Karakteristik Pengeringan Bawang Merah (Alium Ascalonicum. L) Menggunakan Alat Pengering ERK (Greenhouse)

Aim of this research was to determine drying rate and moisture content changes on Greenhouse (ERK) Dryer. Result was showed using graphic by analyzing drying rate characteristics of Greenhouse Dryer. Data analysis was performed using mathematical approach that solved using Microsoft Excel. Method used in this research was experimental method. Based on the results, onion drying using ERK showed decreasing rate of weight changes. Sample shrinkage was 25.7% with average moisture content 60.06% for sample weight 0.187 kg. Average humidity (RH) was lower than ambient humidity on the range of 63.4% to 83.0%. Characteristics of onion drying was the decreasing rate of moisture content of 0.17% with equation MR: y = -0,017 + 1,061, R2 is 0,985. Value of Ln MR at first day was y = -0,019x and decreasing rate of moisture content 0,19%. Whereas decreasing rate at second, third and fourth day were 0,008%, 0,11% and 0,002% respectively for 1 hour interval period. Keywords: red onion, Greenhouse effect, drying rate, dryer &nbsp

Uji Performansi Rice Transplanter Tipe Walking Model Pf48 (2 Zs-4a) di Desa Tanjung Kecamatan Tanjung Kabupaten Lombok Utara-NTB

  Dalam meningkatkan kinerja pekerja dan hasil panen khususnya padi, pemerintah memberikan teknologi pertanian berupa mesin rice transplanter kepada kelompok tani di Desa Tanjung, Kecamatan Tanjung, Kabupaten Lombok Utara. Mesin rice transplanter merupakan mesin yang digunakan untuk menanam padi secara merata. Pada penelitian ini dilakukan uji performansi mesin rice transplanter tipe walking model PF48 (2 ZS-4A) pada lahan persawahan di Desa Tanjung Kecamatan Tanjung Kabupaten Lombok Utara dengan tujuan untuk melakukan uji performansi mesin rice transplanter serta mengetahui efektivitas dan efisiensi mesin rice transplanter terhadap berbagai luas petakan sawah dan sistem tanam. Metode yang digunakan adalah eksperimental dengan penelitian dilakukan dilapangan. Parameter penelitian dari kondisi lahan saat penanaman, keadaan hasil tanam, jarak baris tanam, jumlah rumpun per lubang, kedalaman tanam, total waktu tanam, kecepatan maju alat, kapasitas lapang efektif, kapasitas lapang teoritis dan efisiensi lapang. Analisis data pada penelitian ini adalah pengukuran dari awal pengoperasian mesin rice transplanter pada luasan yang berbeda, yaitu terkecil (400 m2), sedang (700 m2) dan terbesar (1.000 m2) serta penggunaan sistem tanam yang berbeda (memanjang dan memendek) pada setiap petakan. Pada penelitian ini, dari segi luasan, efisiensi lapang pada petakan terbesar (1.000 m2) lebih efisien (83%) dibandingkan dengan petakan lainnya. Sedangkan, efisiensi lapang berdasarkan sistem tanam lebih efisien dengan menggunakan sistem memanjang dibandingkan dengan sistem memendek. Di mana efisiensi lapang yang didapatkan pada sistem memanjang di atas 50%, yaitu 68% untuk luasan terkecil, 75% untuk luasan sedang, dan 83% untuk luasan terbesar. Sedangkan pada sistem memendek, didapatkan efisiensi 24% untuk luasan terkecil, 35% untuk luasan sedang dan 45% untuk luasan terbesar. Kata kunci: efektivitas, efisiensi, rice transplanter, sistem tanam, tanaman pad

Gaseous optical contamination of the spacecraft environment: A review

Interactions between the ambient atmosphere and orbiting spacecraft, sounding rockets, and suborbital vehicles, and with their effluents, give rise to optical (extreme UV to LWIR) foreground radiation which constitutes noise that raises the detection threshold for terrestrial and celestial radiations, as well as military targets. Researchers review the current information on the on-orbit optical contamination. Its source species are created in interaction processes that can be grouped into three categories: (1) Reactions in the gas phase between the ambient atmosphere and desorbates and exhaust; (2) Reactions catalyzed by exposed ram surfaces, which occur spontaneously even in the absence of active material releases from the vehicles; and (3) Erosive excitative reactions with exposed bulk (organic) materials, which have recently been identified in the laboratory though not as yet observed on spacecraft. Researchers also assess the effect of optical pumping by earthshine and sunlight of both reaction products and effluents

Mapping exercise of mental health research and researchers in Pakistan

OBJECTIVE: To systematically identify mental health research and researchers in Pakistan. Subsidiary objectives were to identify methodologies of studies published in the indexed journals along with their country wide mean impact factor. METHODS: A systematic search strategy using key words related to neuropsychiatry was carried out to identify various studies published in Indexed and Non-indexed databases. RESULTS: We identified 108 studies from Indexed data bases (77.8% Medline; 22.2% PsychInfo). Beside these, 51 studies were also identified from non-indexed databases. Among the indexed articles, 97 (89.8%) were Journal articles while 10 were other type of documents--there were 3 clinical trials of which only one was a randomized controlled trial. The mean Impact Factor (IF) of these studies was 2.75 (Range; 2.21-3.29). The median IF was 2.90. The most preferred journal for publication was the Journal of Pakistan Medical Association (JPMA; N = 33) followed by British Journal of Psychiatry (B J Psych; N = 11) and Journal of College of Physicians and Surgeons, Pakistan (JCPSP; N = 9). From the indexed and non-indexed publications we identified 43 researchers. Among these 34 (80%) were psychiatrists. CONCLUSION: The key finding of this mental health research mapping exercise is that mental health research output from Pakistan is low both in numbers and quality, with very few studies making it to high impact international journals. There is an urgent need to strengthen research capacity in areas of mental health at individual, organizational and macro-system levels

NanoUPLC-MSE proteomic data assessment of soybean seeds using the Uniprot database.

Background: Recombinant DNA technology has been extensively employed to generate a variety of products from genetically modified organisms (GMOs) over the last decade, and the development of technologies capable of analyzing these products is crucial to understanding gene expression patterns. Liquid chromatography coupled with mass spectrometry is a powerful tool for analyzing protein contents and possible expression modifications in GMOs. Specifically, the NanoUPLC-MSE technique provides rapid protein analyses of complex mixtures with supported steps for high sample throughput, identification and quantization using low sample quantities with outstanding repeatability. Here, we present an assessment of the peptide and protein identification and quantification of soybean seed EMBRAPA BR16 cultivar contents using NanoUPLC-MSE and provide a comparison to the theoretical tryptic digestion of soybean sequences from Uniprot database. Results: The NanoUPLC-MSE peptide analysis resulted in 3,400 identified peptides, 58% of which were identified to have no miscleavages. The experiment revealed that 13% of the peptides underwent in-source fragmentation, and 82% of the peptides were identified with a mass measurement accuracy of less than 5 ppm. More than 75% of the identified proteins have at least 10 matched peptides, 88% of the identified proteins have greater than 30% of coverage, and 87% of the identified proteins occur in all four replicates. 78% of the identified proteins correspond to all glycinin and betaconglycinin chains. The theoretical Uniprot peptide database has 723,749 entries, and 548,336 peptides have molecular weights of greater than 500 Da. Seed proteins represent 0.86% of the protein database entries. At the peptide level, trypsin-digested seed proteins represent only 0.3% of the theoretical Uniprot peptide database. A total of 22% of all database peptides have a pI value of less than 5, and 25% of them have a pI value between 5 and 8. Based on the detection range of typical NanoUPLC-MSE experiments, i.e., 500 to 5000 Da, 64 proteins will not be identified. Conclusions: NanoUPLC-MSE experiments provide good protein coverage within a peptide error of 5 ppm and a wide MW detection range from 500 to 5000 Da. A second digestion enzyme should be used depending on the tissue or proteins to be analyzed. In the case of seed tissue, trypsin protein digestion results offer good databank coverage. The Uniprot database has many duplicate entries that may result in false protein homolog associations when using NanoUPLC-MSE analysis. The proteomic profile of the EMBRAPA BR-16 seed lacks certain described proteins relative to the profiles of transgenic soybeans reported in other works

Bandwidth enhancement of rectangular dielectric resonator antenna using circular slot coupled technique

This article presents a technique to enhance the bandwidth of a rectangular dielectric resonator antenna using a circular slot. The structures are designed and simulated using CST Microwave Studio software, and it is found that the circular slot exhibits a bandwidth of 36.44% (0.92-1.33 GHz). The circular slot is compared with the rectangular slot. It is shown that the rectangular slot produces a bandwidth of 6.39% (1.06-1.13 GHz). Both structures exhibit similar radiation patterns with slightly different gains at 3.10 and 3.25 dBi. The bandwidth is enhanced more than five times using the circular slot, compared to the rectangular slot

Regression Analysis on Experience Based Factory Model for Software Development Process

Software organizations are still struggling to reuse the best of their knowledge and experiences in future projects. Often, when there are changes on employee re-assignment, a lot of time and effort are spent for knowledge transfer activities. This however may not assure that all knowledge and experiences are well transferred and shared; some could be missing or misplaced. In this study, a model has been proposed for managing knowledge and experiences based on experience factory approach to provide a more efficient and effective experience management for software development community. Experience Factory is an infrastructure that aims for reuse of products, processes and experiences gained during a system life cycle. A set of components have been identified as the predictors of the model which eventually forms the two main organizations: project organization and experience factory organization. This study further has gone through a correlational survey research to verify the relationship between the identified predictors towards the experience factory goals. Reliability analysis has been conducted to validate the measures, while correlation and regression analyses have been carried out to examine the relationship between the constructs and the goals. Results reveal that reliability of the model is high and construct validity is satisfactory. Experience factory organization is found having more positively significant towards experience goals as compared to project organization; however, there is no significant impact towards the model due to inexistence of causal relation

Investigation of Consumer Intention toward Online Shopping During Covid-19 Pandemic

This study aims to explore the factors affecting the consumer intention toward online shopping during the Covid-19 pandemic, by examining 8 factors, the Perceived Lack of Alternatives, Perceived External Pressure, and Perceived Controlled Behavior on consumer Intention, and Perceived Usefulness, Perceived Ease of Use, Perceived Risk and Subjective Norm on consumer intention with a mediating effect of consumer Attitude. Online questionnaire had been built to evaluate all variables in the conceptual model, and snowball sampling technique had been applied. A total of 817 participants has responded to the questionnaire, all from Jordan with a mix of different educational backgrounds, ages, gender, marital status and financial income. Confirmatory factor analysis, multi-regression and path analysis was run using AMOS 26.0, and frequencies statistics has been done using SPSS 26.0. This study data analysis revealed that Perceived Lack of Alternatives and Perceived External Pressure has no significant impact on consumer intention, whereas Perceived controlled behavior found to have a significant influence on consumer intention. The results also revealed that Perceived Usefulness, Perceived Ease of Use, Perceived Risk and Subjective Norm has significant influence on consumer intention with a mediating effect of consumer Attitude. Understanding consumer behavior during Covid-19 could reveal insights for customers’ intention toward online shopping after the pandemic. This research has developed an integrated model to show the factors that determine the customers’ intention for online shopping. These factors can help the retailers to adopt the new norm of life after the Covid-19 pandemic and allocate investments to transform their traditional business models and switch to online shopping platforms