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51.
Rivard C. J. Rodriguez J. B. Nagle N. J. Self J. R. Kay B. D. Soltanpour P. N. Nieves R. A. 《Applied biochemistry and biotechnology》1995,(1):125-135
Tuna processing wastes (sludges high in fat, oil, and grease [FOG]) and municipal solid waste (MSW) generated on Tutuila Island,
American Samoa, represent an ongoing disposal challenge. The biological conversion of the organic fraction of these wastes
to useful products, including methane and fertilizer-grade residue, through anaerobic high-solids digestion is currently in
scale-up development. The suitability of the anaerobic digestion residues as a soil amendment was evaluated through extensive
chemical analysis and greenhouse studies using corn as an indicator crop. Additionally, native Samoan soil was used to evaluate
the specific application rates for the compost. Experiments established that anaerobic residues increase crop yields in direct
proportion to increases in the application rate. Additionally, nutrient saturation was not demonstrated within the range of
application rates evaluated for the Samoan soil. Beyond nutrient supplementation, organic residue amendment to Samoan soil
imparts enhanced water- and nutrient-binding capacities. 相似文献
52.
53.
Kehlbeck JD Hagerman ME Cohen BD Eliseo J Fox M Hoek W Karlin D Leibner E Nagle E Nolan M Schaefer I Toney A Topka M Uluski R Wood C 《Langmuir : the ACS journal of surfaces and colloids》2008,24(17):9727-9738
Laponite films provide versatile inorganic scaffolds with materials architectures that direct the self-assembly of CdSe quantum dots (QDs or EviTags) and catalytic surfaces that promote the in situ polymerization of polyaniline (PANI) to yield novel nanocomposites for light emitting diodes (LEDs) and solar cell applications. Water-soluble CdSe EviTags with varying, overlapping emission wavelengths in the visible spectrum were incorporated using soft chemistry routes within Na-Laponite host film platforms to achieve broadband emission in the visible spectrum. QD concentrations, composition and synthesis approach were varied to optimize photophysical properties of the films and to mediate self-assembly, optical cascading and energy transfer. In addition, aniline tetramers coupled to CdSe (QD-AT) surfaces using a dithioate linker were embedded within Cu-Laponite nanoscaffolds and electronically coupled to PANI via vapor phase exposure. Nanotethering and specific host-guest and guest-guest interactions that mediate nanocomposite photophysical behavior were probed using electronic absorption and fluorescence spectroscopies, optical microscopy, AFM, SEM, powder XRD, NMR and ATR-FTIR. Morphology studies indicated that Lap/QD-AT films synthesized using mixed solvent, layer by layer (LbL) methods exhibited anisotropic supramolecular structures with unique mesoscopic ordering that affords bifunctional networks to optimize charge transport. 相似文献
54.
J.F. Nagle S. Tristram-Nagle H. Takahashi I. Hatta 《The European Physical Journal B - Condensed Matter and Complex Systems》1998,1(4):399-400
This comment shows that data recently reported [#!ref1!#] as being seemingly in conflict with earlier data [#!ref2!#] are,
in fact, in excellent agreement. Together, both studies confirm that the kinetics of the subgel phase transformation in dipalmitoylphosphatidylcholine
(DPPC) lipid bilayers obeys Kolmogorov-Avrami (K-A) theory [#!ref3!#,#!ref4!#] with an anomalously low effective dimensionality.
Received: 11 December 1997 / Accepted: 28 January 1998 相似文献
55.
Szemerédi's regularity lemma proved to be a powerful tool in extremal graph theory. Many of its applications are based on the so-called counting lemma: if G is a k-partite graph with k-partition V1∪?∪Vk, |V1|=?=|Vk|=n, where all induced bipartite graphs G[Vi,Vj] are (d,ε)-regular, then the number of k-cliques Kk in G is . Frankl and Rödl extended Szemerédi's regularity lemma to 3-graphs and Nagle and Rödl established an accompanying 3-graph counting lemma analogous to the graph counting lemma above. In this paper, we provide a new proof of the 3-graph counting lemma. 相似文献
56.
Nagle PS Quinn SJ Kelly JM O'Donovan DH Khan AR Rodriguez F Nguyen B Wilson WD Rozas I 《Organic & biomolecular chemistry》2010,8(24):5558-5567
Biophysical studies have been carried out on a family of asymmetric guanidinium-based diaromatic derivatives to assess their potential as DNA minor groove binding agents. To experimentally assess the binding of these compounds to DNA, solution phase biophysical studies have been performed. Thus, surface plasmon resonance, UV-visible spectroscopy and circular and linear dichroism have been utilized to evaluate binding constants, stoichiometry and mode of binding. In addition, the thermodynamics of the binding process have been determined by using isothermal titration calorimetry. These results show significant DNA binding affinity that correlates with the expected 1?:?1 binding ratio usually observed for minor groove binders. Moreover, a simple computational approach has been devised to assess the potential as DNA binders of this family of compounds. 相似文献
57.
Munshi G Mustafa Sudhir Raniwala T Awes B Rai RS Bhalerao JG Contreras RV Gavai SK Ghosh P Jaikumar GC Mishra AP Mishra H Mishra B Mohanty J Nayak J-Y Ollitrault SC Phatak L Ramello R Ray PK Sahu AM Srivastava DK Srivastava VK Tiwari 《Pramana》2006,67(5):961-981
This is the report of Heavy Ion Physics and Quark-Gluon Plasma at WHEPP-09 which was part of Working Group-4. Discussion and
work on some aspects of quark-gluon plasma believed to have created in heavy-ion collisions and in early Universe are reported. 相似文献
58.
59.
Noah D. Weiss Nicholas J. Nagle Melvin P. Tucker Richard T. Elander 《Applied biochemistry and biotechnology》2009,155(1-3):115-125
Pretreatment experiments were carried out to demonstrate high xylose yields at high solids loadings in two different batch pretreatment reactors under process-relevant conditions. Corn stover was pretreated with dilute sulfuric acid using a 4-l Steam Digester and a 4-l stirred ZipperClave® reactor. Solids were loaded at 45% dry matter (wt/wt) after sulfuric acid catalyst impregnation using nominal particle sizes of either 6 or 18 mm. Pretreatment was carried out at temperatures between 180 and 200 °C at residence times of either 90 or 105 s. Results demonstrate an ability to achieve high xylose yields (>80%) over a range of pretreatment conditions, with performance showing little dependence on particle size or pretreatment reactor type. The high xylose yields are attributed to effective catalyst impregnation and rapid rates of heat transfer during pretreatment. 相似文献
60.
AP Balachandran 《Pramana》2002,59(2):359-368
We review certain emergent notions on the nature of space-time from noncommutative geometry and their radical implications.
These ideas of space-time are suggested from developments in fuzzy physics, string theory, and deformation quantization. The
review focuses on the ideas coming from fuzzy physics. We find models of quantum space-time like fuzzy S
4 on which states cannot be localized, but which fluctuate into other manifolds like CP3. New uncertainty principles concerning such lack of localizability on quantum space-times are formulated. Such investigations
show the possibility of formulating and answering questions like the probability of finding a point of a quantum manifold
in a state localized on another one. Additional striking possibilities indicated by these developments is the (generic) failure
of CPT theorem and the conventional spin-statistics connection. They even suggest that Planck’s ‘constant’ may not be a constant,
but an operator which does not commute with all observables. All these novel possibilities arise within the rules of conventional
quantum physics, and with no serious input from gravity physics. 相似文献