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2022 ◽  
Vol 4 (2) ◽  
pp. 1087-1093
Author(s):  
Niluh Nita Silfia ◽  
Artika Dewie ◽  
Asri Widyayanti

The Emo Demo strategy is the arrangement of advising with the procedure of conveying messages that are given in a straightforward, fun and contacting feeling, animating the objective of directing to effortlessly recollect the message given. As one of the directing procedures with respect to elite breastfeeding, instruction for wellbeing units is done on the Emo Demo-ASI Only Enough technique which intends to build the information and abilities of wellbeing frameworks in the Dolo Health Center working region in giving advising utilizing the Emo Demo-ASI just Enough strategy. This people group administration is through giving materials and exhibits to sharpen the abilities of wellbeing frameworks who are engaged with advising exercises, particularly about elite breastfeeding as one of the anticipation of hindering in the workspace of the Dolo Health Center. This movement is completed in gatherings, starting and finishing with a pre-test and post-test. The aftereffects of this review show an expansion in information on most of wellbeing units as much as 72.5%. With a restricted time, after an exhibition and practice of the abilities of the Emo demo-ASI technique was adequate, from the past 100% incompetent, it was seen that few wellbeing frameworks had the option to rehearse the emotional demo-ASI strategy, just 10% were talented.


2022 ◽  
Vol 13 (1) ◽  
pp. 0-0

In this article whale optimization algorithm (WOA) has been applied to solve the combined heat and power economic dispatch (CHPED) problem. The CHPED is energy system which provides both heat and power. Due to presence of valve point loading and the prohibited working region, the CHPED problems become more complex one. The main objective of CHPED problem is to minimize the total cost of fuel as well as heat with fulfill the load demand. This optimization technique shows several advantages like having few input variables, best quality of solution with rapid computational time. The recommended approach is carried out on three test systems. The simulation results of the present work certify the activeness of the proposed technique.


2021 ◽  
Vol 9 ◽  
Author(s):  
Peibin Zhu ◽  
Wen Chen ◽  
Liang Liu

In this article, we reported the synthesis and characterization of gold nanoclusters (AuNCs) with a diameter of ∼2 nm. A simple method of microwave-assisted reaction was applied here, with L-cysteine as both reducing agent and stabilizer. The resulting AuNCs were analyzed by means of TEM, XPS, DLS, and IR. Their photophysical performance was then analyzed in detail, including UV-vis absorption, emission, quantum yield, and lifetime. Efficient red emission was observed from these AuNCs, originating from ligand-to-metal nanoparticle core charge transfer (LMNCT). This red emission was found quenchable by Fe(III) cations. The corresponding quenching curve and sensing performance were discussed. An effective working region of 0–80 μM with an LOD of 3.9 μM was finally observed. Their quenching mechanism was revealed as Fe(III) energy competing for the LMNCT process. The novelty and advancement of this work is the simple synthesis and impressive sensing performance, including wide working region, good linearity, and selectivity.


Author(s):  
Xueliang Zhang ◽  
Hongliang Yue ◽  
Zhenmin Li ◽  
Wenchao Hu ◽  
Jinlin Xu ◽  
...  

In this paper, a dynamic model is adopted to investigate the stability and response characteristics of a vibrating system driven by four vibrators placed on two different rigid frames (RFs). Using the equations of motion of the system derived, the conditions for synchronization and stable operation of the system are studied by the average method and Hamilton’s rules, respectively. Based on the theoretical results obtained, some factors are further studied concerning the stable phase differences (SPDs), the coefficients for ensuring stability, and the vibration amplitudes of the two RFs in different resonant regions. These serve to reveal the stability and response characteristics of the system that determine the ultimate function of the vibrating machine. Finally, numerical simulations are carried out to examine the validity of the theoretical methods and numerical qualitative results. Based on the results from the theory and simulation analyses, it is suggested that the working region of the system should be selected in the sub-resonant region corresponding to the natural frequency (NF) of the main vibrating system in the [Formula: see text]- and [Formula: see text]-directions. In this case, the ideal relative circular motion for two RFs with a well isolation effect can be achieved, and the energy is saved.


2021 ◽  
Author(s):  
Yenew Alemu Mihret

Abstract Background of the study: Under-five mortality is the likelihood for a child born alive to die between birth and fifth birth day. Mortality under the age of five has been the main problem in public health policies especially in rural parts of Ethiopia.Objective: The objective of this study was to assess the risk factors of under-five mortality in Ethiopia using the 2011 EDHS data. Results: Information from 8,668 women included in the study show that 64.5% of the women never experienced under-five deaths of their children. Among four possible count models considered, the ZINB regression model was selected as the most appropriate model. Conclusion: The study revealed that mother’s age first birth, breastfeeding status, wealth index, whether the mother is currently working, region and mother’s level of education had statistically significant association with the number of under-five deaths in rural parts of Ethiopia.


2021 ◽  
Author(s):  
Yenew Alemu Mihret

Abstract Background of the study: Under-five mortality is the likelihood for a child born alive to die between birth and fifth birth day. Mortality under the age of five has been the main problem in public health policies especially in rural parts of Ethiopia.Objective: The objective of this study was to assess the risk factors of under-five mortality in Ethiopia using the 2011 EDHS data. Results: Information from 8,668 women included in the study show that 64.5% of the women never experienced under-five deaths of their children. Among four possible count models considered, the ZINB regression model was selected as the most appropriate model. Conclusion: The study revealed that mother’s age first birth, breastfeeding status, wealth index, whether the mother is currently working, region and mother’s level of education had statistically significant association with the number of under-five deaths in rural parts of Ethiopia.


Author(s):  
Giulio Cantini ◽  
Simone Salvadori

Abstract Energy companies in the power generation field are continuously searching for green technologies to reduce pollutant emissions. In that context, small hydropower plants represent an attractive solution for distributed electricity generation. Reverse-running centrifugal pumps (also known as "pump-as-turbines", PaT) are increasingly selected in that field. Amongst the existing type of pumps, drag-type regenerative pumps (RP) can perform similarly to radial centrifugal pumps in terms of head and efficiency for low specific speed values. For a fixed rotational speed, RPs with linear blades work as pump or turbine only depending on the flow rate. Such peculiarity makes it particularly intriguing to evaluate RPs working characteristic in the turbine operating mode. In the present paper, the performance of three Regenerative Pump-as-Turbines (RPaT) are analyzed using Computational Fluid Dynamics (CFD). The numerical approach is validated using experimental data for both an RP (in the pump working region) and a regenerative turbine (RT) (in the turbine working region). Finally, the numerical simulation of a small-scale RP allows for characterizing both the pump and the turbine regions. Results shows that for a RPaT it is possible to find a "switch region" where the machine turns from behaving as a pump to behaving as a turbine, the losses not being overcome by the turbine power output. The analysis of the RPaT also shows the inversion of the flow pattern and the constant positioning of the pivot around which the flow creates the typical helical structure that characterizes RPs.


2021 ◽  
pp. 096228022098354
Author(s):  
N Satyanarayana Murthy ◽  
B Arunadevi

Diabetic retinopathy (DR) stays as an eye issue that has continuously developed in individuals who experienced diabetes. The complexities in diabetes cause harm to the vein at the back of the retina. In outrageous cases, DR could swift apparition disaster or visual impairment. This genuine impact had the option to charge through convenient treatment and early recognition. As of late, this issue has been spreading quickly, particularly in the working region, which in the end constrained the interest of an analysis of this disease from the most prompt stage. Therefore, that are castoff to protect the progressions of this disorder, revealing of the retinal blood vessels (RBVs) play a foremost role. The growth of an abnormal vessel leads to the development steps of DR, where it can be well known by extracting the RBV. The recognition of the BV for DR by developing an automatic approach is a major aim of our research study. In the proposed method, there are two major steps: one is segmentation and the second one is classification of affected retinal BV. The proposed method uses the Kinetic Gas Molecule Optimization based on centroid initialization used for the Fuzzy C-means Clustering. In the classification step, those segmented images are given as input to hybrid techniques such as a convolution neural network with bidirectional-long short-term memory (CNN with Bi-LSTM). The learning degree of Bi-LSTM is revised by using the self-attention mechanism for refining the classification accuracy. The trial consequences disclosed that the mixture algorithm achieved higher accuracy, specificity, and sensitivity than existing techniques.


Author(s):  
N.V. Masalsky

To implement effective biomedical diagnostics, it is important to evaluate the potential of non-uniformly doped silicon cylindrical field nanotransistors, which are comparable in size to biological nanoobjects. With such special engineering of the working region of the transistor, when high-doped zone is bordered by the source, and low-doped zone with drain, can significantly increase the sensitivity of the sensor, due to the fact that the gating mechanism of molecules associated on its surface, becomes more efficient due to the complete screening of carriers in the workspace. This improves the transistor's conductivity, which provides an acceptable electrical response. Research the detecting properties of longitudinally non-uniformly doped silicon transistor biosensors with cylindrical geometry, which function in the depletion mode, using computer modeling based on the developed mathematical model of the electric current of the transistor in the subthreshold mode, taking into account the requirements for conducting field experiments. Quasianalyticity model subthreshold current for silicon field-effect transistor with non-uniformly doping of the working area where high-doping zone bordered by the source and low-doping with drain, on the basis of analytical solution of 2D Poisson equation was designed. Several prototypes with different concentration conditions of doping between zones, ranging from three orders of magnitude to five times higher, were studied using the example of measuring the pH of solutions using computer modeling. In this case, the operating mode of biosensors was regulated by strobing the electrolyte. In all cases, the gating mechanism of molecules bound on the surface of sensors will be more effective due to the complete shielding of carriers in the working area. With a certain form of impurity concentration in the work area, it can potentially increase the sensitivity by a factor of ten and provide an acceptable level of response. Also, an important advantage of the non-uniformly doped sensors is their very low charge detection limit. It can be concluded that reducing the steepness of the sub-threshold characteristic is one of the main goals in the development of biosensors based on silicon field-effect transistors. And an effective approach is a special engineering of the working area of the transistor structure of the sensor, associated with its non-uniformly doping. The developed model and the results show that further optimization of the structure of silicon cylindrical field nanotransistor sensors can provide a significant improvement in their sensitivity, as well as obtain a reliable assessment of its limits, and serve as a factor for the development of equipment for biomedical diagnostics.


Author(s):  
Giulio Cantini ◽  
Simone Salvadori

Abstract Energy companies in the power generation field are continuously searching for green technologies to reduce pollutant emissions. In that context, small hydropower plants represent an attractive solution for distributed electricity generation. Reverse-running centrifugal pumps (also known as “pump-as-turbines”, PaT) are increasingly selected in that field. Amongst the existing type of pumps, drag-type regenerative pumps (RP) can perform similarly to radial centrifugal pumps in terms of head and efficiency for low specific speed values. For a fixed rotational speed, RPs with linear blades work as pump or turbine only depending on the flow rate. Such peculiarity makes it particularly intriguing to evaluate RPs working characteristic in the turbine operating mode. In the present paper, the performance of three Regenerative Pump-as-Turbine (RPaT) are analyzed using Computational Fluid Dynamics (CFD). The analysis is supported by an already validated in-house 1D code developed in cooperation with Pierburg Pump Technology Italy SPA. The obtained results are also discussed considering the theoretical behavior of the circulatory velocity in a regenerative machine as described by a widely used 1D model, which is extended in the present paper to the turbine working region. The numerical approach is validated using experimental data for both an RP (in the pump working region) and a regenerative turbine (RT) (in the turbine working region). Finally, the numerical simulation of a small-scale RP allows for the detailed characterization of both the pump and the turbine regions. The numerical analysis shows that for a RPaT it is possible to find a “switch region” where the machine turns from behaving as a pump to behaving as a turbine, the losses not being overcome by the turbine power output. The analysis of the RPaT also shows the inversion of the flow pattern and the positioning of the pivot around which the flow creates the typical helical structure that characterizes RPs.


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