Influence of Filter Tube of Pumping Well on Groundwater Drawdown during Deep Foundation Pit Dewatering

The partial penetrating waterproof curtain combined with pumping wells is widely applied to deep foundation pit dewatering engineering. The filter tube of the pumping well plays a critical role on the environment effect that resulted from foundation pit dewatering. This paper investigated the impact of the filter tube on the groundwater drawdown outside the pit to provide a theoretical basis for the foundation pit dewatering design. Three patterns according to the relative position of the waterproof curtain and the filter tube, which are called wall-well patterns, namely the full-closed pattern, part-closed pattern, and none-closed pattern, have been analyzed. By taking a practice engineering case in Shanghai as an example, the relationship among the proportion of the filter tube length to the dewatering aquifer thickness, the buried depth difference of the wall-well, and the groundwater drawdown difference at both sides of the waterproof curtain are discussed by numerical simulation. The full-closed pattern is the optimal wall-well pattern on the ideal condition. The suggested and optimal values of the filter tube length to the dewatering aquifer thickness are 38.7% and 58.2%. The suggested and optimal values of the buried depth difference of the wall-well are −6.41 m and −1.92 m.

Pola Rekrutmen Anggota dalam Mengembangkan Baitul Maal Wa Tamwil Sanama Cileunyi Bandung

Krisis ekonomi yang melanda bangsa Indonesia sekarang ini, telah menggugah banyak pihak untuk memikirkan bagaimana mengembangkan usaha menengah kecil sebagai fundamen ekonomi Indonesia mendatang. Bangsa Indonesia yang merupakan kaum mayoritas Islam dituntut untuk berpartisipasi. Kemudian pada tahun 1992 berdirilah Bank Muammalat Indonesia sebagai bukti awal dari kepedulian umat Islam terhadap ekonomi Indonesia. Seiring bergulirnya waktu berdirilah Lembaga Keuangan yang berbasiskan Syari’at, salah satunya yaitu BMT. BMT sebagai Lembaga Ekonomi Syari’ah mempunyai amanah untuk mengembangkan ekonomi Islam, salah satunya dengan cara pengelolaan dan pemanfaatan SDM yang ada, dengan melaksanakan perekrutan sejumlah anggota sebagai staff yang berkualitas dengan tujuan untuk menghasilkan sejumlah anggota yang sesuai dengan apa yang diharapkan. Karena perekrutan anggota yang berkualitas sangat berpengaruh terhadap perkembangan BMT itu sendiri. Dengan demikian ekonomi Islam akan ikut berkembang dan maju. Penelitian ini bertujuan untuk mengetahui rekrutmen, fungsi rekrutmen, dan pola rekrutmen yang dilakukan di BMT Sanama Cileunyi Bandung, juga untuk mengetahui upaya penghimpunan dan penyaluran dana sekaligus upaya sosialisasi produk di BMT Sanama Cileunyi Bandung kepada masyarakat. Penelitian ini menggunakan metode deskriptif yang akan menggambarkan bagaimana rekrutmen, fungsi rekrutmen, pola rekrutmen, dan hasil daripada rekrutmen anggota di BMT Sanama Cileunyi Bandung. Sedangkan untuk teknik pengumpulan data, penulis melakukan teknik wawancara dengan staff dan pengurus BMT Sanama Cileunyi Bandung, teknik observasi, dan studi dokumentasi. Data yang ditemukan menunjukan bahwa fungsi rekrutmen menurut BMT Sanama yaitu: (1) Untuk memikat para pelamar (2) Untuk menyaring calon pelamar (3) Untuk menambah staff (pegawai) bagi BMT Sanama (4) Untuk memperluas jaringan kerja BMT Sanama (5) Agar bisa menambah jenis produk BMT Sanama (6) Agar lebih mudah mensosialisasikan segala jenis produknya. Sedangkan pola rekrutmen anggota yang dilakukan di BMT Sanama dilakukan dengan pola tertutup, dimana hanya pelamar-pelamar yang memenuhi kualifikasi perusahaan lah yang dapat melamar ke BMT Sanama. Adapun hasil yang dicapai dari pola rekrutmen yang diterapkan di BMT Sanama sangatlah berpengaruh terhadap perkembangan BMT, karena BMT Sanama menggunakan pola rekrutmen tertutup sehingga pelamar kerja yang masuk pun akan sesuai dengan yang diinginkan oleh BMT Sanama. The current economic crisis hitting the Indonesian nation has inspired many parties to think about how to develop small and medium enterprises as the foundation of Indonesia's future economy. The Indonesian nation, which is the majority of Muslims, is required to participate. Then in 1992 Bank Muammalat Indonesia was established as early evidence of the concern of Muslims for the Indonesian economy. As time went on, Syari'at-based financial institutions were established, one of which was BMT. BMT as a Shari'ah Economic Institution has the mandate to develop an Islamic economy, one of which is by managing and utilizing existing human resources, by recruiting a number of members as qualified staff with the aim of producing a number of members who are in accordance with what is expected. Because the recruitment of qualified members is very influential on the development of BMT itself. Thus the Islamic economy will also develop and advance. This study aims to determine recruitment, recruitment functions, and recruitment patterns carried out at BMT Sanama Cileunyi Bandung, as well as to determine efforts to raise and distribute funds as well as efforts to socialize products at BMT Sanama Cileunyi Bandung to the public. This study uses a descriptive method that will describe how the recruitment, recruitment function, recruitment patterns, and results of member recruitment at BMT Sanama Cileunyi Bandung. As for data collection techniques, the authors conducted interview techniques with staff and administrators of BMT Sanama Cileunyi Bandung, observation techniques, and study documentation. The data found shows that the recruitment function according to BMT Sanama is: (1) To attract applicants (2) To screen potential applicants (3) To add staff (employees) to BMT Sanama (4) To expand the work network of BMT Sanama (5) In order to add more types of BMT Sanama products (6) In order to make it easier to socialize all types of products. Meanwhile, the member recruitment pattern at BMT Sanama is carried out with a closed pattern, where only applicants who meet the company's qualifications can apply to BMT Sanama. The results achieved from the recruitment pattern implemented at BMT Sanama greatly influence the development of BMT, because BMT Sanama uses a closed recruitment pattern so that the incoming job applicants will match what BMT Sanama wants.

Science between and against disciplines in the social sciences and humanities

The article describes the role of interdisciplinarity in the process of making science. Two patterns of research and development of discipline are presented: the closed pattern which concentrates on specialization and the open pattern which fosters interdisciplinary science. The key to success is always openness for new scientific experiences and communities. The conclusion of the article is a proposal for finding new scientific communities, which could be interested in new ideas, research and thoughts where interdisciplinary analyses are not acceptable to the local scientific community.

Robust Tracking of a Cost-Effective Micro-Stereolithography System Based on a Compliant Nanomanipulator

Micro-stereolithography (MSL) has emerged as a promising and challenging technique in micro-/nano-scale additive manufacturing. Besides the requirement of the light source, the motion system requires ultra-high-precision tracking capability to reach the right location for every solidification event. To achieve single-digit micron feature size of the fabrication, we propose a robust control strategy to support a self-developed cost-effective MSL prototype based on a compliant nanomanipulator and a blue light-emitting diode (LED) module. In particular, the nonlinearity and parameter-variation of the compliant manipulator are dealt with by a robust radial basis function (RBF)-based neural network, and the repetitive control (RC) is innovatively integrated with RBF to improve the tracking performance of a closed pattern. Various simulations and real-time experiments are conducted to validate the proposed control strategy. The fabrication of a closed pattern will not begin by turning on the laser source until the tracking error reaches submicrons, and the fabrication results demonstrate that the cost-effective MSL system is capable of fabricating 2.5 µm feature size in a 0.5 mm working range.

Distributed Mining of Closed Patterns from Multi-Relational Data

In multi-relational data mining (MRDM), there have been proposed many methods for searching for patterns that involve multiple tables (relations) from a relational database. In this paper, we consider closed pattern mining from distributed multi-relational databases (MRDBs). Since the computation of MRDM is costly compared with the conventional itemset mining, we propose some efficient methods for computing closed patterns using the techniques studied in Inductive Logic Programming (ILP) and Formal Concept Analysis (FCA). Given a set oflocaldatabases, we first compute sets of their closed patterns (concepts) using a closed pattern mining algorithm tailored to MRDM, and then generate the set of closed patterns in the global database by utilizing themergeoperator. We also present some experimental results, which shows the effectiveness of the proposed methods.