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Towards frequency adaptation for delayed feedback deep brain stimulations

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Neural regeneration research 2018年第3期13卷 408-409页

作者： Mohammad daneshzand Miad Faezipour Buket d.Barkana d-BEST Lab Departments of Computer Science and Engineering and Biomedical Engineering University of Bridgeport department of Electrical Engineering University of Bridgeport

In neurodegenerative disorders such as Parkinson＇s disease （Pd）, deep brain stimulation （dBS） is a desirable approach when the medication is less effective for treating the symptoms. dBS incorporates transferring electrical pulses to a specific tissue of the central nervous system, obtaining therapeutic results by modulating the neuronal activity of that region. dBS has certain advantages such as reversibility and adjustability features over medication, since the neuronal firing patterns can be recorded and used to alter the parameters of the dBS signal （Benabid et al., 2009）. One of the dBS indications is its ability to suppress the abnormal neuronal activity to treat symptoms like tremor, akinesia and dystonia.

关键词： Figure dBS Towards frequency adaptation for delayed feedback deep brain stimulations STN HFS

Psychiatric comorbidity in the treatment of patients with inflammatory bowel disease

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World Journal of Gastroenterology 2014年第13期20卷 3552-3563页

作者： Branislav r Filipovic Branka F Filipovic Faculty of Medicine Institute of Anatomy "Niko Miljanic"11000 BelgradeSerbia Branislav R FilipovicBranka F FilipovicFaculty of MedicineUniversity of Belgrade11000 BelgradeSerbia department of Gastroenterohepatology Clinical and Hospital Center "Bezanijska Kosa"11080 BelgradeSerbia

Ulcerative colitis and Crohn’s disease, commonly known as inflammatory bowel disease (IBd), draw attention from specialists of various disorders, including gastroenterology, psychiatry, and radiology. The involvement of a cortical influence in the brain-gut axis as well as the interaction of the hypothalamic-pituitary-adrenal axis and the peripheral nervous system provide an initial explanation of the psychological symptoms associated with IBd. The involvement of structures the limbic system, such as the anterior cingulate cortex, the prefrontal cortex, and the amygdala, paves the way for the discovery of the mechanisms underlying depression depression, anxiety, alexithymia, personality traits, and other psychological impairments following the onset of IBd. Psychiatric therapy in IBd patients is almost as important as the gastroenterological approach and consists of pharmacological treatment and psychotherapy. Neither of the available psychiatric treatment methods is considered the golden standard because both methods have side effects, and psychotropic medication can provoke the worsening of IBd symptoms. Thus, both approaches must be applied with awareness of the possibility of side effects. We suggest that psychiatrists and gastroenterologists work together to reach a consensus on IBd therapy to ensure success and to reduce side effects and relapse to the lowest possible rates.

关键词： Inflammatory bowel disease Psychiatry Treatment Personality traits depression Anxiety

Update on cell therapy for stroke

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Stroke & Vascular Neurology 2017年第2期2卷 59-64页

作者： Cynthia L Kenmuir Lawrence r Wechsler department of Neurology University of Pittsburgh Medical CenterPittsburghPennsylvaniaUSA

Ischaemic stroke remains a leading cause of death and *** stroke treatment options aim to minimise the damage from a pending stroke during the acute stroke period using intravenous thrombolytics and endovascular thrombectomy;however,there are no currently approved treatment options for reversing neurological damage once a stroke is *** studies suggest that cell therapy may be safe and effective in improving functional *** recent clinical trials have reported safety and some improvement in outcomes following cell therapy administration in ischaemic stroke,which are *** therapy may provide a promising new treatment for stroke reducing stroke-related *** investigation is needed to determine specific effects of cell therapy and to optimise cell delivery methods,cell dosing,type of cells used,timing of delivery,infarct size and location of infarct that are likely to benefit from cell therapy.

关键词： damage acute treatment

Hybrid rice research and development in China and Its New Progress

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Hunan Agricultural Science ＆ Technology Newsletter 2000年第3期1卷 5-12页

作者： Luo runliang (China National Hybrid rice r&d Center, Changsha 410125) China National Hybrid rice r&d Center Changsha 410125

Hybrid rice's history and its development up to date are described in the paper. Compared with the conventional rice, hybrid rice can increase grain yield by about 20%. Hybrid rice breeding in China has been advancing along the three-line method, to two-line method, to super high-yielding rice application strategically and its success in higher degree will be seen by the utilization of distant heterosis cooperated with biotechnology.

关键词： Hybrid rice Three-line method Two-line method Super rice distant heterosis Biotechnology

Harmonics Extraction Scheme for Power Quality Improvement Using Chbmli-dstatcom Module

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Intelligent Automation & Soft Computing 2023年第2期35卷 1505-1525页

作者： r.Hemalatha M.ramasamy Anna University ChennaiTamil NaduIndia K.S.r.College of Engineering TiruchengodeTamil NaduIndia

In recent day’s power distribution system is distress from acute power quality *** this work,for compensating Power Quality(PQ)disturbances a seven level cascaded H-bridge inverter is implemented in distribution static com-pensator which protects power quality problems in *** Static Compensator(dSTATCOM)aid to enhances power factor and removes total har-monic distortion which is drawn from non-linear *** d–Q reference theory based hysteresis current controller is employed to generate reference current for compensation of harmonics and reactive power,additionally Probabilistic Neural Network(PNN)classiﬁer is used which easily separates exact *** the meantime fuzzy logic controller is also used to maintain capacitor dC-link *** comparing to PI controller it decreases steady state time and reduces maximum peak *** H-bridge multilevel inverter converts direct current to Alternating current,through inductor opposite harmonics are injected in Power Control Centre reduces source current harmonics and reactive *** implementation of CHBMLI in distribution STATic COMpensator simulation model is simulated by means of MATLAB.

关键词： CHBMLI distribution STATic COMpensator(dSTATCOM) probabilistic neural network(PNN) PI(proportional–integral) fuzzy logic control(FLC) total harmonic distortion(THd)

Optimized Model Based Controller with Model Plant Mismatch for NMP Mitigation in Boost Converter

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Computer Systems Science & Engineering 2023年第8期46卷 1961-1979页

作者： r.Prasanna Uma Govindarajan NSBhuvaneswari department of Electrical and Electronics Engineering Power System DivisionCollege of Engineering GuindyAnna UniversityChennai600025India department of Electrical and Electronics Engineering GKM College of Engineering and TechnologyChennai600063India

In this paper,an optimized Genetic Algorithm(GA)based internal model controller-proportional integral derivative(IMC-PId)controller has been designed for the control variable to output variable transfer function of dc-dc boost converter to mitigate the effect of non-minimum phase(NMP)behavior due to the presence of a right-half plane zero(rHPZ).This rHPZ limits the dynamic performance of the converter and leads to internal *** IMC PId is a streamlined counterpart of the standard feedback controller and easily achieves optimal set point and load change performance with a single filter tuning parameterλ.Also,this paper addresses the influences of the model-based controller with model plant mismatch on the closed-loop *** conventional IMC PId design is realized as an optimization problem with a resilient controller being determined through a genetic *** results suggested that GA–IMC PId coheres to the optimum designs with a fast convergence rate and outperforms conventional IMC PId controllers.

关键词： Boost converter non-minimum phase internal model control dynamic controller

VENTILATION SYSTEM MOdELING ANd TUrBULENCE MINIMIZATION

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International Journal of Modeling, Simulation, and Scientific Computing 2014年第1期5卷 105-131页

作者： r.WHALLEY A.ABdUL-AMEEr The British University in dubai P.O.Box 345015 Dubai-UAE

In this feasibility study,a large scale ventilation system comprising spatially dispersed enclosed volumes,fans,ducting and airways is *** procedures enabling the construction of simple,compact models including the relatively pointwise and significantly distributed system elements are *** accuracy,with the incorporation of the entrance and exit impedances and the airway,continuous energy storage and dissipation effects are *** flow maximization,under quiescent operating conditions is investigated and the optimum relationships between the airway characteristic impedance,entrance and exit resistances are *** minimization of the vibration and turbulence arising from the continuous compression/expansion effects arising from the input–output volume airflow difference is achieved,whilst simultaneously maximizing the output volume *** in the parameter values are employed to confirm the effectiveness of operating under optimum conditions,for ventilation system airways with various dimensions and characteristics.

关键词： Turbulence minimization ventilation system optimization

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地图制图事业中的国际合作

地图 1989年第2期 2+22-24页

作者： d.r.F.泰勒胡孝沁国际地图制图协会

《地图》杂志作为一种学术出版物,其重要性与日俱增。本期刊登了中国地图制图学界向第十四届国际地图制图学术会议提交的(部分)论文,令人十分欣喜。近年来,中国的地图制图事业成就显著;作为国际地图制图协会的主席,我怀着特殊的兴趣注... 详细信息

《地图》杂志作为一种学术出版物,其重要性与日俱增。本期刊登了中国地图制图学界向第十四届国际地图制图学术会议提交的(部分)论文,令人十分欣喜。近年来,中国的地图制图事业成就显著;作为国际地图制图协会的主席,我怀着特殊的兴趣注视着这些进展。

关键词：地图制图学术出版物国家地图集地形数据库空间数据空间信息制图技术事业成就学术会议城市信息系统

Overcast sky condition prevails on and influences the biometeorology of the tropical Andean Páramos

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Journal of Mountain Science 2023年第1期20卷 78-86页

作者： Paola MONTENEGrO-dÍAZ rolando CELLErIALVEAr Galo CArrILLO-rOJAS departamento de recursos Hídricos y Ciencias Ambientales Universidad de CuencaCuenca010207Ecuador Facultad de Ingeniería Universidad de CuencaCuenca010207Ecuador Facultad de Ciencias Químicas Universidad de CuencaCuenca010207Ecuador

Clouds play a major role in modulating the biometeorological processes. We studied the influence of cloudiness on four biometeorological variables:daily air temperature(Tair), relative humidity(rH),reference evapotranspiration(ETr),and photosynthetic active radiation(PAr), recorded at four sites of Andean Páramos in southern Ecuador during 2.5 to 5.5 years. First, we quantified both the cloud cover percentage(Cloud%) creating cloud masks over the visible bands of Landsat 7 images and the sky condition(K_(T)) using the records of solar and extraterrestrial radiation. Second, we estimated KTfrom Cloud%. Finally, we quantified T_(air), rH, ET_(r), and PAr under clear, cloudy, and overcast K_(T) and their dependence on KT. The average Cloud% ranged between 65%–76%, and KTcorroborated the prevailing overcast sky(between 55% and 72.5% of the days) over the páramos. The proposed model performed well in the sites of calibration(r^(2)= 0.80;MBE = 0.00;rMSE = 0.05) and validation(r^(2)= 0.74;MBE =-0.07;rMSE = 0.11). The overcast sky diminished T_(air)(≤ 10℃), ET_(r)(≤ 1.6 mm day-1), and PAr(4 MJ m^(-2)day^(-1)) and increased rH(≥ 88%),while the variables showed the opposite behavior during the uncommon clear sky(≤ 5.5% of the days).Thus, mostly the dynamic of rH(r^(2)≥ 0.62), ETr(r^(2)≥ 0.85), and PAr(r2≥ 0.77) depended on K_(T). Hence,the prevailing overcast sky influenced the biometeorology of the páramos.

关键词： Cloudiness indicator Clearness index Satellite imagery Tropical Andes