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Hybrid Neural Network Architecture for On-Line Learning

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Intelligent Information Management 2010年第4期2卷 253-261页

作者： Yuhua Chen subhash Kak Lei Wang 不详

Approaches to machine intelligence based on brain models use neural networks for generalization but they do so as signal processing black boxes. In reality, the brain consists of many modules that operate in parallel at different levels. In this paper we propose a more realistic biologically inspired hybrid neural network architecture that uses two kinds of neural networks simultaneously to consider short-term and long-term characteristics of the signal. The first of these networks quickly adapts to new modes of operation whereas the second one provides more accurate learning within a specific mode. We call these networks the surfacing and deep learning agents and show that this hybrid architecture performs complementary functions that improve the overall learning. The performance of the hybrid architecture has been compared with that of back-propagation perceptrons and the CC and FC networks for chaotic time-series prediction, the CATS benchmark test, and smooth function approximation. It is shown that the proposed architecture provides a superior performance based on the RMS error criterion.

关键词： Neural Networks Instantaneously Trained Networks Back-Propagation On-Line Learning

不稳定性桡骨远端骨折（A型）的手术外固定与内固定对比

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不稳定性桡骨远端骨折（A型）的手术外固定与内固定对比

作者： subhash Regmi 扬州大学

学位级别：硕士

背景：这项研究对不稳定性桡骨远端骨折的患者应用手术外固定与内固定的临床数据进行回顾性研究目的：对比手术外固定与内固定治疗不稳定性桡骨远端骨折(A型)的结果：概括出治疗不稳定性桡骨远端骨折(A型)的最佳治疗方法,并在文献中寻... 详细信息

背景：这项研究对不稳定性桡骨远端骨折的患者应用手术外固定与内固定的临床数据进行回顾性研究目的：对比手术外固定与内固定治疗不稳定性桡骨远端骨折(A型)的结果：概括出治疗不稳定性桡骨远端骨折(A型)的最佳治疗方法,并在文献中寻找有效证据方法：临床数据采集自2014年2月1日至2016年1月31日被诊断为桡骨远端骨折(A型)的患者的回顾。如果患者满足以下标准即被纳入：1)以内固定方式治疗的患者(掌侧锁定板)及手术外固定方式治疗的患者(外固定支架)2)受伤后1周内进行手术的患者。所有患者被分为两组,A组使用内固定方式治疗,B组使用手术外固定方式治疗。记录每个纳入缓和随访记录并统计分析。包括术前、术后的x光片参数(桡骨长度、倾斜度、掌倾角、撕脱成交);手术时间;住院时间;随访DASH评分和腕关节活动度,包括屈曲,背伸,旋后、旋前、桡偏、尺偏。对比两组病例及术后x光片、术后随访功能结果并进行统计学分析差异有显著性。结果：30名患者被纳入本研究并分成A组(n=20)及B组(n=10)。A组包括7男(35%),13女(65%),平均年龄49±19.17岁。术后平均桡骨高度、桡偏、掌倾和撕裂角分别是13.5±1.5mm,20.7±3°,10.4±2.8°,65.3±4.40°,6个月后随访平均QD评分是10.1±3.3,平均腕关节活动度在屈曲64.5±8.9°,背伸69.4±5.7°之间,旋后66.2±6°,旋前73.3±5.4°,桡偏20.2±3.1°,尺倾33.4±3.9°。B组包括3(30%)男及7(70%)女。患者平均年龄为63±8.4岁。.术后平均桡骨高度、桡偏、掌倾和撕裂角分别是14.2±1.1mm,20.4±2.8°,6.2±3.9°,59.4±6.4°,6个月后随访平均QD得分是15.2±6.7,平均腕关节活动度(ROM)在屈曲56.5±8.8°与背伸58.5±10.8°之间,旋后58.5±4°,旋前559±8.40,桡偏19.7±2.50,尺倾27.2±40。涉及到术后桡骨高度、倾斜度、掌倾角测量、术后随访QD评分及腕关节活动度等方面有显著差异。涉及到术后并发症方面两者无统计学差异。结论：治疗涉及桡偏、掌倾角、功能结果、QD评分、腕关节活动度等方面内固定明显优于手术外固定,但没有明显证据区分二者在治疗不稳定性桡骨远端(A型)过程中产生的并发症。

关键词：腕部外伤骨折固定内置物外科结果 QD评分

诱导结构对泡沫铝填充薄壁方管轴向压溃特性影响的研究

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振动与冲击 2020年第6期39卷 167-175页

作者：李志超上官文斌 subhash Rakheja 刘杰谭孟 AHMED Waizuddin 华南理工大学机械与汽车工程学院广州510640 西南交通大学机械工程学院成都610031

建立了泡沫铝填充薄壁方管的有限元模型,利用试验对泡沫铝填充薄壁方管的有限元模型的准确性进行了验证。研究了诱导结构的类型和数量对泡沫铝填充薄壁方管的轴向压溃变形模式、初始峰值力、压溃力效率和能量吸收能力的影响,结果表明:... 详细信息

建立了泡沫铝填充薄壁方管的有限元模型,利用试验对泡沫铝填充薄壁方管的有限元模型的准确性进行了验证。研究了诱导结构的类型和数量对泡沫铝填充薄壁方管的轴向压溃变形模式、初始峰值力、压溃力效率和能量吸收能力的影响,结果表明:设计诱导结构可以提高能量吸收能力、减小初始峰值力、增加压溃力效率,甚至可以改变压溃变形模式。沿薄壁方管的轴向方向合理地增加诱导结构的数量,可以进一步的减小初始峰值力、增加压溃力效率、提高结构的能量吸收能力。通过等级评价方法,确定沿薄壁方管的轴向方向设计4组诱导四角方孔可以使泡沫铝填充薄壁方管获得最佳的综合吸能特性。

关键词：能量吸收泡沫铝填充薄壁方管轴向加载诱导结构有限元分析

Cloud Computing Based PHR Architecture Using Multi Layers Model

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Journal of Software Engineering and Applications 2012年第11期5卷 903-911页

作者： Shinji Kikuchi Shelly Sachdeva subhash Bhalla Jaypee Institute of Information Technology Noida India School of Computer Science and Engineering University of Aizu Fukushima Japan

There are important requirements for the adoption of innovative practices in the medical area. In this context, Personal Health Records have been proposed and some services have already been launched. However so far, there have been only a few studies in regards to applying Cloud architecture for PHR, despite the occurrence of a large volume of data. In particular, the existing studies tend to remain at applying them partly, instead of a full adoption based on the architectural characteristics of the service models. In this paper, we clarify the result of the general architecture design by applying the Cloud components for supporting healthcare record areas and highlight the required conditions to realize it. Through the proposed considerations the requirement for the new techniques of query processing has been identified as one of the critical factors, that are combined with several items such as managing semantic interoperability, managing service level agreement and secret sharing, Accordingly, we propose the primary work for building the standardized, detailed and more sophisticated architecture.

关键词： Personal Healthcare Records Architecture Design Query Processing Secret Sharing SLA

Selecting the Optimal Morse Falls Scale Cut-Off Point for Patient Fall Risk

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Health 2019年第7期11卷 924-931页

作者： Sikha Bagui Tyler Long subhash Bagui Department of Computer Science University of West Florida Pensacola FL USA Department of Mathematics and Statistics University of West Florida Pensacola FL USA

Patient falls have long been a difficult problem and topic of research in the inpatient hospital environment. Hospitals experience heavy financial burden due to patient falls. Preventing falls can improve patient outcomes as well as reduce financial burden on both the patient as well as the healthcare organization. In this study, we determine the optimal cut-off value for patients at risk for falls using a Falls Screening Tool, the Morse Falls Scale. This study was conducted at a community-owned hospital with 256 acute care private rooms and 36 critical care rooms. This study used only the admission Morse Falls Scale (MFS) score in its analysis.

关键词： Patient Falls Morse Falls Scale Preventing Falls Falls Risk Assessment Falls Prevention

In vitro antioxidant activity of callus culture of carrot （Daucus carom）

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Journal of Agricultural Science and Technology 2009年第12期3卷 19-24,62页

作者： Tadhani Manish Patel vinayak Rema subhash Rayat London College Middlesex TW5 OLJ UK Food Biotechnology Laboratory Post Graduate Department of Home ScienceSardar Patel UniversityVallabh Vidyanagar-388 120 GujaratIndia

Carrot （Daucus carom） is a valuable source of health promoting ingredients such as anthocyanin, carotenes, phenolic compounds etc. These substances are important to man as a source of pharmaceuticals, fragrance, agrochemicals as well as food additives and used for prevention of many chronic diseases. Since these activities may be correlated with the presence of antioxidant compounds, extract of carrot and carrot callus were evaluated for their anthocyanin, flavonoids and total phenolic content as well as total antioxidant activity. Anthocyanin content was measured by spectrophotometric method. Total phenols and flavonoids were analyzed according to the Folin-Ciocalteu method and total antioxidant activity was assessed by ferric reducing/antioxidant power （FRAP） assay. Anthocyanin, flavonoids and total phenolic content were estimated to be 9.36 mg%, 46.96 mg% and 57.01 mg% for callus and 6.82 mg%, 32.96 mg% and 42.69 mg% for carrot, respectively, on fresh weight basis. The total antioxidant activity for the callus and carrot was found to be 51.13 mg, 118.77 mg, 91.08 mg and 140.08 mg equivalent and 79.40 mg, 184.44 mg, 141.43 mg and 217.52 mg equivalent to gallic acid, vitamin C, butylated hydroxyanisole （BHA） and trolox, respectively, when expressed per 100 g on fresh weight basis. The antioxidant activity of fresh carrot was found to be higher compared to its callus.

关键词： carrot callus anthocyanin flavonoids phenoliccompounds antioxidant activity

Naringin ameliorates acetic acid induced colitis through modulation of endogenous oxido-nitrosative balance and DNA damage in rats

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The Journal of Biomedical Research 2014年第2期28卷 132-145页

作者： Venkatashivam Shiva Kumar Anuchandra Ramchandra Rajmane Mohammad Adil Amit Dattatraya Kandhare Pinaki Ghosh subhash Laxman Bodhankar Department of Pharmacology Poona College of PharmacyBharati Vidyapeeth Deemed University

The aim of this study was to evaluate the effect of naringin on experimentally induced inflammatory bowel dis- ease in rats. Naringin （20, 40 and 80 mg/kg） was given orally for 7 days to Wistar rats before induction of colitis by intrarectal instillation of 2 mL of 4% （v/v） acetic acid solution. The degree of colonic mucosal damage was analyzed by examining mucosal damage, ulcer area, ulcer index and stool consistency. Intrarectal administration of 4% acetic acid resulted in significant modulation of serum alkaline phosphatase, lactate dehydrogenase, superoxide dismutase （SOD）, glutathione （GSH）, malondialdehyde （MDA） and myeloperoxidase （MPO） content along with colonic nitric oxide （NO）, xanthine oxidase （XO） level and protein carbonyl content in the colonic tissue as well as in blood. Naringin （40 and 80 mg/kg） exerted a dose dependent （P 〈 0.05） ameliorative effect, as it significantly increased hematological parameter as well as colonic SOD and GSH. There was a significant （P 〈 0.05） and dose dependant inhibition of macroscopical score, ulcer area along with colonic MDA, MPO activity by the 7 days of pretreatment of naringin （40 and 80 mg/kg）. Biochemical studies revealed a significant （P 〈 0.05） dose dependant inhibition in serum alkaline phosphatase （ALP） and lactate dehydrogenase （LDH） levels by pretreatment of naringin. Increased levels of colonic NO, XO, protein carbonyl content and DNA damage were also sig- nificantly decreased by naringin pretreatment. The findings of the present investigation propose that naringin has an anti-inflammatory, anti-oxidant and anti-apoptotic potential effect at colorectal sites as it modulates the production and expression of oxidative mediators such as MDA, MPO, NO and XO, thus reducing DNA damage.

关键词： acetic acid, apoptosis, fluorimetric analysis of DNA unwinding, inflammatory bowel disease, my-eloperoxidase, naringin, nitrite/nitrate, oxidative stress porotein carbonyl content, vascular permeability, xanthineoxidase

Spotless days and geomagnetic index as the predictors of solar cycle 25

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Research in Astronomy and Astrophysics 2021年第9期21卷 21-28页

作者： Dipali S.Burud Rajmal Jain Arun K.Awasthi Sneha Chaudhari Sushanta C.Tripathy Nat Gopalswamy Pramod Chamadia subhash C.Kaushik Rajiv Vhatkar Department of Physics Shivaji UniversityKolhapur 416004India Physical Research Laboratory Navrangpura380009 Ahmedabad CAS Key Laboratory of Geospace Environment Department of Geophysics and Planetary SciencesUniversity of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Solar Activity National Astronomical ObservatoriesBeijing 100101China National Solar Observatory 3665 Discovery Drive BoulderCO 80303USA Goddard Space Flight Center NASAGreenbeltMD 20771USA Department of Physics Govt.PG Autonomous CollegeSatnaM.P.485001India Department of Physics Govt.P.G.CollegeDatiyaM.P.475661India Sh.M.M.Patel Institute of Sciences and Research Kadi Sarva VishwavidyalayaGandhinagar 382015India

We study the sunspot activity in relation to spotless days(SLDs)during the descending phase of solar cycles 11-24 to predict the amplitude of sunspot cycle *** this purpose,in addition to SLD,we also consider the geomagnetic activity(aa index)during the descending phase of a given cycle.A very strong correlation of the SLD(0.68)and aa index(0.86)during the descending phase of a given cycle with the maximum amplitude of next solar cycle has been *** empirical relationship led us to deduce the amplitude of cycle 25 to be 99.13±14.97 and 104.23±17.35 using SLD and aa index,respectively as *** the predictors provide comparable amplitude for solar cycle 25 and reveal that solar cycle 25 will be weaker than cycle ***,we predict that the maximum of cycle 25 is likely to occur between February and March *** the aa index has been utilized extensively in the past,this work establishes SLDs as another potential candidate for predicting the characteristics of the next cycle.

关键词： Sun:activity Sun:sunspots Sun:rotation methods:statistical

Local hardening and asymmetric twin growth by twin-twin interactions in a Mg alloy

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Journal of Magnesium and Alloys 2023年第1期11卷 176-191页

作者： Krishna Yaddanapudi Mariyappan Arul Kumar Jiaxiang Wang Xin Wang Timothy J.Rupert Enrique J.Lavernia Julie M.Schoenung Irene J.Beyerlein subhash Mahajan Department of Materials Science and Engineering University of CaliforniaDavisCA 95616USA Materials Science and Technology Division Los Alamos National LaboratoryLos AlamosNM 87545USA Department of Mechanical Engineering Materials DepartmentUniversity of CaliforniaSanta BarbaraCA 93106USA Department of Materials Science and Engineering University of CaliforniaIrvineUSA Materials Department University of CaliforniaSanta BarbaraCA 93106USA

In this study,the role of twin-twin interactions on the distributions of local defects(e.g.,dislocations)and stress fields in a magnesium alloy is investigated.A co-zone(1012)-(1012)tensile twin junction in a deformed Mg-3wt.%Y alloy is analyzed using transmission electron microscopy(TEM).The results show that the morphology of the impinging(1012)twin is asymmetric,and the non-interacting boundary of the recipient(1012)twin is *** analysis of TEM images reveals that type-II pyramidal[1213](1212)dislocations concentrate in the vicinity of the twin-twin junction *** samedislocations are also observed inside the interacting twin domains along with a few ***dislocations emanating from the impinging(1012)twin boundary have edge character and are extended with faults parallel to the basal *** contrast,thedislocations connected to the recipient(1012)twin are predominantly screw orientation and ***-viscoplastic fast Fourier transform based crystal plasticity calculations are performed to rationalize the observed twin morphology and local dislocation *** model calculations suggest that the local stress fields generated at the junction site where the two twins meet are responsible for the experimentally observed concentration of*** calculated stress fields are asymmetric with respect to the junction site,explaining the observed asymmetric morphology of the impinging ***,these findings show strong effects of twin-twin interactions on the distribution of dislocations as well as the evolution of the twinned microstructure and as such,can help advance understanding of twinning in Mg alloys and their effect on mechanical behavior.

关键词： Tensile twins Twin-twin intersections Mg alloys Crystal plasticity TEM