Captured or displayed buffers are dequeued with the VIDIOC_DQBUF ioctl. The driver can unlock the buffer at any time between the completion of the DMA and this ioctl. The memory is also unlocked when VIDIOC_STREAMOFF is called, VIDIOC_REQBUFS, or when the device is closed.. For capturing applications it is customary to enqueue a number of empty buffers, to start capturing and enter the read loop. Here the application waits until a filled buffer can be dequeued, and re-enqueues the buffer when the data is no longer needed. Output applications fill and enqueue buffers, when enough buffers are stacked up output is started. In the write loop, when the application runs out of free buffers it must wait until an empty buffer can be dequeued and reused. Two methods exist to suspend execution of the application until one or more buffers can be dequeued. By default VIDIOC_DQBUF blocks when no buffer is in the outgoing queue. When the ...
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The kinetic rate parameters for the interaction between a single domain analogue of staphylococcal protein A (Z) and a mouse-IgG3 monoclonal antibody (MAb) were measured in Hepes buffer with different chemical additives. Five buffer ingredients (pH, NaCl, DMSO, EDTA, and KSCN) were varied simultaneously in 16 experiments following a statistical experimental plan. The 16 buffers thus spanned a volume in chemical space. A mathematical model, using data from the buffer composition, was developed and used to predict apparent kinetic parameters in five new buffers within the spanned volume. Association and dissociation parameters were measured in the new buffers, and these agreed with the predicted values, indicating that the model was valid within the spanned volume. The pattern of variation of the kinetic parameters in relation to buffer composition was different for association and dissociation, such that pH influenced both association and dissociation and NaCl influenced only dissociation. This ...
In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent to an output device (such as speakers). However, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in a fixed memory location in hardware-or by using a virtual data buffer in software, pointing at a location in the physical memory. In all cases, the data stored in a data buffer are stored on a physical storage medium. A majority of buffers are implemented in software, which typically use the faster RAM to store temporary data, due to the much faster access time compared with hard disk drives. Buffers are typically used when there is a difference between the rate at which data is received and ...
An optimal buffer system is essential to perform successful PCR. Reliable PCR results depend on many factors: the quality of the DNA and primers as well as the PCR instrument itself.. Ampliqon has developed different Tris-based buffer solutions to meet different requirements in PCR applications. The buffers are commonly supplied in 10x formulations with 15 mM MgCl2 included. Ampliqon buffers are also available without Mg2+ and Tween 20 or Triton X-100.. Buffer convenience and user-flexibility is achieved by the ability to choose either the right DNA Polymerase/buffer combination or the optimal buffer based Master Mix among the wide range of Ampliqons DNA polymerase products. All Ampliqon DNA Polymerases and Master Mixes are available with different buffer options, making it easy to choose either the right combination of DNA polymerase and buffer or the correct Master Mix, for matching different PCR applications and PCR assay conditions.. ...
MIME-version: 1.0 X-Mailer: 6.0 sub 10577 Content-type: multipart/alternative; boundary=Boundary_(ID_7iqcDLFRP7WCJxTbhUzRVQ) Full-name: WWmn916 --Boundary_(ID_7iqcDLFRP7WCJxTbhUzRVQ) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Sigma is no longer making premade Trisma Buffer pH 7.4 We have always used their product in making our solution for the NADH muscle stain. Ive experimented with a Sodium Phosphate diabasic/monobasic solution and the results looked the same as a NADH muscle stained with a Trisma buffer component. Can anyone tell me what the difference between the two buffers are and what factors I need to consider, if any, in transitioning to making the sodium phosphate buffer to replace the Trisma buffer? Lastly, does anyone know of a different supplier of premadeTrisma buffers, other than Sigma or Fisher (since Fisher gets their tris buffer from Sigma?) Thanks, Deb King HT Sacramento, CA --Boundary_(ID_7iqcDLFRP7WCJxTbhUzRVQ) Content-type: text/html; ...
hi. its true that the buffers are acidic for RNA work and slightly basic (usually around pH 8)for DNA extractions. If you place DNA in a strong bacic solution the bonds between the strands will be cleaved and the 2 stands will not be able to re join. RNA can survive and contaminate when preforming a DNA extraction, unless specific steps are used to remove the RNA ie using RNase. The acidic conditions for RNA extractions is due to a number of problems when dealing with RNA. DNA is a major contaminant which needs to be removed as it can interfer with RT-PCR etc. Also RNase has very little activity in acidic condition and is de-activated by guanidinium thiocyanate. Often the RNA extraction buffers are 5M G.thio and pH 4.8ish. hope that helps regards Sean Admin note: Another reason for the disparity in nucleic acid extraction buffers is tied to the phenol extractions commonly used to purify the nucleic acids away from cellular proteins: DNA is soluble in even mildly acidic phenol while RNA is not; ...
Our RNeasy buffers are subjected to stringent quality-control tests to ensure that they are indeed RNase-free. Buffer RPE concentrate and RNase-free water are tested for absence of RNases by incubating 4 µg of total HeLa-RNA in these solutions for 3 hours at 37°C, followed by monitoring RNA integrity via denaturing agarose gel electrophoresis and ethidium bromide staining.. Buffer RLT and Buffer RW1 are inherently RNase-free, since the buffers themselves inactivate RNases during the RNeasy procedure. ...
DR is curious as to how the SureFire Optimzed Bolt Carrier/H7S Buffer combo stacks up against both the FERFRANS DSAS/RRS (Delayed Sear Activation System/Rate Reduction System) BCG and Nemo Arms RRS BCG, respectively. Weve been writing about the FERFRANS BCG for years, and were BIG fans of it. Both the OBC-LS/H7 Buffer System and DSAS/RRS BCG essentially achieve a similar effect through two completely different designs. Where the SureFire OBC-LS/H7 Buffer System utilizes a springloaded weight in the back of the carrier and teams the BCG up with a proprietary buffer, the FERFRANS DSAS/RRS BCG utilizes a simple reciprocating metal piece that recipricates freely within the BCG, via inertia. The the OBC-LS/H7 Buffer System is a more sophisticated design than the FERFRANS DSAS/RRS BCG, so it will be interesting to see how they compare back-to-back at some point.. DR has only examined and written about the Nemo Arms RRS BCG once when it was pulled out of a Nemo Arms Omen Recon .300WM 18″ ...
Buffer capacity is a measure of a buffer solution\s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO ...
Referencemateriale 0.01 S/m R03.001 (engelsk) Referencemateriale 0.1 S/m R03.002 (engelsk) Referencemateriale 1 S/m R03.003 (engelsk) Referencemateriale 10 S/m R03.004 (engelsk) Referencemateriale Primary pH buffer Phthalate (pH = 4.005) R03.101 (engelsk) Referencemateriale Primary pH buffer 1:1 phosphate (pH = 6.865) R03.102 (engelsk) Referencemateriale Primary pH buffer 1:3.5 phosphate (pH = 7.413) R03.103 (engelsk) Referencemateriale Primary pH buffer Borate (pH = 9.180) R03.104 (engelsk) Referencemateriale Primary pH buffer Carbonate (pH = 10.012) R03.105 (engelsk) ...
Browse through each item youll need for your task, including the Extech PH7-P 7pH Buffer Solution. TestEquity offers various delivery options to help meet your deadlines.
Buffer Solution pH 7 (Phosphate) Color Coded Yellow - BB0360-1 BB0360-1 BB0360-5 BB0360-20 ph Buffers pH Buffers Chemicals, pH Buffers
Dear all, I intend to use citrate buffer at 100 mM for some experiments, but then I stumbled over a notice from Dionex, that citrate buffer can modify proteins and peptides. However, when searching for references I was not able to find information about it. Is this really a major artefact in citrate buffer ? Does anyone have some information or references about it ? Thanks, Werner ...
Microbe-Lift® 7.5 pH Buffer Stabilizer safely buffers pH levels and prevents wide pH swings, with alkalinity for nitrification. Specifically formulated to control the event of fish toxicity due to potential overdosing.
Currently, protocol buffers support generated code in programming languages such as C++, Java and Python. Protocol buffers are designed to be smaller and faster than XML and aim for both simplicity and performance. Similar to Microsoft Bond or Apache Thrift protocols, Protocol buffers offer a concrete RPC protocol stack to be used for defined services. A protocol buffer makes use of an interface description language that explains the data structure and an application which generates the source code based on that description. The source code is then used in parsing the bytes of the structured data. There are several advantages of using protocol buffers over XML. Protocol buffers are simpler to use, and they are 3-10 times smaller than XML with 20-100 times the speed. Another advantage is that they are less ambiguous and can generate data access classes that are simple to develop programmatically. There are few drawbacks associated with protocol buffers. Protocol buffers may not be an effective ...
Apologies in advance to anyone whos sick of watching from a distance as I dig through the buffer cache code; I never claimed to be well informed! After spending most of the night reading through parts of the kernel source in a diner I wanted a decent picture of what the _actual result_ of various parts of the buffer cache code looked like on one of my typical systems here at work. I built a kernel with DEBUG and turned on debug.syncprt with sysctl. One of my suspicions was immediately confirmed: There are *NO* buffers larger than 8K on my system, ever. The machine in question is a fairly small-memory machine, so I have nbuf=bufpages; however, within a minute or so of runtime, about 2/3 of the buffers are 8k, as Id expect (all of my filesystems have 8K blocks), and about 1/3 remain at 4K. This is the in-use buffers; the 8K buffers have been created, of course, by stripping pages from other buffers; at the default size of one page (4K, on the i386), this means that a lot of buffers went away ...
Xiao Chen created HDFS-13540: -------------------------------- Summary: DFSStripedInputStream should not allocate new buffers during close / unbuffer Key: HDFS-13540 URL: https://issues.apache.org/jira/browse/HDFS-13540 Project: Hadoop HDFS Issue Type: Bug Affects Versions: 3.0.0 Reporter: Xiao Chen Assignee: Xiao Chen This was found in the same scenario where HDFS-13539 is caught. There are 2 OOM that looks interesting: {noformat} FSDataInputStream#close error: OutOfMemoryError: Direct buffer memoryjava.lang.OutOfMemoryError: Direct buffer memory at java.nio.Bits.reserveMemory(Bits.java:694) at java.nio.DirectByteBuffer.,init,(DirectByteBuffer.java:123) at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) at org.apache.hadoop.io.ElasticByteBufferPool.getBuffer(ElasticByteBufferPool.java:95) at org.apache.hadoop.hdfs.DFSStripedInputStream.resetCurStripeBuffer(DFSStripedInputStream.java:118) at ...
Hi Reinhard, I have undone the offending changeset in xine-lib as per your explanation there. http://sourceforge.net/mailarchive/message.php?msg_name=4A15672E.5090908%40gmx.de Now, zapping time better. What is in your opinion the optimum buffer settings for vdr-xine and for .xine/config ? (I have a Hauppage S2-HD) These are my current settings: vdr/setup.conf xine.modeLiveTV.prebufferFrames = 11 xine.modeLiveTV.prebufferHysteresis = 4 .xine/config # number of audio buffers engine.buffers.audio_num_buffers:460 # number of video buffers engine.buffers.video_num_buffers:250 # number of video frames engine.buffers.video_num_frames:22 ...
Research Report on Global pH Buffer Market Professional Survey Report 2017. The Report includes market price, demand, trends, size, Share, Growth, Forecast, Analysis & Overview.
Hi Dima, K+ and Cl- (as maybe phosphate, too) are easiest to determine by subjecting a diluted aliquot to automated urine or serum analysis in the clinical chemistry lab of a hospital. Hoping that Gu doesnt interfere though. Usually, the machine will give you NH4+ and Na+ in the same run. But acetate? no idea.if youll get it there. K+ also should be able to be determined gravimetrically using SDS :) if there are lots present (add excess NaSDS, cool, filter through pre-weighted paper or collect by centrifugation in pre weighted tube, wash precipitate with NaSDS, allow to dry, weigh again) Assuming all volatiles present are water and ipropOH, one might distill the stuff and measure density of the condensate comparing against a standard curve. Unless there is ammonia present (NH4Cl and NH4OAc are volatile). If GuX is the same - no idea, but easily to be tested. More thoughts about acetate? might be concluded from potassium and sodium... does it form any insoluble precipitates making it accessible ...
BioAssay record AID 28475 submitted by ChEMBL: Hydrolytic parameter (K) was calculated at pH 7.4 in 0.1 M phosphate buffer (25 degrees Celsius).
How to choose innodb_buffer_pool_size in MySQL?, What is MySQL innodb_buffer_pool_size?, Do I need to change MySQL innodb_buffer_pool_size?, What are the recommendations for innodb_buffer_pool_size in MySQL?, What are the best practices for configuring innodb_buffer_pool_size in MySQL?, How to MySQL innodb_buffer_pool_size?, What is the best value for MySQL innodb_buffer_pool_size?, How to choose MySQL innodb_buffer_pool_size?, What is the optimal value for MySQL innodb_buffer_pool_size?, How large should be the MySQL innodb_buffer_pool_size?, innodb_buffer_pool_size, Why InnoDB buffer pool?, What is there inside MySQL InnoDB buffer pool?, MyISAM is using Operating System file cache to cache data that queries are reading over and over again. InnoDB handles caching itself, What is there inside MySQL InnoDB buffer pool?, Data caching - InnoDB data pages, Indices caching - index data, Buffering data - Dirty pages, Internal structures, InnoDB buffer pool, Adaptive Hash Index, row level locks, InnoDB pages,
It is not technically correct to say that a window displays the contents of a file , rather that each window displays the contents of a buffer . A buffer is an object that contains data from the point of view of the editor, whereas a file contains data from the point of view of the operating system. A buffer is a temporary storage area used by the editor to hold the contents of a file while the process of editing is taking place. When editing has finished the contents of the buffer can then be written to the appropriate file. When the user exits from the editor, no information concerning buffers or windows is saved.. A buffer is often displayed in its own window, although it is also possible for many buffers to be associated with a single window, and for a single buffer to be displayed in more than one window.. In most cases, there is one buffer for each file that is accessed, but sometimes there is more than one buffer for a single file. There are also some buffers (such as the Echo Area, which ...
alexandre -- to restore the window layout in your emacs frame, you can run M-x desktop-frame-save first, and then after youre finished with the maximized version you can do a M-x desktop-read followed by a M-x load-file emacs.frx. also, a frame (an m$windows window) is what contains emacs windows (these look like window panes) and any emacs buffer can be displayed in any emacs window (pane). also killing an emacs buffer doesnt touch the file which was copied into that buffer. emacs deals with frames, windows, buffers, and files separately so that you have a bit more control over things if you want. cheers. -- chuck Kevin Dziulko wrote: , , You can maximize the window you are currently in with C-x 1 which runs , delete-other-windows. This just hides the other buffers, they are not , deleted or destroyed dispite the name. , , There isnt a restore command. Youd have to use C-x 2 or and then load , another buffer in the new or current window with the buffers menu. , , ,From: Alexandre Brillant ...
The oxidation mechanism of hematoxylin was studied in phosphate buffers and 0.1 M KCl by cyclic voltammetry and UV-Vis spectroscopy under deaerated conditions. The redox potential of hematoxylin in buffered solution strongly depends on pH. A two electron oxidation is preceded by deprotonation. The homogeneous rate of deprotonation process of hematoxylin in 0.1 M phosphate buffer is kd = (2.5 ± 0.1) × 104 s-1. The cyclic voltammetry under unbuffered conditions shows the distribution of various dissociation forms of hematoxylin. The dissociation constants pK1 = 4.7 ± 0.2 and pK2 = 9.6 ± 0.1 were determined using UV-Vis spectroscopy. The final oxidation product was identified by gas chromatography with mass spectrometry detection as hemathein. The distribution of oxidation products differs under buffered and unbuffered conditions. The dye degradation in natural unbuffered environment yields hemathein and hydroxyhematoxylin, which is absent in buffered solution.. Keywords: Hematoxylin; ...
Data blocks being read by DBMS from the hard drive are stored in the main memory in a fixed number of pre-allocated buffers. Each buffer can hold one data block. Each buffer can be either free (does not contain any useful information) or occupied by some data. When DBMS is going to read data block from the hard drive it has to decide which buffer to use for data storing. If there are any free buffers, then one of them is used for that purpose. If there are no free buffers, then one of the occupied buffers has to be flushed to become free, unless it was locked by some part of DBMS ...
A mutable array of bytes that can be passed to foreign functions.. The buffer is represented by a record, where the record contains the raw buffer and the start/end points of the filled portion. The buffer contents itself is mutable, but the rest of the record is immutable. This is a slightly odd mix, but it turns out to be quite practical: by making all the buffer metadata immutable, we can have operations on buffer metadata outside of the IO monad.. The live elements of the buffer are those between the ...
In other words, we feel the track record of the people and the products at Thistle will stand up to the challenges that lie ahead. We invite you to test our commitment at all times.. Remember when youre happy, were delighted!. We would like to thank you for taking time to consider us for your valued business. Please dont hesitate to call us if we can be of assistance.We now have a network of seven sales representatives throughout the UK who are capable of providing full technical support on all the products listed. Call 01698 338844 should you require a visit from one of our team.. ...
Serial dilution of the ligand in assay buffer should not introduce any changes in buffer composition except the ligand concentration itself. For instance, if the ligand is dissolved in DMSO, it is important to perform the serial dilution in buffer containing the same amount of DMSO. In rare instances, the ligand titration significantly changes the experimental conditions. An appropriate counter-titration may then be useful to control for buffer effects. For example, in case the ligand is a lipid, it may help to counter-titrate a second, non- binding lipid in order to keep the overall lipid concentration constant throughout the experiment. Similarly, when investigating ion binding, try counter-titrating a similar ion to keep the ionic strength of the buffer constant. Alternatively, perform a Control Experiment with a slightly changed system like a non-binding ligand analogue.. ...
In molecular biology, TBE and TAE buffers are often used in procedures involving nucleic acids, the most common being agarose and polyacrylamide gel electrophoresis. Tris-acid solutions are effective buffers for the slightly basic conditions that keep DNA deprotonated and soluble in water. EDTA is a chelating agent for divalent cations, particularly magnesium (Mgsub2+). As these ions are necessary co-factors for many enzymes, including contaminant nucleases, one task of EDTA is to protect the nucleic acids against enzymatic degradation by nucleases. However, since Mgsub2+ is also a co-factor for many DNA-modifying enzymes such as restriction enzymes and DNA polymerases, its concentration in TBE or TAE buffers is generally kept low. Borate is a strong inhibitor for many enzymes, which makes its presence in TBE buffer very popular: the DNA sample run in a TBE buffer can better keep its integrity, which suits the purpose of many agarose gel electrophoreses runs, i.e. to analyze the size of DNA fragments.
Phosphate Buffer Ph7 found in: Phosphate Buffer pH 7, Phosphate Buffer, pH 7, D1253, BUFFER, PHOSPHATE pH 7.0, Buffer solution pH 7.00, Phosphate Buffer,..
Is there a way in Pic basic pro to empty the buffers on the SFE Logomatic if they are only partially filled? I do not send enough data to the logomatic for it to empty for it the fill the buffer and log on its own, so I end up losing some when I cut the power. This used in remote data collection so I cannot push the STOP button to empty them. Thank ...
Description: Hi dear experts, This report intended to clarify situation where i cant find any valuable information related to buffer pool size. All articles are about calculating gold size for buffer pool. It is great to have 80% of physical memory as buffer pool. OK. So the general description is -, I can start MySQL with 300GB buffer pool size in my 16G laptop Config: innodb_buffer_pool_size=300G innodb_buffer_pool_instances=64 Started as: 2016-01-05 15:23:58 16211 [Note] InnoDB: Initializing buffer pool, size = 300.0G 2016-01-05 15:24:31 16211 [Note] InnoDB: Completed initialization of buffer pool I believe that i can give much more pool size if I could increase buffer pool instances from maximum 64. For eg, 300G with 8 buffer pool instances will fail. With 350G: 2016-01-05 13:04:47 13232 [Note] InnoDB: Initializing buffer pool, size = 350.0G InnoDB: mmap(6009651200 bytes) failed; errno 22 2016-01-05 13:05:27 13232 [ERROR] InnoDB: Cannot allocate memory for the buffer pool 2016-01-05 ...
static inline __attribute__ ((nonnull (1))) void * alloc_buffer_alloc_bytes (struct alloc_buffer *buf, size_t length) { @@ -302,9 +302,13 @@ __alloc_buffer_next (struct alloc_buffer *buf, size_t align) alloc_buffer_alloc returns the same pointer). Note that the buffer is still aligned according to the requirements of TYPE. The effect of this function is similar to allocating a zero-length array from - the buffer. */ + the buffer. It is possible to use the return pointer to write to + the buffer and consume the written bytes using + alloc_buffer_alloc_bytes (which does not change the buffer + contents), but the calling code needs to perform manual length + checks using alloc_buffer_size ...
Use our Gaylord Archival® Unbuffered Shredded Tissue to cushion ornaments and other breakables or to pad small textiles such as gloves. Stuff it into stockinette tubing to make soft, round cushions for padding folded textiles.
Tissue samples are fixed with 2-4% Paraformaldehyde in 0.1M phosphate buffer, dehydrated through a graded series of ethyl alcohols and embedded in Unicryl (Electron Microscopy Sciences, Hatfield,PA). Thin sections (70-90nm) are mounted on Formvar/carbon coated nickel grids. After rinsing (see note above) with 0.1M Phosphate buffer or PBS, the grids are placed into the Blocking buffer for a block/permeablization step of 30-45 minutes.. The grids are then placed in the primary antibody overnight at 4°C. During the immuno-labeling process, the grids are not allowed to dry out. The grids are rinsed with phosphate buffered saline (PBS) and then floated on drops of the appropriate secondary antibody attached with 10nm gold particles (AURION, Hatfield, PA) for two hours at room temperature. After rinsing with PBS, the grids are placed in 2.5% Glutaraldehyde in 0.1M Phosphate buffer for 15 minutes. After rinsed in distilled water, the grids are allowed to dry and then are stained for contrast with ...
This product is for research use only. It is not approved for use in humans, animals, or in vitro diagnostic procdures.. Gravity-flow Column Procedure for Antibody Purification for Protein L Agarose (also for protein A, G and A/G). A. Buffer composition. • Binding Buffer: 0.1M phosphate, 0.15M sodium chloride; pH 7.2 • Elution Buffer: 0.1M glycine, pH 2-3 or IgG Elution Buffer • Neutralization Buffer: 1M Tris, (pH 8.5) B. Immunoglobulin Purification Procedure (a column for 2 mL of protein L Agarose). 1. Equilibrate the Protein L agarose and reagents to room temperature before use. 2. Carefully pack the Protein L resin slurry (4mL) into the column. Equilibrate the Protein L column by adding 10mL of the Binding Buffer and allowing the solution to drain through the column. 3. Dilute sample at least 1:1 with Binding Buffer before applying onto the Protein L column to maintain optimal ionic strength and pH for binding. Note: If plasma is used, centrifuge the diluted sample at 10,000 × g for 20 ...
Acetate Buffer Ph 5.0 found in: Acetate, 1M buffer soln., pH, 5.0, low endotoxin, Acetate Buffer (1 M, pH 5.0), Acetate Buffer, TISAB I, Standardized,..
get_buffer and release_buffer is more suitable for how this codec works and can result in better performance in some playback situations. Signed-off-by: Reimar Döffinger ,Reimar.Doeffinger at gmx.de, --- libavcodec/c93.c , 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/libavcodec/c93.c b/libavcodec/c93.c index 1f4ed1f..2a36ed9 100644 --- a/libavcodec/c93.c +++ b/libavcodec/c93.c @@ -130,10 +130,13 @@ static int decode_frame(AVCodecContext *avctx, void *data, c93-,currentpic ^= 1; + if (newpic-,data[0]) + avctx-,release_buffer(avctx, newpic); + newpic-,reference = 1; newpic-,buffer_hints = FF_BUFFER_HINTS_VALID , FF_BUFFER_HINTS_PRESERVE , FF_BUFFER_HINTS_REUSABLE , FF_BUFFER_HINTS_READABLE; - if (avctx-,reget_buffer(avctx, newpic)) { + if (avctx-,get_buffer(avctx, newpic)) { av_log(avctx, AV_LOG_ERROR, reget_buffer() failed\n); return -1; } -- 1.7.7.1 ...
Flushes to the server, changes made to the buffering subsystem that are associated with the LOB referenced by the input locator. This routine will actually write the data in the buffer to the LOB in the database. LOB buffering must have already been enabled for the input LOB locator.. The flush operation, by default, does not free the buffer resources for reallocation to another buffered LOB operation. However, if you want to free the buffer explicitly, you can set the flag parameter to OCI_LOB_BUFFER_FREE.. If the client application intends to read the buffer value after the flush and knows in advance that the current value in the buffer is the desired value, there is no need to reread the data from the server.. The effects of freeing the buffer are mostly transparent to the user, except that the next access to the same range in the LOB involves a round- trip to the server, and also the cost of acquiring buffer resources and initializing it with the data read from the LOB. This option is ...
Super-resolution imaging methods have revolutionized fluorescence microscopy by revealing the nanoscale organization of labeled proteins. In particular, single-molecule methods such as Stochastic Optical Reconstruction Microscopy (STORM) provide resolutions down to a few tens of nanometers by exploiting the cycling of dyes between fluorescent and non-fluorescent states to obtain a sparse population of emitters and precisely localizing them individually. This cycling of dyes is commonly induced by adding different chemicals, which are combined to create a STORM buffer. Despite their importance, the composition of these buffers has scarcely evolved since they were first introduced, fundamentally limiting what can be resolved with STORM. By identifying a new chemical suitable for STORM and optimizing the buffer composition for Alexa-647, we significantly increased the number of photons emitted per cycle by each dye, providing a simple means to enhance the resolution of STORM independently of the optical
This is a very important report because we see three object types (tables, indexes, and partitions), and we also see the sub-sets of the DEFAULT pool for KEEP and RECYCLE. Also, note that all indexes are defined in the largest supported block size (db_32k_cache_size), and multiple buffer pools of 4K, 8K, 16K and 32K sizes are defined. The output of this script is somewhat confusing because of the repeated DEFAULT buffer pool name. This is misleading because the KEEP and RECYCLE buffer pools are sub-sets of db_cache_size and can ONLY accommodate objects with the DEFAULT db_block_size. Conversely, any block sizes that are NOT the default db_block_size, go into the buffer pool named DEFAULT. As you can see from the output listing, there are really 6 mutually exclusive and independently-sized buffer pools, and four of them are called DEFAULT. It is valuable to run this report repeatedly because the Oracle data buffers are dynamic and constantly changing. Running this script frequently allows us to ...
Vegetated buffers are used extensively to manage wetland-dependent wildlife. Despite widespread application, buffer utility has not been experimentally validated for most species. To address this gap, we conducted a six-year, landscape-scale experiment, testing how buffers of different widths affect the demographic structure of two amphibian species at 11 ephemeral pools in a working forest of the northeastern U.S. We randomly assigned each pool to one of three treatments (i.e., reference, 100m buffer, 30m buffer) and clearcut to create buffers. We captured all spotted salamanders and wood frogs breeding in each pool and examined the impacts of treatment and hydroperiod on breeding-population abundance, sex ratio, and recapture rate. The negative effects of clearcutting tended to increase as forest-buffer width decreased and be strongest for salamanders and when other stressors were present (e.g., at short-hydroperiod pools). Recapture rates were reduced in the 30m, but not 100m, treatment. Throughout
you have a 0.200L of solution containing 250mM phosphate buffer, pH 6.8. An equivalent amount of HCl/NaOH with respect to the total amount of phosphate in the buffer --, mmol of NaH2PO3 + mmol of NaH2PO4 = 50 mmoles. What would ...
fs: introduce some page/buffer invariants It is a bug to set a page dirty if it is not uptodate unless it has buffers. If the page has buffers, then the page may be dirty (some buffers dirty) but not uptodate (some buffers not uptodate). The exception to this rule is if the set_page_dirty caller is racing with truncate or invalidate. A buffer can not be set dirty if it is not uptodate. If either of these situations occurs, it indicates there could be some data loss problem. Some of these warnings could be a harmless one where the page or buffer is set uptodate immediately after it is dirtied, however we should fix those up, and enforce this ordering. Bring the order of operations for truncate into line with those of invalidate. This will prevent a page from being able to go !uptodate while were holding the tree_lock, which is probably a good thing anyway. Signed-off-by: Nick Piggin ,[EMAIL PROTECTED], Signed-off-by: Andrew Morton ,[EMAIL PROTECTED], Signed-off-by: Linus Torvalds ,[EMAIL ...
buffer amplifier [电子] 缓冲放大器 ; 放大器 ; 追加设置缓冲增幅器 ; 缓冲放年夜器 Buffer Pool [计] 缓冲池 ; 缓存池 ; 使用多个 buffer fund [会计] 缓冲基金 ; [金融] 平准基金 ; 缓冲基金平准基金 ; 缓冲基金 buffer register [计] 缓冲寄存器 ; 缓冲存放器 ; 缓冲寄放器 ; 缓冲缓存器 data buffer [计] 数据缓冲器 ; 数据缓冲区 ; 数据缓存 ; 数据缓冲 Screen Buffer 屏幕缓冲 ; 屏幕缓冲器 ; 屏幕缓冲区 ; 荧幕缓以及冲突 spring buffer [机] 弹簧缓冲器 ; 弹簧绶冲器 ; 蓄能型缓冲器 ; 弹簧缓冲胶 buffer battery 缓冲电池 ; 浮充电池 ; 缓冲电池组 ; [电] 缓冲蓄电池 oil buffer 液压缓冲器 ; 油缓冲器 ; 油压避震器 ...
Get an answer for How do you calculate the molarity of NaOH? I am just very confused on which formula I use to calculate.I am given the equation for calculating the concentration of NaOH with (molarity of acid)(volume of acid)(#hydrogen ions)in acid =(molarity of base )(volume of base)(# of hydroxide ions) in base. and find homework help for other Science questions at eNotes
A node in a packet-switching data-transmission network has a processor distributing incoming messages or packets from a receiving buffer to transmitting buffers selected according to routing data established by an updating circuit which algebraically combines incremental delays with respective path delays to obtain total delays assigned to message transmission from the processor over respective transmitting buffers and associated outgoing transmission paths. The increment delays assigned to the respective buffers are calculated by a delay estimator utilizing data from the processor including packet-service times and arrival and departure times of the packets in the various buffers, the path delays assigned to routes extending from the respective transmitting buffers to a terminal node being communicated to the updating circuit via the processor from nodes connected downstream of the transmitting buffers.
A buffer is a mixture of molecules that release or bind H+ in order to maintain a relatively stable pH. Note that the function of a buffer is NOT to keep a solution neutral (at pH 7); its function is to minimize the change in pH when base or acid is added to the solution. Also note that there are many different buffers, and each one will stabilize the pH of a solution only within a specific pH range. One buffer may be effective within a range of pH 2 to pH 6, while another may be effective within a range of pH 10 to pH 12. Beyond its buffering range, a buffer no longer acts to stabilize the pH of the solution ...