of loudly urging consumers to buy goods.Finally,this paper puts forward some suggestions on how to use the mental accounting theory in promoting sustainable consumption and points out the prospects for Oriental Selection. 展开更多
关键词 Oriental Selection live-streaming marketing mental accounting theory non-alternative characteristics utility theory consumer decision-making behavior
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Health awareness and lifestyle toward healthcare-seeking behavior among students in Universitas Advent Indonesia
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作者 Alvin Salim Natasha Ulima Sianturi +1 位作者 Evi Martha Suryani Yunus Elon 《Frontiers of Nursing》 2024年第3期337-342,共6页
Objective:Healthcare-seeking behavior(HSB)would affect the prevalence of morbidity and mortality.There are various factors that affect one's HSB.This study aimed to determine if health awareness and lifestyle migh... Objective:Healthcare-seeking behavior(HSB)would affect the prevalence of morbidity and mortality.There are various factors that affect one's HSB.This study aimed to determine if health awareness and lifestyle might relate to HSB.Methods:A cross-sectional study was applied by using three questionnaires to determine par ticipants'health awareness,lifestyle,and HSB.This study took place in Universitas Advent Indonesia and the students were recruited to be par ticipants.Results:There were 39 par ticipants joined in this study.Most of the par ticipants were females,third-year students,and from Accounting major.Almost all participants were aware of their low risk of health issues,had a fine lifestyle,and had moderate HSB.Conclusions:One's urge to seek health care facilities was not related to their health awareness and lifestyle.There was no fur ther study to contradict with this finding at this moment. 展开更多
关键词 health awareness healthcare-seeking behavior healthcare service utilization LIFESTYLE public health
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Utility of Urban Public Facilities of Haikou City Based on Behavioral Theory
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作者 Xiaojun YUAN 《Asian Agricultural Research》 2013年第11期106-108,共3页
From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for desig... From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for designing urban public facilities behind behavior habits of residents,in the hope of making future urban construction and management more humanized.Accordingly,it is expected to set up appropriate concept of public facilities,and play especially important role in creating favorable urban living environment. 展开更多
关键词 behaviorAL theORY PUBLIC facilities ENVIRONMENT UT
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低频部署下MIMO-OFDM通信系统的频谱利用效率分析
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作者 樊恒波 李秀成 王江超 《通信电源技术》 2024年第4期34-36,共3页
主要深入研究低频部署下多进多出-正交频分复用(Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing,MIMO-OFDM)通信系统的频谱利用效率,探讨低频部署对系统性能的影响,并提出相应的优化策略。详细分析低频部... 主要深入研究低频部署下多进多出-正交频分复用(Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing,MIMO-OFDM)通信系统的频谱利用效率,探讨低频部署对系统性能的影响,并提出相应的优化策略。详细分析低频部署对信号传输性能和频谱利用效率的影响,评估频谱利用效率,提出针对低频部署的MIMO-OFDM系统的优化策略,最后探讨低频部署下MIMO-OFDM系统的适用场景,为实际应用提供一些建议。 展开更多
关键词 多进多出-正交频分复用(MIMO-ofDM) 低频部署 频谱利用效率
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Thermal Evaporation Deposition of Few-layer MoS_2 Films 被引量:3
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作者 Xiying Ma Miaoyuan Shi 《Nano-Micro Letters》 SCIE EI CAS 2013年第2期135-139,共5页
We present a study of the fabrication of monolayer MoS_2 on n-Si(111) substrates by modified thermal evaporation deposition and the optoelectrical properties of the resulting film. The as-grown MoS_2 ultrathin film is... We present a study of the fabrication of monolayer MoS_2 on n-Si(111) substrates by modified thermal evaporation deposition and the optoelectrical properties of the resulting film. The as-grown MoS_2 ultrathin film is about 10 nm thick, or about a few atomic layers of MoS_2. The film has a large optical absorption range of 300-700 nm and strong luminescence emission at 682 nm. The optical absorption range covered almost the entire ultraviolet to visible light range, which is very useful for making high-efficiency solar cells. Moreover, the MoS_2/Si heterojunction exhibited good rectification characteristics and excellent photovoltaic effects. The power conversion efficiency of the heterojunction device is about 1.79% under white light illumination of 10 m W/cm^2. The results show that the monolayer MoS_2 film will find many applications in high-efficiency optoelectronic devices. 展开更多
关键词 Monolayer MoS2 thermal evaporation deposition Absorption spectrum I-V behavior
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DCGAN Based Spectrum Sensing Data Enhancement for Behavior Recognition in Self-Organized Communication Network 被引量:4
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作者 Kaixin Cheng Lei Zhu +5 位作者 Changhua Yao Lu Yu Xinrong Wu Xiang Zheng Lei Wang Fandi Lin 《China Communications》 SCIE CSCD 2021年第11期182-196,共15页
Communication behavior recognition is an issue with increasingly importance in the antiterrorism and national defense area.However,the sensing data obtained in actual environment is often not sufficient to accurately ... Communication behavior recognition is an issue with increasingly importance in the antiterrorism and national defense area.However,the sensing data obtained in actual environment is often not sufficient to accurately analyze the communication behavior.Traditional means can hardly utilize the scarce and crude spectrum sensing data captured in a real scene.Thus,communication behavior recognition using raw sensing data under smallsample condition has become a new challenge.In this paper,a data enhanced communication behavior recognition(DECBR)scheme is proposed to meet this challenge.Firstly,a preprocessing method is designed to make the raw spectrum data suitable for the proposed scheme.Then,an adaptive convolutional neural network structure is exploited to carry out communication behavior recognition.Moreover,DCGAN is applied to support data enhancement,which realize communication behavior recognition under small-sample condition.Finally,the scheme is verified by experiments under different data size.The results show that the DECBR scheme can greatly improve the accuracy and efficiency of behavior recognition under smallsample condition. 展开更多
关键词 spectrum sensing communication behavior recognition small-sample data enhancement selforganized network
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Alteration of chemical behavior of L-ascorbic acid in combination with nickel sulfate at different pH solutions in vitro 被引量:1
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作者 Shaheen A Maniyar Jameel G Jargar +2 位作者 Swastika N Das Salim A Dhundasi Kusal K Das 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2012年第3期220-222,共3页
Objective:To evaluate the alteration of chemical behavior of L-ascorbic acid(vitamin C) with metal ion(nickel) at different pH solutions in vitro.Methods:Spectra of pure aqueous solution of L-ascorbic acid(E mark) com... Objective:To evaluate the alteration of chemical behavior of L-ascorbic acid(vitamin C) with metal ion(nickel) at different pH solutions in vitro.Methods:Spectra of pure aqueous solution of L-ascorbic acid(E mark) compound and NiSO_4(H_2O)(sigma USA) were evaluated by UV visible spectrophotometer.Spectral analysis of L-ascorbic acid and nickel at various pH(2.0, 7.0,7.4 and 8.6) at room temperature of 29℃ was recorded.In this special analysis,combined solution of L-ascorbic acid and nickel sulfate at different pH was also recorded.Results:The result revealed that λ_(max)(peak wavelength of spectra) of L-ascorbic acid at pH 2.0 was 289.0 run whereas at neutral pH 7.0,λ_(max) was 29S.4 run.In alkaline pH 8.6,λ_(max) was 295.4 nm and at pH 7.4 the λ_(max) of L-ascorbic acid remained the same as 295.4 nm.Nickel solution at acidic pH 2.0 was 394.5 nm,whereas at neutral pH 7.0 and pH 7.4 were the same as 394.5 nm.But at alkaline pH 8.6,λ_(max) value of nickel sulfate became 392.0 nm.The combined solution of L-ascorbic acid and nickel sulfate(6 mg/mL each) at pH 2.0 showed 292.5 nm and 392.5 nm,respectively whereas at pH 7.0,L-ascorbic acid showed 296.5 nm and nickel sulfate showed 391.5 nm.At pH 7.4,L-ascorbic acid showed 297.0 nm and nickel sulfate showed 394.0 nm in the combined solution whereas at pH 8.6(alkaline) L-ascorbic acid and nickel sulfate were showing 297.0 and 393.5 nm,respectively. Conclusions:Results clearly indicate an altered chemical behavior of L-ascorbic acid either alone or in combination with nickel sulfate in vitro at different pH.Perhaps oxidation of L-ascorbic acid to L-dehydro ascorbic acid via the free radical(HSc*) generation from the reaction of H,ASc + Ni(Ⅱ) is the cause of such alteration of λ_(max),value of L-ascorbic acid in the presence of metal nickel. 展开更多
关键词 L-ascorbic acid NICKEL PH spectrum Chemical behavior Spectra UV visible SPECTROPHOTOMETER Peak wavelength Free radical VITAMIN C NICKEL SULFATE
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Theory and Application of Multi-robot Service-oriented Architecture 被引量:1
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作者 Yunfei Cai Zhenmin Tang +1 位作者 Yuhua Ding Bin Qian 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI 2016年第1期15-25,共11页
In order to solve the problem of heterogeneity in multi-robot cooperation, a new service-oriented architecture is proposed for multi-robot cooperation. Service provision and energy consumption are the basic cooperativ... In order to solve the problem of heterogeneity in multi-robot cooperation, a new service-oriented architecture is proposed for multi-robot cooperation. Service provision and energy consumption are the basic cooperative behaviors. A set of basic concepts of robot service are proposed. A layered multi-robot service-oriented architecture is designed. Finally, the experiments illustrate the superiority of the proposed architecture which makes robot's underlying functional components be transparently encapsulated and the services in upper layer be transparently invoked, which will effectively avoid the impact of heterogeneous characteristics in multi-robot cooperation and facilitate the system construction, expansion, restructuring and maintenance. © 2014 Chinese Association of Automation. 展开更多
关键词 ARCHITECTURE behavioral research Energy utilization Industrial robots Information services Multipurpose robots Quality of service ROBOTS
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Recent advancements in noninvasive brain modulation for individuals with autism spectrum disorder 被引量:3
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作者 Jessica R.Griff Jake Langlie +7 位作者 Nathalie B.Bencie Zachary J.Cromar Jeenu Mittal Idil Memis Steven Wallace Alexander E.Marcillo Rahul Mittal Adrien A.Eshraghi 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第6期1191-1195,共5页
Autism spectrum disorder is classified as a spectrum of neurodevelopmental disorders with an unknown definitive etiology.Individuals with autism spectrum disorder show deficits in a variety of areas including cognitio... Autism spectrum disorder is classified as a spectrum of neurodevelopmental disorders with an unknown definitive etiology.Individuals with autism spectrum disorder show deficits in a variety of areas including cognition,memory,attention,emotion recognition,and social skills.With no definitive treatment or cure,the main interventions for individuals with autism spectrum disorder are based on behavioral modulations.Recently,noninvasive brain modulation techniques including repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,continuous theta burst stimulation,and transcranial direct current stimulation have been studied for their therapeutic properties of modifying neuroplasticity,particularly in individuals with autism spectrum disorder.Preliminary evidence from small cohort studies,pilot studies,and clinical trials suggests that the various noninvasive brain stimulation techniques have therapeutic benefits for treating both behavioral and cognitive manifestations of autism spectrum disorder.However,little data is available for quantifying the clinical significance of these findings as well as the long-term outcomes of individuals with autism spectrum disorder who underwent transcranial stimulation.The objective of this review is to highlight the most recent advancements in the application of noninvasive brain modulation technology in individuals with autism spectrum disorder. 展开更多
关键词 autism spectrum disorder behavior COGNITION neurostimulation interventions noninvasive brain modulation theta burst stimulation transcranial direct current stimulation transcranial magnetic stimulation
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