scholarly journals Perancangan Pengisian Pada Dispenser Dengan Memanfaatkan Sensor Dan Embedded System

2021 ◽  
Vol 1 (2) ◽  
pp. 147-152
Author(s):  
Alfianda Alfianda ◽  
Muhammad Amin ◽  
Risnawati Risnawati
Keyword(s):  
Drinking Water ◽  
Embedded System ◽  
Diode Laser ◽  
Laser Diode ◽  
Water Pump ◽  
Filling Process ◽  
Almost All

Abstract: Nowadays, almost all of them use a dispenser, because of its practicality. But behind that there are several things that make the dispenser less efficient when taking drinking water from the glass, because the user has to press or turn the water tap in the dispenser. The working system of this tool is where the machine will run according to the commands obtained from the laser diode and the LDR sensor, the laser diode will reflect light that leads to the LDR. when the light reflected by the laser diode to the LDR is cut, it can be interpreted that the LDR and the laser diode detect or read the presence of an object in the form of a glass, automatically the two sensors instruct the controller to activate the water pump and the water pump will work to remove the water which will be filled in the glass that is placed in the dispenser with the volume of the glass used, the filling process and the end of filling will be displayed by the LCD and when filling the water the glass is full there will be a warning from the buzzer in the form of a sound. Users no longer need to press or turn the water tap when taking water from the dispenser using a glass. Keywords: Dispensers;LDR Sensor;Diode Laser and Tools  Abstrak: Pada saat ini masyarakat sekarang sudah hampir semuanya menggunakan dispenser, karena kepraktisan. Namun dibalik itu semua ada beberapa hal yang membuat dispenser kurang efisien saat mengambil air minum pada gelas, karena pengguna harus menekan atau memutar keran air yang ada pada dispenser. Sistem kerja dari alat ini ialah dimana mesin akan berjalan sesuai dengan perintah yang didapat dari Dioda laser dan sensor LDR, Dioda laser akan memantulkan cahaya yang mengarah pada LDR, pada saat cahaya yang dipantulkan Dioda laser ke LDR terpotong maka dapat diartikan LDR dan Dioda laser mendeteksi atau membaca adanya benda berupa gelas, secara otomatis kedua sensor tersebut memerintahkan controller mengaktifkan pompa air dan pompa air akan bekerja mengeluarkan air yang akan diisikan pada gelas yang diletakkan pada dispenser dengan volume gelas yang digunakan, proses pengisian dan akhir pengisian akan ditampilkan oleh LCD dan saat pengisian air pada gelas penuh akan ada peringatan dari buzzer berupa bunyi. Pengguna tidak perlu lagi menekan atau memutar keran air saat mengambil air pada dispenser menggunakan gelas. Kata Kunci : Dispenser;Sensor LDR;Dioda Laser dan Alat

Habitat Association of Klebsiella Species

1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley
Keyword(s):  
Drinking Water ◽  
Gastrointestinal Tract ◽  
Surface Waters ◽  
Industrial Effluents ◽  
Opportunistic Pathogen ◽  
Habitat Associations ◽  
Habitat Association ◽  
Klebsiella Species ◽  
Almost All ◽  
Polluted Waters

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).

7.4 Gbit/s monolithically integrated GaAs/AlGaAs laser diode-laser driver structure

1993 ◽  
Vol 29 (19) ◽  
pp. 1694 ◽  
Author(s):  
J. Hornung ◽  
Z.-G. Wang ◽  
W. Bronner ◽  
E. Olander ◽  
K. Köhler ◽  
...  
Keyword(s):  
Diode Laser ◽  
Laser Diode ◽  
Monolithically Integrated ◽  
Laser Driver

scholarly journals Water Quality Assessment of West Tarum Canal for Drinking Water Supply

2021 ◽  
Vol 277 ◽  
pp. 04003
Author(s):  
Ayu Widya Utami ◽  
Dwi Nowo Martono ◽  
Haruki Agustina
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Integrated Management ◽  
Water Quality Assessment ◽  
Polluted Water ◽  
Infrastructure Development ◽  
Raw Water ◽  
Agriculture Industry ◽  
The Government ◽  
Almost All

West Tarum Canal (WTC) is a canal that drains raw water from the Jatiluhur Dam. Nearly 81% of the raw water for drinking water used by Jakarta’s people comes from this canal. However, various land uses such as agriculture, industry, settlements, and infrastructure development impact WTC’s water quality. This research aims to assess WTC’s water quality in 2016-2020 based on water quality standards set by the Government and using the STORET method. The results of this research indicate that the concentrations of TDS (142-351 mg/L), Fe (0.1-0.15 mg/L), Mn (0.03-0.1 mg/L) are meet the standards, while DO (3.6-4.9 mg/L), BOD (4-10 mg/L), COD (13-30 mg/L) are not meet the standards. Almost all monitoring points have pH values between 5.75-7.68 that are meet the standards. The STORET score of WTC is from -26 to -38 with an average of -30, which indicates that WTC’s water quality is moderately polluted. Water contamination in WTC will burden the drinking water processing and ultimately affect the community’s ability to pay for drinking water. This research also shows the need for integrated management of WTC from upstream to downstream and the need to increase collaboration between stakeholders in carrying out this management.

scholarly journals Toxicology and Clinical Manifestation of Arsenicosis: An Evaluation

2018 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Drinking Water ◽  
Clinical Manifestation ◽  
Health Condition ◽  
The Body ◽  
Clinical Feature ◽  
Modern World ◽  
Contaminated Water ◽  
Social Sector ◽  
Skin Involvement ◽  
Almost All

Arsenicosis is an adverse health condition due to prolong ingestion of arsenic contaminated water. It is most prevalent in Bangladesh. More than 67 million people in Bangladesh are exposed to 0.05 mg/ liter or above of arsenic in their drinking water and it is now considering a biggest crisis in health and social sector in the modern world. Arsenicosis affects almost all the vital system of the body. Skin involvement is the earliest and commonest feature. Major dermatological manifestations are melanosis, keratosis and skin malignancies. Diagnosis is usually done by history, clinical feature and laboratory analysis. In this article, author describes the extent of arsenicosis in Bangladesh and emphasizes dermatological manifestations of the disease.

scholarly journals Drinking water standards in South American countries: convergences and divergences

2012 ◽  
Vol 10 (2) ◽  
pp. 295-310 ◽  
Author(s):  
Vívian Gemiliano Pinto ◽  
Léo Heller ◽  
Rafael Kopschitz Xavier Bastos
Keyword(s):  
Drinking Water ◽  
Scientific Basis ◽  
World Health ◽  
South American ◽  
Who Guidelines ◽  
Water Safety ◽  
Drinking Water Standards ◽  
The Usa ◽  
Health Organization ◽  
Almost All

In this paper we present a comparative assessment of drinking-water standards from almost all South American countries, using the USA and the Canadian standards and the World Health Organization (WHO) Guidelines as references. Similarities and discrepancies between standards/guidelines were identified through descriptive analyses and, in the case of chemical standards, clustering techniques. In general, one or another of the four consecutive editions of the WHO Guidelines were shown to be quite influential in setting drinking-water standards in the region, but not so much the USA and the Canadian standards. Considerable discrepancies between South American drinking-water standards were found, mainly with respect to chemical substances. Questions are raised about their scientific basis and/or the practicalities for their enforcement. In conclusion, the paper highlights that many drinking-water regulations in South America need updating, taking on the approach of health-based targets in setting these standards, as well as that of a broader risk-based preventive management in the entire supply system to assure water safety.

scholarly journals A LiÉnard Oscillator Resonant Tunnelling Diode-Laser Diode Hybrid Integrated Circuit: Model and Experiment

2008 ◽  
Vol 44 (12) ◽  
pp. 1158-1163 ◽  
Author(s):  
Thomas J. Slight ◽  
Bruno Romeira ◽  
Liquan Wang ◽  
JosÉ M. L. Figueiredo ◽  
Edward Wasige ◽  
...  
Keyword(s):  
Diode Laser ◽  
Laser Diode ◽  
Integrated Circuit ◽  
Circuit Model ◽  
Resonant Tunnelling ◽  
Hybrid Integrated Circuit ◽  
Resonant Tunnelling Diode

scholarly journals Lifecycle, Iteration, and Process Automation with SMS Gateway

2015 ◽  
Vol 6 (4) ◽  
pp. 544
Author(s):  
Fenny Fenny
Keyword(s):  
Drinking Water ◽  
Best Practices ◽  
Defect Detection ◽  
Automated Testing ◽  
Testing System ◽  
Water Pump ◽  
Process Automation ◽  
Software Developers ◽  
Abnormal State ◽  
Water Plant

Producing a better quality software system requires an understanding of the indicators of the software quality through defect detection, and automated testing. This paper aims to elevate the design and automated testing process in an engine water pump of a drinking water plant. This paper proposes how software developers can improve the maintainability and reliability of automated testing system and report the abnormal state when an error occurs on the machine. The method in this paper uses literature to explain best practices and case studies of a drinking water plant. Furthermore, this paper is expected to be able to provide insights into the efforts to better handle errors and perform automated testing and monitoring on a machine.

scholarly journals Research on Spectroscopy Modulation of a Distributed Feedback Laser Diode Based on the TDLAS Technique

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Bin Li ◽  
Liang Xue ◽  
Nan Ji ◽  
Da Hui Wei
Keyword(s):  
Diode Laser ◽  
Light Source ◽  
Absorption Spectroscopy ◽  
Laser Diode ◽  
Power Supply ◽  
Distributed Feedback ◽  
Distributed Feedback Laser ◽  
Laser Absorption ◽  
Tuneable Diode Laser ◽  
Diode Laser Absorption

Laser current and temperature control circuits have been developed for a distributed feedback laser diode, which is applied as the light source of a tuneable diode laser absorption spectroscopy system. The laser’s temperature fluctuation can be limited within the range of −0.02 to 0.02°C, and good operation stability was observed through 15 hours of monitoring on the emitting wavelength of the laser. Response time of temperature modulation was tested which is suitable for the tuning requirements of gas detection systems. Laser current can be injected within the range from 40 to 80 mA. In addition, a linear power supply circuit has been developed to provide stable and low-noise power supply for the system. The physical principles of laser modulation theory are discussed before experiments. Experiments show that the output wavelength of the laser can be tuned accurately through changing the working current and temperature. The wavelength can be linearly controlled by temperature at 0.115 nm/°C (I = 70 mA) and be controlled by current at 0.0140 nm/mA (T = 25°C). This is essential for the tuneable diode laser absorption spectroscopy systems. The proposed cost-effective circuits can replace commercial instruments to drive the laser to meet the requirements of methane detection experiments. It can also be applied to detect other gases by changing the light source lasers and parameters of the circuits.

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