An aqueous BiI_(3)-Zn battery with dual mechanisms of Zn^(2+)(de)intercalation and I^(-)/I_(2)redox

The development of aqueous battery with dual mechanisms is now arousing more and more interest.The dual mechanisms of Zn^(2+)(de)intercalation and I^(-)/I_(2)redox bring unexpected effects.Herein,differing from previous studies using Zn I_(2)additive,this work designs an aqueous Bi I_(3)-Zn battery with selfsupplied I^(-).Ex situ tests reveal the conversion of Bi I_(3)into Bi(discharge)and Bi OI(charge)at the 1st cycle and the dissolved I^(-)in electrolyte.The active I^(-)species enhances the specific capacity and discharge medium voltage of electrode as well as improves the generation of Zn dendrite and by-product.Furthermore,the porous hard carbon is introduced to enhance the electronic/ionic conductivity and adsorb iodine species,proven by experimental and theoretical studies.Accordingly,the well-designed Bi I_(3)-Zn battery delivers a high reversible capacity of 182 m A h g^(-1)at 0.2 A g^(-1),an excellent rate capability with 88 m A h g^(-1)at 10 A g^(-1),and an impressive cyclability with 63%capacity retention over 20 K cycles at 10 A g^(-1).An excellent electrochemical performance is obtained even at a high mass loading of 6 mg cm^(-2).Moreover,a flexible quasi-solid-state Bi I_(3)-Zn battery exhibits satisfactory battery performances.This work provides a new idea for designing high-performance aqueous battery with dual mechanisms.

Dual-doping for enhancing chemical stability of functional anionic units in sulfide for high-performance all-solid-state lithium batteries

The sulfide-based solid-state electrolytes(SEs)reactivity toward moisture and Li-metal are huge barriers that impede their large-scale manufactu ring and applications in all-solid-state lithium batteries(ASSLBs).Herein,we proposed an Al and O dual-doped strategy for Li_(3)PS_(4)SE to regulate the chemical/electrochemical stability of anionic PS_(4)^(3-)tetrahedra to mitigate structural hydrolysis and parasitic reactions at the SE/Li interface.The optimized Li_(3.08)A_(10.04)P_(0.96)S_(3.92)O_(0.08)SE presents the highestσLi+of 3.27 mS cm^(-1),which is~6.8 times higher than the pristine Li_(3)PS_(4)and excellently inhibits the structural hydrolysis for~25 min@25%humidity at RT.DFT calculations confirmed that the enhanced chemical stability was revealed to the intrinsically stable entities,e.g.,POS33-units.Moreover,Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)SE cycled stably in Li//Li symmetric cell over 1000 h@0.1 mA cm^(-2)/0.1 mA h cm^(-2),could be revealed to Li-Al alloy and Li_(2)Oat SE/Li interface impeding the growth of Li-dendrites during cycling.Resultantly,LNO@LCO/Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)/Li-In cell delivered initial discharge capacities of 129.8 mA h g^(-1)and 83.74%capacity retention over 300 cycles@0.2 C at RT.Moreover,the Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)SE presented>90%capacity retention over 200 and 300 cycles when the cell was tested with LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)(NCA)cathode material vs.5 and 10 mg cm^(-2)@RT.

Outcomes after combined excisional goniotomy and manual small incision cataract surgery

AIM: To report the long-term outcomes of combined excisional goniotomy and manual small incision cataract surgery(MSICS).METHODS: This is a retrospective case series of patients with open angle glaucoma and visually significant cataracts that underwent combined excisional goniotomy and MSICS with one-year follow-up. The medical history, demographic information, and clinical characteristics of each case were recorded. Data regarding changes in vision, intraocular pressure(IOP), the number of glaucoma medications, and the evolution of the disease after surgery were reported. RESULTS: Three patients, with open angle glaucoma and cataracts underwent combined excisional goniotomy and MSICS without adverse events. All patients had improvement in vision compared to baseline measurements. The range of IOP at baseline was from 14 to 18 mm Hg and decrease to a range of 10 to 14 mm Hg after one year of follow-up. Additionally, two patients also decreased their dependence on IOP-lowering medications at the last follow up visit with one patient maintaining baseline level of medication use.CONCLUSION: A combination of excisional goniotomy and MSICS illustrates both the safety and efficacy to treat patients with visually significant cataract and glaucoma. This procedure allows for a more cost-effective surgical approach that matches the needs of resource strained territories around the globe.

Bis(1-(4-(dimethylamino)benzylidene)-4-phenylthiose micarbaznato)palladium(Ⅱ):Synthesis,Crystal Structure and Its Dual Fluorescence Property

The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichlorobis（benzonitrile）palladium（Ⅱ） in methanol,and its structure was characterized by single-crystal X-ray diffraction.The crystal of PdL2 was obtained in dimethyl-formamide（DMF） solvent with solvent molecules involved in the cell and crystallizes in the monoclinic system,space group C2 with a = 18.485（15）,b = 7.090（5）,c = 17.595（11） ,β = 121.21（3）o,V = 1972（2） 3,Z = 2,Mr = 847.40,Dc = 1.427 g/cm3,μ = 0.624 mm-1,F（000） = 880,R = 0.0607 and wR = 0.1358.The Pd atom adopts a distorted square planar coordination geometry with two Pd-N and two Pd-S bonds.The ligand loses a proton from its tautomeric thiol form and coordinates to the Pd atom via mercapto sulfur and the imine nitrogen atom,which binds to palladium as bidentate N,S-donors forming five-membered chelate rings.The complex formed hydrogen bonding interaction with solvent DMF molecules from the hydrogen of phenylamine to the oxygen of DMF and several intramolecular hydrogen bonds.Pd（Ⅱ） perturbed ligand π-π＊ transition and metal-to-ligand charge transfer（MLCT） transition are observed in its electronic absorption spectra.The complex exhibits intraligand 1π-π＊（IL） state and MLCT state dual fluorescent emissions in organic solvent at room temperature.

2D Coupled 3D:A New Numerical Model for Dual - Structured - Aquifer System

This paper points out that a successful numerical simulation is to construct a correct conceptional model which is very dose to the natural condition. A new model, two dimensional coupled three dimensional model (2D -3D ) is presented in the Present paper,which is the most suitable one for the dual - structured - aquifer system. An example of Wenyinghu area is shown.By using the 2D-3D model, a satisfied result of the simulated area is achieved.

内窥镜在下皱襞切口双平面光面假体隆乳中的应用

目的探讨内窥镜在下皱襞切口双平面光面假体隆乳中应用的可行性、安全性及有效性。方法下皱襞切口隆乳术中,在剥离胸大肌后间隙时置入内窥镜,可视化下进行腔隙的精准剥离、确切止血,可减少组织损伤。对手术时间、住院时间、引流情况、舒适度、并发症、术后效果、满意率等进行分析。结果本组共108例患者,均采用全身麻醉,均使用光面假体,均采用双平面技术。38例选择曼托假体,48例选择娜绮丽假体,14例选择星熠假体,8例选择伊思雅假体。假体大小220~350 cc。1型双平面98例(90.7%),2型双平面8例(7.4%),3型双平面2例(1.9%)。平均手术时间72 min,平均住院2 d。放置引流患者30例(27.8%),未放置引流患者78例(72.2%)。2个乳房(0.9%)出现血肿,1个乳房(0.5%)出现Ⅲ级包膜挛缩,2个乳房(0.9%)出现假体移位,3个乳房(1.4%)术后瘢痕明显。术后镇痛者18例(16.7%),未镇痛者90例(83.3%)。术前乳头到下皱襞距离为(5.80±0.43)cm,术后为(8.05±0.33)cm,差异显著(P<0.05)。达到患者预期并对大小、形态、手感等非常满意的有88例(81.5%),满意15例(13.9%),满意率95.4%。结论在下皱襞切口中应用内窥镜进行双平面光面假体隆乳效果良好,满意率较高,并发症较少,是可行并安全、有效的。

Spectral Properties and Solubilization Location of 2′-Ethylhexyl 4-（N,N-Dimethylamino）benzoate in Micelles

Dual fluorescence and UV absorption of 2′-ethylhexyl 4-（N,N-dimethylamino）benzoate （EHDMAB） were investigated in cationic, non-ionic and anionic micelles. When EHDMAB was solubilized in different micelles, the UV absorption of EHDMAB was enhanced. Twisted intramolecular charge transfer （TICT） emission with longer wavelength was observed in ionic micelles, whereas TICT emission with shorter wavelength was obtained in non-ionic micelles. In particular, dual fluorescence of EHDMAB was significantly quenched by the positively charged pyridinium ions arranged in the Stern layer of cationic micelles. UV radiation absorbed mainly decays via TICT emission and radiationless deactivation. The dimethylamino group of EHDMAB experiences different polar environments in ionic and non-ionic micelles according to the polarity dependence of TICT emission of EHDMAB in organic solvents. In terms of the molecular structures and sizes of EHDMAB and surfactants, each individual EHDMAB molecule should be buried in micelles with its dimethylamino group toward the polar head groups of different micelles and with its 2′-ethylhexyl chain toward the hydrophobic micellar core. Dynamic fluorescence quenching measurements of EHDMAB provide further support for the location of EHDMAB in different micelles.

DUAL CS505—4 LP唱盘

自1994年推出大受LP发烧友欢迎的Orbe唱盘之后,设计师JohnMichel 1已经很久没有推出新产品了,眼前所见这款GyroDec唱盘其实也不能算是全新品。

超声乳化白内障吸除联合小梁切除术治疗闭角型青光眼合并白内障

目的：探讨双切口白内障超声乳化吸除人工晶状体植入联合小梁切除术治疗闭角型青光眼合并白内障的临床疗效。方法：回顾分析双切口白内障超声乳化吸除人工晶状体植入联合小梁切除术治疗闭角型青光眼合并白内障患者65例70眼,术后随访3-12mo,观察视力、眼压及并发症的发生。 结果：术后患者视力≤0.1者2眼,〉0.1-0.3者6眼,0.4-0.8者60眼,≥1.0者2眼,术后眼压在正常范围内（〈21mmHg）者69眼,1眼术后出现浅前房,经治疗改善。 结论：双切口白内障超声乳化吸除人工晶状体植入联合小梁切除术治疗闭角型青光眼合并白内障手术成功率高,疗效佳,是一种理想的手术方式。

膝内外侧双切口双钢板内固定治疗复杂胫骨平台骨折的效果分析

目的分析膝内外侧双切口双钢板内固定手术方法对复杂胫骨平台骨折的治疗效果。方法选取2013年7月~2015年2月收治的86例复杂胫骨平台骨折手术患者,随机分为两组,对照组43例采用膝前正中直切口双钢板固定术,观察组43例采用膝内外侧双切口双钢板内固定术,分析并比较两组的治疗效果。结果观察组手术时间及手术费用均高于对照组,差异有统计学意义(P<0.05);观察组手术出血量与对照组差异无统计意义(P>0.05);观察组住院时间、开始负重时间及骨折愈合时间均少于对照组,差异有统计学意义(P<0.05);术后1年观察组胫骨平台内翻角、后倾角明显小于对照组,差异有统计学意义(P<0.05);观察组术后6个月及术后1年膝关节HSS评分、Rasmussen评分均优于对照组,差异有统计学意义(P<0.05)。结论膝内外侧双切口双钢板内固定治疗复杂胫骨平台骨折,虽增加了手术时间及费用,但能减少住院时间,加快骨折愈合,恢复原有解剖结构,使患者获得更好的膝关节功能,值得参考。在实际应用中,还应根据患者情况合理选择。

左胸颈两切口食管癌切除术(附1835例报告)

回顾性分析 183 5例左胸、颈两切口食管癌切除术的临床资料 ,术后痊愈出院 180 6例 ,临床治愈率为98.42 % ,围手术期死亡 2 9例 (1.5 8% )。术后病理证实淋巴结有转移者 765例 ,总转移率为 41.69% ,分组标记证实颈、胸、腹三组淋巴结转移率分别为 4.63 % (85 /183 5 )、41.5 2 % (762 /183 5 )、19.2 9% (3 5 4/183 5 ) ,残端癌发生率为 1.63 % (3 0 /183 5 ) ,术后 EKG异常者较术前增加 2 0 .11% (186/183 5 ) ,其他并发症发生率为 15 .75 % (2 89/183 5 )。表明左胸、左颈两切口食管癌切除术具有食管癌病灶切除彻底、残端癌发生率低、严重并发症少、近期疗效好等优点。

双切口白内障超声乳化人工晶状体植入联合小梁切除术疗效分析

目的探讨双切口白内障超声乳化人工晶状体植入联合小梁切除术的临床效果。方法双切口白内障超声乳化人工晶状体植入联合小梁切除术治疗青光眼合并白内障患者24例(32只眼);患者术后随访6个月,观察视力、眼压及并发症情况。结果 32只眼中视力﹤0.1者1只眼(3.13%),0.1～0.3者2只眼(6.25%),0.3～0.8者25只眼(78.12%),其中>1.0者4只眼(12.5%);术后眼压控制在正常范围内(<21 mm Hg)者30只眼;2只眼术后术后出现浅前房伴低眼压(<9 mm Hg),经积极治疗后明显改善。结论双切口白内障超声乳化人工晶状体植入联合小梁切除术治疗青光眼白内障的联合手术操作简便、疗效佳,是一种理想的手术方式。

经乳晕下缘切口双平面隆乳术的临床应用

目的:探讨经乳晕下缘切口双平面隆乳术的临床应用。方法:自2007年～2012间,我们在全身麻醉联合局部浸润麻醉下,采用经乳晕下缘内侧切口将假体一部分置于胸大肌下,另一部分置于腺体下的双平面隆乳术,对209例患者进行治疗。结果:患者术后回访3月～4年,除1例患者术后第2天出现血肿,其余患者乳房形态自然,手感好,未见双峰现象,切口瘢痕不明显。结论:双平面隆乳术吸收了传统隆乳术的优点,取得了良好的临床效果;而经乳晕切口操作方便,术后瘢痕不明显,适合于东方女性。

双通道视觉质量系统评估不同方位白内障透明角膜切口手术疗效

目的探讨不同方位白内障透明角膜切口手术疗效以及双通道视觉质量分析系统在白内障手术前后视觉质量评估中的应用。方法收集白内障超声乳化联合囊内人工晶状体植入术患者共64例64眼,根据术中透明角膜切口的位置分为A组(透明角膜切口位于双眼颞侧)和B组(采用正上方透明角膜切口)。所有入选病例均行标准对数视力评估,双通道视觉质量分析系统检测。比较两组视力、MTF截止空间频率(MTF cut-off)、斯特列尔比值(strehl ratio,SR)、客观散射指数(objective scattering index,OSI)值及对比度为100%、20%、9%时的OQAS值(OQAS value,OV100%、OV20%和OV9%)。结果所有患者术后1d、1周裸眼视力及最佳矫正视力均逐渐上升,较术前差异均有统计学意义(P<0.05),1周后视力逐渐趋于稳定;其中A组术后1d、1周裸眼视力及最佳矫正视力均高于同时间点B组患者,差异均有统计学意义(均为P<0.05)。术后1个月及3个月两组间裸眼视力及最佳矫正视力无明显差异(P>0.05)。术后1d及1周两组患者OSI值均较术前逐渐下降,各时间点比较差异均有统计学意义(均为P<0.05),其中A组术后1d(2.81±0.89)及1周(1.98±0.73)OSI值明显低于B组术后1d(3.46±1.17)及1周(2.61±1.20)(均为P<0.05)。两组患者术后1个月及3个月与术后1周比较OSI值均无明显差异(均为P>0.05)。术后1d、1周、1个月及3个月两组患者OV9%值均较术前逐渐上升,各时间点比较差异均有统计学意义(均为P<0.05),其中A组术后1d(0.29±0.09)、1周(0.33±0.12)、1个月(0.37±0.14)及3个月(0.42±0.17)均明显高于B组术后1d(0.24±0.10)、1周(0.27±0.09)、1个月(0.31±0.09)及3个月(0.34±0.14)(均为P<0.05);所有患者术后各时间点MTF值、SR值、OV100%值、OV20%值与术前比较差异均无统计学意义(均为P>0.05)。结论白内障术中采用颞侧角膜切口,术后眼内散射小,视力恢复快,视觉质量高,远期效果有待进一步研究。双通道视觉质量分析系统能进一步量化视觉质量参数,在视觉质量评估方面具有一定优势。

组坯方式对竹木复合层积材胶合性能的影响

竹材和木材都是各向异性材料,其纹理对其表面性能和胶合性能都有重要影响。本研究采用了双切口拉伸试验方法和浸渍剥离试验方法,对比分析竹层板与杨木单板垂直纹理和平行纹理两种组坯方式制备的竹木复合层积材的胶合性能和破坏模式,旨在为生产强度高、尺寸稳定性好的结构用竹木复合材料制备工艺提供理论依据。结果表明:横纹组坯方式生产的竹木复合材在试验中的破坏模式主要为材料被破坏,其胶合强度更好;由于竹拼板间横向强度较差,用该工艺生产出的竹木复合材作为Ⅰ类人造板其胶合强度不合格,作为Ⅱ类人造板的胶合强度合格。

两种治疗胫骨平台骨折手术的对比分析

目的：比较双切口双钢板内固定术与膝前正中切口锁定钢板内固定术治疗SchatzkerⅤ、Ⅵ型胫骨平台骨折的手术效果。方法：将年龄22～67岁的76例SchatzkerⅤ、Ⅵ型胫骨平台骨折患者随机分为：经膝前正中切口锁定钢板内固定手术组（对照组）38例和双切口双钢板内固定手术组（实验组）38例。术后就这两种手术的疗效进行评价。结果：两组间的比较，均有显著统计学差异（P＜0.05），实验组的手术时间及住院时间、术中出血量显著少于对照组；两组术后骨折愈合时间比较，无统计学差异（（P＞0.05）；两组并发症如关节强直、骨折延迟愈合、针道感染、骨折延迟愈合、膝内翻的比较均有显著统计学差异（P＜0.05），实验组的并发症明显较少。而内固定松动断裂、膝关节不稳、切口感染、皮肤坏死、骨坏死及骨不愈合多项并发症比较，无统计学差异（（P＞0.05）；两组患者术后Rasmussen分级比较，有显著统计学差异，实验组疗效明显优于对照组。结论：对于SchatzkerⅤ、Ⅵ型胫骨平台骨折，双切口双钢板内固定术的手术时间短，治疗效果较好，并发症较少。

硬膜外穿刺针在单切口双通道腹腔镜治疗小儿斜疝中的临床应用

目的探讨硬膜外穿刺针在单切口双通道腹腔镜治疗小儿斜疝的临床价值。方法回顾性分析2011-01—2013-06间应用硬膜外穿刺针在单切口双通道腹腔镜治疗小儿斜疝143例的临床资料,对平均手术时间、术后并发症、术后有无复发等资料进行研究。结果 143例手术均顺利完成,手术时间单侧（8±3）min,双侧（14±3）min,术中发现对侧隐匿疝32例,术后未出现明显并发症。术后随访6个月～2年,未见复发。结论利用硬膜外穿刺针经脐单切口双通道腹腔镜下治疗小儿斜疝,无需使用特殊器械,操作简单,效果确切,易于推广。

兼顾矫正乳房中度下垂的隆乳术

目的:探讨应用乳晕周围双环切口隆乳同时悬吊乳房,矫正小乳症伴中度乳房下垂的方法。方法:采用乳晕周围双环形切口,在乳腺的上半象限纵行切开,按胸大肌纤维走向钝性分离至胸大肌后形成间隙,置入乳房假体。用4号丝线将切开的乳腺组织与胸大肌分离口两侧贯穿预缝置4针,打结闭合胸大肌分离口的同时将乳腺固定于胸大肌上,上部乳腺组织筋膜同时缝合固定在肋软骨膜上,以达到隆乳术同时矫正乳房下垂。结果:用本法矫正小乳症伴中度乳房下垂者26例,效果良好。结论:本手术方法简单易行,无须附加乳晕周围以外切口,瘢痕不明显,是矫正小乳症伴中度下垂的一种较好方法。

髋部双切口在股骨顺行交锁髓内钉中的应用

交锁髓内钉固定已成为治疗股骨干骨折的标准术式[1],但采用髋部单一切口有时会影响梨状窝的准确定位开口,导致术中骨折扩髓、复位、固定困难.2005年3月～2010年10月,我科采用髋部双切口治疗65例股骨干骨折患者,取得了满意的效果,报道如下.

经乳晕切口双平面隆乳术的临床研究

回顾性分析经乳晕缘切口行双平面（即乳腺下与胸大肌下）隆乳术的临床效果。运用乳晕切口完成双平面隆乳术，对于部分乳房下垂患者可以同时行乳房下垂悬吊矫正，去除乳晕多余的皮肤。部分患者随访3个月~2年，乳房外形丰满圆润，形态自然，无包膜挛缩、假体移位破裂等并发症。经乳晕缘切口可以完成双平面隆乳术，无需内窥镜指导，手术在直视下完成，操作简便。