bluuebunny/crossref_metadata_2025_split huggingface dataset:
The active control of macro-fiber composite over harmonic vibration of arc-plate structures
Authors: Wei Jianhui , He Weiping , Tu Jianwei , Zhang Jiarui , Luo Wei 
Published: October 2017

This paper offers an actuating equation for MFC arc-plate structures to obtain MFC’s accurate actuating force and actuating bending moment to are-plate structures and increase MFC control effect on vibration. This paper proposes the P1 type MFC arc-plate actuating equation which considers the recombination action of MFC and controlled structure, and arc-plate curvature influence on MFC, obtaining the MFC actuating force and actuating bending moment for arc-plate structures. The vibration control experiment of MFC arc-plate structures is performed, and the deviation between finite element simulation results adopting this equation and the experimental data is less than 8.5 %. The research shows that the P1 type MFC actuating equation deduced in this paper is correct and fully applicative to the MFC vibration control simulation to arc-plate structures.
The operation modal analysis of the structure crack fault diagnosis based on pseudo-successive data
Authors: Xiaoguang Chen , Jinpeng Yang , Xi Sheng , Zhengang An , Bing Li 
Published: October 2017

In order to monitor the crack propagation of the structure in the working state for a long time, an operation modal analysis method based on pseudo-successive data is proposed. The vibration response signals of the cantilever beam under white noise excitation are collected and the modal parameters are extracted by the time-frequency operation modal analysis method based on the complex Morlet wavelet. In comparison with the experimental modal analysis results of hammering method, it is revealed that the error of the time-frequency operation modal analysis method is less than 10 %. By setting cracks of different lengths on the cantilever beam, the vibration response signals are extracted, and the modal parameters are extracted by the operation modal analysis method separately. By comparing those modal parameters above, it is found that the natural frequencies of the second, the fourth and the sixth orders decrease with the increase of the crack depth, and the changes of natural frequencies show the monotonicity. So, it can be used as an index for quantitative identification of crack damage. The pseudo continuous data monitoring signals of crack propagation can be constructed by means of “first discrete, then continuous”. The modal parameters changes of the whole crack propagation can be observed in one time plane by means of the operation modal analysis method. Therefore, the effective monitoring and diagnosis of the structure can be completed in case of excessive data of long-time vibration monitoring signals.
Comparing the performance of suspension system of semi-trailer truck with two air suspension systems
Authors: Le Van Quynh 
Published: October 2017

In order to compare the performance of heavy truck suspension system, a 3D dynamic model with 14 degrees of freedom is developed with the dynamic models of the traditional and new air suspension systems to compare the performance of the air suspension systems for reducing the negative impacts on the road surface when vehicle moves on the different road conditions. Dynamic modes of two different types of the air suspension systems are respectively established and a dynamic load coefficient (DLC) is chosen as objective function which uses Matlab/Simulink software to simulate and determine the values of objective function. The results shown that the performance of the new air suspension system is better than the tradition air suspension for reducing the negative impact on road surface under the different operating conditions of vehicle. Especially, the DLC values of wheels at 3rd axle of vehicle with the new air suspension system are respectively reduced by 6.7 %, 7.0 %, 7.4 %, 7.7 % and 8.5 % in comparison with the traditional air suspension system when vehicle moves on the different pavement conditions a velocity of 20 m/s and fully loaded. In addition, the study results not only can provide a reference for designers but also traffic management to reduce the negative impact on road surface.
Pilot study of oilfield wastewater treatment by micro-flocculation filtration process
Authors: Si Shaoxiong , Yan Zhong , Gong Zhaobo , Liu Pengfei , Zhang Yumin , Xiang Yu 
Published: October 2017

Abstract
In order to meet the latest Environmental Protection Law of China on wastewater discharge standards, this paper studied a pilot-scale micro-flocculation filtration pretreatment process for the treatment of oilfield wastewater. The experiment showed that the removal rate of oil and suspended solids (SS) respectively increased from 91.52% to 95.38% and from 66.42% to 97.19%. After the treatment by the micro-flocculation filtration device, the relevant characteristics of the discharge wastewater satisfied the latest standards continuously. Moreover, the polyaluminum chloride (PAC) dosage was reduced from 200 mg/L to 100 mg/L (50 mg/L in micro-flocculation device and 50 mg/L in the cyclone reactor) at the same time. In order to decrease the degree of scaling in the filter, ceramsite was chosen as the filter material instead of quartz sand that is widely applied in the oilfields. The scaling experiment showed that the HCO3−, Ca2+ and Mg2+ contents in the extract from quartz sand after the scaling study were increased by 38.05, 35.91 and 0.28 mg/L, respectively. Meanwhile, the HCO3−, Ca2+ and Mg2+ contents in the extract from ceramsite were only increased by 13.14, 6.26 and 0.27 mg/L, respectively. Therefore, the ceramsite is not so prone to scaling as compared to quartz sand under identical test conditions, which avoided a hardened and impervious filter after operating for some time. These results suggest that the micro-flocculation filtration with the ceramsite as filter media is a suitable pretreatment process for the oilfield wastewater treatment.
Pooled Analysis of Multiple Crossover Trials To Optimize Individual Therapy Response to Renin-Angiotensin-Aldosterone System Intervention
Authors: Petrykiv Sergei I. , Laverman Gozewijn Dirk , Persson Frederik , Vogt Liffert , Rossing Peter , de Borst Martin H. , Gansevoort Ronald T. , de Zeeuw Dick , Heerspink Hiddo J.L. 
Published: October 2017

Background and objectives
In the treatment of CKD, individual patients show a wide variation in their response to many drugs, including renin-angiotensin-aldosterone system inhibitors (RAASi). To investigate whether therapy resistance to RAASi can be overcome by uptitrating the dose of drug, changing the mode of intervention (with drugs from similar or different classes), or lowering dietary sodium intake, we meta-analyzed individual responses to different modes of interventions.

Design, setting, participants, & measurements
Randomized crossover trials were analyzed to assess correlation of individual responses to RAASi and nonsteroidal anti-inflammatory drugs (NSAIDs; n=395 patients). Included studies compared the antialbuminuric effect of uptitrating the dose of RAASi (n=10 studies) and NSAIDs (n=1), changing within the same class of RAASi (e.g., angiotensin-converting enzyme inhibition to angiotensin receptor blockers; n=5) or NSAIDs (n=1), changing from RAASi to NSAIDs (n=2), and changing from high to low sodium intake (n=5). A two-stage meta-analysis was conducted: Deming regression was conducted in each study to assess correlations in response, and individual study results were then meta-analyzed.

Results
The albuminuria response to one dose of RAASi or NSAIDs positively correlated with the response to a higher dose of the same drug (r=0.72; 95% confidence interval [95% CI], 0.66 to 0.78), changes within the same class of RAASi or NSAIDs (r=0.54; 95% CI, 0.35 to 0.68), changes between RAASi and NSAIDs (r=0.44; 95% CI, 0.16 to 0.66), and changes from high to moderately low salt intake (r=0.36; 95% CI, 0.22 to 0.48). Results were similar when the individual systolic BP and potassium responses were analyzed, and were consistent in patients with and without diabetes.

Conclusions
Individuals who show a poor response to one dose or type of RAASi also show a poor response to higher doses, other types of RAASi or NSAIDs, or a reduction in dietary salt intake. Whether other drugs or drug combinations targeting pathways beyond the renin-angiotensin-aldosterone system and prostaglandins would improve the individual poor response requires further study.
The Impact of Top Management Team Characteristics on the Choice of Earnings Management Strategies: Evidence from China
Authors: Qi Baolei , Lin Jerry W. , Tian Gaoliang , Lewis Hua Christine Xin 
Published: October 2017

SYNOPSIS
Using a sample of Chinese A-share listed firms from 2000 to 2015, we investigate the association between a firm's use of earnings management strategies and the characteristics of its top management team. Our findings suggest that several demographic characteristics (i.e., age, gender, educational level, and financial work experience) of the entire team, as well as of the CEO/CFO and other team members separately, are significantly associated with both accrual-based and real-activities-based earnings management; these, in turn, may affect the quality of the firm's financial reporting. Our results are consistent with the predictions of the upper echelons theory and have implications for various stakeholders in corporate financial reporting, as well as providing insights to those responsible for selecting and developing upper-level executives.
JEL Classifications: M40; M41.
Data Availability: The data used in this paper are derived from public sources.
Banks' Financial Reporting Frequency and Asset Quality
Authors: Balakrishnan Karthik , Ertan Aytekin 
Published: October 2017

ABSTRACT
We examine the effects of banks' financial reporting frequency from 2000 to 2014 and find that quarterly reporting improves their loan portfolio quality. Sample banks experience a relative decrease of about 11 percent in their nonperforming loans after switching to quarterly financial disclosures. Consistent with market discipline enhancing lending practices, these results are stronger in regimes with weaker depositor insurance and external monitoring, and in those with stronger capital markets. We also find that banks that provide quarterly financial information experience lower deposit interest rates and credit default swap spreads. Collectively, our findings suggest that quarterly reporting reduces banks' risk-taking.
JEL Classifications: G21; G28; G32; M41; M48.
ISOLATION AND PHYTOCHEMICAL TEST OF ANTICANCER ISOLATE OF SPONGE Hyrtios erecta
Authors: Swantara I Made Dira , Rita Wiwik Susanah , Hernindy Rr Anisa 
Published: October 2017

AbstractThis research aims to isolate and phytochemically test of the toxic isolate from ethanol extract of the sponge Hyrtios
erecta taken from the waters of Pari Island beach, Thousand Islands (Jakarta). Extraction of the sponges was carried out by
70% ethanol at room temperature. Partition and purification of the compounds were done by column chromatography with the
stationary phase of silica gel and the mobile phase of n-hexane-chloroform (2:8). Toxicity screening test was done based on
Bhrine Shrimp Lethality Test (BSLT). The compounds of the active isolate were performed by phytochemical test. Based on the
results, it was found that the toxic isolate of Hyrtios erecta sponges has anticancer activity with IC50 of 30,497 ppm. The
anticancer isolate contained alkaloid, steroid, and polyphenol compounds
CAPSULAR GENOTYPING OF Klebsiella pneumoniae ISOLATED FROM CLINICAL SAMPLES AT SANGLAH GENERAL HOSPITAL IN 2013
Authors: Saskara I Made Sutha , Fatmawati Ni Nengah Dwi , Budayanti Ni Nyoman Sri , Budayanti Ni Nyoman Sri , Hidayati Wahyu 
Published: October 2017

Klebsiella pneumoniae, one of hospital associated infections agents, become more prevalence in worldwide. It is an opportunistic
pathogen that can cause wide spectrum of diseases such as pneumonia and sepsis. Capability of this bacterium in causing
diseases is influenced by its virulence factors. Capsule (K) is considered as the major virulence factor responsible in avoiding
first defense mechanism of host cells. Almost no study about molecular characterization of capsule is reported in Bali; therefore,
this study is aimed to determine the capsular genotype of K. pneumoniae isolated from clinical specimens at Sanglah General
Hospital. Samples were collected between January until Desember 2013 in Sanglah General Hospital at Clinical Microbiology
Laboratory. Total of 56 samples were examined taken from blood, urine, pus, sputum, and other sources. All K. pneumoniae
DNA were then subjected to PCR using specific primer pairs against K1, K2 and K5. The results showed that from 56 K.
pneumoniae clinical isolates only 12 (21.4%) were PCR positive, and all (100%) of them were positive for K2 capsule gene. Ten
(83.3) of them were from blood, 1 (8.3%) from sputum, and 1 (8.3%) from other specimens. Finding of K2 capsule gene in most
K. pneumoniae clinical isolates at Clinical Microbiology Laboratory in Sanglah General Hospital might figure out the
relationship of capsular type with severity of diseases. However, further study of capsule in Bali with higher isolates number will
help in understanding of pathogenicity of K2 capsule in order to treat the infections itself.
Public Communication on Science and Technology
Authors: Lamichhane Shobha Kanta 
Published: October 2017

'Comfort living' is the indicator of the development of a nation. Comfortable and prosperous living cannot be imagined without proper use of science and technology (S&T). And, technology cannot survive without a strong foundation of development in science. S&T research in nanotechnology promises breakthrough in medicine and healthcare, energy and environment, nanoelectronics and national security etc. It is widely felt that nanotechnology will be the next industrial revolution. We Nepalese people are unfortunate since we don't have proper national planning in S&T and let it be keep into least priority. The Himalayan Physics Year 5, Vol. 5, Kartik 2071 (Nov 2014)Page: 12-16
Anti-PR3 and Anti-MPO IgG ANCA in Autistic Children with Chronic GI Disease
Authors: Russo A.J. , Krigsman A , Jepson B , Wakefield Andrew 
Published: October 2017

Aim To assess both ant-PR3 and anti-MPO IgG anti-neutrophil cytoplasmic antibodies (ANCA), in autistic children with gastrointestinal symptoms and controls, and to test the hypothesis that there is an association between the presence of these antibodies and inflammatory GI disease seen in many autistic children. Subjects and Methods ELISA's were used to measure anti-PR3 and anti-MPO IgG in 40 autistic children with chronic digestive disease (many with ileo-colonic lymphoid nodular hyperplasia (LNH) and inflammation of the colorectum, small bowel and/or stomach), and 41 controls (21 age matched autistic children with no GI disease and 20 age matched children without autism or GI disease). Results Six of 40 autistic children with chronic digestive disease had anti-PR3 antibodies compared to none of the 41 controls (p <0.01). Thirteen of the 40 autistic children with chronic digestive disease had anti-MPO IgG compared to only 3 (1 autistic control with no GI disease and 2 non-autistic controls without GI disease) of 41 controls (p <0.001). All six of those with anti-PR3 IgG also had anti-MPO antibodies. These results suggest a relationship between individuals with ANCA and severity of intestinal disease in a subset. Discussion These results suggest an association between anti-PR3 and anti-MPO antibodies and a subset of ASD children with GI inflammation.
Impact of aerosol hygroscopic growth on retrieving aerosol extinction coefficient profiles from elastic-backscatter lidar signals
Authors: Zhao Gang , Zhao Chunsheng , Kuang Ye , Tao Jiangchuan , Tan Wangshu , Bian Yuxuan , Li Jing , Li Chengcai 
Published: October 2017

Abstract. Light detection and ranging (lidar) measurements have been widely used to profile the ambient aerosol extinction coefficient (σext). The particle extinction-to-backscatter ratio (lidar ratio, LR), which strongly depends on the aerosol dry particle number size distribution (PNSD) and aerosol hygroscopicity, is introduced to retrieve the σext profile from elastic-backscatter lidar signals. Conventionally, a constant column-integrated LR that is estimated from aerosol optical depth is used by the retrieving algorithms. In this paper, the influences of aerosol PNSD, aerosol hygroscopic growth and relative humidity (RH) profiles on the variation in LR are investigated based on the datasets from field measurements in the North China Plain (NCP). Results show that LR has an enhancement factor of 2.2 when RH reaches 92 %. Simulation results indicate that both the magnitude and vertical structures of the σext profiles by using the column-related LR method are significantly biased from the original σext profile. The relative bias, which is mainly influenced by RH and PNSD, can reach up to 40 % when RH at the top of the mixed layer is above 90 %. A new algorithm for retrieving σext profiles and a new scheme of LR enhancement factor by RH in the NCP are proposed in this study. The relative bias between the σext profile retrieved with this new algorithm and the ideal true value is reduced to below 13 %.
The regulation of coralline algal physiology, an in situ study of Corallina officinalis (Corallinales, Rhodophyta)
Authors: Williamson Christopher James , Perkins Rupert , Voller Matthew , Yallop Marian Louise , Brodie Juliet 
Published: October 2017

Abstract. Calcified macroalgae are critical components of marine ecosystems worldwide, but face considerable threat both from climate change (increasing water temperatures) and ocean acidification (decreasing ocean pH and carbonate saturation). It is thus fundamental to constrain the relationships between key abiotic stressors and the physiological processes that govern coralline algal growth and survival. Here we characterize the complex relationships between the abiotic environment of rock pool habitats and the physiology of the geniculate red coralline alga, Corallina officinalis (Corallinales, Rhodophyta). Paired assessment of irradiance, water temperature and carbonate chemistry, with C. officinalis net production (NP), respiration (R) and net calcification (NG) was performed in a south-western UK field site, at multiple temporal scales (seasonal, diurnal and tidal). Strong seasonality was observed in NP and night-time R, with a Pmax of 22.35 µmol DIC (g DW)−1 h−1, Ek of 300 µmol photons m−2 s−1 and R of 3.29 µmol DIC (g DW)−1 h−1 determined across the complete annual cycle. NP showed a significant exponential relationship with irradiance (R2 = 0.67), although was temperature dependent given ambient irradiance  > Ek for the majority of the annual cycle. Over tidal emersion periods, dynamics in NP highlighted the ability of C. officinalis to acquire inorganic carbon despite significant fluctuations in carbonate chemistry. Across all data, NG was highly predictable (R2 = 0.80) by irradiance, water temperature and carbonate chemistry, providing a NGmax of 3.94 µmol CaCO3 (g DW)−1 h−1 and Ek of 113 µmol photons m−2 s−1. Light NG showed strong seasonality and significant coupling to NP (R2 = 0.65) as opposed to rock pool water carbonate saturation. In contrast, the direction of dark NG (dissolution vs. precipitation) was strongly related to carbonate saturation, mimicking abiotic precipitation dynamics. Data demonstrated that C. officinalis is adapted to both long-term (seasonal) and short-term (tidal) variability in environmental stressors, although the balance between metabolic processes and the external environment may be significantly impacted by future climate change.
DC conductivity of polyethylene and crosslinked polyethylene measured with a dynamic temperature program
Authors: Ghorbani Hossein , Olsson Carl-Olof , Jeroense Marc 
Published: October 2017

Electrical conductivity of HVDC cable insulation materials is important for its function. It is very practical to evaluate this parameter by DC conductivity measurements on press molded polymeric plates samples. While in real operation conditions, the insulation undergoes both static and dynamic thermal conditions, most of the published research in this area is still focused only on steady state thermal conditions. In this work, the focus is instead on the behavior of electrical conductivity under dynamic thermal conditions. Press molded XLPE and LDPE plate samples with different preparations are tested under 25 kV/mm DC field with a dynamic temperature profile ranging from room temperature to 90 °C.It was discovered that in many cases, the measured conductivity during dynamic measurements strongly deviates from the expected Arrhenius temperature dependence; instead the conductivity shows a nonmonotonictemperature dependence manifested as conductivity peaks during heating and cooling. The behavior is found to be strongly related to the type of protective film used during press molding of the sample; further degassing leads to a reduction of the nonmonotonic temperature dependence and with longdegassing the behavior tends to the expected Arrhenius temperature dependence.
SI streamer initiation and breakdown in pressurized technical air in sphere-plane geometries
Authors: Hjortsam Olof , Faleke Håkan , Larsson Mats 
Published: October 2017

The breakdown properties of air are well studied at ambient pressure. For higher pressures, less information can be found in the literature. In this paper, switching impulse breakdown properties in technical air as a function of pressure are investigated. The study focus on a spherical electrodes with 30 mm and 10 mm diameter with a distance to a ground plane of 100 mm. From prebreakdown photomultiplier signals and photographs taken with an ultrahigh-speed camera also the initiation voltages are measured. From the analysis of the results, streamer initiation fields as well as propagation fields are extracted. As expected, the breakdown voltages as well as the initiation voltages increases with pressure, for both positive and negative polarity. Streamer integrals are used to evaluate the initiation fields. The observed streamer initiation voltage agrees well with streamer integral theory in the studied pressure range 1 Bar to 6 Bar. The pressure dependence of streamer propagation is also analyzed and is found to approximately scale linear with the pressure for both polarities.
Breakdown Behaviour of Damaged Low-Voltage Cables: Laboratory Experiments and Field Experience
Authors: Kruizinga B. , Wouters P.A.A.F. , Steennis E.F. 
Published: October 2017

Faults in Low-Voltage (LV) cables commonly develop from earlier inflicted damage. Outages can be preceded by high-current transients of duration too short to activate protective devices like fuses. This paper explores such early signatures of possible upcoming faults both by laboratory experiments and in a field study.Upon exposure of moisture the breakdowns and their voltage and current characteristics are investigated for two LV cable types (OIP and PVC). In laboratory tests, a clear intermittent behaviour is observed. Typical breakdown signals show a current transient igniting around the voltage peak and its extinction is usually close to the voltage zero crossing. LV grid faults should be distinguished from events occurring in connected households. Though signal patterns can be comparable, a distinction can usually be made, mainly based on current peak values because of the interruption characteristics of household miniature circuit breakers. A pilot study involving 23 connections in the LV grid has shown similar signals as obtained in the laboratory tests. Typical cable fault related transients were observed beforehand. This indicates a correlation of such transients and the likelihood of an outage. A large variation of the time to an outage was observed ranging from several hours to several months.