Analysis of Physiological and Biochemical Indexes of White Suffolk Sheep,White-tibetan Sheep and Tibetan Sheep

In order to compare the physiological and biochemical indexes of different sheep populations in plateau area,we measured the physiological and biochemical indexes of White Suffolk sheep,White-tibetan sheep and Tibetan sheep in four seasons.The body temperature,respiration and heart rate of White Suffolk sheep,White-tibetan sheep and Tibetan sheep throughout the year were（38.96±0.23）-（40.80±0.74）℃,（27.20±7.73）-（74.56±10.91）times/min,and（83.10±2.42）-（106.25±7.07）times/min,respectively.The main blood physiological indexes of White-tibetan sheep were between those of Suffolk sheep and Tibetan sheep or close to that of Tibetan sheep,the indexes of WBC in summer,HGB and RDW-CV in autumn,RDW-CV in winter were close to that of White Suffolk sheep.The main blood biochemical indexes of White-tibetan sheep were between that of White Suffolk sheep and Tibetan sheep or close to that of Tibetan sheep,but the indexes of ALB in spring,AST in summer,ALP and CHOL in autumn,and ALP in winter were close to that of White Suffolk sheep.It revealed that the adaptability of White-tibetan sheep was prior to White Suffolk sheep,and tended to Tibetan sheep in the plateau environment.

Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers

A very-high color rendering index white organic light-emitting diode(WOLED) based on a simple structure was successfully fabricated. The optimized device exhibits a maximum total efficiency of 13.1 and 5.4 lm/W at 1,000 cd/m2. A peak color rendering index of 90 and a relatively stable color during a wide range of luminance were obtained. In addition, it was demonstrated that the 4,40,400-tri(9-carbazoyl) triphenylamine host influenced strongly the performance of this WOLED.These results may be beneficial to the design of both material and device architecture for high-performance WOLED.

Analysis of Physiological and Biochemical Indexes of White-tibetan Sheep at Different Months of Age

To study the physiological and biochemical indexes of White-tibetan sheep in plateau environment, we measured the physiological and biochemical inde- xes of White-tibetan sheep at 3, 6, 9, 12, 15, 18,21 and 24 months of age. The results showed that the body temperature, respiration and heart rate of White-ti- betan sheep at 3 - 24 months of age were （38.89 ±0. 56） - （39.83 ± 0.32） ℃, （26.00±6.67 ） - （58.64 ± 12.67 ） times/rain and （ 83.90 ± 7.64） - （111.36 ±7.46） times/rain, respectively. The blood physiological indexes of WBC, HCT and RDW-CV at 3, 6, 15 and 18 months of age were lower than those at 9, 12, 21 and 24 months of age. On the contrary, the indexes of RBC, MCV, MCH and MCHC at 3, 6, 15 and 18 months of age were higher than those at 9, 12, 21 and24 months of age, while HGB and PLT did not vary with months of age. For blood biochemical indexes, ALT, AST, TP, ALB, LDH and CHOL reached the maximums at 21 months of age, while ALP, PCHE and GLU reached the maximums at 3 months of age. Besides, the GLO and GA reached the maxi- mums at 18 and 24 months of age, respectively. The physiological and biochemical indexes of White-tibetan sheep followed certain rules in growth and development process, and might be affected by plateau climate and season.

High color rendering index white organic light-emitting diode using levofloxacin as blue emitter

Levofloxacin （LOFX）, which is well-known as an antibiotic medicament, was shown to be useful as a 452-nm blue emitter for white organic light-emitting diodes （OLEDs）. In this paper, the fabricated white OLED contains a 452-nm blue emitting layer （thickness of 30 nm） with 1 wt% LOFX doped in CBP （4,4＇-bis（carbazol-9-yl）biphenyl） host and a 584-nm orange emitting layer （thickness of 10 nm） with 0.8 wt% DCJTB （4-（dicyanomethylene）-2-tert-butyl-6-（1,1,7,7- tetramethyljulolidin-4-yl-vinyl）-4H-pyran） doped in CBE which are separated by a 20-nm-thick buffer layer of TPBi （2,2＇,2＂-（benzene-1,3,5-triyl）-tri（1-phenyl-lH-benzimidazole）. A high color rendering index （CRI） of 84.5 and CIE chromaticity coordinates of （0.33, 0.32）, which is close to ideal white emission CIE （0.333, 0.333）, are obtained at a bias voltage of 14 V. Taking into account that LOFX is less expensive and the synthesis and purification technologies of LOFX are mature, these results indicate that blue fluorescence emitting LOFX is useful for applications to white OLEDs although the maximum current efficiency and luminance are not high. The present paper is expected to become a milestone to using medical drug materials for OLEDs.

Fabrication of High Color Rendering Index White Light Emitting Diodes from Gold Nanoclusters

We demonstrated gold nanoclusters as color tunable emissive light converters for the application of white light emitting diodes (WLEDs). A blue LED providing 460 nm to excite gold nanoclusters mixed with UV curable material generates broad bandwidth emission at the visible range. Increasing the amount of gold nanoclusters, the correlated color temperature of WLEDs tuned from cold white to warm white, and also results in the variation of color rendering index (CRI). The highest CRI in the experiment is 92.

Regulating Charge and Exciton Distribution in High-Performance Hybrid White Organic Light-Emitting Diodes with n-Type Interlayer Switch

The interlayer(IL) plays a vital role in hybrid white organic light-emitting diodes(WOLEDs); however,only a negligible amount of attention has been given to n-type ILs. Herein, the n-type IL, for the first time,has been demonstrated to achieve a high efficiency, high color rendering index(CRI), and low voltage trade-off.The device exhibits a maximum total efficiency of 41.5 lm W^(-1), the highest among hybrid WOLEDs with n-type ILs. In addition, high CRIs(80–88) at practical luminances(C1000 cd m^(-2)) have been obtained, satisfying the demand for indoor lighting. Remarkably, a CRI of 88 is the highest among hybrid WOLEDs. Moreover, the device exhibits low voltages, with a turn-on voltage of only 2.5 V([1 cd m^(-2)), which is the lowest among hybrid WOLEDs. The intrinsic working mechanism of the device has also been explored; in particular, the role of n-type ILs in regulating the distribution of charges and excitons has been unveiled. The findings demonstrate that the introduction of n-type ILs is effective in developing high-performance hybrid WOLEDs.

Glycemic Index of Sugars Extracted from Immature Coconut Water: Case of Coconut Palms (<i>Cocos nucifera</i>L.) WAT, MYD and PB121⁺

In order to do a best stipulation on her consumption, it is necessary to know if a food provoke faintly, fairly or highly the glyceamia. The aim of this work was to evaluate the glycemic index of coconut water sugar from three coconuts varieties. So, with a cohort of 15 people, a capillary blood was collect after sugar ingestion and the glycaemia read directly on a glucometer. The result showed that the brown and white sugar from coconut sugar can be classified as low glycemic index food. Also, the glycemic indexes of white coconut water sugar are 2 to 3 more lower than that the brown sugar. The glycemic indexes of sugars vary according to the variety of coconut used. The sugars of the coconut palm (MYD) are more hyper-glycemic than those of the hybrid (PB121+) which is more hyperglycemic than the sugars of the coconut palm (WAT). Thus, with a controlled consumption, the coconut water sugars could be the sugars that are best for the health of the healthy and diabetic populations because it raises slightly the postprandial glucose.

Phosphor-free white light-emitting diodes

The multiple color-matching schemes that could improve the color rendering index for phosphor-free white LEDs are discussed. Then we review a few of the recent research directions for phosphor-free white LEDs, which include the development of monolithic GaN-based white LEDs and hybrid integrated GaN-based and A1GalnP-based white LEDs. These development paths will pave the way toward commercial application of phosphor-free white LEDs in the coming years.

饲养密度对笼养白羽肉鸡生长性能、羽毛评分、血清生化和免疫指标的影响

试验旨在探究不同饲养密度对笼养白羽肉鸡生长性能、羽毛评分、血清生化和免疫指标的影响。试验选取504只体重相近、健康状况良好的1日龄科宝白羽肉鸡母雏,随机分为3组,每组8个重复(笼)。7~14日龄3组饲养密度分别为16只/m^(2)、17只/m^(2)、18只/m^(2),15~39日龄3组饲养密度为13只/m^(2)、14只/m^(2)、15只/m^(2)。结果显示:(1)不同饲养密度对7~14日龄和15~28日龄肉鸡平均采食量和料重比产生显著影响(P<0.05),且15~28日龄时,14只/m^(2)组平均日增重显著高于13只/m^(2)组(P<0.05),13只/m^(2)组料重比显著高于15只/m^(2)组(P<0.05)。29~39日龄13只/m^(2)组和14只/m^(2)组平均日增重显著高于15只/m^(2)(P<0.05);(2)不同饲养密度对肉鸡14日龄主翼羽长度产生显著影响(P<0.05);(3)不同饲养密度对肉鸡14日龄和39日龄羽毛评分产生显著影响(P<0.05);(4)不同饲养密度对肉鸡血清中碱性磷酸酶(ALP)活力、三碘甲状腺原氨酸(T3)和甲状腺素(T4)的含量产生显著影响(P<0.05),17只/m^(2)组显著高于16只/m^(2)组和18只/m^(2)组(P<0.05),14只/m^(2)组显著高于13只/m^(2)组和15只/m^(2)组(P<0.05);(5)不同饲养密度对肉鸡14日龄和39日龄血清中白细胞介素-4(IL-4)、白细胞介素-6(IL-6)、白细胞介素-10(IL-10)和白细胞介素-1β(IL-1β)含量产生显著影响(P<0.05)。研究表明,笼养科宝白羽肉鸡7~14日龄适宜饲养密度为17只/m^(2),15~39日龄适宜饲养密度为14只/m^(2)。

双金花茶改善免疫低下小鼠免疫功能的实验研究

目的研究双金花茶对免疫低下小鼠免疫功能的影响,促进该药临床应用和产业发展。方法将120只小鼠分为双金花茶高剂量组(4 g/kg)、双金花茶中剂量组(2 g/kg)、双金花茶低剂量组(1 g/kg)、阳性组(归芪补血口服液2.0 g/kg)、模型组、空白组,每组20只。除空白组外,其他各组给予腹腔注射环磷酰胺。观察6组小鼠给药前后的精神状态、毛发、活动、饮食、二便量情况。比较6组小鼠给药后的红细胞(RBC)、血红蛋白(HGB)、红细胞压积(HCT)、网织红细胞百分比(Ret)、血小板(PLT)、白细胞(WBC)、体重、胸腺与脾脏的重量及脏器指数。通过NK细胞活性实验、碳廓清实验,观察双金花茶对小鼠自然杀伤细胞活性和吞噬细胞吞噬能力的影响。结果给药干预14 d后,双金花茶各剂量组和阳性组小鼠活跃度增加,饮食、便尿量和体力有一定的恢复。模型组小鼠血象WBC、Ret、RBC、HGB、HCT、PLT、NK细胞活性均明显低于空白组(P<0.05、P<0.01)。双金花茶高中剂量组、阳性组小鼠血象WBC、Ret、RBC、HGB、HCT、PLT均高于模型组,但差异均无统计学意义(均P>0.05)。双金花茶各剂量组与阳性组NK细胞活性明显高于模型组(P<0.01)。模型组体重、胸腺重、脾重均明显低于空白组(P<0.05)。双金花茶高剂量组、阳性组小鼠体重和脾重明显高于模型组(P<0.05)。双金花茶各剂量组、阳性组小鼠胸腺重量明显高于模型组(P<0.05)。模型组的吞噬指数和廓清指数明显低于空白组(P<0.01)。双金花茶高剂量组、阳性组廓清指数和吞噬指数明显高于模型组(P<0.01)。双金花茶中剂量组廓清指数明显高于模型组(P<0.05)。结论双金花茶可改善免疫低下实验小鼠的免疫功能,为双金花茶的临床应用以及产业发展提供有利参考依据。

Color-converted remote phosphor prototype of a multiwavelength excitable borosilicate glass for white light-emitting diodes

We report a unique red light-emitting Eu-doped borosilicate glass to convert color for warm white light-emitting diodes. This glass can be excited from 394 nm-peaked near ultraviolet light, 466 nm-peaked blue light, to 534 nm- peaked green light to emit the desired red light with an excellent transmission in the wavelength range of 400-700 nm which makes this glass suitable for color conversion without a great cost of luminous power loss. In particular, when assembling this glass for commercial white light-emitting diodes, the tested results show that the color rendering index is improved to 84 with a loss of luminous power by 12 percent at average, making this variety of glass promising for inorganic ＂remote-phosphor＂ color conversion.

植物提取物对徐淮白山羊生长性能、血清生化指标及免疫功能的影响

试验旨在探究不同水平的植物提取物对徐淮白山羊生长性能、血清生化指标及机体免疫功能的影响,确定植物提取物在徐淮白山羊养殖生产中的适宜添加水平。试验选择48只健康的徐淮白山羊,按照单因素试验设计,随机分为4组,每组3个重复,每个重复4只羊。对照组饲喂基础饲粮,试验组饲喂含有0.1%、0.2%和0.4%的植物提取物的饲粮。预试期1 w,正式试验期为8 w。试验结束后,测定各组徐淮白山羊的生长性能、生化指标及免疫指标。结果表明:与对照组相比,0.2%和0.4%植物提取物组的末重和平均日增重显著增加(P<0.05),料重比显著降低(P<0.05),腹泻率分别显著降低了33.88%和41.82%(P<0.05)。与对照组相比,0.2%和0.4%植物提取物组徐淮白山羊血清尿素氮、胆固醇含量显著降低(P<0.05),白蛋白、总蛋白、高密度脂蛋白、生长激素含量显著升高(P<0.05);所有试验组徐淮白山羊血清谷草转氨酶活性均显著降低(P<0.05)。与对照组比,0.2%植物提取物组徐淮白山羊血清白细胞介素-4含量显著增加(P<0.05),白细胞介素-22含量显著降低(P<0.05);所有试验组徐淮白山羊血清白细胞介素-6、肿瘤坏死因子-α含量显著降低(P<0.05);0.2%和0.4%植物提取物组徐淮白山羊血清白细胞介素-10、转化生长因子-β含量均显著升高(P<0.05)。研究表明,饲喂适量的植物提取物可改善徐淮白山羊生长性能、免疫功能及机体健康状态,且以0.2%的添加水平效果较好。

NaYSiO_(4)∶Ce^(3+)蓝色荧光粉的发光性质及其在白光发光二极管上的应用

采用高温固相法合成了NaYSiO_(4)∶xCe^(3+)(0.01≤x≤0.05)系列蓝色荧光粉。NaYSiO_(4)∶xCe^(3+)荧光粉在250~360 nm之间的宽带吸收能与紫外LED芯片很好地匹配。NaYSiO_(4)∶xCe^(3+)荧光粉中存在多个Ce^(3+)离子荧光中心,且在紫外光激发下表现出峰值波长位于414 nm附近的宽带蓝光发射。NaYSiO_(4)∶0.02Ce^(3+)荧光粉在300~350 nm紫外光激发下量子效率在25%以上。NaYSiO_(4)∶0.02Ce^(3+)荧光粉表现出优良的化学稳定性,在水中浸泡14 d后荧光强度和量子效率几乎不变。将NaYSiO_(4)∶0.02Ce^(3+)蓝色荧光粉、商用(Sr,Ba)_2SiO_(4)∶Eu^(2+)绿色荧光粉和商用(Ca,Sr)AlSiN_(3)∶Eu^(2+)红色荧光粉涂覆于310 nm紫外LED芯片上制备得到了显色指数高达95的LED器件。当驱动电流从50 mA逐渐增大到300 mA时,制备的LED器件表现出稳定的暖白光发射,其色坐标几乎不变。上述结果说明,本研究报道的NaYSiO_(4)∶0.02Ce^(3+)蓝色荧光粉在紫外LED芯片驱动的白光发光二极管照明上有着潜在应用价值。

冠周脂肪衰减指数及斑块定量特征与脑白质高信号的相关性分析

目的:探讨冠状动脉周围脂肪衰减指数(fat attenuation index,FAI)及斑块定量特征与脑白质高信号(white matter hyperintensity,WMH)的相关性。方法:回顾性搜集2021年1月—2022年12月407例患者的临床、冠状动脉CT血管成像(coronary computed tomography angiography,CCTA)及头颅磁共振成像(magnetic resonance imaging,MRI)资料。采用Fazekas评分评估WMH严重程度,并将其分为轻度WMH组(Fazekas评分0~2分)和中重度WMH组(Fazekas评分3~6分),比较两组患者的临床资料、FAI及斑块定量参数,寻找中重度WMH的独立影响因素。结果:FAI和斑块定量参数在两组患者间的差异有统计学意义(P<0.05)。多因素Logistic回归结果显示,年龄(OR=1.116,95%CI:1.074~1.160,P<0.001)、冠心病(OR=2.737,95%CI:1.270~6.017,P=0.010)、斑块负荷(OR=4.142,95%CI:1.228~13.977,P=0.022)及FAI>-70.1 HU(OR=5.089,95%CI:1.899~13.640,P=0.001)是中重度WMH的独立影响因素。结论:年龄大、患有冠心病、斑块负荷大、FAI>-70.1 HU的患者更容易发生中重度WMH,为冠脉粥样硬化和WMH的联合管理提供了理论依据。

低GI芋圆干的研制

以香芋为主要原料,制备低血糖生成指数(glycemic index,GI)芋圆干。通过研究白芸豆粉、燕麦粉、荞麦粉3种低GI原料对芋圆干感官评分的影响,筛选出最佳低GI原料。在单因素试验的基础上,以GI、弹性、复水比和感官评分为指标,通过正交试验优化低GI芋圆干的配方及熟化工艺。结果表明:最佳配方为以芋泥质量为基准,白芸豆粉、木薯淀粉、水、白糖添加量分别为12%、75%、22%、20%;最佳熟化工艺参数为芋圆直径1.0 cm、水煮时间2.5 min、料液比1∶35(g/mL)。在此条件下制出的芋圆干GI为53.97,感官评分为81.36。

不同品种与日龄鸭骨密度、骨矿物含量以及器官指数比较分析

为研究品种和日龄对鸭骨密度、骨矿物含量以及器官指数的影响,试验以润州凤头白鸭、连城白鸭和樱桃谷鸭为研究对象,分别在21、35、49、63日龄时在3个群体中各选30只,取其心脏、肝脏和左侧胫骨,计算心脏指数和肝脏指数并测定胫骨的骨密度和骨矿物含量,对三个品种的骨密度、骨矿物含量、心脏指数和肝脏指数进行比较分析。结果显示:随日龄增加,三个品种鸭的肝脏指数均显著降低(P<0.05),而心脏指数没有变化(P>0.05)。连城白鸭心脏指数显著高于樱桃谷鸭(P<0.05)。21日龄时润州凤头白鸭肝脏指数显著高于樱桃谷鸭和连城白鸭(P<0.05)。49日龄时樱桃谷鸭肝脏指数显著低于连城白鸭和润州凤头白鸭(P<0.05)。品种和日龄对胫骨骨密度和骨矿物含量有显著影响(P<0.001)。润州凤头白鸭和连城白鸭骨密度随日龄增长均显著升高(P<0.05),而樱桃谷鸭骨密度随日龄增长变化不显著(P>0.05)。21、35和49日龄时,樱桃谷鸭骨密度均显著高于连城白鸭和润州凤头白鸭(P<0.05)。三个品种鸭骨矿物含量均随着日龄增加而逐渐增加,并且樱桃谷鸭的骨矿物含量显著高于连城白鸭和润州凤头白鸭(P<0.05),而润州凤头白鸭骨矿物含量显著高于连城白鸭(P<0.05)。润州凤头白鸭胫骨长与肝脏指数极显著负相关(P<0.01),连城白鸭胫骨长与骨密度呈显著正相关(P<0.05)。研究表明品种和日龄对鸭骨密度、骨矿含量、心脏指数和肝脏指数均有影响显著,樱桃谷鸭的BMD和BMC高于连城白鸭和润州凤头白鸭,但心脏和肝脏指数要小于连城白鸭和润州凤头白鸭。

茯苓对皖西白鹅屠宰性能和血清生化指标的影响

目的探讨饲料中添加茯苓对皖西白鹅屠宰性能等表型性状的影响。方法试验选用同一天孵化的56日龄皖西白鹅40只(公鹅)。随机分成2组,每组20只。试验组在常规育肥期饲料中添加2 g/kg的茯苓粉剂,对照组按常规饲料饲喂不添加茯苓,试验周期35 d。91日龄,2组鹅分别采集并分离血清,测定血清相关生化指标;测定2组鹅主要屠宰性能指标。结果试验组的屠体率(93.07%)极显著高于对照组(92.51%)(p<0.01);试验组的腹脂率(2.03%)显著小于对照组(3.19%)(p<0.05);试验组的肝脏系数(2.92%)极显著高于对照组(2.05%)(p<0.01);试验组的白蛋白含量(14.52 g/L)显著低于对照组(16.75 g/L)(p<0.05);然而试验组的谷草转氨酶(25.31 U/L)、谷丙转氨酶(14.07 U/L),均显著高于对照组(谷草转氨酶9.78 U/L、谷丙转氨酶9.69 U/L)(p<0.05)。结论在皖西白鹅日粮中添加2 g/kg的茯苓粉,有助于提高和改善其屠宰性能等指标。

平衡赖氨酸和蛋氨酸的低蛋白日粮对育雏期皖西白鹅血液生化和胸腺结构的影响

目的:探究平衡赖氨酸和蛋氨酸的低蛋白日粮对育雏期皖西白鹅血液免疫指标和胸腺结构的影响。方法:选用180只1日龄皖西白鹅作为研究对象,随机分为6组,每组30只;试验采用3×2因子设计(不同蛋白水平:20%、18%、16%,分别平衡赖氨酸、蛋氨酸),于14和28日龄分别采集血液和胸腺,研究不同氨基酸平衡模式及蛋白水平对育雏期皖西白鹅血液免疫指标以及胸腺结构的影响。结果:14日龄时,D组MCV、MCH显著高于E、F组(P<0.05);F组血清TP、ALB、AST含量显著高于D、E组(P<0.05),D组UA极显著高于F组(P<0.01);A组TG含量显著高于B、C组(P<0.05);28日龄时低蛋白组ALP显著高于高蛋白组。14与28日龄各组胸腺器官指数无显著差异(P>0.05);结构变化不明显(P>0.05)。结论:低蛋白日粮平衡氨基酸可以提高育雏期皖西白鹅的蛋白质利用率,降低尿酸沉积,且对胸腺发育没有负面影响。

迈克耳孙干涉仪白光干涉现象分析

在利用迈克耳孙干涉仪观察白光干涉并测量透明介质折射率的实验中,一个关键的步骤是在没有引入待测介质时观察到白光干涉的基础上,移动一臂的反射镜(动镜)使得引入介质后干涉条纹再次出现.在实际的实验中,会出现动镜移动的距离为标准结果一半时就观察到干涉图样的情况.本文从理论上分析这一现象出现的原因,并设计对比实验进行了实验分析.本文的理论和实验结果表明这种现象源于光束单次通过尺寸较小且只占视场小部分区域的待测介质.另外,该次干涉条纹出现在介质区域之外,而标准结果的条纹出现在介质区域之内.

增深剂对面料防紫外线性能的影响

文章根据低折射率树脂增深剂能减少纱线及面料表面反射光的特性,研究了增深剂种类、后整理工艺、面料规格对面料防紫外线性能的影响。结果表明:在不降低白度的情况下,添加增深剂有助于提升白色面料的防紫外线性能;增深剂种类不同,对面料防紫外线性能的提升程度不同,酯类增深剂对防紫外线性能的提升优于硅类增深剂;相比丝光和液氨整理后加入增深剂,退浆后加入增深剂对面料防紫外线性能的提升更大;焙烘加工不利于增深剂对面料防紫外线性能的提升;增深剂对不同规格面料防紫外线性能的提升程度不同,对斜纹面料的提升优于平纹面料。