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Topic: Respirometer

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1984 in science

	Respirometer - Wikipedia Indonesia, ensiklopedia bebas berbahasa Indonesia
		Respirometer adalah alat yang digunakan untuk mengukur rata-rata pernapasan organisme dengan mengukur rata-rata pertukaran oksigen dan karbon dioksida.
		Respirometer sederhana adalah alat yang dapat digunakan untuk mengukur kecepatan pernapasan beberapa macam organisme hidup seperti serangga, bunga, akar, kecambah yang segar.
		Respirometer ganong adalah alat yang dapat digunakan untuk menentukan angka respirasi (RQ = Respiratory Quotient) secara kuantitatif dalam suatu peristiwa pernapasan.
	id.wikipedia.org /wiki/Respirometer#Respirometer_sederhana (909 words)

	Respirometer - Patent 5025927
		The said respirometer is formed by holding the lower end of the said membrane to the said base plate with a collar complementary to it whereas the upper end of the said membrane is held to the said cover plate with a collar complmentary to it.
		Depending on the thickness of membrane used in the fabrication of the respirometer, this embodiment of the respirometer is suitable upto 125 ml volumetric capacity of the respirometer.
		Depending on the thickness of the membrane used in the fabrication of the respirometer, this embodiment of the respirometer is suitable upto 75 ml volumetric capacity of the respirometer.
	www.freepatentsonline.com /5025927.html (8690 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		A respirometer is a device used to measure the rate of respiration of a living organism by measuring its rate of exchange of oxygen and carbon dioxide.
		A simple respirometer designed to measure oxygen uptake or CO release consists of a sealed container with the living specimen together with a substance to absorb the carbon dioxide given off during respiration, such as soda lime pellets or cotton wads soaked with potassium hydroxide.
		As changes in temperature or pressure can also affect the displacement of the manometric fluid, a second respirometer identical to the first except with a dead specimen (or something with the same mass as the specimen in place of the organism) is sometimes set up.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Respirometer (244 words)

	Respiration-410
		Before the test is begun, the intake valve is turned to permit the subject to breathe from the respirometer and the chart is set moving.
		The respirometer records the data onto a chart on a revolving drum.
		Fill the respirometer with 02 (make sure that the "free breathing" valve located on the mouthpiece is open - this closes an internal valve to the respirometer and prevents air loss).
	www.siumed.edu /~bkinney/respprotocol.html (2785 words)

	On-Line Respirometer - Columbus Instruments - Instrument Details
		The respirometer employs state of the art gas phase monitoring to provide on-line respirometric measurements without the associated delay required for lab sample analysis.
		The On-Line respirometer operates by monitoring gas concentration changes caused by microbial respiration that occur in the head space of an enclosed bioreactor.
		Unique to the Columbus Instruments respirometer is gas phase analysis using the patented Micro-Oxymax "closed loop" technology.
	www.colinst.com /brief.php?id=88 (202 words)

	Justin Flores
		According to the gas law, which is given by: PV=nRT, where P is equal to the pressure of the gas and V is the volume.
		Respirometer 1: 25 germinating peas at 10 degrees Celsius
		Respirometer 2: Control- 10 degrees Celsius bath with 25 dry peas and glass beads to yield an equivalent volume to Respirometer 1
	www.niles-hs.k12.il.us /amilef/APReviewOut/Lab5JustinFlores_files/Lab5JustinFlores.htm (917 words)

	Challenge Technology - Leader in Civil Engineering Research Equipment
		The system was developed specifically for the measurement of Oxygen uptake in wastewater sample testing but has been found to be an excellent choice for any type of aerobic or anaerobic study.
		The AER-200 Respirometer is the most flexible system on the market able to grow with your needs from 8 to 16 and up to 24 reactors being monitored through one computer system.
		Challenge is a world leader in the design and application of respirometers for a wide range of applications.
	rd.business.com /index.asp?epm=s.1&bdcq=Respirometer&bdcr=2&bdcu=http://www.challenge-sys.com/&bdct=20071121182522&bdcp=&partner=2662601&bdcs=nwuuid-2662601-42156941-85AD-2656-7549-509922F907D3-ym (301 words)

	Respirometer
		The Arthur On-Line Respirometer is currently being redesigned.
		Customer training begins when the respirometer is delivered to the customer’s facility.
		In about an hour the respirometer is assembled, and water can be added to the water bath.
	www.respirometryplus.com /models.htm (468 words)

	lab 5 ap sample4
		These are summarized as general gas laws that state: PV=nRT where: P stands for pressure of the gas, V stands for the volume of the gas, n stands for the number of molecules of gas there are, R stands for the gas constant, and T stands for the temperature of the gas.
		Pressure changes in the respirometer are directly relative to a change in the amount of gas there is in the respirometer as long as the volume and the temperature of the respirometer do not change.
		Lastly, the equilibration period was identical for all the respirometers.
	sps.k12.ar.us /massengale/lab_5_ap_sample4.htm (1513 words)

	Respirometer - Wikipedia, the free encyclopedia
		A respirometer is a device used to measure the rate of respiration of a living organism by measuring its rate of exchange of oxygen and carbon dioxide.
		A simple respirometer designed to measure oxygen uptake or CO release consists of a sealed container with the living specimen together with a substance to absorb the carbon dioxide given off during respiration, such as soda lime pellets or cotton wads soaked with potassium hydroxide.
		The AER-200 is an open source respirometer that measures the volume of oxygen released in the reaction vessel without the use of electorlytic chmeicals.
	en.wikipedia.org /wiki/Respirometer (359 words)

	Respirometers - Aerobic/Anaerobic
		The AER-200 Respirometer can be used for both aerobic and anaerobic wastewater applications.
		The AER-200 Respirometer is designed for batch and laboratory applications.
		An easy-to-use respirometer system...you minimize set up time by using standard laboratory glassware...you reduce cleanup time because grease is not required to seal the reaction vessels...you can withdraw gas or liquid samples from the reaction vessels at any time during a test
	www.challenge-sys.com /PRODUCTS/AER-Respirometer/aer.html (1123 words)

	Use of the Warburg Respirometer to study Microbial Activity in Soils
		Use of the Warburg Respirometer to study Microbial Activity in Soils
		THE respiratory activity of the micro-organisms in samples of soil, determined by estimating the evolution of carbon dioxide, has long been considered by soil microbiologists to be related to soil fertility
		Along somewhat similar lines, our own studies suggest that the Warburg constant-volume respirometer may prove a valuable tool with which to examine the activities of soil organisms in the breakdown of soil organic matter, or to determine the effect of various treatments in modifying the behaviour of soil organisms.
	www.nature.com /nature/journal/v171/n4350/abs/171481a0.html (146 words)

	Description \| Respicond - the 96 unit respirometer \| A. Nordgren Innovations
		The inexpensive, precise, computerized respirometer for measuring soil respiration rate simultaneously in 1 to 96 samples for extended periods of time.
		NEWS NEWS NEWS Respicond VI was released 2007.
		RESPICOND VI measures the evolution of CO by capturing it in KOH.
	www.respicond.com (437 words)

	Manashakti: Centre for Peace of Mind - Respirometer Test
		During the test you are taken through different thought levels such as love, hate, relations, ambitions, business, health, selfless work, social service, etc., which are closely related to your day to day activities.
		The changes in respiration are recorded by respirometer.
		Analysing this we are able to study the entire spectrum of Psychological personality and suggest steps for correction wherever required.
	www.manashakti.org /et/epaget14.htm (131 words)

	Respirometer
		With the large LCD readout display on the Model 295 Digital Respirometer the confusion of reading a mechanical respirometer dial is eliminated.
		The flow sensing unit has only one moving part, and is detachable from the control unit for ease of sterilization and cleaning.
		A special model of the Wright Respirometer especially designed for use with newborns and infants to 20 kg in weight with tidal volumes of 15ml to 200 ml.
	www.mainlinemedical.com /en-us/dept_1026.html (292 words)

	Cellular Respiration Lab
		Since the CO is being removed, the change in the volume of gas in the respirometer will be directly related to the amount of oxygen consumed.
		Drop in 25 germinating peas and determine the amount of water that was displaced (which is equivalent to the volume of peas).
		Allow the respirometers to equilibrate for three more minutes and then record, to the nearest 0.01 mL, the initial position of water in each pipette (time 0).
	personal.nbnet.nb.ca /kvhs/biology/resplab.html (1139 words)

	Cricket Respiration Lab/AP Bio
		The mouse died as the oxygen in the air was replaced by carbon dioxide produced by respiration.
		By adding a solution of potassium hydroxide to the respirometer, generated carbon dioxide is removed from the air when it reacts with the hydroxide to form a carbonate.
		To accurately measure this effect, the respirometers are equilibrated in a water bath.
	www.ekcsk12.org /science/apbio/cricketrespirationlab.htm (1395 words)

	Ventilation Lecture (Site not responding. Last check: )
		The Collins respirometer was used to measure lung volumes, which are also illustrated in table 15-14 in Vander.
		The added carbon dioxide is instead removed by the respirometer, and the continual removal of oxygen from the bell by the student manifests itself in a loss of volume from the bell and a gradual upward slant to the tracing.
		To do this, we assumed that the amount of carbon dioxide removed by the ascarite (substance in the cannister that "scrubbed," or removed the carbon dioxide) was equal to the amount of oxygen consumed by the student.
	eee.uci.edu /courses/bio112/112lab7.htm (459 words)

	BI97Life\BI97broc\bi97pp1 (Site not responding. Last check: )
		The respirometer is composed of a 125 mL Erlenmeyer flask.
		The respirometer must be airtight except for the open end of the pipette.
		After the glue dries, the pipette-stopper combination may be tested for air tightness by placing the entire respirometer is a water bath.
	www.woodrow.org /teachers/bi/1997/plantdev/bi97pp1.htm (162 words)

	Wright Respirometer (Site not responding. Last check: )
		Respirometers measure the volume of air/oxygen mixtures supplied in patient ventilation circuits.
		They are entirely mechanical devices with dial and pointer mechanisms to indicate the volume passed.
		The robust design, reliability and durability of our respirometers has earned them a worldwide reputation for superior performance.
	gracemed.net /ProductCatalogue/WrightRespirometer/tabid/274/Default.aspx (252 words)

	900261 Benthic respirometer
		Our project to upgrade the benthic respirometer (BRS) will increase the scope of measurements relating to carbon cycling and benthic community energetics.
		Studies of carbon cycling in marine sedimentary communities have relied principally on measurements of oxygen uptake, using respiration chambers placed on the seafloor.
		The Oasis 3 control system will be adapted for use with the respirometer and will replace the osmoanalyzer-based TT4 controller.The upgraded BRS will support more detailed study of benthic carbon cycling and physiological studies of individual benthic and midwater animals.
	www.mbari.org /rd/projects/2004/auv_and_rov/900261_respirometer_04.html (208 words)

	Strathkelvin Instruments Ltd. new Strathtox respirometer is taken on by Canadian Distributor - Aquatic Life.
		Strathkelvin Instruments Ltd. new Strathtox respirometer is taken on by Canadian Distributor - Aquatic Life.
		However the first to seal the distribution rights for the new respirometer was Aquatic Life who occupy a premier position in the Canadian market place for top class wastewater treatment consultancy and products.
		This state of the art precision respirometer provides everything an operator needs to carry out the most demanding of measurements using easy and simple procedures.
	www.edie.net /news/news_story.asp?id=9083 (654 words)

	CES \| Challenge OUR-BODst Respirometer
		Respirometer was designed specifically as an activated sludge respirometer (ASR) to measure oxygen uptake rates, toxicity, and short-term BODs.
		An easy-to-use respirometer system...you minimize set up time by using standard laboratory glassware.
		A respirometer system that can measure just about any variation in oxygen uptake rates...ranges from 0.06 mg/hr to 600 mg/hr...you'll be covered for just about any situation you'll encounter in the field
	www.envitreat.com /OUR.html (217 words)

	Materials and Procedure (Site not responding. Last check: )
		Next we placed the respirometer chamber in a pan of ice water and allowed it to chill for five minutes of until the temperature inside the chamber was 10 ºC. Then we repeated step five.
		Then we placed the respirometer chamber in a pan of hot water and allowed it to heat up for about five minutes or until the temperature inside the chamber was about 35 ºC..
		Again we took the same respirometer chamber and placed the mouse in the chamber at a temperature of 20ºC. (room temperature).
	www.cdli.ca /d6vsatf2000/s6/p5/matpro.htm (462 words)

	DIALOG Dissertation Abstracts (Site not responding. Last check: )
		The first section discusses the development and testing of a field respirometer system designed to measure water column respiration rates in quickly darkened samples at frequent intervals over a diel period.
		The tri-hourly respiration and net production rate data gathered with the respirometer system are used to calculate short term changes in the apparent gross primary production rates over the diel period.
		The results of experiments with the respirometer system show that water column respiration rates follow distinct diel patterns which are not simply correlated with light, temperature or primary production.
	aslo.org /phd/dialog/1994January-18.html (583 words)

	Plotting Relationships in Biology: A Case of Cellular Respiration
		In brief, the respirometer is a tube with a rubber stopper that has an opening for a graduated pipette tip.
		When the system is fully assembled and submerged in a water bath, the water enters the pipette tip until a point in which the pressure inside and outside of the respirometer is equal.
		When the temperature varies and the number of gas molecules is kept constant, the pressure or volume or both is directly related to the temperature.
	gotoscience.com /lessons/PlottingRelationshipsBio.html (1338 words)

	BSL PRO Lesson A07 Fish Respiration and Q10 (Site not responding. Last check: )
		A small magnetic stir bar, placed in the bottom of the respirometer, is then spun at a speed fast enough to mix the water, but not overly exercise or stress the fish (i.e., no whirpools!).
		Replace the lid and center the respirometer on the stirring plate so the stir bar spins freely (if the chamber floats you may have to place a small weight on the lid to hold it down).
		Insert the probe into the large hole in the respirometer and allow it to equilibrate to the water bath temperature as the fish is acclimating to its new surroundings.
	www.biopac.com /bslprolessons/a07/a07.htm (3191 words)

	Hopkins-facilities (Site not responding. Last check: )
		The system that is utilized for most studies is our Micro-Oxymax, a computer-controlled, closed system respirometer that measures both oxygen consumption and carbon dioxide production simultaneously.
		The track has multiple removable endcaps, one that allows it to be interfaced with our ER-10 respirometer, and a rear endcap that includes a shock grid that provides motivation to remain on the running surface.
		The optional shock grid is controlled by an external power source that controls both the intensity and pulse rate of the stimulus.
	www.uga.edu /srel/Hopkins/Hopkins-facilities.htm (1085 words)

	Ventilatory and metabolic responses to hypoxia in the smallest simian primate, the pygmy marmoset -- Tattersall et al. ...
		Ventilation in marmosets was determined using the barometric method (3, 11, 29) as adapted for flow-through respirometers
		The respirometer for measuring metabolic rate and ventilatory parameters was constructed from noncompressible, 3/8-in.
		Before data were collected, marmosets were placed in the respirometer on numerous occasions to acclimatize them to the experimental
	jap.physiology.org /cgi/content/full/92/1/202 (4326 words)

	Strathkelvin Instruments
		The Strathtox Activated Sludge Respirometer comprises 6 respirometer cells, 6 oxygen electrodes, an oxygen interface, activated sludge temperature reservoir system and dedicated software.
		It is the only respirometer in the world with these advanced features combined into a single compact desktop unit.
		The six 20ml respirometer cells are located in a rack, for easy removal at the end of a run.
	www.strathkelvin.com /new_tt1.html (161 words)

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