View allAll Photos Tagged Kernel
Mes voyants ABS en kernel panic. Il est possible d'entendre le moteur du freinage assisté en activité comme si la commande était actionnée, et bien sûr elle ne l'est pas.
Cela s'est conclu par le remplacement de la centrale ABS :(
Prise avec mon téléphone portable (je savais bien que ça servirait un jour ce mode vidéo)
The office loves popcorn. We have gone old school. The whole process, which involves waiting for it to heat, flipping the bowl when done, etc.. reminds me of film processing.
Only the second time I've ever managed to remove the kernel whole from the shell. The trick is to get the split line perpendicular to the natural split.
Longitudinal section through a Zea mays kernel - the part below the diagonal line is the endosperm, the part above it is the embryo.
This picture was taken with the SuperMacro setting on the Canon PowerShot SX10 IS and the slide placed on a light table. I put the lens right on top of the slide for the shortest distance possible when taking the picture. Quite amazing for a point-and-shoot camera! Would you believe this was taken without a microscope and even without an added macro lens? Granted, you can get a larger and more detailed image using the Raynox lens, but this works just fine for use as teaching and testing material. (Big hint for my students there... *LOL*)
My iMac got a kernel panic when trying to create a Boot Camp partition. Luckily, there was no corruption but now the Macintosh HD icon no longer appears on the desktop. I'm going to have to format the entire computer and start again.
Whoever made up the story that Mac is less hassle than PC obviously hasn't used a Mac.
Wheat grain samples, with 20 kernels in each, showing various levels of damage due to stem rust (Puccinia graminis), from unaffected (left), to 100% damage (right). This shows the effect of the disease in loss of yield and grain quality. The sample on the far left shows healthy, plump grain that has been protected from rust, for example by resistance or by chemical control. The progression from left to right shows increasing levels of disease. Arriving at the sample on the far right, these small and shriveled grains are very likely to be lost during threshing and have almost no flour content.
In this case the stem rust infection is by the virulent Ug99 race and the samples were taken from the ongoing screening program at the Njoro research station in Kenya. The station is part of the Kenya Agricultural Research Institute (KARI), which is working in partnership with CIMMYT to identify sources of resistance to Ug99. This strain of the disease, which emerged in Uganda in 1999, is already endemic in the area, making it possible to use Njoro as a testing ground for wheats from all over the world. More than 30,000 wheat lines are now being screened each year.
For more information on the disease, see CIMMYT's Wheat Doctor: wheatdoctor.cimmyt.org/en/pests-a-diseases/list/122?task=....
For more on CIMMYT's ongoing work on Ug99, see the following e-news stories:
2010, "Planting for the future: New rust resistant wheat seed on its way to farmers": www.cimmyt.org/newsletter/231-2010/716-planting-for-the-f....
October 2009, "From Cairo to Kabul: Rust resistant wheat seed just in time": www.cimmyt.org/newsletter/38-2009/460-from-cairo-to-kabul....
December 2008, "Report from the field: Wheat stem rust resistance screening at Njoro, Kenya": www.cimmyt.org/newsletter/37-2008/110-genetic-resources-p....
December 2006, "Threat level rising": www.cimmyt.org/newsletter/82-2006/263-threat-level-rising.
September 2005, "The World’s Wheat Crop is Under Threat from New Disease": www.cimmyt.org/newsletter/86-2005/331-the-worlds-wheat-cr....
Photo credit: Petr Kosina/CIMMYT.
Quadratic Hawkes processes for financial prices. Blanc, Donier, Bouchaud arxiv.org/abs/1509.07710 #q-fin
Time to share this year's Indian Corn. I bought these lovely ears in Lancaster County in October, 2012. The color & variety was so delightful! My mom displayed Indian corn each fall, during my growing-up years. I'm trying to get my house in order & resume some kind of normal routine. One of three images--suitable for fall wallpaper--November 9, 2012.
Dried wheat kernels from Sweden. These are about 38 years old. The Swedes weave the wheat into decorative wall art, and this is one I received as a gift when I lived in Sweden back in the early 1970's. Believe it or not, when I lived on a farm in Sweden I sometimes helped with the harvesting of the wheat by driving a tractor....oh those were days long ago...
INFORMATION ON WHEAT:
Wheat (Triticum spp.), is a worldwide cultivated grass from the Levant region of the Middle East. Globally, after maize, wheat is the second most-produced food among the cereal crops just above rice. Wheat grain is a staple food used to make flour for leavened, flat and steamed breads; cookies, cakes, breakfast cereal, pasta, juice, noodles and couscous; and for fermentation to make beer, alcohol, vodka or biofuel. Wheat is planted to a limited extent as a forage crop for livestock, and the straw can be used as fodder for livestock or as a construction material for roofing thatch. Although wheat supplies much of the world's dietary protein and food supply, as many as one in every 100 to 200 people has Coeliac disease, a condition which results from an immune system response to a protein found in wheat: gluten (based on figures for the United States).
Wheat originated in Southwest Asia in the area known as the Fertile crescent. The genetic relationships between wild and domesticated populations of both einkorn and emmer wheat indicate that the most likely site of domestication is near Diyarbakır in Turkey.
Wild wheats were domesticated as part of the origins of agriculture in the Fertile Crescent. Cultivation and repeated harvesting and sowing of the grains of wild grasses led to the domestication of wheat through selection of mutant forms with tough ears that remained intact during harvesting, larger grains, and a tendency for the spikelets to stay on the stalk until harvested. Because of the loss of seed dispersal mechanisms, domesticated wheats have limited capacity to propagate in the wild.
The exact timing of the first appearance of domesticated wheats is currently uncertain, but is either in the PPNA period (9800-8800 cal BC) or the early-mid PPNB (8800-7500 cal BC). Domesticated einkorn and emmer wheat has been identified at three PPNA sites in the northern Levant, Iraq ed-Dubb, Jericho and Tell Aswad, but both the dating and the domesticated status of these cereals is disputed. Domesticated wheats (and other Neolithic founder crops) are unambiguously present at early-mid PPNB sites in the northern Levant, such as Ain Ghazal, Abu Hureyra and Tell Aswad, and in southeast Turkey at Cafer Höyük and Çayönü. As a round figure, it is correct to say that wheats have been domesticated for about 10,000 years.
The cultivation of wheat began to spread beyond the Fertile Crescent during the Neolithic period, reaching the Aegean by 8500 cal BC and the Indian subcontinent by 6000 cal BC. By 5,000 years ago, wheat had reached Ethiopia, Great Britain, Ireland and Spain. A millennium later it reached China. Claims have been made for independent domestication of wheat outside the fertile crescent, but these lack evidence of the presence of wild wheats or of early domesticated wheat.
Three thousand years ago wheat was grown in the southern Oregon peninsula. Agricultural cultivation with horse-drawn plows increased cereal grain production, as did the use of seed drills to replace broadcast sowing in the 18th century. Yields of wheat continued to increase, as new land came under cultivation and with improved agricultural husbandry involving the use of fertilizers, threshing machines and reaping machines, tractor-drawn cultivators and planters, and varieties adapted to intensive cultivation (see green revolution and Norin 10 wheat).
Raw wheat can be powdered into flour; germinated and dried creating malt; crushed and into cracked wheat; parboiled (or steamed), dried, crushed and de-branned into bulgur; or processed into semolina, pasta, or roux. Wheat is a major ingredient in such foods as bread, porridge, crackers, biscuits, Muesli, pancakes, pies, pastries, cakes & cupcakes, cookies, muffins, rolls, doughnuts, gravy, boza (a fermented beverage), and breakfast cereals (e.g. Wheatena, Cream of Wheat, Shredded Wheat, and Wheaties).
100 grams of hard red winter wheat contain about 12.6 grams of protein, 1.5 grams of total fat, 71 grams of carbohydrate (by difference), 12.2 grams of dietary fiber, and 3.2 mg of iron (17% of the daily requirement); the same weight of hard red spring wheat contains about 15.4 grams of protein, 1.9 grams of total fat, 68 grams of carbohydrate (by difference), 12.2 grams of dietary fiber, and 3.6 mg of iron (20% of the daily requirement). Gluten, a protein found in wheat (and other Triticeae), cannot be tolerated by people with celiac disease (an autoimmune disorder in ~1% of Indo-European populations).
Source: Wikipedia
An unpopped popcorn kernel.
Raynox DCR-250 mounted on my Panasonic FZ8. Paper plate diffuser used with onboard flash.
This Deutches Telekom payphone located along Unter den Linden in Berlin was running Linux and had crashed, showing a clearly legible stack backtrace sideways on the monitor.
Kernel stripper at the Horne Creek Farm. Horne Creek is a living history farm from the early 1900's. It is one of my favorite hidden gems in the Piedmont area of North Carolina.
Yum! Care to read about it? You may do so right here:
dkmart.typepad.com/dkm-art/2012/05/illustration-friday-su...
A corn cob (ear) on the stalk, with the covering pulled back to expose the kernels almost full developed.
Wheat kernels infected with Karnal bunt (Tilletia indica). Karnal bunt is not easily detected prior to harvest, since only a few kernels per spike are usually affected, but following harvest diseased kernels are easily observed. A mass of black teliospores replaces a portion of the endosperm; the pericarp may be intact or ruptured. Diseased kernels also give off a fetid or fishy odor when crushed.
For more information, see CIMMYT's Wheat Doctor: wheatdoctor.cimmyt.org/index.php?option=com_content&t....
Photo credit: CIMMYT.