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711.
The reexamination of the branchiogenic muscles of the shoulder shows also in the Lowland Tapir, that the dorsal branch of the Ramus ext. of the N. accessorius innervates the three parts of the M. trapezius (Pars clavicularis, cervicalis and thoracalis), and the ventral branch innervates the two parts of the M. sternocleidomastoideus (Pars sternomandibularis and sternomastoidea). There is no Pars cleidomastoidea in the latter muscle. As common name for all muscles innervated by the Ramus ext. of the N. accessorius, the term M. cucullaris is proposed again. 相似文献
712.
Otto Aurich Gerhard Osske Klaus Pufahl Anneliese Romeike Hasso Rönsch Klaus Schreiber Günther Sembdner 《Genetic Resources and Crop Evolution》1965,13(1):621-714
Zusammenfassung 317 Pflanzenarten aus 73 Familien der einheimischen Flora und des Gaterslebener Sortiments wurden nach einem ausführlich beschriebenen Standardverfahren orientierend auf Alkaloide, Saponine, Triterpene und Sterine untersucht.
Summary 317 plant species from 73 families of the indigenous flora and of the sortiment in Gatersleben have been preliminarily investigated for alkaloids, saponins, triterpenes, and sterols, using a fully described standard procedure.
m 317 73 - «», «», «» «». .相似文献
713.
Manfred von Ardenne Gerhard Osske Klaus Schreiber Karl Steinfelder Rudolf Tümmler 《Genetic Resources and Crop Evolution》1965,13(1):101-113
Zusammenfassung Aus Blättern der KartoffelpflanzeSolanum tuberosum Aquila wurde außer Cycloartenol (I), 24-Methylen-cycloartanol (II) (?), Lophenol (III), 24-Methylen-(IV) und 24-Äthyliden-lophenol (V) in 0,05%iger Ausbeute (bezogen auf Blatt-Trockengew.) ein Steringemisch isoliert, das nach dem Molekül-Massenspektrum (Ionisierung durch Anlagerung energiearmer negativer Ladungsträger) aus etwa 49% -Sitosterin (VIII), 36% Stigmasterin (IX), 12% Cholesterin (VI) und 3% Campesterin (VII) zusammengesetzt ist. Weiterhin ließen sich die homologen n-Paraffine C25H52 bis C33H68 und iso-Paraffine C29H60 bis C33H68 (Hauptkomponente mit ca. 51% n-Hentriacontan) sowie geringe Mengen höherer aliphatischer Ketone, vor allem Tritriacontanon, gaschromatographisch bzw. molekülmassenspektrographisch nachweisen.
VII. Mitteilung: von Ardenne und Mitarb. (1965b).
Zugleich IV. Mitteilung der Reihe Molekül-Massenspektrographie von Naturstoffen. — III. Mitteilung: von Ardenne und Mitarb. (1965b).
Forschungsinstitut Manfred von Ardenne, Dresden-Weißer Hirsch.
Teil der Dissertation von G. Osske, Univ. Halle, 1963. 相似文献
Summary In addition to cycloartenol (I), 24-methylene-cycloartanol (II) (?), lophenol (III), 24-methylene-(IV) and 24-ethylidene-lophenol (V) a mixture of sterols has been isolated from leaves of the potato plantSolanum tuberosum Aquila (0,05% of the dry weight), which, according to our molecular mass spectrographic investigations employing negative ionization, contains approximately 49% -sitosterol (VIII), 36% stigmasterol (IX), 12% cholesterol (VI), and 3% campesterol (VII). Furthermore the homologous n-alkanes C25H52 to C33H68 and iso-alkanes C29H60 to C33H68 (the main component being n-triacontane with ca. 51%) as well as some higher aliphatic ketones, especially tritriacontanone, have been detected by gas-liquid chromatographic and molecular mass spectrographic methods.
am ¶rt;au Solanum tuberosum L., , (I), 24- (II) (?), (III), 24-- (IV) 24-- (V) ( 0,05% ). « -» ( ) 49%- (VIII), 36% (IX), 12% (VI) 3% (VII). () « -» - ( 2552 3368) - ( 2960 3368), 51%-, , .
VII. Mitteilung: von Ardenne und Mitarb. (1965b).
Zugleich IV. Mitteilung der Reihe Molekül-Massenspektrographie von Naturstoffen. — III. Mitteilung: von Ardenne und Mitarb. (1965b).
Forschungsinstitut Manfred von Ardenne, Dresden-Weißer Hirsch.
Teil der Dissertation von G. Osske, Univ. Halle, 1963. 相似文献
714.
715.
Maria Regina Gmach Klaus Kaiser Maurício Roberto Cherubin Carlos Eduardo Pellegrino Cerri Izaias Pinheiro Lisboa Ana Luisa Soares Vasconcelos Marcos Siqueira‐Neto 《Soil Use and Management》2021,37(1):126-137
Global demand for bioenergy increases interest in biomass‐derived fuels, as ethanol from sugarcane straw. However, straw is the main carbon source to soil and its removal reduces C input, affecting active fractions (dissolved organic carbon, DOC) and C storage. To quantify the effects of straw removal on DOC and C stocks, we built lysimeter system using soil (Rhodic Kandiudox) from sugarcane field. We evaluated four soil depths (1, 20, 50 and 100 cm) and four straw removal rates: no removal NR, medium MR, high HR and total TR, leaving 12, 6, 3 and 0 Mg/ha on the soil surface, respectively. After rainfall, drainage water was collected and analysed for DOC content. Soil C stocks were determined after the 17‐month. Total DOC released at 1‐cm depth amounted to 606, 500, 441 and 157 kg/ha in NR, MR, HR and TR, respectively. Net‐DOC suggests straw as the main source of DOC. Most of DOC in NR (50%) was retained within the 1–20 cm layer, resulting in higher C stock (10 Mg/ha) in the topsoil. In HR and MR, DOC retention was higher within 20–50 cm, suggesting differences in DOC composition. DOC in TR was 40% higher at 20 cm than at 1 cm, indicating C losses from topsoil. Low concentrations of DOC were found at 100‐cm depth, but representing 30% in TR. Straw removal for bioenergy production is sustainable, but we should leave at least 3 Mg/ha of straw to ensure DOC production and soil C storage, taking account the DOC contribution to key soil functions. 相似文献
716.
Objective To compare, ventilation using intermittent positive pressure ventilation (IPPV) with constant positive end‐expiratory pressure (PEEP) and alveolar recruitment manoeuvres (RM) to classical IPPV without PEEP on gas exchange during anaesthesia and early recovery. Study design Prospective randomized study. Animals Twenty‐four warm‐blood horses, weight mean 548 ± SD 49 kg undergoing surgery for colic. Methods Premedication, induction and maintenance (isoflurane in oxygen) were identical in all horses. Group C (n = 12) was ventilated using conventional IPPV, inspiratory pressure (PIP) 35–45 cmH2O; group RM (n = 12) using similar IPPV with constant PEEP (10 cmH2O) and intermittent RMs (three consecutive breaths PIP 60, 80 then 60 cmH2O, held for 10–12 seconds). RMs were applied as required to maintain arterial oxygen tension (PaO2) at >400 mmHg (53.3 kPa). Physiological parameters were recorded intraoperatively. Arterial blood gases were measured intra‐ and postoperatively. Recovery times and quality of recovery were measured or scored. Results Statistically significant findings were that horses in group RM had an overall higher PaO2 (432 ± 101 mmHg) than those in group C (187 ± 112 mmHg) at all time points including during the early recovery period. Recovery time to standing position was significantly shorter in group RM (49.6 ± 20.7 minutes) than group C (70.7 ± 24.9). Other measured parameters did not differ significantly. The median (range) of number of RMs required to maintain PaO2 above 400 mmHg per anaesthetic was 3 (1–8). Conclusion Ventilation using IPPV with constant PEEP and RM improved arterial oxygenation lasting into the early recovery period in conjunction with faster recovery of similar quality. However this ventilation mode was not able to open up the lung completely and to keep it open without repeated recruitment. Clinical relevance This mode of ventilation may provide a clinically practicable method of improving oxygenation in anaesthetized horses. 相似文献
717.
Martin J. Schmidt Holger Volk Melanie Klingler Klaus Failing Martin Kramer Nele Ondreka 《Veterinary radiology & ultrasound》2013,54(5):497-503
Premature closure of cranial base synchondroses has been proposed as the mechanism for brachycephaly in dogs and caudal occipital malformation syndrome (COMS) in Cavalier King Charles Spaniels. The purpose of this retrospective study was to compare times of closure for cranial base synchondroses in mesaticephalic, brachycephalic, and Cavalier King Charles Spaniel dogs. Cranial magnetic resonance imaging studies were retrieved for client‐owned dogs less than 18 months of age. Breed, age, skull conformation, and the open or closed state of cranial base synchondroses were independently recorded by two observers. For dogs with a unanimous observer agreement, regression analysis was used to test effects of age and gender on the open or closed status of synchondroses and differences between groups. A total of 174 dogs were included in MRI interpretations and 165 dogs were included in the regression analysis. Statistically significant differences in closure time of the spheno‐occipital synchondrosis were identified between brachycephalic and mesaticephalic dogs (P = 0.016), Cavalier King Charles Spaniels and mesaticephalic dogs (P < 0.0001), and Cavalier King Charles Spaniels and brachycephalic dogs (P = 0.014). Findings from the current study supported the theory that morphological changes leading to the skull phenotype of the Cavalier King Charles Spaniels could be due to an earlier closure of the spheno‐occipital synchondrosis. 相似文献
718.
719.
720.
Münker C Pfänder JA Weyer S Büchl A Kleine T Mezger K 《Science (New York, N.Y.)》2003,301(5629):84-87
It has been assumed that Nb and Ta are not fractionated during differentiation processes on terrestrial planets and that both elements are lithophile. High-precision measurements of Nb/Ta and Zr/Hf reveal that Nb is moderately siderophile at high pressures. Nb/Ta values in the bulk silicate Earth (14.0 +/- 0.3) and the Moon (17.0 +/- 0.8) are below the chondritic ratio of 19.9 +/- 0.6, in contrast to Mars and asteroids. The lunar Nb/Ta constrains the mass fraction of impactor material in the Moon to less than 65%. Moreover, the Moon-forming impact can be linked in time with the final core-mantle equilibration on Earth 4.533 billion years ago. 相似文献