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| 1 | Global characterization and monitoring of forest cover using Landsat data: opportunities and challenges显示文摘The compilation of global Landsat data-sets and the ever-lowering costs of computing now make it feasible to monitor the Earth’s land cover at Landsat resolutions of 30 m.In this article,we describe the methods to create global products of forest cover and cover change at Landsat resolutions.Nevertheless,there are many challenges in ensuring the creation of high-quality products.And we propose various ways in which the challenges can be overcome.Among the challenges are the need for atmospheric correction,incorrect calibration coefficients in some of the data-sets,the different phenologies between compila-tions,the need for terrain correction,the lack of consistent reference data for training and accuracy assessment,and the need for highly automated character-ization and change detection.We propose and evaluate the creation and use of surface reflectance products,improved selection of scenes to reduce phenological differences,terrain illumination correction,automated training selection,and the use of information extraction procedures robust to errors in training data along with several other issues.At several stages we use Moderate Resolution Spectro-radiometer data and products to assist our analysis.A global working prototype product of forest cover and forest cover change is included. | John R.Townshend Jeffrey G.Masek Chengquan Huang Eric.F.Vermote Feng Gao Saurabh Channan Joseph O.Sexton Min Feng Raghuram Narasimhan Dohyung Kim Kuan Song Danxia Song Xiao-Peng Song Praveen Noojipady Bin Tan Matthew C.Hansen Mengxue Li Robert E.Wolfe | 2012 | International Journal of Digital Earth2012，5，5： | 10 |
| 2 | 预混合粉材料烧结显示文摘深入了解预混合粉材料的烧结,对促进铁基粉末冶金零件产业的发展具有重要作用。这涉及到固态烧结与液相烧结两个方面。本论文讨论了添加下列合金元素粉末的预混合粉材料的烧结:(1)石墨粉;(2)镍粉与石墨粉;(3)铜粉与石墨粉;(4)磷铁粉状的磷;(5)硼铁粉状的硼。另外,还讨论了这些材料的显微组织与力学性能。 | K. S. Narasimhan F. J. Semel 韩凤麟 | 2009 | 粉末冶金工业2009，，5： | 6 |
| 3 | Role of pomegranate and citrus fruit juices in colon cancer prevention显示文摘Colorectal cancer is the second leading cause of cancer-related deaths in the United States.Recent studies prove that though chemotherapeutic agents are being used for the treatment of colon cancer,they become non-effective when the cancer progresses to an invasive stage.Since consumption of certain dietary agents has been linked with various cancers,fruit juices have been investigated for their consistently protective effect against colon cancer.The unique biochemical composition of fruit juices is responsible for their anticancer properties.In this review,the chemo-preventive effect of fruit juices such as pomegranate and citrus juices against colon cancer are discussed.For this purpose,the bioavailability,in vitro and in vivo effects of these fruit juices on colorectal cancer are highlighted.Moreover,there is a scarcity of studies involving human trials to estimate the preventive nature of these juices against colon cancer.This review will support the need for more preclinical tests with these crude juices and their constituents in different colorectal cancer cell lines and also some epidemiological studies in order to have a better understanding and promote pomegranate and citrus juices as crusaders against colon cancer. | Saravana Kumar Jaganathan Muthu Vignesh Vellayappan Gayathri Narasimhan Eko Supriyanto | 2014 | World Journal of Gastroenterology2014，20，16： | 6 |
| 4 | 替代扩散合金化粉末的粘结剂处理粉的研制显示文摘为替代扩散-合金化粉末,研制了巧妙设计的粘结剂处理的预混合粉。一类粘结剂处理的材料,符合MPIF标准35'粉末冶金结构零件材料标准'中扩散-合金化材料的化学组成范围。另一类粘结剂处理的预混合粉,是用来替代高性能扩散-合金化材料的,这些材料都是以含Mo1.5%(质量分数)的预合金化低合金钢为基体的。考察了新材料的烧结态和淬火-硬化与回火状态的性能,并将之和化学组成相似的扩散-合金化材料进行了比较。 | W. Brian James F. J. Semel K. S. Narasimhan 韩凤麟(译) | 2009 | 粉末冶金工业2009，19，3： | 5 |
| 5 | Chemopreventive effect of apple and berry fruits against colon cancer显示文摘Colon cancer arises due to the conversion of precancerous polyps(benign)found in the inner lining of the colon.Prevention is better than cure,and this is very true with respect to colon cancer.Various epidemiologic studies have linked colorectal cancer with food intake.Apple and berry juices are widely consumed among various ethnicities because of their nutritious values.In this review article,chemopreventive effects of these fruit juices against colon cancer are discussed.Studies dealing with bioavailability,in vitro and in vivo effects of apple and berry juices are emphasized in this article.A thorough literature survey indicated that various phenolic phytochemicals present in these fruit juices have the innate potential to inhibit colon cancer cell lines.This review proposes the need for more preclinical evidence for the effects of fruit juices against different colon cancer cells,and also strives to facilitate clinical studies using these juices in humans in large trials.The conclusion of the review is that these apple and berry juices will be possible candidates in the campaign against colon cancer. | Saravana Kumar Jaganathan Muthu Vignesh Vellayappan Gayathri Narasimhan Eko Supriyanto Dyah Ekashanti Octorina Dewi Aqilah Leela T Narayanan Arunpandian Balaji Aruna Priyadarshini Subramanian Mustafa Yusof | 2014 | World Journal of Gastroenterology2014，20，45： | 3 |
| 6 | Soil-Landscape Estimation and Evaluation Program(SLEEP)to predict spatial distribution of soil attributes for environmental modeling显示文摘The spatial distribution of surface and subsurface soil attributes is an important input to environmental modeling.Soil attributes represent an important input to the Soil and Water Assessment Tool(SWAT),which influence the accuracy of the modeling outputs.An ArcGIS-based tool was developed to predict soil attributes and provide inputs to SWAT.The essential inputs are digital elevation model and field observations.Legacy soil data/maps can be used to derive observations when recent field surveys are not available.Additional layers,such as satellite images and auxiliary data,improve the prediction accuracy.The model contains a series of steps(menus)to facilitate iterative analysis.The steps are summarized in deriving many terrain attributes to characterize each pixel based on local attributes as well as the characteristics of the contributing area.The model then subdivides the entire watershed into smaller facets(subdivisions of subwatersheds)and classifies these into groups.A linear regression model to predict soil attributes from terrain attributes and auxiliary data are established for each class and implemented to predict soil attributes for each pixel within the class and then merged for the entire watershed or study area.SLEEP(Soil-Landscape Estimation and Evaluation Program)utilizes Pedo-transfer functions to provide the spatial distribution of the necessary unmapped soil data needed for SWAT prediction.An application of the tool demonstrated acceptable accuracy and better spatial distribution of soil attributes compared with two spatial interpolation techniques.The analysis indicated low sensitivity of SWAT prediction to the number of field observations when SLEEP is used to provide the soil layer.This demonstrates the potential of SLEEP to support SWAT modeling where soil data is scarce. | Feras M.Ziadat Yeganantham Dhanesh David Shoemate Raghavan Srinivasan Balaji Narasimhan Jaclyn Tech | 2015 | International Journal of Agricultural and Biological Engineering2015，8，3： | 3 |
| 7 | Pediatric Nd:YAG laser capsulotomy in the operating room: review of 87 cases显示文摘AIM: To report a large series of children having Nd:YAG laser capsulotomy in the operating room using the lateral decubitus position. METHODS: Medical records of children who underwent Nd:YAG laser capsulotomy in the operating room at Ann & Robert H. Lurie Children's Hospital of Chicago between September 2008 and April 2017 were reviewed. Induction of general anesthesia and intubation was performed in the supine position after which the patient was placed in lateral decubitus position. The Nd:YAG laser capsulotomy was performed using a standard protocol. At the completion of the procedure, the patient was turned back into the supine position and extubated. RESULTS: This study included 87 eyes of 60 patients. Patient's age ranged from 1 to 18 y(mean 6.4±4.1 y). In most cases(84/87, 97%), the procedure was performed under general anesthesia. In all cases, good focus on the membrane was achieved, and the procedure was performed successfully. There were no intraoperative ocular or anesthesia-related complications. CONCLUSION: When performing Nd:YAG laser capsulotomy in the operating room, the lateral decubitus position allowsan easy and safe approach without the risk of potentially devastating complications that have been associated with the previously described sitting and prone positions. | Michael Kinori Narasimhan Jagannathan Anne M Langguth Marjorie A Sasso Marilyn B Mets Bahram Rahmani Hawke Yoon Rebecca Mets-Halgrimson Sudhi P Kurup Janice L Zeid | 2019 | International Journal of Ophthalmology(English edition)2019，12，5： | 2 |
| 8 | Has Power Shifted in the Grocery Channel?显示文摘 | Paul R. Messinger Chakravarthi Narasimhan | 1995 | Marketing Science1995，，2： | 2 |
| 9 | Improvement of the prediction performance of a soft sensor model based on support vector regression for production of ultra-low sulfur diesel显示文摘A novel data-driven, soft sensor based on support vector regression(SVR) integrated with a data compression technique was developed to predict the product quality for the hydrodesulfurization(HDS) process. A wide range of experimental data was taken from a HDS setup to train and test the SVR model. Hyper-parameter tuning is one of the main challenges to improve predictive accuracy of the SVR model.Therefore, a hybrid approach using a combination of genetic algorithm(GA) and sequential quadratic programming(SQP)methods(GA–SQP) was developed. Performance of different optimization algorithms including GA–SQP, GA, pattern search(PS), and grid search(GS) indicated that the best average absolute relative error(AARE), squared correlation coefficient(R2), and computation time(CT)(AARE = 0.0745, R2= 0.997 and CT = 56 s) was accomplished by the hybrid algorithm. Moreover, to reduce the CT and improve the accuracy of the SVR model, the vector quantization(VQ) technique was used. The results also showed that the VQ technique can decrease the training time and improve prediction performance of the SVR model. The proposed method can provide a robust, soft sensor in a wide range of sulfur contents with good accuracy. | Saeid Shokri Mohammad Taghi Sadeghi Mahdi Ahmadi Marvast Shankar Narasimhan | 2015 | Petroleum Science2015，12，1： | 2 |
| 10 | Soft sensor design for hydrodesulfurization process using support vector regression based on WT and PCA显示文摘A novel method for developing a reliable data driven soft sensor to improve the prediction accuracy of sulfur content in hydrodesulfurization(HDS) process was proposed. Therefore, an integrated approach using support vector regression(SVR) based on wavelet transform(WT) and principal component analysis(PCA) was used. Experimental data from the HDS setup were employed to validate the proposed model. The results reveal that the integrated WT-PCA with SVR model was able to increase the prediction accuracy of SVR model. Implementation of the proposed model delivers the best satisfactory predicting performance(EAARE=0.058 and R2=0.97) in comparison with SVR. The obtained results indicate that the proposed model is more reliable and more precise than the multiple linear regression(MLR), SVR and PCA-SVR. | Saeid Shokri Mohammad Taghi Sadeghi Mahdi Ahmadi Marvast Shankar Narasimhan | 2015 | Journal of Central South University2015，22，2： | 2 |
| 11 | Perspectives on risk management in supply chains显示文摘 | Ram Narasimhan Srinivas Talluri | 2009 | Journal of Operations Management2009，，： | 2 |
| 12 | Development and evaluation of Soil Moisture Deficit Index (SMDI) and Evapotranspiration Deficit Index (ETDI) for agricultural drought monitoring显示文摘 | B. Narasimhan R. Srinivasan | 2005 | Agricultural and Forest Meteorology2005，，1： | 2 |
| 13 | LaConf:A Localized Address Autoconfiguration Scheme for Wireless Ad Hoc Networks显示文摘We propose a localized address autoconfiguration (LaConf) scheme for wireless ad hoc networks.Address allocation information is maintained on the network border nodes,called addressing agents (AAs),which are locally identified by a geographic routing protocol GFG (Greedy-FACE-Greedy).When a node joins the network,it acquires an address from a neighboring AA (if any exists) by local communication or from the head AA (a geographic extreme AA) by GFG-based multi-hop communication.A Geographic Hash Table (GHT) is adopted for duplicate address detection.Each address is hashed to a unique location in the network field,and the associated assignment information is stored along the face perimeter enclosing that location (in the planar graph).When a node receives an address assignment,it consults with the perimeter nodes around the hash location of the assigned address about any conflicts.AAs detect network partitions and merger locally according to neighborhood change and trigger AA re-selection and network re-configuration (if necessary).We propose to apply a Connected Dominating Set (CDS) to improve the performance.We also evaluate LaConf through simulation using different planar graphs. | Xu Li Yanli Deng Amiya Nayak Ivan Stojmenovic Venkat Narasimhan | 2011 | Tsinghua Science and Technology2011，16，5： | 2 |
| 14 | Vision and the atmosphere 显示文摘 | Narasimhan S G Nayar S K | 2002 | International Journal of Computer Vision2002，，48： | 1 |
| 15 | Enhancement of plant - microbe interactions using a rhizosphere metabolomics - drien approach and its application in the removal of polychlorinated biphenyls 显示文摘 | Narasimhan K Basheer C Bajis V B | 2003 | Plant physio12003，132，： | 1 |
| 16 | Synthetic application of 1 ithiation reactions - VI: New synthesis of linear furoquinoline alkaloids显示文摘 | Narasimhan N S Mall R S | 1974 | Tetrahedren1974，30，2324： | 1 |
| 17 | Alginate production affects Pseudomonas aeruginosa biofilm development and architecture, but is not essential for biofilm formation显示文摘 | Stapper AP Narasimhan G Ohman DE | 2004 | J Med Microbiol2004，53，： | 1 |
| 18 | Contrast restoration of weather degraded images 显示文摘 | NARASIMHAN S G NAYAR S K | 2003 | IEEE Transactions on Pattern Analysis and Machine Intelligence2003，25，6： | 1 |
| 19 | Speed estimation in wireless systems using wavelets显示文摘 | R Narasimhan D C Cox | 1999 | IEEE Trans Commun1999，47，： | 1 |
| 20 | Spatial multiplexing with transmit antenna and constellation selection for correlated MIMO fading channels 显示文摘 | Narasimhan R | 2003 | IEEE Transctions on Signal Processing2003，51，11： | 1 |
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