The catalogues and mid-infrared environment of Interstellar OH Masers

Data for a number of OH maser lines have been collected from surveys. The posi- tions are compared to recent mid-infrared (MIR) surveys such as Spitzer-GLIMPSE and WISE, restricting the comparison to point sources. The colors and intensities of the IR sources are compared. There are many 18 cm OH masers, but far fewer in lines arising from higher energy levels. We also make a comparison with the 5 cm Class II methanol masers. We have divided the results into 3 subsamples: those associated with OH masers only, those associated with OH masers and Class II methanol masers, and those only associated with Class II methanol masers. There are no obvious dif- ferences in the color-color or color-magnitude results for the GLIMPSE point sources. However, according to the results from the WISE 22 {\mu}m survey, the sources associ- ated with OH masers are brighter than those associated with methanol masers. We interpret the presence of OH and methanol masers mark the locations of regions where stars are forming. The OH masers are located on the borders of sharp features found in the IR. These are referred to as bubbles. If the OH masers mark the positions of protostars, the result provides indirect evidence for triggered star formation caused by the expansion of the bubbles.Comment: 23 pages (11 pages online only), 12 figures, Accepted. Monthly Notices of the Royal Astronomical Society,201

GENERATING TRAINING DATABASES USED IN VECTOR BASED OBJECT RECOGNITION IN HYBRID CLOUD USING PUBLIC PROFILES

Techniques are provided herein for generating a face data set which contains badge identifier photos and photos from social media. The faces are automatically tagged using facial recognition, text recognition, and human relationship mining

Identity Authentication Security Management in Mobile Payment Systems

Mobile payment is a new payment method offering users mobility, reachability, compatibility, and convenience. But mobile payment involves great uncertainty and risk given its electronic and wireless nature. Therefore, biometric authentication has been adopted widely in mobile payment in recent years. However, although technology requirements for secure mobile payment have been met, standards and consistent requirements of user authentication in mobile payment are not available. The flow management of user authentication in mobile payment is still at its early stage. Accordingly, this paper proposes an anonymous authentication and management flow for mobile payment to support secure transaction to prevent the disclosure of users\u27 information and to reduce identity theft. The proposed management flow integrates transaction key generation, encryption and decryption, and matching to process users\u27 personal information and biometric characteristics based on mobile equipment authentication carrier

Similar operation template attack on RSA-CRT as a case study

A template attack, the most powerful side-channel attack methods, usually first builds the leakage profiles from a controlled profiling device, and then uses these profiles to recover the secret of the target device. It is based on the fact that the profiling device shares similar leakage characteristics with the target device. In this study, we focus on the similar operations in a single device and propose a new variant of the template attack, called the similar operation template attack (SOTA). SOTA builds the models on public variables (e.g., input/output) and recovers the values of the secret variables that leak similar to the public variables. SOTA’s advantage is that it can avoid the requirement of an additional profiling device. In this study, the proposed SOTA method is applied to a straightforward RSA-CRT implementation. Because the leakage is (almost) the same in similar operations, we reduce the security of RSA-CRT to a hidden multiplier problem (HMP) over GF(q), which can be solved byte-wise using our proposed heuristic algorithm. The effectiveness of our proposed method is verified as an entire prime recovery procedure in a practical leakage scenario

MULTI-AGV SCHEDULING OPTIMIZATION BASED ON NEURO-ENDOCRINE COORDINATION MECHANISM

Ovaj se završni radi bavi mobilnim robotima koji su pokretani nogama. Rad se sastoji od dvije veće cjeline. Prvi dio rada donosi literaturni pregled mobilnih robota pokretanih nogama te daje njihovu podjelu. Mobilne robote pokretane nogama najčešće dijelimo prema broju nogu, ali i po ostalim fizičkim karakteristikama. U radu se govori o osnovnim prednostima i nedostacima pri konstruiranju i upravljanju ovakvih robota. Većina takvih robota izrađena je po uzoru na neku životinju ili čovjeka, odnosno imitirajući prirodu. Takav pristup proučavanja i preslikavanja životinjskih karakteristika u tehničke sustave naziva se biomimikrija. Biomimikrija je očita i u drugom dijelu rada koji se bavi adaptacijom već postojeće robotske platforme. U drugom dijelu rada se razrađuje prilagodba četveronožnog paukolikog robota za novoodabrano elektroničko sklopovlje. Nakon modeliranja konstrukcije u programskom paketu CATIA, izrađen je prototip na uređaju za brzu izradu prototipova. Posebnost ove platforme jest da se svi aktuatori nalaze unutar samog tijela robota, a ne u nogama. Na taj se način eliminira prekomjerna masa nogu. Svaka od ĉetiri noge se pokreće pomoću polužnog mehanizma koji se sastoji od četiri štapa. Zbog te karakteristike javlja se neuobičajena kinematika robota. Ovakvom konstrukcijom robot postaje izazovna platforma za proučavanje algoritama umjetne inteligencije koji se implemetiraju za ostvarivanje gibanja. Takvi algoritmi daju puno bolje rezultate od sekvencijalnog programiranja kod složenijih robotskih struktura.This final project addresses the issue of legged mobile robots. The paper consists of two major parts. First part of the paper brings literature review of legged mobile robots and classifies them. Legged mobile robots most commonly differ by the number of their legs, but they can be distinguished by many other physical characteristics. The paper tackles elementary advantages and disadvantages when designing and controlling this type of a robot. Most legged mobile robots are made by imitating animals and humans. This approach of implementing knowledge obtained form observing nature into technical systems is called biomimetics. Biomimetics is also obvious in the second part of this paper. The second part of the paper elaborates adaptation of already existing quadruped robotic platform for the new electronic circuitry. After 3D designing the model in the CATIA software, prototype is printed on the rapid prototyping printer. This platform is unique because all the actuators are located in the body of the robot, and none of them is in the robot's leggs. Specifically, each of the four legs is controlled by separete four-bar linkage mechanism. Consequently, robot's mass is reduced, however, complexity of control is increased. This design causes unconventional kinematics, thus providing challenging platform for gait-learning algorithms. These algorithms excel in complicated structures like this, where sequential programming tends to underperform

Volcanic Age and Geochemistry of the Permian Linxi Formation in Northeast China: Implications for the Tectonic Evolution of the Paleo-Asian Ocean

The tectonic evolution of the Paleo-Asian Ocean (PAO) has been well studied, including its gradual narrowing and closure by subduction. However, aspects of the tectonic evolution of the oceanic domain remain unclear, including the exact timing and nature of the closure. The Central Asian Orogenic Belt (CAOB) was formed by the closure of the PAO and, therefore, contains information about the tectonic evolution of the oceanic domain. Here, we report a study of the petrology, geochronology, and geochemistry of the Taohaiyingzi section of the Permian Linxi Formation in Alukhorqin Banner (Northeast China) in the central part of the CAOB. A newly discovered andesitic tuff from the lower part of the Linxi Formation yields a weighted mean 206Pb/238U age of 262.2 ± 1.1 Ma (n = 87), indicating that the lower part of the Linxi Formation of the Taohaiyingzi section was deposited during the late Guadalupian. Provenance weathering indicators show that the sedimentary rocks of the Linxi Formation are of low maturity. Element geochemical characteristics indicate that the Linxi Formation clastic rocks were derived from eroded magmatic rocks that formed in a continental arc setting and were deposited close to the arc in a continental arc basin environment. The active margin setting was generated by the subduction of the paleo-Asian oceanic plate beneath the Xilinhot–Songliao block. The inferred palaeosalinity of the sedimentary environment changed gradually from brackish to fresh water, suggesting the end of oceanic plate subduction during the late Guadalupian, and the closure of the PAO during or after the Lopingian

Platelet-activating factor levels of serum and gingival crevicular fluid in nonsmoking patients with periodontitis and/or coronary heart disease

The purpose of the present study was to investigate systemic and local levels of platelet-activating factor (PAF), a potent proinflammatory mediator implicated in cardiovascular pathophysiology in adult nonsmoking patients with periodontitis with or without coronary heart disease (CHD). Eighty-seven volunteers, 25 periodontitis patients, 19 periodontitis with CHD patients, 19 CHD patients, and 24 healthy controls were included, and periodontal conditions were assessed. Gingival crevicular fluid (GCF) and venous blood were collected, and PAF levels were measured by enzyme-linked immunosorbent assay. PAF levels in serum (303.3 ± 204 pg/ml) and in GCF (26.3 ± 6 pg/μl) of the periodontitis group with CHD, the periodontitis group (serum, 302.4 ± 241 pg/ml and GCF, 26.3 ± 8 pg/μl) and the CHD group (serum, 284.7 ± 192 pg/ml and GCF, 20.8 ± 6 pg/μl) were significantly higher than the healthy control group (serum, 65.4 ± 35 pg/ml and GCF, 7.7 ± 3 pg/μl; p < 0.05). In summary, the present study could demonstrate that in patients with periodontitis, the inflammatory mediator PAF is released into serum at least in the same range as for patients with coronary heart disease. However, no additive effects were seen when both conditions were present

Staphylococcus sciuri Exfoliative Toxin C (ExhC) is a Necrosis-Inducer for Mammalian Cells

Staphylococcus sciuri (S. sciuri) is a rare pathogen in humans, but it can cause a wide array of human infections. Recently a S. sciuri isolate (HBXX06) was reported to cause fatal exudative epidermitis (EE) in piglets and thus considered as a potential zoonotic agent. To investigate the pathogenicity of this bacterium, we cloned exfoliative toxin C (ExhC), a major toxin of the S. sciuri isolate and performed functional analysis of the recombinant ExhC-his (rExhC) protein using in vitro cell cultures and newborn mice as models. We found that rExhC could induce necrosis in multiple cell lines and peritoneal macrophages as well as skin lesions in newborn mice, and that the rExhC-induced necrosis in cells or skin lesions in newborn mice could be completely abolished if amino acids 79-128 of rExhC were deleted or blocked with a monoclonal antibody (3E4), indicating aa 79-128 portion as an essential necrosis-inducing domain. This information contributes to further understandings of the mechanisms underlying S. sciuri infection