grain

摘要： In this study,we examine the cross-view gait recognition problem.Many existing methods establish global feature representation based on the whole human body shape.However,they ignore some important details of different parts of the human body.In the latest literature,positioning partial regions to learn fine-grained features has been verified to be effective in human identification.But they only consider coarse fine-grained fea-tures and ignore the relationship between neighboring regions.Taken the above insights together,we propose a novel model called GaitGP,which learns both important details through fine-grained features and the relationship between neighboring regions through global features.Our GaitGP model mainly consists of the following two aspects.First,we propose a Channel-Attention Feature Extractor(CAFE)to extract the global features,which aggregates the channel-level attention to enhance the spatial information in a novel convolutional component.Second,we present the Global and Partial Feature Combiner(GPFC)to learn different fine-grained features,and combine them with the global fea-tures extracted by the CAFE to obtain the relevant information between neighboring regions.Experimental results on the CASIA gait recognition dataset B(CASIA-B),The OU-ISIR gait database,multi-view large population dataset,and The OU-ISIR gait database gait datasets show that our method is superior to the state-of-the-art cross-view gait recognition methods.

摘要： Since the 24th February 2022,Russia has been conducting extensive air and missile strikes against the Ukraine military they have also been conducting concurrent ground offensives beyond Crimea and the Donbas breakaway entities.Recent reports highlighted that Russia has continually advanced in different maneuver axes and at present,no one can predict when and how the Ukraine conflict will end.For over three months,the conflict has greatly influenced the global economy and sounded the alarm bells for global food safety,especially to those countries which greatly depend on food and chemical fertilizer import from Russia and Ukraine,as well as those countries sensitive to food price variation shock.

摘要： A convenient,cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice,maize and millet.Twelve samples can be processed simultaneously in the method.During the extraction process,10%acetonitrile-water solutions containing 110μL of n-hexadecane were used to extract organochlorine pesticides.Subsequently,1.0 g sodium chloride was placed in the extract,and then centrifuged and cooled.The n-hexadecane drops containing the analytes were solidifi ed and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process.Limits of detection for organochlorine pesticides were 0.97–1.01μg/kg and the RSDs were in the range of 2.6%–8.5%.The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%.Compared with the published extraction methods,the developed method was used to analyze organochlorine pesticides in grains,being more environmentally friendly,which is suitable for the daily determination of organochlorine pesticides.

摘要： A wheat variety BARI Gom 26 was cultivated with an objective of evaluating the effects of macro/secondary nutrients as S and Mg, and micro nutrients as B and Zn on yield, yield contributing traits and nutrient uptake status by the crop. The field experiment was con-ducted in the “North Eastern Barind Tract Soils” at Kushadaha, Nawabganj, Dinajpur, Bangladesh from November, 2014 to March, 2015. The surface soil was clay in texture, having pH 5.61, organic matter 1.58%, total N 0.10%, available P 7.03 ppm, exchangeable K 0.11 meq/100g, available S 2.57 ppm, exchangeable Mg 0.55 meq/100g, available Zn 1.30 ppm, available B 0.08 ppm. The experiment was designed with five treatments laid out in a randomized complete block design (RCBD) with three replications. The treatments were T1: NPK (control), T2: NPK + S, T3: NPK + S + Mg, T4: NPK + S + Mg + Zn and T5: NPK + S + Mg + Zn + B. All plots of wheat received 100 kg N/ha, 30 kg P/ha and 70 kg K/ha as basal dose. The secondary and micro nutrients doses were 15 kg S/ha, 6 kg Mg/ha, 2.5 kg Zn/ha and 1.5 kg B/ha. Results revealed that the plant height, tillers/hill, 1000-grain weight, yield of grain and straw, uptake of some specific nutrients in grain and straw were signifi-cantly influenced by all the treatments, though these treatments did not show any identical effect on spike length, content of P and Mg in wheat. Significantly highest amount of 1000-grain weight, yield of grain and straw weight of wheat were obtained in applying T2 treatment that employed the addition of S with recommended dose of NPK. Significant positive effects were also observed for the rest parameters in receiving the treatments composed of secondary and micronutrients (T3, T4, and T5). The highest concentration of nutrient uptake N, P, K and S in grain and straw of wheat were also obtained due to the application of T2 treatment. In the case of Mg, the maximum uptake was recorded in T4 where Mg was added as a component of this treatment. In contrast, the highest content of Zn and B were extracted in receiving the treatment T5 both for grain and straw. However, results suggested that T2 treatment comprising recommended dose of NPK with S might be economic and suitable as for better production of 1000-grain weight, yield of grain and straw, uptake of N, P, K and S in grain and straw of wheat cultivated in the North Eastern Barind Tract Soils of Bangladesh under winter condition. The treatment T5 would also be recommended in the context of addition of micronutrients.

摘要： If you are a drop of water,do you moisten [使…湿润] an inch of land?If you are a ray of sunlight,do you light up a bit of darkness?If you are a grain [粮食;谷物],have you nurtured a useful life?If you are a screw,will you stick to your post forever?No matter what position you are in,No matter what kind of work you are doing.

摘要： Grain production in China remains stable The COVID-19 outbreak,unfavorable weather during the planting season and the government’s campaign for less food wastage have raised concerns that China may be facing an imminent grain shortage.However,the Ministry of Agriculture and Rural Affairs(MARA)has provided assurances that the grain supply is secure.The total output of summer grain and the early rice output has risen by 1.3%y/y in 2020,which is the fastest in the past five years,to 170 million tons(mt).

摘要： The implementation of the Grain for Green Program(GGP)has changed the development track of the agricultural eco-economic system in China.In response to the results of a lag study that investigated the coupling between the GGP and the agricultural eco-economic system in a loess hilly region,we used a structural equation model to analyze the survey data from 494 households in Ansai,a district of Yan’an City in Shaanxi Province of China in 2015.The model clarified the direction and intensity of the coupling between the GGP and the agricultural eco-economic system.The coupling benefits were derived through linkages between the program and various chains in the agricultural eco-economic system.The GGP,the agroecosystem of Ansai and their potential coupling effects were in a state of general coordination.The agroecosystem directly affected the coupling effect,with the standardized path coefficient of 0.87,indicating that the agroecosystem in Ansai at this stage provided basic material support for the coupling between the GGP and the agricultural eco-economic system.The direct path coefficient of agroeconomic system impacted on the coupling effect was-0.76,indicating that partial contradictions occurred between the agroeconomic system and the coupling effect.Therefore,although the current agroecosystem in Ansai should be provided sufficient agroecological resources for the benign coupling between the program and the agricultural eco-economic system,agricultural development failed to effectively transform agroecological resources into agricultural economic advantages in this region,which resulted in a relative lag in the development of the agricultural economic system.Thus,the coupling between the GGP and the agricultural eco-economic system was poor.To improve the coupling and the sustainable development of the agricultural eco-economic system in cropland retirement areas,the industrial structure needs to be diversified,the agricultural resources(including agroecological resources,agricultural economic resources and agricultural social resources)need to be rationally allocated,and the chain structure of the agricultural eco-economic system needs to be continuously improved.

摘要： Sixty-four Holstein steers (247 ± 4 kg) were used in a 70-d experiment to evaluate the effects of partial replacement of steam flake corn (SFC) with extruded corn meal (EC) on growth performance and dietary net energy. Treatments consisted of a steam flaked corn-based finishing diet containing 0%, 10%, 20%, or 30% EC, where EC replaced 0%, 15%, 30%, or 45% of SFC (DM basis). Replacement of SFC with increasing levels of EC did not affect (P > 0.10) ADG, DMI, and gain efficiency. When EC replaced 15% to 30% of SFC, observed dietary NE was 99% of expected. Whereas, when EC replaced 45% of SFC, observed dietary NE was 94% of expected. Four Holstein steers (210 ± 7 kg) with cannulas in the rumen and proximal duodenum were used in a 4 × 4 Latin square experiment to evaluate treatment effects on characteristics of digestion. Partial replacement of SFC with EC did not affect (P > 0.10) flow of undegraded feed N and microbial N and to the small intestine, and ruminal microbial N efficiency(g microbial N/kg OM fermented). Likewise, there were no treatment effects (P > 0.10) on ruminal digestion of OM, NDF, starch and feed N. As expected, total tract digestion of starch for all treatments exceeded 99%. However, partial replacement of SFC with EC decreased total tract digestion of DM and OM (linear effect, P = 0.02), and dietary DE (linear effect, P = 0.03). These effects were more pronounced where EC replaced 45% of SFC. Partial replacement of SFC with EC did not affect (P > 0.10) ruminal pH, total VFA concentration, molar proportions of acetate, propionate, and butyrate, and estimated methane production. It is concluded that partial replacement of SFC with EC does not have a beneficial effect on ruminal microbial efficiency and digestive function. The feeding value of extruded corn for feedlot cattle is comparable to that of steam flaked corn provided the inclusion rate does not exceed 20% of diet dry matter.

摘要： To explore the variations in symbiotic N2 fixation and water use efficiency in cowpea, this study evaluated 25 USDA cowpea genotypes subjected to drought under field conditions at two locations (Kpachi and Woribogu) in the Northern region of Ghana. The 15N and 13C natural abundance techniques were respectively used to assess N2 fixation and water use efficiency. The test genotypes elicited high symbiotic dependence in association with indigenous rhizobia, deriving between 55% and 98% of their N requirements from symbiosis. Consequently, the amounts of N-fixed by the genotypes showed remarkable variations, with values ranging from 37 kg·N-fixed·ha-1 to 337 kg·N-fixed·ha-1. Most genotypes elicited contrasting symbiotic performance between locations, a finding that highlights the effect of complex host/soil microbiome compatibility on the efficiency of the cowpea-rhizobia symbiosis. The test genotypes showed marked variations in water use efficiency, with most of the genotypes recording higher δ13C values when planted at Kpachi. Despite the high symbiotic dependence, the grain yield of the test cowpeas was low due to the imposed drought, and ranged from 56 kg/ha to 556 kg/ha at Kpachi, and 143 kg/ha to 748 kg/ha at Woribogu. The fact that some genotypes could grow and produce grain yields of 627 - 748 kg/ha under drought imposition is an important trait that could be tapped for further improvement of cowpea. These findings highlight the importance of the cowpea-rhizobia symbiosis and enhanced water relations in the crop’s wider adaptation to adverse edaphoclimatic conditions.

摘要： 本发明公开了一种Grain型流密码的判别方法，引入平衡二叉树的结构存储特征函数的项，通过平衡二叉树的搜索、插入、删除操作，能够极大的提高函数处理效率；以项的次数为依据对项进行分类，起到分治的效果，缩减了平衡二叉树的规模：一方面减小了计算每个平衡二叉树对应单变量多项式的计算量，另一方面又减少了计算非线性移位寄存器特征函数的搜索空间；算法引入分治的思想，在求取平衡二叉树对应单变量多项式和计算非线性移位寄存器特征函数过程中都适合并行化运算，在并行化计算环境中，该判别方法可以处理更大规模的特征函数；判别方法具有普适性和可延展性。

摘要： 本发明公开了一种Grain型流密码的判别方法，引入平衡二叉树的结构存储特征函数的项，通过平衡二叉树的搜索、插入、删除操作，能够极大的提高函数处理效率；以项的次数为依据对项进行分类，起到分治的效果，缩减了平衡二叉树的规模：一方面减小了计算每个平衡二叉树对应单变量多项式的计算量，另一方面又减少了计算非线性移位寄存器特征函数的搜索空间；算法引入分治的思想，在求取平衡二叉树对应单变量多项式和计算非线性移位寄存器特征函数过程中都适合并行化运算，在并行化计算环境中，该判别方法可以处理更大规模的特征函数；判别方法具有普适性和可延展性。

摘要： 本申请涉及一种适用于发酵山羊乳的kefir grains的制备方法，同时提供了一种专用于山羊乳发酵的重塑kefir grains定殖的菌群。重塑方法：活化后的细菌和真菌菌群接种于山羊乳中，恒温发酵至体系pH值达到4.2‑4.6，即获得初代山羊奶kefir发酵剂；将初代发酵剂继续接种于山羊乳中，恒温发酵至pH值达到5.6‑5.8后添加适量凝乳酶和氯化钙后离心取下层沉淀，即获得预成型kefir grains颗粒；预成型kefir grains颗粒于恒温环境下继续孵化1h后再次离心，取沉淀切块并于山羊乳中继续传代1个月后即得到重塑kefir grains。本方法首次实现了kefirgrains的靶向重塑，同时制备得到的kefir grains更适合用于山羊奶kefir的发酵，山羊乳凝乳速度提高，凝乳坚实，奶香浓郁浑厚、无任何异味等，山羊kefir具有更优的物理性状和感官品质。