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161.
162.
The frequent string mining problem is to find all substrings of a collection of string databases which satisfy database specific
minimum and maximum frequency constraints. Our contribution improves the existing linear-time algorithm for this problem in
such a way that the peak memory consumption is a constant factor of the size of the largest database of strings. We show how
the results for each database can be stored implicitly in space proportional to the size of the database, making it possible
to traverse the results in lexicographical order. Furthermore, we present a linear-time algorithm which calculates the intersection
of the results of different databases. This algorithm is based on an algorithm to merge two suffix arrays, and our modification
allows us to also calculate the LCP table of the resulting suffix array during the merging. 相似文献
163.
Adrian walker 《电气制造》2007,(9):90-90
由于密封装置中缺乏有效的热管理,将不可避免地导致温度上升至极点,从而损坏电气设备。热量在密封装置中迅速累积,如果不采取其他措施,热量只能经由密封装置的外壳,以辐射和对流的形式缓慢地向外散发。 相似文献
164.
Marin Cernea Adrian Manea Daniele Piazza Carmen Galassi Eugeniu Vasile 《Journal of the American Ceramic Society》2007,90(6):1728-1732
Fine-grain BaTi0.87 Sn0.13 O3 (BTS13 ) powder was synthesized from an oxalate precursor and used to prepare sintered ferroelectric BTS13 ceramics. The evolution of the morphology and structure of a BTS13 precipitate precursor as a function of temperature was analyzed. We compare the sintering behavior as well as the dielectric properties of the BTS13 ceramics obtained using uniaxial and cold isostatic pressing. 相似文献
165.
166.
Johnson Suzanne B.; Tomer Adrian; Cunningham Walter R.; Henretta John C. 《Canadian Metallurgical Quarterly》1990,9(4):493
Tested the equality of the factor pattern of adherence to treatment of childhood diabetes identified by S. B. Johnson et al (see record 1988-05437-001) across 2 independent samples. Samples of 162 and 157 diabetics (aged 6–18 yrs) were studied. Factors 1–4, Exercise, Injection, Diet Type, and Eating/Testing Frequency, were confirmed. Factor 5, Diet Amount, proved to be too complex; the adherence measures comprising this factor (total calories and concentrated sweets consumed) are best treated as separate, single-indicator constructs. Results support a multivariate concept of adherence, offer insight into the nature of the components underlying diabetes adherence, and provide measurement information for reliable component estimation. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
167.
Couples with alcohol and relationship problems often report poor communication, yet little is known about the communication of maritally distressed couples in which the woman abuses alcohol (MDWA couples). Compared with maritally distressed couples without alcohol problems (MDNA) and couples with neither problem (NDNA), MDWA couples showed a distinctive pattern of negative communication. Similar to MDNA men, MDWA men spoke negatively to their partners but listened positively to their partners much like NDNA men. MDWA women listened negatively, much as MDNA women did, but spoke positively, like NDNA women did. The interactions of MDWA couples can be characterized as a male-demand-female-withdraw pattern, which is a gender reversal of the female-demand-male-withdraw pattern often observed in MDNA couples. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
168.
Heinis Christian; Huber Adrian; Demartis Salvatore; Bertschinger Julian; Melkko Samu; Lozzi Luisa; Neri Paolo; Neri Dario 《Protein engineering, design & selection : PEDS》2001,14(12):1043-1052
Phage display has been shown to facilitate greatly the selectionof polypeptides with desired properties by establishing a directlink between the polypeptide and the gene that encodes it. However,selection for catalytic activities displayed on phage remainsa challenge, since reaction products diffuse away from the enzymeand make it difficult to recover catalytically active phageenzymes.We have recently described a selection methodology in whichthe reaction substrate (and eventually the reaction product)is anchored on calmodulin-tagged phageenzymes by meansof a calmodulin binding peptide. Phage displaying a catalyticactivity are physically isolated by means of affinity reagentsspecific for the product of reaction. In this study, we investigatedthe efficiency of selection for catalysis by phage display,using a ligase (the Escherichia coli biotin ligase BirA) andan endopeptidase (the rat trypsin His57 相似文献
169.
Wioletta Florkiewicz Dagmara Malina Klaudia Pluta Karolina Rudnicka Adrian Gajewski Ewa Olejnik Boena Tyliszczak Agnieszka SobczakKupiec 《IET nanobiotechnology / IET》2019,13(7):726
The study was focused on the phytochemicals‐mediated biosynthesis of silver nanoparticles using leaf extracts and infusions from Cynara scolymus. To identify the antioxidant activity and total phenolic content, the 1,1‐diphenyl‐1‐picrylhydrazyl and Folin–Ciocalteau methods were applied, respectively. The formation and stability of the reduced silver ions were monitored by UV–vis spectrophotometer. The particle sizes of the silver nanoparticles were characterised using the dynamic light scattering technique and scanning electron microscope. The phase composition of the obtained silver nanoparticles was characterised by X‐ray diffraction. The silver nanoparticles suspension, artichoke infusion, and silver ions were separately tested towards potential cytotoxicity and pro‐inflammatory effect using mouse fibroblasts and human monocytes cell line, respectively. The total phenolic content and antioxidant activity of ethanol extract and infusion were found significantly higher as compared to aqueous extract and infusion. The UV–visible spectrophotometric analysis revealed the presence of the characteristic absorption band of the Ag nanoparticles. Moreover, it was found that with the increasing volume of plant extract, the average size of particles was increased. Biocompatibility results evidently showed that silver nanoparticles do not induce monocyte activation, however in order to avoid their cytotoxicity suspension at a concentration <2 ppm should be applied.Inspec keywords: pharmaceuticals, health and safety, renewable materials, toxicology, organic compounds, antibacterial activity, X‐ray diffraction, nanomedicine, nanoparticles, nanofabrication, suspensions, ultraviolet spectra, visible spectra, scanning electron microscopy, silver, particle sizeOther keywords: phytochemicals‐mediated biosynthesis, antioxidant activity, total phenolic content, dynamic light scattering technique, silver nanoparticles suspension, scanning electron microscopy, Cynara scolymus, 1,1 diphenyl‐1‐picrylhydrazyl method, cytotoxicity, immune compatibility, leaf extracts, UV‐vis spectrophotometry, particle size, Folin‐Ciocalteau methods, phase composition, X‐ray diffraction, artichoke infusion, pro‐inflammatory effect, mouse fibroblasts, human monocytes cell line, Ag 相似文献
170.