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排序方式: 共有330条查询结果,搜索用时 13 毫秒
91.
Gershon Kurizki Nir Bar-Gill Jens Clausen Michal Kolář Tomáš Opatrný 《Quantum Information Processing》2006,5(6):463-479
We show that if internal and momentum states of an interfering particle are entangled, then by measuring its internal state we may infer both path (corpuscular) and phase (wavelike) information with practically any precision, without the complementarity constraints of which-path detection. This holds also for multipath–multistate configurations, allowing large amounts of information to be stored in a single particle. We further show that highly complex particles (e.g., molecules or macroscopic bodies) subject to fields that couple (entangle) their internal and translational (momentum) states may undergo an irresversible randomization (diffusion), manifest by the disappearance of the interference pattern, as if they are subject to decoherence. Thus, translational-internal entanglement can give rise to anomalies in quantum wavepacket propagation. 相似文献
92.
Michael Bse I. MüNir Berkmen Werner Sitzmann 《European Journal of Lipid Science and Technology》1997,99(1):2-10
Biological Exhaust Air Cleaning. Production and refining of oils and fats from vegetable and animal raw materials generate –sometimes to a serious extent – organically polluted exhaust gases. Relatively new compared to conventional physico-chemical methods for air purification is the conversion of undesired impurities with the help of microorganisms within the scope of Biological Exhaust Air Cleaning. Depending on the objectives one of the systems biofilter. bioscrubber or biological trickling bed reactor can be chosen. This paper describes the present state of technology and the latest developments in the field of biological air refining and elucidates working principle and potential applications of the systems mentioned above. A procedure is presented aiming at a systematic election of an optimal air refining process. 相似文献
93.
Water pricing in Israel led the water situation to become almost disastrous. This was true for both quantity and quality issues. This paper deals with a proposed price reform and its implication for two issues. The first is the optimal timing to switch to a backstop technology--desalinating water in this case. Economic analysis shows that combining both demand and supply management can postpone desalinization projects by more than 20 years. The second issue deals with changing the price block schedule in order to compensate farmers for a given price change. Increasing the marginal price of water to its real value damages the marginal users. The paper tries to calculate and proposes a new price block schedule that will leave the farmers as well off as they were before the change. 相似文献
94.
95.
Deblurring of color images corrupted by impulsive noise. 总被引:1,自引:0,他引:1
Leah Bar Alexander Brook Nir Sochen Nahum Kiryati 《IEEE transactions on image processing》2007,16(4):1101-1111
We consider the problem of restoring a multichannel image corrupted by blur and impulsive noise (e.g., salt-and-pepper noise). Using the variational framework, we consider the L1 fidelity term and several possible regularizers. In particular, we use generalizations of the Mumford-Shah (MS) functional to color images and gamma-convergence approximations to unify deblurring and denoising. Experimental comparisons show that the MS stabilizer yields better results with respect to Beltrami and total variation regularizers. Color edge detection is a beneficial by-product of our methods. 相似文献
96.
Granot E Sternklar S Chayet H Ben-Ezra S Narkiss N Shahar N Sher A Tsadka S 《Applied optics》2005,44(23):4959-4964
For the first time, to our knowledge, a highly robust, high-bit-rate (10 Gbit/s) wavelength converter that is based on a narrow Brillouin filter is reported. The conversion takes place in a semiconductor optical amplifier (SOA) in a cross-gain-phase process. The SOA operates in a weak-modulation mode, and the exiting signal undergoes a dc reduction with a narrow spectral filter. In our system we perform spectrally narrow filtering by using a long Brillouin grating. 相似文献
97.
A 62-year-old white male suffering from plasmacytosis with monoclonal gammopathy developed gastrointestinal bleeding, microscopic hematuria, proteinuria and progressive azotemia. A renal biopsy demonstrated capillary wall thickening, mesangial hyperplasia, crescent formation and subepithelial humps. Serum immunoglobulin analysis showed IgG of lambda type. Serum complement, ANA, ASO titer and cryoglobulin were normal. It is suggested that proliferative glomerulonephritis with subepithelial humps should be added to forms of renal pathology that can be seen in plasma cell dyscrasias. 相似文献
98.
The relative weights of the gastro-intestinal segments and of some other internal organs from light and heavy breed chicks from hatching to 21 days of age were compared. 2. The relative weight of the duodenum and jejunum was higher in the light breed than in the heavy one, the reverse relationship was found for the ileum and caecum. 3. The relative growth of the pancreas, heart, cerebrum and cerebellum was greater in the light breed. 相似文献
99.
A. Nir 《Journal of Engineering Mathematics》1981,15(1):65-75
Summary A sphere in contact with a porous membrane can depart with non-zero velocity under the influence of a finite force. The flow field and the viscous force resisting the motion are evaluated by reducing the Stokes equations to a fourth-order ordinary differential equation through the use of conformal mapping. Explicit results are given for high and low membrane permeabilities by using regular and singular perturbation techniques respectively. 相似文献
100.
We investigated the morphological and cytochemical properties of mesothelial cells obtained from pleural and peritoneal effusions of patients with various diseases. The morphological features were studied by light and electron microscopy and by cytochemical methods. The different kinds of contact between mesothelial cells and their interaction with lymphocytes were observed and the transition of mesothelial cells to macrophages and/or fibroblasts was demonstrated. 相似文献