针对鲁南高铁临沂北站结构所采用的带斜撑箱形钢管叠合柱型钢混凝土框架节点,介绍了一种通过AUTOLISP编程语言编辑INP文件的形式,快速建立ABAQUS有限元分析初始模型;应用ABAQUS中的塑性损伤模型,引入恰当的材料本构及损伤因子,模拟节点在最不利荷载组合及其极限荷载作用下的工作状况.通过分析得到节点区混凝土、钢筋、钢骨应力及混凝土损伤的发展规律,根据节点的荷载-位移曲线得出节点极限承载力.结果 表明:该节点在设计荷载作用下承载力满足规范要求,且具有一定的安全储备.

鲁南高铁临沂北站站房为“桥-建”合一建筑,建筑造型独特,结构形式新颖.承轨层以下采用箱形钢管叠合柱-混凝土梁框架结构,候车层采用箱形钢管叠合柱-型钢混凝土梁框架结构,商业夹层采用箱形钢管混凝土柱-钢梁框架结构,屋盖为空间钢桁架结构.对空间整体结构进行了受力分析,对主入口大悬挑桁架进行了抗连续倒塌能力分析,对腹部大跨度拱桁架和主入口大悬挑桁架的铸钢支座进行了有限元分析,对主入口大悬挑桁架采用的大直径焊接球进行了足尺试验.通过设计分析,各项指标均满足相关规范的要求.

杭州下沙大剧院为复杂多塔连体结构,下部采用钢框架-钢支撑结构,屋面采用大跨双层空间桁架,采用单层空间网壳结构做落地墙面.本工程根据建筑功能分为两个结构单元,分别对应剧院和多功能厅.介绍了剧院结构设计中的重点,包括多遇地震下的结构响应、振型分解反应谱法和时程分析法的对比、重要节点的有限元分析、连体结构的屈曲分析、空间结构的大震弹塑性分析、超长结构楼板温度作用分析、楼板的大震下应力分析及舒适度分析、风荷载下的结构响应、通高柱计算长度分析和抗连续倒塌分析等,以验证设计的合理性和安全性.

采用杂交育种、定向选育、重离子辐射等选育手段,育成了四元家蚕新品种"太湖×玉州".据2014、2015年浙江省蚕品种实验室鉴定:四龄起蚕虫蛹率为96.52％,比对照种略低;万头产茧层量4.038 kg,比对照种高0.308 kg;解舒丝长952 m,比对照种长82 m;净度94.92分,比对照种高0.6分,达到浙江省蚕品种实验室鉴定各项指标的要求.据2016、2017年浙江省蚕新品种农村生产鉴定:张种产茧量51.87 kg,张种产值2088元,比对照种分别提高2.88 kg、127元;健蛹率95.69％,比对照种高0.36％.据缫丝试样调查,一茧丝长1051 m、解舒丝长771 m、干茧出丝率33.52％、净度94.63分,与对照种比,分别长87 m、长117 m、高2.06个百分点、高0.89个百分点,达到浙江省家蚕品种生产鉴定各项指标的要求.

Silkworm (Bombyx mori) is an economically beneficial insect. Its growth and development are regulated by endogenous hormones. In the present study, we found that feeding titanium dioxide nanoparticles (TiO2NP) caused a significant increase of body size. TiO2NP stimulated the transcription of several genes, including the insulin-related hormone bombyxin, PI3K/Akt/TOR (where PI3K is phosphatidylinositol 3-kinase and TOR is target of rapamycin), and the adenosine 5-monophosphateactivated protein kinase (AMPK)/target of rapamycin (TOR) pathways. Differentially expressed gene (DEG) analysis documented 26 developmental hormone signaling related genes that were differentially expressed following dietary TiO2NP treatment. qPCR analysis confirmed the upregulation of insulin/ecdysteroid signaling genes, such as bombyxin B-1, bombyxin B-4, bombyxin B-7, MAPK, P70S6K, PI3k, eIF4E, E75, ecdysteroid receptor (EcR), and insulin-related peptide binding protein precursor 2 (IBP2). We infer from the upregulated expression of bombyxins and the signaling network that they act in bombyxin-stimulated ecdysteroidogenesis.

“苏秀×春丰”是苏州大学育成的一对细纤度四眠家蚕品种,本文介绍了该品种在湖州实验室的饲养试验,了解该品种在湖州的适应性,提出适应该品种特性的繁育技术和注意事项,为该品种在湖州推广提供技术依据.

为了解桑螟对40％毒死蜱乳油的耐药性,我们对不同龄期桑螟幼虫对40％毒死蜱乳油的耐药性进行了调查,结果表明,40％毒死蜱乳油在湖州地区大面积推广应用6年后桑螟对其抗性增长了8.6倍;不同龄期桑螟幼虫对40％毒死蜱乳油的耐药性有较大差异,2龄期最为敏感(LC50为1.29 mg/L),随着龄期的增长耐药性提高,到5龄期时LC50增加到5.59 mg/L.但是,与敌敌畏、敌·马合剂相比,桑螟对40％毒死蜱乳油的耐药性仍处在敏感阶段.

采用三种不同剂量重离子碳对戊3胚胎的蚕卵进行照射处理,处理后调查蚕种一日孵化率、茧丝质、家蚕虫蛹统一生命率.本试验结果表明经过重离子碳辐射的蚕品种,对当代1d孵化率的影响表现为辐射处理区均好于对照区,不同辐射剂量之间不表现某种趋势;茧丝量均好于或接近对照区,并随着辐射剂量的提高选择效果更好;虫蛹统一生命率则随着剂量的提高而依次递减,低剂量10 Gy辐射处理区好于对照区;辐射敏感性因品种而不同,本试验中选择的日系品种D敏感性大于中系品种A.

This article mainly carried out the silkworm breeding residue test to understand the safety of Propargite aqueous emulsion on silkworm rearing.The results showed that the silkworm were not sensitive to Propargite.There was a significant effect on the silkworm life indicators in a short term under a high concentration,and the effect eliminated after 3 days.It means 40% Propargite aqueous emulsion could be used for the control of harmful mites in mulberry in summer and autumn with a good safety for silkworm.And the safety interval of 1000 times of 40% Propargite aqueous emulsion for silkworm breeding would be 5~7 days.

本文介绍家蚕平面丝的饲养与上蔟技术.饲养阶段按常规技术操作进行,但需特别注意蚕儿发育整齐度和健康度,以免迟熟蚕的粪尿和病死蚕污染平面丝;上蔟阶段从蔟具准备、蔟中环境和技术管理均有别于常规吐丝营茧的技术要求.

引进沙2×伦教109杂交桑品种，作为湖羊饲料进行开发，为方便种子的存储和随时播种的需要，进行了杂交桑籽不同冷藏时间对其发芽率的影响试验。

For the present situation of hard control of temperature and humidity in silkworm rearing, this article mainly design the sericulture control system with automatic constant water, heating and humidifying. This system was effective with advantages of economical and practical, safe and reliable, sensitive for temperature and humidity control, exempt from duty.

2013年秋,调查了桑螟对有机磷农药的耐药性,结果表明,湖州地区桑螟对有机磷农药已经产生了抗性,不同地区抗性存在差异,抗性最强地区为吴兴区湖东蚕桑园,其他依次为南浔区菱湖镇＞千金镇＞湖州市农科院＞和孚镇＞善琏镇＞练市镇.但湖州地区桑螟整体对有机磷农药抗性还处在较低水平.

Using reversed-phase high-performance liquid chromatography(RP-HPLC) equipped with fluorescence detec tor after derivatization with 9-Fluorenylmethyl chloroformate(FMOC-Cl), the changes of DNJ(1-deoxynojimycin) con tents in the larvae of the silkworm, Bombyx mori were determained with different races and sex. There was rich DNJ in silkworm larvae, and DNJ content varied significantly with different races, highly up to 2.04 times among the 25 tested races. Male silkworm larvae had higher DNJ content than female ones. The spring rearing silkworm larvae had higher DNJ content than autumn rearing silkworm larvae and summer rearing silkworm larvae. These results may provide scien tific basis for medicinal exploitation of silkworm larvae.

The new silkworm variety Hua·Dong×Chun·Chen was in the popularization stage. The experiment of the influ ence of Hua·Dong male cocoon(pupa, moth) with different refrigeration processing on quality and quantity of next gener ation were carried out to reduce the loss of silkworm egg production.

<正>华·东×春·晨是湖州市农业科学研究院蚕桑研究所采用人工添食氟化物,定向选择耐氟性和杂交育种等技术,育成的一对耐氟性较强的春用多丝量四元杂交种。该品种2006~2007年参加浙江省家蚕新品种实验室共同鉴定,2008~2009年参加浙江省农村生产试验鉴定,产茧量及丝质成绩普遍优于当地对照品种菁松×皓月和秋丰×白玉,2010年2月通过浙江省农作物品种审定委员会审定并开始在浙江省淳安县、湖州市南浔区、安吉县等地试养推广,现就该品种的原种繁育技术浅述体会如下。1繁育概要

The bioreactor of the silkworm, Bombyx mori showed high development and utilization value in producing ac tive ingredients, expressing foreign genes, and improving properties of silkworm silk etc. The research advancement of silkworm larvae bioreactor, Bombyx mori nuclear polyhedrosis virus(BmNPV) expression system bioreactor, transgenic Bombyx mori bioreactor, silk glands bioreactor is mainly expounded in this paper.

华·东×春·晨是湖州市农业科学研究院蚕桑研究所育成的一对优质、高产、多丝量四元杂交种，通过分析华‘东、春·晨原种性状和一代杂交种的繁育特性，提出了适应该品种特性的繁育技术和注意事项。

对不同品系秋丰、白玉的6个杂交组合进行了养蚕比较试验,结果表明:在强健性方面,秋丰AF×白玉BC与白玉BC×秋丰AF的成绩最好,体质最强健,而白玉BA×秋丰FA的蚕期和蛹期的健康程度都较低。在茧质方面,以原品系秋丰AB×白玉AB与白玉AB×秋丰AB的成绩最好,白玉BC×秋丰AF的成绩次之、秋丰AF×白玉BC的成绩稍低,而秋丰FA×白玉BA与白玉BA×秋丰FA的成绩最差。

稚蚕人工饲料育具有省力省工、操作简便的特点,尤其是可以提高共育安全系数,杜绝因桑叶污染造成的共育事故,减少小蚕在共育室感染蚕病的机会,有利于保证小蚕健康无病。整个共育过程受外界气候环境影响小,从而有利于蚕茧优质高产。目前,在浙江蚕桑产业滑坡、劳动力紧张的情况下,小蚕共育是蚕桑发展的必然趋势。稚蚕人工饲料育不仅是蚕桑省力化技术的重要措施之一,而且是小蚕共育取得成功的关键技术。摄食性反映了蚁蚕对人工饲料的适应性。