作者: ALT 時(shí)間: 2025-3-21 21:44 作者: adipose-tissue 時(shí)間: 2025-3-22 00:24 作者: Polydipsia 時(shí)間: 2025-3-22 06:47
Allelopathy: Principles and Basic Aspects for Agroecosystem Control,elease into the environment of secondary metabolites called allelochemicals. Allelopathic plant interactions has been known since the 4th century before Christ (BC), but only in recent years they have received an appropriated attention from international scientific community and farmers. Nowadays, i作者: FLUSH 時(shí)間: 2025-3-22 12:28
Conservation Biological Control of Insect Pests,curring, with increasing use of pesticides to reach the necessary yields. However, there is strong evidence that suggests pesticides cannot provide the agro-ecosystem growth and stability needed for the increasing demand. It is well established that pesticides are harmful to human, animal and enviro作者: JOG 時(shí)間: 2025-3-22 15:25 作者: 洞穴 時(shí)間: 2025-3-22 19:53 作者: 別名 時(shí)間: 2025-3-23 01:12 作者: Popcorn 時(shí)間: 2025-3-23 04:26
Long-Term Effects of Fertilization on Soil Organism Diversity, use of fertilizers for conventional and alternative farming systems in field experiments in order to improve our understanding of the temporal changes on soil organic carbon, soil total nitrogen, arbuscular mycorrhizal fungi diversity and soil macroarthropods during their long-term utilization. We 作者: rods366 時(shí)間: 2025-3-23 07:49
,Agroecological Protection of Mango Orchards in La Réunion,on agrochemicals. These expensive treatments have limited efficacy, and negative effects on the environment are associated with health risks and ecological imbalances. In addition, these agroecosystems are not ecologically sustainable. That is why in recent years, Agroecological Crop Protection has 作者: 慢跑鞋 時(shí)間: 2025-3-23 09:56 作者: 不法行為 時(shí)間: 2025-3-23 17:50 作者: Endearing 時(shí)間: 2025-3-23 20:03 作者: Dorsal-Kyphosis 時(shí)間: 2025-3-24 02:06 作者: 混合物 時(shí)間: 2025-3-24 03:35
https://doi.org/10.1007/978-3-319-90309-5Climate; Pesticides; Weeds; Agroecology; Conservation; Field Crops; Allelopathy; climate change作者: VERT 時(shí)間: 2025-3-24 07:23 作者: 異端邪說2 時(shí)間: 2025-3-24 14:26 作者: SYN 時(shí)間: 2025-3-24 15:39 作者: ADOPT 時(shí)間: 2025-3-24 20:13 作者: 民間傳說 時(shí)間: 2025-3-25 02:07 作者: construct 時(shí)間: 2025-3-25 06:05
Ryan J. Rayl,Morgan W. Shields,Sundar Tiwari,Steve D. Wrattenth. The most commonly used representation for the Earthhas been a set of thick layers, each characterized by a single value for the propa- gation speed of seismic waves. During the last several years, more complicated representa- tions in the form of thin layers with vertical velocity gradients, as 作者: 放棄 時(shí)間: 2025-3-25 10:06 作者: 小畫像 時(shí)間: 2025-3-25 12:04
Mohd Abas Shah,Sridhar Jandrajupalli,Vallepu Venkateshwarlu,Kamlesh Malik,Anuj Bhatnagar,Sanjeev Shacted by what we do or think, it is the task of earth scientists to keep studying them from all possible angles until ways and means are found to divert, forecast, and eventually control them. In ancient times people were awestruck by singular geophysical events, which were attributed to supernatural作者: 繁殖 時(shí)間: 2025-3-25 17:11
Rosa Francaviglia,Luigi Ledda,Roberta Farinaat we do or think, it is the task of earth scientists to keep studying them from all possible angles until ways and means are found to divert, forecast, and eventually control them. In ancient times people were awestruck by singular geophysical events, which were attributed to supernatural powers. I作者: 保存 時(shí)間: 2025-3-25 21:16
Tancredo Augusto Feitosa de Souza,Helena Freitasmode wave propagation (DE HooP ., 1999; DE HooP and BRANDSBERG-DAHL, 2000; STOLK and DE HooP, 2000). This inversion is based on the Born/Kirchhoff approximation, and employs the global, uniform asymptotic extension of the geometrical method of “tracing rays” to account for caustic phenomena. While t作者: 一起平行 時(shí)間: 2025-3-26 01:11
Jean-Philippe Deguine,Maxime Jacquot,Agathe Allibert,Frédéric Chiroleu,Rachel Graindorge,Philippe Lawas held at the Castle of Trest, Czech Republic, May 22-27, 1995. The workshop, which was attended by about 100 seismologists from more than 10 countries, was devoted mainly to the current state of theoretical and computational means of study of seismic wave propagation in complex structures. The sp作者: Harass 時(shí)間: 2025-3-26 04:45 作者: daredevil 時(shí)間: 2025-3-26 12:06
rst one depends fully on the type and orientation of the source and on the parameters of the medium at the source. We call this factor the directivity function. The second factor depends on the parameters of the medium surrounding the source and this factor is the well-known geometrical spreading. T作者: 規(guī)范就好 時(shí)間: 2025-3-26 14:11 作者: 新義 時(shí)間: 2025-3-26 19:44 作者: 預(yù)知 時(shí)間: 2025-3-26 23:33
Ryan J. Rayl,Morgan W. Shields,Sundar Tiwari,Steve D. Wrattenum through wh ich seismic waves propagate. Because of this, tlie Department of Seismic Exploration Methods of the Institute of Physics of the Earth of the Acad- emy of Sciences of the USSR has been carrying out both experimental and theoretical studies on the topic "Selection of Physical Representations of Ac978-1-4757-0485-3978-1-4757-0483-9作者: 門閂 時(shí)間: 2025-3-27 01:49 作者: Loathe 時(shí)間: 2025-3-27 06:24 作者: 鎮(zhèn)壓 時(shí)間: 2025-3-27 09:29
Rosa Francaviglia,Luigi Ledda,Roberta Farinae of the advent of modern computers and improvements in data acquisi- tion systems, which are now capable of digital and analog recording of ground motion over a frequency range of five orders of magnitude. These technologic developments have enabled seismologists to make measurements with far great作者: enormous 時(shí)間: 2025-3-27 16:46 作者: 鉆孔 時(shí)間: 2025-3-27 21:18
Jean-Philippe Deguine,Maxime Jacquot,Agathe Allibert,Frédéric Chiroleu,Rachel Graindorge,Philippe Lato the ray method. The most important topics are two-point ray tracing, grid calculations of travel times and amplitudes and seismic wave propagation in anisotropic media.978-3-7643-5648-4978-3-0348-9213-1Series ISSN 2504-3625 Series E-ISSN 2504-3633 作者: IRK 時(shí)間: 2025-3-28 00:47 作者: 舉止粗野的人 時(shí)間: 2025-3-28 03:02
served wave field (so-called true amplitude concept) and thus require the proposed separation. The separation also has an important impact on computer time savings in modeling seismic wave fields generated by point sources by the ray method. For a given position in a given model, it is sufficient to作者: magnate 時(shí)間: 2025-3-28 08:57
arthroughout the book, as do both recent references and seminal ones from the past..Since the background of the authors is in solid mechanics and mathematical physics, the presented BEM formulations are valid f978-3-319-83238-8978-3-319-45206-7Series ISSN 0925-0042 Series E-ISSN 2214-7764
