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Measurement of shear movements in the overburden strata ahead of longwall mining

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International j.urnal of Mining Science and Technology 2016年第1期26卷 97-102页

作者： Mills K.W. GarrattO. Blacka B.G. daigle L.C. Rippon A.C. Walker R.j. Strata Control Technology Wollongong NSW 2500 Australia

An underground coal mine located in New South Wales has a target coal seam located 160-180 m deep directly below a 16-20 m thick conglomerate unit that has been associated with significant periodic weighting events on the Iongwall face. As part of the investigations to better understand the causes of periodic weighting at the mine. inclinometers capable of measuring horizontal shear movements through the full section of the overburden strata were installed ahead of mining at two locations approximately 1 km apart above the centre of two iongwall panels. These inclinometers were monitored as the longwall approached each site. This paper presents the details of the installation, the results of the inclinometer monitoring at both sites, and the insights that these measurements provide for overburden behaviour about longwall panels. Horizontal shear movements were observed to develop on shear horizons that correlate closely across the two sites suggesting a mechanism that is consistent across a large area of the mine. Shear movements were observed to develop on a single horizon near the top of the conglomerate strata that was mobilised almost immediately after initial formation of the longwall goal at a distance of 425 m ahead of the longwall face.

关键词： Horizontal shearLongwallOverburdenInclinometer monitoring

Formulation and application strategies for the biocontrol of weeds in crops

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Formulation and application strategies for the biocontrol of...

一些两性离子化合物在免烫整理中作催化剂的特殊效果

International Conference:Technology Transfer in Biological Control:From Research to Practice

作者： W.j.CONNICK D.j.daigle C.D.BOYETTE P.C.QUIMBY USDA ARSSouth Regional Research Center USDA ARSSWSL USDA ARSRWLCulbertson HallMontana State University

Formulation and application technology must address shortcomings in the efficacy and shelf life of *** emulsion and vegetable oil emulsion carriers were developed that reduced fungal weed pathogens’ (mycoherbicide ag...

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国外纺织技术 1984年第1期 19-21页

作者： Donald j.daigle 钱蕾

引言纤维素纺织品经过某些化学试剂处理,免烫性能和防皱性能得到提高。用于这种整理的交链剂需要催化剂的帮助才能与纤维素起反应,从而改善整理品的性能。由于强度损失和甲醛的释放,在整理操作中所用催化剂的范围大受限制。理想的催化... 详细信息

引言纤维素纺织品经过某些化学试剂处理,免烫性能和防皱性能得到提高。用于这种整理的交链剂需要催化剂的帮助才能与纤维素起反应,从而改善整理品的性能。由于强度损失和甲醛的释放,在整理操作中所用催化剂的范围大受限制。理想的催化剂应是这样的,它的酸性足以引起交链反应,但在整理过程中不致于严重损伤织物。在整理后,它也不会破坏交链

关键词：催化剂免烫整理两性离子化合物氨基甲磺酸耐久压烫两性化合物催化剂浓度布朗斯特酸织物交链反应撕破强度

Producing Pesta,a delivery system for biocontrol agents,by twin-screw extrusion

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Producing Pesta,a delivery system for biocontrol agents,by t...

International Conference:Technology Transfer in Biological Control:From Research to Practice

作者： D.j.daigle W.j.CONNICK M.LOVISA K.WILLIAMS C.D.BOYETTE M.WATSON USDA ARSSRRCP.O.Box 19687New OrleansLA 70179USA

"Pesta" granules in which fungal propagules are encapsulated in a wheat gluten matrix were prepared in pound quantities by twin-screw extrusion. The *** these granules were compared to the *** laboratory *** the dough formulation of wheat flour,clay filler,fungus,and water,low water concentration reduced the viability of Colletotrichum

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梯田—草皮水道系统水土保持效益评价

水土保持科技情报 2000年第1期18卷 6-8页

作者： T.L.Chow H.W.Recs j.L.daigle 舒乔生辽宁省水土保持研究所

加拿大新布伦斯威克西北部的圣约翰河流域上游 ,随着马铃薯的生产 ,水蚀日益严重 ;由于马铃薯地过量径流的产生 ,土壤流失量达 2 0 0 0～ 30 0 0t/ (km2 a)。通过实施梯田、等高耕作、变坡引水渠和草皮水道等措施 ,每年可减少径流 15 0... 详细信息

加拿大新布伦斯威克西北部的圣约翰河流域上游 ,随着马铃薯的生产 ,水蚀日益严重 ;由于马铃薯地过量径流的产生 ,土壤流失量达 2 0 0 0～ 30 0 0t/ (km2 a)。通过实施梯田、等高耕作、变坡引水渠和草皮水道等措施 ,每年可减少径流 15 0mm ,从而增加马铃薯可利用水分 ;同时 ,土壤流失量也降至 10 0t/ (km2 a) ,并且能改变流域局部水文特性 ,减少洪涝灾害的发生。

关键词：草皮水道梯田土壤侵蚀水土保持马铃薯

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肺功能测定在治疗哮喘患儿中的作用

世界核心医学期刊文摘（儿科学分册） 2006年第6期2卷 28-28页

作者： Nair S.j. daigle K.L. DeCuir P. C.M. Schramm 李丹 Pediatric Pulmonary Division Connecticut Children's Medical Center 282 Washington Street Hartford CT 06106 United States Dr.

Obj.ctive: To assess how often in a single encounter that pulmonary function tests (PFTs) influenced management decisions in children with asthma, beyond what was obtained from history and physical examination alone. Study design: Children with asthma (n = 367, age 4 to 18 years) performed spirometry before clinical evaluation. Physicians and nurse practitioners in the outpatient pulmonary office evaluated the children and made initial treatment recommendations before reviewing the spirometry results. Any changes based on the test results were documented. Results: Spirometry was abnormal in 45%of the visits, related to underlying asthma severity but not to clinical findings. PFT results changed management decisions in 15%of visits. This frequency was not affected by the patient’s age, disease severity, symptom control, or exam findings. When spirometry did not change treatment decisions, the provider was more likely to maintain therapy (58%) than to increase (17%) or decrease (24%) therapy. In contrast, when spirometry did change treatment decisions, the provider was more likely to increase therapy (75%) than to maintain (20%) or decrease (5%) therapy. Conclusion: Without PFTs, providers often overestimated the degree of asthma control. This incorrect assessment could have resulted in suboptimal therapy.

关键词：肺功能测定治疗方法哮喘患儿疾病严重程度测定结果门诊患者儿童哮喘治疗措施医护人员呼吸科