bulk flow definition
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What Is Bulk Flow? Bulk flow is a movement of molecules from an area of high pressure to an area of low pressure. In cell biology, it refers to the transport of fluids or electrolytes between cells through openings, or pores, between the cells. Toilets and faucets employ mechanisms that utilize bulk flow, as well as the transport systems found in plants and animals.
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turbulent flow forced expiratory flow (FEF) the rate of airflow recorded in measurements of forced vital capacity, usually calculated as an average flow over a given portion of the expiratory curve; the portion between 25 and 75 per cent of forced vital capacity is called the maximal midexpiratory flow.
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Summary of the Water Cycle Definition of water flow. : a flow or flowing of water; also : the amount of water flowing (as past a valve) per unit of time.
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- Definition of bulkhead - a dividing wall or barrier between separate compartments inside a ship, aircraft, or other vehicle. Definition of bulkhead - a dividing wall or barrier between separate compartments inside a ship, aircraft, or other vehicle.
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- F - A flow, or flow variable, is an economic magnitude describing behavior that occurs over time and is therefore meaningful only relative to the unit of time. Examples are the value of exports (dollars per year),demand for foreign exchange (euros per day), and migration (persons per month). Contrasts with a stock.
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- Andy Gaies began working with Audible in 2011 as a lawyer in the Amazon legal department. In 2012, Andy joined Audible as Executive Vice President of Business Affairs, primarily focused on content and rights acquisition for Audible.
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Capillary action Capillary action. Capillary action (sometimes capillarity, capillary motion, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
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Filtration Membrane Glomerular filtration is a process of bulk flow: water and low molecular weight substances move from the lumen of the capillary, across the filtration membrane, and into Bowman s space.
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Bulk transport Like the active transport processes that move ions and small molecules via carrier proteins, bulk transport is an energy-requiring (and, in fact, energy-intensive) process. Here, we’ll look at the different modes of bulk transport: phagocytosis, pinocytosis, receptor-mediated endocytosis, and exocytosis.
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- The bulk density often is the bulk density of the powder “as poured” or as passively filled into a measuring vessel. The tapped density is a limiting density attained after “tapping down,” usually in a device that lifts and drops a volumetric measuring cylinder containing the powder a fixed distance.
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Diffusion Diffusion vs. bulk flow. An example of a situation in which bulk motion and diffusion can be differentiated is the mechanism by which oxygen enters the body during external respiration (breathing). The lungs are located in the thoracic cavity, which expands as the first step in external respiration.
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- Economic Definition of circular flow. Offline Version: PDF. Term circular flow Definition: The continuous movement of production, income, and resources between producers and consumers. This flow moves through product markets as the gross domestic product of our economy and is then the revenue received by the business sector in payment for this production.
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Glossary streamflow. (hydrology). A type of channel flow, applied to surface runoff moving in a stream. 1  Facebook. 2  Twitter.
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Optic flow Optic flow is defined as the change of structured light in the image, e.g. on the retina or the camera’s sensor, due to a relative motion between the eyeball or camera and the scene.igure 1: shows the production and detection of optic flow. a) Optic flow is generated on the retina by changes in the patterns of light. The example shows the shift of two visual features (star and hexagon) on a plane and their angular displacements on the surface of the eyeball.
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bulk To cause to cohere or form a mass. adj. Being large in mass, quantity, or volume: a bulk buy; a bulk mailing. bulk up. To gain weight by gaining muscle: dietary supplements that helped the weightlifters bulk up. in bulk. 1. Unpackaged; loose. 2. In large numbers, amounts, or volume.
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Definition of Terms Definition of Terms. Laminar flow is unidirectional air moving at a steady velocity along parallel lines. Laminar flow cabinets may or may not be biological safety cabinets. High efficiency particulate air filter designed to remove particles, including microorganisms, from the air.
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Bulk movement For instance, proteins with the KDEL sorting signal are specified to return to the endoplasmic reticulum from the Golgi (see vesicular transport). However, proteins lacking a sorting signal will increase in concentration in a specific compartment until it reaches bulk concentration in the donor compartment. At this point, it enters budding vesicles and is transported to an acceptor compartment. It is thus this process which is termed bulk flow.
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"Geological Terms Beginning With ""D""" A type of mass movement in which a combination of rocks, soil, organic matter, air and water flow downslope as a slurry. Debris flows differ from mud flows because they are mainly rock material instead of mud. They can be triggered by heavy precipitation, rapid snow melt or vibrations.
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9 Using Bulk Tools 9.1 bulkload. The bulk loader, bulkload, is a bulk management tool. It takes input data in LDIF or SQL*Loader format and loads that data directly into Oracle Internet Directory's schema in the metadata repository. It has three main phases: check, generate and load.
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- Flow, gush, spout, spurt refer to certain of the movements characteristic of fluids. Flow is the general term: Water flows. A stream of blood flows. To gush is to rush forth copiously from a cavity, in as large a volume as can issue therefrom, as the result of some strong impelling force: The water will gush out if the main breaks.
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Waste Water - Flow Capacity Waste Water and Flow Capacity. In a sewage piping and pumping system the flow velocity must exceed certain limits to maintain trouble free operation and avoid settling and sedimentation of solids: 1  For horizontal wastewater pipe systems with solids the speed should exceed 3 ft/sec.
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- In a broad sense, the appropriate term. for gas flow is compressible flow. In a. stricter sense, however, such flow can. be categorized as either incompress-. ible or compressible, depending on the. amount of pressure change the gas un-. dergoes, as well as on other conditions.
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Bulk movement This article is about the biological process. For use in mechanics, see fluid dynamics. In cell biology, bulk flow is the process by which proteins with a sorting signal travel to and from different cellular compartments.
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Elastic modulus 1 ) describes volumetric elasticity, or the tendency of an object to deform in all directions when uniformly loaded in all directions; it is defined as volumetric stress over volumetric strain, and is the inverse of compressibility. 2  The bulk modulus is an extension of Young's modulus to three dimensions.
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- BULK DENSITY AND TAPPED DENSITY OF POWDERS. BULK DENSITY. The bulk density of a powder is the ratio of the mass of an untapped powder sample and its. volume including the contribution of the interparticulate void volume. Hence, the bulk density. depends on both the density of powder particles and the spatial arrangement of particles in the. powder bed.
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- bankfull flow The maximum amount of discharge (usually measured in m /s) that a stream channel can carry without overflowing. Its frequency of occurrence varies between streams, from a few times each year to once every few years. The water height at bankfull discharge is referred to as the ‘bankfull stage’.ankfull flow Maximum amount of discharge (usually measured in m /s) that a stream channel can carry without overflowing. Its frequency of occurrence varies between streams, from a few times each year to once every few years. The water height at bankfull discharge is referred to as the ‘bankfull stage’.