Extending the Transmission Distance in Repeaterless Submarine Fiber Optic Cable with DFRA

DFRA and optimization on structure of product

DFRA与产品结构优化

Meanwhile, comparison tests with EDFA show that DFRA has better performances when it is used as in-line amplifiers in the remote FOH system.

同时将分布式光纤拉曼放大器和掺铒光纤放大器进行了实验对比，结果表明前者可以作为远程光纤水听器系统的在线放大器，并且具有比后者更好的噪声性能。

A total of 46 DFRs were identified, with the gene number from 2 to 41.

通过分析，共发现有46个差异区段，这些差异区段所含有的基因数量从2个到41个不等。

Results 42 cases were classified into conventional, fibrosarcoma lesion, myxoid and melanin pigmented DFSP.

结果42例肿瘤可分为经典型、纤维肉瘤变型、粘液型和色素型。

Conclusions A slowly enlarged painless cutaneous or subcutaneous nodules quickly growing in recent time is the clinical characteristic feature of DFSP.

结论皮内或皮下缓慢生长的无痛性小结节于近期生长加快为该病的临床特征；

Once the tumor is diagnosed as DFSP after local excision, it is necessary to take wide excision.

在局部切除术后，一经病理检查确诊为DFSP，必须施行补充广泛切除以避免肿瘤残留；

Results DFSP, with low malignancy, slow growth, rare metastasis, was easy to relapse.

结果该肿瘤属低度恶性，生长缓慢，很少转移，但易复发；

Radiotherapy can not reduce the recurrence rate of DFSP in the patients only receiving local resection.

放射治疗不能降低局部复发率。

CD34 is positive and very characteristic for diagnosis and identification of DFSP.

CD34稳定阳性表达对隆突性皮肤纤维肉瘤的诊断及鉴别诊断有一定意义。

Methods The clinical and pathological data of 128 patients with DFSP treated at 81 Hospital of PLA from 1969 to 2001 were reviewed retrospectively.

方法1969～2001年我院共收治128例隆突性皮肤纤维肉瘤患者，对其临床和病理资料进行回顾性分析。

3-year disease-free survival rate ( DFSR) of the young and postmenopausal women with breast cance were 78.6%, 93.1% respectively, and significant difference was observed ( P < 0.05).

青年组与绝经组3年无病生存率（DFSR）分别为78.6%，93.1%，差异明显（P<0.05）。

The five-year survival rate ( SR), disease free survival rate ( DFSR) were 65 6% and 54 5%, respectively.

总的5年生存率、无瘤生存率分别为65.6%和54.5%。

At last, the DFST algorithm and the depth first search algorithm of the AI are compared and the differences between them are showed.

最后，将该算法与人工智能中的深度优先搜索算法[3]进行了比较，阐述了其中的不同之处。

Only in exceptional circumstances DFTT may allow Client to revoke or amend the relevant instruction or Order.

只有在特殊情况下DFTT才允许客户撤销或修订有关指示或下单。

Once Client's instructions or Orders are given to DFTT, they cannot be revoked.

DFTT一旦接受客户指示或下单，他们不能被撤销。

DFTT will handle all of Client's personal data according to the relevant Laws and Regulations for the protection of personal data.

DFTT将会根据相关法律和政策的关于保护个人数据的规定处理客户的个人数据。

DFTT shall notify Client of the relevant amendment either in writing or through its webpage.

DFTT以书面形式或网站通知客户有关的修正案。

It shall be valid for an indefinite time period until its termination by DFTT with notice.

它的有效期直至DFTT公司通知客户终止协议为止。

Client chooses desirable operation and makes a request for the transaction confirmation by DFTT.

客户选择理想的操作时机下单并要求DFTT提供交易确认。

Client involves DFTT directly or indirectly in any type of fraud.

客户利用DFTT直接或间接参与在任何类型的欺诈。