YC97B型储粮害虫数量光电传感探头技术性能快速检测

以赤拟谷盗、杂拟谷盗、玉米象、谷蠹、长头谷盗、锯谷盗、长角扁谷盗和锈赤扁谷盗8种储粮害虫为试虫，采用储粮害虫延时释放装置测试了YC97B型储粮害虫数量光电传感探头的性能。设计为8种储粮害虫单一虫种不同密度、3虫种复合种群组合及4虫种复合种群组合的各项处理进行测试。测试结果表明，除低密度处理中长角扁谷盗与谷蠹和赤拟谷盗检测误差率差异达到5％的显著性外，其余各项处理检测误差率差异间均达不到5％水平显著性，说明YC97型害虫数量光电传感探头对不同虫种检测效果基本稳定，基本符合B型光电传感探头设计要求。     

保粮磷防治扁谷盗科害虫实仓试验

扁谷盗科害虫属昆虫纲、鞘翅目。长角扁谷盗、锈赤扁谷盗和土耳其扁谷盗三种扁谷盗属的虫种分布于全国各地。成虫具有群集性和趋光性、且善飞行，耐干燥、耐低温、对生活环境适应性强等特征；对磷化氢（PH3）已具有较高的抗性，较难防治。重庆地区属高温高湿的气候条件，使扁谷盗科害虫繁殖旺盛，活动更加猖獗。现阶段储粮害虫中，如何有效防治扁谷盗科害虫，已成为当前储粮害虫防治技术的难题。重庆市粮食储运公司自2003年开始，发现扁谷盗科害虫活动频繁，密度较大且很难彻底防治，严重影响储粮稳定性。由于该类虫种具有较强的抗药性，导致使用PH3加大剂量或重复熏蒸仍难彻底防治。为积极探索防治扁谷盗科害虫的有效方法，遵循“以防为主，综合防治”的原则，采用“熏蒸剂为辅、防护剂为主”的防治策略，利用扁谷盗科害虫的生活习性和特点，在粮食经过环流熏蒸达到基本无虫后，使用防护剂保粮磷对高大平房仓粮面进行拌和试验，取得了明显的防治效果。     

利用LED光催化捕蚊器诱捕主要扁谷盗属储粮害虫的试验

我库多年以来都是使用化学药剂防治储粮害虫,导致主要扁谷盗属的长角扁谷盗、锈赤扁谷盗等储粮害虫抗药性越来越强,目前按正常的用药剂量已无法彻底消灭它们,该害虫在我库变成易发、难防、难治的储粮害虫。今年我库大力开展绿色储粮的试验活动,采用LED光催化捕蚊器,针对主要扁谷盗属储粮害虫的趋光性和擅飞性等生活习性进行诱杀,取得了良好的效果。     

2005年《粮食储藏》总目录

文章题目作者期号页码储粮有害生物及防治技术MATLAB在储粮害虫图像处理中的应用陈栋张颖悦周龙1 3几种植物性物质防治储粮害虫的研究李世广林华峰刘志红等1 8害虫种群检测(监测)技术研究进展施国伟黄志宏原锴1 11八种储粮害虫趋光性的测定姚渭薛美洲杜燕萍2 3茵陈嵩的三种不同溶剂提取物对赤拟谷盗作用方式和作用效果的研究张丽丽杨长举2 6无色书虱不同虫态对PH3抗药性的研究白青云朱克瑞曹阳2 9昆虫生态环境控制的研究李文辉陈嘉东张新府等3 3应用紫外高压诱杀灯防治储粮害虫朱邦雄刘国述刘荣等3 7磷化氢防治高抗性锈赤扁谷盗试验卢全…     

储粮害虫的防治与识别

讨论了台湾省的重要储粮害虫及其防治方法.主要储粮害虫包括了8种昆虫和1种螨类,所有这些害虫都能为害谷物.为害最严重的是在粮粒内部发育的蛀蚀性害虫:象虫科的米象和玉米象,长蠹科的谷蠹以及麦蛾科的麦蛾.为害面粉和在粮粒外发育的害虫是:步甲科的赤拟谷盗,扁甲科的锈赤扁谷盗,谷盗科的大谷盗以及皮蠹科的谷斑皮蠹.可应用化学,物理,生物防治,环境控制以及培育抗虫品种等方法来防治这些害     

黑龙江省储粮虫螨调查

为摸清黑龙江省储粮虫螨种类的分布特性、发生规律及区系间变化情况,选取该省6个地级市进行虫螨发生种类及分布调查。调查结果显示,黑龙江省储粮昆虫种类较为丰富,共5目28科66种,其中鞘翅目种类最多达50种,占总调查种类数的76%,主要发生种类有米象Sitophilus oryzae (Linnaeus)、土耳其扁谷盗Cryptolestes turcicus (Grouvelle)、锈赤扁谷盗Cryptolestes ferrugineus (Stephens)、赤拟谷盗Tribolium castaneum (Herbst)和印度谷螟Plodia interpunctella (Hübner);共调查到螨类6种,已鉴定出4种,包括马六甲肉食螨Cheyletus malaccensis、普通肉食螨Cheyletus eruditus、鳞翅触足螨Cheletomorpha lepidopterorum、酪阳厉螨Androlaelaps casalis。在分布上,粮库较加工厂发生种类丰富,但加工厂的发生频率较高。在不同寄主中,玉米中的昆虫发生种类最多。本调查基本明确了黑龙江省储粮虫螨分布特征及不同仓储场所主要种类发生情况,为指导黑龙江省储粮害虫防治、预测和预报工作提供了数据支撑。     

热力对常见储粮害虫杀灭效果研究与分析

对四种常见储粮害虫在不同温度下随时间变化的死亡率进行研究分析,结果表明,45℃条件下对所有供试虫的杀灭效果都较差;在50℃条件下,在22 min时,供试虫校正死亡率达到100%;55℃时,8 min内供试虫全部死亡;60℃时,在4 min内供试虫校正死亡率100%;65℃时,2 min内供试虫全部死亡。以不同虫种进行分析,锈赤扁谷盗对高温最为敏感,谷蠹其次,锯谷盗和玉米象较耐高温。温度在55℃以上时,所有供试虫可在短时(8 min)内杀灭。     

储粮害虫数量传感机理与技术体系

本文报道了储粮害虫数量传感探头结构、机理、各项验证试验及国内外应用进展。验证试验结果表明，以粮虫陷阱检测器为辅助工具设计的传感探头结构合理，24小时记录害虫数量基本上可反映粮堆虫口密度水平，可作为储粮害虫数量传感探头计量单位；单台采样速度可控制在2秒左右，多台同时采样误差较低；以赤拟谷盗、玉米象、谷蠹及锈赤扁谷盗为试虫测定了储粮害虫数量传感探头技术性能。     

海南省储粮害虫动态监测结果分析及防治方法调查

为掌握海南省储粮害虫的分布特性、发生规律及防治情况,选取海南省28家储粮单位作为储粮害虫动态监测点进行跟踪监测。监测结果显示,海南省粮库中的储粮害虫主要包括7种鞘翅目昆虫、2种鳞翅目昆虫及2种啮虫目昆虫。在分布上,海南省西部粮库的害虫发生种类较其他地区丰富。在三大原粮中,稻谷中发生的害虫种类最多。在害虫发生发展规律上,6月～9月是害虫高发期,谷蠹、嗜虫书虱和锈赤扁谷盗是高发害虫。在储粮害虫防治上,常规储藏的粮库一年平均熏蒸4次,熏蒸剂主要是磷化铝。本次跟踪监测初步明确了海南省储粮害虫的分布特征、发生规律及在不同原粮中的发生情况,为指导海南省的储粮害虫防治、预测和预报工作提供科学数据,为海南省的粮食安全提供保障。     

两种防护剂和磷化氢联用对锈赤扁谷盗和两种书虱的防治

测定了甲基嘧啶磷、防虫磷、磷化氢、甲基嘧啶磷和防虫磷分别与磷化氢联用对不同虫态的锈赤扁谷盗Cryptolestes ferrugineus、嗜卷书虱Liposcelis bostrychophila和嗜虫书虱Liposcelis entomophila的熏杀效果。对甲基嘧啶磷和防虫磷耐药性最强的是嗜虫书虱,其次是嗜卷书虱和锈赤扁谷盗。对磷化氢耐药性最强的是锈赤扁谷盗,其次是嗜虫书虱,嗜卷书虱最敏感。甲基嘧啶磷或防虫磷与磷化氢联用处理嗜虫书虱和嗜卷书虱的若虫和成虫,以及锈赤扁谷盗的幼虫时,有显著的增效作用。在磷化氢熏蒸之前应用甲基嘧啶磷或防虫磷处理平房仓中的稻谷,6个月后未发现虫害,然而仅用磷化氢熏蒸的仓,发现有锈赤扁谷盗和书虱发生和活动,说明在实仓中使用甲基嘧啶磷或防虫磷两种储粮防护剂在磷化氢熏蒸之前处理粮食,对磷化氢熏蒸防治书虱和锈赤扁谷盗具有增效作用。     

THE METHOD OF THE MEASUREMENT OF THE WORMWHEEL PROFILE ERROR WITH THE THREE-COORDINATE-MEASURE-MACHINE

In this paper we explain the method of the measurement of the wormwheel profile error with the three coordinate measuring machine. We first establish the wormwheel theoritical tooth profile equation according to the gear engage principle, then write the computing program and calculate the wormwheel theoritical profile, next analyse and calculate the error of the gage head interference. At last, we work out the measuring program and get the wormwheel profile measured with the three-coordinate measuring machine.     

THE ERRECT OF HIGH HARMONICS ON THE SELECTION OF THE SIZE OF TRANSFORMER CONDUCTOR

This paper analyses the additional stray losses of transformer winding caused by harmonics,and suggests that the influence of harmonics should be taken into consideration in the selection of the conductor' s size in rectifier transformer and converter transformer design.     

THE STRAIN OF THE BARS IN THE STRUCTURAL COLUMNS OF THE PRESTRESSED EARTHQUAKE-RESISTANT BRICK-WALLS

Through the comparative tests of prestressed and non-prestressed brick-walls un-der the repeated lateral loading,the effect of the prestress-force to the strain distribution in the non-prestressed bars of the structural columns has been investigated.This effect is beneficial:the pre-stress-force will reduce the value of strain in the bars of the lower part in the columns and uniformize the strain distribution along the whole height of the columns.Furthermore,instead of a strainreduction,the strain of prestressed be will increase along with the increasing of the lateral load.Thus,the coefficient of prestress-force-increase could be calculated in the tWo stages of the crack-resistance and ultimate bearing capacity.As a result,both the prestressed and non-prestressed barsare able to give the potential of their bearing capacity a full play,and improve the earthquake-resis-tant property.     

THE EFFECT OF THE STRESS OF LONGWALL AND STRUCTURE OF COAL ON THE BUMP OF COAL AND METHANE

The problems that the bump of coal and methame in the mine is contraled by the stress of longwall and that the coal and methane bump in the mine is affected by the physical properties of the coal are analysed and discussed through some specific bump cases. It is shown that the compressive stress, the content of the methane of the coal, and the bump of coal and methane are directly affected by the content of the ash and the volatile of the coal.     

粮堆局部处理机实仓熏蒸杀虫试验

采用粮堆局部处理机解决了高大平房仓大粮堆局部生虫的问题，对处理区内粮温，水分无大的影响，人工、耗电量、药剂用量大大降低。该机可用于熏蒸、整仓通风和新仓干燥。     

自生稻混入对稻米品质的影响

稻米的RVA粘度值和品尝评分值分别从稻米的物性指标和感官指标上标注了稻米的品质指标状态,粳稻中混入不同梯度的自生稻谷,稻米的RVA粘度值和品尝评分值的变化与自生稻混入的梯度呈现负相关性。     

挂面在储藏期间的品质变化

在实验室条件下进行了两种挂面的储藏实验.在储藏过程中分析了挂面的水分,脂肪酸值和烹煮特性的变化.实验结果表明,挂面的水分随空气中的湿度而变化,脂肪酸值随储藏时间而增加,增加到一定程度又开始下降.在挂面烹煮特性方面,挂面的吸水率在储藏期间开始呈增加的趋势,然后变化较平缓,最后开始下降.面汤中直链淀粉含量随储藏时间迅速减少.挂面的烹煮损失呈下降趋势.     

THE RESEARCH OF AERODYNAMIC PARAMETER ABOUT THE PIPE-CASING GUN OF THE EQUAL ACROSS-SECTION

The computation principle for the pipe-casing gun of the equal acress-section area is studied by applying the basic theory of compressible. The aerodynamic parameter of the pipecasing gun and the friction factor of rustless sted-pipes and copper-pipes of different diameters are measured. On the basis of this measurement, the outlet-velcity profile and the change of the rate and pressure on the axis are measured. The results show that the friction factor measured is reliable and the computation method is practical.     

晋南盆地小麦产量结构与产量水平关系的分析

本文利用农业资源动态监测体系,对晋南盆地小麦产量结构及其水平的关系进行了分析研究,找出了中、低产水平下成穗数、穗粒数、千粒重三者与产量的关系.三者的合理组成以及它们在形成产量时的相对贡献,对制定晋南盆地小麦栽培管理措施具有一定的参考作用.     

THE STUDY OF ANTI-SEISMIC BEHAVIOR OF THE TOP CORNER JOINTS OF REINFORCED CONCRETE FRAME WITH THE INCLUSION OF STEEL FIBRES

This paper first discusses the limited effect of steel fibre reinforcement on plain concrete and reinforced concrete. Then, making a comparison among the test results of three full-scale top corner joint assemblies of frame, in which only two of them are added with steel fibres in joint zone. The advantageous and disadvantageous influence in anti-seismic aspect is investigated after adding steel fibres in the joint zone. Finally, this paper gives an overall comment on the application future of using the steel fibres in every kinds of joint of anti-seismic reinforced concrete frame.