Miracle-dz/UniFAR-FTUs huggingface dataset:
Fine droplet generation using tunable electrohydrodynamic pulsation

High-efficiency generation of fine droplets is significant for many microfluidic chips and sensor applications. To produce fine droplets, nozzles with small diameters are needed, which results in a high cost for nozzles and low efficiency of droplet generation. In this paper, a tunable electrohydrodynamic pulsation method which can generate fine droplets with high frequency and controllable size is presented using low conductivity liquids. The effects of flow rates and voltage parameters with respect to deposition frequency and droplet size are investigated. The influence of these parameters on Taylor cone formation time are also discussed and simple scaling laws are proposed to reveal and guide the droplet generation process. Experimental results show that single cycle deposition frequency decreases with increasing voltage frequency, but is only slightly influenced by the flow rates. The droplet size also decreases with voltage frequency, while large flow rates can make this decline gradual allowing better control. Moreover, the Taylor cone formation time may greatly affect the stability of the deposition frequency when the voltage frequency is larger than 30 Hz. Due to the short cycle time of high voltage frequencies, the hydrodynamic behavior in the emission process may be considerably affected by the increase of volume, which is also related to the flow rates. Tunable micropatterns consisting of fine droplets can be achieved by using this method in combination with motion stages.
Nimble navigators: recollections of parental influence on girls’ activism

Abstract During adolescence, activism provides an outlet for ideas, visions, and concerns about societal issues as teens stake their claim in society. Girls often engage in activism as they begin to form their independent identities and explore their communities. However, the extent of parental influence on activist engagement is unclear, as gendered differences exist in how parents interact with youth activism. In this study, we explore how women, as they move away from their teenage years, recollect parental influence on their journeys as activists and the impact of their work on their relationships with parents. Using phenomenological inquiry and bracketing of the data, we examine the pivotal memories of teen activists and how they contributed to activists’ agency and relationships. Uncovering how women perceive the effects of parental influences on their teen activism will provide insight into how girls navigate the challenges of independence, activism, and family during formative teenage years.
Experience of our First-Ever Living Donor Liver Transplantation In Hiv-Positive Patient-Report From Developing Country with Literature Review

Human Immunodeficiency Virus (HIV) is one of the gravest health challenges worldwide in the present era as it has been for the past 4 decades. HIV has always been a sort of stigma and most clinicians are reluctant to perform liver transplantation for chronic liver disease patients with HIV co-infection. Patients with CD4+ cell count >100/ml along with suppressed mRNA levels on PCR, stable HAART regimen, and absence of any AIDS-specific illness or opportunistic infectionsare the requirements for selecting HIV-positive recipients for liver transplantation. We report the first living donor liver transplant in an HIV-positive recipient in a developing country. Here are the details of the case. Keywords: HIV, living donor, Liver transplantation, developing country
Whose view is it anyway? Media coverage of litigation in for-profit firms’ role in the opioid crisis

ABSTRACT The United States opioid epidemic continues to bring suffering to individuals and families as well as a crushing economic toll to communities. Stakeholders require resources to combat the epidemic. Firms that manufacture, distribute, and market opioids are the primary defendants of lawsuits, which play out in public view. This study investigates the public statements made by firms and media coverage in opioid lawsuits through the lens of their word choices. We use text analysis to uncover the similarities and differences in the language used to discuss the opioid crisis. The results provide guidance for marketing, public relations, and communications.
Comparative Study of Voice Onset Time in English Word-Initial Stop Consonants Produced by Uzbek and American Speakers of English

The purpose of this study is to shed light on a comparative study of Voice Onset Time (VOT) values produced by Uzbek speakers of English and native speakers of American English. The study aimed to determine significant differences in terms of the VOT value in pronunciation of voiced and voiceless stop consonants in word-initial positions. Scholarly sources on the comparative study of Uzbek and English phonetics suggest that most of the Uzbek stop consonants possess similar qualities to those of English stop sounds (Abduazizov 1992; Yusupov 2013). A descriptive comparison of Uzbek and English consonants demonstrates the difference between the two languages in isolated forms rather than in speech. This study is motivated by the fact that little is known about recent studies on the instrumental comparative study of English plosives produced by Uzbek speakers of American English. In addition, so far, no studies have been carried out in VOT analysis of English sounds produced by Uzbek speakers. The research was conducted through voice recording and analyses of data collected from Uzbek speakers and American native speakers. Recordings of 3240 overall tokens were collected and analyzed using Praat phonetic software. The mean VOT values obtained from both subject groups have been compared and statistically tested using the Independent Samples t-test. The research findings show that Uzbek subjects’ and American native subjects’ VOT values differ significantly. However, there are a few words (9 out of 52) where the differences in the VOT values of the two subject groups are not statistically significant. The research presents implications for teaching pronunciation of English plosive sounds in word-initial positions where a stop consonant followed by a vowel sound to Uzbek speakers of English by taking into account the periodic measurement of consonants. In addition, there are implications for future research that might explore other features of VOT produced by Uzbek language speakers. Keywords: Voice Onset Time; stop consonants; voiced; voiceless consonants; Uzbek
Effect of eWOM, Ease of Use, Trust on Purchase Decision (Case Study on Blibli.com)

The purpose of this study was to determine: 1) Whether eWOM has a positive effect on purchase decisions, 2) Does Ease of Use have a positive effect on purchase decisions, 3) Does trust have a positive effect on purchase decisions. Data collection in this study was carried out using a questionnaire distributed online to Blibli users. The number of respondents used in this study is 100 respondents. The sampling technique used in this study is non-probability sampling by relying on judgmental sampling. Partial least square-structural equation modeling (PLS-SEM) analysis was performed using the SmartPLS 3.0 program to analyze the data. The findings of this study are that eWOM, Ease of Use and Trust have a positive effect on purchase decisions. The contribution of this research can provide input to the Blibli company to better maintain and manage ease of use, trust and electronic word of mouth so that Blibli users can use Blibli more freely and comfortably so that transactions carried out in Blibli can run more smoothly and safely, which is then will give Blibli an advantage as a player in Internet-based transaction systems because it is a fast paced industries that can change in a matter of time.
Onboard dynamic RGB‐D simultaneous localization and mapping for mobile robot navigation

Although the actual visual simultaneous localization and mapping (SLAM) algorithms provide highly accurate tracking and mapping, most algorithms are too heavy to run live on embedded devices. In addition, the maps they produce are often unsuitable for path planning. To mitigate these issues, we propose a completely closed‐loop online dense RGB‐D SLAM algorithm targeting autonomous indoor mobile robot navigation tasks. The proposed algorithm runs live on an NVIDIA Jetson board embedded on a two‐wheel differential‐drive robot. It exhibits lightweight three‐dimensional mapping, room‐scale consistency, accurate pose tracking, and robustness to moving objects. Further, we introduce a navigation strategy based on the proposed algorithm. Experimental results demonstrate the robustness of the proposed SLAM algorithm, its computational efficiency, and its benefits for on‐the‐fly navigation while mapping.
Reducing co-existence penalty of retransmission-based cognitive radio protocol

A recently proposed cognitive radio model that exploits primary retransmissions is modified, such that the secondary pair uses multiple antennas. By doing so the co-existence penalty can be practically eliminated, while achieving the same useful secondary throughput as before. The method does not require any non-causal knowledge or full channel state information at any transmitter.
Marker assisted gene introgression in to common bean (Phaseolus vulgaris l) against angular leaf spot (Pseudosercospora griseola) and anthracnose (Colletotrichum lindemuthianum)

Angular leaf spot (ALS) and Anthracnose (ANT) are important diseases of common bean in Ethiopia. This study was conducted to pyramid resistant genes for ALS and ANT diseases into advanced line and to evaluate isolines against ALS and ANT using marker assisted selection in combination with phenotypic selection. The parent AND277 donor of Phg-1 and Co-14 genes for ALS and ANT respectively and the recipient KT-ABC001 line was used for this experiment. In genotypic selection, SSR and SCAR marker were used. Marker assisted backcrossing procedure was adopted and inheritances for resistant genes were characterized by using F2 and backcrosses. The Chi-square values showed no significant differences for ALS and ANT, 0.05 (p<0.78) and 0.03 (p<0.9) in genotypic and phenotypic selection respectively. The narrow sense heritability for ALS and ANT were 0.97 and 0.95 implying that selection for ALS and ANT can be done at early stage in a segregating population. Correlation values for ALS (r = -0.65) and for ANT (r = -0.73) were obtained between phenotypic and molecular data respectively. Eight gene pyramid groups were developed and evaluated against ALS and ANT. The gene pyramid group means were significantly different from each other (p<0.01) of which, Phg1+phg2+co14+cbb qtl and Phg-1+co-14+cbb QTL exhibited the lowest mean disease score to the three pathogens indicating both a high degree and a broad spectrum of resistance. The study identified three isolines with all four desirable genes. In general, pyramiding multiple genes for durable resistance using MAS in combination with phenotypic selection is invaluable for breeding program.
A Study Of Motivation In Business Start-Ups Among Malay Entrepreneurs

The effect of entrepreneurships in developing economies was studied widely in prior researches, since entrepreneurs contribute significantly in economics development. The purpose of this study is to explore and understand Malay entrepreneurs in the eastern region of Peninsular Malaysia; who are the majority ethnic group in the area. The study is concentrated on the motivation factors that influenced their decision to start up new businesses. This study also examined problems faced by those entrepreneurs, both during start up stage and during present operation. Basic variables on entrepreneurs’ background and their business characteristics were taken into account. The motivational factors were examined using a modified model from Scheinberg and MacMillan. The primary data collections methods were structured interviews and surveys. “Statistical Package for the Social Science” (SPSS) was used in analyzing the data. Frequency and descriptive analysis were used to examine the basic variables and problems facing the entrepreneurs. Factor analysis was applied to determine the motivation factors. In addition, ANOVA and MANOVA were used to test the hypotheses developed. The study shows that majority of Malay entrepreneurs are male. One third of the entrepreneurs are well educated up to the tertiary level. Almost all of them are married and has worked in three different fields prior to starting their own business. They were involved in operating small business for others, worked as Government servants or in private firms. A majority of their parents operate their own business. Major problems in conducting business lies in stiff competition from others and also insufficient initial capital. Seven motivational factors were determined to have influenced Malay entrepreneurs to start up business. The most influential factors are spiritual liability, personal development and satisfaction, and financial security. Other important factors are opportunities, freedom, accommodation and escapism. Meanwhile, five hypotheses were developed for this study. The result shows that the level of education of entrepreneurs is significant with reference to the motivational factors. On the other hand, gender, previous work and parents’ occupation are of no significance. However, combination of gender and level of education showed certain level of significance with reference to their motivational factors.
PROFIL TINGGI BADAN, DAYA LEDAK (POWER) OTOT TUNGKAI, KELINCAHAN (AGILITY)DAN DAYA TAHAN (ENDURANCE) ATLET BULUTANGKISPB SURYA BAJA SURABAYAUSIA 12-16 TAHUN

PB Surya Baja Surabaya is an achievers badminton club for the past three years. So the researchers wanted toexamine the physical condition supporting factors of badminton athletes. The purpose of this research is, 1. To findempirical information about the heights profile of the PB Surya Baja Surabaya Badminton Athletes Aged 12-16 Years,2. To find empirical information about the legs muscles explosive power profile of PB Surya Baja Surabaya BadmintonAthletes Aged 12-16 Years, 3. To find empirical information about the agility profile of the PB Surya Baja SurabayaBadminton Athletes Aged 12-16 Years, 4. To find empirical information about the resistance profile of the PB SuryaBaja Surabaya Badminton Athletes Aged 12-16 Years, 5. To find out the achievements profile of the PB Surya BajaSurabaya Badminton Athletes Aged 12-16 Years. This study only focused on the aspect of leg muscle explosive power,agility, endurance, and height of PB Surya Baja Surabaya Badminton Athletes Aged 12-16 Years.This research is descriptive quantitative study with sample amount by 40 athletes. Data analysis techniqueused is a quantitative analysis. The results obtained from 40 athletes PB Surya Baja Surabaya aged 12-16 years, heightmeasurement obtained from the mean value of 1.585 m with a range of 1.30 m to 1.72 m, body mass measurementsobtained from the mean value of 47.875 kg with a range of 31 kg to 72 kg, height jump obtained from the mean value0.529 m with a range of 0.30 m to 0.65 m, leg muscle explosive power measurements obtained from the mean value of910.413 watts, with a range of 519.222 watts to 1782.568 watts, agility measurement obtained mean value of 59.850points, with a range of 55 points to 65 points, the measurement of endurance mean values obtained 38.865 ml/kg/minwith a range of 30.6 ml/kg/min to 49 ml/kg/min.The conclusion of this study is 1. Height the highest athlete is 1.72 m, height the shortest athletes is 1.30 m andthe mean height 1.585 m, 2. The test results of measurement of legs muscles explosive power including in the categoriesabove average, based on the value of Mean 910.413 watts, 3. The results of the test agility belongs to the categorybelow average, based on the mean value of 59.850 points, 4. Durability test results are included in the category ofaverage, based on the mean value of 38.865 ml/kg/min, 5. PB Surya Baja Surabaya in reaching achievement, it isevident that the PB Surya Baja Surabaya has gained 43 medals over the past three years.Keywords : Badminton, Height, leg muscle explosive power, agility, Endurance, PB Surya Baja SurabayaBadminton Athletes Age 12-16 Years
Tuning laser output characteristics of a pyrotechnically pumped free-running Nd:YAG laser in terms of pumping kinetics

Using light radiation directly produced by combustion of some pyrotechnics as pumping sources of solid state lasers is a potentially effective way to obtain compact and high energy lasers. Kinetics of this kind of pumping is studied in terms of pulse energy and pulse time characteristics as well as laser output energy. Pumping kinetics is turned through changing fabrication methods of the pumping modules. It was found that the useful light energy and pulse time for the pyrotechnic pumping light showed opposite changing trend. Compressing pulse duration from 45 ms to about 10 ms would simultaneously cause 20%~ 50% decreases in useful light radiation energy. However, the laser output energy produced by these pumping sources only had a variation 9%, ranging from 427 mJ to 468 mJ. Reasons were related to the decrease in fluorescence loss in pumping energy below the threshold for the pyrotechnic modules having shorter pulse duration but higher radiation power.
Design of an Optical Cavity for Generating Intense THz Pulse Based on Coherent Cherenkov Radiation

We have been studying terahertz (THz) generation via Cherenkov radiation with high quality electron beams from a photocathode rf (radio frequency) gun. In our early studies, we have succeeded in the generation of coherent Cherenkov radiation by controlling the tilt of the electron beam using an rf-deflector. For further enhancement, we are planning to stack the THz pulses in an optical cavity. Multibunch operation of the rf-gun will generate electron beams with a repetition rate of 119 MHz, and THz pulses as well. These pulses will be accumulated in the cavity up to 150 pulses. In this conference, we report the design study of the enhancement cavity and discuss the performance of the THz source.
Application of the extended CFO added method to overhead distribution configurations

The authors use a predictive procedure called the extended lightning critical flashover (CFO) added method to estimate the lightning insulation strength of four distribution configurations. The extended CFO added method is intended to provide the designer with relative trends in lightning insulation strengths of distribution structures so that the engineer can quickly compare designs and make appropriate tradeoffs. The entire calculation process is demonstrated in an example. Laboratory measurements, quantifying the lightning insulation strength, were performed on each of the configurations. These measured results are presented for comparison to the predicted values. >
STUDY OF MAKING POLYESTER RESIN MATRIX COMPOSITES USING BASALT SCORIA POWDER FILLERS TO TENSILE STRENGTH AND COMPRESSIVE STRENGTH

An experimental study on the manufacture of polyester resin matrix composites using basalt powder as a reinforcing filler has been carried out. Basalt is a volcanic igneous rock often found in East Lampung and has not been utilised. Basalt is chosen as a reinforcing filler because basalt has advantages such as wear resistance, corrosion resistance, resistance to chemical reactions, and high hardness. The research parameters used were variations in the size of the basalt powder, the composition of the polyester resin matrix to the basalt powder, and the percentage of the catalyst. All parameters were mixed according to the research procedure, and all samples were formed under pressure 20 kN. Tensile test results showed the highest value of 0.961 kgf/mm2 from 60 mesh-25% polyester-1/30 catalyst variation parameter. The highest compressive strength value of 28.331 kgf/mm2 was obtained from the various parameters of 270 mesh-20% polyester-1/20 catalyst and 270 mesh-25% polyester-1/30 catalyst. The results were not much different from those, which is 27.787 kgf/mm2. The use of 1/30 hardener catalyst to the amount of polymer by 25 %wt gives optimal results on the characterisation material testing. However, the effect of the filler grain size gave different results for each test carried out. Therefore, to obtain the desired mechanical properties when using basalt rock powder as a filler, it is necessary to pay attention to the correct grain size.
Enhancing Efficiency of Multi-Objective Neural-Network-Assisted Nonlinear Dynamics Lattice Optimization via 1-D Aperture Objectives & Objective Focusing

Mutli-objective optimizers such as multi-objective ge-netic algorithm (MOGA) have been quite popular in discovering desirable lattice solutions for accelerators. However, even these successful algorithms can become ineffective as the dimension and range of the search space increase due to exponential growth in the amount of exploration required to find global optima. This difficulty is even more exacerbated by the resource-intensive and time-consuming tendency for the evaluations of nonlinear beam dynamics. Lately the use of surrogate models based on neural network has been drawing attention to alleviate this problem. Following this trend, to further enhance the efficiency of nonlinear lattice optimization for storage rings, we pro-pose to replace typically used objectives with those that are less time-consuming and to focus on a single objective constructed from multiple objectives, which can maximize utilization of the trained models through local optimization and objective gradient extraction. We demonstrate these enhancements using a NSLS-II upgrade lattice candidate as an example.
Study on the Balance Control Method of Instantaneous Power for the Converter in the DFIG

For the operating safety of the integrated doubly-fed induction generator (DFIG), this paper proposes an instantaneous power balance control method for the converter. It bases on the optimal rotor current control. A simulation model is built in PSCAD/ EMTDC for analyzing the integration stability of the integrated doubly-fed induction generator system when the power grid voltage drop fault is occurring, and the simulation data verified the correctness and effectiveness of the converter control strategy.