Showing 2,501 - 2,520 results of 3,272 for search '"grains"', query time: 0.07s Refine Results
  1. 2501

    Confused Flour Beetle, Tribolium confusum Jacquelin du Val and Red Flour Beetle, Tribolium castaneum (Herbst) (Insecta: Coleoptera: Tenebrionidae) by Rebecca Baldwin, Thomas R. Fasulo

    Published 2005-02-01
    “… Red and confused flour beetles attack stored grain products such as flour, cereals, meal, crackers, beans, spices, pasta, cake mix, dried pet food, dried flowers, chocolate, nuts, seeds, and even dried museum specimens (Via 1999, Weston and Rattlingourd 2000). …”
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  2. 2502

    Time-based and privacy protection revocable and traceable data sharing scheme in cloud computing by Jiawei ZHANG, Jianfeng MA, Zhuo MA, Teng LI

    Published 2021-10-01
    “…General ciphertext-policy attribute-based encryption (CP-ABE) provides fine-grained access control for data sharing in cloud computing, but its plaintext formed access policy may cause leakage of private and sensitive data.And revoking a malicious user by accurately tracing the identity according to a leaked decryption key is a huge challenge.Moreover, most of existing revocable schemes incur long user revocation list and low efficiency.To solve these problems, a time-based and privacy preserving revocable and traceable data sharing scheme was proposed based on CP-ABE to support expressive monotonic and partial hidden access policy, large attribute universe by conceal the attribute values in access policy.Time-limited data access control using hierarchical identity-based encryption was achieved to set key valid period for users.Moreover, with the approaches of white-box tracing and binary tree, efficient user tracing and direct revocation with shorter revocation list was realized together with high efficiency via online/offline and verifiable outsourced decryption techniques.Furthermore, the scheme was secure under decisional q-BDHE assumption.Theoretical analysis and extensive experiments demonstrate its advantageous performance in computational and storage cost.…”
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  3. 2503

    Access control scheme for medical data based on PBAC and IBE by Yi-ting ZHANG, Yu-chuan FU, Ming YANG, Jun-zhou LUO

    Published 2015-12-01
    “…Due to the large amount of personal privacy information contained,the medical big data formed in the health care industry was faced with potential threats of both external attacks and internal data leakages.However,traditional access control technology didn’t take into account the important role of user access purpose in the access control schemes that emphasized data privacy,and existing symmetric and asymmetric encryption technologies both face problems such as the complexity of key and certificate management.To address these problems,a novel access control scheme based on PBAC model and IBE encryption technology was proposed,which could provide flexible access control of encrypted medical data.By introducing the concept of conditioned purpose,the PBAC model was extended to achieve full coverage of purpose trees.Furthermore,the scheme used patient ID,conditioned bit and intended purpose as the IBE public key,with which patients’ data were encrypted.Only users who pass the authentication and whose access purposes conform to the intended purposes can obtain the corresponding private keys and the encrypted data,thereby achieving access to patients’ information.Experimental results prove that the scheme can achieve the goals of fine-grained access control and privacy protection with high performance.…”
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  4. 2504

    Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements by Talijan N., Ćosović V., Žák T., Grujić A., Stajić-Trošić J.

    Published 2009-01-01
    “…In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass%), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties.…”
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  5. 2505

    Influence of Strain and Stress Triaxiality on the Fracture Behavior of GB 35CrMo Steel during Hot Tensile Testing by Zheng Li, Yajun Zhou, Sanxing Wang

    Published 2018-01-01
    “…In addition, the recrystallization degree was decreased with increased stress triaxiality, and the grain size growth was slowed. The failure of 35CrMo steel occurred via ductile fracture, and low stress triaxiality, and high temperature conditions induced large and deep dimples on the fracture surface.…”
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  6. 2506

    Spring-Interseeded Winter Rye Seeding Rates Influence Weed Control and Organic Soybean Yield by Kelly A. Nelson, Reid J. Smeda, Randall L. Smoot

    Published 2011-01-01
    “…Based on regression analysis, wide-row (76-cm) soybean grain yield and gross margins were greatest when winter rye was interseeded at 114 and 106 kg ha−1, respectively. …”
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  7. 2507

    Blockchain-based and verifiable multidimensional data aggregation and sharing scheme for smart grid by Jianwei CHEN, Shuyu WANG, Meiping ZHANG, Zhenping ZHANG

    Published 2024-01-01
    “…Aiming at the problem that how to support lightweight multi-dimensional data aggregation, achieve double-end integrity verification of multi-dimensional data in the overall process of the system, and deal with the centralization of cloud servers, a blockchain-based and verifiable multidimensional data aggregation and sharing scheme for smart grid was proposed.Firstly, in order to meet the demand for fine-grained analysis of power data in smart grid, privacy-preserving multidimensional data aggregation was achieved by using masked values and Horner’s rule.On this basis, for the data integrity verification problem of the existing data aggregation scheme in the sharing of cloud storage data with the third party, a new signature algorithm was designed by borrowing the RSA-based multiplicative homomorphic commitment scheme and homomorphic hash function homomorphism, which enabled the cloud server to verify the integrity of aggregated data and be used for integrity verification in the data sharing phase, i.e., it achieved double-end verifiability of cloud storage data and was resistant to internal attacks.Meanwhile, an aggregated data sharing architecture based on federated chain multichain was proposed to effectively avoid centralisation problems such as single-machine processing bottleneck and vulnerability to attacks.The theoretical analysis proves the security of the scheme.Performance experiments show that the proposed scheme has lower computation and communication costs compared with existing schemes.…”
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  8. 2508

    Evaluation of Water Resources Carrying Capacity in Heilongjiang Province Based on PSO-SVM Model by WANG Tao, LI Zhijun

    Published 2023-01-01
    “…The problem of water resources has triggered a global crisis.With the rapid development of the social economy,the rapid increase in population,and the acceleration of modernization and urbanization,the demand for water in various industries is gradually increasing,and the problems of water shortage and water waste are becoming serious.Heilongjiang Province is an important industrial base and a major grain-producing province in China.With the rapid development of the economy and society,the contradiction between the supply and demand of water resources has become increasingly prominent.Although many measures have been taken to protect water resources in Heilongjiang Province,the development and utilization situation of water resources is still severe.In view of the above problems,this paper established a support vector machine (SVM) model optimized by particle swarm optimization (PSO) algorithm to evaluate the water resources carrying capacity in Heilongjiang Province.Based on the actual situation of Heilongjiang Province,an evaluation index system and index grading standards were established to evaluate the water resources carrying capacity of 13 cities in Heilongjiang Province in 2020.It thus provides a reference for the development and utilization of water resources in the future and plays a certain role in the application and promotion of SVM in water resources.The PSO-SVM model complements the theory of multi-factor comprehensive evaluation.…”
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  9. 2509

    Role of Pigeonpea Cultivation on Soil Fertility and Farming System Sustainability in Ghana by S. Adjei-Nsiah

    Published 2012-01-01
    “…Mineral fertilizer is sparingly being used by smallholder farmers because of prohibitive cost. Grain legumes such as pigeonpea can play a complementary or alternative role as a source of organic fertilizer due to its ability to enhance soil fertility. …”
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  10. 2510

    Research on the Obstruction Process of Rigid Netting Barriers toward Granular Flow by Yunyun Fan, Fengyuan Wu

    Published 2019-01-01
    “…On this basis, the discrete element method was applied to simulate the obstruction process affecting granular flow under different RNB setting conditions, and the calculation results clearly present the phenomena that occur during the obstruction process of RNBs toward granular flow, such as “run-up,” “overflow,” “passing-through,” and “grain-size segregation.” By analyzing the effects of these phenomena on the obstruction efficiency and the time history of the forces acting on the RNB, the rational setting of an RNB was further discussed. …”
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  11. 2511

    Evaluation of Malt Barley (Hordeum distichon L.) Varieties for Yield and Agronomic Traits in South Gondar, Ethiopia by Tiringo Yilak Alemayehu, A. Momina

    Published 2022-01-01
    “…The correlation coefficient analysis showed a significant and very strong positive association of grain yield with number of effective tillers (r=0.953∗∗), spike length (r=0.973∗∗), and strong positive association with thousand seed weight (r=0.739∗∗) with a medium positive association with seed per spike (0.554∗∗). …”
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  12. 2512

    Research on efficient and secure cross-domain data sharing of IoV under blockchain architecture by Xuejiao LIU, Tiancong CAO, Yingjie XIA

    Published 2023-03-01
    “…To solve the problems of data disclosure, uncontrolled data access, and inefficiency of cross-domain data sharing in the Internet of vehicles (IoV), an efficient and secure cross-domain data sharing scheme of IoV under blockchain architecture was proposed.A blockchain was maintained by trusted authorities of different trust domains.A modified ciphertext-policy attribute-based encryption scheme was adopted to encrypt data, and encrypted data was stored in interplanetary file system (IPFS) with relevant information recorded on the blockchain, constructing a fine-grained and secure cross-domain data sharing scheme based on blockchain.A verification algorithm for cross-domain access based on the garbled Bloom filter was designed, and a smart contract executed fast decryption tests based on access policies on the blockchain, improving the access efficiency of a mass of ciphertext.A cross-domain data access method based on outsourcing decryption was designed, and the trusted authorities transformed ciphertexts while performing outsourcing decryption with complex bilinear pairing calculations, reducing the time overhead of vehicle decryption.Experiment results show that the proposed scheme is superior to other schemes in the process of cross-domain ciphertext transformation and vehicle decryption, and the cross-domain data access efficiency is increased by 60% on average.…”
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  13. 2513

    Russian Black Sea Trade in Early 19<sup>th</sup> Century by E. P. Kudryavtseva

    Published 2023-07-01
    “…In the early 19th century, the grain trade in these regions had yet to gain momentum due to their limited development. …”
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  14. 2514

    Sur le problème de la méthode dans les cultural studies et ce que nous apprend leur différend fondateur by Thierry Labica

    Published 2025-01-01
    “…The narrative of CS’ inception and later growth from an allegedly foundational Marxist frame of reference from the early 1960s onward, then followed by an erosion and disappearance of the Marxist baggage, has been a common one for some time. Against the grain of such familiar assumptions, this chapter aims to signal the eclecticism already inherent in the very formative debates which heralded this whole field of critical practices. …”
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  15. 2515

    Effect of Friction Coupling on Discharge Velocity Profiles and Force Chain Distribution of Maize Particles in Silos by Yong Feng, Caihua Yu, Fan Pan

    Published 2020-01-01
    “…Through EDEM, the silo and maize grain models were established for unloading simulation, whose flow pattern was compared with the silo unloading test to verify the rationality of the simulation. …”
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  16. 2516

    High-temperature aluminum composite materials with special physical and mechanical properties produced by mechanical alloying by F. G. Lovshenco, I. A. Lozikov, A. I. Khabibulin

    Published 2020-10-01
    “…The microcrystalline structure of the base is characterized by a well-developed surface of grain and subgrain boundaries and is stabilized by nanosized inclusions of aluminum oxides and carbides formed during mechanical alloying. …”
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  17. 2517

    The Historical Sociology of Rural-Urban Development by James Scott: Against Simplifications by A. M. Nikulin

    Published 2024-12-01
    “…This topic is presented especially deeply and comprehensively in Scott's monographs of his late intellectual period: 'Seeing Like a State' (1998), 'The Art of Being Ungovernable' (2006), and 'Against the Grain' (2016). In these works, Scott analyzed—practically in retrospective order—several key rural-urban contradictions and paradoxes of social development from the era of high modernism of the 19th-20th centuries to the era of the emergence of the first city-states in the 6th millennium BC. …”
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  18. 2518

    Gliricidia (Gliricidia sepium) Green Manures as a Potential Source of N for Maize Production in the Tropics by Abdul R. Bah, Zaharah A. Rahman

    Published 2001-01-01
    “…Surface-applied Gliricidia leaves significantly increased N uptake by maize, and supplied >30% of the total N in the stover and >20% of that in the corn grain, even in the presence of hedgerows. Thus Gliricidia leaf mulch has immense potential to improve productivity in tropical soils.…”
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  19. 2519

    Continuous Monitoring Analysis of Rice Quality in Southern China Based on Random Forest by Lin Lu, Bo Zeng, Shihua Yang, Mingxue Chen, Yonghong Yu

    Published 2022-01-01
    “…General quality indexes of rice in southern China from 2011 to 2020 were determined, including processing quality (brown rice yield, milled rice recovery, head rice yield), appearance quality (grain length, length-width ratio, chalky rice percentage, chalkiness degree, transparency), and cooking quality (alkali spreading value, gel consistency, amylose). …”
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  20. 2520

    Weathering Influence on Properties of Siltstones from Istria, Croatia by Martina Vivoda Prodan, Željko Arbanas

    Published 2016-01-01
    “…Laboratory testing of siltstone samples of different weathering grades was conducted to determine the specific gravity, grain size distribution, Atterberg limits, and uniaxial compressive strength. …”
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