Academic literature on the topic 'Peng ren'
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Journal articles on the topic "Peng ren"
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PENG, FENG, XIUFENG XIE, ZHENGQIANG PENG, XINGMIN WANG, and XIAOSHEN CHEN. "A taxonomic review of the genus Axinoscymnus Kamiya, with descriptions of three new species (Coleoptera, Coccinellidae)." Zootaxa 5154, no. 4 (June 16, 2022): 431–53. http://dx.doi.org/10.11646/zootaxa.5154.4.2.
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Eleven species of the genus Axinoscymnus Kamiya are revised, and additional three new species are described: Axinoscymnus pingxiangicus Peng et Chen sp. n., Axinoscymnus gongxinensis Peng et Chen sp. n. and Axinoscymnus hamulatus Peng et Chen sp. n. The genus Axinoscymnus is recorded from Nepal for the first time. Several species are also newly reported from the following countries: Axinoscymnus puttarudriahi Kapur et Munshi for China, Laos and Nepal, Axinoscymnus macrosiphonatus Hoàng for China and Laos, Axinoscymnua navicularis Ren et Pang for Laos and Nepal, Axinoscymnus cardilobus Ren et Pang and Axinoscymnus nigripennis Kamiya for Laos. Nomenclatural history, diagnoses, detailed description, illustrations, and distribution for most species have been provided. A key to the species of this genus is also given.
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Liang, Peng, Zhiyong Jason Ren, and Xia Huang. "Capacitive deionization and electrosorption: from desalination to ion management." Environmental Science: Water Research & Technology 6, no. 2 (2020): 241–42. http://dx.doi.org/10.1039/d0ew90004d.
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Lu, Da-Yong, Peng-Peng Zhu, Hong-Ying Wu, Bin Xu, Jian Ding, and Ting-Ren Lu. "RETRACTED: Human Suicide, Modern Diagnosis Assistance and Magic Bullet Discovery." Central Nervous System Agents in Medicinal Chemistry 19, no. 1 (March 18, 2019): 15–23. http://dx.doi.org/10.2174/1871524919666190115130655.
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The article entitled “Human Suicide, Modern Diagnosis Assistance and Magic Bullet Discovery”, by Da-Yong Lu, Peng-Peng Zhu, Hong-Ying Wu, Nagendra Sastry Yarla, Bin Xu, Jian Ding, Ajit Varki and Ting-Ren Lu, has been retracted on the request of one co-authors, Dr. Ajit Varki and Dr. Nagendra Sastry Yarla available at: Cent Nerv Syst Agents Med Chem 2019; 19(1): 15-23. http://www.eurekaselect.com/169003/article. The Corresponding Author Dr. Da-Yong Lu has included the names of the co-authors, Dr. Ajit Varki and Dr. Nagendra Sastry Yarla without their consent and the manuscript has been published in the journal, Central Nervous System Agents in Medicinal Chemistry (CNSAMC). Kindly see Bentham Science Policy on Article retraction at the link given below: (https://benthamscience.com/journals/central-nervous-system-agents-in-medicinal-chemistry/author-guidelines/) Submission of a manuscript to the respective journals implies that all authors have read and agreed to the content of the Copyright Letter or the Terms and Conditions. As such, this article represents a severe abuse of the scientific publishing sys-tem. Bentham Science Publishers takes a very strong view on this matter and apologizes to the readers of the journal for any inconvenience this may cause.
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Office, Editorial. "JACIII Distinguished Editor & Outstanding Reviewer Awards 2022." Journal of Advanced Computational Intelligence and Intelligent Informatics 26, no. 6 (November 20, 2022): 873. http://dx.doi.org/10.20965/jaciii.2022.p0873.
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The JACIII Distinguished Editor and Outstanding Reviewer Awards were established for the purpose to honor editors who have made a significant contribution to the growth of the JACIII in 2018 and to acknowledge reviewers who have made a significant contribution to reviewing in 2021. We express our deepest gratitude for their professional work, which we believe conductive to development of not only the JACIII but also scientific research. JACIII DISTINGUISHED EDITOR AWARD 2022 Bin Xin (Beijing Institute of Technology, China), Fei Yan (Changchun University of Science and Technology, China), Guohun Zhu (The University of Queensland, Australia), Jinhua She (Tokyo University of Technology, Japan), Keigo Watanabe (Okayama University, Japan), Luefeng Chen (China University of Geosciences, China), Tomohiro Yoshikawa (Suzuka University of Medical Science, Japan), Tomomi Hashimoto (Saitama Institute of Technology, Japan), Yasufumi Takama (Tokyo Metropolitan University, Japan), Zhen-Tao Liu (China University of Geosciences, China), and Zhihong Peng (Beijing Institute of Technology, China) JACIII OUTSTANDING REVIEWER AWARD 2022 Emi Yuda (Tohoku University, Japan), Kehan Chen (Changchun University of Science and Technology, China), and Weiwu Ren (Changchun University of Science and Technology, China)
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Furmanik-Kowalska, Magdalena. "Which tradition is mine? Chinese women artists and cultural identity." Journal of Contemporary Chinese Art 6, no. 2 (September 1, 2019): 305–19. http://dx.doi.org/10.1386/jcca_00009_1.
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Abstract References to native culture are frequently in the foreground of works by Chinese women artists. When they make contact with different cultures, although not necessarily connected with leaving their place of birth thanks to the transfer of information and cultural heritage that has developed extremely efficiently in the era of globalization (Gordon Mathews), they see their own entanglement in the cultural tradition. In the process of constructing their identity they try to find answers to the following question: which part of the cultural tradition is mine? Which one do I identify with? In the case of Chinese women artists, is it the legacy of literati? Classic ink painting and calligraphy? Or perhaps women's crafts that bear no name? Or perhaps a mixture of inspirations? Such questions about material heritage might also be augmented by others that consider aspects of the immaterial heritage of China. This article explores how Chinese women artists such as Chen Qingqing, Qin Yufen, Shi Hui, Wang Xiaohui, Cheng Caroline, Lin Tianmiao, Zhang Yanzi, Man Fung-yi, Liu Liyun, Peng Wei, Chen Lingyang, Chen Qiulin, Zhang Ou and Liu Ren refer to their cultural tradition.
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Drewniak, Łukasz, and Sabina Drewniak. "The influence of the oxidation method on the properties of reduced graphene oxide." Photonics Letters of Poland 14, no. 3 (September 30, 2022): 47. http://dx.doi.org/10.4302/plp.v14i3.1154.
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Derivatives of graphene have become important materials due to their excellent properties. Graphene oxide and reduced graphene oxide are especially interesting because they are produced relatively easily, cheaply and quickly. Among many possible applications, reduced graphene oxide is a good candidate for sensor applications. Its properties can be controlled at the production stage. The precursor used and the method of oxidation have a significant influence on its properties. Therefore, it is worth take a closer look at them. In this paper we analyse the influence of the oxidation method on the size of the reduced graphene stock which determine the sensitivity of the rGO layer. We used AFM microscopy for this purpose. Full Text: PDF ReferencesS.M. Majhi, A. Mirzaei, H.W. Kim, S.S. Kim, "Reduced Graphene Oxide (rGO)-Loaded Metal-Oxide Nanofiber Gas Sensors: An Overview", Sensors 21, 4 (2021). CrossRef M. Pumera, "Graphene-based nanomaterials for energy storage", Energy Environ. Sci. 4 3 (2011). CrossRef X. Yu, H. Cheng, M. Zhang, Y. Zhao, L. Qu, G. Shi, "Graphene-based smart materials", Nat. Rev. Mater. 2, 9 (2017). CrossRef M.Y. Xia, Y. Xie, C.H. Yu, G.Y. Chen, Y.H. Li, T., Zhang, Q. Peng, "Graphene-based nanomaterials: the promising active agents for antibiotics-independent antibacterial applications", J. Control. Release 10 (2019). CrossRef X. Zhu, Y. Zhou, Y. Guo, H. Ren, C. Gao, "Nitrogen dioxide sensing based on multiple-morphology cuprous oxide mixed structures anchored on reduced graphene oxide nanosheets at room temperature", Nanotechnology 30 45 (2019). CrossRef Z. Wu, Y. Wang, S. Ying, M. Huang, C. Peng, "Fabrication of rGO/Cuprous Oxide Nanocomposites for Gas Sensing", IOP Conf. Ser.: Earth Environ. Sci. 706, 1 (2021). CrossRef S. Pei, H.M. Cheng, "The reduction of graphene oxide", Carbon 50, 9 (2012). CrossRef K. Spilarewicz-Stanek, A. Kisielewska, J. Ginter, K. Bałuszyńska, I. Piwoński, "Elucidation of the function of oxygen moieties on graphene oxide and reduced graphene oxide in the nucleation and growth of silver nanoparticles", RSC Adv. 6, 65 (2016). CrossRef R. Muzyka, S. Drewniak, T. Pustelny, M. Sajdak, Ł. Drewniak, "Characterization of Graphite Oxide and Reduced Graphene Oxide Obtained from Different Graphite Precursors and Oxidized by Different Methods Using Raman Spectroscopy Statistical Analysis", Materials 14, 4 (2021) CrossRef B. Lesiak, G. Trykowski, J. Tóth, et al. "Chemical and structural properties of reduced graphene oxide—dependence on the reducing agent", J Mater. Sci. 56 (2021). CrossRef .
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Xu, Ling. "Comment on “Weak tensile characteristics of loess in China — An important reason for ground fissures” by Ping Sun, Jian-bing Peng, Li-wei Chen, Yue-ping Yin, Shu-ren Wu [Engineering Geology 108 (2009) 153–159]." Engineering Geology 114, no. 1-2 (June 2010): 105–6. http://dx.doi.org/10.1016/j.enggeo.2010.04.007.
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Diyaljee, Vishnu. "Discussion of “New Model for Predicting Permanent Strain of Granular Materials in Embankment Subjected to Low Cyclic Loadings” by Wen-Bo Chen, Wei-Qiang Feng, Jian-Hua Yin, Jin-Miao Chen, Lalit Borana, and Ren-Peng Chen." Journal of Geotechnical and Geoenvironmental Engineering 147, no. 11 (November 2021): 07021026. http://dx.doi.org/10.1061/(asce)gt.1943-5606.0002656.
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Chen, Wen-Bo, Wei-Qiang Feng, Jian-Hua Yin, Jin-Miao Chen, Lalit Borana, and Ren-Peng Chen. "Closure to “New Model for Predicting Permanent Strain of Granular Materials in Embankment Subjected to Low Cyclic Loadings” by Wen-Bo Chen, Wei-Qiang Feng, Jian-Hua Yin, Jin-Miao Chen, Lalit Borana, and Ren-Peng Chen." Journal of Geotechnical and Geoenvironmental Engineering 147, no. 11 (November 2021): 07021027. http://dx.doi.org/10.1061/(asce)gt.1943-5606.0002657.
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Khubchandani, I. T. "H.-C. Lin, D.-L. Ren, Q.-L. He, H. Peng, S.-K. Xie, D. Su, X.-X. Wang: Partial stapled hemorrhoidopexy versus circular stapled hemorrhoidopexy for grade III–IV prolapsing hemorrhoids: a two-year prospective controlled study." Techniques in Coloproctology 16, no. 5 (August 31, 2012): 345. http://dx.doi.org/10.1007/s10151-012-0866-x.
Full textDissertations / Theses on the topic "Peng ren"
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Chen, Hu-sheng. "Studies on the aging of red ball point pen inks." Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288606.
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Yu, Qingtian. "Deep Learning-Enabled Multitask System for Exercise Recognition and Counting." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42686.
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Exercise is a prevailing topic in modern society as more people are pursuing a healthy
lifestyle. Physical activities provide unimaginable benefits to human well-being from
the inside out. 2D human pose estimation, action recognition and repetitive counting
fields developed rapidly in the past several years. However, few works combined them
together as a whole system to assist people in evaluating body poses, recognizing exercises and counting repetitive actions. The existing methods estimate pose positions first, and utilize human joints locations in the other two tasks. In this thesis, we propose a multitask system covering the three domains. Different from the methodology used in the literature, heatmaps which are the byproducts of 2D human pose estimation models are adopted for exercise recognition and counting. Recent heatmap processing methods are proven effective in extracting dynamic body pose information. Inspired by this, we propose a new deep-learning multitask model of exercise recognition & repetition counting, and apply these approaches to the multitask for the first time. To meet the needs of the multitask model, we create a new dataset Rep-Penn with action, counting and speed labels. A two-stage training strategy is applied in the training process. Our multitask system can estimate human pose, identify physical activities and count repeated motions. We achieved 95.69% accuracy in exercise recognition on Rep-Penn dataset. The multitask model also performed well in repetitive counting with 0.004 Mean Average Error (MAE) and 0.997 Off-By-One (OBO) accuracy on Rep-Penn dataset. Compared with existing frameworks, our method obtained state-of-the-art results.
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Peck, Megan. "Toward 'another cartography' : border negotiations with artists Frida Kahlo and Guillermo Gomez-Pena." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1307.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Arts and Humanities
Humanities
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Vargas, Gonzalez Andres. "SketChart: A Pen-Based Tool for Chart Generation and Interaction." Master's thesis, University of Central Florida, 2014. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6375.
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It has been shown that representing data with the right visualization increases the understanding of qualitative and quantitative information encoded in documents. However, current tools for generating such visualizations involve the use of traditional WIMP techniques, which perhaps makes free interaction and direct manipulation of the content harder. In this thesis, we present a pen-based prototype for data visualization using 10 different types of bar based charts. The prototype lets users sketch a chart and interact with the information once the drawing is identified. The prototype's user interface consists of an area to sketch and touch based elements that will be displayed depending on the context and nature of the outline. Brainstorming and live presentations can benefit from the prototype due to the ability to visualize and manipulate data in real time. We also perform a short, informal user study to measure effectiveness of the tool while recognizing sketches and users acceptance while interacting with the system. Results show SketChart strengths and weaknesses and areas for improvement.M.S.
Masters
Electrical Engineering and Computer Science
Engineering and Computer Science
Computer Science
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Moody, Christopher M. "Black writing ink analysis by direct infusion electrospray mass spectroscopy." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4537.
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An optimized method of extraction, an instrumental analysis method and data analysis was proposed for black writing inks based on direct infusion electrospray-mass spectrometry (ESI-MS). The sampling and analysis method is both minimally destructive and able to assess differences in inks from a reference collection of thirty ballpoint, gel, and rollerball inks. The methanol extracts of ink on paper samples were analyzed with three direct infusion (ESI-MS) methods. Each method varied scan voltage negative and positive, ESI fragmentor applied voltage (+120V, +0V, and -120V), and mobile phase additive. Direct infusion ESI-MS analysis, followed by pair-wise comparisons of the observed ion data in binary form allowed inks to be distinguished from each other. The photobleaching of the dye Basic Violet 3 (BV3) in ink-on-paper samples was examined to determine the use of degradation products as a marker of the age of the writing sample. The extent of photobleaching of BV3 was determined using several illumination sources. Pair-wise comparison of observed ion data was able to distinguish 29 of 30 ink samples using the combined three instrumental methods. Out of 435 pair-wise comparisons 429 pairs could be discriminated from each other using the combined three methods. This is a 98.6% discrimination with the combined analysis scheme.ID: 029051039; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.S.)--University of Central Florida, 2010.; Includes bibliographical references (p. 80-82).
M.S.
Masters
Department of Chemistry
Sciences
Forensic Science
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Shearn, Jodi Growitz. "CHIVALRY THROUGH A WOMAN'S PEN: BEATRIZ BERNAL AND HER CRISTALIÁN DE ESPAÑA: A TRANSCRIPTION AND STUDY." Diss., Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/189839.
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SpanishPh.D.
This doctoral dissertation is a paleographic transcription of a Spanish chivalric romance written by Beatriz Bernal in 1545. Cristalián de España, as the text is referred to, was printed twice in its full book form, four parts and 304 folios. It was also well-received outside of the Iberian Peninsula, and published twice in its Italian translation. This incunabulum is quite a contribution to the chivalric genre for many reasons. It is not only well-written and highly entertaining, but it is the only known Castilian romance of its kind written by a woman. This detail cannot be over-emphasized. Chivalric tales have been enjoyed for centuries and throughout many different mediums. Readers and listeners alike had been enjoying these romances years before the libros de caballerías reached the height of their popularity in Spain. Hundreds of contributions to the genre are still in print today and available in numerous translations. Given this reality, it seems highly suspect that this romance, penned by a woman, and of excellent quality, is not found on the shelves next to other texts of the genre. Cristalián, despite what scholars of the genre have erroneously posited, was not an obscure text in sixteenth-century Spain. Bookstore and print-shop inventories of its time list numerous copies of Bernal's romance in bound book form, which confirm that Cristalián was circulating for at least sixty years. The purpose of this dissertation is two-fold. In order for Cristalián to be included in conversations of any nature, it must be made available. This transcription of Book I and II seeks to accomplish that. Secondly, current scholarship must re-imagine erroneous constructions of sixteenth-century reader's preferences. These prevalent constructions have often excluded noteworthy contributions to literature, especially those written by women. My aim is to redress this imbalance by analyzing Beatriz Bernal's written text and her writing strategies. The first three sections of the accompanying study more thoroughly address the challenges facing women writers in sixteenth-century Spain while also considering issues of literacy, reader preferences, and text distribution of the period. The last sections of the study are devoted specifically to the chivalric genre, and to Bernal's exemplary romance, Cristalián de España. Also included in the appendix are woodcuts from both Castilian editions, the proemio from the second edition, the chapter rubrics from Book I and II, and an index of characters from the narration.
Temple University--Theses
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Alwaqyan, Abdulaziz Yousif. "IN VITRO VALIDATION OF LASER FLUORESCENCE-BASED SUBGINGIVAL CALCULUS DETECTION INSTRUMENT." Master's thesis, Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/309690.
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Oral BiologyM.S.
Objectives: Because subgingival dental calculus in periodontal pockets is associated in the etiopathogenesis of progressive human periodontitis, and is difficult to accurately detect with conventional manual explorers and probing instruments, there is an urgent clinical need for more reliable diagnostic methods for the detection and localization of subgingival dental calculus. A low-power ( 40). Results: A total of 50 root surfaces exhibited a modified SCI score = 0 (no root surface dental calculus detected), whereas 19 root surfaces revealed modified SCI scores = 1 (root surface dental calculus detected in thin deposits, but not in a markedly-raised ledge), and 31 root surfaces had modified SCI scores = 2 (root surface dental calculus detected in a markedly-raised ledge). A high level of both intra- and inter-examiner reproducibility of visible red laser fluorescence intensity readings was found with both tooth root evaluation protocols, despite the marked differences between the two dentist examiners in their educational backgrounds and length of clinical dental care experience, with correlation coefficient values ranging from r = 0.948 to r = 0.999 for duplicate assessments made by the two independent examiners themselves and between them. Mean visible red laser fluorescence intensity values recorded by the two independent examiners with the instrument perpendicularly directed along tooth root surfaces (first evaluation protocol) were 98.9 (standard deviation ± 0.4) and 99.0 (standard deviation ± 0.0), respectively, on dental calculus-positive root surfaces, which were significantly greater than mean values of 10.9 (standard deviation ± 6.0) and 12.3 (standard deviation ± 8.1), respectively, recorded on dental calculus-negative root surfaces (P 40 for visible red laser fluorescence intensity values offered 90% sensitivity, 100% specificity, a 100% positive predictive value, a 90.9% negative predictive value, and an odds ratio relationship of 36.6 [95% confidence interval = 16.7, 80.2] for the presence of dental calculus on tooth root surfaces. Conclusions: These in vitro findings document, for the first time, a high level of intra- and inter-examiner reproducibility of visible red laser fluorescence intensity measurements on human tooth root surfaces, regardless of the whether the instrument is directed either perpendicular or parallel to extracted tooth root surfaces. Dental calculus- positive root surfaces on extracted teeth exhibited significantly higher visible red laser fluorescence intensity scores than dental calculus-negative root surfaces, particularly when dental calculus deposits were present in markedly-raised ledges. In addition, a threshold level of > 40 for visible red laser fluorescence intensity readings offered greater diagnostic accuracy than a threshold level of ≥ 5 for identification of dental calculus on root surfaces of extracted teeth. These findings provide further in vitro validation for use of the visible red laser fluorescence-emitting instrument for detection of dental calculus on root surfaces of human teeth. Additional validation studies, conducted clinically in vivo, on the visible red laser fluorescence-emitting instrument are warranted.
Temple University--Theses
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CHAVES, Daniela Augusto. "Regime t?rmico da camada ativa e pemafrost na Pen?nsula de Keller, Ilha Rei George, Ant?rtica (2011-2014)." Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/2385.
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CAPES
The monitoring of soil thermal regime in periglacial environment is critical to identify the presence of permafrost and the thickness of the active layer. This study was conducted to identify factors that influence the soil thermal regime in Keller Peninsula, from 02/2011 to 02/2015. For such monitoring were installed air temperature sensors (Tar) and soil (Ts) and soil moisture at different depths and sites in Keller Peninsula. Preliminary analyzes of the data were based on the monthly average, annual; maximum and minimum averages and seasonal averages of Tar; Ts and soil moisture at different depths in the monitoring sites Ipanema Ref?gio II, Punta and site soil with Standard. After these analyzes identified the days of freezing, thawing, isothermal and freezing / thawing for each depth; the frequency distribution of temperature and temperature fluctuation during the period studied. The analyzes were carried out: the cross-correlation between the AAO series (Antarctic Oscillation Index), SOI (Southern Oscillation Index), Tar and Ts; linar simple regression between the annual average temperatures and the highest average maximum and annual minimum; Multiple linear regression between moisture apparent soil thermal difuvividade (DTA); N_fator the rate of freezing and its relationship with DTA and; the harmonic analysis of the AAO series, SOI, MEI (multivariate ENSO index), Tar and Ts. The highest and lowest Tar annual average in the four years and four sites studied was 1.7 ?C on site Ref?gio II and 4.8 ?C in place with Standard Solo, respectively. The period in which the soil has more time under the active layer system was Ipanema and Ref?gio II. The highest and the lowest sum of degree days of thawing and freezing were 154.6 and 263.3, respectively Ref?gio II In cross-correlation analysis the delay phase between the waves of Tar and Ts was less than one month in all sites. The correlation between the AAO x Tar Tar and SOI x occurs up to 5 months delay between the phases. Simple linear regression analysis indicated that in Ipanema and Ref?gio II, the soil thermal regime restricted the active layer. On site soil with Standard and Punta Plaza thermal regime presented reached the permafrost before the layer of 0.80 and 1.00 m deep respectively. In the frequency histograms showed predominance of temperatures around 0 ?C and the first difference graph shown that temperature variations are stronger in summer. Multiple linear regrass?o analysis showed that the moisture influence on the DTA in most cases. The freezing N_fator was inversely proportional to close DTA the surface, but when compared with the DTA in depth the relationship approaches. The harmonic analysis identified that climate variability in ways that influenced the Tar these sites between the years 2011-2014, were the AAO and SOI indices. In general, the thermal insulation provided by covering the thickest snow in places Punta Plaza and Solo with Standard allowed the permafrost were found at depths less when compared to the Ref?gio II and Ipanema sites that were less thick blanket of snow.
O monitoramento do regime t?rmico do solo em ambiente periglacial ? fundamental para identificar a presen?a do permafrost e a espessura da camada ativa. Este estudo foi realizado para identificar os fatores que influenciam no regime t?rmico do solo na Pen?nsula Keller, entre 02/2011 a 02/2015. Para tal monitoramento foram instalados sensores de temperatura do ar (Tar) e do solo (Ts) e umidade do solo em diferentes profundidades e s?tios na Pen?nsula de Keller. As an?lises preliminares dos dados foram realizadas com base nas m?dias mensais, anuais; m?dias m?ximas e m?nimas e m?dias sazonais de Tar, Ts e umidade do solo em diferentes profundidades nos s?tios de monitoramento Ipanema, Ref?gio II, Punta e s?tio Solo com Padr?o. Ap?s essas an?lises foram identificados os dias de congelamento, descongelamento, isot?rmicos e congelamento/descongelamento para cada profundidade; as frequ?ncias de distribui??o das temperaturas e oscila??o de temperatura durante o per?odo estudado. As an?lises realizadas foram: a de correla??o cruzada entre as s?ries de AAO (Antarctic Oscillation Index), SOI (Southern Oscillation Index), Tar e Ts; a regress?o linar simples entre as temperaturas m?dias anuais e a maior m?dia m?xima e m?nima anuais; a regress?o linear m?ltipla entre umidade a difuvividade t?rmica aparente do solo (DTA); o ?ndice N_fator de congelamento e sua rela??o com a DTA e; a an?lise harm?nica das s?ries AAO, SOI, MEI (multivariate ENSO index), Tar e Ts. A maior e a menor Tar m?dia anual nos quatro anos e nos quatro s?tios estudados foi de -1,7 ?C no s?tio Ref?gio II e de ?4,8 ?C no s?tio Solo com Padr?o, respectivamente. O per?odo em que o solo apresentou mais tempo sob o regime de camada ativa foi Ipanema e Ref?gio II. A maior e a menor soma de graus dias de descongelamento e congelamento foram de 154,6 e ?263,3, respectivamente em Ref?gio II. Na an?lise de correla??o cruzada o atraso de fases entre as ondas de Tar e Ts foi inferior a um m?s em todos os s?tios. A correla??o entre a AAO x Tar e SOI x Tar ocorre com at? cinco meses de atraso entre as fases. A an?lise de regress?o linear simples indicou que, em Ipanema e em Ref?gio II, o regime t?rmico do solo se restringe a camada ativa. No s?tio Solo com Padr?o e Punta Plaza o regime t?rmico apresentado alcan?ou o permafrost antes da camada de 0,80 e 1,00 m de profundidade respectivamente. Os histogramas de frequ?ncia apresentaram predomin?ncia de temperaturas em torno de 0 ?C e o gr?fico de primeira diferen?a mostrou que as varia??es da temperatura foram mais fortes no ver?o. A an?lise de regrass?o linear m?ltipla mostrou que a umidade influencia na DTA na maior parte dos casos. O N_fator de congelamento foi inversamente proporcional a DTA pr?xima a superf?cie, por?m quando o compara com a DTA em profundidade essa rela??o se aproxima. A an?lise harm?nica permitiu identificar que os modos de variabilidade clim?tica que influenciaram a Tar nesses s?tios, entre os anos de 2011 a 2014, foram os ?ndices AAO e SOI. De maneira geral, o isolamento t?rmico proporcionado por cobertura da neve mais espessa nos s?tios Punta Plaza e Solo com Padr?o, permitiu que o permafrost fosse encontrado a profundidades menores quando comparado com os s?tios Ref?gio II e Ipanema, que obtiveram cobertura da neve menos espessa.
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Fuchs, René [Verfasser], Volker [Akademischer Betreuer] Lipka, Christiane [Akademischer Betreuer] Gatz, and Thomas [Akademischer Betreuer] Teichmann. "Analysen zum subzellulären Lokalisationsverhalten der atypischen Myrosinase PEN2 in Arabidopsis-Mikroben-Interaktionen / Rene Fuchs. Gutachter: Volker Lipka ; Christiane Gatz ; Thomas Teichmann. Betreuer: Volker Lipka." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://d-nb.info/1042846685/34.
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Zhu, Xiaobo. "DESIGN AND SYNTHESIS OF BLOCK COPOLYMERS THAT SELF ASSEMBLE INTO MICELLES WITH CONTROLLED ACID AND LIPASE CATALYZED DEGRADATION." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/250374.
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ChemistryPh.D.
Poly (ε-caprolactone) block poly (ethylene glycol) (PCL-b-PEG) is typical amphiphilic block copolymer that self assembles into micelles in water where the hydrolytically stable hydrophilic PEG segment forms the exterior corona and the core contains the hydrophobic degradable PCL block. Micelles from PCL-b-PEG block copolymers are among the top candidates for application as transport and delivery systems. The efficiency for micellar transported therapeutics to reach the desired site is currently limited by processes that prematurely degrade the micelle and this issue is stimulating increased effort in evaluating how micelles respond to the conditions encountered in the digestive and circulatory systems. Drug loaded micelles introduced into the blood and digestive systems encounter a wide range of conditions, enzymes and other substances that can promote micelle precipitation, degradation and premature release of therapeutics. Furthermore, PEG-b-PCL diblock copolymer micelle stability in aqueous suspension, low drug loading content and burst drug releasing are also the critical issues in drug delivery system. One central objective for this research is to identify and utilize polymer structural features that influence the hydrolytic stability of micelles toward acid, base and enzyme catalyzed hydrolysis of the polyester cores. The strategy of by preparing a set of triblock copolymers (PEG-b-PBO-b-PCL) formed by inserting a short hydrophobic non-hydrolyzable PBO segment between the PEG and PCL blocks as an approach to increase the barrier for water to reach the sensitive interface ester at the surface of the PCL core and thus increase the micelle stability at acidic aqueous medium. However, the triblock micelle doesn't significantly reduce the rate of lipase enzyme catalyzed degradation of micelle from PCL-b-PEG-OMe. Another objective for this research is to prepare PCL-b-PEG diblock copolymer micelles that have high stability in aqueous suspensions, high drug loading content and selective reactions with lipase enzymes. The working hypothesis is that the micelles with charged groups at the terminus of PEG corona will increase the micelle dispersion stability and stabilize micelles with much larger hydrophobic cores through intermicelle electrostatic repulsions. When the micelle corona and lipase enzyme have the same charge there will be an increased barrier to reaction. The comparison of micelle dispersion stabilities micelles from HO-PCL-b-PEG-CH2CH=CH, [PCL-b-PEG-RCO2]- Na+ and [PCL-b-PEG-RSO3]-Na+ demonstrates that the micelles with ionic coronas have significantly higher suspension stability. Kinetic of lipase catalyzed degradation of micelles with corona charges shows that lipases selective reaction with corona charged micelles which could be used as design feature to selectivity for therapeutic transport and release. Modification hydrophilic-hydrophobic interface and corona charges of PCL-b-PEG diblock copolymer micelle are successful chemical strategies to increase micelle stability and control acid and lipase enzymes catalytic degradation.
Temple University--Theses
Books on the topic "Peng ren"
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zhen, Yi, and Xiao ping. Peng ren. Bei jing: Zhong guo he huo ping chu ban she, 1991.
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Pollan, Michael. Peng: Ren lei ru he tou guo peng ren zhuan hua zi ran, zi ran you ru he jie you peng ren zhuan hua ren lei. Xinbei Shi: Da jia chu ban, 2014.
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Wankuang, Shao, ed. Zhongguo peng ren zong heng. Beijing: Zhongguo shi pin chu ban she, 1989.
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xian, He rong. Peng ren xiao qiao men. Chang chun: Ji lin ke xue ji zhu chu ban she, 2009.
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Yu, Zhang, ed. Shi yong peng ren pei cai. Shanghai: Shanghai shi ji chu ban gu fen you xian gong si, 2007.
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Dang da peng ren yi shu. Shenzhen Shi: Xinjiang mei shu she ying chu ban she, 1997.
Find full textBook chapters on the topic "Peng ren"
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Nunkoo, M. Irfan, M. Bilall Saib-Sunassy, Henri Li Kam Wah, and Sabina Jhaumeer Laulloo. "Forensic Analysis of Black, Blue, Red, and Green Ballpoint Pen Inks." In Crystallizing Ideas – The Role of Chemistry, 323–39. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31759-5_21.
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Langton, Nina. "2. Screencast Delivery of Feedback on Writing Assignments for Beginning Japanese Language Students: An Alternative to the ‘Red Pen’." In Technology-Supported Learning In and Out of the Japanese Language Classroom, edited by Erica Zimmerman and Abigail McMeekin, 31–59. Bristol, Blue Ridge Summit: Multilingual Matters, 2019. http://dx.doi.org/10.21832/9781788923514-005.
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Huang, Shao Hui, Avinash Pilar, Jishi Li, Zhiyuan Xu, and Brian O’Sullivan. "Contemporary Opportunities in Nonsurgical Management of Locoregionally Advanced Head and Neck Squamous Cell Carcinoma." In Critical Issues in Head and Neck Oncology, 119–37. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63234-2_9.
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AbstractThe majority of head and neck squamous cell carcinoma (HNSCC) is now classified into two major types: HPV-mediated [HPV(+)] and HPV-negative [HPV(−)]. Within this paradigm, the 8th edition TNM staging system effected modification about what is considered “locally-advanced” HNSCC. Two phase-III trials (RTOG 1016 and De-ESCALATE HPV) disappointingly showed that cetuximab is not as effective in HPV(+) oropharyngeal cancer (OPC) compared to cisplatin with radiotherapy. The recent NRG HN002 de-escalation trial demonstrated the presence of outcome heterogeneity within “low-risk” HPV(+) OPC, some of which continue to benefit from cisplatin combined with reduced-dose radiotherapy. Moreover, distant metastasis (DM) has consolidated its position as the leading cause of death in HPV(+) OPC and strategies to mitigate it are necessary. Unanswered questions and ongoing-emerging concepts exist in both HPV(+) and HPV– diseases. These include understanding the importance of risk under the rubric of extranodal extension (ENE), including degrees of pathological ENE (pENE), and emerging knowledge about radiologic ENE (rENE). Strategies addressing modification of biological phenomena have become paramount and includes hypoxia modification (such as smoking cessation). In addition, contemporary evidence suggests that immunotherapy improves survival in recurrent/metastatic settings, and it is now also being explored in primary disease presentations in combination with (chemo-)radiotherapy. Induction chemotherapy achieves DM reduction in nasopharyngeal cancer but has only been explored minimally in HPV(+) OPC. Evidence that loco-regional management can be de-intensified following a favorable response to induction treatment would provide an attractive option for HPV(+) OPSCC patients while also addressing risk of developing distant disease.
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"Nature’s Red Pen." In Herding Hemingway’s Cats. Bloomsbury Sigma, 2017. http://dx.doi.org/10.5040/9781472948281.0016.
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Feldman, Leah. "Broken Verse." In On the Threshold of Eurasia, 176–207. Cornell University Press, 2018. http://dx.doi.org/10.7591/cornell/9781501726507.003.0005.
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This chapter discusses the influence of materialist aesthetics on the formation of Azerbaijani Soviet nationalism, which emerged as a cohesive discourse during the first ten years of Soviet control in the poetry of the Baku Red Pens. This chapter highlights the role of Marxist speech acts in shaping the revolution on the periphery.
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"Use of Lead Isotopes as Natural Tracers of Metal Contamination—A Case Study of the Penn Mine and Camanche Reservoir, California." In The Environmental Geochemistry of Mineral Deposits, 567–83. Society of Economic Geologists, 1997. http://dx.doi.org/10.5382/rev.06.30.
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Falvey, Eddie. "“I Suggest you get Yourself a Pen.” Watching Re-Animator Today." In Re-Animator, 25–38. Liverpool University Press, 2021. http://dx.doi.org/10.3828/liverpool/9781800859401.003.0003.
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This chapter analyses the text of Re-Animator using a series of critical frameworks. After recounting the plot of the film, the textual analysis moves focus to the film’s uses of body horror, a popular mode within the context of 1980s American horror, which provides metaphysical commentary on death and representation. Next the chapter considers the film’s focal interest in mad science as a vehicle for the discussion of toxic masculinity which is often rendered impotent in the film. Maintaining attention on gender, the analysis then tracks the film’s inversion of the scream queen trope as a way of prefacing the film’s status as a meta-horror film.
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"“I suggest you get yourself a pen.” Watching Re-Animator Today." In Re-Animator, 25–38. Auteur, 2021. http://dx.doi.org/10.2307/j.ctv1z9n1zd.5.
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"Red Pens and Relationships: Retrospect and Prospects in Higher Education." In Beyond Fragments, 197–215. Routledge, 2012. http://dx.doi.org/10.4324/9780203045961-16.
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"IV. Tabellen zur Mitgliederstatistik (Raphaela Tautz und Rea Triyandafilidis)." In Geschichte des bundesdeutschen PEN-Zentrums von 1951 bis 1990, 569–70. Max Niemeyer Verlag, 2003. http://dx.doi.org/10.1515/9783110910650.569.
Full textConference papers on the topic "Peng ren"
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Ding, Wowo, Yihui Yang, Wei You, and Yunlong Peng. "Morphological analysis: to evaluate the pattern of Residential building based on wind performance." In 24th ISUF 2017 - City and Territory in the Globalization Age. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/isuf2017.2017.5977.
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Yihui Yang, Wei You, Yunlong Peng, Wowo Ding*, School of Architecture and Urban Planning, Nanjing University, No.22 Hankou Rd, Jiangsu 210093, P.R.China. E-mail:yi_hui_yang@outlook.com, youwei@nju.edu.cn, 249626020@qq.com, dww@nju.edu.cn,Phone number:15850561165, 13852293251, +86 25 83593020, Keyword: Residential plot, Apartment pattern, performance evaluation, wind environment Conference topics and scale: Tools of analysis in urban morphology Residential morphological patterns are reflection of people's living habits and tradition, local climate and building regulations, so that one of those factors could be studied through in order to understand residential morphological patterns. Based upon our previous study, we do know that in China living habits and local climate mainly influence the shape of residential buildings and apartment patterns, but we do not know whether the pattern of residential plots determined by FAR and sunshine hours are suitable for wind environment related to residential environmental quality. Therefore, it is very significant to evaluate wind environment within residential plots based on the apartment pattern controlled by various building codes. Our study focuses on the pattern of Slab apartments in Nanjing, which are mainly used in China, and selects 40 residential slices with different plot shapes, plot FAR, building heights and sizes. Based upon MATLAB, we have got all geometrical data between buildings among these slices to identify the spatial pattern character of each residential plot. Through evaluating wind environment of these slices by simulation we can obtain wind speed, pressure and age of air and choose the pattern of age of air as the main evaluation factor of wind performance. Correlation analysis will be made between the apartment patterns and pattern of age of air, by doing so, each typical space between buildings will be evaluated. Our study will reveal the relevance of apartment pattern and wind environment, which can be used to support and improve design in the future. References（95 words） Oke. T. R (1988) ‘Street Design and Urban Canopy Layer Climate’, Energy and Buildings11, 103-113. Wowo Ding, Youpei Hu, Pingping Dou (2012) ‘Study on Interrelationship between Urban Pattern and Urban Microclimate’, Architectural Journal 527, 16-21. Edward Ng, Chao Yuan, Liang Chen, Chao Ren, Jimmy C.H. Fung (2011) ‘Improving the wind environment in high-density cities by understanding urban morphology and surface roughness: A study in Hong Kong’, Landscape and Urban Planning101, 59-74. Youpei Hu (2014) ‘A Performance-Oriented Study on the Morphological Optimization in a High Density Area Concerning Urban Heat Island Effect’, Architectural Journal 557, 23-29. *corresponding author
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Chimienti, Giovanni, Angelo Tursi, and Francesco Mastrototaro. "Biometric relationships in the red sea pen Pennatula rubra (Cnidaria: Pennatulacea)." In 2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea). IEEE, 2018. http://dx.doi.org/10.1109/metrosea.2018.8657885.
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Kyriakidis, I., P. Braun, and S. K. Chaudhary. "Effect of energy storage in increasing the penetration of RES in the remote island of Agios Efstratios." In 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2012. http://dx.doi.org/10.1109/pedg.2012.6254095.
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Latallo, Zbigniew S., and Craig M. Jackson. "INHIBITION OF HUMAN FACTOR Xa BY ITS ACTIVATOR FROM RUSSELL’ S VIPER VENOM." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643295.
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In contrast to bovine Factor Xa, human Factor Xa is inhibited by its activator from Russell’ s viper venom (X-CP). This inhibition occurs only in the presence of Ca ions. When Xa activity is measured using chromogenic substrates at pH 7.8, inhibition is more apparent at 37° C than 25° C, but can be reduced to nearly zero at high NaCl concentration. The extent of inhibition depends on the source of X-CP. X-CP isolated from Vipera russelli siamensis, which activates human Factor X with a K = 0.0187 ptt and Vmax of 5.26 x 10’ 11 M’ s-1 ([X-CP] 0.15 nM, 0.1 M NaCl, 0.01 M TRIS, 0.01 M HEPES, 5mM CaCl2, 0.1% PEG, pH 7.8, 25° C) inhibits the Factor Xa about twice as effectively as X-CP from Vipera russelli russelli for which the human Factor X activation rate is about half that observed with V. russelli siamensis. The inhibition is of a mixed type and results in doubling the apparent Km value and decreasing V by 20%. By fitting of the hyperbolic, mixed inhibition modelwhere E is human Xa, I is V. russellii siamensis X-CP, S is Cyclohexylglycyl-glycyl-arginine p-NA, the following values were calculated Km = 120 /xM, k, = 250 s’ 1, K. = 1.0 x 10"8, a = 2.0 and p = 0.82, (0.22 nM Xa, 0.1 M NaCl, 0.01 M TRIS, 0.01 M HEPES, 5 mM CaCl2 0.1% PEG pH 7.8, 25° C). Activation of human prothrombin by human Factor Xa as well as inhibition of the latter by antithrombin III are similarly affected by the binding of X-CP in the presence of Ca . X-CP binding to human Xa may explain some of the enigmatic differences in functional properties of bovine and human Factor Xa preparations.Supported by a Matching Grant from the American National Red Cross and by the S.E. Michigan Red Cross Blood Service
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Hubel, A., N. Bidault, and B. Hammer. "Transport Characteristics of Glycerol and Propylene Glycol in an Engineered Dermal Replacement." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32557.
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The ability to cryopreserve engineered tissues is important for the clinical application of therapies based on living cells. Cryopreservation facilitates the manufacture, transport and safety of cell-based therapies. The cryopreservation of cells and tissues had typically required the use of specialized solutions containing cryoprotective agents (CPAs). The addition of a CPA to the freezing solution may result in damage if it is not done properly. Tissues and intact organs can exhibit reduced cellular viability when exposed to sufficiently large step changes in external osmolarity resulting from introduction or removal of a cryopreservation solution (Pegg, 1972). Not only are large step changes in osmolarity potentially damaging, but also long-term exposure to even low concentrations of CPAs at room temperature can be lethal (Fahy et al., 1990). Exposure of cells to CPAs (in particular dimethyl sulfoxide, Me2SO) has been associated with a loss in viability with time of exposure. Subsequent studies have quantified specific cellular changes resulting from exposure to CPA, such as cytoskeletal reorganization, cross-linking of nuclear proteins, and alterations in membrane permeability (cf. ref (Fahy et al., 1990) for review) which may account for the loss in viability.
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Ren, Bo, Jerry Jensen, Ian Duncan, and Larry Lake. "Buoyant Flow of H2 Versus CO2 in Storage Aquifers." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210327-ms.
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Abstract Hydrogen will play an important role in the quest to decarbonize the world’s economy by substituting fossil fuels. In addition to the development of hydrogen generation technologies, the energy industry will need to increase hydrogen storage capacity to facilitate the development of a robust hydrogen economy. The required hydrogen storage capacity will be much larger than current hydrogen and natural gas storage capacities. There are a several geological storage options for hydrogen that include depleted hydrocarbon fields and aquifers, where more research is needed until the feasibility to store hydrogen at scale is proven. Here, we investigate the buoyant flow of H2 (as a working gas) versus CO2 (as a cushion gas) separately in a representative storage aquifer. Buoyant flow can affect the maximum storage, capillary trapping, likelihood of leakage, and deliverability of aquifer-stored hydrogen. After building a two-dimensional geological reservoir model initially filled with saline water, we ran numerical simulations to determine how hydrogen placed at the bottom of an aquifer might rise through the water column. The Leverett j-function is used to generate heterogeneous capillary entry pressure fields that correlate with porosity and permeability fields. Hydrogen viscosities were based on the Jossi et al. correlation, and the density was modeled using the Peng-Robinson equation of state. We then simulated several scenarios to assess flow during short- (annually) and long- (several years) term storage. For comparison purposes, we also ran CO2 storage simulations using the same geological model but with CO2-brine-rock properties collected from the literature. For a representative storage aquifer (323 K, 15.7 MPa, and mean permeability of 200 mD), significant fingering occurred as the hydrogen rose through the saline water column. The hydrogen experienced more buoyant flow and created flow paths with increased fingering when compared with CO2. Individual hydrogen fingers are thinner than the CO2 fingers in the simulations and the tip of hydrogen finger fronts propagated upward roughly twice as fast as the CO2 front for a typical set of heterogeneity indicators (Dykstra-Parson’s coefficient Vdp = 0.80, and dimensionless autocorrelation length λdx = 2). The implications of buoyant flow for hydrogen in saline aquifers include an increased threat of leakage, more residual trapping of hydrogen, and, therefore, the need to focus more on the heterogeneity and lateral correlation behavior of the repository. If hydrogen penetrates the caprock of an aquifer, it will leak faster than CO2 and generate more vertical flow pathways. We identify possible depositional environments for clastic aquifers that would offer suitable characteristics for storage.
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Latallo, Zbigniew S., and Craig M. Jackson. "HUMAN MEIZOTHROMBIN 1, ITS ISOLATION AND PROPERTIES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644661.
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Meizothrombin (MT) and meizothrombin des Fragment 1 (MT1) are intermediates in the conversion of prothrombin to α-thrombin (αTH). Due to their transient character, properties of these enzymes are difficult to establish. Isolation of MT1 was achieved by affinity chromatography on D-Phe-Pro-Arginal (FPRal)immobilized on Affi-Gel 10 as originally employed for thrombin purification (Patel et al. Biochim.Biophys. Acta 748,321 (1983)). Human prethrombin 1 was activated with the purified activator from Echis carinatus venom in the presence of Ca++;, benzamidine and FPRal gel at pH 7.8. After exhaustive washing the MT1 was eluted with 0.1 M hydroxylamine in 0.15 M Na acetate buffer, pH 5.5. Under these conditions the MT1 is stable and can bestored at -70°C. Upon changing the pH of the preparation to 8.0, complete conversion into aTH occurred atroom temperature within 48 hours. Homogeneity of both preparations wasdemonstrated by PAGE. The Km and ke, values for MT1 measured on Tos-Gly-Pro-Arg pNA(0.1 M NaCl, 0.01 M TRIS, 0.01 M HEPES, 0.1% PEG, pH 7.8, 25°C) were 15.7 /iM and 126 s-1. The kinetic con stants for the aTH resulting from autocatalytic degradation of MT1 were indistinguishable from those previously established forαTH obtained by Xa activation i.e. 4.77 /μM and 126 s-1. Clotting activity of MT1 was found to be only one fifth as high as that of the resulting μTH(746 u/mg vs. 3900 u/mg as tested using the NIH standard) .Inhibitionof MTl by antithrombin III was alsomuch less rapid than αTH andmost importantly, it was not affected by high affinity heparin( Mr20,300). Under conditions of the experiment (0.3 M NaCl, 0.0rl M TRIS, 0.01 M HEPES, 2.5 mM EDTA, 0.1% PEG, pH 7.8, 25°C; [ATIII] 100 nM, [E] 10 nM), the pseudo first order rate constants in the absence of heparin were 4.04 × 10-3V1 (MTl) and 1.13 × 10-3V1 (αTH), giving apparent second order rate constants of 4.04 × 103 and 1.13 × 10-4M-1s-1. In the presence of 4.5 nM of heparin the observed first order rate constant for MTl remained unchanged whereas it increased to 6.241 × 10-3s-1 (5.5 fold) for αTH. This apparent lack of an effect of heparin may be of significance in vivo.Supported by a Matching Grant from the American National Red Cross and by the Southeastern Michigan Blood Service.
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Robertson, Miles C., Peter J. Newton, Tao Chen, and Ricardo F. Martinez-Botas. "Development and Commissioning of a Blowdown Facility for Dense Gas Vapours." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91609.
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Abstract The Organic Rankine Cycle is a candidate technology for low grade heat recovery, from sources as diverse as geothermal, solar and industrial/vehicle waste heat. The organic working fluids used within these systems often display significant real-gas effects, especially in proximity of the thermodynamic critical point. Significant research has therefore been performed on the design of real-gas expansion devices, including both positive displacement and rotordynamic machinery. 3D Computational Fluid Dynamics (CFD) is commonly used for performance prediction and flow field analysis within expanders, and experimental validation of these simulations within a real-gas environment are scarce within the literature. This paper therefore presents a dense-gas blowdown facility constructed at Imperial College London, for the purpose of experimentally validating numerical simulations of these fluids. The system-level design process for the blowdown rig is detailed within this paper, including the sizing and specification of major components. A hemispherically-ended 3.785 L cylinder was selected as the main blowdown vessel, allowing a designpoint pressure and temperature of 3751 kPa and 477 K, respectively. Regulating valves were placed either side of the test section, allowing a Pressure Ratio to be fixed across the measurement section. The primary design focus of this paper is that of the test section — a converging-diverging nozzle producing an expansion of Mach 2 at the nozzle exit plane. The nozzle profile is generated by Method of Characteristics (MoC) modified to account for real-gas effects. Both mechanical and fluid dynamic design are discussed, along with location and thermal management of the nine pressure transducers, located along the nozzle centreline. A series of blowdown tests are conducted, firstly for a fluid conforming closely to the ideal gas Equation of State - Nitrogen (N2) at room temperature. A comparison between the experimental measurements and a CFD analysis of these results is taken as a benchmarking example. A second set of tests with refrigerant R1233zd(E) are run, across multiple inlet pressures - CFD simulations are subsequently performed, with the refrigerant modeled by Ideal Gas, Peng-Robinson, and Helmholtz energy (via REF-PROP) Equations of State. An error analysis is conducted for each, identifying that an increase in fluid model fidelity leads to reduced deviation between simulation and experiment. An average discrepancy of 11.1% in nozzle Pressure Ratio with the Helmholtz energy EoS indicates an over-prediction of expander power output within the CFD simulation.
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West, Jennifer L. "Near Infrared Absorbing Nanoparticles for Photothermal Cancer Therapy." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192982.
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Advances in nanotechnology are expected to lead to the development of new and improved therapeutic strategies, amenable to targeting, that may ultimately revolutionize cancer treatment. For example, we have developed a nanoparticle-based photothermal cancer therapy that has shown high efficacy with virtually no damage to normal tissues (Hirsch et al., 2003, O’Neal et al., 2004, Lowery et al., 2006). This therapeutic strategy employs nanoparticles called nanoshells that are designed to strongly absorb near infrared (NIR) light. Metal nanoshells are a new type of nanoparticle composed of a dielectric (for instance, silica) core coated with an ultrathin metallic (for instance, gold) layer. Gold nanoshells possess physical properties similar to gold colloid, in particular, a strong optical absorption due to the collective electronic response of the metal to light. The optical absorption of gold colloid yields a brilliant red color that has been of considerable utility in consumer-related medical products, such as home pregnancy tests. In contrast, the optical response of gold nanoshells depends dramatically on the relative size of the nanoparticle core and the thickness of the gold shell. By varying the relative core and shell thicknesses, the color of gold nanoshells can be varied across a broad range of the optical spectrum that spans the visible and the near infrared spectral regions (Oldenburg et al., 1999). Gold nanoshells can be made to either preferentially absorb or scatter light at their plasmon resonance by varying the size of the particle relative to the wavelength of the light at their optical resonance. For cancer therapy, nanoshells are injected intravenously and allowed to accumulate in tumor sites due to the leakiness of the vasculature (EPR) and/or molecular targeting. Accumulation in the tumor sites peaks after several hours, at which time the tissue region is illuminated with NIR light for several minutes. NIR light is not absorbed to a significant extent by tissue components, but is strongly absorbed by nanoshells within the tumor. This leads to rapid heating of the tumor tissue without damage to adjacent normal tissues. In preliminary studies, complete tumor regression and 100% survival with no regrowth has been achieved. Mice with CT26 colon carcinoma tumors (4 mm diameter) were injected intravenously with NIR absorbing nanoshells that were coated with PEG-SH. 6 hr following nanoshell injection, the tumor sites were illuminated with light from a 820 nm diode laser (4 W/cm2) for 4 min. Animals in a sham group received a saline injection instead of nanoshells prior to NIR treatment, while a control group was untreated. Tumor size and animal survival were then tracked. As shown in Figure 1, all tumors treated with nanoshells had completely regressed within 10 days of treatment, while sham and control tumors had grown dramatically. Furthermore, all sham and control animals died within 20 days of treatment, while all nanoshell-treated mice continue to live (+12 months) with no tumor regrowth (Figure 2, O’Neal et al., 2004). Excellent nanoshell biocompatibility has been observed.