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Insights into channel potentials and electron quasi-Fermi potentials for DG tunnel FETs

Journal of semiconductors 2015年第1期36卷 76-81页

作者： Menka anand Bulusu s.Dasgupta Department of Electronics and Communication Engineering Indian Institute of Technology Roorkee (IITR) RoorkeeUttarakhand India

A detailed investigation carried out, with the help of extensive simulations using the TCAD device simulator sentaurus, with the aim of achieving an understanding of the effects of variations in gate and drain potentials on the device characteristics of a silicon double-gate tunnel field effect transistor（si-DG TFET） is reported in this paper. The investigation is mainly aimed at studying electrical properties such as the electric potential, the electron density, and the electron quasi-Fermi potential in a channel. From the simulation results, it is found that the electrical properties in the channel region of the DG TFET are different from those for a DG MOsFET. It is observed that the central channel potential of the DG TFET is not pinned to a fixed potential even after the threshold is passed（as in the case of the DG MOsFET）; instead, it initially increases and later on decreases with increasing gate voltage, and this is also the behavior exhibited by the surface potential of the device. However, the drain current always increases with the applied gate voltage. It is also observed that the electron quasi-Fermi potential（e QFP）decreases as the channel potential starts to decrease, and there are hiphops in the channel e QFP for higher applied drain voltages. The channel regime resistance is also observed for higher gate length, which has a great effect on the I–V characteristics of the DG TFET device. These channel regime electrical properties will be very useful for determining the tunneling current; thus these results may have further uses in developing analytical current models.

关键词： si-DG TFET electron quasi-Fermi potential I–V characteristics drain extension regime resistance resistive drop channel properties

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Aeromagnetic signatures of Precambrian shield and suture zones of Peninsular India

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Geoscience Frontiers 2014年第1期5卷 3-15页

作者： Mita Rajaram s.P.anand Indian Institute of Geomagnetism New PanvelNavi Mumbai 410218 India

In many Precambrian provinces the understanding of the tectonic history is constrained by limited exposure and aeromagnetic data provide information below the surface cover of sediments, water, etc. and help build a tectonic model of the region. The advantage of using the aeromagnetic data is that the data set has uniform coverage and is independent of the accessibility of the region. In the present study, available reconnaissance scale aeromagnetic data over Peninsular India are analyzed to understand the magnetic signatures of the Precambrian shield and suture zones thereby throwing light on the tectonics of the region. Utilizing a combination of differential reduction to pole map, analytic signal, vertical and tilt derivative and upward continuation maps we are able to identify magnetic source distribution, tectonic elements, terrane boundaries, suture zones and metamorphic history of the region. The mag- netic sources in the region are mainly related to charnockites, iron ore and alkaline intrusives. Our analysis suggests that the Chitradurga boundary shear and sileru shear are terrane boundaries while we interpret the signatures of Palghat Cauvery and Achankovil shears to represent suture zones. Processes like metamorphism leave their signatures on the magnetic data： prograde granulites （charnockites） and retrograde eclogites are known to have high susceptibility. We find that charnockites intruded by alkali plutons have higher magnetization compared to the retrogressed charnockites. We interpret that the Dharwar craton to the north of isograd representing greenschist to amphibolite facies transition, has been subjected to metamorphism under low geothermal conditions. some recent studies suggest a plate tectonic model of subduction collision-accretion tectonics around the Palghat Cauvery shear zone （PCsZ）. Our analysis is able to identify several west to east trending high amplitude magnetic anomalies with deep sources in the region from Palghat Cauvery shear t

关键词： Aeromagnetic interpretation southern Granulite Terrain Metamorphism Precambrian subduction Collision

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Co~Ⅱ,Ni~Ⅱ和Cu~Ⅱ与L-组氨酸和L-谷氨酸在1,4二氧六环-水混合物中混合配体配合物的生成平衡(英文)

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无机化学学报 2012年第9期28卷 1790-1798页

作者： Raju s Bharath kumar Naik K anand kumar B Nageswara Rao G school of Chemistry Andhra UniversityVisakhapatnam-530003India

在303.0 K维持离子强度为0.16 mol.L-1,体积比为0.0～60.0%的1,4二氧六环-水混合体系中用pH滴定法研究了CoⅡ,NiⅡ和CuⅢ离子与L-组氨酸和L-谷氨酸混合配体配合物的生成平衡。对不同的金属(M)与L-组氨酸(L)、L-谷氨酸(X)比(cM∶cL∶cX=1... 详细信息

在303.0 K维持离子强度为0.16 mol.L-1,体积比为0.0～60.0%的1,4二氧六环-水混合体系中用pH滴定法研究了CoⅡ,NiⅡ和CuⅢ离子与L-组氨酸和L-谷氨酸混合配体配合物的生成平衡。对不同的金属(M)与L-组氨酸(L)、L-谷氨酸(X)比(cM∶cL∶cX=1∶2.5∶2.5,1∶2.5∶5.0,1∶5.0∶2.5)的体系进行了碱量滴定。计算了三元配合物的稳定常数并用MINIQUAD75对各种模型进行了优化。根据统计数据和残差分析结果选取了最合适的化学模型。检测到的物种:对CoII而言为MLX2H2-和MLX23-,对NiⅡ和CuⅡ而言为MLXH,MLX2H2-和MLX23-。就有关浓度和稳定性对三元物种与二元物种进行了比较。三元物种的额外稳定性可归因于电荷中和,鳌合效应,堆叠作用和氢键等。

关键词：化学物种混合配体配合物氨基酸组氨酸谷氨酸

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Expression of genes that control core fucosylation in hepatocellular carcinoma: systematic review

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World Journal of Gastroenterology 2019年第23期25卷 2947-2960页

作者： Pamela A Norton anand s Mehta Department of Microbiology and Immunology Drexel University College of MedicinePhiladelphiaPA 19102United States Department of Cell and Molecular Pharmacology Medical University of South CarolinaCharlestonSC 29425United States

BACKGROUND Changes in N-linked glycosylation have been observed in the circulation of individuals with hepatocellular carcinoma. In particular, an elevation in the level of core fucosylation has been observed. However, the mechanisms through which core fucose is increased are not well understood. We hypothesized that a review of the literature and related bioinformatic review regarding six genes known to be involved in the attachment of core fucosylation, the synthesis of the fucosylation substrate guanosine diphosphate(GDP)-fucose, or the transport of the substrate into the Golgi might offer mechanistic insight into the regulation of core fucose *** To survey the literature to capture the involvement of genes regulating core Nlinked fucosylation in hepatocellular carcinoma METHODs The PubMed biomedical literature database was searched for the association of hepatocellular carcinoma and each of the core fucose-related genes and their protein products. We also queried The Cancer Genome Atlas Liver hepatocellular carcinoma(LIHC) dataset for genetic, epigenetic and gene expression changes for the set of six genes using the tools at *** A total of 27 citations involving one or more of the core fucosylation-related genes(FPGT, FUK, FUT8, GMDs, sLC35 C1, TsTA3) and hepatocellular carcinoma were identified. The same set of gene symbols was used to query the371 patients with liver cancer in the LIHC dataset to identify the frequency of m RNA over or under expression, as well as non-synonymous mutations, copy number variation and methylation level. Although all six genes trended to moresamples displaying over expression relative to under-expression, it was noted that a number of tumor samples had undergone amplification of the genes of the de novo synthesis pathway, GMDs(27 samples) and TsTA3(78 samples). In contrast, the other four genes had undergone amplification in 2 or fewer *** Amplification of genes involved in the de novo pathway

关键词： Liver cancer N-linked glycosylation Fucose Guanosine diphosphate fucose Hepatocellular carcinoma

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Residual U-Network for Breast Tumor segmentation from Magnetic Resonance Images

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Computers, Materials & Continua 2021年第6期67卷 3107-3127页

作者： Ishu anand Himani Negi Deepika kumar Mamta Mittal Tai-hoon Kim sudipta Roy Department of Computer science&Engineering Bharati Vidyapeeth’s College of EngineeringNew Delhi110063India Department of Computer science&Engineering G B Pant Govt.College of EngineeringNew Delhi110020India Glocal Campus Konkuk UniversityChungju-si Chungcheongbuk-do27478Korea Washington University in st.Louis MO63110USA

Breast cancer positions as the most well-known threat and the main source of malignant growth-related morbidity and mortality throughout the *** is apical of all new cancer incidences analyzed among *** features substantially inuence the classication accuracy of malignancy and benignity in automated cancer *** are the precision of tumor segmentation and appropriateness of extracted attributes required for the *** this research,the authors have proposed a ResU-Net(Residual U-Network)model for breast tumor *** proposed methodology renders augmented,and precise identication of tumor regions and produces accurate breast tumor segmentation in contrast-enhanced MR ***,the proposed framework also encompasses the residual network technique,which subsequently enhances the performance and displays the improved training *** and above,the performance of ResU-Net has experimentally been analyzed with conventional U-Net,FCN8,*** performance is evaluated in the form of dice coefcient and MIoU(Mean Intersection of Union),accuracy,loss,sensitivity,specicity,*** results show that ResU-Net achieved validation accuracy&dice coefcient value of 73.22%&85.32%respectively on the Rider Breast MRI dataset and outperformed as compared to the other algorithms used in experimentation.

关键词： UNet segmentation residual network breast cancer dice coefcient MRI

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Hepatocellular carcinoma presenting as rapidly growing sternal mass:an unusual presentation

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Journal of Cancer Metastasis and Treatment 2016年第1期2卷 41-43页

作者： Rahul s.Kulkarni Asha s.anand Apurva A.Patel sandip A.shah Department of Medical and Paediatric Oncology Gujarat Cancer Research InstituteAhmedabad 380016GujaratIndia

Hepatocellular carcinoma(HCC)is the most common malignant tumor of the *** most frequent sites of metastases are lungs,regional lymph nodes,adrenals and ***,an isolated sternal metastasis from HCC as an initial presentation has been rarely reported.A 45-year-old man presented with a progressively increasing mass over the anterior chest *** investigations,it was found to be arising from the *** was suggestive of metastatic HCC,later confirmed by the presence of a 9 cm×7 cm mass in the liver on abdominal computed tomography scan and a significantly elevated serum alpha fetoprotein ***,metastasis from HCC should be included in the differential diagnosis of anterior chest wall mass and rapidly growing osseous metastases at unusual sites,even in the absence of signs of liver disease.

关键词： Bony metastasis hepatocellular carcinoma sternal mass

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Chemical, physical, thermal, textural and mineralogical studies of natural iron ores from Odisha and Chhattisgarh regions, India

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Journal of Central south University 2018年第12期25卷 2857-2870页

作者： anand Babu KOTTA swapan kumar KARAK Mithilesh kumar Department of Metallurgical and Materials Engineering National Institute of Technology

The chemical,physical,thermal and texture properties of iron ores from different regions of Odisha and Chhattisgarh regions,India,have been investigated to understand the compositional variations of Fe,Al2O3,siO2,s and *** were analyzed for its susceptibility to meet the industrial requirements,for various iron manufacture *** analysis indicated that the majority of the iron ores is rich in hematite(>90wt%),poor in gangue(siO2ands elements(Psse iron ores found to be *** peaks reviled that the gangue is in the form of kaolinite and quartz,and same was observed in Fourier transform infrared(FTIR)spectroscopy in the range of914to1034cm–*** iron ores were found to have excellent physical properties exemplify with tumbler index(82wt%–91wt%),abrasion index(1.27wt%–4.87wt%)and shatter index(0.87wt%–1.64wt%).FTIR and thermal analysis were performed to assimilate the analysis *** was found that these iron ores exhibit three endothermic reactions,which are dehydration below447K with mass loss of0.13wt%to1.7wt%,dehydroxylation at525–609K with mass loss of1.09wt%–4.49wt%and decomposition of aluminosilicates at597–850K with mass loss of0.13wt%–1.15wt%.From this study,we can conclude that due to its excellent physico-chemical characteristics,these iron ores are suitable for BF and DRI operations.

关键词： iron ore chemical analysis mineralogy analysis thermal analysis textural analysis

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用FeCl3溶液浸出从铜转炉渣和熔炼炉渣中回收有价金属

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江西冶金 1985年第1期 29-32页

作者： s.anand 彭青

本文报道了用FeCl3溶液浸出从铜转炉渣和熔炼炉渣中回收有价金属铜、钴、镍的研究。试料取自印度Ghatsila铜冶炼厂,转炉渣中含Cu4.03%、Ni1.99%、Co0.48%;熔炼炉渣中含Cu1.76%、Ni0.23%、Co0.19%。试验时,研究了搅拌、浸出时间与温度、F... 详细信息

本文报道了用FeCl3溶液浸出从铜转炉渣和熔炼炉渣中回收有价金属铜、钴、镍的研究。试料取自印度Ghatsila铜冶炼厂,转炉渣中含Cu4.03%、Ni1.99%、Co0.48%;熔炼炉渣中含Cu1.76%、Ni0.23%、Co0.19%。试验时,研究了搅拌、浸出时间与温度、FeCl3浓度、固/液及粒度等各参数之间的影响。在最佳条件下,转炉渣中铜、钴、镍的提取率分别为92%、24%、28%;而熔炼炉渣中铜、钴、镍的提取率分别为54%,44%,71%。

关键词：转炉渣 FeCl3 有价金属

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采用加压稀硫酸浸出法从铜炉渣中提取钴、镍和铜

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湿法冶金 1984年第2期 37-40页

作者： s.anand 沈洪

在早期研究中,我们确定了用氯化铁溶液和稀硫酸从转炉渣中浸出回收钴、镍和铜的最佳条件。应用这两种浸出剂,可以溶解出转炉渣中大部份的铜、镍和钴。但由于浸出液中含有大量铁,因此,从中分离和回收铜、镍和钴就很困难。本文研究了一种... 详细信息

在早期研究中,我们确定了用氯化铁溶液和稀硫酸从转炉渣中浸出回收钴、镍和铜的最佳条件。应用这两种浸出剂,可以溶解出转炉渣中大部份的铜、镍和钴。但由于浸出液中含有大量铁,因此,从中分离和回收铜、镍和钴就很困难。本文研究了一种加压稀硫酸浸出方法。在该法中利用氧化和水解作用使铁的污染降至最低程度。为了最大限度地溶解出铜、镍和钴,研究了浸出时间、矿浆含固量、粒度、酸浓度和氧分压等参数的影响。在最佳条件下,可浸出约90％的铜和95％以上的镍和钴,而铁的浸出率却仅为0.8％。

关键词：含固量矿浆浸出法稀硫酸

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Role of dental plaque,saliva and periodontal disease in Helicobacter pylori infection

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World Journal of Gastroenterology 2014年第19期20卷 5639-5653页

作者： Pradeep s.anand Kavitha P Kamath sukumaran Anil Department of Periodontics People’s College of Dental Sciences and Research CentreBhopalMadhya Pradesh 462037India Department of Oral Pathology People’s Dental AcademyBhopalMadhya Pradesh 462037India Department of Periodontics and Community Dentistry College of DentistryKing Saud UniversityRiyadh 11545Saudi Arabia

Helicobacter pylori (H. pylori) infection is one of the most common bacterial infections in humans. Although H. pylori may be detected in the stomach of approximately half of the world’s population, the mechanisms of transmission of the microorganism from individual to individual are not yet clear. Transmission of H. pylori could occur through iatrogenic, fecal-oral, and oral-oral routes, and through food and water. The microorganism may be transmitted orally and has been detected in dental plaque and saliva. However, the role of the oral cavity in the transmission and recurrence of H. pylori infection has been the subject of debate. A large number of studies investigating the role of oral hygiene and periodontal disease in H. pylori infection have varied significantly in terms of their methodology and sample population, resulting in a wide variation in the reported results. Nevertheless, recent studies have not only shown that the microorganism can be detected fairly consistently from the oral cavity but also demonstrated that the chances of recurrence of H. pylori infection is more likely among patients who harbor the organism in the oral cavity. Furthermore, initial results from clinical trials have shown that H. pylori-positive dyspeptic patients may benefit from periodontal therapy. This paper attempts to review the current body of evidence regarding the role of dental plaque, saliva, and periodontal disease in H. pylori infection.

关键词： Helicobacter pylori Dental plaque saliva Oral cavity Periodontitis Periodontal therapy

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