73 research outputs found
Giovanni Antonio Viscardi's Mariahilfkirche At Freystadt: An Analysis Of Its Forms, Sources, And Significance.
No full textPhDFine ArtsUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/186223/2/7104630.pd
Accuracy of vocalization discrimination based on the spike activities of an ensemble of neurons in AAF and PAF.
No full text<p>The results of 3, 5, 10, 25 and 50 randomly selected neurons are plotted as a function of the bin size in different panels. Circles (AAF) and triangles (PAF) are the mean values of 50 neuron selections and the dots represent the SD. To facilitate comparison, the functions of PAF are shifted slightly to the right. Asterisk indicates that the difference of mean values between AAF and PAF neurons is statistically significant (p<0.05, t-test).</p
Einfluss des "Melkens" von Thoraxdrainagen nach Thorakotomien auf die postoperative Morbidität: Ergebnisse einer prospektiv randomisierten Studie
No full textSmall Satellite Tools for High-Resolution Infrared Fire Monitoring
No full textSpace-borne infrared remote sensing specifically for the detection and characterization of fires has a long history in the DLR Institute of Optical Sensor Systems. In the year 2001, the first DLR experimental satellite, Bi-spectral Infrared Detection (BIRD), was launched after an intensive test period with cooled IR sensor systems on airborne systems. The main basis for the development of the FireBIRD mission with the two satellites, Technology Erprobungsträger No 1 (TET-1) and Bi-spectral-Infrared Optical System (BIROS), was the already space-proven sensor and satellite technology with successfully tested algorithms for fire detection and quantification in the form of the so-called fire radiation power (FRP). This paper summarizes the development principles for the IR sensor system of FireBIRD and the most critical design elements of the TET-1 and BIROS satellites, especially concerning the attitude control system—all very essential tools for high-resolution infrared fire monitoring. Key innovative tools necessary to increase the agility of small IR satellites are discusse
Growth, reproduction, age structure and feeding habits of white whales (Delphinapterus leucas) in West Greenland waters
No full textReproductive organs, mandibular teeth, stomach contents and body measurements including total mass from white whales (Delphinapterus leucas) taken by Inuit hunters in West Greenland during 1985-1992 were analysed. Both sexes of white whales from West Greenland attain a greater length at physical maturity than do white whales from Alaska, Hudson Bay, northern Quebec, the White Sea and the Kara Sea. Male white whales attain sexual maturity at 6-7 years. Size of testes and presence of spermatozoa suggest that mating takes place in May or perhaps later.
Female white whales apparently become sexually mature at 4 to 7 years of age, but the negative bias of age estimates from whales whose teeth lack the neonatal line confounded our effort to estimate the age at sexual maturity. Gestation lasts at least 330 days, with implantation in May- June, and calves are likely to be born in April-May
Implementasi Man In the Middle Attack pada Algoritme Blake2s Berbasis LoRa
No full textLong Range (LoRa) lebih sering digunakan untuk pengiriman data menggunakan
spektrum gelombang radio yang memiliki kemampuan dengan transmisi
jangkauan jarak lebih dari 2 km serta konsumsi daya yang rendah. Namun tidak
adanya fitur keamanan terhadap data yang diamankan mengakibatkan celah
keamanan yang dapat dimanfaatkan oleh pihak yang tidak berwenang dengan
mengubah data sehingga integritasnya tidak terjamin. Salah satu metode
keamanan yang digunakan untuk integritas data yaitu algoritme SHA-256. Namun
pada algoritme SHA-256 telah ditemukan serangan yang membuatnya tidak aman
untuk digunakan. Untuk mengatasi masalah tersebut, algoritme BLAKE2S dipilih
sebagai alternatif untuk menjamin integritas data. Algoritme BLAKE2S merupakan
algoritme yang telah terbukti memiliki tingkat keamanan yang lebih baik. Dari hasil
penelitian, algoritme BLAKE2S telah berhasil diimplementasikan sebagai
keamanan integritas data pada LoRa. Data yang diamankan diubah menjadi
message digest melalui proses hashing. Hasil divalidasi menggunakan pengujian
test vector dengan cara mencocokkan masukan dan message digest yang ada pada
jurnal dan bernilai valid. Keamanan data dilanjutkan dengan pengujian serangan
aktif menggunakan teknik Man In The Middle Attack dan berhasil dilakukan karena
pada saat penyerang melakukan perubahan data telah dilakukan pengecekan
pada gateway sebagai penerima dan menghasilkan data yang tidak valid
Source identification and evaluation of surface water quality using factor and discriminant analysis
No full textThis study utilizes factor and discriminant analysis to identify the parameter source and evaluate the quality of water from ex-mining ponds and lakes in Selangor. Factor analysis (FA) which explain 83.77% of the surface water quality variation shows that As and Cd that mostly originated from mining activity, and pH are the parameters responsible for the major variation in the surface water quality and were strongly associated with varimax factor 1 (VF1), while Pb, Mn and DO were associated with varimax factor 2 (VF2). The Discriminant analysis (DA) reveals that As, Cd, Mn, Fe and pH are the parameters that significantly differentiate ex-mining ponds from the lake (p < 0.05 and F - ratio >> 1), and supported by the correlation study. The elevated metal concentrations in ex-mining ponds compared to lakes were plausibly associated with the past mining operation, thereby indicating heavy metal dominance in ex-mining ponds. DO and BOD are associated with the anthropogenic input from residential sources. Findings of this study therefore show the need and usefulness of multivariate statistical analysis to get information on the quality status of surface water.Keywords: Discriminant analysis, Ex-mining pond, Factor analysis, Lake, Water quality
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