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环球科学 2024年第3期 9-9页

作者：菲尔·普莱赵剑琳(译) 不详

宇宙中充满了令人难以置信的巨大结构,它们所拥有的能量远远超乎想象。不过,尽管我们身处其中,却难以看到这些奇景。但有一个特例:在黑夜里仰望天空,你能看到一条划过天空、微微发光的白色条纹.

关键词：白色条纹令人银河

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构建实时Web应用

芝麻种子在液氮温度(-196℃)下的存活率

作者： (美)Jason Lengstorf (美)phil Leggetter

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种子 1989年第6期8卷 68-70页

作者： phil Lip C.Stanwood 曾宪文

将种子贮藏在液氮（LN2）中,是延长种子种质寿命的一种手段。因为这种方法可以减轻遗传漂变的危险,并更好地维持种子物质的生理状态。LN2贮藏系统除可减轻或完全避免变质外,还有使用简便、费用低廉等优点。据报道,液氮贮藏对种子没有任... 详细信息

将种子贮藏在液氮（LN2）中,是延长种子种质寿命的一种手段。因为这种方法可以减轻遗传漂变的危险,并更好地维持种子物质的生理状态。LN2贮藏系统除可减轻或完全避免变质外,还有使用简便、费用低廉等优点。据报道,液氮贮藏对种子没有任何伤害。也有一些报道说,种子贮藏在近绝对零度下对种子仍没有明显的伤害。但在用液氮贮藏种子之前,必须测定所供种类的种子对液氮伤害的敏感性。例如,芝麻（Sesamum indicum L.）种子,当种子含水量低（35g/kg）,且快速冷却（200℃/分）时。

关键词：芝麻种子液氮温度贮藏存活率

Millimeter Wave and Terahertz Communications: Feasibility and Challenges

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ZTE Communications 2012年第4期10卷 3-12页

作者： phil Pietraski David Britz Arnab Roy Ravi Pragada Gregg Charlton InterDigital Communications LLC. MelvilleNY 11747 USA AT&T Labs Shannon laboratories Florham ParkNJ 07932 USA InterDigital Communications LLC. King of PrussiaPA 19406 USA

In this paper, the challenges with and motivations for developing millimeter wave and terahertz communications are described. A high-bye candidate architecture is presented, and use cases highlighting the potential applicability of high-frequency links are discussed. Mobility challenges at these higher frequencies are also discussed. Difficulties that arise as a result of high carrier frequencies and higher path loss can be overcome by practical, higher-gain antennas that have the added benefit of reducing intercell interference. Simulation methodology and results are given. The results show that millimeter wave coverage is possible in large, outdoor spaces, and only a reasonable number of base stations are needed. Network throughput can exceed 25 Gbit/s, and cell-edge user throuqhput can reach aDoroximatelv 100 Mbit/s.

关键词： millimeter wave terahertz small cells propagation mesh backhaul

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一种代铬镀层的微观组织和耐磨机理

中国表面工程 2009年第3期22卷 13-15,20页

作者：惠文华 phil.Hanqiu Chen 光辉表面系统公司美国尤因新泽西08618

一种新的铬替换材料已经被研制成功。通过X射线衍射仪,透射电子显微镜和表面分析仪器研究了这种新镀层在不同温度下的结构。结果表明,新的镀层由非晶、微晶和金属间化合物组成。这样的组织对于提高其耐磨性非常有利,工业试验证明,与原... 详细信息

一种新的铬替换材料已经被研制成功。通过X射线衍射仪,透射电子显微镜和表面分析仪器研究了这种新镀层在不同温度下的结构。结果表明,新的镀层由非晶、微晶和金属间化合物组成。这样的组织对于提高其耐磨性非常有利,工业试验证明,与原镀铬层相比用于凹版印刷缸表面的代铬合金使用寿命延长了3倍。

关键词：电镀代铬镀层性能机理

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游戏关卡设计

丛书名：游戏开发技术系列丛书

2007年

作者：（美）phil Co 姚晓光孙泱译

本书介绍了关卡策划在整个游戏中的作用，包括怎样制作一个游戏、定义游戏、关卡的挑战性、关卡创意、设计关卡、模板和改进关卡等，还全面讲述了多种游戏类型的开发过程。

ISBN: (数字)7111198727

ISBN: (纸本)7111198727

关键词：游戏软件设计

来源：畅想之星图书光盘版（南... 评论

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黄河源探访记——自驾巴颜喀拉考察之旅

汽车自驾游 2011年第7期 116-125页

作者： phil

你可能还不知道，黄河的源头位于青海省境内，正源更集中在一片名为“三江源区”（黄河、长江、澜沧玉）的大区域。

关键词：河源三江源区青海省大区域黄河

Physico-Chemical and Petrographic Characterization of Carbonated Rocks of Mintom (South-Cameroon) and Their Potential Uses

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International Journal of Geosciences 2016年第5期7卷 775-783页

作者： Zo’o Zame philémon Mpakam Hernanie Grelle Samba Assomo philippe Department of Earth Sciences Faculty of Sciences University of Yaoundé I Yaoundé Cameroon The Higher Institute of the Sahel University of Maroua Maroua Cameroon

The characterization of carbonated rocks of Mintom allowed identifying three features (massive limestone, banded limestone and dolomite). Samples taken in these features were subjected to the physico-chemical analyses and to the mechanical tests. The results obtained show a convergence in the mineralogical composition in particular in the calcareous features (smectite, micas and calcite);the dolomite feature being mainly constituted by dolomite associated with the smectite. The chemical composition allows finding contents raised in CaO, in all the samples. However, in the dolomite and the banded limestone, the concentrations in MgO and in SiO2 are also important. The mechanical properties showed a good compression resistance for the massive limestone and the dolomite, the mechanical behavior of the banded limestone being low. The exploitation of these results allows recommending carbonated rocks of Mintom in the production of the clinker, agricultural amendments and in the constructions of the civil engineering.

关键词： Mintom Carbonated Rocks Characterization Physico-Chemical Petrographic

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月球看日食

环球科学 2024年第5期 21-21页

作者：菲尔·普莱巢栩嘉(译) 不详

去年四月,月球曾穿过地球和太阳之间,挡住了南半球部分地区观测者的视线,这就是日全食现象。从地球上看,月球就像一个黑色圆盘,它的影子掠过了南印度洋和太平洋。但从月球上看“日食”是怎样的?日本的私营月球探索公司iSpace执行了一项... 详细信息

去年四月,月球曾穿过地球和太阳之间,挡住了南半球部分地区观测者的视线,这就是日全食现象。从地球上看,月球就像一个黑色圆盘,它的影子掠过了南印度洋和太平洋。但从月球上看“日食”是怎样的?日本的私营月球探索公司iSpace执行了一项名为“HAKUTO-R”的月球探索任务,该团队发射的月球着陆器于2023年3月21日进入月球轨道。

关键词：南印度洋月球轨道月球探索观测者日食日全食南半球

Gelatin encapsulation of chloropicrin and 1,3-dichloropropene as fumigants for soilborne diseases in the greenhouse cultivation of cucumber and tomato

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Journal of Integrative Agriculture 2017年第8期16卷 1758-1766页

作者： YAN Dong-dong WANG Qiu-xia LI Yuan OUYANG Can-bin GUO Mei-xia Jim Xinpei Huang John Busacca Jong Neng Shieh Alisa Ye Yu phil Howard Don Williams CAO Ao-cheng Key Laboratory of Integrated Pest Management in Crops Ministry of Agriculture/Institute of Plant Protection Chinese Academy of Agricultural Sciences Dow Agro Sciences R&D

Combined use of chloropicrin （Pic） and 1,3-dicloropropene （1,3-D） is as effective as methyl bromide （MB） at controlling soilborne diseases in many trials and commercial uses. However, Pic and 1,3-D are both highly volatile and may pose strong exposure risks to humans and the environment. A gelatin capsule formulation containing Pic and 1,3-D has been developed to reduce exposure risks to workers and bystanders and improved application safety. We conducted two experiments in tomato and cucumber greenhouses located in Beijing and Qingdao, China, to study the efficacy of Pic plus 1,3-D gelatin capsules applied at different dosages and soil depths. Results indicated that both injection and gelatin capsules of Pic plus 1,3-D provided good control of soil nematodes and reduced disease index of Fusarium wilt and root-knot nematode. Plant yield of tomato and cucumber treated with gelatin capsules was similar to MB treatment. Based on our results, gelatin capsules applied at a soil depth of 15 cm provided better control of soilborne diseases and led to higher fruit yield compared to an application depth of 5 cm. In conclusion, a gelatin capsule of Pic plus 1,3-D is a promising and novel formulation, which not only shows good efficacy in controlling soilborne diseases, but also reduces potential exposure risks of fumigants.

关键词： soil fumigation chloropicrin 1,3-dichloropropene gelatin capsule formulation efficacy application depth