Accommodating repair actions into gas turbine prognostics

Elements of gas turbine degradation, such as compressor fouling, are recoverable through maintenance actions like compressor washing. These actions increase the usable engine life and optimise the performance of the gas turbine. However, these maintenance actions are performed by a separate organization to those undertaking fleet management operations, leading to significant uncertainty in the maintenance state of the asset. The uncertainty surrounding maintenance actions impacts prognostic efficacy. In this paper, we adopt Bayesian on-line change point detection to detect the compressor washing events. Then, the event detection information is used as an input to a prognostic algorithm, advising an update to the estimation of remaining useful life. To illustrate the capability of the approach, we demonstrated our on-line Bayesian change detection algorithms on synthetic and real aircraft engine service data, in order to identify the compressor washing events for a gas turbine and thus provide demonstrably improved prognosis

Place of Worship as Capital Space: The Relationship between Masjid Raya Bandung and Shopping Centers

The mosque is generally known as a place of worship for Muslims.  Besides being seen as a physical and spiritual space, a mosque is also a cultural space.  The culture is manifested through the everyday life of people who are connected to the mosque.  The economy is part of the everyday life that will connect the mosque with other economic sectors such as shopping centers.  This research will show the relationship between the mosque and shopping centers that contribute to the development or production of capital space in the city.  Masjid Raya Bandung (MRB) is the focus of research to uncover the formation of capital space and its relationship with shopping centers around the MRB.  The method used is observation and in-depth interviews with people visiting the mosque and shopping centers.  The theory used to look at this case is the production of space from Henri Lefebvre.  The results showed that the mosque was not only seen as a place of worship, but also a capital space.  The formation of this capital space can be seen from the relation of MRB with the shopping places around it and the relations of the activities of visitors who presuppose these two spaces: the mosque and the shopping centers.  That way, the mosque is used as a means of perpetuating the economic process or consumerism in the surrounding spaces, including in shopping centers

Validity of Osteocalcin and Alkaline Phosphatase Biomarkers in Postmenopausal Women With Low Bone Mineral Density

Background: Bone mineral density (BMD) can predict osteoporotic fractures which are major public health problem associated with increased morbidity, mortality, and health care cost amongst elderly. Objective: To assess validity of osteocalcin and alkaline phosphatase (ALP) biomarkers in postmenopausal women with low bone mineral density (BMD) Patients and Methods: This cross sectional study was conducted on postmenopausal women. BMD was measured by Dual energy x-ray absorptiometry (DEXA). Salivary and serum of both osteocalcin and alkaline phosphatase were measured from all postmenopausal women. Results: Of a total 72 postmenopausal women, 48 had low BMD and 24 of normal BMD. Mean salivary and serum osteocalcin and mean serum alkaline phosphatase (ALP) levels were significantly higher in postmenopausal women with low BMD than those of normal BMD. Mean salivary ALP level was numerically more in women with low BMD than those with normal BMD but statistically not significant. Salivary and serum osteocalcin and ALP biomarkers score at cut off >1 had accuracy of 80.55 % to diagnose postmenopausal women with low BMD with positive predictive value of 88.64 %, sensitivity was 81.25 %, and specificity 79.17%. Conclusions: Osteocalcin and ALP were valid biomarkers to diagnose postmenopausal women with low BMD. Biomarker score>1 had high accuracy and sensitivity to diagnose low BMD. This may suggest a new promising measure to early diagnose patients at high risk of low BMD and subsequently giving early appropriate treatment. Key words: Osteocalcin, Alkaline phosphatase, bone mineral density, periodontal statu

Single nucleotide polymorphisms from Theobroma cacao expressed sequence tags associated with witches' broom disease in cacao

In order to increase the efficiency of cacao tree resistance to witches¿ broom disease, which is caused by Moniliophthora perniciosa (Tricholomataceae), we looked for molecular markers that could help in the selection of resistant cacao genotypes. Among the different markers useful for developing marker-assisted selection, single nucleotide polymorphisms (SNPs) constitute the most common type of sequence difference between alleles and can be easily detected by in silico analysis from expressed sequence tag libraries. We report the first detection and analysis of SNPs from cacao-M. perniciosa interaction expressed sequence tags, using bioinformatics. Selection based on analysis of these SNPs should be useful for developing cacao varieties resistant to this devastating disease. (Résumé d'auteur

Phenotypic and Numerical Characterization and Detection of the Genetic Relationship of a Number Ants Species of Hymenoptera: Formicidae in Iraq

The study aimed at the phenotypic characterization of a number of species of real ants, Hymenoptera: formicidae, in some governorates of central and northern Iraq, as well as revealing similarities and genetic differences depending on the phenotypic characteristics of 16 samples of real ants. The samples were collected from the governorates (Salah al-Din, Kirkuk, Sulaymaniyah, Erbil) using Collection kit, ants samples were diagnosed in the Research Center and Natural History Museum \ University of Baghdad, and the study was conducted in the laboratories of the College of Science \ University of Tikrit in the period 12/15/2021 – 5/1/2022. Samples were collected and preserved according to the methods used in preserving insects. A phenotypic study was conducted for (38) phenotypic characteristics of the general shape of the head, thorax, abdomen, legs and wings in detail using a anatomical microscope. Temporary sections were photographed using a digital camera and kept until the results are studied. Numerical classification and phenotypic genetic dimension were conducted based on the results of the studied phenotypic traits. The results showed a clear discrepancy between the species, it was shown from the results of the statistical analysis of the values of the phenotypic genetic dimension, which ranged between (0.230-0.958), where the least genetic dimension was between sample No. 1 (Camponotint xerxes Erbil 1) and No. 8 (Camponotint xerxes Kirkuk 2), as it reached 0.230, and that is It is the highest percentage of similarity between the two samples within the studied species. As for the highest genetic dimension, it was 0.958 between sample 14 (Camponotint xerxes Salah al-Din 1) and samples No. 9 and 10 (9-Messor sp Kirkuk, 10- Messor sp Sulaymaniyah 1). There is no match in the traits studied between these two samples, while the values of the genetic dimension for the rest of the species ranged between those values

Pengaruh Panjang Hari, Asam Indol Asetat, dan Fosfor terhadap Tanaman Kedelai dan Kualitas Benih dalam Penyimpanan

The objective of this study was to investigate the effect of photoperiod, indole acetic acid (IAA), and phosphorus on soybean plant growth and seed quality during storage. The trial was carried out at Sebapo Experimental Station, Jambi, Center for Post Harvest Research and Development, The Ministry of Agriculture and Center for Forest Research and Development, The Ministry of Forestry, Bogor from November 2009 until June 2010. Split-split plot design was used consisted of three factors, i.e. photoperiods (12 and 14 hours 54 minutes) as the main plot, concentrations of IAA (0, 75, and 150 ppm) as subplot, and dosages of phosphorus (0, 60, and 120 kg P2O5 ha-1) as subplot. The result showed that photoperiod, IAA, and phosphorus application had significantly improved production and seed quality. The path analysis showed that the weight of 1,000 seeds affected other variables. The seed protein content has the largest path coefficient compared to other variables. The treatment of mother plant with 14 hours 54 minutes photoperiod combined with IAA of 150 ppm and P2O5 of 120 kg ha-1 resulted in the highest seed quality during 90 days of storage in room temperature

Qualidade potencial dos cafés produzidos na "Região das Matas de Minas".

Em regiões de montanha, como característico na “Região das Matas de Minas”, a cafeicultura é uma atividade que depende de mão de obra, que além de cara está cada vez mais escassa, aumentando os custos de produção da atividade e com isso diminuindo a competitividade dos cafés no mercado mundial. Para que estes cafés produzidos na região se tornem mais competitivos, se faz necessário, o aumento da qualidade final dos mesmos. O café é um produto com aromas e sabores distintos que produz uma das bebidas mais difundidas no mundo, e tem o seu valor de mercado ajustado de acordo com a qualidade final da bebida, a qual pode ser influenciada por muitos fatores, tais como fatores ambientais e variedade da planta. Objetivou-se com este trabalho avaliar os efeitos da encosta da montanha, altitude e variedade de planta sobre os valores médios dos atributos de qualidade potencial dos cafés produzidos na “Região das Matas de Minas” (entre faixas de altitudes pertencentes aos intervalos: EA < 700, 700 < EA ? 825, 825 < EA <950 e EA ? 950 metros acima do nível do mar). Frutos de café (Coffea arabica L.) das variedades Catuaí Vermelho e Catuaí Amarelo foram colhidos manualmente em ponto de maturação cereja. A colheita foi realizada em fazendas localizadas em quatorze dos 63 municípios que compõem a “Região das Matas de Minas”, distribuídos numa pequena parte da região do Vale do Rio Doce e uma maior parte na região da Zona da Mata, num território de Mata Atlântica, a Leste do estado de Minas Gerais

MAPEAMENTO GEOMORFOLÓGICO DO PARQUE ESTADUAL DO IBITIPOCA (MG) E ADJACÊNCIAS

O presente paper tem por objetivo apresentar os resultados do mapeamento geomorfológico do Parque Estadual do Ibipoca (MG) e adjacências. Localizado na Zona da Mata Mineira, entre os municípios de Lima Duarte e Santa Rita do Ibitipoca, a reserva insere-se em área de relevo montanhoso expresso por cristas quartzíticas que estabelecem contato abrupto com morros emoldurados em gnaisses e granitos, delimitando-se contextos contrastantes quanto a formas e processos associados, bem como em relação aos programas de uso da terra a serem implementados