Journal articles: 'Capacité Base Collecteur'

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Rong-Tai Chen. "Capacitor-Based Multisource of Flyback-Type Power Collector." IEEE Transactions on Industrial Electronics 55, no. 8 (August 2008): 3115–23. http://dx.doi.org/10.1109/tie.2008.921247.

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Zhang, XiWen. "Research on Capacity of Network of Different Cells." Highlights in Science, Engineering and Technology 27 (December 27, 2022): 580–83. http://dx.doi.org/10.54097/hset.v27i.3819.

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For the indicator system that affects user perception, voice services such as user traffic, average call duration, call drop rate, congestion rate, paging failure rate, call start failure rate, etc; For data services, such as user connection success rate, Internet access rate, etc. The following figure shows the system architecture of the web-based user awareness assessment system. Through the network infrastructure and signaling detection system, the original signaling monitoring data, policy data of each call, analysis data collection, core network traffic statistics and alarm information are collected on a platform, and then through the preprocessing of data, a report based on the user awareness evaluation system is generated to identify problems before users, solve problems in time and provide work efficiency, Provide user perceived satisfaction. The purpose of the research is to find out the influence of the add or decrease of the base station to the capacity of the whole network in order to deal with it when we build or rebuild some base stations in the network. The research takes use of the Gaussian white noise channel as the model of the channel. And every single cell is divided into two parts to calculate the interference and the capacity of the channel. The standard to divide the cells is the base station. As the number of cells increases, the capacity of the whole network increases.

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Yu, Shang-Pang, Tun-Ping Teng, Chia-Cing Huang, Hsiang-Kai Hsieh, and Yi-Jia Wei. "Performance Evaluation of Carbon-Based Nanofluids for Direct Absorption Solar Collector." Energies 16, no. 3 (January 20, 2023): 1157. http://dx.doi.org/10.3390/en16031157.

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In this study, carbon-based nanofluids (CBNFs) were prepared using a revised vortex trap method and applied in the direct absorption solar collector (DASC) to evaluate the feasibility of CBNFs in DASC. The thermal storage performance of water and different concentrations of CBNFs (0.01, 0.025 and 0.05 wt%) was assessed with a 1000 W halogen lamp as a simulated light source under different volumetric flow rates (1.5, 3.0, and 4.5 L per minute [LPM]) at a constant thermal storage load (2.4 kg of water) and ambient temperature of 26 °C. The thermal storage capacity, system efficiency factor (SEF), and heating rate of the CBNFs as the working fluid were higher than those of water in most cases. The thermal storage capacity and SEF of 0.05 wt% CBNF at a volumetric flow rate of 3.0 LPM were 10.36% and 9.36% higher than that of water, respectively. The relevant experimental results demonstrate the great potential of CBNFs in DASC.

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Lizhu, Ma. "Study on the reliability of the carrying capacity of static pressure pipe piles in Shenyang." E3S Web of Conferences 136 (2019): 04070. http://dx.doi.org/10.1051/e3sconf/201913604070.

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On the basis of the previous work, combined with the test piles collected from Shenyang area, this paper makes a detailed study of the current standard single safety factor design pile base method to the probability limit state design pile base method. The main work is statistical analysis, calculation of reliability index, analysis of the main factors affecting the reliability index of static pressure pipe pile and the analysis of its sub-coefficient coefficients, the reliability of its carrying capacity analysis has made a useful exploration.

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Shin, Dongyeeb, Yongkwon Song, Donghyeon Nam, Jun Hyuk Moon, Seung Woo Lee, and Jinhan Cho. "High-capacity sulfur copolymer cathode with metallic fibril-based current collector and conductive capping layer." Journal of Materials Chemistry A 9, no. 4 (2021): 2334–44. http://dx.doi.org/10.1039/d0ta09516h.

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We report a sulfur copolymer cathode with high areal/specific capacity, rate capability, and cycling stability using carbonization-induced Ni electroplating and interfacial interaction-controlled conductive capping layer.

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Rippy, Janet F. M., Paul V. Nelson, and Ted Bilderback. "Cation Exchange Capacity and Base Saturation of 64 Peat Mosses." HortScience 40, no. 4 (July 2005): 1124D—1124. http://dx.doi.org/10.21273/hortsci.40.4.1124d.

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Problems of inconsistent initial pH in peat moss-based substrates that are created using standard formulas for limestone additions, and pH drift from the target in those substrates may be due to variations in the CEC and BS of peat moss. This study was conducted to determine whether such variation exists. Sixty-four peat moss samples were obtained from several bogs across Alberta, Canada. Adsorbed cations on each peat moss sample were displaced with hydrochloric acid (HCl), and flushed out with three deionized water washes. The displacing/flushing solution was collected and later analyzed for concentration of bases (Ca, Mg, K, and Na) using atomic absorption spectrometry. After cations were removed, the peat moss exchange sites were saturated with barium acetate [Ba(OAc)2] to displace the H+, which were then collected by a second flushing with deionized water. This second displacing/flushing solution was titrated with measured amounts of NaOH to a phenolphthalein end point. Base saturation and CEC were calculated. There were significant variations in CEC (ranging from 108.12 to 162.25 cmol·kg-1) and BS (ranging from 13.52% to 63.97% of CEC) among the peat moss samples. Ca accounted for 78.08% of the BS. For a given peat moss, the higher the BS, the lower the neutralization requirement to achieve a target pH. Also, high CEC peat mosses may have greater buffering capacity than those with low CEC, which may result in less pH drift.

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Mohan, Mithun, and Satish Chandra. "Capacity estimation of unsignalized intersections under heterogeneous traffic conditions." Canadian Journal of Civil Engineering 47, no. 6 (June 2020): 651–62. http://dx.doi.org/10.1139/cjce-2018-0796.

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Capacity of movements at unsignalized intersections are usually estimated based on gap acceptance theory and accuracy of such estimation largely depends on the extent to which its inherent assumptions are satisfied. However, owing to the typical traffic operations at intersections in developing countries, many of these assumptions remain unsatisfied and hence, estimating capacity as per the procedure laid down in the capacity manuals of developed countries will prove inaccurate. The present research focuses on developing the entire procedure for estimating the capacities of movements at unsignalized intersections dealing with heterogeneous traffic. This study is based on data collected from eight different unsignalized intersections located in various parts of India and by using Harders’ capacity model as base, the procedure to estimate the parameters of this model is revised to suit the traffic operations in developing countries and further modifies the Harders’ model using the movement capacities measured in the field.

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Putri, Indra A. S. L. P., and Fajri Ansari. "Managing Nature-Based Tourism in Protected Karst Area Based on Tourism Carrying Capacity Analysis." Journal of Landscape Ecology 14, no. 2 (September 1, 2021): 46–64. http://dx.doi.org/10.2478/jlecol-2021-0012.

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Abstract Nature-based tourism relies on the beauty of nature to maintain sustainability and attraction. However, karst environment is vulnerable to disturbance due to tourism activity. This study, therefore, aims to analyze the social, ecological, physical, real, and effective carrying capacity of Pattunuang Assue Nature Tourism Object, Bantimurung Bulusaraung National Park. Data were collected through field measurement, observation, and interviews. Data of visitors’ favorite spot and its size were measured through observation and field measurement. Visitors’ perceptions related to the destination, including their duration activities were collected through interviews. It was further collected by observing the various spots of activity, and measuring the area of restrictive factors such as physical (number of rainy days), biotic (vegetation diversity at tree level, the diversity of birds during the busy visiting hours, the initial period of the Tarsius fuscus’ birth). We also observe the equipment and infrastructure of the destination and collected data related to management through interviews with the managers. This study reveals various carrying capacity value which can be used as an option for the managers to choose the best way to manage destination in the right way. The result showed that particular activities exceeded carrying capacity but other activities far below their carrying capacity value. The study furthermore discusses how to deal with numerous activities. It also suggests an increase in the number of visitors by considering their ecological characteristics and management capacity.

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KIM, Jong H., Kyoung H. SHIN, Chang S. JIN, Dong K. KIM, Yong G. KIM, Jong H. PARK, Yong S. LEE, Yong S. JOO, and Kyung H. LEE. "The Effect of Nickel Foam Current Collector in Carbon Electrode Based Electric Double Layer Capacitor." Electrochemistry 69, no. 11 (November 5, 2001): 853–57. http://dx.doi.org/10.5796/electrochemistry.69.853.

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Baguet, Audrey, Inge Everaert, Benito Yard, Verena Peters, Johannes Zschocke, Ana Zutinic, Emile De Heer, Tomasz Podgórski, Katarzyna Domaszewska, and Wim Derave. "Does low serum carnosinase activity favor high-intensity exercise capacity?" Journal of Applied Physiology 116, no. 5 (March 1, 2014): 553–59. http://dx.doi.org/10.1152/japplphysiol.01218.2013.

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Given the ergogenic properties of β-alanyl-L-histidine (carnosine) in skeletal muscle, it can be hypothesized that elevated levels of circulating carnosine could equally be advantageous for high-intensity exercises. Serum carnosinase (CN1), the enzyme hydrolyzing the dipeptide, is highly active in the human circulation. Consequently, dietary intake of carnosine usually results in rapid degradation upon absorption, yet this is less pronounced in subjects with low CN1 activity. Therefore, acute carnosine supplementation before high-intensity exercise could be ergogenic in these subjects. In a cross-sectional study, we determined plasma CN1 activity and content in 235 subjects, including 154 untrained controls and 45 explosive and 36 middle- to long-distance elite athletes. In a subsequent double-blind, placebo-controlled, crossover study, 12 men performed a cycling capacity test at 110% maximal power output (CCT 110%) following acute carnosine (20 mg/kg body wt) or placebo supplementation. Blood samples were collected to measure CN1 content, carnosine, and acid-base balance. Both male and female explosive athletes had significantly lower CN1 activity (14% and 21% lower, respectively) and content (30% and 33% lower, respectively) than controls. Acute carnosine supplementation resulted only in three subjects in carnosinemia. The CCT 110% performance was not improved after carnosine supplementation, even when accounting for low/high CN1 content. No differences were found in acid-base balance, except for elevated resting bicarbonate following carnosine supplementation and in low CN1 subjects. In conclusion, explosive athletes have lower serum CN1 activity and content compared with untrained controls, possibly resulting from genetic selection. Acute carnosine supplementation does not improve high-intensity performance.

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Ye, Xiaofei, Xingchen Yan, Jun Chen, Tao Wang, and Zhao Yang. "Impact of Curbside Parking on Bicycle Lane Capacity in Nanjing, China." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 31 (April 20, 2018): 120–29. http://dx.doi.org/10.1177/0361198118758334.

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As roadway resources are being occupied by curbside parking and because of the operational characteristics of parking maneuvers, the capacity of the adjacent travel lane can be significantly reduced. To analyze the influence of curbside parking on the capacity of the bicycle lane, a conflict technique based on additive conflict flow was applied to establish the base capacity model. The actual capacity of the bicycle lane with curb parking was then established by adjusting the base capacity to reflect the influence: lane width, the time influence of parking maneuvers, and proportion of e-bikes. Eight datasets from the exclusive bicycle lanes with different widths and parking maneuvers were collected in Nanjing, China for calibration and evaluation purposes. As a result of a higher number of parking maneuvers, the Emeiling Road was taken as the main case study. The capacity of the bicycle lane was calculated, and the effectiveness of the proposed method was validated by the speed-density-volume relationship model. The proposed model was applied to analyze the effect of different positions of parking berths on the capacity. The results indicate that, with around 65% share of e-bikes, the estimated capacity of Emeiling Road is 2622 bicycles/h, decreasing by 47.10% under the influence of curbside parking. The results also imply that the berths near the openings of the isolation belt have less influence than those in the middle position. These findings could be helpful and useful for practitioners to improve the capacity of bicycle lanes under the influence of curbside parking.

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Dussault, Gilles, Laurence Codjia, Kathy Kantengwga, and Kate Tulenko. "Assessing the capacity to produce health personnel in Rwanda." Leadership in Health Services 21, no. 4 (October 3, 2008): 290–306. http://dx.doi.org/10.1108/17511870810910092.

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PurposeThe purpose of this paper is to present the results of a study to assess the capacity of a poor country to scale‐up its production of health workers.Design/methodology/approachThe assessment consisted of a survey of institutions training doctors, nurses and technicians in Rwanda. Data on student intake, teaching staff, infrastructures and equipment were collected directly from the institutions by questionnaire administered in person. Data for the qualitative assessment of current and future capacity of production were collected by interviews.FindingsPhysical capacity in terms of classrooms and dormitories was generally good, except at the Faculty of Medicine. Laboratories and libraries were considered inadequate everywhere. Few national teachers hold a PhD and dependence on foreign trainers is high. Nursing teachers' training is also insufficient, particularly in pedagogy. As trainers are young, providing them with additional training should be easier. All institutions reported insufficient budgets. Managerial competencies are not developed. There is no licensing mechanism to ensure quality maintenance.Research limitations/implicationsThere is no validated data base on training institutions and the research had to rely on self‐reported statistics and other information.Practical implicationsA rapid increase in the production of health personnel would be difficult in the current conditions. Production strengthening should involve stakeholders from training institutions, and include measures to motivate and retain trainers, and to improve the quality of training.Originality/valueThe authors are not aware of similar studies in low income countries. Their methodology can be of interest to researchers and policy‐makers who do not have access to baseline data.

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Munadi, La Ode Muh, Muhammad Amrullah Pagala, Deki Zulkarnain, and Muh Obi Kasmin. "Analysis of The Carrying Capacity of Food Crop Follow-up As a Source of Ruminant Animal Feed In Kolaka Regency." Chalaza Journal of Animal Husbandry 6, no. 1 (November 2, 2021): 12–20. http://dx.doi.org/10.31327/chalaza.v6i1.1450.

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The research aims to analyze the ruminant and food crop integration system development in Kolaka Regency using LQ (Location Quotient) analysis and supporting capacity analysis, sourced from secondary data collected from various literature supporting this study. The analysis results showed that the base for cattle development is in Samaturu, Polinggona, and Watubangga subdistricts, and buffalo livestock development bases are located in Latambaga Wolo Iwoimendaa Subdistrict, Baula Subdistrict, Pomalaa Subdistrict, and Tanggetada Subdistrict. The base of goat livestock development is in latambaga, Iwoimendaa, Somalia, and Toari subdistricts with LQ1 values. As for the analysis of the carrying capacity of beef cattle feed, 19,724 heads (LU), buffalo 23,644 heads (LU), and goats 182,445 heads (LU). In conclusion, the utilization of food crop follow-up results can be a source of animal feed. It gives direction to the utilization of feed resources based on follow-up results.

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Domitrović, Josipa, and Tatjana Rukavina. "Application of GPR and FWD in Assessing Pavement Bearing Capacity." Romanian Journal of Transport Infrastructure 2, no. 2 (December 1, 2013): 11–21. http://dx.doi.org/10.1515/rjti-2015-0015.

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Abstract The process of pavement maintenance and rehabilitation starts by collecting the data which will form the base for evaluation of pavement functional and structural condition. Collection of data can be performed by destructive and non-destructive testing. Usually preferred are the non-destructive methods, that do not damage the pavement, and the process of pavement evaluation is objective and repeatable. Non-destructive testing methods are becoming more and more popular, especially for assessing the structural condition of the pavement. Non-destructive testing by a Falling Weight Deflectometer (FWD) and the analysis of so collected data by the process of backcalculations is today the usual tool for assessing pavement bearing capacity. One of the basic input parameters for analysis of the data collected by FWD is pavement layers thickness. The practice in Croatia is to determine pavement layers thickness by coring. This destructive method affects pavement integrity, so the number of such tests should be kept to the minimum. By coring the accurate thickness of all pavement layers is obtained on specific point locations. Thus, numerous deviations in layer thickness remain unnoticed, and in the end, use of such data for the process of backcalculations does not provide ac urate values of layer moduli. Coring can be replaced with non-destructive method of testing by Ground Penetrating Radar (GPR), which provides continuous information on thickness of all pavement layers. The paper shows the method for assessing the bearing capacity of the pavement based on the data collected by FWD, GPR and coring. The calculation for layer moduli was performed by the ELMOD software, separately for the layers thickness data obtained by coring, and separately for the thickness obtained by GPR tests. Analysis and comparison of the results of calculated elasticity moduli obtained by using various methods for collecting layer thickness data were performed in the paper.

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Khan, Muhammad Umair, Gul Hassan, Muhammad Asim Raza, and Jin Ho Bae. "Liquid Capacitor Based on Hafnium Oxide." Key Engineering Materials 801 (May 2019): 211–16. http://dx.doi.org/10.4028/www.scientific.net/kem.801.211.

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In this work, we synthesize Hafnium (IV) oxide (HfO2) ink from hafnium chloride (HfCl4) powder assisted with deionized water. The poly acrylic acid (PAA) is used as surfactant to decrease the surface tension. Conversion of HfCl4 into HfO2 was detected by Raman spectroscopy and energy dispersive X-ray spectroscopy (EDS) characterization techniques. This proposed ink can be easily synthesized at a low temperature. Using the synthesis ink, a liquid capacitor is proposed, which is tested for electrochemical analysis. Indium tin oxide (ITO) coated PET is used as bottom and top current collector electrode, polydimethylsiloxane (PDMS) mold is used as separator, and HfO2 ink is used as aqueous electrolyte. Liquid capacitor is also tested on different bending diameters using bending machine from flat down to 10 mm bending curvature, which shows a stable capacitor function.

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Fourati, Walid, and Bernhard Friedrich. "Trajectory-Based Measurement of Signalized Intersection Capacity." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 10 (May 18, 2019): 370–80. http://dx.doi.org/10.1177/0361198119848412.

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Capacities of road intersections are a limiting factor and crucial for the performance of road networks. Therefore, for purposes of intersection design and of optimal signal timing, numerous methodologies have been proposed to either estimate or directly measure the capacity of single movements at road intersections. However, both model-based estimation and direct measurement suffer from the large effort that is needed to gather the relevant data. Even worse, once the data are collected they only represent a snapshot of the capacity over time. This paper proposes an alternative approach to estimate capacity of signalized road intersections over time using only automatically generated trajectories of probe vehicles. The obtained capacity can be used to evaluate the effective degree of saturation using real demand, or to assess hypothetic different conditions in demand or signaling. The cyclic operation of signalized intersections allows for the accumulation of trajectories, and thus in practical applications for the compensation of potentially low penetration rates. Within a sequential process the intersection’s cycle time and the approach green time and saturation flow rates are determined. The determination of the cycle time and the green times is based on an existing approach. The derivation of the saturation flow rates relies on its direct dependency to the saturation time headway and uses two parameters to be calibrated. Testing with a commercial dataset on an intersection in Munich produced a good signal timing estimation and saturation flow values that are comparable to a calculation based on the German guideline.

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Suardi, Alessandro, Sergio Saia, Walter Stefanoni, Carina Gunnarsson, Martin Sundberg, and Luigi Pari. "Admixing Chaff with Straw Increased the Residues Collected without Compromising Machinery Efficiencies." Energies 13, no. 7 (April 7, 2020): 1766. http://dx.doi.org/10.3390/en13071766.

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The collection of residues from staple crop may contribute to meet EU regulations in renewable energy production without harming soil quality. At a global scale, chaff may have great potential to be used as a bioenergy source. However, chaff is not usually collected, and its loss can consist of up to one-fifth of the residual biomass harvestable. In the present work, a spreader able to manage the chaff (either spreading [SPR] on the soil aside to the straw swath or admixed [ADM] with the straw) at varying threshing conditions (with either 1 or 2 threshing rotors [1R and 2R, respectively] in the combine, which affects the mean length of the straw pieces). The fractions of the biomass available in field (grain, chaff, straw, and stubble) were measured, along with the performances of both grain harvesting and baling operations. Admixing chaff allowed for a slightly higher amount of straw fresh weight baled compared to SPR (+336 kg straw ha−1), but such result was not evident on a dry weight basis. At the one time, admixing chaff reduced the material capacity of the combine by 12.9%. Using 2R compared to 1R strongly reduced the length of the straw pieces, and increased the bale unit weight; however, it reduced the field efficiency of the grain harvesting operations by 11.9%. On average, the straw loss did not vary by the treatments applied and was 44% of the total residues available (computed excluding the stubble). In conclusion, admixing of chaff with straw is an option to increase the residues collected without compromising grain harvesting and straw baling efficiencies; in addition, it can reduce the energy needs for the bale logistics. According to the present data, improving the chaff collection can allow halving the loss of residues. However, further studies are needed to optimise both the chaff and the straw recoveries.

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Shimizu, Masahiro, Tomonari Ohnuki, Takayuki Ogasawara, Taketoshi Banno, and Susumu Arai. "Electrodeposited Cu/MWCNT composite-film: a potential current collector of silicon-based negative-electrodes for Li-Ion batteries." RSC Advances 9, no. 38 (2019): 21939–45. http://dx.doi.org/10.1039/c9ra03000j.

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To develop the potential high theoretical capacity of Si as a negative electrode material for Li-ion batteries, a new type of composite current collector in which carbon nanotubes (CNTs) are immobilized on a Cu surface was developed using an electroplating technique.

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Massiera, Philippe, Laura Trinchera, and Giorgio Russolillo. "Evaluation de la présence des capacités marketing: Proposition d’un index multidimensionnel et hiérarchique." Recherche et Applications en Marketing (French Edition) 33, no. 1 (December 11, 2017): 31–55. http://dx.doi.org/10.1177/0767370117741108.

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Notre ambition est de proposer un instrument multidimensionnel permettant de décrire le degré de présence des principales capacités marketing sur trois niveaux d’abstraction. Après avoir présenté le cadre théorique relatif aux capacités marketing, l’article souligne tout d’abord les limites des principales échelles proposées par Vorhies et al. (1999 ; 2009), Vorhies et Harker (2000), et Vorhies et Morgan (2003 ; 2005). Ensuite, les étapes nécessaires au développement et à la validation d’un index multidimensionnel formatif de troisième ordre sont détaillées. Sur la base d’une collecte de données réalisée auprès d’un échantillon de 199 PME françaises, la phase d’analyse de la validité convergente et discriminante de l’instrument est réalisée à l’aide de l’approche PLS aux modèles à variables latentes (PLS-PM). Enfin, la validité nomologique de l’instrument proposé est confirmée via l’étude de l’influence des capacités marketing sur la performance organisationnelle.

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Park, Sijin, and Geon-Hyoung An. "Evaluation of Electrochemical Stability of Graphite Current Collector for Electric Double Layer Capacitor Based on Acid Electrolyte." Korean Journal of Materials Research 31, no. 5 (May 31, 2021): 272–77. http://dx.doi.org/10.3740/mrsk.2021.31.5.272.

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Lin, Ruoxu, Shichao Zhang, Zhijia Du, Hua Fang, Yanbiao Ren, and Xiaomeng Wu. "Copper nanowires based current collector for light-weight and flexible composite silicon anode with high stability and specific capacity." RSC Advances 5, no. 106 (2015): 87090–97. http://dx.doi.org/10.1039/c5ra13568k.

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Alkaissi, Zainab Ahmed. "Traffic Simulation of Urban Street to Estimate Capacity." Journal of Engineering 28, no. 4 (April 1, 2022): 51–63. http://dx.doi.org/10.31026/j.eng.2022.04.04.

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This research aimed to develop a simulation traffic model for an urban street with heterogeneous traffic capable of analyzing different types of vehicles of static and dynamic characteristics based on trajectory analysis that demonstrated psychophysical driver behavior. The base developed model for urban traffic was performed based on the collected field data for the major urban street in Baghdad city. The parameter; CC1 minimum headway (represented the speed-dependent of the safety distance from stop line that the driver desired) justified in the range from (2.86sec) to (2.17 sec) indicated a good match to reflect the actual traffic behavior for urban traffic streets. A good indication of the convergence between simulated and field data of maximum error of 8% and below 10% for traffic flow rate and that provided a successfully simulated model by VISSIM for urban traffic behavior. The traffic speed decreased slowly, but still, variation in a large range from (30 km/hr to 55 km/hr) until a flow rate of 1000 vehicles/hr was reached, then the traffic speed decreased sharply. The dispersion between data points was caused by driver behavior and the special characteristics of the urban street. This dispersion of data points reduced and became less significant when it reached the capacity of the road. The obtained capacity value for divided urban traffic streets was (1610 vehicles/hr) with an optimum traffic density of 64 vehicles/km. Traffic simulation utilizing VISSIM parameters had been developed successfully since the simulation could estimate the field capacity with an acceptable range of error of 7.5 % (less than 10%).

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Moreno, Valter, José Ricardo Monteiro Pinheiro, and Luiz Antonio Joia. "Resource-Based View, Knowledge-Based View and the Performance of Software Development Companies." Journal of Global Information Management 20, no. 4 (October 2012): 27–53. http://dx.doi.org/10.4018/jgim.2012100102.

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Software development companies face a globalized, highly competitive and turbulent environment, where efficiency, efficacy and innovation capacity are critical for survival. In this context, small and medium enterprises (SMEs) tend to suffer the most due to the scarcity of resources to which they are usually subjected and their dependence on a few more powerful customers. This paper describes the elaboration and test of a model that draws on the resource-based view and knowledge-based view to explain the differences in performance of software SMEs. The analysis of data collected from 265 Brazilian companies suggests that: absorptive capacity contributes significantly to the development of a company’s stock of technological knowledge; the flexibility of the IT infrastructure, managerial capacity, and IT technological knowledge are strong predictors of software development performance; and organizational performance is positively influenced by software development performance and managerial capacity. The implications of these findings are then discussed.

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Kuzmenkov, D. M., A. V. Olkhovskiy, V. S. Yunin, and K. V. Kutsenko. "Application of nanoparticles for solar-driven steam generation." Vestnik IGEU, no. 3 (June 30, 2022): 13–23. http://dx.doi.org/10.17588/2072-2672.2022.3.013-023.

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Nanoparticles suspended in the base fluid intensify the light-absorbing properties of the medium within wavelength range from 0,2 to 2,5 μm significantly. Also, they can serve as vapor bubble nucleation sites when the base fluid is boiling. Such suspensions are widely used to design the direct absorption solar collectors, in which the nanofluid is possessed both the working fluid and solar energy absorber. However, there is a lack of theoretical models that are capable to evaluate the steam rated capacity of direct absorption solar collector. Thus, the aim of the present paper is an experimental and theoretical study of the boiling of nanofluid exposed to thermal radiation. The experimental study has been carried out on a laboratory-scale unit with a solar radiation simulator. The experimental unit is capable to operate at a continuous steady-state mode with recirculation of condensed fluid. Two types of nanoparticles have been tested: multiwall carbon nanotubes with two sizes of 49 nm and 72 nm and 110 nm iron oxide particles Fe3O4. Distilled and salt water has been used as the base fluid for all types of particles. Mass fraction of particles is varied from 0,5 to 5 %. The reference experiment has been carried out for salt water in a blackened receiver. The theoretical model assumes that boiling is localized in a narrow region adjacent to the irradiated surface. An experimental study of the steam rated capacity for various types of particles has been carried out. An analytical expression has been proposed to estimate the steam rated capacity during the boiling of a nanofluid exposed to thermal radiation. Comparison of the experimental data for the distilled water-based and saltwater-based nanofluids has been carried out. It is found that the addition of sea salt does not affect the steam generation significantly. The maximum difference is 12 %. The highest steam rated capacity is achieved when using carbon nanotubes of mass fraction of 5 %. The steam rated capacity is increased by 23 % compared with the reference experiment. The theoretical model reproduces the experimental data with an average deviation of 7 %. Application of nanoparticles in direct absorption solar collectors allows us to increase the steam rated capacity compared with the boiling of the base liquid in a blackened receiver. The theoretical model is capable to estimate to a high precision the steam rated capacity in case of boiling of suspension exposed to thermal radiation. The results of this study may be of interest during the development of solar power plants with a steam turbine cycle.

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Farman Majeed Salam and Assist prof Dr Hirsh Muhammad Majid. "Evaluation of Capacity and Level of Service for Heterogeneous Traffic of Urban Multi-Lane Highways." CONSTRUCTION 2, no. 2 (October 11, 2022): 31–38. http://dx.doi.org/10.15282/construction.v2i2.8609.

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This study aimed to evaluate the capacity and level of service of urban multi-lane highway where the traffic composition is not uniform. Capacity is the greatest sustainable hourly flow rate, and the level of service is a performance measure used for assessing the quality of road service. In this study the last methodology of HCM2016 was used. Data collection was done on four different segments chosen to be suitable with the highway capacity manual conditions. Traffic volumes have been collected using two different techniques; moving car method and the stationary method. All the required geometric parameters have also been measured. The peak hour factor has been found for all the segments. The spot speed was used to check the speed limit (mounted speed) and to find free flow speed. At the end, the level of service and capacity for the segments were found. The level of services of most of the segments is between C and D. The base capacity of the segments is between 1850 to 1900 pc/h/ln.

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Leimbacher, F. "Optimisation des systèmes de production traditionnels dans les grands et moyens troupeaux de moutons et de chèvres de Martinique et de Guadeloupe." Revue d’élevage et de médecine vétérinaire des pays tropicaux 44, special (May 1, 1991): 11–16. http://dx.doi.org/10.19182/remvt.9236.

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L'élevage traditionnel en vigueur en Martinique et en Guadeloupe (F.W.I.) est basé sur le pâturage libre des animaux, peu de parcellement des prairies, aucun contrôle de la reproduction (les mâles sont gardés au sein du troupeau tout au long de l'année) et aucune séparation des différents groupes d'animaux. De mauvaises conditions d'élevage souvent accompagnent de telles pratiques. Collecter des données d'élevage dans de telles conditions est très difficile particulièrement quand il y a un faible effectif de techniciens mis à disposition. L'auteur présente la méthodologie appliquée dans ces îles qui aide les éleveurs à accepter de nouvelles techniques de production et qui permet la collecte des données d'élevage. Cette méthodologie appellée "Opération Pilote" est basée sur des observations, études et expérimentations dans les Centres de Recherche ainsi que sur des observations, applications de résultats et contrôle de performances en fermes. Les résultats peuvent alors être une base de réflexions permettant de conseiller chaque éleveur sur un itinéraire technique spécifique, adapté à ses propres possibilités, en prenant en compte aussi les capacités techniques de l'environnement. Des pratiques de conduite d'élevage stables et améliorées favorisent par ailleurs, un contrôle de performances et une meilleure interprétation des résultats.

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Tolimir, Miodrag, Branka Kresović, Borivoj Pejić, Katarina Gajić, Angelina Tapanarova, Zorica Sredojević, and Boško Gajić. "Chemical properties of long-term irrigated Fluvisols of the Beli Drim river valley in the Klina region (Serbia)." Zemljiste i biljka 70, no. 1 (2021): 13–26. http://dx.doi.org/10.5937/zembilj2101013t.

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The impact of long-term (> 100 yr) irrigation on soil chemical properties was studied on eight plots in the Beli Drim river valley in Kosovo and Metohija near Klina, Serbia. For these studies, soil samples from shallow profiles were collected from only one or two depth zones of the Ah horizon; and from moderately deep and deep profiles, from two to three depth zones for the purpose of comparing irrigated field and non-irrigated meadow lands. Water from the Beli Drim River and surface gravity systems (irrigation furrows or border strip irrigation) were used for irrigation. Chemical variables included determination of pH-H2O, content of CaCO3, content of humus, hydrolytic acidity, sum of basic cations, cation exchange capacity, and base saturation. On irrigated soils, the results of chemical analysis showed on average a small increase in pH-H2O (0.07 pH units), as well as a significant decrease in humus content (2.00-4.75%), sum of basic cations (4.98-12.98%) and cation exchange capacity (12.8%) compared to the non-irrigated land of the study area. Long-term irrigation had no effect on hydrolytic acidity and base saturation in the Ah horizon of the investigated lands. Namely, the mentioned variations in the chemical properties of the investigated soils show that slight processes of reduction in the humus content and reduction of the content of base cations occured. Data on the chemical properties of the investigated soils indicate that the destructive processes of reduction in the humus content and leaching of base cations must be controlled in order to achieve a stable sustainable system of high productivity and prevent their further deterioration.

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Matias, Sammy S. R., José Marques Júnior, Diego S. Siqueira, and Gener T. Pereira. "Outlining precision boundaries among areas with different variability standards using magnetic susceptibility and geomorphic surfaces." Engenharia Agrícola 34, no. 4 (August 2014): 695–706. http://dx.doi.org/10.1590/s0100-69162014000400009.

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There is an increasing demand for detailed maps that represent in a simplified way the knowledge of the variability of a particular area or region maps. The objective was to outline precision boundaries among areas with different accuracy variability standards using magnetic susceptibility and geomorphic surfaces. The study was conducted in an area of 110 ha, which identified three compartment landscapes based on the geomorphic surfaces model. To determinate pH, organic matter, phosphorus, potassium and magnesium, the total sand and clay, 514 soil samples were collected at depths of 0-0.20 m and 0.60-0.80 m. The sum of base, cationic exchange capacity and base saturation were calculated and the magnetic susceptibility was evaluated in the laboratory using a system based on a balance of analytical precision method. Geomorphic surfaces identification allowed setting specific management areas (locations with maximum homogeneity of soil attributes). The map of spatial variability of magnetic susceptibility can be used to validate the precise boundaries among geomorphic surfaces identified in the field and infer the variability of clay content and soil base saturation.

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Gorbachuk, N. I., N. A. Poklonski, Ya N. Marochkina, and S. V. Shpakovski. "Controlling of Differential Resistance of p–n-Junctions of Bipolar Transistor in Active Mode by Method of Impedance Spectroscopy." Devices and Methods of Measurements 10, no. 3 (September 9, 2019): 253–62. http://dx.doi.org/10.21122/2220-9506-2019-10-3-253-262.

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Controlling of parameters of manufactured transistors and interoperational controlling during their production are necessary conditions for production of competitive products of electronic industry. Traditionally for controlling of bipolar transistors the direct current measurements and registration of capacity-voltage characteristics are used. Carrying out measurements on alternating current in a wide interval of frequencies (20 Hz–30 MHz) will allow to obtain additional information on parameters of bipolar transistors. The purpose of the work is to show the possibilities of the method of impedance spectroscopy for controlling of differential resistance of p–n-junctions of the bipolar p–n–p-transistor in active mode.The KT814G p–n–p-transistor manufactured by JSC “INTEGRAL” was studied by the method of impedance spectroscopy. The values of differential electrical resistance and capacitance for base–emitter and base–collector p–n-junctions are defi at direct currents in base from 0.8 to 46 µA.The results of the work can be applied to elaboration of techniques of fi checking of discrete bipolar semiconductor devices.

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Alsharari, Abdulmajeed, Mohamadamin Asgharzadeh, and Alexandra Kondyli. "Estimation of the Effect of Rain and Incidents on Freeway Capacity and Free-Flow Speed." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 8 (June 2, 2020): 536–44. http://dx.doi.org/10.1177/0361198120926500.

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This research aims to examine the effect of incidents with lane closures and adverse weather conditions (medium to heavy rain intensity) on capacity and free-flow speed (FFS) of freeway segments. Data were collected from multiple freeway segments located in the Kansas City, U.S., metro area from 2014 to 2018. The capacity and FFS were measured for two-lane, three-lane, and four-lane freeways under four conditions: ( 1 ) base conditions, ( 2 ) adverse weather only, ( 3 ) incidents only, and ( 4 ) adverse-weather-and-incidents. Capacity adjustment factors (CAF), and speed adjustment factors (SAF) were established to identify the remaining capacity or the FFS reduction during an incident or adverse weather conditions. The findings indicated that medium to heavy rain resulted in a 5% reduction in FFS at three-lane sites which is consistent with the adjustment factors shown in the Highway Capacity Manual 6th edition (HCM6); however, rain was not found to have a significant impact on freeway capacity. It was also found that incidents leading to one-lane closures reduced capacities by 30%, 17%, and 17% at two-lane, three-lane, and four-lane sites, respectively. Incidents were also found to reduce FFS by approximately 5%–10%, possibly because of “rubbernecking.” Adjustment factors that capture the combined effect of incidents and rain on FFS and capacity are also presented.

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Dasari, Harika, and Eric Eisenbraun. "Predicting Capacity Fade in Silicon Anode-Based Li-Ion Batteries." Energies 14, no. 5 (March 6, 2021): 1448. http://dx.doi.org/10.3390/en14051448.

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While silicon anodes hold promise for use in lithium-ion batteries owing to their very high theoretical storage capacity and relatively low discharge potential, they possess a major problem related to their large volume expansion that occurs with battery aging. The resulting stress and strain can lead to mechanical separation of the anode from the current collector and an unstable solid electrolyte interphase (SEI), resulting in capacity fade. Since capacity loss is in part dependent on the cell materials, two different electrodes, Lithium Nickel Oxide or LiNi0.8Co0.15Al0.05O2 (NCA) and LiNi1/3Mn1/3Co1/3O2 (NMC 111), were used in combination with silicon to study capacity fade effects using simulations in COMSOL version 5.5. The results of these studies provide insight into the effects of anode particle size and electrolyte volume fraction on the behavior of silicon anode-based batteries with different positive electrodes. It was observed that the performance of a porous matrix of solid active particles of silicon anode could be improved when the active particles were 150 nm or smaller. The range of optimized values of volume fraction of the electrolyte in the silicon anode were determined to be between 0.55 and 0.40. The silicon anode behaved differently in terms of cell time with NCA and NMC. However, NMC111 gave a high relative capacity in comparison to NCA and proved to be a better working electrode for the proposed silicon anode structure.

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Cho, Choon Young, Wonbin Lee, Byeong Gwan Bhang, Jinho Choi, Sang Hun Lee, Sung Cheol Woo, and Hyung Keun Ahn. "Convergence Analysis of Capacities for Photovoltaics and Energy Storage System Considering Energy Self-Sufficiency Rates and Load Patterns of Rural Areas." Applied Sciences 9, no. 24 (December 6, 2019): 5323. http://dx.doi.org/10.3390/app9245323.

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This work is a case study of 905 households, to present methods for optimizing the capacity of photovoltaic sytems (PVs)/energy storage systems (ESSs) for household to reach a desired energy self-sufficiency (70% to 90%). In order to calculate the capacity of PV and ESSs that would enhance the energy self-sufficiency of families in rural areas, the solar radiance data of the target area for the last five years and the average monthly power usage in the previous year were collected. Then, households with an average energy consumption of 250 kWh per month were chosen for this research. According to the simulation done using Solar Pro, the optimized capacities of PVs and ESSs are 2.67 kW and 7.15 kW, respectively, in order to achieve 90% energy self-sufficiency. We visualized the change in the optimum capacity of PVs and ESSs for the desired energy self-sufficiency. This study would be the base work for forming a grid-distributed energy network system by expanding the system to a national scale.

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DUTCA, Ioan, Filofteia NEGRUȚIU, Florin IORAȘ, Kevin MAHER, Viorel N. B. BLUJDEA, and Liviu Alexandru CIUVĂȚ. "The Influence of Age, Location and Soil Conditions on the Allometry of Young Norway Spruce (Picea abies L. Karst.) Trees." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 42, no. 2 (December 2, 2014): 579–82. http://dx.doi.org/10.15835/nbha4229714.

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In this study the influence of treeâ€™s age, location (i.e. latitude and altitude) and soil conditions (i.e. pH, humus content, carbon to nitrogen ratio, cation exchange capacity and percent base saturation) on tree allometry was investigated. The data was collected from 22 Norway spruce (Picea abies L. Karst) plantations located in Eastern Carpathians of Romania, aged between 4 and 15. From each plantation a soil sample and 10 trees were collected for soil chemical properties and biomass measurements, respectively. Root collar diameter (RCD) and height (H) based allometric equations were developed for total tree and vegetative organs of the tree (i.e. stem, branches, needles and roots). Furthermore, the interaction between the standardised residuals of these models and the tested factors was analysed. In order to account for the random effect of the clustered data, the mixed-effect modelling procedure was used. The results have shown no influence of these factors (age, location and soil conditions) on RCD based models, except for branches biomass model which was linked to soil carbon/nitrogen ratio. The H based models, however, were significantly influenced by latitude and soil cation exchange capacity as a consequence of H/RCD ratio change with these factors. The trees were more likely to allocate more to height growth when growing in higher latitudes or on soils with higher values of cation exchange capacity.

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Sang, Ling-zhi, Xiao-peng Tong, Wu-xiong Xu, Zhe Mao, and Xin-ping Yan. "An agent-based simulation on navigational capacity of multi-bridge waterways." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 231, no. 1 (August 3, 2016): 200–211. http://dx.doi.org/10.1177/1475090216635681.

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Multi-bridge waterways of river can cause the navigational bottleneck phenomenon because of the decreased passing efficiency and the increased ship risk. The navigational capacity calculation not only makes benefits to deck officers in operating safely and efficiently but also assists supervisors in the maritime traffic organizing. An agent-based simulation is proposed to evaluate the navigational capacity of multi-bridge waterways in Wuhan. Automatic Identification System data are collected to characterize the maritime traffic of multi-bridge waterways. The Monte Carlo methods are used to generate agents, while the needed random numbers in terms of ship type, length, width, speed over ground and arrival time are generated according to the estimated parameters. Seven behaviour strategies of the agent are made based on the real operation requirements of multi-bridge waterways. The proposed agent-based simulation is validated by the real sectional maritime traffic volume data. Simulation results show that, under the current navigational conditions, the navigational capacity of the investigated multi-bridge waterways in middle season is approximately 1512 ships (597 upstream ships and 915 downstream ships) per day. In addition, the increase in speed over ground can improve the navigational capacity and facilitate the capacity utilization.

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Buczyński, Przemysław, Marek Iwański, and Jakub Krasowski. "Assessment of the Impact of Hydraulic Binder on the Properties of the Cold Recycled Mixture with Foamed Bitumen and Bitumen Emulsion: Field Tests." Buildings 10, no. 12 (November 30, 2020): 223. http://dx.doi.org/10.3390/buildings10120223.

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The paper presents the results of tests of the impact of hydraulic and bituminous binders on the properties of the cold-recycled mixture (CRM). The composition of the cold-recycled mixture includes two types of different binders, i.e., bituminous binder in the form of foamed bitumen and bitumen emulsion, as well as Portland cement (CEM I 32.5R) and hydraulic binder. The hydraulic binder was produced by mixing three base ingredients in the following ratio: 40% CEM I 32.5R; 20% Ca(OH)2 and 40% CBD (cement bypass dust). The cold-recycled mixtures were produced under industrial conditions on a test section. The prepared CRM with bitumen emulsion (MCE) and foamed bitumen (MCAS) was collected from the test section and compacted under laboratory conditions. The impact of the type and kind of the binder was assessed in terms of physical properties, mechanical properties and deformation modulus (bearing capacity of subbase) of the recycled base course after 1, 7 and 28 days. It was found that the use of hydraulic binder in the recycled base course, regardless of the type of bituminous binder, reduced cohesion without reducing the remaining parameters.

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Hamdani, Ahmad Helman, Johanes Hutabarat, and Agus Didit Haryanto. "The Acid-Base Accounting (ABA) of Overburden Rock to Predict Acid Mine Water in Kasai Coal Mining, Indonesia." Oriental Journal of Chemistry 35, no. 3 (May 20, 2019): 1103–11. http://dx.doi.org/10.13005/ojc/350325.

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The Acid-Base Accounting (ABA) and TCLP methods from overburden samples collected from the coal mine in Kasai were undertaken to predict pre-mining acid mine water quality. Maximum potential acidity (MPA), acid neutralization capacity (ANC), net acid generation (NAG), net acid producing potential (NAPP) and ANC/MPA ratios were determined on the Acid-Base Accounting (ABA) protocol. Most of the samples from KS-10, KS-11 and KS-12 show the pH of NAG of overburden ranges from 5.53–7.86 negatively net acid neutralization potential (NAPP). The ANC/MPA ratio varied from 1.09–26.60 and is classified as non-acid-forming except at an interval depth of 7.00–9.00 m in KS-12, where it is classified as uncertainty. The potentially acid mine water detected in KS-39 at an interval depth of 16.00–36.00 m was classified as potential acid forming (PAF), indicated by a positive NAPP, a low ratio of ANC/MPA (below 1.0) and high dissolved metal iron.

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Rahmati, Roxana, Virinder Sidhu, Rosita Nunez, Rupali Datta, and Dibyendu Sarkar. "Correlation of Phosphorus Adsorption with Chemical Properties of Aluminum-Based Drinking Water Treatment Residuals Collected from Various Parts of the United States." Molecules 27, no. 21 (October 24, 2022): 7194. http://dx.doi.org/10.3390/molecules27217194.

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Over the past several decades, the value of drinking water treatment residuals (WTRs), a byproduct of the coagulation process during water purification, has been recognized in various environmental applications, including sustainable remediation of phosphorus (P)-enriched soils. Aluminum-based WTRs (Al-WTRs) are suitable adsorbent materials for P, which can be obtained and processed inexpensively. However, given their heterogeneous nature, it is essential to identify an easily analyzable chemical property that can predict the capability of Al-WTRs to bind P before soil amendment. To address this issue, thirteen Al-WTRs were collected from various geographical locations around the United States. The non-hazardous nature of the Al-WTRs was ascertained first. Then, their P adsorption capacities were determined, and the chemical properties likely to influence their adsorption capacities were examined. Statistical models were built to identify a single property to best predict the P adsorption capacity of the Al-WTRs. Results show that all investigated Al-WTRs are safe for environmental applications, and oxalate-extractable aluminum is a significant indicator of the P adsorption capacity of Al-WTRs (p-value = 0.0002, R2 = 0.7). This study is the first to report a simple chemical test that can be easily applied to predict the efficacy of Al-WTRs in binding P before their broadscale land application.

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Araújo, Nayara Christina Almeida, Leidivan Almeida Frazão, Igor Costa de Freitas, Evander Alves Ferreira, Daniela Aparecida Freitas, Marcia Vitória Santos, Demerson Arruda Sanglard, and Luiz Arnaldo Fernandes. "Soil chemical and microbiological attributes under integrated production system in Oxisol of degraded pasture." NOVEMBER 2020, no. 14(11):2020 (November 10, 2020): 1772–78. http://dx.doi.org/10.21475/ajcs.20.14.11.p2535.

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The objective of this study was to evaluate the chemical attributes and quality of an Oxisol after one year of conversion of degraded pasture into integrated production system. The evaluated treatments were degraded pasture (PAST-Control); Eucalyptus, clone Urograndis 144 (Eucalyptus grandis x E. urophylla hybrid) intercropped with cor and marandu grass (Brachiaria brizantha) (integration crop-livestock-forest system - ICLFS-M); with maize and perennial horse gram (Macrotyloma axillare) (ICLFS-HG); and with maize, java and marandu grass (ICLFS-M+J); Monoculture of marandu grass (MAR) and perennial horse gram (HG); and marandu grass intercropped with Java/ perennial horse gram (H+M). Soil samples were collected in July/2015 and January/2016 in 0-5, 5-10, 10-20 and 20-30 cm soil depth layers. The soil attributes such as pH, organic matter, phosphorus, sum of bases, effective and potential cation exchange capacity and base saturation were evaluated. The implantation of ICLFS system contributed to increase of soil organic matter, sum of bases, effective and potential cation exchange capacity and soil base saturation. The soil biological activity was increased in the rainy season, and the soil microbial carbon increased in ICLFS-HG+M, ICLFS- HG, ICLFS-M and HG+M when compared to monocultures and PAST. Integrated production systems provide improved in soil quality even with a short time implementation.

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Gwanshak, Joshua Yohanna, and Luka Dung Gyang. "Rural-Migrants Risk Tolerance in Urban City Centres of Plateau State." BOKKOS JOURNAL OF APPLIED SCIENTIFIC REPORTS 1, no. 2 (March 14, 2021): 60–77. http://dx.doi.org/10.47452/bjasrep.v1i2.25.

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Risk tolerance is a subject that has been explored extensively globally, where predictors such as age, education level, earnings, status, occupation and weather or climate change has been proved to influence rural-urban migration. This research is necessitated to identify areas of rural migrant’s risk tolerance in urban centres of Plateau State, with the stated objective of, examining the rural migrant’s areas of risk tolerance, ascertain rural migrant’s self-assessment capacity and competence base towards risk tolerance. In the study respondents were selected only if they were rural migrants using purposive sampling techniques of a sample size of 1325 respondents. Primary data were collected using Structured Questionnaire (SRQ), Interview and Focus Group Discussion (FGD) processes. Out of 1325, 128 of the respondents were selected based on recommendation as knowledgeable informant using snowball sampling. A linear regression analysis was used to test the significance of rural migrant’s risk tolerance. The result revealed that areas of risk tolerance identified marital status, occupation, age, pursuit of education, and Job opportunities as significant to rural migrants risk tolerance in the study. And migrants were flexible towards adapting to any situation, handle problems better and were willing to take higher risks to adapt to urban centre. It is on this note that rural migrants have high self- assessment capacity and competence base potential to risk tolerance in urban centres of Plateau State.

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Ben-Edigbe, Johnnie. "Estimation of Midblock Median Opening U-Turn Roadway Capacity Based on Sectioning Method." Discrete Dynamics in Nature and Society 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/8293240.

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Capacity definition recognises that only traverse point or uniform section of roadway capacity can be estimated. Since midblock median U-turn opening is a nonuniform infrastructure, a novel capacity estimation method is needed. The paper proposes sectioning models for estimating U-turn capacity based on dynamics and regression theory. Surveyed U-turn roadway was divided into three sections (entry, middle curve, and exit). Traffic data for each section and adjoining priority traffic stream were collected continually for eight weeks. After modifying passenger car values, ensuing traffic flows and computed densities were used to develop capacity model for entry and middle curve. Regression models where traffic flows from the exit section were taken as the dependent variables and flows from the priority stream were taken as independent variable were used to model capacity for the exit section. Sensitivity analysis shows that the proposed models can produce reliable and accurate results. Results reveal that that traffic capacity at entry (1221 pcu/h) and exit (about 350 pcu/h) sections differs significantly. The paper concluded that U-turn roadway capacity cannot be generalized because the structure is nonuniform.

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Chen, Yong, Xuejun Zhang, Yanhong Tian, and Xi Zhao. "Synthesis and Characterization of Silicon Nanoparticles Inserted into Graphene Sheets as High Performance Anode Material for Lithium Ion Batteries." Journal of Nanomaterials 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/734751.

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Silicon nanoparticles have been successfully inserted into graphene sheets via a novel method combining freeze-drying and thermal reduction. The structure, electrochemical performance, and cycling stability of this anode material were characterized by SEM, X-ray diffraction (XRD), charge/discharge cycling, and cyclic voltammetry (CV). CV showed that the Si/graphene nanocomposite exhibits remarkably enhanced cycling performance and rate performance compared with bare Si nanoparticles for lithium ion batteries. XRD and SEM showed that silicon nanoparticles inserted into graphene sheets were homogeneous and had better layered structure than the bare silicon nanoparticles. Graphene sheets improved high rate discharge capacity and long cycle-life performance. The initial capacity of the Si nanoparticles/graphene keeps above 850 mAhg−1after 100 cycles at a rate of 100 mAg−1. The excellent cycle performances are caused by the good structure of the composites, which ensured uniform electronic conducting sheet and intensified the cohesion force of binder and collector, respectively.

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Chaim, Isaac A., Zachary D. Nagel, Jennifer J. Jordan, Patrizia Mazzucato, Le P. Ngo, and Leona D. Samson. "In vivo measurements of interindividual differences in DNA glycosylases and APE1 activities." Proceedings of the National Academy of Sciences 114, no. 48 (November 9, 2017): E10379—E10388. http://dx.doi.org/10.1073/pnas.1712032114.

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The integrity of our DNA is challenged with at least 100,000 lesions per cell on a daily basis. Failure to repair DNA damage efficiently can lead to cancer, immunodeficiency, and neurodegenerative disease. Base excision repair (BER) recognizes and repairs minimally helix-distorting DNA base lesions induced by both endogenous and exogenous DNA damaging agents. Levels of BER-initiating DNA glycosylases can vary between individuals, suggesting that quantitating and understanding interindividual differences in DNA repair capacity (DRC) may enable us to predict and prevent disease in a personalized manner. However, population studies of BER capacity have been limited because most methods used to measure BER activity are cumbersome, time consuming and, for the most part, only allow for the analysis of one DNA glycosylase at a time. We have developed a fluorescence-based multiplex flow-cytometric host cell reactivation assay wherein the activity of several enzymes [four BER-initiating DNA glycosylases and the downstream processing apurinic/apyrimidinic endonuclease 1 (APE1)] can be tested simultaneously, at single-cell resolution, in vivo. Taking advantage of the transcriptional properties of several DNA lesions, we have engineered specific fluorescent reporter plasmids for quantitative measurements of 8-oxoguanine DNA glycosylase, alkyl-adenine DNA glycosylase, MutY DNA glycosylase, uracil DNA glycosylase, and APE1 activity. We have used these reporters to measure differences in BER capacity across a panel of cell lines collected from healthy individuals, and to generate mathematical models that predict cellular sensitivity to methylmethane sulfonate, H2O2, and 5-FU from DRC. Moreover, we demonstrate the suitability of these reporters to measure differences in DRC in multiple pathways using primary lymphocytes from two individuals.

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Gui, Yue, Hui Tao, Pei Ning Zhu, Hua Hai Yang, and Tong Fa Deng. "Contrastive Studies of the Testing Method for the Bearing Capacity and Deformation Modulus of Dynamic Consolidation Backfill Foundation." Advanced Materials Research 446-449 (January 2012): 1606–14. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1606.

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The study collected a great deal of testing data, including the physical properties of soil before dynamic compaction and in-situ test and laboratory test data after dynamic consolidation, from twenty-eight engineering practices about dynamic consolidation granite residual soils(GRS) backfill foundation in power construction in Guangdong province over the past fifteen years. The backfill were classified into three types according to the fraction of soil, the corresponding foundations were classified into three types too. Base on the plate loading testing (PLT), the suitability of testing the bearing capacity and deformation modulus of dynamic Consolidation backfill foundation, by dynamic penetrating testing (DPT), standard penetrating testing (SPT) and laboratory soil testing (LST), were evaluated. The statistic relationships between SPT, DPT blow count and the bearing capacity, deformation modulus of dynamic consolidation backfill foundation were also generalized; as well as the factors influent the testing results were analyzed. And the accuracy of adopting two common region specifications to determine the bearing capacity and deformation modulus were analyzes. This article has some reference value on ground treatment detection of dynamic consolidation backfill foundation with similar engineering geological conditions.

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Sengke, Maria Myron Charlotta, Paramita Atmodiwirjo, and Yandi Andri Yatmo. "The Quality of Life of Hospital Inpatients: Exploring visual sphere based on seeing capacity." Environment-Behaviour Proceedings Journal 2, no. 6 (November 6, 2017): 141. http://dx.doi.org/10.21834/e-bpj.v2i6.985.

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This paper study the visual sphere based on a visual surface from a patients' point of view in immobile condition. Capturing image and calculating region were used to identify visual sphere as a collected scene, that established a coordinate system, based on visual degrees in seeing capacity. Coordinate system reveals the most effective of series of the scene in a coordinate mapping of the visual sphere. The most effective of series of the scene will identify the maximum level of seeing capacity. These findings provide new evidence to improving interior design for inpatients in the hospital.

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Silva Lima, Fernando, Waldecy Rodrigues, and Nilton Marques de Oliveira. "The Biodiesel Economic Indicators in Northern Brazil Based on Tocantins State." International Journal of Business Administration 11, no. 2 (March 24, 2020): 17. http://dx.doi.org/10.5430/ijba.v11n2p17.

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This article aimed to perform a regional analysis of biofuel through the biodiesel production capacity in Tocantins in 2008 and 2017. The guiding question of this research was: what is the importance of the biodiesel sector in Brazil and Tocantins, in relation to the sectors of services, industry and storage services in terms of production capacity. The hypothesis is that, in relation to production capacity, the Tocantins biodiesel sector has lost its potential compared to other economic sectors in the state. Taking as theoretical assumption the theories of regional development. Data were collected from the website of the Brazilian Institute of Geography and Statistics (IBGE) and the National Petroleum Agency (ANP). The results show that biodiesel in 2008 had potential for Tocantins economy, but not in the same proportionality in 2017.

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Kuldeep Srivastava, R. K. Patel, S. D. Pandey Amrendra Kumar, and Akram Ahmed Vishal Nath. "Productivity Improvement with Rain Water Harvesting and Rechargeable Capacity Study of Stored Runoff Water Collected from Catchment Areas of Litchi Based Production System." International Journal of Current Microbiology and Applied Sciences 10, no. 7 (July 10, 2021): 393–404. http://dx.doi.org/10.20546/ijcmas.2021.1007.043.

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Lindle, Jane Clark. "Ensuring the Capacity of University-Based Educational Leadership Preparation: The Collected Works of the National Commission for the Advancement of Educational Leadership Preparation." Educational Administration Quarterly 38, no. 2 (April 2002): 129. http://dx.doi.org/10.1177/0013161x02038002002.

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Sójka, Eugeniusz, and Riad Zaidan. "Effect of winter wheat (cv. Jana) seed ageing on its viability and vigour." Acta Societatis Botanicorum Poloniae 52, no. 1 (2014): 53–60. http://dx.doi.org/10.5586/asbp.1983.006.

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Viability and vigour of freshly collected 1, 2 and 3 years old seeds of the winter wheat cv. Jana were determined, on the base of the rate of germination, germinative capacity and the mean germination time, as well as the length of the shoot after 4, 7 and 10 days of the germination test. The intensity of respiration of whole caryopses, of isolated embryos and of the mitochondria was also measured. It was shown that the seed vigour and viability decreases with ageing. In seeds stored over longer periods the respiratory activity decreases as consequence of disturbance of the biogenesis of mitochondria, decline of oxidative phosphorylation and a decrease of the ability to oxidize the respiratory substrate.

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Li, ShiBao. "Analysis of Human-Land Coupled Bearing Capacity of Qiangtang Meadow in Northern Tibet Based on Fuzzy Clustering Algorithm." Mathematical Problems in Engineering 2020 (May 7, 2020): 1–9. http://dx.doi.org/10.1155/2020/8231237.

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Aiming to address the problems of high energy consumption, low efficiency, low correlation between the analyzed and actual results, and poor rationality of research indexes in current methods of analysis of human-land coupled bearing capacity of meadows, a novel method of human-land coupled bearing capacity analysis of Qiangtang meadow in northern Tibet, based on fuzzy clustering algorithm, is proposed. Basic geographic information data in Tibet were acquired, the collected data images were registered by ENVI4.2 software, and the collected data were vectorized by ArcGIS 9.3 software to construct a basic geographic information database in Tibet. Based on the frequency domain processing algorithm, the geographic information image was suppressed by noise and filtered by using a high-pass filter to realize the geographic information data processing in the study area. The human-land coupled bearing capacity analysis of Qiangtang meadow in northern Tibet was evaluated through fuzzy clustering, bearing capacity evaluation, and bearing capacity calculation under the sharing of closure. The experimental results showed that the average running energy consumption of the method was 81 J, and 97% of the analyzed results were consistent with the actual situation. These results indicate that the operation efficiency of the method is high, and the rationality coefficient of the research index is large. The proposed method has superior performance and feasibility.

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Luong, Dao Thi Anh, and Quyet Huu Do. "Fabricating a flexible super capacitor prototype based on nano - composite electrode and polymer electrolyte." Science and Technology Development Journal 19, no. 4 (December 31, 2016): 195–201. http://dx.doi.org/10.32508/stdj.v19i4.683.

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Super capacitor is an important device for energy storage and usage with high power and high efficiency. Commercial super capacitors are typically fabricated by using binder to attach electrode powder to the metal foil current collector. In this paper, we present a method to fabricate super capacitors using binder-free electrodes and carbon current collector to enhance the compact size, light weight and flexibility. To obtain high power and high energy density, nano composite electrode of CNTs-polyaniline was employed. The super capacitors with PVA electrolyte achieved the electrode capacitance of 170 F/g and charged voltage can be up to 1.2 volt, which is the maximum voltage achieved by aqueous PVA electrolyte.

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Journal articles on the topic 'Capacité Base Collecteur'

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