中国乡镇企业发展的理论诠释:总结与借鉴

乡镇企业的制度形成、发展与运作模式,早已引起学者相当广泛的讨论,同时也已累积了相当多有价值的理论文献和实证材料。可归纳为:财政改革与产权私有化诱因论、利润分享与产权非正式私有制、地方性市场社会主义论、合作文化论与合作式的集体行动论。借鉴国外学者的研究角度和分析方法有助于我们自身的理论创新

Application of the three-dimensional visualization and 3D printing technology for the preoperative evaluation of retroperitoneal tumors

目的探讨三维重建及3D打印技术在腹膜后肿瘤术前评估中的应用价值。方法回顾性分析2011年3月至2015年9月厦门大学附属成功医院收治的50例腹膜; 后肿瘤病人的临床资料,应用人体器官三维建模软件将病人的CT二维图像重建成三维可视化图像,使用人体器官模型3D打印设备,用两色热塑性塑料打印实物模; 型,通过观察肿瘤与腹腔器官、腹部大血管之间的关系进行术前评估并制定手术方案。实施手术,术中比较重建结果与实际的区别。结果50例病人均成功完成三维; 重建,其中10例病人完成3D打印,三维重建结果及3D打印模型能够立体、清晰和实物化的显示肿瘤解剖学位置及与周围器官、血管的毗邻关系,与术中实际情; 况大致相符。50例病人均顺利施行手术,术中无死亡。结论三维重建及3D打印技术能够对腹膜后肿瘤术前进行精准评估,对指导手术具有一定的应用价值。Objective To explore the application value of three dimensional; visualization and 3D printing technology in the preoperative evaluation; of retroperitoneal tumors. Methods March 2011 to September 2015,the; clinical data of 50 cases of retroperitoneal tumor patients in Xiamen; University Affiliated successful hospital were retrospectively analyzed.; Xiamen strong science and technology R & D human organ 3D modeling; software will reconstruct 2D CT image visualization into a; three-dimensional visualization image,and then it can print physical; model with the company's XMQB-I human organ model 3D printing equipment; and white thermoplastic. At last,preoperative evaluation and surgical; plan can be made through the relationship between the tumor,organs in; abdominal cavity,and abdominal vascular. During the surgery,make a; comparison between the visualization results with the actual condition.; Results 50 cases of patients were successfully completed the; three-dimensional visualization,including 10 cases of patients; completed. Three-dimensional visualization and 3D printing model can; three-dimensionally,clearly show the adjacent relationship between the; anatomical tumour location and surrounding organs and blood; vessels,broadly in line with the actual surgery. 50 surgeries were; successfully performed,no death during perioperative period. Conclusion; Three dimensional visualization and 3D printing technology can make an; accurate preoperative evaluation of retroperitoneal tumors,which has a; certain application value for guiding surgery.国家自然科学基

结肠癌伴孤立巨大肝转移切除术一例

患者男,72岁,因“反复中上腹胀痛不适1月余“入院;既往有乙肝病史,无高血压、糖尿病、心脏病等病史,无手术史。入院查CT示:左肝巨大占位,约22.1 CMx11.3 CM,与胃小弯粘连(图1);门静脉右支无显示(图2),左结肠壁增厚,考虑结肠癌肝转移可能。肿瘤标记物检查示:CEA 54.52μg/l,CA19-9 120.10 u/Ml,AfP正常,血常规、血液生化分析未见国家自然科学基金资助项目(81272246、81101502、61271336、61327001

Application of a three-dimensional visualization technology for precise before retroperitoneal tumor surgery(Report of 15 cases)

目的探讨三维可视化技术在腹膜后肿瘤术前评估中的应用价值。方法回顾性分析2011年3月至2013年12月厦门大学附属成功医院收治的15例腹膜后肿瘤病人的临床资料,应用三维可视化技术将病人术前二维CT图像进行三维可视化重建,通过观察肿瘤与腹腔脏器、腹部大血管之间的关系及测量肿瘤体积、手术模拟进行术前评估。对实施手术的病人,比较重建结果与实际手术的区别,对模拟切除肿瘤体积与实际切除肿瘤体积进行相关性分析。结果 15例病人三维可视化重建后图像清晰立体地显示肿瘤组织、腹腔实质脏器、腹腔大血管的解剖结构及毗邻关系,12例评估后行腹膜后肿瘤切除术,三维重建肿瘤的解剖关系与术中大致相符。12例手术病人术前模拟切除肿瘤体积(1117.50±690.35)M l,实际切除肿瘤体积(1189.92±737.74)M l,两者比较差异无统计学意义(T=0.25,P>0.05),具有相关性(r=0.81,P0.05).The actual liver resection volume was positively correlated with the predicted liver resection volume(r=0.81, P<0.05).Conclusions The three-dimensional visualization technology has acertain degree of clinical value in the precise before retroperitoneal tumor surgery.国家自然科学基金资助(No.81272246;81101502;61271336;61327001

The Cracking Strength of Fiber Reinforced Concrete Beams in Pure Torsion

本文通过对矩形钢纤维检梁的纯扭试验，得出了钢纤维政梁的抗裂强度表达式，试验研究和理论分析对钢纤维破构件的抗扭研究均有一定价值。This paper shows the craching Strenth of rectangular concrete with fibers subjected to pure tor sion.The research is valuable for fiber concrete beams in torsion

钢纤维砼受扭构件的变角空间桁架模型和斜弯破坏模型

本文在钢筋砼受扭构件的变角空间桁架理论及斜弯破坏理论基础上,建立了钢纤维砼的变角空间桁架模型,并以斜弯破坏模型加以验证。通过12根钢纤维砼梁的纯扭试验,对理论公式进行了凹归分析

Preliminary SDS-PAGE analysis of protein synthesis in Biddulphia sinensis grown under different light quality

初步分析光质对海洋硅藻中华盒形藻蛋白质合成的影响，发现在红光、蓝光和白光下蛋白质合成的量和种类有所不同。并对硅藻SdS-PAgE样品制备法作了改进，即增加1次甲醇冲洗步骤，通过加热/冷冻循环破碎硅藻细胞。The effect of light quality on protein synthesis of marine diatom Biddulphia sinensis was pre liminarily investigated.Protein amounts and species synthesized in red, blue and white light were somewhat different.And, the proparation of diatom protein sample for SDS-PAGE was improved, i.e., adding a methanol-washing step, breaking diatom cells by 2 cycles of heating/freezing.国家自然科学基金!3967007