Academic literature on the topic 'SB-13'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'SB-13.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "SB-13"

1

Menezes, Arnold H., Jeremy D. W. Greenlee, and Brian J. Dlouhy. "Syringobulbia in pediatric patients with Chiari malformation type I." Journal of Neurosurgery: Pediatrics 22, no. 1 (July 2018): 52–60. http://dx.doi.org/10.3171/2018.1.peds17472.

Full text
Abstract:
OBJECTIVESyringobulbia (SB) is a rare entity, with few cases associated with Chiari malformation type I (CM-I) in the pediatric population. The authors reviewed all pediatric cases of CM-I–associated SB managed at their institution in order to better understand the presentation, treatment, and surgical outcomes of this condition.METHODSA prospectively maintained institutional database of craniovertebral junction abnormalities was analyzed to identify all cases of CM-I and SB from the MRI era (i.e., after 1984). The authors recorded presenting symptoms, physical examination findings, radiological findings, surgical treatment strategy, intraoperative findings, and outcomes. SB cases associated with tumors, infections, or type II Chiari malformations were excluded.RESULTSThe authors identified 326 pediatric patients with CM-I who were surgically treated. SB was identified in 13 (4%) of these 326 patients. Headache and neck pain were noted in all 13 cases. Cranial nerve abnormalities were common: vagus and glossopharyngeal nerve dysfunction was the most frequent observation. Other cranial nerves affected included the trigeminal, abducens, and hypoglossal nerves. Several patients exhibited multiple cranial nerve palsies at presentation. Central sleep apnea was present in 6 patients.Syringomyelia (SM) was present in all 13 patients. SB involved the medulla in all cases, and extended rostrally into the pons and midbrain in 2 patients; in 1 of these 2 cases the cavity extended further rostrally to the cerebrum (syringocephaly). SB communicated with the fourth ventricle in 7 of the 13 cases.All 13 patients were treated with posterior fossa decompression with intradural exploration to ensure CSF egress out of the fourth ventricle and through the foramen magnum. The foramen of Magendie was found to be occluded by an arachnoid veil in 9 cases. Follow-up evaluation revealed that SB improved before SM. Cranial nerve palsies regressed in 11 of the 13 patients, and SB improved in all 13.CONCLUSIONSThe incidence of SB in our surgical series of pediatric patients with CM-I was 4%, and all of these patients had accompanying SM. The SB cavity involved the medulla in all cases and was found to communicate with the fourth ventricle in 54% of cases. Posterior fossa decompression with intradural exploration and duraplasty is an effective treatment for these patients.
APA, Harvard, Vancouver, ISO, and other styles
2

Soury, Raoudha, Mohamed Sahah Belkhiria, Habib Nasri, and Masood Parvez. "Dichlorido(5,10,15,20-tetraphenylporphyrinato-κ4 N)antimony(V) hemi{di-μ-chlorido-bis[trichloridoantimonate(III)]} dichloromethane monosolvate." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (May 2, 2012): m717—m718. http://dx.doi.org/10.1107/s1600536812018351.

Full text
Abstract:
The asymmetric unit of the title complex, [Sb(C44H28N4)Cl2][Sb2Cl8]0.5·CH2Cl2, is composed of a SbV complex cation wherein the Sb atom is hexacoordinated by four N atoms of the pyrrole rings of the tetraphenylporphyrinate (TPP) ligands and two chloride ions, a half di-μ-chlorido-bis[trichloridoantimonate(III)] counter-anion and a dichloromethane solvent molecule. In the cation, the average Sb—N distance is 2.066 (2) Å, while the Sb—Cl distances are 2.3410 (11) and 2.3639 (12) Å. The central unit of the cation, SbN4C20, is far from being planar, with deviations of atoms from the least-squares plane ranging from −0.110 (4) to 0.124 (4) Å. The Sb—Cl distances in the anion, which is located about an inversion center, lie in the wide range 2.3715 (13)–2.7489 (13) Å, the longest distances being between the Sb and bridging Cl atoms. The crystal structure is stabilized by intermolecular C—H...Cl interactions involving the cations, the anions and the solvent molecules. The solvent molecule is disordered over two orientations in a 0.901 (13):0.099 (13) ratio.
APA, Harvard, Vancouver, ISO, and other styles
3

Lo, Chun-Wan Timothy, Volodymyr Svitlyk, Dmitry Chernyshov, and Yurij Mozharivskyj. "The updated Zn–Sb phase diagram. How to make pure Zn13Sb10(“Zn4Sb3”)." Dalton Transactions 47, no. 33 (2018): 11512–20. http://dx.doi.org/10.1039/c8dt02521e.

Full text
Abstract:
The Zn–Sb system contains two well-known thermoelectric materials, Zn1−δSb and Zn13−δSb10(“Zn4Sb3”), and two other phases, Zn9−δSb7and Zn3−δSb2, stable only at high temperatures.
APA, Harvard, Vancouver, ISO, and other styles
4

Ilinca, G., and E. Makovicky. "Note on the definition of borodayevite 13(Sb,Bi) 2S17." Neues Jahrbuch für Mineralogie - Monatshefte 1997, no. 8 (October 11, 1997): 337–53. http://dx.doi.org/10.1127/njmm/1997/1997/337.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Holub, Josef, Petr Melichar, Zdeňka Růžičková, Jan Vrána, Derek A. Wann, Jindřich Fanfrlík, Drahomír Hnyk, and Aleš Růžička. "A novel stibacarbaborane cluster with adjacent antimony atoms exhibiting unique pnictogen bond formation that dominates its crystal packing." Dalton Trans. 46, no. 40 (2017): 13714–19. http://dx.doi.org/10.1039/c7dt02845h.

Full text
Abstract:
The reaction ofarachno-4,6-C2B7H13with SbCl3yieldsnido-7,8,9,11-Sb2C2B7H9, which simultaneously has Sb–Sb, Sb–B and Sb–C bonds and a unique ability to form pnictogen bonds.
APA, Harvard, Vancouver, ISO, and other styles
6

Rutten, Cindy, Filip Boen, and Jan Seghers. "Which School- and Home-Based Factors in Elementary School–Age Children Predict Physical Activity and Sedentary Behavior in Secondary School–Age Children? A Prospective Cohort Study." Journal of Physical Activity and Health 12, no. 3 (March 2015): 409–17. http://dx.doi.org/10.1123/jpah.2013-0128.

Full text
Abstract:
Background:To examine which school- and home-based factors at age 11 to 12 (6th grade, elementary school) predict physical activity (PA) and sedentary behavior (SB) at age 13 to 14 (8th grade, secondary school).Methods:Data at both time points were collected from 472 children (mean age baseline = 10.97, SD age = 0.41) and their parents. Children and parents completed self-reported questionnaires. Children’s height and weight were measured and children wore a pedometer for 7 days.Results:Hierarchical regression analyses revealed that predominantly boys (β = −.11), children with higher levels of pedometer-determined PA (β = .44) and more parental logistic support (β = .11) at age 11 to 12 displayed higher levels of pedometer-determined PA at age 13 to 14 (R2 = 39.1%). Similar results emerged for self-reported moderate-to-vigorous PA (R2 = 36.7%). Finally, lower levels of screen-based SB at age 13 to 14 (R2 = 32.5%) were most strongly related to lower levels of screen-based SB (β = .41), a medium/high socioeconomic status (β = −.18), and higher levels of parental PA explicit modeling (β = −.18) at age 11 to 12.Conclusions:Children’s PA/SB and the supportive role of parents at age 11 to 12 are strong predictors of PA and screen-based SB at age 13 to 14.
APA, Harvard, Vancouver, ISO, and other styles
7

Moore, Phillip, Jon Hundley, Jennifer Hundley, Edward A. Levine, Phillip Williford, Omar Sangueza, Thomas Mccoy, and Perry Shen. "Does Shave Biopsy Accurately Predict the Final Breslow Depth of Primary Cutaneous Melanoma?" American Surgeon 75, no. 5 (May 2009): 369–73. http://dx.doi.org/10.1177/000313480907500503.

Full text
Abstract:
Shave biopsy (SB) is used for the diagnosis of suspicious skin lesions, including melanoma. Its accuracy for melanoma has not been confirmed. We examined our experience with SB to determine its ability to predict true Breslow depth (BD). We performed a retrospective review of the tumor registry for all patients diagnosed with melanoma by SB from 1995 to 2004. Site and depth of lesion, tumor stage, correlation of BD between SB and wide local excision (WLE), and changes in surgical management due to discordance were examined. Melanoma-in-situ was defined as a depth of 0 for this analysis. One hundred thirty-nine patients were diagnosed with melanoma by SB. Pathology after WLE were as follows: 54 (39%) patients had no residual disease, 67 (48%) had a BD equal to or less than the SB, and 18 (13%) had a thicker BD compared with the SB. For these 18 patients, the median BD by SB and WLE was 1.1 mm (range 0-6.5) and 3.5 mm (range 0.5-20.5), respectively ( P = 0.0017). Upstaging of final BD from SB to WLE was significantly associated with increasing tumor depth and higher stage of melanoma ( P < 0.0001). Only seven of the 139 patients (5%) required further surgery because of the increased depth of the WLE. SB underestimated the final BD of melanoma in 13 per cent of patients, but changed the management of few patients. SB is a valuable tool for practitioners in the diagnosis of melanoma. Nevertheless, patients diagnosed with melanoma by SB should be counseled about the rare need for additional surgery.
APA, Harvard, Vancouver, ISO, and other styles
8

He, Allan, Volodymyr Svitlyk, Dmitry Chernyshov, and Yurij Mozharivskyj. "Identification, structural characterization and transformations of the high-temperature Zn9−δSb7 phase in the Zn–Sb system." Dalton Transactions 44, no. 48 (2015): 20983–90. http://dx.doi.org/10.1039/c5dt03509k.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wu, Zhao-Feng, Bing Hu, Zhi-Hua Fu, Hao Wang, Gang Xu, Liao-Kuo Gong, Guo-Dong Zou, Xiao-Ying Huang, and Jing Li. "[Ba13Sb36Cl34O54]8−: high-nuclearity cluster for the assembly of nanocluster-based compounds." Chemical Communications 55, no. 52 (2019): 7442–45. http://dx.doi.org/10.1039/c9cc02145k.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

SITTICHAROEN, Watcharin, Supachai AUKARANARAKUL, and Kitti KANTALUE. "Study of Thermal and Mechanical Properties of LLDPE/Sugarcane bagasse/Eggshell Hybrid Biocomposites." Walailak Journal of Science and Technology (WJST) 16, no. 10 (May 14, 2018): 739–51. http://dx.doi.org/10.48048/wjst.2019.4261.

Full text
Abstract:
Thermal and mechanical properties of neat linear low-density polyethylene (LLDPE) hybrid biocomposite with sugarcane bagasse and eggshell as a reinforcing filler were investigated. Hybrid biocomposites with sugarcane bagasse/eggshell was varied in the range of 6/4, 12/8, 17/13, 20/20, 13/17, 8/12, and 4/6 wt.%, were prepared and examined. The sugarcane bagasse fiber (Sb) was surface-treated using a silane coupling agent (3-(trimethoxysilyl) propyl methacrylate) and eggshell (Es) was treated using titanium (IV) isopropoxide. The results showed that high calcium oxide content was 99 % by weight in eggshell and silicon dioxide content was 50 % by weight in sugarcane bagasse. The tensile and flexural modulus and hardness of the composites with treated Sb/Es were higher than that of the untreated. These values of the LLDPE/Sb/Es composites increased with Sb/Es content. Differential scanning calorimetry (DSC) results show interesting trends in term of the influence of Sb/Es content, both with untreated and treated Sb/Es on the crystallization behavior of the composites but the melting and cold crystallization temperature of its composites did not obviously change. Thermogravimetric analysis (TGA) indicated their thermal stability of the composites, both untreated and surface-treated Sb/Es were lower than that of neat LLDPE. The sample molded from the biocomposite with surface-treated Sb/Es particles showed better dispersion of the materials inside.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "SB-13"

1

Junior, Luciano Gomes de Medeiros. "Efeitos magnetocalórico e barocalórico em Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=1521.

Full text
Abstract:
Estudos experimentais recentes revelaram que os compostos Mn[As(1-x) Sb(x)] e La[Fe(x) Si(1-x)]13 apresentam grandes valores para a variação isométrica da entropia e para a variação adiabática da temperatura. Estudos experimetais também mostram que o efeito magnetocalórico nestes compostos pode ser facilmente controlado através da dopagem e da pressão externa. Logo, tais dados experimentais, que necessitam de uma descrição teórica, indicam que estes compostos são bons candidatos para se estudar também o efeito barocalórico. Nesta tese, estudamos do ponto de vista teórico o efeito magnetocalórico nos compostos La[Fe(x)Si(1-x)]13 e Mn[As(1-x) Sb(x)], a pressão ambiente e a pressões externas. Estudamos também o efeito barocalórico, para alguns valores fixos do campo magnético. Este estudo teórico foi feito utilizando três modelos, a saber: (1) um modelo itinerante, de uma única rede.(2) um modelo itinerante mais elaborado com duas subredes incluindo a desordem química em uma das subredes. (3) um modelo de monentos localizados. Nossos resultados mostram que os dados experimentais dos potenciais magnetocalóricos são bem explicados pelos três modelos. Entretanto, o modelo com duas subredes é o que melhor descreve os mecanismos físicos envolvidos no efeito magnetocalórico dos compostos estudados. O modelo de monentos magnéticos localizados falha na explicação da entropia magnética a altas temperaturas e na magnetização de saturação a T= 0 K. O modelo itinerante, com uma única rede, não descreve corretamente a transferência eletrônica entre as subredes.
Recent experimental data revealed that the compounds La[Fe(x)Si(1-x)]13 and Mn[As(1-x)Sb(x)], present great values for the isothermal entropy change and the adiabatic temperature change. They also showed that the magnetocaloric effect in these compounds can be easily tuned through doping and external pressure. Therefore, such experimental data, which need a theoretical description indicate that these compounds are also good candidates to study the barocaloric effect. In this PhD thesis, we studied from the theoretical point of view the magnetocaloric effect in the compounds La[Fe(x)Si(1-x)]13 and Mn[As(1-x)Sb(x)], at ambient pressure and upon external pressures. We also studied the barocaloric effect,for some fixed values of the model, of only one lattice.(2)a more elaborated itinerant model with two sublattices including the chemical disorder in one sulattice. (3) model of localized magnetic moments. Our results show that the available experimental data of the magnetocaloric potentials are well explained by the three models. However, only the two sublattice itinerant model properly describes the physical mechanisms involved in the magnetocaloric effect of the studied compounds.The localized magnetic moment model fails in explaining the magnetic entropy at high temperatures and the saturation magnetization at T = 0 K. The effective one lattice itinerant model does not properly describe the eletronic transfer between the sublattices.
APA, Harvard, Vancouver, ISO, and other styles
2

Ichas, Valerie. "Étude sous pression des propriétés électroniques et magnétiques de composés de neptunium : NpGa3 et les monopnictures de Np : Net réalisation d'un réfrigérateur d'3He pour la mesure de la résistance électrique en dessous de 1,5K." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10041.

Full text
Abstract:
La resistance electrique des monopnictures de neptunium npas, npsb, npbi (structure nacl) et de npga#3 (structure aucu#3) a ete mesuree sous haute pression jusqu'a 25gpa et a basse temperature jusqu'a 1. 5k. Dans les monopnictures de np, la mise en ordre antiferromagnetique triple k (3k) produit une forte augmentation de la resistivite a pression ambiante. De plus, dans npsb et npbi, la resistivite montre un comportement semi-conducteur a basse temperature. Sous pression et dans les trois composes, la temperature d'ordre t#o#r#d diminue et la resistance chute discontinuement a basse temperature. La signature de l'ordre 3k est supprimee dans npas et npsb. L'anomalie kondo de la resistance disparait sous pression. La chute de resistance sous pression est interpretee par une modification de la surface de fermi qui coincide probablement avec la suppression de la phase 3k. Nous suggerons que la diminution de t#o#r#d est due a un changement de la surface de fermi en plus d'une legere delocalisation des electrons 5f. Dans npga#3, t#o#r#d augmente de 65k a 1bar jusqu'a 194k a 25gpa. L'anomalie kondo en resistivite est supprimee au dessus de 4gpa. Nos resultats suggerent que deux phases magnetiques sont presentes sous pression. Le comportement sous pression du moment ordonne et de la temperature d'ordre indique une faible delocalisation des electrons 5f. L'augmentation de la temperature d'ordre est expliquee par le renforcement des interactions d'echange indirectes entre ions magnetiques. Parallelement, nous avons developpe un prototype d'un refrigerateur #3he avec pompe a absorbtion par des charbons actifs. Il est destine a mesurer la resistance electrique de composes d'actinides en dessous de 1. 5k et sous haute pression. Le prototype permet d'atteindre des temperatures minimales de 650mk dans les conditions de mesures sous pression et 330mk dans les conditions de mesures a 1bar. Nous avons mesure avec succes la resistance electrique de np#4ru#7ge#6 jusqu'a 350mk et a pression ambiante
APA, Harvard, Vancouver, ISO, and other styles
3

Kaye, Edward David. "Correlating Neuropsychiatric Symptoms with Regional Beta-Amyloid Load in the Alzheimer’s Disease Brain Using [11C]SB-13 Positron Emission Tomography." Thesis, 2010. http://hdl.handle.net/1807/25722.

Full text
Abstract:
Correlations between neuropsychiatric symptoms and beta-amyloid (Aβ) burden in specific brain regions in living Alzheimer’s disease (AD) patients remain to be elucidated. Ten mild AD patients underwent MR and [11C]SB-13 PET imaging. Neuropsychiatric symptoms were quantified with the Neuropsychiatric Inventory (NPI). NPI-depression/dysphoria, -apathy, -agitation/aggression, -anxiety, and -appetite/eating disorders scores were hypothesized to correlate with Aβ burden in particular brain regions. Pearson’s correlation coefficient revealed that depression/dysphoria scores positively correlated (p<0.05) with standardized uptake values (SUVs) from left medial temporal lobe (r=0.67), and agitation/aggression correlated with SUVs from bilateral anterior cingulate (right, r=0.71; left, r=0.78), temporal (right, r=0.71; left, r=0.75), parietal (right, r=0.77; left, r=0.81), and dorsolateral prefrontal cortex (right, r=0.74; left, r=0.73). However, NPI scores did not significantly correlate with better estimates of Aβ burden that use the cerebellum as reference region. Overall, our results confirm the lack of association between Aβ burden and neuropsychiatric symptoms reported in autopsy studies.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "SB-13"

1

California. Legislature. Assembly. Committee on Judiciary. Public hearing on family law issues relating to SB 1296, SB 1306, and SB 1341 (and SB 13): Monday, December 14, 1987, 9:15 a.m. to 4:00 p.m., State Capitol, Room 126, Sacramento, California. Sacramento, CA: The Committee, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

California. Legislature. Senate. Committee on Insurance, Claims, and Corporations. SB 145 (McCorquodale): Automotive parts warranties : November 13, 1987, Desert Princess Hotel, Palm Springs, California. Sacramento, CA: The Committee, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Bennett. Paper Hat Pack (13 for 12) Sb. Collins & Brown, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "SB-13"

1

Schulz, Stephan. "Synthesis, Structure and Reactivity of Group 13/15 Compounds Containing the Heavier Elements of Group 15, Sb and Bi." In Group 13 Chemistry I, 117–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-47808-6_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Singh, Amit Kumar, Amit Rathi, Md Riyaj, and P. A. Alvi. "Wavefunctions and Optical Gain in $$ \text{In}_{0.3} {\text{Ga}}_{0.7} {\text{As}}/{\text{GaAs}}_{0.4} {\text{Sb}}_{0.6} $$In0.3Ga0.7As/GaAs0.4Sb0.6 Type-II Double Quantum Well Nanoheterostructure Under External Uniaxial Strain." In Engineering Vibration, Communication and Information Processing, 143–51. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1642-5_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Taber, Douglass F. "The Kan Synthesis of the Streptomyces Alkaloid SB-203207." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0092.

Full text
Abstract:
The alkaloid SB-203207 3, isolated from a Streptomyces species by a SmithKline Beecham group, was shown to inhibit isoleucyl tRNA synthetase with an IC50 of less than 2 nM. Toshiyuki Kan of the University of Shizuoka envisioned (Org. Lett. 2014, 16, 1646) that the carbocyclic core of 3 could be assembled by the Rh-mediated cycli­zation of 1 to 2. The authors had already demonstrated (Org. Lett. 2008, 10, 169) the cyclization of 1 to 2. For the assembly of 3, they needed to scale up the preparation of 1. To this end, they required the mandelamide 5 and the aldehyde 8. To prepare 5, they devised a new preparation of diazoacetates, condensation with bromoacetyl bromide followed by exposure to the bis sulfonamide. The aldehyde 8 was prepared from the acid 6 (commercial, or Org. Synth. 2004, Coll. Vol. 10, 228). The preparation of the third component of 3, the acid 9, had been described earlier by Banwell and Easton (Bioorg. Med. Chem. 2003, 11, 2687). The cyclization of 1 proceeded smoothly with 0.1% loading of the Rh catalyst, to give 2 in 72% de (85:15 ratio of enantiomers of the carbocyclic core). The enantio­meric excess could be upgraded by recrystallization of a later intermediate. The ester 2 was exchanged with allyl alcohol to give 10, presumably with recovery of the liberated chiral auxiliary 4. Formaldehyde added to the β-keto ester 10 from the more open face. Hydride addition from that same face then delivered the diol 11. The allyl ester was removed, and the free acid was activated with SOCl2 then condensed with ammonia to give the primary amide. Ozonolysis followed by acidic methanol led to cyclization onto the amide, allowing ready differentiation of the two ends of the alkene. Reduction com­pleted the preparation of the lactam 12. The nitrogen was sulfonylated, then the activated lactam was opened with assis­tance from the liberated primary alcohol. After acetal hydrolysis, the sulfonamide added to the aldehyde to give, after dehydration, the enamide 13. Inversion of the carboxyl converted the hydroxy acid to the urethane, that was formylated with the modified Vilsmeier reagent. Protection and deprotection followed by methylation then delivered the vinylogous amide 14.
APA, Harvard, Vancouver, ISO, and other styles
4

Biborski, Marcin, and Mateusz Biborski. "Badania składu chemicznego oraz technologia wykonania wybranych zabytków ze stopu miedzi." In Ocalone Dziedzictwo Archeologiczne, 121–34. Wydawnictwo Profil-Archeo; Muzeum im. Jacka Malczewskiego w Radomiu, 2020. http://dx.doi.org/10.33547/oda-sah.10.zn.11.

Full text
Abstract:
41 artefacts recovered from the Przeworsk culture cemetery in Żelazna Nowa were originally selected for archaeometric examination. Of that number, 24 brooches and 13 various objects made from copper alloy were analysed. The choice was dictated by their good state of preservation, allowing for reliable results. The method applied was non-destructive energy dispersive X-ray fluorescence analysis (ED-XRF), using an X-ray spectrometer operating at 45kV. In addition, selected artefacts were examined using a scanning electron microscope. The results of chemical analyses are presented in Tables 11.1 and 11.2, with weight percent values given, while the raw material and technical data are shown in Tables 11.3 and 11.4. The results indicate that among the 24 brooches and their fragments analysed, 16 were made of brass, including eight made of multi-component tin brass, one made of tinlead brass, and one made of tin-silver brass. Among the remaining eight brooches one was made of iron and seven were bronze pieces, including two made of multi-component zinc bronze, one of lead bronze, and one of silver bronze (inv. no. CCXXIII/15). The addition of lead had significant technological impact on the alloys used for creating the brooches. Even in small quantities, even far below 1%, this element improves the castability and workability of the metal. Zinc, in turn, is added to bronzes as a reducing agent, making the alloy self-reducible. This also makes it possible to reduce the contents of phosphorus. Moreover, the addition of zinc to bronze significantly lowers its melting temperature. The remaining alloying additions (apart from elements recorded in trace amounts, like Ag, Sb, and Fe, which naturally occurred in copper alloys) have had no significant impact on the quality of the raw material used for manufacturing the artefacts under discussion. The presence of silver (a few percent) recorded in two brooches (inv. nos XXXIII/15 and CCXXIII/15) indicates they may have originally been silver-plated. Two brooches (inv. nos XCIX/15 and 21/08) were inlaid with silver wire. The first one was cast from tin bronze and adorned with a filigree wire (Fig. 11.1) in the type of a simple braid, made of highquality (92.99%) silver (Fig. 11.2). The silver wire with a diameter of merely 338.38 μm (Fig. 11.3) was produced by drawing through a die, and it was later braided and hammered into grooves previously prepared on the two crests of the brooch. The second brooch, made of iron (inv. no. 21/08), was adorned with silver of a similarly high quality (91.85%). In this case, however, the exposure to fire resulted in complete destruction of the decoration: its traces only remained in a few places in the form of tiny melt-down droplets. It is worth noting the similar standard of silver used as inlays in both brooches. This seems to corroborate the assumption that the standards of silver used in trade were generally similar over larger areas. It is worth noting two brooches which, despite representing different types, are made of chemically very similar alloys (Tables 11.1–3). One (inv. no. CCIX/15) belongs to type A.III.58, while another represents group A.IV (inv. no. CIX/17). This may indicate that both were manufactured in the same workshop. Except for one brooch forged from iron, all the remaining brooches were cast using the lost wax technique (Table 11.3). Cast pieces also prevail among other artefacts, especially those having profiled surfaces (Table 11.4). Examples include a fragment of a J.7 shield grip (inv. no. XVI/15), a belt finial of type “O” (inv. no. CCXLIX/15), and fragments of bracelets with round terminals (inv. nos XIII/15 and LXXXVI/17). The performed raw material analysis of copper alloy artefacts from Żelazna Nowa produced interesting findings. The results confirm that during the Older Roman Period brass artefacts prevailed among small metal dress items in the Przeworsk culture. Among the 37 copper alloy artefacts analysed, as many as 27 (75%) are brass objects. A similar picture was observed in other sites, with a prevalence of brass artefacts recorded in cemeteries such as those in Karczyn/Witowy, Sadłów, and Szarbia.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "SB-13"

1

Sukhikh, S. A. "EXPERIENCE OF LINGUOPSYCHOLOGICAL APPROACH IN PRACTICE JUDICIAL EXPERTISE." In Психология безопасности и психологическая безопасность: проблемы взаимодействия теоретиков и практиков в экспертно-психологических исследованиях. ФГБОУ ВО «СГУ», 2018. http://dx.doi.org/10.18411/sb-2018-13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kang, Dong-Gu, Joo-Sung Kim, and Seung-Hoon Ahn. "MARS-KS Calculations for ATLAS 6-Inch Cold Leg Break (SBLOCA) Test." In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-54211.

Full text
Abstract:
An integral effect test on the SBLOCA (Small-Break Loss of Coolant Accident) aiming at 6-inch cold leg bottom break, SB-CL-09, was conducted with the ATLAS on November, 13, 2009 by KAERI. In this study, the calculations using MARS-KS V1.2 code were conducted for 6-inch cold leg break test of ATLAS (SB-CL-09) to assess MARS-KS code capability to simulate the transient thermal-hydraulic behavior for SBLOCA. The steady state was determined by conducting a null transient calculation and the errors between the calculated and measured values are acceptable for almost primary/secondary system parameters. The sequence of events except the location of loop seal clearing (LSC) and SIT injection time was predicted relatively well. The predicted pressurizer pressure agrees relatively well with the experimental data and the predicted break flow and mass are in good agreement with experiment. In MARS-KS calculation, the decrease of core collapsed water level is predicted well in blowdown phase, but just before LSC, water level is higher than experiment. However, the sudden decrease and increase of water level at the LSC are predicted qualitatively. After LSC, there is another water level dip at SIT injection time which is not in experiment. It is considered that this phenomenon is caused by rapid depressurization of downcomer due to significant condensation rate of vapor in downcomer when SIT water flows in it. For the downcomer water level, before the SIT injection time, water level is predicted well, however, it is significantly over-predicted at SIT injection time after SIT water flows in downcomer. Predicted cladding temperature generally agrees well with the experiment, while there is peak at SIT injection time in calculation which is not in experiment. The loop seals of 1A, 2B intermediate leg are cleared around 400 seconds in experiment, while only that of 1A is cleared in MARS-KS calculation at the same time. In conclusions, MARS-KS code has good capabilities to simulate cold leg break SBLOCA, however, there are some discrepancies in quantitatively predicting the steam generator secondary pressure, core collapsed liquid level, downcomer liquid level, and so on. Therefore, MARS-KS code including interfacial condensation model needs to be improved to predict more accurate results.
APA, Harvard, Vancouver, ISO, and other styles
3

Greene, Andrew, Shailesh Madisetti, Michael Yakimov, Vadim Tokranov, and Serge Oktyabrsky. "Development of III-Sb Technology for p-Channel MOSFETs." In Selected Papers from the Workshop on Frontiers in Electronics 2013 (WOFE-13). WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814656917_0002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Momeni, Amir Farid, Robert J. Peterman, B. Terry Beck, and Chih-Hang John Wu. "Effect of Strand Indentation Types on the Development Length and Flexural Capacity of Concrete Railroad Ties Made With Different Prestressing Strands." In 2019 Joint Rail Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/jrc2019-1233.

Full text
Abstract:
Pretensioned concrete prisms made with five different prestressing strand types (four 7-wire strands and one 3-wire strand) were load tested to failure to understand the effect of strand indentation types on the development length and bonding performance of these different reinforcements. The prestressing strands were denoted SA, SB, SD, SE and SF. SA was a smooth strand while the other four were indented strands. All strands utilized in manufacturing ofprisms had diameter of 3/8″ (9.52 mm). Among all types of strands, SF was the only 3-wire strand and the remaining strands were all 7-wire strands. For all types of strands, four straight strands were embedded into each concrete prism, which had a 5.5″ (139.7 mm) × 5.5″ (139.7 mm) square cross section. The strands were tensioned to 75 percent of ultimate tensile strength of strands and gradually de-tensioned when the concrete compressive strength reached 4500 psi (31.03 Mpa). A consistent concrete mixture with type III cement, water-cement ratio of 0.32 and a 6-in. slump was used for all prisms. Prisms were load tested in 3-point-bending at different embedment lengths to obtain estimations of the development length of each type of strand. Two out of three identical 69-in.-long (175.26 cm) prisms were load tested at one end and one was tested at both ends for each reinforcement type evaluated. First prisms were tested at 28-in. (71.12 cm) from the end, while second prisms were tested at 20-in. (33.02 cm) from the end. Third prisms were loaded at 16.5-in. (41.9 cm) from one end and 13-in. (33.02 cm) from the other end. Thus, a total of 20 load tests (5 strand types × 4 tests each) were conducted in this study. During each test, a concentrated load with the rate of 900 lb/min (4003 N/min) was applied at mid-span until failure occurred. Values of load, mid-span deflection, and strand endslip were continuously monitored and recorded during each test. Plots of load-vs-deflection were then compared for prisms with each strand type and span, and the maximum sustained moment was also calculated for each test. The load tests revealed that there is a large difference in the development length of the strands based on their indentation type.
APA, Harvard, Vancouver, ISO, and other styles
5

Matsuishi, K., T. Anzaki, S. Onari, and T. Arai. "Far Infrared Absorption Spectra Of Amorphous (As 2 S 3 )- (Sb 2 S 3 ) Semiconductors And The Spatial Charge Fluctuation." In 13 Intl Conf on Infrared and Millimeter Waves, edited by Richard J. Temkin. SPIE, 1988. http://dx.doi.org/10.1117/12.978508.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography