3,658 research outputs found
Penghawaan Alami pada Unit dan Koridor Rusunami The Jarrdin
Vertical housing is one alternative solutions in solving the problem of settlements. Flats intended for middle class people down, then the operating costs of the building should cost without ignoring occupant comfort factor that is by optimizing natural air flow on the building. Vertical housing is used as a case study is Rusunami The Jarrdin on the part of the dwelling units and corridors. The purpose of this research is to know the level of thermal comfort by analyzing natural air flow system on the unit and the corridor rusunami The Jarrdin. The method used is quantitative method by measuring the air flow rate using the tool anemometer at 2 locations dwelling units and different corridors. Unit A2033 (+ 55 m) oriented towards the outside of the building while the unit A1129 (+ 35 m) oriented to face the other side of the building that contained the pool below. While the corridor section is done in two points in the section near the openings and the section between the two residential units. Every measurement at one point two times the area of the study conducted measurements at different times. Results of the analysis showed that the natural penghawaan on rusunami The Jarrdin not very optimal. The natural air flow would be optimal if the requirements of an ideal system of cross ventilation openings adapted to the design of the building Rusunami The Jarrdin
Modelling of the Outdoor and Indoor Parameters Affecting the Thermal Performance of a Trombe Wall with Different Spaces
Passive solar technologies (PSTs) can have several positive effects on the environment and future energy-efficient when incorporated into building design and urban planning. A Trombe wall (TW) is a type of passive solar heating system that is used in building design and architecture to collect and store solar heat for later use in heating a structure. Moreover, TW plays an important role in the reduction of a building\u27s cooling load. This paper uses a CFD ANSYS model to conduct a 3D numerical analysis of a TW to investigate the outdoor and indoor parameters that affect the TW. Additionally, the ideal distance between the ground floor and TW is identified
Modelling of the Outdoor and Indoor Parameters Affecting the Thermal Performance of a Trombe Wall with Different Spaces
Passive solar technologies (PSTs) can have several positive effects on the environment and future energy-efficient when incorporated into building design and urban planning. A Trombe wall (TW) is a type of passive solar heating system that is used in building design and architecture to collect and store solar heat for later use in heating a structure. Moreover, TW plays an important role in the reduction of a building\u27s cooling load. This paper uses a CFD ANSYS model to conduct a 3D numerical analysis of a TW to investigate the outdoor and indoor parameters that affect the TW. Additionally, the ideal distance between the ground floor and TW is identified
Temperature and water level measurement of liquid in a tank using fiber Bragg Grating
In this work, measurement of temperature and liquid level were performed simultaneously using fiber Bragg grating (FBG) sensors. A multi-channel Fibre Interrogator with built-in ASE laser source operating around 1552 to 1568 nm was employed to record a shift in Bragg wavelength due to contribution from both temperature and hydrostatic pressure of liquid weight in the tank. Results show a linear response between liquid level and temperature readings against the shift in Bragg wavelength for liquid level up to 85 cm in height and the temperature range of 27 to 77 ºC. The sensitivity of the sensor head for water level measurement is 10.57 pmcm-1, while the sensitivity for temperature measurement is 11.28 pm/ºC respectively
Fluorescence spectroscopy for analysing deterioration of palm olein in batch deep-fat frying
Palm olein has been commercially used as frying medium in batch deep-fat frying. During frying, the oil usually deteriorates due to the exposure to high temperature. In this study, a fluorescence spectroscopy technique was applied to monitor the deterioration of refined, bleached, and deodorized palm olein (RBDPO) in batch deep-fat frying. 22.5 kg of French fries were used as the frying material. In 30 batches, the french fries were intermittently fried at 185 ± 5°C for eight hours a day over five consecutive days capturing 40 hours. The fluorescence intensity of the RBDPO was recorded with excitation at 390 nm and resulting emission of 465 nm. The fluorescence intensity of the RBDPO over five days of frying decreased considering the wavelength range of emission 430-640 nm and excitation 360-430 nm. The decreased in intensity of fluorescence emission and excitation spectra were inversely correlated with the FFA content of the oil samples. This study demonstrates the potential of fluorescence spectroscopy in monitoring the deterioration of RBDPO during batch deep-fat frying
Analisis Jenis Jenis Dan Penyebab Kekerasan Seksual Di Lingkungan Kampus
Kekerasan seksual di kampus merupakan masalah serius yang terjadi di berbagai negara, termasuk Indonesia. Jenis-jenis kekerasan seksual di kampus meliputi pelecehan verbal, fisik, dan non-fisik. Pelecehan verbal meliputi kata-kata kasar atau merendahkan, tekanan untuk melakukan hubungan seksual, dan komentar seksual yang tidak diinginkan. Pelecehan fisik meliputi sentuhan, ciuman, atau aksi yang lebih serius seperti pemerkosaan. Penyebab kekerasan seksual di kampus diantaranya seperti kesenjangan kekuasaan antara pelaku dan korban. Selain itu, faktor lingkungan seperti kurangnya pencahayaan atau pengawasan di area kampus tertentu juga dapat meningkatkan risiko kekerasan seksual. pendidikan yang kurang efektif tentang seksualitas, dan norma sosial yang membenarkan kekerasan seksual. Dari pemermasalahan diatas Kampus perlu menerapkan kebijakan dan program yang efektif untuk mengurangi kekerasan seksual di kampus. Program tersebut meliputi pendidikan seksualitas yang terintegrasi, pelatihan untuk mengekspresikan diri dengan tepat dan menerima penolakan, serta tindakan pencegahan lainnya seperti peningkatan keamanan dan pengawasan di area kampus tertentu. Tindakan pencegahan yang efektif dapat membantu mencegah kekerasan seksual di kampus dan menciptakan lingkungan kampus yang lebih aman dan sehat bagi semua orang
Modified EDF Goodness of Fit Tests for Logistic Distribution under SRS and RSS
Modified forms of goodness of fit tests are presented for the logistic distribution using statistics based on the empirical distribution function (EDF). A method to improve the power of the modified EDF goodness of fit tests is introduced based on Ranked Set sampling (RSS). Data are collected via the Ranked Set Sampling (RSS) technique (McIntyre, 1952). Critical values for the logistic distribution with unknown parameters are provided and the powers of the tests are given for a number of alternative distributions. A simulation study is presented to illustrate the power of the new method
Synthesis of Diarylpyrazoles Containing a Phenylsulphone or Carbonitrile Moiety and their Chalcones as Possible Anti-Inflammatory Agents
A series of chalcone-based diarylpyrazoles containing a phenylsulphone or carbonitrile moiety was synthesized. Thus, 3-acetylpyrazoles 6a–c and 10a–c were used as useful substrates in facile synthesis of functional pyrazoles 7a–f and 11a–f, respectively. The anti-inflammatory activity and ulcerogenic effect were evaluated and some of the obtained products possessed a significant anti-inflammatory activity. 1-[1-(3-Methylphenyl)-5-phenyl-4-(phenylsulfonyl)-1H-pyrazol-3-yl]ethanone (6b) showed a high activity when compared with indomethacin as reference drug with lower gastrointestinal (GI) profile. Furthermore, molecular docking studies were performed in order to rationalize the obtained biological results
Energy and rice quality aspects during drying of freshly harvested paddy with industrial inclined bed dryer
The performance evaluation of any industrial dryer regarding energy consumption and product quality should be assessed to check its present status and to suggest for further efficient operation. An investigation was carried out to evaluate the impact of drying temperature and air flow on energy consumption and quality of rice during paddy drying with industrial inclined bed dryer (IBD) with average holding capacity of 15 ton in the selected complexes of Padiberas Nasional Berhad (BERNAS)-the national paddy custodian of Malaysia. In reducing paddy moisture content (mc) from 22% to 23% wet basis (wb) down to around 12.5% wb, the final mc, the specific electrical (in terms of primary energy) and the specific thermal energy consumption were found to be varied between 1.44 to 1.95 MJ/kg water evaporated and 2.77 to 3.47 MJ/kg water evaporated, respectively. Analysis revealed that the specific electrical energy consumption was around 20% lesser and the specific thermal energy consumption of IBDs was around 10% higher during drying with air temperature of 41–42 °C than drying with 38–39 °C in reducing paddy mc from 22% to 23% (wb) down to around 12.5% (wb). However, paddy being with almost same initial mc dried using drying temperature of 38–39 °C, IBDs yielded 1–4% higher head rice yield while milling recovery and whiteness were comparable at acceptable milling degree and transparency. The bed air flows between 0.27 and 0.29 m3 m−2 s−1 resulted in higher head rice yield slightly while its effect on drying time was not prominent so much. For paddy with initial moisture content below 23% wb, it is recommended that drying air temperature should not be higher than 39 °C in order to maintain rice quality at reasonable energy consumption
Dexmedetomidine as an adjuvant to bupivacaine in ultrasound fascia iliaca compartment block in proximal end femur surgeries
Background: Fracture neck femur is a common cause of hospital admission among the elderly population. Many patients admitted with fracture femur have long-standing cardiac, hepatic or renal problems. This makes a challenge to balance adequate analgesia with side effects of opioids. Fascia iliaca compartment block (FICB) is one of the peripheral nerve block techniques. It became widely used in providing postoperative analgesia for patient with fracture neck femur either in emergency department or in the operating room.Objective: To evaluate the efficacy of addition of dexmedetomidine to bupivacaine on the duration and quality of postoperative analgesia in ultrasound guided fascia iliaca compartment block in proximal end femur surgeries.Patients and methods: Sixty patients with American Society of Anesthesiologists (ASA) physical status I - II of both sexes aged from 20-60 years scheduled for proximal end femur surgeries. They were randomly assigned to one of two equal groups (n=30 each), using closed envelope technique: Bupivacaine group (B group), and Bupivacaine + dexmedetomidine (BD group). Result: Our study demonstrated prolongation of postoperative analgesia in bupivacaine-dexmedetomidine group (BD) compared to bupivacaine group (B). It showed statistically significant reduction in cumulative pethidine doses and prolongation in the time till first rescue analgesic is required in the BD group in comparison with the B group in the first 24 hours. Hemodynamic changes and incidence of side effects, were statistically insignificant among the two groups. Conclusion: Addition of dexmedetomidine, as an adjuvant to the local anesthetic bupivacaine, in ultrasound fascia iliaca compartment block provides prolongation of the duration of postoperative analgesia with less opioid consumption without remarkable side effects
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