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Journal articles on the topic 'PH level control'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Yasin, Muhammad Naqiuddin Mohamad. "Freshwater pH Level Control and GUI System for Prawn Breeding." International Journal of Advanced Trends in Computer Science and Engineering 9, no. 4 (2020): 5887–93. http://dx.doi.org/10.30534/ijatcse/2020/250942020.

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Rathedi, Maemo, Oduetse Matsebe, and Nonofo M. J. Ditshego. "Performance Evaluation of Hydroponics Control Systems for pH, Temperature, and Water Level Control." International Journal of Engineering Research in Africa 65 (August 8, 2023): 105–16. http://dx.doi.org/10.4028/p-rbt3yu.

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This study evaluates different control algorithms used in a hydroponic farming system to improve the quality of farm produce and resource efficiency. It focuses on three key hydroponic control parameters(potential hydrogen (pH), water level, and temperature control). Mathematical models are derived from the literature to represent hydroponic environments. These models are used for simulation purposes in MATLAB software to implement various control algorithms to evaluate their performance against each other and the system requirements utilizing transient performance parameters. Transient perfor

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3

Yaqin, Nurul, Ahmad Fawaid Zuhri, and Tholib Hariono. "Automatic Control of Hydroponic Plant Ph Levels Using Sensor Sku Sen 0161." NEWTON: Networking and Information Technology 1, no. 3 (2022): 125–31. http://dx.doi.org/10.32764/newton.v1i3.2094.

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The hydroponic method of growing has developed rapidly in recent years because it can save agricultural land. Hydroponic planting systems need to pay more attention to the pH content of the water because water is the main factor for the growth of hydroponic plants. So far, hydroponic owners still use manual methods to monitor Ph levels in the water, measuring PH levels using a PH meter and then giving a solution to lower or increase PH levels according to the measurement results. This activity must be done regularly to maintain plant fertility. This research develops a solution in the form of

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Fathurrahman, T. I. Nasution, H. W. Ningsih, K. Tarigan, and I. H. Pulungan. "Automatic and Realtime Control of pH Level in Water Catfish Cultivation." Journal of Physics: Conference Series 1428 (January 2020): 012055. http://dx.doi.org/10.1088/1742-6596/1428/1/012055.

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Md Zain, Badrul Aisham, Muhammad Farhan Khasim, Salihatun Md Salleh, and Md Saidin Wahab. "Design Concept of Two Tank Reservoirs to Maintain pH Value for Tiger Prawn." Applied Mechanics and Materials 660 (October 2014): 851–56. http://dx.doi.org/10.4028/www.scientific.net/amm.660.851.

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Shrimp culture is the fastest growing sector of the aquaculture industry in Malaysia. In culturing tiger prawn, the pH level needed for water is around 7.0-8.5. Currently, prawn farmer in Malaysia still using a manual method to control the water pH level by adding chemical (Lime), in which, the process required constant monitoring and control by labor. Since the prawns are so sensitive on pH level, an automatic pH control system is required to maintain the water pH automatically and precisely. This research was conducted to design a system that can control and provide feedback on the changes o

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Gunung, I. Nyoman, I. Nengah Ludra Antara, I. Nyoman Sutarna, Kadek Agus Mahabojana D. P., and Made Dika Nugraha. "Simulation Design Of Animal Waste Treatment Installation System Using Water Level Control System." LOGIC : Jurnal Rancang Bangun dan Teknologi 23, no. 1 (2023): 8–15. http://dx.doi.org/10.31940/logic.v23i1.8-15.

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The simulation design of this animal waste treatment plant is a design that applies the sewage treatment plant system which is made to cope with environmental pollution, especially rivers due to indiscriminate disposal of animal waste. Making this animal waste treatment plant provides information to readers or the public about how to design an animal waste treatment plant system and the performance of the sewage treatment system so that people know how to deal with environmental pollution caused by the livestock themselves. The manufacture of this installation system uses data collection metho

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Rachman, Abdillah Ali, and Muhamad Ariandi. "Optimization of Catfish Pond Water pH with PID Control using Outseal PLC." Buletin Ilmiah Sarjana Teknik Elektro 5, no. 3 (2023): 398–406. https://doi.org/10.12928/biste.v5i3.8944.

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The increasing need for national consumption fish every year makes the business of cultivating consumption fish such as catfish increasingly developed. In catfish farming, the pH level factor in water affects the growth and development of catfish. If the pH level is not appropriate, it causes catfish disease and catfish appetite decreases. So it is necessary to control the pH level of water automatically which makes it easy to maintain pH levels in fish ponds using PID control. The system is designed using Outseal which is an Arduino bootloader-based PLC (Progammable Logic Control) which is op

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Zainudin, M. R., H. W. You, K. E. Lee, and A. M. Zahidi. "Quality Control Assessment in the River of Kajang, Selangor, Malaysia." IOP Conference Series: Earth and Environmental Science 1135, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1755-1315/1135/1/012003.

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Abstract This paper investigates the biochemical oxygen demand (BOD) and the pH level along Jelok River, Kajang, Selangor, Malaysia. The BOD and pH level are of major interest as microbial activity. Five water sampling locations along the river have been selected. To test the pH level of each water sample, a pH meter was used. To test the BOD of each water sample, the 5-days BOD test was conducted. Using the collected data, the Pearson’s correlation coefficient between the pH and BOD was calculated. The computed Pearson correlation coefficient is -0.67988, indicating that pH does affect BOD of

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Panjapornpon, Chanin, Patcharapol Chinchalongporn, Santi Bardeeniz, Ratthanita Makkayatorn, and Witchaya Wongpunnawat. "Reinforcement Learning Control with Deep Deterministic Policy Gradient Algorithm for Multivariable pH Process." Processes 10, no. 12 (2022): 2514. http://dx.doi.org/10.3390/pr10122514.

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The pH treatment unit is widely used in various processes, such as wastewater treatment, pharmaceutical manufacturing, and fermentation. It is essential to get the on-specifications product. Thus, controlling pH is key management for accomplishing the manufacturing objective. However, the highly nonlinear pH characteristics of acid–base titration make pH regulation difficult. Applications of artificial intelligence for process control have progressed and gained popularity recently. The development of reinforcement learning (RL) control with a deep deterministic policy gradient (DDPG) algorithm

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10

Abdullah, Abdullah, and Silvy Asri Ramadhani Siregar. "CONTROL SYSTEM OF SWIMMING POOL BASED pH LEVEL, RAINFALL AND LIGHT INTENSITY." FISITEK : Jurnal Ilmu Fisika dan Teknologi 4, no. 1 (2020): 10. http://dx.doi.org/10.30821/fisitek.v4i1.8066.

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11

Ikram Ismail and Siti Ariza Aripin. "The Effect of Low pH Level on Zebrafish (Danio Rerio) Reproductive Performance." Universiti Malaysia Terengganu Journal of Undergraduate Research 2, no. 1 (2020): 15–20. http://dx.doi.org/10.46754/umtjur.v2i1.100.

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Danio rerio or commonly known as zebrafish are a very popular fish among scientists and also a well-known vertebrate model species widely used in research. Zebrafish, are also a popular species among aquarists and have been put in aquariums all around the world as ornamental fish. The acid rain phenomenon has lowered the pH level of the wild habitat of zebrafish by shifting it to a more acidic pH level. This study was carried out to observe the effect of low pH level on the reproductive performance of zebrafish. The zebrafish were quarantined for a week to make sure they were healthy to be use

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12

Fahriza rizky maulana, Fahriza, Yusfrizal, and Mili Alfhi Syari. "Design and Development of Swimming Pool Water pH Level Monitoring System and Automatic Selenoid Valve Control Based on the Internet of Things." Journal of Artificial Intelligence and Engineering Applications (JAIEA) 3, no. 1 (2023): 269–73. http://dx.doi.org/10.59934/jaiea.v3i1.305.

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A device for monitoring the pH level of swimming pool water and an IoT-based automatic solenoid valve control has been specially designed. This system consists of several main components, including a pH sensor that continuously monitors the pH level in swimming pool water. This sensor will be connected to the Esp32 Board microcontroller which has been programmed to retrieve pH data periodically. The collected data will be sent via an internet connection to the cloud platform and can then be accessed via a mobile application to display real-time pH level messages. In addition, this system is al

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13

Grancharova, A., and L. Kostov. "Model Predictive Control of a pH Maintaining System." Information Technologies and Control 11, no. 1 (2013): 14–20. http://dx.doi.org/10.2478/itc-2013-0003.

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Abstract In this paper the problem of optimal regulation of a pH maintaining system is considered, where the outputs are the pH value and the liquid level in the system and the control inputs are the flow rates of the base input flow and the output flow. The optimal regulation problem is formulated as a nonlinear model predictive control problem in the presence of constraints. Two cases are considered: 1) presence of box constraints only on the control inputs and 2) considering also constraints on the rate of change of the inputs.

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Jafrin, Nilima, Nayeema Akter, Shahin Akhter, Md Myenuddin Mozumder, and Sakhawat Mahmud Khan. "Basal Gastric Acid level in Patients of Chronic Kidney Disease." Journal of Bangladesh Society of Physiologist 12, no. 1 (2017): 10–14. http://dx.doi.org/10.3329/jbsp.v12i1.33922.

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Background: Gastrointestinal symptoms are common in patients with chronic kidney disease (CKD). Chronic renal failure is associated with an increased incidence of acid-related gastrointestinal disorders.Objective: To determine the pH level of gastric acid in patients of CKD and to correlate the different stages of CKD with gastric acid status.Methods: This study was carried out in the Department of Physiology and Nephrology, Chittagong Medical College and Hospital during January 2008 to December 2008. Total 87 subjects were included in this study, of them 65 patients of diagnosed case of chron

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15

Chowdhury, Sabarna, and Surjya Kumar Saikia. "Effect of pH and Dissolved Oxygen induced antioxidant activity in the liver of zebrafish, Danio rerio Hamilton, 1822." Journal of Biological Studies 7, no. 2 (2024): 31–42. http://dx.doi.org/10.62400/jbs.v7i2.9125.

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Two aquatic ambient factors, viz. Dissolved Oxygen (DO) and pH were selected for the study on the effect of oxidative stress in the liver of zebrafish. The zebrafish were exposed to four DO saturation levels (20-30%, 40-50%, 60-70% and 80% above) and five pH levels (4.5-5.5, 5.5-6.5, 6.5-7.5, 7.5-8.5 and 8.5-9.5) for different periods (DO, 4h-16h at 4hr interval; pH, 1h-4h at 1 hr interval). The antioxidants studied were catalase, glutathione and superoxide dismutase (SOD). The malondialdehyde (MDA) was assessed as a bioindicator of oxidative stress. Results showed that the fish suffered from

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16

Asteya, W. Dewa, Hermin Istiasih, and Rachmad Santoso. "inovasi Pompa Air Dengan Timer Control." Nusantara of Engineering (NOE) 5, no. 1 (2022): 50–57. http://dx.doi.org/10.29407/noe.v5i1.17584.

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Di Desa Wonocatur, Kecamatan Ngasem, Kabupaten Kediri terdapat beberapa petani ikan lele. Dalam budidaya lele, kestabilan ph air adalah kunci utama sebagai parameter budidaya lele dikatakan baik. Pada budidaya lele kita harus menjaga level ph pada kolam di kisaran 7-8. Oleh karena itu ph air untuk kolam ikan lele yang baik berada di level air netral. Untuk menjaga kestabilan ph air, para petani dalam menyalakan dan mematikan pompa air masih secara manual. Target Fungsional dari inovasi pompa air ini adalah memberikan kemudahan kepada petani ikan lele untuk menyalakan dan mematikan pompa air se

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17

Basheer, Bahija, Nouf Nasser Albaqami, Eman Abdullah Almogble, et al. "Evaluation of Titratable Acidity and pH Level of Different Coffee Drinks- An In-vitro Study." Pakistan Journal of Medical and Health Sciences 16, no. 1 (2022): 767–70. http://dx.doi.org/10.53350/pjmhs22161767.

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Aim: This in-vitro study aims to assess the acidity of coffee drinks with different combinations and evaluate their pH level in relation to the critical pH of dental enamel (5.5) and dentin (6.7). Methodology: All beverages (black coffee, black coffee with milk, Arabic coffee, and Turkish coffee) were mixed according to the manufacturer's instructions with deionized water and cooled down to room temperature (25ºC). The pH of the solutions was compared with that of the control groups, i.e., 0.3% citric acid and distilled water as positive and negative controls, respectively, at 10mins, 30mins,

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18

Vivien, Arief Wardhany, Yuliandoko Herman, Subono, et al. "Fuzzy logic decission maker for automatic feeder and water quality monitoring system." International Journal of Informatics and Communication Technology (IJ-ICT) 10, no. 1 (2021): 37–45. https://doi.org/10.11591/ijict.v10i1.pp37-45.

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Feeding is one of the most important factors in vanammei shrimp culture. Feeding time must be scheduled regulary and it is prohibit from being late. Because it can affect to the development and growth of vanammei shrimp. The Research of monitoring and control system of vanammei shrimp feeding continues to be developed. The development of hardware and software in this study prioritizes monitoring of pH conditions, oxygen levels, and pond temperatures. The measurement results of pH, oxygen levels and pond temperature can be used as decision makers for vanammei shrimp feeding schedules. The decis

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19

Shimizu, Hiroshi, Taiji Mizuguchi, Eiji Tanaka, and Suteaki Shioya. "Nisin Production by a Mixed-Culture System Consisting of Lactococcus lactis andKluyveromyces marxianus." Applied and Environmental Microbiology 65, no. 7 (1999): 3134–41. http://dx.doi.org/10.1128/aem.65.7.3134-3141.1999.

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ABSTRACT To control the pH during antimicrobial peptide (nisin) production by a lactic acid bacterium, Lactococcus lactis subsp.lactis (ATCC11454), a novel method involving neither addition of alkali nor a separation system such as a ceramic membrane filter and electrodialyzer was developed. A mixed culture of L. lactis and Kluyveromyces marxianus, which was isolated from kefir grains, was utilized in the developed system. The interaction between lactate production by L. lactis and its assimilation by K. marxianus was used to control the pH. To utilize the interaction of these microorganisms t

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20

Kurniawan, Lutfi Athanuzul, and Amirullah Amirullah. "Monitoring and Controlling of pH Levels and Plant Nutrition Supplied by Standalone Photovoltaic in a Greenhouse Hydroponic System using Arduino Uno." ELKHA 13, no. 1 (2021): 69. http://dx.doi.org/10.26418/elkha.v13i1.45657.

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This paper aims to implement the prototype model to monitor and control the pH levels and nutrition plant (electrical conductivity-EC) supplied by a standalone photovoltaic (PV) module-connected battery (Lithium-Ion) on the greenhouse hydroponic systems. The pH and EC sensors are connected to the Arduino Uno circuit as a relay control to drive four pumps, i.e. the water flow pump, EC pump, pH up pump, and pH down pump. The greenhouse function to control pests and the impact of environmental non-uniformity caused by variation of wind speed, temperature, or sunlight so that hydroponic plants can

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21

Kustija, Jaja, and Furqon Andika. "Control - Monitoring System Of Oxygen Level, Ph, Temperature And Feeding in Pond Based on Iot." REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat 2, no. 1 (2021): 1–10. http://dx.doi.org/10.26760/rekaelkomika.v2i1.1-10.

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Fish management systems have an important role in fish farming. One aspect of fish management is water quality which includes several things such as temperature, pH, oxygen levels and also feeding. So far, monitoring of water quality and feeding of fish has been done manually. This study aims to design a control-monitoring system for oxygen levels, pH, temperature and automatic feeding based on IoT. The reading data from the sensor and also the RTC will be forwarded by the microcontroller to the server to be displayed to the user. This system is automated with actuators in the form of aerators

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Gu, Yeun-Hwa, Takenori Yamashita, Tota Inoue, Jin-Ho Song, and Ki-Mun Kang. "Cellular and Molecular Level Mechanisms against Electrochemical Cancer Therapy." Journal of Pathogens 2019 (April 14, 2019): 1–11. http://dx.doi.org/10.1155/2019/3431674.

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Electrochemical treatment (ECT) is a promising new way to induce tumor regression by flowing direct current into the cancer tissue. ECT was applied to different kinds of tumors in clinical studies and showed good results. In addition, basic research has almost not been done in the field of evaluation of efficacy, dose-response, and cytotoxicity. Therefore, the objective is to study the cellular mechanism in the antitumor effect of ECT and to contribute data of basic research of ECT. In the cell-level study, tumor cells (Sarcoma-180, Scc-7, Ehrlich Carcinoma) were studied using ICR mice and C3H

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23

Kuang, Xuheng, and John Sansalone. "Cementitious porous pavement in stormwater quality control: pH and alkalinity elevation." Water Science and Technology 63, no. 12 (2011): 2992–98. http://dx.doi.org/10.2166/wst.2011.505.

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A certain level of alkalinity acts as a buffer and maintains the pH value in a stable range in water bodies. With rapid urban development, more and more acidic pollutants flow to watersheds with runoff and drop alkalinity to a very low level and ultimately degrade the water environment. Cementitious porous pavement is an effective tool for stormwater acidic neutralization. When stormwater infiltrates cement porous pavement (CPP) materials, alkalinity and pH will be elevated due to the basic characteristics of cement concrete. The elevated alkalinity will neutralize acids in water bodies and ma

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24

Lazarević, Slavica, Srđan Kosijer, Maja Đanić, et al. "In Vitro Evaluation of Drug–Drug Interaction Between Gliclazide and Antacids at the Absorption Level." Pharmaceuticals 18, no. 5 (2025): 684. https://doi.org/10.3390/ph18050684.

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Background: The antidiabetic drug gliclazide is often taken with antacids due to its gastrointestinal side effects. However, patients rarely report antacid use, making drug–drug interactions a potential cause of therapy failure. Therefore, this study aimed to investigate the in vitro effects of various antacids on gliclazide permeability and to explore the underlying mechanisms. Methods: The permeability of gliclazide alone and in the presence of antacids (sodium bicarbonate, calcium carbonate, aluminum hydroxide, hydrotalcite and calcium carbonate/magnesium carbonate) was investigated using t

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Chaitra, S. S., P. Shobha K., and Prasanna Kumar H. "pH Control in Effluent Treatment Plant using PLC." International Journal of Trend in Scientific Research and Development 2, no. 1 (2017): 896–99. https://doi.org/10.31142/ijtsrd7059.

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In this paper, A few automated processes for a partial automation which can be mostly used in residential areas and industries. It is developed using PLC. It has explained the process of ETP in industries. The process include different parameters like flow, level, pH, DC motor, solenoid valves, pump are controlled by using PLC Allen Bradley Micrologix 820 and simulated by using software CCW Connected Component Workbench . As we know that effluents emitted by industries contains harmful chemicals which could lead to effect on environment and society. So by retreating these effluents could be a

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Al Tahtawi, Adnan Rafi, and Robi Kurniawan. "PH control for deep flow technique hydroponic IoT systems based on fuzzy logic controller." Jurnal Teknologi dan Sistem Komputer 8, no. 4 (2020): 323–29. http://dx.doi.org/10.14710/jtsiskom.2020.13822.

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In hydroponic cultivation sites, pH control is still carried manually by checking the pH level with a pH meter and providing a pH balancing liquid manually. This study aims to design an automatic pH control system in the Deep Flow Technique (DFT) hydroponic system that uses the Internet of Things (IoT) based Fuzzy Logic Controller (FLC). The SKU SEN0161 sensor detects the pH value as FLC inputs in an error value and its changes. These inputs are processed using Mamdani FLC embedded in the Arduino Mega 2560 microcontroller. The FLC produces an output in a pH liquid feeding duration using the pe

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Astija, Rizky Januarista Anggy, Indri Febriani Vita, and MP Alibasyah Lestari. "The effect of soil pH on a carbohydrate level of tomato fruits (Lycopersicum esculentum Mill.) from bobo and Sidera villages." GSC Advanced Research and Reviews 12, no. 1 (2022): 001–4. https://doi.org/10.5281/zenodo.7151240.

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Soil pH has an effect not only on the growth and production of tomatoes but also has an influence on sugar metabolism. How the pH influences a production and the change of the sugar is still unknown. Therefore, this study aims to determine the effect of the soil pH on the carbohydrate content of tomatoes in Bobo and Sidera villages. The method used was quasi-experiment because the researchers did not randomly select tomatoes for the experimental group and the control group, but the researchers used tomato plants in the two villages that have the differences in the pH of the soil. The data obta

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Cheng, Li-Kun, Jian Wang, Qing-Yang Xu, et al. "Strategy for pH control and pH feedback-controlled substrate feeding for high-level production of l-tryptophan by Escherichia coli." World Journal of Microbiology and Biotechnology 29, no. 5 (2013): 883–90. http://dx.doi.org/10.1007/s11274-012-1243-7.

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Prosyannikov, M. Yu, D. A. Voytko, N. V. Anokhin, A. V. Sivkov, O. I. Apolikhin, and A. D. Kaprin. "Complex medicines for correction of urine pH level during urolithiasis metaphylaxis." Experimental and Сlinical Urology 17, no. 2 (2024): 58–66. http://dx.doi.org/10.29188/2222-8543-2024-17-2-58-66.

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Introduction. Urolithiasis is a serious medical, social and economic problem. Over the past decades the world has seen a progressive, approximately 3% per year, increase in its incidence. Urolithiasis occupies a leading position in the structure of urological diseases and has a high recurrence rate in the absence of metaphylaxis. In turn, the effectiveness of properly selected anti-relapse therapy has been proven by many studies and is about 50- 80%. The development of “tools” for rational metaphylaxis represents a potential “growth area” for improving the effectiveness of treatment for patien

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Yuvaraju.M*, Vasanthabalan.V. "DIY SENSOR BASED CONTROL FOR HYDROPONIC GARDENNING." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 5 (2017): 556–61. https://doi.org/10.5281/zenodo.322486.

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Hydroponic is the different planting method followed in agriculture. This method is based on water and does not depend on soil. Here the nutrient is added with water and the plants are grown in water. This method need continuous monitoring for growthing and automatic system used here will fulfill the demand. This automatic system control the water pH level, water temperature, surrounding temperature and humidity. In addition it can be monitored remotely using IOT. The sensors used are pH sensor, Temperature and humidity sensor, water proof temperature sensor.

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Rahmawati, Rahmawati, Siti Amra, Muhammad Kamal, and Arief Mardiyanto. "Desain Kendali Otomatis Prototype Inlet-Outlet Air Limbah KPPL." Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi 11, no. 1 (2025): 56. https://doi.org/10.35308/jmkn.v11i1.11701.

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Wastewater treatment and retention ponds (KPPL) in industry play a crucial role in waste management. Controlling the inlet and outlet valves is essential to maintain flow balance and process efficiency. Currently, the KPPL at PT.X uses a manual method in valve control that relies on visual observation and sampling, which is limited in accuracy and responsiveness. Therefore, it is necessary to design an automatic valve control prototype to improve the performance of the wastewater treatment system at PT. X. This study aims to build an automatic control system that uses level and pH sensors and

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Wang, Yu-Chio, Yen-Po Chen, Cheng-Yu Ho, et al. "The Impact of Gastric Juice pH on the Intraluminal Therapy for Helicobacter pylori Infection." Journal of Clinical Medicine 9, no. 6 (2020): 1852. http://dx.doi.org/10.3390/jcm9061852.

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Background: Helicobacter pylori (H. pylori) can be topically eradicated in stomach lumen on endoscopic examination. The procedures of intraluminal therapy for H. pylori infection (ILTHPI) include the control of intragastric pH, mucolytic irrigation of the gastric mucosal surface, and a single-dose medicament containing antimicrobial agents. Aims: To detect gastric juice pH and evaluate its impact on the success rate of ILTHPI. Methods: We enrolled 324 patients with upper abdominal discomfort for endoscopic examinations. Among them, 13C-urea breath test was positive in 218 patients, where 100 u

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Rahmah, Fitri, Fitria Hidayanti, and Mutma Innah. "Penerapan Smart Sensor untuk Kendali pH dan Level Larutan Nutrisi pada Sistem Hidroponik Tanaman Pakcoy." Jurnal Teknologi Informasi dan Ilmu Komputer 6, no. 5 (2019): 527. http://dx.doi.org/10.25126/jtiik.2019651738.

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<p>Penerapan <em>smart sensor</em> untuk kendali parameter pH dan level larutan nutrisi pada tanaman hidroponik bertujuan untuk memenuhi nutrisi tanaman secara otomatis dan kontinu. Sistem kendali <em>closed loop </em>dirancang untuk mengkondisikan parameter pH pada rentang nilai 6-7, serta parameter level larutan nutrisi pada rentang nilai 18-20 cm. Ketika nilai pH berada di bawah 6, maka aktuator <em>solenoid valve</em> di larutan basa akan terbuka secara otomatis dan mengalir ke larutan nutrisi. Begitu juga ketika nilai pH berada di atas 7 maka <

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Sinaredi, Betadion Rizki, Dimas Prasetianto Wicaksono, Tania Saskianti, et al. "The effect of fractionated ethanol red ginger (Zingiber officinale var. rubrum) extract on the pH level of Streptococcus gordonii metabolism (In-vitro Laboratory Experimental Research)." Bali Medical Journal 13, no. 1 (2024): 909–12. http://dx.doi.org/10.15562/bmj.v13i1.5283.

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Introduction: Oral health is important for the quality of human life, so maintaining oral health is necessary. However, many people have dental caries as one of the main diseases in the oral cavity. Dental caries can occur due to pH falling in the oral cavity by acid-producing bacteria, such as Streptococcus gordonii, which metabolizes sucrose as an energy source and produces lactic acid. Then, the environmental pH decreases. Chemicals are widely used as antibacterial agents, but long-term use can cause negative effects, hence antibacterial agents with minimal side effects are needed. Red ging

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Engr., Maribel S. Abalos, and L. Bejarin Orfel. "Ai-Based pH Level Detector and Neutralizer of Fish Ponds." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 08, no. 01 (2025): 285–92. https://doi.org/10.5281/zenodo.14731356.

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Because of its marketability and nutritional worth, tilapia is a popular and easily bred species, and the Philippines' fisheries industry makes a substantial economic contribution. Nevertheless, a lot of fish business owners view aquaculture as a supplemental source of revenue, which leads to inconsistent feeding and insufficient water quality monitoring. Water's pH, which should be neutral at 7.0, can change for a number of reasons, such as pollution and environmental variables, which can have a negative impact on fish productivity and health. Reduced yields can result from fish stress and in

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St. Nurhayati Jabir, Asyraful Insan Asry, and Rahmat Hidayat. "Water Quality Control and Monitoring at The Patih Drinking Water Depot Based on Nodemcu ESP32." Inspiration: Jurnal Teknologi Informasi dan Komunikasi 14, no. 2 (2024): 1–13. https://doi.org/10.35585/inspir.v14i2.70.

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Manual control and monitoring of water quality remain a significant challenge for managers of drinking water depots, potentially affecting water safety and operational efficiency. To address this, an automated system was developed to fill water tanks and monitor water quality using advanced sensors and a real-time notification system. The solution integrates a Node MCU ESP32 microcontroller, a pH sensor for detecting water acidity, a TDS sensor for dissolved solids, an ultrasonic sensor for water level detection, and a Telegram bot for remote monitoring and notifications. The system activates

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O.I., Akinbami, Ishola Balogun Daud, Abiola S.S, and Aina A.B. "Effect of Untreated and Alkaline Treated Melon Husk Diets on the Hematological Indices and Blood Chemistry of Broilers, Metabolic Trial, and Muscle PH." International Journal of Environmental & Agriculture Research 8, no. 5 (2022): 52–57. https://doi.org/10.5281/zenodo.6596677.

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<strong>Abstract</strong><strong>—</strong> The high cost of feed ingredients is one of the most significant hurdles to livestock production in underdeveloped countries. This study examined the effect of untreated and alkaline treated melon husk diets on the hematological indices and blood chemistry, metabolic trial, and muscle pH of broilers. The five diets contained a control diet of 0% level of inclusion of melon husk, 10% and 20% of untreated melon husk; 10% and 20% level of inclusion of Alkaline treated melon husk as a replacement for maize. The value obtained for the single effect

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William, Kevin, Ikhwan Ruslianto, and Irma Nirmala. "Internet of Things based Control and Monitoring System for Koi Fish Cultivation." CESS (Journal of Computer Engineering, System and Science) 8, no. 1 (2023): 197. http://dx.doi.org/10.24114/cess.v8i1.40886.

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Water quality is an important factor for fish koi cultivation. Poor water quality such as inappropriate temperature, pH, and turbidity can disrupt metabolic processes, inhibit growth and cause death in koi fish. Apart from that, feeding and checking water quality are still done manually. Because of this, we need a system that can monitor and control the feeding, temperature, and water quality according to the living environment of koi fish. In this study the system was built on an Android-based mobile application using the flutter framework. In addition, the system has a notification to provid

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Alewi, Marwa Dhari, and Ahlam Taha Mohammed. "Evaluation of Periodontal Status among Patients with Helicobacter Pylori and Determination of Salivary PH, Flow Rate, and Alkaline Phosphatase Level." AL-Kindy College Medical Journal 20, no. 2 (2024): 130–34. http://dx.doi.org/10.47723/jxnybz47.

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Background: Up to 50% of people worldwide are infected with Helicobacter pylori, a bacterium with a spiral shape and a negative Gram stain. Negative impacts on oral health, including bad breath, dental caries, recurrent aphthous stomatitis, and glossitis, are caused by this particular pathogen. Objective: This study aimed to evaluate the correlation between saliva pH, flow rate, alkaline phosphatase and periodontal status in patients with Helicobacter pylori. Subjects and Methods: From December 2021 to July 2022, a case-control study was undertaken consisting of a group of 80 participants, con

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Jin, Peng, Wenzhu Gu, Yayu Lai, Wei Zheng, Qi Zhou, and Xiaojing Wu. "The Circulating MicroRNA-206 Level Predicts the Severity of Pulmonary Hypertension in Patients with Left Heart Diseases." Cellular Physiology and Biochemistry 41, no. 6 (2017): 2150–60. http://dx.doi.org/10.1159/000475569.

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Background: MicroRNA-206 (miR-206), a muscle-specific miRNA, regulates the growth of cardiac myocytes and pulmonary artery smooth muscle cells. However, it remains unknown whether miR-206 is involved in pulmonary hypertension (PH) due to left heart diseases (PH-LHD). This study was designed to investigate the correlation between miR-206 and PH in patients with LHD. Methods: In 82 consecutively enrolled LHD patients, we examined the serum levels of miR-206 and analyzed its correlations with pulmonary artery systolic pressure (PASP) and cardiac function. Another 36 age- and sex-matched subjects

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Islam, MA, MA Haque, MJ Ferdwsi, MY Ali, and MA Hashem. "Formulation of value added chicken meatball with different level of wheat flour." SAARC Journal of Agriculture 16, no. 1 (2018): 205–13. http://dx.doi.org/10.3329/sja.v16i1.37435.

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The present study was undertaken to evaluate the effect of different levels of wheat flour on the quality characteristics of chicken meatball. Wheat flour which acts as a binding agent of meatball except for control group T1. The meatballs were formulated having 0%, 5%, 10% and 15% wheat flour. The sensory (colour, flavour, texture, juiciness, tenderness, overall acceptability), physicochemical (proximate analysis, pH, cooking loss), biochemical (TBARs, POV, FFA) were analyzed. Treatments were analyzed in a 4×3 factorial experiment in CRD replicated three times per cell. Wheat flour inclusion

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Safira, M. R., M. W. Lim, and W. S. Chua. "Design of control system for water quality monitoring system for hydroponics application." IOP Conference Series: Materials Science and Engineering 1257, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1757-899x/1257/1/012027.

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Abstract In hydroponic farming, optimal pH value is important to regulate nutrient availability for efficient plant growth. This study aims to design an autonomous pH monitoring and control system for maintaining an optimal pH range. The prototype was developed for data acquisition, data processing and data visualization to ensure that the measured nutritional solution parameters are within the specified range: temperature (18–35°C), pH (5.5–8.0), and dissolved oxygen level (>2 ppm). Data collected at sampling rate of 10 seconds utilising temperature sensor, pH sensor, and dissolved oxygen

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Baxendale, F. P., R. C. Shearman, and L. A. Wit. "Annual Northern Marked Chafer Control, 1988." Insecticide and Acaricide Tests 14, no. 1 (1989): 311–12. http://dx.doi.org/10.1093/iat/14.1.311a.

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Abstract On Aug 9, 10 insecticides were applied to 5- by 10-ft Kentucky bluegrass plots located in a golf course rough at Lincoln, Nebr. Topography in the treated area ranged from level to a gentle slope, and the predominant grass species was Kentucky bluegrass (95%). Thatch accumulation (finger compressed) ranged from 0.25-0.5 inches. Field conditions at the time of application were as follows: air temperature, 82°F; soil temperature (3-inch depth), 85°F; soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.7; water pH, 7.0; soil moisture was well below field capacity. Granular f

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Dobler, Carolin Leoni, Britta Krüger, Jana Strahler, et al. "Physical Activity and Mental Health of Patients with Pulmonary Hypertension during the COVID-19 Pandemic." Journal of Clinical Medicine 9, no. 12 (2020): 4023. http://dx.doi.org/10.3390/jcm9124023.

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The aim of the study was to analyze the effect of personal restrictions on physical activity, mental health, stress experience, resilience, and sleep quality in patients with pulmonary hypertension (PH) during the “lockdown” period of the COVID-19 pandemic. In total, 112 PH patients and 52 age-matched healthy control subjects completed a questionnaire on the topics of physical activity, mental health, resilience, and sleep quality. PH patients had significantly lower physical activity, mental health, and sleep quality compared to age-matched healthy controls. Physical activity positively corre

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Kaviyarasu, V., and T. Shobana. "An optimal study on process control mechanics to measure the pH level in hydroponics system." International Journal of Statistics and Applied Mathematics 9, no. 6 (2024): 115–20. https://doi.org/10.22271/maths.2024.v9.i6b.1905.

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Walter, William H. "FIRMNESS CONTROL OF SWEETPOTATO PRODUCTS BY MODIFICATION OF TISSUE pH." HortScience 28, no. 4 (1993): 277C—277. http://dx.doi.org/10.21273/hortsci.28.4.277c.

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Difficulty in controlling textural properties of processed sweetpotato products is a major factor accounting for the small number of such products available at the retail level. Control of textural properties is essentia1 because a succeseful commercial operation must turn cut a consistently high quality product from a wide range of raw materials, encompassing just-harvested roots to roots which have been stored for up to 10 months. We have developed a process to control the firmess of sweetpotato producta. It involve vacuum infiltration of either acidulants or bases into peeled, sliced sweetp

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Mbah, Chika J., William O. Obonga, and Chidinma M. Ekebor. "Is Transdermal Delivery Potential Route for Sitagliptin Phosphate: The pH Control Effect." Future Journal of Pharmaceuticals and Health Sciences 3, no. 4 (2023): 528–33. http://dx.doi.org/10.26452/fjphs.v3i4.532.

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The objective of this study is to predict transdermal delivery as a potential route for sitagliptin phosphate. The partition coefficient of sitagliptin phosphate was measured in a chloroform-buffer system using the shake flask method at room temperature, and the analysis was performed under different pH conditions. Established mathematical equations were employed to calculate transdermal parameters. The results indicate that the logarithm partition coefficient values of the drug at pH 2.0 (0.354) and pH 3.0 (0.293) were higher compared to the control (0.274). Statistical analysis revealed the

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Arun, S. Babu, Rafi Aseel, S. Parvathy M, S. Vaishnavi, and Ravi Chinnu. "Sustainable Water Quantity Monitoring and pH analysis using IoT." Journal of Advance Research in Mobile Computing 6, no. 3 (2024): 16–22. https://doi.org/10.5281/zenodo.13133007.

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<em>The</em><em> </em><em>”Sustainable</em><em> </em><em>water</em><em> </em><em>quantity</em><em> </em><em>monitoring</em><em> </em><em>and pH analysis using IoT” project is designed to enhance water management and quality control in both urban and rural settings through the integration of advanced flow sensors and pH sensors. This system enables precise measurement of water usage within an entire multi-storeyed building, tracking the consumption of individual users if the building is used by or rented out to many families or persons, and alerting the users who exceeds set limits.

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Pennuto, Christopher M., and Frank deNoyelies Jr. "Behavioral Responses of Drunella coloradensis (Ephemeroptera) Nymphs to Short-Term pH Reductions." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 12 (1993): 2692–97. http://dx.doi.org/10.1139/f93-293.

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Behavioral responses of Drunella coloradensis nymphs were examined in outdoor experimental stream channels after pH reductions of 1 and 2 pH units below ambient. The severity of pH decline below the ambient of 7.8 influenced the behavior patterns displayed by nymphs. At pH 7.01 (an intermediate pH decline) nymphs sat less frequently and burrowed more than controls. Burrowing behavior frequency returned to control levels and drifting and crawling behaviors increased relative to controls at pH 6.02. Ventilatory behaviors increased with pH decline, but were independent of the severity of acidity

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Devi, Devita Gude, Wahab Musa, and Syahrir Abdussamad. "Rancang Bangun Sistem Pengontrol dan Monitoring pH Air Hidroponik Menggunakan Aplikasi Blynk." Jambura Journal of Electrical and Electronics Engineering 6, no. 1 (2024): 57–62. http://dx.doi.org/10.37905/jjeee.v6i1.20827.

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Dalam praktik budidaya hidroponik, pengaturan keseimbangan pH air menjadi aspek penting dalam memastikan pertumbuhan dan produktivitas tanaman mencapai level terbaik. Oleh karena itu, tujuan dari penelitian ini adalah untuk merancang dan membangun sebuah sistem yang dapat mengontrol dan memantau pH air dalam tanaman hidroponik, menggunakan metode penelitian Research and Development (RD) dengan menggunakan aplikasi Blynk berbasis ESP32. Dalam tahap perancangan, peneliti menggunakan sensor pH air 4502C untuk mengukur tingkat pH air dalam sistem hidroponik. Mikrokontroler ESP32 bertugas sebagai p

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