摘要：儿童使用电视、电脑等设备的时间过长会对其视力造成不良影响.本设计采用单↘片机STC90C58控制超声〇波测距传感器,实时监控儿童与被控设备(如电视、电脑显示器←)之间的☆距离,并利用实时时钟(Real Time Clock-简称RTC)模块DS1302来计量儿童使用设备的时间.一旦儿童与电子设备屏幕距离过近或使用╳时间过长,将通过语音报警进行提醒.提醒无效后,便触动继电器开关,强制关闭被☆控设备,以保证儿童正确用眼并进行适当的休息.该系统具有距离和时间等参数设置功能,设置界面具有密码保护以防止儿童随意改动,能够通过RTC内部的RAM区域实现系统设置的掉电保存.
摘要：将阴干粉碎的马缨丹叶片用氯仿、乙酸乙酯、甲醇依次进行提取，3种溶剂的提取物采用点滴≡法、叶碟法、浸渍法等方法测定了对玉米螟3龄幼虫的触杀、胃毒、拒食作用，对3龄以后各龄期、化蛹、羽化等影响及杀卵活性。结果表明：马缨丹叶片氯仿提取物对亚洲玉米螟3龄幼虫的作用效果比乙酸乙酯和甲醇提取物的效果好≡。马缨丹叶片氯仿提取物对亚洲玉米螟幼虫有较强的胃毒和触杀活性，在浓度为200mg/mL时，96h其幼虫的死亡率分别为84.31％和64.29％；对玉米螟3龄幼虫的非选择性的拒食作用高于选择性的拒食作用，浓度为200mg/mL时72h对幼虫的非选择性和选择性拒食作用率分别为71.27％和50.66％；对亚洲玉米螟的卵有毒杀作用，并能延迟卵的孵化，能延缓幼虫的发育，降低化蛹率和羽化率。因此马缨丹叶片中含有♂对玉米螟具有生物活性的物质，但其种类及作用机理有待进一步研究。%Leaves of L .camara were dried in the shade and smashed ,extracted with chloroform ,ethyl ace-tate and methanol in turn .T he stomach poison ,contact poison ,antifeedant ,ovicide and developments of egg hatch and the impact to the larva instars ,pupation and emergence of O .f urnacalis were assayed using the methods of topical application ,stomach poison ,leaf disc ,immersion ,etc ,with the extracts .It shows that the effect of chloroform extract on larva of O . f urnacalis is better than that of the extracts of ethyl acetate and methanol .The mortality of 3rd instars larva are 84.31% and 64.29% respectively using stom-ach and contact poison with chloroform extract at the concentration of 200mg/mL in 96h .The antifeedant effect of no -choice is higher than that of the choice ,and the no -choice and choice anfifeeding rates are 71.27% and 50.66% respectively under the concentration 200mg/mL in 72h .The chloroform extract has ovicidal activity ,can delay the egg incubation ,postpone the development of larva ,reduce the pupation rate and emergence rate .So there are some biological activity substances in the leaves of L .camara w hich a-gainst the O . f urnacalis ,but the isolation and identification of the specific compounds and their active mechanisms to insect need further study .
摘要：Amount of mushroom-seaweed powder ,ratio of mushroom to seaweed and amount of water were evaluated by single-factor test and orthogonal test according to the taste ,preference ,hardness ,springi-ness and chewiness .The result showed that hardness and chewiness of mushroom-seaweed meatball were divided into three classes according to cluster analysis method :first level for hardness was between 400g and 550g ;second level was over 550g ;third level was less than 400g ;first level for chewiness was between 450g and 550g ;second level was over 550g ;third level was less than 450g .The optimum formula was as follows :the amount of mushroom-seaweed powder of 6% ,the mushroom-seaweed ratio of 2∶1 ,the a-mount of water of 70% .%本文以香菇海藻粉添加量、两者配比、加水量为试验因素，以肉丸口感、喜好性、硬度、弹性、咀嚼性为参考指标，采用单因素和正交试验确定了香√菇海藻肉丸的最佳配方工艺。结果表明：聚类分析确定香菇海藻肉丸硬度适宜等级为：一级，400～550g ；二级，＞550g ；三级，≤400g ；咀嚼性适宜等级为：一级，450～550g ；二级，＞550g ；三级，≤450g。香菇海藻肉丸最佳配方为香菇海藻粉添加量为6％，香菇粉：海藻粉为2∶1，加水量为70％。
摘要：将螺旋藻多糖（PSP）与银杏提取物（GBE）按1：1比例配制成复合螺旋藻多糖。昆明种小白鼠随机分为5组（荷瘤对照组∩、阳性对照组、低剂量组、中剂量组、高剂量组），灌服复合螺旋藻多糖，检测复合制剂对S180荷瘤小鼠免疫功能的影响。结果表明：与对照组●相比，灌服低剂量组↙、中剂量组和高剂量组复合螺旋藻多糖：荷瘤小鼠的碳廓清系数分别提高了13.605％，53.061％，112.930％（p＜0.01）；吞噬指〗数分别提高了9.9665％，14.7650％，26.7220％（p＜0.01）；淋巴T细胞增殖率分别提高了30.47％，41.89％，87.66％（p＜0.01）；白细胞介素-6含量分别降低了60.19％、62.92％和69.42％（p＜0.01）。由此说明：复合螺旋藻多糖对S180荷瘤小鼠⌒ 单核巨噬细胞的吞噬能力和淋巴T细胞的增殖转化能力有明显促进作用，并能明显㊣降低IL-6的含量水平。%The polysaccharides from Spirulina Platensis (PSP)was compounded with the efective ingredients of Ginkgo Biloba(GBE) at the ratio of 1:1 .The KunMing rats were randomly divided into 5 groups (tumor-bearing group ,positive control group ,low-dose group ,mediate-dose group ,high-dose group) ,fed with compound polysaccharides from spirulina platensis . Test the effects of compound polysaccharides from spirulina platensis on the immunity function of S 180 tumor-bearing mice .Result :compared with the tumor-bearing group ,the carbon clearance coefficient of low-dose group ,mediate-dose group and high-dose group raised 13.605% ,53.061% and 112.93% (p < 0.01 ) respectively ,the swallowing index of these groups reduced 9.9665% ,14.765% ,26.722% (p< 0.01 )respectively ,the ratio of replication of T lymph cell of these groups raised 30.47% ,41.89% ,87.66% (p<0.01) ,the content of IL-6 of these groups re-duced 60.19% ,62.92% ,69.42% (p<0.01) .The compound polysaccharides from spirulina platensis had obviously enhanced the swallowing ability of Mononuclear macrophages and the proliferation reaction of T lymphocyte of S180 tumor-bearing mice ,reduced the content of IL-6 .
摘要：A method using microwave digestion technique was developed for the determination of lead (Pb) and cadmium (Cd) in fish meal by graphite furnace atomic spectrometry (GFAAS) .Digestion conditions and matrix modifiers were discussed for sample preparation by microwave digestion technique .The opti-mum condition of determination by GFAAS was studied in presence of NH 4 H2 PO4 matrix modifier .In ad-dition ,the accuracy and precision of this method were also studied .The recoveries were 93% ~108.5%(RSD :5.3% ,n=7) and 92% ~101% (RSD :3.2% ,n=7) ,respectively .The detection limits of Pb and Cd were 0.11ng/mL and 0.024ng/mL ,respectively .Fish meal samples treated with Microwave digestion system can greatly reduces magnitude of digestant ,and decrease its processing time .The method is rapid , simple and accuracy .%本文利用微〗波消解法对鱼粉样品进行消解，然后用石墨炉原子吸收光谱法测定鱼粉中的铅和镉，对微波消解条件和基∑体改进剂等一些影响因素进『行了探讨。选用 N H4 H2 PO4作为基体改进剂后，对石墨炉法的测定条件进行了优化，并进行了方法的精密☆度和准确度的考察。测定鱼粉中铅和镉的回收率分别△为93％～108.5％（RSD ：5.3％，n＝7）和92％～101％（RSD ：3.2％，n＝7），检测下限分别为0.1lng/mL和0.024ng/mL。本方法能够减少消化试剂的用量和样品的ξ处理时间、干扰小、准确度高，可以满足分析要求。
摘要：The water samples collected from Laoshan District ,Chengyang District and Jimo City in Qingdao were measured to understand the water quality of rural drinking water sources in the area and provide some reference for using the water safely .The monitoring project of water quality includes the content of total dissolved solids ,total hardness ,alkalinity ,permanganate index of oxygen demand (CODMn ) ,sulfate radi-cal content ,chloride ion content ,Metal ion (Pb and Fe) content and nitrite nitrogen content .The meas-ured results were compared with the criterion listed in Standards for Drinking Water Quality (GB5749 -2006) .The results showed that the contents of ammonia nitrogen and the total dissolved solids were less than that of standards .The over-limit ratio of CODMn ,topped out at 39.1% ,was the highest one ,and it was followed by that of sulphate and Fe ion contents ,with peak values of 35% and 34.8% respectively . The superstandard multiple of sulphate was the highest and was up to 52 to the national standard value . According to the results ,something must be done to reinforce the monitor of the rural water quality and improve the quality of the drinking water .%为了解青岛市农村地区生活饮用水的水∮质状况，为农村居民安全的使用饮用水提供参考，本文以青岛市崂山区、城阳区、即墨市周边农村的生活饮用水为研究对象，进行水样采集和测定，水质监测项目包括：总溶解固体含量、总硬度、碱度、CODMn 、硫酸根含量、氯离子含量、金属离子（Pb、Fe）含量及亚硝态氮等。依据《生活饮用水卫生标准》（GB5749-2006）对测定结果进行分析。结果表明：水样♀中氨氮、总溶解固体量小于标准限值，其它指标均存在超标情况，CODMn的超标率最高，可达39.1％，其次是硫酸盐和铁含量，分别为35％和34.8％。硫酸盐的超标倍数最大，超过国家标准值的52倍。建议加强对农村水质进行监控，改善饮用水的品质，提高农村居民的饮水质量。
摘要：One hundred Laoshan milk goats were randomly selected for investigation of polymorphism of BMPR-IB genes by PCR-SSCP .The results suggested the mutation of G→C at the site of 820 bp of the exon of BMPR-IB gene ,and the frequency of allele A and allele B was 0.855 and 0.145 ,respectively ,loci heterozygosity was 0.248 ,the effective number of alleles was 1.330 ,and the polymorphism information content PIC was 0.217 .The findings could provide a reference for MAS programs for high reproduction performance of Laoshan Milk Goat breeds .%为分子∞标记辅助选择崂山奶山羊高繁殖力提♀供依据，对100只崂山奶山羊耳组织采∮样，利用PCR-SSCP技术对其BM PR-IB基因外显子进行多态性分■析。结果表明，崂山奶山羊BM PR -IB基因外显子的820bp位点↓出现了G→C的突变，A与B等位基因的频率分别为0.855、0.145，此突变位点杂合度为0.248，有效ω 等位基因数为1.330，多态〓信息含量PIC为0.217，为低度多态。
摘要：Basted on rheological properties of wheat flour with lipase ,effects of lipase on the appearance qualities of Chinese steamed bread were investigated by farinograph ,extensograph and colorimeter .The results showed that ,rheological properties of the dough and appearance qualities of Chinese steamed bread were significantly influenced by lipase .Water absorption of the dough was increased by lipase .Shaping of Chinese steamed bread was enhanced with lipase at suitable amount .However ,stability and extensibility of dough ,as well as volume of Chinese steamed bread were decreased when amount of lipase was higher than 3mg/kg .The results of orthogonal test showed that the optimum whitening technology of Chinese steamed bread with lipase were as follows :lipase of 3mg/kg ,pH of 6.25 ,temperature of 33℃ .Under these conditions ,w hiteness of Chinese steamed bread reached 87.21 .%在分析测定脂肪酶对面团流变学特性影响的基础上，通过单因素试验∴研究了脂肪酶作用条件对馒头外观品质的影响，并通过正交试验确定了脂肪酶对馒头增白作用的最适工艺条件。结果表明，脂肪酶影响面粉流变学特性和馒头外观品质。脂肪酶使面团吸水率、筋力增加，加工时间延长。适量添加脂肪酶有利于馒头成型，但添加过量会使面团耐搅◥揉性、延展性和抗拉伸性减弱，不利于馒头胀发。正交试验结果表』明，脂肪酶对馒头增白作用的最适条件为，脂肪酶添加量3mg/kg ，面团pH值为6.25，面团调制温度为33℃，此时馒头白度可达87.21。
摘要：本文以紫玉兰为材◣料，采用超声波结合酶法提取紫玉兰色素，采用单因素和正交实验研究不同酶用量、酶解时间、酶解温度、乙醇体积分数、超声时间、料液比←等条件对色素提取的影响，并确定最佳的提取工艺。同时研究光照、pH值、不同浓度NaCl、碳水化合物和金属离子对紫玉兰色素稳▆定性的影响。结果表明：紫玉兰色素提取的最佳工艺参数为纤维素酶用量4mg/g （花瓣湿重），按1∶15的料液↙比加入60％的乙醇溶液，在50℃酶解80min ，超声辅助提取10min。该色素对强碱和光照不稳定，NaCl和碳水化合物对其有护色作用，Fe3＋和Cu2＋离子对色素稳定性影响较大。%In this paper ,the pigment was extracted by the ultrasonic -assisted enzymatic method .The ex-traction conditions were optimized through the single factor and orthogonal tests .The effects of the dosage of enzyme ,the concentration of extracting agent ,enzymolysis time ,temperature ,ultrasound time and the material/liquid ratio on pigment were studied in this paper .The optimum conditions were as follows :en-zyme dosage 4mg/g (petal weight) ,60% ethanol ,soaking for 80min at 50℃ with the material/liquid ratio of 1 :15 ,ultrasonic extraction of 15min .The stability experimental results showed that the pigment from magnolia liliiflora was applicable in acidic conditions .The NaCl and some carbohydrates had the effect of color-protecting .But the pigment was unstable against light ,alkaline environment and some metal ions such as Fe3+ and Cu2+ .
摘要：In this paper ,the green tea was dried by microwave vacuum ,and the drying characteristics and mathematical model in different microwave power ,vacuum ,loading conditions was draw .Studies show that :With the microwave power increasing ,the water loss rate of green tea also increased .Increasing the vacuum ,the water loss rate increased .When reducing the loading ,the water loss rate increased .It could be divided into acceleration and deceleration two phases in drying process ,and did not have significant con-stant drying phase .Quantifying various factors on the drying rate ,and the mathematical model was estab-lished ,it can provide a theoretical basis for the production of green tea .%采用微波真空干燥方式干燥绿茶，绘制了不同微波功率、真空度、装载量条件下的干燥曲线、干燥速率曲线，对干燥过程中绿茶干燥特性、数学模型进行了研究。研究表明：随着微波功率的增大，绿茶茶叶的干燥速率也在增大。真空度越高，干燥速率越大。装载量越少，干燥速率越大。干燥过程主要分为加速、降速→两阶段，无明显恒速干燥阶段。量化各因素对干燥速率的影响，建立了page数学模型，为绿茶生产提供理论依据。
摘要：J-chain是由浆细胞产生的约15KDa大小的糖蛋白，其可以通过与IgM 和IgA尾部半←胱氨酸的连接启动多聚化过程并≡利用二硫键共价稳定地与多聚Ig A和Ig M 结合。本研究克隆并分析了黑※眉锦蛇（以下简称蛇）J-chain基因在各组织中↘的表达情况，发现与其它物种一致，J-chain基因中用于形成二→硫键的半胱氨酸残基是高度保守的；蛇J-chain基因在脾脏、肠道中的表达量相对较高，这也正符合免疫球蛋白基因↓在各组织中的表达情况。蛇J-chain基因的克隆为研究其多聚免疫球蛋白的特点奠定了良好的基础。%The plasma cell produces the J-chain ,which is a 15-kDa glycoprotein that covalently associates by disulfide linkages with polymeric IgA and IgM .Through the linkage between J -chain and the caudal cysteines of Ig ,the polymerization process could startover .This study cloned the J-chain gene in Elaphe taeniura (hereinafter referred to as snake ) and analyzed the expression levels of it in different tissues .In line with other species ,the cysteine residues used to form disulfide linkages are highly conserved in the snake J-chain gene;Quantitative real-time PCR showed that the J-chain gene was highly expressed in the spleen and intestine ,which is in accordance with other immunoglobulin genes .The cloning of the snake J-chain gene laid a good foundation for researching the polymeric immunoglobulins in snakes .
摘要：In this study ,the variability of annual and seasonal precipitation and reference evapotranspiration in Qingdao during the period 1961-2012 were examined .The methods of linear regression and Pettitt test were used to identify the presence of trends and change point .The results showed that the averaged annual and seasonal precipitation were 666.3mm ,111.0mm ,374.1mm ,145.0mm and 36.2mm ,respectively dur-ing the past 52 years .The time series of annual precipitation ,summer precipitation and autumn precipita-tion exhibited decreasing trend ,whereas the time series of spring and winter precipitation exhibited in-creasing trends during the period of 1961 to 2012 ,but there is no statistically significant trend .The aver-aged annual and seasonal reference evapotranspiration were 952.7mm ,263.5mm ,313.0mm ,255.9mm and 120.3mm ,respectively .The time series of annual and seasonal reference evapotranspiration ,except for the increasing trend in spring season ,exhibited decreasing trend during 1961~2012. A statistically sig-nificant decreasing trend in autumn and winter reference evapotranspiration was detected during the same period .A statistically significant downward shift was detected in the autumn reference evapotranspiration through the Pettitt test around 1995 ,while no change point were detected in the rest of the time series .%利用青岛市1961-2012年的逐日气⌒象观测资料，采用线性倾向估计♂法和Pettitt突变检验方法，分析了青岛市年、四季降水量和参考作物蒸散量的变化趋势和突变情况。结果表明，近52年间，青岛市年、四季降水量分别为666.3mm、111.0mm、374.1mm、145.0mm和36.2mm ；年、夏季和秋季降水量时间序列呈减小趋势，而春季和冬季降水量时间序列则呈增大趋势，但所√有时间序列变化趋势均未通过显著性水平『检验。青岛市多年平均年、四季参考作物蒸散量分别为952.7mm、263.5mm、313.0mm、255.9mm和120.3mm ；除春季参考作物蒸散量时间序列呈增大趋势外，其余时间序列均呈减小趋势；其中，秋季和冬季参考作物蒸散量的减小趋势通过了α＝0.01和α＝0.05显著性水平检验，而其余时间序列的变化趋势均未通过显著性水平检验。青岛市降水量和参考作物蒸散量时间序列中，除秋季参考作物蒸散量出现减小突变外，其他时间序列均未出现突变。
摘要：Optimization of fermentation conditions for fucoidanase production by a newly isolated bacterium RC2-3 was studied using orthogonal test ,response surface methodology (RSM ) and artificial neural net-work (ANN) linked genetic algorithm (GA) .The four significant conditions for fucoidanase production found by orthogonal test were temperature ,pH ,shaking speed and culture time among six variables ,and the highest fucoidanase activity of 186 .36 ± 6.40 U/mL were obtained at the following conditions of 25℃ ,pH5.0 ,180r/min and cultivated for 48h. Further ,RSM and ANN linked GA were also used for op-timization of these four variables. The results of RSM showed that the optimal conditions for fucoidanase production were 28.9℃ ,pH7.8 ,149.5r/min ,and cultivated for 56h ,then the highest fucoidanase activity of 195.84 ± 5.48U/mL would be obtained .The determination coefficient (R2 ) was 0.969 ,which illustra-ted a good fit of the regression model with the experiment al data .The results showed that ANN linked GA was the most efficient method (R2 =0.986) among the three optimization methods ,and the maximum fucoidanase activity of 200.42 ± 6.93U/mL was obtained under the conditions of 26.4℃ ,pH6.9 ,174r/min and cultivated for 55h .ANN linked GA was valuable for the process optimization in the similar area .%利用∑ 正交试验、响应面法（RSM）、人工神经网络（ANN）与遗传算法（GA）联合等三种方法对比优化了RC2-3的发酵产酶条件。正交试验结果表明，对产酶影响显著的因素有发酵温度、pH值、摇床转速和培养时间，当发酵︻温度25℃，初始pH5.0，摇床转速180r/min ，培养时间48h ，能够获得最大酶活力186.36±6.40U/mL ；RSM 法结果表●明，当发酵⌒ 温度为28.9℃，pH值为7.8，摇床转速149.5r/min ，培养时间56h时，能够获得最高酶活力195.84±5.48U/mL ，所建立的方程的决定系数为0.969；ANN 与 GA 联合的优化方法结果表明，当发酵温度①为26.4℃， pH6.9，摇床转速174r/min ，培养时间55h的条件下，能够获取最高酶活力200.42±6.93U/mL ，ANN模型与实验数据的决定系∑数高达0.986，能够更好地反映▓发酵条件对产酶的影响，值得推广应用。
摘要：At the initial stage of the electronic control system research of the plot seeder ,the field test for detection and improvement of the performance is easy to cause the waste of resources and the extension of develoment cycle .In order to solve the problem ,researcher designed the simulator testing system of plot seeder whose main functional units consist of microcontroller MSP430F149 ,input keyboard and liquid crystal display (LCD) .The effective communication among the functional units realized by software de-sign .The experiments showed that the simulator testing system of plot seeder will supply experiment pa-rameters for the electronic control system research of the plot seeder under the laboratory conditions .%在小区∮播种机电控系统的研发初期，为了检测及改进其性能而进行的实地试验，容易造成资源浪费和研发』周期延长。为了解决这个问题，设计了以M S P430 F149单片机、输入键盘和液晶显示屏为主要功能单元的小区播种机模拟试验系统。通过软件设计，实现各个功能单元的有效通信。试验证明，该小区播种机模拟试验系统能够在实验室条件下为小区播种机电控系统的研发提供所需的试验参数。
摘要：用染色体Ψ 常规压片法对‘红霸天’百合（L ilium hybrids‘Hongbatian’）的根尖进行核型分析，并对其染色体制片技术适宜的取样时间进行了探讨。研究发现：‘红霸天’百合根尖取样时间以上午10∶00～10∶30为宜；染色体核型公式：2n＝36＝6m＋24st（4SAT）＋6t；最长与最短染色体的长度比值2.59，臂比值大于2∶1的染色体占全部染色体的比例为83.33％，平均臂比值◤为4.97；核型不对称系数为77.80％。%Using the root of Lilium hybrids ‘Hongbatian’ as materials ,this study aims to uncover the chromosome karyotype and discuss the appreciate sampling time in the chromosome preparation method of L .hybrids ‘Hongbatian’ . The results shows are as follows :The best sampling time of L . hybrids‘Hongbatian’ root is from 10∶00 to 10∶30 in the morning ;Karyotype formulae is 2n=36=6m + 24st (4SAT )+6t ;The ratio of the longest chromosome to the shortest one was 2.59 ;Approximately 83.33%arm ratio of chromosome was more than 2∶ 1 ,and the average ratio of arm was 4.97 ;The asymmetrical karyotype coefficient was 77.80% .
摘要：In order to clarify the optimal planting date of spring-planting peanut affected by global war-ming ,the changes of 5cm-depth soil temperature during peanut planting in the past 30 years ( from 1981 to 2010) and the years between 2001 and 2010 were analyzed .In addition ,the effects of deferent planting dates (April15 ,April 23 ,April 30 ,May7 and May14) on the plant agronomy traits ,yield and yield com-ponents were also studied .Based on the above results ,the optimum planting date of spring-planting pea-nut was recommend between May1 and May10 for the local areas .%在气候变暖影响下，为较准确地确定青岛市春播花生的最佳播期，统计分析了青岛地区常年（1981-2010年）及2001-2010年10年间，花生播种期间5cm地温变化规律；试验研究了4月15日、4月23日、4月30日、5月7日、5月14日5个不同播期处理，对花生●植株性状、产量及产量构成因素等的影响；并结合青岛地区花生生产实际，提出春播花生最佳播期为5月1日～10日。
摘要：本研究于2011年6月～2012年5月期间对青岛城阳水产品批发市场中销售的栉孔扇贝、太平洋牡蛎、紫贻贝、毛蚶和杂色花蛤体内的Cd含量进行了为期一年的连续跟踪调查，每月定期取样后采用火焰原子吸收分光光度法测定这五种贝类中的Cd含量。结果发现，除杂色花蛤外，调查期间的栉孔扇贝、太平洋牡蛎、紫贻贝和毛蚶四种贝类中的Cd含量均超过了0.1mg/kg （以贝类含水量90％计算）。其中栉孔扇贝和太平洋牡蛎中Cd污染最为严重，其含Ψ量分别在7.1～16.3mg/kg · dw和4～12.7mg/kg · dw之间。%The Cd contamination level of five common marine bivalves sold in the Chengyang Aquatic Mar-ket of Qingdao ,including Crassostrea gigas ,Mytilus edulis ,Scapharcasubcrenata ,Ruditapes philippi-narum and Chlamys f errari .The bivalves were sampled monthly between June 2011 and May 2012 and the Cd contents were determined by atomic absorption spectrum .The results indicated that the Cd con-tents of all the bivalves ,except Ruditapes philippinarum ,exceeded 0.1mg/kg(assuming a water content of 90% ) in the entire period investigated .Among the bivalves , Chlamys f errari and Crassostrea gigas had the highest Cd contents and the values ranged 7.1~16.3mg/kg · dw and 4~12.7mg/kg · dw respec-tively .
摘要：In order to solve the problem that the domestic peanut harvesting machinery can ’t automatically monitor yield on-line ,a kind of peanut yield monitor system was designed .This system is divided into two parts :the host computer and network-based long-distance management part ,and the mechanical and elec-trical control part for lower computer .This article mainly introduces the host computer management and network-based long-distance management system software which is developed by C # .The host computer management part is based on C/S model ,uses the socket communication interface technology and SQL Server 2008 database .The host computer can wirelessly real-time receive the monitor information sent by GPRS module ,store the monitor information in the database ,display and manage the monitor information and so on .The network-based long-distance management part is based on B/S model and the three-layer network architecture ,uses ASP .NET technology ,which realizes the long-distance management of the pea-nut yield data through network for the registered users with different grades .Experiments have demon-strated the feasibility of the designed scheme and the availability of the developed system .%为了解决我国自主研发的花生联合收获机目前还不能实现产量的在线测量问题，研发了花生产量实时测量系统。该测产系统包含上位机、网络远程管☉理部分和下位机机电测控两部分，本文将ぷ介绍基于C＃语言开发的上①位机和网络远程管理系统软件的开发。其中，上位机管理部分基于C/S模型，采用Socket通讯接口技术以及SQL数据库，实现了上位机实时无线接收下位机GPRS模块传送的测产数据、存储数据到数据库中、显示与管理测产信ぷ息等功能。网▓络远程管理部分基于B/S模型及三层网络体系结构，采用 ASP ．NET 技术，实现了不同授权注册用户对花生测产信息的远程ㄨ管理和信息共享功能。实验结果验证了该系统方案的可行性和系统的实用性。