scholarly journals RANCANG BANGUN LEMARI PENGERING DAUN MARUNGGA (Moringa Oleifera)

2020 ◽  
Vol 5 (2) ◽  
pp. 96-99
Author(s):  
Ben Vasco Tarigan ◽  
Jefri S. Bale ◽  
Matheus M. Dwinanto ◽  
Muhamad Jafri ◽  
Daud P. Mangesa ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Moringa Oleifera ◽  
Nutritional Supplements ◽  
Drying Process ◽  
Long Time

Abstrak Pohon Marungga merupakan salah satu tumbuhan yang memiliki manfaat yang besar. Untuk daunnya sendiri dapat dijakdikan menjadi suplemen gizi dan juga sebagai bahan dasar kosmetik. Daun Marungga sendiri dapat dijadikan bubuk untuk selanjutnya diproses ke dalam berbagai kebutuhan. Sebelum dijadikan bubuk, sebelumnya daun tersebut harus dikeringkan. Pengeringan manual selama ini membutuhkan waktu yang panjang dan tidak higienis. Pada penelitian ini diperoleh hasil, proses pengeringan selama 19 jam diperolehhasil penurunan kelembaban tidak bisa dilakukan secara cepat. Hal ini disebabkan karena temperatur dalam ruangan tidak mampu memanaskan udara sekitar dengan cepat sehingga proses pengeringan cenderung lebih lambat. Dengan beban pengeringan 20 kg daun Marungga mentah, diperoleh sekitar 3 kg daun kering.Kata kunci: marungga; perpindahan panas; lemari Abstract Marungga tree is one of the plants that have great benefits. The leaves themselves can be transformed into nutritional supplements and also as a cosmetic base ingredient. Marungga leaves themselves can be used as a powder for further processing into various needs. Before being made into powder, the leaf must be dried beforehand. Manual drying so far requires a long time and is not hygienic. In this study the results were obtained, the drying process for19 hours obtained the result of humidity reduction could not be done quickly. This is because the temperature in the room is not able to heat the surrounding air quickly so the drying process tends to be slower. With a drying load of 20 kg of raw Marungga leaves, about 3 kg of dried leaves are obtained.Keywords: marungga; heat transfer; cabinets

The Development Of Society Businesses In Concrete Blocks Production With A Single Vibration System In The Pare Sub-District Kediri Regency

2020 ◽  
Vol 1 (1) ◽  
pp. 19-23
Author(s):  
Diah Willis L ◽  
Thomas Priyasmanu ◽  
Wahyu Panji A ◽  
D. H. Praswanto ◽  
E. Y. Setyawan
Keyword(s):  
Community Service ◽  
Production Cost ◽  
Building Construction ◽  
Vibration System ◽  
Current Development ◽  
Drying Process ◽  
Long Time ◽  
Concrete Blocks ◽  
Good Potential ◽  
Main Components

Development in the current development sector has grown rapidly, in this development we can see a good potential to be developed, namely the development of bricks with good quality compared to using red bricks which production takes a long time. Batako is an alternative that can be used in the construction of a building, because currently the price of red brick is quite high because the production cost is quite expensive. Besides, the price of firewood used for cooking red brick is getting difficult. Meanwhile, the demand for brick gradually increased because brick was one of the main components in building construction. So it needs to be developed in making brick blocks because the time is relatively short in the drying process. Therefore the community service team made a brick making machine with a vibration system for compaction and a faster production process in brick making using a machine that has been made, so that it can increase partner income, who previously produced 120 pieces with a manual system using a machine that could produce 500 pieces of brick per day.

A Review of the Therapeutic Benefits of Moringa oleifera in Controlling High Blood Pressure (Hypertension)

2019 ◽  
Vol 5 (3) ◽  
pp. 232-245
Author(s):  
Chuku Okorie ◽  
Kola Ajibesin ◽  
Adekunle Sanyaolu ◽  
Adeena Islam ◽  
Selciya Lamech ◽  
...  
Keyword(s):  
Blood Pressure ◽  
High Blood Pressure ◽  
Moringa Oleifera ◽  
Kidney Diseases ◽  
Treatment Strategies ◽  
Secondary Hypertension ◽  
Therapeutic Benefits ◽  
Northern Regions ◽  
Long Time ◽  
Life Threatening

Moringa oleifera (M. oleifera) is an angiosperm plant that is a member of the Moringaceae family. It is a natural plant that is native to the sub-Himalayan northern regions of India, Bangladesh, Pakistan, and Afghanistan. The plant grows abundantly throughout tropical and subtropical areas of the world. For several centuries, many cultures have utilized various parts of the moringa plant as traditional medicine to treat common illnesses and control life-threatening conditions such as hypertension (HTN), diabetes, hyperlipidemia, inflammation, etc. This article reviewed the current literature on the therapeutic benefits of M. oleifera on hypertension, primarily focusing on identifying the plant’s key components and its roles in hindering the common pathophysiological pathways associated with hypertension. The number of people living with HTN has been predicted to increase to 1.56 billion worldwide by 2025 in spite of the myriads of preventive and treatment strategies available today. Therefore, it would be of great value to explore alternative complementary ways of controlling high blood pressure. HTN is commonly defined as blood pressure equal to or higher than 140/90 mm Hg. HTN itself is not a disease condition and does not elicit specific symptoms, however, if left untreated for a long time, it can lead to complicated cardiovascular diseases such as angina, congestive heart failure, myocardial infarction as well as stroke and chronic kidney diseases. Primary hypertension is diagnosed when there is no known identifiable underlying cause for the onset of the condition. Secondary hypertension is diagnosed when there is evidence of a disease or disorder triggering the onset of the condition. It is apparent that understanding the role of M. oleifera in the management of hypertension would expand the valuable strategies for the control of this condition.

scholarly journals Solving the inverse heat conduction problem using NVLink capable Power architecture

2017 ◽  
Vol 3 ◽  
pp. e138 ◽  
Author(s):  
Sándor Szénási
Keyword(s):  
Heat Transfer ◽  
Data Transfer ◽  
Heat Conduction Problem ◽  
Inverse Heat Conduction Problem ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients ◽  
Inverse Heat Transfer ◽  
Long Time ◽  
History Of ◽  
The Cost

The accurate knowledge of Heat Transfer Coefficients is essential for the design of precise heat transfer operations. The determination of these values requires Inverse Heat Transfer Calculations, which are usually based on heuristic optimisation techniques, like Genetic Algorithms or Particle Swarm Optimisation. The main bottleneck of these heuristics is the high computational demand of the cost function calculation, which is usually based on heat transfer simulations producing the thermal history of the workpiece at given locations. This Direct Heat Transfer Calculation is a well parallelisable process, making it feasible to implement an efficient GPU kernel for this purpose. This paper presents a novel step forward: based on the special requirements of the heuristics solving the inverse problem (executing hundreds of simulations in a parallel fashion at the end of each iteration), it is possible to gain a higher level of parallelism using multiple graphics accelerators. The results show that this implementation (running on 4 GPUs) is about 120 times faster than a traditional CPU implementation using 20 cores. The latest developments of the GPU-based High Power Computations area were also analysed, like the new NVLink connection between the host and the devices, which tries to solve the long time existing data transfer handicap of GPU programming.

scholarly journals Mathematical models to describe the drying process of Moringa oleifera leaves in a convective-air dryer

2021 ◽  
Author(s):  
Kivaandra Dayaa Rao Ramarao ◽  
Zuliana Razali ◽  
Chandran Somasundram
Keyword(s):  
Activation Energy ◽  
Mathematical Models ◽  
Moringa Oleifera ◽  
Effective Diffusivity ◽  
Drying Process ◽  
Constant Rate ◽  
Rate Period ◽  
Moringa Oleifera Leaves ◽  
Air Dryer ◽  
Kinetics Of

Drying kinetics of Malaysian Moringa oleifera leaves was investigated using a convective-air dryer. The drying parameters were: temperature (40, 50, 60, 70 °C), air velocity (1.3 m s<sup>–1</sup>, 1.7 m s<sup>–1</sup>). The drying process took place in the falling rate period and there was an absence of a constant rate period in this experiment. Six mathematical models (Lewis, Henderson and Pabis, Wang and Singh, Peleg, Page, and logarithmic) were selected for the description of drying characteristics of the leaves. The Wang and Singh model was determined as the best model based on the highest overall coefficient determinant (R<sup>2</sup>) and the lowest overall root mean square error (RMSE). The effective diffusivity (D<sub>eff</sub><sub> </sub>) was also calculated which was in the range of 3.98 × 10<sup>–11</sup> m<sup>2</sup> s<sup>–1</sup> to 1.74 × 10<sup>–10</sup> m<sup>2</sup> s<sup>–1. </sup>An Arrhenius relation was constructed to determine the activation energy for the samples in the convective air dryer. The activation energy for M. oleifera leaves was 39.82 kJ mol<sup>–1</sup> and 33.13 kJ mol<sup>–1</sup> at drying velocities of 1.3 m s<sup>–1</sup> and 1.7 m s<sup>–1</sup>, respectively.

scholarly journals Scale-Up Procedure for Primary Drying Process in Lyophilizer by Using the Vial Heat Transfer and the Drying Resistance

2018 ◽  
Vol 66 (11) ◽  
pp. 1048-1056 ◽  
Author(s):  
Hidenori Kawasaki ◽  
Toshinori Shimanouchi ◽  
Masaharu Yamamoto ◽  
Kanako Takahashi ◽  
Yukitaka Kimura
Keyword(s):  
Heat Transfer ◽  
Scale Up ◽  
Drying Process

Study on the Influence of Safety Injection Rate on the Process of SBLOCA

2013 ◽  
Author(s):  
He Hui ◽  
Liang-ming Pan
Keyword(s):  
Heat Transfer ◽  
Analytical Model ◽  
Pressure Vessel ◽  
Nuclear Reactor ◽  
Injection Rate ◽  
Relief Valve ◽  
Flow And Heat Transfer ◽  
Long Time ◽  
Nuclear Reactor Safety ◽  
Relap5 Code

After the nuclear accident of TMI-2, more and more researchers devote to the researches of SBLOCA. It is almost impossible for the large break LOCA depending on the probability of the accident during the reactor life cycle. But it is possible for SBLOCA, such as opening a relief valve for a long time. After reactor shutdown, reactor takes the form of directly safety injection, which has great effects on the flow and heat transfer of the reactor pressure vessel and it has influence on the process of the SBLOCA finally. In present work, an SBLOCA analytical model has been developed with RELAP5 code to analyze special design features at SBLOCA accident. The results are compared with the calculations from Westinghouse NOTRUMP code. This analytical model has also used to analyze the effects of different safety injection rate on the process of accident. The transient variation about some key parameters have been obtained. e.g. the temperature, pressure variations of core, void fraction of core. The results show that the rate of safety injection has significant influence on the process of SBLOCA and the characteristics about the heat transfer of pressure vessel. Different safety injection rates influence the nuclear reactor safety differently.

scholarly journals Clinical Efficacy of Moringa oleifera Lam. Stems Bark in Urinary Tract Infections

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Santosh Kumar Maurya ◽  
Anil Kumar Singh
Keyword(s):  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Large Scale ◽  
Moringa Oleifera ◽  
Stem Bark ◽  
Control Group ◽  
Trial Group ◽  
Long Time ◽  
Trial Drug ◽  
Tract Infections

Objective. Urinary tract infections (UTI) are the most common problem in clinical practice. Usually they are asymptomatic and are commonly present with distressing symptoms like pain and burning sensation on urination. Antibiotics are widely used to treat UTIs; however, they have their own limitations like resistance, reinfection, and relapses. The purpose of the current study was to evaluate the value of Moringa oleifera Lam. stem bark as a potential medicine for UTIs. Study Design. 30 patients with UTI were randomly divided into two groups with 15 patients in each group. Shigru bark was given to patients of the first group (trial group) and modern medicines were prescribed to the other group of patients. At least three follow-ups are taken in both groups at the end of every week of treatment. Results. After treatment 66.67 % were cured, 13.33 % improved, 13.33% patients have no change, and 6.67% relapsed in trial group and in control group 46.67% were cured, 26.66% improved, 6.67% patients have no change, and 20% relapsed. Interpretation and Conclusion. The trial drug is significant in the management of UTI. This study needs to be done on a large scale and for a long time.

Numerical and Experimental Fractal Pore Network Study on Drying of Porous Media: Numerical Simulation

2012 ◽  
Vol 557-559 ◽  
pp. 2167-2170
Author(s):  
Yue Jin Yuan ◽  
Yue Ding Yuan ◽  
Ying Ying Xu ◽  
Ji Xian Dong ◽  
Xiang Dong Liu
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Porous Media ◽  
Pore Network ◽  
Pore Network Model ◽  
Drying Process ◽  
Drying Time ◽  
State Heat ◽  
Steady State Heat Transfer ◽  
Drying Curve

In order to validate the model established in reference [1], a drying experimental study was conducted, and numerical simulation was carried out under the same environmental condition. The experiment and simulation results indicated that the fractal pore network model could explain the drying process of real porous media effectively, the drying curve of fractal models was more consistent with the real drying curve than that of regular models, and its moisture fields well reflected the drying kinetics characteristic of real porous media. There was no correlation between the pore fractal dimension and the drying time, and the simulation result of unsteady-state heat transfer was more consistent with a real drying process than that of steady-state heat transfer for the convective thermal drying.

Experimental Study of Heat Transfer Performance of Polysilicon Slurry Drying Process

2016 ◽  
Vol 37 (12) ◽  
Author(s):  
Xiaojing Wang ◽  
Dongyun Ma ◽  
Yaqian Liu ◽  
Zhimin Wang ◽  
Yangyang Yan ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Heat Transfer Performance ◽  
Transfer Performance ◽  
Drying Process
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