170,506 research outputs found
Sistem Informasi Manajemen Organisasi (SIMAO) Berbasis Web
Get PDFDicky Agita Cahya, 2018. Sistem Informasi Manajemen Organisasi (SIMAO) Berbasis Web. Dalam sebuah organisasi tidaklah luput dari masalah pengarispan data kelembagaan. Pentingnya informasi cepat dan terpusat juga menjadi salah satu kunci dari berjalannya organisasi. Setiap organisasi membutuhkan suatu perencanaan, pemantauan dan pengevaluasian dari setiap kegiatan yang dilakukan. Keseluruhannya dikemas dalam sebuah manajemen yang melakukan koordinasi semua sumber daya melalui proses perencanaan, pengorganisasian, penetapan tenaga kerja, pengarahan dan pengawasan untuk mencapai tujuan yang telah ditetapkan terlebih dahulu. Sistem Informasi Manajemen Organisasi (SIMAO) Berbasis Web merupakan sistem informasi yang menyediakan layanan manajemen organisasi yang menjadi kunci dalam keberjalanan suatu organisasi. Sistem Informasi Manajemen Organisasi (SIMAO) Berbasis Web tidak dikhususkan untuk sebuah organisasi tertentu saja melainkan dapat digunakan untuk organisasi manapun karena didesain universal. Sistem informasi ini dibuat menggunakan bahasa pemrograman PHP dan Framework CodeIgniter. Hasil akhir dari tugas akhir ini adalah Sistem Informasi Manajemen Organisasi (SIMAO) Berbasis Web yang dapat digunakan sebagai pemonitoringan keberjalanan organisasi dalam sebuah periode kepengurusan
Hydrogeochemistry, Geothermometry, and Genesis of the Hot Springs in the Simao Basin in Southwestern China
No full textIn the Simao Basin in southwest China widely occur red beds of poor permeability. Nevertheless, more than 100 springs exist in the basin, some of which are hot springs with varying temperature. Hot springs contain abundant information on hydrogeochemical processes and groundwater circulation. In this study, hydrochemical and isotopic analyses and mixed models are used to examine the sources of recharge, heat, and solutes of the hot springs to better understand the subsurface processes and formation mechanisms of different hot springs in the basin. Three types of springs are found in the Simao Basin: springs of HCO3-Na type occur in the metamorphic rocks, springs of HCO3-Ca(Mg) and Cl-HCO3-Na-Ca types in the carbonate rocks, and springs of Cl(SO4)-SO4(Cl)-HCO3-Na(Ca) type in the red beds. Data of δ2H and δ18O indicate that the hot springs in the Simao Basin are meteoric in origin. Incongruent dissolution is the dominant process affecting the chemical compositions of the spring waters. The hydrochemical constituents of the hot springs in the metamorphic rocks, carbonate rocks, and red beds are influenced by the weathering of albite and the dissolution of carbonate, gypsum, anhydrite, and halite. The geothermal waters are mixed with shallow cold waters in their ascending processes, and the mixing ratios of cold water range from 58% to 94%. Due to the effect of mixing, the reservoir temperatures (51°C-127°C) calculated with the quartz geothermometer are regarded as the minimum reservoir temperatures. More reliable reservoir temperatures (91°C-132°C) are estimated with the fixed-Al method. The following mechanisms contribute to the formation of hot springs in the Simao Basin: the groundwater receives recharge from infiltration of precipitation and undergoes deep circulation, during which groundwater is heated by heat flow and incongruently dissolves the subsurface minerals and emerges in the form of hot springs along the permeable fracture or fault zones
Laboratórios Abertos 2018
Get PDFThe Open Labs 2018 book is a collection of lectures and experiments that were made available to secondary and elementary schools that visited the Chemical Engineering Department of the Instituto Superior Técnico of the University of Lisbon during the week of February 5 to 9 2018.
This initiative is part of the Science and Technology promotion promoted by the University for young people in the areas of Chemistry, Chemical Engineering and Materials Engineering.
It aims to disseminate the importance of these matters in the construction of a more just, equalitarian and inclusive society, based on scientific knowledge that allows the development of a sustainable world in the future that is wanted for all.
The Open Laboratories 2018 received about 2100 students and 200 teachers from secondary and basic education to participate in three different types of actions, depending on the schooling of the visitors: Open Laboratories for the students of the secondary education, the Open Labs Junior for the 3rd and 2nd cycle of basic education and the Kids Open Labs for 1st cycle students. They participated in a series of lectures, conversations around a film and interactive experiences. These activities were facilitated by IST Teachers, Non-Teachers and Students.
The 2018 edition of the Open Labs of the Department of Chemical Engineering of the Technician took place in the amphitheaters of the South Tower and in the laboratories of the Chemistry Pavilion at the Instituto Superior Técnico.Fundação para a Ciência e a Tecnologia (FCT), Portugal (Project UID/QUI/00100/2013)
Table1_Hydrogeochemistry of Hot Springs and the 2018 Mojiang M 5.9 Earthquake-Related Chemical Changes in the Simao Basin, China.docx
No full textThe Simao Basin is characterized by strong tectonic activity and frequent seismicity. This study investigated the hydrochemical characteristics of 21 thermal springs in the Simao Basin from 2018 to 2020. In this study period, the 2018 Mojiang M5.9 earthquake caused several hydrochemical changes. The results indicate that the Simao Basin contained saline spring waters, HCO3−-rich spring waters, and SO42−-rich spring waters. In the study area, the water chemistry types were controlled by stratum lithology. Saline springs flowed through red beds and dissolved large amounts of halite, which is a rich source of Cl−and Na+ ions. In the hot spring waters, Ca2+ (Mg2+) and HCO3− were mainly derived from the dissolution of carbonate minerals, gypsum, and anhydrite of Triassic rocks. The higher SO42- content in the hot spring waters was caused by the pyrite present in Ailaoshan metamorphic rocks. The reservoir temperatures (121–289 °C) in the Simao Basin were estimated by the silica-enthalpy mixing model equation and the silica-enthalpy diagram. The hot springs had higher reservoir temperatures (>250 °C) and were mainly located at the edges of the basin. Metamorphic rocks exposed in the region had low permeabilities and these springs was close to nearby deep faults that provided deep heat. In most springs, the concentrations of Ca2+ and HCO3− ions increased obviously before the 2018 Mojiang M5.9 earthquake; however, the concentrations of these ions decreased after the earthquake. The hydrogeochemical variations might be attributed to the vigorous water-rock interactions and the mixing of secondary fluids. The entry of cold shallow groundwater caused changes in the reservoir temperatures of some spring samples.</p
A vortex panel model for the simulation of the wake flow past a vertical axis wind turbine in dynamic stall
No full textA 2D vortex panel model with a viscous boundary layer formulation has been developed for the numerical simulation of a vertical axis wind turbine (VAWT), including the operation in dynamic stall. The model uses the ‘double wake’ concept to reproduce the main features of the unsteady separated flow, including the formation and shedding of strong vortical structures and the wake–blade interaction. The potential flow equations are solved together with the integral boundary layer equations by using a semi-inverse iterative algorithm. A new criterion for the reattachment of the boundary layer during the downstroke of a dynamically stalled aerofoil is implemented. The model has been validated against experimental data of steady aerofoils and pitching aerofoils in dynamic stall at high and low Reynolds numbers (Re = 1.5 × 10^6 and Re = 5 × 10^4). For the low Reynolds number case, time-resolved 2D particle image velocimetry (PIV) measurements have been performed on a pitching NACA 0012 aerofoil in dynamic stall. The PIV vorticity fields past the oscillating aerofoil are used to test the model capability of capturing the formation, growth and release of the strong leading edge vortex that characterizes the dynamic stall. Furthermore, the forces extracted from the PIV velocity fields are compared with the predicted ones for a quantitative validation of the model. Finally, the model is applied to the computation of the wake flow past a VAWT in dynamic stall; the predicted vorticity fields and forces are in good agreement with phase-locked PIV data and CFD-DES available in the literature
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Correlation of Triassic stratigraphy between the Simao and Lampang-Phrae Basins: implications for the tectonopaleogeography of Southeast Asia
No full textBased on our extensive fieldwork in southwestern Yunnan and northern Thailand, followed by detailed stratigraphic and paleontological studies, we propose that the Triassic Simao Basin in Yunnan can be correlated with the Triassic Lampang-Phrae Basin in Thailand. Strata equivalent to those in the southern Lancangjiang sub-basin have not been identified in northern Thailand. We consider that during the Triassic the Simao and the Lampang-Phrae Basins belonged to the same tectonopaleogeographic unit. The orogenic belt to the east of this unit includes the Nan-Uttaradit and Ailaoshan sutures. The 'Shan-Thai Block' in northern Thailand, can be divided from east to west into the Sukhothai, the Inthanon, and the Shan terranes. According to tectonopaleogeographic correlation, our results support the idea that the Sukhothai Terrane, including the Lampang-Phrae Basin, belongs to the Cathaysian domain and not to Gondwana domain, and that the geosuture corresponding to the Changning-Menglian Suture in Yunnan must lie to the west of the Sukhothai Terrane in Thailand. © 2005 Elsevier Ltd. All rights reserved
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Permian brachiopods from the Baoshan and Simao Blocks in Western Yunnan, China
No full textThis paper describes and illustrates four Permian brachiopod assemblages (Assemblages A–D) from western Yunnan, southwest China. Assemblage A occurs in the basal part of the Yongde Formation in the Xiaoxinzhai section in the southern Baoshan Block and is assignable to the latest Artinskian or earliest Kungurian. Assemblage B occurs about 50 m stratigraphically above Assemblage A in the same section, and is of Chihsian (Kungurian–Roadian) age. Assemblage C was collected from the Yongde Formation in the Anpaitian section in the southern Baoshan Block and is most likely Roadian to Wordian in age. Assemblage D came from the Longtan Formation in the Simao Block and is of late Wuchiapingian in age. The brachiopod faunas from the Yongde Formation of the Baoshan Block, as a whole, is dominated by species characteristic of the Cathaysian Province, although some links with Peri-Gondwanan faunas are also evident. In contrast, Assemblage D from the Simao Block is characterised exclusively by taxa of the Cathaysian Province. New taxa described and illustrated are Neochonetes (Huangichonetes) inflatus n. sp. Costatumulus minor n. sp. and Celebetus yunnanensis n. sp.<br
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